5 eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
8 # automake - create Makefile.in from Makefile.am
9 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
10 # 2003, 2004 Free Software Foundation, Inc.
12 # This program is free software; you can redistribute it and/or modify
13 # it under the terms of the GNU General Public License as published by
14 # the Free Software Foundation; either version 2, or (at your option)
17 # This program is distributed in the hope that it will be useful,
18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 # GNU General Public License for more details.
22 # You should have received a copy of the GNU General Public License
23 # along with this program; if not, write to the Free Software
24 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
27 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
28 # Perl reimplementation by Tom Tromey <tromey@redhat.com>.
34 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
35 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
37 # Override SHELL. This is required on DJGPP so that system() uses
38 # bash, not COMMAND.COM which doesn't quote arguments properly.
39 # Other systems aren't expected to use $SHELL when Automake
40 # runs, but it should be safe to drop the `if DJGPP' guard if
41 # it turns up other systems need the same thing. After all,
42 # if SHELL is used, ./configure's SHELL is always better than
43 # the user's SHELL (which may be something like tcsh).
44 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJGPP'};
48 struct (# Short name of the language (c, f77...).
50 # Nice name of the language (C, Fortran 77...).
53 # List of configure variables which must be defined.
57 # `pure' is `1' or `'. A `pure' language is one where, if
58 # all the files in a directory are of that language, then we
59 # do not require the C compiler or any code to call it.
64 # Name of the compiling variable (COMPILE).
66 # Content of the compiling variable.
68 # Flag to require compilation without linking (-c).
69 'compile_flag' => "\$",
71 # A subroutine to compute a list of possible extensions of
72 # the product given the input extensions.
73 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
74 'output_extensions' => "\$",
75 # A list of flag variables used in 'compile'.
79 # Any tag to pass to libtool while compiling.
80 'libtool_tag' => "\$",
82 # The file to use when generating rules for this language.
83 # The default is 'depend2'.
86 # Name of the linking variable (LINK).
88 # Content of the linking variable.
91 # Name of the linker variable (LD).
93 # Content of the linker variable ($(CC)).
96 # Flag to specify the output file (-o).
97 'output_flag' => "\$",
100 # This is a subroutine which is called whenever we finally
101 # determine the context in which a source file will be
103 '_target_hook' => "\$");
109 if (defined $self->_finish)
111 &{$self->_finish} ();
115 sub target_hook ($$$$)
118 if (defined $self->_target_hook)
120 &{$self->_target_hook} (@_);
127 use Automake::Config;
128 use Automake::General;
130 use Automake::Channels;
131 use Automake::ChannelDefs;
132 use Automake::Configure_ac;
133 use Automake::FileUtils;
134 use Automake::Location;
135 use Automake::Condition qw/TRUE FALSE/;
136 use Automake::DisjConditions;
137 use Automake::Options;
138 use Automake::Version;
139 use Automake::Variable;
140 use Automake::VarDef;
142 use Automake::RuleDef;
143 use Automake::Wrap 'makefile_wrap';
151 # Some regular expressions. One reason to put them here is that it
152 # makes indentation work better in Emacs.
154 # Writing singled-quoted-$-terminated regexes is a pain because
155 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
156 # by a closing quote. Letting perl-mode think the quote is not closed
157 # leads to all sort of misindentations. On the other hand, defining
158 # regexes as double-quoted strings is far less readable. So usually
161 # $REGEX = '^regex_value' . "\$";
163 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
164 my $WHITE_PATTERN = '^\s*' . "\$";
165 my $COMMENT_PATTERN = '^#';
166 my $TARGET_PATTERN='[$a-zA-Z_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
167 # A rule has three parts: a list of targets, a list of dependencies,
168 # and optionally actions.
170 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
172 # Only recognize leading spaces, not leading tabs. If we recognize
173 # leading tabs here then we need to make the reader smarter, because
174 # otherwise it will think rules like `foo=bar; \' are errors.
175 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
176 # This pattern recognizes a Gnits version id and sets $1 if the
177 # release is an alpha release. We also allow a suffix which can be
178 # used to extend the version number with a "fork" identifier.
179 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
181 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
183 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
185 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
186 my $PATH_PATTERN = '(\w|[/.-])+';
187 # This will pass through anything not of the prescribed form.
188 my $INCLUDE_PATTERN = ('^include\s+'
189 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
190 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
191 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
193 # Match `-d' as a command-line argument in a string.
194 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
195 # Directories installed during 'install-exec' phase.
196 my $EXEC_DIR_PATTERN =
197 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
199 # Values for AC_CANONICAL_*
200 use constant AC_CANONICAL_HOST => 1;
201 use constant AC_CANONICAL_SYSTEM => 2;
203 # Values indicating when something should be cleaned.
204 use constant MOSTLY_CLEAN => 0;
205 use constant CLEAN => 1;
206 use constant DIST_CLEAN => 2;
207 use constant MAINTAINER_CLEAN => 3;
210 my @libtool_files = qw(ltmain.sh config.guess config.sub);
211 # ltconfig appears here for compatibility with old versions of libtool.
212 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
214 # Commonly found files we look for and automatically include in
217 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
218 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
219 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
220 depcomp elisp-comp install-sh libversion.in mdate-sh missing
221 mkinstalldirs py-compile texinfo.tex ylwrap),
222 @libtool_files, @libtool_sometimes);
224 # Commonly used files we auto-include, but only sometimes. This list
225 # is used for the --help output only.
226 my @common_sometimes =
227 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
228 configure.ac configure.in stamp-vti);
230 # Standard directories from the GNU Coding Standards, and additional
231 # pkg* directories from Automake. Stored in a hash for fast member check.
232 my %standard_prefix =
233 map { $_ => 1 } (qw(bin data exec include info lib libexec lisp
234 localstate man man1 man2 man3 man4 man5 man6
235 man7 man8 man9 oldinclude pkgdatadir
236 pkgincludedir pkglibdir sbin sharedstate
239 # Copyright on generated Makefile.ins.
240 my $gen_copyright = "\
241 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
242 # 2003, 2004 Free Software Foundation, Inc.
243 # This Makefile.in is free software; the Free Software Foundation
244 # gives unlimited permission to copy and/or distribute it,
245 # with or without modifications, as long as this notice is preserved.
247 # This program is distributed in the hope that it will be useful,
248 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
249 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
250 # PARTICULAR PURPOSE.
253 # These constants are returned by lang_*_rewrite functions.
254 # LANG_SUBDIR means that the resulting object file should be in a
255 # subdir if the source file is. In this case the file name cannot
256 # have `..' components.
257 use constant LANG_IGNORE => 0;
258 use constant LANG_PROCESS => 1;
259 use constant LANG_SUBDIR => 2;
261 # These are used when keeping track of whether an object can be built
262 # by two different paths.
263 use constant COMPILE_LIBTOOL => 1;
264 use constant COMPILE_ORDINARY => 2;
266 # We can't always associate a location to a variable or a rule,
267 # when its defined by Automake. We use INTERNAL in this case.
268 use constant INTERNAL => new Automake::Location;
271 ## ---------------------------------- ##
272 ## Variables related to the options. ##
273 ## ---------------------------------- ##
275 # TRUE if we should always generate Makefile.in.
276 my $force_generation = 1;
278 # From the Perl manual.
279 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
281 # TRUE if missing standard files should be installed.
284 # TRUE if we should copy missing files; otherwise symlink if possible.
285 my $copy_missing = 0;
287 # TRUE if we should always update files that we know about.
288 my $force_missing = 0;
291 ## ---------------------------------------- ##
292 ## Variables filled during files scanning. ##
293 ## ---------------------------------------- ##
295 # Name of the configure.ac file.
298 # Files found by scanning configure.ac for LIBOBJS.
301 # Names used in AC_CONFIG_HEADER call.
302 my @config_headers = ();
304 # Names used in AC_CONFIG_LINKS call.
305 my @config_links = ();
307 # Directory where output files go. Actually, output files are
308 # relative to this directory.
309 my $output_directory;
311 # List of Makefile.am's to process, and their corresponding outputs.
312 my @input_files = ();
313 my %output_files = ();
315 # Complete list of Makefile.am's that exist.
316 my @configure_input_files = ();
318 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
320 my @other_input_files = ();
321 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
322 # The keys are the files created by these macros.
323 my %ac_config_files_location = ();
325 # Directory to search for configure-required files. This
326 # will be computed by &locate_aux_dir and can be set using
327 # AC_CONFIG_AUX_DIR in configure.ac.
328 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
329 my $config_aux_dir = '';
330 my $config_aux_dir_set_in_configure_ac = 0;
331 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
333 my $am_config_aux_dir = '';
335 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
336 my $seen_gettext = 0;
337 # Whether AM_GNU_GETTEXT([external]) is used.
338 my $seen_gettext_external = 0;
339 # Where AM_GNU_GETTEXT appears.
340 my $ac_gettext_location;
342 # Lists of tags supported by Libtool.
343 my %libtool_tags = ();
345 # TRUE if we've seen AC_CANONICAL_(HOST|SYSTEM).
346 my $seen_canonical = 0;
347 my $canonical_location;
349 # Where AM_MAINTAINER_MODE appears.
352 # Actual version we've seen.
353 my $package_version = '';
355 # Where version is defined.
356 my $package_version_location;
358 # TRUE if we've seen AC_ENABLE_MULTILIB.
359 my $seen_multilib = 0;
361 # TRUE if we've seen AM_PROG_CC_C_O
364 # Where AM_INIT_AUTOMAKE is called;
365 my $seen_init_automake = 0;
367 # TRUE if we've seen AM_AUTOMAKE_VERSION.
368 my $seen_automake_version = 0;
370 # Hash table of discovered configure substitutions. Keys are names,
371 # values are `FILE:LINE' strings which are used by error message
373 my %configure_vars = ();
375 # Files included by $configure_ac.
376 my @configure_deps = ();
378 # Greatest timestamp of configure's dependencies.
379 my $configure_deps_greatest_timestamp = 0;
381 # Hash table of AM_CONDITIONAL variables seen in configure.
382 my %configure_cond = ();
384 # This maps extensions onto language names.
385 my %extension_map = ();
387 # List of the DIST_COMMON files we discovered while reading
389 my $configure_dist_common = '';
391 # This maps languages names onto objects.
394 # List of targets we must always output.
395 # FIXME: Complete, and remove falsely required targets.
396 my %required_targets =
409 # FIXME: Not required, temporary hacks.
410 # Well, actually they are sort of required: the -recursive
411 # targets will run them anyway...
416 'install-data-am' => 1,
417 'install-exec-am' => 1,
418 'installcheck-am' => 1,
424 # Set to 1 if this run will create the Makefile.in that distribute
425 # the files in config_aux_dir.
426 my $automake_will_process_aux_dir = 0;
428 # The name of the Makefile currently being processed.
432 ################################################################
434 ## ------------------------------------------ ##
435 ## Variables reset by &initialize_per_input. ##
436 ## ------------------------------------------ ##
438 # Basename and relative dir of the input file.
442 # Same but wrt Makefile.in.
446 # Greatest timestamp of the output's dependencies (excluding
447 # configure's dependencies).
448 my $output_deps_greatest_timestamp;
450 # These two variables are used when generating each Makefile.in.
451 # They hold the Makefile.in until it is ready to be printed.
458 # This is the conditional stack, updated on if/else/endif, and
459 # used to build Condition objects.
462 # This holds the set of included files.
465 # This holds a list of directories which we must create at `dist'
466 # time. This is used in some strange scenarios involving weird
467 # AC_OUTPUT commands.
470 # List of dependencies for the obvious targets.
475 # Keys in this hash table are files to delete. The associated
476 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
479 # Keys in this hash table are object files or other files in
480 # subdirectories which need to be removed. This only holds files
481 # which are created by compilations. The value in the hash indicates
482 # when the file should be removed.
483 my %compile_clean_files;
485 # Keys in this hash table are directories where we expect to build a
486 # libtool object. We use this information to decide what directories
488 my %libtool_clean_directories;
490 # Value of `$(SOURCES)', used by tags.am.
492 # Sources which go in the distribution.
495 # This hash maps object file names onto their corresponding source
496 # file names. This is used to ensure that each object is created
497 # by a single source file.
500 # This hash maps object file names onto an integer value representing
501 # whether this object has been built via ordinary compilation or
502 # libtool compilation (the COMPILE_* constants).
503 my %object_compilation_map;
506 # This keeps track of the directories for which we've already
507 # created dirstamp code.
513 # This is a list of all targets to run during "make dist".
516 # Keys in this hash are the basenames of files which must depend on
517 # ansi2knr. Values are either the empty string, or the directory in
518 # which the ANSI source file appears; the directory must have a
522 # This is the name of the redirect `all' target to use.
525 # This keeps track of which extensions we've seen (that we care
529 # This is random scratch space for the language finish functions.
530 # Don't randomly overwrite it; examine other uses of keys first.
531 my %language_scratch;
533 # We keep track of which objects need special (per-executable)
534 # handling on a per-language basis.
535 my %lang_specific_files;
537 # This is set when `handle_dist' has finished. Once this happens,
538 # we should no longer push on dist_common.
541 # Used to store a set of linkers needed to generate the sources currently
542 # under consideration.
545 # True if we need `LINK' defined. This is a hack.
548 # Was get_object_extension run?
549 # FIXME: This is a hack. a better switch should be found.
550 my $get_object_extension_was_run;
552 # Record each file processed by make_paragraphs.
553 my %transformed_files;
555 ################################################################
557 # var_SUFFIXES_trigger ($TYPE, $VALUE)
558 # ------------------------------------
559 # This is called by Automake::Variable::define() when SUFFIXES
560 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
561 # The work here needs to be performed as a side-effect of the
562 # macro_define() call because SUFFIXES definitions impact
563 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
565 sub var_SUFFIXES_trigger ($$)
567 my ($type, $value) = @_;
568 accept_extensions (split (' ', $value));
570 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
572 ################################################################
574 ## --------------------------------- ##
575 ## Forward subroutine declarations. ##
576 ## --------------------------------- ##
577 sub register_language (%);
578 sub file_contents_internal ($$$%);
579 sub define_files_variable ($\@$$);
582 # &initialize_per_input ()
583 # ------------------------
584 # (Re)-Initialize per-Makefile.am variables.
585 sub initialize_per_input ()
587 reset_local_duplicates ();
590 $am_relative_dir = '';
595 $output_deps_greatest_timestamp = 0;
599 $output_trailer = '';
603 Automake::Options::reset;
604 Automake::Variable::reset;
605 Automake::Rule::reset;
623 %object_compilation_map = ();
635 %extension_seen = ();
637 %language_scratch = ();
639 %lang_specific_files = ();
641 $handle_dist_run = 0;
645 $get_object_extension_was_run = 0;
647 %compile_clean_files = ();
649 # We always include `.'. This isn't strictly correct.
650 %libtool_clean_directories = ('.' => 1);
652 %transformed_files = ();
656 ################################################################
658 # Initialize our list of languages that are internally supported.
661 register_language ('name' => 'c',
663 'config_vars' => ['CC'],
666 'flags' => ['CFLAGS', 'CPPFLAGS'],
667 'compiler' => 'COMPILE',
668 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
672 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
673 'compile_flag' => '-c',
674 'libtool_tag' => 'CC',
675 'extensions' => ['.c'],
676 '_finish' => \&lang_c_finish);
679 register_language ('name' => 'cxx',
681 'config_vars' => ['CXX'],
682 'linker' => 'CXXLINK',
683 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
685 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
686 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
687 'compiler' => 'CXXCOMPILE',
688 'compile_flag' => '-c',
689 'output_flag' => '-o',
690 'libtool_tag' => 'CXX',
694 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
697 register_language ('name' => 'objc',
698 'Name' => 'Objective C',
699 'config_vars' => ['OBJC'],
700 'linker' => 'OBJCLINK',,
701 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
703 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
704 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
705 'compiler' => 'OBJCCOMPILE',
706 'compile_flag' => '-c',
707 'output_flag' => '-o',
711 'extensions' => ['.m']);
714 register_language ('name' => 'header',
716 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
719 'output_extensions' => sub { return () },
721 '_finish' => sub { });
724 register_language ('name' => 'yacc',
726 'config_vars' => ['YACC'],
727 'flags' => ['YFLAGS'],
728 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
729 'compiler' => 'YACCCOMPILE',
730 'extensions' => ['.y'],
731 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
733 'rule_file' => 'yacc',
734 '_finish' => \&lang_yacc_finish,
735 '_target_hook' => \&lang_yacc_target_hook);
736 register_language ('name' => 'yaccxx',
737 'Name' => 'Yacc (C++)',
738 'config_vars' => ['YACC'],
739 'rule_file' => 'yacc',
740 'flags' => ['YFLAGS'],
741 'compiler' => 'YACCCOMPILE',
742 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
743 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
744 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
746 '_finish' => \&lang_yacc_finish,
747 '_target_hook' => \&lang_yacc_target_hook);
750 register_language ('name' => 'lex',
752 'config_vars' => ['LEX'],
753 'rule_file' => 'lex',
754 'flags' => ['LFLAGS'],
755 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
756 'compiler' => 'LEXCOMPILE',
757 'extensions' => ['.l'],
758 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
760 '_finish' => \&lang_lex_finish,
761 '_target_hook' => \&lang_lex_target_hook);
762 register_language ('name' => 'lexxx',
763 'Name' => 'Lex (C++)',
764 'config_vars' => ['LEX'],
765 'rule_file' => 'lex',
766 'flags' => ['LFLAGS'],
767 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
768 'compiler' => 'LEXCOMPILE',
769 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
770 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
772 '_finish' => \&lang_lex_finish,
773 '_target_hook' => \&lang_lex_target_hook);
776 register_language ('name' => 'asm',
777 'Name' => 'Assembler',
778 'config_vars' => ['CCAS', 'CCASFLAGS'],
780 'flags' => ['CCASFLAGS'],
781 # Users can set AM_ASFLAGS to includes DEFS, INCLUDES,
782 # or anything else required. They can also set AS.
783 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
784 'compiler' => 'CCASCOMPILE',
785 'compile_flag' => '-c',
786 'extensions' => ['.s', '.S'],
788 # With assembly we still use the C linker.
789 '_finish' => \&lang_c_finish);
792 register_language ('name' => 'f77',
793 'Name' => 'Fortran 77',
794 'linker' => 'F77LINK',
795 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
796 'flags' => ['FFLAGS'],
797 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
798 'compiler' => 'F77COMPILE',
799 'compile_flag' => '-c',
800 'output_flag' => '-o',
801 'libtool_tag' => 'F77',
805 'extensions' => ['.f', '.for']);
808 register_language ('name' => 'fc',
810 'linker' => 'FCLINK',
811 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
812 'flags' => ['FCFLAGS'],
813 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
814 'compiler' => 'FCCOMPILE',
815 'compile_flag' => '-c',
816 'output_flag' => '-o',
820 'extensions' => ['.f90', '.f95']);
822 # Preprocessed Fortran
823 register_language ('name' => 'ppfc',
824 'Name' => 'Preprocessed Fortran',
825 'config_vars' => ['FC'],
826 'linker' => 'FCLINK',
827 'link' => '$(FCLD) $(AM_FFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
830 'flags' => ['FCFLAGS', 'CPPFLAGS'],
831 'compiler' => 'PPFCCOMPILE',
832 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
833 'compile_flag' => '-c',
834 'output_flag' => '-o',
835 'libtool_tag' => 'FC',
837 'extensions' => ['.F90','.F95']);
839 # Preprocessed Fortran 77
841 # The current support for preprocessing Fortran 77 just involves
842 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
843 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
844 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
845 # for `make' Version 3.76 Beta' (specifically, from info file
846 # `(make)Catalogue of Rules').
848 # A better approach would be to write an Autoconf test
849 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
850 # Fortran 77 compilers know how to do preprocessing. The Autoconf
851 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
852 # preprocessing capabilities, and then fall back on cpp (if cpp were
854 register_language ('name' => 'ppf77',
855 'Name' => 'Preprocessed Fortran 77',
856 'config_vars' => ['F77'],
857 'linker' => 'F77LINK',
858 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
861 'flags' => ['FFLAGS', 'CPPFLAGS'],
862 'compiler' => 'PPF77COMPILE',
863 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
864 'compile_flag' => '-c',
865 'output_flag' => '-o',
866 'libtool_tag' => 'F77',
868 'extensions' => ['.F']);
871 register_language ('name' => 'ratfor',
873 'config_vars' => ['F77'],
874 'linker' => 'F77LINK',
875 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
878 'flags' => ['RFLAGS', 'FFLAGS'],
880 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
881 'compiler' => 'RCOMPILE',
882 'compile_flag' => '-c',
883 'output_flag' => '-o',
884 'libtool_tag' => 'F77',
886 'extensions' => ['.r']);
889 register_language ('name' => 'java',
891 'config_vars' => ['GCJ'],
892 'linker' => 'GCJLINK',
893 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
895 'flags' => ['GCJFLAGS'],
896 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
897 'compiler' => 'GCJCOMPILE',
898 'compile_flag' => '-c',
899 'output_flag' => '-o',
900 'libtool_tag' => 'GCJ',
904 'extensions' => ['.java', '.class', '.zip', '.jar']);
906 ################################################################
908 # Error reporting functions.
910 # err_am ($MESSAGE, [%OPTIONS])
911 # -----------------------------
912 # Uncategorized errors about the current Makefile.am.
915 msg_am ('error', @_);
918 # err_ac ($MESSAGE, [%OPTIONS])
919 # -----------------------------
920 # Uncategorized errors about configure.ac.
923 msg_ac ('error', @_);
926 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
927 # ---------------------------------------
928 # Messages about about the current Makefile.am.
931 my ($channel, $msg, %opts) = @_;
932 msg $channel, "${am_file}.am", $msg, %opts;
935 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
936 # ---------------------------------------
937 # Messages about about configure.ac.
940 my ($channel, $msg, %opts) = @_;
941 msg $channel, $configure_ac, $msg, %opts;
944 ################################################################
948 # Return a configure-style substitution using the indicated text.
949 # We do this to avoid having the substitutions directly in automake.in;
950 # when we do that they are sometimes removed and this causes confusion
955 return '@' . $text . '@';
958 ################################################################
962 # &backname ($REL-DIR)
963 # --------------------
964 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
965 # For instance `src/foo' => `../..'.
966 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
971 foreach (split (/\//, $file))
973 next if $_ eq '.' || $_ eq '';
983 return join ('/', @res) || '.';
986 ################################################################
989 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
992 my $var = var ('AUTOMAKE_OPTIONS');
995 # FIXME: We should disallow conditional definitions of AUTOMAKE_OPTIONS.
996 if (process_option_list ($var->rdef (TRUE)->location,
997 $var->value_as_list_recursive (cond_filter =>
1004 if ($strictness == GNITS)
1006 set_option ('readme-alpha', INTERNAL);
1007 set_option ('std-options', INTERNAL);
1008 set_option ('check-news', INTERNAL);
1014 # shadow_unconditionally ($varname, $where)
1015 # -----------------------------------------
1016 # Return a $(variable) that contains all possible values
1017 # $varname can take.
1018 # If the VAR wasn't defined conditionally, return $(VAR).
1019 # Otherwise we create a am__VAR_DIST variable which contains
1020 # all possible values, and return $(am__VAR_DIST).
1021 sub shadow_unconditionally ($$)
1023 my ($varname, $where) = @_;
1024 my $var = var $varname;
1025 if ($var->has_conditional_contents)
1027 $varname = "am__${varname}_DIST";
1028 my @files = uniq ($var->value_as_list_recursive);
1029 define_pretty_variable ($varname, TRUE, $where, @files);
1031 return "\$($varname)"
1034 # get_object_extension ($OUT)
1035 # ---------------------------
1036 # Return object extension. Just once, put some code into the output.
1037 # OUT is the name of the output file
1038 sub get_object_extension
1042 # Maybe require libtool library object files.
1043 my $extension = '.$(OBJEXT)';
1044 $extension = '.lo' if ($out =~ /\.la$/);
1046 # Check for automatic de-ANSI-fication.
1047 $extension = '$U' . $extension
1048 if option 'ansi2knr';
1050 $get_object_extension_was_run = 1;
1056 # Call finish function for each language that was used.
1057 sub handle_languages
1059 if (! option 'no-dependencies')
1061 # Include auto-dep code. Don't include it if DEP_FILES would
1063 if (&saw_sources_p (0) && keys %dep_files)
1065 # Set location of depcomp.
1066 &define_variable ('depcomp',
1067 "\$(SHELL) $am_config_aux_dir/depcomp",
1069 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1071 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1073 my @deplist = sort keys %dep_files;
1074 # Generate each `include' individually. Irix 6 make will
1075 # not properly include several files resulting from a
1076 # variable expansion; generating many separate includes
1078 $output_rules .= "\n";
1079 foreach my $iter (@deplist)
1081 $output_rules .= (subst ('AMDEP_TRUE')
1082 . subst ('am__include')
1084 . subst ('am__quote')
1086 . subst ('am__quote')
1090 # Compute the set of directories to remove in distclean-depend.
1091 my @depdirs = uniq (map { dirname ($_) } @deplist);
1092 $output_rules .= &file_contents ('depend',
1093 new Automake::Location,
1094 DEPDIRS => "@depdirs");
1099 &define_variable ('depcomp', '', INTERNAL);
1100 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1105 # Is the c linker needed?
1107 foreach my $ext (sort keys %extension_seen)
1109 next unless $extension_map{$ext};
1111 my $lang = $languages{$extension_map{$ext}};
1113 my $rule_file = $lang->rule_file || 'depend2';
1115 # Get information on $LANG.
1116 my $pfx = $lang->autodep;
1117 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1119 my ($AMDEP, $FASTDEP) =
1120 (option 'no-dependencies' || $lang->autodep eq 'no')
1121 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1123 my %transform = ('EXT' => $ext,
1127 'FASTDEP' => $FASTDEP,
1128 '-c' => $lang->compile_flag || '',
1130 => (count_files_for_language ($lang->name) > 1));
1132 # Generate the appropriate rules for this extension.
1133 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1134 || defined $lang->compile)
1136 # Some C compilers don't support -c -o. Use it only if really
1138 my $output_flag = $lang->output_flag || '';
1141 && $lang->name eq 'c'
1142 && option 'subdir-objects');
1144 # Compute a possible derived extension.
1145 # This is not used by depend2.am.
1146 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1148 # When we output an inference rule like `.c.o:' we
1149 # have two cases to consider: either subdir-objects
1150 # is used, or it is not.
1152 # In the latter case the rule is used to build objects
1153 # in the current directory, and dependencies always
1154 # go into `./$(DEPDIR)/'. We can hard-code this value.
1156 # In the former case the rule can be used to build
1157 # objects in sub-directories too. Dependencies should
1158 # go into the appropriate sub-directories, e.g.,
1159 # `sub/$(DEPDIR)/'. The value of this directory
1160 # need the be computed on-the-fly.
1162 # DEPBASE holds the name of this directory, plus the
1163 # basename part of the object file (extensions Po, TPo,
1164 # Plo, TPlo will be added later as appropriate). It is
1165 # either hardcoded, or a shell variable (`$depbase') that
1166 # will be computed by the rule.
1168 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1170 file_contents ($rule_file,
1171 new Automake::Location,
1175 'DERIVED-EXT' => $der_ext,
1177 DEPBASE => $depbase,
1184 COMPILE => '$(' . $lang->compiler . ')',
1185 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1187 SUBDIROBJ => !! option 'subdir-objects');
1190 # Now include code for each specially handled object with this
1192 my %seen_files = ();
1193 foreach my $file (@{$lang_specific_files{$lang->name}})
1195 my ($derived, $source, $obj, $myext, %file_transform) = @$file;
1197 # We might see a given object twice, for instance if it is
1198 # used under different conditions.
1199 next if defined $seen_files{$obj};
1200 $seen_files{$obj} = 1;
1202 prog_error ("found " . $lang->name .
1203 " in handle_languages, but compiler not defined")
1204 unless defined $lang->compile;
1206 my $obj_compile = $lang->compile;
1208 # Rewrite each occurrence of `AM_$flag' in the compile
1209 # rule into `${derived}_$flag' if it exists.
1210 for my $flag (@{$lang->flags})
1212 my $val = "${derived}_$flag";
1213 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1217 my $libtool_tag = '';
1218 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1220 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1224 '$(LIBTOOL) --mode=compile ' . $libtool_tag . $obj_compile;
1226 # We _need_ `-o' for per object rules.
1227 my $output_flag = $lang->output_flag || '-o';
1229 my $depbase = dirname ($obj);
1233 unless $depbase eq '';
1234 $depbase .= '$(DEPDIR)/' . basename ($obj);
1236 # Support for deansified files in subdirectories is ugly
1237 # enough to deserve an explanation.
1239 # A Note about normal ansi2knr processing first. On
1241 # AUTOMAKE_OPTIONS = ansi2knr
1242 # bin_PROGRAMS = foo
1243 # foo_SOURCES = foo.c
1245 # we generate rules similar to:
1247 # foo: foo$U.o; link ...
1248 # foo$U.o: foo$U.c; compile ...
1249 # foo_.c: foo.c; ansi2knr ...
1251 # this is fairly compact, and will call ansi2knr depending
1252 # on the value of $U (`' or `_').
1254 # It's harder with subdir sources. On
1256 # AUTOMAKE_OPTIONS = ansi2knr
1257 # bin_PROGRAMS = foo
1258 # foo_SOURCES = sub/foo.c
1260 # we have to create foo_.c in the current directory.
1261 # (Unless the user asks 'subdir-objects'.) This is important
1262 # in case the same file (`foo.c') is compiled from other
1263 # directories with different cpp options: foo_.c would
1264 # be preprocessed for only one set of options if it were
1265 # put in the subdirectory.
1267 # Because foo$U.o must be built from either foo_.c or
1268 # sub/foo.c we can't be as concise as in the first example.
1271 # foo: foo$U.o; link ...
1272 # foo_.o: foo_.c; compile ...
1273 # foo.o: sub/foo.c; compile ...
1274 # foo_.c: foo.c; ansi2knr ...
1276 # This is why we'll now transform $rule_file twice
1277 # if we detect this case.
1278 # A first time we output the compile rule with `$U'
1279 # replaced by `_' and the source directory removed,
1280 # and another time we simply remove `$U'.
1282 # Note that at this point $source (as computed by
1283 # &handle_single_transform) is `sub/foo$U.c'.
1284 # This can be confusing: it can be used as-is when
1285 # subdir-objects is set, otherwise you have to know
1286 # it really means `foo_.c' or `sub/foo.c'.
1287 my $objdir = dirname ($obj);
1288 my $srcdir = dirname ($source);
1289 if ($lang->ansi && $obj =~ /\$U/)
1291 prog_error "`$obj' contains \$U, but `$source' doesn't."
1292 if $source !~ /\$U/;
1294 (my $source_ = $source) =~ s/\$U/_/g;
1295 # Output an additional rule if _.c and .c are not in
1296 # the same directory. (_.c is always in $objdir.)
1297 if ($objdir ne $srcdir)
1299 (my $obj_ = $obj) =~ s/\$U/_/g;
1300 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1301 $source_ = basename ($source_);
1304 file_contents ($rule_file,
1305 new Automake::Location,
1309 DEPBASE => $depbase_,
1312 OBJ => "$obj_$myext",
1313 OBJOBJ => "$obj_.obj",
1314 LTOBJ => "$obj_.lo",
1316 COMPILE => $obj_compile,
1317 LTCOMPILE => $obj_ltcompile,
1321 $depbase =~ s/\$U//g;
1322 $source =~ s/\$U//g;
1327 file_contents ($rule_file,
1328 new Automake::Location,
1332 DEPBASE => $depbase,
1335 # Use $myext and not `.o' here, in case
1336 # we are actually building a new source
1337 # file -- e.g. via yacc.
1338 OBJ => "$obj$myext",
1339 OBJOBJ => "$obj.obj",
1342 COMPILE => $obj_compile,
1343 LTCOMPILE => $obj_ltcompile,
1348 # The rest of the loop is done once per language.
1349 next if defined $done{$lang};
1352 # Load the language dependent Makefile chunks.
1353 my %lang = map { uc ($_) => 0 } keys %languages;
1354 $lang{uc ($lang->name)} = 1;
1355 $output_rules .= file_contents ('lang-compile',
1356 new Automake::Location,
1359 # If the source to a program consists entirely of code from a
1360 # `pure' language, for instance C++ for Fortran 77, then we
1361 # don't need the C compiler code. However if we run into
1362 # something unusual then we do generate the C code. There are
1363 # probably corner cases here that do not work properly.
1364 # People linking Java code to Fortran code deserve pain.
1365 $needs_c ||= ! $lang->pure;
1367 define_compiler_variable ($lang)
1368 if ($lang->compile);
1370 define_linker_variable ($lang)
1373 require_variables ("$am_file.am", $lang->Name . " source seen",
1374 TRUE, @{$lang->config_vars});
1376 # Call the finisher.
1379 # Flags listed in `->flags' are user variables (per GNU Standards),
1380 # they should not be overridden in the Makefile...
1381 my @dont_override = @{$lang->flags};
1382 # ... and so is LDFLAGS.
1383 push @dont_override, 'LDFLAGS' if $lang->link;
1385 foreach my $flag (@dont_override)
1387 my $var = var $flag;
1390 for my $cond ($var->conditions->conds)
1392 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1394 msg_cond_var ('gnu', $cond, $flag,
1395 "`$flag' is a user variable, "
1396 . "you should not override it;\n"
1397 . "use `AM_$flag' instead.");
1404 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1405 # suffix rule was learned), don't bother with the C stuff. But if
1406 # anything else creeps in, then use it.
1408 if $need_link || suffix_rules_count > 1;
1412 &define_compiler_variable ($languages{'c'})
1413 unless defined $done{$languages{'c'}};
1414 define_linker_variable ($languages{'c'});
1418 # Check to make sure a source defined in LIBOBJS is not explicitly
1419 # mentioned. This is a separate function (as opposed to being inlined
1420 # in handle_source_transform) because it isn't always appropriate to
1422 sub check_libobjs_sources
1424 my ($one_file, $unxformed) = @_;
1426 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1427 'dist_EXTRA_', 'nodist_EXTRA_')
1430 my $varname = $prefix . $one_file . '_SOURCES';
1431 my $var = var ($varname);
1434 @files = $var->value_as_list_recursive;
1436 elsif ($prefix eq '')
1438 @files = ($unxformed . '.c');
1445 foreach my $file (@files)
1447 err_var ($prefix . $one_file . '_SOURCES',
1448 "automatically discovered file `$file' should not" .
1449 " be explicitly mentioned")
1450 if defined $libsources{$file};
1457 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1458 # -----------------------------------------------------------------------------
1459 # Does much of the actual work for handle_source_transform.
1461 # $VAR is the name of the variable that the source filenames come from
1462 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1463 # $DERIVED is the name of resulting executable or library
1464 # $OBJ is the object extension (e.g., `$U.lo')
1465 # $FILE the source file to transform
1466 # %TRANSFORM contains extras arguments to pass to file_contents
1467 # when producing explicit rules
1468 # Result is a list of the names of objects
1469 # %linkers_used will be updated with any linkers needed
1470 sub handle_single_transform ($$$$$%)
1472 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1473 my @files = ($_file);
1475 my $nonansi_obj = $obj;
1476 $nonansi_obj =~ s/\$U//g;
1478 # Turn sources into objects. We use a while loop like this
1479 # because we might add to @files in the loop.
1480 while (scalar @files > 0)
1484 # Configure substitutions in _SOURCES variables are errors.
1487 my $parent_msg = '';
1488 $parent_msg = "\nand is referred to from `$topparent'"
1489 if $topparent ne $var->name;
1491 "`" . $var->name . "' includes configure substitution `$_'"
1492 . $parent_msg . ";\nconfigure " .
1493 "substitutions are not allowed in _SOURCES variables");
1497 # If the source file is in a subdirectory then the `.o' is put
1498 # into the current directory, unless the subdir-objects option
1501 # Split file name into base and extension.
1502 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1504 my $directory = $1 || '';
1508 # We must generate a rule for the object if it requires its own flags.
1510 my ($linker, $object);
1512 # This records whether we've seen a derived source file (e.g.
1514 my $derived_source = 0;
1516 # This holds the `aggregate context' of the file we are
1517 # currently examining. If the file is compiled with
1518 # per-object flags, then it will be the name of the object.
1519 # Otherwise it will be `AM'. This is used by the target hook
1520 # language function.
1521 my $aggregate = 'AM';
1523 $extension = &derive_suffix ($extension, $nonansi_obj);
1525 if ($extension_map{$extension} &&
1526 ($lang = $languages{$extension_map{$extension}}))
1528 # Found the language, so see what it says.
1529 &saw_extension ($extension);
1531 # Note: computed subr call. The language rewrite function
1532 # should return one of the LANG_* constants. It could
1533 # also return a list whose first value is such a constant
1534 # and whose second value is a new source extension which
1535 # should be applied. This means this particular language
1536 # generates another source file which we must then process
1538 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1539 my ($r, $source_extension)
1540 = &$subr ($directory, $base, $extension);
1541 # Skip this entry if we were asked not to process it.
1542 next if $r == LANG_IGNORE;
1544 # Now extract linker and other info.
1545 $linker = $lang->linker;
1548 if (defined $source_extension)
1550 $this_obj_ext = $source_extension;
1551 $derived_source = 1;
1555 $this_obj_ext = $obj;
1559 $this_obj_ext = $nonansi_obj;
1561 $object = $base . $this_obj_ext;
1563 # Do we have per-executable flags for this executable?
1564 my $have_per_exec_flags = 0;
1565 foreach my $flag (@{$lang->flags})
1567 if (set_seen ("${derived}_$flag"))
1569 $have_per_exec_flags = 1;
1574 if ($have_per_exec_flags)
1576 # We have a per-executable flag in effect for this
1577 # object. In this case we rewrite the object's
1578 # name to ensure it is unique. We also require
1579 # the `compile' program to deal with compilers
1580 # where `-c -o' does not work.
1582 # We choose the name `DERIVED_OBJECT' to ensure
1583 # (1) uniqueness, and (2) continuity between
1584 # invocations. However, this will result in a
1585 # name that is too long for losing systems, in
1586 # some situations. So we provide _SHORTNAME to
1589 my $dname = $derived;
1590 my $var = var ($derived . '_SHORTNAME');
1593 # FIXME: should use the same Condition as
1594 # the _SOURCES variable. But this is really
1595 # silly overkill -- nobody should have
1596 # conditional shortnames.
1597 $dname = $var->variable_value;
1599 $object = $dname . '-' . $object;
1601 require_conf_file ("$am_file.am", FOREIGN, 'compile')
1602 if $lang->name eq 'c';
1604 prog_error ($lang->name . " flags defined without compiler")
1605 if ! defined $lang->compile;
1610 # If rewrite said it was ok, put the object into a
1612 if ($r == LANG_SUBDIR && $directory ne '')
1614 $object = $directory . '/' . $object;
1617 # If the object file has been renamed (because per-target
1618 # flags are used) we cannot compile the file with an
1619 # inference rule: we need an explicit rule.
1621 # If the source is in a subdirectory and the object is in
1622 # the current directory, we also need an explicit rule.
1624 # If both source and object files are in a subdirectory
1625 # (this happens when the subdir-objects option is used),
1626 # then the inference will work.
1628 # The latter case deserves a historical note. When the
1629 # subdir-objects option was added on 1999-04-11 it was
1630 # thought that inferences rules would work for
1631 # subdirectory objects too. Later, on 1999-11-22,
1632 # automake was changed to output explicit rules even for
1633 # subdir-objects. Nobody remembers why, but this occured
1634 # soon after the merge of the user-dep-gen-branch so it
1635 # might be related. In late 2003 people complained about
1636 # the size of the generated Makefile.ins (libgcj, with
1637 # 2200+ subdir objects was reported to have a 9MB
1638 # Makefile), so we now rely on inference rules again.
1639 # Maybe we'll run across the same issue as in the past,
1640 # but at least this time we can document it. However since
1641 # dependency tracking has evolved it is possible that
1642 # our old problem no longer exists.
1643 # Using inference rules for subdir-objects has been tested
1644 # with GNU make, Solaris make, Ultrix make, BSD make,
1645 # HP-UX make, and OSF1 make successfully.
1647 ($directory ne '' && ! option 'subdir-objects'))
1649 my $obj_sans_ext = substr ($object, 0,
1650 - length ($this_obj_ext));
1651 my $full_ansi = $full;
1652 if ($lang->ansi && option 'ansi2knr')
1654 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1655 $obj_sans_ext .= '$U';
1658 my @specifics = ($full_ansi, $obj_sans_ext,
1659 # Only use $this_obj_ext in the derived
1660 # source case because in the other case we
1661 # *don't* want $(OBJEXT) to appear here.
1662 ($derived_source ? $this_obj_ext : '.o'));
1664 # If we renamed the object then we want to use the
1665 # per-executable flag name. But if this is simply a
1666 # subdir build then we still want to use the AM_ flag
1670 unshift @specifics, $derived;
1671 $aggregate = $derived;
1675 unshift @specifics, 'AM';
1678 # Each item on this list is a reference to a list consisting
1679 # of four values followed by additional transform flags for
1680 # file_contents. The four values are the derived flag prefix
1681 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1682 # source file, the base name of the output file, and
1683 # the extension for the object file.
1684 push (@{$lang_specific_files{$lang->name}},
1685 [@specifics, %transform]);
1688 elsif ($extension eq $nonansi_obj)
1690 # This is probably the result of a direct suffix rule.
1691 # In this case we just accept the rewrite.
1692 $object = "$base$extension";
1697 # No error message here. Used to have one, but it was
1699 # FIXME: we could potentially do more processing here,
1700 # perhaps treating the new extension as though it were a
1701 # new source extension (as above). This would require
1702 # more restructuring than is appropriate right now.
1706 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1707 if (defined $object_map{$object}
1708 && $object_map{$object} ne $full);
1710 my $comp_val = (($object =~ /\.lo$/)
1711 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1712 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1713 if (defined $object_compilation_map{$comp_obj}
1714 && $object_compilation_map{$comp_obj} != 0
1715 # Only see the error once.
1716 && ($object_compilation_map{$comp_obj}
1717 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1718 && $object_compilation_map{$comp_obj} != $comp_val)
1720 err_am "object `$comp_obj' created both with libtool and without";
1722 $object_compilation_map{$comp_obj} |= $comp_val;
1726 # Let the language do some special magic if required.
1727 $lang->target_hook ($aggregate, $object, $full);
1730 if ($derived_source)
1732 prog_error ($lang->name . " has automatic dependency tracking")
1733 if $lang->autodep ne 'no';
1734 # Make sure this new source file is handled next. That will
1735 # make it appear to be at the right place in the list.
1736 unshift (@files, $object);
1737 # Distribute derived sources unless the source they are
1738 # derived from is not.
1739 &push_dist_common ($object)
1740 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1744 $linkers_used{$linker} = 1;
1746 push (@result, $object);
1748 if (! defined $object_map{$object})
1751 $object_map{$object} = $full;
1753 # If resulting object is in subdir, we need to make
1754 # sure the subdir exists at build time.
1755 if ($object =~ /\//)
1757 # FIXME: check that $DIRECTORY is somewhere in the
1760 # For Java, the way we're handling it right now, a
1761 # `..' component doesn't make sense.
1762 if ($lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1764 err_am "`$full' should not contain a `..' component";
1767 # Make sure object is removed by `make mostlyclean'.
1768 $compile_clean_files{$object} = MOSTLY_CLEAN;
1769 # If we have a libtool object then we also must remove
1771 if ($object =~ /\.lo$/)
1773 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1774 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1776 # Remove any libtool object in this directory.
1777 $libtool_clean_directories{$directory} = 1;
1780 push (@dep_list, require_build_directory ($directory));
1782 # If we're generating dependencies, we also want
1783 # to make sure that the appropriate subdir of the
1784 # .deps directory is created.
1786 require_build_directory ($directory . '/$(DEPDIR)'))
1787 unless option 'no-dependencies';
1790 &pretty_print_rule ($object . ':', "\t", @dep_list)
1791 if scalar @dep_list > 0;
1794 # Transform .o or $o file into .P file (for automatic
1796 if ($lang && $lang->autodep ne 'no')
1798 my $depfile = $object;
1799 $depfile =~ s/\.([^.]*)$/.P$1/;
1800 $depfile =~ s/\$\(OBJEXT\)$/o/;
1801 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1802 . basename ($depfile)} = 1;
1811 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1812 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1813 # ---------------------------------------------------------------------------
1814 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1817 # $VAR is the name of the _SOURCES variable
1818 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1819 # it will be generated and returned).
1820 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1821 # work done to determine the linker will be).
1822 # $ONE_FILE is the canonical (transformed) name of object to build
1823 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1824 # $TOPPARENT is the _SOURCES variable being processed.
1825 # $WHERE context into which this definition is done
1826 # %TRANSFORM extra arguments to pass to file_contents when producing
1829 # Result is a pair ($LINKER, $OBJVAR):
1830 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1831 sub define_objects_from_sources ($$$$$$$%)
1833 my ($var, $objvar, $nodefine, $one_file,
1834 $obj, $topparent, $where, %transform) = @_;
1836 my $needlinker = "";
1838 transform_variable_recursively
1839 ($var, $objvar, 'am__objects', $nodefine, $where,
1840 # The transform code to run on each filename.
1842 my ($subvar, $val, $cond, $full_cond) = @_;
1843 my @trans = handle_single_transform ($subvar, $topparent,
1844 $one_file, $obj, $val,
1846 $needlinker = "true" if @trans;
1854 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
1855 # -----------------------------------------------------------------------------
1856 # Handle SOURCE->OBJECT transform for one program or library.
1858 # canonical (transformed) name of target to build
1859 # actual target of object to build
1860 # object extension (i.e. either `.o' or `$o'.
1861 # location of the source variable
1862 # extra arguments to pass to file_contents when producing rules
1863 # Return result is name of linker variable that must be used.
1864 # Empty return means just use `LINK'.
1865 sub handle_source_transform ($$$$%)
1867 # one_file is canonical name. unxformed is given name. obj is
1869 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
1873 # No point in continuing if _OBJECTS is defined.
1874 return if reject_var ($one_file . '_OBJECTS',
1875 $one_file . '_OBJECTS should not be defined');
1880 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1881 'dist_EXTRA_', 'nodist_EXTRA_')
1883 my $varname = $prefix . $one_file . "_SOURCES";
1884 my $var = var $varname;
1887 # We are going to define _OBJECTS variables using the prefix.
1888 # Then we glom them all together. So we can't use the null
1889 # prefix here as we need it later.
1890 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
1892 # Keep track of which prefixes we saw.
1893 $used_pfx{$xpfx} = 1
1894 unless $prefix =~ /EXTRA_/;
1896 push @sources, "\$($varname)";
1897 push @dist_sources, shadow_unconditionally ($varname, $where)
1898 unless (option ('no-dist') || $prefix =~ /^nodist_/);
1901 define_objects_from_sources ($varname,
1902 $xpfx . $one_file . '_OBJECTS',
1903 $prefix =~ /EXTRA_/,
1904 $one_file, $obj, $varname, $where,
1909 $linker ||= &resolve_linker (%linkers_used);
1912 my @keys = sort keys %used_pfx;
1913 if (scalar @keys == 0)
1915 # The default source for libfoo.la is libfoo.c, but for
1916 # backward compatibility we first look at libfoo_la.c
1917 my $old_default_source = "$one_file.c";
1918 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
1919 if ($old_default_source ne $default_source
1920 && (rule $old_default_source
1921 || rule '$(srcdir)/' . $old_default_source
1922 || rule '${srcdir}/' . $old_default_source
1923 || -f $old_default_source))
1925 my $loc = $where->clone;
1927 msg ('obsolete', $loc,
1928 "the default source for `$unxformed' has been changed "
1929 . "to `$default_source'.\n(Using `$old_default_source' for "
1930 . "backward compatibility.)");
1931 $default_source = $old_default_source;
1933 # If a rule exists to build this source with a $(srcdir)
1934 # prefix, use that prefix in our variables too. This is for
1935 # the sake of BSD Make.
1936 if (rule '$(srcdir)/' . $default_source
1937 || rule '${srcdir}/' . $default_source)
1939 $default_source = '$(srcdir)/' . $default_source;
1942 &define_variable ($one_file . "_SOURCES", $default_source, $where);
1943 push (@sources, $default_source);
1944 push (@dist_sources, $default_source);
1948 handle_single_transform ($one_file . '_SOURCES',
1949 $one_file . '_SOURCES',
1951 $default_source, %transform);
1952 $linker ||= &resolve_linker (%linkers_used);
1953 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
1957 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
1958 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
1961 # If we want to use `LINK' we must make sure it is defined.
1971 # handle_lib_objects ($XNAME, $VAR)
1972 # ---------------------------------
1973 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
1974 # Also, generate _DEPENDENCIES variable if appropriate.
1976 # transformed name of object being built, or empty string if no object
1977 # name of _LDADD/_LIBADD-type variable to examine
1978 # Returns 1 if LIBOBJS seen, 0 otherwise.
1979 sub handle_lib_objects
1981 my ($xname, $varname) = @_;
1983 my $var = var ($varname);
1984 prog_error "handle_lib_objects: `$varname' undefined"
1986 prog_error "handle_lib_objects: unexpected variable name `$varname'"
1987 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
1988 my $prefix = $1 || 'AM_';
1990 my $seen_libobjs = 0;
1993 transform_variable_recursively
1994 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
1996 # Transformation function, run on each filename.
1998 my ($subvar, $val, $cond, $full_cond) = @_;
2002 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2003 if ($val !~ /^-[lL]/ &&
2004 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2005 # for Libtool libraries or programs. (Actually we are a bit
2006 # laxest here since this code also applies to non-libtool
2007 # libraries or programs, for which -dlopen and -dlopreopen
2008 # are pure non-sence. Diagnosting this doesn't seems very
2009 # important: the developer will quickly get complaints from
2011 $val !~ /^-dl(?:pre)?open$/ &&
2012 # Only get this error once.
2016 # FIXME: should display a stack of nested variables
2017 # as context when $var != $subvar.
2018 err_var ($var, "linker flags such as `$val' belong in "
2019 . "`${prefix}LDFLAGS");
2023 elsif ($val !~ /^\@.*\@$/)
2025 # Assume we have a file of some sort, and output it into the
2026 # dependency variable. Autoconf substitutions are not output;
2027 # rarely is a new dependency substituted into e.g. foo_LDADD
2028 # -- but bad things (e.g. -lX11) are routinely substituted.
2029 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2030 # and handled specially below.
2033 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2035 handle_LIBOBJS ($subvar, $cond, $1);
2039 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2041 handle_ALLOCA ($subvar, $cond, $1);
2050 return $seen_libobjs;
2053 sub handle_LIBOBJS ($$$)
2055 my ($var, $cond, $lt) = @_;
2057 my $myobjext = ($1 ? 'l' : '') . 'o';
2059 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2060 if ! keys %libsources;
2062 foreach my $iter (keys %libsources)
2064 if ($iter =~ /\.[cly]$/)
2066 &saw_extension ($&);
2067 &saw_extension ('.c');
2070 if ($iter =~ /\.h$/)
2072 require_file_with_macro ($cond, $var, FOREIGN, $iter);
2074 elsif ($iter ne 'alloca.c')
2076 my $rewrite = $iter;
2077 $rewrite =~ s/\.c$/.P$myobjext/;
2078 $dep_files{'$(DEPDIR)/' . $rewrite} = 1;
2079 $rewrite = "^" . quotemeta ($iter) . "\$";
2080 # Only require the file if it is not a built source.
2081 my $bs = var ('BUILT_SOURCES');
2082 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2084 require_file_with_macro ($cond, $var, FOREIGN, $iter);
2090 sub handle_ALLOCA ($$$)
2092 my ($var, $cond, $lt) = @_;
2093 my $myobjext = ($lt ? 'l' : '') . 'o';
2095 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2096 $dep_files{'$(DEPDIR)/alloca.P' . $myobjext} = 1;
2097 require_file_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2098 &saw_extension ('c');
2101 # Canonicalize the input parameter
2105 $string =~ tr/A-Za-z0-9_\@/_/c;
2109 # Canonicalize a name, and check to make sure the non-canonical name
2110 # is never used. Returns canonical name. Arguments are name and a
2111 # list of suffixes to check for.
2112 sub check_canonical_spelling
2114 my ($name, @suffixes) = @_;
2116 my $xname = &canonicalize ($name);
2117 if ($xname ne $name)
2119 foreach my $xt (@suffixes)
2121 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2131 # Set up the compile suite.
2132 sub handle_compile ()
2135 unless $get_object_extension_was_run;
2138 my $default_includes = '';
2139 if (! option 'nostdinc')
2141 $default_includes = ' -I. -I$(srcdir)';
2143 my $var = var 'CONFIG_HEADER';
2146 foreach my $hdr (split (' ', $var->variable_value))
2148 $default_includes .= ' -I' . dirname ($hdr);
2153 my (@mostly_rms, @dist_rms);
2154 foreach my $item (sort keys %compile_clean_files)
2156 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2158 push (@mostly_rms, "\t-rm -f $item");
2160 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2162 push (@dist_rms, "\t-rm -f $item");
2166 prog_error 'invalid entry in %compile_clean_files';
2170 my ($coms, $vars, $rules) =
2171 &file_contents_internal (1, "$libdir/am/compile.am",
2172 new Automake::Location,
2173 ('DEFAULT_INCLUDES' => $default_includes,
2174 'MOSTLYRMS' => join ("\n", @mostly_rms),
2175 'DISTRMS' => join ("\n", @dist_rms)));
2176 $output_vars .= $vars;
2177 $output_rules .= "$coms$rules";
2179 # Check for automatic de-ANSI-fication.
2180 if (option 'ansi2knr')
2182 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2183 my $ansi2knr_dir = '';
2185 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2186 TRUE, "ANSI2KNR", "U");
2188 # topdir is where ansi2knr should be.
2189 if ($ansi2knr_filename eq 'ansi2knr')
2191 # Only require ansi2knr files if they should appear in
2193 require_file ($ansi2knr_where, FOREIGN,
2194 'ansi2knr.c', 'ansi2knr.1');
2196 # ansi2knr needs to be built before subdirs, so unshift it.
2197 unshift (@all, '$(ANSI2KNR)');
2201 $ansi2knr_dir = dirname ($ansi2knr_filename);
2204 $output_rules .= &file_contents ('ansi2knr',
2205 new Automake::Location,
2206 'ANSI2KNR-DIR' => $ansi2knr_dir);
2213 # Handle libtool rules.
2216 return unless var ('LIBTOOL');
2218 # Libtool requires some files, but only at top level.
2219 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2220 if $relative_dir eq '.';
2223 foreach my $item (sort keys %libtool_clean_directories)
2225 my $dir = ($item eq '.') ? '' : "$item/";
2226 # .libs is for Unix, _libs for DOS.
2227 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2230 # Output the libtool compilation rules.
2231 $output_rules .= &file_contents ('libtool',
2232 new Automake::Location,
2233 LTRMS => join ("\n", @libtool_rms));
2236 # handle_programs ()
2237 # ------------------
2238 # Handle C programs.
2241 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2242 'bin', 'sbin', 'libexec', 'pkglib',
2244 return if ! @proglist;
2246 my $seen_global_libobjs =
2247 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2249 foreach my $pair (@proglist)
2251 my ($where, $one_file) = @$pair;
2253 my $seen_libobjs = 0;
2254 my $obj = &get_object_extension ($one_file);
2256 # Strip any $(EXEEXT) suffix the user might have added, or this
2257 # will confuse &handle_source_transform and &check_canonical_spelling.
2258 # We'll add $(EXEEXT) back later anyway.
2259 $one_file =~ s/\$\(EXEEXT\)$//;
2261 # Canonicalize names and check for misspellings.
2262 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2263 '_SOURCES', '_OBJECTS',
2266 $where->push_context ("while processing program `$one_file'");
2267 $where->set (INTERNAL->get);
2269 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2270 NONLIBTOOL => 1, LIBTOOL => 0);
2272 if (var ($xname . "_LDADD"))
2274 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2278 # User didn't define prog_LDADD override. So do it.
2279 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2281 # This does a bit too much work. But we need it to
2282 # generate _DEPENDENCIES when appropriate.
2285 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2289 reject_var ($xname . '_LIBADD',
2290 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2292 set_seen ($xname . '_DEPENDENCIES');
2293 set_seen ($xname . '_LDFLAGS');
2295 # Determine program to use for link.
2297 if (var ($xname . '_LINK'))
2299 $xlink = $xname . '_LINK';
2303 $xlink = $linker ? $linker : 'LINK';
2306 # If the resulting program lies into a subdirectory,
2307 # make sure this directory will exist.
2308 my $dirstamp = require_build_directory_maybe ($one_file);
2310 $output_rules .= &file_contents ('program',
2312 PROGRAM => $one_file,
2315 DIRSTAMP => $dirstamp,
2316 EXEEXT => '$(EXEEXT)');
2318 if ($seen_libobjs || $seen_global_libobjs)
2320 if (var ($xname . '_LDADD'))
2322 &check_libobjs_sources ($xname, $xname . '_LDADD');
2324 elsif (var ('LDADD'))
2326 &check_libobjs_sources ($xname, 'LDADD');
2333 # handle_libraries ()
2334 # -------------------
2336 sub handle_libraries
2338 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2339 'lib', 'pkglib', 'noinst', 'check');
2340 return if ! @liblist;
2342 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2347 my $var = rvar ($prefix[0] . '_LIBRARIES');
2348 $var->requires_variables ('library used', 'RANLIB');
2351 &define_variable ('AR', 'ar', INTERNAL);
2352 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2354 foreach my $pair (@liblist)
2356 my ($where, $onelib) = @$pair;
2358 my $seen_libobjs = 0;
2359 # Check that the library fits the standard naming convention.
2360 my $bn = basename ($onelib);
2361 if ($bn !~ /^lib.*\.a$/)
2363 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2364 my $suggestion = dirname ($onelib) . "/$bn";
2365 $suggestion =~ s|^\./||g;
2366 msg ('error-gnu/warn', $where,
2367 "`$onelib' is not a standard library name\n"
2368 . "did you mean `$suggestion'?")
2371 $where->push_context ("while processing library `$onelib'");
2372 $where->set (INTERNAL->get);
2374 my $obj = &get_object_extension ($onelib);
2376 # Canonicalize names and check for misspellings.
2377 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2378 '_OBJECTS', '_DEPENDENCIES',
2381 if (! var ($xlib . '_AR'))
2383 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2386 # Generate support for conditional object inclusion in
2388 if (var ($xlib . '_LIBADD'))
2390 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2397 &define_variable ($xlib . "_LIBADD", '', $where);
2400 reject_var ($xlib . '_LDADD',
2401 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2403 # Make sure we at look at this.
2404 set_seen ($xlib . '_DEPENDENCIES');
2406 &handle_source_transform ($xlib, $onelib, $obj, $where,
2407 NONLIBTOOL => 1, LIBTOOL => 0);
2409 # If the resulting library lies into a subdirectory,
2410 # make sure this directory will exist.
2411 my $dirstamp = require_build_directory_maybe ($onelib);
2413 $output_rules .= &file_contents ('library',
2417 DIRSTAMP => $dirstamp);
2421 if (var ($xlib . '_LIBADD'))
2423 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2430 # handle_ltlibraries ()
2431 # ---------------------
2432 # Handle shared libraries.
2433 sub handle_ltlibraries
2435 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2436 'noinst', 'lib', 'pkglib', 'check');
2437 return if ! @liblist;
2439 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2444 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2445 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2450 my %liblocations = (); # Location (in Makefile.am) of each library.
2452 foreach my $key (@prefix)
2454 # Get the installation directory of each library.
2455 (my $dir = $key) =~ s/^nobase_//;
2456 my $var = rvar ($key . '_LTLIBRARIES');
2458 # We reject libraries which are installed in several places
2459 # in the same condition, because we can only specify one
2461 $var->traverse_recursively
2464 my ($var, $val, $cond, $full_cond) = @_;
2465 my $hcond = $full_cond->human;
2466 my $where = $var->rdef ($cond)->location;
2467 # A library cannot be installed in different directory
2468 # in overlapping conditions.
2469 if (exists $instconds{$val})
2472 $instconds{$val}->ambiguous_p ($val, $full_cond);
2476 error ($where, $msg, partial => 1);
2478 my $dirtxt = "installed in `$dir'";
2479 $dirtxt = "built for `$dir'"
2480 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2482 $full_cond->true ? "" : " in condition $hcond";
2484 error ($where, "`$val' should be $dirtxt$dircond ...",
2487 my $hacond = $acond->human;
2488 my $adir = $instdirs{$val}{$acond};
2489 my $adirtxt = "installed in `$adir'";
2490 $adirtxt = "built for `$adir'"
2491 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2492 || $adir eq 'check');
2493 my $adircond = $acond->true ? "" : " in condition $hacond";
2495 my $onlyone = ($dir ne $adir) ?
2496 ("\nLibtool libraries can be built for only one "
2497 . "destination.") : "";
2499 error ($liblocations{$val}{$acond},
2500 "... and should also be $adirtxt$adircond.$onlyone");
2506 $instconds{$val} = new Automake::DisjConditions;
2508 $instdirs{$val}{$full_cond} = $dir;
2509 $liblocations{$val}{$full_cond} = $where;
2510 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2516 skip_ac_subst => 1);
2519 foreach my $pair (@liblist)
2521 my ($where, $onelib) = @$pair;
2523 my $seen_libobjs = 0;
2524 my $obj = &get_object_extension ($onelib);
2526 # Canonicalize names and check for misspellings.
2527 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2528 '_SOURCES', '_OBJECTS',
2531 # Check that the library fits the standard naming convention.
2532 my $libname_rx = '^lib.*\.la';
2533 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2534 my $ldvar2 = var ('LDFLAGS');
2535 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2536 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2538 # Relax name checking for libtool modules.
2539 $libname_rx = '\.la';
2542 my $bn = basename ($onelib);
2543 if ($bn !~ /$libname_rx$/)
2545 my $type = 'library';
2546 if ($libname_rx eq '\.la')
2548 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2553 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2555 my $suggestion = dirname ($onelib) . "/$bn";
2556 $suggestion =~ s|^\./||g;
2557 msg ('error-gnu/warn', $where,
2558 "`$onelib' is not a standard libtool $type name\n"
2559 . "did you mean `$suggestion'?")
2562 $where->push_context ("while processing Libtool library `$onelib'");
2563 $where->set (INTERNAL->get);
2565 # Make sure we look at these.
2566 set_seen ($xlib . '_LDFLAGS');
2567 set_seen ($xlib . '_DEPENDENCIES');
2569 # Generate support for conditional object inclusion in
2571 if (var ($xlib . '_LIBADD'))
2573 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2580 &define_variable ($xlib . "_LIBADD", '', $where);
2583 reject_var ("${xlib}_LDADD",
2584 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2587 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2588 NONLIBTOOL => 0, LIBTOOL => 1);
2590 # Determine program to use for link.
2592 if (var ($xlib . '_LINK'))
2594 $xlink = $xlib . '_LINK';
2598 $xlink = $linker ? $linker : 'LINK';
2601 my $rpathvar = "am_${xlib}_rpath";
2602 my $rpath = "\$($rpathvar)";
2603 foreach my $rcond ($instconds{$onelib}->conds)
2606 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2607 || $instdirs{$onelib}{$rcond} eq 'noinst'
2608 || $instdirs{$onelib}{$rcond} eq 'check')
2610 # It's an EXTRA_ library, so we can't specify -rpath,
2611 # because we don't know where the library will end up.
2612 # The user probably knows, but generally speaking automake
2613 # doesn't -- and in fact configure could decide
2614 # dynamically between two different locations.
2619 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2623 # If $rcond is true there is only one condition and
2624 # there is no point defining an helper variable.
2629 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2633 # If the resulting library lies into a subdirectory,
2634 # make sure this directory will exist.
2635 my $dirstamp = require_build_directory_maybe ($onelib);
2637 # Remember to cleanup .libs/ in this directory.
2638 my $dirname = dirname $onelib;
2639 $libtool_clean_directories{$dirname} = 1;
2641 $output_rules .= &file_contents ('ltlibrary',
2643 LTLIBRARY => $onelib,
2644 XLTLIBRARY => $xlib,
2647 DIRSTAMP => $dirstamp);
2650 if (var ($xlib . '_LIBADD'))
2652 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2658 # See if any _SOURCES variable were misspelled.
2661 # It is ok if the user sets this particular variable.
2662 set_seen 'AM_LDFLAGS';
2664 foreach my $var (variables)
2666 my $varname = $var->name;
2667 # A configure variable is always legitimate.
2668 next if exists $configure_vars{$varname};
2671 foreach my $primary ('_SOURCES', '_LIBADD', '_LDADD', '_LDFLAGS',
2674 if ($varname =~ /^(.*)$primary$/)
2682 for my $cond ($var->conditions->conds)
2684 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2685 . " program or\nlibrary has `$check' as canonic name"
2686 . " (possible typo)")
2687 unless $var->rdef ($cond)->seen;
2696 # NOTE we no longer automatically clean SCRIPTS, because it is
2697 # useful to sometimes distribute scripts verbatim. This happens
2698 # e.g. in Automake itself.
2699 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2700 'bin', 'sbin', 'libexec', 'pkgdata',
2707 ## ------------------------ ##
2708 ## Handling Texinfo files. ##
2709 ## ------------------------ ##
2711 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2712 # &scan_texinfo_file ($FILENAME)
2713 # ------------------------------
2714 # $OUTFILE - name of the info file produced by $FILENAME.
2715 # $VFILE - name of the version.texi file used (undef if none).
2716 # @CLEAN_FILES - list of byproducts (indexes etc.)
2717 sub scan_texinfo_file ($)
2719 my ($filename) = @_;
2721 # Some of the following extensions are always created, no matter
2722 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2723 # are only created when they are used. We used to scan $FILENAME
2724 # for their use, but that is not enough: they could be used in
2725 # included files. We can't scan included files because we don't
2726 # know the include path. Therefore we always erase these files, no
2727 # matter whether they are used or not.
2729 # (tmp is only created if an @macro is used and a certain e-TeX
2730 # feature is not available.)
2731 my %clean_suffixes =
2732 map { $_ => 1 } (qw(aux log toc tmp
2738 pg pgs)); # grep 'new.*index' texinfo.tex
2740 my $texi = new Automake::XFile "< $filename";
2741 verb "reading $filename";
2743 my ($outfile, $vfile);
2744 while ($_ = $texi->getline)
2746 if (/^\@setfilename +(\S+)/)
2748 # Honor only the first @setfilename. (It's possible to have
2749 # more occurrences later if the manual shows examples of how
2750 # to use @setfilename...)
2754 if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
2756 error ("$filename:$.",
2757 "output `$outfile' has unrecognized extension");
2761 # A "version.texi" file is actually any file whose name matches
2763 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2768 # Try to find new or unused indexes.
2770 # Creating a new category of index.
2771 elsif (/^\@def(code)?index (\w+)/)
2773 $clean_suffixes{$2} = 1;
2774 $clean_suffixes{"$2s"} = 1;
2777 # Merging an index into an another.
2778 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2780 delete $clean_suffixes{"$2s"};
2781 $clean_suffixes{"$3s"} = 1;
2788 err_am "`$filename' missing \@setfilename";
2792 my $infobase = basename ($filename);
2793 $infobase =~ s/\.te?xi(nfo)?$//;
2794 return ($outfile, $vfile,
2795 map { "$infobase.$_" } (sort keys %clean_suffixes));
2799 # ($DIRSTAMP, @CLEAN_FILES)
2800 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2801 # ------------------------------------------------------------------
2802 # SOURCE - the source Texinfo file
2803 # DEST - the destination Info file
2804 # INSRC - wether DEST should be built in the source tree
2805 # DEPENDENCIES - known dependencies
2806 sub output_texinfo_build_rules ($$$@)
2808 my ($source, $dest, $insrc, @deps) = @_;
2810 # Split `a.texi' into `a' and `.texi'.
2811 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2812 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2817 # We can output two kinds of rules: the "generic" rules use Make
2818 # suffix rules and are appropriate when $source and $dest do not lie
2819 # in a sub-directory; the "specific" rules are needed in the other
2822 # The former are output only once (this is not really apparent here,
2823 # but just remember that some logic deeper in Automake will not
2824 # output the same rule twice); while the later need to be output for
2825 # each Texinfo source.
2828 my $sdir = dirname $source;
2829 if ($sdir eq '.' && dirname ($dest) eq '.')
2832 $makeinfoflags = '-I $(srcdir)';
2837 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
2840 # A directory can contain two kinds of info files: some built in the
2841 # source tree, and some built in the build tree. The rules are
2842 # different in each case. However we cannot output two different
2843 # set of generic rules. Because in-source builds are more usual, we
2844 # use generic rules in this case and fall back to "specific" rules
2845 # for build-dir builds. (It should not be a problem to invert this
2847 $generic = 0 unless $insrc;
2849 # We cannot use a suffix rule to build info files with an empty
2850 # extension. Otherwise we would output a single suffix inference
2851 # rule, with separate dependencies, as in
2855 # foo.info: foo.texi
2857 # which confuse Solaris make. (See the Autoconf manual for
2858 # details.) Therefore we use a specific rule in this case. This
2859 # applies to info files only (dvi and pdf files always have an
2861 my $generic_info = ($generic && $dsfx) ? 1 : 0;
2863 # If the resulting file lie into a subdirectory,
2864 # make sure this directory will exist.
2865 my $dirstamp = require_build_directory_maybe ($dest);
2867 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
2869 $output_rules .= file_contents ('texibuild',
2870 new Automake::Location,
2872 DEST_PREFIX => $dpfx,
2873 DEST_INFO_PREFIX => $dipfx,
2874 DEST_SUFFIX => $dsfx,
2875 DIRSTAMP => $dirstamp,
2876 GENERIC => $generic,
2877 GENERIC_INFO => $generic_info,
2879 MAKEINFOFLAGS => $makeinfoflags,
2882 SOURCE_INFO => ($generic_info
2884 SOURCE_REAL => $source,
2885 SOURCE_SUFFIX => $ssfx,
2887 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
2892 # handle_texinfo_helper ($info_texinfos)
2893 # --------------------------------------
2894 # Handle all Texinfo source; helper for handle_texinfo.
2895 sub handle_texinfo_helper ($)
2897 my ($info_texinfos) = @_;
2898 my (@infobase, @info_deps_list, @texi_deps);
2903 # Build a regex matching user-cleaned files.
2904 my $d = var 'DISTCLEANFILES';
2905 my $c = var 'CLEANFILES';
2907 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
2908 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
2909 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
2910 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
2913 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
2915 my $infobase = $texi;
2916 $infobase =~ s/\.(txi|texinfo|texi)$//;
2918 if ($infobase eq $texi)
2920 # FIXME: report line number.
2921 err_am "texinfo file `$texi' has unrecognized extension";
2925 push @infobase, $infobase;
2927 # If 'version.texi' is referenced by input file, then include
2928 # automatic versioning capability.
2929 my ($out_file, $vtexi, @clean_files) =
2930 scan_texinfo_file ("$relative_dir/$texi")
2932 push (@texi_cleans, @clean_files);
2934 # If the Texinfo source is in a subdirectory, create the
2935 # resulting info in this subdirectory. If it is in the current
2936 # directory, try hard to not prefix "./" because it breaks the
2938 my $outdir = dirname ($texi) . '/';
2939 $outdir = "" if $outdir eq './';
2940 $out_file = $outdir . $out_file;
2942 # Until Automake 1.6.3, .info files were built in the
2943 # source tree. This was an obstacle to the support of
2944 # non-distributed .info files, and non-distributed .texi
2947 # * Non-distributed .texi files is important in some packages
2948 # where .texi files are built at make time, probably using
2949 # other binaries built in the package itself, maybe using
2950 # tools or information found on the build host. Because
2951 # these files are not distributed they are always rebuilt
2952 # at make time; they should therefore not lie in the source
2953 # directory. One plan was to support this using
2954 # nodist_info_TEXINFOS or something similar. (Doing this
2955 # requires some sanity checks. For instance Automake should
2957 # dist_info_TEXINFO = foo.texi
2958 # nodist_foo_TEXINFO = included.texi
2959 # because a distributed file should never depend on a
2960 # non-distributed file.)
2962 # * If .texi files are not distributed, then .info files should
2963 # not be distributed either. There are also cases where one
2964 # want to distribute .texi files, but do not want to
2965 # distribute the .info files. For instance the Texinfo package
2966 # distributes the tool used to build these files; it would
2967 # be a waste of space to distribute them. It's not clear
2968 # which syntax we should use to indicate that .info files should
2969 # not be distributed. Akim Demaille suggested that eventually
2970 # we switch to a new syntax:
2971 # | Maybe we should take some inspiration from what's already
2972 # | done in the rest of Automake. Maybe there is too much
2973 # | syntactic sugar here, and you want
2974 # | nodist_INFO = bar.info
2975 # | dist_bar_info_SOURCES = bar.texi
2976 # | bar_texi_DEPENDENCIES = foo.texi
2977 # | with a bit of magic to have bar.info represent the whole
2978 # | bar*info set. That's a lot more verbose that the current
2979 # | situation, but it is # not new, hence the user has less
2982 # | But there is still too much room for meaningless specs:
2983 # | nodist_INFO = bar.info
2984 # | dist_bar_info_SOURCES = bar.texi
2985 # | dist_PS = bar.ps something-written-by-hand.ps
2986 # | nodist_bar_ps_SOURCES = bar.texi
2987 # | bar_texi_DEPENDENCIES = foo.texi
2988 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
2990 # Back to the point, it should be clear that in order to support
2991 # non-distributed .info files, we need to build them in the
2992 # build tree, not in the source tree (non-distributed .texi
2993 # files are less of a problem, because we do not output build
2994 # rules for them). In Automake 1.7 .info build rules have been
2995 # largely cleaned up so that .info files get always build in the
2996 # build tree, even when distributed. The idea was that
2997 # (1) if during a VPATH build the .info file was found to be
2998 # absent or out-of-date (in the source tree or in the
2999 # build tree), Make would rebuild it in the build tree.
3000 # If an up-to-date source-tree of the .info file existed,
3001 # make would not rebuild it in the build tree.
3002 # (2) having two copies of .info files, one in the source tree
3003 # and one (newer) in the build tree is not a problem
3004 # because `make dist' always pick files in the build tree
3006 # However it turned out the be a bad idea for several reasons:
3007 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3008 # like GNU Make on point (1) above. These implementations
3009 # of Make would always rebuild .info files in the build
3010 # tree, even if such files were up to date in the source
3011 # tree. Consequently, it was impossible to perform a VPATH
3012 # build of a package containing Texinfo files using these
3013 # Make implementations.
3014 # (Refer to the Autoconf Manual, section "Limitation of
3015 # Make", paragraph "VPATH", item "target lookup", for
3016 # an account of the differences between these
3018 # * The GNU Coding Standards require these files to be built
3019 # in the source-tree (when they are distributed, that is).
3020 # * Keeping a fresher copy of distributed files in the
3021 # build tree can be annoying during development because
3022 # - if the files is kept under CVS, you really want it
3023 # to be updated in the source tree
3024 # - it is confusing that `make distclean' does not erase
3025 # all files in the build tree.
3027 # Consequently, starting with Automake 1.8, .info files are
3028 # built in the source tree again. Because we still plan to
3029 # support non-distributed .info files at some point, we
3030 # have a single variable ($INSRC) that controls whether
3031 # the current .info file must be built in the source tree
3032 # or in the build tree. Actually this variable is switched
3033 # off for .info files that appear to be cleaned; this is
3034 # for backward compatibility with package such as Texinfo,
3035 # which do things like
3036 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3037 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3038 # # Do not create info files for distribution.
3040 # in order not to distribute .info files.
3041 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3043 my $soutdir = '$(srcdir)/' . $outdir;
3044 $outdir = $soutdir if $insrc;
3046 # If user specified file_TEXINFOS, then use that as explicit
3049 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3051 my $canonical = canonicalize ($infobase);
3052 if (var ($canonical . "_TEXINFOS"))
3054 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3055 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3058 my ($dirstamp, @cfiles) =
3059 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3060 push (@texi_cleans, @cfiles);
3062 push (@info_deps_list, $out_file);
3064 # If a vers*.texi file is needed, emit the rule.
3067 err_am ("`$vtexi', included in `$texi', "
3068 . "also included in `$versions{$vtexi}'")
3069 if defined $versions{$vtexi};
3070 $versions{$vtexi} = $texi;
3072 # We number the stamp-vti files. This is doable since the
3073 # actual names don't matter much. We only number starting
3074 # with the second one, so that the common case looks nice.
3075 my $vti = ($done ? $done : 'vti');
3078 # This is ugly, but it is our historical practice.
3079 if ($config_aux_dir_set_in_configure_ac)
3081 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3086 require_file_with_macro (TRUE, 'info_TEXINFOS',
3087 FOREIGN, 'mdate-sh');
3091 if ($config_aux_dir_set_in_configure_ac)
3093 $conf_dir = "$am_config_aux_dir/";
3097 $conf_dir = '$(srcdir)/';
3099 $output_rules .= file_contents ('texi-vers',
3100 new Automake::Location,
3103 STAMPVTI => "${soutdir}stamp-$vti",
3104 VTEXI => "$soutdir$vtexi",
3106 DIRSTAMP => $dirstamp);
3110 # Handle location of texinfo.tex.
3111 my $need_texi_file = 0;
3113 if (var ('TEXINFO_TEX'))
3115 # The user defined TEXINFO_TEX so assume he knows what he is
3117 $texinfodir = ('$(srcdir)/'
3118 . dirname (variable_value ('TEXINFO_TEX')));
3120 elsif (option 'cygnus')
3122 $texinfodir = '$(top_srcdir)/../texinfo';
3123 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3125 elsif ($config_aux_dir_set_in_configure_ac)
3127 $texinfodir = $am_config_aux_dir;
3128 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3129 $need_texi_file = 2; # so that we require_conf_file later
3133 $texinfodir = '$(srcdir)';
3134 $need_texi_file = 1;
3136 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3138 push (@dist_targets, 'dist-info');
3140 if (! option 'no-installinfo')
3142 # Make sure documentation is made and installed first. Use
3143 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3144 # get run twice during "make all".
3145 unshift (@all, '$(INFO_DEPS)');
3148 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3149 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3150 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3151 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3153 # This next isn't strictly needed now -- the places that look here
3154 # could easily be changed to look in info_TEXINFOS. But this is
3155 # probably better, in case noinst_TEXINFOS is ever supported.
3156 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3158 # Do some error checking. Note that this file is not required
3159 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3161 if ($need_texi_file && ! option 'no-texinfo.tex')
3163 if ($need_texi_file > 1)
3165 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3170 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3175 return makefile_wrap ("", "\t ", @texi_cleans);
3181 # Handle all Texinfo source.
3182 sub handle_texinfo ()
3184 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3185 # FIXME: I think this is an obsolete future feature name.
3186 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3188 my $info_texinfos = var ('info_TEXINFOS');
3192 $texiclean = handle_texinfo_helper ($info_texinfos);
3194 $output_rules .= file_contents ('texinfos',
3195 new Automake::Location,
3196 TEXICLEAN => $texiclean,
3197 'LOCAL-TEXIS' => !!$info_texinfos);
3201 # Handle any man pages.
3202 sub handle_man_pages
3204 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3206 # Find all the sections in use. We do this by first looking for
3207 # "standard" sections, and then looking for any additional
3208 # sections used in man_MANS.
3209 my (%sections, %vlist);
3210 # We handle nodist_ for uniformity. man pages aren't distributed
3211 # by default so it isn't actually very important.
3212 foreach my $pfx ('', 'dist_', 'nodist_')
3214 # Add more sections as needed.
3215 foreach my $section ('0'..'9', 'n', 'l')
3217 my $varname = $pfx . 'man' . $section . '_MANS';
3220 $sections{$section} = 1;
3221 $varname = '$(' . $varname . ')';
3222 $vlist{$varname} = 1;
3224 &push_dist_common ($varname)
3229 my $varname = $pfx . 'man_MANS';
3230 my $var = var ($varname);
3233 foreach ($var->value_as_list_recursive)
3235 # A page like `foo.1c' goes into man1dir.
3236 if (/\.([0-9a-z])([a-z]*)$/)
3242 $varname = '$(' . $varname . ')';
3243 $vlist{$varname} = 1;
3244 &push_dist_common ($varname)
3249 return unless %sections;
3251 # Now for each section, generate an install and uninstall rule.
3252 # Sort sections so output is deterministic.
3253 foreach my $section (sort keys %sections)
3255 $output_rules .= &file_contents ('mans',
3256 new Automake::Location,
3257 SECTION => $section);
3260 my @mans = sort keys %vlist;
3261 $output_vars .= file_contents ('mans-vars',
3262 new Automake::Location,
3265 push (@all, '$(MANS)')
3266 unless option 'no-installman';
3269 # Handle DATA variables.
3272 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3273 'data', 'sysconf', 'sharedstate', 'localstate',
3274 'pkgdata', 'lisp', 'noinst', 'check');
3282 if (var ('SUBDIRS'))
3284 $output_rules .= ("tags-recursive:\n"
3285 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3286 # Never fail here if a subdir fails; it
3288 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3289 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3291 push (@tag_deps, 'tags-recursive');
3292 &depend ('.PHONY', 'tags-recursive');
3294 $output_rules .= ("ctags-recursive:\n"
3295 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3296 # Never fail here if a subdir fails; it
3298 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3299 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3301 push (@ctag_deps, 'ctags-recursive');
3302 &depend ('.PHONY', 'ctags-recursive');
3305 if (&saw_sources_p (1)
3306 || var ('ETAGS_ARGS')
3310 foreach my $spec (@config_headers)
3312 my ($out, @ins) = split_config_file_spec ($spec);
3313 foreach my $in (@ins)
3315 # If the config header source is in this directory,
3317 push @config, basename ($in)
3318 if $relative_dir eq dirname ($in);
3321 $output_rules .= &file_contents ('tags',
3322 new Automake::Location,
3323 CONFIG => "@config",
3324 TAGSDIRS => "@tag_deps",
3325 CTAGSDIRS => "@ctag_deps");
3327 set_seen 'TAGS_DEPENDENCIES';
3329 elsif (reject_var ('TAGS_DEPENDENCIES',
3330 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3331 . "without\nsources or `ETAGS_ARGS'"))
3336 # Every Makefile must define some sort of TAGS rule.
3337 # Otherwise, it would be possible for a top-level "make TAGS"
3338 # to fail because some subdirectory failed.
3339 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3341 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3345 # Handle multilib support.
3348 if ($seen_multilib && $relative_dir eq '.')
3350 $output_rules .= &file_contents ('multilib', new Automake::Location);
3351 push (@all, 'all-multi');
3357 # &for_dist_common ($A, $B)
3358 # -------------------------
3359 # Subroutine for &handle_dist: sort files to dist.
3361 # We put README first because it then becomes easier to make a
3362 # Usenet-compliant shar file (in these, README must be first).
3364 # FIXME: do more ordering of files here.
3379 # Handle 'dist' target.
3382 # Substutions for distdit.am
3385 # Define DIST_SUBDIRS. This must always be done, regardless of the
3386 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3387 my $subdirs = var ('SUBDIRS');
3390 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3391 # to all possible directories, and use it. If DIST_SUBDIRS is
3392 # defined, just use it.
3393 my $dist_subdir_name;
3394 # Note that we check DIST_SUBDIRS first on purpose, so that
3395 # we don't call has_conditional_contents for now reason.
3396 # (In the past one project used so many conditional subdirectories
3397 # that calling has_conditional_contents on SUBDIRS caused
3398 # automake to grow to 150Mb -- this should not happen with
3399 # the current implementation of has_conditional_contents,
3400 # but it's more efficient to avoid the call anyway.)
3401 if (var ('DIST_SUBDIRS'))
3403 $dist_subdir_name = 'DIST_SUBDIRS';
3405 elsif ($subdirs->has_conditional_contents)
3407 $dist_subdir_name = 'DIST_SUBDIRS';
3408 define_pretty_variable
3409 ('DIST_SUBDIRS', TRUE, INTERNAL,
3410 uniq ($subdirs->value_as_list_recursive));
3414 $dist_subdir_name = 'SUBDIRS';
3415 # We always define this because that is what `distclean'
3417 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3421 $transform{'DIST_SUBDIR_NAME'} = $dist_subdir_name;
3424 # The remaining definitions are only required when a dist target is used.
3425 return if option 'no-dist';
3427 # At least one of the archive formats must be enabled.
3428 if ($relative_dir eq '.')
3430 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3431 $archive_defined ||=
3432 grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
3433 error (option 'no-dist-gzip',
3434 "no-dist-gzip specified but no dist-* specified, "
3435 . "at least one archive format must be enabled")
3436 unless $archive_defined;
3439 # Look for common files that should be included in distribution.
3440 # If the aux dir is set, and it does not have a Makefile.am, then
3441 # we check for these files there as well.
3443 if ($relative_dir eq '.'
3444 && $config_aux_dir_set_in_configure_ac)
3446 if (! &is_make_dir ($config_aux_dir))
3451 foreach my $cfile (@common_files)
3453 if (-f ($relative_dir . "/" . $cfile)
3454 # The file might be absent, but if it can be built it's ok.
3457 &push_dist_common ($cfile);
3460 # Don't use `elsif' here because a file might meaningfully
3461 # appear in both directories.
3462 if ($check_aux && -f "$config_aux_dir/$cfile")
3464 &push_dist_common ("$config_aux_dir/$cfile")
3468 # We might copy elements from $configure_dist_common to
3469 # %dist_common if we think we need to. If the file appears in our
3470 # directory, we would have discovered it already, so we don't
3471 # check that. But if the file is in a subdir without a Makefile,
3472 # we want to distribute it here if we are doing `.'. Ugly!
3473 if ($relative_dir eq '.')
3475 foreach my $file (split (' ' , $configure_dist_common))
3477 push_dist_common ($file)
3478 unless is_make_dir (dirname ($file));
3482 # Files to distributed. Don't use ->value_as_list_recursive
3483 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3484 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3485 @dist_common = uniq (sort for_dist_common (@dist_common));
3486 variable_delete 'DIST_COMMON';
3487 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3489 # Now that we've processed DIST_COMMON, disallow further attempts
3491 $handle_dist_run = 1;
3493 # Scan EXTRA_DIST to see if we need to distribute anything from a
3494 # subdir. If so, add it to the list. I didn't want to do this
3495 # originally, but there were so many requests that I finally
3497 my $extra_dist = var ('EXTRA_DIST');
3500 # FIXME: This should be fixed to work with conditions. That
3501 # will require only making the entries in %dist_dirs under the
3502 # appropriate condition. This is meaningful if the nature of
3503 # the distribution should depend upon the configure options
3505 foreach ($extra_dist->value_as_list_recursive (skip_ac_subst => 1))
3507 next unless s,/+[^/]+$,,;
3513 # We have to check DIST_COMMON for extra directories in case the
3514 # user put a source used in AC_OUTPUT into a subdir.
3515 my $topsrcdir = backname ($relative_dir);
3516 foreach (rvar ('DIST_COMMON')->value_as_list_recursive (skip_ac_subst => 1))
3518 s/\$\(top_srcdir\)/$topsrcdir/;
3520 # Strip any leading `./'.
3522 next unless s,/+[^/]+$,,;
3527 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3528 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3530 # Prepend $(distdir) to each directory given.
3531 my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
3532 $transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
3534 # If the target `dist-hook' exists, make sure it is run. This
3535 # allows users to do random weird things to the distribution
3536 # before it is packaged up.
3537 push (@dist_targets, 'dist-hook')
3538 if rule 'dist-hook';
3539 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3541 my $flm = option ('filename-length-max');
3542 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3544 $output_rules .= &file_contents ('distdir',
3545 new Automake::Location,
3547 FILENAME_FILTER => $filename_filter);
3551 # check_directory ($NAME, $WHERE)
3552 # -------------------------------
3553 # Ensure $NAME is a directory, and that it uses sane name.
3554 # Use $WHERE as a location in the diagnostic, if any.
3555 sub check_directory ($$)
3557 my ($dir, $where) = @_;
3559 error $where, "required directory $relative_dir/$dir does not exist"
3560 unless -d "$relative_dir/$dir";
3562 # If an `obj/' directory exists, BSD make will enter it before
3563 # reading `Makefile'. Hence the `Makefile' in the current directory
3569 # % cat obj/Makefile
3575 # % pmake # BSD make
3578 msg ('portability', $where,
3579 "naming a subdirectory `obj' causes troubles with BSD make")
3582 # `aux' is probably the most important of the following forbidden name,
3583 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3584 msg ('portability', $where,
3585 "name `$dir' is reserved on W32 and DOS platforms")
3586 if grep (/^$dir$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3589 # check_directories_in_var ($VARIABLE)
3590 # ------------------------------------
3591 # Recursively check all items in variables $VARIABLE as directories
3592 sub check_directories_in_var ($)
3595 $var->traverse_recursively
3598 my ($var, $val, $cond, $full_cond) = @_;
3599 check_directory ($val, $var->rdef ($cond)->location);
3603 skip_ac_subst => 1);
3606 # &handle_subdirs ()
3607 # ------------------
3608 # Handle subdirectories.
3609 sub handle_subdirs ()
3611 my $subdirs = var ('SUBDIRS');
3615 check_directories_in_var $subdirs;
3617 my $dsubdirs = var ('DIST_SUBDIRS');
3618 check_directories_in_var $dsubdirs
3621 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3622 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3626 # ($REGEN, @DEPENDENCIES)
3629 # If aclocal.m4 creation is automated, return the list of its dependencies.
3630 sub scan_aclocal_m4 ()
3632 my $regen_aclocal = 0;
3634 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3635 set_seen 'CONFIGURE_DEPENDENCIES';
3637 if (-f 'aclocal.m4')
3639 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3641 my $aclocal = new Automake::XFile "< aclocal.m4";
3642 my $line = $aclocal->getline;
3643 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3648 if (set_seen ('ACLOCAL_M4_SOURCES'))
3650 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3651 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3652 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3653 . "It should be safe to simply remove it.");
3656 # Note that it might be possible that aclocal.m4 doesn't exist but
3657 # should be auto-generated. This case probably isn't very
3660 return ($regen_aclocal, @ac_deps);
3665 # &prepend_srcdir (@INPUTS)
3666 # -------------------------
3667 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3668 # if an input file has a directory part the same as the current
3669 # directory, then the directory part is simply replaced by $(srcdir).
3670 # But if the directory part is different, then $(top_srcdir) is
3672 sub prepend_srcdir (@)
3677 foreach my $single (@inputs)
3679 if (dirname ($single) eq $relative_dir)
3681 push (@newinputs, '$(srcdir)/' . basename ($single));
3685 push (@newinputs, '$(top_srcdir)/' . $single);
3692 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3693 # ---------------------------------------------------
3694 # Compute a list of dependencies appropriate for the rebuild
3696 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3697 # Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
3698 sub rewrite_inputs_into_dependencies ($@)
3700 my ($file, @inputs) = @_;
3705 if (exists $ac_config_files_location{$i})
3707 my $di = dirname $i;
3708 if ($di eq $relative_dir)
3712 # In the top-level Makefile we do not use $(top_builddir), because
3713 # we are already there, and since the targets are built without
3714 # a $(top_builddir), it helps BSD Make to match them with
3716 elsif ($relative_dir ne '.')
3718 $i = '$(top_builddir)/' . $i;
3723 msg ('error', $ac_config_files_location{$file},
3724 "required file `$i' not found")
3725 unless exists $output_files{$i} || -f $i;
3726 ($i) = prepend_srcdir ($i);
3727 push_dist_common ($i);
3736 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3737 # ------------------------------------------------------------------
3738 # Handle remaking and configure stuff.
3739 # We need the name of the input file, to do proper remaking rules.
3740 sub handle_configure ($$$@)
3742 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
3744 prog_error 'empty @inputs'
3747 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
3749 my $rel_makefile = basename $makefile;
3751 my $colon_infile = ':' . join (':', @inputs);
3752 $colon_infile = '' if $colon_infile eq ":$makefile.in";
3753 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
3754 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
3755 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
3756 @configure_deps, @aclocal_m4_deps,
3757 '$(top_srcdir)/' . $configure_ac);
3758 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
3759 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
3760 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
3763 $output_rules .= file_contents
3765 new Automake::Location,
3766 MAKEFILE => $rel_makefile,
3767 'MAKEFILE-DEPS' => "@rewritten",
3768 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
3769 'MAKEFILE-IN' => $rel_makefile_in,
3770 'MAKEFILE-IN-DEPS' => "@include_stack",
3771 'MAKEFILE-AM' => $rel_makefile_am,
3772 STRICTNESS => global_option 'cygnus'
3773 ? 'cygnus' : $strictness_name,
3774 'USE-DEPS' => global_option 'no-dependencies'
3775 ? ' --ignore-deps' : '',
3776 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
3777 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
3779 if ($relative_dir eq '.')
3781 &push_dist_common ('acconfig.h')
3785 # If we have a configure header, require it.
3787 my @distclean_config;
3788 foreach my $spec (@config_headers)
3791 # $CONFIG_H_PATH: config.h from top level.
3792 my ($config_h_path, @ins) = split_config_file_spec ($spec);
3793 my $config_h_dir = dirname ($config_h_path);
3795 # If the header is in the current directory we want to build
3796 # the header here. Otherwise, if we're at the topmost
3797 # directory and the header's directory doesn't have a
3798 # Makefile, then we also want to build the header.
3799 if ($relative_dir eq $config_h_dir
3800 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
3802 my ($cn_sans_dir, $stamp_dir);
3803 if ($relative_dir eq $config_h_dir)
3805 $cn_sans_dir = basename ($config_h_path);
3810 $cn_sans_dir = $config_h_path;
3811 if ($config_h_dir eq '.')
3817 $stamp_dir = $config_h_dir . '/';
3821 # This will also distribute all inputs.
3822 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
3824 # Header defined and in this directory.
3826 if (-f $config_h_path . '.top')
3828 push (@files, "$cn_sans_dir.top");
3830 if (-f $config_h_path . '.bot')
3832 push (@files, "$cn_sans_dir.bot");
3835 push_dist_common (@files);
3837 # For now, acconfig.h can only appear in the top srcdir.
3838 if (-f 'acconfig.h')
3840 push (@files, '$(top_srcdir)/acconfig.h');
3843 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
3845 file_contents ('remake-hdr',
3846 new Automake::Location,
3848 CONFIG_H => $cn_sans_dir,
3849 CONFIG_HIN => $ins[0],
3850 CONFIG_H_DEPS => "@ins",
3851 CONFIG_H_PATH => $config_h_path,
3854 push @distclean_config, $cn_sans_dir, $stamp;
3858 $output_rules .= file_contents ('clean-hdr',
3859 new Automake::Location,
3860 FILES => "@distclean_config")
3861 if @distclean_config;
3863 # Distribute and define mkinstalldirs only if it is already present
3864 # in the package, for backward compatibility (some people my still
3865 # use $(mkinstalldirs)).
3866 my $mkidpath = "$config_aux_dir/mkinstalldirs";
3869 # Use require_file so that any existingscript gets updated
3870 # by --force-missing.
3871 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
3872 define_variable ('mkinstalldirs',
3873 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
3877 define_variable ('mkinstalldirs', '$(mkdir_p)', INTERNAL);
3880 reject_var ('CONFIG_HEADER',
3881 "`CONFIG_HEADER' is an anachronism; now determined "
3882 . "automatically\nfrom `$configure_ac'");
3885 foreach my $spec (@config_headers)
3887 my ($out, @ins) = split_config_file_spec ($spec);
3888 # Generate CONFIG_HEADER define.
3889 if ($relative_dir eq dirname ($out))
3891 push @config_h, basename ($out);
3895 push @config_h, "\$(top_builddir)/$out";
3898 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
3901 # Now look for other files in this directory which must be remade
3902 # by config.status, and generate rules for them.
3903 my @actual_other_files = ();
3904 foreach my $lfile (@other_input_files)
3908 if ($lfile =~ /^([^:]*):(.*)$/)
3910 # This is the ":" syntax of AC_OUTPUT.
3912 @inputs = split (':', $2);
3918 @inputs = $file . '.in';
3921 # Automake files should not be stored in here, but in %MAKE_LIST.
3922 prog_error ("$lfile in \@other_input_files\n"
3923 . "\@other_input_files = (@other_input_files)")
3924 if -f $file . '.am';
3926 my $local = basename ($file);
3928 # Make sure the dist directory for each input file is created.
3929 # We only have to do this at the topmost level though. This
3930 # is a bit ugly but it easier than spreading out the logic,
3931 # especially in cases like AC_OUTPUT(foo/out:bar/in), where
3932 # there is no Makefile in bar/.
3933 if ($relative_dir eq '.')
3937 $dist_dirs{dirname ($_)} = 1;
3941 # We skip files that aren't in this directory. However, if
3942 # the file's directory does not have a Makefile, and we are
3943 # currently doing `.', then we create a rule to rebuild the
3944 # file in the subdir.
3945 my $fd = dirname ($file);
3946 if ($fd ne $relative_dir)
3948 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
3958 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
3960 $output_rules .= ($local . ': '
3961 . '$(top_builddir)/config.status '
3962 . "@rewritten_inputs\n"
3964 . 'cd $(top_builddir) && '
3965 . '$(SHELL) ./config.status '
3966 . ($relative_dir eq '.' ? '' : '$(subdir)/')
3969 push (@actual_other_files, $local);
3972 # For links we should clean destinations and distribute sources.
3973 foreach my $spec (@config_links)
3975 my ($link, $file) = split /:/, $spec;
3976 # Some people do AC_CONFIG_LINKS($computed). We only handle
3977 # the DEST:SRC form.
3979 my $where = $ac_config_files_location{$link};
3981 # Skip destinations that contain shell variables.
3984 # We skip links that aren't in this directory. However, if
3985 # the link's directory does not have a Makefile, and we are
3986 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
3987 # in `.'s Makefile.in.
3988 my $local = basename ($link);
3989 my $fd = dirname ($link);
3990 if ($fd ne $relative_dir)
3992 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4001 push @actual_other_files, $local if $local;
4004 # Do not process sources that contain shell variables.
4007 my $fd = dirname ($file);
4009 # Make sure the dist directory for each input file is created.
4010 # We only have to do this at the topmost level though.
4011 if ($relative_dir eq '.')
4013 $dist_dirs{$fd} = 1;
4016 # We distribute files that are in this directory.
4017 # At the top-level (`.') we also distribute files whose
4018 # directory does not have a Makefile.
4019 if (($fd eq $relative_dir)
4020 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4022 # The following will distribute $file as a side-effect when
4023 # it is appropriate (i.e., when $file is not already an output).
4024 # We do not need the result, just the side-effect.
4025 rewrite_inputs_into_dependencies ($link, $file);
4030 # These files get removed by "make distclean".
4031 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4032 @actual_other_files);
4038 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4039 'oldinclude', 'pkginclude',
4043 next unless $_->[1] =~ /\..*$/;
4044 &saw_extension ($&);
4050 return if ! $seen_gettext || $relative_dir ne '.';
4052 my $subdirs = var 'SUBDIRS';
4056 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4060 # Perform some sanity checks to help users get the right setup.
4061 # We disable these tests when po/ doesn't exist in order not to disallow
4062 # unusual gettext setups.
4067 # | 1) If a package doesn't have a directory po/ at top level, it
4068 # | will likely have multiple po/ directories in subpackages.
4070 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4071 # | is used without 'external'. It is also useful to warn for the
4072 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4073 # | warnings apply only to the usual layout of packages, therefore
4074 # | they should both be disabled if no po/ directory is found at
4079 my @subdirs = $subdirs->value_as_list_recursive;
4081 msg_var ('syntax', $subdirs,
4082 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4083 if ! grep ($_ eq 'po', @subdirs);
4085 # intl/ is not required when AM_GNU_GETTEXT is called with
4086 # the `external' option.
4087 msg_var ('syntax', $subdirs,
4088 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4089 if (! $seen_gettext_external
4090 && ! grep ($_ eq 'intl', @subdirs));
4092 # intl/ should not be used with AM_GNU_GETTEXT([external])
4093 msg_var ('syntax', $subdirs,
4094 "`intl' should not be in SUBDIRS when "
4095 . "AM_GNU_GETTEXT([external]) is used")
4096 if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
4099 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4102 # Handle footer elements.
4105 # NOTE don't use define_pretty_variable here, because
4106 # $contents{...} is already defined.
4107 $output_vars .= 'SOURCES = ' . variable_value ('SOURCES') . "\n\n"
4108 if variable_value ('SOURCES');
4110 reject_rule ('.SUFFIXES',
4111 "use variable `SUFFIXES', not target `.SUFFIXES'");
4113 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4114 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4115 # anything else, by sticking it right after the default: target.
4116 $output_header .= ".SUFFIXES:\n";
4117 my $suffixes = var 'SUFFIXES';
4118 my @suffixes = Automake::Rule::suffixes;
4119 if (@suffixes || $suffixes)
4121 # Make sure SUFFIXES has unique elements. Sort them to ensure
4122 # the output remains consistent. However, $(SUFFIXES) is
4123 # always at the start of the list, unsorted. This is done
4124 # because make will choose rules depending on the ordering of
4125 # suffixes, and this lets the user have some control. Push
4126 # actual suffixes, and not $(SUFFIXES). Some versions of make
4127 # do not like variable substitutions on the .SUFFIXES line.
4128 my @user_suffixes = ($suffixes
4129 ? $suffixes->value_as_list_recursive : ());
4131 my %suffixes = map { $_ => 1 } @suffixes;
4132 delete @suffixes{@user_suffixes};
4134 $output_header .= (".SUFFIXES: "
4135 . join (' ', @user_suffixes, sort keys %suffixes)
4139 $output_trailer .= file_contents ('footer', new Automake::Location);
4143 # Generate `make install' rules.
4144 sub handle_install ()
4146 $output_rules .= &file_contents
4148 new Automake::Location,
4149 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4150 ? (" \$(BUILT_SOURCES)\n"
4151 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4153 'installdirs-local' => (rule 'installdirs-local'
4154 ? ' installdirs-local' : ''),
4155 am__installdirs => variable_value ('am__installdirs') || '');
4159 # Deal with all and all-am.
4162 my ($makefile) = @_;
4166 # Put this at the beginning for the sake of non-GNU makes. This
4167 # is still wrong if these makes can run parallel jobs. But it is
4169 unshift (@all, basename ($makefile));
4171 foreach my $spec (@config_headers)
4173 my ($out, @ins) = split_config_file_spec ($spec);
4174 push (@all, basename ($out))
4175 if dirname ($out) eq $relative_dir;
4178 # Install `all' hooks.
4179 if (rule "all-local")
4181 push (@all, "all-local");
4182 &depend ('.PHONY', "all-local");
4185 &pretty_print_rule ("all-am:", "\t\t", @all);
4186 &depend ('.PHONY', 'all-am', 'all');
4191 my @local_headers = ();
4192 push @local_headers, '$(BUILT_SOURCES)'
4193 if var ('BUILT_SOURCES');
4194 foreach my $spec (@config_headers)
4196 my ($out, @ins) = split_config_file_spec ($spec);
4197 push @local_headers, basename ($out)
4198 if dirname ($out) eq $relative_dir;
4203 # We need to make sure config.h is built before we recurse.
4204 # We also want to make sure that built sources are built
4205 # before any ordinary `all' targets are run. We can't do this
4206 # by changing the order of dependencies to the "all" because
4207 # that breaks when using parallel makes. Instead we handle
4208 # things explicitly.
4209 $output_all .= ("all: @local_headers"
4211 . '$(MAKE) $(AM_MAKEFLAGS) '
4212 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4217 $output_all .= "all: " . (var ('SUBDIRS')
4218 ? 'all-recursive' : 'all-am') . "\n\n";
4223 # &do_check_merge_target ()
4224 # -------------------------
4225 # Handle check merge target specially.
4226 sub do_check_merge_target ()
4228 if (rule 'check-local')
4230 # User defined local form of target. So include it.
4231 push @check_tests, 'check-local';
4232 depend '.PHONY', 'check-local';
4235 # In --cygnus mode, check doesn't depend on all.
4236 if (option 'cygnus')
4238 # Just run the local check rules.
4239 pretty_print_rule ('check-am:', "\t\t", @check);
4243 # The check target must depend on the local equivalent of
4244 # `all', to ensure all the primary targets are built. Then it
4245 # must build the local check rules.
4246 $output_rules .= "check-am: all-am\n";
4247 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4251 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4255 depend '.PHONY', 'check', 'check-am';
4256 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4257 $output_rules .= ("check: "
4258 . (var ('BUILT_SOURCES')
4259 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4261 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4265 # handle_clean ($MAKEFILE)
4266 # ------------------------
4267 # Handle all 'clean' targets.
4268 sub handle_clean ($)
4270 my ($makefile) = @_;
4272 # Clean the files listed in user variables if they exist.
4273 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4274 if var ('MOSTLYCLEANFILES');
4275 $clean_files{'$(CLEANFILES)'} = CLEAN
4276 if var ('CLEANFILES');
4277 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4278 if var ('DISTCLEANFILES');
4279 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4280 if var ('MAINTAINERCLEANFILES');
4282 # Built sources are automatically removed by maintainer-clean.
4283 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4284 if var ('BUILT_SOURCES');
4286 # Compute a list of "rm"s to run for each target.
4287 my %rms = (MOSTLY_CLEAN, [],
4290 MAINTAINER_CLEAN, []);
4292 foreach my $file (keys %clean_files)
4294 my $when = $clean_files{$file};
4295 prog_error 'invalid entry in %clean_files'
4296 unless exists $rms{$when};
4298 my $rm = "rm -f $file";
4299 # If file is a variable, make sure when don't call `rm -f' without args.
4300 $rm ="test -z \"$file\" || $rm"
4301 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4303 push @{$rms{$when}}, "\t-$rm\n";
4306 $output_rules .= &file_contents
4308 new Automake::Location,
4309 MOSTLYCLEAN_RMS => join ('', @{$rms{&MOSTLY_CLEAN}}),
4310 CLEAN_RMS => join ('', @{$rms{&CLEAN}}),
4311 DISTCLEAN_RMS => join ('', @{$rms{&DIST_CLEAN}}),
4312 MAINTAINER_CLEAN_RMS => join ('', @{$rms{&MAINTAINER_CLEAN}}),
4313 MAKEFILE => basename $makefile,
4318 # &target_cmp ($A, $B)
4319 # --------------------
4320 # Subroutine for &handle_factored_dependencies to let `.PHONY' be last.
4333 # &handle_factored_dependencies ()
4334 # --------------------------------
4335 # Handle everything related to gathered targets.
4336 sub handle_factored_dependencies
4339 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4340 'uninstall-exec-local', 'uninstall-exec-hook')
4343 $x =~ s/(data|exec)-//;
4344 reject_rule ($utarg, "use `$x', not `$utarg'");
4347 reject_rule ('install-local',
4348 "use `install-data-local' or `install-exec-local', "
4349 . "not `install-local'");
4351 reject_rule ('install-info-local',
4352 "`install-info-local' target defined but "
4353 . "`no-installinfo' option not in use")
4354 unless option 'no-installinfo';
4356 # Install the -local hooks.
4357 foreach (keys %dependencies)
4359 # Hooks are installed on the -am targets.
4361 if (rule "$_-local")
4363 depend ("$_-am", "$_-local");
4364 depend ('.PHONY', "$_-local");
4368 # Install the -hook hooks.
4369 # FIXME: Why not be as liberal as we are with -local hooks?
4370 foreach ('install-exec', 'install-data', 'uninstall')
4372 if (rule ("$_-hook"))
4374 $actions{"$_-am"} .=
4375 ("\t\@\$(NORMAL_INSTALL)\n"
4376 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4380 # All the required targets are phony.
4381 depend ('.PHONY', keys %required_targets);
4383 # Actually output gathered targets.
4384 foreach (sort target_cmp keys %dependencies)
4386 # If there is nothing about this guy, skip it.
4388 unless (@{$dependencies{$_}}
4390 || $required_targets{$_});
4392 # Define gathered targets in undefined conditions.
4393 # FIXME: Right now we must handle .PHONY as an exception,
4394 # because people write things like
4395 # .PHONY: myphonytarget
4396 # to append dependencies. This would not work if Automake
4397 # refrained from defining its own .PHONY target as it does
4398 # with other overridden targets.
4399 my @undefined_conds = (TRUE,);
4403 Automake::Rule::define ($_, 'internal',
4404 RULE_AUTOMAKE, TRUE, INTERNAL);
4406 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4407 foreach my $cond (@undefined_conds)
4409 my $condstr = $cond->subst_string;
4410 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4411 $output_rules .= $actions{$_} if defined $actions{$_};
4412 $output_rules .= "\n";
4418 # &handle_tests_dejagnu ()
4419 # ------------------------
4420 sub handle_tests_dejagnu
4422 push (@check_tests, 'check-DEJAGNU');
4423 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4427 # Handle TESTS variable and other checks.
4430 if (option 'dejagnu')
4432 &handle_tests_dejagnu;
4436 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4438 reject_var ($c, "`$c' defined but `dejagnu' not in "
4439 . "`AUTOMAKE_OPTIONS'");
4445 push (@check_tests, 'check-TESTS');
4446 $output_rules .= &file_contents ('check', new Automake::Location);
4450 # Handle Emacs Lisp.
4451 sub handle_emacs_lisp
4453 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4456 return if ! @elfiles;
4458 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4459 map { $_->[1] } @elfiles);
4460 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4461 '$(am__ELFILES:.el=.elc)');
4462 # This one can be overridden by users.
4463 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4465 push @all, '$(ELCFILES)';
4467 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4468 'EMACS', 'lispdir');
4469 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4470 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4476 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4478 return if ! @pyfiles;
4480 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4481 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4482 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4488 my @sourcelist = &am_install_var ('-candist',
4490 'java', 'noinst', 'check');
4491 return if ! @sourcelist;
4493 my @prefix = am_primary_prefixes ('JAVA', 1,
4494 'java', 'noinst', 'check');
4497 foreach my $curs (@prefix)
4500 if $curs eq 'EXTRA';
4502 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4508 push (@all, 'class' . $dir . '.stamp');
4512 # Handle some of the minor options.
4513 sub handle_minor_options
4515 if (option 'readme-alpha')
4517 if ($relative_dir eq '.')
4519 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4521 msg ('error-gnits', $package_version_location,
4522 "version `$package_version' doesn't follow " .
4525 if (defined $1 && -f 'README-alpha')
4527 # This means we have an alpha release. See
4528 # GNITS_VERSION_PATTERN for details.
4529 push_dist_common ('README-alpha');
4535 ################################################################
4537 # ($OUTPUT, @INPUTS)
4538 # &split_config_file_spec ($SPEC)
4539 # -------------------------------
4540 # Decode the Autoconf syntax for config files (files, headers, links
4542 sub split_config_file_spec ($)
4545 my ($output, @inputs) = split (/:/, $spec);
4547 push @inputs, "$output.in"
4550 return ($output, @inputs);
4554 # locate_am (@POSSIBLE_SOURCES)
4555 # -----------------------------
4556 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4557 # This functions returns the first *.in file for which a *.am exists.
4558 # It returns undef otherwise.
4563 foreach my $file (@rest)
4565 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4576 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4577 # ---------------------------------------------------
4578 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4580 sub scan_autoconf_config_files ($$)
4582 my ($where, $config_files) = @_;
4584 # Look at potential Makefile.am's.
4585 foreach (split ' ', $config_files)
4587 # Must skip empty string for Perl 4.
4588 next if $_ eq "\\" || $_ eq '';
4590 # Handle $local:$input syntax.
4591 my ($local, @rest) = split (/:/);
4592 @rest = ("$local.in",) unless @rest;
4593 my $input = locate_am @rest;
4596 # We have a file that automake should generate.
4597 $make_list{$input} = join (':', ($local, @rest));
4601 # We have a file that automake should cause to be
4602 # rebuilt, but shouldn't generate itself.
4603 push (@other_input_files, $_);
4605 $ac_config_files_location{$local} = $where;
4610 # &scan_autoconf_traces ($FILENAME)
4611 # ---------------------------------
4612 sub scan_autoconf_traces ($)
4614 my ($filename) = @_;
4616 # Macros to trace, with their minimal number of arguments.
4618 # IMPORTANT: If you add a macro here, you should also add this macro
4619 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
4621 AC_CANONICAL_HOST => 0,
4622 AC_CANONICAL_SYSTEM => 0,
4623 AC_CONFIG_AUX_DIR => 1,
4624 AC_CONFIG_FILES => 1,
4625 AC_CONFIG_HEADERS => 1,
4626 AC_CONFIG_LINKS => 1,
4629 AC_LIBTOOL_TAGS => 0,
4631 AM_AUTOMAKE_VERSION => 1,
4632 AM_CONDITIONAL => 2,
4633 AM_ENABLE_MULTILIB => 0,
4634 AM_GNU_GETTEXT => 0,
4635 AM_INIT_AUTOMAKE => 0,
4636 AM_MAINTAINER_MODE => 0,
4637 AM_PROG_CC_C_O => 0,
4641 _LT_AC_TAGCONFIG => 0,
4644 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4646 # Use a separator unlikely to be used, not `:', the default, which
4647 # has a precise meaning for AC_CONFIG_FILES and so on.
4648 $traces .= join (' ',
4649 map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
4652 my $tracefh = new Automake::XFile ("$traces $filename |");
4653 verb "reading $traces";
4655 while ($_ = $tracefh->getline)
4658 my ($here, @args) = split (/::/);
4659 my $where = new Automake::Location $here;
4660 my $macro = $args[0];
4662 prog_error ("unrequested trace `$macro'")
4663 unless exists $traced{$macro};
4665 # Skip and diagnose malformed calls.
4666 if ($#args < $traced{$macro})
4668 msg ('syntax', $where, "not enough arguments for $macro");
4672 # Alphabetical ordering please.
4673 if ($macro eq 'AC_CANONICAL_HOST')
4675 if (! $seen_canonical)
4677 $seen_canonical = AC_CANONICAL_HOST;
4678 $canonical_location = $where;
4681 elsif ($macro eq 'AC_CANONICAL_SYSTEM')
4683 $seen_canonical = AC_CANONICAL_SYSTEM;
4684 $canonical_location = $where;
4686 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4688 if ($seen_init_automake)
4690 error ($where, "AC_CONFIG_AUX_DIR must be called before "
4691 . "AM_INIT_AUTOMAKE...", partial => 1);
4692 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
4694 $config_aux_dir = $args[1];
4695 $config_aux_dir_set_in_configure_ac = 1;
4696 $relative_dir = '.';
4697 check_directory ($config_aux_dir, $where);
4699 elsif ($macro eq 'AC_CONFIG_FILES')
4701 # Look at potential Makefile.am's.
4702 scan_autoconf_config_files ($where, $args[1]);
4704 elsif ($macro eq 'AC_CONFIG_HEADERS')
4706 foreach my $spec (split (' ', $args[1]))
4708 my ($dest, @src) = split (':', $spec);
4709 $ac_config_files_location{$dest} = $where;
4710 push @config_headers, $spec;
4713 elsif ($macro eq 'AC_CONFIG_LINKS')
4715 foreach my $spec (split (' ', $args[1]))
4717 my ($dest, $src) = split (':', $spec);
4718 $ac_config_files_location{$dest} = $where;
4719 push @config_links, $spec;
4722 elsif ($macro eq 'AC_INIT')
4724 if (defined $args[2])
4726 $package_version = $args[2];
4727 $package_version_location = $where;
4730 elsif ($macro eq 'AC_LIBSOURCE')
4732 $libsources{$args[1]} = $here;
4734 elsif ($macro eq 'AC_LIBTOOL_TAGS')
4736 # Reset %libtool_tags, in case AC_LIBTOOL_TAGS is
4737 # expansed after _LT_AC_TAGCONFIG. We want to ignore
4738 # _LT_AC_TAGCONFIG if AC_LIBTOOL_TAGS is called.
4739 %libtool_tags = (CC => 1);
4740 $libtool_tags{$_} = 1 foreach split (' ', $args[1]);
4742 elsif ($macro eq 'AC_SUBST')
4744 # Just check for alphanumeric in AC_SUBST. If you do
4745 # AC_SUBST(5), then too bad.
4746 $configure_vars{$args[1]} = $where
4747 if $args[1] =~ /^\w+$/;
4749 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
4752 "version mismatch. This is Automake $VERSION,\n" .
4753 "but the definition used by this AM_INIT_AUTOMAKE\n" .
4754 "comes from Automake $args[1]. You should recreate\n" .
4755 "aclocal.m4 with aclocal and run automake again.\n",
4756 # $? = 63 is used to indicate version mismatch to missing.
4758 if $VERSION ne $args[1];
4760 $seen_automake_version = 1;
4762 elsif ($macro eq 'AM_CONDITIONAL')
4764 $configure_cond{$args[1]} = $where;
4766 elsif ($macro eq 'AM_ENABLE_MULTILIB')
4768 $seen_multilib = $where;
4770 elsif ($macro eq 'AM_GNU_GETTEXT')
4772 $seen_gettext = $where;
4773 $ac_gettext_location = $where;
4774 $seen_gettext_external = grep ($_ eq 'external', @args);
4776 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4778 $seen_init_automake = $where;
4779 if (defined $args[2])
4781 $package_version = $args[2];
4782 $package_version_location = $where;
4784 elsif (defined $args[1])
4787 if (process_global_option_list ($where,
4788 split (' ', $args[1])));
4791 elsif ($macro eq 'AM_MAINTAINER_MODE')
4793 $seen_maint_mode = $where;
4795 elsif ($macro eq 'AM_PROG_CC_C_O')
4797 $seen_cc_c_o = $where;
4799 elsif ($macro eq 'm4_include'
4800 || $macro eq 'm4_sinclude'
4801 || $macro eq 'sinclude')
4803 # Some modified versions of Autoconf don't use
4804 # forzen files. Consequently it's possible that we see all
4805 # m4_include's performed during Autoconf's startup.
4806 # Obviously we don't want to distribute Autoconf's files
4807 # so we skip absolute filenames here.
4808 push @configure_deps, '$(top_srcdir)/' . $args[1]
4809 unless $here =~ m,^(?:\w:)?[\\/],;
4810 # Keep track of the greatest timestamp.
4813 my $mtime = mtime $args[1];
4814 $configure_deps_greatest_timestamp = $mtime
4815 if $mtime > $configure_deps_greatest_timestamp;
4818 elsif ($macro eq '_LT_AC_TAGCONFIG')
4820 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
4821 # We use it to detect whether tags are supported. Our prefered
4822 # interface is AC_LIBTOOL_TAGS, but it was introduced in
4823 # Libtool 1.6. Ignore _LT_AC_TAGCONFIG if AC_LIBTOOL_TAGS has
4825 if (0 == keys %libtool_tags)
4827 # Hardcode the tags supported by Libtool 1.5.
4828 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
4837 # &scan_autoconf_files ()
4838 # -----------------------
4839 # Check whether we use `configure.ac' or `configure.in'.
4840 # Scan it (and possibly `aclocal.m4') for interesting things.
4841 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
4842 sub scan_autoconf_files ()
4844 # Reinitialize libsources here. This isn't really necessary,
4845 # since we currently assume there is only one configure.ac. But
4846 # that won't always be the case.
4849 # Keep track of the youngest configure dependency.
4850 $configure_deps_greatest_timestamp = mtime $configure_ac;
4851 if (-e 'aclocal.m4')
4853 my $mtime = mtime 'aclocal.m4';
4854 $configure_deps_greatest_timestamp = $mtime
4855 if $mtime > $configure_deps_greatest_timestamp;
4858 scan_autoconf_traces ($configure_ac);
4860 @configure_input_files = sort keys %make_list;
4861 # Set input and output files if not specified by user.
4864 @input_files = @configure_input_files;
4865 %output_files = %make_list;
4869 if (! $seen_init_automake)
4871 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
4872 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
4873 . "\nthat aclocal.m4 is present in the top-level directory,\n"
4874 . "and that aclocal.m4 was recently regenerated "
4875 . "(using aclocal).");
4879 if (! $seen_automake_version)
4881 if (-f 'aclocal.m4')
4883 error ($seen_init_automake,
4884 "your implementation of AM_INIT_AUTOMAKE comes from " .
4885 "an\nold Automake version. You should recreate " .
4886 "aclocal.m4\nwith aclocal and run automake again.\n",
4887 # $? = 63 is used to indicate version mismatch to missing.
4892 error ($seen_init_automake,
4893 "no proper implementation of AM_INIT_AUTOMAKE was " .
4894 "found,\nprobably because aclocal.m4 is missing...\n" .
4895 "You should run aclocal to create this file, then\n" .
4896 "run automake again.\n");
4903 # Reorder @input_files so that the Makefile that distributes aux
4904 # files is processed last. This is important because each directory
4905 # can require auxiliary scripts and we should wait until they have
4906 # been installed before distributing them.
4908 # The Makefile.in that distribute the aux files is the one in
4909 # $config_aux_dir or the top-level Makefile.
4910 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
4911 my @new_input_files = ();
4912 while (@input_files)
4914 my $in = pop @input_files;
4915 my @ins = split (/:/, $output_files{$in});
4916 if (dirname ($ins[0]) eq $auxdirdist)
4918 push @new_input_files, $in;
4919 $automake_will_process_aux_dir = 1;
4923 unshift @new_input_files, $in;
4926 @input_files = @new_input_files;
4928 # If neither the auxdir/Makefile nor the ./Makefile are generated
4929 # by Automake, we won't distribute the aux files anyway. Assume
4930 # the user know what (s)he does, and pretend we will distribute
4931 # them to disable the error in require_file_internal.
4932 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
4934 # Look for some files we need. Always check for these. This
4935 # check must be done for every run, even those where we are only
4936 # looking at a subdir Makefile. We must set relative_dir for
4937 # maybe_push_required_file to work.
4938 $relative_dir = '.';
4939 require_conf_file ($configure_ac, FOREIGN, 'install-sh', 'missing');
4940 err_am "`install.sh' is an anachronism; use `install-sh' instead"
4941 if -f $config_aux_dir . '/install.sh';
4943 # Preserve dist_common for later.
4944 $configure_dist_common = variable_value ('DIST_COMMON') || '';
4948 ################################################################
4950 # Set up for Cygnus mode.
4953 my $cygnus = option 'cygnus';
4954 return unless $cygnus;
4956 set_strictness ('foreign');
4957 set_option ('no-installinfo', $cygnus);
4958 set_option ('no-dependencies', $cygnus);
4959 set_option ('no-dist', $cygnus);
4961 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
4962 if !$seen_maint_mode;
4965 # Do any extra checking for GNU standards.
4966 sub check_gnu_standards
4968 if ($relative_dir eq '.')
4970 # In top level (or only) directory.
4971 require_file ("$am_file.am", GNU,
4972 qw/INSTALL NEWS README AUTHORS ChangeLog/);
4974 # Accept one of these three licenses; default to COPYING.
4975 # Make sure we do not overwrite an existing license.
4977 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
4985 require_file ("$am_file.am", GNU, 'COPYING')
4989 for my $opt ('no-installman', 'no-installinfo')
4991 msg ('error-gnu', option $opt,
4992 "option `$opt' disallowed by GNU standards")
4997 # Do any extra checking for GNITS standards.
4998 sub check_gnits_standards
5000 if ($relative_dir eq '.')
5002 # In top level (or only) directory.
5003 require_file ("$am_file.am", GNITS, 'THANKS');
5007 ################################################################
5009 # Functions to handle files of each language.
5011 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5012 # simple formula: Return value is LANG_SUBDIR if the resulting object
5013 # file should be in a subdir if the source file is, LANG_PROCESS if
5014 # file is to be dealt with, LANG_IGNORE otherwise.
5016 # Much of the actual processing is handled in
5017 # handle_single_transform. These functions exist so that
5018 # auxiliary information can be recorded for a later cleanup pass.
5019 # Note that the calls to these functions are computed, so don't bother
5020 # searching for their precise names in the source.
5022 # This is just a convenience function that can be used to determine
5023 # when a subdir object should be used.
5026 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5029 # Rewrite a single C source file.
5032 my ($directory, $base, $ext) = @_;
5034 if (option 'ansi2knr' && $base =~ /_$/)
5036 # FIXME: include line number in error.
5037 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5040 my $r = LANG_PROCESS;
5041 if (option 'subdir-objects')
5044 $base = $directory . '/' . $base
5045 unless $directory eq '.' || $directory eq '';
5047 err_am ("C objects in subdir but `AM_PROG_CC_C_O' "
5048 . "not in `$configure_ac'",
5049 uniq_scope => US_GLOBAL)
5050 unless $seen_cc_c_o;
5052 require_conf_file ("$am_file.am", FOREIGN, 'compile');
5054 # In this case we already have the directory information, so
5055 # don't add it again.
5056 $de_ansi_files{$base} = '';
5060 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5068 # Rewrite a single C++ source file.
5069 sub lang_cxx_rewrite
5071 return &lang_sub_obj;
5074 # Rewrite a single header file.
5075 sub lang_header_rewrite
5077 # Header files are simply ignored.
5081 # Rewrite a single yacc file.
5082 sub lang_yacc_rewrite
5084 my ($directory, $base, $ext) = @_;
5086 my $r = &lang_sub_obj;
5087 (my $newext = $ext) =~ tr/y/c/;
5088 return ($r, $newext);
5091 # Rewrite a single yacc++ file.
5092 sub lang_yaccxx_rewrite
5094 my ($directory, $base, $ext) = @_;
5096 my $r = &lang_sub_obj;
5097 (my $newext = $ext) =~ tr/y/c/;
5098 return ($r, $newext);
5101 # Rewrite a single lex file.
5102 sub lang_lex_rewrite
5104 my ($directory, $base, $ext) = @_;
5106 my $r = &lang_sub_obj;
5107 (my $newext = $ext) =~ tr/l/c/;
5108 return ($r, $newext);
5111 # Rewrite a single lex++ file.
5112 sub lang_lexxx_rewrite
5114 my ($directory, $base, $ext) = @_;
5116 my $r = &lang_sub_obj;
5117 (my $newext = $ext) =~ tr/l/c/;
5118 return ($r, $newext);
5121 # Rewrite a single assembly file.
5122 sub lang_asm_rewrite
5124 return &lang_sub_obj;
5127 # Rewrite a single Fortran 77 file.
5128 sub lang_f77_rewrite
5130 return LANG_PROCESS;
5133 # Rewrite a single Fortran file.
5136 return LANG_PROCESS;
5139 # Rewrite a single preprocessed Fortran file.
5140 sub lang_ppfc_rewrite
5142 return LANG_PROCESS;
5145 # Rewrite a single preprocessed Fortran 77 file.
5146 sub lang_ppf77_rewrite
5148 return LANG_PROCESS;
5151 # Rewrite a single ratfor file.
5152 sub lang_ratfor_rewrite
5154 return LANG_PROCESS;
5157 # Rewrite a single Objective C file.
5158 sub lang_objc_rewrite
5160 return &lang_sub_obj;
5163 # Rewrite a single Java file.
5164 sub lang_java_rewrite
5169 # The lang_X_finish functions are called after all source file
5170 # processing is done. Each should handle defining rules for the
5171 # language, etc. A finish function is only called if a source file of
5172 # the appropriate type has been seen.
5176 # Push all libobjs files onto de_ansi_files. We actually only
5177 # push files which exist in the current directory, and which are
5178 # genuine source files.
5179 foreach my $file (keys %libsources)
5181 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5183 $de_ansi_files{$1} = ''
5187 if (option 'ansi2knr' && keys %de_ansi_files)
5189 # Make all _.c files depend on their corresponding .c files.
5191 foreach my $base (sort keys %de_ansi_files)
5193 # Each _.c file must depend on ansi2knr; otherwise it
5194 # might be used in a parallel build before it is built.
5195 # We need to support files in the srcdir and in the build
5196 # dir (because these files might be auto-generated. But
5197 # we can't use $< -- some makes only define $< during a
5199 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5200 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5201 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5202 . '`if test -f $(srcdir)/' . $ansfile
5203 . '; then echo $(srcdir)/' . $ansfile
5204 . '; else echo ' . $ansfile . '; fi` '
5205 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5206 . '| $(ANSI2KNR) > $@'
5207 # If ansi2knr fails then we shouldn't
5208 # create the _.c file
5209 . " || rm -f \$\@\n");
5210 push (@objects, $base . '_.$(OBJEXT)');
5211 push (@objects, $base . '_.lo')
5214 # Explicitly clean the _.c files if they are in a
5215 # subdirectory. (In the current directory they get erased
5216 # by a `rm -f *_.c' rule.)
5217 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5218 if dirname ($base) ne '.';
5221 # Make all _.o (and _.lo) files depend on ansi2knr.
5222 # Use a sneaky little hack to make it print nicely.
5223 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5227 # This is a yacc helper which is called whenever we have decided to
5228 # compile a yacc file.
5229 sub lang_yacc_target_hook
5231 my ($self, $aggregate, $output, $input) = @_;
5233 my $flag = $aggregate . "_YFLAGS";
5234 my $flagvar = var $flag;
5235 my $YFLAGSvar = var 'YFLAGS';
5236 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5237 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5239 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5240 my $header = $output_base . '.h';
5242 # Found a `-d' that applies to the compilation of this file.
5243 # Add a dependency for the generated header file, and arrange
5244 # for that file to be included in the distribution.
5245 # FIXME: this fails for `nodist_*_SOURCES'.
5246 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5247 RULE_AUTOMAKE, TRUE,
5250 my $condstr = $cond->subst_string;
5251 $output_rules .= ("$condstr${header}: $output\n"
5252 # Recover from removal of $header
5253 . "$condstr\t\@if test ! -f \$@; then \\\n"
5254 . "$condstr\t rm -f $output; \\\n"
5255 . "$condstr\t \$(MAKE) $output; \\\n"
5256 . "$condstr\telse :; fi\n");
5258 &push_dist_common ($header);
5260 # If the files are built in the build directory, then we want
5261 # to remove them with `make clean'. If they are in srcdir
5262 # they shouldn't be touched. However, we can't determine this
5263 # statically, and the GNU rules say that yacc/lex output files
5264 # should be removed by maintainer-clean. So that's what we
5266 $clean_files{$header} = MAINTAINER_CLEAN;
5268 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5269 # See the comment above for $HEADER.
5270 $clean_files{$output} = MAINTAINER_CLEAN;
5273 # This is a lex helper which is called whenever we have decided to
5274 # compile a lex file.
5275 sub lang_lex_target_hook
5277 my ($self, $aggregate, $output, $input) = @_;
5278 # If the files are built in the build directory, then we want to
5279 # remove them with `make clean'. If they are in srcdir they
5280 # shouldn't be touched. However, we can't determine this
5281 # statically, and the GNU rules say that yacc/lex output files
5282 # should be removed by maintainer-clean. So that's what we do.
5283 $clean_files{$output} = MAINTAINER_CLEAN;
5286 # This is a helper for both lex and yacc.
5287 sub yacc_lex_finish_helper
5289 return if defined $language_scratch{'lex-yacc-done'};
5290 $language_scratch{'lex-yacc-done'} = 1;
5292 # If there is more than one distinct yacc (resp lex) source file
5293 # in a given directory, then the `ylwrap' program is required to
5294 # allow parallel builds to work correctly. FIXME: for now, no
5296 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5297 if ($config_aux_dir_set_in_configure_ac)
5299 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5303 &define_variable ('YLWRAP', '$(top_srcdir)/ylwrap', INTERNAL);
5307 sub lang_yacc_finish
5309 return if defined $language_scratch{'yacc-done'};
5310 $language_scratch{'yacc-done'} = 1;
5312 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5314 &yacc_lex_finish_helper
5315 if count_files_for_language ('yacc') > 1;
5321 return if defined $language_scratch{'lex-done'};
5322 $language_scratch{'lex-done'} = 1;
5324 &yacc_lex_finish_helper
5325 if count_files_for_language ('lex') > 1;
5329 # Given a hash table of linker names, pick the name that has the most
5330 # precedence. This is lame, but something has to have global
5331 # knowledge in order to eliminate the conflict. Add more linkers as
5337 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK))
5339 return $l if defined $linkers{$l};
5344 # Called to indicate that an extension was used.
5348 if (! defined $extension_seen{$ext})
5350 $extension_seen{$ext} = 1;
5354 ++$extension_seen{$ext};
5358 # Return the number of files seen for a given language. Knows about
5359 # special cases we care about. FIXME: this is hideous. We need
5360 # something that involves real language objects. For instance yacc
5361 # and yaccxx could both derive from a common yacc class which would
5362 # know about the strange ylwrap requirement. (Or better yet we could
5363 # just not support legacy yacc!)
5364 sub count_files_for_language
5369 if ($name eq 'yacc' || $name eq 'yaccxx')
5371 @names = ('yacc', 'yaccxx');
5373 elsif ($name eq 'lex' || $name eq 'lexxx')
5375 @names = ('lex', 'lexxx');
5383 foreach $name (@names)
5385 my $lang = $languages{$name};
5386 foreach my $ext (@{$lang->extensions})
5388 $r += $extension_seen{$ext}
5389 if defined $extension_seen{$ext};
5396 # Called to ask whether source files have been seen . If HEADERS is 1,
5397 # headers can be included.
5402 # count all the sources
5404 foreach my $val (values %extension_seen)
5411 $count -= count_files_for_language ('header');
5418 # register_language (%ATTRIBUTE)
5419 # ------------------------------
5420 # Register a single language.
5421 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5422 sub register_language (%)
5428 unless defined $option{'ansi'};
5429 $option{'autodep'} = 'no'
5430 unless defined $option{'autodep'};
5431 $option{'linker'} = ''
5432 unless defined $option{'linker'};
5433 $option{'flags'} = []
5434 unless defined $option{'flags'};
5435 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5436 unless defined $option{'output_extensions'};
5438 my $lang = new Language (%option);
5441 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5442 $languages{$lang->name} = $lang;
5444 # Update the pattern of known extensions.
5445 accept_extensions (@{$lang->extensions});
5447 # Upate the $suffix_rule map.
5448 foreach my $suffix (@{$lang->extensions})
5450 foreach my $dest (&{$lang->output_extensions} ($suffix))
5452 register_suffix_rule (INTERNAL, $suffix, $dest);
5457 # derive_suffix ($EXT, $OBJ)
5458 # --------------------------
5459 # This function is used to find a path from a user-specified suffix $EXT
5460 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5461 sub derive_suffix ($$)
5463 my ($source_ext, $obj) = @_;
5465 while (! $extension_map{$source_ext}
5466 && $source_ext ne $obj
5467 && exists $suffix_rules->{$source_ext}
5468 && exists $suffix_rules->{$source_ext}{$obj})
5470 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5477 ################################################################
5479 # Pretty-print something and append to output_rules.
5480 sub pretty_print_rule
5482 $output_rules .= &makefile_wrap (@_);
5486 ################################################################
5489 ## -------------------------------- ##
5490 ## Handling the conditional stack. ##
5491 ## -------------------------------- ##
5495 # make_conditional_string ($NEGATE, $COND)
5496 # ----------------------------------------
5497 sub make_conditional_string ($$)
5499 my ($negate, $cond) = @_;
5500 $cond = "${cond}_TRUE"
5501 unless $cond =~ /^TRUE|FALSE$/;
5502 $cond = Automake::Condition::conditional_negate ($cond)
5509 # cond_stack_if ($NEGATE, $COND, $WHERE)
5510 # --------------------------------------
5511 sub cond_stack_if ($$$)
5513 my ($negate, $cond, $where) = @_;
5515 error $where, "$cond does not appear in AM_CONDITIONAL"
5516 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5518 push (@cond_stack, make_conditional_string ($negate, $cond));
5520 return new Automake::Condition (@cond_stack);
5525 # cond_stack_else ($NEGATE, $COND, $WHERE)
5526 # ----------------------------------------
5527 sub cond_stack_else ($$$)
5529 my ($negate, $cond, $where) = @_;
5533 error $where, "else without if";
5537 $cond_stack[$#cond_stack] =
5538 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5540 # If $COND is given, check against it.
5543 $cond = make_conditional_string ($negate, $cond);
5545 error ($where, "else reminder ($negate$cond) incompatible with "
5546 . "current conditional: $cond_stack[$#cond_stack]")
5547 if $cond_stack[$#cond_stack] ne $cond;
5550 return new Automake::Condition (@cond_stack);
5555 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5556 # -----------------------------------------
5557 sub cond_stack_endif ($$$)
5559 my ($negate, $cond, $where) = @_;
5564 error $where, "endif without if";
5568 # If $COND is given, check against it.
5571 $cond = make_conditional_string ($negate, $cond);
5573 error ($where, "endif reminder ($negate$cond) incompatible with "
5574 . "current conditional: $cond_stack[$#cond_stack]")
5575 if $cond_stack[$#cond_stack] ne $cond;
5580 return new Automake::Condition (@cond_stack);
5587 ## ------------------------ ##
5588 ## Handling the variables. ##
5589 ## ------------------------ ##
5592 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
5593 # -----------------------------------------------------
5594 # Like define_variable, but the value is a list, and the variable may
5595 # be defined conditionally. The second argument is the Condition
5596 # under which the value should be defined; this should be the empty
5597 # string to define the variable unconditionally. The third argument
5598 # is a list holding the values to use for the variable. The value is
5599 # pretty printed in the output file.
5600 sub define_pretty_variable ($$$@)
5602 my ($var, $cond, $where, @value) = @_;
5604 if (! vardef ($var, $cond))
5606 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
5607 '', $where, VAR_PRETTY);
5608 rvar ($var)->rdef ($cond)->set_seen;
5613 # define_variable ($VAR, $VALUE, $WHERE)
5614 # --------------------------------------
5615 # Define a new user variable VAR to VALUE, but only if not already defined.
5616 sub define_variable ($$$)
5618 my ($var, $value, $where) = @_;
5619 define_pretty_variable ($var, TRUE, $where, $value);
5623 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
5624 # -----------------------------------------------------------
5625 # Define the $VAR which content is the list of file names composed of
5626 # a @BASENAME and the $EXTENSION.
5627 sub define_files_variable ($\@$$)
5629 my ($var, $basename, $extension, $where) = @_;
5630 define_variable ($var,
5631 join (' ', map { "$_.$extension" } @$basename),
5636 # Like define_variable, but define a variable to be the configure
5637 # substitution by the same name.
5638 sub define_configure_variable ($)
5642 my $pretty = VAR_ASIS;
5643 my $owner = VAR_CONFIGURE;
5645 # Do not output the ANSI2KNR configure variable -- we AC_SUBST
5646 # it in protos.m4, but later redefine it elsewhere. This is
5647 # pretty hacky. We also don't output AMDEPBACKSLASH: it might
5648 # be subst'd by `\', which certainly would not be appreciated by
5650 if ($var eq 'ANSI2KNR' || $var eq 'AMDEPBACKSLASH')
5652 $pretty = VAR_SILENT;
5653 $owner = VAR_AUTOMAKE;
5656 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
5657 '', $configure_vars{$var}, $pretty);
5661 # define_compiler_variable ($LANG)
5662 # --------------------------------
5663 # Define a compiler variable. We also handle defining the `LT'
5664 # version of the command when using libtool.
5665 sub define_compiler_variable ($)
5669 my ($var, $value) = ($lang->compiler, $lang->compile);
5670 my $libtool_tag = '';
5671 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5672 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5673 &define_variable ($var, $value, INTERNAL);
5674 &define_variable ("LT$var",
5675 "\$(LIBTOOL) --mode=compile $libtool_tag$value",
5681 # define_linker_variable ($LANG)
5682 # ------------------------------
5683 # Define linker variables.
5684 sub define_linker_variable ($)
5688 my ($var, $value) = ($lang->lder, $lang->ld);
5689 my $libtool_tag = '';
5690 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5691 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5693 &define_variable ($lang->lder, $lang->ld, INTERNAL);
5694 # CCLINK = $(CCLD) blah blah...
5695 &define_variable ($lang->linker,
5697 '$(LIBTOOL) --mode=link ' . $libtool_tag : '')
5702 ################################################################
5704 # &check_trailing_slash ($WHERE, $LINE)
5705 # --------------------------------------
5706 # Return 1 iff $LINE ends with a slash.
5707 # Might modify $LINE.
5708 sub check_trailing_slash ($\$)
5710 my ($where, $line) = @_;
5712 # Ignore `##' lines.
5713 return 0 if $$line =~ /$IGNORE_PATTERN/o;
5715 # Catch and fix a common error.
5716 msg "syntax", $where, "whitespace following trailing backslash"
5717 if $$line =~ s/\\\s+\n$/\\\n/;
5719 return $$line =~ /\\$/;
5723 # &read_am_file ($AMFILE, $WHERE)
5724 # -------------------------------
5725 # Read Makefile.am and set up %contents. Simultaneously copy lines
5726 # from Makefile.am into $output_trailer, or define variables as
5727 # appropriate. NOTE we put rules in the trailer section. We want
5728 # user rules to come after our generated stuff.
5729 sub read_am_file ($$)
5731 my ($amfile, $where) = @_;
5733 my $am_file = new Automake::XFile ("< $amfile");
5734 verb "reading $amfile";
5736 # Keep track of the youngest output dependency.
5737 my $mtime = mtime $amfile;
5738 $output_deps_greatest_timestamp = $mtime
5739 if $mtime > $output_deps_greatest_timestamp;
5746 use constant IN_VAR_DEF => 0;
5747 use constant IN_RULE_DEF => 1;
5748 use constant IN_COMMENT => 2;
5749 my $prev_state = IN_RULE_DEF;
5751 while ($_ = $am_file->getline)
5753 $where->set ("$amfile:$.");
5754 if (/$IGNORE_PATTERN/o)
5756 # Merely delete comments beginning with two hashes.
5758 elsif (/$WHITE_PATTERN/o)
5760 error $where, "blank line following trailing backslash"
5762 # Stick a single white line before the incoming macro or rule.
5765 # Flush all comments seen so far.
5768 $output_vars .= $comment;
5772 elsif (/$COMMENT_PATTERN/o)
5774 # Stick comments before the incoming macro or rule. Make
5775 # sure a blank line precedes the first block of comments.
5776 $spacing = "\n" unless $blank;
5778 $comment .= $spacing . $_;
5780 $prev_state = IN_COMMENT;
5786 $saw_bk = check_trailing_slash ($where, $_);
5789 # We save the conditional stack on entry, and then check to make
5790 # sure it is the same on exit. This lets us conditionally include
5792 my @saved_cond_stack = @cond_stack;
5793 my $cond = new Automake::Condition (@cond_stack);
5795 my $last_var_name = '';
5796 my $last_var_type = '';
5797 my $last_var_value = '';
5799 # FIXME: shouldn't use $_ in this loop; it is too big.
5802 $where->set ("$amfile:$.");
5804 # Make sure the line is \n-terminated.
5808 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
5809 # used by users. @MAINT@ is an anachronism now.
5810 $_ =~ s/\@MAINT\@//g
5811 unless $seen_maint_mode;
5813 my $new_saw_bk = check_trailing_slash ($where, $_);
5815 if (/$IGNORE_PATTERN/o)
5817 # Merely delete comments beginning with two hashes.
5819 elsif (/$WHITE_PATTERN/o)
5821 # Stick a single white line before the incoming macro or rule.
5823 error $where, "blank line following trailing backslash"
5826 elsif (/$COMMENT_PATTERN/o)
5828 # Stick comments before the incoming macro or rule.
5829 $comment .= $spacing . $_;
5831 error $where, "comment following trailing backslash"
5832 if $saw_bk && $comment eq '';
5833 $prev_state = IN_COMMENT;
5837 if ($prev_state == IN_RULE_DEF)
5839 my $cond = new Automake::Condition @cond_stack;
5840 $output_trailer .= $cond->subst_string;
5841 $output_trailer .= $_;
5843 elsif ($prev_state == IN_COMMENT)
5845 # If the line doesn't start with a `#', add it.
5846 # We do this because a continued comment like
5850 # is not portable. BSD make doesn't honor
5851 # escaped newlines in comments.
5853 $comment .= $spacing . $_;
5855 else # $prev_state == IN_VAR_DEF
5857 $last_var_value .= ' '
5858 unless $last_var_value =~ /\s$/;
5859 $last_var_value .= $_;
5863 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
5864 $last_var_type, $cond,
5865 $last_var_value, $comment,
5866 $last_where, VAR_ASIS)
5868 $comment = $spacing = '';
5873 elsif (/$IF_PATTERN/o)
5875 $cond = cond_stack_if ($1, $2, $where);
5877 elsif (/$ELSE_PATTERN/o)
5879 $cond = cond_stack_else ($1, $2, $where);
5881 elsif (/$ENDIF_PATTERN/o)
5883 $cond = cond_stack_endif ($1, $2, $where);
5886 elsif (/$RULE_PATTERN/o)
5889 $prev_state = IN_RULE_DEF;
5891 # For now we have to output all definitions of user rules
5892 # and can't diagnose duplicates (see the comment in
5893 # rule_define). So we go on and ignore the return value.
5894 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
5896 check_variable_expansions ($_, $where);
5898 $output_trailer .= $comment . $spacing;
5899 my $cond = new Automake::Condition @cond_stack;
5900 $output_trailer .= $cond->subst_string;
5901 $output_trailer .= $_;
5902 $comment = $spacing = '';
5904 elsif (/$ASSIGNMENT_PATTERN/o)
5906 # Found a macro definition.
5907 $prev_state = IN_VAR_DEF;
5908 $last_var_name = $1;
5909 $last_var_type = $2;
5910 $last_var_value = $3;
5911 $last_where = $where->clone;
5912 if ($3 ne '' && substr ($3, -1) eq "\\")
5914 # We preserve the `\' because otherwise the long lines
5915 # that are generated will be truncated by broken
5917 $last_var_value = $3 . "\n";
5922 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
5923 $last_var_type, $cond,
5924 $last_var_value, $comment,
5925 $last_where, VAR_ASIS)
5927 $comment = $spacing = '';
5930 elsif (/$INCLUDE_PATTERN/o)
5934 if ($path =~ s/^\$\(top_srcdir\)\///)
5936 push (@include_stack, "\$\(top_srcdir\)/$path");
5937 # Distribute any included file.
5939 # Always use the $(top_srcdir) prefix in DIST_COMMON,
5940 # otherwise OSF make will implicitly copy the included
5941 # file in the build tree during `make distdir' to satisfy
5943 # (subdircond2.test and subdircond3.test will fail.)
5944 push_dist_common ("\$\(top_srcdir\)/$path");
5948 $path =~ s/\$\(srcdir\)\///;
5949 push (@include_stack, "\$\(srcdir\)/$path");
5950 # Always use the $(srcdir) prefix in DIST_COMMON,
5951 # otherwise OSF make will implicitly copy the included
5952 # file in the build tree during `make distdir' to satisfy
5954 # (subdircond2.test and subdircond3.test will fail.)
5955 push_dist_common ("\$\(srcdir\)/$path");
5956 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
5958 $where->push_context ("`$path' included from here");
5959 &read_am_file ($path, $where);
5960 $where->pop_context;
5964 # This isn't an error; it is probably a continued rule.
5965 # In fact, this is what we assume.
5966 $prev_state = IN_RULE_DEF;
5967 check_variable_expansions ($_, $where);
5968 $output_trailer .= $comment . $spacing;
5969 my $cond = new Automake::Condition @cond_stack;
5970 $output_trailer .= $cond->subst_string;
5971 $output_trailer .= $_;
5972 $comment = $spacing = '';
5973 error $where, "`#' comment at start of rule is unportable"
5974 if $_ =~ /^\t\s*\#/;
5977 $saw_bk = $new_saw_bk;
5978 $_ = $am_file->getline;
5981 $output_trailer .= $comment;
5983 error ($where, "trailing backslash on last line")
5986 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
5987 : "too many conditionals closed in include file"))
5988 if "@saved_cond_stack" ne "@cond_stack";
5992 # define_standard_variables ()
5993 # ----------------------------
5994 # A helper for read_main_am_file which initializes configure variables
5995 # and variables from header-vars.am.
5996 sub define_standard_variables
5998 my $saved_output_vars = $output_vars;
5999 my ($comments, undef, $rules) =
6000 file_contents_internal (1, "$libdir/am/header-vars.am",
6001 new Automake::Location);
6003 foreach my $var (sort keys %configure_vars)
6005 &define_configure_variable ($var);
6008 $output_vars .= $comments . $rules;
6011 # Read main am file.
6012 sub read_main_am_file
6016 # This supports the strange variable tricks we are about to play.
6017 prog_error (macros_dump () . "variable defined before read_main_am_file")
6018 if (scalar (variables) > 0);
6020 # Generate copyright header for generated Makefile.in.
6021 # We do discard the output of predefined variables, handled below.
6022 $output_vars = ("# $in_file_name generated by automake "
6023 . $VERSION . " from $am_file_name.\n");
6024 $output_vars .= '# ' . subst ('configure_input') . "\n";
6025 $output_vars .= $gen_copyright;
6027 # We want to predefine as many variables as possible. This lets
6028 # the user set them with `+=' in Makefile.am.
6029 &define_standard_variables;
6031 # Read user file, which might override some of our values.
6032 &read_am_file ($amfile, new Automake::Location);
6037 ################################################################
6040 # &flatten ($STRING)
6041 # ------------------
6042 # Flatten the $STRING and return the result.
6057 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6058 # ------------------------------------------
6059 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6061 sub make_paragraphs ($%)
6063 my ($file, %transform) = @_;
6065 # Complete %transform with global options and make it a Perl $command.
6066 # Note that %transform goes last, so it overrides global options.
6068 "s/$IGNORE_PATTERN//gm;"
6069 . transform ('CYGNUS' => !! option 'cygnus',
6071 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6073 'BZIP2' => !! option 'dist-bzip2',
6074 'COMPRESS' => !! option 'dist-tarZ',
6075 'GZIP' => ! option 'no-dist-gzip',
6076 'SHAR' => !! option 'dist-shar',
6077 'ZIP' => !! option 'dist-zip',
6079 'INSTALL-INFO' => ! option 'no-installinfo',
6080 'INSTALL-MAN' => ! option 'no-installman',
6081 'CK-NEWS' => !! option 'check-news',
6083 'SUBDIRS' => !! var ('SUBDIRS'),
6084 'TOPDIR' => backname ($relative_dir),
6085 'TOPDIR_P' => $relative_dir eq '.',
6087 'BUILD' => $seen_canonical == AC_CANONICAL_SYSTEM,
6088 'HOST' => $seen_canonical,
6089 'TARGET' => $seen_canonical == AC_CANONICAL_SYSTEM,
6091 'LIBTOOL' => !! var ('LIBTOOL'),
6093 'FIRST' => ! $transformed_files{$file},
6095 # We don't need more than two consecutive new-lines.
6096 . 's/\n{3,}/\n\n/g';
6098 $transformed_files{$file} = 1;
6100 # Swallow the file and apply the COMMAND.
6101 my $fc_file = new Automake::XFile "< $file";
6103 verb "reading $file";
6104 my $saved_dollar_slash = $/;
6106 $_ = $fc_file->getline;
6107 $/ = $saved_dollar_slash;
6112 # Split at unescaped new lines.
6113 my @lines = split (/(?<!\\)\n/, $content);
6116 while (defined ($_ = shift @lines))
6118 my $paragraph = "$_";
6119 # If we are a rule, eat as long as we start with a tab.
6120 if (/$RULE_PATTERN/smo)
6122 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6124 $paragraph .= "\n$_";
6126 unshift (@lines, $_);
6129 # If we are a comments, eat as much comments as you can.
6130 elsif (/$COMMENT_PATTERN/smo)
6132 while (defined ($_ = shift @lines)
6133 && $_ =~ /$COMMENT_PATTERN/smo)
6135 $paragraph .= "\n$_";
6137 unshift (@lines, $_);
6140 push @res, $paragraph;
6149 # ($COMMENT, $VARIABLES, $RULES)
6150 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6151 # -------------------------------------------------------------
6152 # Return contents of a file from $libdir/am, automatically skipping
6153 # macros or rules which are already known. $IS_AM iff the caller is
6154 # reading an Automake file (as opposed to the user's Makefile.am).
6155 sub file_contents_internal ($$$%)
6157 my ($is_am, $file, $where, %transform) = @_;
6159 $where->set ($file);
6161 my $result_vars = '';
6162 my $result_rules = '';
6166 # The following flags are used to track rules spanning across
6167 # multiple paragraphs.
6168 my $is_rule = 0; # 1 if we are processing a rule.
6169 my $discard_rule = 0; # 1 if the current rule should not be output.
6171 # We save the conditional stack on entry, and then check to make
6172 # sure it is the same on exit. This lets us conditionally include
6174 my @saved_cond_stack = @cond_stack;
6175 my $cond = new Automake::Condition (@cond_stack);
6177 foreach (make_paragraphs ($file, %transform))
6179 # FIXME: no line number available.
6180 $where->set ($file);
6183 error $where, "blank line following trailing backslash:\n$_"
6185 error $where, "comment following trailing backslash:\n$_"
6191 # Stick empty line before the incoming macro or rule.
6194 elsif (/$COMMENT_PATTERN/mso)
6197 # Stick comments before the incoming macro or rule.
6201 # Handle inclusion of other files.
6202 elsif (/$INCLUDE_PATTERN/o)
6206 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6207 $where->push_context ("`$file' included from here");
6209 my ($com, $vars, $rules)
6210 = file_contents_internal ($is_am, $file, $where, %transform);
6211 $where->pop_context;
6213 $result_vars .= $vars;
6214 $result_rules .= $rules;
6218 # Handling the conditionals.
6219 elsif (/$IF_PATTERN/o)
6221 $cond = cond_stack_if ($1, $2, $file);
6223 elsif (/$ELSE_PATTERN/o)
6225 $cond = cond_stack_else ($1, $2, $file);
6227 elsif (/$ENDIF_PATTERN/o)
6229 $cond = cond_stack_endif ($1, $2, $file);
6233 elsif (/$RULE_PATTERN/mso)
6237 # Separate relationship from optional actions: the first
6238 # `new-line tab" not preceded by backslash (continuation
6241 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6242 my ($relationship, $actions) = ($1, $2 || '');
6244 # Separate targets from dependencies: the first colon.
6245 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6246 my ($targets, $dependencies) = ($1, $2);
6247 # Remove the escaped new lines.
6248 # I don't know why, but I have to use a tmp $flat_deps.
6249 my $flat_deps = &flatten ($dependencies);
6250 my @deps = split (' ', $flat_deps);
6252 foreach (split (' ' , $targets))
6254 # FIXME: 1. We are not robust to people defining several targets
6255 # at once, only some of them being in %dependencies. The
6256 # actions from the targets in %dependencies are usually generated
6257 # from the content of %actions, but if some targets in $targets
6258 # are not in %dependencies the ELSE branch will output
6259 # a rule for all $targets (i.e. the targets which are both
6260 # in %dependencies and $targets will have two rules).
6262 # FIXME: 2. The logic here is not able to output a
6263 # multi-paragraph rule several time (e.g. for each condition
6264 # it is defined for) because it only knows the first paragraph.
6266 # FIXME: 3. We are not robust to people defining a subset
6267 # of a previously defined "multiple-target" rule. E.g.
6268 # `foo:' after `foo bar:'.
6270 # Output only if not in FALSE.
6271 if (defined $dependencies{$_} && $cond != FALSE)
6273 &depend ($_, @deps);
6276 $actions{$_} .= "\n$actions" if $actions;
6280 $actions{$_} = $actions;
6285 # Free-lance dependency. Output the rule for all the
6286 # targets instead of one by one.
6287 my @undefined_conds =
6288 Automake::Rule::define ($targets, $file,
6289 $is_am ? RULE_AUTOMAKE : RULE_USER,
6291 for my $undefined_cond (@undefined_conds)
6293 my $condparagraph = $paragraph;
6294 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6295 $result_rules .= "$spacing$comment$condparagraph\n";
6297 if (scalar @undefined_conds == 0)
6299 # Remember to discard next paragraphs
6300 # if they belong to this rule.
6301 # (but see also FIXME: #2 above.)
6304 $comment = $spacing = '';
6310 elsif (/$ASSIGNMENT_PATTERN/mso)
6312 my ($var, $type, $val) = ($1, $2, $3);
6313 error $where, "variable `$var' with trailing backslash"
6318 Automake::Variable::define ($var,
6319 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6320 $type, $cond, $val, $comment, $where,
6324 $comment = $spacing = '';
6328 # This isn't an error; it is probably some tokens which
6329 # configure is supposed to replace, such as `@SET-MAKE@',
6330 # or some part of a rule cut by an if/endif.
6331 if (! $cond->false && ! ($is_rule && $discard_rule))
6333 s/^/$cond->subst_string/gme;
6334 $result_rules .= "$spacing$comment$_\n";
6336 $comment = $spacing = '';
6340 error ($where, @cond_stack ?
6341 "unterminated conditionals: @cond_stack" :
6342 "too many conditionals closed in include file")
6343 if "@saved_cond_stack" ne "@cond_stack";
6345 return ($comment, $result_vars, $result_rules);
6350 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6351 # ------------------------------------------------
6352 # Return contents of a file from $libdir/am, automatically skipping
6353 # macros or rules which are already known.
6354 sub file_contents ($$%)
6356 my ($basename, $where, %transform) = @_;
6357 my ($comments, $variables, $rules) =
6358 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6360 return "$comments$variables$rules";
6365 # &transform (%PAIRS)
6366 # -------------------
6367 # For each ($TOKEN, $VAL) in %PAIRS produce a replacement expression
6368 # suitable for file_contents which:
6369 # - replaces %$TOKEN% with $VAL,
6370 # - enables/disables ?$TOKEN? and ?!$TOKEN?,
6371 # - replaces %?$TOKEN% with TRUE or FALSE.
6377 while (my ($token, $val) = each %pairs)
6379 $result .= "s/\Q%$token%\E/\Q$val\E/gm;";
6382 $result .= "s/\Q?$token?\E//gm;s/^.*\Q?!$token?\E.*\\n//gm;";
6383 $result .= "s/\Q%?$token%\E/TRUE/gm;";
6387 $result .= "s/\Q?!$token?\E//gm;s/^.*\Q?$token?\E.*\\n//gm;";
6388 $result .= "s/\Q%?$token%\E/FALSE/gm;";
6396 # &append_exeext ($MACRO)
6397 # -----------------------
6398 # Macro is an Automake magic macro which primary is PROGRAMS, e.g.
6399 # bin_PROGRAMS. Make sure these programs have $(EXEEXT) appended.
6400 sub append_exeext ($)
6404 prog_error "append_exeext ($macro)"
6405 unless $macro =~ /_PROGRAMS$/;
6407 transform_variable_recursively
6408 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
6410 my ($subvar, $val, $cond, $full_cond) = @_;
6411 # Append $(EXEEXT) unless the user did it already, or it's a
6413 $val .= '$(EXEEXT)' unless $val =~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/;
6420 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6421 # -----------------------------------------------------
6422 # Find all variable prefixes that are used for install directories. A
6423 # prefix `zar' qualifies iff:
6425 # * `zardir' is a variable.
6426 # * `zar_PRIMARY' is a variable.
6428 # As a side effect, it looks for misspellings. It is an error to have
6429 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6430 # "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
6431 # of the same name (with "dir" appended) exists. For instance, if the
6432 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6433 # This is to provide a little extra flexibility in those cases which
6435 sub am_primary_prefixes ($$@)
6437 my ($primary, $can_dist, @prefixes) = @_;
6440 my %valid = map { $_ => 0 } @prefixes;
6441 $valid{'EXTRA'} = 0;
6442 foreach my $var (variables)
6444 # Automake is allowed to define variables that look like primaries
6445 # but which aren't. E.g. INSTALL_sh_DATA.
6446 # Autoconf can also define variables like INSTALL_DATA, so
6447 # ignore all configure variables (at least those which are not
6448 # redefined in Makefile.am).
6449 # FIXME: We should make sure that these variables are not
6450 # conditionally defined (or else adjust the condition below).
6451 my $def = $var->def (TRUE);
6452 next if $def && $def->owner != VAR_MAKEFILE;
6454 my $varname = $var->name;
6456 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_$primary$/)
6458 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6459 if ($dist ne '' && ! $can_dist)
6462 "invalid variable `$varname': `dist' is forbidden");
6464 # Standard directories must be explicitly allowed.
6465 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6468 "`${X}dir' is not a legitimate directory " .
6471 # A not explicitly valid directory is allowed if Xdir is defined.
6472 elsif (! defined $valid{$X} &&
6473 $var->requires_variables ("`$varname' is used", "${X}dir"))
6475 # Nothing to do. Any error message has been output
6476 # by $var->requires_variables.
6480 # Ensure all extended prefixes are actually used.
6481 $valid{"$base$dist$X"} = 1;
6486 # Return only those which are actually defined.
6487 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6491 # Handle `where_HOW' variable magic. Does all lookups, generates
6492 # install code, and possibly generates code to define the primary
6493 # variable. The first argument is the name of the .am file to munge,
6494 # the second argument is the primary variable (e.g. HEADERS), and all
6495 # subsequent arguments are possible installation locations.
6497 # Returns list of [$location, $value] pairs, where
6498 # $value's are the values in all where_HOW variable, and $location
6499 # there associated location (the place here their parent variables were
6502 # FIXME: this should be rewritten to be cleaner. It should be broken
6503 # up into multiple functions.
6505 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6512 my $default_dist = 0;
6515 if ($args[0] eq '-noextra')
6519 elsif ($args[0] eq '-candist')
6523 elsif ($args[0] eq '-defaultdist')
6528 elsif ($args[0] !~ /^-/)
6535 my ($file, $primary, @prefix) = @args;
6537 # Now that configure substitutions are allowed in where_HOW
6538 # variables, it is an error to actually define the primary. We
6539 # allow `JAVA', as it is customarily used to mean the Java
6540 # interpreter. This is but one of several Java hacks. Similarly,
6541 # `PYTHON' is customarily used to mean the Python interpreter.
6542 reject_var $primary, "`$primary' is an anachronism"
6543 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
6545 # Get the prefixes which are valid and actually used.
6546 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
6548 # If a primary includes a configure substitution, then the EXTRA_
6549 # form is required. Otherwise we can't properly do our job.
6555 foreach my $X (@prefix)
6557 my $nodir_name = $X;
6558 my $one_name = $X . '_' . $primary;
6559 my $one_var = var $one_name;
6561 my $strip_subdir = 1;
6562 # If subdir prefix should be preserved, do so.
6563 if ($nodir_name =~ /^nobase_/)
6566 $nodir_name =~ s/^nobase_//;
6569 # If files should be distributed, do so.
6573 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
6574 || (! $default_dist && $nodir_name =~ /^dist_/));
6575 $nodir_name =~ s/^(dist|nodist)_//;
6579 # Use the location of the currently processed variable.
6580 # We are not processing a particular condition, so pick the first
6582 my $tmpcond = $one_var->conditions->one_cond;
6583 my $where = $one_var->rdef ($tmpcond)->location->clone;
6585 # Append actual contents of where_PRIMARY variable to
6586 # @result, skipping @substitutions@.
6587 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
6589 my ($loc, $value) = @$locvals;
6590 # Skip configure substitutions.
6591 if ($value =~ /^\@.*\@$/)
6593 if ($nodir_name eq 'EXTRA')
6596 "`$one_name' contains configure substitution, "
6599 # Check here to make sure variables defined in
6600 # configure.ac do not imply that EXTRA_PRIMARY
6602 elsif (! defined $configure_vars{$one_name})
6604 $require_extra = $one_name
6610 push (@result, $locvals);
6613 # A blatant hack: we rewrite each _PROGRAMS primary to include
6615 append_exeext ($one_name)
6616 if $primary eq 'PROGRAMS';
6617 # "EXTRA" shouldn't be used when generating clean targets,
6618 # all, or install targets. We used to warn if EXTRA_FOO was
6619 # defined uselessly, but this was annoying.
6621 if $nodir_name eq 'EXTRA';
6623 if ($nodir_name eq 'check')
6625 push (@check, '$(' . $one_name . ')');
6629 push (@used, '$(' . $one_name . ')');
6632 # Is this to be installed?
6633 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
6635 # If so, with install-exec? (or install-data?).
6636 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
6638 my $check_options_p = $install_p && !! option 'std-options';
6640 # Use the location of the currently processed variable as context.
6641 $where->push_context ("while processing `$one_name'");
6643 # The variable containing all file to distribute.
6644 my $distvar = "\$($one_name)";
6645 $distvar = shadow_unconditionally ($one_name, $where)
6646 if ($dist_p && $one_var->has_conditional_contents);
6648 # Singular form of $PRIMARY.
6649 (my $one_primary = $primary) =~ s/S$//;
6650 $output_rules .= &file_contents ($file, $where,
6651 PRIMARY => $primary,
6652 ONE_PRIMARY => $one_primary,
6654 NDIR => $nodir_name,
6655 BASE => $strip_subdir,
6658 INSTALL => $install_p,
6660 DISTVAR => $distvar,
6661 'CK-OPTS' => $check_options_p);
6664 # The JAVA variable is used as the name of the Java interpreter.
6665 # The PYTHON variable is used as the name of the Python interpreter.
6666 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
6669 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
6670 $output_vars .= "\n";
6673 err_var ($require_extra,
6674 "`$require_extra' contains configure substitution,\n"
6675 . "but `EXTRA_$primary' not defined")
6676 if ($require_extra && ! var ('EXTRA_' . $primary));
6678 # Push here because PRIMARY might be configure time determined.
6679 push (@all, '$(' . $primary . ')')
6680 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
6682 # Make the result unique. This lets the user use conditionals in
6683 # a natural way, but still lets us program lazily -- we don't have
6684 # to worry about handling a particular object more than once.
6685 # We will keep only one location per object.
6687 for my $pair (@result)
6689 my ($loc, $val) = @$pair;
6690 $result{$val} = $loc;
6692 my @l = sort keys %result;
6693 return map { [$result{$_}->clone, $_] } @l;
6697 ################################################################
6699 # Each key in this hash is the name of a directory holding a
6700 # Makefile.in. These variables are local to `is_make_dir'.
6702 my $make_dirs_set = 0;
6707 if (! $make_dirs_set)
6709 foreach my $iter (@configure_input_files)
6711 $make_dirs{dirname ($iter)} = 1;
6713 # We also want to notice Makefile.in's.
6714 foreach my $iter (@other_input_files)
6716 if ($iter =~ /Makefile\.in$/)
6718 $make_dirs{dirname ($iter)} = 1;
6723 return defined $make_dirs{$dir};
6726 ################################################################
6728 # Find the aux dir. This should match the algorithm used by
6729 # ./configure. (See the Autoconf documentation for for
6730 # AC_CONFIG_AUX_DIR.)
6731 sub locate_aux_dir ()
6733 if (! $config_aux_dir_set_in_configure_ac)
6735 # The default auxiliary directory is the first
6736 # of ., .., or ../.. that contains install-sh.
6737 # Assume . if install-sh doesn't exist yet.
6738 for my $dir (qw (. .. ../..))
6740 if (-f "$dir/install-sh")
6742 $config_aux_dir = $dir;
6746 $config_aux_dir = '.' unless $config_aux_dir;
6748 # Avoid unsightly '/.'s.
6749 $am_config_aux_dir =
6750 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
6751 $am_config_aux_dir =~ s,/*$,,;
6755 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
6756 # --------------------------------------------------
6757 # See if we want to push this file onto dist_common. This function
6758 # encodes the rules for deciding when to do so.
6759 sub maybe_push_required_file
6761 my ($dir, $file, $fullfile) = @_;
6763 if ($dir eq $relative_dir)
6765 push_dist_common ($file);
6768 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
6770 # If we are doing the topmost directory, and the file is in a
6771 # subdir which does not have a Makefile, then we distribute it
6774 # If a required file is above the source tree, it is important
6775 # to prefix it with `$(srcdir)' so that no VPATH search is
6776 # performed. Otherwise problems occur with Make implementations
6777 # that rewrite and simplify rules whose dependencies are found in a
6778 # VPATH location. Here is an example with OSF1/Tru64 Make.
6790 # Dependency `../a' was found in `sub/../a', but this make
6791 # implementation simplified it as `a'. (Note that the sub/
6792 # directory does not even exist.)
6794 # This kind of VPATH rewriting seems hard to cancel. The
6795 # distdir.am hack against VPATH rewriting works only when no
6796 # simplification is done, i.e., for dependencies which are in
6797 # subdirectories, not in enclosing directories. Hence, in
6798 # the latter case we use a full path to make sure no VPATH
6800 $fullfile = '$(srcdir)/' . $fullfile
6801 if $dir =~ m,^\.\.(?:$|/),;
6803 push_dist_common ($fullfile);
6810 # If a file name appears as a key in this hash, then it has already
6811 # been checked for. This allows us not to report the same error more
6813 my %required_file_not_found = ();
6815 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
6816 # --------------------------------------------------------------
6817 # Verify that the file must exist in $DIRECTORY, or install it.
6818 # $MYSTRICT is the strictness level at which this file becomes required.
6819 sub require_file_internal ($$$@)
6821 my ($where, $mystrict, $dir, @files) = @_;
6823 foreach my $file (@files)
6825 my $fullfile = "$dir/$file";
6827 my $dangling_sym = 0;
6829 if (-l $fullfile && ! -f $fullfile)
6833 elsif (-f $fullfile)
6836 maybe_push_required_file ($dir, $file, $fullfile);
6839 # `--force-missing' only has an effect if `--add-missing' is
6841 if ($found_it && (! $add_missing || ! $force_missing))
6847 # If we've already looked for it, we're done. You might
6848 # wonder why we don't do this before searching for the
6849 # file. If we do that, then something like
6850 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
6854 next if defined $required_file_not_found{$fullfile};
6855 $required_file_not_found{$fullfile} = 1;
6858 if ($strictness >= $mystrict)
6860 if ($dangling_sym && $add_missing)
6868 # Only install missing files according to our desired
6870 my $message = "required file `$fullfile' not found";
6873 if (-f ("$libdir/$file"))
6877 # Install the missing file. Symlink if we
6878 # can, copy if we must. Note: delete the file
6879 # first, in case it is a dangling symlink.
6880 $message = "installing `$fullfile'";
6881 # Windows Perl will hang if we try to delete a
6882 # file that doesn't exist.
6883 unlink ($fullfile) if -f $fullfile;
6884 if ($symlink_exists && ! $copy_missing)
6886 if (! symlink ("$libdir/$file", $fullfile))
6889 $trailer = "; error while making link: $!";
6892 elsif (system ('cp', "$libdir/$file", $fullfile))
6895 $trailer = "\n error while copying";
6899 if (! maybe_push_required_file (dirname ($fullfile),
6902 if (! $found_it && ! $automake_will_process_aux_dir)
6904 # We have added the file but could not push it
6905 # into DIST_COMMON, probably because this is
6906 # an auxiliary file and we are not processing
6907 # the top level Makefile. Furthermore Automake
6908 # hasn't been asked to create the Makefile.in
6909 # that distribute the aux dir files.
6910 error ($where, 'Please make a full run of automake'
6911 . " so $fullfile gets distributed.");
6916 # If --force-missing was specified, and we have
6917 # actually found the file, then do nothing.
6919 if $found_it && $force_missing;
6921 # If we couldn' install the file, but it is a target in
6922 # the Makefile, don't print anything. This allows files
6923 # like README, AUTHORS, or THANKS to be generated.
6925 if !$suppress && rule $file;
6927 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
6933 # &require_file ($WHERE, $MYSTRICT, @FILES)
6934 # -----------------------------------------
6935 sub require_file ($$@)
6937 my ($where, $mystrict, @files) = @_;
6938 require_file_internal ($where, $mystrict, $relative_dir, @files);
6941 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
6942 # -----------------------------------------------------------
6943 sub require_file_with_macro ($$$@)
6945 my ($cond, $macro, $mystrict, @files) = @_;
6946 $macro = rvar ($macro) unless ref $macro;
6947 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
6951 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
6952 # ----------------------------------------------
6953 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
6954 sub require_conf_file ($$@)
6956 my ($where, $mystrict, @files) = @_;
6957 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
6961 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
6962 # ----------------------------------------------------------------
6963 sub require_conf_file_with_macro ($$$@)
6965 my ($cond, $macro, $mystrict, @files) = @_;
6966 require_conf_file (rvar ($macro)->rdef ($cond)->location,
6970 ################################################################
6972 # &require_build_directory ($DIRECTORY)
6973 # ------------------------------------
6974 # Emit rules to create $DIRECTORY if needed, and return
6975 # the file that any target requiring this directory should be made
6977 sub require_build_directory ($)
6979 my $directory = shift;
6980 my $dirstamp = "$directory/\$(am__dirstamp)";
6982 # Don't emit the rule twice.
6983 if (! defined $directory_map{$directory})
6985 $directory_map{$directory} = 1;
6987 # Set a variable for the dirstamp basename.
6988 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
6989 '$(am__leading_dot)dirstamp');
6991 # Directory must be removed by `make distclean'.
6992 $clean_files{$dirstamp} = DIST_CLEAN;
6994 $output_rules .= ("$dirstamp:\n"
6995 . "\t\@\$(mkdir_p) $directory\n"
6996 . "\t\@: > $dirstamp\n");
7002 # &require_build_directory_maybe ($FILE)
7003 # --------------------------------------
7004 # If $FILE lies in a subdirectory, emit a rule to create this
7005 # directory and return the file that $FILE should be made
7006 # dependent upon. Otherwise, just return the empty string.
7007 sub require_build_directory_maybe ($)
7010 my $directory = dirname ($file);
7012 if ($directory ne '.')
7014 return require_build_directory ($directory);
7022 ################################################################
7024 # Push a list of files onto dist_common.
7025 sub push_dist_common
7027 prog_error "push_dist_common run after handle_dist"
7028 if $handle_dist_run;
7029 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7030 '', INTERNAL, VAR_PRETTY);
7034 ################################################################
7036 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7037 # ----------------------------------------------
7038 # Generate a Makefile.in given the name of the corresponding Makefile and
7039 # the name of the file output by config.status.
7040 sub generate_makefile ($$)
7042 my ($makefile_am, $makefile_in) = @_;
7044 # Reset all the Makefile.am related variables.
7045 initialize_per_input;
7047 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7048 # warnings for this file. So hold any warning issued before
7049 # we have processed AUTOMAKE_OPTIONS.
7050 buffer_messages ('warning');
7052 # Name of input file ("Makefile.am") and output file
7053 # ("Makefile.in"). These have no directory components.
7054 $am_file_name = basename ($makefile_am);
7055 $in_file_name = basename ($makefile_in);
7057 # $OUTPUT is encoded. If it contains a ":" then the first element
7058 # is the real output file, and all remaining elements are input
7059 # files. We don't scan or otherwise deal with these input files,
7060 # other than to mark them as dependencies. See
7061 # &scan_autoconf_files for details.
7062 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7064 $relative_dir = dirname ($makefile);
7065 $am_relative_dir = dirname ($makefile_am);
7067 read_main_am_file ($makefile_am);
7070 # Process buffered warnings.
7072 # Fatal error. Just return, so we can continue with next file.
7075 # Process buffered warnings.
7078 # There are a few install-related variables that you should not define.
7079 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7084 my $def = $v->def (TRUE);
7085 prog_error "$var not defined in condition TRUE"
7087 reject_var $var, "`$var' should not be defined"
7088 if $def->owner != VAR_AUTOMAKE;
7092 # Catch some obsolete variables.
7093 msg_var ('obsolete', 'INCLUDES',
7094 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
7095 if var ('INCLUDES');
7097 # At the toplevel directory, we might need config.guess, config.sub
7098 # or libtool scripts (ltconfig and ltmain.sh).
7099 if ($relative_dir eq '.')
7101 # AC_CANONICAL_HOST and AC_CANONICAL_SYSTEM need config.guess and
7103 require_conf_file ($canonical_location, FOREIGN,
7104 'config.guess', 'config.sub')
7108 # Must do this after reading .am file.
7109 define_variable ('subdir', $relative_dir, INTERNAL);
7111 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7112 # recursive rules are enabled.
7113 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7114 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7116 # Check first, because we might modify some state.
7118 check_gnu_standards;
7119 check_gnits_standards;
7121 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7128 # These must be run after all the sources are scanned. They
7129 # use variables defined by &handle_libraries, &handle_ltlibraries,
7130 # or &handle_programs.
7135 # Variables used by distdir.am and tags.am.
7136 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7137 if (! option 'no-dist')
7139 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7152 handle_minor_options;
7155 # This must come after most other rules.
7159 do_check_merge_target;
7160 handle_all ($makefile);
7163 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7165 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7169 handle_clean ($makefile);
7170 handle_factored_dependencies;
7172 # Comes last, because all the above procedures may have
7173 # defined or overridden variables.
7174 $output_vars .= output_variables;
7178 my ($out_file) = $output_directory . '/' . $makefile_in;
7180 if ($exit_code != 0)
7182 verb "not writing $out_file because of earlier errors";
7186 if (! -d ($output_directory . '/' . $am_relative_dir))
7188 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
7191 # We make sure that `all:' is the first target.
7193 "$output_vars$output_all$output_header$output_rules$output_trailer";
7195 # Decide whether we must update the output file or not.
7196 # We have to update in the following situations.
7197 # * $force_generation is set.
7198 # * any of the output dependencies is younger than the output
7199 # * the contents of the output is different (this can happen
7200 # if the project has been populated with a file listed in
7201 # @common_files since the last run).
7202 # Output's dependencies are split in two sets:
7203 # * dependencies which are also configure dependencies
7204 # These do not change between each Makefile.am
7205 # * other dependencies, specific to the Makefile.am being processed
7206 # (such as the Makefile.am itself, or any Makefile fragment
7208 my $timestamp = mtime $out_file;
7209 if (! $force_generation
7210 && $configure_deps_greatest_timestamp < $timestamp
7211 && $output_deps_greatest_timestamp < $timestamp
7212 && $output eq contents ($out_file))
7214 verb "$out_file unchanged";
7215 # No need to update.
7222 or fatal "cannot remove $out_file: $!\n";
7225 my $gm_file = new Automake::XFile "> $out_file";
7226 verb "creating $out_file";
7227 print $gm_file $output;
7230 ################################################################
7235 ################################################################
7237 # Print usage information.
7240 print "Usage: $0 [OPTION] ... [Makefile]...
7242 Generate Makefile.in for configure from Makefile.am.
7245 --help print this help, then exit
7246 --version print version number, then exit
7247 -v, --verbose verbosely list files processed
7248 --no-force only update Makefile.in's that are out of date
7249 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
7251 Dependency tracking:
7252 -i, --ignore-deps disable dependency tracking code
7253 --include-deps enable dependency tracking code
7256 --cygnus assume program is part of Cygnus-style tree
7257 --foreign set strictness to foreign
7258 --gnits set strictness to gnits
7259 --gnu set strictness to gnu
7262 -a, --add-missing add missing standard files to package
7263 --libdir=DIR directory storing library files
7264 -c, --copy with -a, copy missing files (default is symlink)
7265 -f, --force-missing force update of standard files
7268 Automake::ChannelDefs::usage;
7272 foreach my $iter (sort ((@common_files, @common_sometimes)))
7274 push (@lcomm, $iter) unless $iter eq $last;
7279 print "\nFiles which are automatically distributed, if found:\n";
7280 format USAGE_FORMAT =
7281 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7282 $four[0], $four[1], $four[2], $four[3]
7284 $~ = "USAGE_FORMAT";
7287 my $rows = int(@lcomm / $cols);
7288 my $rest = @lcomm % $cols;
7299 for (my $y = 0; $y < $rows; $y++)
7301 @four = ("", "", "", "");
7302 for (my $x = 0; $x < $cols; $x++)
7304 last if $y + 1 == $rows && $x == $rest;
7306 my $idx = (($x > $rest)
7307 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
7311 $four[$x] = $lcomm[$idx];
7316 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
7318 # --help always returns 0 per GNU standards.
7325 # Print version information
7329 automake (GNU $PACKAGE) $VERSION
7330 Written by Tom Tromey <tromey\@redhat.com>.
7332 Copyright 2004 Free Software Foundation, Inc.
7333 This is free software; see the source for copying conditions. There is NO
7334 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7336 # --version always returns 0 per GNU standards.
7340 ################################################################
7342 # Parse command line.
7343 sub parse_arguments ()
7346 set_strictness ('gnu');
7348 my $cli_where = new Automake::Location;
7351 'libdir:s' => \$libdir,
7352 'gnu' => sub { set_strictness ('gnu'); },
7353 'gnits' => sub { set_strictness ('gnits'); },
7354 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
7355 'foreign' => sub { set_strictness ('foreign'); },
7356 'include-deps' => sub { unset_global_option ('no-dependencies'); },
7357 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
7359 'no-force' => sub { $force_generation = 0; },
7360 'f|force-missing' => \$force_missing,
7361 'o|output-dir:s' => \$output_directory,
7362 'a|add-missing' => \$add_missing,
7363 'c|copy' => \$copy_missing,
7364 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
7365 'W|warnings:s' => \&parse_warnings,
7366 # These long options (--Werror and --Wno-error) for backward
7367 # compatibility. Use -Werror and -Wno-error today.
7368 'Werror' => sub { parse_warnings 'W', 'error'; },
7369 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
7372 Getopt::Long::config ("bundling", "pass_through");
7374 # See if --version or --help is used. We want to process these before
7375 # anything else because the GNU Coding Standards require us to
7376 # `exit 0' after processing these options, and we can't guarantee this
7377 # if we treat other options first. (Handling other options first
7378 # could produce error diagnostics, and in this condition it is
7379 # confusing if Automake does `exit 0'.)
7380 my %cli_options_1st_pass =
7382 'version' => \&version,
7384 # Recognize all other options (and their arguments) but do nothing.
7385 map { $_ => sub {} } (keys %cli_options)
7387 my @ARGV_backup = @ARGV;
7388 Getopt::Long::GetOptions %cli_options_1st_pass
7390 @ARGV = @ARGV_backup;
7392 # Now *really* process the options. This time we know
7393 # that --help and --version are not present.
7394 Getopt::Long::GetOptions %cli_options
7397 if (defined $output_directory)
7399 msg 'obsolete', "`--output-dir' is deprecated\n";
7403 # In the next release we'll remove this entirely.
7404 $output_directory = '.';
7408 foreach my $arg (@ARGV)
7412 fatal ("unrecognized option `$arg'\n"
7413 . "Try `$0 --help' for more information.");
7416 # Handle $local:$input syntax.
7417 my ($local, @rest) = split (/:/, $arg);
7418 @rest = ("$local.in",) unless @rest;
7419 my $input = locate_am @rest;
7422 push @input_files, $input;
7423 $output_files{$input} = join (':', ($local, @rest));
7427 error "no Automake input file found for `$arg'";
7431 fatal "no input file found among supplied arguments"
7432 if $errspec && ! @input_files;
7435 ################################################################
7437 # Parse the WARNINGS environment variable.
7440 # Parse command line.
7443 $configure_ac = require_configure_ac;
7445 # Do configure.ac scan only once.
7446 scan_autoconf_files;
7451 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
7452 if -f 'Makefile.am';
7453 fatal ("no `Makefile.am' found for any configure output$msg");
7456 # Now do all the work on each file.
7457 foreach my $file (@input_files)
7459 ($am_file = $file) =~ s/\.in$//;
7460 if (! -f ($am_file . '.am'))
7462 error "`$am_file.am' does not exist";
7466 # Any warning setting now local to this Makefile.am.
7469 generate_makefile ($am_file . '.am', $file);
7471 # Back out any warning setting.
7479 ### Setup "GNU" style for perl-mode and cperl-mode.
7481 ## perl-indent-level: 2
7482 ## perl-continued-statement-offset: 2
7483 ## perl-continued-brace-offset: 0
7484 ## perl-brace-offset: 0
7485 ## perl-brace-imaginary-offset: 0
7486 ## perl-label-offset: -2
7487 ## cperl-indent-level: 2
7488 ## cperl-brace-offset: 0
7489 ## cperl-continued-brace-offset: 0
7490 ## cperl-label-offset: -2
7491 ## cperl-extra-newline-before-brace: t
7492 ## cperl-merge-trailing-else: nil
7493 ## cperl-continued-statement-offset: 2