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) 1994-2012 Free Software Foundation, Inc.
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2, or (at your option)
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program. If not, see <http://www.gnu.org/licenses/>.
24 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
25 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
26 # Alexandre Duret-Lutz <adl@gnu.org>.
32 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
33 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
35 # Override SHELL. This is required on DJGPP so that system() uses
36 # bash, not COMMAND.COM which doesn't quote arguments properly.
37 # Other systems aren't expected to use $SHELL when Automake
38 # runs, but it should be safe to drop the "if DJGPP" guard if
39 # it turns up other systems need the same thing. After all,
40 # if SHELL is used, ./configure's SHELL is always better than
41 # the user's SHELL (which may be something like tcsh).
42 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
46 Class::Struct::struct (
47 # Short name of the language (c, f77...).
49 # Nice name of the language (C, Fortran 77...).
52 # List of configure variables which must be defined.
55 # 'pure' is '1' or ''. A 'pure' language is one where, if
56 # all the files in a directory are of that language, then we
57 # do not require the C compiler or any code to call it.
62 # Name of the compiling variable (COMPILE).
64 # Content of the compiling variable.
66 # Flag to require compilation without linking (-c).
67 'compile_flag' => "\$",
69 # A subroutine to compute a list of possible extensions of
70 # the product given the input extensions.
71 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
72 'output_extensions' => "\$",
73 # A list of flag variables used in 'compile'.
77 # Any tag to pass to libtool while compiling.
78 'libtool_tag' => "\$",
80 # The file to use when generating rules for this language.
81 # The default is 'depend2'.
84 # Name of the linking variable (LINK).
86 # Content of the linking variable.
89 # Name of the compiler variable (CC).
92 # Name of the linker variable (LD).
94 # Content of the linker variable ($(CC)).
97 # Flag to specify the output file (-o).
98 'output_flag' => "\$",
101 # This is a subroutine which is called whenever we finally
102 # determine the context in which a source file will be
104 '_target_hook' => "\$",
106 # If TRUE, nodist_ sources will be compiled using specific rules
107 # (i.e. not inference rules). The default is FALSE.
108 'nodist_specific' => "\$");
114 if (defined $self->_finish)
116 &{$self->_finish} (@_);
120 sub target_hook ($$$$%)
123 if (defined $self->_target_hook)
125 &{$self->_target_hook} (@_);
132 use Automake::Config;
139 require Thread::Queue;
140 import Thread::Queue;
143 use Automake::General;
145 use Automake::Channels;
146 use Automake::ChannelDefs;
147 use Automake::Configure_ac;
148 use Automake::FileUtils;
149 use Automake::Location;
150 use Automake::Condition qw/TRUE FALSE/;
151 use Automake::DisjConditions;
152 use Automake::Options;
153 use Automake::Variable;
154 use Automake::VarDef;
156 use Automake::RuleDef;
157 use Automake::Wrap 'makefile_wrap';
166 # Some regular expressions. One reason to put them here is that it
167 # makes indentation work better in Emacs.
169 # Writing singled-quoted-$-terminated regexes is a pain because
170 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
171 # by a closing quote. Letting perl-mode think the quote is not closed
172 # leads to all sort of misindentations. On the other hand, defining
173 # regexes as double-quoted strings is far less readable. So usually
176 # $REGEX = '^regex_value' . "\$";
178 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
179 my $WHITE_PATTERN = '^\s*' . "\$";
180 my $COMMENT_PATTERN = '^#';
181 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
182 # A rule has three parts: a list of targets, a list of dependencies,
183 # and optionally actions.
185 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
187 # Only recognize leading spaces, not leading tabs. If we recognize
188 # leading tabs here then we need to make the reader smarter, because
189 # otherwise it will think rules like 'foo=bar; \' are errors.
190 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
191 # This pattern recognizes a Gnits version id and sets $1 if the
192 # release is an alpha release. We also allow a suffix which can be
193 # used to extend the version number with a "fork" identifier.
194 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
196 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
198 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
200 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
201 my $PATH_PATTERN = '(\w|[+/.-])+';
202 # This will pass through anything not of the prescribed form.
203 my $INCLUDE_PATTERN = ('^include\s+'
204 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
205 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
206 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
208 # Directories installed during 'install-exec' phase.
209 my $EXEC_DIR_PATTERN =
210 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
212 # Values for AC_CANONICAL_*
213 use constant AC_CANONICAL_BUILD => 1;
214 use constant AC_CANONICAL_HOST => 2;
215 use constant AC_CANONICAL_TARGET => 3;
217 # Values indicating when something should be cleaned.
218 use constant MOSTLY_CLEAN => 0;
219 use constant CLEAN => 1;
220 use constant DIST_CLEAN => 2;
221 use constant MAINTAINER_CLEAN => 3;
224 my @libtool_files = qw(ltmain.sh config.guess config.sub);
225 # ltconfig appears here for compatibility with old versions of libtool.
226 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
228 # Commonly found files we look for and automatically include in
231 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
232 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
233 ar-lib compile config.guess config.rpath
234 config.sub depcomp elisp-comp install-sh libversion.in mdate-sh
235 missing mkinstalldirs py-compile texinfo.tex ylwrap),
236 @libtool_files, @libtool_sometimes);
238 # Commonly used files we auto-include, but only sometimes. This list
239 # is used for the --help output only.
240 my @common_sometimes =
241 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
242 configure.ac configure.in stamp-vti);
244 # Standard directories from the GNU Coding Standards, and additional
245 # pkg* directories from Automake. Stored in a hash for fast member check.
246 my %standard_prefix =
247 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
248 lib libexec lisp locale localstate man man1 man2
249 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
250 pkgdata pkginclude pkglib pkglibexec ps sbin
251 sharedstate sysconf));
253 # Copyright on generated Makefile.ins.
254 my $gen_copyright = "\
255 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
257 # This Makefile.in is free software; the Free Software Foundation
258 # gives unlimited permission to copy and/or distribute it,
259 # with or without modifications, as long as this notice is preserved.
261 # This program is distributed in the hope that it will be useful,
262 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
263 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
264 # PARTICULAR PURPOSE.
267 # These constants are returned by the lang_*_rewrite functions.
268 # LANG_SUBDIR means that the resulting object file should be in a
269 # subdir if the source file is. In this case the file name cannot
270 # have '..' components.
271 use constant LANG_IGNORE => 0;
272 use constant LANG_PROCESS => 1;
273 use constant LANG_SUBDIR => 2;
275 # These are used when keeping track of whether an object can be built
276 # by two different paths.
277 use constant COMPILE_LIBTOOL => 1;
278 use constant COMPILE_ORDINARY => 2;
280 # We can't always associate a location to a variable or a rule,
281 # when it's defined by Automake. We use INTERNAL in this case.
282 use constant INTERNAL => new Automake::Location;
284 # Serialization keys for message queues.
285 use constant QUEUE_MESSAGE => "msg";
286 use constant QUEUE_CONF_FILE => "conf file";
287 use constant QUEUE_LOCATION => "location";
288 use constant QUEUE_STRING => "string";
290 ## ---------------------------------- ##
291 ## Variables related to the options. ##
292 ## ---------------------------------- ##
294 # TRUE if we should always generate Makefile.in.
295 my $force_generation = 1;
297 # From the Perl manual.
298 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
300 # TRUE if missing standard files should be installed.
303 # TRUE if we should copy missing files; otherwise symlink if possible.
304 my $copy_missing = 0;
306 # TRUE if we should always update files that we know about.
307 my $force_missing = 0;
310 ## ---------------------------------------- ##
311 ## Variables filled during files scanning. ##
312 ## ---------------------------------------- ##
314 # Name of the configure.ac file.
317 # Files found by scanning configure.ac for LIBOBJS.
320 # Names used in AC_CONFIG_HEADER call.
321 my @config_headers = ();
323 # Names used in AC_CONFIG_LINKS call.
324 my @config_links = ();
326 # List of Makefile.am's to process, and their corresponding outputs.
327 my @input_files = ();
328 my %output_files = ();
330 # Complete list of Makefile.am's that exist.
331 my @configure_input_files = ();
333 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
335 my @other_input_files = ();
336 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
337 # The keys are the files created by these macros.
338 my %ac_config_files_location = ();
339 # The condition under which AC_CONFIG_FOOS appears.
340 my %ac_config_files_condition = ();
342 # Directory to search for configure-required files. This
343 # will be computed by &locate_aux_dir and can be set using
344 # AC_CONFIG_AUX_DIR in configure.ac.
345 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
346 my $config_aux_dir = '';
347 my $config_aux_dir_set_in_configure_ac = 0;
348 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
350 my $am_config_aux_dir = '';
352 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
354 my $config_libobj_dir = '';
356 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
357 my $seen_gettext = 0;
358 # Whether AM_GNU_GETTEXT([external]) is used.
359 my $seen_gettext_external = 0;
360 # Where AM_GNU_GETTEXT appears.
361 my $ac_gettext_location;
362 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
363 my $seen_gettext_intl = 0;
365 # The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
366 my @extra_recursive_targets = ();
368 # Lists of tags supported by Libtool.
369 my %libtool_tags = ();
370 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
371 # uses AC_REQUIRE_AUX_FILE.
372 my $libtool_new_api = 0;
374 # Most important AC_CANONICAL_* macro seen so far.
375 my $seen_canonical = 0;
376 # Location of that macro.
377 my $canonical_location;
379 # Where AM_MAINTAINER_MODE appears.
382 # Actual version we've seen.
383 my $package_version = '';
385 # Where version is defined.
386 my $package_version_location;
388 # TRUE if we've seen AM_PROG_AR
391 # TRUE if we've seen AM_PROG_CC_C_O
394 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
395 my %required_aux_file = ();
397 # Where AM_INIT_AUTOMAKE is called;
398 my $seen_init_automake = 0;
400 # TRUE if we've seen AM_AUTOMAKE_VERSION.
401 my $seen_automake_version = 0;
403 # Hash table of discovered configure substitutions. Keys are names,
404 # values are 'FILE:LINE' strings which are used by error message
406 my %configure_vars = ();
408 # Ignored configure substitutions (i.e., variables not to be output in
410 my %ignored_configure_vars = ();
412 # Files included by $configure_ac.
413 my @configure_deps = ();
415 # Greatest timestamp of configure's dependencies.
416 my $configure_deps_greatest_timestamp = 0;
418 # Hash table of AM_CONDITIONAL variables seen in configure.
419 my %configure_cond = ();
421 # This maps extensions onto language names.
422 my %extension_map = ();
424 # List of the DIST_COMMON files we discovered while reading
426 my $configure_dist_common = '';
428 # This maps languages names onto objects.
430 # Maps each linker variable onto a language object.
431 my %link_languages = ();
433 # maps extensions to needed source flags.
434 my %sourceflags = ();
436 # List of targets we must always output.
437 # FIXME: Complete, and remove falsely required targets.
438 my %required_targets =
451 # FIXME: Not required, temporary hacks.
452 # Well, actually they are sort of required: the -recursive
453 # targets will run them anyway...
459 'install-data-am' => 1,
460 'install-exec-am' => 1,
461 'install-html-am' => 1,
462 'install-dvi-am' => 1,
463 'install-pdf-am' => 1,
464 'install-ps-am' => 1,
465 'install-info-am' => 1,
466 'installcheck-am' => 1,
470 'cscopelist-am' => 1,
474 # Queue to push require_conf_file requirements to.
475 my $required_conf_file_queue;
477 # The name of the Makefile currently being processed.
480 ################################################################
482 ## ------------------------------------------ ##
483 ## Variables reset by &initialize_per_input. ##
484 ## ------------------------------------------ ##
486 # Basename and relative dir of the input file.
490 # Same but wrt Makefile.in.
494 # Relative path to the top directory.
497 # Greatest timestamp of the output's dependencies (excluding
498 # configure's dependencies).
499 my $output_deps_greatest_timestamp;
501 # These variables are used when generating each Makefile.in.
502 # They hold the Makefile.in until it is ready to be printed.
509 # This is the conditional stack, updated on if/else/endif, and
510 # used to build Condition objects.
513 # This holds the set of included files.
516 # List of dependencies for the obvious targets.
521 # Keys in this hash table are files to delete. The associated
522 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
525 # Keys in this hash table are object files or other files in
526 # subdirectories which need to be removed. This only holds files
527 # which are created by compilations. The value in the hash indicates
528 # when the file should be removed.
529 my %compile_clean_files;
531 # Keys in this hash table are directories where we expect to build a
532 # libtool object. We use this information to decide what directories
534 my %libtool_clean_directories;
536 # Value of $(SOURCES), used by tags.am.
538 # Sources which go in the distribution.
541 # This hash maps object file names onto their corresponding source
542 # file names. This is used to ensure that each object is created
543 # by a single source file.
546 # This hash maps object file names onto an integer value representing
547 # whether this object has been built via ordinary compilation or
548 # libtool compilation (the COMPILE_* constants).
549 my %object_compilation_map;
552 # This keeps track of the directories for which we've already
553 # created dirstamp code. Keys are directories, values are stamp files.
554 # Several keys can share the same stamp files if they are equivalent
555 # (as are './/foo' and 'foo').
561 # This is a list of all targets to run during "make dist".
564 # Keep track of all programs declared in this Makefile, without
565 # $(EXEEXT). @substitutions@ are not listed.
569 # This keeps track of which extensions we've seen (that we care
573 # This is random scratch space for the language finish functions.
574 # Don't randomly overwrite it; examine other uses of keys first.
575 my %language_scratch;
577 # We keep track of which objects need special (per-executable)
578 # handling on a per-language basis.
579 my %lang_specific_files;
581 # This is set when 'handle_dist' has finished. Once this happens,
582 # we should no longer push on dist_common.
585 # Used to store a set of linkers needed to generate the sources currently
586 # under consideration.
589 # True if we need 'LINK' defined. This is a hack.
592 # Does the generated Makefile have to build some compiled object
593 # (for binary programs, or plain or libtool libraries)?
594 my $must_handle_compiled_objects;
596 # Record each file processed by make_paragraphs.
597 my %transformed_files;
599 ################################################################
601 ## ---------------------------------------------- ##
602 ## Variables not reset by &initialize_per_input. ##
603 ## ---------------------------------------------- ##
605 # Cache each file processed by make_paragraphs.
606 # (This is different from %transformed_files because
607 # %transformed_files is reset for each file while %am_file_cache
608 # it global to the run.)
611 ################################################################
613 # var_SUFFIXES_trigger ($TYPE, $VALUE)
614 # ------------------------------------
615 # This is called by Automake::Variable::define() when SUFFIXES
616 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
617 # The work here needs to be performed as a side-effect of the
618 # macro_define() call because SUFFIXES definitions impact
619 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
621 sub var_SUFFIXES_trigger ($$)
623 my ($type, $value) = @_;
624 accept_extensions (split (' ', $value));
626 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
628 ################################################################
630 ## --------------------------------- ##
631 ## Forward subroutine declarations. ##
632 ## --------------------------------- ##
633 sub register_language (%);
634 sub file_contents_internal ($$$%);
635 sub define_files_variable ($\@$$);
638 # &initialize_per_input ()
639 # ------------------------
640 # (Re)-Initialize per-Makefile.am variables.
641 sub initialize_per_input ()
643 reset_local_duplicates ();
645 $am_file_name = undef;
646 $am_relative_dir = undef;
648 $in_file_name = undef;
649 $relative_dir = undef;
652 $output_deps_greatest_timestamp = 0;
658 $output_trailer = '';
660 Automake::Options::reset;
661 Automake::Variable::reset;
662 Automake::Rule::reset;
673 %compile_clean_files = ();
675 # We always include '.'. This isn't strictly correct.
676 %libtool_clean_directories = ('.' => 1);
682 %object_compilation_map = ();
690 %known_programs = ();
691 %known_libraries= ();
693 %extension_seen = ();
695 %language_scratch = ();
697 %lang_specific_files = ();
699 $handle_dist_run = 0;
703 $must_handle_compiled_objects = 0;
705 %transformed_files = ();
709 ################################################################
711 # Initialize our list of languages that are internally supported.
714 register_language ('name' => 'c',
716 'config_vars' => ['CC'],
718 'flags' => ['CFLAGS', 'CPPFLAGS'],
720 'compiler' => 'COMPILE',
721 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
725 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
726 'compile_flag' => '-c',
727 'libtool_tag' => 'CC',
728 'extensions' => ['.c']);
731 register_language ('name' => 'cxx',
733 'config_vars' => ['CXX'],
734 'linker' => 'CXXLINK',
735 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
737 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
738 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
740 'compiler' => 'CXXCOMPILE',
741 'compile_flag' => '-c',
742 'output_flag' => '-o',
743 'libtool_tag' => 'CXX',
747 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
750 register_language ('name' => 'objc',
751 'Name' => 'Objective C',
752 'config_vars' => ['OBJC'],
753 'linker' => 'OBJCLINK',
754 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
756 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
757 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
759 'compiler' => 'OBJCCOMPILE',
760 'compile_flag' => '-c',
761 'output_flag' => '-o',
765 'extensions' => ['.m']);
768 register_language ('name' => 'objcxx',
769 'Name' => 'Objective C++',
770 'config_vars' => ['OBJCXX'],
771 'linker' => 'OBJCXXLINK',
772 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
773 'autodep' => 'OBJCXX',
774 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
775 'compile' => '$(OBJCXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS)',
777 'compiler' => 'OBJCXXCOMPILE',
778 'compile_flag' => '-c',
779 'output_flag' => '-o',
780 'lder' => 'OBJCXXLD',
783 'extensions' => ['.mm']);
785 # Unified Parallel C.
786 register_language ('name' => 'upc',
787 'Name' => 'Unified Parallel C',
788 'config_vars' => ['UPC'],
789 'linker' => 'UPCLINK',
790 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
792 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
793 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
795 'compiler' => 'UPCCOMPILE',
796 'compile_flag' => '-c',
797 'output_flag' => '-o',
801 'extensions' => ['.upc']);
804 register_language ('name' => 'header',
806 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
809 'output_extensions' => sub { return () },
811 '_finish' => sub { });
814 register_language ('name' => 'vala',
816 'config_vars' => ['VALAC'],
818 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
820 'compiler' => 'VALACOMPILE',
821 'extensions' => ['.vala'],
822 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
824 'rule_file' => 'vala',
825 '_finish' => \&lang_vala_finish,
826 '_target_hook' => \&lang_vala_target_hook,
827 'nodist_specific' => 1);
830 register_language ('name' => 'yacc',
832 'config_vars' => ['YACC'],
833 'flags' => ['YFLAGS'],
834 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
836 'compiler' => 'YACCCOMPILE',
837 'extensions' => ['.y'],
838 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
840 'rule_file' => 'yacc',
841 '_finish' => \&lang_yacc_finish,
842 '_target_hook' => \&lang_yacc_target_hook,
843 'nodist_specific' => 1);
844 register_language ('name' => 'yaccxx',
845 'Name' => 'Yacc (C++)',
846 'config_vars' => ['YACC'],
847 'rule_file' => 'yacc',
848 'flags' => ['YFLAGS'],
850 'compiler' => 'YACCCOMPILE',
851 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
852 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
853 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
855 '_finish' => \&lang_yacc_finish,
856 '_target_hook' => \&lang_yacc_target_hook,
857 'nodist_specific' => 1);
860 register_language ('name' => 'lex',
862 'config_vars' => ['LEX'],
863 'rule_file' => 'lex',
864 'flags' => ['LFLAGS'],
865 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
867 'compiler' => 'LEXCOMPILE',
868 'extensions' => ['.l'],
869 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
871 '_finish' => \&lang_lex_finish,
872 '_target_hook' => \&lang_lex_target_hook,
873 'nodist_specific' => 1);
874 register_language ('name' => 'lexxx',
875 'Name' => 'Lex (C++)',
876 'config_vars' => ['LEX'],
877 'rule_file' => 'lex',
878 'flags' => ['LFLAGS'],
879 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
881 'compiler' => 'LEXCOMPILE',
882 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
883 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
885 '_finish' => \&lang_lex_finish,
886 '_target_hook' => \&lang_lex_target_hook,
887 'nodist_specific' => 1);
890 register_language ('name' => 'asm',
891 'Name' => 'Assembler',
892 'config_vars' => ['CCAS', 'CCASFLAGS'],
894 'flags' => ['CCASFLAGS'],
895 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
896 # or anything else required. They can also set CCAS.
897 # Or simply use Preprocessed Assembler.
898 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
900 'compiler' => 'CCASCOMPILE',
901 'compile_flag' => '-c',
902 'output_flag' => '-o',
903 'extensions' => ['.s']);
905 # Preprocessed Assembler.
906 register_language ('name' => 'cppasm',
907 'Name' => 'Preprocessed Assembler',
908 'config_vars' => ['CCAS', 'CCASFLAGS'],
911 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
912 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
914 'compiler' => 'CPPASCOMPILE',
915 'compile_flag' => '-c',
916 'output_flag' => '-o',
917 'extensions' => ['.S', '.sx']);
920 register_language ('name' => 'f77',
921 'Name' => 'Fortran 77',
922 'config_vars' => ['F77'],
923 'linker' => 'F77LINK',
924 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
925 'flags' => ['FFLAGS'],
926 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
928 'compiler' => 'F77COMPILE',
929 'compile_flag' => '-c',
930 'output_flag' => '-o',
931 'libtool_tag' => 'F77',
935 'extensions' => ['.f', '.for']);
938 register_language ('name' => 'fc',
940 'config_vars' => ['FC'],
941 'linker' => 'FCLINK',
942 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
943 'flags' => ['FCFLAGS'],
944 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
946 'compiler' => 'FCCOMPILE',
947 'compile_flag' => '-c',
948 'output_flag' => '-o',
949 'libtool_tag' => 'FC',
953 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
955 # Preprocessed Fortran
956 register_language ('name' => 'ppfc',
957 'Name' => 'Preprocessed Fortran',
958 'config_vars' => ['FC'],
959 'linker' => 'FCLINK',
960 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
963 'flags' => ['FCFLAGS', 'CPPFLAGS'],
965 'compiler' => 'PPFCCOMPILE',
966 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
967 'compile_flag' => '-c',
968 'output_flag' => '-o',
969 'libtool_tag' => 'FC',
971 'extensions' => ['.F90','.F95', '.F03', '.F08']);
973 # Preprocessed Fortran 77
975 # The current support for preprocessing Fortran 77 just involves
976 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
977 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
978 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
979 # for 'make' Version 3.76 Beta" (specifically, from info file
980 # '(make)Catalogue of Rules').
982 # A better approach would be to write an Autoconf test
983 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
984 # Fortran 77 compilers know how to do preprocessing. The Autoconf
985 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
986 # preprocessing capabilities, and then fall back on cpp (if cpp were
988 register_language ('name' => 'ppf77',
989 'Name' => 'Preprocessed Fortran 77',
990 'config_vars' => ['F77'],
991 'linker' => 'F77LINK',
992 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
995 'flags' => ['FFLAGS', 'CPPFLAGS'],
997 'compiler' => 'PPF77COMPILE',
998 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
999 'compile_flag' => '-c',
1000 'output_flag' => '-o',
1001 'libtool_tag' => 'F77',
1003 'extensions' => ['.F']);
1006 register_language ('name' => 'ratfor',
1008 'config_vars' => ['F77'],
1009 'linker' => 'F77LINK',
1010 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1013 'flags' => ['RFLAGS', 'FFLAGS'],
1014 # FIXME also FFLAGS.
1015 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1017 'compiler' => 'RCOMPILE',
1018 'compile_flag' => '-c',
1019 'output_flag' => '-o',
1020 'libtool_tag' => 'F77',
1022 'extensions' => ['.r']);
1025 register_language ('name' => 'java',
1027 'config_vars' => ['GCJ'],
1028 'linker' => 'GCJLINK',
1029 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1031 'flags' => ['GCJFLAGS'],
1032 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1034 'compiler' => 'GCJCOMPILE',
1035 'compile_flag' => '-c',
1036 'output_flag' => '-o',
1037 'libtool_tag' => 'GCJ',
1041 'extensions' => ['.java', '.class', '.zip', '.jar']);
1043 ################################################################
1045 # Error reporting functions.
1047 # err_am ($MESSAGE, [%OPTIONS])
1048 # -----------------------------
1049 # Uncategorized errors about the current Makefile.am.
1052 msg_am ('error', @_);
1055 # err_ac ($MESSAGE, [%OPTIONS])
1056 # -----------------------------
1057 # Uncategorized errors about configure.ac.
1060 msg_ac ('error', @_);
1063 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1064 # ---------------------------------------
1065 # Messages about about the current Makefile.am.
1068 my ($channel, $msg, %opts) = @_;
1069 msg $channel, "${am_file}.am", $msg, %opts;
1072 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1073 # ---------------------------------------
1074 # Messages about about configure.ac.
1077 my ($channel, $msg, %opts) = @_;
1078 msg $channel, $configure_ac, $msg, %opts;
1081 ################################################################
1085 # Return a configure-style substitution using the indicated text.
1086 # We do this to avoid having the substitutions directly in automake.in;
1087 # when we do that they are sometimes removed and this causes confusion
1092 return '@' . $text . '@';
1095 ################################################################
1099 # &backname ($RELDIR)
1100 # --------------------
1101 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1102 # For instance 'src/foo' => '../..'.
1103 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1108 foreach (split (/\//, $file))
1110 next if $_ eq '.' || $_ eq '';
1114 or prog_error ("trying to reverse path '$file' pointing outside tree");
1121 return join ('/', @res) || '.';
1124 ################################################################
1126 # Silent rules handling functions.
1128 # verbose_var (NAME)
1129 # ------------------
1130 # The public variable stem used to implement silent rules.
1134 return 'AM_V_' . $name;
1137 # verbose_private_var (NAME)
1138 # --------------------------
1139 # The naming policy for the private variables for silent rules.
1140 sub verbose_private_var ($)
1143 return 'am__v_' . $name;
1146 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1147 # ----------------------------------------------------------
1148 # For silent rules, setup VAR and dispatcher, to expand to
1149 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
1151 sub define_verbose_var ($$;$)
1153 my ($name, $silent_val, $verbose_val) = @_;
1154 $verbose_val = '' unless defined $verbose_val;
1155 my $var = verbose_var ($name);
1156 my $pvar = verbose_private_var ($name);
1157 my $silent_var = $pvar . '_0';
1158 my $verbose_var = $pvar . '_1';
1159 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1160 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1161 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1162 # See AM_SILENT_RULES in m4/silent.m4.
1163 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1164 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1166 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1167 $silent_val, '', INTERNAL, VAR_ASIS)
1168 if (! vardef ($silent_var, TRUE));
1169 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1170 $verbose_val, '', INTERNAL, VAR_ASIS)
1171 if (! vardef ($verbose_var, TRUE));
1174 # Above should not be needed in the general automake code.
1176 # verbose_flag (NAME)
1177 # -------------------
1178 # Contents of %VERBOSE%: variable to expand before rule command.
1179 sub verbose_flag ($)
1182 return '$(' . verbose_var ($name) . ')';
1185 sub verbose_nodep_flag ($)
1188 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1193 # Contents of %SILENT%: variable to expand to '@' when silent.
1196 return verbose_flag ('at');
1199 # define_verbose_tagvar (NAME)
1200 # ----------------------------
1201 # Engage the needed silent rules machinery for tag NAME.
1202 sub define_verbose_tagvar ($)
1205 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1208 # define_verbose_texinfo
1209 # ----------------------
1210 # Engage the needed silent rules machinery for assorted texinfo commands.
1211 sub define_verbose_texinfo ()
1213 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1214 foreach my $tag (@tagvars)
1216 define_verbose_tagvar($tag);
1218 define_verbose_var('texinfo', '-q');
1219 define_verbose_var('texidevnull', '> /dev/null');
1222 # define_verbose_libtool
1223 # ----------------------
1224 # Engage the needed silent rules machinery for 'libtool --silent'.
1225 sub define_verbose_libtool ()
1227 define_verbose_var ('lt', '--silent');
1228 return verbose_flag ('lt');
1231 sub handle_silent ()
1233 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1234 # used in make recipes to determine whether we are being run in
1235 # silent mode or not. The choice of the name derives from the LISP
1236 # convention of appending the letter 'P' to denote a predicate (see
1237 # also "the '-P' convention" in the Jargon File); we do so for lack
1238 # of a better convention.
1239 define_verbose_var ('P', 'false', ':');
1240 # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
1241 define_verbose_tagvar ('GEN');
1242 define_verbose_var ('at', '@');
1246 ################################################################
1249 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1252 my $var = var ('AUTOMAKE_OPTIONS');
1255 if ($var->has_conditional_contents)
1257 msg_var ('unsupported', $var,
1258 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1260 my @options = map { { option => $_->[1], where => $_->[0] } }
1261 $var->value_as_list_recursive (cond_filter => TRUE,
1263 return 1 if process_option_list (@options);
1266 if ($strictness == GNITS)
1268 set_option ('readme-alpha', INTERNAL);
1269 set_option ('std-options', INTERNAL);
1270 set_option ('check-news', INTERNAL);
1276 # shadow_unconditionally ($varname, $where)
1277 # -----------------------------------------
1278 # Return a $(variable) that contains all possible values
1279 # $varname can take.
1280 # If the VAR wasn't defined conditionally, return $(VAR).
1281 # Otherwise we create an am__VAR_DIST variable which contains
1282 # all possible values, and return $(am__VAR_DIST).
1283 sub shadow_unconditionally ($$)
1285 my ($varname, $where) = @_;
1286 my $var = var $varname;
1287 if ($var->has_conditional_contents)
1289 $varname = "am__${varname}_DIST";
1290 my @files = uniq ($var->value_as_list_recursive);
1291 define_pretty_variable ($varname, TRUE, $where, @files);
1293 return "\$($varname)"
1296 # check_user_variables (@LIST)
1297 # ----------------------------
1298 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1300 sub check_user_variables (@)
1302 my @dont_override = @_;
1303 foreach my $flag (@dont_override)
1305 my $var = var $flag;
1308 for my $cond ($var->conditions->conds)
1310 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1312 msg_cond_var ('gnu', $cond, $flag,
1313 "'$flag' is a user variable, "
1314 . "you should not override it;\n"
1315 . "use 'AM_$flag' instead");
1322 # Call finish function for each language that was used.
1323 sub handle_languages
1325 if (! option 'no-dependencies')
1327 # Include auto-dep code. Don't include it if DEP_FILES would
1329 if (keys %extension_seen && keys %dep_files)
1331 # Set location of depcomp.
1332 &define_variable ('depcomp',
1333 "\$(SHELL) $am_config_aux_dir/depcomp",
1335 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1337 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1339 my @deplist = sort keys %dep_files;
1340 # Generate each 'include' individually. Irix 6 make will
1341 # not properly include several files resulting from a
1342 # variable expansion; generating many separate includes
1344 $output_rules .= "\n";
1345 foreach my $iter (@deplist)
1347 $output_rules .= (subst ('AMDEP_TRUE')
1348 . subst ('am__include')
1350 . subst ('am__quote')
1352 . subst ('am__quote')
1356 # Compute the set of directories to remove in distclean-depend.
1357 my @depdirs = uniq (map { dirname ($_) } @deplist);
1358 $output_rules .= &file_contents ('depend',
1359 new Automake::Location,
1360 DEPDIRS => "@depdirs");
1365 &define_variable ('depcomp', '', INTERNAL);
1366 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1371 # Is the C linker needed?
1373 foreach my $ext (sort keys %extension_seen)
1375 next unless $extension_map{$ext};
1377 my $lang = $languages{$extension_map{$ext}};
1379 my $rule_file = $lang->rule_file || 'depend2';
1381 # Get information on $LANG.
1382 my $pfx = $lang->autodep;
1383 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1385 my ($AMDEP, $FASTDEP) =
1386 (option 'no-dependencies' || $lang->autodep eq 'no')
1387 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1389 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1390 my $verbose_nodep = ($AMDEP eq 'FALSE')
1391 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1392 my $silent = silent_flag ();
1394 my %transform = ('EXT' => $ext,
1398 'FASTDEP' => $FASTDEP,
1399 '-c' => $lang->compile_flag || '',
1400 # These are not used, but they need to be defined
1401 # so &transform do not complain.
1403 'DERIVED-EXT' => 'BUG',
1405 VERBOSE => $verbose,
1406 'VERBOSE-NODEP' => $verbose_nodep,
1410 # Generate the appropriate rules for this extension.
1411 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1412 || defined $lang->compile)
1414 # Some C compilers don't support -c -o. Use it only if really
1416 my $output_flag = $lang->output_flag || '';
1419 && $lang->name eq 'c'
1420 && option 'subdir-objects');
1422 # Compute a possible derived extension.
1423 # This is not used by depend2.am.
1424 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1426 # When we output an inference rule like '.c.o:' we
1427 # have two cases to consider: either subdir-objects
1428 # is used, or it is not.
1430 # In the latter case the rule is used to build objects
1431 # in the current directory, and dependencies always
1432 # go into './$(DEPDIR)/'. We can hard-code this value.
1434 # In the former case the rule can be used to build
1435 # objects in sub-directories too. Dependencies should
1436 # go into the appropriate sub-directories, e.g.,
1437 # 'sub/$(DEPDIR)/'. The value of this directory
1438 # needs to be computed on-the-fly.
1440 # DEPBASE holds the name of this directory, plus the
1441 # basename part of the object file (extensions Po, TPo,
1442 # Plo, TPlo will be added later as appropriate). It is
1443 # either hardcoded, or a shell variable ('$depbase') that
1444 # will be computed by the rule.
1446 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1448 file_contents ($rule_file,
1449 new Automake::Location,
1453 'DERIVED-EXT' => $der_ext,
1455 DEPBASE => $depbase,
1458 SOURCEFLAG => $sourceflags{$ext} || '',
1463 COMPILE => '$(' . $lang->compiler . ')',
1464 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1466 SUBDIROBJ => !! option 'subdir-objects');
1469 # Now include code for each specially handled object with this
1471 my %seen_files = ();
1472 foreach my $file (@{$lang_specific_files{$lang->name}})
1474 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1476 # We might see a given object twice, for instance if it is
1477 # used under different conditions.
1478 next if defined $seen_files{$obj};
1479 $seen_files{$obj} = 1;
1481 prog_error ("found " . $lang->name .
1482 " in handle_languages, but compiler not defined")
1483 unless defined $lang->compile;
1485 my $obj_compile = $lang->compile;
1487 # Rewrite each occurrence of 'AM_$flag' in the compile
1488 # rule into '${derived}_$flag' if it exists.
1489 for my $flag (@{$lang->flags})
1491 my $val = "${derived}_$flag";
1492 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1496 my $libtool_tag = '';
1497 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1499 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1502 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1503 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1505 my $ltverbose = define_verbose_libtool ();
1507 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1508 . "--mode=compile $obj_compile";
1510 # We _need_ '-o' for per object rules.
1511 my $output_flag = $lang->output_flag || '-o';
1513 my $depbase = dirname ($obj);
1517 unless $depbase eq '';
1518 $depbase .= '$(DEPDIR)/' . basename ($obj);
1521 file_contents ($rule_file,
1522 new Automake::Location,
1526 DEPBASE => $depbase,
1529 SOURCEFLAG => $sourceflags{$srcext} || '',
1530 # Use $myext and not '.o' here, in case
1531 # we are actually building a new source
1532 # file -- e.g. via yacc.
1533 OBJ => "$obj$myext",
1534 OBJOBJ => "$obj.obj",
1537 VERBOSE => $verbose,
1538 'VERBOSE-NODEP' => $verbose_nodep,
1540 COMPILE => $obj_compile,
1541 LTCOMPILE => $obj_ltcompile,
1546 # The rest of the loop is done once per language.
1547 next if defined $done{$lang};
1550 # Load the language dependent Makefile chunks.
1551 my %lang = map { uc ($_) => 0 } keys %languages;
1552 $lang{uc ($lang->name)} = 1;
1553 $output_rules .= file_contents ('lang-compile',
1554 new Automake::Location,
1557 # If the source to a program consists entirely of code from a
1558 # 'pure' language, for instance C++ or Fortran 77, then we
1559 # don't need the C compiler code. However if we run into
1560 # something unusual then we do generate the C code. There are
1561 # probably corner cases here that do not work properly.
1562 # People linking Java code to Fortran code deserve pain.
1563 $needs_c ||= ! $lang->pure;
1565 define_compiler_variable ($lang)
1566 if ($lang->compile);
1568 define_linker_variable ($lang)
1571 require_variables ("$am_file.am", $lang->Name . " source seen",
1572 TRUE, @{$lang->config_vars});
1574 # Call the finisher.
1577 # Flags listed in '->flags' are user variables (per GNU Standards),
1578 # they should not be overridden in the Makefile...
1579 my @dont_override = @{$lang->flags};
1580 # ... and so is LDFLAGS.
1581 push @dont_override, 'LDFLAGS' if $lang->link;
1583 check_user_variables @dont_override;
1586 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1587 # suffix rule was learned), don't bother with the C stuff. But if
1588 # anything else creeps in, then use it.
1590 if $need_link || suffix_rules_count > 1;
1594 &define_compiler_variable ($languages{'c'})
1595 unless defined $done{$languages{'c'}};
1596 define_linker_variable ($languages{'c'});
1601 # append_exeext { PREDICATE } $MACRO
1602 # ----------------------------------
1603 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1604 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1607 # This is typically used on all filenames of *_PROGRAMS, and filenames
1608 # of TESTS that are programs.
1609 sub append_exeext (&$)
1611 my ($pred, $macro) = @_;
1613 transform_variable_recursively
1614 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1616 my ($subvar, $val, $cond, $full_cond) = @_;
1617 # Append $(EXEEXT) unless the user did it already, or it's a
1620 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1626 # Check to make sure a source defined in LIBOBJS is not explicitly
1627 # mentioned. This is a separate function (as opposed to being inlined
1628 # in handle_source_transform) because it isn't always appropriate to
1630 sub check_libobjs_sources
1632 my ($one_file, $unxformed) = @_;
1634 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1635 'dist_EXTRA_', 'nodist_EXTRA_')
1638 my $varname = $prefix . $one_file . '_SOURCES';
1639 my $var = var ($varname);
1642 @files = $var->value_as_list_recursive;
1644 elsif ($prefix eq '')
1646 @files = ($unxformed . '.c');
1653 foreach my $file (@files)
1655 err_var ($prefix . $one_file . '_SOURCES',
1656 "automatically discovered file '$file' should not" .
1657 " be explicitly mentioned")
1658 if defined $libsources{$file};
1665 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1666 # -----------------------------------------------------------------------------
1667 # Does much of the actual work for handle_source_transform.
1669 # $VAR is the name of the variable that the source filenames come from
1670 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1671 # $DERIVED is the name of resulting executable or library
1672 # $OBJ is the object extension (e.g., '.lo')
1673 # $FILE the source file to transform
1674 # %TRANSFORM contains extras arguments to pass to file_contents
1675 # when producing explicit rules
1676 # Result is a list of the names of objects
1677 # %linkers_used will be updated with any linkers needed
1678 sub handle_single_transform ($$$$$%)
1680 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1681 my @files = ($_file);
1684 # Turn sources into objects. We use a while loop like this
1685 # because we might add to @files in the loop.
1686 while (scalar @files > 0)
1690 # Configure substitutions in _SOURCES variables are errors.
1693 my $parent_msg = '';
1694 $parent_msg = "\nand is referred to from '$topparent'"
1695 if $topparent ne $var->name;
1697 "'" . $var->name . "' includes configure substitution '$_'"
1698 . $parent_msg . ";\nconfigure " .
1699 "substitutions are not allowed in _SOURCES variables");
1703 # If the source file is in a subdirectory then the '.o' is put
1704 # into the current directory, unless the subdir-objects option
1707 # Split file name into base and extension.
1708 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1710 my $directory = $1 || '';
1714 # We must generate a rule for the object if it requires its own flags.
1716 my ($linker, $object);
1718 # This records whether we've seen a derived source file (e.g.
1720 my $derived_source = 0;
1722 # This holds the 'aggregate context' of the file we are
1723 # currently examining. If the file is compiled with
1724 # per-object flags, then it will be the name of the object.
1725 # Otherwise it will be 'AM'. This is used by the target hook
1726 # language function.
1727 my $aggregate = 'AM';
1729 $extension = &derive_suffix ($extension, $obj);
1731 if ($extension_map{$extension} &&
1732 ($lang = $languages{$extension_map{$extension}}))
1734 # Found the language, so see what it says.
1735 &saw_extension ($extension);
1737 # Do we have per-executable flags for this executable?
1738 my $have_per_exec_flags = 0;
1739 my @peflags = @{$lang->flags};
1740 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1741 foreach my $flag (@peflags)
1743 if (set_seen ("${derived}_$flag"))
1745 $have_per_exec_flags = 1;
1750 # Note: computed subr call. The language rewrite function
1751 # should return one of the LANG_* constants. It could
1752 # also return a list whose first value is such a constant
1753 # and whose second value is a new source extension which
1754 # should be applied. This means this particular language
1755 # generates another source file which we must then process
1757 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1758 my ($r, $source_extension)
1759 = &$subr ($directory, $base, $extension,
1760 $obj, $have_per_exec_flags, $var);
1761 # Skip this entry if we were asked not to process it.
1762 next if $r == LANG_IGNORE;
1764 # Now extract linker and other info.
1765 $linker = $lang->linker;
1768 if (defined $source_extension)
1770 $this_obj_ext = $source_extension;
1771 $derived_source = 1;
1775 $this_obj_ext = $obj;
1777 $object = $base . $this_obj_ext;
1779 if ($have_per_exec_flags)
1781 # We have a per-executable flag in effect for this
1782 # object. In this case we rewrite the object's
1783 # name to ensure it is unique.
1785 # We choose the name 'DERIVED_OBJECT' to ensure
1786 # (1) uniqueness, and (2) continuity between
1787 # invocations. However, this will result in a
1788 # name that is too long for losing systems, in
1789 # some situations. So we provide _SHORTNAME to
1792 my $dname = $derived;
1793 my $var = var ($derived . '_SHORTNAME');
1796 # FIXME: should use the same Condition as
1797 # the _SOURCES variable. But this is really
1798 # silly overkill -- nobody should have
1799 # conditional shortnames.
1800 $dname = $var->variable_value;
1802 $object = $dname . '-' . $object;
1804 prog_error ($lang->name . " flags defined without compiler")
1805 if ! defined $lang->compile;
1810 # If rewrite said it was ok, put the object into a
1812 if ($r == LANG_SUBDIR && $directory ne '')
1814 $object = $directory . '/' . $object;
1817 # If the object file has been renamed (because per-target
1818 # flags are used) we cannot compile the file with an
1819 # inference rule: we need an explicit rule.
1821 # If the source is in a subdirectory and the object is in
1822 # the current directory, we also need an explicit rule.
1824 # If both source and object files are in a subdirectory
1825 # (this happens when the subdir-objects option is used),
1826 # then the inference will work.
1828 # The latter case deserves a historical note. When the
1829 # subdir-objects option was added on 1999-04-11 it was
1830 # thought that inferences rules would work for
1831 # subdirectory objects too. Later, on 1999-11-22,
1832 # automake was changed to output explicit rules even for
1833 # subdir-objects. Nobody remembers why, but this occurred
1834 # soon after the merge of the user-dep-gen-branch so it
1835 # might be related. In late 2003 people complained about
1836 # the size of the generated Makefile.ins (libgcj, with
1837 # 2200+ subdir objects was reported to have a 9MB
1838 # Makefile), so we now rely on inference rules again.
1839 # Maybe we'll run across the same issue as in the past,
1840 # but at least this time we can document it. However since
1841 # dependency tracking has evolved it is possible that
1842 # our old problem no longer exists.
1843 # Using inference rules for subdir-objects has been tested
1844 # with GNU make, Solaris make, Ultrix make, BSD make,
1845 # HP-UX make, and OSF1 make successfully.
1847 || ($directory ne '' && ! option 'subdir-objects')
1848 # We must also use specific rules for a nodist_ source
1849 # if its language requests it.
1850 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1852 my $obj_sans_ext = substr ($object, 0,
1853 - length ($this_obj_ext));
1855 if ($directory ne '')
1857 $full_ansi = $directory . '/' . $base . $extension;
1861 $full_ansi = $base . $extension;
1864 my @specifics = ($full_ansi, $obj_sans_ext,
1865 # Only use $this_obj_ext in the derived
1866 # source case because in the other case we
1867 # *don't* want $(OBJEXT) to appear here.
1868 ($derived_source ? $this_obj_ext : '.o'),
1871 # If we renamed the object then we want to use the
1872 # per-executable flag name. But if this is simply a
1873 # subdir build then we still want to use the AM_ flag
1877 unshift @specifics, $derived;
1878 $aggregate = $derived;
1882 unshift @specifics, 'AM';
1885 # Each item on this list is a reference to a list consisting
1886 # of four values followed by additional transform flags for
1887 # file_contents. The four values are the derived flag prefix
1888 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1889 # source file, the base name of the output file, and
1890 # the extension for the object file.
1891 push (@{$lang_specific_files{$lang->name}},
1892 [@specifics, %transform]);
1895 elsif ($extension eq $obj)
1897 # This is probably the result of a direct suffix rule.
1898 # In this case we just accept the rewrite.
1899 $object = "$base$extension";
1900 $object = "$directory/$object" if $directory ne '';
1905 # No error message here. Used to have one, but it was
1907 # FIXME: we could potentially do more processing here,
1908 # perhaps treating the new extension as though it were a
1909 # new source extension (as above). This would require
1910 # more restructuring than is appropriate right now.
1914 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1915 if (defined $object_map{$object}
1916 && $object_map{$object} ne $full);
1918 my $comp_val = (($object =~ /\.lo$/)
1919 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1920 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1921 if (defined $object_compilation_map{$comp_obj}
1922 && $object_compilation_map{$comp_obj} != 0
1923 # Only see the error once.
1924 && ($object_compilation_map{$comp_obj}
1925 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1926 && $object_compilation_map{$comp_obj} != $comp_val)
1928 err_am "object '$comp_obj' created both with libtool and without";
1930 $object_compilation_map{$comp_obj} |= $comp_val;
1934 # Let the language do some special magic if required.
1935 $lang->target_hook ($aggregate, $object, $full, %transform);
1938 if ($derived_source)
1940 prog_error ($lang->name . " has automatic dependency tracking")
1941 if $lang->autodep ne 'no';
1942 # Make sure this new source file is handled next. That will
1943 # make it appear to be at the right place in the list.
1944 unshift (@files, $object);
1945 # Distribute derived sources unless the source they are
1946 # derived from is not.
1947 &push_dist_common ($object)
1948 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1952 $linkers_used{$linker} = 1;
1954 push (@result, $object);
1956 if (! defined $object_map{$object})
1959 $object_map{$object} = $full;
1961 # If resulting object is in subdir, we need to make
1962 # sure the subdir exists at build time.
1963 if ($object =~ /\//)
1965 # FIXME: check that $DIRECTORY is somewhere in the
1968 # For Java, the way we're handling it right now, a
1969 # '..' component doesn't make sense.
1970 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1972 err_am "'$full' should not contain a '..' component";
1975 # Make sure *all* objects files in the subdirectory are
1976 # removed by "make mostlyclean". Not only this is more
1977 # efficient than listing the object files to be removed
1978 # individually (which would cause an 'rm' invocation for
1979 # each of them -- very inefficient, see bug#10697), it
1980 # would also leave stale object files in the subdirectory
1981 # whenever a source file there is removed or renamed.
1982 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
1983 if ($object =~ /\.lo$/)
1985 # If we have a libtool object, then we also must remove
1986 # any '.lo' objects in its same subdirectory.
1987 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
1988 # Remember to cleanup .libs/ in this directory.
1989 $libtool_clean_directories{$directory} = 1;
1992 push (@dep_list, require_build_directory ($directory));
1994 # If we're generating dependencies, we also want
1995 # to make sure that the appropriate subdir of the
1996 # .deps directory is created.
1998 require_build_directory ($directory . '/$(DEPDIR)'))
1999 unless option 'no-dependencies';
2002 &pretty_print_rule ($object . ':', "\t", @dep_list)
2003 if scalar @dep_list > 0;
2006 # Transform .o or $o file into .P file (for automatic
2008 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2009 # might fail over them in an include statement.
2010 # Leading double slashes may be special, as per Posix, so deal
2011 # with them carefully.
2012 if ($lang && $lang->autodep ne 'no')
2014 my $depfile = $object;
2015 $depfile =~ s/\.([^.]*)$/.P$1/;
2016 $depfile =~ s/\$\(OBJEXT\)$/o/;
2017 my $maybe_extra_leading_slash = '';
2018 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2019 $depfile =~ s,/+,/,g;
2020 my $basename = basename ($depfile);
2021 # This might make $dirname empty, but we account for that below.
2022 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2023 $dirname = $maybe_extra_leading_slash . $dirname;
2024 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2033 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2034 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2035 # ---------------------------------------------------------------------------
2036 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2039 # $VAR is the name of the _SOURCES variable
2040 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2041 # it will be generated and returned).
2042 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2043 # work done to determine the linker will be).
2044 # $ONE_FILE is the canonical (transformed) name of object to build
2045 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2046 # $TOPPARENT is the _SOURCES variable being processed.
2047 # $WHERE context into which this definition is done
2048 # %TRANSFORM extra arguments to pass to file_contents when producing
2051 # Result is a pair ($LINKER, $OBJVAR):
2052 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2053 sub define_objects_from_sources ($$$$$$$%)
2055 my ($var, $objvar, $nodefine, $one_file,
2056 $obj, $topparent, $where, %transform) = @_;
2058 my $needlinker = "";
2060 transform_variable_recursively
2061 ($var, $objvar, 'am__objects', $nodefine, $where,
2062 # The transform code to run on each filename.
2064 my ($subvar, $val, $cond, $full_cond) = @_;
2065 my @trans = handle_single_transform ($subvar, $topparent,
2066 $one_file, $obj, $val,
2068 $needlinker = "true" if @trans;
2076 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2077 # -----------------------------------------------------------------------------
2078 # Handle SOURCE->OBJECT transform for one program or library.
2080 # canonical (transformed) name of target to build
2081 # actual target of object to build
2082 # object extension (i.e., either '.o' or '$o')
2083 # location of the source variable
2084 # extra arguments to pass to file_contents when producing rules
2085 # Return the name of the linker variable that must be used.
2086 # Empty return means just use 'LINK'.
2087 sub handle_source_transform ($$$$%)
2089 # one_file is canonical name. unxformed is given name. obj is
2091 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2095 # No point in continuing if _OBJECTS is defined.
2096 return if reject_var ($one_file . '_OBJECTS',
2097 $one_file . '_OBJECTS should not be defined');
2102 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2103 'dist_EXTRA_', 'nodist_EXTRA_')
2105 my $varname = $prefix . $one_file . "_SOURCES";
2106 my $var = var $varname;
2109 # We are going to define _OBJECTS variables using the prefix.
2110 # Then we glom them all together. So we can't use the null
2111 # prefix here as we need it later.
2112 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2114 # Keep track of which prefixes we saw.
2115 $used_pfx{$xpfx} = 1
2116 unless $prefix =~ /EXTRA_/;
2118 push @sources, "\$($varname)";
2119 push @dist_sources, shadow_unconditionally ($varname, $where)
2120 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2123 define_objects_from_sources ($varname,
2124 $xpfx . $one_file . '_OBJECTS',
2125 $prefix =~ /EXTRA_/,
2126 $one_file, $obj, $varname, $where,
2127 DIST_SOURCE => ($prefix !~ /^nodist_/),
2132 $linker ||= &resolve_linker (%linkers_used);
2135 my @keys = sort keys %used_pfx;
2136 if (scalar @keys == 0)
2138 # The default source for libfoo.la is libfoo.c, but for
2139 # backward compatibility we first look at libfoo_la.c,
2140 # if no default source suffix is given.
2141 my $old_default_source = "$one_file.c";
2142 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2143 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2144 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2145 if $default_source_ext =~ /[\t ]/;
2146 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2147 if ($old_default_source ne $default_source
2149 && (rule $old_default_source
2150 || rule '$(srcdir)/' . $old_default_source
2151 || rule '${srcdir}/' . $old_default_source
2152 || -f $old_default_source))
2154 my $loc = $where->clone;
2156 msg ('obsolete', $loc,
2157 "the default source for '$unxformed' has been changed "
2158 . "to '$default_source'.\n(Using '$old_default_source' for "
2159 . "backward compatibility.)");
2160 $default_source = $old_default_source;
2162 # If a rule exists to build this source with a $(srcdir)
2163 # prefix, use that prefix in our variables too. This is for
2164 # the sake of BSD Make.
2165 if (rule '$(srcdir)/' . $default_source
2166 || rule '${srcdir}/' . $default_source)
2168 $default_source = '$(srcdir)/' . $default_source;
2171 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2172 push (@sources, $default_source);
2173 push (@dist_sources, $default_source);
2177 handle_single_transform ($one_file . '_SOURCES',
2178 $one_file . '_SOURCES',
2180 $default_source, %transform);
2181 $linker ||= &resolve_linker (%linkers_used);
2182 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2186 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2187 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2190 # If we want to use 'LINK' we must make sure it is defined.
2200 # handle_lib_objects ($XNAME, $VAR)
2201 # ---------------------------------
2202 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2203 # Also, generate _DEPENDENCIES variable if appropriate.
2205 # transformed name of object being built, or empty string if no object
2206 # name of _LDADD/_LIBADD-type variable to examine
2207 # Returns 1 if LIBOBJS seen, 0 otherwise.
2208 sub handle_lib_objects
2210 my ($xname, $varname) = @_;
2212 my $var = var ($varname);
2213 prog_error "'$varname' undefined"
2215 prog_error "unexpected variable name '$varname'"
2216 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2217 my $prefix = $1 || 'AM_';
2219 my $seen_libobjs = 0;
2222 transform_variable_recursively
2223 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2225 # Transformation function, run on each filename.
2227 my ($subvar, $val, $cond, $full_cond) = @_;
2231 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2232 if ($val !~ /^-[lL]/ &&
2233 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2234 # for Libtool libraries or programs. (Actually we are a bit
2235 # lax here since this code also applies to non-libtool
2236 # libraries or programs, for which -dlopen and -dlopreopen
2237 # are pure nonsense. Diagnosing this doesn't seem very
2238 # important: the developer will quickly get complaints from
2240 $val !~ /^-dl(?:pre)?open$/ &&
2241 # Only get this error once.
2245 # FIXME: should display a stack of nested variables
2246 # as context when $var != $subvar.
2247 err_var ($var, "linker flags such as '$val' belong in "
2248 . "'${prefix}LDFLAGS'");
2252 elsif ($val !~ /^\@.*\@$/)
2254 # Assume we have a file of some sort, and output it into the
2255 # dependency variable. Autoconf substitutions are not output;
2256 # rarely is a new dependency substituted into e.g. foo_LDADD
2257 # -- but bad things (e.g. -lX11) are routinely substituted.
2258 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2259 # and handled specially below.
2262 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2264 handle_LIBOBJS ($subvar, $cond, $1);
2268 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2270 handle_ALLOCA ($subvar, $cond, $1);
2279 return $seen_libobjs;
2282 # handle_LIBOBJS_or_ALLOCA ($VAR)
2283 # -------------------------------
2284 # Definitions common to LIBOBJS and ALLOCA.
2285 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2286 sub handle_LIBOBJS_or_ALLOCA ($)
2292 # If LIBOBJS files must be built in another directory we have
2293 # to define LIBOBJDIR and ensure the files get cleaned.
2294 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2295 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2296 if ($config_libobj_dir
2297 && $relative_dir ne $config_libobj_dir)
2299 if (option 'subdir-objects')
2301 # In the top-level Makefile we do not use $(top_builddir), because
2302 # we are already there, and since the targets are built without
2303 # a $(top_builddir), it helps BSD Make to match them with
2305 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2306 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2307 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2308 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2309 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2310 # be created by libtool as a side-effect of creating LTLIBOBJS).
2311 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2315 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2316 . " 'subdir-objects' is not set");
2323 sub handle_LIBOBJS ($$$)
2325 my ($var, $cond, $lt) = @_;
2326 my $myobjext = $lt ? 'lo' : 'o';
2329 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2330 if ! keys %libsources;
2332 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2334 foreach my $iter (keys %libsources)
2336 if ($iter =~ /\.[cly]$/)
2338 &saw_extension ($&);
2339 &saw_extension ('.c');
2342 if ($iter =~ /\.h$/)
2344 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2346 elsif ($iter ne 'alloca.c')
2348 my $rewrite = $iter;
2349 $rewrite =~ s/\.c$/.P$myobjext/;
2350 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2351 $rewrite = "^" . quotemeta ($iter) . "\$";
2352 # Only require the file if it is not a built source.
2353 my $bs = var ('BUILT_SOURCES');
2354 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2356 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2362 sub handle_ALLOCA ($$$)
2364 my ($var, $cond, $lt) = @_;
2365 my $myobjext = $lt ? 'lo' : 'o';
2367 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2369 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2370 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2371 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2372 &saw_extension ('.c');
2375 # Canonicalize the input parameter
2379 $string =~ tr/A-Za-z0-9_\@/_/c;
2383 # Canonicalize a name, and check to make sure the non-canonical name
2384 # is never used. Returns canonical name. Arguments are name and a
2385 # list of suffixes to check for.
2386 sub check_canonical_spelling
2388 my ($name, @suffixes) = @_;
2390 my $xname = &canonicalize ($name);
2391 if ($xname ne $name)
2393 foreach my $xt (@suffixes)
2395 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2405 # Set up the compile suite.
2406 sub handle_compile ()
2408 return if ! $must_handle_compiled_objects;
2411 my $default_includes = '';
2412 if (! option 'nostdinc')
2414 my @incs = ('-I.', subst ('am__isrc'));
2416 my $var = var 'CONFIG_HEADER';
2419 foreach my $hdr (split (' ', $var->variable_value))
2421 push @incs, '-I' . dirname ($hdr);
2424 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2425 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2426 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2427 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2428 # to just put @am__isrc@ right after '-I.', without a space.
2429 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2432 my (@mostly_rms, @dist_rms);
2433 foreach my $item (sort keys %compile_clean_files)
2435 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2437 push (@mostly_rms, "\t-rm -f $item");
2439 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2441 push (@dist_rms, "\t-rm -f $item");
2445 prog_error 'invalid entry in %compile_clean_files';
2449 my ($coms, $vars, $rules) =
2450 &file_contents_internal (1, "$libdir/am/compile.am",
2451 new Automake::Location,
2452 ('DEFAULT_INCLUDES' => $default_includes,
2453 'MOSTLYRMS' => join ("\n", @mostly_rms),
2454 'DISTRMS' => join ("\n", @dist_rms)));
2455 $output_vars .= $vars;
2456 $output_rules .= "$coms$rules";
2461 # Handle libtool rules.
2464 return unless var ('LIBTOOL');
2466 # Libtool requires some files, but only at top level.
2467 # (Starting with Libtool 2.0 we do not have to bother. These
2468 # requirements are done with AC_REQUIRE_AUX_FILE.)
2469 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2470 if $relative_dir eq '.' && ! $libtool_new_api;
2473 foreach my $item (sort keys %libtool_clean_directories)
2475 my $dir = ($item eq '.') ? '' : "$item/";
2476 # .libs is for Unix, _libs for DOS.
2477 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2480 check_user_variables 'LIBTOOLFLAGS';
2482 # Output the libtool compilation rules.
2483 $output_rules .= &file_contents ('libtool',
2484 new Automake::Location,
2485 LTRMS => join ("\n", @libtool_rms));
2488 # handle_programs ()
2489 # ------------------
2490 # Handle C programs.
2493 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2494 'bin', 'sbin', 'libexec', 'pkglibexec',
2496 return if ! @proglist;
2497 $must_handle_compiled_objects = 1;
2499 my $seen_global_libobjs =
2500 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2502 foreach my $pair (@proglist)
2504 my ($where, $one_file) = @$pair;
2506 my $seen_libobjs = 0;
2507 my $obj = '.$(OBJEXT)';
2509 $known_programs{$one_file} = $where;
2511 # Canonicalize names and check for misspellings.
2512 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2513 '_SOURCES', '_OBJECTS',
2516 $where->push_context ("while processing program '$one_file'");
2517 $where->set (INTERNAL->get);
2519 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2520 NONLIBTOOL => 1, LIBTOOL => 0);
2522 if (var ($xname . "_LDADD"))
2524 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2528 # User didn't define prog_LDADD override. So do it.
2529 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2531 # This does a bit too much work. But we need it to
2532 # generate _DEPENDENCIES when appropriate.
2535 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2539 reject_var ($xname . '_LIBADD',
2540 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2542 set_seen ($xname . '_DEPENDENCIES');
2543 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2544 set_seen ($xname . '_LDFLAGS');
2546 # Determine program to use for link.
2547 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2548 $vlink = verbose_flag ($vlink || 'GEN');
2550 # If the resulting program lies into a subdirectory,
2551 # make sure this directory will exist.
2552 my $dirstamp = require_build_directory_maybe ($one_file);
2554 $libtool_clean_directories{dirname ($one_file)} = 1;
2556 $output_rules .= &file_contents ('program',
2558 PROGRAM => $one_file,
2562 DIRSTAMP => $dirstamp,
2563 EXEEXT => '$(EXEEXT)');
2565 if ($seen_libobjs || $seen_global_libobjs)
2567 if (var ($xname . '_LDADD'))
2569 &check_libobjs_sources ($xname, $xname . '_LDADD');
2571 elsif (var ('LDADD'))
2573 &check_libobjs_sources ($xname, 'LDADD');
2580 # handle_libraries ()
2581 # -------------------
2583 sub handle_libraries
2585 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2586 'lib', 'pkglib', 'noinst', 'check');
2587 return if ! @liblist;
2588 $must_handle_compiled_objects = 1;
2590 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2595 my $var = rvar ($prefix[0] . '_LIBRARIES');
2596 $var->requires_variables ('library used', 'RANLIB');
2599 &define_variable ('AR', 'ar', INTERNAL);
2600 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2601 &define_verbose_tagvar ('AR');
2603 foreach my $pair (@liblist)
2605 my ($where, $onelib) = @$pair;
2607 my $seen_libobjs = 0;
2608 # Check that the library fits the standard naming convention.
2609 my $bn = basename ($onelib);
2610 if ($bn !~ /^lib.*\.a$/)
2612 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2613 my $suggestion = dirname ($onelib) . "/$bn";
2614 $suggestion =~ s|^\./||g;
2615 msg ('error-gnu/warn', $where,
2616 "'$onelib' is not a standard library name\n"
2617 . "did you mean '$suggestion'?")
2620 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2622 $where->push_context ("while processing library '$onelib'");
2623 $where->set (INTERNAL->get);
2625 my $obj = '.$(OBJEXT)';
2627 # Canonicalize names and check for misspellings.
2628 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2629 '_OBJECTS', '_DEPENDENCIES',
2632 if (! var ($xlib . '_AR'))
2634 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2637 # Generate support for conditional object inclusion in
2639 if (var ($xlib . '_LIBADD'))
2641 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2648 &define_variable ($xlib . "_LIBADD", '', $where);
2651 reject_var ($xlib . '_LDADD',
2652 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2654 # Make sure we at look at this.
2655 set_seen ($xlib . '_DEPENDENCIES');
2656 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2658 &handle_source_transform ($xlib, $onelib, $obj, $where,
2659 NONLIBTOOL => 1, LIBTOOL => 0);
2661 # If the resulting library lies into a subdirectory,
2662 # make sure this directory will exist.
2663 my $dirstamp = require_build_directory_maybe ($onelib);
2664 my $verbose = verbose_flag ('AR');
2665 my $silent = silent_flag ();
2667 $output_rules .= &file_contents ('library',
2669 VERBOSE => $verbose,
2673 DIRSTAMP => $dirstamp);
2677 if (var ($xlib . '_LIBADD'))
2679 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2685 msg ('extra-portability', $where,
2686 "'$onelib': linking libraries using a non-POSIX\n"
2687 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2693 # handle_ltlibraries ()
2694 # ---------------------
2695 # Handle shared libraries.
2696 sub handle_ltlibraries
2698 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2699 'noinst', 'lib', 'pkglib', 'check');
2700 return if ! @liblist;
2701 $must_handle_compiled_objects = 1;
2703 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2708 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2709 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2713 my %instsubdirs = ();
2715 my %liblocations = (); # Location (in Makefile.am) of each library.
2717 foreach my $key (@prefix)
2719 # Get the installation directory of each library.
2721 my $strip_subdir = 1;
2722 if ($dir =~ /^nobase_/)
2724 $dir =~ s/^nobase_//;
2727 my $var = rvar ($key . '_LTLIBRARIES');
2729 # We reject libraries which are installed in several places
2730 # in the same condition, because we can only specify one
2732 $var->traverse_recursively
2735 my ($var, $val, $cond, $full_cond) = @_;
2736 my $hcond = $full_cond->human;
2737 my $where = $var->rdef ($cond)->location;
2739 $ldir = '/' . dirname ($val)
2740 if (!$strip_subdir);
2741 # A library cannot be installed in different directories
2742 # in overlapping conditions.
2743 if (exists $instconds{$val})
2746 $instconds{$val}->ambiguous_p ($val, $full_cond);
2750 error ($where, $msg, partial => 1);
2751 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2752 $dirtxt = "built for '$dir'"
2753 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2755 $full_cond->true ? "" : " in condition $hcond";
2757 error ($where, "'$val' should be $dirtxt$dircond ...",
2760 my $hacond = $acond->human;
2761 my $adir = $instdirs{$val}{$acond};
2762 my $adirtxt = "installed in '$adir'";
2763 $adirtxt = "built for '$adir'"
2764 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2765 || $adir eq 'check');
2766 my $adircond = $acond->true ? "" : " in condition $hacond";
2768 my $onlyone = ($dir ne $adir) ?
2769 ("\nLibtool libraries can be built for only one "
2770 . "destination") : "";
2772 error ($liblocations{$val}{$acond},
2773 "... and should also be $adirtxt$adircond.$onlyone");
2779 $instconds{$val} = new Automake::DisjConditions;
2781 $instdirs{$val}{$full_cond} = $dir;
2782 $instsubdirs{$val}{$full_cond} = $ldir;
2783 $liblocations{$val}{$full_cond} = $where;
2784 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2790 skip_ac_subst => 1);
2793 foreach my $pair (@liblist)
2795 my ($where, $onelib) = @$pair;
2797 my $seen_libobjs = 0;
2800 # Canonicalize names and check for misspellings.
2801 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2802 '_SOURCES', '_OBJECTS',
2805 # Check that the library fits the standard naming convention.
2806 my $libname_rx = '^lib.*\.la';
2807 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2808 my $ldvar2 = var ('LDFLAGS');
2809 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2810 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2812 # Relax name checking for libtool modules.
2813 $libname_rx = '\.la';
2816 my $bn = basename ($onelib);
2817 if ($bn !~ /$libname_rx$/)
2819 my $type = 'library';
2820 if ($libname_rx eq '\.la')
2822 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2827 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2829 my $suggestion = dirname ($onelib) . "/$bn";
2830 $suggestion =~ s|^\./||g;
2831 msg ('error-gnu/warn', $where,
2832 "'$onelib' is not a standard libtool $type name\n"
2833 . "did you mean '$suggestion'?")
2836 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2838 $where->push_context ("while processing Libtool library '$onelib'");
2839 $where->set (INTERNAL->get);
2841 # Make sure we look at these.
2842 set_seen ($xlib . '_LDFLAGS');
2843 set_seen ($xlib . '_DEPENDENCIES');
2844 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2846 # Generate support for conditional object inclusion in
2848 if (var ($xlib . '_LIBADD'))
2850 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2857 &define_variable ($xlib . "_LIBADD", '', $where);
2860 reject_var ("${xlib}_LDADD",
2861 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2864 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2865 NONLIBTOOL => 0, LIBTOOL => 1);
2867 # Determine program to use for link.
2868 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2869 $vlink = verbose_flag ($vlink || 'GEN');
2871 my $rpathvar = "am_${xlib}_rpath";
2872 my $rpath = "\$($rpathvar)";
2873 foreach my $rcond ($instconds{$onelib}->conds)
2876 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2877 || $instdirs{$onelib}{$rcond} eq 'noinst'
2878 || $instdirs{$onelib}{$rcond} eq 'check')
2880 # It's an EXTRA_ library, so we can't specify -rpath,
2881 # because we don't know where the library will end up.
2882 # The user probably knows, but generally speaking automake
2883 # doesn't -- and in fact configure could decide
2884 # dynamically between two different locations.
2889 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2890 $val .= $instsubdirs{$onelib}{$rcond}
2891 if defined $instsubdirs{$onelib}{$rcond};
2895 # If $rcond is true there is only one condition and
2896 # there is no point defining an helper variable.
2901 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2905 # If the resulting library lies into a subdirectory,
2906 # make sure this directory will exist.
2907 my $dirstamp = require_build_directory_maybe ($onelib);
2909 # Remember to cleanup .libs/ in this directory.
2910 my $dirname = dirname $onelib;
2911 $libtool_clean_directories{$dirname} = 1;
2913 $output_rules .= &file_contents ('ltlibrary',
2915 LTLIBRARY => $onelib,
2916 XLTLIBRARY => $xlib,
2920 DIRSTAMP => $dirstamp);
2923 if (var ($xlib . '_LIBADD'))
2925 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2931 msg ('extra-portability', $where,
2932 "'$onelib': linking libtool libraries using a non-POSIX\n"
2933 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2938 # See if any _SOURCES variable were misspelled.
2941 # It is ok if the user sets this particular variable.
2942 set_seen 'AM_LDFLAGS';
2944 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2946 foreach my $var (variables $primary)
2948 my $varname = $var->name;
2949 # A configure variable is always legitimate.
2950 next if exists $configure_vars{$varname};
2952 for my $cond ($var->conditions->conds)
2954 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2955 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2956 . " program or\nlibrary has '$1' as canonical name"
2957 . " (possible typo)")
2958 unless $var->rdef ($cond)->seen;
2968 # NOTE we no longer automatically clean SCRIPTS, because it is
2969 # useful to sometimes distribute scripts verbatim. This happens
2970 # e.g. in Automake itself.
2971 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2972 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2979 ## ------------------------ ##
2980 ## Handling Texinfo files. ##
2981 ## ------------------------ ##
2983 # ($OUTFILE, $VFILE)
2984 # &scan_texinfo_file ($FILENAME)
2985 # ------------------------------
2986 # $OUTFILE - name of the info file produced by $FILENAME.
2987 # $VFILE - name of the version.texi file used (undef if none).
2988 sub scan_texinfo_file ($)
2990 my ($filename) = @_;
2992 my $texi = new Automake::XFile "< $filename";
2993 verb "reading $filename";
2995 my ($outfile, $vfile);
2996 while ($_ = $texi->getline)
2998 if (/^\@setfilename +(\S+)/)
3000 # Honor only the first @setfilename. (It's possible to have
3001 # more occurrences later if the manual shows examples of how
3002 # to use @setfilename...)
3006 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3008 error ("$filename:$.",
3009 "output '$outfile' has unrecognized extension");
3013 # A "version.texi" file is actually any file whose name matches
3015 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3023 err_am "'$filename' missing \@setfilename";
3027 my $infobase = basename ($filename);
3028 $infobase =~ s/\.te?xi(nfo)?$//;
3029 return ($outfile, $vfile);
3033 # ($DIRSTAMP, @CLEAN_FILES)
3034 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3035 # ------------------------------------------------------------------
3036 # SOURCE - the source Texinfo file
3037 # DEST - the destination Info file
3038 # INSRC - whether DEST should be built in the source tree
3039 # DEPENDENCIES - known dependencies
3040 sub output_texinfo_build_rules ($$$@)
3042 my ($source, $dest, $insrc, @deps) = @_;
3044 # Split 'a.texi' into 'a' and '.texi'.
3045 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3046 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3051 # We can output two kinds of rules: the "generic" rules use Make
3052 # suffix rules and are appropriate when $source and $dest do not lie
3053 # in a sub-directory; the "specific" rules are needed in the other
3056 # The former are output only once (this is not really apparent here,
3057 # but just remember that some logic deeper in Automake will not
3058 # output the same rule twice); while the later need to be output for
3059 # each Texinfo source.
3062 my $sdir = dirname $source;
3063 if ($sdir eq '.' && dirname ($dest) eq '.')
3066 $makeinfoflags = '-I $(srcdir)';
3071 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3074 # A directory can contain two kinds of info files: some built in the
3075 # source tree, and some built in the build tree. The rules are
3076 # different in each case. However we cannot output two different
3077 # set of generic rules. Because in-source builds are more usual, we
3078 # use generic rules in this case and fall back to "specific" rules
3079 # for build-dir builds. (It should not be a problem to invert this
3081 $generic = 0 unless $insrc;
3083 # We cannot use a suffix rule to build info files with an empty
3084 # extension. Otherwise we would output a single suffix inference
3085 # rule, with separate dependencies, as in
3089 # foo.info: foo.texi
3091 # which confuse Solaris make. (See the Autoconf manual for
3092 # details.) Therefore we use a specific rule in this case. This
3093 # applies to info files only (dvi and pdf files always have an
3095 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3097 # If the resulting file lie into a subdirectory,
3098 # make sure this directory will exist.
3099 my $dirstamp = require_build_directory_maybe ($dest);
3101 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3103 $output_rules .= file_contents ('texibuild',
3104 new Automake::Location,
3105 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3106 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3107 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3109 DEST_PREFIX => $dpfx,
3110 DEST_INFO_PREFIX => $dipfx,
3111 DEST_SUFFIX => $dsfx,
3112 DIRSTAMP => $dirstamp,
3113 GENERIC => $generic,
3114 GENERIC_INFO => $generic_info,
3116 MAKEINFOFLAGS => $makeinfoflags,
3117 SILENT => silent_flag(),
3120 SOURCE_INFO => ($generic_info
3122 SOURCE_REAL => $source,
3123 SOURCE_SUFFIX => $ssfx,
3124 TEXIQUIET => verbose_flag('texinfo'),
3125 TEXIDEVNULL => verbose_flag('texidevnull'),
3127 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3131 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3132 # handle_texinfo_helper ($info_texinfos)
3133 # --------------------------------------
3134 # Handle all Texinfo source; helper for handle_texinfo.
3135 sub handle_texinfo_helper ($)
3137 my ($info_texinfos) = @_;
3138 my (@infobase, @info_deps_list, @texi_deps);
3141 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3143 # Build a regex matching user-cleaned files.
3144 my $d = var 'DISTCLEANFILES';
3145 my $c = var 'CLEANFILES';
3147 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3148 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3149 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3150 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3153 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3155 my $infobase = $texi;
3156 $infobase =~ s/\.(txi|texinfo|texi)$//;
3158 if ($infobase eq $texi)
3160 # FIXME: report line number.
3161 err_am "texinfo file '$texi' has unrecognized extension";
3165 push @infobase, $infobase;
3167 # If 'version.texi' is referenced by input file, then include
3168 # automatic versioning capability.
3169 my ($out_file, $vtexi) =
3170 scan_texinfo_file ("$relative_dir/$texi")
3172 # Directory of auxiliary files and build by-products used by texi2dvi
3174 push @mostly_cleans, "$infobase.t2d";
3175 push @mostly_cleans, "$infobase.t2p";
3177 # If the Texinfo source is in a subdirectory, create the
3178 # resulting info in this subdirectory. If it is in the current
3179 # directory, try hard to not prefix "./" because it breaks the
3181 my $outdir = dirname ($texi) . '/';
3182 $outdir = "" if $outdir eq './';
3183 $out_file = $outdir . $out_file;
3185 # Until Automake 1.6.3, .info files were built in the
3186 # source tree. This was an obstacle to the support of
3187 # non-distributed .info files, and non-distributed .texi
3190 # * Non-distributed .texi files is important in some packages
3191 # where .texi files are built at make time, probably using
3192 # other binaries built in the package itself, maybe using
3193 # tools or information found on the build host. Because
3194 # these files are not distributed they are always rebuilt
3195 # at make time; they should therefore not lie in the source
3196 # directory. One plan was to support this using
3197 # nodist_info_TEXINFOS or something similar. (Doing this
3198 # requires some sanity checks. For instance Automake should
3200 # dist_info_TEXINFOS = foo.texi
3201 # nodist_foo_TEXINFOS = included.texi
3202 # because a distributed file should never depend on a
3203 # non-distributed file.)
3205 # * If .texi files are not distributed, then .info files should
3206 # not be distributed either. There are also cases where one
3207 # wants to distribute .texi files, but does not want to
3208 # distribute the .info files. For instance the Texinfo package
3209 # distributes the tool used to build these files; it would
3210 # be a waste of space to distribute them. It's not clear
3211 # which syntax we should use to indicate that .info files should
3212 # not be distributed. Akim Demaille suggested that eventually
3213 # we switch to a new syntax:
3214 # | Maybe we should take some inspiration from what's already
3215 # | done in the rest of Automake. Maybe there is too much
3216 # | syntactic sugar here, and you want
3217 # | nodist_INFO = bar.info
3218 # | dist_bar_info_SOURCES = bar.texi
3219 # | bar_texi_DEPENDENCIES = foo.texi
3220 # | with a bit of magic to have bar.info represent the whole
3221 # | bar*info set. That's a lot more verbose that the current
3222 # | situation, but it is # not new, hence the user has less
3225 # | But there is still too much room for meaningless specs:
3226 # | nodist_INFO = bar.info
3227 # | dist_bar_info_SOURCES = bar.texi
3228 # | dist_PS = bar.ps something-written-by-hand.ps
3229 # | nodist_bar_ps_SOURCES = bar.texi
3230 # | bar_texi_DEPENDENCIES = foo.texi
3231 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3233 # Back to the point, it should be clear that in order to support
3234 # non-distributed .info files, we need to build them in the
3235 # build tree, not in the source tree (non-distributed .texi
3236 # files are less of a problem, because we do not output build
3237 # rules for them). In Automake 1.7 .info build rules have been
3238 # largely cleaned up so that .info files get always build in the
3239 # build tree, even when distributed. The idea was that
3240 # (1) if during a VPATH build the .info file was found to be
3241 # absent or out-of-date (in the source tree or in the
3242 # build tree), Make would rebuild it in the build tree.
3243 # If an up-to-date source-tree of the .info file existed,
3244 # make would not rebuild it in the build tree.
3245 # (2) having two copies of .info files, one in the source tree
3246 # and one (newer) in the build tree is not a problem
3247 # because 'make dist' always pick files in the build tree
3249 # However it turned out the be a bad idea for several reasons:
3250 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3251 # like GNU Make on point (1) above. These implementations
3252 # of Make would always rebuild .info files in the build
3253 # tree, even if such files were up to date in the source
3254 # tree. Consequently, it was impossible to perform a VPATH
3255 # build of a package containing Texinfo files using these
3256 # Make implementations.
3257 # (Refer to the Autoconf Manual, section "Limitation of
3258 # Make", paragraph "VPATH", item "target lookup", for
3259 # an account of the differences between these
3261 # * The GNU Coding Standards require these files to be built
3262 # in the source-tree (when they are distributed, that is).
3263 # * Keeping a fresher copy of distributed files in the
3264 # build tree can be annoying during development because
3265 # - if the files is kept under CVS, you really want it
3266 # to be updated in the source tree
3267 # - it is confusing that 'make distclean' does not erase
3268 # all files in the build tree.
3270 # Consequently, starting with Automake 1.8, .info files are
3271 # built in the source tree again. Because we still plan to
3272 # support non-distributed .info files at some point, we
3273 # have a single variable ($INSRC) that controls whether
3274 # the current .info file must be built in the source tree
3275 # or in the build tree. Actually this variable is switched
3276 # off for .info files that appear to be cleaned; this is
3277 # for backward compatibility with package such as Texinfo,
3278 # which do things like
3279 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3280 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3281 # # Do not create info files for distribution.
3283 # in order not to distribute .info files.
3284 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3286 my $soutdir = '$(srcdir)/' . $outdir;
3287 $outdir = $soutdir if $insrc;
3289 # If user specified file_TEXINFOS, then use that as explicit
3292 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3294 my $canonical = canonicalize ($infobase);
3295 if (var ($canonical . "_TEXINFOS"))
3297 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3298 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3301 my ($dirstamp, @cfiles) =
3302 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3303 push (@texi_cleans, @cfiles);
3305 push (@info_deps_list, $out_file);
3307 # If a vers*.texi file is needed, emit the rule.
3310 err_am ("'$vtexi', included in '$texi', "
3311 . "also included in '$versions{$vtexi}'")
3312 if defined $versions{$vtexi};
3313 $versions{$vtexi} = $texi;
3315 # We number the stamp-vti files. This is doable since the
3316 # actual names don't matter much. We only number starting
3317 # with the second one, so that the common case looks nice.
3318 my $vti = ($done ? $done : 'vti');
3321 # This is ugly, but it is our historical practice.
3322 if ($config_aux_dir_set_in_configure_ac)
3324 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3329 require_file_with_macro (TRUE, 'info_TEXINFOS',
3330 FOREIGN, 'mdate-sh');
3334 if ($config_aux_dir_set_in_configure_ac)
3336 $conf_dir = "$am_config_aux_dir/";
3340 $conf_dir = '$(srcdir)/';
3342 $output_rules .= file_contents ('texi-vers',
3343 new Automake::Location,
3346 STAMPVTI => "${soutdir}stamp-$vti",
3347 VTEXI => "$soutdir$vtexi",
3349 DIRSTAMP => $dirstamp);
3353 # Handle location of texinfo.tex.
3354 my $need_texi_file = 0;
3356 if (var ('TEXINFO_TEX'))
3358 # The user defined TEXINFO_TEX so assume he knows what he is
3360 $texinfodir = ('$(srcdir)/'
3361 . dirname (variable_value ('TEXINFO_TEX')));
3363 elsif ($config_aux_dir_set_in_configure_ac)
3365 $texinfodir = $am_config_aux_dir;
3366 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3367 $need_texi_file = 2; # so that we require_conf_file later
3371 $texinfodir = '$(srcdir)';
3372 $need_texi_file = 1;
3374 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3376 push (@dist_targets, 'dist-info');
3378 if (! option 'no-installinfo')
3380 # Make sure documentation is made and installed first. Use
3381 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3382 # get run twice during "make all".
3383 unshift (@all, '$(INFO_DEPS)');
3386 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3387 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3388 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3389 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3391 # This next isn't strictly needed now -- the places that look here
3392 # could easily be changed to look in info_TEXINFOS. But this is
3393 # probably better, in case noinst_TEXINFOS is ever supported.
3394 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3396 # Do some error checking. Note that this file is not required
3397 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3399 if ($need_texi_file && ! option 'no-texinfo.tex')
3401 if ($need_texi_file > 1)
3403 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3408 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3413 return (makefile_wrap ("", "\t ", @mostly_cleans),
3414 makefile_wrap ("", "\t ", @texi_cleans),
3415 makefile_wrap ("", "\t ", @maint_cleans));
3421 # Handle all Texinfo source.
3422 sub handle_texinfo ()
3424 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3425 # FIXME: I think this is an obsolete future feature name.
3426 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3428 my $info_texinfos = var ('info_TEXINFOS');
3429 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3432 define_verbose_texinfo;
3433 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3439 $output_rules .= file_contents ('texinfos',
3440 new Automake::Location,
3441 AM_V_DVIPS => verbose_flag('DVIPS'),
3442 MOSTLYCLEAN => $mostlyclean,
3443 TEXICLEAN => $clean,
3444 MAINTCLEAN => $maintclean,
3445 'LOCAL-TEXIS' => !!$info_texinfos,
3446 TEXIQUIET => verbose_flag('texinfo'));
3450 # Handle any man pages.
3451 sub handle_man_pages
3453 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3455 # Find all the sections in use. We do this by first looking for
3456 # "standard" sections, and then looking for any additional
3457 # sections used in man_MANS.
3458 my (%sections, %notrans_sections, %trans_sections,
3459 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3460 # We handle nodist_ for uniformity. man pages aren't distributed
3461 # by default so it isn't actually very important.
3462 foreach my $npfx ('', 'notrans_')
3464 foreach my $pfx ('', 'dist_', 'nodist_')
3466 # Add more sections as needed.
3467 foreach my $section ('0'..'9', 'n', 'l')
3469 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3472 $sections{$section} = 1;
3473 $varname = '$(' . $varname . ')';
3474 if ($npfx eq 'notrans_')
3476 $notrans_sections{$section} = 1;
3477 $notrans_sect_vars{$varname} = 1;
3481 $trans_sections{$section} = 1;
3482 $trans_sect_vars{$varname} = 1;
3485 &push_dist_common ($varname)
3490 my $varname = $npfx . $pfx . 'man_MANS';
3491 my $var = var ($varname);
3494 foreach ($var->value_as_list_recursive)
3496 # A page like 'foo.1c' goes into man1dir.
3497 if (/\.([0-9a-z])([a-z]*)$/)
3500 if ($npfx eq 'notrans_')
3502 $notrans_sections{$1} = 1;
3506 $trans_sections{$1} = 1;
3511 $varname = '$(' . $varname . ')';
3512 if ($npfx eq 'notrans_')
3514 $notrans_vars{$varname} = 1;
3518 $trans_vars{$varname} = 1;
3520 &push_dist_common ($varname)
3526 return unless %sections;
3530 # Build section independent variables.
3531 my $have_notrans = %notrans_vars;
3532 my @notrans_list = sort keys %notrans_vars;
3533 my $have_trans = %trans_vars;
3534 my @trans_list = sort keys %trans_vars;
3536 # Now for each section, generate an install and uninstall rule.
3537 # Sort sections so output is deterministic.
3538 foreach my $section (sort keys %sections)
3540 # Build section dependent variables.
3541 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3542 my $trans_mans = $have_trans || exists $trans_sections{$section};
3543 my (%notrans_this_sect, %trans_this_sect);
3544 my $expr = 'man' . $section . '_MANS';
3545 foreach my $varname (keys %notrans_sect_vars)
3547 if ($varname =~ /$expr/)
3549 $notrans_this_sect{$varname} = 1;
3552 foreach my $varname (keys %trans_sect_vars)
3554 if ($varname =~ /$expr/)
3556 $trans_this_sect{$varname} = 1;
3559 my @notrans_sect_list = sort keys %notrans_this_sect;
3560 my @trans_sect_list = sort keys %trans_this_sect;
3561 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3562 keys %notrans_this_sect, keys %trans_this_sect);
3563 my @deps = sort @unsorted_deps;
3564 $output_rules .= &file_contents ('mans',
3565 new Automake::Location,
3566 SECTION => $section,
3568 NOTRANS_MANS => $notrans_mans,
3569 NOTRANS_SECT_LIST => "@notrans_sect_list",
3570 HAVE_NOTRANS => $have_notrans,
3571 NOTRANS_LIST => "@notrans_list",
3572 TRANS_MANS => $trans_mans,
3573 TRANS_SECT_LIST => "@trans_sect_list",
3574 HAVE_TRANS => $have_trans,
3575 TRANS_LIST => "@trans_list");
3578 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3579 keys %notrans_sect_vars, keys %trans_sect_vars);
3580 my @mans = sort @unsorted_deps;
3581 $output_vars .= file_contents ('mans-vars',
3582 new Automake::Location,
3585 push (@all, '$(MANS)')
3586 unless option 'no-installman';
3589 # Handle DATA variables.
3592 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3593 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3594 'ps', 'sysconf', 'sharedstate', 'localstate',
3595 'pkgdata', 'lisp', 'noinst', 'check');
3602 foreach my $spec (@config_headers)
3604 my ($out, @ins) = split_config_file_spec ($spec);
3605 foreach my $in (@ins)
3607 # If the config header source is in this directory,
3609 push @config, basename ($in)
3610 if $relative_dir eq dirname ($in);
3614 define_variable ('am__tagged_files',
3615 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3616 . "@config", INTERNAL);
3618 if (rvar('am__tagged_files')->value_as_list_recursive
3619 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3621 $output_rules .= &file_contents ('tags', new Automake::Location);
3622 set_seen 'TAGS_DEPENDENCIES';
3626 reject_var ('TAGS_DEPENDENCIES',
3627 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3628 . " without\nsources or 'ETAGS_ARGS'");
3629 # Every Makefile must define some sort of TAGS rule.
3630 # Otherwise, it would be possible for a top-level "make TAGS"
3631 # to fail because some subdirectory failed. Ditto ctags and
3635 "ctags CTAGS:\n\n" .
3636 "cscope cscopelist:\n\n";
3641 # user_phony_rule ($NAME)
3642 # -----------------------
3643 # Return false if rule $NAME does not exist. Otherwise,
3644 # declare it as phony, complete its definition (in case it is
3645 # conditional), and return its Automake::Rule instance.
3646 sub user_phony_rule ($)
3649 my $rule = rule $name;
3652 depend ('.PHONY', $name);
3653 # Define $NAME in all condition where it is not already defined,
3654 # so that it is always OK to depend on $NAME.
3655 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3657 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3659 $output_rules .= $c->subst_string . "$name:\n";
3668 # Handle 'dist' target.
3671 # Substitutions for distdir.am
3674 # Define DIST_SUBDIRS. This must always be done, regardless of the
3675 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3676 my $subdirs = var ('SUBDIRS');
3679 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3680 # to all possible directories, and use it. If DIST_SUBDIRS is
3681 # defined, just use it.
3683 # Note that we check DIST_SUBDIRS first on purpose, so that
3684 # we don't call has_conditional_contents for now reason.
3685 # (In the past one project used so many conditional subdirectories
3686 # that calling has_conditional_contents on SUBDIRS caused
3687 # automake to grow to 150Mb -- this should not happen with
3688 # the current implementation of has_conditional_contents,
3689 # but it's more efficient to avoid the call anyway.)
3690 if (var ('DIST_SUBDIRS'))
3693 elsif ($subdirs->has_conditional_contents)
3695 define_pretty_variable
3696 ('DIST_SUBDIRS', TRUE, INTERNAL,
3697 uniq ($subdirs->value_as_list_recursive));
3701 # We always define this because that is what 'distclean'
3703 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3708 # The remaining definitions are only required when a dist target is used.
3709 return if option 'no-dist';
3711 # At least one of the archive formats must be enabled.
3712 if ($relative_dir eq '.')
3714 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3715 $archive_defined ||=
3716 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3717 error (option 'no-dist-gzip',
3718 "no-dist-gzip specified but no dist-* specified,\n"
3719 . "at least one archive format must be enabled")
3720 unless $archive_defined;
3723 # Look for common files that should be included in distribution.
3724 # If the aux dir is set, and it does not have a Makefile.am, then
3725 # we check for these files there as well.
3727 if ($relative_dir eq '.'
3728 && $config_aux_dir_set_in_configure_ac)
3730 if (! &is_make_dir ($config_aux_dir))
3735 foreach my $cfile (@common_files)
3737 if (dir_has_case_matching_file ($relative_dir, $cfile)
3738 # The file might be absent, but if it can be built it's ok.
3741 &push_dist_common ($cfile);
3744 # Don't use 'elsif' here because a file might meaningfully
3745 # appear in both directories.
3746 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3748 &push_dist_common ("$config_aux_dir/$cfile")
3752 # We might copy elements from $configure_dist_common to
3753 # %dist_common if we think we need to. If the file appears in our
3754 # directory, we would have discovered it already, so we don't
3755 # check that. But if the file is in a subdir without a Makefile,
3756 # we want to distribute it here if we are doing '.'. Ugly!
3757 # Also, in some corner cases, it's possible that the following code
3758 # will cause the same file to appear in the $(DIST_COMMON) variables
3759 # of two distinct Makefiles; but this is not a problem, since the
3760 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3761 # file being distributed multiple times.
3762 # See also automake bug#9651.
3763 if ($relative_dir eq '.')
3765 foreach my $file (split (' ' , $configure_dist_common))
3767 my $dir = dirname ($file);
3768 push_dist_common ($file)
3769 if ($dir eq '.' || ! is_make_dir ($dir));
3773 # Files to distributed. Don't use ->value_as_list_recursive
3774 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3775 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3776 @dist_common = uniq @dist_common;
3777 variable_delete 'DIST_COMMON';
3778 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3780 # Now that we've processed DIST_COMMON, disallow further attempts
3782 $handle_dist_run = 1;
3784 # Scan EXTRA_DIST to see if we need to distribute anything from a
3785 # subdir. If so, add it to the list. I didn't want to do this
3786 # originally, but there were so many requests that I finally
3788 my $extra_dist = var ('EXTRA_DIST');
3790 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3791 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3793 # If the target 'dist-hook' exists, make sure it is run. This
3794 # allows users to do random weird things to the distribution
3795 # before it is packaged up.
3796 push (@dist_targets, 'dist-hook')
3797 if user_phony_rule 'dist-hook';
3798 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3800 my $flm = option ('filename-length-max');
3801 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3803 $output_rules .= &file_contents ('distdir',
3804 new Automake::Location,
3806 FILENAME_FILTER => $filename_filter);
3810 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3811 # -------------------------------------------------------
3812 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3813 # name. Use $WHERE as a location in the diagnostic, if any.
3814 sub check_directory ($$;$)
3816 my ($dir, $where, $reldir) = @_;
3817 $reldir = '.' unless defined $reldir;
3819 error $where, "required directory $reldir/$dir does not exist"
3820 unless -d "$reldir/$dir";
3822 # If an 'obj/' directory exists, BSD make will enter it before
3823 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3829 # % cat obj/Makefile
3835 # % pmake # BSD make
3838 msg ('portability', $where,
3839 "naming a subdirectory 'obj' causes troubles with BSD make")
3842 # 'aux' is probably the most important of the following forbidden name,
3843 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3844 msg ('portability', $where,
3845 "name '$dir' is reserved on W32 and DOS platforms")
3846 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3849 # check_directories_in_var ($VARIABLE)
3850 # ------------------------------------
3851 # Recursively check all items in variables $VARIABLE as directories
3852 sub check_directories_in_var ($)
3855 $var->traverse_recursively
3858 my ($var, $val, $cond, $full_cond) = @_;
3859 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3863 skip_ac_subst => 1);
3866 # &handle_subdirs ()
3867 # ------------------
3868 # Handle subdirectories.
3869 sub handle_subdirs ()
3871 my $subdirs = var ('SUBDIRS');
3875 check_directories_in_var $subdirs;
3877 my $dsubdirs = var ('DIST_SUBDIRS');
3878 check_directories_in_var $dsubdirs
3881 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3882 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3886 # ($REGEN, @DEPENDENCIES)
3889 # If aclocal.m4 creation is automated, return the list of its dependencies.
3890 sub scan_aclocal_m4 ()
3892 my $regen_aclocal = 0;
3894 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3895 set_seen 'CONFIGURE_DEPENDENCIES';
3897 if (-f 'aclocal.m4')
3899 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3901 my $aclocal = new Automake::XFile "< aclocal.m4";
3902 my $line = $aclocal->getline;
3903 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3908 if (set_seen ('ACLOCAL_M4_SOURCES'))
3910 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3911 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3912 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
3913 . "It should be safe to simply remove it");
3916 # Note that it might be possible that aclocal.m4 doesn't exist but
3917 # should be auto-generated. This case probably isn't very
3920 return ($regen_aclocal, @ac_deps);
3924 # Helper function for substitute_ac_subst_variables.
3925 sub substitute_ac_subst_variables_worker($)
3928 return "\@$token\@" if var $token;
3929 return "\${$token\}";
3932 # substitute_ac_subst_variables ($TEXT)
3933 # -------------------------------------
3934 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3936 sub substitute_ac_subst_variables ($)
3939 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3944 # &prepend_srcdir (@INPUTS)
3945 # -------------------------
3946 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3947 # if an input file has a directory part the same as the current
3948 # directory, then the directory part is simply replaced by $(srcdir).
3949 # But if the directory part is different, then $(top_srcdir) is
3951 sub prepend_srcdir (@)
3956 foreach my $single (@inputs)
3958 if (dirname ($single) eq $relative_dir)
3960 push (@newinputs, '$(srcdir)/' . basename ($single));
3964 push (@newinputs, '$(top_srcdir)/' . $single);
3971 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3972 # ---------------------------------------------------
3973 # Compute a list of dependencies appropriate for the rebuild
3975 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3976 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
3977 sub rewrite_inputs_into_dependencies ($@)
3979 my ($file, @inputs) = @_;
3984 # We cannot create dependencies on shell variables.
3985 next if (substitute_ac_subst_variables $i) =~ /\$/;
3987 if (exists $ac_config_files_location{$i} && $i ne $file)
3989 my $di = dirname $i;
3990 if ($di eq $relative_dir)
3994 # In the top-level Makefile we do not use $(top_builddir), because
3995 # we are already there, and since the targets are built without
3996 # a $(top_builddir), it helps BSD Make to match them with
3998 elsif ($relative_dir ne '.')
4000 $i = '$(top_builddir)/' . $i;
4005 msg ('error', $ac_config_files_location{$file},
4006 "required file '$i' not found")
4007 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4008 ($i) = prepend_srcdir ($i);
4009 push_dist_common ($i);
4018 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4019 # ------------------------------------------------------------------
4020 # Handle remaking and configure stuff.
4021 # We need the name of the input file, to do proper remaking rules.
4022 sub handle_configure ($$$@)
4024 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4026 prog_error 'empty @inputs'
4029 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4031 my $rel_makefile = basename $makefile;
4033 my $colon_infile = ':' . join (':', @inputs);
4034 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4035 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4036 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4037 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4038 @configure_deps, @aclocal_m4_deps,
4039 '$(top_srcdir)/' . $configure_ac);
4040 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4041 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4042 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4045 my $automake_options = '--' . $strictness_name .
4046 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4048 $output_rules .= file_contents
4050 new Automake::Location,
4051 MAKEFILE => $rel_makefile,
4052 'MAKEFILE-DEPS' => "@rewritten",
4053 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4054 'MAKEFILE-IN' => $rel_makefile_in,
4055 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4056 'MAKEFILE-IN-DEPS' => "@include_stack",
4057 'MAKEFILE-AM' => $rel_makefile_am,
4058 'AUTOMAKE-OPTIONS' => $automake_options,
4059 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4060 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4061 VERBOSE => verbose_flag ('GEN'));
4063 if ($relative_dir eq '.')
4065 &push_dist_common ('acconfig.h')
4069 # If we have a configure header, require it.
4071 my @distclean_config;
4072 foreach my $spec (@config_headers)
4075 # $CONFIG_H_PATH: config.h from top level.
4076 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4077 my $config_h_dir = dirname ($config_h_path);
4079 # If the header is in the current directory we want to build
4080 # the header here. Otherwise, if we're at the topmost
4081 # directory and the header's directory doesn't have a
4082 # Makefile, then we also want to build the header.
4083 if ($relative_dir eq $config_h_dir
4084 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4086 my ($cn_sans_dir, $stamp_dir);
4087 if ($relative_dir eq $config_h_dir)
4089 $cn_sans_dir = basename ($config_h_path);
4094 $cn_sans_dir = $config_h_path;
4095 if ($config_h_dir eq '.')
4101 $stamp_dir = $config_h_dir . '/';
4105 # This will also distribute all inputs.
4106 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4108 # Cannot define rebuild rules for filenames with shell variables.
4109 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4111 # Header defined in this directory.
4113 if (-f $config_h_path . '.top')
4115 push (@files, "$cn_sans_dir.top");
4117 if (-f $config_h_path . '.bot')
4119 push (@files, "$cn_sans_dir.bot");
4122 push_dist_common (@files);
4124 # For now, acconfig.h can only appear in the top srcdir.
4125 if (-f 'acconfig.h')
4127 push (@files, '$(top_srcdir)/acconfig.h');
4130 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4132 file_contents ('remake-hdr',
4133 new Automake::Location,
4135 CONFIG_H => $cn_sans_dir,
4136 CONFIG_HIN => $ins[0],
4137 CONFIG_H_DEPS => "@ins",
4138 CONFIG_H_PATH => $config_h_path,
4141 push @distclean_config, $cn_sans_dir, $stamp;
4145 $output_rules .= file_contents ('clean-hdr',
4146 new Automake::Location,
4147 FILES => "@distclean_config")
4148 if @distclean_config;
4150 # Distribute and define mkinstalldirs only if it is already present
4151 # in the package, for backward compatibility (some people may still
4152 # use $(mkinstalldirs)).
4153 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4156 # Use require_file so that any existing script gets updated
4157 # by --force-missing.
4158 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4159 define_variable ('mkinstalldirs',
4160 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4164 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4165 # at least one argument, and $(mkinstalldirs) used to work
4166 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4167 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4170 reject_var ('CONFIG_HEADER',
4171 "'CONFIG_HEADER' is an anachronism; now determined "
4172 . "automatically\nfrom '$configure_ac'");
4175 foreach my $spec (@config_headers)
4177 my ($out, @ins) = split_config_file_spec ($spec);
4178 # Generate CONFIG_HEADER define.
4179 if ($relative_dir eq dirname ($out))
4181 push @config_h, basename ($out);
4185 push @config_h, "\$(top_builddir)/$out";
4188 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4191 # Now look for other files in this directory which must be remade
4192 # by config.status, and generate rules for them.
4193 my @actual_other_files = ();
4194 # These get cleaned only in a VPATH build.
4195 my @actual_other_vpath_files = ();
4196 foreach my $lfile (@other_input_files)
4200 if ($lfile =~ /^([^:]*):(.*)$/)
4202 # This is the ":" syntax of AC_OUTPUT.
4204 @inputs = split (':', $2);
4210 @inputs = $file . '.in';
4213 # Automake files should not be stored in here, but in %MAKE_LIST.
4214 prog_error ("$lfile in \@other_input_files\n"
4215 . "\@other_input_files = (@other_input_files)")
4216 if -f $file . '.am';
4218 my $local = basename ($file);
4220 # We skip files that aren't in this directory. However, if
4221 # the file's directory does not have a Makefile, and we are
4222 # currently doing '.', then we create a rule to rebuild the
4223 # file in the subdir.
4224 my $fd = dirname ($file);
4225 if ($fd ne $relative_dir)
4227 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4237 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4239 # Cannot output rules for shell variables.
4240 next if (substitute_ac_subst_variables $local) =~ /\$/;
4243 my $cond = $ac_config_files_condition{$lfile};
4246 $condstr = $cond->subst_string;
4247 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4248 $ac_config_files_location{$file});
4250 $output_rules .= ($condstr . $local . ': '
4251 . '$(top_builddir)/config.status '
4252 . "@rewritten_inputs\n"
4254 . 'cd $(top_builddir) && '
4255 . '$(SHELL) ./config.status '
4256 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4259 push (@actual_other_files, $local);
4262 # For links we should clean destinations and distribute sources.
4263 foreach my $spec (@config_links)
4265 my ($link, $file) = split /:/, $spec;
4266 # Some people do AC_CONFIG_LINKS($computed). We only handle
4267 # the DEST:SRC form.
4269 my $where = $ac_config_files_location{$link};
4271 # Skip destinations that contain shell variables.
4272 if ((substitute_ac_subst_variables $link) !~ /\$/)
4274 # We skip links that aren't in this directory. However, if
4275 # the link's directory does not have a Makefile, and we are
4276 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4277 # in '.'s Makefile.in.
4278 my $local = basename ($link);
4279 my $fd = dirname ($link);
4280 if ($fd ne $relative_dir)
4282 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4293 push @actual_other_files, $local if $local;
4297 push @actual_other_vpath_files, $local if $local;
4301 # Do not process sources that contain shell variables.
4302 if ((substitute_ac_subst_variables $file) !~ /\$/)
4304 my $fd = dirname ($file);
4306 # We distribute files that are in this directory.
4307 # At the top-level ('.') we also distribute files whose
4308 # directory does not have a Makefile.
4309 if (($fd eq $relative_dir)
4310 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4312 # The following will distribute $file as a side-effect when
4313 # it is appropriate (i.e., when $file is not already an output).
4314 # We do not need the result, just the side-effect.
4315 rewrite_inputs_into_dependencies ($link, $file);
4320 # These files get removed by "make distclean".
4321 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4322 @actual_other_files);
4323 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4324 @actual_other_vpath_files);
4330 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4331 'oldinclude', 'pkginclude',
4335 next unless $_->[1] =~ /\..*$/;
4336 &saw_extension ($&);
4342 return if ! $seen_gettext || $relative_dir ne '.';
4344 my $subdirs = var 'SUBDIRS';
4348 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4352 # Perform some sanity checks to help users get the right setup.
4353 # We disable these tests when po/ doesn't exist in order not to disallow
4354 # unusual gettext setups.
4359 # | 1) If a package doesn't have a directory po/ at top level, it
4360 # | will likely have multiple po/ directories in subpackages.
4362 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4363 # | is used without 'external'. It is also useful to warn for the
4364 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4365 # | warnings apply only to the usual layout of packages, therefore
4366 # | they should both be disabled if no po/ directory is found at
4371 my @subdirs = $subdirs->value_as_list_recursive;
4373 msg_var ('syntax', $subdirs,
4374 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4375 if ! grep ($_ eq 'po', @subdirs);
4377 # intl/ is not required when AM_GNU_GETTEXT is called with the
4378 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4379 msg_var ('syntax', $subdirs,
4380 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4381 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4382 && ! grep ($_ eq 'intl', @subdirs));
4384 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4385 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4386 msg_var ('syntax', $subdirs,
4387 "'intl' should not be in SUBDIRS when "
4388 . "AM_GNU_GETTEXT([external]) is used")
4389 if ($seen_gettext_external && ! $seen_gettext_intl
4390 && grep ($_ eq 'intl', @subdirs));
4393 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4396 # Handle footer elements.
4399 reject_rule ('.SUFFIXES',
4400 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4402 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4403 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4404 # anything else, by sticking it right after the default: target.
4405 $output_header .= ".SUFFIXES:\n";
4406 my $suffixes = var 'SUFFIXES';
4407 my @suffixes = Automake::Rule::suffixes;
4408 if (@suffixes || $suffixes)
4410 # Make sure SUFFIXES has unique elements. Sort them to ensure
4411 # the output remains consistent. However, $(SUFFIXES) is
4412 # always at the start of the list, unsorted. This is done
4413 # because make will choose rules depending on the ordering of
4414 # suffixes, and this lets the user have some control. Push
4415 # actual suffixes, and not $(SUFFIXES). Some versions of make
4416 # do not like variable substitutions on the .SUFFIXES line.
4417 my @user_suffixes = ($suffixes
4418 ? $suffixes->value_as_list_recursive : ());
4420 my %suffixes = map { $_ => 1 } @suffixes;
4421 delete @suffixes{@user_suffixes};
4423 $output_header .= (".SUFFIXES: "
4424 . join (' ', @user_suffixes, sort keys %suffixes)
4428 $output_trailer .= file_contents ('footer', new Automake::Location);
4432 # Generate 'make install' rules.
4433 sub handle_install ()
4435 $output_rules .= &file_contents
4437 new Automake::Location,
4438 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4439 ? (" \$(BUILT_SOURCES)\n"
4440 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4442 'installdirs-local' => (user_phony_rule 'installdirs-local'
4443 ? ' installdirs-local' : ''),
4444 am__installdirs => variable_value ('am__installdirs') || '');
4448 # Deal with all and all-am.
4451 my ($makefile) = @_;
4455 # Put this at the beginning for the sake of non-GNU makes. This
4456 # is still wrong if these makes can run parallel jobs. But it is
4458 unshift (@all, basename ($makefile));
4460 foreach my $spec (@config_headers)
4462 my ($out, @ins) = split_config_file_spec ($spec);
4463 push (@all, basename ($out))
4464 if dirname ($out) eq $relative_dir;
4467 # Install 'all' hooks.
4468 push (@all, "all-local")
4469 if user_phony_rule "all-local";
4471 &pretty_print_rule ("all-am:", "\t\t", @all);
4472 &depend ('.PHONY', 'all-am', 'all');
4477 my @local_headers = ();
4478 push @local_headers, '$(BUILT_SOURCES)'
4479 if var ('BUILT_SOURCES');
4480 foreach my $spec (@config_headers)
4482 my ($out, @ins) = split_config_file_spec ($spec);
4483 push @local_headers, basename ($out)
4484 if dirname ($out) eq $relative_dir;
4489 # We need to make sure config.h is built before we recurse.
4490 # We also want to make sure that built sources are built
4491 # before any ordinary 'all' targets are run. We can't do this
4492 # by changing the order of dependencies to the "all" because
4493 # that breaks when using parallel makes. Instead we handle
4494 # things explicitly.
4495 $output_all .= ("all: @local_headers"
4497 . '$(MAKE) $(AM_MAKEFLAGS) '
4498 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4500 depend ('.MAKE', 'all');
4504 $output_all .= "all: " . (var ('SUBDIRS')
4505 ? 'all-recursive' : 'all-am') . "\n\n";
4509 # Generate helper targets for user recursion, where needed.
4510 sub handle_user_recursion ()
4512 return unless @extra_recursive_targets;
4514 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4515 map { "$_-recursive" } @extra_recursive_targets);
4516 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4517 foreach my $target (@extra_recursive_targets)
4519 # This allows the default target's rules to be overridden in
4521 user_phony_rule ($target);
4522 depend ("$target", "$target-$aux");
4523 depend ("$target-am", "$target-local");
4524 # Every user-defined recursive target 'foo' *must* have a valid
4525 # associated 'foo-local' rule; we define it as an empty rule by
4526 # default, so that the user can transparently extend it in his
4528 pretty_print_rule ("$target-local:");
4529 # $target-recursive might as well be undefined, so do not add
4530 # it here; it's taken care of in subdirs.am anyway.
4531 depend (".PHONY", "$target-am", "$target-local");
4536 # &do_check_merge_target ()
4537 # -------------------------
4538 # Handle check merge target specially.
4539 sub do_check_merge_target ()
4541 # Include user-defined local form of target.
4542 push @check_tests, 'check-local'
4543 if user_phony_rule 'check-local';
4545 # The check target must depend on the local equivalent of
4546 # 'all', to ensure all the primary targets are built. Then it
4547 # must build the local check rules.
4548 $output_rules .= "check-am: all-am\n";
4551 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4552 depend ('.MAKE', 'check-am');
4557 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4559 depend ('.MAKE', 'check-am');
4562 depend '.PHONY', 'check', 'check-am';
4563 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4564 $output_rules .= ("check: "
4565 . (var ('BUILT_SOURCES')
4566 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4568 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4570 depend ('.MAKE', 'check')
4571 if var ('BUILT_SOURCES');
4574 # handle_clean ($MAKEFILE)
4575 # ------------------------
4576 # Handle all 'clean' targets.
4577 sub handle_clean ($)
4579 my ($makefile) = @_;
4581 # Clean the files listed in user variables if they exist.
4582 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4583 if var ('MOSTLYCLEANFILES');
4584 $clean_files{'$(CLEANFILES)'} = CLEAN
4585 if var ('CLEANFILES');
4586 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4587 if var ('DISTCLEANFILES');
4588 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4589 if var ('MAINTAINERCLEANFILES');
4591 # Built sources are automatically removed by maintainer-clean.
4592 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4593 if var ('BUILT_SOURCES');
4595 # Compute a list of "rm"s to run for each target.
4596 my %rms = (MOSTLY_CLEAN, [],
4599 MAINTAINER_CLEAN, []);
4601 foreach my $file (keys %clean_files)
4603 my $when = $clean_files{$file};
4604 prog_error 'invalid entry in %clean_files'
4605 unless exists $rms{$when};
4607 my $rm = "rm -f $file";
4608 # If file is a variable, make sure when don't call 'rm -f' without args.
4609 $rm ="test -z \"$file\" || $rm"
4610 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4612 push @{$rms{$when}}, "\t-$rm\n";
4615 $output_rules .= &file_contents
4617 new Automake::Location,
4618 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4619 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4620 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4621 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4622 MAKEFILE => basename $makefile,
4627 # &target_cmp ($A, $B)
4628 # --------------------
4629 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4630 # other '.TARGETS' be last.
4633 return 0 if $a eq $b;
4635 my $a1 = substr ($a, 0, 1);
4636 my $b1 = substr ($b, 0, 1);
4639 return -1 if $b1 eq '.';
4640 return 1 if $a1 eq '.';
4646 # &handle_factored_dependencies ()
4647 # --------------------------------
4648 # Handle everything related to gathered targets.
4649 sub handle_factored_dependencies
4652 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4653 'uninstall-exec-local', 'uninstall-exec-hook',
4654 'uninstall-dvi-local',
4655 'uninstall-html-local',
4656 'uninstall-info-local',
4657 'uninstall-pdf-local',
4658 'uninstall-ps-local')
4662 reject_rule ($utarg, "use '$x', not '$utarg'");
4665 reject_rule ('install-local',
4666 "use 'install-data-local' or 'install-exec-local', "
4667 . "not 'install-local'");
4669 reject_rule ('install-hook',
4670 "use 'install-data-hook' or 'install-exec-hook', "
4671 . "not 'install-hook'");
4673 # Install the -local hooks.
4674 foreach (keys %dependencies)
4676 # Hooks are installed on the -am targets.
4678 depend ("$_-am", "$_-local")
4679 if user_phony_rule "$_-local";
4682 # Install the -hook hooks.
4683 # FIXME: Why not be as liberal as we are with -local hooks?
4684 foreach ('install-exec', 'install-data', 'uninstall')
4686 if (user_phony_rule "$_-hook")
4688 depend ('.MAKE', "$_-am");
4689 register_action("$_-am",
4690 ("\t\@\$(NORMAL_INSTALL)\n"
4691 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4695 # All the required targets are phony.
4696 depend ('.PHONY', keys %required_targets);
4698 # Actually output gathered targets.
4699 foreach (sort target_cmp keys %dependencies)
4701 # If there is nothing about this guy, skip it.
4703 unless (@{$dependencies{$_}}
4705 || $required_targets{$_});
4707 # Define gathered targets in undefined conditions.
4708 # FIXME: Right now we must handle .PHONY as an exception,
4709 # because people write things like
4710 # .PHONY: myphonytarget
4711 # to append dependencies. This would not work if Automake
4712 # refrained from defining its own .PHONY target as it does
4713 # with other overridden targets.
4714 # Likewise for '.MAKE'.
4715 my @undefined_conds = (TRUE,);
4716 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4719 Automake::Rule::define ($_, 'internal',
4720 RULE_AUTOMAKE, TRUE, INTERNAL);
4722 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4723 foreach my $cond (@undefined_conds)
4725 my $condstr = $cond->subst_string;
4726 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4727 $output_rules .= $actions{$_} if defined $actions{$_};
4728 $output_rules .= "\n";
4734 # &handle_tests_dejagnu ()
4735 # ------------------------
4736 sub handle_tests_dejagnu
4738 push (@check_tests, 'check-DEJAGNU');
4739 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4742 sub handle_per_suffix_test
4744 my ($test_suffix, %transform) = @_;
4745 my ($pfx, $generic, $am_exeext);
4746 if ($test_suffix eq '')
4750 $am_exeext = 'FALSE';
4754 prog_error ("test suffix '$test_suffix' lacks leading dot")
4755 unless $test_suffix =~ m/^\.(.*)/;
4756 $pfx = uc ($1) . '_';
4758 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4761 # The "test driver" program, deputed to handle tests protocol used by
4762 # test scripts. By default, it's assumed that no protocol is used, so
4763 # we fall back to the old behaviour, implemented by the 'test-driver'
4765 if (! var "${pfx}LOG_DRIVER")
4767 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4768 define_variable ("${pfx}LOG_DRIVER",
4769 "\$(SHELL) $am_config_aux_dir/test-driver",
4772 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4773 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4774 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4775 my $compile = "${pfx}LOG_COMPILE";
4776 define_variable ($compile,
4777 '$(' . $pfx . 'LOG_COMPILER)'
4778 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4779 . ' $(' . $pfx . 'LOG_FLAGS)',
4781 $output_rules .= file_contents ('check2', new Automake::Location,
4782 GENERIC => $generic,
4784 DRIVER_FLAGS => $driver_flags,
4785 COMPILE => '$(' . $compile . ')',
4786 EXT => $test_suffix,
4787 am__EXEEXT => $am_exeext,
4791 # is_valid_test_extension ($EXT)
4792 # ------------------------------
4793 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4795 sub is_valid_test_extension ($)
4799 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4801 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4805 # Handle TESTS variable and other checks.
4808 if (option 'dejagnu')
4810 &handle_tests_dejagnu;
4814 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4816 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4817 . "'AUTOMAKE_OPTIONS'");
4823 push (@check_tests, 'check-TESTS');
4824 my $check_deps = "@check";
4825 $output_rules .= &file_contents ('check', new Automake::Location,
4826 SERIAL_TESTS => !! option 'serial-tests',
4827 CHECK_DEPS => $check_deps);
4829 # Tests that are known programs should have $(EXEEXT) appended.
4830 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4831 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4832 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4833 if (var ('XFAIL_TESTS'));
4835 if (! option 'serial-tests')
4837 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4840 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4843 $at_exeext = subst ('EXEEXT');
4844 $suff = $at_exeext . ' ' . $suff;
4846 if (! var 'TEST_EXTENSIONS')
4848 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4850 my $var = var 'TEST_EXTENSIONS';
4851 # Currently, we are not able to deal with conditional contents
4852 # in TEST_EXTENSIONS.
4853 if ($var->has_conditional_contents)
4855 msg_var 'unsupported', $var,
4856 "'TEST_EXTENSIONS' cannot have conditional contents";
4858 my @test_suffixes = $var->value_as_list_recursive;
4859 if ((my @invalid_test_suffixes =
4860 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4862 error $var->rdef (TRUE)->location,
4863 "invalid test extensions: @invalid_test_suffixes";
4865 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4868 unshift (@test_suffixes, $at_exeext)
4869 unless $test_suffixes[0] eq $at_exeext;
4871 unshift (@test_suffixes, '');
4873 transform_variable_recursively
4874 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4876 my ($subvar, $val, $cond, $full_cond) = @_;
4879 if $val =~ /^\@.*\@$/;
4880 $obj =~ s/\$\(EXEEXT\)$//o;
4882 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4884 msg ('error', $subvar->rdef ($cond)->location,
4885 "using '$1' in TESTS is currently broken: '$val'");
4888 foreach my $test_suffix (@test_suffixes)
4891 if $test_suffix eq $at_exeext || $test_suffix eq '';
4892 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4893 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4897 handle_per_suffix_test ('',
4907 my $last_suffix = $test_suffixes[$#test_suffixes];
4909 foreach my $test_suffix (@test_suffixes)
4911 if ($test_suffix eq $last_suffix)
4917 $cur = 'am__test_logs' . $nhelper;
4919 define_variable ($cur,
4920 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4924 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4926 handle_per_suffix_test ($test_suffix,
4932 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4933 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4934 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
4939 # Handle Emacs Lisp.
4940 sub handle_emacs_lisp
4942 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4945 return if ! @elfiles;
4947 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4948 map { $_->[1] } @elfiles);
4949 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4950 '$(am__ELFILES:.el=.elc)');
4951 # This one can be overridden by users.
4952 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4954 push @all, '$(ELCFILES)';
4956 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4957 'EMACS', 'lispdir');
4958 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4959 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4965 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4967 return if ! @pyfiles;
4969 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4970 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4971 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4977 my @sourcelist = &am_install_var ('-candist',
4980 return if ! @sourcelist;
4982 my @prefixes = am_primary_prefixes ('JAVA', 1,
4986 my @java_sources = ();
4987 foreach my $prefix (@prefixes)
4989 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
4992 if $curs eq 'EXTRA';
4994 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
4998 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4999 unless $curs eq $dir;
5005 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5008 if ($dir eq 'check')
5010 push (@check, "class$dir.stamp");
5014 push (@all, "class$dir.stamp");
5019 # Handle some of the minor options.
5020 sub handle_minor_options
5022 if (option 'readme-alpha')
5024 if ($relative_dir eq '.')
5026 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5028 msg ('error-gnits', $package_version_location,
5029 "version '$package_version' doesn't follow " .
5032 if (defined $1 && -f 'README-alpha')
5034 # This means we have an alpha release. See
5035 # GNITS_VERSION_PATTERN for details.
5036 push_dist_common ('README-alpha');
5042 ################################################################
5044 # ($OUTPUT, @INPUTS)
5045 # &split_config_file_spec ($SPEC)
5046 # -------------------------------
5047 # Decode the Autoconf syntax for config files (files, headers, links
5049 sub split_config_file_spec ($)
5052 my ($output, @inputs) = split (/:/, $spec);
5054 push @inputs, "$output.in"
5057 return ($output, @inputs);
5061 # locate_am (@POSSIBLE_SOURCES)
5062 # -----------------------------
5063 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5064 # This functions returns the first *.in file for which a *.am exists.
5065 # It returns undef otherwise.
5070 foreach my $file (@rest)
5072 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5083 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5084 # ---------------------------------------------------
5085 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5087 sub scan_autoconf_config_files ($$)
5089 my ($where, $config_files) = @_;
5091 # Look at potential Makefile.am's.
5092 foreach (split ' ', $config_files)
5094 # Must skip empty string for Perl 4.
5095 next if $_ eq "\\" || $_ eq '';
5097 # Handle $local:$input syntax.
5098 my ($local, @rest) = split (/:/);
5099 @rest = ("$local.in",) unless @rest;
5100 # Keep in sync with 'conffile-leading-dot.test'.
5101 msg ('unsupported', $where,
5102 "omit leading './' from config file names such as '$local';"
5103 . "\nremake rules might be subtly broken otherwise")
5104 if ($local =~ /^\.\//);
5105 my $input = locate_am @rest;
5108 # We have a file that automake should generate.
5109 $make_list{$input} = join (':', ($local, @rest));
5113 # We have a file that automake should cause to be
5114 # rebuilt, but shouldn't generate itself.
5115 push (@other_input_files, $_);
5117 $ac_config_files_location{$local} = $where;
5118 $ac_config_files_condition{$local} =
5119 new Automake::Condition (@cond_stack)
5125 # &scan_autoconf_traces ($FILENAME)
5126 # ---------------------------------
5127 sub scan_autoconf_traces ($)
5129 my ($filename) = @_;
5131 # Macros to trace, with their minimal number of arguments.
5133 # IMPORTANT: If you add a macro here, you should also add this macro
5134 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5136 AC_CANONICAL_BUILD => 0,
5137 AC_CANONICAL_HOST => 0,
5138 AC_CANONICAL_TARGET => 0,
5139 AC_CONFIG_AUX_DIR => 1,
5140 AC_CONFIG_FILES => 1,
5141 AC_CONFIG_HEADERS => 1,
5142 AC_CONFIG_LIBOBJ_DIR => 1,
5143 AC_CONFIG_LINKS => 1,
5147 AC_REQUIRE_AUX_FILE => 1,
5148 AC_SUBST_TRACE => 1,
5149 AM_AUTOMAKE_VERSION => 1,
5150 AM_CONDITIONAL => 2,
5151 _AM_EXTRA_RECURSIVE_TARGETS => 1,
5152 AM_GNU_GETTEXT => 0,
5153 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5154 AM_INIT_AUTOMAKE => 0,
5155 AM_MAINTAINER_MODE => 0,
5157 AM_PROG_CC_C_O => 0,
5158 _AM_SUBST_NOTMAKE => 1,
5161 _AM_COND_ENDIF => 1,
5162 LT_SUPPORTED_TAG => 1,
5163 _LT_AC_TAGCONFIG => 0,
5169 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5171 # Use a separator unlikely to be used, not ':', the default, which
5172 # has a precise meaning for AC_CONFIG_FILES and so on.
5173 $traces .= join (' ',
5174 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5177 my $tracefh = new Automake::XFile ("$traces $filename |");
5178 verb "reading $traces";
5183 while ($_ = $tracefh->getline)
5186 my ($here, $depth, @args) = split (/::/);
5187 $where = new Automake::Location $here;
5188 my $macro = $args[0];
5190 prog_error ("unrequested trace '$macro'")
5191 unless exists $traced{$macro};
5193 # Skip and diagnose malformed calls.
5194 if ($#args < $traced{$macro})
5196 msg ('syntax', $where, "not enough arguments for $macro");
5200 # Alphabetical ordering please.
5201 if ($macro eq 'AC_CANONICAL_BUILD')
5203 if ($seen_canonical <= AC_CANONICAL_BUILD)
5205 $seen_canonical = AC_CANONICAL_BUILD;
5206 $canonical_location = $where;
5209 elsif ($macro eq 'AC_CANONICAL_HOST')
5211 if ($seen_canonical <= AC_CANONICAL_HOST)
5213 $seen_canonical = AC_CANONICAL_HOST;
5214 $canonical_location = $where;
5217 elsif ($macro eq 'AC_CANONICAL_TARGET')
5219 $seen_canonical = AC_CANONICAL_TARGET;
5220 $canonical_location = $where;
5222 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5224 if ($seen_init_automake)
5226 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5227 . "AM_INIT_AUTOMAKE ...", partial => 1);
5228 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5230 $config_aux_dir = $args[1];
5231 $config_aux_dir_set_in_configure_ac = 1;
5232 check_directory ($config_aux_dir, $where);
5234 elsif ($macro eq 'AC_CONFIG_FILES')
5236 # Look at potential Makefile.am's.
5237 scan_autoconf_config_files ($where, $args[1]);
5239 elsif ($macro eq 'AC_CONFIG_HEADERS')
5241 foreach my $spec (split (' ', $args[1]))
5243 my ($dest, @src) = split (':', $spec);
5244 $ac_config_files_location{$dest} = $where;
5245 push @config_headers, $spec;
5248 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5250 $config_libobj_dir = $args[1];
5251 check_directory ($config_libobj_dir, $where);
5253 elsif ($macro eq 'AC_CONFIG_LINKS')
5255 foreach my $spec (split (' ', $args[1]))
5257 my ($dest, $src) = split (':', $spec);
5258 $ac_config_files_location{$dest} = $where;
5259 push @config_links, $spec;
5262 elsif ($macro eq 'AC_FC_SRCEXT')
5264 my $suffix = $args[1];
5265 # These flags are used as %SOURCEFLAG% in depend2.am,
5266 # where the trailing space is important.
5267 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5268 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5270 elsif ($macro eq 'AC_INIT')
5272 if (defined $args[2])
5274 $package_version = $args[2];
5275 $package_version_location = $where;
5278 elsif ($macro eq 'AC_LIBSOURCE')
5280 $libsources{$args[1]} = $here;
5282 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5284 # Only remember the first time a file is required.
5285 $required_aux_file{$args[1]} = $where
5286 unless exists $required_aux_file{$args[1]};
5288 elsif ($macro eq 'AC_SUBST_TRACE')
5290 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5291 # AC_SUBST(5), then too bad.
5292 $configure_vars{$args[1]} = $where
5293 if $args[1] =~ /^\w+$/;
5295 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5298 "version mismatch. This is Automake $VERSION,\n" .
5299 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5300 "comes from Automake $args[1]. You should recreate\n" .
5301 "aclocal.m4 with aclocal and run automake again.\n",
5302 # $? = 63 is used to indicate version mismatch to missing.
5304 if $VERSION ne $args[1];
5306 $seen_automake_version = 1;
5308 elsif ($macro eq 'AM_CONDITIONAL')
5310 $configure_cond{$args[1]} = $where;
5312 elsif ($macro eq '_AM_EXTRA_RECURSIVE_TARGETS')
5314 push @extra_recursive_targets, split (' ', $args[1]);
5316 elsif ($macro eq 'AM_GNU_GETTEXT')
5318 $seen_gettext = $where;
5319 $ac_gettext_location = $where;
5320 $seen_gettext_external = grep ($_ eq 'external', @args);
5322 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5324 $seen_gettext_intl = $where;
5326 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5328 $seen_init_automake = $where;
5329 if (defined $args[2])
5331 msg 'obsolete', $where, <<'EOF';
5332 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5333 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_INIT_AUTOMAKE-invocation
5335 $package_version = $args[2];
5336 $package_version_location = $where;
5338 elsif (defined $args[1])
5340 my @opts = split (' ', $args[1]);
5341 @opts = map { { option => $_, where => $where } } @opts;
5342 exit $exit_code if process_global_option_list (@opts);
5345 elsif ($macro eq 'AM_MAINTAINER_MODE')
5347 $seen_maint_mode = $where;
5349 elsif ($macro eq 'AM_PROG_AR')
5353 elsif ($macro eq 'AM_PROG_CC_C_O')
5355 $seen_cc_c_o = $where;
5357 elsif ($macro eq '_AM_COND_IF')
5359 cond_stack_if ('', $args[1], $where);
5360 error ($where, "missing m4 quoting, macro depth $depth")
5363 elsif ($macro eq '_AM_COND_ELSE')
5365 cond_stack_else ('!', $args[1], $where);
5366 error ($where, "missing m4 quoting, macro depth $depth")
5369 elsif ($macro eq '_AM_COND_ENDIF')
5371 cond_stack_endif (undef, undef, $where);
5372 error ($where, "missing m4 quoting, macro depth $depth")
5375 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5377 $ignored_configure_vars{$args[1]} = $where;
5379 elsif ($macro eq 'm4_include'
5380 || $macro eq 'm4_sinclude'
5381 || $macro eq 'sinclude')
5383 # Skip missing 'sinclude'd files.
5384 next if $macro ne 'm4_include' && ! -f $args[1];
5386 # Some modified versions of Autoconf don't use
5387 # frozen files. Consequently it's possible that we see all
5388 # m4_include's performed during Autoconf's startup.
5389 # Obviously we don't want to distribute Autoconf's files
5390 # so we skip absolute filenames here.
5391 push @configure_deps, '$(top_srcdir)/' . $args[1]
5392 unless $here =~ m,^(?:\w:)?[\\/],;
5393 # Keep track of the greatest timestamp.
5396 my $mtime = mtime $args[1];
5397 $configure_deps_greatest_timestamp = $mtime
5398 if $mtime > $configure_deps_greatest_timestamp;
5401 elsif ($macro eq 'LT_SUPPORTED_TAG')
5403 $libtool_tags{$args[1]} = 1;
5404 $libtool_new_api = 1;
5406 elsif ($macro eq '_LT_AC_TAGCONFIG')
5408 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5409 # We use it to detect whether tags are supported. Our
5410 # preferred interface is LT_SUPPORTED_TAG, but it was
5411 # introduced in Libtool 1.6.
5412 if (0 == keys %libtool_tags)
5414 # Hardcode the tags supported by Libtool 1.5.
5415 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5420 error ($where, "condition stack not properly closed")
5427 # &scan_autoconf_files ()
5428 # -----------------------
5429 # Check whether we use 'configure.ac' or 'configure.in'.
5430 # Scan it (and possibly 'aclocal.m4') for interesting things.
5431 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5432 sub scan_autoconf_files ()
5434 # Reinitialize libsources here. This isn't really necessary,
5435 # since we currently assume there is only one configure.ac. But
5436 # that won't always be the case.
5439 # Keep track of the youngest configure dependency.
5440 $configure_deps_greatest_timestamp = mtime $configure_ac;
5441 if (-e 'aclocal.m4')
5443 my $mtime = mtime 'aclocal.m4';
5444 $configure_deps_greatest_timestamp = $mtime
5445 if $mtime > $configure_deps_greatest_timestamp;
5448 scan_autoconf_traces ($configure_ac);
5450 @configure_input_files = sort keys %make_list;
5451 # Set input and output files if not specified by user.
5454 @input_files = @configure_input_files;
5455 %output_files = %make_list;
5459 if (! $seen_init_automake)
5461 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5462 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5463 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5464 . "and that aclocal.m4 was recently regenerated "
5465 . "(using aclocal)");
5469 if (! $seen_automake_version)
5471 if (-f 'aclocal.m4')
5473 error ($seen_init_automake,
5474 "your implementation of AM_INIT_AUTOMAKE comes from " .
5475 "an\nold Automake version. You should recreate " .
5476 "aclocal.m4\nwith aclocal and run automake again",
5477 # $? = 63 is used to indicate version mismatch to missing.
5482 error ($seen_init_automake,
5483 "no proper implementation of AM_INIT_AUTOMAKE was " .
5484 "found,\nprobably because aclocal.m4 is missing.\n" .
5485 "You should run aclocal to create this file, then\n" .
5486 "run automake again");
5493 # Look for some files we need. Always check for these. This
5494 # check must be done for every run, even those where we are only
5495 # looking at a subdir Makefile. We must set relative_dir for
5496 # push_required_file to work.
5497 # Sort the files for stable verbose output.
5498 $relative_dir = '.';
5499 foreach my $file (sort keys %required_aux_file)
5501 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5503 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5504 if -f $config_aux_dir . '/install.sh';
5506 # Preserve dist_common for later.
5507 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5511 ################################################################
5513 # Do any extra checking for GNU standards.
5514 sub check_gnu_standards
5516 if ($relative_dir eq '.')
5518 # In top level (or only) directory.
5519 require_file ("$am_file.am", GNU,
5520 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5522 # Accept one of these three licenses; default to COPYING.
5523 # Make sure we do not overwrite an existing license.
5525 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5533 require_file ("$am_file.am", GNU, 'COPYING')
5537 for my $opt ('no-installman', 'no-installinfo')
5539 msg ('error-gnu', option $opt,
5540 "option '$opt' disallowed by GNU standards")
5545 # Do any extra checking for GNITS standards.
5546 sub check_gnits_standards
5548 if ($relative_dir eq '.')
5550 # In top level (or only) directory.
5551 require_file ("$am_file.am", GNITS, 'THANKS');
5555 ################################################################
5557 # Functions to handle files of each language.
5559 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5560 # simple formula: Return value is LANG_SUBDIR if the resulting object
5561 # file should be in a subdir if the source file is, LANG_PROCESS if
5562 # file is to be dealt with, LANG_IGNORE otherwise.
5564 # Much of the actual processing is handled in
5565 # handle_single_transform. These functions exist so that
5566 # auxiliary information can be recorded for a later cleanup pass.
5567 # Note that the calls to these functions are computed, so don't bother
5568 # searching for their precise names in the source.
5570 # This is just a convenience function that can be used to determine
5571 # when a subdir object should be used.
5574 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5577 # Rewrite a single C source file.
5580 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5582 my $r = LANG_PROCESS;
5583 if (option 'subdir-objects')
5586 if ($directory && $directory ne '.')
5588 $base = $directory . '/' . $base;
5590 # libtool is always able to put the object at the proper place,
5591 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5592 msg_var ('portability', $var,
5593 "compiling '$base.c' in subdir requires "
5594 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5595 uniq_scope => US_GLOBAL,
5596 uniq_part => 'AM_PROG_CC_C_O subdir')
5597 unless $seen_cc_c_o || $obj eq '.lo';
5602 && $have_per_exec_flags
5603 && ! option 'subdir-objects'
5606 msg_var ('portability',
5607 $var, "compiling '$base.c' with per-target flags requires "
5608 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5609 uniq_scope => US_GLOBAL,
5610 uniq_part => 'AM_PROG_CC_C_O per-target')
5616 # Rewrite a single C++ source file.
5617 sub lang_cxx_rewrite
5619 return &lang_sub_obj;
5622 # Rewrite a single header file.
5623 sub lang_header_rewrite
5625 # Header files are simply ignored.
5629 # Rewrite a single Vala source file.
5630 sub lang_vala_rewrite
5632 my ($directory, $base, $ext) = @_;
5634 (my $newext = $ext) =~ s/vala$/c/;
5635 return (LANG_SUBDIR, $newext);
5638 # Rewrite a single yacc file.
5639 sub lang_yacc_rewrite
5641 my ($directory, $base, $ext) = @_;
5643 my $r = &lang_sub_obj;
5644 (my $newext = $ext) =~ tr/y/c/;
5645 return ($r, $newext);
5648 # Rewrite a single yacc++ file.
5649 sub lang_yaccxx_rewrite
5651 my ($directory, $base, $ext) = @_;
5653 my $r = &lang_sub_obj;
5654 (my $newext = $ext) =~ tr/y/c/;
5655 return ($r, $newext);
5658 # Rewrite a single lex file.
5659 sub lang_lex_rewrite
5661 my ($directory, $base, $ext) = @_;
5663 my $r = &lang_sub_obj;
5664 (my $newext = $ext) =~ tr/l/c/;
5665 return ($r, $newext);
5668 # Rewrite a single lex++ file.
5669 sub lang_lexxx_rewrite
5671 my ($directory, $base, $ext) = @_;
5673 my $r = &lang_sub_obj;
5674 (my $newext = $ext) =~ tr/l/c/;
5675 return ($r, $newext);
5678 # Rewrite a single assembly file.
5679 sub lang_asm_rewrite
5681 return &lang_sub_obj;
5684 # Rewrite a single preprocessed assembly file.
5685 sub lang_cppasm_rewrite
5687 return &lang_sub_obj;
5690 # Rewrite a single Fortran 77 file.
5691 sub lang_f77_rewrite
5693 return &lang_sub_obj;
5696 # Rewrite a single Fortran file.
5699 return &lang_sub_obj;
5702 # Rewrite a single preprocessed Fortran file.
5703 sub lang_ppfc_rewrite
5705 return &lang_sub_obj;
5708 # Rewrite a single preprocessed Fortran 77 file.
5709 sub lang_ppf77_rewrite
5711 return &lang_sub_obj;
5714 # Rewrite a single ratfor file.
5715 sub lang_ratfor_rewrite
5717 return &lang_sub_obj;
5720 # Rewrite a single Objective C file.
5721 sub lang_objc_rewrite
5723 return &lang_sub_obj;
5726 # Rewrite a single Objective C++ file.
5727 sub lang_objcxx_rewrite
5729 return &lang_sub_obj;
5732 # Rewrite a single Unified Parallel C file.
5733 sub lang_upc_rewrite
5735 return &lang_sub_obj;
5738 # Rewrite a single Java file.
5739 sub lang_java_rewrite
5744 # The lang_X_finish functions are called after all source file
5745 # processing is done. Each should handle defining rules for the
5746 # language, etc. A finish function is only called if a source file of
5747 # the appropriate type has been seen.
5749 sub lang_vala_finish_target ($$)
5751 my ($self, $name) = @_;
5753 my $derived = canonicalize ($name);
5754 my $var = var "${derived}_SOURCES";
5757 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5759 # For automake bug#11229.
5760 return unless @vala_sources;
5762 foreach my $vala_file (@vala_sources)
5764 my $c_file = $vala_file;
5765 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5767 $c_file = "\$(srcdir)/$c_file";
5768 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5769 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5770 . "\t\@if test -f \$@; then :; else \\\n"
5771 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5773 $clean_files{$c_file} = MAINTAINER_CLEAN;
5777 # Add rebuild rules for generated header and vapi files
5778 my $flags = var ($derived . '_VALAFLAGS');
5782 foreach my $flag ($flags->value_as_list_recursive)
5784 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5785 '--vapi', '--internal-vapi', '--gir')))
5787 my $headerfile = "\$(srcdir)/$flag";
5788 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5789 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5790 . "\t\@if test -f \$@; then :; else \\\n"
5791 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5794 # valac is not used when building from dist tarballs
5795 # distribute the generated files
5796 push_dist_common ($headerfile);
5797 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5803 my $compile = $self->compile;
5805 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5806 # rule into '${derived}_VALAFLAGS' if it exists.
5807 my $val = "${derived}_VALAFLAGS";
5808 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5811 # VALAFLAGS is a user variable (per GNU Standards),
5812 # it should not be overridden in the Makefile...
5813 check_user_variables 'VALAFLAGS';
5815 my $dirname = dirname ($name);
5817 # Only generate C code, do not run C compiler
5820 my $verbose = verbose_flag ('VALAC');
5821 my $silent = silent_flag ();
5822 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5825 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5826 # Since the C files generated from the vala sources depend on the
5827 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5828 # those of the C files generated by the valac invocation below (this is
5829 # especially important on systems with sub-second timestamp resolution).
5830 # Thus we need to create the stamp file *before* invoking valac, and to
5831 # move it to its final location only after valac has been invoked.
5832 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5833 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5834 "\t${silent}mv -f \$\@-t \$\@\n";
5836 push_dist_common ($stampfile);
5838 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5841 # Add output rules to invoke valac and create stamp file as a witness
5842 # to handle multiple outputs. This function is called after all source
5843 # file processing is done.
5844 sub lang_vala_finish
5848 foreach my $prog (keys %known_programs)
5850 lang_vala_finish_target ($self, $prog);
5853 while (my ($name) = each %known_libraries)
5855 lang_vala_finish_target ($self, $name);
5859 # The built .c files should be cleaned only on maintainer-clean
5860 # as the .c files are distributed. This function is called for each
5861 # .vala source file.
5862 sub lang_vala_target_hook
5864 my ($self, $aggregate, $output, $input, %transform) = @_;
5866 $clean_files{$output} = MAINTAINER_CLEAN;
5869 # This is a yacc helper which is called whenever we have decided to
5870 # compile a yacc file.
5871 sub lang_yacc_target_hook
5873 my ($self, $aggregate, $output, $input, %transform) = @_;
5875 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5876 # have to to generate special code.
5877 my $yflags_contains_minus_d = 0;
5879 foreach my $pfx ("", "${aggregate}_")
5881 my $yflagsvar = var ("${pfx}YFLAGS");
5882 next unless $yflagsvar;
5883 # We cannot work reliably with conditionally-defined YFLAGS.
5884 if ($yflagsvar->has_conditional_contents)
5886 msg_var ('unsupported', $yflagsvar,
5887 "'${pfx}YFLAGS' cannot have conditional contents");
5891 $yflags_contains_minus_d = 1
5892 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5896 if ($yflags_contains_minus_d)
5898 # Found a '-d' that applies to the compilation of this file.
5899 # Add a dependency for the generated header file, and arrange
5900 # for that file to be included in the distribution.
5902 # The extension of the output file (e.g., '.c' or '.cxx').
5903 # We'll need it to compute the name of the generated header file.
5904 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5906 # We know that a yacc input should be turned into either a C or
5907 # C++ output file. We depend on this fact (here and in yacc.am),
5908 # so check that it really holds.
5909 my $lang = $languages{$extension_map{$output_ext}};
5910 prog_error "invalid output name '$output' for yacc file '$input'"
5911 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5913 (my $header_ext = $output_ext) =~ s/c/h/g;
5914 # Quote $output_ext in the regexp, so that dots in it are taken
5915 # as literal dots, not as metacharacters.
5916 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5918 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5919 RULE_AUTOMAKE, TRUE,
5922 my $condstr = $cond->subst_string;
5924 "$condstr${header}: $output\n"
5925 # Recover from removal of $header
5926 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5927 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5929 # Distribute the generated file, unless its .y source was
5930 # listed in a nodist_ variable. (&handle_source_transform
5931 # will set DIST_SOURCE.)
5932 &push_dist_common ($header)
5933 if $transform{'DIST_SOURCE'};
5935 # The GNU rules say that yacc/lex output files should be removed
5936 # by maintainer-clean. However, if the files are not distributed,
5937 # then we want to remove them with "make clean"; otherwise,
5938 # "make distcheck" will fail.
5939 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5941 # See the comment above for $HEADER.
5942 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5945 # This is a lex helper which is called whenever we have decided to
5946 # compile a lex file.
5947 sub lang_lex_target_hook
5949 my ($self, $aggregate, $output, $input, %transform) = @_;
5950 # The GNU rules say that yacc/lex output files should be removed
5951 # by maintainer-clean. However, if the files are not distributed,
5952 # then we want to remove them with "make clean"; otherwise,
5953 # "make distcheck" will fail.
5954 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5957 # This is a helper for both lex and yacc.
5958 sub yacc_lex_finish_helper
5960 return if defined $language_scratch{'lex-yacc-done'};
5961 $language_scratch{'lex-yacc-done'} = 1;
5963 # FIXME: for now, no line number.
5964 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5965 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5968 sub lang_yacc_finish
5970 return if defined $language_scratch{'yacc-done'};
5971 $language_scratch{'yacc-done'} = 1;
5973 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5975 yacc_lex_finish_helper;
5981 return if defined $language_scratch{'lex-done'};
5982 $language_scratch{'lex-done'} = 1;
5984 yacc_lex_finish_helper;
5988 # Given a hash table of linker names, pick the name that has the most
5989 # precedence. This is lame, but something has to have global
5990 # knowledge in order to eliminate the conflict. Add more linkers as
5996 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5998 return $l if defined $linkers{$l};
6003 # Called to indicate that an extension was used.
6007 $extension_seen{$ext} = 1;
6010 # register_language (%ATTRIBUTE)
6011 # ------------------------------
6012 # Register a single language.
6013 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6014 sub register_language (%)
6019 $option{'autodep'} = 'no'
6020 unless defined $option{'autodep'};
6021 $option{'linker'} = ''
6022 unless defined $option{'linker'};
6023 $option{'flags'} = []
6024 unless defined $option{'flags'};
6025 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6026 unless defined $option{'output_extensions'};
6027 $option{'nodist_specific'} = 0
6028 unless defined $option{'nodist_specific'};
6030 my $lang = new Language (%option);
6033 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6034 $languages{$lang->name} = $lang;
6035 my $link = $lang->linker;
6038 if (exists $link_languages{$link})
6040 prog_error ("'$link' has different definitions in "
6041 . $lang->name . " and " . $link_languages{$link}->name)
6042 if $lang->link ne $link_languages{$link}->link;
6046 $link_languages{$link} = $lang;
6050 # Update the pattern of known extensions.
6051 accept_extensions (@{$lang->extensions});
6053 # Upate the $suffix_rule map.
6054 foreach my $suffix (@{$lang->extensions})
6056 foreach my $dest (&{$lang->output_extensions} ($suffix))
6058 register_suffix_rule (INTERNAL, $suffix, $dest);
6063 # derive_suffix ($EXT, $OBJ)
6064 # --------------------------
6065 # This function is used to find a path from a user-specified suffix $EXT
6066 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6067 sub derive_suffix ($$)
6069 my ($source_ext, $obj) = @_;
6071 while (! $extension_map{$source_ext}
6072 && $source_ext ne $obj
6073 && exists $suffix_rules->{$source_ext}
6074 && exists $suffix_rules->{$source_ext}{$obj})
6076 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6083 ################################################################
6085 # Pretty-print something and append to output_rules.
6086 sub pretty_print_rule
6088 $output_rules .= &makefile_wrap (@_);
6092 ################################################################
6095 ## -------------------------------- ##
6096 ## Handling the conditional stack. ##
6097 ## -------------------------------- ##
6101 # make_conditional_string ($NEGATE, $COND)
6102 # ----------------------------------------
6103 sub make_conditional_string ($$)
6105 my ($negate, $cond) = @_;
6106 $cond = "${cond}_TRUE"
6107 unless $cond =~ /^TRUE|FALSE$/;
6108 $cond = Automake::Condition::conditional_negate ($cond)
6114 my %_am_macro_for_cond =
6116 AMDEP => "one of the compiler tests\n"
6117 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6118 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6119 am__fastdepCC => 'AC_PROG_CC',
6120 am__fastdepCCAS => 'AM_PROG_AS',
6121 am__fastdepCXX => 'AC_PROG_CXX',
6122 am__fastdepGCJ => 'AM_PROG_GCJ',
6123 am__fastdepOBJC => 'AC_PROG_OBJC',
6124 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6125 am__fastdepUPC => 'AM_PROG_UPC'
6129 # cond_stack_if ($NEGATE, $COND, $WHERE)
6130 # --------------------------------------
6131 sub cond_stack_if ($$$)
6133 my ($negate, $cond, $where) = @_;
6135 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6137 my $text = "$cond does not appear in AM_CONDITIONAL";
6138 my $scope = US_LOCAL;
6139 if (exists $_am_macro_for_cond{$cond})
6141 my $mac = $_am_macro_for_cond{$cond};
6142 $text .= "\n The usual way to define '$cond' is to add ";
6143 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6144 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6145 # These warnings appear in Automake files (depend2.am),
6146 # so there is no need to display them more than once:
6149 error $where, $text, uniq_scope => $scope;
6152 push (@cond_stack, make_conditional_string ($negate, $cond));
6154 return new Automake::Condition (@cond_stack);
6159 # cond_stack_else ($NEGATE, $COND, $WHERE)
6160 # ----------------------------------------
6161 sub cond_stack_else ($$$)
6163 my ($negate, $cond, $where) = @_;
6167 error $where, "else without if";
6171 $cond_stack[$#cond_stack] =
6172 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6174 # If $COND is given, check against it.
6177 $cond = make_conditional_string ($negate, $cond);
6179 error ($where, "else reminder ($negate$cond) incompatible with "
6180 . "current conditional: $cond_stack[$#cond_stack]")
6181 if $cond_stack[$#cond_stack] ne $cond;
6184 return new Automake::Condition (@cond_stack);
6189 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6190 # -----------------------------------------
6191 sub cond_stack_endif ($$$)
6193 my ($negate, $cond, $where) = @_;
6198 error $where, "endif without if";
6202 # If $COND is given, check against it.
6205 $cond = make_conditional_string ($negate, $cond);
6207 error ($where, "endif reminder ($negate$cond) incompatible with "
6208 . "current conditional: $cond_stack[$#cond_stack]")
6209 if $cond_stack[$#cond_stack] ne $cond;
6214 return new Automake::Condition (@cond_stack);
6221 ## ------------------------ ##
6222 ## Handling the variables. ##
6223 ## ------------------------ ##
6226 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6227 # -----------------------------------------------------
6228 # Like define_variable, but the value is a list, and the variable may
6229 # be defined conditionally. The second argument is the condition
6230 # under which the value should be defined; this should be the empty
6231 # string to define the variable unconditionally. The third argument
6232 # is a list holding the values to use for the variable. The value is
6233 # pretty printed in the output file.
6234 sub define_pretty_variable ($$$@)
6236 my ($var, $cond, $where, @value) = @_;
6238 if (! vardef ($var, $cond))
6240 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6241 '', $where, VAR_PRETTY);
6242 rvar ($var)->rdef ($cond)->set_seen;
6247 # define_variable ($VAR, $VALUE, $WHERE)
6248 # --------------------------------------
6249 # Define a new Automake Makefile variable VAR to VALUE, but only if
6250 # not already defined.
6251 sub define_variable ($$$)
6253 my ($var, $value, $where) = @_;
6254 define_pretty_variable ($var, TRUE, $where, $value);
6258 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6259 # ------------------------------------------------------------
6260 # Define the $VAR which content is the list of file names composed of
6261 # a @BASENAME and the $EXTENSION.
6262 sub define_files_variable ($\@$$)
6264 my ($var, $basename, $extension, $where) = @_;
6265 define_variable ($var,
6266 join (' ', map { "$_.$extension" } @$basename),
6271 # Like define_variable, but define a variable to be the configure
6272 # substitution by the same name.
6273 sub define_configure_variable ($)
6276 # Some variables we do not want to output. For instance it
6277 # would be a bad idea to output `U = @U@` when `@U@` can be
6278 # substituted as `\`.
6279 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6280 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6281 '', $configure_vars{$var}, $pretty);
6285 # define_compiler_variable ($LANG)
6286 # --------------------------------
6287 # Define a compiler variable. We also handle defining the 'LT'
6288 # version of the command when using libtool.
6289 sub define_compiler_variable ($)
6293 my ($var, $value) = ($lang->compiler, $lang->compile);
6294 my $libtool_tag = '';
6295 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6296 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6297 &define_variable ($var, $value, INTERNAL);
6298 if (var ('LIBTOOL'))
6300 my $verbose = define_verbose_libtool ();
6301 &define_variable ("LT$var",
6302 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6303 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6306 define_verbose_tagvar ($lang->ccer || 'GEN');
6310 # define_linker_variable ($LANG)
6311 # ------------------------------
6312 # Define linker variables.
6313 sub define_linker_variable ($)
6317 my $libtool_tag = '';
6318 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6319 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6321 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6322 # CCLINK = $(CCLD) blah blah...
6324 if (var ('LIBTOOL'))
6326 my $verbose = define_verbose_libtool ();
6327 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6328 . "\$(LIBTOOLFLAGS) --mode=link ";
6330 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6331 &define_variable ($lang->compiler, $lang);
6332 &define_verbose_tagvar ($lang->lder || 'GEN');
6335 sub define_per_target_linker_variable ($$)
6337 my ($linker, $target) = @_;
6339 # If the user wrote a custom link command, we don't define ours.
6340 return "${target}_LINK"
6341 if set_seen "${target}_LINK";
6343 my $xlink = $linker ? $linker : 'LINK';
6345 my $lang = $link_languages{$xlink};
6346 prog_error "Unknown language for linker variable '$xlink'"
6349 my $link_command = $lang->link;
6352 my $libtool_tag = '';
6353 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6354 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6356 my $verbose = define_verbose_libtool ();
6358 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6359 . "--mode=link " . $link_command;
6362 # Rewrite each occurrence of 'AM_$flag' in the link
6363 # command into '${derived}_$flag' if it exists.
6364 my $orig_command = $link_command;
6365 my @flags = (@{$lang->flags}, 'LDFLAGS');
6366 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6367 for my $flag (@flags)
6369 my $val = "${target}_$flag";
6370 $link_command =~ s/\(AM_$flag\)/\($val\)/
6374 # If the computed command is the same as the generic command, use
6375 # the command linker variable.
6376 return ($lang->linker, $lang->lder)
6377 if $link_command eq $orig_command;
6379 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6380 return ("${target}_LINK", $lang->lder);
6383 ################################################################
6385 # &check_trailing_slash ($WHERE, $LINE)
6386 # -------------------------------------
6387 # Return 1 iff $LINE ends with a slash.
6388 # Might modify $LINE.
6389 sub check_trailing_slash ($\$)
6391 my ($where, $line) = @_;
6393 # Ignore '##' lines.
6394 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6396 # Catch and fix a common error.
6397 msg "syntax", $where, "whitespace following trailing backslash"
6398 if $$line =~ s/\\\s+\n$/\\\n/;
6400 return $$line =~ /\\$/;
6404 # &read_am_file ($AMFILE, $WHERE)
6405 # -------------------------------
6406 # Read Makefile.am and set up %contents. Simultaneously copy lines
6407 # from Makefile.am into $output_trailer, or define variables as
6408 # appropriate. NOTE we put rules in the trailer section. We want
6409 # user rules to come after our generated stuff.
6410 sub read_am_file ($$)
6412 my ($amfile, $where) = @_;
6414 my $am_file = new Automake::XFile ("< $amfile");
6415 verb "reading $amfile";
6417 # Keep track of the youngest output dependency.
6418 my $mtime = mtime $amfile;
6419 $output_deps_greatest_timestamp = $mtime
6420 if $mtime > $output_deps_greatest_timestamp;
6426 my $var_look = VAR_ASIS;
6428 use constant IN_VAR_DEF => 0;
6429 use constant IN_RULE_DEF => 1;
6430 use constant IN_COMMENT => 2;
6431 my $prev_state = IN_RULE_DEF;
6433 while ($_ = $am_file->getline)
6435 $where->set ("$amfile:$.");
6436 if (/$IGNORE_PATTERN/o)
6438 # Merely delete comments beginning with two hashes.
6440 elsif (/$WHITE_PATTERN/o)
6442 error $where, "blank line following trailing backslash"
6444 # Stick a single white line before the incoming macro or rule.
6447 # Flush all comments seen so far.
6450 $output_vars .= $comment;
6454 elsif (/$COMMENT_PATTERN/o)
6456 # Stick comments before the incoming macro or rule. Make
6457 # sure a blank line precedes the first block of comments.
6458 $spacing = "\n" unless $blank;
6460 $comment .= $spacing . $_;
6462 $prev_state = IN_COMMENT;
6468 $saw_bk = check_trailing_slash ($where, $_);
6471 # We save the conditional stack on entry, and then check to make
6472 # sure it is the same on exit. This lets us conditionally include
6474 my @saved_cond_stack = @cond_stack;
6475 my $cond = new Automake::Condition (@cond_stack);
6477 my $last_var_name = '';
6478 my $last_var_type = '';
6479 my $last_var_value = '';
6481 # FIXME: shouldn't use $_ in this loop; it is too big.
6484 $where->set ("$amfile:$.");
6486 # Make sure the line is \n-terminated.
6490 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6491 # used by users. @MAINT@ is an anachronism now.
6492 $_ =~ s/\@MAINT\@//g
6493 unless $seen_maint_mode;
6495 my $new_saw_bk = check_trailing_slash ($where, $_);
6497 if (/$IGNORE_PATTERN/o)
6499 # Merely delete comments beginning with two hashes.
6501 # Keep any backslash from the previous line.
6502 $new_saw_bk = $saw_bk;
6504 elsif (/$WHITE_PATTERN/o)
6506 # Stick a single white line before the incoming macro or rule.
6508 error $where, "blank line following trailing backslash"
6511 elsif (/$COMMENT_PATTERN/o)
6513 error $where, "comment following trailing backslash"
6514 if $saw_bk && $prev_state != IN_COMMENT;
6516 # Stick comments before the incoming macro or rule.
6517 $comment .= $spacing . $_;
6519 $prev_state = IN_COMMENT;
6523 if ($prev_state == IN_RULE_DEF)
6525 my $cond = new Automake::Condition @cond_stack;
6526 $output_trailer .= $cond->subst_string;
6527 $output_trailer .= $_;
6529 elsif ($prev_state == IN_COMMENT)
6531 # If the line doesn't start with a '#', add it.
6532 # We do this because a continued comment like
6536 # is not portable. BSD make doesn't honor
6537 # escaped newlines in comments.
6539 $comment .= $spacing . $_;
6541 else # $prev_state == IN_VAR_DEF
6543 $last_var_value .= ' '
6544 unless $last_var_value =~ /\s$/;
6545 $last_var_value .= $_;
6549 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6550 $last_var_type, $cond,
6551 $last_var_value, $comment,
6552 $last_where, VAR_ASIS)
6554 $comment = $spacing = '';
6559 elsif (/$IF_PATTERN/o)
6561 $cond = cond_stack_if ($1, $2, $where);
6563 elsif (/$ELSE_PATTERN/o)
6565 $cond = cond_stack_else ($1, $2, $where);
6567 elsif (/$ENDIF_PATTERN/o)
6569 $cond = cond_stack_endif ($1, $2, $where);
6572 elsif (/$RULE_PATTERN/o)
6575 $prev_state = IN_RULE_DEF;
6577 # For now we have to output all definitions of user rules
6578 # and can't diagnose duplicates (see the comment in
6579 # Automake::Rule::define). So we go on and ignore the return value.
6580 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6582 check_variable_expansions ($_, $where);
6584 $output_trailer .= $comment . $spacing;
6585 my $cond = new Automake::Condition @cond_stack;
6586 $output_trailer .= $cond->subst_string;
6587 $output_trailer .= $_;
6588 $comment = $spacing = '';
6590 elsif (/$ASSIGNMENT_PATTERN/o)
6592 # Found a macro definition.
6593 $prev_state = IN_VAR_DEF;
6594 $last_var_name = $1;
6595 $last_var_type = $2;
6596 $last_var_value = $3;
6597 $last_where = $where->clone;
6598 if ($3 ne '' && substr ($3, -1) eq "\\")
6600 # We preserve the '\' because otherwise the long lines
6601 # that are generated will be truncated by broken
6603 $last_var_value = $3 . "\n";
6605 # Normally we try to output variable definitions in the
6606 # same format they were input. However, POSIX compliant
6607 # systems are not required to support lines longer than
6608 # 2048 bytes (most notably, some sed implementation are
6609 # limited to 4000 bytes, and sed is used by config.status
6610 # to rewrite Makefile.in into Makefile). Moreover nobody
6611 # would really write such long lines by hand since it is
6612 # hardly maintainable. So if a line is longer that 1000
6613 # bytes (an arbitrary limit), assume it has been
6614 # automatically generated by some tools, and flatten the
6615 # variable definition. Otherwise, keep the variable as it
6617 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6621 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6622 $last_var_type, $cond,
6623 $last_var_value, $comment,
6624 $last_where, $var_look)
6626 $comment = $spacing = '';
6627 $var_look = VAR_ASIS;
6630 elsif (/$INCLUDE_PATTERN/o)
6634 if ($path =~ s/^\$\(top_srcdir\)\///)
6636 push (@include_stack, "\$\(top_srcdir\)/$path");
6637 # Distribute any included file.
6639 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6640 # otherwise OSF make will implicitly copy the included
6641 # file in the build tree during "make distdir" to satisfy
6643 # (subdircond2.test and subdircond3.test will fail.)
6644 push_dist_common ("\$\(top_srcdir\)/$path");
6648 $path =~ s/\$\(srcdir\)\///;
6649 push (@include_stack, "\$\(srcdir\)/$path");
6650 # Always use the $(srcdir) prefix in DIST_COMMON,
6651 # otherwise OSF make will implicitly copy the included
6652 # file in the build tree during "make distdir" to satisfy
6654 # (subdircond2.test and subdircond3.test will fail.)
6655 push_dist_common ("\$\(srcdir\)/$path");
6656 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6658 $where->push_context ("'$path' included from here");
6659 &read_am_file ($path, $where);
6660 $where->pop_context;
6664 # This isn't an error; it is probably a continued rule.
6665 # In fact, this is what we assume.
6666 $prev_state = IN_RULE_DEF;
6667 check_variable_expansions ($_, $where);
6668 $output_trailer .= $comment . $spacing;
6669 my $cond = new Automake::Condition @cond_stack;
6670 $output_trailer .= $cond->subst_string;
6671 $output_trailer .= $_;
6672 $comment = $spacing = '';
6673 error $where, "'#' comment at start of rule is unportable"
6674 if $_ =~ /^\t\s*\#/;
6677 $saw_bk = $new_saw_bk;
6678 $_ = $am_file->getline;
6681 $output_trailer .= $comment;
6683 error ($where, "trailing backslash on last line")
6686 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6687 : "too many conditionals closed in include file"))
6688 if "@saved_cond_stack" ne "@cond_stack";
6692 # define_standard_variables ()
6693 # ----------------------------
6694 # A helper for read_main_am_file which initializes configure variables
6695 # and variables from header-vars.am.
6696 sub define_standard_variables
6698 my $saved_output_vars = $output_vars;
6699 my ($comments, undef, $rules) =
6700 file_contents_internal (1, "$libdir/am/header-vars.am",
6701 new Automake::Location);
6703 foreach my $var (sort keys %configure_vars)
6705 &define_configure_variable ($var);
6708 $output_vars .= $comments . $rules;
6711 # Read main am file.
6712 sub read_main_am_file
6716 # This supports the strange variable tricks we are about to play.
6717 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6718 if (scalar (variables) > 0);
6720 # Generate copyright header for generated Makefile.in.
6721 # We do discard the output of predefined variables, handled below.
6722 $output_vars = ("# $in_file_name generated by automake "
6723 . $VERSION . " from $am_file_name.\n");
6724 $output_vars .= '# ' . subst ('configure_input') . "\n";
6725 $output_vars .= $gen_copyright;
6727 # We want to predefine as many variables as possible. This lets
6728 # the user set them with '+=' in Makefile.am.
6729 &define_standard_variables;
6731 # Read user file, which might override some of our values.
6732 &read_am_file ($amfile, new Automake::Location);
6737 ################################################################
6740 # &flatten ($STRING)
6741 # ------------------
6742 # Flatten the $STRING and return the result.
6756 # transform_token ($TOKEN, \%PAIRS, $KEY)
6757 # =======================================
6758 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6759 # (which should be ?KEY? or any of the special %% requests)..
6760 sub transform_token ($$$)
6762 my ($token, $transform, $key) = @_;
6763 my $res = $transform->{$key};
6764 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6769 # transform ($TOKEN, \%PAIRS)
6770 # ===========================
6771 # If ($TOKEN, $VAL) is in %PAIRS:
6772 # - replaces %KEY% with $VAL,
6773 # - enables/disables ?KEY? and ?!KEY?,
6774 # - replaces %?KEY% with TRUE or FALSE.
6777 my ($token, $transform) = @_;
6780 # Must be before the following pattern to exclude the case
6781 # when there is neither IFTRUE nor IFFALSE.
6782 if ($token =~ /^%([\w\-]+)%$/)
6784 return transform_token ($token, $transform, $1);
6787 elsif ($token =~ /^%\?([\w\-]+)%$/)
6789 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6792 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6794 my $neg = ($1 eq '!') ? 1 : 0;
6795 my $val = transform_token ($token, $transform, $2);
6796 return (!!$val == $neg) ? '##%' : '';
6800 prog_error "Unknown request format: $token";
6805 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6806 # -----------------------------------------
6807 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6808 # No extra parsing or post-processing is done (i.e., recognition of
6809 # rules declaration or of make variables definitions).
6810 sub preprocess_file ($%)
6812 my ($file, %transform) = @_;
6814 # Complete %transform with global options.
6815 # Note that %transform goes last, so it overrides global options.
6816 %transform = ( 'MAINTAINER-MODE'
6817 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6819 'XZ' => !! option 'dist-xz',
6820 'LZMA' => !! option 'dist-lzma',
6821 'LZIP' => !! option 'dist-lzip',
6822 'BZIP2' => !! option 'dist-bzip2',
6823 'COMPRESS' => !! option 'dist-tarZ',
6824 'GZIP' => ! option 'no-dist-gzip',
6825 'SHAR' => !! option 'dist-shar',
6826 'ZIP' => !! option 'dist-zip',
6828 'INSTALL-INFO' => ! option 'no-installinfo',
6829 'INSTALL-MAN' => ! option 'no-installman',
6830 'HAVE-MANS' => !! var ('MANS'),
6831 'CK-NEWS' => !! option 'check-news',
6833 'SUBDIRS' => !! var ('SUBDIRS'),
6834 'TOPDIR_P' => $relative_dir eq '.',
6836 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6837 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6838 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6840 'LIBTOOL' => !! var ('LIBTOOL'),
6844 if (! defined ($_ = $am_file_cache{$file}))
6846 verb "reading $file";
6847 # Swallow the whole file.
6848 my $fc_file = new Automake::XFile "< $file";
6849 my $saved_dollar_slash = $/;
6851 $_ = $fc_file->getline;
6852 $/ = $saved_dollar_slash;
6854 # Remove ##-comments.
6855 # Besides we don't need more than two consecutive new-lines.
6856 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6857 # Remember the contents of the just-read file.
6858 $am_file_cache{$file} = $_;
6861 # Substitute Automake template tokens.
6862 s/(?: % \?? [\w\-]+ %
6864 )/transform($&, \%transform)/gex;
6865 # transform() may have added some ##%-comments to strip.
6866 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6867 # ####### and do not remove the latter.)
6868 s/^[ \t]*(?:##%)+.*\n//gm;
6875 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6876 # ------------------------------------------
6877 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6879 sub make_paragraphs ($%)
6881 my ($file, %transform) = @_;
6882 $transform{FIRST} = !$transformed_files{$file};
6883 $transformed_files{$file} = 1;
6885 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6888 while (defined ($_ = shift @lines))
6891 # If we are a rule, eat as long as we start with a tab.
6892 if (/$RULE_PATTERN/smo)
6894 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6896 $paragraph .= "\n$_";
6898 unshift (@lines, $_);
6901 # If we are a comments, eat as much comments as you can.
6902 elsif (/$COMMENT_PATTERN/smo)
6904 while (defined ($_ = shift @lines)
6905 && $_ =~ /$COMMENT_PATTERN/smo)
6907 $paragraph .= "\n$_";
6909 unshift (@lines, $_);
6912 push @res, $paragraph;
6920 # ($COMMENT, $VARIABLES, $RULES)
6921 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6922 # -------------------------------------------------------------
6923 # Return contents of a file from $libdir/am, automatically skipping
6924 # macros or rules which are already known. $IS_AM iff the caller is
6925 # reading an Automake file (as opposed to the user's Makefile.am).
6926 sub file_contents_internal ($$$%)
6928 my ($is_am, $file, $where, %transform) = @_;
6930 $where->set ($file);
6932 my $result_vars = '';
6933 my $result_rules = '';
6937 # The following flags are used to track rules spanning across
6938 # multiple paragraphs.
6939 my $is_rule = 0; # 1 if we are processing a rule.
6940 my $discard_rule = 0; # 1 if the current rule should not be output.
6942 # We save the conditional stack on entry, and then check to make
6943 # sure it is the same on exit. This lets us conditionally include
6945 my @saved_cond_stack = @cond_stack;
6946 my $cond = new Automake::Condition (@cond_stack);
6948 foreach (make_paragraphs ($file, %transform))
6950 # FIXME: no line number available.
6951 $where->set ($file);
6954 error $where, "blank line following trailing backslash:\n$_"
6956 error $where, "comment following trailing backslash:\n$_"
6962 # Stick empty line before the incoming macro or rule.
6965 elsif (/$COMMENT_PATTERN/mso)
6968 # Stick comments before the incoming macro or rule.
6972 # Handle inclusion of other files.
6973 elsif (/$INCLUDE_PATTERN/o)
6977 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6978 $where->push_context ("'$file' included from here");
6980 my ($com, $vars, $rules)
6981 = file_contents_internal ($is_am, $file, $where, %transform);
6982 $where->pop_context;
6984 $result_vars .= $vars;
6985 $result_rules .= $rules;
6989 # Handling the conditionals.
6990 elsif (/$IF_PATTERN/o)
6992 $cond = cond_stack_if ($1, $2, $file);
6994 elsif (/$ELSE_PATTERN/o)
6996 $cond = cond_stack_else ($1, $2, $file);
6998 elsif (/$ENDIF_PATTERN/o)
7000 $cond = cond_stack_endif ($1, $2, $file);
7004 elsif (/$RULE_PATTERN/mso)
7008 # Separate relationship from optional actions: the first
7009 # `new-line tab" not preceded by backslash (continuation
7012 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7013 my ($relationship, $actions) = ($1, $2 || '');
7015 # Separate targets from dependencies: the first colon.
7016 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7017 my ($targets, $dependencies) = ($1, $2);
7018 # Remove the escaped new lines.
7019 # I don't know why, but I have to use a tmp $flat_deps.
7020 my $flat_deps = &flatten ($dependencies);
7021 my @deps = split (' ', $flat_deps);
7023 foreach (split (' ', $targets))
7025 # FIXME: 1. We are not robust to people defining several targets
7026 # at once, only some of them being in %dependencies. The
7027 # actions from the targets in %dependencies are usually generated
7028 # from the content of %actions, but if some targets in $targets
7029 # are not in %dependencies the ELSE branch will output
7030 # a rule for all $targets (i.e. the targets which are both
7031 # in %dependencies and $targets will have two rules).
7033 # FIXME: 2. The logic here is not able to output a
7034 # multi-paragraph rule several time (e.g. for each condition
7035 # it is defined for) because it only knows the first paragraph.
7037 # FIXME: 3. We are not robust to people defining a subset
7038 # of a previously defined "multiple-target" rule. E.g.
7039 # 'foo:' after 'foo bar:'.
7041 # Output only if not in FALSE.
7042 if (defined $dependencies{$_} && $cond != FALSE)
7044 &depend ($_, @deps);
7045 register_action ($_, $actions);
7049 # Free-lance dependency. Output the rule for all the
7050 # targets instead of one by one.
7051 my @undefined_conds =
7052 Automake::Rule::define ($targets, $file,
7053 $is_am ? RULE_AUTOMAKE : RULE_USER,
7055 for my $undefined_cond (@undefined_conds)
7057 my $condparagraph = $paragraph;
7058 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7059 $result_rules .= "$spacing$comment$condparagraph\n";
7061 if (scalar @undefined_conds == 0)
7063 # Remember to discard next paragraphs
7064 # if they belong to this rule.
7065 # (but see also FIXME: #2 above.)
7068 $comment = $spacing = '';
7074 elsif (/$ASSIGNMENT_PATTERN/mso)
7076 my ($var, $type, $val) = ($1, $2, $3);
7077 error $where, "variable '$var' with trailing backslash"
7082 Automake::Variable::define ($var,
7083 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7084 $type, $cond, $val, $comment, $where,
7088 $comment = $spacing = '';
7092 # This isn't an error; it is probably some tokens which
7093 # configure is supposed to replace, such as '@SET-MAKE@',
7094 # or some part of a rule cut by an if/endif.
7095 if (! $cond->false && ! ($is_rule && $discard_rule))
7097 s/^/$cond->subst_string/gme;
7098 $result_rules .= "$spacing$comment$_\n";
7100 $comment = $spacing = '';
7104 error ($where, @cond_stack ?
7105 "unterminated conditionals: @cond_stack" :
7106 "too many conditionals closed in include file")
7107 if "@saved_cond_stack" ne "@cond_stack";
7109 return ($comment, $result_vars, $result_rules);
7114 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7115 # ------------------------------------------------
7116 # Return contents of a file from $libdir/am, automatically skipping
7117 # macros or rules which are already known.
7118 sub file_contents ($$%)
7120 my ($basename, $where, %transform) = @_;
7121 my ($comments, $variables, $rules) =
7122 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7124 return "$comments$variables$rules";
7129 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7130 # -----------------------------------------------------
7131 # Find all variable prefixes that are used for install directories. A
7132 # prefix 'zar' qualifies iff:
7134 # * 'zardir' is a variable.
7135 # * 'zar_PRIMARY' is a variable.
7137 # As a side effect, it looks for misspellings. It is an error to have
7138 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7139 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7140 # of the same name (with "dir" appended) exists. For instance, if the
7141 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7142 # This is to provide a little extra flexibility in those cases which
7144 sub am_primary_prefixes ($$@)
7146 my ($primary, $can_dist, @prefixes) = @_;
7149 my %valid = map { $_ => 0 } @prefixes;
7150 $valid{'EXTRA'} = 0;
7151 foreach my $var (variables $primary)
7153 # Automake is allowed to define variables that look like primaries
7154 # but which aren't. E.g. INSTALL_sh_DATA.
7155 # Autoconf can also define variables like INSTALL_DATA, so
7156 # ignore all configure variables (at least those which are not
7157 # redefined in Makefile.am).
7158 # FIXME: We should make sure that these variables are not
7159 # conditionally defined (or else adjust the condition below).
7160 my $def = $var->def (TRUE);
7161 next if $def && $def->owner != VAR_MAKEFILE;
7163 my $varname = $var->name;
7165 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7167 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7168 if ($dist ne '' && ! $can_dist)
7171 "invalid variable '$varname': 'dist' is forbidden");
7173 # Standard directories must be explicitly allowed.
7174 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7177 "'${X}dir' is not a legitimate directory " .
7180 # A not explicitly valid directory is allowed if Xdir is defined.
7181 elsif (! defined $valid{$X} &&
7182 $var->requires_variables ("'$varname' is used", "${X}dir"))
7184 # Nothing to do. Any error message has been output
7185 # by $var->requires_variables.
7189 # Ensure all extended prefixes are actually used.
7190 $valid{"$base$dist$X"} = 1;
7195 prog_error "unexpected variable name: $varname";
7199 # Return only those which are actually defined.
7200 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7204 # Handle 'where_HOW' variable magic. Does all lookups, generates
7205 # install code, and possibly generates code to define the primary
7206 # variable. The first argument is the name of the .am file to munge,
7207 # the second argument is the primary variable (e.g. HEADERS), and all
7208 # subsequent arguments are possible installation locations.
7210 # Returns list of [$location, $value] pairs, where
7211 # $value's are the values in all where_HOW variable, and $location
7212 # there associated location (the place here their parent variables were
7215 # FIXME: this should be rewritten to be cleaner. It should be broken
7216 # up into multiple functions.
7218 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7225 my $default_dist = 0;
7228 if ($args[0] eq '-noextra')
7232 elsif ($args[0] eq '-candist')
7236 elsif ($args[0] eq '-defaultdist')
7241 elsif ($args[0] !~ /^-/)
7248 my ($file, $primary, @prefix) = @args;
7250 # Now that configure substitutions are allowed in where_HOW
7251 # variables, it is an error to actually define the primary. We
7252 # allow 'JAVA', as it is customarily used to mean the Java
7253 # interpreter. This is but one of several Java hacks. Similarly,
7254 # 'PYTHON' is customarily used to mean the Python interpreter.
7255 reject_var $primary, "'$primary' is an anachronism"
7256 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7258 # Get the prefixes which are valid and actually used.
7259 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7261 # If a primary includes a configure substitution, then the EXTRA_
7262 # form is required. Otherwise we can't properly do our job.
7268 foreach my $X (@prefix)
7270 my $nodir_name = $X;
7271 my $one_name = $X . '_' . $primary;
7272 my $one_var = var $one_name;
7274 my $strip_subdir = 1;
7275 # If subdir prefix should be preserved, do so.
7276 if ($nodir_name =~ /^nobase_/)
7279 $nodir_name =~ s/^nobase_//;
7282 # If files should be distributed, do so.
7286 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7287 || (! $default_dist && $nodir_name =~ /^dist_/));
7288 $nodir_name =~ s/^(dist|nodist)_//;
7292 # Use the location of the currently processed variable.
7293 # We are not processing a particular condition, so pick the first
7295 my $tmpcond = $one_var->conditions->one_cond;
7296 my $where = $one_var->rdef ($tmpcond)->location->clone;
7298 # Append actual contents of where_PRIMARY variable to
7299 # @result, skipping @substitutions@.
7300 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7302 my ($loc, $value) = @$locvals;
7303 # Skip configure substitutions.
7304 if ($value =~ /^\@.*\@$/)
7306 if ($nodir_name eq 'EXTRA')
7309 "'$one_name' contains configure substitution, "
7312 # Check here to make sure variables defined in
7313 # configure.ac do not imply that EXTRA_PRIMARY
7315 elsif (! defined $configure_vars{$one_name})
7317 $require_extra = $one_name
7323 # Strip any $(EXEEXT) suffix the user might have added, or this
7324 # will confuse &handle_source_transform and &check_canonical_spelling.
7325 # We'll add $(EXEEXT) back later anyway.
7326 # Do it here rather than in handle_programs so the uniquifying at the
7327 # end of this function works.
7328 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7329 if $primary eq 'PROGRAMS';
7331 push (@result, $locvals);
7334 # A blatant hack: we rewrite each _PROGRAMS primary to include
7336 append_exeext { 1 } $one_name
7337 if $primary eq 'PROGRAMS';
7338 # "EXTRA" shouldn't be used when generating clean targets,
7339 # all, or install targets. We used to warn if EXTRA_FOO was
7340 # defined uselessly, but this was annoying.
7342 if $nodir_name eq 'EXTRA';
7344 if ($nodir_name eq 'check')
7346 push (@check, '$(' . $one_name . ')');
7350 push (@used, '$(' . $one_name . ')');
7353 # Is this to be installed?
7354 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7356 # If so, with install-exec? (or install-data?).
7357 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7359 my $check_options_p = $install_p && !! option 'std-options';
7361 # Use the location of the currently processed variable as context.
7362 $where->push_context ("while processing '$one_name'");
7364 # The variable containing all files to distribute.
7365 my $distvar = "\$($one_name)";
7366 $distvar = shadow_unconditionally ($one_name, $where)
7367 if ($dist_p && $one_var->has_conditional_contents);
7369 # Singular form of $PRIMARY.
7370 (my $one_primary = $primary) =~ s/S$//;
7371 $output_rules .= &file_contents ($file, $where,
7372 PRIMARY => $primary,
7373 ONE_PRIMARY => $one_primary,
7375 NDIR => $nodir_name,
7376 BASE => $strip_subdir,
7379 INSTALL => $install_p,
7381 DISTVAR => $distvar,
7382 'CK-OPTS' => $check_options_p);
7385 # The JAVA variable is used as the name of the Java interpreter.
7386 # The PYTHON variable is used as the name of the Python interpreter.
7387 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7390 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7391 $output_vars .= "\n";
7394 err_var ($require_extra,
7395 "'$require_extra' contains configure substitution,\n"
7396 . "but 'EXTRA_$primary' not defined")
7397 if ($require_extra && ! var ('EXTRA_' . $primary));
7399 # Push here because PRIMARY might be configure time determined.
7400 push (@all, '$(' . $primary . ')')
7401 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7403 # Make the result unique. This lets the user use conditionals in
7404 # a natural way, but still lets us program lazily -- we don't have
7405 # to worry about handling a particular object more than once.
7406 # We will keep only one location per object.
7408 for my $pair (@result)
7410 my ($loc, $val) = @$pair;
7411 $result{$val} = $loc;
7413 my @l = sort keys %result;
7414 return map { [$result{$_}->clone, $_] } @l;
7418 ################################################################
7420 # Each key in this hash is the name of a directory holding a
7421 # Makefile.in. These variables are local to 'is_make_dir'.
7423 my $make_dirs_set = 0;
7428 if (! $make_dirs_set)
7430 foreach my $iter (@configure_input_files)
7432 $make_dirs{dirname ($iter)} = 1;
7434 # We also want to notice Makefile.in's.
7435 foreach my $iter (@other_input_files)
7437 if ($iter =~ /Makefile\.in$/)
7439 $make_dirs{dirname ($iter)} = 1;
7444 return defined $make_dirs{$dir};
7447 ################################################################
7449 # Find the aux dir. This should match the algorithm used by
7450 # ./configure. (See the Autoconf documentation for for
7451 # AC_CONFIG_AUX_DIR.)
7452 sub locate_aux_dir ()
7454 if (! $config_aux_dir_set_in_configure_ac)
7456 # The default auxiliary directory is the first
7457 # of ., .., or ../.. that contains install-sh.
7458 # Assume . if install-sh doesn't exist yet.
7459 for my $dir (qw (. .. ../..))
7461 if (-f "$dir/install-sh")
7463 $config_aux_dir = $dir;
7467 $config_aux_dir = '.' unless $config_aux_dir;
7469 # Avoid unsightly '/.'s.
7470 $am_config_aux_dir =
7471 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7472 $am_config_aux_dir =~ s,/*$,,;
7476 # &push_required_file ($DIR, $FILE, $FULLFILE)
7477 # --------------------------------------------------
7478 # Push the given file onto DIST_COMMON.
7479 sub push_required_file
7481 my ($dir, $file, $fullfile) = @_;
7483 # If the file to be distributed is in the same directory of the
7484 # currently processed Makefile.am, then we want to distribute it
7485 # from this same Makefile.am.
7486 if ($dir eq $relative_dir)
7488 push_dist_common ($file);
7490 # This is needed to allow a construct in a non-top-level Makefile.am
7491 # to require a file in the build-aux directory (see at least the test
7492 # script 'test-driver-is-distributed.test'). This is related to the
7493 # automake bug#9546. Note that the use of $config_aux_dir instead
7494 # of $am_config_aux_dir here is deliberate and necessary.
7495 elsif ($dir eq $config_aux_dir)
7497 push_dist_common ("$am_config_aux_dir/$file");
7499 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7500 # We probably need some refactoring of this function and its callers,
7501 # to have a more explicit and systematic handling of all the special
7502 # cases; but, since there are only two of them, this is low-priority
7504 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7506 # Avoid unsightly '/.'s.
7507 my $am_config_libobj_dir =
7509 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7510 $am_config_libobj_dir =~ s|/*$||;
7511 push_dist_common ("$am_config_libobj_dir/$file");
7513 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7515 # If we are doing the topmost directory, and the file is in a
7516 # subdir which does not have a Makefile, then we distribute it
7519 # If a required file is above the source tree, it is important
7520 # to prefix it with '$(srcdir)' so that no VPATH search is
7521 # performed. Otherwise problems occur with Make implementations
7522 # that rewrite and simplify rules whose dependencies are found in a
7523 # VPATH location. Here is an example with OSF1/Tru64 Make.
7535 # Dependency '../a' was found in 'sub/../a', but this make
7536 # implementation simplified it as 'a'. (Note that the sub/
7537 # directory does not even exist.)
7539 # This kind of VPATH rewriting seems hard to cancel. The
7540 # distdir.am hack against VPATH rewriting works only when no
7541 # simplification is done, i.e., for dependencies which are in
7542 # subdirectories, not in enclosing directories. Hence, in
7543 # the latter case we use a full path to make sure no VPATH
7545 $fullfile = '$(srcdir)/' . $fullfile
7546 if $dir =~ m,^\.\.(?:$|/),;
7548 push_dist_common ($fullfile);
7552 prog_error "a Makefile in relative directory $relative_dir " .
7553 "can't add files in directory $dir to DIST_COMMON";
7558 # If a file name appears as a key in this hash, then it has already
7559 # been checked for. This allows us not to report the same error more
7561 my %required_file_not_found = ();
7563 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7564 # --------------------------------------------------------
7565 # Verify that the file must exist in $DIRECTORY, or install it.
7566 sub required_file_check_or_copy ($$$)
7568 my ($where, $dir, $file) = @_;
7570 my $fullfile = "$dir/$file";
7572 my $dangling_sym = 0;
7574 if (-l $fullfile && ! -f $fullfile)
7578 elsif (dir_has_case_matching_file ($dir, $file))
7583 # '--force-missing' only has an effect if '--add-missing' is
7586 if $found_it && (! $add_missing || ! $force_missing);
7588 # If we've already looked for it, we're done. You might
7589 # wonder why we don't do this before searching for the
7590 # file. If we do that, then something like
7591 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7595 return if defined $required_file_not_found{$fullfile};
7596 $required_file_not_found{$fullfile} = 1;
7598 if ($dangling_sym && $add_missing)
7607 # Only install missing files according to our desired
7609 my $message = "required file '$fullfile' not found";
7612 if (-f "$libdir/$file")
7616 # Install the missing file. Symlink if we
7617 # can, copy if we must. Note: delete the file
7618 # first, in case it is a dangling symlink.
7619 $message = "installing '$fullfile'";
7621 # The license file should not be volatile.
7622 if ($file eq "COPYING")
7624 $message .= " using GNU General Public License v3 file";
7625 $trailer2 = "\n Consider adding the COPYING file"
7626 . " to the version control system"
7627 . "\n for your code, to avoid questions"
7628 . " about which license your project uses";
7631 # Windows Perl will hang if we try to delete a
7632 # file that doesn't exist.
7633 unlink ($fullfile) if -f $fullfile;
7634 if ($symlink_exists && ! $copy_missing)
7636 if (! symlink ("$libdir/$file", $fullfile)
7640 $trailer = "; error while making link: $!";
7643 elsif (system ('cp', "$libdir/$file", $fullfile))
7646 $trailer = "\n error while copying";
7648 set_dir_cache_file ($dir, $file);
7653 $trailer = "\n 'automake --add-missing' can install '$file'"
7654 if -f "$libdir/$file";
7657 # If --force-missing was specified, and we have
7658 # actually found the file, then do nothing.
7660 if $found_it && $force_missing;
7662 # If we couldn't install the file, but it is a target in
7663 # the Makefile, don't print anything. This allows files
7664 # like README, AUTHORS, or THANKS to be generated.
7666 if !$suppress && rule $file;
7668 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7672 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7673 # ----------------------------------------------------------------------
7674 # Verify that the file must exist in $DIRECTORY, or install it.
7675 # $MYSTRICT is the strictness level at which this file becomes required.
7676 # Worker threads may queue up the action to be serialized by the master,
7678 sub require_file_internal ($$$@)
7680 my ($where, $mystrict, $dir, $queue, @files) = @_;
7683 unless $strictness >= $mystrict;
7685 foreach my $file (@files)
7687 push_required_file ($dir, $file, "$dir/$file");
7690 queue_required_file_check_or_copy ($required_conf_file_queue,
7691 QUEUE_CONF_FILE, $relative_dir,
7692 $where, $mystrict, @files);
7696 required_file_check_or_copy ($where, $dir, $file);
7701 # &require_file ($WHERE, $MYSTRICT, @FILES)
7702 # -----------------------------------------
7703 sub require_file ($$@)
7705 my ($where, $mystrict, @files) = @_;
7706 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7709 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7710 # -----------------------------------------------------------
7711 sub require_file_with_macro ($$$@)
7713 my ($cond, $macro, $mystrict, @files) = @_;
7714 $macro = rvar ($macro) unless ref $macro;
7715 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7718 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7719 # ----------------------------------------------------------------
7720 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7721 # must be in that directory. Otherwise expect it in the current directory.
7722 sub require_libsource_with_macro ($$$@)
7724 my ($cond, $macro, $mystrict, @files) = @_;
7725 $macro = rvar ($macro) unless ref $macro;
7726 if ($config_libobj_dir)
7728 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7729 $config_libobj_dir, 0, @files);
7733 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7737 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7738 # $MYSTRICT, @FILES)
7739 # ---------------------------------------------------------------
7740 sub queue_required_file_check_or_copy ($$$$@)
7742 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7746 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7750 @serial_loc = (QUEUE_STRING, $where);
7752 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7755 # &require_queued_file_check_or_copy ($QUEUE)
7756 # -------------------------------------------
7757 sub require_queued_file_check_or_copy ($)
7761 my $dir = $queue->dequeue ();
7762 my $loc_key = $queue->dequeue ();
7763 if ($loc_key eq QUEUE_LOCATION)
7765 $where = Automake::Location::deserialize ($queue);
7767 elsif ($loc_key eq QUEUE_STRING)
7769 $where = $queue->dequeue ();
7773 prog_error "unexpected key $loc_key";
7775 my $mystrict = $queue->dequeue ();
7776 my $nfiles = $queue->dequeue ();
7778 push @files, $queue->dequeue ()
7779 foreach (1 .. $nfiles);
7781 unless $strictness >= $mystrict;
7782 foreach my $file (@files)
7784 required_file_check_or_copy ($where, $config_aux_dir, $file);
7788 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7789 # ----------------------------------------------
7790 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7791 sub require_conf_file ($$@)
7793 my ($where, $mystrict, @files) = @_;
7794 my $queue = defined $required_conf_file_queue ? 1 : 0;
7795 require_file_internal ($where, $mystrict, $config_aux_dir,
7800 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7801 # ----------------------------------------------------------------
7802 sub require_conf_file_with_macro ($$$@)
7804 my ($cond, $macro, $mystrict, @files) = @_;
7805 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7809 ################################################################
7811 # &require_build_directory ($DIRECTORY)
7812 # -------------------------------------
7813 # Emit rules to create $DIRECTORY if needed, and return
7814 # the file that any target requiring this directory should be made
7816 # We don't want to emit the rule twice, and want to reuse it
7817 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7818 sub require_build_directory ($)
7820 my $directory = shift;
7822 return $directory_map{$directory} if exists $directory_map{$directory};
7824 my $cdir = File::Spec->canonpath ($directory);
7826 if (exists $directory_map{$cdir})
7828 my $stamp = $directory_map{$cdir};
7829 $directory_map{$directory} = $stamp;
7833 my $dirstamp = "$cdir/\$(am__dirstamp)";
7835 $directory_map{$directory} = $dirstamp;
7836 $directory_map{$cdir} = $dirstamp;
7838 # Set a variable for the dirstamp basename.
7839 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7840 '$(am__leading_dot)dirstamp');
7842 # Directory must be removed by 'make distclean'.
7843 $clean_files{$dirstamp} = DIST_CLEAN;
7845 $output_rules .= ("$dirstamp:\n"
7846 . "\t\@\$(MKDIR_P) $directory\n"
7847 . "\t\@: > $dirstamp\n");
7852 # &require_build_directory_maybe ($FILE)
7853 # --------------------------------------
7854 # If $FILE lies in a subdirectory, emit a rule to create this
7855 # directory and return the file that $FILE should be made
7856 # dependent upon. Otherwise, just return the empty string.
7857 sub require_build_directory_maybe ($)
7860 my $directory = dirname ($file);
7862 if ($directory ne '.')
7864 return require_build_directory ($directory);
7872 ################################################################
7874 # Push a list of files onto dist_common.
7875 sub push_dist_common
7877 prog_error "push_dist_common run after handle_dist"
7878 if $handle_dist_run;
7879 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7880 '', INTERNAL, VAR_PRETTY);
7884 ################################################################
7886 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7887 # ----------------------------------------------
7888 # Generate a Makefile.in given the name of the corresponding Makefile and
7889 # the name of the file output by config.status.
7890 sub generate_makefile ($$)
7892 my ($makefile_am, $makefile_in) = @_;
7894 # Reset all the Makefile.am related variables.
7895 initialize_per_input;
7897 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7898 # warnings for this file. So hold any warning issued before
7899 # we have processed AUTOMAKE_OPTIONS.
7900 buffer_messages ('warning');
7902 # Name of input file ("Makefile.am") and output file
7903 # ("Makefile.in"). These have no directory components.
7904 $am_file_name = basename ($makefile_am);
7905 $in_file_name = basename ($makefile_in);
7907 # $OUTPUT is encoded. If it contains a ":" then the first element
7908 # is the real output file, and all remaining elements are input
7909 # files. We don't scan or otherwise deal with these input files,
7910 # other than to mark them as dependencies. See
7911 # &scan_autoconf_files for details.
7912 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7914 $relative_dir = dirname ($makefile);
7915 $am_relative_dir = dirname ($makefile_am);
7916 $topsrcdir = backname ($relative_dir);
7918 read_main_am_file ($makefile_am);
7921 # Process buffered warnings.
7923 # Fatal error. Just return, so we can continue with next file.
7926 # Process buffered warnings.
7929 # There are a few install-related variables that you should not define.
7930 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7935 my $def = $v->def (TRUE);
7936 prog_error "$var not defined in condition TRUE"
7938 reject_var $var, "'$var' should not be defined"
7939 if $def->owner != VAR_AUTOMAKE;
7943 # Catch some obsolete variables.
7944 msg_var ('obsolete', 'INCLUDES',
7945 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7946 if var ('INCLUDES');
7948 # Must do this after reading .am file.
7949 define_variable ('subdir', $relative_dir, INTERNAL);
7951 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7952 # recursive rules are enabled.
7953 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7954 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7956 # Check first, because we might modify some state.
7957 check_gnu_standards;
7958 check_gnits_standards;
7960 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7969 # These must be run after all the sources are scanned. They
7970 # use variables defined by &handle_libraries, &handle_ltlibraries,
7971 # or &handle_programs.
7976 # Variables used by distdir.am and tags.am.
7977 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7978 if (! option 'no-dist')
7980 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7991 handle_user_recursion;
7993 handle_minor_options;
7994 # Must come after handle_programs so that %known_programs is up-to-date.
7997 # This must come after most other rules.
8001 do_check_merge_target;
8002 handle_all ($makefile);
8005 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8007 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8009 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8011 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8015 handle_clean ($makefile);
8016 handle_factored_dependencies;
8018 # Comes last, because all the above procedures may have
8019 # defined or overridden variables.
8020 $output_vars .= output_variables;
8024 if ($exit_code != 0)
8026 verb "not writing $makefile_in because of earlier errors";
8030 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8032 # We make sure that 'all:' is the first target.
8034 "$output_vars$output_all$output_header$output_rules$output_trailer";
8036 # Decide whether we must update the output file or not.
8037 # We have to update in the following situations.
8038 # * $force_generation is set.
8039 # * any of the output dependencies is younger than the output
8040 # * the contents of the output is different (this can happen
8041 # if the project has been populated with a file listed in
8042 # @common_files since the last run).
8043 # Output's dependencies are split in two sets:
8044 # * dependencies which are also configure dependencies
8045 # These do not change between each Makefile.am
8046 # * other dependencies, specific to the Makefile.am being processed
8047 # (such as the Makefile.am itself, or any Makefile fragment
8049 my $timestamp = mtime $makefile_in;
8050 if (! $force_generation
8051 && $configure_deps_greatest_timestamp < $timestamp
8052 && $output_deps_greatest_timestamp < $timestamp
8053 && $output eq contents ($makefile_in))
8055 verb "$makefile_in unchanged";
8056 # No need to update.
8060 if (-e $makefile_in)
8062 unlink ($makefile_in)
8063 or fatal "cannot remove $makefile_in: $!";
8066 my $gm_file = new Automake::XFile "> $makefile_in";
8067 verb "creating $makefile_in";
8068 print $gm_file $output;
8071 ################################################################
8076 ################################################################
8078 # Helper function for usage().
8079 sub print_autodist_files (@)
8081 my @lcomm = sort (&uniq (@_));
8084 format USAGE_FORMAT =
8085 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8086 $four[0], $four[1], $four[2], $four[3]
8088 local $~ = "USAGE_FORMAT";
8091 my $rows = int(@lcomm / $cols);
8092 my $rest = @lcomm % $cols;
8103 for (my $y = 0; $y < $rows; $y++)
8105 @four = ("", "", "", "");
8106 for (my $x = 0; $x < $cols; $x++)
8108 last if $y + 1 == $rows && $x == $rest;
8110 my $idx = (($x > $rest)
8111 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8115 $four[$x] = $lcomm[$idx];
8122 # Print usage information.
8125 print "Usage: $0 [OPTION]... [Makefile]...
8127 Generate Makefile.in for configure from Makefile.am.
8130 --help print this help, then exit
8131 --version print version number, then exit
8132 -v, --verbose verbosely list files processed
8133 --no-force only update Makefile.in's that are out of date
8134 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8136 Dependency tracking:
8137 -i, --ignore-deps disable dependency tracking code
8138 --include-deps enable dependency tracking code
8141 --foreign set strictness to foreign
8142 --gnits set strictness to gnits
8143 --gnu set strictness to gnu
8146 -a, --add-missing add missing standard files to package
8147 --libdir=DIR set directory storing library files
8148 --print-libdir print directory storing library files
8149 -c, --copy with -a, copy missing files (default is symlink)
8150 -f, --force-missing force update of standard files
8153 Automake::ChannelDefs::usage;
8155 print "\nFiles automatically distributed if found " .
8157 print_autodist_files @common_files;
8158 print "\nFiles automatically distributed if found " .
8159 "(under certain conditions):\n";
8160 print_autodist_files @common_sometimes;
8163 Report bugs to <@PACKAGE_BUGREPORT@>.
8164 GNU Automake home page: <@PACKAGE_URL@>.
8165 General help using GNU software: <http://www.gnu.org/gethelp/>.
8168 # --help always returns 0 per GNU standards.
8175 # Print version information
8179 automake (GNU $PACKAGE) $VERSION
8180 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8181 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8182 This is free software: you are free to change and redistribute it.
8183 There is NO WARRANTY, to the extent permitted by law.
8185 Written by Tom Tromey <tromey\@redhat.com>
8186 and Alexandre Duret-Lutz <adl\@gnu.org>.
8188 # --version always returns 0 per GNU standards.
8192 ################################################################
8194 # Parse command line.
8195 sub parse_arguments ()
8198 my $ignore_deps = 0;
8203 'version' => \&version,
8205 'libdir=s' => \$libdir,
8206 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8207 'gnu' => sub { $strict = 'gnu'; },
8208 'gnits' => sub { $strict = 'gnits'; },
8209 'foreign' => sub { $strict = 'foreign'; },
8210 'include-deps' => sub { $ignore_deps = 0; },
8211 'i|ignore-deps' => sub { $ignore_deps = 1; },
8212 'no-force' => sub { $force_generation = 0; },
8213 'f|force-missing' => \$force_missing,
8214 'a|add-missing' => \$add_missing,
8215 'c|copy' => \$copy_missing,
8216 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8217 'W|warnings=s' => \@warnings,
8220 use Automake::Getopt ();
8221 Automake::Getopt::parse_options %cli_options;
8223 set_strictness ($strict);
8224 my $cli_where = new Automake::Location;
8225 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8226 for my $warning (@warnings)
8228 &parse_warnings ('-W', $warning);
8231 return unless @ARGV;
8234 foreach my $arg (@ARGV)
8236 fatal ("empty argument\nTry '$0 --help' for more information")
8239 # Handle $local:$input syntax.
8240 my ($local, @rest) = split (/:/, $arg);
8241 @rest = ("$local.in",) unless @rest;
8242 my $input = locate_am @rest;
8245 push @input_files, $input;
8246 $output_files{$input} = join (':', ($local, @rest));
8250 error "no Automake input file found for '$arg'";
8254 fatal "no input file found among supplied arguments"
8255 if $errspec && ! @input_files;
8259 # handle_makefile ($MAKEFILE_IN)
8260 # ------------------------------
8261 # Deal with $MAKEFILE_IN.
8262 sub handle_makefile ($)
8265 ($am_file = $file) =~ s/\.in$//;
8266 if (! -f ($am_file . '.am'))
8268 error "'$am_file.am' does not exist";
8272 # Any warning setting now local to this Makefile.am.
8275 generate_makefile ($am_file . '.am', $file);
8277 # Back out any warning setting.
8282 # handle_makefiles_serial ()
8283 # --------------------------
8284 # Deal with all makefiles, without threads.
8285 sub handle_makefiles_serial ()
8287 foreach my $file (@input_files)
8289 handle_makefile ($file);
8293 # get_number_of_threads ()
8294 # ------------------------
8295 # Logic for deciding how many worker threads to use.
8296 sub get_number_of_threads
8298 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8301 unless $nthreads =~ /^[0-9]+$/;
8303 # It doesn't make sense to use more threads than makefiles,
8304 my $max_threads = @input_files;
8306 if ($nthreads > $max_threads)
8308 $nthreads = $max_threads;
8313 # handle_makefiles_threaded ($NTHREADS)
8314 # -------------------------------------
8315 # Deal with all makefiles, using threads. The general strategy is to
8316 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8317 # worker threads push back everything that needs serialization:
8318 # * warning and (normal) error messages, for stable stderr output
8319 # order and content (avoiding duplicates, for example),
8320 # * races when installing aux files (and respective messages),
8321 # * races when collecting aux files for distribution.
8323 # The latter requires that the makefile that deals with the aux dir
8324 # files be handled last, done by the master thread.
8325 sub handle_makefiles_threaded ($)
8327 my ($nthreads) = @_;
8329 # The file queue distributes all makefiles, the message queues
8330 # collect all serializations needed for respective files.
8331 my $file_queue = Thread::Queue->new;
8333 foreach my $file (@input_files)
8335 $msg_queues{$file} = Thread::Queue->new;
8338 verb "spawning $nthreads worker threads";
8339 my @threads = (1 .. $nthreads);
8340 foreach my $t (@threads)
8342 $t = threads->new (sub
8344 while (my $file = $file_queue->dequeue)
8346 verb "handling $file";
8347 my $queue = $msg_queues{$file};
8348 setup_channel_queue ($queue, QUEUE_MESSAGE);
8349 $required_conf_file_queue = $queue;
8350 handle_makefile ($file);
8351 $queue->enqueue (undef);
8352 setup_channel_queue (undef, undef);
8353 $required_conf_file_queue = undef;
8359 # Queue all makefiles.
8360 verb "queuing " . @input_files . " input files";
8361 $file_queue->enqueue (@input_files, (undef) x @threads);
8363 # Collect and process serializations.
8364 foreach my $file (@input_files)
8366 verb "dequeuing messages for " . $file;
8367 reset_local_duplicates ();
8368 my $queue = $msg_queues{$file};
8369 while (my $key = $queue->dequeue)
8371 if ($key eq QUEUE_MESSAGE)
8373 pop_channel_queue ($queue);
8375 elsif ($key eq QUEUE_CONF_FILE)
8377 require_queued_file_check_or_copy ($queue);
8381 prog_error "unexpected key $key";
8386 foreach my $t (@threads)
8388 my @exit_thread = $t->join;
8389 $exit_code = $exit_thread[0]
8390 if ($exit_thread[0] > $exit_code);
8394 ################################################################
8396 # Parse the WARNINGS environment variable.
8399 # Parse command line.
8402 $configure_ac = require_configure_ac;
8404 # Do configure.ac scan only once.
8405 scan_autoconf_files;
8410 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8411 if -f 'Makefile.am';
8412 fatal ("no 'Makefile.am' found for any configure output$msg");
8415 my $nthreads = get_number_of_threads ();
8417 if ($perl_threads && $nthreads >= 1)
8419 handle_makefiles_threaded ($nthreads);
8423 handle_makefiles_serial ();
8429 ### Setup "GNU" style for perl-mode and cperl-mode.
8431 ## perl-indent-level: 2
8432 ## perl-continued-statement-offset: 2
8433 ## perl-continued-brace-offset: 0
8434 ## perl-brace-offset: 0
8435 ## perl-brace-imaginary-offset: 0
8436 ## perl-label-offset: -2
8437 ## cperl-indent-level: 2
8438 ## cperl-brace-offset: 0
8439 ## cperl-continued-brace-offset: 0
8440 ## cperl-label-offset: -2
8441 ## cperl-extra-newline-before-brace: t
8442 ## cperl-merge-trailing-else: nil
8443 ## cperl-continued-statement-offset: 2