PR target/58115

[official-gcc.git] / gcc / ada / ChangeLog-2004

2004-12-30  Sohail Somani  <sohail@sohailsomani.com>

        PR ada/19128
        * trans.c (gnat_to_gnu): Fix typo: Use correct return variable.

2004-12-23  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * trans.c (Attribute_to_gnu): Adjust call to get_inner_reference.
        * utils2.c (build_unary_op): Likewise.

2004-12-22  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (mark_visited): Set TYPE_SIZES_GIMPLIFIED.

2004-12-19  Richard Henderson  <rth@redhat.com>

        * trans.c (gigi): Update gimplify_body call.

2004-12-09  Nathan Sidwell  <nathan@codesourcery.com>

        * decl.c (gnat_substitute_in_type): Remove SET_TYPE case.

2004-12-07  Ed Falis  <falis@adacore.com>

        * s-intman-vxworks.adb (Notify_Exception): removed useless check for
        current task being suspended.

        * init.c (__gnat_clear_exception): added to reset VxWorks exception
        count.
        (__gnat_map_signal): removed test for current task being suspended.

2004-12-07  Gary Dismukes  <dismukes@adacore.com>

        * a-exexpr.adb (Others_Value, All_Others_Value): Change initial values
        from 16#BEEF# to 16#7FFF# to avoid exceeding Integer'Last on 16-bit
        targets (such as AAMP).

2004-12-07  Ed Schonberg  <schonberg@adacore.com>

        * atree.adb (Visit_Itype): Create a new name for the generated itype,
        because the back-end may otherwise treat it as a redefinition of the
        old symbol.

2004-12-07  Eric Botcazou  <ebotcazou@adacore.com>

        * back_end.adb (Scan_Back_End_Switches): Accept --param.

        * lang-specs.h: Accept --param.

2004-12-07  Vincent Celier  <celier@adacore.com>

        * make.adb (Check_Mains, Switches_Of): Adapt to name changes in
        package Prj (Current_Spec_Suffix => Ada_Spec_Suffix,
        Current_Body_Suffix => Ada_Body_Suffix).
        Take into account Externally_Built attribute.

        * clean.adb (In_Extension_Chain): Always return False when one of the
        parameter is No_Project.
        (Clean_Project): Adapt to changes in package Prj (Lang_Ada =>
        Ada_Language_Index).
        (Gnatclean): Adapt to change in package Prj.Pars (no parameter
        Process_Languages for procedure Parse).

        * gnatcmd.adb (Carg_Switches): New table.
        (GNATCmd): Put all switches following -cargs in the Carg_Switches table.
        Adapt to name changes in package Prj (Current_Spec_Suffix =>
        Ada_Spec_Suffix, Current_Body_Suffix => Ada_Body_Suffix).

        * mlib-prj.adb: Adapt to changes in packages Prj and Prj.Com: type
        Header_Num and function Hash are now declared in package Prj,
        not Prj.Com.

        * prj.adb (Suffix_Of): New function.
        (Set (Suffix)): New procedure.
        (Hash): One function moved from Prj.Com
        (Is_Present, Language_Processing_Data_Of): New functions
        (Set): Two new procedures
        (Add_Language_Name, Display_Language_Name): New procedures

        * prj.ads: (Suffix_Of): New function
        (Set (Suffix)): New procedure
        Add several types and tables for multi-language support.
        (Header_Num): Type moved from Prj.Com
        (Hash): Two functions moved from Prj.Com
        (Is_Present, Language_Processing_Data_Of): New functions
        (Set): Two new procedures
        (Add_Language_Name, Display_Language_Name): New procedures
        (Naming): Component name changes:
        Current_Spec_Suffix => Ada_Spec_Suffix,
        Current_Body_Suffix => Ada_Body_Suffix. Add new components:
        Impl_Suffixes, Supp_Suffixes.
        (Project_Data): New components: Externally_Built, Supp_Languages,
        First_Language_Processing, Supp_Language_Processing, Default_Linker,
        Default_Linker_Path.

        * prj-attr.adb: Add new attributes Ada_Roots and Externally_Built and
        new package Language_Processing with its attributes (Compiler_Driver,
        Compiler_Kind, Dependency_Option, Compute_Dependency, Include_Option,
        Binder_Driver, Default_Linker).

        * prj-com.ads, prj-com.adb (Hash): Function moved to package Prj.
        (Header_Num): Type moved to package Prj

        * prj-env.adb: Adapt to name changes in package Prj
        (Current_Spec_Suffix => Ada_Spec_Suffix,
        Current_Body_Suffix => Ada_Body_Suffix).

        * prj-ext.adb: Add the default project dir (<prefix>/log/gnat) by
        default to the project path, except the "-" is one of the directories
        in env var ADA_PROJECT_PATH.
        (Current_Project_Path): Global variable, replacing Project_Path
        that was in the body of Prj.Part.
        (Project_Path): New function
        (Set_Project_Path): New procedure
        Initialize Current_Project_Path during elaboration of the package
        Remove dependency on Prj.Com, no longer needed

        * prj-ext.ads (Project_Path): New function
        (Set_Project_Path): New procedure

        * prj-nmsc.adb (Body_Suffix_Of): New function. Returns .<lang> when no
        suffix is defined for language <lang>.
        (Find_Sources, Record_Other_Sources): Use Body_Suffix_Of, instead of
        accessing directly the components of Naming.
        (Look_For_Sources): Use Set (Suffix) to set the suffix of a language.
        Reorganise of this package.
        Break procedure Check in several procedures.

        * prj-nmsc.ads: Replace all procedures (Ada_Check,
        Other_Languages_Check and Language_Independent_Check) with a single
        procedure Check.

        * prj-pars.ads, prj-pars.adb (Parse): Remove parameter
        Process_Languages, no longer needed.

        * prj-part.adb (Project_Path): Move to the body of Prj.Ext as
        Current_Project_Path.
        Remove elaboration code, moved to the body of Prj.Ext
        Use new function Prj.Ext.Project_Path instead of old variable
        Project_Path.
        (Post_Parse_Context_Clause): Get Resolved_Path as a case-sensitive path.
        When comparing with project paths on the stack, first put the resolved
        path in canonical case.
        (Parse_Single_Project): Set the path name of the project file in the
        tree to the normalized path.

        * prj-proc.ads, prj-proc.adb (Check, Recursive_Check, Process): Remove
        parameter Process_Languages, no longer needed.
        (Recursive_Check): Call Prj.Nmsc.Check, instead of Ada_Check and
        Other_Languages_Check.

        * prj-tree.ads (Project_Name_And_Node): New component Canonical_Path
        to store the resolved canonical path of the project file.
        Remove dependency to Prj.Com, no longer needed

        * prj-util.adb: Adapt to name changes in package Prj
        (Current_Spec_Suffix => Ada_Spec_Suffix, Current_Body_Suffix =>
        Ada_Body_Suffix).

        * snames.ads, snames.adb: New standard names: Ada_Roots, Binder_Driver,
        Compiler_Driver, Compiler_Kind, Compute_Dependency, Default_Linker,
        Externally_Built, Include_Option, Language_Processing.

        * makegpr.adb: Numerous changes due to changes in packages
        Prj and Prj.Nmsc.

        * gnatls.adb: Add the default project dir (<prefix>/log/gnat) by
        default to the project path, except whe "-" is one of the directories
        in env var ADA_PROJECT_PATH.
        (Gnatls): In verbose mode, add the new section "Project Search Path:"

2004-12-07  Robert Dewar  <dewar@adacore.com>

        * debug.adb: Document that -gnatdA automatically sets -gnatR3m

        * gnat1drv.adb (Gnat1drv): If debug flag A set, then automatically
        set -gnatR3m mode.

        * repinfo.adb (List_Rep_Info): Remove special handling of -gnatdA
        flag. No longer needed now that we handle this in gnat1drv.adb.

        * repinfo.ads: Minor reformatting

2004-12-07  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
            Olivier Hainque  <hainque@adacore.com>
            Eric Botcazou  <ebotcazou@adacore.com>

        * decl.c (maybe_pad_type): Use TYPE_SIZE_UNIT of the input type for
        TYPE_SIZE_UNIT of result type if SIZE is not specified.
        (make_aligning_type): Pass -1 as ADDRESSABLE to prevent the creation
        of a bitfield, which we know is useless and causes trouble because of
        alignment implications.

        * utils.c (create_var_decl): Set DECL_COMMON again on targets without
        BSS sections.
        (process_attributes): Clear DECL_COMMON again when a section attribute
        is present.
        (finish_record_type): Independently track if RECORD_TYPE has SIZE and/or
        SIZE_UNIT already set and use to compute final SIZE and SIZE_UNIT.
        (create_field_decl): Special case ADDRESSABLE negative to mean
        "no bitfield creation", to be used by make_aligning_type. Don't
        restrict bitfield creation to !ADDRESSABLE any more, as some BLKmode
        fields claimed addressable still have to be bitfields. Use
        value_factor_p instead of a raw binop construction to check for the
        position's alignment.

2004-12-07  Geert Bosch  <bosch@adacore.com>

        * eval_fat.adb: Revert previous change.

2004-12-07  Thomas Quinot  <quinot@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * exp_ch4.adb (Expand_N_Indexed_Component): For an indexed component
        with an implicit dereference as its prefix, use
        Insert_Explicit_Dereference instead of merely rewriting the prefix into
        an explicit dereference. This ensures that a reference to the original
        prefix is generated, if appropriate.

        * sem_util.adb (Insert_Explicit_Dereference): When an implicit
        dereference is rewritten to an explicit one, generate a reference to
        the entity denoted by its prefix using the original prefix node, so
        the dereference can be properly recorded as a read of the denoted
        access value, if appropriate.

        * sem_warn.adb (Output_Unreferenced_Messages): Do not abstain from
        emitting 'assigned but never read' warning on a variable on the basis
        that it has an access type.
        (Check_References): Emit unreferenced warning when the scope is a
        subprogram body.

2004-12-07  Robert Dewar  <dewar@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * exp_ch6.adb (Expand_Call): Add comment on handling of back end
        intrinsic

        * exp_intr.adb (Expand_Intrinsic_Call): Ignore unrecognized intrinsic,
        leaving call unchanged.
        This deals with the case where the pragma Import specified
        an external name, to be handled by the back end.

        * sem_prag.adb (Process_Import_Or_Interface): Do not check validity of
        subprogram which is Imported with convention Intrinsic if an
        External_Name argument is specified.
        (Process_Import_Or_Interface): Properly diagnose link name argument.
        (Inlining_Not_Possible): New name for Cannot_Inline, to avoid confusion
        with Sem_Ch6.Cannot_Inline.
        (Process_Inline): Provide separate warning for inapplicable inline
        pragma.
        (Cannot_Inline): Reject subprograms that have an at_end handler, so that
        treatment is uniform on different targets.

2004-12-07  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch7.adb (Expand_Cleanup_Actions): If statement sequence of
        construct is rewritten, preserve end label to permit source navigation.

2004-12-07  Thomas Quinot  <quinot@adacore.com>

        * exp_dist.adb (Specific_Build_General_Calling_Stubs,
        Specific_Build_Stub_Target): New subprograms.
        (Build_Subprogram_Calling_Stubs): Make this procedure independent from
        the PCS implementation used, using the above PCS-customized subprograms.
        Minor reformatting.
        (PolyORB_Support.Helpers): New subunit containing supporting subprograms
        for generation of DSA code targeted to the PolyORB PCS.
        (Add_Stub_Type): Rewrite to isolate the parts that are specific to one
        implementation of the partition communication subsystem in ancillary
        subprograms.
        (Specific_Build_Stub_Type, GARLIC_Support.Build_Stub_Type,
        PolyORB_Support.Build_Stub_Type): New subrograms containing the
        PCS-specific part of Add_Stub_Type.
        (Insert_Partition_Check): Use runtime library function to perform
        E.4(19) check.

        * rtsfind.ads: New entity System.PolyORB_Interface.Make_Ref
        (RE_Same_Partition): New entity, from s-parint.

        * s-parint.ads, s-parint.adb (Same_Partition): New subprogram.

2004-12-07  Gary Dismukes  <dismukes@adacore.com>

        * gnatmem.adb, gnatname.adb, gnatsym.adb, gprcmd.adb, vms_conv.adb:
        Output the copyright message on a separate line from the version
        message.

2004-12-07  Joel Brobecker  <brobecker@adacore.com>

        * g-os_lib.adb (Spawn): Explicitly initialize Saved_Error to avoid a
        compile-time warning.

2004-12-07  Robert Dewar  <dewar@adacore.com>

        * g-regpat.adb: (Match): Change a misuse of or to or else

2004-12-07  Ed Schonberg  <schonberg@adacore.com>

        * lib-xref.adb:
        (Generate_Reference): Handle properly a reference to an entry formal,
         when an accept statement has a pragma Unreferenced for it.

        * sem_ch9.adb (Analyze_Accept_Statement): Reset the Is_Referenced flag
        and the Has_Pragma_Unreferenced flag for each formal before analyzing
        the body, to ensure that warnings are properly emitted for each accept
        statement of a given task entry.

2004-12-07  Vasiliy Fofanov  <fofanov@adacore.com>

        * Makefile.in: Add support for foreign threads on VMS.

2004-12-07  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * misc.c (gnat_types_compatible_p, LANG_HOOKS_TYPES_COMPATIBLE_P):
        Remove.
        (LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS): New.

        * adaint.h: (__gnat_dup, __gnat_dup2): Add missing decls.

        * trans.c (Exception_Handler_to_gnu_sjlj): Also handle renamed
        exception.
        (call_to_gnu): Convert to actual DECL_ARG_TYPE, not variant of it.

2004-12-07  Robert Dewar  <dewar@adacore.com>

        * nlists.adb (Prepend_Debug): Remove parameters and nest within
        Prepend.
        (Remove_Next_Debug): Same fix

        * nlists.ads: Correct bad comments for Prev and Prev_Non_Pragma (we do
        maintain back pointers now, though we did not used to, and comments
        were out of date).
        (Prepend): Remove pragma Inline.
        (Remove_Next): Same cleanup

2004-12-07  Thomas Quinot  <quinot@adacore.com>

        * sem_ch4.adb (Process_Implicit_Dereference_Prefix): New subprogram
        used to record an implicit dereference as a read operation on its
        prefix when operating under -gnatc. Necessary to avoid spurious
        'variable assigned but never read' warnings in that mode.
        (Process_Indexed_Component, Analyze_Selected_Component): When the prefix
        is a non-overloaded implicit dereference, call the above subprogram to
        ensure proper recording of references.

2004-12-07  Gary Dismukes  <dismukes@adacore.com>

        * sem_ch5.adb (One_Bound): Remove call to Resolve, as the bound needs
        to be resolved later as part of Analyze_Iteration_Scheme's call to
        Make_Index.

2004-12-07  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch8.adb (Find_Type): If node is a reference to 'Base and the
        prefix is not a scalar type, place error message on prefix, not on
        type entity.

2004-12-07  Bernard Banner  <banner@adacore.com>

        * vxaddr2line.adb: Add support for x86 vxworks

2004-12-07  Thomas Quinot  <quinot@adacore.com>

        * g-socket.ads (Get_Host_By_Address, Get_Host_By_Name): Clarify
        documentation of the behaviour of these functions when passed an IP
        address that has no record in the system hosts database and no reverse
        record in the DNS.

        * cstand.adb, a-tags.ads: Fix typos in comment.

2004-12-07  Robert Dewar  <dewar@adacore.com>

        * exp_ch2.adb, exp_ch3.adb, exp_ch5.adb, exp_ch8.adb,
        exp_ch9.adb, exp_pakd.adb, interfac.ads, sem_ch6.adb,
        sem_ch7.adb, sem_ch10.adb, sem_ch13.adb, sem_ch3.adb,
        s-poosiz.ads: Minor reformatting

        * make.adb: Minor reformatting
        Add some ??? comments asking for more comments

        * s-poosiz.adb: Minor reformatting
        Add comments on alignment requirement

        * sinfo.ads: Remove obsolete comment and fix typo.

2004-12-07  Vincent Celier  <celier@adacore.com>
            Sergey Rybin  <rybin@adacore.com>

        * gnat_ugn.texi: Update the section "The GNAT Driver and Project
        Files" with the new tool and package names.
        Reformatting to suppress most of the warnings for line too long
        Document the new section "Project Search Path:" in the output of
        gnatls -v.
        Add gnatmetric section

2004-12-07  Vincent Celier  <celier@adacore.com>

        * vms_data.ads: Correct GNAT METRIC qualifiers: -I-, -Idir and
        -gnatec= are not direct switches of gnatmetric. Changed -eis to -eps
        and -eit to -ept. Added qualifier
        /ELEMENT_METRICS=CONSTRUCT_NESTING_MAX for new switch -ec.

2004-11-27  Andreas Schwab  <schwab@suse.de>

        * Make-lang.in (ada/trans.o): Depend on $(EXPR_H).

2004-11-25  Arnaud Charlet  <charlet@adacore.com>

        * g-socthi-mingw.ads, g-socthi-vms.ads: Remove C_Read and C_Write from
        internal implementation unit GNAT.Sockets.Thin,
        as their usage for sockets is non-portable (using the read and write
        functions from the system runtime library is fine on UNIX but won't
        work under Windows).

        * mingw32.h: Update copyright notice.

2004-11-25  Arnaud Charlet  <charlet@adacore.com>

        * ada-tree.h: Minor reformatting of previous change to avoid lines
        longer than 79 characters.

2004-11-25  Olivier Hainque  <hainque@adacore.com>

        * tb-gcc.c: GCC infrastructure based implementation of
        __gnat_backtrace.

2004-11-24  Steven Bosscher  <stevenb@suse.de>

        * misc.c (gnat_post_options): Don't clear
        flag_inline_functions.

2004-11-22  Andrew Pinski  <pinskia@physics.uc.edu>

        PR ada/17986
        * ada-tree.h (lang_tree_node): Set chain_next to be the chain of the
        tree.

2004-11-21  Andreas Jaeger  <aj@suse.de>

        * stylesw.adb: Change Style_Check_Subprogram_Order to
        Style_Check_Order_Subprograms.

2004-11-18  Arnaud Charlet  <charlet@adacore.com>

        * adaint.h, adaint.c
        (__gnat_portable_spawn): Fix cast of spawnvp third parameter
        to avoid warnings.
        Add also a cast to kill another warning.
        (win32_no_block_spawn): Initialize CreateProcess's dwCreationFlags
        parameter with the priority class of the parent process instead of
        always using the NORMAL_PRIORITY_CLASS.
        (__gnat_dup): New function.
        (__gnat_dup2): New function.
        (__gnat_is_symbolic_link): Enable the effective body of this
        function when __APPLE__ is defined.

        * g-os_lib.ads, g-os_lib.adb (Spawn): Two new procedures.
        Update comments.

2004-11-18  Olivier Hainque  <hainque@adacore.com>

        * a-exexpr.adb (Others_Value, All_Others_Value): New variables, the
        address of which may be used to represent "others" and "all others"
        choices in exception tables, instead of the current harcoded
        (void *)0 and (void *)1.
        (Setup_Exception): Do nothing in the GNAT SJLJ case.

        * gigi.h (others_decl, all_others_decl): New decls representing the
        new Others_Value and All_Others_Value objects.
        (struct attrib): Rename "arg" component as "args", since GCC expects a
        list of arguments in there.

        * raise.c (GNAT_OTHERS, GNAT_ALL_OTHERS): Are now the address of the
        corresponding objects exported by a-exexpr, instead of hardcoded dummy
        addresses.

        * trans.c (Exception_Handler_to_gnu_zcx): Use the address of
        others_decl and all_others_decl instead of hardcoded dummy addresses
        to represent "others" and "all others" choices, which is cleaner and
        more flexible with respect to the possible eh pointer encoding policies.

        * utils.c (init_gigi_decls): Initialize others_decl and all_others_decl.
        (process_attributes): Account for the naming change of the "args"
        attribute list entry component.

        * decl.c (build_attr_list): Rename into prepend_attributes to allow
        cumulating attributes for different entities into a single list.
        (gnat_to_gnu_entity): Use prepend_attributes to build the list of
        attributes for the current entity and propagate first subtype
        attributes to other subtypes.
        <E_Procedure>: Attribute arguments are attr->args and not
        attr->arg any more.
        (build_attr_list): Ditto. Make attr->args a TREE_LIST when there is an
        argument provided, as this is what GCC expects. Use NULL_TREE instead
        of 0 for trees.

2004-11-18  Robert Dewar  <dewar@adacore.com>

        * a-stmaco.ads, exp_util.ads, exp_util.adb, i-cpp.ads, i-cpp.adb:
        Minor reformatting througout (including new function specs)
        Add ??? comments asking for clarification.

2004-11-18  Thomas Quinot  <quinot@adacore.com>

        * butil.ads, butil.adb, bindgen.adb (Get_Unit_Name_String): Remove
        incomplete duplicate implementation of this subprogram from butil.

2004-11-18  Thomas Quinot  <quinot@adacore.com>

        * exp_dist.adb (Build_RPC_Receiver_Body): New subprogram. This
        procedures factors the common processing for building an RPC receiver
        for an RCI package or an RACW type.
        Stylistic cleanup: change '/= Empty' to 'Present ()'; move body of
        Build_Remote_Subprogram_Proxy_Type into proper alphabetical order.
        (Get_PCS_Name): New subprogram. Returns the name of the PCS currently
        in use.
        (Specific_Add_RACW_Features): New subprogram. PCS-specific part of
        Add_RACW_Features.
        (Specific_Add_RAST_Features): New subprogram. PCS-specific part of
        Add_RAST_Features.
        (Assign_Subprogram_Identifier): New subprogram. Provision for assigning
        distribution subprogram identifiers that are either subprogram numbers
        or strings.
        (Get_Subprogram_Ids): New subprogram. Retrieve both the numeric and
        string distribution identifiers assigned to a given subprogram.
        (Get_Subprogram_Id): Reimplement in terms of Get_Subprogram_Ids.
        (Add_RAS_Dereference_TSS): Add comments.
        (Build_General_Calling_Stubs): Note that the RACW_Type formal parameter
        is not referenced yet because it will be used by the PolyORB DSA
        implementation.
        (Insert_Partition_Check): Remove fossile code.
        (First_RCI_Subprogram_Id): Document this constant.
        (Add_RAS_Access_TSS): Correct the setting of the Etype of the
        RAS_Access TSS.
        (Get_Pkg_Name_String): Remove subprogram. Usage occurrences are
        replaced with calls to Get_Library_Unit_Name_String. Previously there
        were several instances of the same code in different locations in the
        compiler; this checkin completes the replacement of all of these
        instances with calls to a common subprogram.
        Minor reformatting.

        * sem_dist.adb: Remove comment noting that RPC receiver generation
        should be disabled for RACWs that implement RASs.
        (Process_Partition_Id): Use new subprogram Get_Library_Unit_Name_String.

        * sem_util.ads, sem_util.adb (Has_Stream): New function
        (Get_Library_Unit_Name_String): New subprogram to retrieve the fully
        qualified name of a library unit into the name buffer.
        (Note_Possible_Modification): Generate a reference only
        if the context comes from source.

        * snames.ads (PCS_Names): New subtype corresponding to names of
        supported implementations of the Partition Communication Subsystem
        (PCS) (i.e. the runtime library support modules for the distributed
        systems annex).

2004-11-18  Robert Dewar  <dewar@adacore.com>
            Ed Schonberg  <schonberg@adacore.com>

        * einfo.ads, einfo.adb: Remove Is_Psected flag, no longer used
        (Has_Rep_Pragma): New function
        (Has_Attribute_Definition_Clause): New function
        (Record_Rep_Pragma): Moved here from sem_ch13.adb
        (Get_Rep_Pragma): Remove junk kludge for Stream_Convert pragma

        * sem_ch13.ads, sem_ch13.adb (Record_Rep_Pragma): Moved to einfo.adb

        * exp_prag.adb: (Expand_Pragma_Common_Object): New procedure
        (Expand_Pragma_Psect_Object): New procedure
        These procedures contain the revised and cleaned up processing for
        these two pragmas. This processing was formerly in Sem_Prag, but
        is more appropriately moved here. The cleanup involves making sure
        that the pragmas are properly attached to the tree, and that no
        nodes are improperly shared.

        * sem_prag.adb: Move expansion of Common_Object and Psect_Object
        pragmas to Exp_Prag, which is more appropriate.
        Attach these two pragmas to the Rep_Item chain Use Rep_Item chain to
        check for duplicates Remove use of Is_Psected flag, no longer needed.
        Use new Make_String_Literal function with string.

        * exp_attr.adb (Expand_Fpt_Attribute): The floating-point attributes
        that are functions return universal values, that have to be converted
        to the context type.
        Use new Make_String_Literal function with string.
        (Get_Stream_Convert_Pragma): New function, replaces the use of
        Get_Rep_Pragma, which had to be kludged to work in this case.

        * freeze.adb: Use new Has_Rep_Pragma function

        * exp_intr.adb, exp_ch3.adb, sem_attr.adb: Use new Make_String_Literal
        function with string.
        Use new Has_Rep_Pragma function.

        * tbuild.ads, tbuild.adb (Make_String_Literal): New function, takes
        string argument.

2004-11-18  Robert Dewar  <dewar@adacore.com>

        * errout.ads, errout.adb: (First_Sloc): New function

        * par-ch5.adb (P_Condition): Check for redundant parens is now a style
        check (-gnatyx) instead of being included as a redundant construct
        warning.

        * sem_ch6.adb: Change name Style_Check_Subprogram_Order to
        Style_Check_Order_Subprograms.

        * style.ads, styleg.ads, styleg.adb, styleg-c.adb, stylesw.ads,
        stylesw.adb: Add Style_Check_Xtra_Parens

        * usage.adb: Add line for -gnatyx (check extra parens)

        * vms_data.ads: Add entry for STYLE_CHECKS=XTRA_PARENS => -gnatyx

2004-11-18  Ed Schonberg  <schonberg@adacore.com>
            Robert Dewar  <dewar@adacore.com>

        * exp_ch4.adb (Expand_N_Selected_Component): If the component is the
        discriminant of a constrained subtype, analyze the copy of the
        corresponding constraint, because in some cases it may be only
        partially analyzed.
        Removes long-lived ??? comments.

        * exp_ch7.adb (Establish_Transient_Scope): Remove complex code that
        handled controlled or secondary-stack expressions within the
        iteration_scheme of a loop.

        * sem_ch5.adb (Analyze_Iteration_Scheme): Build a block to evaluate
        bounds that may contain functions calls, to prevent memory leaks when
        the bound contains a call to a function that uses the secondary stack.
        (Check_Complex_Bounds): Subsidiary of Analyze_Iteration_Scheme, to
        generate temporaries for loop bounds that might contain function calls
        that require secondary stack and/or finalization actions.

        * sem_ch4.adb (Analyze_Indexed_Component_Form): If the prefix is a
        selected component and the selector is overloadable (not just a
        function) treat as function call, Analyze_Call will disambiguate if
        necessary.
        (Analyze_Selected_Component): Do not generate an actual subtype for the
        selected component if expansion is disabled. The actual subtype is only
        needed for constraint checks.
        (Analyze_Allocator): If restriction No_Streams is set, then do
        not permit objects to be declared of a stream type, or of a
        composite type containing a stream.

        * restrict.ads: Remove the a-stream entry from Unit_Array, since
        No_Streams no longer prohibits with'ing this package.

        * sem_ch3.adb (Build_Derived_Record_Type): If the parent type has
        discriminants, but the parent base has unknown discriminants, there is
        no discriminant constraint to inherit. Such a discrepancy can arise
        when the actual for a formal type with unknown discriminants is a
        similar private type whose full view has discriminants.
        (Analyze_Object_Declaration): If restriction No_Streams is set, then
        do not permit objects to be declared of a stream type, or of a
        composite type containing a stream.

2004-11-18  Ed Schonberg  <schonberg@adacore.com>

        * exp_dbug.ads: Update documentation to reflect simpler encoding for
        protected operations.

        * exp_ch9.adb (Build_Selected_Name): Do not include "PT" suffix in
        generated name, it complicates decoding in gdb and hinders debugging
        of protected operations.
        (Build_Barrier_Function_Specification): Set the Needs_Debug_Info
        flag for the protected entry barrier function.
        (Build_Protected_Entry_Specification): Set the Needs_Debug_Info
        flag for the protected entry function.

2004-11-18  Nicolas Setton  <setton@adacore.com>

        * expect.c: Define __unix__ when __APPLE__ is defined.

        * Makefile.in: Inform the value of the variable GMEM_LIB in the
        Darwin-specific section.

        * lang-specs.h: Change the placement of the %1 marker.
        Works around the fact that gcc adds -fPIC by default under Darwin.

2004-11-18  Ed Schonberg  <schonberg@adacore.com>

        * exp_pakd.adb (Convert_To_PAT_Type): After replacing the original
        type of the object with the packed array type, set the Analyzed flag
        on the object if it is an entity or simple indexed component, to avoid
        spurious type errors.

2004-11-18  Gary Dismukes  <dismukes@adacore.com>

        * gnat1drv.adb, gnatbind.adb, gnatchop.adb, gnatfind.adb, gnatlink.adb,
        gnatls.adb, gnatxref.adb, gprep.adb: Output the copyright message on a
        separate line from the version message.

2004-11-18  Ed Falis  <falis@adacore.com>

        * init.c (__gnat_map_signal): map SIGSEGV to Storage_Error for AE653
        vthreads.
        (init_float): Eliminate initialization of floating point status for
        AE653. The instructions have no effect for vThreads.

2004-11-18  Vincent Celier  <celier@adacore.com>

        * make.adb (Gnatmake): Invoke gnatlink with -shared-libgcc when
        gnatbind is invoked with -shared.

2004-11-18  Jose Ruiz  <ruiz@adacore.com>

        * s-tposen.adb (Lock_Entry): Remove the code for raising Program_Error
        for Detect_Blocking which is redundant with the check done within the
        procedure Protected_Single_Entry_Call.
        (Lock_Read_Only_Entry): Remove the code for raising Program_Error for
        Detect_Blocking which is redundant with the check done within the
        procedure Protected_Single_Entry_Call.

2004-11-18  Vincent Celier  <celier@adacore.com>

        * makegpr.adb (Compile): Put the compiling switches (in package
        Compiler and on the command line) immediately after "-c", instead of
        at the end of the command line invocation of the compiler, when
        compiling a non-Ada file.
        (Build_Global_Archive): When there is no need to rebuild the archive,
        set Global_Archive_Exists, so that the archive is passed to the linker
        if one is needed.

2004-11-18  Robert Dewar  <dewar@adacore.com>
            Sergey Rybin  <rybin@adacore.com>

        * gnat_ugn.texi:
        Remove extra paren check from list of checks for redundant constructs
        Add documentation of new -gnatyx style check (check extra parens)
        Remove paragraph about gnatelim debug options.

        * gnat_rm.texi: Document that Ada.Streams now forbids creating stream
        objects rather than forbidding dependencies on the package Ada.Streams.

        * sinfo.ads: Add ??? note that we should document pragmas passed to
        back end.

        * g-expect.ads: Fix a few typos in the comments.

2004-11-09  Joseph S. Myers  <joseph@codesourcery.com>

        * misc.c (gnat_handle_option): Use %< and %> for quoting in
        warning message.

2004-11-08  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * a-numaux-x86.adb (Tan): Fix fdivp syntax.

2004-11-07  Andreas Schwab  <schwab@suse.de>

        * Makefile.in (install-gnatlib): Remove spurious hyphen.

2004-11-02  Andrew Pinski  <pinskia@physics.uc.edu>

        PR ada/18228
        * Makefile.in (darwin): Set soext to .dylib.

2004-10-26  Vincent Celier  <celier@gnat.com>
            Thomas Quinot   <quinot@act-europe.fr>

        * g-socthi-vms.adb, g-socthi-mingw.adb, g-socthi-vxworks.ads:
        (C_Writev): Change MSG_Forced_Flags to Constants.MSG_Forced_Flags as
        there is no use of GNAT.Sockets.Constants.
        Remove remaining pragma Import for C_Write
        Remove C_Read and C_Write from internal implementation unit
        GNAT.Sockets.Thin, as their usage for sockets is non-portable (using
        the read and write functions from the system runtime library is fine
        on UNIX but won't work under Windows).

        * g-socket.adb: (Abort_Selector): Use C_Send instead of C_Write.
        (Check_Selector): Use C_Recv instead of C_Read.
        Selectors are the GNAT.Sockets abstraction to perform a select()
        call on a set of descriptors. To allow abortion of an ongoing
        select operation, some data is written to a dedicated socket that
        is always monitored.
        Under Windows, the write and read library functions cannot operate
        on sockets, so we need to use send and recv instead, which is portable
        across all supported platforms.

        * g-socthi.ads: Remove C_Read and C_Write from internal implementation
        unit GNAT.Sockets.Thin, as their usage for sockets is non-portable
        (using the read and write functions from the system runtime library is
        fine on UNIX but won't work under Windows).

2004-10-26  Nicolas Setton  <setton@act-europe.fr>

        * mlib-tgt-darwin.adb: New file.

        * mlib-tgt-tru64.adb, mlib-tgt-aix.adb, mlib-tgt-irix.adb,
        mlib-tgt-hpux.adb, mlib-tgt-linux.adb, mlib-tgt-solaris.adb,
        mlib-tgt-vms-alpha.adb, mlib-tgt-vms-ia64.adb,
        mlib-tgt-mingw.adb, mlib-tgt-vxworks.adb (Archive_Indexer_Options): New
        subprogram body.

        * Makefile.in: Add support for building shared libraries under Darwin.
        (EXTRA_GNATRTL_NONTASKING_OBJS, ppc-vxworks): Add s-vxwexc.o, containing
        the low level EH init subprogram to be called from __gnat_initialize.

        * mlib-tgt.ads, mlib-tgt.adb (Archive_Indexer_Options): New subprogram,
        indicates which options to pass to the archive indexer.

        * mlib-utl.adb: Add support for calling ranlib with additional
        options. This is needed for instance under Mac OS X.
        (Ranlib_Options): New global variable, used to store the potential
        options to pass to ranlib.
        (Ar): Use Ranlib_Options when spawning ranlib.
        (Initialize): Set the value of ranlib option.

2004-10-26  Olivier Hainque  <hainque@act-europe.fr>

        * s-parame-linux.adb (Minimum_Stack_Size): Adjust to return 12K
        instead of 8K, to reflect the real potential needs for stack-checking
        in the ZCX case.

2004-10-26  Pascal Obry  <obry@gnat.com>

        * s-parame-mingw.adb (Default_Stack_Size): Add some comments.

        * s-taprop-mingw.adb (Create_Task): Set initial stack size to 1024. On
        Windows only the initial thread stack size can be set so it is good to
        start we a low stack size.
        The OS will adjust the size as needed.

2004-10-26  Olivier Hainque  <hainque@act-europe.fr>
            Nicolas Setton  <setton@act-europe.fr>

        * expect.c, adaint.c, link.c, sysdep.c (unix sections): Guard with
        "__unix__" instead of "unix".
        The latter is implicitly defined by gcc3.2 but not by gcc >= 3.4, so the
        sections were just mistakenly ignored. The former is
        implicitely defined by gcc2.8, gcc3.2 and gcc3.4.
        Update #ifdef preprocessor macro to detect the symbol __hpux__ instead
        of hpux. This prevents an unwanted definition of the symbol
        convert_addresses in adaint.o.

2004-10-26  Gary Dismukes  <dismukes@gnat.com>

        * a-exexpr.adb (Setup_Key): Change initial value to 16#DEAD#, for
        compatibility with type Unwind_Word on 16-bit targets such as AAMP.

2004-10-26  Cyrille Comar  <comar@act-europe.fr>

        * a-filico.ads, a-filico.adb: fix incorrect header.

2004-10-26  Javier Miranda  <miranda@gnat.com>

        * a-ststio.ads: Fix typo in identifier

2004-10-26  Thomas Quinot  <quinot@act-europe.fr>

        * sem_ch4.adb: Minor reformatting.

2004-10-26  Ed Schonberg  <schonberg@gnat.com>

        * checks.adb (Expr_Known_Valid): If floating-point validity checks are
        enabled, check the result of unary and binary operations when the
        expression is the right-hand side of an assignment.

2004-10-26  Vincent Celier  <celier@gnat.com>

        * clean.adb (Delete): Do not output warnings when in quiet output and
        not in verbose mode.
        (Force_Deletions): New Boolean flag, defaulted to False
        (Delete): Only delete a file if it is writable, and when
        Force_Deletions is True.
        (Parse_Cmd_Line): New switch -f: set Force_Deletions to True
        (Usage): Line for new switch -f
        (Clean_Directory): Use GNAT.OS_Lib.Set_Writable instead of rolling our
        own.

2004-10-26  Eric Botcazou  <ebotcazou@act-europe.fr>

        * decl.c (gnat_to_gnu_field): Use the type of the inner object for a
        JM type only if its size matches that of the wrapper.  When a size is
        prescribed and the field is not aliased, remove the wrapper of a JM
        type only if the size is not greater than that of the packed array.
        (gnat_to_gnu_entity): Change the extension of packed array wrappers
        from LJM to JM.

2004-10-26  Geert Bosch  <bosch@gnat.com>

        * eval_fat.adb (Eps_Model,Eps_Denorm): Remove, no longer used.
        (Succ): Re-implement using Scaling, Exponent and Ceiling attributes.
        (Pred): Implement in terms of Succ.

2004-10-26  Ed Schonberg  <schonberg@gnat.com>

        * exp_aggr.adb (Safe_Component): An aggregate component that is an
        unchecked conversion is safe for in-place use if the expression of the
        conversion is safe.
        (Expand_Array_Aggregate): An aggregate that initializes an allocator may
        be expandable in place even if the aggregate does not come from source.
        (Convert_Array_Aggr_In_Allocator): New procedure to initialize the
        designated object of an allocator in place, rather than building it
        first on the stack. The previous scheme forces a full copy of the array,
        and may be altogether unsusable if the size of the array is too large
        for stack allocation.

2004-10-26  Robert Dewar  <dewar@gnat.com>

        * exp_ch4.adb (Expand_N_Op_Eq): Make sure we expand a loop for array
        compares if the component is atomic.

        * exp_ch5.adb (Expand_Assign_Array): Make sure we expand a loop for
        array assignment if the component type is atomic.

2004-10-26  Ed Schonberg  <schonberg@gnat.com>
            Eric Botcazou  <ebotcazou@act-europe.fr>

        * exp_ch6.adb (Expand_Actuals): If the actual for an in-out parameter
        is aliased and is a by_reference type, do not pass by copy.
        (Expand_N_Function_Call) <Rhs_Of_Assign_Or_Decl>: New function to
        detect whether the call is in the right side of an assignment or
        the expression of an object declaration.  Recurse on component
        association within aggregates.
        Call it in the condition that determines whether the temporary is
        necessary for correct stack-checking.

2004-10-26  Thomas Quinot  <quinot@act-europe.fr>

        * exp_dist.adb (Build_General_Calling_Stubs): New formal parameter
        RACW_Type, used in the PolyORB version.
        Rename RCI_Info to RCI_Locator, for consistency between the PolyORB
        version and the GARLIC version.

        * snames.ads, snames.adb, s-parint.ads, s-parint.adb:
        Rename RCI_Info to RCI_Locator for better consistency between the
        GARLIC and PolyORB versions of the distributed systems annex.
        (DSA_Implementation_Name): This enumeration lists the possible
        implementations of the Partition Communication Subsystem for the
        Distributed Systems Annex (DSA). The three available implementations
        are the dummy stub implementation (No_DSA), and two versions based on
        two different distribution runtime libraries: GARLIC and PolyORB. Both
        the GARLIC PCS and the PolyORB PCS are part of the GLADE distribution
        technology.
        Change the literal GLADE_DSA to GARLIC_DSA to accurately describe
        that organization.

        * rtsfind.ads: Rename RCI_Info to RCI_Locator for better consistency
        between the GARLIC and PolyORB versions of the distributed systems
        annex.
        Remove RE_Unbounded_Reclaim_Pool since it is unused.

2004-10-26  Gary Dismukes  <dismukes@gnat.com>

        * gnat1drv.adb: Suppress calling the back end when
        Frontend_Layout_On_Target is true.

2004-10-26  Thomas Quinot  <quinot@act-europe.fr>

        * g-os_lib.ads, g-os_lib.adb (Set_Executable, Set_Writable,
        Set_Read_Only): New subprograms.
        These new routines allow the user to set or unset the Owner execute
        and Owner write permission flags on a file.

        * makegpr.adb, mlib.adb, mlib-prj.adb: Use
        GNAT.OS_Lib.Set_Executable instead of rolling our own.

2004-10-26  Matthew Gingell  <gingell@gnat.com>

        * i-cpp.ads, i-cpp.adb: Change layout of VTable for new C++ ABI.

2004-10-26  Pascal Obry  <obry@gnat.com>

        * init.c (__gnat_error_handler) [Win32]: Instead of trying to read the
        memory before the faulting page we properly test the process read
        access for this address using appropriate Win32 routine.
        (HPUX sections): guard with "__hpux__" instead of "hpux".

2004-10-26  Robert Dewar  <dewar@gnat.com>

        * lib-xref.adb (Generate_Reference): Don't complain about reference to
        entry parameter if pragma Unreferenced set, since we do not properly
        handle the case of multiple parameters.

2004-10-26  Vincent Celier  <celier@gnat.com>

        * prj-env.adb: (Contains_ALI_Files): New Boolean function
        (Ada_Objects_Path.Add): For a library project, add to the object path
        the library directory only if there is no object directory or if the
        library directory contains ALI files.
        (Set_Ada_Paths.Add.Recursive_Add): Ditto

2004-10-26  Vincent Celier  <celier@gnat.com>

        * prj-nmsc.adb (Language_Independent_Check): Do not forbid virtual
        extension of library projects.

        * prj-part.adb: If env var ADA_PROJECT_PATH is not defined, project
        path defaults to ".:<prefix>/lib/gnat".
        (Parse): For an extending all project, allow direct import of a project
        that is virtually extended.

        * prj-proc.adb (Imported_Or_Extended_Project_From): If a project with
        the specified name is directly imported, return its ID. Otherwise, if
        an extension of this project is imported, return the ID of the
        extension.

2004-10-26  Robert Dewar  <dewar@gnat.com>

        * s-arit64.adb: (Le3): New function, used by Scaled_Divide
        (Sub3): New procedure, used by Scaled_Divide
        (Scaled_Divide): Substantial rewrite, avoid duplicated code, and also
        correct more than one instance of failure to propagate carries
        correctly.
        (Double_Divide): Handle overflow case of largest negative number
        divided by minus one.

        * s-arit64.ads (Double_Divide): Document that overflow can occur in
        the case of a quotient value out of range.
        Fix comments.

2004-10-26  Robert Dewar  <dewar@gnat.com>

        * s-bitops.adb (Bit_Eq): Remove redundant check.

        * s-bitops.ads: Minor comment updates
        Change some occurrences of Address to System.Address

        * s-carsi8.ads: Fix minor cut-and-paste error in comments

2004-10-26  Ed Schonberg  <schonberg@gnat.com>

        * sem_attr.adb (Resolve_Attribute, case 'Access): Apply proper
        accessibility check to prefix that is a protected operation.

2004-10-26  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch10.adb (Optional_Subunit): If file of expected subunit is
        empty, post message on stub.

2004-10-26  Ed Schonberg  <schonberg@gnat.com>
            Javier Miranda  <miranda@gnat.com>

        * sem_ch12.adb (In_Main_Context): Predicate to determine whether the
        current instance appears within a unit that is directly in the context
        of the main unit.
        Used to determine whether the body of the instance should be analyzed
        immediately after its spec, to make its subprogram bodies available
        for front-end inlining.
        (Analyze_Formal_Array_Type): Cleanup condition that checks that range
        constraint is not allowed on the component type (AARM 12.5.3(3))

2004-10-26  Cyrille Comar  <comar@act-europe.fr>

        * sem_ch13.adb (Analyze_Attribute_Definition_Clause, case
        'Storage_Pool): enhance, document & limit detection of non-sharable
        internal pools.

        * impunit.adb: Make System.Pool_Global and System.Pool_Local visible.

        * s-pooglo.ads: Add more documentation now that this pool is properly
        documented.

2004-10-26  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch3.adb (Complete_Private_Subtype): If the full view is a task
        or protected type with discriminants, do not constrain the
        corresponding record type if the subtype declaration has no
        discriminant constraints. This can be the case in source code, or in
        the subtype declaration created to rename an actual type within an
        instantiation.

2004-10-26  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch6.adb (Analyze_Subprogram_Body): If body is a subunit for a
        different kind of stub (possibly wrong name for file), do not check
        for conformance.
        (Uses_Secondary_Stack): New subsidiary to Build_Body_To_Inline. If body
        includes call to some function that returns an unconstrained type, do
        not inline.

2004-10-26  Ed Schonberg  <schonberg@gnat.com>

        * sem_elab.adb (Check_Elab_Call): Do not check a call that does not
        appear in the code for the main unit. Dependencies among units in the
        context of the main unit are established when those other units are
        compiled. Otherwise spurious elaboration constraints can generate
        incorrect elaboration circularities.

2004-10-26  Thomas Quinot  <quinot@act-europe.fr>
            Ed Schonberg   <schonberg@gnat.com>

        * sem_util.adb (Is_Aliased_View): Defend against the case where this
        subprogram is called with a parameter that is not an object name. This
        situation arises for some cases of illegal code, which is diagnosed
        later, and in this case it is wrong to call Is_Aliased, as that might
        cause a compiler crash.
        (Explain_Limited_Type): Refine previous fix to include
        inherited components of derived types, to provide complete information.

        * exp_ch9.adb (Set_Privals): Set the Ekind of the actual object that
        is the prival for a protected object.
        It is necessary to mark this entity as a variable, in addition to
        flagging it as Aliased, because Sem_Util.Is_Aliased_View has been
        modified to avoid checking the Aliased flag on entities that are not
        objects. (Checking that flag for non-objects is erroneous and could
        lead to a compiler crash).

2004-10-26  Robert Dewar  <dewar@gnat.com>

        * s-fatgen.adb (Pred): Fix redundant test for X > 0.0, since if
        X_Frac = 0.5, then we know that the number X must be positive.
        (Succ): Remove the same redundant test, and also fix the primary test
        to test for X_Frac = -0.5 (used to be 0.5) which is clearly wrong.
        Minor reformatting
        (Decompose): Add fuller comments to spec

2004-10-26  Pascal Obry  <obry@gnat.com>

        * tracebak.c (IS_BAD_PTR): Use IsBadCodePtr on Win32 to check for ptr
        validity (process must have read access). Set to 0 in all other cases.
        (STOP_FRAME): Now check for ptr validity to avoid a segmentation
        violation on Win32.
        (VALID_STACK_FRAME): Check for ptr validity on Win32 to avoid a
        segmentation violation.

2004-10-26  Eric Botcazou  <ebotcazou@act-europe.fr>

        * trans.c (call_to_gnu): For an (in-)out parameter passed by reference
        whose type is a constructed subtype of an aliased object with an
        unconstrained nominal subtype, convert the actual to the constructed
        subtype before taking its address.

2004-10-26  Vincent Celier  <celier@gnat.com>

        * a-dirval.ads, a-dirval.adb, a-dirval-vms.adb, a-dirval-mingw.adb
        (Is_Path_Name_Case_Sensitive): New function

        * a-direct.adb (To_Lower_If_Case_Insensitive): New procedure
        (Base_Name, Simple_Name, Current_Directory, Compose,
        Containing_Directory, Full_Name): Call To_Lower_If_Case_Insensitive on
        the result.

2004-10-26  Cyrille Comar    <comar@act-europe.fr>
            Vasiliy Fofanov  <fofanov@act-europe.fr>
            Vincent Celier   <celier@gnat.com>

        * gnat_ugn.texi: Generalize "finding memory problems" section into a
        "memory management issues" section and document some of the useful
        memory pools provided as part of the GNAT library.
        Remove "virtual" from declaration of A::method2 in
        the simple example of Ada/C++ mixed system.
        Library Projects may be virtually extended: their virtual extensions
        are not Library Projects.
        Added section on extending project hierarchies.

2004-10-19  Aaron W. LaFramboise  <aaronavay62@aaronwl.com>

        * adaint.c (__gnat_get_libraries_from_registry): Cast value
        to LPBYTE.
        (__gnat_portable_spawn): Remove const.

        * mingw32.h (MAXPATHLEN): Check for previous definition.

2004-10-17  Matthias Klose  <doko@debian.org>

        * gnatvsn.ads: Set gnat library version to 4.0.

2004-10-05  Vincent Celier  <celier@gnat.com>

        * mlib-tgt.ads: (Build_Dynamic_Library): New parameter Options_2

2004-10-04  Laurent Guerby  <laurent@guerby.net>

        PR ada/15156
        * Makefile.in: Define and use RANLIB_FLAGS.

2004-10-04  Pascal Obry  <obry@gnat.com>

        * tracebak.c: Always set LOWEST_ADDR to 0 on Win32 (as done on all
        other x86 platforms).

2004-10-04  Olivier Hainque  <hainque@act-europe.fr>

        * s-tassta.adb (Task_Wrapper): Make it Convention C, which makes sense
        in general and triggers stack alignment adjustment for thread entry
        points on targets where this is necessary.

2004-10-04  Bernard Banner  <banner@gnat.com>

        PR ada/13897
        * Makefile.in: Add section for powerpc linux
        Add variant i-vxwork-x86.ads

        * i-vxwork-x86.ads, system-linux-ppc.ads: New files.

2004-10-04  Olivier Hainque  <hainque@act-europe.fr>

        * init.c (__gnat_initialize): Call an Ada subprogram to perform the
        table registration calls when need be. Ensures no reference to the crt
        ctors symbol are issued in the SJLJ case, which avoids possible
        undefined symbol errors in the case of modules to be statically linked
        with the kernel.

2004-10-04  Javier Miranda  <miranda@gnat.com>

        * sem_ch4.adb (Try_Object_Operation): Reformat the code to expand
        in-line the code corresponding to subprogram Analyze_Actuals. In
        addition, analyze the actuals only in case of subprogram call.

2004-10-04  Ed Falis  <falis@gnat.com>

        * s-vxwork-x86.ads: (FP_CONTEXT): Defined to be correct size

2004-10-04  Sergey Rybin  <rybin@act-europe.fr>

        * g-dirope.ads (Base_Name): Clarify the meaning of the Suffix parameter
        in the documentation.

2004-10-04  Robert Dewar  <dewar@gnat.com>

        * sem_ch5.adb (Unblocked_Exit_Count): Now used for blocks as well as
        IF and CASE.
        (Analyze_Block_Statement): Add circuitry to detect following dead code
        (Check_Unreachable_Code): Handle case of block exit

2004-10-04  Robert Dewar  <dewar@gnat.com>

        * g-spipat.adb: (XMatch): Avoid warning for Logic_Error call
        (XMatchD): Avoid warning for Logic_Error call

2004-10-04  Robert Dewar  <dewar@gnat.com>

        * exp_ch4.adb (Is_Procedure_Actual): Correct so that this does not
        consider expressions buried within a procedure actual to be an actual.
        This caused some blowups with uses of packed slices within a procedure
        actual.

2004-10-04  Robert Dewar  <dewar@gnat.com>

        * exp_ch3.adb (Needs_Simple_Initialization): Modular packed arrays no
        longer need to be initialized to zero.
        (Get_Simple_Init_Val): Modular packed arrays no longer need to be
        initialized to zero.

        * checks.adb (Expr_Known_Valid): Packed arrays are now always
        considered valid, even if the representation is modular. That's correct
        now that we no longer initialize packed modular arrays to zero.

        * exp_dbug.ads: Clarify documentation on handling of PAD and JM
        suffixes. These are now documented as the only cases in which the
        debugger ignores outer records.
        Previously, the spec allowed arbitrary suffixes for this purpose.
        Change name of LJM to JM for packed array pad records
        Create separate section on packed array handling, and add a whole new
        set of comments to this section describing the situation with packed
        modular types and justification requirements depending on endianness.

2004-10-04  Robert Dewar  <dewar@gnat.com>

        * a-except.adb: Add a comment for last change

        * einfo.ads: Minor spelling correction in comment

        * exp_pakd.adb, gnatdll.adb, prj-attr.ads: Minor reformatting

        * sem_ch11.adb: Fix a case of using | instead of \ for continuation
        messages.

        * sem_util.ads: Minor comment update

2004-10-04  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch6.adb (Analyze_Subprogram_Body): Do not treat Inline as
        Inline_Always when in Configurable_Run_Time mode.

        * sem_prag.adb (Process_Convention): If entity is an inherited
        subprogram, apply convention to parent subprogram if in same scope.
        (Analyze_Pragma, case Inline): Do not treat Inline as Inline_Always
        when in Configurable_Run_Time mode.

2004-10-04  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch3.adb (Build_Derived_Record_Type): Set First/Last entity of
        class_wide type after component list has been inherited.

2004-10-04  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch12.adb (Check_Generic_Actuals): New predicate
        Denotes_Previous_Actual, to handle properly the case of a private
        actual that is also the component type of a subsequent array actual.
        The visibility status of the first actual is not affected when the
        second is installed.
        (Process_Nested_Formal): Subsidiary of Instantiate_Formal_Package, to
        make fully recursive the treatment of formals of packages declared
        with a box.
        (Restore_Nested_Formal): Subsidiary of Restore_Private_Views, to undo
        the above on exit from an instantiation.
        (Denotes_Formal_Package): When called from Restore_Private_Views, ignore
        current instantiation which is now complete.
        (Analyze_Package_Instantiation): No instantiated body is needed if the
        main unit is generic. Efficient, and avoid anomalies when a instance
        appears in a package accessed through rtsfind.

2004-10-04  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch6.adb (Expand_N_Function_Call): If stack checking is enabled,
        do not generate a declaration for a temporary if the call is part of a
        library-level instantiation.

2004-10-04  Ed Schonberg  <schonberg@gnat.com>

        * sem_util.adb (Explain_Limited_Type): Ignore internal components when
        searching for a limited component to flag.

        * exp_attr.adb (Freeze_Stream_Subprogram): Subsidiary procedure to
        expansion of Input, to account for the fact that the implicit call
        generated by the attribute reference must freeze the user-defined
        stream subprogram. This is only relevant to 'Input, because it can
        appear in an object declaration, prior to the body of the subprogram.

        * sem_ch13.adb (Rep_Item_Too_Late): Make the error non-serious, so that
        expansion can proceed and further errors uncovered.
        (Minor clean up): Fix cases of using | instead of \ for continuation
        messages.

2004-10-04  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * cuintp.c, decl.c, utils2.c: Use gcc_assert and gcc_unreachable.

        * trans.c (assoc_to_constructor): Fix unused var warning if no checking.
        (gnat_gimplify_expr, case ADDR_EXPR): Fix error in last change.
        Use gcc_assert and gcc_unreachable.

        * decl.c (gnat_to_gnu_entity, case object): Check and process a
        specified alignment before validating size.
        (gnat_to_gnu_entity) <E_Modular_Integer_Subtype>: Create a
        stripped-down declaration for the type of the inner field when making
        a JM type.

        * utils.c (finish_record_type): Do not compute the size in units
        incrementally. Instead compute it once for the rep clause case.
        Use gcc_assert and gcc_unreachable.

2004-10-04  Vincent Celier  <celier@gnat.com>

        * a-dirval-mingw.adb (Invalid_Character): Add '\' as invalid character
        in file name.
        (Is_Valid_Path_Name): Take '/' as a directory separator.

2004-10-04  Vincent Celier  <celier@gnat.com>

        * prj-part.adb (Parse_Single_Project): Call Is_Extending_All
        (Extended_Project) only if Extended_Project is defined, to avoid
        assertion error.
        (Post_Parse_Context_Clause): Always call Set_Path_Name_Of with a
        resolved path.
        (Parse_Single_Project): Ditto.

        * prj-env.adb (Set_Ada_Paths.Add.Recursive_Add): Do not call
        Add_To_Project_Path for virtual projects.

2004-10-04  Vincent Celier  <celier@gnat.com>

        * mlib-tgt-tru64.adb, mlib-tgt-aix.adb, mlib-tgt-irix.adb,
        mlib-tgt-hpux.adb, mlib-tgt-linux.adb, mlib-tgt-solaris.adb,
        mlib-tgt-vms-alpha.adb, mlib-tgt-vms-ia64.adb, mlib-tgt-mingw.adb,
        mlib-tgt-vxworks.adb, mlib-tgt.adb (Build_Dynamic_Library): New
        parameter Options_2.

        * mlib-prj.ads, mlib-prj.adb (Build_Library): Call
        Build_Dynamic_Library with an empty Options_2.

        * mlib-utl.ads, mlib-utl.adb (Gcc): Parameter Options_2 has no
        default anymore.

        * makegpr.adb (Get_Imported_Directories.add): Remove trailing
        directory separator, if any.
        (Gprmake): Do not allow mains on the command line for library projects.
        Do not attempt to link when the project is a library project.
        (Library_Opts): New table to store Library_Options.
        (Build_Library): If Library_Options is specified, pass these options
        when building a shared library.

2004-10-04  Jose Ruiz  <ruiz@act-europe.fr>

        * s-tposen.adb (Service_Entry): The object must be always unlocked at
        the end of this procedure now that the unlock operation was inserted
        by the expander.

2004-10-04  Jose Ruiz  <ruiz@act-europe.fr>

        * targparm.ads, targparm.adb (Targparm_Tags): Add PAS value
        corresponding to the Preallocated_Stacks flags in System.
        (Get_Target_Parameters): Including the processing for
        Preallocated_Stacks.

        * system.ads, system-vxworks-x86.ads, system-darwin-ppc.ads,
        system-vms_64.ads, system-unixware.ads, system-linux-ia64.ads,
        system-freebsd-x86.ads, system-lynxos-ppc.ads, system-lynxos-x86.ads,
        system-linux-x86_64.ads, system-tru64.ads, system-aix.ads,
        system-vxworks-sparcv9.ads, system-vxworks-xscale.ads,
        system-solaris-x86.ads, system-irix-o32.ads, system-irix-n32.ads,
        system-hpux.ads, system-vxworks-m68k.ads, system-linux-x86.ads,
        system-vxworks-mips.ads, system-os2.ads, system-interix.ads,
        system-solaris-sparc.ads, system-solaris-sparcv9.ads, system-vms.ads,
        system-mingw.ads, system-vms-zcx.ads, system-vxworks-ppc.ads,
        system-vxworks-alpha.ads: Add the flag Preallocated_Stacks, that is
        used to signal whether the compiler creates the required stacks and
        descriptors for the different tasks (when True) or it is done by the
        underlying operating system at run time (when False).
        It is initially set to False in all targets.

        * exp_ch9.adb (Expand_N_Task_Type_Declaration): Create the task stack
        if it is supported by the target.
        (Make_Task_Create_Call): Pass the stack address if it has been
        previously created. Otherwise pass a Null_Address.

        * snames.adb: Add _stack.

        * snames.ads: Add Name_uStack. Required to allow the expander to
        statically allocated task stacks.

        * s-tarest.ads, s-tarest.adb (Create_Restricted_Task): Add
        Stack_Address argument.
        Check that its value is equal to Null_Address because this target does
        not support the static stack allocation.

2004-10-04  Thomas Quinot  <quinot@act-europe.fr>

        * usage.adb: Change "pragma inline" to "pragma Inline" in information
        and error messages

2004-10-04  Thomas Quinot  <quinot@act-europe.fr>

        * exp_dist.adb: Split declaration of asynchronous flag out of
        Add_RACW_Read_Attribute.
        Minor reformatting for better alignment with PolyORB version.
        Store the entity for the asynchronous flag of an RACW, rather than the
        expression, in the asynchronous flags table. This will allow this flag
        to be used in other subprograms beside Add_RACW_Read_Attribute.

2004-10-04  Thomas Quinot  <quinot@act-europe.fr>

        * g-socket.ads, g-socket.adb, g-socthi.adb, socket.c,
        g-soccon-aix.ads, g-soccon-irix.ads, g-soccon-hpux.ads,
        g-soccon-interix.ads, g-soccon-solaris.ads, g-soccon-vms.adb,
        g-soccon-mingw.ads, g-soccon-vxworks.ads, g-soccon-freebsd.ads,
        g-soccon.ads, g-soccon-unixware.ads, g-soccon-tru64.ads:  Add new
        sockets constant MSG_NOSIGNAL (Linux-specific).
        Add new sockets constant MSG_Forced_Flags, list of flags to be set on
        all Send operations.
        For Linux, set MSG_NOSIGNAL on all send operations to prevent them
        from trigerring SIGPIPE.
        Rename components to avoid clash with Ada 2005 possible reserved
        word 'interface'.
        (Check_Selector): When the select system call returns with an error
        condition, propagate Socket_Error to the caller.

2004-10-01  Jan Hubicka  <jh@suse.cz>

        * misc.c (gnat_expand_body): Update call of tree_rest_of_compilation.

2004-09-23  Robert Dewar  <dewar@gnat.com>

        PR ada/17540
        * sem_prag.adb (Process_Import_Or_Interface): Don't set Is_Public here,
        instead do this at freeze time (we won't do it if there is an address
        clause).
        Change "pragma inline" to "pragma Inline" in information and error
        messages.
        Minor reformatting.

        * freeze.adb (Check_Address_Clause): Remove previous change, not the
        right way of doing things after all.
        (Freeze_Entity): For object, set Is_Public for imported entities
        unless there is an address clause present.

2004-09-21  Olivier Hainque  <hainque@act-europe.fr>

        * decl.c (gnat_to_gnu_entity) <E_General_Access_Type>: Check for a
        dummy designated type via TYPE_MODE instead of COMPLETE_TYPE_P. This
        ensures proper handling of types with rep clauses, which might have
        their TYPE_SIZE set already.

2004-09-21  Robert Dewar  <dewar@gnat.com>

        * decl.c (gnat_to_gnu_type, case E_Modular_Integer_Type): Wrap modular
        packed array types in both little- and big-endian cases. This change
        ensures that we no longer count on the unused bits being initialized
        for such types (and in particular ensures that equality testing will
        only read the relevant bits).
        Change name TYPE_LEFT_JUSTIFIED_MODULAR_P to TYPE_JUSTIFIED_MODULAR_P
        These changes mean that we no longer need to initialize small packed
        arrays.
        (gnat_to_gnu_entity) <E_Record_Subtype>: Apply the same
        optimization to an LJM field as to its parent field.

        * ada-tree.h, trans.c, utils.c, utils2.c:
        Change name TYPE_LEFT_JUSTIFIED_MODULAR_P to TYPE_JUSTIFIED_MODULAR_P

2004-09-20  Jan Hubicka  <jh@suse.cz>

        * utils.c (gnat_finalize): Remove.
        (end_subprog_body): Directly call cgraph_finalize_function;
        do not lower the nested functions.

2004-09-20  Robert Dewar  <dewar@gnat.com>

        PR ada/17540
        * freeze.adb (Check_Address_Clause): Reset Is_Imported and Is_Public
        if an address clause is present, since that means that the Import
        should be ignored.

2004-09-20  Arnaud Charlet  <charlet@act-europe.fr>

        * 5tsystem.ads: Removed, no longer used.

2004-09-17  Jeffrey D. Oldham  <oldham@codesourcery.com>
            Zack Weinberg  <zack@codesourcery.com>

        * ada-tree.def: Use tree_code_class enumeration constants
        instead of code letters.
        * ada-tree.h, decl.c, misc.c, trans.c, utils.c, utils2.c:
        Update for new tree-class enumeration constants.

2004-09-17  Vincent Celier  <celier@gnat.com>

        * prj-attr-pm.ads, prj-attr-pm.adb: New files, to split some private
        capabilities of the general project manager.

2004-09-09  Vincent Celier  <celier@gnat.com>

        * a-direct.ads: Add pragma Ada_05
        (Directory_Entry_Type): Give default value to component Kind to avoid
        not initialized warnings.

        * a-direct.adb (Current_Directory): Remove directory separator at the
        end.
        (Delete_Directory, Delete_Tree): Raise Name_Error if Directory is not
        an existing directory.
        (Fetch_Next_Entry): Give default value to variable Kind to avoid warning
        (Size (String)): Function C_Size returns Long_Integer, not File_Size.
        Convert the result to File_Size.

        * prj.ads: (Project_Error): New exception

        * prj-attr.adb: Except in procedure Initialize, Fail comes from
        Prj.Com, not from Osint.
        (Attrs, Package_Attributes): Tables moved to private part of spec
        (Add_Attribute, Add_Unknown_Package): Moved to new child package
        Prj.Attr.PM.
        (Register_New_Package (Name, Attributes), Register_New_Attribute): Raise
        Prj.Project_Error after call to Fail.
        (Register_New_Package (Name, Id)): Set Id to Empty_Package after calling
        Fail. Check that package name is not already in use.

        * prj-attr.ads: Comment updates to indicate that all subprograms may be
        used by tools, not only by the project manager, and to indicate that
        exception Prj.Prj_Error may be raised in case of problem.
        (Add_Unknown_Package, Add_Attribute): Moved to new child package
        Prj.Attr.PM.
        (Attrs, Package_Attributes): Table instantiations moved from the body to
        the private part to be accessible from Prj.Attr.PM body.

        * prj-dect.adb (Parse_Package_Declaration): Call Add_Unknown_Package
        from new package Prj.Attr.PM.
        (Parse_Attribute_Declaration): Call Add_Attribute from new package
        Prj.Attr.PM.

        * Makefile.in: Add prj-attr-pm.o to gnatmake object list

        * gnatbind.adb (Gnatbind): Correct warning message (Elaboration_Check
        instead of Elaboration_Checks).

        * a-calend.adb: Minor reformatting

2004-09-09  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * gigi.h (maybe_pad_type): New declaration.
        (create_subprog_type): New arg RETURNS_BY_TARGET_PTR.

        * ada-tree.h: (TYPE_RETURNS_BY_TARGET_PTR_P): New macro.

        * cuintp.c: Convert to use buildN.

        * decl.c (maybe_pad_type): No longer static.
        (gnat_to_gnu_entity, case E_Function): Handle case of returning by
        target pointer.
        Convert to use buildN.

        * trans.c (call_to_gnu): Add arg GNU_TARGET; support
        TYPE_RETURNS_BY_TARGET_PTR_P.  All callers changed.
        (gnat_to_gnu, case N_Assignment_Statement): Call call_to_gnu if call on
        RHS.
        (gnat_to_gnu, case N_Return): Handle TYPE_RETURN_BY_TARGET_PTR_P.
        (gnat_gimplify_expr, case ADDR_EXPR): New case.
        Convert to use buildN.

        * utils2.c (gnat_build_constructor): Also set TREE_INVARIANT and
        TREE_READONLY for const.
        Convert to use buildN.

        * utils.c (create_subprog_type): New operand RETURNS_BY_TARGET_PTR.
        (create_var_decl): Refine when TREE_STATIC is set.
        Convert to use buildN.

2004-09-09  Gary Dismukes  <dismukes@gnat.com>

        * gnat_ugn.texi: Delete text relating to checking of ali and object
        consistency.

        * a-except.adb (Rcheck_*): Add pragmas No_Return for each of these
        routines.

2004-09-09  Jose Ruiz  <ruiz@act-europe.fr>

        * gnat_ugn.texi: Add Detect_Blocking to the list of configuration
        pragmas recognized by GNAT.

        * gnat_rm.texi: Document pragma Detect_Blocking.

        * s-solita.adb (Timed_Delay_T): When pragma Detect_Blocking is active,
        raise Program_Error if called from a protected operation.

        * s-taprob.adb (Lock): When pragma Detect_Blocking is active increase
        the protected action nesting level.
        (Lock_Read_Only): When pragma Detect_Blocking is active increase the
        protected action nesting level.
        (Unlock): When pragma Detect_Blocking is active decrease the protected
        action nesting level.

        * s-taskin.adb (Initialize_ATCB): Initialize to 0 the
        Protected_Action_Nesting.

        * s-taskin.ads: Adding the field Protected_Action_Nesting to the
        Common_ATCB record. It contains the dynamic level of protected action
        nesting for each task. It is needed for checking whether potentially
        blocking operations are called from protected operations.
        (Detect_Blocking): Adding a Boolean constant reflecting whether pragma
        Detect_Blocking is active or not in the partition.

        * s-tasren.adb (Call_Simple): When pragma Detect_Blocking is active,
        raise Program_Error if called from a protected operation.
        (Task_Entry_Call): When pragma Detect_Blocking is active, raise
        Program_Error if called from a protected operation.
        (Timed_Task_Entry_Call): When pragma Detect_Blocking is active, raise
        Program_Error if called from a protected operation.

        * s-tassta.adb (Abort_Tasks): When pragma Detect_Blocking is active,
        raise Program_Error if called from a protected operation.

        * s-tpoben.adb (Lock_Entries): When pragma Detect_Blocking is active,
        raise Program_Error if called from a protected operation, and increase
        the protected action nesting level.
        (Lock_Read_Only_Entries): When pragma Detect_Blocking is active, raise
        Program_Error if called from a protected operation, and increase the
        protected action nesting level.
        (Unlock_Entries): When pragma Detect_Blocking is active decrease the
        protected action nesting level.

        * s-tposen.adb (Lock_Entry): When pragma Detect_Blocking is active,
        raise Program_Error if called from a protected operation, and increase
        the protected action nesting level.
        (Lock_Read_Only_Entry): When pragma Detect_Blocking is active, raise
        Program_Error if called from a protected operation, and increase the
        protected action nesting level.
        (Protected_Single_Entry_Call): When pragma Detect_Blocking is active,
        raise Program_Error if called from a protected operation.
        (Timed_Protected_Single_Entry_Call): When pragma Detect_Blocking is
        active, raise Program_Error if called from a protected operation.
        (Unlock_Entry): When pragma Detect_Blocking is active decrease the
        protected action nesting level.

        * sem_util.adb (Check_Potentially_Blocking_Operation): Remove the
        insertion of the statement raising Program_Error. The run time
        contains the required machinery for handling that.

        * sem_util.ads: Change comment associated to procedure
        Check_Potentially_Blocking_Operation.
        This procedure does not insert a call for raising the exception because
        that is currently done by the run time.

        * raise.h (__gnat_set_globals): Pass the detect_blocking parameter.

        * init.c: Add the global variable __gl_detect_blocking that indicates
        whether pragma Detect_Blocking is active (1) or not (0). Needed for
        making the pragma available at run time.
        (__gnat_set_globals): Pass and update the detect_blocking parameter.

        * lib-writ.adb (Write_ALI): Set the DB flag in the ali file if
        pragma Detect_Blocking is active.

        * lib-writ.ads: Document the Detect_Blocking flag (DB) in ali files.

        * ali.adb (Scan_ALI): Set the Detect_Blocking value to true if the flag
        DB is found in the ali file. Any unit compiled with pragma
        Detect_Blocking active forces its effect in the whole partition.

        * a-retide.adb (Delay_Until): Raise Program_Error if pragma
        Detect_Blocking is active and delay is called from a protected
        operation.

        * bindgen.adb (Gen_Adainit_Ada): When generating the call to
        __gnat_set_globals, pass 1 as Detect_Blocking parameter if pragma
        Detect_Blocking is active (0 otherwise).
        (Gen_Adainit_C): When generating the call to __gnat_set_globals, pass 1
        as Detect_Blocking parameter if pragma Detect_Blocking is active (0
        otherwise).

2004-09-09  Thomas Quinot  <quinot@act-europe.fr>

        * gnat_rm.texi: Rename GNAT.Perfect_Hash.Generators to
        GNAT.Perfect_Hash_Generators, and remove the empty GNAT.Perfect_Hash
        package.

        * s-parint.ads, s-parint.adb (Get_RAS_Info): New subprogram.
        (Register_Receiving_Stub): Add Subp_Info formal parameter.
        Update API in placeholder implemetation of s-parint to reflect changes
        in distribution runtime library.

        * sem_ch3.adb (Expand_Derived_Record): Rename to
        Expand_Record_Extension.

        * sem_disp.adb (Check_Controlling_Formals): Improve error message for
        primitive operations of potentially distributed object types that have
        non-controlling anonymous access formals.

        * sem_dist.ads, sem_dist.adb (Build_RAS_Primitive_Specification): New
        subprogram.
        New implementation of expansion for remote access-to-subprogram types,
        based on the RACW infrastructure.
        This version of sem_dist is compatible with PolyORB/DSA as well as
        GLADE.

        * sem_prag.adb (Analyze_Pragma, case Pragma_Asynchronous): For a pragma
        Asynchrronous that applies to a remote access-to-subprogram type, mark
        the underlying RACW type as asynchronous.

        * link.c: FreeBSD uses GNU ld: set __gnat_objlist_file_supported and
         __gnat_using_gnu_linker to 1.

        * Makefile.rtl, impunit.adb, g-perhas.ads, g-pehage.ads,
        g-pehage.adb: Rename GNAT.Perfect_Hash.Generators to
        GNAT.Perfect_Hash_Generators, and remove the empty
        GNAT.Perfect_Hash package.

        * atree.adb: Minor reformatting

        * exp_ch3.adb (Expand_Derived_Record): Rename to
        Expand_Record_Extension.
        (Build_Record_Init_Proc.Build_Assignment): The default expression in
        a component declaration must remain attached at that point in the
        tree so New_Copy_Tree copies it if the enclosing record type is derived.
        It is therefore necessary to take a copy of the expression when building
        the corresponding assignment statement in the init proc.
        As a side effect, in the case of a derived record type, we now see the
        original expression, without any rewriting that could have occurred
        during expansion of the ancestor type's init proc, and we do not need
        to go back to Original_Node.

        * exp_ch3.ads (Expand_Derived_Record): Rename to
        Expand_Record_Extension.

        * exp_dist.ads, exp_dist.adb (Underlying_RACW_Type): New subprogram.
        Returns the RACW type used to implement a remote access-to-subprogram
        type.
        (Add_RAS_Proxy_And_Analyze, Build_Remote_Subprogram_Proxy_Type):
        New subprograms. Used to create a proxy tagged object for a remote
        subprogram. The proxy object is used as the designated object
        for RAS values on the same partition (unless All_Calls_Remote applies).
        (Build_Get_Unique_RP_Call): New subprogram. Build a call to
        System.Partition_Interface.Get_Unique_Remote_Pointer.
        (Add_RAS_Access_TSS, Add_RAS_Dereference_TSS):
        Renamed from Add_RAS_*_Attribute.
        (Add_Receiving_Stubs_To_Declarations): Generate a table of local
        subprograms.
        New implementation of expansion for remote access-to-subprogram types,
        based on the RACW infrastructure.

        * exp_dist.ads (Copy_Specification): Update comment to note that this
        function can copy the specification from either a subprogram
        specification or an access-to-subprogram type definition.

2004-09-09  Ed Schonberg  <schonberg@gnat.com>

        * sem_type.adb (Disambiguate): Handle properly an accidental ambiguity
        in an instance, between an explicit subprogram an one inherited from a
        type derived from an actual.

        * exp_ch6.adb (Expand_N_Subprogram_Body): If polling is enabled, do not
        add a polling call if the subprogram is to be inlined by the back-end,
        to avoid repeated calls with multiple inlinings.

        * checks.adb (Apply_Alignment_Check): If the expression in the address
        clause is a call whose name is not a static entity (e.g. a dispatching
        call), treat as dynamic.

2004-09-09  Robert Dewar  <dewar@gnat.com>

        * g-trasym.ads: Minor reformatting

        * exp_ch3.adb (Component_Needs_Simple_Initialization): Don't except
        packed arrays, since unused bits are expected to be zero for a
        comparison.

2004-09-09  Eric Botcazou  <ebotcazou@act-europe.fr>

        * exp_pakd.ads: Fix an inacurracy and a couple of typos in the head
        comment.

2004-09-09  Pascal Obry  <obry@gnat.com>

        * mdll.ads, mdll.adb (Build_Dynamic_Library): New parameter Map_File to
        enable map file generation. Add the right option to generate the map
        file if Map_File is set to True.

        * gnatdll.adb (Gen_Map_File): New variable.
        (Syntax): Add info about new -m (Map_File) option.
        (Parse_Command_Line): Add support for -m option.
        (gnatdll): Pass Gen_Map_File to Build_Dynamic_Library calls.
        Minor reformatting.

2004-09-09  Laurent Pautet  <pautet@act-europe.fr>

        * gnatls.adb: Add a very verbose mode -V. Such mode is required by the
        new gnatdist implementation.
        Define a subpackage isolating the output routines specific to this
        verbose mode.

2004-09-09  Joel Brobecker  <brobecker@gnat.com>

        * Makefile.rtl: (GNATRTL_NONTASKING_OBJS): Add g-dynhta.

        * gnat_ugn.texi (Main Subprograms): Fix typo. Deduced, not deducted.

2004-09-09  Cyrille Comar  <comar@act-europe.fr>

        * opt.adb (Set_Opt_Config_Switches): Use Ada_Version_Runtime to compile
        internal unit.

        * opt.ads: Add Ada_Version_Runtime constant used to decide which
        version of the language is used to compile the run time.

2004-09-09  Arnaud Charlet  <charlet@act-europe.fr>

        * sem_util.adb (Requires_Transient_Scope): Re-enable handling
        of variable length temporaries for function return now that the
        back-end and gigi support it.

2004-09-01  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * misc.c (gnat_print_type): Use TYPE_RM_SIZE_NUM.

        * trans.c (struct stmt_group): Delete field GLOBAL.
        (gnat_init_stmt_group): Do not initialize it.
        (call_to_gnu): Use save_expr, not protect_multiple_eval.
        (Exception_Handler_to_gnu_sjlj): Call build_int_cst, not build_int_2
        (gnat_to_gnu, case N_Character_Literal, N_String_Literal): Likewise.
        (gnat_to_gnu, case N_Compilation_Unit): Do not set GLOBAL in stmt group.
        (start_stmt_group): Likewise.
        (add_stmt, add_decl_expr): Rework handling of global DECL_EXPRs.

        * utils2.c (ggc.h): Include.
        (build_call_raise): Call build_int_cst, not build_int_2.

        * utils.c (gnat_init_decl_processing): Fix arg to
        build_common_tree_nodes.
        (create_subprog_type): Do not use SET_TYPE_CI_CO_LIST.
        (gnat_define_builtin): Set built_in_decls.
        (init_gigi_decls): Call build_int_cst, not build_int_2.

        * ada-tree.h (struct lang_decl, struct lang_type): Field is type tree.
        (GET_TYPE_LANG_SPECIFIC, SET_TYPE_LANG_SPECIFIC): New macros.
        (GET_DECL_LANG_SPECIFIC, SET_DECL_LANG_SPECIFIC): Likewise.
        (TYPE_CI_CO_LIST, SET_TYPE_CI_CO_LIST, TYPE_MODULE,
        SET_TYPE_MODULE): Use them.
        (TYPE_INDEX_TYPE, SET_TYPE_INDEX_TYPE, TYPE_DIGITS_VALUE): Likewise.
        (SET_TYPE_DIGITS_VALUE, TYPE_UNCONSTRAINED_ARRAY): Likewise.
        (SET_TYPE_UNCONSTRAINED_ARRAY, TYPE_ADA_SIZE,
        SET_TYPE_ADA_SIZE): Likewise.
        (TYPE_ACTUAL_BOUNDS, SET_TYPE_ACTUAL_BOUNDS): Likewise.
        (DECL_CONST_CORRESPONDING_VAR,
        SET_DECL_CONST_CORRESPONDING_VAR): Likewise.
        (DECL_ORIGINAL_FIELD, SET_DECL_ORIGINAL_FIELD): Likewise.
        (TYPE_RM_SIZE_INT, TYPE_RM_SIZE_ENUM, SET_TYPE_RM_SIZE_ENUM): Deleted.
        (TYPE_RM_SIZE_NUM): New macro.
        (TYPE_RM_SIZE): Modified to use above.

        * cuintp.c: (build_cst_from_int): New function.
        (UI_To_gnu): Use it.

        * decl.c (gnat_to_gnu_entity): Use TYPE_RM_SIZE_NUM.
        (make_type_from_size): Avoid changing TYPE_UNSIGNED of a type.
        (gnat_substitute_in_type, case ARRAY_TYPE): If old had a
        MIN_EXPR for the size, copy it into new.

2004-09-01  Robert Dewar  <dewar@gnat.com>

        * exp_ch6.adb (Expand_Call): Properly handle validity checks for
        packed indexed component where array is an IN OUT formal. This
        generated garbage code previously.

        * gnat_ugn.texi: Document -fverbose-asm

        * gnat-style.texi: Minor updates (note that boolean constants and
        variables are joined with AND/OR rather than short circuit forms).

2004-09-01  Ed Schonberg  <schonberg@gnat.com>

        * exp_util.adb (Safe_Unchecked_Type_Conversion): Conversion is safe if
        it is an upward conversion of an untagged type with no representation
        change.

2004-09-01  Thomas Quinot  <quinot@act-europe.fr>

        * rtsfind.ads: Move RCI_Subp_Info and RCI_Subp_Info_Array to
        System.Partition_Interface.

        * checks.adb (Apply_Access_Checks): Do not generate checks when
        expander is not active (but check for unset reference to prefix of
        dereference).

        * sem_prag.adb (Analyze_Pragma, case Pragma_Debug): Uniformly rewrite
        pragma Debug as an if statement with a constant condition, for
        consistent treatment of entity references contained within the
        enclosed procedure call.

2004-09-01  Vincent Celier  <celier@gnat.com>

        * bindgen.adb: (Set_EA_Last): New procedure
        (Gen_Exception_Table_Ada, Gen_Exception_Table_C): Use new procedure
        Set_EA_Last.
        (Gen_Adafinal_Ada): If no finalization, adafinal does nothing
        (Gen_Output_File_Ada): Always call Gen_Adafinal_Ada, so that SAL can be
        linked without errors.
        (Gen_Exception_Table_Ada): Correct bugs when generating code for arrays
        ST and EA.
        (Gen_Exception_Table_C): Correct same bugs

        * vms_data.ads: Add new qualifier /VERBOSE_ASM to GCC_Switches

        * g-os_lib.adb (Normalize_Pathname.Get_Directory): When Dir is empty,
        on Windows, make sure that the drive letter is in upper case.

        * g-os_lib.ads (Normalize_Pathname): Add a comment to indicate that on
        Windows, when the drive letter is added and Case_Sensitive is True, the
        drive letter is forced to upper case.

        * mlib-tgt-irix.adb (Build_Dynamic_Library): Transfer all -lxxx options
        to Options_2 for the call to MLib.Utl.Gcc.

        * bld.adb (Put_Include_Project): Use '/', not '\' on Windows as
        directory separator when defining BASE_DIR.

2004-09-01  Pascal Obry  <obry@gnat.com>

        * gprcmd.adb (Extend): Do not output trailing directory separator. This
        is not needed and it confuses Windows GNU/make which does not report
        directory terminated by a slash as a directory.
        (gprcmd): Idem for "pwd" internal command.

        * Makefile.generic: Use __GPRCOLON__ instead of pipe character in
        target names rewrite to fix regressions with recent version of
        GNU/make. Starting with GNU/make 3.80 the pipe character was not
        handled properly anymore.

2004-09-01  Andreas Schwab  <schwab@suse.de>

        * Make-lang.in (EXTRA_GNATBIND_OBJS): Revert last change.
        * raise.c [!IN_RTS]: Undef abort.

2004-08-27  Nathan Sidwell  <nathan@codesourcery.com>

        * utils2.c (build_allocator): Use ssize_int.

        * utils.c (gnat_init_decl_processing): Ada has a signed sizetype.

2004-08-27  Andreas Schwab  <schwab@suse.de>

        * Make-lang.in (EXTRA_GNATBIND_OBJS): Add errors.o.

2004-08-25  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * ada-tree.h (TYPE_RM_SIZE_INT): Use TYPE_LANG_SLOT_1.

2004-08-25  Nathan Sidwell  <nathan@codesourcery.com>

        * cuintp.c (UI_To_gnu): Adjust build_int_cst calls.
        * trans.c (Exception_Handler_to_gnu_sjlj, gnat_to_gnu): Likewise.
        * utils.c (init_gigi_decls): Likewise.
        * utils2.c (build_call_raise, build_allocator): Likewise.

2004-08-24  Nathan Sidwell  <nathan@codesourcery.com>

        * utils.c (gnat_init_decl_processing): Adjust
        build_common_tree_nodes call.

2004-08-20  Nathan Sidwell  <nathan@codesourcery.com>

        * utils2.c (build_allocator): Use build_int_cst for negative
        size types.

2004-08-18  Richard Henderson  <rth@redhat.com>

        * misc.c (LANG_HOOKS_HONOR_READONLY): Remove.

2004-08-16  Nathan Sidwell  <nathan@codesourcery.com>

        * cuintp.c (UI_To_gnu): Be more conservative with build_int_cst
        call.s
        * trans.c (Exception_Handler_to_gnu_sjlj): Likewise.
        (gnat_to_gnu): Likewise.

2004-08-16  Pascal Obry  <obry@gnat.com>

        * adaint.c (__gnat_prj_add_obj_files): Set to 0 only on Win32 for GCC
        backend prior to GCC 3.4. With GCC 3.4 we are using the GCC's shared
        option and not mdll anymore. Update comment.

2004-08-16  Pascal Obry  <obry@gnat.com>

        * bld.adb (Put_Include_Project): Properly handle directory separators
        on Windows.

2004-08-16  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch4.adb (Try_Object_Operation): Restructure code. Optimize by
        decreasing the number of allocated junk nodes while searching for the
        appropriate subprogram.

2004-08-15  Nathan Sidwell  <nathan@codesourcery.com>

        * cuintp.c (UI_To_gnu): Use build_int_cst..
        * trans.c (Exception_Handler_to_gnu_sjlj, gnat_to_gnu): Likewise.
        * utils.c (init_gigi_decls): Likewise.
        * utils2.c (build_call_raise): Likewise.

2004-08-13  Olivier Hainque  <hainque@act-europe.fr>

        * decl.c (gnat_to_gnu_entity) <E_Variable>: When building an allocator
        for a global aliased object with a variable size and an unconstrained
        nominal subtype, pretend there is no initializer if the one we have is
        incomplete, and avoid referencing an inexistant component in there. The
        part we have will be rebuilt anyway and the reference may confuse
        further operations.

2004-08-13  Thomas Quinot  <quinot@act-europe.fr>

        * einfo.ads: Minor reformatting

        * lib-writ.adb (Output_Main_Program_Line): Do not set parameter
        restrictions in the ALI if we only want to warn about violations.

2004-08-13  Vincent Celier  <celier@gnat.com>

        * ali.adb (Scan_ALI): Initialize component Body_Needed_For_SAL to False
        when creating a new Unit_Record in table Units.

        * gnatls.adb (Output_Unit): In verbose mode, output the restrictions
        that are violated, if any.

        * prj-nmsc.adb (Ada_Check.Get_Path_Names_And_Record_Sources): Do not
        add directory separator if path already ends with a directory separator.

2004-08-13  Ed Schonberg  <schonberg@gnat.com>

        * rtsfind.adb (Entity_Not_Defined): If the error ocurrs in a predefined
        unit, this is an attempt to inline a construct that is not available in
        the current restricted mode, so abort rather than trying to continue.

        * sem_ch3.adb (Build_Underlying_Full_View): If the new type has
        discriminants that rename those of the parent, recover names of
        original discriminants for the constraint on the full view of the
        parent.
        (Complete_Private_Subtype): Do not create a subtype declaration if the
        subtype is an itype.

        * gnat_rm.texi: Added section on implementation of discriminated
        records with default values for discriminants.

2004-08-13  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15601
        * sem_res.adb (Make_Call_Into_Operator): Handle properly the case where
        the second operand is overloaded.

2004-08-10  Richard Henderson  <rth@redhat.com>

        * utils.c (gnat_install_builtins): Remove __builtin_stack_alloc,
        add __builtin_alloca.

2004-08-10  Richard Henderson  <rth@redhat.com>

        * config-lang.in (boot_language): Yes.

2004-08-09  Thomas Quinot  <quinot@act-europe.fr>

        * g-socket.adb (Abort_Selector): Initialize Buf to prevent valgrind
        from complaining on potential uninitialized reference.
        Change calls to GNAT.Sockets.Thin.Is_Socket_In_Set to account for
        new specification and test explicitly for non-zero return value.

        * g-socthi.ads (Is_Socket_In_Set): Declare imported function as
        returning C.int, to avoid using a derived boolean type.

        * exp_ch5.adb (Make_Tag_Ctrl_Assignments): Use
        Duplicate_Subexpr_No_Checks in preference to direct use of
        Remove_Side_Effects and New_Copy_Tree.
        Clear Comes_From_Source on prefix of 'Size attribute reference.

        * g-socthi.adb, g-socthi-vms.adb, g-socthi-mingw.adb,
        g-socthi-vxworks.adb: Change calls to
        GNAT.Sockets.Thin.Is_Socket_In_Set to account for new specification
        and test explicitly for non-zero return value.

        * g-socthi-vms.ads, g-socthi-mingw.ads, g-socthi-vxworks.ads:
        (Is_Socket_In_Set): Declare imported function as returning C.int, to
        avoid using a derived boolean type.

2004-08-09  Albert Lee  <lee@gnat.com>

        * system-irix-n32.ads: Refine tasking priority constants for IRIX.

2004-08-09  Pascal Obry  <obry@gnat.com>

        * gnat_ugn.texi: Document new way to build DLLs on Windows using
        GCC's -shared option.

        * mlib-tgt-mingw.adb (Build_Dynamic_Library): Pass GCC's options into
        Options_2 parameter (options put after object files).

2004-08-09  Olivier Hainque  <hainque@act-europe.fr>

        * decl.c (gnat_to_gnu_entity) <E_Array_Subtype>: Adjust condition to
        ignore overflows on low and high bounds of an index to also account for
        differences in signedness between sizetype and gnu_index_subtype.
        These are as legitimate as the ones caused by a lower TYPE_PRECISION
        on sizetype.

2004-08-09  Robert Dewar  <dewar@gnat.com>

        * s-solita.ads, s-solita.adb: Minor reformatting

        * gnat_rm.texi: Add documentation for pragma Profile (Restricted)
        Move pragma Restricted_Run_Time, No_Run_Time, Ravenscar to new
        obsolescent section
        Add note that No_Implicit_Conditionals does not suppress
        run time constraint checks.

        * vms_conv.ads: Minor reformatting

        * s-secsta.adb: Use SS_Ptr instead of Mark_Id as stack pointer (cleanup
        and necessary for following change).
        (Mark): Return new format Mark_Id containing sec stack address
        (Release): Use sec stack address from Mark_Id avoiding Self call

        * s-secsta.ads: Define SS_Ptr to be used instead of Mark_Id as stack
        pointer (cleanup and necessary for following change).
        Define Mark_Id as record containing address of secondary stack, that way
        Release does not need to find the stack again, decreasing the number of
        calls to Self and improving efficiency.

        * sem_util.ads: Add a ??? comment for Is_Local_Variable_Reference

        * sem_ch5.adb (Analyze_Case_Statement): Add circuitry to track value of
        case variable into the individual case branches when possible.

        * sem_ch11.adb: Minor reformatting

        * prj.ads: Correct spelling of suffixs

        * prj-nmsc.adb: Minor reformatting
        Correct spelling suffixs throughout (also in identifiers)

        * freeze.adb: Minor spelling correction

        * exp_ch2.adb: Cleanups to handling of Current_Value
        (no functional effect).

        * bld.adb: Correct spelling of suffixs

        * einfo.adb (Enclosing_Dynamic_Scope): Defend against junk argument

2004-08-09  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15408
        * sem_ch7.adb (Install_Private_Declarations): In the body of the
        package or of a child, private entities are both immediately_visible
        and not hidden.

2004-08-09  Ed Schonberg  <schonberg@gnat.com>

        * sem_eval.adb (Eval_Integer_Literal): If the context is Any_Integer,
        there are no range checks on the value of the literal.

        * exp_ch7.adb (Insert_Actions_In_Scope_Around): If the node being
        wrapped is the triggering alternative of an asynchronous select, action
        statements mustbe inserted before the select itself.

        * sem_attr.adb (Analyze_Attribute, case 'Size): Handle properly the
        case where the prefix is a protected function call.
        (Resolve_Attribute, case 'Access): The attribute reference on a
        subprogram is legal in a generic body if the subprogram is declared
        elsewhere.

2004-08-09  Vincent Celier  <celier@gnat.com>

        * makegpr.adb (Build_Library): Link with g++ if C++ is one of the
        languages, otherwise building the library may fail with unresolved
        symbols.
        (Compile_Sources): Do not build libraries if -c switch is used

        * gnatlink.adb (Process_Args): New switches -M and -Mmap
        (Write_Usage): If map file creation is supported, output new switches
        -M and -Mmap.
        (Gnatlink): When -M is specified, add the necessary switch(es) to the
        gcc call, when supported.

        * Makefile.in: Added indepsw.o to the object list for gnatlink
        Specified the AIX, GNU/Linux and Windows versions of indepsw.adb

        * indepsw-aix.adb, indepsw-linux.adb, indepsw-mingw.adb,
        indepsw.adb, indepsw.ads: New files.

2004-08-09  Bernard Banner  <banner@gnat.com>

        * system-vxworks-x86.ads, s-vxwork-x86.ads: New files.

        * Makefile.in: add section for vxworks x86

2004-08-09  Hristian Kirtchev  <kirtchev@gnat.com>

        * exp_ch3.adb (Build_Init_Statements): Add extra condition to deal with
        per-object constrained components where the discriminant is of an
        Access type.
        (Build_Record_Init_Proc): Add condition to prevent the inheritance of
        the parent initialization procedure for derived Unchecked_Unions.
        Instead, derived Unchecked_Unions build their own initialization
        procedure.
        (Build_Variant_Record_Equality): Implement Unchecked_Union equality.
        Check the body of the subprogram for details.
        (Freeze_Record_Type): Prevent the inheritance of discriminant checking
        functions for derived Unchecked_Union types by introducing a condition.
        Allow the creation of TSS equality functions for Unchecked_Unions.
        (Make_Eq_Case): Rename formal parameter Node to E in function signature.
        Add formal parameter Discr to function signature. Discr is used to
        control the generated case statement for Unchecked_Union types.
        (Make_Eq_If): Rename formal parameter Node to E in function signature.

        * exp_ch4.adb (Build_Equality_Call): Implement equality calls for
        Unchecked_Unions.
        Check the body of the subprogram for details.
        (Expand_Composite_Equality): Augment composite type equality to include
        correct handling of Unchecked_Union components.
        (Expand_N_In): Add condition to detect illegal membership tests when the
        subtype mark is a constrained Unchecked_Union and the expression lacks
        inferable discriminants, and build a Raise_Program_Error node.
        (Expand_N_Op_Eq): Add function Has_Unconstrained_UU_Component. Used
        to detect types that contain components of unconstrained Unchecked_Union
        subtype. Add condition to detect equality between types that have an
        unconstrained Unchecked_Union component, and build a Raise_Program_Error
        node. Add condition to detect equality between Unchecked_Union types
        that lack inferable discriminants, and build a Raise_Program_Error node.
        Otherwise build a TSS equality function call.
        (Expand_N_Type_Conversion): Add condition to detect illegal conversions
        from a derived Unchecked_Union to an unconstrained non-Unchecked_Union
        with the operand lacking inferable discriminants, and build a Raise_
        Program_Error node.
        (Expand_Record_Equality): Remove guard that prevents Unchecked_Union
        composite equality.
        (Has_Inferable_Discriminants): Implement new predicate for objects and
        expressions of Unchecked_Union type. Check the body of subprogram for
        details.
        (Has_Unconstrained_UU_Components): Add function
        Component_Is_Unconstrained_UU. It is used to detect whether a single
        component is of an unconstrained Unchecked_Union subtype. Add function
        Variant_Is_Unconstrained_UU. It is used to detect whether a single
        component inside a variant is of an unconstrained Unchecked_Union type.

        * exp_ch5.adb (Expand_Assign_Record): Add condition to copy the
        inferred discriminant values. Add condition to generate a case
        statement with an inferred discriminant as the switch.
        (Make_Component_List_Assign): Introduce a Boolean flag that determines
        the behaviour of the subprogram in the presence of an Unchecked_Union.
        Add condition to trigger the usage of the inferred discriminant value
        as the generated case statement switch.
        (Make_Field_Assign): Introduce a Boolean flag that determines the
        behaviour of the subprogram in the presence of an Unchecked_Union. Add
        condition to trigger the usage of the inferred discriminant value as
        the right-hand side of the generated assignment.

        * exp_ch6.adb (Expand_Call): Add condition to skip extra actual
        parameter generation when dealing with Unchecked_Unions.

        * checks.adb (Apply_Discriminant_Check): Do not apply discriminant
        checks for Unchecked_Unions.

        * einfo.ads: Update comment on usage of flag Has_Per_Object_Constraint

        * exp_attr.adb (Expand_N_Attribute_Reference): Produce
        Raise_Program_Error nodes for the execution of Read and Write
        attributes of Unchecked_Union types and the execution of Input and
        Output attributes of Unchecked_Union types that lack default
        discriminant values.

        * sem_prag.adb (Analyze_Pragma): Remodel the analysis of pragma
        Unchecked_Union. Add procedure Check_Component. It is used to inspect
        per-object constrained components of Unchecked_Unions for being
        Unchecked_Unions themselves. Add procedure Check_Variant. It is used to
        check individual components withing a variant.

        * sem_res.adb (Resolve_Comparison_Op): Remove guard that prevents
        comparison of Unchecked_Unions.
        (Resolve_Equality_OP): Remove guard that prevents equality between
        Unchecked_Unions.

        * sem_util.adb (Build_Component_Subtype): Add guard to prevent creation
        of component subtypes for Unchecked_Union components.
        (Get_Actual_Subtype): Add condition that returs the Unchecked_Union type
        since it is the actual subtype.

        * sem_ch12.adb (Instantiate_Type): Add condition to detect the correct
        pass of Unchecked_Union subtypes as generic actuals to formal types
        that lack known_discriminant_parts or that are derived Unchecked_Union
        types, and do nothing. In any other case, produce an error message.

        * sem_ch3.adb (Analyze_Component_Declaration): Add function
        Contains_POC. It determines whether a constraint uses the discriminant
        of an enclosing record type.
        Add condition to detect per-object constrained component and set the
        appropriate flag.
        (Derived_Type_Declaration): Remove guard that prevents derivation from
        Unchecked_Union types.
        (Process_Subtype): Remove quard that prevents the creation of Unchecked_
        Union subtypes.

        * sem_ch4.adb (Analyze_Selected_Component): Correct the detection of
        references to Unchecked_Union discriminants.

        * sem_ch6.adb (Create_Extra_Formals): Add condition to skip extra
        formal generation when dealing with Unchecked_Unions.
        (Set_Actual_Subtypes): Add condition to prevent generation of actual
        subtypes for Unchecked_Unions.

        * sem_ch7.adb (Analyze_Package_Specification): Add procedure
        Inspect_Unchecked_Union_Completion. It is used to detect incorrect
        completions of discriminated partial views by Unchecked_Unions and
        produce an error message.

2004-08-09  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (struct stmt_group): New field, GLOBAL.
        (global_stmt_group, gnu_elab_proc_decl, build_unit_elab): Deleted.
        (struct elab_info): New struct.
        (elab_info_list, gnu_elab_proc_stack): New variables.
        (Compilation_Unit_to_gnu): New procedure.
        (gigi): Call it and also handle elaboration procs we've saved.
        (gnat_init_stmt_group): Don't set global_stmt_group; instead initialize
        global field from parent.
        (gnat_to_gnu): Get decl from gnu_elab_proc_stack.
        (gnat_to_gnu, case N_Compilation_Unit): Call Compilation_Unit_to_gnu.
        (start_stmt_group): Initialize global field from parent.
        (add_decl_expr): Set to global for current statement group.
        (gnat_gimplify_expr, case NULL_EXPR): Add operand 0 to pre list, not
        post.

        * utils.c (global_bindings_p): True when no current_function_decl; no
        longer check current_binding_level.

2004-08-09  Ben Brosgol  <brosgol@gnat.com>

        * xgnatugn.adb: Added logic to deal with @ifset/@ifclear for edition
        choice.

        * gnat_rm.texi, gnat_ugn.texi: Added edition conditionalization logic.

2004-08-06  Andreas Schwab  <schwab@suse.de>

        * utils.c (gnat_define_builtin): Remove second parameter of
        make_decl_rtl.
        (begin_subprog_body): Likewise.

2004-07-26  Arnaud Charlet  <charlet@act-europe.fr>

        * sem_util.adb (Requires_Transient_Scope): Temporarily disable
        optimization, not supported by the tree-ssa back-end.

2004-07-26  Olivier Hainque  <hainque@act-europe.fr>

        * s-mastop-irix.adb: Update comments.

        * a-except.adb (Exception_Information): Raise Constraint_Error if
        exception Id is Null_Id.
        This is required behavior, which is more reliably and clearly checked
        at the top level interface level.

2004-07-26  Javier Miranda  <miranda@gnat.com>

        * exp_aggr.adb (Build_Array_Aggr_Code): Do not build the initialization
        call if a component has no default_expression and the box is used.

        * sem_aggr.adb (Resolve_Array_Aggregate): If a component has no
        default_expression and you use box, it behaves as if you had declared a
        stand-alone object.
        (Resolve_Record_Aggregate): If a component has no default_expression and
        you use box, it behaves as if you had declared a stand-alone object.

        * sem_ch10.adb (Install_Siblings): Do not make visible the private
        entities of private-with siblings.

2004-07-26  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch3.adb (Build_Underlying_Full_View): If this is the full view
        for a component of an itype, set the parent pointer for analysis,
        there is no list in which to insert it.

        * sem_res.adb (Resolve): Call Rewrite_Renamed_Operator only for
        bona-fide renamings, not for inherited operations.

        * exp_ch4.adb (Expand_Allocator_Expression): If the allocator is an
        actual for a formal that is an access parameter, create local
        finalization list even if the expression is not an aggregate.

2004-07-26  Ed Schonberg  <schonberg@gnat.com>

        PR ada/16213
        * sem_ch8.adb (Attribute_Renaming, Check_Library_Level_Renaming):
        Diagnose properly illegal subprogram renamings that are library units.

2004-07-26  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15588
        * sem_util.adb (Is_OK_Variable_For_Out_Formal): If actual is a type
        conversion rewritten as an unchecked conversion, check that original
        expression is a variable.

        * exp_ch4.adb (Expand_N_Type_Conversion): If rewriting as an
        unchecked_conversion, create new node rather than rewriting in place,
        to preserve original construct.

2004-07-26  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * gigi.h (gnat_expand_body): Deleted.

        * Make-lang.in: (trans.o): Depends on function.h.

        * misc.c: (gnat_expand_body): Moved to here.

        * trans.c (gnat_expand_body_1): Deleted.
        (gnat_expand_body): Moved from here.
        (gnat_to_gnu): N_Implicit_Label_Declaration forces being in elab proc.
        (add_stmt): Check for marked visited with global_bindings_p.
        (gnat_gimplify_expr, case COMPONENT_REF): New case.
        (gnat_gimplify_expr, case NULL_EXPR): Set TREE_NO_WARNING for temp.

        * utils2.c (build_binary_op, case MODIFY_EXPR): Put LHS in a
        VIEW_CONVERT_EXPR if not operation type.

        * utils.c (update_pointer_to): Set DECL_ORIGINAL_FIELD for
        fat pointer.

        * decl.c, cuintp.c, gigi.h, misc.c, trans.c, utils.c, utils2.c: Minor
        changes: reformatting of negation operators, removing unneeded
        inequality comparison with zero, converting equality comparisons with
        zero to negations, changing int/0/1 to bool/false/true, replace calls
        to gigi_abort with abort, and various other similar changes.

2004-07-26  Vincent Celier  <celier@gnat.com>

        * gnatcmd.adb (GNATCmd): Add processing for new built-in command
        "setup".

        * make.adb (Gnatmake): Fail when a library is not present and there is
        no object directory.

        * mlib-prj.adb (Check_Library): No need to check if the library needs
        to be rebuilt if there is no object directory, hence no object files
        to build the library.

        * opt.ads (Setup_Projects): New Boolean flag.

        * prj-nmsc.adb (Locate_Directory): New parameter Project, Kind and
        Location.
        Create directory when Kind /= "" and in "gnat setup". Report error if
        directory cannot be created.
        (Ada_Check): Create library interface copy dir if it does not exist
        and we are in "gnat setup".
        (Find_Sources): No error if in "gnat setup" and no Ada sources were
        found.
        (Language_Independent_Check): Create object directory, exec directory
        and/or library directory if they do not exist and we are in
        "gnat setup".

        * vms_conv.ads: (Command_Type): New command Setup.

        * vms_conv.adb (Initialize): Add Setup component of Cammand_List.

        * vms_data.ads: Add qualifiers/switches for new built-in command
        "setup".

2004-07-25  Richard Henderson  <rth@redhat.com>

        * utils.c (create_subprog_decl): Set DECL_ARTIFICIAL and
        DECL_IGNORED_P on RESULT_DECL.

2004-07-20  Olivier Hainque  <hainque@act-europe.fr>

        * a-elchha.adb (Last_Chance_Handler): Remove the bogus buffer dynamic
        allocation and potentially overflowing update with
        Tailored_Exception_Information. Use the sec-stack free procedural
        interface to output Exception_Information instead.

        * a-except.adb (To_Stderr): New subprogram for character, and string
        version moved from a-exextr to be visible from other separate units.
        (Tailored_Exception_Information): Remove the procedural version,
        previously used by the default Last_Chance_Handler and not any more.
        Adjust various comments.

        * a-exexda.adb: Generalize the exception information procedural
        interface, to minimize the use of secondary stack and the need for
        local buffers when the info is to be output to stderr:
        (Address_Image): Removed.
        (Append_Info_Character): New subprogram, checking for overflows and
        outputing to stderr if buffer to fill is of length 0.
        (Append_Info_String): Output to stderr if buffer to fill is of length 0.
        (Append_Info_Address, Append_Info_Exception_Name,
        Append_Info_Exception_Message, Append_Info_Basic_Exception_Information,
        Append_Info_Basic_Exception_Traceback,
        Append_Info_Exception_Information): New subprograms.
        (Append_Info_Nat, Append_Info_NL): Use Append_Info_Character.
        (Basic_Exception_Info_Maxlength, Basic_Exception_Tback_Maxlength,
        Exception_Info_Maxlength, Exception_Name_Length,
        Exception_Message_Length): New subprograms.
        (Exception_Information): Use Append_Info_Exception_Information.
        (Tailored_Exception_Information): Use
        Append_Info_Basic_Exception_Information.
        Export services for the default Last_Chance_Handler.

        * a-exextr.adb (To_Stderr): Remove. Now in a-except to be usable by
        other separate units.

2004-07-20  Vincent Celier  <celier@gnat.com>

        * clean.adb, mlib-utl.adb, osint.adb, makegpr.adb: Minor reformatting.

2004-07-20  Ed Schonberg  <schonberg@gnat.com>

        * freeze.adb (Freeze_Entity): If entity is a discriminated record type,
        emit itype references for the designated types of component types that
        are declared outside of the full record declaration, and that may
        denote a partial view of that record type.

2004-07-20  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15607
        * sem_ch3.adb (Build_Discriminated_Subtype): Do not attach a subtype
        which is the designated type in an access component declaration, to the
        list of incomplete dependents of the parent type, to avoid elaboration
        issues with out-of-scope subtypes.
        (Complete_Private_Subtype): Recompute Has_Unknown_Discriminants from the
        full view of the parent.

2004-07-20  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15610
        * sem_ch8.adb (Find_Expanded_Name): If name is overloaded, reject
        entities that are hidden, such as references to generic actuals
        outside an instance.

2004-07-20  Javier Miranda  <miranda@gnat.com>

        * sem_ch4.adb (Try_Object_Operation): New subprogram that gives
        support to the new notation.
        (Analyze_Selected_Component): Add call to Try_Object_Operation.

2004-07-20  Jose Ruiz  <ruiz@act-europe.fr>

        * s-taprob.adb: Adding the elaboration code required for initializing
        the tasking soft links that are common to the full and the restricted
        run times.

        * s-tarest.adb (Init_RTS): Tasking soft links that are shared with the
        restricted run time has been moved to the package
        System.Soft_Links.Tasking.

        * s-tasini.adb (Init_RTS): Tasking soft links that are shared with the
        restricted run time has been moved to the package
        System.Soft_Links.Tasking.

        * Makefile.rtl: Add entry for s-solita.o in run-time library list.

        * s-solita.ads, s-solita.adb: New files.

2004-07-20  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (Identifier_to_gnu, Pragma_to_gnu, Attribute_to_gnu,
        Case_Statement_to_gnu): Split off from gnat_to_gnu.
        (Loop_Statement_to_gnu, Subprogram_Body_to_gnu, call_to_gnu,
        Handled_Sequence_Of_Statements_to_gnu, Exception_Handler_to_gnu_sjlj,
        Exception_Handler_to_gnu_zcx): Likewise.

2004-07-17  Joseph S. Myers  <jsm@polyomino.org.uk>

        * gigi.h (builtin_function): Declare.

2004-07-15  Robert Dewar  <dewar@gnat.com>

        * makegpr.adb, s-secsta.ads, sem_ch3.adb, sem_case.adb: Minor
        reformatting

        * gnat_ugn.texi: Add instantiation of direct_io or sequential_io with
        access values as an example of a warning.

        * gnat_rm.texi: Document new attribute Has_Access_Values

        * gnat-style.texi: Document that box comments belong on nested
        subprograms

        * sem_util.ads (Has_Access_Values): Improved documentation

        * s-finimp.ads, s-finimp.adb: Fix spelling error in comment

        * sem_prag.adb (Check_Duplicated_Export_Name): New procedure
        (Process_Interface_Name): Call to this new procedure
        (Set_Extended_Import_Export_External_Name): Call to this new procedure

        * s-mastop-x86.adb, 9drpc.adb: Fix spelling error in comment

        * a-direio.ads, a-sequio.ads: Warn if Element_Type has access values

        * einfo.ads: Minor comment typo fixed

2004-07-15  Jose Ruiz  <ruiz@act-europe.fr>

        * snames.adb: Add _atcb.

        * snames.ads: Add Name_uATCB.

        * s-tarest.adb (Create_Restricted_Task): ATCBs are always preallocated
        (in the expanded code) when using the restricted run time.

        * s-tarest.ads (Create_Restricted_Task): Created_Task transformed into
        a in parameter in order to allow ATCBs to be preallocated (in the
        expanded code).

        * s-taskin.adb (Initialize_ATCB): T converted into a in parameter in
        order to allow ATCBs to be preallocated. In case of error, the ATCB is
        deallocated in System.Tasking.Stages.

        * s-taskin.ads (Initialize_ATCB): T converted into a in parameter in
        order to allow ATCBs to be preallocated.

        * s-tassta.adb (Create_Task): In case of error the ATCB is deallocated
        here. It was previously done in Initialize_ATCB.

        * rtsfind.ads: Make the Ada_Task_Control_Block visible.

        * exp_ch9.adb: Preallocate the Ada_Task_Control_Block when using the
        Restricted run time.

        * exp_ch3.adb: When using the Restricted run time, pass the
        preallocated Ada_Task_Control_Block when creating a task.

2004-07-15  Ed Schonberg  <schonberg@gnat.com>

        * sem_util.adb (Normalize_Actuals): If there are no actuals on a
        function call that is itself an actual in an enclosing call, diagnose
        problem here rather than assuming that resolution will catch it.

        * sem_ch7.adb (Analyze_Package_Specification): If the specification is
        the local copy of a generic unit for a formal package, and the generic
        is a child unit, install private part of ancestors before compiling
        private part of spec.

        * sem_cat.adb (Validate_Categorization_Dependency): Simplify code to
        use scope entities rather than tree structures, to handle properly
        parent units that are instances rewritten as bodies for inlining
        purposes.

        * sem_ch10.adb (Get_Parent_Entity, Implicit_With_On_Parent,
        Remove_Parents): Handle properly a parent unit that is an
        instantiation, when the unit has been rewritten as a body for inlining
        purposes.

        * par.adb (Goto_List): Global variable to collect goto statements in a
        given unit, for use in detecting natural loops.

        * par-ch5.adb (P_Goto_Statement): Add goto to global Goto_List, for
        use in detecting natural loops.

        * par-labl.adb (Find_Natural_Loops): Recognize loops create by
        backwards goto's, and rewrite as a infinite loop, to improve locality
        of temporaries.

        * exp_util.adb (Force_Evaluation): Recognize a left-hand side
        subcomponent that includes an indexed reference, to prevent the
        generation of copies that would miscompile the desired assignment
        statement.
        (Build_Task_Image_Decls): Add a numeric suffix to
        generated name for string variable, to avoid spurious conflicts with
        the name of the type of a single protected object.

        * exp_ch4.adb (Expand_Array_Equality): If indices are distinct, use a
        loop with an explicit exit statement, to avoid generating an
        out-of-range value with 'Succ leading to spurious constraint_errors
        when compiling with -gnatVo.

2004-07-15  Thomas Quinot  <quinot@act-europe.fr>

        * sem_ch4.adb (Analyze_Slice): Always call Analyze on the prefix: it
        might not be analyzed yet, even if its Etype is already set (case of an
        unchecked conversion built using Unchecked_Convert_To, for example).
        If the prefix has already been analyzed, this will be a nop anyway.

        * exp_ch5.adb (Make_Tag_Ctrl_Assignment): For an assignment of a
        controller type, or an assignment of a record type with controlled
        components, copy only user data, and leave the finalization chain
        pointers untouched.

2004-07-15  Vincent Celier  <celier@gnat.com>

        * make.adb (Collect_Arguments): Improve error message when attempting
        to compile a source not part of any project, when -x is not used.

        * prj.ads: (Defined_Variable_Kind): New subtype

        * prj-attr.adb (Register_New_Package): Two new procedures to register
        a package with or without its attributes.
        (Register_New_Attribute): Mew procedure to register a new attribute in a
        package.
        New attribute oriented subprograms: Attribute_Node_Id_Of,
        Attribute_Kind_Of, Set_Attribute_Kind_Of, Attribute_Name_Of,
        Variable_Kind_Of, Set_Variable_Kind_Of, Optional_Index_Of,
        Next_Attribute.
        New package oriented subprograms: Package_Node_Id_Of,
        Add_Unknown_Package, First_Attribute_Of, Add_Attribute.

        * prj-attr.ads (Attribute_Node_Id): Now a private, self initialized
        type.
        (Package_Node_Id): Now a private, self initialized type
        (Register_New_Package): New procedure to register a package with its
        attributes.
        New attribute oriented subprograms: Attribute_Node_Id_Of,
        Attribute_Kind_Of, Set_Attribute_Kind_Of, Attribute_Name_Of,
        Variable_Kind_Of, Set_Variable_Kind_Of, Optional_Index_Of,
        Next_Attribute.
        New package oriented subprograms: Package_Node_Id_Of,
        Add_Unknown_Package, First_Attribute_Of, Add_Attribute.

        * prj-dect.adb (Parse_Attribute_Declaration,
        Parse_Package_Declaration): Adapt to new spec of Prj.Attr.

        * prj-makr.adb (Make): Parse existing project file before creating
        other files. Fail if there was an error during parsing.

        * prj-proc.adb (Add_Attributes, Process_Declarative_Items): Adapt to
        new spec of Prj.Attr.

        * prj-strt.adb (Attribute_Reference, Parse_Variable_Reference): Adapt
        to new spec of Prj.Attr.

2004-07-15  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * utils2.c: Fix typo in comment.

2004-07-14  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (add_decl_expr): Clear TREE_READONLY if clear DECL_INITIAL.
        * utils.c (unchecked_convert): Don't do two VIEW_CONVERT_EXPRs.

2004-07-14  Andreas Schwab  <schwab@suse.de>

        * trans.c (gnat_init_stmt_group): Remove duplicate definition.

2004-07-13  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c: (gnat_to_gnu_entity, object case): Convert initializer to
        object type.
        (gnat_to_gnu_entity, case E_Record_Subtype): Properly set
        TYPE_STUB_DECL.

        * misc.c (gnat_types_compatible_p): New function.
        (LANG_HOOKS_TYPES_COMPATIBLE_P): New hook, to use it.
        (LANG_HOOKS_TYPE_MAX_SIZE, gnat_type_max_size): New.

        * trans.c (gigi): Move processing of main N_Compilation_Unit here.
        (gnat_to_gnu, case N_Compilation_Unit): Just handle nested case here.
        (add_stmt): Force walking of sizes and DECL_INITIAL for DECL_EXPR.
        (mark_visited): Don't mark dummy type.
        (tree_transform <N_Procedure_Call_Statement>): Unless this is an In
        parameter, we must remove any LJM building from GNU_NAME.
        (gnat_to_gnu, case N_String_Literal): Fill in indices in CONSTRUCTOR.
        (pos_to_constructor): Use int_const_binop.
        (gnat_to_gnu, case N_Identifier): Don't reference DECL_INITIAL of
        PARM_DECL.

        * utils.c (gnat_init_decl_processing): Don't make two "void" decls.
        (gnat_pushlevel): Set TREE_USE on BLOCK node.
        (gnat_install_builtins): Add __builtin_memset.

2004-07-13  Olivier Hainque  <hainque@act-europe.fr>

        * decl.c (gnat_to_gnu_entity <E_Variable>): If we are making a pointer
        for a renaming, stabilize the initialization expression if we are at a
        local level.  At the local level, uses of the renaming may be performed
        by a direct dereference of the initializing expression, and we don't
        want possible variables there to be evaluated for every use.

        * trans.c (gnat_stabilize_reference, gnat_stabilize_reference_1):
        Propagate TREE_SIDE_EFFECTS and TREE_THIS_VOLATILE to avoid loosing
        them on the way.  Account for the fact that we may introduce side
        effects in the process.

2004-07-13  Richard Henderson  <rth@redhat.com>

        * misc.c (default_pass_by_ref): Use pass_by_reference.

2004-07-11  Joseph S. Myers  <jsm@polyomino.org.uk>

        * misc.c (LANG_HOOKS_CLEAR_BINDING_STACK, LANG_HOOKS_PUSHLEVEL,
        LANG_HOOKS_POPLEVEL, LANG_HOOKS_SET_BLOCK): Remove.

2004-07-08  Richard Henderson  <rth@redhat.com>

        * trans.c (gnat_to_gnu <N_Handled_Sequence_Of_Statements>): Update
        commentary.

2004-07-06  Vincent Celier  <celier@gnat.com>

        * vms_conv.ads: Minor reformatting.
        Alphabetical order for enumerated values of type Command_Type, to have
        the command in alphabetical order for the usage.

        * vms_conv.adb (Process_Argument): Set Keep_Temporary_Files to True for
        the special qualifier /KEEP_TEMPORARY_FILES (minimum 6 characters).

        * gnat_ugn.texi: Document new switch -dn for the GNAT driver.

        * makegpr.adb (Global_Archive_Exists): New global Boolean variable
        (Add_Archive_Path): Only add the global archive if there is one.
        (Build_Global_Archive): Set Global_Archive_Exists depending if there is
        or not any object file to put in the global archive, and don't build
        a global archive if there is none.
        (X_Switches): New table
        (Compile_Link_With_Gnatmake): Pass to gnatmake the -X switches stored
        in the X_Switches table, if any.
        (Initialize): Make sure the X_Switches table is empty
        (Scan_Arg): Record -X switches in table X_Switches

        * opt.ads (Keep_Temporary_Files): New Boolean flag, defaulted to False.

        * make.adb: Minor comment fix

        * gnatname.adb (Gnatname): When not on VMS, and gnatname has been
        invoked with directory information, add the directory in front of the
        path.

        * gnatchop.adb (Gnatchop): When not on VMS, and gnatchop has been
        invoked with directory information, add the directory in front of the
        path.

        * gnatcmd.adb (Delete_Temp_Config_Files): Only delete temporary files
        when Keep_Temporary_Files is False.
        (GNATCmd): When not on VMS, and the GNAT driver has been invoked with
        directory information, add the directory in front of the path.
        When not on VMS, handle new switch -dn before the command to set
        Keep_Temporary_Files to True.
        (Non_VMS_Usage): Use lower case for the non VMS usage: this is valid
        everywhere.

        * gnatlink.adb (Gnatlink): When not on VMS, and gnatlink has been
        invoked with directory information, add the directory in front of the
        path.

2004-07-06  Thomas Quinot  <quinot@act-europe.fr>

        * snames.ads, snames.adb (Name_Stub): New name for the distributed
        systems annex.

        * rtsfind.ads: New RTE TC_Object, for DSA/PolyORB.
        New RTEs RAS_Proxy_Type and RAS_Proxy_Type_Access, for DSA.

        * g-socket.adb (To_Timeval): Fix incorrect conversion of
        Selector_Duration to Timeval for the case of 0.0.

        * exp_util.ads (Evolve_Or_Else): Fix overenthusiastic copy/paste of
        documentation from Evolve_And_Then.

2004-07-06  Jose Ruiz  <ruiz@act-europe.fr>

        * s-taprop-tru64.adb, s-taprop-os2.adb,
        s-taprop-mingw.adb, s-taprop-posix.adb: Update comment.

2004-07-06  Robert Dewar  <dewar@gnat.com>

        * s-osinte-hpux.ads, s-osinte-freebsd.ads,
        s-osinte-lynxos.ads, s-taprop-lynxos.adb, s-osinte-tru64.ads,
        s-osinte-aix.ads, s-osinte-irix.ads, s-taprop-irix.adb,
        s-interr-sigaction.adb, s-taprop-irix-athread.adb,
        s-osinte-hpux-dce.adb, s-taprop-hpux-dce.adb,
        s-taprop-linux.adb, s-taprop-dummy.adb, s-taprop-solaris.adb,
        s-interr-vms.adb, s-osinte-vms.ads, s-taprop-vms.adb,
        s-osinte-vxworks.ads, s-osprim-vxworks.adb, a-numaux-x86.adb,
        a-except.adb, a-exexpr.adb, a-intsig.adb, a-tags.adb,
        a-tags.ads, bindgen.ads, checks.adb, checks.adb,
        csets.ads, einfo.ads, einfo.ads, elists.adb, exp_ch4.adb,
        exp_ch7.adb, exp_dist.adb, exp_util.adb, freeze.adb,
        g-dynhta.adb, gnatmem.adb, g-regexp.adb, inline.adb,
        i-os2thr.ads, osint.adb, prj.adb, scng.adb, sem_cat.adb,
        sem_ch10.adb, sem_ch12.adb, sem_ch4.adb, sem_ch7.adb,
        sem_ch8.adb, sem_disp.adb, sem_prag.adb, sem_res.adb,
        sem_type.adb, sem_type.ads, sem_warn.adb, s-ficobl.ads,
        s-finimp.adb, s-htable.adb, sinfo.ads, sinput-l.ads,
        s-interr.adb, s-interr.ads, sprint.adb, s-tarest.adb,
        s-tasini.ads, s-taskin.ads, s-taskin.ads, uname.adb,
        vms_data.ads: Minor reformatting,
        Fix bad box comment format.

        * gnat_rm.texi: Fix minor grammatical error

        * sem_attr.adb, exp_attr.adb: New attribute Has_Access_Values

        * sem_util.ads, sem_util.adb (Requires_Transient_Scope): Allow many
        more cases of discriminated records to be recognized as not needing a
        secondary stack.
        (Has_Access_Values): New function.

        * snames.h, snames.adb, snames.ads: New attribute Has_Access_Values

        * cstand.adb, layout.ads, layout.adb, sem_ch13.ads: Change name
        Set_Prim_Alignment to Set_Elem_Alignment (more accurate correspondence
        with LRM terminology).
        Change terminology in comments primitive type => elementary type.

2004-07-06  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15602
        * sem_ch7.adb (Unit_Requires_Body): For a generic package, the formal
        parameters do not impose any requirements on the presence of a body.

2004-07-06  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15593
        * sem_ch12.adb (Analyze_Package_Instantiation): If the generic is not a
        compilation unit and is in an open scope at the point of instantiation,
        assume that a body may be present later.

2004-07-06  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch13.adb (Analyze_Attribute_Definition_Clause, case 'Size):
        Improve error message when specified size is not supported.

        * sem_ch6.adb (Maybe_Primitive_Operation): A library-level subprogram
        is never a primitive operation.

2004-07-05  Andreas Schwab  <schwab@suse.de>

        * ada-tree.h (TYPE_LEFT_JUSTIFIED_MODULAR_P): Use
        RECORD_OR_UNION_CHECK.
        (TYPE_CONTAINS_TEMPLATE_P): Likewise.

2004-07-04  Kelley Cook  <kcook@gcc.gnu.org>

        * Make-lang.in (doc/gnat_ugn_unw.texi): Eliminate explicit
        dependency on xgnatugn, instead build it via a submake.
        (ADA_INFOFILES): Add doc/gnat_ugn_unw.texi.

2004-07-04  Richard Henderson  <rth@redhat.com>

        * utils2.c (gnat_mark_addressable): Don't put_var_into_stack.

2004-07-01  Richard Henderson  <rth@redhat.com>

        * trans.c (gnat_stabilize_reference): Don't handle RTL_EXPR.
        * utils.c (max_size): Likewise.

2004-06-28  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c: Remove calls to add_decl_expr, pushdecl, rest_of_compilation,
        and rest_of_type_compilation; add arg to create_*_decl.
        (annotate_decl_with_node): Deleted.
        (gnat_to_gnu_entity, case E_Array_Type): Set location of fields.
        * gigi.h (get_decls, block_has_vars, pushdecl): Deleted.
        (get_current_block_context, gnat_pushdecl): New declarations.
        (gnat_init_stmt_group): Likewise.
        (create_var_decl, create_type_decl, create_subprog_decl): Add new arg.
        * misc.c (LANG_HOOKS_CLEAR_BINDING_STACK): Deleted.
        (LANG_HOOKS_GETDECLS, LANG_HOOKS_PUSHDECL): Deleted.
        (gnat_init): Call gnat_init_stmt_group.
        * trans.c (global_stmt_group, gnu_elab_proc_decl): New variables.
        (gnu_pending_elaboration_list): Deleted.
        (mark_visited, mark_unvisited, gnat_init_stmt_group): New functions.
        (gigi): Rearrange initialization calls and move some to last above.
        (gnat_to_gnu): If statement and not in procedure, go into elab proc.
        Delete calls to add_decl_expr; add arg to create_*_decl.
        (gnat_to_gnu, case N_Loop): Recalculate side effects on COND_EXPR.
        (gnat_to_gnu, case N_Subprogram_Body): Move some code to
        begin_subprog_body and call it.
        Don't push and pop ggc context.
        (gnat_to_gnu, case N_Compilation_Unit): Rework to support elab proc.
        (add_stmt): Remove handling of DECL_EXPR from here.
        If not in function, mark visited.
        (add_decl_expr): Put global at top level.
        Check for cases of DECL_INITIAL we have to handle here.
        (process_type): Add extra arg to create_type_decl.
        (build_unit_elab): Rework to just gimplify.
        * utils.c (pending_elaborations, elist_stack, getdecls): Deleted.
        (block_has_vars, mark_visited, add_pending_elaborations): Likewise.
        (get_pending_elaborations, pending_elaborations_p): Likewise.
        (push_pending_elaborations, pop_pending_elaborations): Likewise.
        (get_elaboration_location, insert_elaboration_list): Likewise.
        (gnat_binding_level): Renamed from ada_binding_level.
        (init_gnat_to_gnu): Don't clear pending_elaborations.
        (global_bindings_p): Treat as global if no current_binding_level.
        (set_current_block_context): New function.
        (gnat_pushdecl): Renamed from pushdecl; major rework.
        All callers changed.
        (create_type_decl, create_var_decl, create_subprog_decl): Add new arg.
        (finish_record_type): Call call pushdecl for stub decl.
        (function_nesting_depth): Deleted.
        (begin_subprog_body): Delete obsolete code.
        * utils2.c (build_call_alloc_dealloc): Add new arg to create_var_decl.

2004-06-28  Robert Dewar  <dewar@gnat.com>

        * mlib-tgt-tru64.adb, mlib-tgt-aix.adb, mlib-tgt-irix.adb,
        mlib-tgt-irix.adb, mlib-tgt-hpux.adb, mlib-tgt-linux.adb,
        mlib-tgt-linux.adb, mlib-tgt-solaris.adb, mlib-tgt-solaris.adb,
        mlib-tgt-vms-alpha.adb, mlib-tgt-vms-alpha.adb, mlib-tgt-vms-ia64.adb,
        a-strmap.adb, a-strmap.ads, clean.adb: Minor reformatting

        * exp_util.adb (Is_Possibly_Unaligned_Slice): Completely rewritten, to
        deal with problem of inefficient slices on machines with strict
        alignment, when the slice is a component of a composite.

        * checks.adb (Apply_Array_Size_Check): Do not special case 64-bit
        machines, we need the check there as well.

2004-06-28  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch5.adb (Expand_Assign_Array): Use correct condition to
        determine safe copying direction for overlapping slice assignments
        when component is controlled.

        * sem_ch12.adb (Instantiate_Formal_Package): Implicit operations of a
        formal derived type in the actual for a formal package are visible in
        the enclosing instance.

2004-06-28  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15600
        * sem_util.adb (Trace_Components): Diagnose properly an illegal
        circularity involving a private type whose completion includes a
        self-referential component.
        (Enter_Name): Use Is_Inherited_Operation to distinguish a source
        renaming or an instantiation from an implicit derived operation.

2004-06-28  Pascal Obry  <obry@gnat.com>

        * mlib-tgt-mingw.adb: (Library_Exists_For): Remove "lib" prefix from
        DLL.
        (Library_File_Name_For): Idem.

2004-06-28  Matthew Gingell  <gingell@gnat.com>

        * g-traceb.ads: Add explanatory note on the format of addresses
        expected by addr2line.

2004-06-28  Jerome Guitton  <guitton@act-europe.fr>

        * Makefile.in: Force debugging information on s-tasdeb.adb,
        a-except.adb and s-assert.adb needed by the debugger.

2004-06-28  Vincent Celier  <celier@gnat.com>

        * make.adb (Collect_Arguments_And_Compile): Change Flag1 to
        Need_To_Build_Lib.
        (Gnatmake): Ditto.

        * mlib-prj.adb (Check_Library): Replace Flag1 with Need_To_Build_Lib

        * prj.adb: Minor reformatting
        (Project_Empty): Change Flag1 to Need_To_Build_Lib. Remove Flag2.

        * prj.ads: Comment updates
        Minor reformatting
        (Project_Data): Change Flag1 to Need_To_Build_Lib.
        Remove Flag2: not used.

        * prj-dect.adb (Parse_Declarative_Items): Accept "null" as a
        declaration.

        * gnat_ugn.texi: Put a "null;" declaration in one project file example

        * gnat_rm.texi: Document Empty declarations "null;".

        * makegpr.adb (Compile_Link_With_Gnatmake): Put the global archives in
        front of the linker options.
        (Link_Foreign): Put the global archives and the libraries in front of
        the linker options.

2004-06-28  Javier Miranda  <miranda@gnat.com>

        * rtsfind.adb: (Get_Unit_Name): Fix typo in comment
        (RTU_Loaded): Code cleanup
        (Set_RTU_Loaded): New procedure to register as *loaded* explicitly
        withed predefined units.

        * rtsfind.ads (Set_RTU_Loaded): New procedure to register as *loaded*
        explicitly withed predefined units.
        Fix typo in comment

        * sem_ch10.adb (Analyze_Compilation_Unit): Register as *loaded*
        explicitly withed predefined units.

2004-06-26  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * ada-tree.def (DECL_STMT): Deleted.
        * ada-tree.h (IS_ADA_STMT): Now test against STMT_STMT.
        (DECL_STMT_VAR): Deleted.
        * decl.c: add_decl_stmt now add_decl_expr.
        * gigi.h: Likewise.
        * trans.c: Likewise.
        (gnat_gimplify_type_sizes, gnat_gimplify_one_sizepos): Deleted.
        (gnat_to_gnu, case N_Subprogram_Body): Set cfun->function_end_locus.
        (add_stmt): Only handle padded type here.
        (add_stmt_with_node): Allow gnat_node to not be present.
        (gnat_gimplify_stmt, case USE_STMT): Set *STMT_P to null.
        (gnat_gimplify_stmt, case DECL_STMT): Deleted.
        (gnat_stabilize_reference_1): If COMPONENT_REF of fat pointer,
        make a SAVE_EXPR for the entire fat pointer.
        * utils.c (pushdecl): Walk a DECL_EXPR in global case.
        (create_index_type): Make a DECL_EXPR.
        (end_subprog_body): Don't call allocate_struct_function here but
        do clear cfun.

2004-06-25  Pascal Obry  <obry@gnat.com>

        * makegpr.adb (Build_Library): Remove parameter Lib_Address and
        Relocatable from Build_Dynamic_Library call.

        * gnat_ugn.texi: Change documentation about Library_Kind. Dynamic and
        Relocatable are now synonym.

        * Makefile.in: Use s-parame-mingw.adb on MingW platform.

        * mlib-prj.adb (Build_Library): Remove DLL_Address constant definition.
        Remove parameter Lib_Address and Relocatable from Build_Dynamic_Library
        call.

        * mlib-tgt.ads, mlib-tgt.adb (Build_Dynamic_Library): Remove parameter
        Lib_Address and Relocatable.
        (Default_DLL_Address): Removed.

        * mlib-tgt-tru64.adb, mlib-tgt-aix.adb, mlib-tgt-irix.adb,
        mlib-tgt-hpux.adb, mlib-tgt-linux.adb, mlib-tgt-solaris.adb,
        mlib-tgt-vms-alpha.adb, mlib-tgt-vms-ia64.adb, mlib-tgt-vxworks.adb:
        (Build_Dynamic_Library): Remove parameter Lib_Address and Relocatable.
        (Default_DLL_Address): Removed.

        * mlib-tgt-mingw.adb: Ditto.
        (Build_Dynamic_Library): Do not add "lib" prefix to the DLL name.

        * s-taprop-mingw.adb (Create_Task): Use Adjust_Storage_Size to compute
        the initial thread stack size.

        * a-strmap.ads: Move package L to private part as it is not used in
        the spec. Found while reading code.

2004-06-25  Olivier Hainque  <hainque@act-europe.fr>

        * tracebak.c: Introduce support for a GCC infrastructure based
        implementation of __gnat_backtrace.

        * raise.c: Don't rely on a C mapping of the GNAT_GCC_Exception record
        any more. Use accessors instead. This eases maintenance and relaxes
        some alignment constraints.
        (_GNAT_Exception structure): Remove the Ada specific fields
        (EID_For, Adjust_N_Cleanups_For): New accessors, exported by
        a-exexpr.adb.
        (is_handled_by, __gnat_eh_personality): Replace component references to
        exception structure by use of the new accessors.

        * init.c (__gnat_initialize): Adjust comments to match the just
        reverted meaning of the -static link-time option.

        * adaint.c (convert_addresses): Arrange not to define a stub for
        mips-irix any more, as we now want to rely on a real version from a
        recent libaddr2line.

        * a-exexpr.adb: Provide new accessors to a GNAT_GCC occurrence, so that
        the personality routine can use them and not have to rely on a C
        counterpart of the record anymore. This simplifies maintenance and
        relaxes the constraint of having Standard'Maximum_Alignment match
        BIGGEST_ALIGNMENT.
        Update comments, and add a section on the common header alignment issue.

2004-06-25  Geert Bosch  <bosch@gnat.com>

        * a-ngelfu.adb (Tanh): Use full 20 digit precision for constants in
        polynomial approximation. Fixes inconsistency with Cody/Waite algorithm.

2004-06-25  Robert Dewar  <dewar@gnat.com>

        * gnat_rm.texi: Fix section on component clauses to indicate that the
        restriction on byte boundary placement still applies for bit packed
        arrays.
        Add comment on stack usage from Initialize_Scalars

        * gnat_ugn.texi: Add documentation for -gnatyLnnn

        * stylesw.ads, stylesw.adb: Implement new -gnatyLnnn option for
        limiting nesting level.

        * usage.adb: Add line for -gnatyLnnn switch

        * g-debpoo.ads, xtreeprs.adb, sinput.ads, sem_ch13.ads,
        sem_ch13.adb, exp_aggr.adb: Minor reformatting

        * sem_prag.adb (Process_Atomic_Shared_Volatile): Set Is_Atomic on base
        type as well as on the subtype. This corrects a problem in freeze in
        setting alignments of atomic types.

        * sem_eval.ads: Minor comment typo fixed

        * par-util.adb (Push_Scope_Stack): Check for violation of max nesting
        level.  Minor reformatting.

        * fname.adb (Is_Predefined_File_Name): Require a letter after the
        minus sign. This means that file names like a--b.adb will not be
        considered predefined.

        * freeze.adb: Propagate new flag Must_Be_On_Byte_Boundary to containing
        record Test new flag and give diagnostic for bad component clause.
        (Freeze_Entity): Set alignment of array from component alignment in
        cases where this is safe to do.

        * exp_pakd.adb: Set new flag Must_Be_On_Byte_Boundary for large packed
        arrays.

        * cstand.adb: (Create_Standard): Set alignment of String to 1

        * einfo.ads, einfo.adb: Introduce new flag Must_Be_On_Byte_Boundary

        * exp_ch4.adb (Expand_Array_Equality): Improve efficiency of generated
        code in the common constrained array cases.

        * a-storio.adb: Change implementation to avoid possible alignment
        problems on machines requiring strict alignment (data should be moved
        as type Buffer, not type Elmt).

        * checks.adb (Apply_Array_Size_Check): Improve these checks by
        killing the overflow checks which we really do not need (64-bits is
        enough).

2004-06-25  Vincent Celier  <celier@gnat.com>

        * makegpr.adb (Is_Included_In_Global_Archive): New Boolean function
        (Add_Archives.Recursive_Add_Archives): Call Add_Archive_Path
        inconditionally for the main project.
        (Recursive_Add_Archives.Add_Archive_Path): New procedure
        (Link_Executables.Check_Time_Stamps): New procedure
        (Link_Executables.Link_Foreign): New procedure
        Changes made to reduce nesting level of this package
        (Check): New procedure
        (Add_Switches): When not in quiet output, check that a switch is not
        the concatenation of several valid switches. If it is, issue a warning.
        (Build_Global_Archive): If the global archive is rebuilt, linking need
        to be done.
        (Compile_Sources): Rebuilding a library archive does not imply
        rebuilding the global archive.
        (Build_Global_Archive): New procedure
        (Build_Library): New name for Build_Archive, now only for library
        project
        (Check_Archive_Builder): New procedure
        (Create_Global_Archive_Dependency_File): New procedure
        (Gprmake): Call Build_Global_Archive before linking
        * makegpr.adb: Use Other_Sources_Present instead of Sources_Present
        throughout.
        (Scan_Arg): Display the Copyright notice when -v is used

        * gnat_ugn.texi: Document new switch -files= (VMS qualifier /FILES=)
        for gnatls.

        * vms_data.ads: Add qualifier /MAX_NESTING=nnn (-gnatyLnnn) for GNAT
        COMPILE.
        Add new GNAT LIST qualifier /FILES=
        Added qualifier /DIRECTORY= to GNAT METRIC
        Added qualifier /FILES= to GNAT METRIC
        Added qualifier /FILES to GNAT PRETTY

        * switch.adb (Is_Front_End_Switch): Refine the test for --RTS or -fRTS,
        to take into account both versions of the switch.

        * switch-c.adb (Scan_Front_End_Switches): New switch -gnatez. Should
        always be the last switch to the gcc driver. Disable switch storing so
        that switches automatically added by the gcc driver are not put in the
        ALI file.

        * prj.adb (Project_Empty): Take into account changes in components of
        Project_Data.

        * prj.ads (Languages_Processed): New enumaration value All_Languages.

        * prj.ads (Project_Data): Remove component Lib_Elaboration: never
        used. Split Boolean component Ada_Sources_Present in two Boolean
        components Ada_Sources_Present and Other_Sources_Present.
        Minor reformatting

        * prj-env.adb (For_All_Source_Dirs.Add): Use Ada_Sources_Present
        instead of Sources_Present.
        (Set_Ada_Paths.Add.Recursive_Add): Ditto

        * prj-nmsc.adb: Minor reformatting
        (Check_Ada_Naming_Scheme): New name of procedure Check_Naming_Scheme
        (Check_Ada_Naming_Scheme_Validity): New name of previous procedure
        Check_Ada_Naming_Scheme.
        Change Sources_Present to Ada_Sources_Present or Other_Sources_Present
        throughout.

        * prj-part.adb (Post_Parse_Context_Clause): New Boolean parameter
        In_Limited.
        Make sure that all cycles where there is at least one "limited with"
        are detected.
        (Parse_Single_Project): New Boolean parameter In_Limited

        * prj-proc.adb (Recursive_Check): When Process_Languages is
        All_Languages, call first Prj.Nmsc.Ada_Check, then
        Prj.Nmsc.Other_Languages_Check.

        * prj-proc.adb (Process): Use Ada_Sources_Present or
        Other_Sources_Present (instead of Sources_Present) depending on
        Process_Languages.

        * lang-specs.h: Keep -g and -m switches in the same order, and as the
        last switches.

        * lib.adb (Switch_Storing_Enabled): New global Boolean flag
        (Disable_Switch_Storing): New procedure. Set Switch_Storing_Enabled to
        False.
        (Store_Compilation_Switch): Do nothing if Switch_Storing_Enabled is
        False.

        * lib.ads (Disable_Switch_Storing): New procedure.

        * make.adb: Modifications to reduce nesting level of this package.
        (Check_Standard_Library): New procedure
        (Gnatmake.Check_Mains): New procedure
        (Gnatmake.Create_Binder_Mapping_File): New procedure
        (Compile_Sources.Compile): Add switch -gnatez as the last option
        (Display): Never display -gnatez

        * Makefile.generic:
        When using $(MAIN_OBJECT), always use $(OBJ_DIR)/$(MAIN_OBJECT)

        * gnatcmd.adb (Check_Project): New function
        (Process_Link): New procedure to reduce nesting depth
        (Check_Files): New procedure to reduce the nesting depth.
        For GNAT METRIC, include the inherited sources in extending projects.
        (GNATCmd): When GNAT LS is invoked with a project file and no files,
        add the list of files from the sources of the project file. If this list
        is too long, put it in a temp text files and use switch -files=
        (Delete_Temp_Config_Files): Delete the temp text file that contains
        a list of source for gnatpp or gnatmetric, if one has been created.
        (GNATCmd): For GNAT METRIC and GNAT PRETTY, if the number of sources
        in the project file is too large, create a temporary text file that
        list them and pass it to the tool with "-files=<temp text file>".
        (GNATCmd): For GNAT METRIC add "-d=<abject dir>" as the first switch

        * gnatlink.adb (Gnatlink): Do not compile with --RTS= when the
        generated file is in not in Ada.

        * gnatls.adb: Remove all parameters And_Save that are no longer used.
        (Scan_Ls_Arg): Add processing for -files=
        (Usage): Add line for -files=

        * g-os_lib.adb (On_Windows): New global constant Boolean flag
        (Normalize_Pathname): When on Windows and the path starts with a
        directory separator, make sure that the resulting path will start with
        a drive letter.

        * clean.adb (Clean_Archive): New procedure
        (Clean_Project): When there is non-Ada code, delete the global archive,
        the archive dependency files, the object files and their dependency
        files, if they exist.
        (Gnatclean): Call Prj.Pars.Parse for All_Languages, not for Ada only.

2004-06-25  Thomas Quinot  <quinot@act-europe.fr>

        * sinfo.ads: Fix typo in comment.

        * sem_dist.adb (Process_Remote_AST_Attribute): Simplify code that uses
        the TSS for remote access-to-subprogram types, since these TSS are
        always present once the type has been analyzed.
        (RAS_E_Dereference): Same.

        * sem_attr.adb (Analyze_Attribute): When analysis of an attribute
        reference raises Bad_Attribute, mark the reference as analyzed so the
        node (and any children resulting from rewrites that could have occurred
        during the analysis that ultimately failed) is not analyzed again.

        * exp_ch7.ads (Find_Final_List): Fix misaligned comment.

        * exp_dist.adb: Minor comment fix.

        * exp_ch4.adb (Expand_N_Allocator): For an allocator whose expected
        type is an anonymous access type, no unchecked deallocation of the
        allocated object can occur. If the object is controlled, attach it with
        a count of 1. This allows attachment to the Global_Final_List, if
        no other relevant list is available.
        (Get_Allocator_Final_List): For an anonymous access type that is
        the type of a discriminant or record component, the corresponding
        finalisation list is the one of the scope of the type.

2004-06-25  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch3.adb (Replace_Type): When computing the signature of an
        inherited subprogram, use the first subtype if the derived type
        declaration has no constraint.

        * exp_ch6.adb (Add_Call_By_Copy_Code): Check that formal is an array
        before applying previous optimization. Minor code cleanup.

        * exp_util.adb (Is_Possibly_Unaligned_Slice): If the component is
        placed at the beginning of an unpacked record without explicit
        alignment, a slice of it will be aligned and does not need a copy when
        used as an actual.

2004-06-25  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15591
        PR ada/15592
        * sem_ch8.adb (Attribute_Renaming): Reject renaming if the attribute
        reference is written with expressions mimicking parameters.

2004-06-25  Hristian Kirtchev  <kirtchev@gnat.com>

        PR ada/15589
        * sem_ch3.adb (Build_Derived_Record_Type): Add additional check to
        STEP 2a. The constraints of a full type declaration of a derived record
        type are checked for conformance with those declared in the
        corresponding private extension declaration. The message
        "not conformant with previous declaration" is emitted if an error is
        detected.

2004-06-25  Vasiliy Fofanov  <fofanov@act-europe.fr>

        * g-traceb.ads: Document the need for -E binder switch in the spec.

        * g-trasym.ads: Document the need for -E binder switch in the spec.

2004-06-25  Jose Ruiz  <ruiz@act-europe.fr>

        * sem_prag.adb: Add handling of pragma Detect_Blocking.

        * snames.h, snames.ads, snames.adb: Add entry for pragma
        Detect_Blocking.

        * s-rident.ads: Change reference to pragma Detect_Blocking.

        * targparm.ads, targparm.adb: Allow pragma Detect_Blocking in
        system.ads.

        * opt.ads (Detect_Blocking): New Boolean variable (defaulted to False)
        to indicate whether pragma Detect_Blocking is active.

        * par-prag.adb: Add entry for pragma Detect_Blocking.

        * rtsfind.adb (RTU_Loaded): Fix the temporary kludge to get past bug
        of not handling WITH.
        Note that this replaces the previous update which was incorrect.

2004-06-25  Javier Miranda  <miranda@gnat.com>

        * sem_ch10.adb (Re_Install_Use_Clauses): Force the installation of the
        use-clauses to have a clean environment.

        * sem_ch8.adb (Install_Use_Clauses): Addition of a new formal to force
        the installation of the use-clauses to stablish a clean environment in
        case of compilation of a separate unit; otherwise the call to
        use_one_package is protected by the barrier Applicable_Use.

        * sem_ch8.ads (Install_Use_Clauses): Addition of a new formal to force
        the installation of the use-clauses to stablish a clean environment in
        case of compilation of a separate unit.
        (End_Use_Clauses): Minor comment cleanup.

2004-06-25  Sergey Rybin  <rybin@act-europe.fr>

        * gnat_ugn.texi: Add description of the gnatpp 'files' switch

2004-06-23  Richard Henderson  <rth@redhat.com>

        * trans.c (gnat_gimplify_stmt): Update gimplify_type_sizes call.

2004-06-20  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (elaborate_expression, elaborate_expression_1): Arguments
        now bool instead of int.
        (gnat_to_gnu_entity, elaborate_expression_1): New arg to COMPONENT_REF.
        * trans.c (gnu_switch_label_stack): New function.
        (gnat_to_gnu, N_Object_Renaming_Declaration): Result is what the
        elaboration of renamed entity returns.
        (gnat_to_gnu, case N_Case_Statement): Add branches to end label.
        (add_decl_stmt): Don't add TYPE_DECL for UNCONSTRAINED_ARRAY_TYPE.
        (gnat_gimplify_stmt): Use alloc_stmt_list, not build_empty_stmt.
        (gnat_gimplify_stmt, case DECL_STMT): gimplify DECL_SIZE and
        DECL_SIZE_UNIT and simplify variable-sized case.
        (gnat_gimplify_type_sizes, gnat_gimplify_one_sizepos): Deleted.
        Callers changes to call gimplify_type_sizes and gimplify_one_sizepos.
        (gnat_stabilize_reference): Add arg to COMPONENT_REF.
        (build_unit_elab): Disable for now.
        * utils.c (mark_visited): New function.
        (pushdecl): Walk tree to call it for global decl.
        (update_pointer_to): Update all variants of pointer and ref types.
        Add arg to COMPONENT_REF.
        (convert): Likewise.
        Move check for converting between variants lower down.
        * utils2.c (build_simple_component_ref): Add arg to COMPONENT_REF.
        (build_allocator): Don't force type of MODIFY_EXPR.
        (gnat_mark_addressable, case VAR_DECL): Unconditionally call
        put_var_into_stack.

2004-06-14  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * ada-tree.def (LOOP_STMT, EXIT_STMT): Update documentation.
        * ada-tree.h (EXIT_STMT_LABEL): Renamed from EXIT_STMT_LOOP.
        * decl.c (gnat_to_gnu_entity): Also set force_global for imported
        subprograms.
        * trans.c (gnu_loop_label_stack): Renamed from gnu_loop_stmt_stack;
        all callers changed.
        (gnat_to_gnu, case N_Loop_Statement, case N_Exit_Statement): Change
        the way that EXIT_STMT finds the loop label.
        (gnat_gimplify_stmt, case LOOP_STMT, EXIT_STMT): Likewise.
        (gnat_gimplify_stmt, case DECL_STMT): Handle variable-sized decls here.
        (add_stmt): Use annotate_with_locus insted of setting directly.
        (pos_to_construct): Set TREE_PURPOSE of each entry to index.
        (gnat_stabilize_reference, case ARRAY_RANGE_REF): Merge with ARRAY_REF.
        * utils.c (gnat_install_builtins): Install __builtin_memcmp.
        (build_vms_descriptor): Add extra args to ARRAY_REF.
        (convert): Use VIEW_CONVERT_EXPR between aggregate types.
        * utils2.c (gnat_truthvalue_conversion, case INTEGER_CST, REAL_CST):
        New cases.
        (build_binary_op): Don't make explicit CONVERT_EXPR.
        Add extra rgs to ARRAY_REF.

2004-06-14  Pascal Obry  <obry@gnat.com>

        * gnat_ugn.texi: Document relocatable vs. dynamic Library_Kind on
        Windows.  Fix minor typo.

        * mlib-tgt-mingw.adb: New implementation using the GCC -shared option
        which is now supported on Windows. With this implementation using the
        Library Project feature is no different on Windows than on UNIX.

2004-06-14  Vincent Celier  <celier@gnat.com>

        * makegpr.adb (Compile_Sources): Nothing to do when there are no
        non-Ada sources.

        * mlib-tgt-vxworks.adb (Library_Exists_For): Remove incorrect comment

        * prj-part.adb (Parse_Single_Project): When a duplicate project name is
        found, show the project name and the path of the previously parsed
        project file.

2004-06-14  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch6.adb (Add_Call_By_Copy_Code): For an out-parameter that is an
        array, avoid copying the actual before the call.

2004-06-14  Thomas Quinot  <quinot@act-europe.fr>

        * g-debpoo.adb: Remove alignment assumptions from GNAT.Debug_Pools.
        Instead, allocate memory on worst-case alignment assumptions, and then
        return an aligned address within the allocated zone.

2004-06-14  Robert Dewar  <dewar@gnat.com>

        * bindgen.adb (Gen_Adainit_Ada): Do not generate external references to
        elab entities in predefined units in No_Run_Time_Mode.
        (Gen_Adainit_C): Same fix
        (Gen_Elab_Calls_Ada): Do not generate calls to elaborate predefined
        units in No_Run_Time_Mode
        (Gen_Elab_Calls_C): Same fix

        * symbols-vms-alpha.adb: Minor reformatting

        * g-debpoo.ads: Minor reformatting

        * lib.adb (In_Same_Extended_Unit): Version working on node id's

        * lib.ads (In_Same_Extended_Unit): Version working on node id's

        * lib-xref.adb: Minor cleanup, use new version of In_Same_Extended_Unit
        working on nodes.

        * make.adb: Minor reformatting

        * par-ch12.adb: Minor reformatting

        * par-prag.adb: Add dummy entry for pragma Profile_Warnings

        * prj-strt.adb: Minor reformatting

        * restrict.ads, restrict.adb: Redo handling of profile restrictions to
        be more general.

        * sem_attr.adb: Minor reformatting

        * sem_ch7.adb: Minor reformatting

        * sem_elab.adb (Check_A_Call): Deal with problem of calling init proc
        for type in the same unit as the object declaration.

        * sem_prag.adb (Check_Arg_Is_External_Name): New procedure, allows
        static string expressions and not just string literals.
        Minor reformatting
        (Set_Warning): Reset restriction warning flag for restriction pragma
        Implement pragma Profile_Warnings
        Implement pragma Profile (Restricted)
        Give obolescent messages for old restrictions and pragmas

        * snames.h, snames.ads, snames.adb: Add new entry for pragma
        Profile_Warnings.

        * s-rident.ads: Add declarations for restrictions required by profile
        Restricted and profile Ravenscar.

        * targparm.ads, targparm.adb: Allow pragma Profile in system.ads

        * gnat_ugn.texi: Correct some missing entries in the list of GNAT
        configuration pragmas.

2004-06-11  Vincent Celier  <celier@gnat.com>

        * mlib-tgt-vms-alpha.adb (Build_Dynamic_Library): Issue switch -R to
        gnatsym, when symbol policy is Restricted.

        * mlib-tgt-vms-ia64.adb (Build_Dynamic_Library): Issue switch -R to
        gnatsym, when symbol policy is Restricted.

        * symbols-vms-alpha.adb (Initialize): When symbol policy is Restricted,
        read the symbol file.
        (Finalize): Fail in symbol policy Restricted if a symbol in the original
        symbol file is not in the object files. Do not create a new symbol file
        when symbol policy is Restricted.

        * gnatbind.adb (Gnatbind): Initialize Snames, because Snames is used
        in Scng.

        * gnatsym.adb (Parse_Vmd_Line): Process new switch -R for symbol policy
        Restricted.
        (Usage): Line for new switch -R

        * make.adb (Initialize): When the platform is not VMS, add the
        directory where gnatmake is invoked in the front of the path, if
        gnatmake is invoked with directory information.  Change the Scan_Args
        while loop to a for loop.
        (Recursive_Compute_Depth): Remove parameter Visited. Improve efficiency:
        if Depth is equal or greater than the proposed depth, there is nothing
        to do.
        (Initialize): Call Recursive_Compute_Depth with initial Depth equal to 1
        instead of 0.

        * prj.ads: Add new symbol policy Restricted.

        * prj-dect.adb (Parse_Case_Construction): Call End_Case_Construction
        with the new parameters Check_All_Labels and Case_Location.

        * prj-nmsc.adb (Ada_Check): Process new symbol policy Restricted
        (Library_Symbol_File needs to be defined).

        * prj-strt.adb (End_Case_Construction): New parameters Check_All_Labels
        and Case_Location If Check_All_Labels is True, check that all values of
        the string type are used, and output warning(s) if they are not.

        * prj-strt.ads (End_Case_Construction): New parameters Check_All_Labels
        and Case_Location.

        * gnat_ugn.texi: Reorder subclauses in menus "Switches for gcc"

        * gnat_ugn.texi: Update documentation about the library directory in
        Library Projects.

        * makegpr.adb (Display_Command): In verbose mode, also display the
        value of the CPATH env var, when the compiler is gcc.
        (Initialize): Change the Scan_Args while loop to a for loop
        (Compile_Individual_Sources): Change directory to object directory
        before compilations.

        * symbols.ads: New symbol policy Restricted.

2004-06-11  Olivier Hainque  <hainque@act-europe.fr>

        * a-except.adb (Raise_After_Setup family): Remove. The responsibility
        is now taken care of internally in the Exception_Propagation package
        and does not require clients assistance any more.

        * a-exexpr.adb (Is_Setup_And_Not_Propagated,
        Set_Setup_And_Not_Propagated, and Clear_Setup_And_Not_Propagated): New
        functions. Helpers to maintain a predicate required in the handling of
        occurrence transfer between tasks.
        This is now handled internally and does not require clients assistance
        for the setup/propagate separation anymore.
        (Setup_Exception, Propagate_Exception): Simplify the Private_Data
        allocation strategy, handle the Setup_And_Not_Propagated predicate and
        document.

        * s-taenca.adb (Check_Exception): Use raise_with_msg instead of
        raise_after_setup, now that everything is handled internally within the
        setup/propagation engine.

2004-06-11  Hristian Kirtchev  <kirtchev@gnat.com>

        * exp_ch6.adb (Expand_Inlined_Call): Add function Formal_Is_Used_Once.
        Add additional conditions for the case of an actual being a simple
        name or literal. Improve inlining by preventing the generation
        of temporaries with a short lifetime (one use).

2004-06-11  Hristian Kirtchev  <kirtchev@gnat.com>

        PR ada/15587
        * einfo.ads: Minor comment updates for Has_Completion and
        E_Constant list of flags.

        * sem_ch3.adb (Analyze_Object_Declaration): Full constant declarations
        and constant redeclarations now set the Has_Completion flag of their
        defining identifiers.

        * sem_ch7.adb (Analyze_Package_Spec): Add procedure
        Inspect_Deferred_Constant_Completion.
        Used to detect private deferred constants that have not been completed
        either by a constant redeclaration or pragma Import. Emits error message
        "constant declaration requires initialization expression".

        * sem_prag.adb (Process_Import_Or_Interface): An Import pragma now
        completes a deferred constant.

2004-06-11  Geert Bosch  <bosch@gnat.com>

        * eval_fat.adb (Decompose_Int): Fix rounding of negative numbers.

        * s-fatgen.adb (Gradual_Scaling): Correct off-by-one error in
        calculating exponent for scaling denormal numbers.
        (Leading_Part): Properly raise Constraint_Error for zero or negative
        Adjustment.
        (Remainder): Properly raise Constraint_Error for zero divisor.

2004-06-11  Thomas Quinot  <quinot@act-europe.fr>

        * sem_util.adb: Minor reformatting.

        * exp_ch2.adb (Expand_Entry_Parameter): Generate an explicit
        dereference when accessing the entry parameter record.
        (Check_Array_Type): Always check for possible implicit dereference.
        (maybe_implicit_dereference): Rename to check_no_implicit_derefence.
        Abort if a pointer is still present (denoting that an implicit
        dereference was left in the tree by the front-end).

        * sem_attr.adb (Expand_Entry_Parameter): Generate an explicit
        dereference when accessing the entry parameter record.
        (Check_Array_Type): Always check for possible implicit dereference.
        (maybe_implicit_dereference): Rename to check_no_implicit_derefence.
        Abort if a pointer is still present (denoting that an implicit
        dereference was left in the tree by the front-end).

2004-06-11  Emmanuel Briot  <briot@act-europe.fr>

        * g-debpoo.adb (Deallocate, Dereference): Add prefix "error:" to error
        message, like the compiler itself does. Easier to parse the output.

        * g-debpoo.ads: (Allocate, Deallocate, Dereference): Add comments.

        * gnat_ugn.texi (gnatxref, gnatfind): Clarify that source names should
        be base names, and not includes directories.

2004-06-11  Arnaud Charlet  <charlet@act-europe.fr>

        * Makefile.generic ($(EXEC)): Depend on $(OBJECTS), not $(OBJ_FILES),
        so that dependencies are properly taken into account by make.

2004-06-11  Arnaud Charlet  <charlet@act-europe.fr>

        PR ada/15622
        * s-unstyp.ads, s-maccod.ads, sem_ch8.adb, s-auxdec.ads,
        exp_intr.adb, s-auxdec-vms_64.ads: Fix typo: instrinsic -> intrinsic

2004-06-11  Jerome Guitton  <guitton@act-europe.fr>

        * Makefile.in (install-gnatlib): install target-specific run-time files.

        * Make-lang.in: Remove obsolete targets.

2004-06-11  Ed Schonberg  <schonberg@gnat.com>

        * par-ch12.adb (P_Generic): Add scope before analyzing subprogram
        specification, to catch misuses of program unit names.

        * sem_res.adb (Resolve_Type_Conversion): Do not emit warnings on
        superfluous conversions in an instance.

2004-06-11  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15403
        * sem_ch12.adb (Save_References): If operator node has been folded to
        enumeration literal, associated_node must be discarded.

2004-06-11  Jose Ruiz  <ruiz@act-europe.fr>

        * s-stchop-vxworks.adb: Add required pragma Convention to
        Task_Descriptor because it is updated by a C function.

2004-06-08  Arnaud Charlet  <charlet@act-europe.fr>

        PR ada/15568
        * Makefile.in: Remove target specific SO_OPT on IRIX

2004-06-07  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * ada-tree.def (TRANSFORM_EXPR, ALLOCATE_EXPR, USE_EXPR): Deleted.
        (GNAT_NOP_EXPR, GNAT_LOOP_ID, EXPR_STMT, NULL_STMT): Likewise.
        (BLOCK_STMT, IF_STMT, GOTO_STMT, LABEL_STMT, RETURN_STMT): Likewise.
        (ASM_STMT, BREAK_STMT, REGION_STMT,HANDLER_STMT): Likewise.
        (STMT_STMT, USE_STMT): New statement codes.
        (LOOP_STMT, EXIT_STMT): Make slight semantic changes.
        * ada-tree.h: Reflect above changes.
        (struct tree_loop_id): Deleted.
        (union lang_tree_node, struct lang_decl, struct lang_type):
        Now just contains a tree node; update macros using TYPE_LANG_SPECIFIC
        and DECL_LANGUAGE_SPECIFIC to reflect these changes.
        (DECL_INIT_BY_ASSIGN_P, TRE_LOOP_NODE_ID, TREE_SLOC): Deleted.
        (IS_ADA_STMT): New macro.
        * decl.c (annotate_decl_with_node): New function.
        (gnat_to_gnu_entity): Use it and Sloc_to_locus instead of set_lineno.
        (gnat_to_gnu_entity, case object): Remove call to expand CONVERT_EXPR.
        Call add_stmt_with_node to do needed assignments.
        Add call to update setjmp buffer directly, not via EXPR_STMT.
        (maybe_variable): Argment GNAT_NODE deleted.
        * gigi.h (maybe_variable): Likewise.
        (make_transform, add_stmt_with_node, set_block_for_group): New.
        (gnat_gimplify_expr, gnat_expand_body, Sloc_to_locus): Likewise.
        (set_block_jmpbuf_decl, get_block_jmpbuf_decl): Likewise.
        (discard_file_names, gnu_block_stack, gnat_to_code): Deleted.
        (set_lineno, set_lineno_from_sloc): Likewise.
        (record_code_position, insert_code_for): Likewise.
        (gnat_poplevel): Now returns void.
        (end_subprog_body): Now takes argument.
        * misc.c (cgraph.h, tree-inline.h): New includes.
        (gnat_tree_size, LANG_HOOKS_TREE_SIZE): Deleted.
        (gnat_post_options, LANG_HOOKS_POST_OPTIONS): New.
        (LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION): Likewise.
        (LANG_HOOKS_RTL_EXPAND_STMT, LANG_HOOKS_GIMPLIFY_EXPR): Likewise.
        (gnat_parse_file): Don't set immediate_size_expand.
        Call cgraph functions.
        (gnat_expand_expr): Remove most cases.
        (record_code_position, insert_code_for): Remove from here.
        * trans.c (toplev.h, tree-gimple.h): Now included.
        (discard_file_names): Deleted.
        (gnu_block_stack, gnu_block_stmt_node, gnu_block_stmt_free_list): Del.
        (first_nondeleted_insn, make_expr_stmt_from_rtl): Likewise.
        (struct stmt_group, current_stmt_group, stmt_group_free_list): New.
        (gnu_stack_free_list, record_cost_position, insert_code_for): Likewise.
        (add_cleanup, push_stack, gnat_gimplify_stmt, add_cleanup): Likewise.
        (gnat_gimplify_type_sizes, gnat_gimplify_one_sizepos): Likewise.
        (gnat_expand_body_1, gnat_gimplify_expr, annotate_with_node): Likewise.
        (set_block_for_group, add_stmt_list): Likewise.
        (start_stmt_group): Renamed from start_block_stmt.
        (end_stmt_group): Likewise, from end_block_stmt.
        (build_stmt_group): Likewise, from build_block_stmt, also add arg.
        (gigi): Don't set discard_file_names or call set_lineno.
        Disallow front end ZCX; call gnat_to_gnu, not gnat_to_code.
        (tree_transform): Deleted, now renamed to be gnat_to_gnu.
        Numerous changes throughout to reflect new names and complete
        function-at-a-time implementation.
        (gnat_expand_stmt): Delete or comment out all cases.
        (process_inlined_subprograms): Use add_stmt.
        (process_decls): Use gnat_to_gnu, not gnat_to_code, and don't
        call set_lineno; also remove unneeded block handling.
        (process_type): Remove unneeded block handling.
        (build_unit_elab): Remove calls to deleted functions.
        * utils.c (cgraph.h, tree-inline.h, tree-gimple.h): Now include.
        (tree-dump.h): Likewise.
        (struct ada_binding_level): Add field jmpbuf_decl.
        (gnat_define_builtin, gnat_install_builtins): New.
        (gnat_gimplify_function, gnat_finalize): Likewise.
        (gnat_poplevel): No longer return BLOCK, set it instead.
        Remove code dealing with nested functions.
        (gnat_init_decl_processing): Also set size_type_node.
        Call gnat_install_builtins.
        (create_var_decl): Don't set DECL_INIT_BY_ASSIGN.
        (create_subprog_decl): Change handling of inline_flag; set TREE_STATIC.
        Remove special-case for "main".
        (end_subprog_body): Add arg and rework for tree-ssa.
        (convert): Don't use GNAT_NOP_EXPR or look for TRANSFORM_EXPR.
        Add case for BOOLEAN_TYPE.
        * utils2.c (rtl.h): Now include.
        (build_call_raise): Test Debug_Flag_NN directly.
        (build_call_alloc_dealloc): Don't use local stack allocation for now.
        (gnat_mark_addressable, case GNAT_NOP_EXPR): Deleted.
        (gnat_mark_addressable, case VAR_DECL): Handle both early & late cases.

2004-06-07  Robert Dewar  <dewar@gnat.com>

        * a-direct.ads, einfo.ads: Minor comment updates

        * s-taprop-lynxos.adb, s-taprop-tru64.adb, s-taprop-irix.adb,
        s-taprop-irix-athread.adb, s-taprop-hpux-dce.adb, s-taprop-linux.adb,
        s-taprop-dummy.adb, s-taprop-os2.adb, s-taprop-solaris.adb,
        s-taprop-vms.adb, s-taprop-mingw.adb, s-taprop-vxworks.adb,
        s-taprop-posix.adb, s-taprop.ads, exp_dbug.adb: Minor reformatting.

        * s-interr-sigaction.adb: Remove unreferenced variable
        (Attached_Interrupts).  Minor reformatting.
        Avoid use of variable I (replace by J).

        * par-ch10.adb: Fix text of one error message

        * checks.adb, checks.ads, cstand.adb, vms_data.ads, errout.ads,
        exp_aggr.adb, exp_ch3.adb, exp_ch3.ads, exp_ch5.adb, exp_ch6.adb,
        exp_ch9.adb, exp_code.adb, gnat1drv.adb, lib-load.adb, lib-writ.adb,
        opt.adb, par.adb, opt.ads, par-ch11.adb, par-ch3.adb, par-ch4.adb,
        par-ch5.adb, par-ch6.adb, par-ch8.adb, par-ch9.adb, par-prag.adb,
        par-util.adb, scng.adb, sem_aggr.adb, sem_attr.adb, sem_cat.adb,
        sem_ch10.adb, sem_ch10.adb, sem_ch11.adb, sem_ch12.adb, sem_ch2.adb,
        sem_ch3.adb, sem_ch3.ads, sem_ch4.adb, sem_ch5.adb, sem_ch6.adb,
        sem_ch7.adb, sem_ch8.adb, sem_ch9.adb, sem_eval.adb, sem_prag.adb,
        sem_res.adb, sem_type.adb, sem_util.adb, sinfo.ads, snames.adb,
        snames.ads, snames.h, sprint.adb, switch-c.adb: Modifications for Ada
        2005 support.

2004-06-07  Doug Rupp  <rupp@gnat.com>

        * mlib-tgt-vms.adb: Rename mlib-tgt-vms.adb mlib-tgt-vms-alpha.adb

        * s-vaflop-vms.adb: Rename s-vaflop-vms.adb to s-vaflop-vms-alpha.adb

        * mlib-tgt-vms-ia64.adb: New file.

        * Makefile.in: Rename mlib-tgt-vms.adb to mlib-tgt-vms-alpha.adb
        Add mlib-tgt-vms-ia64.adb
        Rename s-vaflop-vms.adb to s-vaflop-vms-alpha.adb.
        Move to alpha specific ifeq section.
        Add VMS specific versions of symbols.adb
        Renaming of 5q vms files.

        * 5qsystem.ads renamed to system-vms_64.ads.

2004-06-07  Vincent Celier  <celier@gnat.com>

        * a-calend.ads: Add a GNAT Note comment after function Time_Of to
        explain that when a time of day corresponding to the non existing hour
        on the day switching to DST is specified, Split may return a different
        value for Seconds.

        * gnatcmd.adb: Add processing of GNAT METRIC (for gnatmetric), similar
        to GNAT PRETTY.

        * g-os_lib.adb (OpenVMS): New Boolean value imported from System.
        (Normalize_Pathname): Only resolve VMS logical names when on VMS.

        * mlib-prj.adb (Build_Library): New flag Gtrasymobj_Needed, initialize
        to False.
        If Gtrasymobj_Needed is True, add the full path of g-trasym.obj to
        the linking options.
        (Build_Library.Check_Libs): On VMS, if there is a dependency on
        g-trasym.ads, set Gtrasymobj_Needed to True.

        * prj-attr.adb: Add new package Metrics for gnatmetric

        * prj-nmsc.adb (Record_Other_Sources): Put source file names in
        canonical case to take into account files with upper case characters on
        Windows.
        (Ada_Check): Load the reference symbol file name in the name buffer to
        check it, not the symbol file name.

        * snames.ads, snames.adb: Add standard name Metrics (name of project
        file package for gnatmetric).

        * vms_conv.ads: Add Metric to Comment_Type

        * vms_conv.adb (Initialize): Add component dor Metric in Command_List

        * vms_data.ads: Add qualifiers for GNAT METRIC

        * makegpr.adb (Link_Executables): Take into account the switches
        specified in package Linker of the main project.

2004-06-07  Thomas Quinot  <quinot@act-europe.fr>

        * bindgen.adb (Set_Unit_Number): Units is an instance of Table, and so
        the index of the last element is Units.Last, not Units.Table'Last
        (which is usually not a valid index within the actually allocated
        storage for the table).

        * exp_ch4.adb (Insert_Dereference_Action): Change predicate that
        determines whether to generate a call to a checked storage pool
        Dereference action.
        Generate such a call only for a dereference that either comes from
        source, or is the result of rewriting a dereference that comes from
        source.

2004-06-07  Romain Berrendonner  <berrendo@act-europe.fr>

        * bindgen.adb (Gen_Output_File): Add support for GAP builds.

2004-06-07  Eric Botcazou  <ebotcazou@act-europe.fr>

        (gnat_to_gnu_entity) <E_Array_Subtype>: For multi-dimensional arrays at
        file level, elaborate the stride for inner dimensions in alignment
        units, not bytes.

        * exp_ch5.adb: Correct wrong reference to Component_May_Be_Bit_Aligned
        in a comment.

2004-06-07  Javier Miranda  <miranda@gnat.com>

        * exp_ch6.adb: Correct wrong modification in previous patch

2004-06-07  Vasiliy Fofanov  <fofanov@act-europe.fr>

        * g-trasym.ads: Corrected comment to properly reflect level of support
        on VMS.

2004-06-07  Hristian Kirtchev  <kirtchev@gnat.com>

        * lib-xref.adb (Generate_Reference): Add nested function Is_On_LHS. It
        includes case of a variable referenced on the left hand side of an
        assignment, therefore remove redundant code. Variables and prefixes of
        indexed or selected components are now marked as referenced on left
        hand side. Warnings are now properly emitted when variables or prefixes
        are assigned but not read.

        * sem_warn.adb (Output_Unreferenced_Messages): Add additional checks to
        left hand side referenced variables. Private access types do not
        produce the warning "variable ... is assigned but never read".
        Add also additional checks to left hand side referenced variables.
        Aliased, renamed objects and access types do not produce the warning
        "variable ... is assigned but never read" since other entities may read
        the memory location.

2004-06-07  Jerome Guitton  <guitton@act-europe.fr>

        * Makefile.in: In the powerpc/vxworks-specific section, restore
        EXTRA_GNATRTL_NONTASKING_OBJS and EXTRA_GNATRTL_TASKING_OBJS (removed
        by mistake).

2004-06-07  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch4.adb (Remove_Abstract_Operations): Refine the removal of
        predefined operators.
        Removes spurious type errors from g-trasym-vms.adb.

        * sem_res.adb (Rewrite_Renamed_Operator): If intrinsic operator is
        distinct from the operator appearing in the source, call appropriate
        routine to insert conversions when needed, and complete resolution of
        node.
        (Resolve_Intrinsic_Operator): Fix cut-and-paste bug on transfer of
        interpretations for rewritten right operand.
        (Set_Mixed_Mode_Operand): Handle properly a universal real operand when
        the other operand is overloaded and the context is a type conversion.

2004-06-07  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * ada-tree.def (BLOCK_STMT): Now has two operands.
        (BREAK_STMT): New.

        * ada-tree.h: (BLOCK_STMT_BLOCK): New macro.

        * gigi.h: (gnat_poplevel): Now returns a tree.

        * trans.c (end_block_stmt): Add arg; all callers changed.
        (tree_transform, case N_Case_Statement): Make a BLOCK_STMT for a WHEN.
        (start_block_stmt): Clear BLOCK_STMT_BLOCK.
        (add_stmt): Set TREE_TYPE.
        (gnat_expand_stmt, case BLOCK_STMT): Handle BLOCK_STMT_BLOCK.
        (gnat_expand_stmt, case BREAK_STMT): New case.

        * utils.c (gnat_poplevel): Return a BLOCK, if we made one.

2004-06-07  Jose Ruiz  <ruiz@act-europe.fr>

        * s-stchop.adsm s-stchop.adb, s-stchop-vxworks.adb: Remove the
        procedure Set_Stack_Size that is not needed.

2004-06-07  Sergey Rybin  <rybin@act-europe.fr>

        * gnat_ugn.texi: Clarify the case when non-standard naming scheme is
        used for gnatpp input file and for the files upon which it depends

2004-06-07  Ben Brosgol  <brosgol@gnat.com>

        * gnat_ugn.texi: Wordsmithing of "GNAT and Libraries" chapter

2004-06-07  Arnaud Charlet  <charlet@act-europe.fr>

        * gnatvsn.ads: Bump version numbers appropriately.
        Add new build type.

2004-06-07  Pascal Obry  <obry@gnat.com>

        * gnat_ugn.texi: Improve comments about imported names and link names
        on Windows. Add a note about the requirement to use -k gnatdll's option
        when working with a DLL which has stripped stdcall symbols (no @nn
        suffix).

2004-05-27  Vincent Celier  <celier@gnat.com>

        * vms_data.ads: Add new GNAT PRETTY qualifiers /NO_BACKUP and
        COMMENTS_LAYOUT=UNTOUCHED

        * symbols-vms.adb, symbols-vms-alpha.adb: Renamed symbols-vms.adb to
        symbols-vms-alpha.adb

2004-05-27  Thomas Quinot  <quinot@act-europe.fr>

        * sem.ads: Clarify documentation on checks suppression.

        * einfo.ads (Is_Known_Non_Null): Minor comment typo fix and rephrasing.

2004-05-27  Ed Schonberg  <schonberg@gnat.com>

        * sem_util.adb (Is_Descendent_Of): Examine properly all ancestors in
        the case of multiple derivations.
        (Is_Object_Reference): For a selected component, verify that the prefix
        is itself an object and not a value.

        * sem_ch12.adb (Same_Instantiated_Constant): New name for
        Same_Instantiated_Entity.
        (Same_Instantiated_Variable): Subsidiary to
        Check_Formal_Package_Instance, to recognize actuals for in-out generic
        formals that are obtained from a previous formal package.
        (Instantiate_Subprogram_Body): Emit proper error when
        generating code and the proper body of a stub is missing.

        * sem_ch4.adb (Remove_Address_Interpretations): If the operation still
        has a universal interpretation, do the disambiguation here.

        * exp_ch4.adb (Expand_N_Type_Conversion,
        Expand_N_Unchecked_Type_Conversion): Special handling when target type
        is Address, to avoid typing anomalies when Address is a visible integer
        type.

        * exp_ch6.adb (Expand_N_Subprogram_Body): Use Is_Descendent_Of_Address
        to determine whether a subprogram should not be marked Pure, even when
        declared in a pure package.

2004-05-27  Jose Ruiz  <ruiz@act-europe.fr>

        * gnat_ugn.texi: Replace pragma Ravenscar by pragma Profile.

        * gnat_rm.texi: Replace Max_Entry_Queue_Depth by Max_Entry_Queue_Length
        Document No_Dynamic_Attachment, that supersedes No_Dynamic_Interrupts.
        Update the documentation about the Ravenscar profile, following the
        definition found in AI-249.

        * sem_prag.adb: Use FIFO_Within_Priorities and Ceiling_Locking when
        setting the Profile (Ravenscar). This must be done in addition to
        setting the required restrictions.

        * rtsfind.ads: Add the set of operations defined in package
        Ada.Interrupts.

        * exp_ch6.adb: Check whether we are violating the No_Dynamic_Attachment
        restriction.

2004-05-27  Eric Botcazou  <ebotcazou@act-europe.fr>

        lang-specs.h: Always require -c or -S and always redirect to /dev/null
        if -gnatc or -gnats is passed.

2004-05-27  Hristian Kirtchev  <kirtchev@gnat.com>

        * sem_prag.adb (Sig_Flags): A Pragma_Unchecked_Union does not count as
        a significant reference. Warnings are now properly emitted when a
        discriminated type is not referenced.

        * lib-xref.adb (Generate_Reference): A deferred constant completion,
        record representation clause or record type discriminant does not
        produce a reference to its corresponding entity. Warnings are now
        properly emitted when deferred constants and record types are not
        referenced.

2004-05-27  Geert Bosch  <bosch@gnat.com>

        * Makefile.in: Use long version of libm routines on ia64 gnu/linux.
        Fixes ACATS Annex G tests.

2004-05-27  Robert Dewar  <dewar@gnat.com>

        * rtsfind.adb (RTU_Loaded): Temporary kludge to get past bug of not
        handling WITH

2004-05-27  Arnaud Charlet  <charlet@act-europe.fr>

        * s-interr.adb (Server_Task): Take into account case of early return
        from sigwait under e.g. linux.

2004-05-27  Sergey Rybin  <rybin@act-europe.fr>

        * gnat_ugn.texi: Add description for the new gnatpp options:
         -rnb - replace the original source without creating its backup copy
         -c0 - do not format comments

2004-05-24  Geert Bosch  <bosch@gnat.com>

        * a-numaux-x86.adb (Reduce): Reimplement using an approximation of Pi
        with 192 bits of precision, sufficient to reduce a double-extended
        arguments X with a maximum relative error of T'Machine_Epsilon, for X
        in -2.0**32 .. 2.0**32.
        (Cos, Sin):  Always reduce arguments of 1/4 Pi or larger, to prevent
        reduction by the processor, which only uses a 68-bit approximation of
        Pi.
        (Tan): Always reduce arguments and compute function either using
        the processor's fptan instruction, or by dividing sin and cos as needed.

2004-05-24  Doug Rupp  <rupp@gnat.com>

        * adaint.c (__gnat_readdir): Cast CRTL function retun value to avoid
        gcc error on 32/64 bit VMS.

2004-05-24  Olivier Hainque  <hainque@act-europe.fr>

        * init.c (__gnat_error_handler): Handle EEXIST as EACCES for SIGSEGVs,
        since this is what we get for stack overflows although not documented
        as such.
        Document the issues which may require adjustments to our signal
        handlers.

2004-05-24  Ed Schonberg  <schonberg@gnat.com>

        * inline.adb (Add_Scope_To_Clean): Do not add cleanup actions to the
        enclosing dynamic scope if the instantiation is within a generic unit.

2004-05-24  Arnaud Charlet  <charlet@act-europe.fr>

        * exp_dbug.ads: Fix typo.

        * Makefile.in: s-osinte-linux-ia64.ads was misnamed.
        Rename it to its proper name: system-linux-ia64.ads
        (stamp-gnatlib1): Remove extra target specific run time files when
        setting up the rts directory.

2004-05-24  Javier Miranda  <miranda@gnat.com>

        * einfo.ads, einfo.adb (Limited_Views): Removed.
        (Limited_View): New attribute that replaces the previous one. It is
        now a bona fide package with the limited-view list through the
        first_entity and first_private attributes.

        * sem_ch10.adb (Install_Private_With_Clauses): Give support to
        limited-private-with clause.
        (Install_Limited_Withed_Unit): Install the private declarations of a
        limited-private-withed package. Update the installation of the shadow
        entities according to the new structure (see Build_Limited_Views)
        (Build_Limited_Views): Replace the previous implementation of the
        limited view by a package entity that references the first shadow
        entity plus the first shadow private entity (required for limited-
        private-with clause)
        (New_Internal_Shadow_Entity): Code cleanup.
        (Remove_Limited_With_Clause): Update the implementation to undo the
        new work carried out by Build_Limited_Views.
        (Build_Chain): Complete documentation.
        Replace Ada0Y by Ada 0Y in comments
        Minor reformating

        * sem_ch3.adb (Array_Type_Declaration): In case of anonymous access
        types the level of accessibility depends on the enclosing type
        declaration.

        * sem_ch8.adb (Find_Expanded_Name): Fix condition to detect shadow
        entities. Complete documentation of previous change.

2004-05-24  Robert Dewar  <dewar@gnat.com>

        * namet.adb: Minor reformatting
        Avoid use of name I (replace by J)
        Minor code restructuring

        * sem_ch6.adb: Minor reformatting

        * lib-writ.adb: Do not set restriction as active if this is a
        Restriction_Warning case.

        * sem_prag.adb: Reset restriction warning flag if real pragma
        restriction encountered.

        * s-htable.adb: Minor reformatting
        Change rotate count to 3 in Hash (improves hash for small strings)

        * 5qsystem.ads: Add comments for type Address (no literals allowed).

        * gnat_ugn.texi: Add new section of documentation "Code Generation
        Control", which describes the use of -m switches.

2004-05-24  Eric Botcazou  <ebotcazou@act-europe.fr>

        trans.c (tree_transform) <N_Identifier>: Do the dereference directly
        through the DECL_INITIAL for renamed variables.

2004-05-24  Arnaud Charlet  <charlet@act-europe.fr>

        * s-osinte-linux-ia64.ads: Renamed system-linux-ia64.ads

2004-05-19  Joel Brobecker  <brobecker@gnat.com>

        * exp_dbug.ads: Correct comments concerning handling of overloading,
        since we no longer use $ anymore.

2004-05-19  Sergey Rybin  <rybin@act-europe.fr>

        * sem_ch10.adb (Optional_Subunit): When loading a subunit, do not
        ignore errors if ASIS_Mode is set. This prevents creating ASIS trees
        with illegal subunits.

2004-05-19  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch6.adb (Check_Following_Pragma): When compiling a subprogram
        body with front-end inlining enabled, check whether an inline pragma
        appears immediately after the body and applies to it.

        * sem_prag.adb (Cannot_Inline): Emit warning if front-end inlining is
        enabled and the pragma appears after the body of the subprogram.

2004-05-17  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        Part of function-at-a-time conversion

        * misc.c (adjust_decl_rtl): Deleted.
        (LANG_HOOKS_PUSHLEVEL, LANG_HOOKS_POPLEVEL, LANG_HOOKS_SET_BLOCK):
        Define.

        * gigi.h: (adjust_decl_rtl, kept_level_p, set_block): Deleted.
        (add_decl_stmt, add_stmt, block_has_vars): New functions.
        (gnat_pushlevel, gnat_poplevel): Renamed from pushlevel and poplevel.

        * decl.c (elaborate_expression, maybe_pad_type): Call add_decl_stmt
        when making a decl.
        (gnat_to_gnu_entity): Likewise.
        Use add_stmt to update setjmp buffer.
        Set TREE_ADDRESSABLE instead of calling put_var_into_stack and
        flush_addressof.
        No longer call adjust_decl_rtl.
        (DECL_INIT_BY_ASSIGN_P): New macro.
        (DECL_STMT_VAR): Likewise.

        * trans.c (gigi): Call start_block_stmt to make the outermost
        BLOCK_STMT.
        (gnat_to_code, gnu_to_gnu, tree_transform, process_decls, process_type):
        Call start_block_stmt and end_block_stmt temporarily.
        Use gnat_expand_stmt instead of expand_expr_stmt.
        (add_decl_stmt): New function.
        (tree_transform): Call it.
        (add_stmt): Also emit initializing assignment for DECL_STMT if needed.
        (end_block_stmt): Set type and NULL_STMT.
        (gnat_expand_stmt): Make recursize call instead of calling
        expand_expr_stmt.
        (gnat_expand_stmt, case DECL_STMT): New case.
        (set_lineno_from_sloc): Do nothing if global.
        (gnu_block_stmt_node, gnu_block_stmt_free_list): New variables.
        (start_block_stmt, add_stmt, end_block_stmt): New functions.
        (build_block_stmt): Call them.
        (gnat_to_code): Don't expand NULL_STMT.
        (build_unit_elab): Rename pushlevel and poplevel to gnat_* and change
        args.
        (tree_transform): Likewise.
        (tree_transform, case N_Null_Statement): Return NULL_STMT.
        (gnat_expand_stmt, case NULL_STMT): New case.
        (gnat_expand_stmt, case IF_STMT): Allow nested IF_STMT to have no
        IF_STMT_TRUE.

        * utils2.c (gnat_mark_addressable, case VAR_DECL): Do not set
        TREE_ADDRESSABLE.

        * utils.c (create_var_decl): Do not call expand_decl or
        expand_decl_init.
        Set TREE_ADDRESSABLE instead of calling gnat_mark_addressable.
        Set DECL_INIT_BY_ASSIGN_P when needed and do not generate MODIFY_EXPR
        here.
        (struct e_stack): Add chain_next to GTY.
        (struct binding_level): Deleted.
        (struct ada_binding_level): New struct.
        (free_block_chain): New.
        (global_binding_level, clear_binding_level): Deleted.
        (global_bindings_p): Rework to see if no chain.
        (kept_level_p, set_block): Deleted.
        (gnat_pushlevel): Renamed from pushlevel and extensive reworked to use
        new data structure and work directly on BLOCK node.
        (gnat_poplevel): Similarly.
        (get_decls): Look at BLOCK_VARS.
        (insert_block): Work directly on BLOCK node.
        (block_has_var): New function.
        (pushdecl): Rework for new binding structures.
        (gnat_init_decl_processing): Rename and rework calls to pushlevel and
        poplevel.
        (build_subprog_body): Likewise.
        (end_subprog_body): Likewise; also set up BLOCK in DECL_INITIAL.

        * ada-tree.def (DECL_STMT, NULL_STMT): New codes.

        * ada-tree.h: (DECL_INIT_BY_ASSIGN_P): New macro.
        (DECL_STMT_VAR): Likewise.

2004-05-17  Robert Dewar  <dewar@gnat.com>

        * restrict.ads, restrict.adb (Process_Restriction_Synonym): New
        procedure

        * sem_prag.adb (Analyze_Pragma, case Restrictions): Cleanup handling
        of restriction synonyums by using
        Restrict.Process_Restriction_Synonyms.

        * snames.ads, snames.adb: Add entries for Process_Restriction_Synonym

        * s-restri.ads (Tasking_Allowed): Correct missing comment

        * s-rident.ads: Add entries for restriction synonyms

        * ali.adb: Fix some problems with badly formatted ALI files that can
        result in infinite loops.

        * s-taprop-lynxos.adb, s-tpopsp-lynxos.adb, s-taprop-tru64.adb,
        s-tpopsp-posix-foreign.adb, s-taprop-irix.adb, s-interr-sigaction.adb,
        s-taprop-irix-athread.adb, s-taprop-hpux-dce.adb, s-taprop-linux.adb,
        s-taprop-dummy.adb, s-interr-dummy.adb, s-taprop-os2.adb,
        s-taprop-solaris.adb, s-tpopsp-solaris.adb, s-asthan-vms.adb,
        s-inmaop-vms.adb, s-interr-vms.adb, s-taprop-vms.adb,
        s-tpopde-vms.adb, s-taprop-mingw.adb, s-interr-vxworks.adb,
        s-taprop-vxworks.adb, s-tpopsp-vxworks.adb, s-taprop-posix.adb,
        s-tpopsp-posix.adb, s-tratas-default.adb, a-dynpri.adb,
        a-tasatt.adb, a-taside.adb, a-taside.ads, exp_attr.adb,
        exp_ch9.adb, g-thread.adb, rtsfind.ads, sem_attr.adb,
        s-interr.adb, s-interr.ads, s-soflin.ads, s-taasde.adb,
        s-taasde.ads, s-taenca.adb, s-taenca.ads, s-taprop.ads,
        s-tarest.adb, s-tarest.ads, s-tasdeb.adb, s-tasdeb.ads,
        s-tasini.adb, s-tasini.ads, s-taskin.adb, s-taskin.ads,
        s-tasque.adb, s-tasque.ads, s-tasren.adb, s-tasren.ads,
        s-tassta.adb, s-tassta.ads, s-tasuti.adb, s-tasuti.ads,
        s-tataat.adb, s-tataat.ads, s-tpinop.adb, s-tpinop.ads,
        s-tpoben.adb, s-tpobop.adb, s-tpobop.ads, s-tporft.adb,
        s-tposen.adb, s-tposen.ads, s-tratas.adb, s-tratas.ads: Change Task_ID
        to Task_Id (minor cleanup).

2004-05-17  Vincent Celier  <celier@gnat.com>

        * g-os_lib.adb (Normalize_Pathname.Final_Value): Remove trailing
        directory separator.

        * prj-proc.adb (Recursive_Process): Inherit attribute Languages from
        project being extended, if Languages is not declared in extending
        project.

2004-05-17  Javier Miranda  <miranda@gnat.com>

        * sem_ch10.adb (Install_Limited_Withed_Unit): Do not install the
        limited view of a visible sibling.

2004-05-14  Robert Dewar  <dewar@gnat.com>

        * gnat_ugn.texi: Minor change to -gnatS documentation

        * sprint.adb: Remove some instances of Assert (False) and for this
        purpose replace them by output of a ??? string.

        * checks.adb, exp_aggr.adb, sem_elim.adb: Remove useless pragma
        Assert (False).

        * lib-writ.adb, lib-load.adb, lib.ads, lib.adb: Remove Dependent_Unit
        flag processing. This was suppressing required dependencies in
        No_Run_Time mode and is not needed since the binder does not generate
        references for things in libgnat anyway.

        * sem_ch3.adb (Access_Type_Declaration): Reorganize code to avoid GCC
        warning.

2004-05-14  Thomas Quinot  <quinot@act-europe.fr>

        * gnat_ugn.texi: Document AIX-specific issue with initialization of
        resolver library.

        * exp_ch4.adb (Insert_Dereference_Action): Do not generate dereference
        action for the case of an actual parameter in an init proc call.

2004-05-14  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch4.adb (Analyze_Selected_Component): If prefix is a protected
        subtype, check visible entities in base type.

        * exp_ch7.adb (Clean_Simple_Protected_Objects): Do not generate cleanup
        actions if the object is a renaming.

        * sem_ch12.adb (Same_Instantiated_Entity): Predicate for
        Check_Formal_Package_Instance, to determine more precisely when the
        formal and the actual denote the same entity.

2004-05-14  Javier Miranda  <miranda@gnat.com>

        * par-ch10.adb (P_Context_Clause): Complete documentation on AI-262

        * sem_ch10.adb (Analyze_With_Clause): After analyzed, the entity
        corresponding to a private_with must be removed from visibility; it
        will be made visible later, just before we analyze the private part of
        the package.
        (Check_Private_Child_Unit): Allow private_with clauses in public
        siblings.
        (Install_Siblings): Make visible the private entities of private-withed
        siblings.
        (Install_Withed_Unit): Do not install the private withed unit if we
        are compiling a package declaration and the Private_With_OK flag was
        not set by the caller. These declarations will be installed later,
        just before we analyze the private part of the package.

        * sem_ch3.adb (Analyze_Object_Declaration): In case of errors detected
        during the evaluation of the expression that initializes the object,
        decorate it with the expected type to avoid cascade errors.
        Code cleanup.

        * sem_ch6.adb (Analyze_Subprogram_Body): If we are compiling a library
        subprogram we have to install the private_with clauses after its
        specification has been analyzed (as documented in AI-262.TXT).

        * sem_ch8.adb (Has_Private_With): New function. Determines if the
        current compilation unit has a private with on a given entity.
        (Find_Direct_Name): Detect the Beaujolais problem described in
        AI-262.TXT

        * sem_utils.ads, sem_util.adb (Is_Ancestor_Package): New function. It
        provides the functionality of the function Is_Ancestor that was
        previously available in sem_ch10. It has been renamed to avoid
        overloading.

        * sprint.adb (Sprint_Node_Actual): Print limited_with clauses

2004-05-14  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * utils.c (build_vms_descriptor): Use SImode pointers.

2004-05-14  Vasiliy Fofanov  <fofanov@act-europe.fr>

        * gnat_ugn.texi: Revised chapter "GNAT and Libraries".

2004-05-14  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-05-14  Arnaud Charlet  <charlet@act-europe.fr>

        Renaming of target specific files for clarity

        * Makefile.in: Rename GNAT target specific files.

        * 31soccon.ads, 31soliop.ads 35soccon.ads, 3asoccon.ads,
        3bsoccon.ads, 3gsoccon.ads, 3hsoccon.ads, 3psoccon.ads,
        3ssoccon.ads, 3ssoliop.ads, 3veacodu.adb, 3vexpect.adb,
        3vsoccon.ads, 3vsocthi.adb, 3vsocthi.ads, 3vtrasym.adb,
        3wsoccon.ads, 3wsocthi.adb, 3wsocthi.ads, 3wsoliop.ads,
        3zsoccon.ads, 3zsocthi.adb, 3zsocthi.ads, 41intnam.ads,
        42intnam.ads, 45intnam.ads, 4aintnam.ads, 4cintnam.ads,
        4gintnam.ads, 4hexcpol.adb, 4hintnam.ads, 4lintnam.ads,
        4nintnam.ads, 4ointnam.ads, 4onumaux.ads, 4pintnam.ads,
        4sintnam.ads, 4vcaldel.adb, 4vcalend.adb, 4vcalend.ads,
        4vintnam.ads, 4wcalend.adb, 4wexcpol.adb, 4wintnam.ads,
        4zintnam.ads, 4znumaux.ads, 4zsytaco.adb, 4zsytaco.ads,
        51osinte.adb, 51osinte.ads, 51system.ads,
        52osinte.adb, 52osinte.ads, 53osinte.ads, 54osinte.ads,
        55osinte.adb, 55osinte.ads, 55system.ads, 56osinte.adb,
        56osinte.ads, 56system.ads, 56taprop.adb, 56taspri.ads,
        56tpopsp.adb, 57system.ads, 58system.ads,
        5amastop.adb, 5aml-tgt.adb, 5aosinte.adb, 5aosinte.ads,
        5asystem.ads, 5ataprop.adb, 5atasinf.ads, 5ataspri.ads,
        5atpopsp.adb, 5avxwork.ads, 5bml-tgt.adb, 5bosinte.adb,
        5bosinte.ads, 5bsystem.ads, 5cosinte.ads, 5csystem.ads,
        5dsystem.ads, 5esystem.ads, 5fintman.adb, 5fosinte.adb,
        5fosinte.ads, 5fsystem.ads, 5ftaprop.adb, 5ftasinf.ads,
        5ginterr.adb, 5gintman.adb, 5gmastop.adb, 5gml-tgt.adb,
        5gosinte.ads, 5gproinf.adb, 5gproinf.ads, 5gsystem.ads,
        5gtaprop.adb, 5gtasinf.adb, 5gtasinf.ads, 5gtpgetc.adb,
        5hml-tgt.adb, 5hosinte.adb, 5hosinte.ads, 5hparame.ads,
        5hsystem.ads, 5htaprop.adb, 5htaspri.ads, 5htraceb.adb,
        5iosinte.adb, 5iosinte.ads, 5itaprop.adb, 5itaspri.ads,
        5ksystem.ads, 5kvxwork.ads, 5lml-tgt.adb, 5losinte.ads,
        5lparame.adb, 5lsystem.ads, 5msystem.ads, 5mvxwork.ads,
        5ninmaop.adb, 5nintman.adb, 5nosinte.ads, 5nsystem.ads,
        5ntaprop.adb, 5ntaspri.ads, 5ointerr.adb, 5omastop.adb,
        5oosinte.adb, 5oosinte.ads, 5oosprim.adb, 5oparame.adb,
        5osystem.ads, 5otaprop.adb, 5otaspri.ads, 5posinte.ads,
        5posprim.adb, 5psystem.ads, 5pvxwork.ads, 5sintman.adb,
        5sml-tgt.adb, 5sosinte.adb, 5sosinte.ads, 5sosprim.adb,
        5sparame.adb, 5ssystem.ads, 5staprop.adb, 5stasinf.adb,
        5stasinf.ads, 5staspri.ads, 5stpopsp.adb, 5svxwork.ads,
        5tosinte.ads, 5usystem.ads, 5vasthan.adb, 5vdirval.adb,
        5vinmaop.adb, 5vinterr.adb, 5vintman.adb, 5vintman.ads,
        5vmastop.adb, 5vml-tgt.adb, 5vosinte.adb, 5vosinte.ads,
        5vosprim.adb, 5vosprim.ads, 5vparame.ads, 5vsymbol.adb,
        5vsystem.ads, 5vtaprop.adb, 5vtaspri.ads, 5vtpopde.adb,
        5vtpopde.ads, 5vtraent.adb, 5vtraent.ads, 5vvaflop.adb,
        5wdirval.adb, 5wgloloc.adb, 5wintman.adb, 5wmemory.adb,
        5wml-tgt.adb, 5wosinte.ads, 5wosprim.adb, 5wsystem.ads,
        5wtaprop.adb, 5wtaspri.ads, 5xparame.ads, 5xsystem.ads,
        5xvxwork.ads, 5yparame.ads, 5ysystem.ads, 5zinterr.adb,
        5zintman.adb, 5zintman.ads, 5zml-tgt.adb, 5zosinte.adb,
        5zosinte.ads, 5zosprim.adb, 5zparame.ads, 5zstchop.adb,
        5zsystem.ads, 5ztaprop.adb, 5ztaspri.ads, 5ztfsetr.adb,
        5ztpopsp.adb, 6vcpp.adb, 6vcstrea.adb, 6vinterf.ads,
        7sinmaop.adb, 7sintman.adb, 7sosinte.adb, 7sosprim.adb,
        7staprop.adb, 7staspri.ads, 7stfsetr.adb, 7stpopsp.adb,
        7straceb.adb, 7straces.adb, 7strafor.adb, 7strafor.ads,
        7stratas.adb, 86numaux.adb, 86numaux.ads: Replaced by files below.

        * a-caldel-vms.adb, a-calend-mingw.adb, a-calend-vms.adb,
        a-calend-vms.ads, a-dirval-mingw.adb, a-dirval-vms.adb,
        a-excpol-abort.adb, a-excpol-interix.adb, a-intnam-aix.ads,
        a-intnam-dummy.ads, a-intnam-freebsd.ads, a-intnam-hpux.ads,
        a-intnam-interix.ads, a-intnam-irix.ads, a-intnam-linux.ads,
        a-intnam-lynxos.ads, a-intnam-mingw.ads, a-intnam-os2.ads,
        a-intnam-solaris.ads, a-intnam-tru64.ads, a-intnam-unixware.ads,
        a-intnam-vms.ads, a-intnam-vxworks.ads, a-numaux-libc-x86.ads,
        a-numaux-vxworks.ads, a-numaux-x86.adb, a-numaux-x86.ads,
        a-sytaco-vxworks.adb, a-sytaco-vxworks.ads, g-eacodu-vms.adb,
        g-expect-vms.adb, g-soccon-aix.ads, g-soccon-freebsd.ads,
        g-soccon-hpux.ads, g-soccon-interix.ads, g-soccon-irix.ads,
        g-soccon-mingw.ads, g-soccon-solaris.ads, g-soccon-tru64.ads,
        g-soccon-unixware.ads, g-soccon-vms.adb, g-soccon-vxworks.ads,
        g-socthi-mingw.adb, g-socthi-mingw.ads, g-socthi-vms.adb,
        g-socthi-vms.ads, g-socthi-vxworks.adb, g-socthi-vxworks.ads,
        g-soliop-mingw.ads, g-soliop-solaris.ads, g-soliop-unixware.ads,
        g-trasym-vms.adb, i-cpp-vms.adb, i-cstrea-vms.adb,
        interfac-vms.ads, mlib-tgt-aix.adb, mlib-tgt-hpux.adb,
        mlib-tgt-irix.adb, mlib-tgt-linux.adb, mlib-tgt-mingw.adb,
        mlib-tgt-solaris.adb, mlib-tgt-tru64.adb, mlib-tgt-vms.adb,
        mlib-tgt-vxworks.adb, s-asthan-vms.adb, s-gloloc-mingw.adb,
        s-inmaop-dummy.adb, s-inmaop-posix.adb, s-inmaop-vms.adb,
        s-interr-dummy.adb, s-interr-sigaction.adb, s-interr-vms.adb,
        s-interr-vxworks.adb, s-intman-dummy.adb, s-intman-irix.adb,
        s-intman-irix-athread.adb, s-intman-mingw.adb, s-intman-posix.adb,
        s-intman-solaris.adb, s-intman-vms.adb, s-intman-vms.ads,
        s-intman-vxworks.adb, s-intman-vxworks.ads, s-mastop-irix.adb,
        s-mastop-tru64.adb, s-mastop-vms.adb, s-mastop-x86.adb,
        s-memory-mingw.adb, s-osinte-aix.adb, s-osinte-aix.ads,
        s-osinte-aix-fsu.ads, s-osinte-dummy.ads, s-osinte-freebsd.adb,
        s-osinte-freebsd.ads, s-osinte-fsu.adb, s-osinte-hpux.ads,
        s-osinte-hpux-dce.adb, s-osinte-hpux-dce.ads, s-osinte-interix.ads,
        s-osinte-irix.adb, s-osinte-irix.ads, s-osinte-irix-athread.ads,
        s-osinte-linux.ads, s-osinte-linux-fsu.ads, s-osinte-linux-ia64.ads,
        s-osinte-lynxos-3.adb, s-osinte-lynxos-3.ads, s-osinte-lynxos.adb,
        s-osinte-lynxos.ads, s-osinte-mingw.ads, s-osinte-os2.adb,
        s-osinte-os2.ads, s-osinte-posix.adb, s-osinte-solaris.adb,
        s-osinte-solaris.ads, s-osinte-solaris-fsu.ads,
        s-osinte-solaris-posix.ads, s-osinte-tru64.adb, s-osinte-tru64.ads,
        s-osinte-unixware.adb, s-osinte-unixware.ads, s-osinte-vms.adb,
        s-osinte-vms.ads, s-osinte-vxworks.adb,
        s-osinte-vxworks.ads, s-osprim-mingw.adb,
        s-osprim-os2.adb, s-osprim-posix.adb, s-osprim-solaris.adb,
        s-osprim-unix.adb, s-osprim-vms.adb, s-osprim-vms.ads,
        s-osprim-vxworks.adb, s-parame-ae653.ads, s-parame-hpux.ads,
        s-parame-linux.adb, s-parame-os2.adb, s-parame-solaris.adb,
        s-parame-vms.ads, s-parame-vms-restrict.ads, s-parame-vxworks.ads,
        s-proinf-irix-athread.adb, s-proinf-irix-athread.ads,
        s-stchop-vxworks.adb, s-taprop-dummy.adb,
        s-taprop-hpux-dce.adb, s-taprop-irix.adb,
        s-taprop-irix-athread.adb, s-taprop-linux.adb, s-taprop-lynxos.adb,
        s-taprop-mingw.adb, s-taprop-os2.adb, s-taprop-posix.adb,
        s-taprop-solaris.adb, s-taprop-tru64.adb, s-taprop-vms.adb,
        s-taprop-vxworks.adb, s-tasinf-irix.ads, s-tasinf-irix-athread.adb,
        s-tasinf-irix-athread.ads, s-tasinf-solaris.adb, s-tasinf-solaris.ads,
        s-tasinf-tru64.ads, s-taspri-dummy.ads, s-taspri-hpux-dce.ads,
        s-taspri-linux.ads, s-taspri-lynxos.ads, s-taspri-mingw.ads,
        s-taspri-os2.ads, s-taspri-posix.ads, s-taspri-solaris.ads,
        s-taspri-tru64.ads, s-taspri-vms.ads, s-taspri-vxworks.ads,
        s-tfsetr-default.adb, s-tfsetr-vxworks.adb, s-tpopde-vms.adb,
        s-tpopde-vms.ads, s-tpopsp-lynxos.adb, s-tpopsp-posix.adb,
        s-tpopsp-posix-foreign.adb, s-tpopsp-solaris.adb, s-tpopsp-vxworks.adb,
        s-traceb-hpux.adb, s-traceb-mastop.adb, s-traces-default.adb,
        s-traent-vms.adb, s-traent-vms.ads, s-trafor-default.adb,
        s-trafor-default.ads, s-tratas-default.adb, s-vaflop-vms.adb,
        s-vxwork-alpha.ads, s-vxwork-m68k.ads, s-vxwork-mips.ads,
        s-vxwork-ppc.ads, s-vxwork-sparcv9.ads, s-vxwork-xscale.ads,
        symbols-vms.adb, system-aix.ads, system-freebsd-x86.ads,
        system-hpux.ads, system-interix.ads, system-irix-n32.ads,
        system-irix-o32.ads, system-linux-x86_64.ads,
        system-linux-x86.ads, system-lynxos-ppc.ads, system-lynxos-x86.ads,
        system-mingw.ads, system-os2.ads, system-solaris-sparc.ads,
        system-solaris-sparcv9.ads, system-solaris-x86.ads, system-tru64.ads,
        system-unixware.ads, system-vms.ads, system-vms-zcx.ads,
        system-vxworks-alpha.ads, system-vxworks-m68k.ads,
        system-vxworks-mips.ads, system-vxworks-ppc.ads,
        system-vxworks-sparcv9.ads, system-vxworks-xscale.ads: Replace files
        above.

2004-05-13  Zack Weinberg  <zack@codesourcery.com>

        * trans.c (gnat_stabilize_reference_1): Remove case 'b'.

2004-05-13  Diego Novillo  <dnovillo@redhat.com>

        Merge from tree-ssa-20020619-branch.

        * config-lang.in (boot_language, build_by_default): Set
        to no.
        * utils.c (unchecked_convert): Use OEP_ONLY_CONST.
        (max_size): Add static chain op for call_expr.

2004-05-12  Richard Sandiford  <rsandifo@redhat.com>

        PR target/15331
        * 5gmastop.adb (Roff): Choose between '4' and '0', not '4' and ' '.

2004-05-11  Roger Sayle  <roger@eyesopen.com>

        * utils.c (max_size): Use MIN_EXPR to find the minimum value of a
        COND_EXPR.

2004-05-10  Doug Rupp  <rupp@gnat.com>

        * 5qsystem.ads: Remove Short_Address subtype declaration. Moved to
        system.aux_dec.

        * s-auxdec.ads: Add Short_Address subtype (moved here from System).

        * Makefile.in: [VMS]: Add translation for 5qauxdec.ads.

        * init.c: [VMS] Macroize LIB$ calls for IA64 and Alpha.
        Fixes undefined symbols in IA64 gnatlib.

        * 5vinmaop.adb: Reference s-auxdec for Short_Address.

        * 5xsystem.ads, 5vsystem.ads: Back out last change (addition of subtype
        Short_Address). This will be moved to system.auxdec.

2004-05-10  Thomas Quinot  <quinot@act-europe.fr>

        * sem_util.adb: Replace test for presence of a node that is always
        present with a call to Discard_Node.

        * sem_ch10.adb (Analyze_Compilation_Unit): Remove superfluous call to
        Analyze on the library unit node after generation of distribution stub
        constructs.  The call was a no-op because Unit_Node has already been
        Analyzed, and the tree fragments for the distribution stubs are
        analyzed as they are inserted in Exp_Dist.
        Update comment regarding to distribution stubs to reflect that we
        do not generate stub in separate files anymore.

        * einfo.ads: Clarify the fact that a tagged private type has the
        E_Record_Type_With_Private Ekind.

        * erroutc.adb: Minor reformatting

        * erroutc.ads (Max_Msg_Length): Increase to cover possible larger
        values if line length is increased using -gnatyM (noticed during code
        reading).

        * eval_fat.adb: Minor reformatting
        Put spaces around exponentiation operator

2004-05-10  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15005
        * sem_util.adb (Is_Dependent_Component_Of_Mutable_Object): If prefix
        has been rewritten as an explicit dereference, retrieve type of
        original node to check for possibly unconstrained record type.

2004-05-10  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch7.adb (Check_Visibly_Controlled): If given operation is not
        overriding, use the operation of the parent unconditionally.

        * sem_ch4.adb (Remove_Address_Interpretations): Remove address
        operation when either operand is a literal, to avoid further
        ambiguities.

        * sem_ch6.adb (New_Overloaded_Entity): If new entity is inherited and
        overridden by a previous explicit declaration, mark the previous entity
        as overriding.

        * sem_disp.adb (Check_Dispatching_Operation): New predicate
        Is_Visibly_Controlled, to determine whether a declaration of a
        primitive control operation for a derived type overrides an inherited
        one. Add warning if the explicit declaration does not override.

2004-05-10  Vincent Celier  <celier@gnat.com>

        * gnatls.adb (Gnatls): Initialize Snames, to avoid assertion error in
        some cases when the sources are no longer present.

        * make.adb (Collect_Arguments): Fail if an external source, not part
        of any project need to be compiled, when switch -x has not been
        specified.

        * makeusg.adb: Document new switch -x

        * opt.ads (External_Unit_Compilation_Allowed): New Boolean flag,
        defaulted to False.

        * switch-m.adb (Scan_Make_Switches): New switch -x

        * vms_data.ads: Add VMS qualifier /NON_PROJECT_UNIT_COMPILATION for
        gnatmake switch -x.

        * gnat_ugn.texi: Document new gnatmake switch -x

2004-05-10  Eric Botcazou  <ebotcazou@act-europe.fr>

        * misc.c (gnat_init_options): Set flag_zero_initialized_in_bss to 0.

        * utils.c (create_var_decl): Do not modify the DECL_COMMON flag.
        (process_attributes): Likewise.

2004-05-10  Joel Brobecker  <brobecker@gnat.com>

        * s-inmaop.ads: Fix spelling mistake in one of the comments.

2004-05-10  Robert Dewar  <dewar@gnat.com>

        * gnat_ugn.texi: Document that for config pragma files, the maximum
        line length is always 32767.

        * gnat_rm.texi: For pragma Eliminate, note that concatenation of string
        literals is now allowed.

        * gnat-style.texi: Remove statement about splitting long lines before
        an operator rather than after, since we do not follow this rule at all.
        Clarify rule (really lack of rule) for spaces around exponentiation

        * sem_elim.adb: Allow concatenation of string literals as well as a
        single string literal for pragma arguments.

        * sem_prag.ads, sem_prag.adb: (Is_Config_Static_String): New function

        * a-textio.adb (Terminate_Line): Do not add line feed if nothing
        written for append case.

        * frontend.adb: Changes to avoid checking max line length in config
        pragma files.

        * g-os_lib.ads: Minor reformatting

        * mlib-utl.adb: Do not define Max_Line_Length locally (definition was
        wrong in any case. Instead use standard value. Noticed during code
        reading.

        * opt.ads (Max_Line_Length): New field, used to implement removal of
        limitation on length of lines when scanning config pragma files.

        * osint.ads, prj-dect.adb, prj-strt.adb, prj-tree.adb,
        makeutl.ads, makeutl.adb: Minor reformatting

        * scn.adb: Do not check line length while scanning config pragma files
        Do not check line length while scanning out license information

        * scng.adb: Changes to avoid line length checks while parsing config
        pragma files.

2004-05-10  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-05-05  Arnaud Charlet  <charlet@act-europe.fr>

        * osint.adb (Find_Program_Name): Fix handling of VMS version
        number.

2004-05-05  Emmanuel Briot  <briot@act-europe.fr>

        * g-os_lib.ads (Invalid_Time): New constant

        * adaint.h, adaint.c (__gnat_file_time_name, __gnat_file_time_fd): Now
        return OS_Time instead of time_t to match what is imported by Ada.
        Now return -1 if the file doesn't exist, instead of a random value

2004-05-05  Robert Dewar  <dewar@gnat.com>

        * usage.adb: Add line for -gnatR?s switch

        * sem_ch13.adb, exp_ch2.adb: Minor reformatting

        * g-regpat.ads, g-regpat.adb: Add documentation on handling of Size
        and for Match (Data_First, Data_last)

        * lib-writ.adb (Write_With_Lines): Ensure that correct index number is
        written when we are dealing with multi-unit files.

2004-05-05  Jerome Guitton  <guitton@act-europe.fr>

        * Makefile.in: Remove unused targets and variables.

2004-05-05  Vincent Celier  <celier@gnat.com>

        * switch-m.adb: New gnatmake switch -eI

        * vms_data.ads: Add VMS equivalents of new gnatclean swith -innn and
        of new gnatmake switch -eInnn.

        * makegpr.adb: Take into account new parameters Index and Src_Index in
        Prj.Util.

        * clean.adb: Implement support for multi-unit sources, including new
        switch -i.

        * gnatcmd.adb (GNATCmd): Call Prj.Util.Value_Of with new parameter
        Src_Index.

        * make.ads, make.adb (Insert_Q): New parameter Index, defaulted to 0
        (Extract_From_Q): New out parameter Index
        (Mark, Is_Marked): Subprograms moved to Makeutl
        (Switches_Of): New parameter Source_Index
        (Add_Switch): New parameter Index
        (Check): New parameter Source_Index
        (Collect_Arguments): New parameter Source_Index
        (Collect_Arguments_And_Compile): New parameter Source_Index
        (Compile): New parameter Source_Index
        Put subprograms in alphabetical order
        Add support for multi-source sources, including in project files.

        * makeutl.ads, makeutl.adb (Unit_Index_Of): New function
        (Mark, Is_Marked, Delete_All_Marks): New subprograms, moved from
        Make.

        * makeusg.adb: New gnatmake switch -eInnn

        * mlib-prj.adb (Build_Library): Add new parameter Src_Index to call to
        Prj.Util.Value_Of.

        * opt.ads (Main_Index): New variable, defaulted to 0.

        * osint.ads, osinte.adb (Add_File): New parameter Index
        (Current_Source_Index): New function

        * prj.adb: Take into account new components Index and Src_Index

        * prj.ads (String_Element): New component Index
        (Variable_Value): New component Index
        (Array_Element): New component Src_Index

        * prj-attr.adb: Indicate that optional index may be specified for
        attributes Main, Executable, Spec, Body and some of Switches.

        * prj-attr.ads (Attribute_Kind): New values for optional indexes
        (Attribute_Record): New component Optional_Index

        * prj-com.ads (File_Name_Data): New component Index

        * prj-dect.adb (Parse_Attribute_Declaration): Process optional index

        * prj-env.adb (Put): Output optional index

        * prj-makr.adb: Put indexes for multi-unit sources in SFN pragmas and
        attributes Spec and Body.

        * prj-nmsc.adb: Process optional indexes

        * prj-pp.adb: Ouput "at" for optional indexes

        * prj-proc.adb: Take into account optional indexes

        * prj-strt.ads, prj-strt.adb (Terms): New Boolean parameter
        Optional_Index. For string literal,
        process optional index when Optional_Index is True.
        (Parse_Expresion): New Boolean parameter Optional_Index

        * prj-tree.ads, prj-tree.adb (Source_Index_Of): New function
        (Set_Source_Index_Of): New procedure

        * prj-util.adb (Executable_Of, Value_Of): Take into account optional
        index.

        * prj-util.ads (Executable_Of): New parameter Index
        (Value_Of (Name_Id, Array_Element_Id) returning Variable_Value):
        New parameter Src_Index, defaulted to 0.

2004-05-05  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15257
        * sem_ch3.adb (Access_Definition): If this is an access parameter
        whose designated type is imported through a limited_with clause, do
        not add the enclosing subprogram to the list of private dependents of
        the type.

2004-05-05  Ed Schonberg  <schonberg@gnat.com>

        PR ada/15258
        * sem_ch6.adb (Base_Types_Match): True if one type is imported through
        a limited_with clause, and the other is its non-limited view.

2004-05-05  Thomas Quinot  <quinot@act-europe.fr>

        * cstand.adb (Create_Standard): Initialize Stand.Boolean_Literals.

        * exp_attr.adb, exp_ch5.adb, exp_ch9.adb, exp_disp.adb,
        exp_fixd.adb, sem_attr.adb, sem_dist.adb, sem_util.adb: Use
        Stand.Boolean_Literals to produce references to entities
        Standard_False and Standard_True from compile-time computed boolean
        values.

        * stand.ads (Boolean_Literals): New variable, provides the entity
        values for False and True, for use by the expander.

2004-05-05  Doug Rupp  <rupp@gnat.com>

        * 5vinmaop.adb, 5[vx]system.ads: Add Short_Address subtype
        5vinmaop.adb: Unchecked convert Short_Address vice Address

        * adaint.c, raise.c: Caste CRTL function return value
        to avoid gcc error on 32/64 bit IVMS.

        * Makefile.in [VMS]: Use iar archiver if host = Alpha/VMS and
        target = IA64/VMS.

        * init.c[VMS]: Only call Alpha specific __gnat_error_prehandler IN_RTS.

        * 5qsystem.ads (Address): Declare as Long_Integer
        (Short_Address): Declare as 32 bit subtype of Address
        Declare  abstract address operations to avoid gratuitous ambiguities.

2004-05-05  Jose Ruiz  <ruiz@act-europe.fr>

        * gnat_rm.texi: Use the new restriction Simple_Barriers (AI-249)
        instead of the old Boolean_Entry_Barriers.
        Ditto for No_Task_Attributes_Package instead of No_Task_Attributes.

2004-05-05  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-05-03  Arnaud Charlet  <charlet@act-europe.fr>

        * 50system.ads, 59system.ads, s-thread.ads: Removed, no longer used.

2004-05-03  Olivier Hainque  <hainque@act-europe.fr>

        PR ada/15152
        * exp_ch2.adb (Expand_Current_Value): Leave Machine_Code Asm arguments
        alone. Replacing object references by literals is inappropriate in a
        so low level context.

2004-05-03  Arnaud Charlet  <charlet@act-europe.fr>

        * a-exexpr.adb: Add comments

2004-05-03  Joel Brobecker  <brobecker@gnat.com>

        * a-tags.adb (Tag_Table): Add Index_Check pragma Suppress. Allows us to
        declare the Ancestor_Tags array in Type_Specific_Data with a small size
        without risking a bounds check error when accessing one of its
        components.
        (Type_Specific_Data): Define Ancestor_Tags as a small array.
        This prevents us from hitting a limitation during the debug info
        generation when using stabs.

        * a-tags.adb (Dispatch_Table): Define the Prims_Ptr component as a
        small array.
        This prevents us from hitting a limitation during the debug info
        generation when using stabs.

2004-05-03  Eric Botcazou  <ebotcazou@act-europe.fr>

        lang-specs.h: Remove -gnatz* from specs.

2004-05-03  Vincent Celier  <celier@gnat.com>

        * gprmake.adb, makegpr.ads, makegpr.adb: New files.

        * Make-lang.in, Makefile.in: Add gprmake

2004-05-03  Thomas Quinot  <quinot@act-europe.fr>

        * sem_aggr.adb: Fix typo in comment.

2004-05-03  Robert Dewar  <dewar@gnat.com>

        * make.adb: Minor reformatting

        * rtsfind.ads, rtsfind.adb: (RTU_Loaded): New function

        * sem_attr.adb (Eval_Attribute, case Type_Class): Fix check for address
        so that it works when address is not a private type.

        * sem_ch13.adb (Check_Expr_Constants, case N_Integer_Literal): Deal
        properly with rewritten unchecked conversions. This prevents
        order-of-elaboration issues that can otherwise arise.
        (Minimum_Size): Don't check size of access types under VMS

        * sem_ch4.adb (Remove_Address_Interpretation): New circuit to remove
        interpretations of integer literals as type System.Address.

        * sem_util.ads, sem_util.adb (Is_Descendent_Of_Address): New function
        (Is_Descendent_Of): New function

2004-05-03  Jose Ruiz  <ruiz@act-europe.fr>

        * sem_prag.adb: Boolean_Entry_Barriers is a synonym of Simple_Barriers.
        Max_Entry_Queue_Depth is a synonym of Max_Entry_Queue_Length.
        No_Dynamic_Interrupts is a synonym of No_Dynamic_Attachment.

        * sem_res.adb: Use the new restriction Max_Entry_Queue_Length instead
        of the old Max_Entry_Queue_Depth.

        * snames.adb: Boolean_Entry_Barriers is a synonym of Simple_Barriers.
        Max_Entry_Queue_Depth is a synonym of Max_Entry_Queue_Length
        No_Dynamic_Interrupts is a synonym of No_Dynamic_Attachment

        * snames.ads: New entry for proper handling of Boolean_Entry_Barriers.
        New entry for proper handling of Max_Entry_Queue_Depth.
        New entry for proper handling of No_Dynamic_Interrupts.

        * s-rident.ads: Adding restriction Simple_Barriers (AI-00249) that
        supersedes the GNAT specific restriction Boolean_Entry_Barriers.
        Adding restriction Max_Entry_Queue_Length (AI-00249) that supersedes
        the GNAT specific restriction Max_Entry_Queue_Depth.
        Adding restriction No_Dynamic_Attachment (AI-00249) that supersedes
        the GNAT specific restriction No_Dynamic_Interrupts.

        * restrict.ads, restrict.adb: Use the new restriction Simple_Barriers
        instead of the old Boolean_Entry_Barriers.
        Use the new restriction No_Dynamic_Attachment instead of the old
        No_Dynamic_Interrupts.

        * exp_ch9.adb: Check restriction Simple_Barriers (AI-00249) that
        supersedes the GNAT specific restriction Boolean_Entry_Barriers.

        * gnatbind.adb: Use the new restriction Max_Entry_Queue_Length instead
        of the old Max_Entry_Queue_Depth.

2004-05-03  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-04-29  Ed Schonberg  <schonberg@gnat.com>

        * checks.adb (Enable_Range_Check): If the prefix of an index component
        is an access to an unconstrained array, perform check unconditionally.

2004-04-29  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (gnat_to_gnu_field): Also call make_packable_type if
        Component_Clause.

2004-04-29  Olivier Hainque  <hainque@act-europe.fr>

        * init.c (__gnat_install_handler, __gnat_error_handler): Remove
        alternate stack setting. There was no support for the tasking cases
        and the changes eventually caused a number of side-effect failures in
        the non-tasking case too.

2004-04-29  Eric Botcazou  <ebotcazou@act-europe.fr>

        lang-specs.h: Redirect output to /dev/null if -gnatc or -gnatz or
        -gnats is passed.

2004-04-29  Vincent Celier  <celier@gnat.com>

        * make.adb (Gnatmake): Increase max size of argument array for
        gnatbind for the potential addition of -F.
        If there are Stand-Alone Library projects, invoke gnatbind with -F to
        be sure that elaboration flags will be checked.

        * switch-c.adb: Correct call to Scan_Pos for -gnateI

2004-04-29  Thomas Quinot  <quinot@act-europe.fr>

        * sem_warn.adb (Check_References): Move '<access-variable> may be
        null' warning out of under Warn_On_No_Value_Assigned.

2004-04-29  Ed Falis  <falis@gnat.com>

        * gnat_ugn.texi: Fixed texi error

2004-04-29  Robert Dewar  <dewar@gnat.com>

        * sem_ch4.adb (Remove_Abstract_Operations): Unconditionally remove
        abstract operations if they come from predefined files.

        * gnat_rm.texi: Fix bad doc for pragma Elaboration_Checks (should be
        Dynamic, not RM).

        * s-addope.adb: Correct obvious error in mod function

2004-04-28  Andrew W. Reynolds  <awreynolds@mac.com>

        * Makefile.in: Add target pairs for powerpc darwin*
        tasking support.

        * a-intnam-darwin.ads, s-osinte-darwin.adb,
        s-osinte-darwin.ads, system-darwin-ppc.ads: New files.

2004-04-28  Ulrich Weigand  <uweigand@de.ibm.com>

        * Makefile.in: Add target macro definitions for s390*-linux*.
        * system-linux-s390.ads: New file.
        * system-linux-s390x.ads: New file.

2004-04-28  Joseph S. Myers  <jsm@polyomino.org.uk>

        * gnat_ugn.texi: Correct argument to @setfilename.

2004-04-28  Ulrich Weigand  <uweigand@de.ibm.com>

        * a-exexpr.adb (Unwind_Word): New data type.
        (Unwind_Exception): Use it as type of Private1 and Private2.

        * raise.c (db_action_for): Fix debug printf.

2004-04-27  Ed Schonberg  <schonberg@gnat.com>

        * a-wtmoio.ads: Formal type must be a modular type, not a signed
        integer type.

2004-04-27  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (gnat_to_gnu_entity, case object): Call
        __builtin_update_setjmp_buf.

        * gigi.h (update_setjmp_buf): Deleted.
        (ADT_update_setjmp_buf_decl, update_setjmp_buf_decl): New.

        * misc.c: (update_setjmp_buf): Deleted.

        * trans.c (gnat_to_gnu): Call do_pending_stack_adjust and emit_queue
        around block of RTL.

        * utils.c (init_gigi_decls): Initialize update_setjmp_buf.

2004-04-26  Thomas Quinot  <quinot@act-europe.fr>

        * sem_dist.adb, exp_dist.adb: When constructing a RAS value for a local
        subprogram for which no pragma All_Calls_Remote applies, store the
        address of the real subprogram in the underlying record type, so local
        dereferences do not go through the PCS.

2004-04-26  Robert Dewar  <dewar@gnat.com>

        * i-c.ads: Add some type qualifications to avoid ambiguities when
        compiling with s-auxdec.ads and a non-private address type.

2004-04-26  Arnaud Charlet  <charlet@act-europe.fr>

        * Makefile.rtl: Fix error in previous check-in:
        Add s-addope.o to non tasking object list (rather than tasking object
        list).

2004-04-26  Javier Miranda  <miranda@gnat.com>

        * sem_aggr.adb: Fix typo in comments
        (Resolve_Aggr_Expr): Propagate the type to the nested aggregate.
        Required to check the null-exclusion attribute.

        * sem_attr.adb (Resolve_Attribute): Check the accessibility level in
        case of anonymous access types in record and array components. For a
        component definition the level is the same of the enclosing composite
        type.

        * sem_ch3.adb (Analyze_Component_Declaration): In case of components
        that are anonymous access types the level of accessibility depends on
        the enclosing type declaration. In order to have this information, set
        the scope of the anonymous access type to the enclosing record type
        declaration.
        (Array_Type_Declaration): In case of components that are anonymous
        access types the level of accessibility depends on the enclosing type
        declaration. In order to have this information, set the scope of the
        anonymous access type to the enclosing array type declaration.

        * sem_ch3.adb (Array_Type_Declaration): Set the scope of the anonymous
        access type.

        * sem_ch8.adb (Analyze_Object_Renaming): Add check to verify that
        renaming of anonymous access-to-constant types allowed if and only if
        the renamed object is access-to-constant.

        * sem_util.adb (Type_Access_Level): In case of anonymous access types
        that are component_definition or discriminants of a nonlimited type,
        the level is the same as that of the enclosing component type.

2004-04-26  Sergey Rybin  <rybin@act-europe.fr>

        * sem_elim.adb: Some minor code reorganization from code reading. Fix
        misprint in the function name (File_Name_Match).

2004-04-23  Laurent Guerby  <laurent@guerby.net>

        * Makefile.in: Remove RANLIB_TEST, use -$(RANLIB) including after
        install.

2004-04-23  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * Make-lang.in (GNATBIND_OBJS): Add s-addope.o.

2004-04-23  Emmanuel Briot  <briot@act-europe.fr>

        * adaint.c (__gnat_try_lock): No longer requires that the parent
        directory be writable, the directory itself is enough.
        (gnat_is_absolute_path): Change profile, so that the call from
        GNAT.OS_Lib can be made more efficient.

        * adaint.h (gnat_is_absolute_path): Change profile, so that the call
        from GNAT.OS_Lib can be made more efficient.

        * g-os_lib.adb (Is_Absolute_Path): More efficient implementation, avoid
        one copy of the file name. Found by code reading.

2004-04-23  Vincent Celier  <celier@gnat.com>

        * gnat_ugn.texi: Add documentation for gnatmake switch -eL
        Correct documentation on gnatmake switches transmitted to the compiler

        * ali.ads: Minor comment fix

2004-04-23  Javier Miranda  <miranda@gnat.com>

        * sem_ch6.adb: (Confirming Types): Code cleanup

        * decl.c (gnat_to_gnu_entity): Give support to anonymous access to
        subprogram types: E_Anonymous_Access_Subprogram_Type and
        E_Anonymous_Access_Protected_Subprogram_Type.

2004-04-23  Thomas Quinot  <quinot@act-europe.fr>

        * sem_dist.adb: Add a new paramter to the RAS_Access TSS indicating
        whether a pragma All_Calls_Remote applies to the subprogram on which
        'Access is taken.
        No functional change is introduced by this revision; the new parameter
        will be used to allow calls to local RCI subprograms to be optimized
        to not use the PCS in the case where no pragma All_Calls_Remote applies,
        as is already done in the PolyORB implementation of the DSA.

        * exp_dist.adb: Add a new paramter to the RAS_Access TSS indicating
        whether a pragma All_Calls_Remote applies to the subprogram on which
        'Access is taken.
        No functional change is introduced by this revision; the new parameter
        will be used to allow calls to local RCI subprograms to be optimized
        to not use the PCS in the case where no pragma All_Calls_Remote applies,
        as is already done in the PolyORB implementation of the DSA.

2004-04-23  Robert Dewar  <dewar@gnat.com>

        * Makefile.rtl: Add entry for s-addope.o in run time library list
        * Make-lang.in: Add entry for s-addope.o to GNAT1 objects
        * s-addope.ads, s-addope.adb: New files.

        * s-carsi8.adb, s-carun8.adb, s-casi16.adb, s-casi32.adb,
        s-casi64.adb, s-caun16.adb, s-caun32.adb, s-caun64.adb,
        s-finimp.adb, s-geveop.adb, s-stoele.adb: Modifications to allow
        System.Address to be non-private and signed.

        * sem_elim.adb: Minor reformatting (fairly extensive)
        Some minor code reorganization from code reading
        Add a couple of ??? comments

2004-04-23  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (tree_transform, build_unit_elab): Don't call getdecls.
        (tree_transform, case N_If_Statement): Remove non-determinism.

        * utils.c (begin_subprog_body): Just set DECL_CONTEXT in PARM_DECL.

2004-04-23  Sergey Rybin  <rybin@act-europe.fr>

        * gnat_rm.texi: Small fixes in the changes made in the 'pragma
        Eliminate' section.

        * snames.ads, snames.adb: Remove Name_Homonym_Number (Homonym_Number is
        no longer used as a parameter name for Eliminate pragma).

2004-04-22  Laurent Guerby  <laurent@guerby.net>

        PR optimization/14984
        PR optimization/14985
        * trans.c (gigi): Fix non determinism leading to bootstrap
        comparison failures.

2004-04-21  Pascal Obry  <obry@gnat.com>

        * adaint.c (__gnat_portable_spawn): Quote first argument (argv[0])
        passed to spawnvp() to properly handle program pathname with spaces on
        Win32.

2004-04-21  Emmanuel Briot  <briot@act-europe.fr>

        * g-debpoo.adb (Print_Info): Avoid extra work if Display_Slots is False.
        (Allocate, Deallocate, Free_Physically): Make sure the tasks are
        unlocked in case of exceptions.

2004-04-21  Joel Brobecker  <brobecker@gnat.com>

        * gigi.h (get_target_no_dollar_in_label): Remove extern declaration.
        This function does not exist anymore.

2004-04-21  Thomas Quinot  <quinot@act-europe.fr>

        * gnatbind.adb, gnatlink.adb: Update name of imported C symbol.

        * link.c: Move variables to the __gnat name space.

        * Makefile.in: list link.o explicitly when needed.

        * mlib.adb: Remove pragma Linker_Option for "link.o" from mlib.

2004-04-21  Javier Miranda  <miranda@gnat.com>

        * einfo.adb (Original_Access_Type): New subprogram
        (Set_Original_Access_Type): New subprogram
        (Write_Field21_Name): Write the name of the new field

        * einfo.ads (Original_Access_Type): New field present in access to
        subprogram types.
        Addition of two new entities: E_Anonymous_Access_Subprogram_Type, and
        E_Anonymous_Access_Protected_Subprogram_Type.

        * lib-xref.adb (Output_One_Ref): Give support to anonymous access to
        subprogram types.

        * lib-xref.ads (Xref_Entity_Letters): Initialize values corresponding
        to anonymous access to subprogram types.

        * sem_attr.adb (Resolve_Attribute): Give support to anonymous access
        to subprogram types.

        * sem_ch3.adb (Access_Definition): Complete decoration of entities
        corresponding to anonymous access to subprogram types.
        (Analyze_Component_Declaration): Add new actual to the call to
        subprogram replace_anonymous_access_to_protected_subprogram.
        (Array_Type_Declaration): Add new actual to the call to subprogram
        replace_anonymous_access_to_protected_subprogram.
        (Process_Discriminants): Add new actual to the call to subprogram
        replace_anonymous_access_to_protected_subprogram.
        (Replace_Anonymous_Access_To_Protected_Subprogram): New formal.

        * sem_ch3.ads (Replace_Anonymous_Access_To_Protected_Subprogram): New
        formal.

        * sem_ch6.adb, sem_type.adb, sem_res.adb: Give support to anonymous
        access to subprogram types.

        * sem_util.adb (Has_Declarations): Addition of package_specification
        nodes.

2004-04-21  Ed Schonberg  <schonberg@gnat.com>

        * sem_prag.adb (Make_Inline): If subprogram is a renaming, propagate
        inlined flags to renamed entity only if in current unit.

2004-04-21  Thomas Quinot  <quinot@act-europe.fr>

        * s-parint.ads: Add DSA implementation marker.

        * rtsfind.ads, rtsfind.adb, snames.ads, snames.adb, s-rpc.adb: Use the
        value of System.Partition_Interface.DSA_Implementation to determine
        what version of the distributed systems annex is available (no
        implementation, GLADE, or PolyORB).

2004-04-21  Joel Brobecker  <brobecker@gnat.com>

        * targtyps.c (get_target_no_dollar_in_label): Remove, no longer used.

2004-04-21  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * utils.c (convert, case CONSTRUCTOR, COMPONENT_REF): Do not make node
        with new type if alias sets differ.
        Fixes ACATS c41103b.

2004-04-21  Vincent Celier  <celier@gnat.com>

        * prj.ads: Remove FORTRAN as an accepted language: not tested yet.
        Add array Lang_Args for the language specific compiling argument
        switches.

        * gnat_ugn.texi: Explain in more details when a library is rebuilt.

2004-04-21  Sergey Rybin  <rybin@act-europe.fr>

        * gnat_rm.texi: Update the descripton of the Eliminate pragma
        according to the recent changes in the format of the parameters of the
        pragma (replacing Homonym_Number with Source_Location).

2004-04-19  Arnaud Charlet  <charlet@act-europe.fr>

        * 5isystem.ads: Removed, unused.

        * gnat_rm.texi: Redo 1.13 change.

2004-04-19  Robert Dewar  <dewar@gnat.com>

        * s-stoele.ads: Clean up definition of Storage_Offset (the new
        definition is cleaner, avoids the kludge of explicit Standard operator
        references, and also is consistent with a visible System.Address with
        no visible operations.

        * s-geveop.adb: Add declarations to avoid assumption of visible
        operations on type System.Address (since these might not be available
        if Address is a non-private type for which the operations
        are made abstract).

        * sem_eval.adb: Minor reformatting

        * s-carsi8.ads, s-carun8.ads, s-casi16.ads, s-casi32.ads,
        s-casi64.ads, s-caun16.ads, s-caun32.ads, s-caun64.ads: Minor
        reformatting (new function spec format).

        * s-auxdec.adb, s-carsi8.adb, s-carun8.adb, s-casi16.adb,
        s-casi32.adb, s-casi64.adb, s-caun16.adb, s-caun32.adb,
        s-caun64.adb: Add declarations to avoid assumption of visible
        operations on type System.Address (since these might not be available
        if Address is a non-private type for which the operations are made
        abstract).

        * lib.ads, lib.adb (Synchronize_Serial_Number): New procedure.

        * exp_intr.adb: Minor comment update

        * exp_aggr.adb, exp_attr.adb, exp_ch13.adb: Minor reformatting.

        * 5omastop.adb: Add declarations to avoid assumption of visible
        operations on type System.Address (since these might not be available
        if Address is a non-private type for which the operations
        are made abstract).

2004-04-19  Vincent Celier  <celier@gnat.com>

        * switch-m.adb: (Scan_Make_Switches): Process new switch -eL

        * prj-pars.ads (Parse): New Boolean parameter Process_Languages,
        defaulted to Ada.

        * prj-proc.adb (Process): New Boolean parameter Process_Languages,
        defaulted to Ada.
        Call Check with Process_Languages.
        (Check): New Boolean parameter Process_Languages. Call Recursive_Check
        with Process_Languages.
        (Recursive_Check): New Boolean parameter Process_Languages. Call
        Nmsc.Ada_Check or Nmsc.Other_Languages_Check according to
        Process_Languages.

        * prj-proc.ads (Process): New Boolean parameter Process_Languages,

        * prj-util.ads, prj-util.adb (Executable_Of): New Boolean
        parameter Ada_Main, defaulted to True.
        Check for Ada specific characteristics only when Ada_Main is True.

        * opt.ads: (Follow_Links): New Boolean flag for gnatmake

        * prj.adb: (Project_Empty): Add new Project_Data components.

        * prj.ads: New types and tables for non Ada languages.
        (Project_Data): New components Languages, Impl_Suffixes,
        First_Other_Source, Last_Other_Source, Imported_Directories_Switches,
        Include_Path, Include_Data_Set.

        * prj-env.ads, prj-env.adb: Minor reformatting

        * prj-nmsc.ads, prj-nmsc.adb: (Other_Languages_Check): New procedure
        Put subprograms in alphabetical order

        * prj-pars.adb (Parse): New Boolean parameter Process_Languages,
        defaulted to Ada; Call Prj.Proc.Process with Process_Languages and
        Opt.Follow_Links.

        * mlib-prj.adb: Back out modification in last version, as they are
        incorrect.
        (Build_Library.Check_Libs): Remove useless pragma Warnings (Off)

        * make.adb: (Mains): Moved to package Makeutl
        (Linker_Opts): Moved to package Makeutl
        (Is_External_Assignment): Moved to package Makeutl
        (Test_If_Relative_Path): Moved to package Makeutl
        (Gnatmake): Move sorting of linker options to function
        Makeutl.Linker_Options_Switches.

        * makeutl.ads, makeutl.adb: New files.

        * Makefile.in: Add makeutl.o to the object files for gnatmake

        * makeusg.adb: Add line for new switch -eL.

        * gnatls.adb (Image): New function.
        (Output_Unit): If in verbose mode, output the list of restrictions
        specified by pragmas Restrictions.

        * 5bml-tgt.adb, 5vml-tgt.adb (Build_Dynamic_Library): Do not use
        Text_IO.

        * a-calend.adb (Split): Shift the date by multiple of 56 years, if
        needed, to put it in the range 1970 (included) - 2026 (excluded).
        (Time_Of): Do not shift Unix_Min_Year (1970).
        Shift the date by multiple of 56 years, if needed, to put it in the
        range 1970 (included) - 2026 (excluded).

        * adaint.h, adaint.c (__gnat_set_executable): New function.

2004-04-19  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (tree_transform, case N_Subprogram_Body): Temporarily push
        and pop GC context.
        (tree_transform, case N_Procedure_Call): Fix typo in setting TREE_TYPE.
        (tree_transform, case N_Label): Don't set LABEL_STMT_FIRST_IN_EH.
        (tree_transform, case N_Procedure_Call_Statement): Build a tree.
        (tree_transform, case N_Code_Statement): Likewise.
        (gnat_expand_stmt, case LABEL_STMT): Don't look at
        LABEL_STMT_FIRST_IN_EH.
        (gnat_expand_stmt, case ASM_STMT): New case.

        * utils2.c (build_unary_op): Properly set TREE_READONLY of
        UNCONSTRAINED_ARRAY_REF.

        * utils.c (poplevel): Temporarily push/pop GC context around inline
        function expansion.

        * decl.c (maybe_variable): Properly set TREE_READONLY of
        UNCONSTRAINED_ARRAY_REF.
        (make_packable_type): Only reference TYPE_IS_PADDING_P for RECORD_TYPE.

        * ada-tree.def: (ASM_STMT): New.

        * ada-tree.h: (LABEL_STMT_FIRST_IN_EH): Deleted.
        (ASM_STMT_TEMPLATE, ASM_STMT_OUTPUT, ASM_STMT_ORIG_OUT,
        ASM_STMT_INPUT): New.
        (ASM_STMT_CLOBBER): Likewise.

2004-04-19  Thomas Quinot  <quinot@act-europe.fr>

        * a-except.adb, s-parint.ads, s-parint.adb, types.ads, types.h: Use
        general rcheck mechanism to raise Program_Error for E.4(18), instead
        of a custom raiser in System.Partition_Interface.
        Part of general cleanup work before PolyORB integration.

        * snames.ads, snames.adb: Add new runtime library entities and names
        for PolyORB DSA.

        * sem_dist.ads, sem_dist.adb (Get_Subprogram_Id): Move from sem_dist to
        exp_dist.
        (Build_Subprogram_Id): New subprogram provided by exp_dist
        Code reorganisation in preparation for PolyORB integration.

        * exp_dist.ads, exp_dist.adb (Get_Subprogram_Id): Move from sem_dist to
        exp_dist.
        (Build_Subprogram_Id): New subprogram provided by exp_dist

        * sem_ch4.adb (Analyze_One_Call): Fix error message for mismatch in
        actual parameter types for call to dereference of an
        access-to-subprogram type.

        * rtsfind.ads: Add new runtime library entities and names for PolyORB
        DSA.

        * gnatlink.adb (Value): Remove. Use Interfaces.C.Strings.Value
        instead, which has the same behaviour here since we never pass it a
        NULL pointer.

        * link.c (run_path_option, Solaris case): Use -Wl, as for other
        platforms.

        * Makefile.in: adjust object file lists for gnatlink and gnatmake
        to account for new dependency upon Interfaces.C.Strings + link.o
        For x86 FreeBSD, use 86numaux.

        * make.adb, gnatcmd.adb: Linker_Library_Path_Option has been moved up
        from Mlib.Tgt to Mlib.

        * mlib.ads, mlib.adb (Linker_Library_Path_Option): New subprogram, now
        target-independent.

        * mlib-tgt.ads, mlib-tgt.adb (Linker_Library_Path_Option): Remove
        target-specific versions of this subprogram, now implemented as a
        target-independent function in Mlib.

        * 5aml-tgt.adb, 5bml-tgt.adb, 5gml-tgt.adb, 5hml-tgt.adb, 5lml-tgt.adb,
        5sml-tgt.adb, 5vml-tgt.adb, 5zml-tgt.adb, 5wml-tgt.adb
        (Linker_Library_Path_Option): Remove target-specific versions of this
        subprogram, now implemented as a target-independent function in Mlib.

        * atree.adb: (Allocate_Initialize_Node): New subprogram.
        Factors out node table slots allocation.
        (Fix_Parents): New subprogram.
        Encapsulate the pattern of fixing up parent pointers for syntactic
        children of a rewritten node.
        (New_Copy_Tree): Use New_Copy to copy non-entity nodes.
        (Rewrite): Use New_Copy when creating saved copy of original node.
        (Replace): Use Copy_Node to copy nodes.

2004-04-19  Javier Miranda  <miranda@gnat.com>

        * sprint.adb (Sprint_Node_Actual): Give support to the new
        Access_To_Subprogram node available in Access_Definition nodes. In
        addition, give support to the AI-231 node fields: null-exclusion,
        all-present, constant-present.

        * sem_util.ads, sem_util.adb: (Has_Declarations): New subprogram

        * sinfo.ads, sinfo.adb:
        New field Access_To_Subprogram_Definition in Access_Definition nodes

        * sem_ch6.adb (Process_Formals): Move here the code that creates and
        decorates internal subtype declaration corresponding to the
        null-excluding formal. This code was previously in Set_Actual_Subtypes.
        In addition, carry out some code cleanup on this code. In case of
        access to protected subprogram call
        Replace_Anonymous_Access_To_Protected_Subprogram.
        (Set_Actual_Subtypes): Code cleanup.

        * sem_ch8.adb (Analyze_Object_Renaming): Remove un-necessary call to
        Find_Type in case of anonymous access renamings. Add warning in case of
        null-excluding attribute used in anonymous access renaming.

        * sem_ch3.ads (Replace_Anonymous_Access_To_Protected_Subprogram): New
        subprogram

        * sem_ch3.adb (Replace_Anonymous_Access_To_Protected_Subprogram): New
        subprogram.
        (Access_Definition): In case of anonymous access to subprograms call
        the corresponding semantic routine to decorate the node.
        (Access_Subprogram_Declaration): Addition of some comments indicating
        some code that probably should be added here. Detected by comparison
        with the access_definition subprogram.
        (Analyze_Component_Declaration): In case of access to protected
        subprogram call Replace_Anonymous_Access_To_Protected.
        (Array_Type_Declaration): In case of access to protected subprogram call
        Replace_Anonymous_Access_To_Protected_Subprogram.
        (Process_Discriminants): In case of access to protected subprogram call
        Replace_Anonymous_Access_To_Protected_Subprogram.

        * par.adb (P_Access_Definition): New formal that indicates if the
        null-exclusion part was present.
        (P_Access_Type_Definition): New formal that indicates if the caller has
        already parsed the null-excluding part.

        * par-ch3.adb (P_Subtype_Declaration): Code cleanup.
        (P_Identifier_Declarations): Code cleanup and give support to renamings
        of anonymous access to subprogram types.
        (P_Derived_Type_Def_Or_Private_Ext_Decl): Code cleanup.
        (P_Array_Type_Definition): Give support to AI-254.
        (P_Component_Items): Give support to AI-254.
        (P_Access_Definition): New formal that indicates if the header was
        already parsed by the caller.
        (P_Access_Type_Definition): New formal that indicates if the caller has
        already parsed the null-excluding part.

        * par-ch6.adb (P_Formal_Part): Add the null-excluding parameter to the
        call to P_Access_Definition.

2004-04-19  Geert Bosch  <bosch@gnat.com>

        * checks.adb (Apply_Float_Conversion_Check): New procedure to implement
        the delicate semantics of floating-point to integer conversion.
        (Apply_Type_Conversion_Checks): Use Apply_Float_Conversion_Check.

        * eval_fat.adb (Machine_Mantissa): Moved to spec.
        (Machine_Radix): New function.

        * eval_fat.ads (Machine_Mantissa): Moved from body for use in
        conversion checks.
        (Machine_Radix): New function also for use in conversion checks.

2004-04-19  Ed Schonberg  <schonberg@gnat.com>

        * par-prag.adb (Source_File_Name_Project): Fix typo in error message.

        * exp_ch9.adb (Expand_Access_Protected_Subprogram_Type): Call analyze
        to decorate the access-to-protected subprogram and the equivalent type.

        * checks.adb (Null_Exclusion_Static_Checks): Code cleanup. Give support
        to anonymous access to subprogram types.

        * exp_ch4.adb (Expand_N_In): Preserve Static flag before
        constant-folding, for legality checks in contexts that require an RM
        static expression.

        * exp_ch6.adb (Expand_N_Function_Call): If call may generate large
        temporary but stack checking is not enabled, increment serial number
        to so that symbol generation is consistent with and without stack
        checking.

        * exp_util.ads, exp_util.adb (May_Generate_Large_Temp): Predicate is
        independent on whether stack checking is enabled, caller must check
        the corresponding flag.

        * sem_ch3.adb (Constrain_Index): Index bounds given by attributes need
        range checks.
        (Build_Derived_Concurrent_Type): Inherit Is_Constrained flag from
        parent if it has discriminants.
        (Build_Derived_Private_Type): Constructed full view does
        not come from source.
        (Process_Discriminants): Default discriminants on a tagged type are
        legal if this is the internal completion of a private untagged
        derivation.

        * sem_ch6.adb (Set_Actual_Subtypes): The generated declaration needs
        no constraint checks, because it corresponds to an existing object.

        * sem_prag.adb (Process_Convention): Pragma applies
        only to subprograms in the same declarative part, i.e. the same unit,
        not the same scope.

        * sem_res.adb (Valid_Conversion): In an instance or inlined body,
        ignore type mismatch on a numeric conversion if expression comes from
        expansion.

2004-04-19  Sergey Rybin  <rybin@act-europe.fr>

        * sem_elim.adb (Process_Eliminate_Pragma): Remove the processing for
        Homonym_Number parameter, add processing for Source_Location parameter
        corresponding.
        (Check_Eliminated): Remove the check for homonym numbers, add the check
        for source location traces.

        * sem_elim.ads (Process_Eliminate_Pragma): Replace Arg_Homonym_Number
        with Arg_Source_Location corresponding to the changes in the format of
        the pragma.

        * sem_prag.adb: (Analyze_Pragma): Changes in the processing of
        Eliminate pragma corresponding to the changes in the format of the
        pragma: Homonym_Number is replaced with Source_Location, two ways of
        distinguishing homonyms are mutially-exclusive.

2004-04-19  Joel Brobecker  <brobecker@gnat.com>

        * get_targ.ads (Get_No_Dollar_In_Label): Remove.

        * exp_dbug.adb (Output_Homonym_Numbers_Suffix): Remove use of
        No_Dollar_In_Label, no longer necessary, as it is always True.
        (Strip_Suffixes): Likewise.

2004-04-19  Gary Dismukes  <dismukes@gnat.com>

        * s-stalib.ads (type Exception_Code): Use Integer'Size for exponent of
        modulus for compatibility with size clause on targets with 16-bit
        Integer.

        * layout.adb (Discrimify): In the case of private types, set Vtyp to
        full type to fix type mismatches on calls to size functions for
        discriminant-dependent array components.

2004-04-19  Jerome Guitton  <guitton@act-europe.fr>

        * Makefile.in (gnatlib-zcx): New target, for building a ZCX run-time
        lib.

2004-04-19  Pascal Obry  <obry@gnat.com>

        * mdll-utl.adb (Locate): New version is idempotent.

2004-04-17  Laurent Guerby  <laurent@guerby.net>

        PR ada/14988 (partial)
        * impunit.adb: Fix typo.

2004-04-14  Nathanael Nerode  <neroden@gcc.gnu.org>

        * Make-lang.in: Remove obsolete rts-none, rts-cert, install-rts-none,
        and install-rts-cert targets.  Remove all gnatlib and gnattools
        targets and all other rts-* targets (moved to libada).  Remove (now)
        unused Make variables CHMOD, CHMOD_AX_FLAGS, shext, THREAD_KIND,
        TRACE, GNATLIBFLAGS, GNATLIBCFLAGS.

2004-04-08  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (tree_transform): Shortcut returning error_mark_node for
        statements in annotate_only_mode.
        (tree_transform, case N_Label, case N_Return_Statement,
        N_Goto_Statement): Make statement tree instead of generating code.
        (tree_transform, case N_Assignment_Statement): No longer check
        type_annotate_only.
        (gnat_expand_stmt, case GOTO_STMT, case LABEL_STMT, case
        RETURN_STMT): New.
        (first_nondeleted_insn, build_block_stmt, make_expr_stmt_from_rtl):
        New fcns.
        (gnat_to_gnu): Collect any RTL generated and deal with it.
        (tree_transform, case N_And_Then): Refine when have non-null RTL_EXPR.
        (tree_transform case N_If_Statement): Rewrite to make IF_STMT.
        (gnat_expand_stmt, case BLOCK_STMT, IF_STMT): New cases.

        * ada-tree.def (GOTO_STMT, LABEL_STMT, RETURN_STMT): New tree nodes.

        * ada-tree.def (EXPR_STMT): Fix typo in name.
        (BLOCK_STMT, IF_STMT): New nodes.

        * ada-tree.h (GOTO_STMT_LABEL, LABEL_STMT_LABEL,
        LABEL_STMT_FIRST_IN_EH): New macros.
        (RETURN_STMT_EXPR): Likewise.

        * ada-tree.h: (BLOCK_STMT_LIST, IF_STMT_COND, IF_STMT_TRUE,
        IF_STMT_ELSEIF, IF_STMT_ELSE): New macros.

2004-04-08  Thomas Quinot  <quinot@act-europe.fr>

        * atree.ads: Correct documentation on extended nodes.

        * link.c: Set run_path_option for FreeBSD.

2004-04-08  Vincent Celier  <celier@gnat.com>

        * mlib-prj.adb (Build_Library.Check_Libs): On OpenVMS, if dec.ali is
        one of the ALI file, do not link with DEC lib.

        * par.adb Remove the last two characters ("%s" or "%b") when checking
        if a language defined unit may be recompiled.

2004-04-08  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch4.adb (Remove_Abstract_Operations): Improve error message when
        removal of abstract operation leaves no possible interpretation for
        expression.

        * sem_eval.adb (Eval_Qualified_Expression): Use
        Set_Raises_Constraint_Error on node when needed, so that it does not
        get optimized away by subsequent optimizations.

        * sem_res.adb (Resolve_Intrinsic_Operator): Save interpretations of
        operands even when they are not wrapped in a type conversion.

2004-04-08  Olivier Hainque  <hainque@act-europe.fr>

        * sem_prag.adb (Set_Exported): Warn about making static as result of
        export only when the export is coming from source. This may be not
        be true e.g. on VMS where we expand export pragmas for exception codes
        together with imported or exported exceptions, and we don't want the
        user to be warned about something he didn't write.

2004-04-08  Thomas Quinot  <quinot@act-europe.fr>

        * sem_util.adb (Note_Possible_Modification): Reorganize to remove code
        duplication between normal entities and those declared as renamings.
        No functional change.

        * s-fileio.ads (Form): Remove pragma Inline, as we cannot currently
        inline functions returning an unconstrained result.

2004-04-08  Eric Botcazou  <ebotcazou@act-europe.fr>

        * utils.c (type_for_mode): Handle BLKmode and VOIDmode properly, to
        conform to what other front-ends do.

2004-04-08  Doug Rupp  <rupp@gnat.com>

        * 5vml-tgt.adb: Use Gas instead of VMS Macro to build auto init shared
        libraries.

2004-04-06  Pascal Obry  <obry@gnat.com>

        * adaint.c (DIR_SEPARATOR): Properly set DIR_SEPARATOR on Win32.

        * osint.adb (Program_Name): Do not look past a directory separator.

2004-04-06  Thomas Quinot  <quinot@act-europe.fr>

        * atree.adb: Update comment (Rewrite_Substitute_Node no longer exists).

        * exp_ch6.adb (Rewrite_Function_Call): Clarify documentation of
        requirement for preserving a copy of the original assignment node.

        * sinfo.ads: Update comment (Original_Tree -> Original_Node).

2004-04-06  Olivier Hainque  <hainque@act-europe.fr>

        (__gnat_initialize [Vxworks]): Enable references to the crtstuff bits
        when supported.

2004-04-06  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch4.adb (Remove_Abstract_Operations): Extend previous changes to
        operator calls in functional notation, and apply
        Universal_Interpretation to operands, not to their type.

2004-04-06  Robert Dewar  <dewar@gnat.com>

        * 5wdirval.adb: Minor reformatting

2004-04-06  Ed Falis  <falis@gnat.com>

        * gnat_rm.texi: Improve a reference to the GCC manual

2004-04-05  Vincent Celier  <celier@gnat.com>

        * adaint.h, adaint.c: Add function __gnat_named_file_length

        * impunit.adb: Add Ada.Directories to the list

        * Makefile.in: Add VMS and Windows versions of
        Ada.Directories.Validity package body.

        * Makefile.rtl: Add a-direct and a-dirval

        * mlib-tgt.ads: Minor comment update.

        * a-dirval.ads, a-dirval.adb, 5vdirval.adb, 5wdirval.adb,
        a-direct.ads, a-direct.adb: New files.

2004-04-05  Vincent Celier  <celier@gnat.com>

        PR ada/13620
        * make.adb (Scan_Make_Arg): Pass any -fxxx switches to gnatlink, not
        just to the compiler.

2004-04-05  Robert Dewar  <dewar@gnat.com>

        * a-except.adb (Exception_Name_Simple): Make sure lower bound of
        returned string is 1.

        * ali-util.adb: Use proper specific form for Warnings (Off, entity)

        * eval_fat.ads: Minor reformatting

        * g-curexc.ads: Document that lower bound of returned string values
        is always one.

        * gnatlink.adb: Add ??? comment for previous change
        (need to document why this is VMS specific)

        * s-stoele.ads: Minor reformatting

        * tbuild.ads: Minor reformatting throughout (new function specs)

        * par-ch10.adb (P_Context_Clause): Handle comma instead of semicolon
        after WITH.

        * scng.adb: Minor reformatting

2004-04-05  Geert Bosch  <bosch@gnat.com>

        * eval_fat.adb (Machine): Remove unnecessary suppression of warning.
        (Leading_Part): Still perform truncation to machine number if the
        specified radix_digits is greater or equal to machine_mantissa.

2004-04-05  Javier Miranda  <miranda@gnat.com>

        * par-ch3.adb: Complete documentation of previous change
        Correct wrong syntax documentation of the OBJECT_DECLARATION rule
        (aliased must appear before constant).

        * par-ch4.adb: Complete documentation of previous change.

        * par-ch6.adb: Complete documentation of previous change.

        * sinfo.ads: Fix typo in commment.

2004-04-05  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch3.adb (Inherit_Components): If derived type is private and has
        stored discriminants, use its discriminants to constrain parent type,
        as is done for non-private derived record types.

        * sem_ch4.adb (Remove_Abstract_Operations): New subprogram to implement
        Ada 2005 AI-310: an abstract non-dispatching operation is not a
        candidate interpretation in an overloaded call.

        * tbuild.adb (Unchecked_Convert_To): Preserve conversion node if
        expression is Null and target type is not an access type (e.g. a
        non-private address type).

2004-04-05  Thomas Quinot  <quinot@act-europe.fr>

        * exp_ch6.adb (Rewrite_Function_Call): When rewriting an assignment
        statement whose right-hand side is an inlined call, save a copy of the
        original assignment subtree to preserve enough consistency for
        Analyze_Assignment to proceed.

        * sem_ch5.adb (Analyze_Assignment): Remove a costly copy of the
        complete assignment subtree which is now unnecessary, as the expansion
        of inlined call has been improved to preserve a consistent assignment
        tree.  Note_Possible_Modification must be called only
        after checks have been applied, or else unnecessary checks will
        be generated.

        * sem_util.adb (Note_Possible_Modification): Reorganise the handling
        of explicit dereferences that do not Come_From_Source:
         - be selective on cases where we must go back to the dereferenced
           pointer (an assignment to an implicit dereference must not be
           recorded as modifying the pointer);
         - do not rely on Original_Node being present (Analyze_Assignment
           calls Note_Possible_Modification on a copied tree).

        * sem_warn.adb (Check_References): When an unset reference to a pointer
        that is never assigned is encountered, prefer '<pointer> may be null'
        warning over '<pointer> is never assigned a value'.

2004-04-05  Ramon Fernandez  <fernandez@gnat.com>

        * tracebak.c: Change STOP_FRAME in ppc vxworks to be compliant with
        the ABI.

2004-04-05  Olivier Hainque  <hainque@act-europe.fr>

        * 5gmastop.adb (Pop_Frame): Comment out the pragma Linker_Option for
        libexc. We currently don't reference anything in this library and
        linking it in triggers linker warnings we don't want to see.

        * init.c: Update comments.

2004-04-05  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (gnat_to_gnu_entity): Use TYPE_READONLY.
        * utils.c (create_field_decl): Likewise.
        * utils2.c (build_unary_op, gnat_build_constructor): Likewise.

2004-04-02  Arnaud Charlet  <charlet@act-europe.fr>

        * gnat-style.texi, gnat_rm.texi, gnat_ugn.texi: Remove RCS tags.
        Replace ifinfo by ifnottex, to make makeinfo --html happy again.
        Add info directory entry and category.

2004-04-02  Jan Hubicka  <jh@suse.cz>

        * utils.c: Include function.h
        (end_subprog_body): Clear DECL_STRUCT_FUNCTION.

2004-04-01  Arnaud Charlet  <charlet@act-europe.fr>

        PR ada/14150
        * Make-lang.in: Clean up generation of documentation

        * gnat-style.texi, gnat_rm.texi, ug_words: Resync with AdaCore version

        * xgnatug.adb: Removed, replaced by xgnatugn.adb

        * xgnatugn.adb: Replaces xgnatug.adb

        * gnat_ug.texi: Removed, replaced by gnat_ugn.texi

        * gnat_ugn.texi: Replaces gnat_ug.texi. Resync with AdaCore version

        * gnat_ug_unx.texi, gnat_ug_vms.texi, gnat_ug_vxw.texi,
        gnat_ug_wnt.texi: Removed.

2004-04-01  Arnaud Charlet  <charlet@act-europe.fr>

        * utils2.c: Update copyright notice.

2004-04-01  Robert Dewar  <dewar@gnat.com>

        * checks.adb: Minor reformatting throughout
        Note that prev checkin added RM reference to alignment warning

2004-04-01  Ed Schonberg  <schonberg@gnat.com>

        * exp_aggr.adb (Get_Component_Val): Treat a string literal as
        non-static when building aggregate for bit-packed array.

        * exp_ch4.adb (Expand_N_Slice): If a packed slice is an actual of a
        function call that is itself the actual in a procedure call, build
        temporary for it.

        * exp_pakd.adb (Expand_Bit_Packed_Element_Set): If right-hand side is
        a string literal, create a temporary for it, constant folding only
        handles scalars here.

2004-04-01  Vincent Celier  <celier@gnat.com>

        * ali-util.adb (Post_Scan, Error_Msg, Error_Msg_S, Error_Msg_SC,
        Error_Msg_SP): New empty procedures to instantiate the Scanner.
        (Style, Scanner): Instantiations of Styleg and Scng to be able to scan
        tokens.
        (Accumulate_Checksum, Initialize_Checksum): Remove procedures.
        (Get_File_Checksum): Use the instantiated scanner to scan all the tokens
        and get the checksum.

        * make.adb (Gnatmake): Do not insert into Q the Main_Source if it is
        already in the Q.
        Increase the Marking_Label at the end of the Multiple_Main_Loop,
        instead of at the beginning.

        * osint.adb (Lib_File_Name): Use Multi_Unit_Index_Character, not '~'
        directly.
        (Osint package elaboration): Change Multi_Unit_Index_Character to '$' if
        on VMS.

        * osint.ads (Multi_Unit_Index_Character): New Character global variable

        * osint-c.adb (Set_Library_Info_Name): Use Multi_Unit_Index_Character,
        not '~' directly.

        * par.adb: Remove test on file name to detect language defined units.
        Add test on unit name, after parsing, to detect language defined units
        that are not compiled with -gnatg (except System.RPC and its children)

        * par-ch10.adb (P_Compilation_Unit): In multi-unit sources, scan the
        following units without style checking.

        * switch-c.adb: Change -gnatC to -gnateI

        * usage.adb: Document new switch -gnateInnn

        * scng.adb (Accumulate_Token_Checksum): New procedure
        (Scan): Call Accumulate_Token_Checksum after each identifier, reserved
        word or literal number.
        (Scan.Nlit.Scan_Integer): Do not accumulate internal '_' in litteral
        numbers.

2004-04-01  Thomas Quinot  <quinot@act-europe.fr>

        * a-tasatt.adb,
        g-comlin.adb, sinput-c.adb, s-secsta.adb, s-tpobop.adb,
        switch-m.adb, 56taprop.adb, 5ginterr.adb, 5gmastop.adb,
        5staprop.adb, 5vinterr.adb, 5vtaprop.adb, 5vtpopde.adb,
        5vtpopde.adb: Add missing 'constant' keywords.

2004-04-01  Javier Miranda  <miranda@gnat.com>

        * par-ch4.adb: (P_Allocator): Code cleanup

        * sem_ch3.adb (Access_Definition): Properly set the null-excluding
        attribute.

        * sinfo.ads: Complete documentation of previous change

2004-04-01  Pascal Obry  <obry@gnat.com>

        * gnatlink.adb (Process_Binder_File): Remove duplicate linker options
        only on VMS.  This special handling was done because an old GNU/ld bug
        on Windows which has been fixed.

2004-04-01  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-03-31  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (gnat_to_gnu_entity, make_type_from_size):
        Use TYPE_UNSIGNED, not TREE_UNSIGNED.
        * trans.c (tree_transform, convert_with_check): Likewise.
        * utils.c (gnat_signed_or_unsigned_type): Likewise.
        (build_vms_descriptor, unchecked_convert): Likewise.
        * utils2.c (nonbinary_modular_operation): Likewise.

2004-03-29  Javier Miranda  <miranda@gnat.com>

        * checks.adb (Null_Exclusion_Static_Checks): New subprogram
        (Install_Null_Excluding_Check): Local subprogram that determines whether
        an access node requires a runtime access check and if so inserts the
        appropriate run-time check.
        (Apply_Access_Check): Call Install_Null_Excluding check if required
        (Apply_Constraint_Check): Call Install_Null_Excluding check if required

        * checks.ads: (Null_Exclusion_Static_Checks): New subprogram

        * einfo.ads: Fix typo in comment

        * exp_ch3.adb (Build_Assignment): Generate conversion to the
        null-excluding type to force the corresponding run-time check.
        (Expand_N_Object_Declaration): Generate conversion to the null-excluding
        type to force the corresponding run-time check.

        * exp_ch5.adb (Expand_N_Assignment_Statement): Generate conversion to
        the null-excluding type to force the corresponding run-time check.

        * exp_ch6.adb (Expand_Call): Do not generate the run-time check in
        case of access types unless they have the null-excluding attribute.

        * sprint.adb (Sprint_Node_Actual): Give support to the null-exclusing
        part.

        * exp_util.ads: Fix typo in comment

        * par.adb (P_Null_Exclusion): New subprogram
        (P_Subtype_Indication): New formal that indicates if the null-excluding
        part has been scanned-out and it was present

        * par-ch3.adb, par-ch4.adb, par-ch6.adb: Give support to AI-231

        * sem_aggr.adb: (Check_Can_Never_Be_Null): New subprogram
        (Aggregate_Constraint_Checks): Generate conversion to the null-excluding
        type to force the corresponding run-time check
        (Resolve_Aggregate): Propagate the null-excluding attribute to the array
        components
        (Resolve_Array_Aggregate): Carry out some static checks
        (Resolve_Record_Aggregate.Get_Value): Carry out some static check

        * sem_ch3.adb (Access_Definition): In Ada 0Y the Can_Never_Be_Null
        attribute must be set only if specified by means of the null-excluding
        part. In addition, we must also propagate the access-constant attribute
        if present.
        (Access_Subprogram_Declaration, Access_Type_Declaration,
        Analyze_Component_Declaration, Analyze_Object_Declaration,
        Array_Type_Declaration, Process_Discriminants,
        Analyze_Subtype_Declaration): Propagate the null-excluding attribute
        and carry out some static checks.
        (Build_Derived_Access_Type): Set the null-excluding attribute
        (Derived_Type_Declaration, Process_Subtype): Carry out some static
        checks.

        * sem_ch4.adb (Analyze_Allocator): Carry out some static checks

        * sem_ch5.adb (Analyze_Assignment): Carry out some static checks

        * sem_ch6.adb (Process_Formals): Carry out some static checks.
        (Set_Actual_Subtypes): Generate null-excluding subtype if the
        null-excluding part was present; it is not required to be done here in
        case of anonymous access types.
        (Set_Formal_Mode): Ada 0Y allows anonymous access to have the null
        value.

        * sem_res.adb (Resolve_Actuals): Carry out some static check
        (Resolve_Null): Allow null in anonymous access

        * sinfo.adb: New subprogram Null_Exclusion_Present
        All_Present and Constant_Present available on access_definition nodes

        * sinfo.ads: New flag Null_Exclusion_Present on subtype_declaration,
        object_declaration, derived_type_definition, component_definition,
        discriminant_specification, access_to_object_definition,
        access_function_definition, allocator, access_procedure_definition,
        access_definition, parameter_specification, All_Present and
        Constant_Present flags available on access_definition nodes.

2004-03-29  Robert Dewar  <dewar@gnat.com>

        * fname.adb, fname.ads, fname-sf.adb, fname-uf.adb, fname-uf.ads,
        gnat1drv.adb, lib.adb, lib.ads, lib-load.adb, lib-writ.adb,
        opt.ads, osint.adb, osint.ads, osint-c.adb, par.adb,
        par-ch10.adb, par-load.adb, par-prag.adb, sfn_scan.adb,
        sfn_scan.ads, sinput-l.adb, sinput-l.ads, switch-c.adb,
        sem_prag.adb: Updates to handle multiple units/file

        * par.adb: Change test for s-rpc to s-rp for detecting rpc and children

        * par.adb, memtrack.adb, prj-makr.adb, prj-part.adb,
        sem_util.adb: Minor reformatting

        * sem_ch12.adb: Add comment for previous change

2004-03-29  Laurent Pautet  <pautet@act-europe.fr>

        * osint.adb (Executable_Prefix): Set Exec_Name to the current
        executable name when not initialized. Otherwise, use its current value.

        * osint.ads (Exec_Name): Move Exec_Name from body to spec in order to
        initialize it to another executable name than the current one. This
        allows to configure paths for an executable name (gnatmake) different
        from the current one (gnatdist).

2004-03-29  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch6.adb (Expand_Call): A call to a function declared in the
        current unit cannot be inlined if it appears in the body of a withed
        unit, to avoid order of elaboration problems in gigi.

        * exp_ch9.adb (Build_Protected_Sub_Specification): Generate debugging
        information for protected (wrapper) operation as well, to simplify gdb
        use.

        * sem_ch6.adb (Analyze_Subprogram_Body): For a private operation in a
        protected body, indicate that the entity for the generated spec comes
        from source, to ensure that references are properly generated for it.
        (Build_Body_To_Inline): Do not inline a function that returns a
        controlled type.

        * sem_prag.adb (Process_Convention): If subprogram is overloaded, only
        apply convention to homonyms that are declared explicitly.

        * sem_res.adb (Make_Call_Into_Operator): If the operation is a function
        that renames an equality operator and the operands are overloaded,
        resolve them with the declared formal types, before rewriting as an
        operator.

2004-03-29  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-03-25  Vasiliy Fofanov  <fofanov@act-europe.fr>

        * memtrack.adb: Log realloc calls, which are treated as free followed
        by alloc.

2004-03-25  Vincent Celier  <celier@gnat.com>

        * prj-makr.adb (Process_Directories): Detect when a file contains
        several units. Do not include such files in the config pragmas or
        in the naming scheme.

        * prj-nmsc.adb (Record_Source): New parameter Trusted_Mode.
        Resolve links only when not in Trusted_Mode.
        (Find_Sources, Recursive_Find_Dirs, Find_Source_Dirs, Locate_Directory):
        Do not resolve links for the display names.

        * prj-part.adb (Parse_Single_Project, Project_Path_Name_Of): Do not
        resolve links when computing the display names.

2004-03-25  Thomas Quinot  <quinot@act-europe.fr>

        * sem_attr.adb (Check_Dereference): When the prefix of a 'Tag
        attribute reference does not denote a subtype, it can be any
        expression that has a classwide type, potentially after an implicit
        dereference.  In particular, the prefix can be a view conversion for
        a classwide type (for which Is_Object_Reference holds), but it can
        also be a value conversion for an access-to-classwide type. In the
        latter case, there is an implicit dereference, and the original node
        for the prefix does not verify Is_Object_Reference.

        * sem_util.adb (Is_Dependent_Component_Of_Mutable_Object): A view
        conversion of a discriminant-dependent component of a mutable object
        is one itself.

2004-03-25  Ed Schonberg  <schonberg@gnat.com>

        * freeze.adb (Freeze_Entity): When an inherited subprogram is
        inherited, has convention C, and has unconstrained array parameters,
        place the corresponding warning on the derived type declaration rather
        than the original subprogram.

        * sem_ch12.adb (Instantiate_Formal_Subprogram): Set From_Default
        indication on renaming declaration, if formal has a box and actual
        is absent.

        * sem_ch8.adb (Analyze_Subprogram_Renaming): Use From_Default flag to
        determine whether to generate an implicit or explicit reference to
        the renamed entity.

        * sinfo.ads, sinfo.adb: New flag From_Default, to indicate that a
        subprogram renaming comes from a defaulted formal subprogram in an
        instance.

2004-03-25  Gary Dismukes  <dismukes@gnat.com>

        * sem_elab.adb (Check_Elab_Call): Refine loop that checks for default
        value expressions to ensure that calls within a component definition
        will be checked (since those are evaluated during the record type's
        elaboration).

2004-03-25  Arnaud Charlet  <charlet@act-europe.fr>

        * s-tpobop.adb: Code clean up:
        (Requeue_Call): Extract from PO_Service_Entries to remove duplicated
        code.
        (PO_Do_Or_Queue): Remove duplicated code and use Requeue_Call.

2004-03-25  Jose Ruiz  <ruiz@act-europe.fr>

        * Makefile.in: Clean up in the ravenscar run time.

2004-03-23  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (gnat_to_gnu_entity, case E_Access_Type): Pass value
        of No_Strict_Aliasing to build_pointer_type_for_mode.
        * utils.c (update_pointer_to): Walk pointer and ref chains.

2004-03-22  Cyrille Comar  <comar@act-europe.fr>

        * ali.ads: Fix Comment about Dynamic_Elab.

        * gnatls.adb (Output_Unit): Add output of many flags (Dynamic_Elab,
        Has_RACW, Is_Generic, etc.)
        (Output_Object, Gnatls): Take into account ALI files not attached to
        an object.

2004-03-22  Vincent Celier  <celier@gnat.com>

        * gprep.adb: Change all String_Access to Name_Id
        (Is_ASCII_Letter): new function
        (Double_File_Name_Buffer): New procedure
        (Preprocess_Infile_Name): New procedure
        (Process_Files): New procedure
        (Gnatprep): Check if output and input are existing directories.
        Call Process_Files to do the real job.

2004-03-22  Robert Dewar  <dewar@gnat.com>

        * prj-env.adb, prj-nmsc.ads, prj-proc.ads,
        s-stache.ads, s-stache.adb: Comment updates. Minor reformatting.

2004-03-22  Sergey Rybin  <rybin@act-europe.fr>

        * scn.adb (Contains): Add check for EOF, is needed for a degenerated
        case when the source contains only comments.

2004-03-22  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch10.adb (Analyze_Compilation_Unit): When generating a
        declaration for a child subprogram body that acts as a spec, indicate
        that the entity in the declaration needs debugging information.

        * sem_ch3.adb (Complete_Private_Subtype): Do not build an underlying
        full view if the subtype is created for a constrained record component;
        gigi has enough information to construct the record, and there is no
        place in the tree for the declaration.

        * sem_ch6.adb (Build_Body_To_Inline): Use an internal name without
        serial number for the dummy body that is built for analysis, to avoid
        inconsistencies in the generation of internal names when compiling
        with -gnatN.

2004-03-22  Thomas Quinot  <quinot@act-europe.fr>

        * sem_util.adb (Is_Object_Reference): A view conversion denotes an
        object.

2004-03-22  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-03-21  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (gnat_to_gnu_entity): Use SUBSTITUTE_PLACEHOLDER_IN_EXPR.
        * trans.c (tree_transform, emit_index_check): Likewise.
        * utils.c (build_template): Likewise.
        (max_size, convert): Remove handling of WITH_RECORD_EXPR.
        (maybe_unconstrained_array, unchecked_convert): Likewise.
        * utils2.c (gnat_truthvalue_conversion, build_binary_op): Likewise.
        (build_unary_op): Likewise.
        (compare_arrays, build_allocator): Use SUBSTITUTE_PLACEHOLDER_IN_EXPR.
        (fill_vms_descriptor): Likewise.
        (build_call_alloc_dealloc): Likewise.
        ALIGN is unsigned.
        * gigi.h (build_call_alloc_dealloc): Alignment is unsigned.

2004-03-20  Joseph S. Myers  <jsm@polyomino.org.uk>

        PR other/14630
        * gnat_ug.texi: Add info directory category and entry.
        * gnat_ug_unx.texi, gnat_ug_vms.texi, gnat_ug_vxw.texi,
        gnat_ug_wnt.texi: Regenerate.

2004-03-19  Arnaud Charlet  <charlet@act-europe.fr>

        * ada-tree.h: Update copyright notice.
        Minor reformatting.

2004-03-19  Olivier Hainque  <hainque@act-europe.fr>

        * decl.c (gnat_to_gnu_entity, case E_Exception): Handle VMS exceptions
        as regular exception objects and not as mere integers representing the
        condition code.  The latter approach required some dynamics to mask off
        severity bits, which did not fit well into the GCC table based model.
        (gnat_to_gnu_entity, objects): Don't supply an external name for VMS
        exception data objects. We don't it and it would conflict with the other
        external symbol we have to generate for such exceptions.

        * trans.c (tree_transform, case N_Exception_Handler): Remove part of
        the special code for VMS exceptions, since these are now represented
        as regular exceptions objects.

2004-03-19 Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (debug_no_type_hash): Remove.
        (gnat_to_gnu_entity, case E_Array_Type): Don't set and clear it.
        * misc.c (LANG_HOOK_HASH_TYPE): Redefine.

2004-03-19  Laurent Guerby  <laurent@guerby.net>

        * sem_prag.adb (Suppress_Unsuppress_Echeck): use loop instead of
        aggregate, allows bootstrap from 3.3 on powerpc-darwin.

2004-03-18  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * ada-tree.h (TYPE_LEFT_JUSTIFIED_MODULAR_P): Add checking.
        (TYPE_CONTAINS_TEMPLATE_P, TYPE_OBJECT_RECORD_TYPE): Likewise.
        (TYPE_RM_SIZE_INT): Directly use type.values.
        (TREE_LOOP_ID): Clean up check.
        * decl.c (gnat_to_gnu_entity, case E_Enumeration_Type): Use
        TYPE_VALUES, not TYPE_FIELDS.
        * trans.c (convert_with_check): Delay access of bounds of basetype
        until sure is numeric.

2004-03-18  Arnaud Charlet  <charlet@act-europe.fr>

        * 5atpopsp.adb: Remove RTEMS from list of platforms using this file.

        Code clean up:
        * 5ataprop.adb, 5ftaprop.adb, 5htaprop.adb, 5itaprop.adb, 5staprop.adb,
        5vtaprop.adb, 5wtaprop.adb, 7staprop.adb (Finalize_TCB): Use
        Specific.Set instead of direct call to e.g pthread_setspecific.

2004-03-18  Thomas Quinot  <quinot@act-europe.fr>

        * adaint.c: Update comments.

        * Makefile.in: set PREFIX_OBJS, SYMLIB, THREADSLIB, and
        GNATLIB_SHARED for FreeBSD.

2004-03-18  Jose Ruiz  <ruiz@act-europe.fr>

        * init.c [VxWorks]: Do not fix the stack size for the environment task.
        When needed (stack checking) the stack size is retrieved
        from the VxWorks kernel.

        * Makefile.in: Flag -nostdinc is required when building the run time
        for avoiding looking for files in the base compiler.
        Add the VxWorks specific version of the package body for
        System.Stack_checking.Operations (5zstchop.adb).

        * Make-lang.in: Add the object file for
        System.Stack_Checking.Operations.

        * Makefile.rtl: Add object file for the package
        System.Stack_Checking.Operations.

        * s-stchop.ads, s-stchop.adb, 5zstchop.adb: New files.

        * s-stache.ads, s-stache.adb: Move the operations related to stack
        checking from this package to package System.Stack_Checking.Operations.
        This way, stack checking operations are only linked in the final
        executable when using the -fstack-check flag.

2004-03-18  Doug Rupp  <rupp@gnat.com>

        * Makefile.in [VMS]: Handle 64 bit specs (5qsystem.ads, 5xcrtl.ads).
        Reorganize ifeq's.

        * 5qsystem.ads, 5xcrtl.ads: New files.

2004-03-18  Vincent Celier  <celier@gnat.com>

        * prj.adb (Reset): Reset hash table Files_Htable

        * prj-env.adb (Source_Paths, Object_Paths): New tables.
        (Add_To_Source_Path, Add_To_Object_Path): New procedures, to replace
        the procedures Add_To_Path_File.
        (Set_Ada_Paths): Accumulate source and object dirs in the tables,
        making sure that each directory is present only once and, for object
        dirs, when a directory already present is added, the duplicate is
        removed and the directory is always put as the last in the table.
        Write the path files at the end of these accumulations.

        * prj-nmsc.adb (Record_Source): Add source file name in hash table
        Files_Htable for all sources.

        * prj-proc.adb (Process): Remove restrictions between not directly
        related extending projects.

2004-03-18  Emmanuel Briot  <briot@act-europe.fr>

        * prj-nmsc.ads, prj-nmsc.adb (Ada_Check): New parameter Trusted_Mode.
        (Find_Sources): Minor speed optimization.

        * prj-proc.ads, prj-proc.adb (Check, Recursive_Check, Process): New
        parameter Trusted_Mode.

2004-03-18  Sergey Rybin  <rybin@act-europe.fr>

        * scn.adb (Determine_License): Take into account a degenerated case
        when the source contains only comments.

2004-03-18  Ed Schonberg  <schonberg@gnat.com>

        * sem_warn.adb (Check_References): For a warning on a selected
        component that does not come from source, locate an uninitialized
        component of the record type to produce a more precise error message.

2004-03-15  Jerome Guitton  <guitton@act-europe.fr>

        * 3zsoccon.ads: Fix multicast options.

        * s-thread.ads: Move unchecked conversion from ATSD_Access to Address
        in the spec.

2004-03-15  Robert Dewar  <dewar@gnat.com>

        * sem_prag.adb: Make sure No_Strict_Aliasing flag is set right when
        pragma used for a private type.

        * lib-xref.adb (Generate_Reference): Do not generate warning if
        reference is in a different unit from the pragma Unreferenced.

        * 5vtpopde.adb: Minor reformatting
        Fix casing of To_Task_ID

        * sem_ch13.adb (Validate_Unchecked_Conversion): Set No_Strict_Aliasing
        flag if we have an unchecked conversion to an access type in the same
        unit.

2004-03-15  Geert Bosch  <bosch@gnat.com>

        * a-ngcoty.adb (Modulus): In alternate formula for large real or
        imaginary parts, use Double precision throughout.

        * a-tifiio.adb (Put_Scaled): Remove remaining pragma Debug. Not only
        we want to be able to compile run-time with -gnata for testing, but
        this may also be instantiated in user code that is compiled with -gnata.

2004-03-15  Olivier Hainque  <hainque@act-europe.fr>

        * s-stalib.ads (Exception_Code): New type, to represent Import/Export
        codes. Having a separate type for this is useful to enforce consistency
        throughout the various run-time units.
        (Exception_Data): Use Exception_Code for Import_Code.

        * s-vmextra.ads, s-vmexta.adb: Use Exception_Code instead of a mix of
        Natural and Integer in various places.
        (Register_VMS_Exception): Use Base_Code_In to compute the exception code
        with the severity bits masked off.
        (Register_VMS_Exception): Handle the additional exception data pointer
        argument.

        * raise.c (_GNAT_Exception structure): Remove the handled_by_others
        component, now reflected by an exported accessor.
        (is_handled_by): New routine to compute whether the propagated
        occurrence matches some handler choice specification. Extracted out of
        get_action_description_for, and expanded to take care of the VMS
        specifities.
        (get_action_description_for): Use is_handled_by instead of an explicit
        complex condition to decide if the current choice at hand catches the
        propagated occurrence.

        * raise.h (Exception_Code): New type for C.

        * rtsfind.ads (RE_Id, RE_Unit_Table): Add
        System.Standard_Library.Exception_Code, to allow references from the
        pragma import/export expander.

        * a-exexpr.adb (Is_Handled_By_Others, Language_For, Import_Code_For):
        New accessors to allow easy access to GNAT exception data
        characteristics.
        (GNAT_GCC_Exception record, Propagate_Exception): Get rid of the
        redundant Handled_By_Others component, helper for the personality
        routine which will now be able to call the appropriate exception data
        accessor instead.

        * cstand.adb (Create_Standard): Adjust the type of the Import_Code
        component of Standard_Exception_Type to be the closest possible to
        Exception_Code in System.Standard_Library, that we cannot get at this
        point. Expand a ??? comment to notify that this type node should
        probably be rewritten later on.

        * exp_prag.adb (Expand_Pragma_Import_Export_Exception): Adjust the
        registration call to include a pointer to the exception object in the
        arguments.

        * init.c (__gnat_error_handler): Use Exception_Code and Base_Code_In
        instead of int and explicit bitmasks.

2004-03-15  Vincent Celier  <celier@gnat.com>

        * vms_data.ads: Add new GNAT BIND qualifier /STATIC. Makes /NOSHARED
        equivalent to /STATIC and /NOSTATIC equivalent to /SHARED.

        * a-tasatt.adb (To_Access_Code): Remove this UC instantiation, no
        longer needed now that it is in the spec of
        System.Tasking.Task_Attributes.

        * adaint.h, adaint.c: (__gnat_create_output_file): New function

        * gnatcmd.adb: Fix bug introduced in previous rev: /= instead of =

        * g-os_lib.ads, g-os_lib.adb (Create_Output_Text_File): New function.

        * make.adb (Gnatmake): Do not check the executable suffix; it is being
        taken care of in Scan_Make_Arg.
        (Scan_Make_Arg): Add the executable suffix only if the argument
        following -o, in canonical case, does not end with the executable
        suffix.  When in verbose mode and executable file name does not end
        with executable suffix, output the executable name, in canonical case.

        * s-tataat.ads (Access_Dummy_Wrapper): Add pragma No_Strict_Aliasing
        to avoid warnings when instantiating Ada.Task_Attributes.
        Minor reformating.

        * mlib-prj.adb (Process_Imported_Libraries): Get the imported libraries
        in the correct order.

        * prj-makr.adb (Process_Directory): No longer use GNAT.Expect, but
        redirect standard output and error to a file for the invocation of the
        compiler, then read the file.

        * prj-nmsc.adb (Find_Sources): Use the Display_Value for each
        directory, instead of the Value.
        (Find_Source_Dirs): Remove useless code & comments.

2004-03-15  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch3.adb (Freeze_Record_Type): If a primitive operation of a
        tagged type is inherited, and the parent operation is not frozen yet,
        force generation of a freeze node for the inherited operation, so the
        corresponding dispatch entry is properly initialized.
        (Make_Predefined_Primitive_Specs): Check that return type is Boolean
        when looking for user-defined equality operation.

        * exp_ch4.adb (Expand_Composite_Equality): Check that return type is
        boolean when locating primitive equality of tagged component.

        * exp_ch5.adb (Expand_Assign_Array): If the left-hand side is a
        bit-aligned field and the right-hand side a string literal, introduce
        a temporary before expanding assignment into a loop.

        * exp_ch9.adb (Expand_N_Task_Type_Declaration): Copy expression for
        priority in full, to ensure that any expanded subepxressions of it are
        elaborated in the scope of the init_proc.

        * exp_prag.adb (Expand_Pragma_Import): Search for initialization call
        after object declaration, skipping over code that may have been
        generated for validity checks.

        * sem_ch12.adb (Validate_Private_Type_Instance): If type has unknown
        discriminants, ignore the known discriminants of its full view, if
        any, to check legality.

        * sem_ch3.adb (Complete_Private_Subtype): Do not create constrained
        component if type has unknown discriminants.
        (Analyze_Private_Extension_Declaration): Discriminant constraint is
        null if type has unknown discriminants.

        * sem_ch6.adb (Analyze_Generic_Subprogram_Body): Generate reference
        for end label when present.

        * s-fileio.adb (Open): When called with a C_Stream, use given name for
        temporary file, rather than an empty string.

2004-03-15  Ed Falis  <falis@gnat.com>

        * s-thread.adb: Removed, no longer used.

2004-03-15  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (target.h): Now include.
        (gnat_to_gnu_entity, case E_Access_Type): Use mode derived from ESIZE
        in new build_pointer_from_mode calls for non-fat/non-thin pointer.
        (validate_size): For POINTER_TYPE, get smallest size permitted on
        machine.

        * fe.h: Sort Einfo decls and add Set_Mechanism.

        * Makefile.in: (LIBGNAT_SRCS): Remove types.h.
        (ada/decl.o): Depends on target.h.

        * trans.c (tree_transform, N_Unchecked_Type_Conversion): Do not use
        FUNCTION_BOUNDARY; always use TYPE_ALIGN.

2004-03-15  Thomas Quinot  <quinot@act-europe.fr>

        * 5ztpopsp.adb, 56tpopsp.adb: Fix spelling of Task_ID.

        * exp_ch4.adb (Expand_N_Indexed_Component): Do not call
        Insert_Dereference_Action when rewriting an implicit dereference into
        an explicit one, this will be taken care of during expansion of the
        explicit dereference.
        (Expand_N_Slice): Same. Always do the rewriting, even for the case
        of non-packed slices, since the dereference action generated by
        expansion of the explicit dereference is needed in any case.
        (Expand_N_Selected_Component): When rewriting an implicit dereference,
        analyze and resolve the rewritten explicit dereference so it is seen
        by the expander.
        (Insert_Dereference_Action): This procedure is now called only for the
        expansion of an N_Explcit_Dereference_Node. Do insert a check even for
        dereferences that do not come from source (including explicit
        dereferences resulting from rewriting implicit ones), but do not
        recursively insert a check for the dereference nodes contained within
        the check.
        (Insert_Dereference_Action): Clarify and correct comment.

2004-03-08  Paolo Bonzini  <bonzini@gnu.org>

        PR ada/14131
        Move language detection to the top level.
        * config-lang.in: Build by default.

2004-03-05  Robert Dewar  <dewar@gnat.com>

        * 56taprop.adb, 5ataprop.adb: Remove unneeded unchecked conversions

        * a-tags.adb, a-tags.ads, s-finimp.adb, s-finroo.ads,
        i-cpoint.ads, i-cpoint.adb, i-cstrin.adb, i-cstrin.ads,
        5iosinte.ads, 5sosinte.ads, 5staspri.ads, 5itaprop.adb,
        5staprop.adb, 5wtaprop.adb, s-tataat.ads, s-tataat.adb: Move
        unchecked conversion to spec to avoid warnings.

        * s-tasini.adb, s-taskin.ads, 5atpopsp.adb: Correct spelling Task_Id
        to Task_ID

        * 7stpopsp.adb: Correct casing in To_Task_ID call

        * a-strsea.ads, a-strsea.adb: Minor reformatting

        * einfo.ads, einfo.adb: Define new flag No_Strict_Aliasing

        * errout.ads: Switch for VMS is now NO_STRICT_ALIASING.
        Adjust Max_Msg_Length to be clearly large enough.

        * fe.h: Define In_Same_Source_Unit

        * osint.adb: Add pragma Warnings Off to suppress warnings
        * g-dyntab.adb, g-table.adb, g-thread.adb: Add Warnings (Off) to kill
        aliasing warnings.

        * opt.ads: Put entries in alpha order. Add entry for No_Strict_Aliasing

        * par-prag.adb: Add dummy entry for No_Strict_Aliasing pragma

        * sem_ch13.adb: Generate validate unchecked conversion nodes for gcc.

        * sem_ch3.adb: Set No_Strict_Aliasing flag if config pragma set.

        * sem_prag.adb: Implement pragma No_Strict_Aliasing.

        * sinfo.ads: Remove obsolete comment on validate unchecked conversion
        node. We now do generate them for gcc back end.

        * table.adb, sinput.adb: Add pragma Warnings Off to suppress aliasing
        warning.

        * sinput-c.adb: Fix bad name in header.
        Add pragma Warnings Off to suppress aliasing warning.

        * sinput-l.adb: Add pragma Warnings Off to suppress aliasing warning.

        * snames.h, snames.ads, snames.adb: Add entry for pragma
        No_Strict_Aliasing.

2004-03-05  Vincent Celier  <celier@gnat.com>

        * prj-com.ads: Add hash table Files_Htable to check when a file name
        is already a source of another project.

        * prj-nmsc.adb (Record_Source): Before recording a new source, check
        if its file name is not already a source of another project. Report an
        error if it is.

        * gnatcmd.adb: When GNAT PRETTY is invoked with a project file and no
        source file name, call gnatpp with all the sources of the main project.

        * vms_conv.adb (Initialize): GNAT PRETTY may be called with any number
        of file names.

        * vms_data.ads: Correct documentation of new /OPTIMIZE keyword
        NO_STRICT_ALIASING. Add new qualifier for GNAT PRETTY:
        /RUNTIME_SYSTEM=, converted to --RTS=
        /NOTABS, converted to -notabs

2004-03-05  Pascal Obry  <obry@gnat.com>

        * make.adb: Minor reformatting.

2004-03-05  Ed Schonberg  <schonberg@gnat.com>

        Part of implemention of AI-262.
        * par-ch10.adb (P_Context_Clause): Recognize private with_clauses.

        * sem_ch10.ads, sem_ch10.adb: (Install_Private_With_Clauses): New
        procedure.

        * sem_ch3.adb (Analyze_Component_Declaration): Improve error message
        when component type is a partially constrained class-wide subtype.
        (Constrain_Discriminated_Type): If parent type has unknown
        discriminants, a constraint is illegal, even if full view has
        discriminants.
        (Build_Derived_Record_Type): Inherit discriminants when deriving a type
        with unknown discriminants whose full view is a discriminated record.

        * sem_ch7.adb (Preserve_Full_Attributes): Preserve Has_Discriminants
        flag, to handle properly derivations of tagged types with unknown
        discriminants.
        (Analyze_Package_Spec, Analyze_Package_Body): Install
        Private_With_Clauses before analyzing private part or body.

        * einfo.ads: Indicate that both Has_Unknown_Discriminants and
        Has_Discriminants can be true for a given type (documentation).

2004-03-05  Arnaud Charlet  <charlet@act-europe.fr>

        * s-restri.ads: Fix license (GPL->GMGPL).

        * s-tassta.adb: Minor reformatting.

        * s-tasren.adb: Replace manual handling of Self_Id.ATC_Nesting_Level
        by calls to Exit_One_ATC_Level, since additional clean up is performed
        by this function.

        * s-tpobop.adb: Replace manual handling of Self_Id.ATC_Nesting_Level
        by calls to Exit_One_ATC_Level, since additional clean up is performed
        by this function.

2004-03-05  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c: Reflect GCC changes to fix bootstrap problem.
        Add warning for suspicious aliasing unchecked conversion.

2004-03-05  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-03-02  Emmanuel Briot  <briot@act-europe.fr>

        * ali.adb (Read_Instantiation_Instance): Do not modify the
        current_file_num when reading information about instantiations, since
        this corrupts files in later references.

2004-03-02  Vincent Celier  <celier@gnat.com>

        * bcheck.adb (Check_Consistency): Get the full path of an ALI file
        before checking if it is read-only.

        * bld.adb (Recursive_Process): Concatenate <PROJECT>.src_dirs in front
        of SRC_DIRS and eliminate duplicates.

        * gprcmd.adb: Replace command "path" with command "path_sep" to return
        the path separator.
        (Usage): Document path_sep

        * Makefile.generic: For Ada and GNU C++ cases, link directly with the
        C++ compiler. No need for a script.
        Replace use of C*_INCLUDE_PATH env var for GCC compilers with CPATH.
        Do not call gprcmd to build the C*_INCLUDE_PATHs, do it with function
        subst.

        * prj-env.adb (For_All_Source_Dirs): Only add source dirs in project
        where there are Ada sources.
        (Set_Ada_Paths): Only add to the include path the source dirs of project
        with Ada sources.
        (Add_To_Path): Add the Display_Values of the directories, not their
        Values.

        * prj-nmsc.adb (Find_Sources): Set flag Sources_Present in the project
        data.

        * prj-nmsc.adb (Add_ALI_For): Make sure that the element Display_Value
        is not No_Name.
        (Find_Source_Dirs): Set Display_Value to a non canonicalized value, only
        Value is canonicalized.
        (Language_Independent_Check): Do not copy Value to Display_Value when
        canonicalizing Value.

        * prj-part.adb (Post_Parse_Context_Clause): Compare canonical cased
        path to find limited with cycles.
        (Parse_Single_Project): Use canonical cased path to find the end of a
        with cycle.

2004-03-02  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch10.adb (Optional_Subunit): Verify that unit contains a subunit
        and not a child unit.

        * sinfo.ads, sinfo.adb: Rearrange flags so that Private_Present can
        appear in a with_clause.

        * decl.c (gnat_to_gnu_type): If entity is a generic type, which can
        only happen in type_annotate mode, do not try to elaborate it.

        * exp_util.adb (Force_Evaluation): If expression is a selected
        component on the left of an assignment, use a renaming rather than a
        temporary to remove side effects.

        * freeze.adb (Freeze_Entity): Do not freeze a global entity within an
        inlined instance body, which is analyzed before the end of the
        enclosing scope.

2004-03-02  Robert Dewar  <dewar@gnat.com>

        * par-ch10.adb, par-ch3.adb, par-ch4.adb, scng.adb,
        sem_ch4.adb: Use new feature for substitution of keywords in VMS

        * errout.ads, errout.adb: Implement new circuit for substitution of
        keywords in VMS.

        * sem_case.adb (Analyze_Choices): Place message properly when case is
        a subtype reference rather than an explicit range.

        * sem_elim.adb, s-tpobop.ads, exp_ch2.adb: Minor reformatting

2004-03-02  Doug Rupp  <rupp@gnat.com>

        * init.c (__gnat_initialize)[VMS]: Resignal RDB-E-STREAM_EOF.

2004-03-02  Thomas Quinot  <quinot@act-europe.fr>

        * s-tporft.adb: Add missing locking around call to Initialize_ATCB.

2004-03-02  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * utils.c (finish_record_type): Do not set DECL_NONADDRESSABLE for a
        BLKmode bitfield.

2004-02-25  Robert Dewar  <dewar@gnat.com>

        * 51osinte.ads, 52osinte.ads, 53osinte.ads, 54osinte.ads,
        55osinte.ads, 56osinte.ads, 5aosinte.ads, 5bosinte.ads,
        5cosinte.ads, 5fosinte.ads, 5gosinte.ads, 5hosinte.ads,
        5iosinte.ads, 5losinte.ads, 5nosinte.ads, 5oosinte.ads,
        5posinte.ads, 5sosinte.ads, 5tosinte.ads, 5vosinte.ads,
        5wosinte.ads, 5zosinte.ads: Move instances of Unchecked_Conversion to
        the defining instance of the type to avoid aliasing problems.
        Fix copyright header.  Fix bad comments in package header.

        * exp_util.adb, prj-part.adb, prj-part.adb: Minor reformatting

2004-02-25  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch2.adb (Param_Entity): Handle properly formals that have been
        rewritten as references when aliased through an address clause.

        * sem_ch4.adb (Try_Indirect_Call): Normalize actuals before checking
        whether call can be interpreted as an indirect call to the result of a
        parameterless function call returning an access subprogram.

2004-02-25  Arnaud Charlet  <charlet@act-europe.fr>

        Code clean up:
        * exp_ch7.adb (Make_Clean): Remove generation of calls to
        Unlock[_Entries], since this is now done by Service_Entries directly.

        * exp_ch9.adb (Build_Protected_Subprogram_Body): ditto.

        * s-tpobop.ads, s-tpobop.adb (PO_Service_Entries): New nested procedure
        Requeue_Call for better code readability. Change spec and update calls:
        PO_Service_Entries now unlock the PO on exit.
        (Protected_Entry_Call, Timed_Protected_Entry_Call): Update calls to
        PO_Service_Entries.

        * s-tposen.ads, s-tposen.adb (Service_Entry): Now unlock the PO on exit.

        * s-taenca.adb, s-tasren.adb: Update calls to PO_Service_Entries.

2004-02-25  Sergey Rybin  <rybin@act-europe.fr>

        * exp_ch9.adb (Build_Simple_Entry_Call): Prevent expanding the
        protected subprogram call and analyzing the result of such expanding
        in case when the called protected subprogram is eliminated.

        * sem_elim.adb (Check_Eliminated): Skip blocks when comparing scope
        names.

2004-02-25  Jerome Guitton  <guitton@act-europe.fr>

        * Makefile.in: Clean ups.

2004-02-23  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch6.adb (Expand_N_Subprogram_Declaration): Do not create
        protected operations if original subprogram is flagged as eliminated.
        (Expand_N_Subprogram_Body): For a protected operation, create
        discriminals for next operation before checking whether the operation
        is eliminated.

        * exp_ch9.adb (Expand_N_Protected_Body,
        Expand_N_Protected_Type_Declaration): Do not generate specs and bodies
        for internal protected operations if the original subprogram is
        eliminated.

        * sem_elim.adb (Check_Eliminated): Handle properly protected operations
        declared in a single protected object.

2004-02-23  Vincent Celier  <celier@gnat.com>

        * prj-attr.adb: Make attribute Builder'Executable an associative array,
        case insensitive if file names are case insensitive, instead of a
        standard associative array.

        * prj-attr.adb (Initialize): For 'b' associative arrays, do not set
        them as case insensitive on platforms where the file names are case
        sensitive.

        * prj-part.adb (Parse_Single_Project): Make sure, when checking if
        project file has already been parsed that canonical path are compared.

2004-02-23  Robert Dewar  <dewar@gnat.com>

        * sinput-c.ads: Correct bad unit title in header

        * freeze.adb: Minor reformatting

2004-02-23  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (tree_transform, case N_Procedure_Call_Statement): For
        nonaddressable COMPONENT_REF that is removing padding that we are
        taking the address of, take the address of the padded record instead
        if item is variable size.

2004-02-20  Robert Dewar  <dewar@gnat.com>

        * bld.adb, exp_util.adb, gprcmd.adb: Minor reformatting

2004-02-20  Ed Schonberg  <schonberg@gnat.com>

        * freeze.adb (Freeze_Record_Type): Generalize mechanism that generates
        itype references for the constrained designated type of a component
        whose base type is already frozen.

2004-02-20  Arnaud Charlet  <charlet@act-europe.fr>

        * init.c (__gnat_error_handler [tru64]): Rewrite previous change to
        avoid GCC warnings.

2004-02-20  Sergey Rybin  <rybin@act-europe.fr>

        * sem_ch12.adb (Analyze_Formal_Package): Create a new defining
        identifier for a phantom package that rewrites the formal package
        declaration with a box. The Add semantic decorations for the defining
        identifier from the original node (that represents the formal package).

2004-02-19  Matt Kraai  <kraai@alumni.cmu.edu>

        * Make-lang.in (ada/stamp-sdefault): Use the top level
        move-if-change.

2004-02-19  Richard Henderson  <rth@redhat.com>

        * misc.c (record_code_position): Add third build arg for RTL_EXPR.

2004-02-18  Emmanuel Briot  <briot@act-europe.fr>

        * ali.ads, ali.adb (First_Sdep_Entry): No longer a constant, so that
        Scan_ALI can be used for multiple ALI files without reinitializing
        between calls.

2004-02-18  Robert Dewar  <dewar@gnat.com>

        * debug.adb: Minor reformatting.

2004-02-18  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * decl.c (gnat_to_gnu_entity, case object): Set DECL_POINTER_ALIAS_SET
        to zero if there is an address clause.

2004-02-18  Thomas Quinot  <quinot@act-europe.fr>

        * exp_util.adb (Side_Effect_Free): Any literal is side effects free.

2004-02-18  Gary Dismukes  <dismukes@gnat.com>

        * layout.adb (Layout_Component_List): Revise generation of call to
        discriminant-checking function to pass selections of all of the type's
        discriminants rather than just the variant-controlling discriminant.

2004-02-18  Olivier Hainque  <hainque@act-europe.fr>

        * 5gmastop.adb (Pop_Frame): Do not call exc_unwind, which is bound to
        fail in the current setup and triggers spurious system error messages.
        Pretend it occurred and failed instead.

2004-02-18  Vincent Celier  <celier@gnat.com>

        * bld.adb: Mark FLDFLAGS as saved
        (Process_Declarative_Items): Add Linker'Linker_Options to FLDFLAGS when
        it is not the root project.  Put each directory to be
        extended between double quotes to prevent it to be expanded on Windows.
        (Recursive_Process): Reset CFLAGS/CXXFLAGS to nothing before processing
        the project file. Set them back to their initial values if they have not
        been set in the project file.

        * gprcmd.adb: (Gprdebug, Debug): New global variables
        (Display_Command): New procedure
        (Usage): Document new command "linkopts"
        Call Display_Command when env var GPRDEBUG has the value "TRUE"
        Implement new command "linkopts"
        Remove quotes that may be around arguments for "extend"
        Always call Normalize_Pathname with arguments formatted for the platform

        * Makefile.generic: Link C/C++ mains with $(FLDFLAGS)
        Change @echo to @$(display) in target clean to be able to clean silently

        * Makefile.prolog: Save FLDFLAGS and give it an initial empty value

        * prj-part.adb (Project_Path_Name_Of): Do not put final result in
        canonical case.

        * prj-part.adb (Parse_Single_Project): Always call with From_Extended
        = Extending_All when current project is an extending all project.

        * vms_conv.adb (Output_File_Expected): New Boolean global variable,
        set to True only for LINK command, after Unix switch -o.
        (Process_Arguments): Set Output_File_Expected to True for LINK command
        after Unix switch -o. When Output_File_Expected is True, never add an
        extension to a file name.

        * 5vml-tgt.adb (Build_Dynamic_Library): Do not append "/OPTIONS" to the
        option file name, only to the --for-linker= switch.
        (Option_File_Name): If option file name do not end with ".opt", append
        "/OPTIONS".

2004-02-18  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-02-17  Matt Kraai  <kraai@alumni.cmu.edu>

        * Make-lang.in (stamp-sdefault): Do not depend on
        move-if-change.

2004-02-12  Zack Weinberg  <zack@codesourcery.com>

        * config-lang.in: Disable Ada by default until probe logic for
        a bootstrap Ada compiler can be moved to the top level configure
        script.

2004-02-12  Olivier Hainque  <hainque@act-europe.fr>

        * decl.c (components_to_record): Don't claim that the internal fields
        we make to hold the variant parts are semantically addressable, because
        they are not.

        * exp_pakd.adb (Create_Packed_Array_Type): Rename Esiz into PASize and
        adjust the comment describing the modular type form when we can use it.
        (Install_PAT): Account for the Esiz renaming.

        * init.c (__gnat_error_handler for alpha-tru64): Arrange to clear the
        sc_onstack context indication before raising the exception to which
        the signal is mapped. Allows better handling of later signals possibly
        triggered by the resumed user code if the exception is handled.

2004-02-12  Arnaud Charlet  <charlet@act-europe.fr>

        * 5zinit.adb: Removed, no longer used.

2004-02-12  Robert Dewar  <dewar@gnat.com>

        * ali.adb: Remove separating space between parameters on R line. Makes
        format consistent with format used by the binder for Set_Globals call.

        * atree.ads, atree.adb: Minor reformatting (new function header format)

        * bindgen.adb: Add Run-Time Globals documentation section containing
        detailed documentation of the globals passed from the binder file to
        the run time.

        * gnatls.adb: Minor reformatting

        * init.c (__gnat_set_globals): Add note pointing to documentation in
        bindgen.

        * lib-writ.ads, lib-writ.adb: Remove separating space between
        parameters on R line.
        Makes format consistent with format used by the binder for Set_Globals
        call.

        * osint.ads: Add 2004 to copyright notice
        Minor reformatting

        * snames.ads: Correct capitalization of FIFO_Within_Priorities
        Noticed during code reading, documentation issue only

        * usage.adb: Remove junk line for obsolete C switch
        Noticed during code reading

2004-02-12  Vincent Celier  <celier@gnat.com>

        * bld.adb (Process_Declarative_Items): For Source_Dirs call gprcmd
        extend for each directory, so that multiple /** directories are
        extended individually.
        (Recursive_Process): Set the default for LANGUAGES to ada

        * gprcmd.adb: Define new command "ignore", to do nothing.
        Implement new comment "path".

        * Makefile.generic: Suppress output when SILENT is set
        Make sure that when compiler for C/C++ is gcc, the correct -x switch is
        used, so that the correct compiler is invoked.
        When compiler is gcc/g++, put search path in env vars C_INCLUDE_PATH/
        CXX_INCLUDE_PATH, to avoid failure with too long command lines.

2004-02-12  Jerome Guitton  <guitton@act-europe.fr>

        * Makefile.in: Clean ups and remove obsolete targets.

2004-02-12  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch5.adb: Remove Possible_Unligned_Slice, in favor of the similar
        predicate declared in exp_util.

        * exp_util.adb: Add comments.

        * sem_ch10.adb (Analyze_Subunit): Remove ultimate parent unit from
        visibility before compiling context of the subunit.

        * sem_res.adb (Check_Parameterless_Call): If the context expects a
        value but the name is a procedure, do not attempt to analyze as a call,
        in order to obtain more telling diagnostics.

        * sem_util.adb (Wrong_Type): Further enhancement to diagnose missing
        'Access on parameterless function calls.
        (Normalize_Actuals): For a parameterless function call with missing
        actuals, defer diagnostic until resolution of enclosing call.

        * sem_util.adb (Wrong_Type): If the context type is an access to
        subprogram and the expression is a procedure name, suggest a missing
        'attribute.

2004-02-10  Arnaud Charlet  <charlet@act-europe.fr>,
            Nathanael Nerode  <neroden@gcc.gnu.org>

        PR ada/6637
        PR ada/5911
        Merge with libada-branch:
        * config-lang.in: Build libada only when ada is built.

2004-02-09  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch4.adb (Expand_N_Op_Eq): When looking for the primitive equality
        for a tagged type, verify that both formals have the same type.

        * exp_ch6.adb (Add_Call_By_Copy_Code): Initialize properly the
        temporary when the formal is an in-parameter and the actual a possibly
        unaligned slice.

        * exp_ch9.adb (Expand_Entry_Barrier): Resolve barrier expression even
        when expansion is disabled, to ensure proper name capture with
        overloaded literals.  Condition can be of any boolean type, resolve
        accordingly.

        * sem_ch8.adb (Analyze_Subprogram_Renaming): Emit warning if the
        renaming is for a formal subprogram with a default operator name, and
        there is a usable operator that is visible at the point of
        instantiation.

2004-02-09  Robert Dewar  <dewar@gnat.com>

        * ali.adb (Scan_Ali) Add Ignore_Errors argument. This is a major
        rewrite to ignore errors in ali files, intended to allow tools downward
        compatibility with new versions of ali files.

        * ali.ads: Add new parameter Ignore_Errors

        * bcheck.adb (Check_Consistent_Restrictions): Fix error of sometimes
        duplicating the error message giving the file with restrictions.

        * debug.adb: Add debug flag I for gnatbind

        * errout.adb (Set_Msg_Insertion_Node): Suppress extra quotes around
        operators for the case where the operator is a defining operator.

        * exp_ch3.adb: Minor reformatting (new function spec format).

        * exp_ch4.adb: Add comment for previous change, and make minor
        adjustment to loop to always check for improper loop termination.
        Minor reformatting throughout (new function spec format).

        * gnatbind.adb: Implement -di debug flag for gnatbind

        * gnatlink.adb: Call Scan_ALI with Ignore_Errors set to True

        * gnatls.adb: Call Scan_ALI with Ignore_Errors set to True

        * lib-load.adb: Fix bad assertion.
        Found by testing and code reading.
        Minor reformatting.

        * lib-load.ads: Minor reformatting.

        * lib-writ.adb: There is only one R line now.

        * lib-writ.ads: Add documentation on making downward compatible changes
        to ali files so old tools work with new ali files.
        There is only one R line now.
        Add documentation on format incompatibilities (with special GPS note)

        * namet.ads, namet.adb: (Is_Operator_Name): New procedure

        * par-load.adb: Minor reformatting

        * sem_ch8.adb: Fix to error message from last update
        Minor reformatting and restructuring of code from last update

        * par-prag.adb, snames.adb, snames.ads, snames.h,
        sem_prag.adb: Implement pragma Profile.

        * stylesw.adb: Implement -gnatyN switch to turn off all style check
        options.

        * usage.adb: Add line for -gnatyN switch

        * vms_data.ads: Add entry STYLE_CHECKS=NONE for -gnatyN

2004-02-09  Albert Lee  <lee@gnat.com>

        * errno.c: define _SGI_MP_SOURCE for task-safe errno on IRIX

2004-02-09  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch3.adb (Build_Slice_Assignment): Handle properly case of null
        slices.

        * exp_ch6.adb (Expand_Call): Do not inline a call when the subprogram
        is nested in an instance that is not frozen yet, to avoid
        order-of-elaboration problems in gigi.

        * sem_attr.adb (Analyze_Attribute, case 'Access): Within an inlined
        body the attribute is legal.

2004-02-09  Robert Dewar  <dewar@gnat.com>

        * s-rident.ads: Minor comment correction

        * targparm.adb: Remove dependence on uintp completely. There was
        always a bug in Make in that it called Targparm before initializing
        the Uint package. The old code appeared to get away with this, but
        the new code did not! This caused an assertion error in gnatmake.

        * targparm.ads: Fix bad comment, restriction pragmas with parameters
        are indeed fully supported.

2004-02-06  Alan Modra  <amodra@bigpond.net.au>

        * misc.c (default_pass_by_ref): Update INIT_CUMULATIVE_ARGS call.

2004-02-05  Kazu Hirata  <kazu@cs.umass.edu>

        * ada/utils.c (create_param_decl): Replace PROMOTE_PROTOTYPES
        with targetm.calls.promote_prototypes.

2004-02-04  Robert Dewar  <dewar@gnat.com>

        * 5gtasinf.adb, 5gtasinf.ads, 5gtaprop.adb, ali.adb,
        ali.ads, gprcmd.adb: Minor reformatting

        * bindgen.adb: Output restrictions string for new style restrictions
        handling

        * impunit.adb: Add s-rident.ads (System.Rident) and
        s-restri (System.Restrictions)

        * lib-writ.adb: Fix bug in writing restrictions string (last few
        entries wrong)

        * s-restri.ads, s-restri.adb: Change name Restrictions to
        Run_Time_Restrictions to avoid conflict with package name.
        Add circuit to read and acquire run time restrictions.

2004-02-04  Jose Ruiz  <ruiz@act-europe.fr>

        * restrict.ads, restrict.adb: Use the new restriction
        No_Task_Attributes_Package instead of the old No_Task_Attributes.

        * sem_prag.adb: No_Task_Attributes is a synonym of
        No_Task_Attributes_Package.

        * snames.ads, snames.adb: New entry for proper handling of
        No_Task_Attributes.

        * s-rident.ads: Adding restriction No_Task_Attributes_Package
        (AI-00249) that supersedes the GNAT specific restriction
        No_Task_Attributes.

2004-02-04  Ed Schonberg  <schonberg@gnat.com>

        * sem_prag.adb:
        (Analyze_Pragma, case Warnings): In an inlined body, as in an instance
         body, an identifier may be wrapped in an unchecked conversion.

2004-02-04  Vincent Celier  <celier@gnat.com>

        * lib-writ.ads: Comment update for the W lines

        * bld.adb: (Expression): An empty string list is static

        * fname-uf.adb: Minor comment update

        * fname-uf.ads: (Get_File_Name): Document new parameter May_Fail

        * gnatbind.adb: Initialize Cumulative_Restrictions with the
        restrictions on the target.

2004-02-03  Kazu Hirata  <kazu@cs.umass.edu>

        * ada/trans.c (gigi): Use gen_rtx_SYMBOL_REF instead of
        gen_rtx.

2004-02-02  Arnaud Charlet  <charlet@gnat.com>

        * Makefile.in: Remove setting of THREADSLIB on mips o32, unneeded.

2004-02-02  Vincent Celier  <celier@gnat.com>

        * gprcmd.adb (Check_Args): If condition is false, print the invoked
        comment before the usage.
        Gprcmd: Fail when command is not recognized.
        (Usage): Document command "prefix"

        * g-md5.adb (Digest): Process last block.
        (Update): Do not process last block. Store remaining characters and
        length in Context.

        * g-md5.ads (Update): Document that several call to update are
        equivalent to one call with the concatenated string.
        (Context): Add fields to allow new Update behaviour.

        * fname-uf.ads/adb (Get_File_Name): New Boolean parameter May_Fail,
        defaulted to False.
        When May_Fail is True and no existing file can be found, return No_File.

        * 6vcstrea.adb: Inlined functions are now wrappers to implementation
        functions.

        * lib-writ.adb (Write_With_Lines): When body file does not exist, use
        spec file name instead on the W line.

2004-02-02  Robert Dewar  <dewar@gnat.com>

        * ali.adb: Read and acquire info from new format restrictions lines

        * bcheck.adb: Add circuits for checking restrictions with parameters

        * bindgen.adb: Output dummy restrictions data
        To be changed later

        * ali.ads, checks.adb, exp_aggr.adb, exp_attr.adb, exp_ch11.adb,
        exp_ch3.adb, exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_util.adb,
        freeze.adb, gnat1drv.adb, sem_attr.adb, sem_ch10.adb, sem_ch11.adb,
        sem_ch12.adb, targparm.adb, targparm.ads, tbuild.adb, sem_ch2.adb,
        sem_elab.adb, sem_res.adb: Minor changes for new restrictions handling.

        * exp_ch9.adb (Build_Master_Entity): Cleanup the code (also suppresses
        the warning message on access to possibly uninitialized variable S)
        Minor changes for new restrictions handling.

        * gnatbind.adb: Minor reformatting
        Minor changes for new restrictions handling
        Move circuit for -r processing here from bcheck (cleaner)

        * gnatcmd.adb, gnatlink.adb: Minor reformatting

        * lib-writ.adb: Output new format restrictions lines

        * lib-writ.ads: Document new R format lines for new restrictions
        handling.

        * s-restri.ads/adb: New files

        * Makefile.rtl: Add entry for s-restri.ads/adb

        * par-ch3.adb: Fix bad error messages starting with upper case letter
        Minor reformatting

        * restrict.adb: Major rewrite throughout for new restrictions handling
        Major point is to handle restrictions with parameters

        * restrict.ads: Major changes in interface to handle restrictions with
        parameters. Also generally simplifies setting of restrictions.

        * snames.ads/adb: New entry for proper handling of No_Requeue

        * sem_ch3.adb (Count_Tasks): New circuitry for implementing Max_Tasks
        restriction counting.
        Other minor changes for new restrictions handling

        * sem_prag.adb: No_Requeue is a synonym for No_Requeue_Statements.
        Restriction_Warnings now allows full parameter notation
        Major rewrite of Restrictions for new restrictions handling

2004-02-02  Javier Miranda  <miranda@gnat.com>

        * par-ch3.adb (P_Identifier_Declarations): Give support to the Ada 0Y
        syntax rule for object renaming declarations.
        (P_Array_Type_Definition): Give support for the Ada 0Y syntax rule for
        component definitions.

        * sem_ch3.adb (Analyze_Component_Declaration): Give support to access
        components.
        (Array_Type_Declaration): Give support to access components. In addition
        it was also modified to reflect the name of the object in anonymous
        array types. The old code did not take into account that it is possible
        to have an unconstrained anonymous array with an initial value.
        (Check_Or_Process_Discriminants): Allow access discriminant in
        non-limited types.
        (Process_Discriminants): Allow access discriminant in non-limited types
        Initialize the new Access_Definition field in N_Object_Renaming_Decl
        node.  Change Ada0Y to Ada 0Y in comments

        * sem_ch4.adb (Find_Equality_Types): Allow anonymous access types in
        equality operators.
        Change Ada0Y to Ada 0Y in comments

        * sem_ch8.adb (Analyze_Object_Renaming): Give support to access
        renamings Change Ada0Y to Ada 0Y in comments

        * sem_type.adb (Find_Unique_Type): Give support to the equality
        operators for universal access types
        Change Ada0Y to Ada 0Y in comments

        * sinfo.adb (Access_Definition, Set_Access_Definition): New subprograms

        * sinfo.ads (N_Component_Definition): Addition of Access_Definition
        field.
        (N_Object_Renaming_Declaration): Addition of Access_Definition field
        Change Ada0Y to Ada 0Y in comments

        * sprint.adb (Sprint_Node_Actual): Give support to the new syntax for
        component definition and object renaming nodes
        Change Ada0Y to Ada 0Y in comments

2004-02-02  Jose Ruiz  <ruiz@act-europe.fr>

        * restrict.adb: Use the new restriction identifier
        No_Requeue_Statements instead of the old No_Requeue for defining the
        restricted profile.

        * sem_ch9.adb (Analyze_Requeue): Check the new restriction
        No_Requeue_Statements.

        * s-rident.ads: Adding restriction No_Requeue_Statements (AI-00249)
        that supersedes the GNAT specific restriction No_Requeue. The later is
        kept for backward compatibility.

2004-02-02  Ed Schonberg  <schonberg@gnat.com>

        * lib.ads, i-cobol.ads, * s-stoele.ads, s-thread.ads, style.ads,
        5staprop.adb, atree.adb, atree.ads, g-crc32.ads: Remove redundant
        pragma and fix incorrect ones.

        * sem_prag.adb For pragma Inline and pragma Pure_Function, emit a
        warning if the pragma is redundant.

2004-02-02  Thomas Quinot  <quinot@act-europe.fr>

        * 5staprop.adb: Add missing 'constant' keywords.

        * Makefile.in: use consistent value for SYMLIB on
        platforms where libaddr2line is supported.

2004-02-02  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * utils.c (end_subprog_body): Do not call rest_of_compilation if just
        annotating types.

2004-02-02  Olivier Hainque  <hainque@act-europe.fr>

        * init.c (__gnat_install_handler): Setup an alternate stack for signal
        handlers in the environment thread. This allows proper propagation of
        an exception on stack overflows in this thread even when the builtin
        ABI stack-checking scheme is used without support for a stack reserve
        region.

        * utils.c (create_field_decl): Augment the head comment about bitfield
        creation, and don't account for DECL_BIT_FIELD in DECL_NONADDRESSABLE_P
        here, because the former is not accurate enough at this point.
        Let finish_record_type decide instead.
        Don't make a bitfield if the field is to be addressable.
        Always set a size for the field if the record is packed, to ensure the
        checks for bitfield creation are triggered.
        (finish_record_type): During last pass over the fields, clear
        DECL_BIT_FIELD when possible in the !STRICT_ALIGNMENT case, as this is
        not covered by the calls to layout_decl.  Adjust DECL_NONADDRESSABLE_P
        from DECL_BIT_FIELD.

2004-01-30  Kelley Cook  <kcook@gcc.gnu.org>

        * Make-lang.in (doc/gnat_ug_unx.dvi): Use $(abs_docdir).
        (doc/gnat_ug_vms.dvi, doc/gnat_ug_unx.dvi): Likewise.
        (doc/gnat_ug_unx.dvi, doc/gnat-style.dvi): Likewise.

2004-01-26  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * Makefile.in (mips-sgi-irix5): Remove -lathread from THREADSLIB.

        * 5fsystem.ads (Functions_Return_By_DSP): Set to False.
        (ZCX_By_Default): Likewise.
        (Front_End_ZCX_Support): Likewise.

        * 5gtaprop.adb (Stack_Guard): Mark T, On unreferenced.
        (Initialize_Lock): Mark Level unreferenced.
        (Sleep): Mark Reason unreferenced.
        (Timed_Sleep): Likewise.
        (Wakeup): Likewise.
        (Exit_Task): Use Result.
        (Check_No_Locks): Mark Self_ID unreferenced.

        * 5gtasinf.adb (New_Sproc): Make Attr constant.
        (Bound_Thread_Attributes): Make Sproc constant.
        (New_Bound_Thread_Attributes): Likewise.

2004-01-26  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch3.adb (Build_Slice_Assignment): New TSS procedure for
        one-dimensional array an slice assignments, when component type is
        controlled.

        * exp_ch5.adb (Expand_Assign_Array): If array is one-dimensional,
        component type is controlled, and control_actions are in effect, use
        TSS procedure rather than generating inline code.

        * exp_tss.ads (TSS_Slice_Assign): New TSS procedure for one-dimensional
        arrays with controlled components.

2004-01-26  Vincent Celier  <celier@gnat.com>

        * gnatcmd.adb (GNATCmd): Add specification of argument file on the
        command line for the non VMS case.

        * gnatlink.adb (Process_Binder_File): When building object file, if
        GNU linker is used, put all object paths between quotes, to prevent ld
        error when there are unusual characters (such as '!') in the paths.

        * Makefile.generic: When there are sources in Ada and the main is in
        C/C++, invoke gnatmake with -B, instead of -z.

        * vms_conv.adb (Preprocess_Command_Data): New procedure, extracted
        from VMS_Conversion.
        (Process_Argument): New procedure, extracted from VMS_Conversion. Add
        specification of argument file on the command line.

2004-01-26  Bernard Banner  <banner@gnat.com>

        * Makefile.in: Enable GMEM_LIB and SYMLIB for x86_64

2004-01-26  Ed Schonberg  <schonberg@gnat.com>

        * snames.adb: Update copyright notice.
        Add info on slice assignment for controlled arrays.

2004-01-23  Robert Dewar  <dewar@gnat.com>

        * exp_aggr.adb: Minor reformatting

        * exp_ch9.adb: Minor code clean up
        Minor reformatting
        Fix bad character in comment

        PR ada/13471
        * targparm.adb (Get_Target_Parameters): Give clean abort error on
        unexpected end of file, along with more detailed message.

2004-01-23  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * exp_pakd.adb (Install_PAT): Clear Freeze_Node for PAT and Etype of
        PAT.

        * decl.c (copy_alias_set): New function.
        (gnat_to_gnu_entity, make_aligning_type, make_packable_type): Use it.

2004-01-23  Doug Rupp  <rupp@gnat.com>

        * Makefile.in (install-gnatlib): Change occurrences of lib$$file to
        lib$${file} in case subsequent character is not a separator.

2004-01-23  Vincent Celier  <celier@gnat.com>

        * 5vml-tgt.adb (Build_Dynamic_Library): Invoke gcc with -shared-libgcc
        when the GCC version is at least 3.

        * make.adb: (Scan_Make_Arg): Pass -B to Scan_Make_Switches
        Remove all "Opt.", to prepare for opt split

        * prj-part.adb (Parse_Single_Project): New Boolean out parameter
        Extends_All. Set to True when the project parsed is an extending all
        project. Fails for importing an extending all project only when the
        imported project is an extending all project.
        (Post_Parse_Context_Clause): Set Is_Extending_All to the with clause,
        depending on the value of Extends_All returned.

        * prj-proc.adb (Process): Check that no project shares its object
        directory with a project that extends it, directly or indirectly,
        including a virtual project.
        Check that no project extended by another project shares its object
        directory with another also extended project.

        * prj-tree.adb (Is_Extending_All, Set_Is_Extending_All): Allow for
        Kind = N_With_Clause

        * prj-tree.ads: Minor reformatting
        Indicate that Flag2 also applies to N_With_Clause (Is_Extending_All).

2004-01-23  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch13.adb (Analyze_Attribute_Definition_Clause): If the attribute
        applies to a type with an incomplete view, use full view in Name of
        clause, for consistency with uses of Get_Attribute_Definition_Clause.

2004-01-23  Arnaud Charlet  <charlet@act-europe.fr>

        * 5itaprop.adb (Set_Priority): Reset the priority to 0 when using
        SCHED_RR, since other values are not supported by this policy.
        (Initialize): Move initialization of mutex attribute to package
        elaboration, to prevent early access to this variable.

        * Makefile.in: Remove mention of Makefile.adalib, unused.

        * Makefile.adalib, 1aexcept.adb, 1aexcept.ads, 1ic.ads, 1ssecsta.adb,
        1ssecsta.ads: Removed, unused.

2004-01-21  Javier Miranda  <miranda@gnat.com>

        * exp_aggr.adb (Build_Record_Aggr_Code): Do not build the master
        entity if already built in the current scope.

        * exp_ch9.adb (Build_Master_Entity): Do not set the has_master_entity
        reminder in internal scopes. Required for nested limited aggregates.

2004-01-21  Doug Rupp  <rupp@gnat.com>

        * Makefile.in (hyphen): New variable, default value '-'. Set to '_' on
        VMS. Replace all occurences of libgnat- and libgnarl- with
        libgnat$(hyphen) and libgnarl$(hyphen).
        Fixed shared library build problem on VMS.

2004-01-21  Robert Dewar  <dewar@gnat.com>

        * mlib-prj.adb: Minor reformatting

2004-01-21  Thomas Quinot  <quinot@act-europe.fr>

        * prj-tree.adb, 7staprop.adb, vms_conv.adb, xr_tabls.adb: Add missing
        'constant' keywords for declaration of pointers that are not modified.

        * exp_pakd.adb: Fix English in comment.

2004-01-21  Ed Schonberg  <schonberg@gnat.com>

        PR ada/10889
        * sem_ch3.adb (Analyze_Subtype_Declaration): For an array subtype,
        copy all attributes of the parent, including the foreign language
        convention.

2004-01-21  Sergey Rybin  <rybin@act-europe.fr>

        PR ada/10565
        * sem_ch9.adb (Analyze_Delay_Alternative): Add expression type check
        for 'delay until' statement.

2004-01-20  Kelley Cook  <kcook@gcc.gnu.org>

        * Make-lang.in: Replace $(docdir) with doc.
        (doc/gnat_ug_unx.info, doc/gnat_ug_vwx.info, doc/gnat_ug_vms.info
        doc/gnat_ug_wnt.info, doc/gnat_rm.info, doc/gnat-style.info): Update
        to use consistent MAKEINFO rule.
        (ada.man, ada.srcman): Dummy entry.
        (ADA_INFOFILES): Define.
        (ada.info, ada.srcinfo): New rules.

2004-01-19  Arnaud Charlet  <charlet@act-europe.fr>

        * utils.c: Update copyright notice, missed in previous change.

2004-01-19  Vincent Celier  <celier@gnat.com>

        * mlib-prj.adb (Build_Library.Add_ALI_For): Only add the ALI to the
        args if Bind is True. Set First_ALI, if not already done.
        (Build_Library): For Stand Alone Libraries, extract from one ALI file
        an eventual --RTS switch, for gnatbind, and all backend switches +
        --RTS, for linking.

2004-01-19  Robert Dewar  <dewar@gnat.com>

        * sem_attr.adb, memtrack.adb: Minor reformatting

2004-01-19  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch6.adb (Expand_Call): Remove code to fold calls to functions
        that rename enumeration literals. This is properly done in sem_eval.

        * sem_eval.ads, sem_eval.adb (Eval_Call): New procedure to fold calls
        to functions that rename enumeration literals.

        * sem_res.adb (Resolve_Call): Use Eval_Call to fold static calls to
        functions that rename enumeration literals.

2004-01-16  Kazu Hirata  <kazu@cs.umass.edu>

        * Make-lang.in (utils.o): Depend on target.h.
        * utils.c: Include target.h.
        (process_attributes): Use targetm.have_named_sections instead
        of ASM_OUTPUT_SECTION_NAME.

2004-01-16  Andreas Jaeger  <aj@suse.de>

        * Makefile.in: Add $(DESTDIR).

2004-01-15  Olivier Hainque  <hainque@act-europe.fr>

        * decl.c (gnat_to_gnu_entity, E_Variable): Retrieve the object size
        also when not defining if a Size clause applies. That information is
        not to be ignored.

2004-01-15  Arnaud Charlet  <charlet@act-europe.fr>

        * Makefile.in (install-gnatlib, gnatlib-shared-default): Set up
        symbolic links for the shared gnat run time when needed.

2004-01-15  Vasiliy Fofanov  <fofanov@act-europe.fr>

        * memtrack.adb (Gmem_Initialize): check that gmem.out could be opened
        for writing, and terminate with an error message if not.

2004-01-15  Ed Schonberg  <schonberg@gnat.com>

        * sem_attr.adb (Resolve_Attribute, case 'Access): Remove spurious
        warning on an access to subprogram in an instance, when the target
        type is declared in the same generic unit.
        (Eval_Attribute): If 'access is known to fail accessibility check,
        rewrite as a raise statement.

2004-01-15  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-01-15  Kelley Cook  <kcook@gcc.gnu.org>

        * Make-lang.in (ada.srcextra): Dummy entry.

2004-01-14  Kelley Cook  <kcook@gcc.gnu.org>

        * Make-lang.in: Only regenerate texi files if --enable-maintainer-mode.

2004-01-13  Ed Schonberg  <schonberg@gnat.com>

        * exp_ch3.adb (Build_Assignment): Fix bug in handling of controlled
        components that are initialized with aggregates.

2004-01-13  Vincent Celier  <celier@gnat.com>

        * gnatlink.adb (Process_Binder_File): To find directory of shared
        libgcc, if "gcc-lib" is not a subdirectory, look for the last
        subdirectory "lib" in the path of the shared libgnat or libgnarl.

        * make.adb (Gnatmake): If GCC version is at least 3, link with
        -shared-libgcc, when there is at least one shared library project.

        * opt.ads (GCC_Version): New integer constant.

        * adaint.c (get_gcc_version): New function.

2004-01-13  Robert Dewar  <dewar@gnat.com>

        * sem_dist.adb, sem_res.adb, sem_util.adb,
        sprint.adb, 3zsocthi.adb, einfo.adb, cstand.adb,
        exp_ch4.adb, exp_ch9.adb, exp_dist.adb: Minor reformatting

2004-01-13  Thomas Quinot  <quinot@act-europe.fr>

        * s-interr.adb, s-stache.adb, s-taenca.adb, g-regpat.adb,
        g-spitbo.adb, 5itaprop.adb: Add missing 'constant' keywords in object
        declarations.

2004-01-12  Arnaud Charlet  <charlet@act-europe.fr>

        * misc.c: Remove trailing spaces.
        Update copyright notice missed in previous change.

        PR ada/13572
        * bld.adb (Recursive_Process): Reference prefix/share/gnat instead of
        prefix/share/make

        * Makefile.generic: Update copyright.
        Add license notice.

        * Makefile.in (ADA_SHARE_MAKE_DIR): Set to prefix/share/gnat instead
        of prefix/share/make.

        * Makefile.prolog: Update copyright.
        Add license notice.

2004-01-12  Laurent Pautet  <pautet@act-europe.fr>

        * 3vsocthi.adb, 3vsocthi.ads, 3wsocthi.adb,
        3wsocthi.ads, 3zsocthi.adb, 3zsocthi.ads, g-socthi.adb,
        g-socthi.ads (Socket_Error_Message): Return C.Strings.chars_ptr
        instead of String.

        * g-socket.adb (Raise_Socket_Error): Use new Socket_Error_Message
        signature.

2004-01-12  Javier Miranda  <miranda@gnat.com>

        * cstand.adb, exp_aggr.adb, exp_ch3.adb, exp_ch9.adb, exp_dist.adb,
        exp_imgv.adb, exp_pakd.adb, exp_util.adb, par-ch3.adb, sem.adb,
        sem_ch12.adb, sem_ch3.adb, sem_dist.adb, sem_prag.adb, sem_res.adb,
        sem_util.adb, sinfo.adb, sinfo.ads, sprint.adb: Addition of
        Component_Definition node.

2004-01-12  Ed Falis  <falis@gnat.com>

        * impunit.adb: Add GNAT.Secondary_Stack_Info as user-visible unit

2004-01-12  Thomas Quinot  <quinot@act-europe.fr>

        * link.c: Change default libgnat kind to STATIC for FreeBSD.

2004-01-12  Bernard Banner  <banner@gnat.com>

        * Makefile.in: map 86numaux to a-numaux for x86_64

2004-01-12  Ed Schonberg  <schonberg@gnat.com>

        * lib-xref.adb (Get_Type_Reference): If the type is the subtype entity
        generated to rename a generic actual, go to the actual itself, the
        subtype is not a user-visible entity.

        * sem_ch7.adb (Uninstall_Declarations): If an entity in the visible
        part is a private subtype, reset the visibility of its full view, if
        any, to be consistent.

        PR ada/13417
        * sem_ch12.adb (Analyze_Formal_Package): Diagnose properly an attempt
        to use a generic package G as a formal package for another generic
        declared within G.

2004-01-12  Robert Dewar  <dewar@gnat.com>

        * trans.c (Eliminate_Error_Msg): New procedure called to generate msg

        * usage.adb: Remove mention of obsolete -gnatwb switch
        Noticed during code reading

2004-01-12  Jerome Guitton  <guitton@act-europe.fr>

        * 1ssecsta.adb: Minor changes for -gnatwa warnings

2004-01-12  GNAT Script  <nobody@gnat.com>

        * Make-lang.in: Makefile automatically updated

2004-01-09  Mark Mitchell  <mark@codesourcery.com>

        * misc.c (gnat_expand_expr): Add alt_rtl parameter.

2004-01-07  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * link.c [sgi] (shared_libgnat_default): Change to STATIC.

2004-01-05  Kelley Cook  <kcook@gcc.gnu.org>

        * Make-lang.in: Revert stamp-xgnatug change from 2003-12-18.
        Update comment and copyright date.
        * stamp-xgnatug: Delete.

2004-01-05  Robert Dewar  <dewar@gnat.com>

        * 1ssecsta.ads: Default_Secondary_Stack is not a constant since it may
        be modified by the binder generated main program if the -D switch is
        used.

        * 4onumaux.ads, 4znumaux.ads: Add Pure_Function pragmas for all
        imported functions (since now we expect this to be done for imported
        functions)

        * 5vtaprop.adb: Add several ??? for sections requiring more comments
        Minor reformatting throughout

        * 5zinit.adb: Minor reformatting
        Add 2004 to copyright date
        Minor changes to avoid -gnatwa warnings
        Correct some instances of using OR instead of OR ELSE (noted while
        doing reformatting)

        * sprint.adb: Minor updates to avoid -gnatwa warnings

        * s-secsta.ads, s-secsta.adb:
        (SS_Get_Max): New function to obtain high water mark for ss stack
        Default_Secondary_Stack is not a constant since it may be modified by
        the binder generated main program if the -D switch is used.

        * switch-b.adb: New -Dnnn switch for binder

        * switch-c.adb:
        Make -gnatg imply all warnings currently in -gnatwa

        * vms_conv.adb: Minor reformatting
        Add 2004 to copyright notice
        Add 2004 to printed copyright notice

        * 3vexpect.adb, 4zsytaco.adb, 3wsocthi.adb, 3zsocthi.adb,
        3zsocthi.adb, 56taprop.adb, 56tpopsp.adb, 5amastop.adb,
        5aml-tgt.adb, 5ataprop.adb, 5ataprop.adb, 5atpopsp.adb,
        5ftaprop.adb, 5ginterr.adb, 5gmastop.adb, 5gml-tgt.adb,
        5gtaprop.adb, 5hml-tgt.adb, 5hml-tgt.adb, 5hml-tgt.adb,
        5htaprop.adb, 5htraceb.adb, 5itaprop.adb, 5lml-tgt.adb,
        5sml-tgt.adb, 5staprop.adb, 5staprop.adb, 5stpopsp.adb,
        5vasthan.adb, 5vinmaop.adb, 5vinterr.adb, 5vtaprop.adb,
        5vml-tgt.adb, 5vtaprop.adb, 5wosprim.adb, 5wtaprop.adb,
        5zinterr.adb, 5zintman.adb, 5zml-tgt.adb, 5ztaprop.adb,
        6vcpp.adb, 6vcstrea.adb, 7staprop.adb, 7stpopsp.adb,
        vxaddr2line.adb, vxaddr2line.adb, xref_lib.adb, xr_tabls.adb,
        xr_tabls.ads, s-tasdeb.adb, s-tasdeb.adb, sem_res.ads,
        sem_util.adb, sem_util.adb, sem_util.ads, s-interr.adb,
        checks.adb, clean.adb, cstand.adb, einfo.ads,
        einfo.adb, exp_aggr.adb, exp_ch11.adb, exp_ch3.adb,
        exp_ch4.adb, exp_ch5.adb, exp_ch7.adb, exp_ch9.adb,
        prj-nmsc.adb, prj-pp.adb, prj-util.adb, sem_attr.adb,
        sem_ch10.adb, sem_ch12.adb, sem_ch4.adb, g-dirope.adb,
        g-dirope.ads, gnatlbr.adb, i-cstrea.adb, inline.adb,
        lib-xref.adb, sem_ch5.adb, sem_ch7.adb, sem_ch8.adb:
        Minor reformatting and code clean ups.
        Minor changes to prevent -gnatwa warnings

        * ali.adb: Minor reformatting and cleanup of code
        Acquire new SS indication of secondary stack use from ali files

        * a-numaux.ads: Add Pure_Function pragmas for all imported functions
        (since now we expect this to be done for imported functions)

        * bindgen.adb: Generate call to modify default secondary stack size if
        -Dnnn switch given

        * bindusg.adb: Add line for new -D switch

        * exp_aggr.adb (Type_May_Have_Bit_Aligned_Components): More appropriate
        replacement name for Type_May_Have_Non_Bit_Aligned_Components!
        Add circuitry for both records and arrays to avoid gigi
        processing if the type involved has non-bit-aligned components

        * exp_ch5.adb (Expand_Assign_Array): Avoid assumption that
        N_String_Literal node always references an E_String_Literal_Subtype
        entity. This may not be true in the future.
        (Possible_Bit_Aligned_Component): Move processing of
        Component_May_Be_Bit_Aligned from exp_ch5 to exp_util

        * exp_ch6.adb (Expand_Thread_Body): Pick up
        Default_Secondary_Stack_Size as variable so that we get value modified
        by possible -Dnnn binder parameter.

        * exp_util.adb (Component_May_Be_Bit_Aligned): New function.
        (Type_May_Have_Bit_Aligned_Components): New function.

        * exp_util.ads (Component_May_Be_Bit_Aligned): New function.
        (Type_May_Have_Bit_Aligned_Components): New function.

        * fe.h: (Set_Identifier_Casing): Fix prototype.
        Add declaration for Sem_Elim.Eliminate_Error_Msg.
        Minor reformatting.

        * freeze.adb (Freeze_Entity): Add RM reference to error message about
        importing constant atomic/volatile objects.
        (Freeze_Subprogram): Reset Is_Pure indication for imported subprogram
        unless explicit Pure_Function pragma given, to avoid insidious bug of
        call to non-pure imported function getting eliminated.

        * gnat1drv.adb, gnatbind.adb, gnatchop.adb, gnatfind.adb,
        gnatls.adb, gnatlink.adb, gnatmem.adb, gnatname.adb, gnatsym.adb,
        gnatxref.adb, gprcmd.adb, gprep.adb, make.adb: Minor reformatting
        Add 2004 to printed copyright notice

        * lib-writ.ads, lib-writ.adb: Put new SS flag in ali file if secondary
        stack used.

        * Makefile.rtl: Add entry for g-sestin.o
        g-sestin.ads: New file.

        * mdll.adb: Minor changes to avoid -gnatwa warnings

        * mlib-tgt.adb: Minor reformatting

        * opt.ads: New parameter Default_Secondary_Stack_Size (GNATBIND)
        New switch Sec_Stack_Used (GNAT, GNATBIND)
        Make Default_Secondary_Stack_Size a variable instead of a constant,
        so that it can be modified by the new -Dnnn bind switch.

        * rtsfind.adb (Load_Fail): Give full error message in configurable
        run-time mode if all_errors mode is set. This was not done in the case
        of a file not found, which was an oversight.
        Note if secondary stack unit is used by compiler.

        * sem_elab.adb (Check_A_Call): Rewrite to avoid trying to put
        ineffective elaborate all pragmas on non-visible packages (this
        happened when a renamed subprogram was called). Now the elaborate all
        always goes on the package containing the renaming rather than the one
        containing the renamed subprogram.

        * sem_elim.ads, sem_elim.adb (Eliminate_Error_Msg): New procedure
        (Process_Eliminate_Pragma): Add parameter to capture pragma location.

        * sem_eval.adb (Eval_String_Literal): Do not assume that string literal
        has an Etype that references an E_String_Literal.
        (Eval_String_Literal): Avoid assumption that N_String_Literal node
        always references an E_String_Literal_Subtype entity. This may not
        be true in the future.

        * sem_prag.adb (Process_Eliminate_Pragma): Add parameter to capture
        pragma location.

        * sem_res.adb (Resolve): Specialize msg for function name used in proc
        call.

2004-01-05  Ed Falis  <falis@gnat.com>

        * g-debuti.adb: Replaced direct boolean operator with short-circuit
        form.

2004-01-05  Vincent Celier  <celier@gnat.com>

        * bld.adb: Minor comment updates
        (Process_Declarative_Items): Correct incorrect name (Index_Name instead
        of Item_Name).

        * make.adb (Gnatmake): Special process for files to compile/check when
        -B is specified. Fail when there are only foreign mains in attribute
        Main of the project file and -B is not specified. Do not skip bind/link
        steps when -B is specified.

        * makeusg.adb: Document new switch -B

        * opt.ads (Build_Bind_And_Link_Full_Project): New Boolean flag

        * switch-m.adb: (Scan_Make_Switches): Process -B switch

        * vms_data.ads: Add new GNAT PRETTY qualifier
        /FORM_FEED_AFTER_PRAGMA_PAGE for switch -ff

2004-01-05  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * trans.c (tree_transform, case N_Free_Statement): Handle thin pointer
        case.

        * misc.c (gnat_printable_name): If VERBOSITY is 2, call
        Set_Identifier_Casing.

        * decl.c (gnat_to_gnu_entity, E_Function): Give error if return type
        has size that overflows.

2004-01-05  Gary Dismukes  <dismukes@gnat.com>

        * exp_ch4.adb (Expand_Array_Comparison): Add Boolean constant to avoid
        -gnatwa warning on static condition.

2004-01-05  Doug Rupp  <rupp@gnat.com>

        * link.c: (shared_libgnat_default) [VMS]: Change to STATIC.

2004-01-05  Arnaud Charlet  <charlet@act-europe.fr>

        * Makefile.in: Install ali files using INSTALL_DATA_DATE to preserve
        all attributes, including read-only attribute.

2004-01-05  Pascal Obry  <obry@gnat.com>

        * bindgen.adb (Gen_Object_Files_Options): Generate the new shared
        library naming scheme.

        * mlib-prj.adb (Build_Library): Generate different names for the static
        or dynamic version of the GNAT runtime. This is needed to support the
        new shared library naming scheme.
        (Process_Binder_File): Add detection of shared library in binder file
        based on the new naming scheme.

        * gnatlink.adb (Process_Binder_File): Properly detect the new naming
        scheme for the shared runtime libraries.

        * Makefile.in:
        (LIBRARY_VERSION) [VMS]: Convert all . to _ to conform to new naming
        scheme.
        (install-gnatlib): Do not create symlinks for shared libraries.
        (gnatlib-shared-default): Idem.
        (gnatlib-shared-dual-win32): New target. Not used for now as the
        auto-import feature does not support arrays/records.
        (gnatlib-shared-win32): Do not create copy for the shared libraries.
        (gnatlib-shared-vms): Fix shared runtime libraries names.

        * osint.ads, osint.adb (Shared_Lib): New routine, returns the target
        dependent runtime shared library name.

2004-01-05  Vasiliy Fofanov  <fofanov@act-europe.fr>

        * osint.adb (Read_Library_Info): Remove bogus check if ALI is older
        than the object.

2004-01-05  Ed Schonberg  <schonberg@gnat.com>

        * sem_ch4.adb (Analyze_Allocator): Check restriction on dynamic
        protected objects when allocator has a subtype indication, not a
        qualified expression. Note that qualified expressions may have to be
        checked when limited aggregates are implemented.

        * sem_prag.adb (Analyze_Pragma, case Import): If enclosing package is
        pure, emit warning.
        (Analyze_Pragma, case Pure_Function): If enclosing package is pure and
        subprogram is imported, remove warning.

2004-01-05  Geert Bosch  <bosch@gnat.com>

        * s-poosiz.adb: Update copyright notice.
        (Allocate): Use Task_Lock to protect against concurrent access.
        (Deallocate): Likewise.

2004-01-05  Joel Brobecker  <brobecker@gnat.com>

        * s-stalib.adb (Elab_Final_Code): Add missing year in date inside ???
        comment.


\f
Copyright (C) 2004 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.