Fix bug #1744: mask extra arguments to recursive invocations of $(call ...)

[make.git] / NEWS

GNU make NEWS                                               -*-indented-text-*-
  History of user-visible changes.
  03 October 2002

Copyright (C) 2002  Free Software Foundation, Inc.
See the end for copying conditions.

All changes mentioned here are more fully described in the GNU make
manual, which is contained in this distribution as the file doc/make.texi.

Please send GNU make bug reports to <bug-make@gnu.org>.
See the README file and the GNU make manual for details on sending bug
reports.
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Version 3.81a1

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Version 3.80

* A new feature exists: order-only prerequisites.  These prerequisites
  affect the order in which targets are built, but they do not impact
  the rebuild/no-rebuild decision of their dependents.  That is to say,
  they allow you to require target B be built before target A, without
  requiring that target A will always be rebuilt if target B is updated.
  Patch for this feature provided by Greg McGary <greg@mcgary.org>.

* For compatibility with SysV make, GNU make now supports the peculiar
  syntax $$@, $$(@D), and $$(@F) in the prerequisites list of a rule.
  This syntax is only valid within explicit and static pattern rules: it
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  <egp@free.fr> provided a patch implementing this feature; however, I
  decided to implement it in a different way.

* The argument to the "ifdef" conditional is now expanded before it's
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  useful here.

* A new built-in variable is defined, $(MAKEFILE_LIST).  It contains a
  list of each makefile GNU make has read, or started to read, in the
  order in which they were encountered.  So, the last filename in the
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* A new built-in variable is defined: $(.VARIABLES).  When it is
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* A new command-line option is defined, -B or --always-make.  If
  specified GNU make will consider all targets out-of-date even if they
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* The arguments to $(call ...) functions were being stored in $1, $2,
  etc. as recursive variables, even though they are fully expanded
  before assignment.  This means that escaped dollar signs ($$ etc.)
  were not behaving properly.  Now the arguments are stored as simple
  variables.  This may mean that if you added extra escaping to your
  $(call ...) function arguments you will need to undo it now.

* The variable invoked by $(call ...) can now be recursive: unlike other
  variables it can reference itself and this will not produce an error
  when it is used as the first argument to $(call ...) (but only then).

* New pseudo-target .LOW_RESOLUTION_TIME, superseding the configure
  option --disable-nsec-timestamps.  You might need this if your build
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* Updated to autoconf 2.54 and automake 1.7.  Users should not be impacted.
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Version 3.79.1

* .SECONDARY with no prerequisites now prevents any target from being
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* New configure option --disable-nsec-timestamps, but this was
  superseded in later versions by the .LOW_RESOLUTION_TIME pseudo-target.
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Version 3.79

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Version 3.78

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Version 3.77

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    TARGET: VARIABLE = VALUE

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Version 3.76.1

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      -------              ----------             ----------
    $(basename a.b)        a                      a
    $(basename a.b/c)      a                      a.b/c
    $(suffix a.b)          b                      b
    $(suffix a.b/c)        b/c                    <empty>

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Version 3.68

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Version 3.66

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\f
Version 3.65

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Version 3.61

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Version 3.60

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Version 3.59

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Version 3.58

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Version 3.57

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Version 3.55

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Thanks to Dennis Morse of Stanford University for contributing the initial
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* Variables which are defined by default (e.g., `CC') will no longer be put
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* There is no longer a warning for using the `vpath' directive with an explicit
pathname (instead of a `%' pattern).
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Version 3.51

* When removing intermediate files, only one `rm' command line is printed,
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* There are now automatic variables `$(^D)', `$(^F)', `$(?D)', and `$(?F)'.
These are the directory-only and file-only versions of `$^' and `$?'.

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directory if it exists.

* The automatic variable `$($/)' is no longer defined.

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under -n, -t, or -q (as if the line contained `$(MAKE)').

* For command lines containing `$(MAKE)', `${MAKE}', or leading `+' characters,
only those lines are executed, not their entire rules.
(This is how Unix make behaves for lines containing `$(MAKE)' or `${MAKE}'.)
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Version 3.50

* Filenames in rules will now have ~ and ~USER expanded.

* The `-p' output has been changed so it can be used as a makefile.
(All information that isn't specified by makefiles is prefaced with comment
characters.)
\f
Version 3.49

* The % character can be quoted with backslash in implicit pattern rules,
static pattern rules, `vpath' directives, and `patsubst', `filter', and
`filter-out' functions.  A warning is issued if a `vpath' directive's
pattern contains no %.

* The `wildcard' variable expansion function now expands ~ and ~USER.

* Messages indicating failed commands now contain the target name:
        make: *** [target] Error 1

* The `-p' output format has been changed somewhat to look more like
makefile rules and to give all information that Make has about files.
\f
Version 3.48
\f
Version 3.47

* The `-l' switch with no argument removes any previous load-average limit.

* When the `-w' switch is in effect, and Make has updated makefiles,
it will write a `Leaving directory' messagfe before re-executing itself.
This makes the `directory change tracking' changes to Emacs's compilation
commands work properly.
\f
Version 3.46

* The automatic variable `$*' is now defined for explicit rules,
as it is in Unix make.
\f
Version 3.45

* The `-j' switch is now put in the MAKEFLAGS and MFLAGS variables when
specified without an argument (indicating infinite jobs).
The `-l' switch is not always put in the MAKEFLAGS and MFLAGS variables.

* Make no longer checks hashed directories after running commands.
The behavior implemented in 3.41 caused too much slowdown.
\f
Version 3.44

* A dependency is NOT considered newer than its dependent if
they have the same modification time.  The behavior implemented
in 3.43 conflicts with RCS.
\f
Version 3.43

* Dependency loops are no longer fatal errors.

* A dependency is considered newer than its dependent if
they have the same modification time.
\f
Version 3.42

* The variables F77 and F77FLAGS are now set by default to $(FC) and
$(FFLAGS).  Makefiles designed for System V make may use these variables in
explicit rules and expect them to be set.  Unfortunately, there is no way to
make setting these affect the Fortran implicit rules unless FC and FFLAGS
are not used (and these are used by BSD make).
\f
Version 3.41

* Make now checks to see if its hashed directories are changed by commands.
Other makes that hash directories (Sun, 4.3 BSD) don't do this.
\f
Version 3.39

* The `shell' function no longer captures standard error output.
\f
Version 3.32

* A file beginning with a dot can be the default target if it also contains
a slash (e.g., `../bin/foo').  (Unix make allows this as well.)
\f
Version 3.31

* Archive member names are truncated to 15 characters.

* Yet more USG stuff.

* Minimal support for Microport System V (a 16-bit machine and a
brain-damaged compiler).  This has even lower priority than other USG
support, so if it gets beyond trivial, I will take it out completely.

* Revamped default implicit rules (not much visible change).

* The -d and -p options can come from the environment.
\f
Version 3.30

* Improved support for USG and HPUX (hopefully).

* A variable reference like `$(foo:a=b)', if `a' contains a `%', is
equivalent to `$(patsubst a,b,$(foo))'.

* Defining .DEFAULT with no deps or commands clears its commands.

* New default implicit rules for .S (cpp, then as), and .sh (copy and make
executable).  All default implicit rules that use cpp (even indirectly), use
$(CPPFLAGS).
\f
Version 3.29

* Giving the -j option with no arguments gives you infinite jobs.
\f
Version 3.28

* New option: "-l LOAD" says not to start any new jobs while others are
running if the load average is not below LOAD (a floating-point number).

* There is support in place for implementations of remote command execution
in Make.  See the file remote.c.
\f
Version 3.26

* No more than 10 directories will be kept open at once.
(This number can be changed by redefining MAX_OPEN_DIRECTORIES in dir.c.)
\f
Version 3.25

* Archive files will have their modification times recorded before doing
anything that might change their modification times by updating an archive
member.
\f
Version 3.20

* The `MAKELEVEL' variable is defined for use by makefiles.
\f
Version 3.19

* The recursion level indications in error messages are much shorter than
they were in version 3.14.
\f
Version 3.18

* Leading spaces before directives are ignored (as documented).

* Included makefiles can determine the default goal target.
(System V Make does it this way, so we are being compatible).
\f
Version 3.14.

* Variables that are defaults built into Make will not be put in the
environment for children.  This just saves some environment space and,
except under -e, will be transparent to sub-makes.

* Error messages from sub-makes will indicate the level of recursion.

* Hopefully some speed-up for large directories due to a change in the
directory hashing scheme.

* One child will always get a standard input that is usable.

* Default makefiles that don't exist will be remade and read in.
\f
Version 3.13.

* Count parentheses inside expansion function calls so you can
have nested calls: `$(sort $(foreach x,a b,$(x)))'.
\f
Version 3.12.

* Several bug fixes, including USG and Sun386i support.

* `shell' function to expand shell commands a la `

* If the `-d' flag is given, version information will be printed.

* The `-c' option has been renamed to `-C' for compatibility with tar.

* The `-p' option no longer inhibits other normal operation.

* Makefiles will be updated and re-read if necessary.

* Can now run several commands at once (parallelism), -j option.

* Error messages will contain the level of Make recursion, if any.

* The `MAKEFLAGS' and `MFLAGS' variables will be scanned for options after
makefiles are read.

* A double-colon rule with no dependencies will always have its commands run.
(This is how both the BSD and System V versions of Make do it.)
\f
Version 3.05

(Changes from versions 1 through 3.05 were never recorded.  Sorry.)
\f
----------------------------------------------------------------------
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   Permission is granted to distribute modified versions of this
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