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 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;
377 # Where AM_MAINTAINER_MODE appears.
380 # Actual version we've seen.
381 my $package_version = '';
383 # Where version is defined.
384 my $package_version_location;
386 # TRUE if we've seen AM_PROG_AR
389 # TRUE if we've seen AM_PROG_CC_C_O
392 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
393 my %required_aux_file = ();
395 # Where AM_INIT_AUTOMAKE is called;
396 my $seen_init_automake = 0;
398 # TRUE if we've seen AM_AUTOMAKE_VERSION.
399 my $seen_automake_version = 0;
401 # Hash table of discovered configure substitutions. Keys are names,
402 # values are 'FILE:LINE' strings which are used by error message
404 my %configure_vars = ();
406 # Ignored configure substitutions (i.e., variables not to be output in
408 my %ignored_configure_vars = ();
410 # Files included by $configure_ac.
411 my @configure_deps = ();
413 # Greatest timestamp of configure's dependencies.
414 my $configure_deps_greatest_timestamp = 0;
416 # Hash table of AM_CONDITIONAL variables seen in configure.
417 my %configure_cond = ();
419 # This maps extensions onto language names.
420 my %extension_map = ();
422 # List of the DIST_COMMON files we discovered while reading
424 my $configure_dist_common = '';
426 # This maps languages names onto objects.
428 # Maps each linker variable onto a language object.
429 my %link_languages = ();
431 # maps extensions to needed source flags.
432 my %sourceflags = ();
434 # List of targets we must always output.
435 # FIXME: Complete, and remove falsely required targets.
436 my %required_targets =
449 # FIXME: Not required, temporary hacks.
450 # Well, actually they are sort of required: the -recursive
451 # targets will run them anyway...
457 'install-data-am' => 1,
458 'install-exec-am' => 1,
459 'install-html-am' => 1,
460 'install-dvi-am' => 1,
461 'install-pdf-am' => 1,
462 'install-ps-am' => 1,
463 'install-info-am' => 1,
464 'installcheck-am' => 1,
468 'cscopelist-am' => 1,
472 # Queue to push require_conf_file requirements to.
473 my $required_conf_file_queue;
475 # The name of the Makefile currently being processed.
478 ################################################################
480 ## ------------------------------------------ ##
481 ## Variables reset by &initialize_per_input. ##
482 ## ------------------------------------------ ##
484 # Relative dir of the output makefile.
487 # Greatest timestamp of the output's dependencies (excluding
488 # configure's dependencies).
489 my $output_deps_greatest_timestamp;
491 # These variables are used when generating each Makefile.in.
492 # They hold the Makefile.in until it is ready to be printed.
499 # This is the conditional stack, updated on if/else/endif, and
500 # used to build Condition objects.
503 # This holds the set of included files.
506 # List of dependencies for the obvious targets.
511 # Keys in this hash table are files to delete. The associated
512 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
515 # Keys in this hash table are object files or other files in
516 # subdirectories which need to be removed. This only holds files
517 # which are created by compilations. The value in the hash indicates
518 # when the file should be removed.
519 my %compile_clean_files;
521 # Keys in this hash table are directories where we expect to build a
522 # libtool object. We use this information to decide what directories
524 my %libtool_clean_directories;
526 # Value of $(SOURCES), used by tags.am.
528 # Sources which go in the distribution.
531 # This hash maps object file names onto their corresponding source
532 # file names. This is used to ensure that each object is created
533 # by a single source file.
536 # This hash maps object file names onto an integer value representing
537 # whether this object has been built via ordinary compilation or
538 # libtool compilation (the COMPILE_* constants).
539 my %object_compilation_map;
542 # This keeps track of the directories for which we've already
543 # created dirstamp code. Keys are directories, values are stamp files.
544 # Several keys can share the same stamp files if they are equivalent
545 # (as are './/foo' and 'foo').
551 # This is a list of all targets to run during "make dist".
554 # Keep track of all programs declared in this Makefile, without
555 # $(EXEEXT). @substitutions@ are not listed.
559 # This keeps track of which extensions we've seen (that we care
563 # This is random scratch space for the language finish functions.
564 # Don't randomly overwrite it; examine other uses of keys first.
565 my %language_scratch;
567 # We keep track of which objects need special (per-executable)
568 # handling on a per-language basis.
569 my %lang_specific_files;
571 # This is set when 'handle_dist' has finished. Once this happens,
572 # we should no longer push on dist_common.
575 # Used to store a set of linkers needed to generate the sources currently
576 # under consideration.
579 # True if we need 'LINK' defined. This is a hack.
582 # Does the generated Makefile have to build some compiled object
583 # (for binary programs, or plain or libtool libraries)?
584 my $must_handle_compiled_objects;
586 # Record each file processed by make_paragraphs.
587 my %transformed_files;
589 ################################################################
591 ## ---------------------------------------------- ##
592 ## Variables not reset by &initialize_per_input. ##
593 ## ---------------------------------------------- ##
595 # Cache each file processed by make_paragraphs.
596 # (This is different from %transformed_files because
597 # %transformed_files is reset for each file while %am_file_cache
598 # it global to the run.)
601 ################################################################
603 # var_SUFFIXES_trigger ($TYPE, $VALUE)
604 # ------------------------------------
605 # This is called by Automake::Variable::define() when SUFFIXES
606 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
607 # The work here needs to be performed as a side-effect of the
608 # macro_define() call because SUFFIXES definitions impact
609 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
611 sub var_SUFFIXES_trigger ($$)
613 my ($type, $value) = @_;
614 accept_extensions (split (' ', $value));
616 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
618 ################################################################
620 ## --------------------------------- ##
621 ## Forward subroutine declarations. ##
622 ## --------------------------------- ##
623 sub register_language (%);
624 sub file_contents_internal ($$$%);
625 sub define_files_variable ($\@$$);
628 # &initialize_per_input ()
629 # ------------------------
630 # (Re)-Initialize per-Makefile.am variables.
631 sub initialize_per_input ()
633 reset_local_duplicates ();
635 $relative_dir = undef;
637 $output_deps_greatest_timestamp = 0;
643 $output_trailer = '';
645 Automake::Options::reset;
646 Automake::Variable::reset;
647 Automake::Rule::reset;
658 %compile_clean_files = ();
660 # We always include '.'. This isn't strictly correct.
661 %libtool_clean_directories = ('.' => 1);
667 %object_compilation_map = ();
675 %known_programs = ();
676 %known_libraries= ();
678 %extension_seen = ();
680 %language_scratch = ();
682 %lang_specific_files = ();
684 $handle_dist_run = 0;
688 $must_handle_compiled_objects = 0;
690 %transformed_files = ();
694 ################################################################
696 # Initialize our list of languages that are internally supported.
699 register_language ('name' => 'c',
701 'config_vars' => ['CC'],
703 'flags' => ['CFLAGS', 'CPPFLAGS'],
705 'compiler' => 'COMPILE',
706 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
710 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
711 'compile_flag' => '-c',
712 'libtool_tag' => 'CC',
713 'extensions' => ['.c']);
716 register_language ('name' => 'cxx',
718 'config_vars' => ['CXX'],
719 'linker' => 'CXXLINK',
720 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
722 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
723 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
725 'compiler' => 'CXXCOMPILE',
726 'compile_flag' => '-c',
727 'output_flag' => '-o',
728 'libtool_tag' => 'CXX',
732 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
735 register_language ('name' => 'objc',
736 'Name' => 'Objective C',
737 'config_vars' => ['OBJC'],
738 'linker' => 'OBJCLINK',
739 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
741 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
742 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
744 'compiler' => 'OBJCCOMPILE',
745 'compile_flag' => '-c',
746 'output_flag' => '-o',
750 'extensions' => ['.m']);
753 register_language ('name' => 'objcxx',
754 'Name' => 'Objective C++',
755 'config_vars' => ['OBJCXX'],
756 'linker' => 'OBJCXXLINK',
757 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
758 'autodep' => 'OBJCXX',
759 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
760 'compile' => '$(OBJCXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS)',
762 'compiler' => 'OBJCXXCOMPILE',
763 'compile_flag' => '-c',
764 'output_flag' => '-o',
765 'lder' => 'OBJCXXLD',
768 'extensions' => ['.mm']);
770 # Unified Parallel C.
771 register_language ('name' => 'upc',
772 'Name' => 'Unified Parallel C',
773 'config_vars' => ['UPC'],
774 'linker' => 'UPCLINK',
775 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
777 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
778 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
780 'compiler' => 'UPCCOMPILE',
781 'compile_flag' => '-c',
782 'output_flag' => '-o',
786 'extensions' => ['.upc']);
789 register_language ('name' => 'header',
791 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
794 'output_extensions' => sub { return () },
796 '_finish' => sub { });
799 register_language ('name' => 'vala',
801 'config_vars' => ['VALAC'],
803 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
805 'compiler' => 'VALACOMPILE',
806 'extensions' => ['.vala'],
807 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
809 'rule_file' => 'vala',
810 '_finish' => \&lang_vala_finish,
811 '_target_hook' => \&lang_vala_target_hook,
812 'nodist_specific' => 1);
815 register_language ('name' => 'yacc',
817 'config_vars' => ['YACC'],
818 'flags' => ['YFLAGS'],
819 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
821 'compiler' => 'YACCCOMPILE',
822 'extensions' => ['.y'],
823 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
825 'rule_file' => 'yacc',
826 '_finish' => \&lang_yacc_finish,
827 '_target_hook' => \&lang_yacc_target_hook,
828 'nodist_specific' => 1);
829 register_language ('name' => 'yaccxx',
830 'Name' => 'Yacc (C++)',
831 'config_vars' => ['YACC'],
832 'rule_file' => 'yacc',
833 'flags' => ['YFLAGS'],
835 'compiler' => 'YACCCOMPILE',
836 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
837 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
838 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
840 '_finish' => \&lang_yacc_finish,
841 '_target_hook' => \&lang_yacc_target_hook,
842 'nodist_specific' => 1);
845 register_language ('name' => 'lex',
847 'config_vars' => ['LEX'],
848 'rule_file' => 'lex',
849 'flags' => ['LFLAGS'],
850 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
852 'compiler' => 'LEXCOMPILE',
853 'extensions' => ['.l'],
854 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
856 '_finish' => \&lang_lex_finish,
857 '_target_hook' => \&lang_lex_target_hook,
858 'nodist_specific' => 1);
859 register_language ('name' => 'lexxx',
860 'Name' => 'Lex (C++)',
861 'config_vars' => ['LEX'],
862 'rule_file' => 'lex',
863 'flags' => ['LFLAGS'],
864 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
866 'compiler' => 'LEXCOMPILE',
867 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
868 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
870 '_finish' => \&lang_lex_finish,
871 '_target_hook' => \&lang_lex_target_hook,
872 'nodist_specific' => 1);
875 register_language ('name' => 'asm',
876 'Name' => 'Assembler',
877 'config_vars' => ['CCAS', 'CCASFLAGS'],
879 'flags' => ['CCASFLAGS'],
880 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
881 # or anything else required. They can also set CCAS.
882 # Or simply use Preprocessed Assembler.
883 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
885 'compiler' => 'CCASCOMPILE',
886 'compile_flag' => '-c',
887 'output_flag' => '-o',
888 'extensions' => ['.s']);
890 # Preprocessed Assembler.
891 register_language ('name' => 'cppasm',
892 'Name' => 'Preprocessed Assembler',
893 'config_vars' => ['CCAS', 'CCASFLAGS'],
896 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
897 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
899 'compiler' => 'CPPASCOMPILE',
900 'compile_flag' => '-c',
901 'output_flag' => '-o',
902 'extensions' => ['.S', '.sx']);
905 register_language ('name' => 'f77',
906 'Name' => 'Fortran 77',
907 'config_vars' => ['F77'],
908 'linker' => 'F77LINK',
909 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
910 'flags' => ['FFLAGS'],
911 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
913 'compiler' => 'F77COMPILE',
914 'compile_flag' => '-c',
915 'output_flag' => '-o',
916 'libtool_tag' => 'F77',
920 'extensions' => ['.f', '.for']);
923 register_language ('name' => 'fc',
925 'config_vars' => ['FC'],
926 'linker' => 'FCLINK',
927 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
928 'flags' => ['FCFLAGS'],
929 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
931 'compiler' => 'FCCOMPILE',
932 'compile_flag' => '-c',
933 'output_flag' => '-o',
934 'libtool_tag' => 'FC',
938 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
940 # Preprocessed Fortran
941 register_language ('name' => 'ppfc',
942 'Name' => 'Preprocessed Fortran',
943 'config_vars' => ['FC'],
944 'linker' => 'FCLINK',
945 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
948 'flags' => ['FCFLAGS', 'CPPFLAGS'],
950 'compiler' => 'PPFCCOMPILE',
951 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
952 'compile_flag' => '-c',
953 'output_flag' => '-o',
954 'libtool_tag' => 'FC',
956 'extensions' => ['.F90','.F95', '.F03', '.F08']);
958 # Preprocessed Fortran 77
960 # The current support for preprocessing Fortran 77 just involves
961 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
962 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
963 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
964 # for 'make' Version 3.76 Beta" (specifically, from info file
965 # '(make)Catalogue of Rules').
967 # A better approach would be to write an Autoconf test
968 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
969 # Fortran 77 compilers know how to do preprocessing. The Autoconf
970 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
971 # preprocessing capabilities, and then fall back on cpp (if cpp were
973 register_language ('name' => 'ppf77',
974 'Name' => 'Preprocessed Fortran 77',
975 'config_vars' => ['F77'],
976 'linker' => 'F77LINK',
977 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
980 'flags' => ['FFLAGS', 'CPPFLAGS'],
982 'compiler' => 'PPF77COMPILE',
983 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
984 'compile_flag' => '-c',
985 'output_flag' => '-o',
986 'libtool_tag' => 'F77',
988 'extensions' => ['.F']);
991 register_language ('name' => 'ratfor',
993 'config_vars' => ['F77'],
994 'linker' => 'F77LINK',
995 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
998 'flags' => ['RFLAGS', 'FFLAGS'],
1000 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1002 'compiler' => 'RCOMPILE',
1003 'compile_flag' => '-c',
1004 'output_flag' => '-o',
1005 'libtool_tag' => 'F77',
1007 'extensions' => ['.r']);
1010 register_language ('name' => 'java',
1012 'config_vars' => ['GCJ'],
1013 'linker' => 'GCJLINK',
1014 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1016 'flags' => ['GCJFLAGS'],
1017 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1019 'compiler' => 'GCJCOMPILE',
1020 'compile_flag' => '-c',
1021 'output_flag' => '-o',
1022 'libtool_tag' => 'GCJ',
1026 'extensions' => ['.java', '.class', '.zip', '.jar']);
1028 ################################################################
1030 # Error reporting functions.
1032 # err_am ($MESSAGE, [%OPTIONS])
1033 # -----------------------------
1034 # Uncategorized errors about the current Makefile.am.
1037 msg_am ('error', @_);
1040 # err_ac ($MESSAGE, [%OPTIONS])
1041 # -----------------------------
1042 # Uncategorized errors about configure.ac.
1045 msg_ac ('error', @_);
1048 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1049 # ---------------------------------------
1050 # Messages about about the current Makefile.am.
1053 my ($channel, $msg, %opts) = @_;
1054 msg $channel, "${am_file}.am", $msg, %opts;
1057 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1058 # ---------------------------------------
1059 # Messages about about configure.ac.
1062 my ($channel, $msg, %opts) = @_;
1063 msg $channel, $configure_ac, $msg, %opts;
1066 ################################################################
1070 # Return a configure-style substitution using the indicated text.
1071 # We do this to avoid having the substitutions directly in automake.in;
1072 # when we do that they are sometimes removed and this causes confusion
1077 return '@' . $text . '@';
1080 ################################################################
1084 # &backname ($RELDIR)
1085 # --------------------
1086 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1087 # For instance 'src/foo' => '../..'.
1088 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1093 foreach (split (/\//, $file))
1095 next if $_ eq '.' || $_ eq '';
1099 or prog_error ("trying to reverse path '$file' pointing outside tree");
1106 return join ('/', @res) || '.';
1109 ################################################################
1111 # Silent rules handling functions.
1113 # verbose_var (NAME)
1114 # ------------------
1115 # The public variable stem used to implement silent rules.
1119 return 'AM_V_' . $name;
1122 # verbose_private_var (NAME)
1123 # --------------------------
1124 # The naming policy for the private variables for silent rules.
1125 sub verbose_private_var ($)
1128 return 'am__v_' . $name;
1131 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1132 # ----------------------------------------------------------
1133 # For silent rules, setup VAR and dispatcher, to expand to
1134 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
1136 sub define_verbose_var ($$;$)
1138 my ($name, $silent_val, $verbose_val) = @_;
1139 $verbose_val = '' unless defined $verbose_val;
1140 my $var = verbose_var ($name);
1141 my $pvar = verbose_private_var ($name);
1142 my $silent_var = $pvar . '_0';
1143 my $verbose_var = $pvar . '_1';
1144 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1145 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1146 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1147 # See AM_SILENT_RULES in m4/silent.m4.
1148 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1149 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1151 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1152 $silent_val, '', INTERNAL, VAR_ASIS)
1153 if (! vardef ($silent_var, TRUE));
1154 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1155 $verbose_val, '', INTERNAL, VAR_ASIS)
1156 if (! vardef ($verbose_var, TRUE));
1159 # Above should not be needed in the general automake code.
1161 # verbose_flag (NAME)
1162 # -------------------
1163 # Contents of %VERBOSE%: variable to expand before rule command.
1164 sub verbose_flag ($)
1167 return '$(' . verbose_var ($name) . ')';
1170 sub verbose_nodep_flag ($)
1173 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1178 # Contents of %SILENT%: variable to expand to '@' when silent.
1181 return verbose_flag ('at');
1184 # define_verbose_tagvar (NAME)
1185 # ----------------------------
1186 # Engage the needed silent rules machinery for tag NAME.
1187 sub define_verbose_tagvar ($)
1190 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1193 # define_verbose_texinfo
1194 # ----------------------
1195 # Engage the needed silent rules machinery for assorted texinfo commands.
1196 sub define_verbose_texinfo ()
1198 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1199 foreach my $tag (@tagvars)
1201 define_verbose_tagvar($tag);
1203 define_verbose_var('texinfo', '-q');
1204 define_verbose_var('texidevnull', '> /dev/null');
1207 # define_verbose_libtool
1208 # ----------------------
1209 # Engage the needed silent rules machinery for 'libtool --silent'.
1210 sub define_verbose_libtool ()
1212 define_verbose_var ('lt', '--silent');
1213 return verbose_flag ('lt');
1216 sub handle_silent ()
1218 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1219 # used in make recipes to determine whether we are being run in
1220 # silent mode or not. The choice of the name derives from the LISP
1221 # convention of appending the letter 'P' to denote a predicate (see
1222 # also "the '-P' convention" in the Jargon File); we do so for lack
1223 # of a better convention.
1224 define_verbose_var ('P', 'false', ':');
1225 # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
1226 define_verbose_tagvar ('GEN');
1227 define_verbose_var ('at', '@');
1231 ################################################################
1234 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1237 my $var = var ('AUTOMAKE_OPTIONS');
1240 if ($var->has_conditional_contents)
1242 msg_var ('unsupported', $var,
1243 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1245 my @options = map { { option => $_->[1], where => $_->[0] } }
1246 $var->value_as_list_recursive (cond_filter => TRUE,
1248 return 1 if process_option_list (@options);
1251 if ($strictness == GNITS)
1253 set_option ('readme-alpha', INTERNAL);
1254 set_option ('std-options', INTERNAL);
1255 set_option ('check-news', INTERNAL);
1261 # shadow_unconditionally ($varname, $where)
1262 # -----------------------------------------
1263 # Return a $(variable) that contains all possible values
1264 # $varname can take.
1265 # If the VAR wasn't defined conditionally, return $(VAR).
1266 # Otherwise we create an am__VAR_DIST variable which contains
1267 # all possible values, and return $(am__VAR_DIST).
1268 sub shadow_unconditionally ($$)
1270 my ($varname, $where) = @_;
1271 my $var = var $varname;
1272 if ($var->has_conditional_contents)
1274 $varname = "am__${varname}_DIST";
1275 my @files = uniq ($var->value_as_list_recursive);
1276 define_pretty_variable ($varname, TRUE, $where, @files);
1278 return "\$($varname)"
1281 # check_user_variables (@LIST)
1282 # ----------------------------
1283 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1285 sub check_user_variables (@)
1287 my @dont_override = @_;
1288 foreach my $flag (@dont_override)
1290 my $var = var $flag;
1293 for my $cond ($var->conditions->conds)
1295 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1297 msg_cond_var ('gnu', $cond, $flag,
1298 "'$flag' is a user variable, "
1299 . "you should not override it;\n"
1300 . "use 'AM_$flag' instead");
1307 # Call finish function for each language that was used.
1308 sub handle_languages
1310 if (! option 'no-dependencies')
1312 # Include auto-dep code. Don't include it if DEP_FILES would
1314 if (keys %extension_seen && keys %dep_files)
1316 # Set location of depcomp.
1317 &define_variable ('depcomp',
1318 "\$(SHELL) $am_config_aux_dir/depcomp",
1320 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1322 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1324 my @deplist = sort keys %dep_files;
1325 # Generate each 'include' individually. Irix 6 make will
1326 # not properly include several files resulting from a
1327 # variable expansion; generating many separate includes
1329 $output_rules .= "\n";
1330 foreach my $iter (@deplist)
1332 $output_rules .= (subst ('AMDEP_TRUE')
1333 . subst ('am__include')
1335 . subst ('am__quote')
1337 . subst ('am__quote')
1341 # Compute the set of directories to remove in distclean-depend.
1342 my @depdirs = uniq (map { dirname ($_) } @deplist);
1343 $output_rules .= &file_contents ('depend',
1344 new Automake::Location,
1345 DEPDIRS => "@depdirs");
1350 &define_variable ('depcomp', '', INTERNAL);
1351 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1356 # Is the C linker needed?
1358 foreach my $ext (sort keys %extension_seen)
1360 next unless $extension_map{$ext};
1362 my $lang = $languages{$extension_map{$ext}};
1364 my $rule_file = $lang->rule_file || 'depend2';
1366 # Get information on $LANG.
1367 my $pfx = $lang->autodep;
1368 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1370 my ($AMDEP, $FASTDEP) =
1371 (option 'no-dependencies' || $lang->autodep eq 'no')
1372 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1374 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1375 my $verbose_nodep = ($AMDEP eq 'FALSE')
1376 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1377 my $silent = silent_flag ();
1379 my %transform = ('EXT' => $ext,
1383 'FASTDEP' => $FASTDEP,
1384 '-c' => $lang->compile_flag || '',
1385 # These are not used, but they need to be defined
1386 # so &transform do not complain.
1388 'DERIVED-EXT' => 'BUG',
1390 VERBOSE => $verbose,
1391 'VERBOSE-NODEP' => $verbose_nodep,
1395 # Generate the appropriate rules for this extension.
1396 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1397 || defined $lang->compile)
1399 # Some C compilers don't support -c -o. Use it only if really
1401 my $output_flag = $lang->output_flag || '';
1404 && $lang->name eq 'c'
1405 && option 'subdir-objects');
1407 # Compute a possible derived extension.
1408 # This is not used by depend2.am.
1409 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1411 # When we output an inference rule like '.c.o:' we
1412 # have two cases to consider: either subdir-objects
1413 # is used, or it is not.
1415 # In the latter case the rule is used to build objects
1416 # in the current directory, and dependencies always
1417 # go into './$(DEPDIR)/'. We can hard-code this value.
1419 # In the former case the rule can be used to build
1420 # objects in sub-directories too. Dependencies should
1421 # go into the appropriate sub-directories, e.g.,
1422 # 'sub/$(DEPDIR)/'. The value of this directory
1423 # needs to be computed on-the-fly.
1425 # DEPBASE holds the name of this directory, plus the
1426 # basename part of the object file (extensions Po, TPo,
1427 # Plo, TPlo will be added later as appropriate). It is
1428 # either hardcoded, or a shell variable ('$depbase') that
1429 # will be computed by the rule.
1431 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1433 file_contents ($rule_file,
1434 new Automake::Location,
1438 'DERIVED-EXT' => $der_ext,
1440 DEPBASE => $depbase,
1443 SOURCEFLAG => $sourceflags{$ext} || '',
1448 COMPILE => '$(' . $lang->compiler . ')',
1449 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1451 SUBDIROBJ => !! option 'subdir-objects');
1454 # Now include code for each specially handled object with this
1456 my %seen_files = ();
1457 foreach my $file (@{$lang_specific_files{$lang->name}})
1459 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1461 # We might see a given object twice, for instance if it is
1462 # used under different conditions.
1463 next if defined $seen_files{$obj};
1464 $seen_files{$obj} = 1;
1466 prog_error ("found " . $lang->name .
1467 " in handle_languages, but compiler not defined")
1468 unless defined $lang->compile;
1470 my $obj_compile = $lang->compile;
1472 # Rewrite each occurrence of 'AM_$flag' in the compile
1473 # rule into '${derived}_$flag' if it exists.
1474 for my $flag (@{$lang->flags})
1476 my $val = "${derived}_$flag";
1477 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1481 my $libtool_tag = '';
1482 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1484 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1487 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1488 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1490 my $ltverbose = define_verbose_libtool ();
1492 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1493 . "--mode=compile $obj_compile";
1495 # We _need_ '-o' for per object rules.
1496 my $output_flag = $lang->output_flag || '-o';
1498 my $depbase = dirname ($obj);
1502 unless $depbase eq '';
1503 $depbase .= '$(DEPDIR)/' . basename ($obj);
1506 file_contents ($rule_file,
1507 new Automake::Location,
1511 DEPBASE => $depbase,
1514 SOURCEFLAG => $sourceflags{$srcext} || '',
1515 # Use $myext and not '.o' here, in case
1516 # we are actually building a new source
1517 # file -- e.g. via yacc.
1518 OBJ => "$obj$myext",
1519 OBJOBJ => "$obj.obj",
1522 VERBOSE => $verbose,
1523 'VERBOSE-NODEP' => $verbose_nodep,
1525 COMPILE => $obj_compile,
1526 LTCOMPILE => $obj_ltcompile,
1531 # The rest of the loop is done once per language.
1532 next if defined $done{$lang};
1535 # Load the language dependent Makefile chunks.
1536 my %lang = map { uc ($_) => 0 } keys %languages;
1537 $lang{uc ($lang->name)} = 1;
1538 $output_rules .= file_contents ('lang-compile',
1539 new Automake::Location,
1542 # If the source to a program consists entirely of code from a
1543 # 'pure' language, for instance C++ or Fortran 77, then we
1544 # don't need the C compiler code. However if we run into
1545 # something unusual then we do generate the C code. There are
1546 # probably corner cases here that do not work properly.
1547 # People linking Java code to Fortran code deserve pain.
1548 $needs_c ||= ! $lang->pure;
1550 define_compiler_variable ($lang)
1551 if ($lang->compile);
1553 define_linker_variable ($lang)
1556 require_variables ("$am_file.am", $lang->Name . " source seen",
1557 TRUE, @{$lang->config_vars});
1559 # Call the finisher.
1562 # Flags listed in '->flags' are user variables (per GNU Standards),
1563 # they should not be overridden in the Makefile...
1564 my @dont_override = @{$lang->flags};
1565 # ... and so is LDFLAGS.
1566 push @dont_override, 'LDFLAGS' if $lang->link;
1568 check_user_variables @dont_override;
1571 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1572 # suffix rule was learned), don't bother with the C stuff. But if
1573 # anything else creeps in, then use it.
1575 if $need_link || suffix_rules_count > 1;
1579 &define_compiler_variable ($languages{'c'})
1580 unless defined $done{$languages{'c'}};
1581 define_linker_variable ($languages{'c'});
1586 # append_exeext { PREDICATE } $MACRO
1587 # ----------------------------------
1588 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1589 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1592 # This is typically used on all filenames of *_PROGRAMS, and filenames
1593 # of TESTS that are programs.
1594 sub append_exeext (&$)
1596 my ($pred, $macro) = @_;
1598 transform_variable_recursively
1599 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1601 my ($subvar, $val, $cond, $full_cond) = @_;
1602 # Append $(EXEEXT) unless the user did it already, or it's a
1605 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1611 # Check to make sure a source defined in LIBOBJS is not explicitly
1612 # mentioned. This is a separate function (as opposed to being inlined
1613 # in handle_source_transform) because it isn't always appropriate to
1615 sub check_libobjs_sources
1617 my ($one_file, $unxformed) = @_;
1619 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1620 'dist_EXTRA_', 'nodist_EXTRA_')
1623 my $varname = $prefix . $one_file . '_SOURCES';
1624 my $var = var ($varname);
1627 @files = $var->value_as_list_recursive;
1629 elsif ($prefix eq '')
1631 @files = ($unxformed . '.c');
1638 foreach my $file (@files)
1640 err_var ($prefix . $one_file . '_SOURCES',
1641 "automatically discovered file '$file' should not" .
1642 " be explicitly mentioned")
1643 if defined $libsources{$file};
1650 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1651 # -----------------------------------------------------------------------------
1652 # Does much of the actual work for handle_source_transform.
1654 # $VAR is the name of the variable that the source filenames come from
1655 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1656 # $DERIVED is the name of resulting executable or library
1657 # $OBJ is the object extension (e.g., '.lo')
1658 # $FILE the source file to transform
1659 # %TRANSFORM contains extras arguments to pass to file_contents
1660 # when producing explicit rules
1661 # Result is a list of the names of objects
1662 # %linkers_used will be updated with any linkers needed
1663 sub handle_single_transform ($$$$$%)
1665 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1666 my @files = ($_file);
1669 # Turn sources into objects. We use a while loop like this
1670 # because we might add to @files in the loop.
1671 while (scalar @files > 0)
1675 # Configure substitutions in _SOURCES variables are errors.
1678 my $parent_msg = '';
1679 $parent_msg = "\nand is referred to from '$topparent'"
1680 if $topparent ne $var->name;
1682 "'" . $var->name . "' includes configure substitution '$_'"
1683 . $parent_msg . ";\nconfigure " .
1684 "substitutions are not allowed in _SOURCES variables");
1688 # If the source file is in a subdirectory then the '.o' is put
1689 # into the current directory, unless the subdir-objects option
1692 # Split file name into base and extension.
1693 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1695 my $directory = $1 || '';
1699 # We must generate a rule for the object if it requires its own flags.
1701 my ($linker, $object);
1703 # This records whether we've seen a derived source file (e.g.
1705 my $derived_source = 0;
1707 # This holds the 'aggregate context' of the file we are
1708 # currently examining. If the file is compiled with
1709 # per-object flags, then it will be the name of the object.
1710 # Otherwise it will be 'AM'. This is used by the target hook
1711 # language function.
1712 my $aggregate = 'AM';
1714 $extension = &derive_suffix ($extension, $obj);
1716 if ($extension_map{$extension} &&
1717 ($lang = $languages{$extension_map{$extension}}))
1719 # Found the language, so see what it says.
1720 &saw_extension ($extension);
1722 # Do we have per-executable flags for this executable?
1723 my $have_per_exec_flags = 0;
1724 my @peflags = @{$lang->flags};
1725 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1726 foreach my $flag (@peflags)
1728 if (set_seen ("${derived}_$flag"))
1730 $have_per_exec_flags = 1;
1735 # Note: computed subr call. The language rewrite function
1736 # should return one of the LANG_* constants. It could
1737 # also return a list whose first value is such a constant
1738 # and whose second value is a new source extension which
1739 # should be applied. This means this particular language
1740 # generates another source file which we must then process
1742 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1743 my ($r, $source_extension)
1744 = &$subr ($directory, $base, $extension,
1745 $obj, $have_per_exec_flags, $var);
1746 # Skip this entry if we were asked not to process it.
1747 next if $r == LANG_IGNORE;
1749 # Now extract linker and other info.
1750 $linker = $lang->linker;
1753 if (defined $source_extension)
1755 $this_obj_ext = $source_extension;
1756 $derived_source = 1;
1760 $this_obj_ext = $obj;
1762 $object = $base . $this_obj_ext;
1764 if ($have_per_exec_flags)
1766 # We have a per-executable flag in effect for this
1767 # object. In this case we rewrite the object's
1768 # name to ensure it is unique.
1770 # We choose the name 'DERIVED_OBJECT' to ensure
1771 # (1) uniqueness, and (2) continuity between
1772 # invocations. However, this will result in a
1773 # name that is too long for losing systems, in
1774 # some situations. So we provide _SHORTNAME to
1777 my $dname = $derived;
1778 my $var = var ($derived . '_SHORTNAME');
1781 # FIXME: should use the same Condition as
1782 # the _SOURCES variable. But this is really
1783 # silly overkill -- nobody should have
1784 # conditional shortnames.
1785 $dname = $var->variable_value;
1787 $object = $dname . '-' . $object;
1789 prog_error ($lang->name . " flags defined without compiler")
1790 if ! defined $lang->compile;
1795 # If rewrite said it was ok, put the object into a
1797 if ($r == LANG_SUBDIR && $directory ne '')
1799 $object = $directory . '/' . $object;
1802 # If the object file has been renamed (because per-target
1803 # flags are used) we cannot compile the file with an
1804 # inference rule: we need an explicit rule.
1806 # If the source is in a subdirectory and the object is in
1807 # the current directory, we also need an explicit rule.
1809 # If both source and object files are in a subdirectory
1810 # (this happens when the subdir-objects option is used),
1811 # then the inference will work.
1813 # The latter case deserves a historical note. When the
1814 # subdir-objects option was added on 1999-04-11 it was
1815 # thought that inferences rules would work for
1816 # subdirectory objects too. Later, on 1999-11-22,
1817 # automake was changed to output explicit rules even for
1818 # subdir-objects. Nobody remembers why, but this occurred
1819 # soon after the merge of the user-dep-gen-branch so it
1820 # might be related. In late 2003 people complained about
1821 # the size of the generated Makefile.ins (libgcj, with
1822 # 2200+ subdir objects was reported to have a 9MB
1823 # Makefile), so we now rely on inference rules again.
1824 # Maybe we'll run across the same issue as in the past,
1825 # but at least this time we can document it. However since
1826 # dependency tracking has evolved it is possible that
1827 # our old problem no longer exists.
1828 # Using inference rules for subdir-objects has been tested
1829 # with GNU make, Solaris make, Ultrix make, BSD make,
1830 # HP-UX make, and OSF1 make successfully.
1832 || ($directory ne '' && ! option 'subdir-objects')
1833 # We must also use specific rules for a nodist_ source
1834 # if its language requests it.
1835 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1837 my $obj_sans_ext = substr ($object, 0,
1838 - length ($this_obj_ext));
1840 if ($directory ne '')
1842 $full_ansi = $directory . '/' . $base . $extension;
1846 $full_ansi = $base . $extension;
1849 my @specifics = ($full_ansi, $obj_sans_ext,
1850 # Only use $this_obj_ext in the derived
1851 # source case because in the other case we
1852 # *don't* want $(OBJEXT) to appear here.
1853 ($derived_source ? $this_obj_ext : '.o'),
1856 # If we renamed the object then we want to use the
1857 # per-executable flag name. But if this is simply a
1858 # subdir build then we still want to use the AM_ flag
1862 unshift @specifics, $derived;
1863 $aggregate = $derived;
1867 unshift @specifics, 'AM';
1870 # Each item on this list is a reference to a list consisting
1871 # of four values followed by additional transform flags for
1872 # file_contents. The four values are the derived flag prefix
1873 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1874 # source file, the base name of the output file, and
1875 # the extension for the object file.
1876 push (@{$lang_specific_files{$lang->name}},
1877 [@specifics, %transform]);
1880 elsif ($extension eq $obj)
1882 # This is probably the result of a direct suffix rule.
1883 # In this case we just accept the rewrite.
1884 $object = "$base$extension";
1885 $object = "$directory/$object" if $directory ne '';
1890 # No error message here. Used to have one, but it was
1892 # FIXME: we could potentially do more processing here,
1893 # perhaps treating the new extension as though it were a
1894 # new source extension (as above). This would require
1895 # more restructuring than is appropriate right now.
1899 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1900 if (defined $object_map{$object}
1901 && $object_map{$object} ne $full);
1903 my $comp_val = (($object =~ /\.lo$/)
1904 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1905 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1906 if (defined $object_compilation_map{$comp_obj}
1907 && $object_compilation_map{$comp_obj} != 0
1908 # Only see the error once.
1909 && ($object_compilation_map{$comp_obj}
1910 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1911 && $object_compilation_map{$comp_obj} != $comp_val)
1913 err_am "object '$comp_obj' created both with libtool and without";
1915 $object_compilation_map{$comp_obj} |= $comp_val;
1919 # Let the language do some special magic if required.
1920 $lang->target_hook ($aggregate, $object, $full, %transform);
1923 if ($derived_source)
1925 prog_error ($lang->name . " has automatic dependency tracking")
1926 if $lang->autodep ne 'no';
1927 # Make sure this new source file is handled next. That will
1928 # make it appear to be at the right place in the list.
1929 unshift (@files, $object);
1930 # Distribute derived sources unless the source they are
1931 # derived from is not.
1932 &push_dist_common ($object)
1933 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1937 $linkers_used{$linker} = 1;
1939 push (@result, $object);
1941 if (! defined $object_map{$object})
1944 $object_map{$object} = $full;
1946 # If resulting object is in subdir, we need to make
1947 # sure the subdir exists at build time.
1948 if ($object =~ /\//)
1950 # FIXME: check that $DIRECTORY is somewhere in the
1953 # For Java, the way we're handling it right now, a
1954 # '..' component doesn't make sense.
1955 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1957 err_am "'$full' should not contain a '..' component";
1960 # Make sure *all* objects files in the subdirectory are
1961 # removed by "make mostlyclean". Not only this is more
1962 # efficient than listing the object files to be removed
1963 # individually (which would cause an 'rm' invocation for
1964 # each of them -- very inefficient, see bug#10697), it
1965 # would also leave stale object files in the subdirectory
1966 # whenever a source file there is removed or renamed.
1967 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
1968 if ($object =~ /\.lo$/)
1970 # If we have a libtool object, then we also must remove
1971 # any '.lo' objects in its same subdirectory.
1972 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
1973 # Remember to cleanup .libs/ in this directory.
1974 $libtool_clean_directories{$directory} = 1;
1977 push (@dep_list, require_build_directory ($directory));
1979 # If we're generating dependencies, we also want
1980 # to make sure that the appropriate subdir of the
1981 # .deps directory is created.
1983 require_build_directory ($directory . '/$(DEPDIR)'))
1984 unless option 'no-dependencies';
1987 &pretty_print_rule ($object . ':', "\t", @dep_list)
1988 if scalar @dep_list > 0;
1991 # Transform .o or $o file into .P file (for automatic
1993 # Properly flatten multiple adjacent slashes, as Solaris 10 make
1994 # might fail over them in an include statement.
1995 # Leading double slashes may be special, as per Posix, so deal
1996 # with them carefully.
1997 if ($lang && $lang->autodep ne 'no')
1999 my $depfile = $object;
2000 $depfile =~ s/\.([^.]*)$/.P$1/;
2001 $depfile =~ s/\$\(OBJEXT\)$/o/;
2002 my $maybe_extra_leading_slash = '';
2003 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2004 $depfile =~ s,/+,/,g;
2005 my $basename = basename ($depfile);
2006 # This might make $dirname empty, but we account for that below.
2007 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2008 $dirname = $maybe_extra_leading_slash . $dirname;
2009 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2018 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2019 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2020 # ---------------------------------------------------------------------------
2021 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2024 # $VAR is the name of the _SOURCES variable
2025 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2026 # it will be generated and returned).
2027 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2028 # work done to determine the linker will be).
2029 # $ONE_FILE is the canonical (transformed) name of object to build
2030 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2031 # $TOPPARENT is the _SOURCES variable being processed.
2032 # $WHERE context into which this definition is done
2033 # %TRANSFORM extra arguments to pass to file_contents when producing
2036 # Result is a pair ($LINKER, $OBJVAR):
2037 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2038 sub define_objects_from_sources ($$$$$$$%)
2040 my ($var, $objvar, $nodefine, $one_file,
2041 $obj, $topparent, $where, %transform) = @_;
2043 my $needlinker = "";
2045 transform_variable_recursively
2046 ($var, $objvar, 'am__objects', $nodefine, $where,
2047 # The transform code to run on each filename.
2049 my ($subvar, $val, $cond, $full_cond) = @_;
2050 my @trans = handle_single_transform ($subvar, $topparent,
2051 $one_file, $obj, $val,
2053 $needlinker = "true" if @trans;
2061 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2062 # -----------------------------------------------------------------------------
2063 # Handle SOURCE->OBJECT transform for one program or library.
2065 # canonical (transformed) name of target to build
2066 # actual target of object to build
2067 # object extension (i.e., either '.o' or '$o')
2068 # location of the source variable
2069 # extra arguments to pass to file_contents when producing rules
2070 # Return the name of the linker variable that must be used.
2071 # Empty return means just use 'LINK'.
2072 sub handle_source_transform ($$$$%)
2074 # one_file is canonical name. unxformed is given name. obj is
2076 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2080 # No point in continuing if _OBJECTS is defined.
2081 return if reject_var ($one_file . '_OBJECTS',
2082 $one_file . '_OBJECTS should not be defined');
2087 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2088 'dist_EXTRA_', 'nodist_EXTRA_')
2090 my $varname = $prefix . $one_file . "_SOURCES";
2091 my $var = var $varname;
2094 # We are going to define _OBJECTS variables using the prefix.
2095 # Then we glom them all together. So we can't use the null
2096 # prefix here as we need it later.
2097 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2099 # Keep track of which prefixes we saw.
2100 $used_pfx{$xpfx} = 1
2101 unless $prefix =~ /EXTRA_/;
2103 push @sources, "\$($varname)";
2104 push @dist_sources, shadow_unconditionally ($varname, $where)
2105 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2108 define_objects_from_sources ($varname,
2109 $xpfx . $one_file . '_OBJECTS',
2110 $prefix =~ /EXTRA_/,
2111 $one_file, $obj, $varname, $where,
2112 DIST_SOURCE => ($prefix !~ /^nodist_/),
2117 $linker ||= &resolve_linker (%linkers_used);
2120 my @keys = sort keys %used_pfx;
2121 if (scalar @keys == 0)
2123 # The default source for libfoo.la is libfoo.c, but for
2124 # backward compatibility we first look at libfoo_la.c,
2125 # if no default source suffix is given.
2126 my $old_default_source = "$one_file.c";
2127 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2128 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2129 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2130 if $default_source_ext =~ /[\t ]/;
2131 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2132 if ($old_default_source ne $default_source
2134 && (rule $old_default_source
2135 || rule '$(srcdir)/' . $old_default_source
2136 || rule '${srcdir}/' . $old_default_source
2137 || -f $old_default_source))
2139 my $loc = $where->clone;
2141 msg ('obsolete', $loc,
2142 "the default source for '$unxformed' has been changed "
2143 . "to '$default_source'.\n(Using '$old_default_source' for "
2144 . "backward compatibility.)");
2145 $default_source = $old_default_source;
2147 # If a rule exists to build this source with a $(srcdir)
2148 # prefix, use that prefix in our variables too. This is for
2149 # the sake of BSD Make.
2150 if (rule '$(srcdir)/' . $default_source
2151 || rule '${srcdir}/' . $default_source)
2153 $default_source = '$(srcdir)/' . $default_source;
2156 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2157 push (@sources, $default_source);
2158 push (@dist_sources, $default_source);
2162 handle_single_transform ($one_file . '_SOURCES',
2163 $one_file . '_SOURCES',
2165 $default_source, %transform);
2166 $linker ||= &resolve_linker (%linkers_used);
2167 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2171 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2172 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2175 # If we want to use 'LINK' we must make sure it is defined.
2185 # handle_lib_objects ($XNAME, $VAR)
2186 # ---------------------------------
2187 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2188 # Also, generate _DEPENDENCIES variable if appropriate.
2190 # transformed name of object being built, or empty string if no object
2191 # name of _LDADD/_LIBADD-type variable to examine
2192 # Returns 1 if LIBOBJS seen, 0 otherwise.
2193 sub handle_lib_objects
2195 my ($xname, $varname) = @_;
2197 my $var = var ($varname);
2198 prog_error "'$varname' undefined"
2200 prog_error "unexpected variable name '$varname'"
2201 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2202 my $prefix = $1 || 'AM_';
2204 my $seen_libobjs = 0;
2207 transform_variable_recursively
2208 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2210 # Transformation function, run on each filename.
2212 my ($subvar, $val, $cond, $full_cond) = @_;
2216 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2217 if ($val !~ /^-[lL]/ &&
2218 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2219 # for Libtool libraries or programs. (Actually we are a bit
2220 # lax here since this code also applies to non-libtool
2221 # libraries or programs, for which -dlopen and -dlopreopen
2222 # are pure nonsense. Diagnosing this doesn't seem very
2223 # important: the developer will quickly get complaints from
2225 $val !~ /^-dl(?:pre)?open$/ &&
2226 # Only get this error once.
2230 # FIXME: should display a stack of nested variables
2231 # as context when $var != $subvar.
2232 err_var ($var, "linker flags such as '$val' belong in "
2233 . "'${prefix}LDFLAGS'");
2237 elsif ($val !~ /^\@.*\@$/)
2239 # Assume we have a file of some sort, and output it into the
2240 # dependency variable. Autoconf substitutions are not output;
2241 # rarely is a new dependency substituted into e.g. foo_LDADD
2242 # -- but bad things (e.g. -lX11) are routinely substituted.
2243 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2244 # and handled specially below.
2247 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2249 handle_LIBOBJS ($subvar, $cond, $1);
2253 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2255 handle_ALLOCA ($subvar, $cond, $1);
2264 return $seen_libobjs;
2267 # handle_LIBOBJS_or_ALLOCA ($VAR)
2268 # -------------------------------
2269 # Definitions common to LIBOBJS and ALLOCA.
2270 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2271 sub handle_LIBOBJS_or_ALLOCA ($)
2277 # If LIBOBJS files must be built in another directory we have
2278 # to define LIBOBJDIR and ensure the files get cleaned.
2279 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2280 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2281 if ($config_libobj_dir
2282 && $relative_dir ne $config_libobj_dir)
2284 if (option 'subdir-objects')
2286 # In the top-level Makefile we do not use $(top_builddir), because
2287 # we are already there, and since the targets are built without
2288 # a $(top_builddir), it helps BSD Make to match them with
2290 $dir = "$config_libobj_dir/"
2291 if $config_libobj_dir ne '.';
2292 $dir = backname ($relative_dir) . "/$dir"
2293 if $relative_dir ne '.';
2294 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2295 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2296 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2297 # be created by libtool as a side-effect of creating LTLIBOBJS).
2298 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2302 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2303 . " 'subdir-objects' is not set");
2310 sub handle_LIBOBJS ($$$)
2312 my ($var, $cond, $lt) = @_;
2313 my $myobjext = $lt ? 'lo' : 'o';
2316 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2317 if ! keys %libsources;
2319 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2321 foreach my $iter (keys %libsources)
2323 if ($iter =~ /\.[cly]$/)
2325 &saw_extension ($&);
2326 &saw_extension ('.c');
2329 if ($iter =~ /\.h$/)
2331 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2333 elsif ($iter ne 'alloca.c')
2335 my $rewrite = $iter;
2336 $rewrite =~ s/\.c$/.P$myobjext/;
2337 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2338 $rewrite = "^" . quotemeta ($iter) . "\$";
2339 # Only require the file if it is not a built source.
2340 my $bs = var ('BUILT_SOURCES');
2341 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2343 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2349 sub handle_ALLOCA ($$$)
2351 my ($var, $cond, $lt) = @_;
2352 my $myobjext = $lt ? 'lo' : 'o';
2354 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2356 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2357 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2358 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2359 &saw_extension ('.c');
2362 # Canonicalize the input parameter
2366 $string =~ tr/A-Za-z0-9_\@/_/c;
2370 # Canonicalize a name, and check to make sure the non-canonical name
2371 # is never used. Returns canonical name. Arguments are name and a
2372 # list of suffixes to check for.
2373 sub check_canonical_spelling
2375 my ($name, @suffixes) = @_;
2377 my $xname = &canonicalize ($name);
2378 if ($xname ne $name)
2380 foreach my $xt (@suffixes)
2382 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2392 # Set up the compile suite.
2393 sub handle_compile ()
2395 return if ! $must_handle_compiled_objects;
2398 my $default_includes = '';
2399 if (! option 'nostdinc')
2401 my @incs = ('-I.', subst ('am__isrc'));
2403 my $var = var 'CONFIG_HEADER';
2406 foreach my $hdr (split (' ', $var->variable_value))
2408 push @incs, '-I' . dirname ($hdr);
2411 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2412 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2413 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2414 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2415 # to just put @am__isrc@ right after '-I.', without a space.
2416 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2419 my (@mostly_rms, @dist_rms);
2420 foreach my $item (sort keys %compile_clean_files)
2422 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2424 push (@mostly_rms, "\t-rm -f $item");
2426 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2428 push (@dist_rms, "\t-rm -f $item");
2432 prog_error 'invalid entry in %compile_clean_files';
2436 my ($coms, $vars, $rules) =
2437 &file_contents_internal (1, "$libdir/am/compile.am",
2438 new Automake::Location,
2439 ('DEFAULT_INCLUDES' => $default_includes,
2440 'MOSTLYRMS' => join ("\n", @mostly_rms),
2441 'DISTRMS' => join ("\n", @dist_rms)));
2442 $output_vars .= $vars;
2443 $output_rules .= "$coms$rules";
2448 # Handle libtool rules.
2451 return unless var ('LIBTOOL');
2453 # Libtool requires some files, but only at top level.
2454 # (Starting with Libtool 2.0 we do not have to bother. These
2455 # requirements are done with AC_REQUIRE_AUX_FILE.)
2456 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2457 if $relative_dir eq '.' && ! $libtool_new_api;
2460 foreach my $item (sort keys %libtool_clean_directories)
2462 my $dir = ($item eq '.') ? '' : "$item/";
2463 # .libs is for Unix, _libs for DOS.
2464 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2467 check_user_variables 'LIBTOOLFLAGS';
2469 # Output the libtool compilation rules.
2470 $output_rules .= &file_contents ('libtool',
2471 new Automake::Location,
2472 LTRMS => join ("\n", @libtool_rms));
2475 # handle_programs ()
2476 # ------------------
2477 # Handle C programs.
2480 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2481 'bin', 'sbin', 'libexec', 'pkglibexec',
2483 return if ! @proglist;
2484 $must_handle_compiled_objects = 1;
2486 my $seen_global_libobjs =
2487 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2489 foreach my $pair (@proglist)
2491 my ($where, $one_file) = @$pair;
2493 my $seen_libobjs = 0;
2494 my $obj = '.$(OBJEXT)';
2496 $known_programs{$one_file} = $where;
2498 # Canonicalize names and check for misspellings.
2499 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2500 '_SOURCES', '_OBJECTS',
2503 $where->push_context ("while processing program '$one_file'");
2504 $where->set (INTERNAL->get);
2506 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2507 NONLIBTOOL => 1, LIBTOOL => 0);
2509 if (var ($xname . "_LDADD"))
2511 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2515 # User didn't define prog_LDADD override. So do it.
2516 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2518 # This does a bit too much work. But we need it to
2519 # generate _DEPENDENCIES when appropriate.
2522 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2526 reject_var ($xname . '_LIBADD',
2527 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2529 set_seen ($xname . '_DEPENDENCIES');
2530 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2531 set_seen ($xname . '_LDFLAGS');
2533 # Determine program to use for link.
2534 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2535 $vlink = verbose_flag ($vlink || 'GEN');
2537 # If the resulting program lies into a subdirectory,
2538 # make sure this directory will exist.
2539 my $dirstamp = require_build_directory_maybe ($one_file);
2541 $libtool_clean_directories{dirname ($one_file)} = 1;
2543 $output_rules .= &file_contents ('program',
2545 PROGRAM => $one_file,
2549 DIRSTAMP => $dirstamp,
2550 EXEEXT => '$(EXEEXT)');
2552 if ($seen_libobjs || $seen_global_libobjs)
2554 if (var ($xname . '_LDADD'))
2556 &check_libobjs_sources ($xname, $xname . '_LDADD');
2558 elsif (var ('LDADD'))
2560 &check_libobjs_sources ($xname, 'LDADD');
2567 # handle_libraries ()
2568 # -------------------
2570 sub handle_libraries
2572 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2573 'lib', 'pkglib', 'noinst', 'check');
2574 return if ! @liblist;
2575 $must_handle_compiled_objects = 1;
2577 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2582 my $var = rvar ($prefix[0] . '_LIBRARIES');
2583 $var->requires_variables ('library used', 'RANLIB');
2586 &define_variable ('AR', 'ar', INTERNAL);
2587 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2588 &define_verbose_tagvar ('AR');
2590 foreach my $pair (@liblist)
2592 my ($where, $onelib) = @$pair;
2594 my $seen_libobjs = 0;
2595 # Check that the library fits the standard naming convention.
2596 my $bn = basename ($onelib);
2597 if ($bn !~ /^lib.*\.a$/)
2599 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2600 my $suggestion = dirname ($onelib) . "/$bn";
2601 $suggestion =~ s|^\./||g;
2602 msg ('error-gnu/warn', $where,
2603 "'$onelib' is not a standard library name\n"
2604 . "did you mean '$suggestion'?")
2607 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2609 $where->push_context ("while processing library '$onelib'");
2610 $where->set (INTERNAL->get);
2612 my $obj = '.$(OBJEXT)';
2614 # Canonicalize names and check for misspellings.
2615 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2616 '_OBJECTS', '_DEPENDENCIES',
2619 if (! var ($xlib . '_AR'))
2621 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2624 # Generate support for conditional object inclusion in
2626 if (var ($xlib . '_LIBADD'))
2628 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2635 &define_variable ($xlib . "_LIBADD", '', $where);
2638 reject_var ($xlib . '_LDADD',
2639 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2641 # Make sure we at look at this.
2642 set_seen ($xlib . '_DEPENDENCIES');
2643 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2645 &handle_source_transform ($xlib, $onelib, $obj, $where,
2646 NONLIBTOOL => 1, LIBTOOL => 0);
2648 # If the resulting library lies into a subdirectory,
2649 # make sure this directory will exist.
2650 my $dirstamp = require_build_directory_maybe ($onelib);
2651 my $verbose = verbose_flag ('AR');
2652 my $silent = silent_flag ();
2654 $output_rules .= &file_contents ('library',
2656 VERBOSE => $verbose,
2660 DIRSTAMP => $dirstamp);
2664 if (var ($xlib . '_LIBADD'))
2666 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2672 msg ('extra-portability', $where,
2673 "'$onelib': linking libraries using a non-POSIX\n"
2674 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2680 # handle_ltlibraries ()
2681 # ---------------------
2682 # Handle shared libraries.
2683 sub handle_ltlibraries
2685 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2686 'noinst', 'lib', 'pkglib', 'check');
2687 return if ! @liblist;
2688 $must_handle_compiled_objects = 1;
2690 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2695 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2696 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2700 my %instsubdirs = ();
2702 my %liblocations = (); # Location (in Makefile.am) of each library.
2704 foreach my $key (@prefix)
2706 # Get the installation directory of each library.
2708 my $strip_subdir = 1;
2709 if ($dir =~ /^nobase_/)
2711 $dir =~ s/^nobase_//;
2714 my $var = rvar ($key . '_LTLIBRARIES');
2716 # We reject libraries which are installed in several places
2717 # in the same condition, because we can only specify one
2719 $var->traverse_recursively
2722 my ($var, $val, $cond, $full_cond) = @_;
2723 my $hcond = $full_cond->human;
2724 my $where = $var->rdef ($cond)->location;
2726 $ldir = '/' . dirname ($val)
2727 if (!$strip_subdir);
2728 # A library cannot be installed in different directories
2729 # in overlapping conditions.
2730 if (exists $instconds{$val})
2733 $instconds{$val}->ambiguous_p ($val, $full_cond);
2737 error ($where, $msg, partial => 1);
2738 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2739 $dirtxt = "built for '$dir'"
2740 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2742 $full_cond->true ? "" : " in condition $hcond";
2744 error ($where, "'$val' should be $dirtxt$dircond ...",
2747 my $hacond = $acond->human;
2748 my $adir = $instdirs{$val}{$acond};
2749 my $adirtxt = "installed in '$adir'";
2750 $adirtxt = "built for '$adir'"
2751 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2752 || $adir eq 'check');
2753 my $adircond = $acond->true ? "" : " in condition $hacond";
2755 my $onlyone = ($dir ne $adir) ?
2756 ("\nLibtool libraries can be built for only one "
2757 . "destination") : "";
2759 error ($liblocations{$val}{$acond},
2760 "... and should also be $adirtxt$adircond.$onlyone");
2766 $instconds{$val} = new Automake::DisjConditions;
2768 $instdirs{$val}{$full_cond} = $dir;
2769 $instsubdirs{$val}{$full_cond} = $ldir;
2770 $liblocations{$val}{$full_cond} = $where;
2771 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2777 skip_ac_subst => 1);
2780 foreach my $pair (@liblist)
2782 my ($where, $onelib) = @$pair;
2784 my $seen_libobjs = 0;
2787 # Canonicalize names and check for misspellings.
2788 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2789 '_SOURCES', '_OBJECTS',
2792 # Check that the library fits the standard naming convention.
2793 my $libname_rx = '^lib.*\.la';
2794 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2795 my $ldvar2 = var ('LDFLAGS');
2796 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2797 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2799 # Relax name checking for libtool modules.
2800 $libname_rx = '\.la';
2803 my $bn = basename ($onelib);
2804 if ($bn !~ /$libname_rx$/)
2806 my $type = 'library';
2807 if ($libname_rx eq '\.la')
2809 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2814 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2816 my $suggestion = dirname ($onelib) . "/$bn";
2817 $suggestion =~ s|^\./||g;
2818 msg ('error-gnu/warn', $where,
2819 "'$onelib' is not a standard libtool $type name\n"
2820 . "did you mean '$suggestion'?")
2823 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2825 $where->push_context ("while processing Libtool library '$onelib'");
2826 $where->set (INTERNAL->get);
2828 # Make sure we look at these.
2829 set_seen ($xlib . '_LDFLAGS');
2830 set_seen ($xlib . '_DEPENDENCIES');
2831 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2833 # Generate support for conditional object inclusion in
2835 if (var ($xlib . '_LIBADD'))
2837 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2844 &define_variable ($xlib . "_LIBADD", '', $where);
2847 reject_var ("${xlib}_LDADD",
2848 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2851 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2852 NONLIBTOOL => 0, LIBTOOL => 1);
2854 # Determine program to use for link.
2855 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2856 $vlink = verbose_flag ($vlink || 'GEN');
2858 my $rpathvar = "am_${xlib}_rpath";
2859 my $rpath = "\$($rpathvar)";
2860 foreach my $rcond ($instconds{$onelib}->conds)
2863 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2864 || $instdirs{$onelib}{$rcond} eq 'noinst'
2865 || $instdirs{$onelib}{$rcond} eq 'check')
2867 # It's an EXTRA_ library, so we can't specify -rpath,
2868 # because we don't know where the library will end up.
2869 # The user probably knows, but generally speaking automake
2870 # doesn't -- and in fact configure could decide
2871 # dynamically between two different locations.
2876 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2877 $val .= $instsubdirs{$onelib}{$rcond}
2878 if defined $instsubdirs{$onelib}{$rcond};
2882 # If $rcond is true there is only one condition and
2883 # there is no point defining an helper variable.
2888 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2892 # If the resulting library lies into a subdirectory,
2893 # make sure this directory will exist.
2894 my $dirstamp = require_build_directory_maybe ($onelib);
2896 # Remember to cleanup .libs/ in this directory.
2897 my $dirname = dirname $onelib;
2898 $libtool_clean_directories{$dirname} = 1;
2900 $output_rules .= &file_contents ('ltlibrary',
2902 LTLIBRARY => $onelib,
2903 XLTLIBRARY => $xlib,
2907 DIRSTAMP => $dirstamp);
2910 if (var ($xlib . '_LIBADD'))
2912 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2918 msg ('extra-portability', $where,
2919 "'$onelib': linking libtool libraries using a non-POSIX\n"
2920 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2925 # See if any _SOURCES variable were misspelled.
2928 # It is ok if the user sets this particular variable.
2929 set_seen 'AM_LDFLAGS';
2931 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2933 foreach my $var (variables $primary)
2935 my $varname = $var->name;
2936 # A configure variable is always legitimate.
2937 next if exists $configure_vars{$varname};
2939 for my $cond ($var->conditions->conds)
2941 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2942 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2943 . " program or\nlibrary has '$1' as canonical name"
2944 . " (possible typo)")
2945 unless $var->rdef ($cond)->seen;
2955 # NOTE we no longer automatically clean SCRIPTS, because it is
2956 # useful to sometimes distribute scripts verbatim. This happens
2957 # e.g. in Automake itself.
2958 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2959 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2966 ## ------------------------ ##
2967 ## Handling Texinfo files. ##
2968 ## ------------------------ ##
2970 # ($OUTFILE, $VFILE)
2971 # &scan_texinfo_file ($FILENAME)
2972 # ------------------------------
2973 # $OUTFILE - name of the info file produced by $FILENAME.
2974 # $VFILE - name of the version.texi file used (undef if none).
2975 sub scan_texinfo_file ($)
2977 my ($filename) = @_;
2979 my $texi = new Automake::XFile "< $filename";
2980 verb "reading $filename";
2982 my ($outfile, $vfile);
2983 while ($_ = $texi->getline)
2985 if (/^\@setfilename +(\S+)/)
2987 # Honor only the first @setfilename. (It's possible to have
2988 # more occurrences later if the manual shows examples of how
2989 # to use @setfilename...)
2993 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2995 error ("$filename:$.",
2996 "output '$outfile' has unrecognized extension");
3000 # A "version.texi" file is actually any file whose name matches
3002 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3010 err_am "'$filename' missing \@setfilename";
3014 my $infobase = basename ($filename);
3015 $infobase =~ s/\.te?xi(nfo)?$//;
3016 return ($outfile, $vfile);
3020 # ($DIRSTAMP, @CLEAN_FILES)
3021 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3022 # ------------------------------------------------------------------
3023 # SOURCE - the source Texinfo file
3024 # DEST - the destination Info file
3025 # INSRC - whether DEST should be built in the source tree
3026 # DEPENDENCIES - known dependencies
3027 sub output_texinfo_build_rules ($$$@)
3029 my ($source, $dest, $insrc, @deps) = @_;
3031 # Split 'a.texi' into 'a' and '.texi'.
3032 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3033 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3038 # We can output two kinds of rules: the "generic" rules use Make
3039 # suffix rules and are appropriate when $source and $dest do not lie
3040 # in a sub-directory; the "specific" rules are needed in the other
3043 # The former are output only once (this is not really apparent here,
3044 # but just remember that some logic deeper in Automake will not
3045 # output the same rule twice); while the later need to be output for
3046 # each Texinfo source.
3049 my $sdir = dirname $source;
3050 if ($sdir eq '.' && dirname ($dest) eq '.')
3053 $makeinfoflags = '-I $(srcdir)';
3058 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3061 # A directory can contain two kinds of info files: some built in the
3062 # source tree, and some built in the build tree. The rules are
3063 # different in each case. However we cannot output two different
3064 # set of generic rules. Because in-source builds are more usual, we
3065 # use generic rules in this case and fall back to "specific" rules
3066 # for build-dir builds. (It should not be a problem to invert this
3068 $generic = 0 unless $insrc;
3070 # We cannot use a suffix rule to build info files with an empty
3071 # extension. Otherwise we would output a single suffix inference
3072 # rule, with separate dependencies, as in
3076 # foo.info: foo.texi
3078 # which confuse Solaris make. (See the Autoconf manual for
3079 # details.) Therefore we use a specific rule in this case. This
3080 # applies to info files only (dvi and pdf files always have an
3082 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3084 # If the resulting file lie into a subdirectory,
3085 # make sure this directory will exist.
3086 my $dirstamp = require_build_directory_maybe ($dest);
3088 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3090 $output_rules .= file_contents ('texibuild',
3091 new Automake::Location,
3092 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3093 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3094 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3096 DEST_PREFIX => $dpfx,
3097 DEST_INFO_PREFIX => $dipfx,
3098 DEST_SUFFIX => $dsfx,
3099 DIRSTAMP => $dirstamp,
3100 GENERIC => $generic,
3101 GENERIC_INFO => $generic_info,
3103 MAKEINFOFLAGS => $makeinfoflags,
3104 SILENT => silent_flag(),
3107 SOURCE_INFO => ($generic_info
3109 SOURCE_REAL => $source,
3110 SOURCE_SUFFIX => $ssfx,
3111 TEXIQUIET => verbose_flag('texinfo'),
3112 TEXIDEVNULL => verbose_flag('texidevnull'),
3114 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3118 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3119 # handle_texinfo_helper ($info_texinfos)
3120 # --------------------------------------
3121 # Handle all Texinfo source; helper for handle_texinfo.
3122 sub handle_texinfo_helper ($)
3124 my ($info_texinfos) = @_;
3125 my (@infobase, @info_deps_list, @texi_deps);
3128 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3130 # Build a regex matching user-cleaned files.
3131 my $d = var 'DISTCLEANFILES';
3132 my $c = var 'CLEANFILES';
3134 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3135 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3136 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3137 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3140 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3142 my $infobase = $texi;
3143 $infobase =~ s/\.(txi|texinfo|texi)$//;
3145 if ($infobase eq $texi)
3147 # FIXME: report line number.
3148 err_am "texinfo file '$texi' has unrecognized extension";
3152 push @infobase, $infobase;
3154 # If 'version.texi' is referenced by input file, then include
3155 # automatic versioning capability.
3156 my ($out_file, $vtexi) =
3157 scan_texinfo_file ("$relative_dir/$texi")
3159 # Directory of auxiliary files and build by-products used by texi2dvi
3161 push @mostly_cleans, "$infobase.t2d";
3162 push @mostly_cleans, "$infobase.t2p";
3164 # If the Texinfo source is in a subdirectory, create the
3165 # resulting info in this subdirectory. If it is in the current
3166 # directory, try hard to not prefix "./" because it breaks the
3168 my $outdir = dirname ($texi) . '/';
3169 $outdir = "" if $outdir eq './';
3170 $out_file = $outdir . $out_file;
3172 # Until Automake 1.6.3, .info files were built in the
3173 # source tree. This was an obstacle to the support of
3174 # non-distributed .info files, and non-distributed .texi
3177 # * Non-distributed .texi files is important in some packages
3178 # where .texi files are built at make time, probably using
3179 # other binaries built in the package itself, maybe using
3180 # tools or information found on the build host. Because
3181 # these files are not distributed they are always rebuilt
3182 # at make time; they should therefore not lie in the source
3183 # directory. One plan was to support this using
3184 # nodist_info_TEXINFOS or something similar. (Doing this
3185 # requires some sanity checks. For instance Automake should
3187 # dist_info_TEXINFOS = foo.texi
3188 # nodist_foo_TEXINFOS = included.texi
3189 # because a distributed file should never depend on a
3190 # non-distributed file.)
3192 # * If .texi files are not distributed, then .info files should
3193 # not be distributed either. There are also cases where one
3194 # wants to distribute .texi files, but does not want to
3195 # distribute the .info files. For instance the Texinfo package
3196 # distributes the tool used to build these files; it would
3197 # be a waste of space to distribute them. It's not clear
3198 # which syntax we should use to indicate that .info files should
3199 # not be distributed. Akim Demaille suggested that eventually
3200 # we switch to a new syntax:
3201 # | Maybe we should take some inspiration from what's already
3202 # | done in the rest of Automake. Maybe there is too much
3203 # | syntactic sugar here, and you want
3204 # | nodist_INFO = bar.info
3205 # | dist_bar_info_SOURCES = bar.texi
3206 # | bar_texi_DEPENDENCIES = foo.texi
3207 # | with a bit of magic to have bar.info represent the whole
3208 # | bar*info set. That's a lot more verbose that the current
3209 # | situation, but it is # not new, hence the user has less
3212 # | But there is still too much room for meaningless specs:
3213 # | nodist_INFO = bar.info
3214 # | dist_bar_info_SOURCES = bar.texi
3215 # | dist_PS = bar.ps something-written-by-hand.ps
3216 # | nodist_bar_ps_SOURCES = bar.texi
3217 # | bar_texi_DEPENDENCIES = foo.texi
3218 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3220 # Back to the point, it should be clear that in order to support
3221 # non-distributed .info files, we need to build them in the
3222 # build tree, not in the source tree (non-distributed .texi
3223 # files are less of a problem, because we do not output build
3224 # rules for them). In Automake 1.7 .info build rules have been
3225 # largely cleaned up so that .info files get always build in the
3226 # build tree, even when distributed. The idea was that
3227 # (1) if during a VPATH build the .info file was found to be
3228 # absent or out-of-date (in the source tree or in the
3229 # build tree), Make would rebuild it in the build tree.
3230 # If an up-to-date source-tree of the .info file existed,
3231 # make would not rebuild it in the build tree.
3232 # (2) having two copies of .info files, one in the source tree
3233 # and one (newer) in the build tree is not a problem
3234 # because 'make dist' always pick files in the build tree
3236 # However it turned out the be a bad idea for several reasons:
3237 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3238 # like GNU Make on point (1) above. These implementations
3239 # of Make would always rebuild .info files in the build
3240 # tree, even if such files were up to date in the source
3241 # tree. Consequently, it was impossible to perform a VPATH
3242 # build of a package containing Texinfo files using these
3243 # Make implementations.
3244 # (Refer to the Autoconf Manual, section "Limitation of
3245 # Make", paragraph "VPATH", item "target lookup", for
3246 # an account of the differences between these
3248 # * The GNU Coding Standards require these files to be built
3249 # in the source-tree (when they are distributed, that is).
3250 # * Keeping a fresher copy of distributed files in the
3251 # build tree can be annoying during development because
3252 # - if the files is kept under CVS, you really want it
3253 # to be updated in the source tree
3254 # - it is confusing that 'make distclean' does not erase
3255 # all files in the build tree.
3257 # Consequently, starting with Automake 1.8, .info files are
3258 # built in the source tree again. Because we still plan to
3259 # support non-distributed .info files at some point, we
3260 # have a single variable ($INSRC) that controls whether
3261 # the current .info file must be built in the source tree
3262 # or in the build tree. Actually this variable is switched
3263 # off for .info files that appear to be cleaned; this is
3264 # for backward compatibility with package such as Texinfo,
3265 # which do things like
3266 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3267 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3268 # # Do not create info files for distribution.
3270 # in order not to distribute .info files.
3271 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3273 my $soutdir = '$(srcdir)/' . $outdir;
3274 $outdir = $soutdir if $insrc;
3276 # If user specified file_TEXINFOS, then use that as explicit
3279 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3281 my $canonical = canonicalize ($infobase);
3282 if (var ($canonical . "_TEXINFOS"))
3284 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3285 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3288 my ($dirstamp, @cfiles) =
3289 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3290 push (@texi_cleans, @cfiles);
3292 push (@info_deps_list, $out_file);
3294 # If a vers*.texi file is needed, emit the rule.
3297 err_am ("'$vtexi', included in '$texi', "
3298 . "also included in '$versions{$vtexi}'")
3299 if defined $versions{$vtexi};
3300 $versions{$vtexi} = $texi;
3302 # We number the stamp-vti files. This is doable since the
3303 # actual names don't matter much. We only number starting
3304 # with the second one, so that the common case looks nice.
3305 my $vti = ($done ? $done : 'vti');
3308 # This is ugly, but it is our historical practice.
3309 if ($config_aux_dir_set_in_configure_ac)
3311 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3316 require_file_with_macro (TRUE, 'info_TEXINFOS',
3317 FOREIGN, 'mdate-sh');
3321 if ($config_aux_dir_set_in_configure_ac)
3323 $conf_dir = "$am_config_aux_dir/";
3327 $conf_dir = '$(srcdir)/';
3329 $output_rules .= file_contents ('texi-vers',
3330 new Automake::Location,
3333 STAMPVTI => "${soutdir}stamp-$vti",
3334 VTEXI => "$soutdir$vtexi",
3336 DIRSTAMP => $dirstamp);
3340 # Handle location of texinfo.tex.
3341 my $need_texi_file = 0;
3343 if (var ('TEXINFO_TEX'))
3345 # The user defined TEXINFO_TEX so assume he knows what he is
3347 $texinfodir = ('$(srcdir)/'
3348 . dirname (variable_value ('TEXINFO_TEX')));
3350 elsif ($config_aux_dir_set_in_configure_ac)
3352 $texinfodir = $am_config_aux_dir;
3353 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3354 $need_texi_file = 2; # so that we require_conf_file later
3358 $texinfodir = '$(srcdir)';
3359 $need_texi_file = 1;
3361 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3363 push (@dist_targets, 'dist-info');
3365 if (! option 'no-installinfo')
3367 # Make sure documentation is made and installed first. Use
3368 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3369 # get run twice during "make all".
3370 unshift (@all, '$(INFO_DEPS)');
3373 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3374 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3375 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3376 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3378 # This next isn't strictly needed now -- the places that look here
3379 # could easily be changed to look in info_TEXINFOS. But this is
3380 # probably better, in case noinst_TEXINFOS is ever supported.
3381 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3383 # Do some error checking. Note that this file is not required
3384 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3386 if ($need_texi_file && ! option 'no-texinfo.tex')
3388 if ($need_texi_file > 1)
3390 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3395 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3400 return (makefile_wrap ("", "\t ", @mostly_cleans),
3401 makefile_wrap ("", "\t ", @texi_cleans),
3402 makefile_wrap ("", "\t ", @maint_cleans));
3408 # Handle all Texinfo source.
3409 sub handle_texinfo ()
3411 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3412 # FIXME: I think this is an obsolete future feature name.
3413 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3415 my $info_texinfos = var ('info_TEXINFOS');
3416 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3419 define_verbose_texinfo;
3420 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3426 $output_rules .= file_contents ('texinfos',
3427 new Automake::Location,
3428 AM_V_DVIPS => verbose_flag('DVIPS'),
3429 MOSTLYCLEAN => $mostlyclean,
3430 TEXICLEAN => $clean,
3431 MAINTCLEAN => $maintclean,
3432 'LOCAL-TEXIS' => !!$info_texinfos,
3433 TEXIQUIET => verbose_flag('texinfo'));
3437 # Handle any man pages.
3438 sub handle_man_pages
3440 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3442 # Find all the sections in use. We do this by first looking for
3443 # "standard" sections, and then looking for any additional
3444 # sections used in man_MANS.
3445 my (%sections, %notrans_sections, %trans_sections,
3446 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3447 # We handle nodist_ for uniformity. man pages aren't distributed
3448 # by default so it isn't actually very important.
3449 foreach my $npfx ('', 'notrans_')
3451 foreach my $pfx ('', 'dist_', 'nodist_')
3453 # Add more sections as needed.
3454 foreach my $section ('0'..'9', 'n', 'l')
3456 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3459 $sections{$section} = 1;
3460 $varname = '$(' . $varname . ')';
3461 if ($npfx eq 'notrans_')
3463 $notrans_sections{$section} = 1;
3464 $notrans_sect_vars{$varname} = 1;
3468 $trans_sections{$section} = 1;
3469 $trans_sect_vars{$varname} = 1;
3472 &push_dist_common ($varname)
3477 my $varname = $npfx . $pfx . 'man_MANS';
3478 my $var = var ($varname);
3481 foreach ($var->value_as_list_recursive)
3483 # A page like 'foo.1c' goes into man1dir.
3484 if (/\.([0-9a-z])([a-z]*)$/)
3487 if ($npfx eq 'notrans_')
3489 $notrans_sections{$1} = 1;
3493 $trans_sections{$1} = 1;
3498 $varname = '$(' . $varname . ')';
3499 if ($npfx eq 'notrans_')
3501 $notrans_vars{$varname} = 1;
3505 $trans_vars{$varname} = 1;
3507 &push_dist_common ($varname)
3513 return unless %sections;
3517 # Build section independent variables.
3518 my $have_notrans = %notrans_vars;
3519 my @notrans_list = sort keys %notrans_vars;
3520 my $have_trans = %trans_vars;
3521 my @trans_list = sort keys %trans_vars;
3523 # Now for each section, generate an install and uninstall rule.
3524 # Sort sections so output is deterministic.
3525 foreach my $section (sort keys %sections)
3527 # Build section dependent variables.
3528 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3529 my $trans_mans = $have_trans || exists $trans_sections{$section};
3530 my (%notrans_this_sect, %trans_this_sect);
3531 my $expr = 'man' . $section . '_MANS';
3532 foreach my $varname (keys %notrans_sect_vars)
3534 if ($varname =~ /$expr/)
3536 $notrans_this_sect{$varname} = 1;
3539 foreach my $varname (keys %trans_sect_vars)
3541 if ($varname =~ /$expr/)
3543 $trans_this_sect{$varname} = 1;
3546 my @notrans_sect_list = sort keys %notrans_this_sect;
3547 my @trans_sect_list = sort keys %trans_this_sect;
3548 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3549 keys %notrans_this_sect, keys %trans_this_sect);
3550 my @deps = sort @unsorted_deps;
3551 $output_rules .= &file_contents ('mans',
3552 new Automake::Location,
3553 SECTION => $section,
3555 NOTRANS_MANS => $notrans_mans,
3556 NOTRANS_SECT_LIST => "@notrans_sect_list",
3557 HAVE_NOTRANS => $have_notrans,
3558 NOTRANS_LIST => "@notrans_list",
3559 TRANS_MANS => $trans_mans,
3560 TRANS_SECT_LIST => "@trans_sect_list",
3561 HAVE_TRANS => $have_trans,
3562 TRANS_LIST => "@trans_list");
3565 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3566 keys %notrans_sect_vars, keys %trans_sect_vars);
3567 my @mans = sort @unsorted_deps;
3568 $output_vars .= file_contents ('mans-vars',
3569 new Automake::Location,
3572 push (@all, '$(MANS)')
3573 unless option 'no-installman';
3576 # Handle DATA variables.
3579 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3580 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3581 'ps', 'sysconf', 'sharedstate', 'localstate',
3582 'pkgdata', 'lisp', 'noinst', 'check');
3589 foreach my $spec (@config_headers)
3591 my ($out, @ins) = split_config_file_spec ($spec);
3592 foreach my $in (@ins)
3594 # If the config header source is in this directory,
3596 push @config, basename ($in)
3597 if $relative_dir eq dirname ($in);
3601 define_variable ('am__tagged_files',
3602 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3603 . "@config", INTERNAL);
3605 if (rvar('am__tagged_files')->value_as_list_recursive
3606 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3608 $output_rules .= &file_contents ('tags', new Automake::Location);
3609 set_seen 'TAGS_DEPENDENCIES';
3613 reject_var ('TAGS_DEPENDENCIES',
3614 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3615 . " without\nsources or 'ETAGS_ARGS'");
3616 # Every Makefile must define some sort of TAGS rule.
3617 # Otherwise, it would be possible for a top-level "make TAGS"
3618 # to fail because some subdirectory failed. Ditto ctags and
3622 "ctags CTAGS:\n\n" .
3623 "cscope cscopelist:\n\n";
3628 # user_phony_rule ($NAME)
3629 # -----------------------
3630 # Return false if rule $NAME does not exist. Otherwise,
3631 # declare it as phony, complete its definition (in case it is
3632 # conditional), and return its Automake::Rule instance.
3633 sub user_phony_rule ($)
3636 my $rule = rule $name;
3639 depend ('.PHONY', $name);
3640 # Define $NAME in all condition where it is not already defined,
3641 # so that it is always OK to depend on $NAME.
3642 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3644 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3646 $output_rules .= $c->subst_string . "$name:\n";
3655 # Handle 'dist' target.
3658 # Substitutions for distdir.am
3661 # Define DIST_SUBDIRS. This must always be done, regardless of the
3662 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3663 my $subdirs = var ('SUBDIRS');
3666 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3667 # to all possible directories, and use it. If DIST_SUBDIRS is
3668 # defined, just use it.
3670 # Note that we check DIST_SUBDIRS first on purpose, so that
3671 # we don't call has_conditional_contents for now reason.
3672 # (In the past one project used so many conditional subdirectories
3673 # that calling has_conditional_contents on SUBDIRS caused
3674 # automake to grow to 150Mb -- this should not happen with
3675 # the current implementation of has_conditional_contents,
3676 # but it's more efficient to avoid the call anyway.)
3677 if (var ('DIST_SUBDIRS'))
3680 elsif ($subdirs->has_conditional_contents)
3682 define_pretty_variable
3683 ('DIST_SUBDIRS', TRUE, INTERNAL,
3684 uniq ($subdirs->value_as_list_recursive));
3688 # We always define this because that is what 'distclean'
3690 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3695 # The remaining definitions are only required when a dist target is used.
3696 return if option 'no-dist';
3698 # At least one of the archive formats must be enabled.
3699 if ($relative_dir eq '.')
3701 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3702 $archive_defined ||=
3703 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3704 error (option 'no-dist-gzip',
3705 "no-dist-gzip specified but no dist-* specified,\n"
3706 . "at least one archive format must be enabled")
3707 unless $archive_defined;
3710 # Look for common files that should be included in distribution.
3711 # If the aux dir is set, and it does not have a Makefile.am, then
3712 # we check for these files there as well.
3714 if ($relative_dir eq '.'
3715 && $config_aux_dir_set_in_configure_ac)
3717 if (! &is_make_dir ($config_aux_dir))
3722 foreach my $cfile (@common_files)
3724 if (dir_has_case_matching_file ($relative_dir, $cfile)
3725 # The file might be absent, but if it can be built it's ok.
3728 &push_dist_common ($cfile);
3731 # Don't use 'elsif' here because a file might meaningfully
3732 # appear in both directories.
3733 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3735 &push_dist_common ("$config_aux_dir/$cfile")
3739 # We might copy elements from $configure_dist_common to
3740 # %dist_common if we think we need to. If the file appears in our
3741 # directory, we would have discovered it already, so we don't
3742 # check that. But if the file is in a subdir without a Makefile,
3743 # we want to distribute it here if we are doing '.'. Ugly!
3744 # Also, in some corner cases, it's possible that the following code
3745 # will cause the same file to appear in the $(DIST_COMMON) variables
3746 # of two distinct Makefiles; but this is not a problem, since the
3747 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3748 # file being distributed multiple times.
3749 # See also automake bug#9651.
3750 if ($relative_dir eq '.')
3752 foreach my $file (split (' ' , $configure_dist_common))
3754 my $dir = dirname ($file);
3755 push_dist_common ($file)
3756 if ($dir eq '.' || ! is_make_dir ($dir));
3760 # Files to distributed. Don't use ->value_as_list_recursive
3761 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3762 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3763 @dist_common = uniq @dist_common;
3764 variable_delete 'DIST_COMMON';
3765 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3767 # Now that we've processed DIST_COMMON, disallow further attempts
3769 $handle_dist_run = 1;
3771 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3772 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3774 # If the target 'dist-hook' exists, make sure it is run. This
3775 # allows users to do random weird things to the distribution
3776 # before it is packaged up.
3777 push (@dist_targets, 'dist-hook')
3778 if user_phony_rule 'dist-hook';
3779 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3781 my $flm = option ('filename-length-max');
3782 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3784 $output_rules .= &file_contents ('distdir',
3785 new Automake::Location,
3787 FILENAME_FILTER => $filename_filter);
3791 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3792 # -------------------------------------------------------
3793 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3794 # name. Use $WHERE as a location in the diagnostic, if any.
3795 sub check_directory ($$;$)
3797 my ($dir, $where, $reldir) = @_;
3798 $reldir = '.' unless defined $reldir;
3800 error $where, "required directory $reldir/$dir does not exist"
3801 unless -d "$reldir/$dir";
3803 # If an 'obj/' directory exists, BSD make will enter it before
3804 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3810 # % cat obj/Makefile
3816 # % pmake # BSD make
3819 msg ('portability', $where,
3820 "naming a subdirectory 'obj' causes troubles with BSD make")
3823 # 'aux' is probably the most important of the following forbidden name,
3824 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3825 msg ('portability', $where,
3826 "name '$dir' is reserved on W32 and DOS platforms")
3827 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3830 # check_directories_in_var ($VARIABLE)
3831 # ------------------------------------
3832 # Recursively check all items in variables $VARIABLE as directories
3833 sub check_directories_in_var ($)
3836 $var->traverse_recursively
3839 my ($var, $val, $cond, $full_cond) = @_;
3840 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3844 skip_ac_subst => 1);
3847 # &handle_subdirs ()
3848 # ------------------
3849 # Handle subdirectories.
3850 sub handle_subdirs ()
3852 my $subdirs = var ('SUBDIRS');
3856 check_directories_in_var $subdirs;
3858 my $dsubdirs = var ('DIST_SUBDIRS');
3859 check_directories_in_var $dsubdirs
3862 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3863 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3867 # ($REGEN, @DEPENDENCIES)
3870 # If aclocal.m4 creation is automated, return the list of its dependencies.
3871 sub scan_aclocal_m4 ()
3873 my $regen_aclocal = 0;
3875 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3876 set_seen 'CONFIGURE_DEPENDENCIES';
3878 if (-f 'aclocal.m4')
3880 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3882 my $aclocal = new Automake::XFile "< aclocal.m4";
3883 my $line = $aclocal->getline;
3884 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3889 if (set_seen ('ACLOCAL_M4_SOURCES'))
3891 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3892 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3893 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
3894 . "It should be safe to simply remove it");
3897 # Note that it might be possible that aclocal.m4 doesn't exist but
3898 # should be auto-generated. This case probably isn't very
3901 return ($regen_aclocal, @ac_deps);
3905 # Helper function for substitute_ac_subst_variables.
3906 sub substitute_ac_subst_variables_worker($)
3909 return "\@$token\@" if var $token;
3910 return "\${$token\}";
3913 # substitute_ac_subst_variables ($TEXT)
3914 # -------------------------------------
3915 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3917 sub substitute_ac_subst_variables ($)
3920 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3925 # &prepend_srcdir (@INPUTS)
3926 # -------------------------
3927 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3928 # if an input file has a directory part the same as the current
3929 # directory, then the directory part is simply replaced by $(srcdir).
3930 # But if the directory part is different, then $(top_srcdir) is
3932 sub prepend_srcdir (@)
3937 foreach my $single (@inputs)
3939 if (dirname ($single) eq $relative_dir)
3941 push (@newinputs, '$(srcdir)/' . basename ($single));
3945 push (@newinputs, '$(top_srcdir)/' . $single);
3952 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3953 # ---------------------------------------------------
3954 # Compute a list of dependencies appropriate for the rebuild
3956 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3957 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
3958 sub rewrite_inputs_into_dependencies ($@)
3960 my ($file, @inputs) = @_;
3965 # We cannot create dependencies on shell variables.
3966 next if (substitute_ac_subst_variables $i) =~ /\$/;
3968 if (exists $ac_config_files_location{$i} && $i ne $file)
3970 my $di = dirname $i;
3971 if ($di eq $relative_dir)
3975 # In the top-level Makefile we do not use $(top_builddir), because
3976 # we are already there, and since the targets are built without
3977 # a $(top_builddir), it helps BSD Make to match them with
3979 elsif ($relative_dir ne '.')
3981 $i = '$(top_builddir)/' . $i;
3986 msg ('error', $ac_config_files_location{$file},
3987 "required file '$i' not found")
3988 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3989 ($i) = prepend_srcdir ($i);
3990 push_dist_common ($i);
3999 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4000 # ------------------------------------------------------------------
4001 # Handle remaking and configure stuff.
4002 # We need the name of the input file, to do proper remaking rules.
4003 sub handle_configure ($$$@)
4005 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4007 prog_error 'empty @inputs'
4010 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4012 my $rel_makefile = basename $makefile;
4014 my $colon_infile = ':' . join (':', @inputs);
4015 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4016 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4017 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4018 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4019 @configure_deps, @aclocal_m4_deps,
4020 '$(top_srcdir)/' . $configure_ac);
4021 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4022 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4023 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4026 my $automake_options = '--' . $strictness_name .
4027 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4029 $output_rules .= file_contents
4031 new Automake::Location,
4032 MAKEFILE => $rel_makefile,
4033 'MAKEFILE-DEPS' => "@rewritten",
4034 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4035 'MAKEFILE-IN' => $rel_makefile_in,
4036 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4037 'MAKEFILE-IN-DEPS' => "@include_stack",
4038 'MAKEFILE-AM' => $rel_makefile_am,
4039 'AUTOMAKE-OPTIONS' => $automake_options,
4040 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4041 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4042 VERBOSE => verbose_flag ('GEN'));
4044 if ($relative_dir eq '.')
4046 &push_dist_common ('acconfig.h')
4050 # If we have a configure header, require it.
4052 my @distclean_config;
4053 foreach my $spec (@config_headers)
4056 # $CONFIG_H_PATH: config.h from top level.
4057 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4058 my $config_h_dir = dirname ($config_h_path);
4060 # If the header is in the current directory we want to build
4061 # the header here. Otherwise, if we're at the topmost
4062 # directory and the header's directory doesn't have a
4063 # Makefile, then we also want to build the header.
4064 if ($relative_dir eq $config_h_dir
4065 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4067 my ($cn_sans_dir, $stamp_dir);
4068 if ($relative_dir eq $config_h_dir)
4070 $cn_sans_dir = basename ($config_h_path);
4075 $cn_sans_dir = $config_h_path;
4076 if ($config_h_dir eq '.')
4082 $stamp_dir = $config_h_dir . '/';
4086 # This will also distribute all inputs.
4087 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4089 # Cannot define rebuild rules for filenames with shell variables.
4090 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4092 # Header defined in this directory.
4094 if (-f $config_h_path . '.top')
4096 push (@files, "$cn_sans_dir.top");
4098 if (-f $config_h_path . '.bot')
4100 push (@files, "$cn_sans_dir.bot");
4103 push_dist_common (@files);
4105 # For now, acconfig.h can only appear in the top srcdir.
4106 if (-f 'acconfig.h')
4108 push (@files, '$(top_srcdir)/acconfig.h');
4111 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4113 file_contents ('remake-hdr',
4114 new Automake::Location,
4116 CONFIG_H => $cn_sans_dir,
4117 CONFIG_HIN => $ins[0],
4118 CONFIG_H_DEPS => "@ins",
4119 CONFIG_H_PATH => $config_h_path,
4122 push @distclean_config, $cn_sans_dir, $stamp;
4126 $output_rules .= file_contents ('clean-hdr',
4127 new Automake::Location,
4128 FILES => "@distclean_config")
4129 if @distclean_config;
4131 # Distribute and define mkinstalldirs only if it is already present
4132 # in the package, for backward compatibility (some people may still
4133 # use $(mkinstalldirs)).
4134 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4137 # Use require_file so that any existing script gets updated
4138 # by --force-missing.
4139 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4140 define_variable ('mkinstalldirs',
4141 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4145 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4146 # at least one argument, and $(mkinstalldirs) used to work
4147 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4148 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4151 reject_var ('CONFIG_HEADER',
4152 "'CONFIG_HEADER' is an anachronism; now determined "
4153 . "automatically\nfrom '$configure_ac'");
4156 foreach my $spec (@config_headers)
4158 my ($out, @ins) = split_config_file_spec ($spec);
4159 # Generate CONFIG_HEADER define.
4160 if ($relative_dir eq dirname ($out))
4162 push @config_h, basename ($out);
4166 push @config_h, "\$(top_builddir)/$out";
4169 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4172 # Now look for other files in this directory which must be remade
4173 # by config.status, and generate rules for them.
4174 my @actual_other_files = ();
4175 # These get cleaned only in a VPATH build.
4176 my @actual_other_vpath_files = ();
4177 foreach my $lfile (@other_input_files)
4181 if ($lfile =~ /^([^:]*):(.*)$/)
4183 # This is the ":" syntax of AC_OUTPUT.
4185 @inputs = split (':', $2);
4191 @inputs = $file . '.in';
4194 # Automake files should not be stored in here, but in %MAKE_LIST.
4195 prog_error ("$lfile in \@other_input_files\n"
4196 . "\@other_input_files = (@other_input_files)")
4197 if -f $file . '.am';
4199 my $local = basename ($file);
4201 # We skip files that aren't in this directory. However, if
4202 # the file's directory does not have a Makefile, and we are
4203 # currently doing '.', then we create a rule to rebuild the
4204 # file in the subdir.
4205 my $fd = dirname ($file);
4206 if ($fd ne $relative_dir)
4208 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4218 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4220 # Cannot output rules for shell variables.
4221 next if (substitute_ac_subst_variables $local) =~ /\$/;
4224 my $cond = $ac_config_files_condition{$lfile};
4227 $condstr = $cond->subst_string;
4228 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4229 $ac_config_files_location{$file});
4231 $output_rules .= ($condstr . $local . ': '
4232 . '$(top_builddir)/config.status '
4233 . "@rewritten_inputs\n"
4235 . 'cd $(top_builddir) && '
4236 . '$(SHELL) ./config.status '
4237 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4240 push (@actual_other_files, $local);
4243 # For links we should clean destinations and distribute sources.
4244 foreach my $spec (@config_links)
4246 my ($link, $file) = split /:/, $spec;
4247 # Some people do AC_CONFIG_LINKS($computed). We only handle
4248 # the DEST:SRC form.
4250 my $where = $ac_config_files_location{$link};
4252 # Skip destinations that contain shell variables.
4253 if ((substitute_ac_subst_variables $link) !~ /\$/)
4255 # We skip links that aren't in this directory. However, if
4256 # the link's directory does not have a Makefile, and we are
4257 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4258 # in '.'s Makefile.in.
4259 my $local = basename ($link);
4260 my $fd = dirname ($link);
4261 if ($fd ne $relative_dir)
4263 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4274 push @actual_other_files, $local if $local;
4278 push @actual_other_vpath_files, $local if $local;
4282 # Do not process sources that contain shell variables.
4283 if ((substitute_ac_subst_variables $file) !~ /\$/)
4285 my $fd = dirname ($file);
4287 # We distribute files that are in this directory.
4288 # At the top-level ('.') we also distribute files whose
4289 # directory does not have a Makefile.
4290 if (($fd eq $relative_dir)
4291 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4293 # The following will distribute $file as a side-effect when
4294 # it is appropriate (i.e., when $file is not already an output).
4295 # We do not need the result, just the side-effect.
4296 rewrite_inputs_into_dependencies ($link, $file);
4301 # These files get removed by "make distclean".
4302 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4303 @actual_other_files);
4304 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4305 @actual_other_vpath_files);
4311 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4312 'oldinclude', 'pkginclude',
4316 next unless $_->[1] =~ /\..*$/;
4317 &saw_extension ($&);
4323 return if ! $seen_gettext || $relative_dir ne '.';
4325 my $subdirs = var 'SUBDIRS';
4329 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4333 # Perform some sanity checks to help users get the right setup.
4334 # We disable these tests when po/ doesn't exist in order not to disallow
4335 # unusual gettext setups.
4340 # | 1) If a package doesn't have a directory po/ at top level, it
4341 # | will likely have multiple po/ directories in subpackages.
4343 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4344 # | is used without 'external'. It is also useful to warn for the
4345 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4346 # | warnings apply only to the usual layout of packages, therefore
4347 # | they should both be disabled if no po/ directory is found at
4352 my @subdirs = $subdirs->value_as_list_recursive;
4354 msg_var ('syntax', $subdirs,
4355 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4356 if ! grep ($_ eq 'po', @subdirs);
4358 # intl/ is not required when AM_GNU_GETTEXT is called with the
4359 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4360 msg_var ('syntax', $subdirs,
4361 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4362 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4363 && ! grep ($_ eq 'intl', @subdirs));
4365 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4366 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4367 msg_var ('syntax', $subdirs,
4368 "'intl' should not be in SUBDIRS when "
4369 . "AM_GNU_GETTEXT([external]) is used")
4370 if ($seen_gettext_external && ! $seen_gettext_intl
4371 && grep ($_ eq 'intl', @subdirs));
4374 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4377 # Handle footer elements.
4380 reject_rule ('.SUFFIXES',
4381 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4383 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4384 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4385 # anything else, by sticking it right after the default: target.
4386 $output_header .= ".SUFFIXES:\n";
4387 my $suffixes = var 'SUFFIXES';
4388 my @suffixes = Automake::Rule::suffixes;
4389 if (@suffixes || $suffixes)
4391 # Make sure SUFFIXES has unique elements. Sort them to ensure
4392 # the output remains consistent. However, $(SUFFIXES) is
4393 # always at the start of the list, unsorted. This is done
4394 # because make will choose rules depending on the ordering of
4395 # suffixes, and this lets the user have some control. Push
4396 # actual suffixes, and not $(SUFFIXES). Some versions of make
4397 # do not like variable substitutions on the .SUFFIXES line.
4398 my @user_suffixes = ($suffixes
4399 ? $suffixes->value_as_list_recursive : ());
4401 my %suffixes = map { $_ => 1 } @suffixes;
4402 delete @suffixes{@user_suffixes};
4404 $output_header .= (".SUFFIXES: "
4405 . join (' ', @user_suffixes, sort keys %suffixes)
4409 $output_trailer .= file_contents ('footer', new Automake::Location);
4413 # Generate 'make install' rules.
4414 sub handle_install ()
4416 $output_rules .= &file_contents
4418 new Automake::Location,
4419 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4420 ? (" \$(BUILT_SOURCES)\n"
4421 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4423 'installdirs-local' => (user_phony_rule 'installdirs-local'
4424 ? ' installdirs-local' : ''),
4425 am__installdirs => variable_value ('am__installdirs') || '');
4429 # Deal with all and all-am.
4432 my ($makefile) = @_;
4436 # Put this at the beginning for the sake of non-GNU makes. This
4437 # is still wrong if these makes can run parallel jobs. But it is
4439 unshift (@all, basename ($makefile));
4441 foreach my $spec (@config_headers)
4443 my ($out, @ins) = split_config_file_spec ($spec);
4444 push (@all, basename ($out))
4445 if dirname ($out) eq $relative_dir;
4448 # Install 'all' hooks.
4449 push (@all, "all-local")
4450 if user_phony_rule "all-local";
4452 &pretty_print_rule ("all-am:", "\t\t", @all);
4453 &depend ('.PHONY', 'all-am', 'all');
4458 my @local_headers = ();
4459 push @local_headers, '$(BUILT_SOURCES)'
4460 if var ('BUILT_SOURCES');
4461 foreach my $spec (@config_headers)
4463 my ($out, @ins) = split_config_file_spec ($spec);
4464 push @local_headers, basename ($out)
4465 if dirname ($out) eq $relative_dir;
4470 # We need to make sure config.h is built before we recurse.
4471 # We also want to make sure that built sources are built
4472 # before any ordinary 'all' targets are run. We can't do this
4473 # by changing the order of dependencies to the "all" because
4474 # that breaks when using parallel makes. Instead we handle
4475 # things explicitly.
4476 $output_all .= ("all: @local_headers"
4478 . '$(MAKE) $(AM_MAKEFLAGS) '
4479 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4481 depend ('.MAKE', 'all');
4485 $output_all .= "all: " . (var ('SUBDIRS')
4486 ? 'all-recursive' : 'all-am') . "\n\n";
4490 # Generate helper targets for user recursion, where needed.
4491 sub handle_user_recursion ()
4493 return unless @extra_recursive_targets;
4495 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4496 map { "$_-recursive" } @extra_recursive_targets);
4497 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4498 foreach my $target (@extra_recursive_targets)
4500 # This allows the default target's rules to be overridden in
4502 user_phony_rule ($target);
4503 depend ("$target", "$target-$aux");
4504 depend ("$target-am", "$target-local");
4505 # Every user-defined recursive target 'foo' *must* have a valid
4506 # associated 'foo-local' rule; we define it as an empty rule by
4507 # default, so that the user can transparently extend it in his
4509 pretty_print_rule ("$target-local:");
4510 # $target-recursive might as well be undefined, so do not add
4511 # it here; it's taken care of in subdirs.am anyway.
4512 depend (".PHONY", "$target-am", "$target-local");
4517 # &do_check_merge_target ()
4518 # -------------------------
4519 # Handle check merge target specially.
4520 sub do_check_merge_target ()
4522 # Include user-defined local form of target.
4523 push @check_tests, 'check-local'
4524 if user_phony_rule 'check-local';
4526 # The check target must depend on the local equivalent of
4527 # 'all', to ensure all the primary targets are built. Then it
4528 # must build the local check rules.
4529 $output_rules .= "check-am: all-am\n";
4532 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4533 depend ('.MAKE', 'check-am');
4538 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4540 depend ('.MAKE', 'check-am');
4543 depend '.PHONY', 'check', 'check-am';
4544 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4545 $output_rules .= ("check: "
4546 . (var ('BUILT_SOURCES')
4547 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4549 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4551 depend ('.MAKE', 'check')
4552 if var ('BUILT_SOURCES');
4555 # handle_clean ($MAKEFILE)
4556 # ------------------------
4557 # Handle all 'clean' targets.
4558 sub handle_clean ($)
4560 my ($makefile) = @_;
4562 # Clean the files listed in user variables if they exist.
4563 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4564 if var ('MOSTLYCLEANFILES');
4565 $clean_files{'$(CLEANFILES)'} = CLEAN
4566 if var ('CLEANFILES');
4567 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4568 if var ('DISTCLEANFILES');
4569 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4570 if var ('MAINTAINERCLEANFILES');
4572 # Built sources are automatically removed by maintainer-clean.
4573 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4574 if var ('BUILT_SOURCES');
4576 # Compute a list of "rm"s to run for each target.
4577 my %rms = (MOSTLY_CLEAN, [],
4580 MAINTAINER_CLEAN, []);
4582 foreach my $file (keys %clean_files)
4584 my $when = $clean_files{$file};
4585 prog_error 'invalid entry in %clean_files'
4586 unless exists $rms{$when};
4588 my $rm = "rm -f $file";
4589 # If file is a variable, make sure when don't call 'rm -f' without args.
4590 $rm ="test -z \"$file\" || $rm"
4591 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4593 push @{$rms{$when}}, "\t-$rm\n";
4596 $output_rules .= &file_contents
4598 new Automake::Location,
4599 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4600 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4601 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4602 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4603 MAKEFILE => basename $makefile,
4608 # &target_cmp ($A, $B)
4609 # --------------------
4610 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4611 # other '.TARGETS' be last.
4614 return 0 if $a eq $b;
4616 my $a1 = substr ($a, 0, 1);
4617 my $b1 = substr ($b, 0, 1);
4620 return -1 if $b1 eq '.';
4621 return 1 if $a1 eq '.';
4627 # &handle_factored_dependencies ()
4628 # --------------------------------
4629 # Handle everything related to gathered targets.
4630 sub handle_factored_dependencies
4633 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4634 'uninstall-exec-local', 'uninstall-exec-hook',
4635 'uninstall-dvi-local',
4636 'uninstall-html-local',
4637 'uninstall-info-local',
4638 'uninstall-pdf-local',
4639 'uninstall-ps-local')
4643 reject_rule ($utarg, "use '$x', not '$utarg'");
4646 reject_rule ('install-local',
4647 "use 'install-data-local' or 'install-exec-local', "
4648 . "not 'install-local'");
4650 reject_rule ('install-hook',
4651 "use 'install-data-hook' or 'install-exec-hook', "
4652 . "not 'install-hook'");
4654 # Install the -local hooks.
4655 foreach (keys %dependencies)
4657 # Hooks are installed on the -am targets.
4659 depend ("$_-am", "$_-local")
4660 if user_phony_rule "$_-local";
4663 # Install the -hook hooks.
4664 # FIXME: Why not be as liberal as we are with -local hooks?
4665 foreach ('install-exec', 'install-data', 'uninstall')
4667 if (user_phony_rule "$_-hook")
4669 depend ('.MAKE', "$_-am");
4670 register_action("$_-am",
4671 ("\t\@\$(NORMAL_INSTALL)\n"
4672 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4676 # All the required targets are phony.
4677 depend ('.PHONY', keys %required_targets);
4679 # Actually output gathered targets.
4680 foreach (sort target_cmp keys %dependencies)
4682 # If there is nothing about this guy, skip it.
4684 unless (@{$dependencies{$_}}
4686 || $required_targets{$_});
4688 # Define gathered targets in undefined conditions.
4689 # FIXME: Right now we must handle .PHONY as an exception,
4690 # because people write things like
4691 # .PHONY: myphonytarget
4692 # to append dependencies. This would not work if Automake
4693 # refrained from defining its own .PHONY target as it does
4694 # with other overridden targets.
4695 # Likewise for '.MAKE'.
4696 my @undefined_conds = (TRUE,);
4697 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4700 Automake::Rule::define ($_, 'internal',
4701 RULE_AUTOMAKE, TRUE, INTERNAL);
4703 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4704 foreach my $cond (@undefined_conds)
4706 my $condstr = $cond->subst_string;
4707 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4708 $output_rules .= $actions{$_} if defined $actions{$_};
4709 $output_rules .= "\n";
4715 # &handle_tests_dejagnu ()
4716 # ------------------------
4717 sub handle_tests_dejagnu
4719 push (@check_tests, 'check-DEJAGNU');
4720 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4723 sub handle_per_suffix_test
4725 my ($test_suffix, %transform) = @_;
4726 my ($pfx, $generic, $am_exeext);
4727 if ($test_suffix eq '')
4731 $am_exeext = 'FALSE';
4735 prog_error ("test suffix '$test_suffix' lacks leading dot")
4736 unless $test_suffix =~ m/^\.(.*)/;
4737 $pfx = uc ($1) . '_';
4739 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4742 # The "test driver" program, deputed to handle tests protocol used by
4743 # test scripts. By default, it's assumed that no protocol is used, so
4744 # we fall back to the old behaviour, implemented by the 'test-driver'
4746 if (! var "${pfx}LOG_DRIVER")
4748 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4749 define_variable ("${pfx}LOG_DRIVER",
4750 "\$(SHELL) $am_config_aux_dir/test-driver",
4753 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4754 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4755 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4756 my $compile = "${pfx}LOG_COMPILE";
4757 define_variable ($compile,
4758 '$(' . $pfx . 'LOG_COMPILER)'
4759 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4760 . ' $(' . $pfx . 'LOG_FLAGS)',
4762 $output_rules .= file_contents ('check2', new Automake::Location,
4763 GENERIC => $generic,
4765 DRIVER_FLAGS => $driver_flags,
4766 COMPILE => '$(' . $compile . ')',
4767 EXT => $test_suffix,
4768 am__EXEEXT => $am_exeext,
4772 # is_valid_test_extension ($EXT)
4773 # ------------------------------
4774 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4776 sub is_valid_test_extension ($)
4780 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4782 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4786 # Handle TESTS variable and other checks.
4789 if (option 'dejagnu')
4791 &handle_tests_dejagnu;
4795 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4797 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4798 . "'AUTOMAKE_OPTIONS'");
4804 push (@check_tests, 'check-TESTS');
4805 my $check_deps = "@check";
4806 $output_rules .= &file_contents ('check', new Automake::Location,
4807 SERIAL_TESTS => !! option 'serial-tests',
4808 CHECK_DEPS => $check_deps);
4810 # Tests that are known programs should have $(EXEEXT) appended.
4811 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4812 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4813 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4814 if (var ('XFAIL_TESTS'));
4816 if (! option 'serial-tests')
4818 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4821 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4824 $at_exeext = subst ('EXEEXT');
4825 $suff = $at_exeext . ' ' . $suff;
4827 if (! var 'TEST_EXTENSIONS')
4829 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4831 my $var = var 'TEST_EXTENSIONS';
4832 # Currently, we are not able to deal with conditional contents
4833 # in TEST_EXTENSIONS.
4834 if ($var->has_conditional_contents)
4836 msg_var 'unsupported', $var,
4837 "'TEST_EXTENSIONS' cannot have conditional contents";
4839 my @test_suffixes = $var->value_as_list_recursive;
4840 if ((my @invalid_test_suffixes =
4841 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4843 error $var->rdef (TRUE)->location,
4844 "invalid test extensions: @invalid_test_suffixes";
4846 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4849 unshift (@test_suffixes, $at_exeext)
4850 unless $test_suffixes[0] eq $at_exeext;
4852 unshift (@test_suffixes, '');
4854 transform_variable_recursively
4855 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4857 my ($subvar, $val, $cond, $full_cond) = @_;
4860 if $val =~ /^\@.*\@$/;
4861 $obj =~ s/\$\(EXEEXT\)$//o;
4863 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4865 msg ('error', $subvar->rdef ($cond)->location,
4866 "using '$1' in TESTS is currently broken: '$val'");
4869 foreach my $test_suffix (@test_suffixes)
4872 if $test_suffix eq $at_exeext || $test_suffix eq '';
4873 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4874 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4878 handle_per_suffix_test ('',
4888 my $last_suffix = $test_suffixes[$#test_suffixes];
4890 foreach my $test_suffix (@test_suffixes)
4892 if ($test_suffix eq $last_suffix)
4898 $cur = 'am__test_logs' . $nhelper;
4900 define_variable ($cur,
4901 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4905 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4907 handle_per_suffix_test ($test_suffix,
4913 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4914 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4915 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
4920 # Handle Emacs Lisp.
4921 sub handle_emacs_lisp
4923 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4926 return if ! @elfiles;
4928 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4929 map { $_->[1] } @elfiles);
4930 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4931 '$(am__ELFILES:.el=.elc)');
4932 # This one can be overridden by users.
4933 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4935 push @all, '$(ELCFILES)';
4937 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4938 'EMACS', 'lispdir');
4944 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4946 return if ! @pyfiles;
4948 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4949 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4950 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4956 my @sourcelist = &am_install_var ('-candist',
4959 return if ! @sourcelist;
4961 my @prefixes = am_primary_prefixes ('JAVA', 1,
4965 my @java_sources = ();
4966 foreach my $prefix (@prefixes)
4968 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
4971 if $curs eq 'EXTRA';
4973 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
4977 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4978 unless $curs eq $dir;
4984 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
4987 if ($dir eq 'check')
4989 push (@check, "class$dir.stamp");
4993 push (@all, "class$dir.stamp");
4998 # Handle some of the minor options.
4999 sub handle_minor_options
5001 if (option 'readme-alpha')
5003 if ($relative_dir eq '.')
5005 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5007 msg ('error-gnits', $package_version_location,
5008 "version '$package_version' doesn't follow " .
5011 if (defined $1 && -f 'README-alpha')
5013 # This means we have an alpha release. See
5014 # GNITS_VERSION_PATTERN for details.
5015 push_dist_common ('README-alpha');
5021 ################################################################
5023 # ($OUTPUT, @INPUTS)
5024 # &split_config_file_spec ($SPEC)
5025 # -------------------------------
5026 # Decode the Autoconf syntax for config files (files, headers, links
5028 sub split_config_file_spec ($)
5031 my ($output, @inputs) = split (/:/, $spec);
5033 push @inputs, "$output.in"
5036 return ($output, @inputs);
5040 # locate_am (@POSSIBLE_SOURCES)
5041 # -----------------------------
5042 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5043 # This functions returns the first *.in file for which a *.am exists.
5044 # It returns undef otherwise.
5049 foreach my $file (@rest)
5051 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5062 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5063 # ---------------------------------------------------
5064 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5066 sub scan_autoconf_config_files ($$)
5068 my ($where, $config_files) = @_;
5070 # Look at potential Makefile.am's.
5071 foreach (split ' ', $config_files)
5073 # Must skip empty string for Perl 4.
5074 next if $_ eq "\\" || $_ eq '';
5076 # Handle $local:$input syntax.
5077 my ($local, @rest) = split (/:/);
5078 @rest = ("$local.in",) unless @rest;
5079 # Keep in sync with 'conffile-leading-dot.test'.
5080 msg ('unsupported', $where,
5081 "omit leading './' from config file names such as '$local';"
5082 . "\nremake rules might be subtly broken otherwise")
5083 if ($local =~ /^\.\//);
5084 my $input = locate_am @rest;
5087 # We have a file that automake should generate.
5088 $make_list{$input} = join (':', ($local, @rest));
5092 # We have a file that automake should cause to be
5093 # rebuilt, but shouldn't generate itself.
5094 push (@other_input_files, $_);
5096 $ac_config_files_location{$local} = $where;
5097 $ac_config_files_condition{$local} =
5098 new Automake::Condition (@cond_stack)
5104 # &scan_autoconf_traces ($FILENAME)
5105 # ---------------------------------
5106 sub scan_autoconf_traces ($)
5108 my ($filename) = @_;
5110 # Macros to trace, with their minimal number of arguments.
5112 # IMPORTANT: If you add a macro here, you should also add this macro
5113 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5115 AC_CANONICAL_BUILD => 0,
5116 AC_CANONICAL_HOST => 0,
5117 AC_CANONICAL_TARGET => 0,
5118 AC_CONFIG_AUX_DIR => 1,
5119 AC_CONFIG_FILES => 1,
5120 AC_CONFIG_HEADERS => 1,
5121 AC_CONFIG_LIBOBJ_DIR => 1,
5122 AC_CONFIG_LINKS => 1,
5126 AC_REQUIRE_AUX_FILE => 1,
5127 AC_SUBST_TRACE => 1,
5128 AM_AUTOMAKE_VERSION => 1,
5129 AM_CONDITIONAL => 2,
5130 _AM_EXTRA_RECURSIVE_TARGETS => 1,
5131 AM_GNU_GETTEXT => 0,
5132 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5133 AM_INIT_AUTOMAKE => 0,
5134 AM_MAINTAINER_MODE => 0,
5136 AM_PROG_CC_C_O => 0,
5137 _AM_SUBST_NOTMAKE => 1,
5140 _AM_COND_ENDIF => 1,
5141 LT_SUPPORTED_TAG => 1,
5142 _LT_AC_TAGCONFIG => 0,
5148 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5150 # Use a separator unlikely to be used, not ':', the default, which
5151 # has a precise meaning for AC_CONFIG_FILES and so on.
5152 $traces .= join (' ',
5153 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5156 my $tracefh = new Automake::XFile ("$traces $filename |");
5157 verb "reading $traces";
5162 while ($_ = $tracefh->getline)
5165 my ($here, $depth, @args) = split (/::/);
5166 $where = new Automake::Location $here;
5167 my $macro = $args[0];
5169 prog_error ("unrequested trace '$macro'")
5170 unless exists $traced{$macro};
5172 # Skip and diagnose malformed calls.
5173 if ($#args < $traced{$macro})
5175 msg ('syntax', $where, "not enough arguments for $macro");
5179 # Alphabetical ordering please.
5180 if ($macro eq 'AC_CANONICAL_BUILD')
5182 if ($seen_canonical <= AC_CANONICAL_BUILD)
5184 $seen_canonical = AC_CANONICAL_BUILD;
5187 elsif ($macro eq 'AC_CANONICAL_HOST')
5189 if ($seen_canonical <= AC_CANONICAL_HOST)
5191 $seen_canonical = AC_CANONICAL_HOST;
5194 elsif ($macro eq 'AC_CANONICAL_TARGET')
5196 $seen_canonical = AC_CANONICAL_TARGET;
5198 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5200 if ($seen_init_automake)
5202 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5203 . "AM_INIT_AUTOMAKE ...", partial => 1);
5204 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5206 $config_aux_dir = $args[1];
5207 $config_aux_dir_set_in_configure_ac = 1;
5208 check_directory ($config_aux_dir, $where);
5210 elsif ($macro eq 'AC_CONFIG_FILES')
5212 # Look at potential Makefile.am's.
5213 scan_autoconf_config_files ($where, $args[1]);
5215 elsif ($macro eq 'AC_CONFIG_HEADERS')
5217 foreach my $spec (split (' ', $args[1]))
5219 my ($dest, @src) = split (':', $spec);
5220 $ac_config_files_location{$dest} = $where;
5221 push @config_headers, $spec;
5224 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5226 $config_libobj_dir = $args[1];
5227 check_directory ($config_libobj_dir, $where);
5229 elsif ($macro eq 'AC_CONFIG_LINKS')
5231 foreach my $spec (split (' ', $args[1]))
5233 my ($dest, $src) = split (':', $spec);
5234 $ac_config_files_location{$dest} = $where;
5235 push @config_links, $spec;
5238 elsif ($macro eq 'AC_FC_SRCEXT')
5240 my $suffix = $args[1];
5241 # These flags are used as %SOURCEFLAG% in depend2.am,
5242 # where the trailing space is important.
5243 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5244 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5246 elsif ($macro eq 'AC_INIT')
5248 if (defined $args[2])
5250 $package_version = $args[2];
5251 $package_version_location = $where;
5254 elsif ($macro eq 'AC_LIBSOURCE')
5256 $libsources{$args[1]} = $here;
5258 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5260 # Only remember the first time a file is required.
5261 $required_aux_file{$args[1]} = $where
5262 unless exists $required_aux_file{$args[1]};
5264 elsif ($macro eq 'AC_SUBST_TRACE')
5266 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5267 # AC_SUBST(5), then too bad.
5268 $configure_vars{$args[1]} = $where
5269 if $args[1] =~ /^\w+$/;
5271 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5274 "version mismatch. This is Automake $VERSION,\n" .
5275 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5276 "comes from Automake $args[1]. You should recreate\n" .
5277 "aclocal.m4 with aclocal and run automake again.\n",
5278 # $? = 63 is used to indicate version mismatch to missing.
5280 if $VERSION ne $args[1];
5282 $seen_automake_version = 1;
5284 elsif ($macro eq 'AM_CONDITIONAL')
5286 $configure_cond{$args[1]} = $where;
5288 elsif ($macro eq '_AM_EXTRA_RECURSIVE_TARGETS')
5290 push @extra_recursive_targets, split (' ', $args[1]);
5292 elsif ($macro eq 'AM_GNU_GETTEXT')
5294 $seen_gettext = $where;
5295 $ac_gettext_location = $where;
5296 $seen_gettext_external = grep ($_ eq 'external', @args);
5298 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5300 $seen_gettext_intl = $where;
5302 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5304 $seen_init_automake = $where;
5305 if (defined $args[2])
5307 msg 'obsolete', $where, <<'EOF';
5308 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5309 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_INIT_AUTOMAKE-invocation
5311 $package_version = $args[2];
5312 $package_version_location = $where;
5314 elsif (defined $args[1])
5316 my @opts = split (' ', $args[1]);
5317 @opts = map { { option => $_, where => $where } } @opts;
5318 exit $exit_code if process_global_option_list (@opts);
5321 elsif ($macro eq 'AM_MAINTAINER_MODE')
5323 $seen_maint_mode = $where;
5325 elsif ($macro eq 'AM_PROG_AR')
5329 elsif ($macro eq 'AM_PROG_CC_C_O')
5331 $seen_cc_c_o = $where;
5333 elsif ($macro eq '_AM_COND_IF')
5335 cond_stack_if ('', $args[1], $where);
5336 error ($where, "missing m4 quoting, macro depth $depth")
5339 elsif ($macro eq '_AM_COND_ELSE')
5341 cond_stack_else ('!', $args[1], $where);
5342 error ($where, "missing m4 quoting, macro depth $depth")
5345 elsif ($macro eq '_AM_COND_ENDIF')
5347 cond_stack_endif (undef, undef, $where);
5348 error ($where, "missing m4 quoting, macro depth $depth")
5351 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5353 $ignored_configure_vars{$args[1]} = $where;
5355 elsif ($macro eq 'm4_include'
5356 || $macro eq 'm4_sinclude'
5357 || $macro eq 'sinclude')
5359 # Skip missing 'sinclude'd files.
5360 next if $macro ne 'm4_include' && ! -f $args[1];
5362 # Some modified versions of Autoconf don't use
5363 # frozen files. Consequently it's possible that we see all
5364 # m4_include's performed during Autoconf's startup.
5365 # Obviously we don't want to distribute Autoconf's files
5366 # so we skip absolute filenames here.
5367 push @configure_deps, '$(top_srcdir)/' . $args[1]
5368 unless $here =~ m,^(?:\w:)?[\\/],;
5369 # Keep track of the greatest timestamp.
5372 my $mtime = mtime $args[1];
5373 $configure_deps_greatest_timestamp = $mtime
5374 if $mtime > $configure_deps_greatest_timestamp;
5377 elsif ($macro eq 'LT_SUPPORTED_TAG')
5379 $libtool_tags{$args[1]} = 1;
5380 $libtool_new_api = 1;
5382 elsif ($macro eq '_LT_AC_TAGCONFIG')
5384 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5385 # We use it to detect whether tags are supported. Our
5386 # preferred interface is LT_SUPPORTED_TAG, but it was
5387 # introduced in Libtool 1.6.
5388 if (0 == keys %libtool_tags)
5390 # Hardcode the tags supported by Libtool 1.5.
5391 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5396 error ($where, "condition stack not properly closed")
5403 # &scan_autoconf_files ()
5404 # -----------------------
5405 # Check whether we use 'configure.ac' or 'configure.in'.
5406 # Scan it (and possibly 'aclocal.m4') for interesting things.
5407 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5408 sub scan_autoconf_files ()
5410 # Reinitialize libsources here. This isn't really necessary,
5411 # since we currently assume there is only one configure.ac. But
5412 # that won't always be the case.
5415 # Keep track of the youngest configure dependency.
5416 $configure_deps_greatest_timestamp = mtime $configure_ac;
5417 if (-e 'aclocal.m4')
5419 my $mtime = mtime 'aclocal.m4';
5420 $configure_deps_greatest_timestamp = $mtime
5421 if $mtime > $configure_deps_greatest_timestamp;
5424 scan_autoconf_traces ($configure_ac);
5426 @configure_input_files = sort keys %make_list;
5427 # Set input and output files if not specified by user.
5430 @input_files = @configure_input_files;
5431 %output_files = %make_list;
5435 if (! $seen_init_automake)
5437 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5438 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5439 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5440 . "and that aclocal.m4 was recently regenerated "
5441 . "(using aclocal)");
5445 if (! $seen_automake_version)
5447 if (-f 'aclocal.m4')
5449 error ($seen_init_automake,
5450 "your implementation of AM_INIT_AUTOMAKE comes from " .
5451 "an\nold Automake version. You should recreate " .
5452 "aclocal.m4\nwith aclocal and run automake again",
5453 # $? = 63 is used to indicate version mismatch to missing.
5458 error ($seen_init_automake,
5459 "no proper implementation of AM_INIT_AUTOMAKE was " .
5460 "found,\nprobably because aclocal.m4 is missing.\n" .
5461 "You should run aclocal to create this file, then\n" .
5462 "run automake again");
5469 # Look for some files we need. Always check for these. This
5470 # check must be done for every run, even those where we are only
5471 # looking at a subdir Makefile. We must set relative_dir for
5472 # push_required_file to work.
5473 # Sort the files for stable verbose output.
5474 $relative_dir = '.';
5475 foreach my $file (sort keys %required_aux_file)
5477 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5479 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5480 if -f $config_aux_dir . '/install.sh';
5482 # Preserve dist_common for later.
5483 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5487 ################################################################
5489 # Do any extra checking for GNU standards.
5490 sub check_gnu_standards
5492 if ($relative_dir eq '.')
5494 # In top level (or only) directory.
5495 require_file ("$am_file.am", GNU,
5496 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5498 # Accept one of these three licenses; default to COPYING.
5499 # Make sure we do not overwrite an existing license.
5501 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5509 require_file ("$am_file.am", GNU, 'COPYING')
5513 for my $opt ('no-installman', 'no-installinfo')
5515 msg ('error-gnu', option $opt,
5516 "option '$opt' disallowed by GNU standards")
5521 # Do any extra checking for GNITS standards.
5522 sub check_gnits_standards
5524 if ($relative_dir eq '.')
5526 # In top level (or only) directory.
5527 require_file ("$am_file.am", GNITS, 'THANKS');
5531 ################################################################
5533 # Functions to handle files of each language.
5535 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5536 # simple formula: Return value is LANG_SUBDIR if the resulting object
5537 # file should be in a subdir if the source file is, LANG_PROCESS if
5538 # file is to be dealt with, LANG_IGNORE otherwise.
5540 # Much of the actual processing is handled in
5541 # handle_single_transform. These functions exist so that
5542 # auxiliary information can be recorded for a later cleanup pass.
5543 # Note that the calls to these functions are computed, so don't bother
5544 # searching for their precise names in the source.
5546 # This is just a convenience function that can be used to determine
5547 # when a subdir object should be used.
5550 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5553 # Rewrite a single C source file.
5556 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5558 my $r = LANG_PROCESS;
5559 if (option 'subdir-objects')
5562 if ($directory && $directory ne '.')
5564 $base = $directory . '/' . $base;
5566 # libtool is always able to put the object at the proper place,
5567 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5568 msg_var ('portability', $var,
5569 "compiling '$base.c' in subdir requires "
5570 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5571 uniq_scope => US_GLOBAL,
5572 uniq_part => 'AM_PROG_CC_C_O subdir')
5573 unless $seen_cc_c_o || $obj eq '.lo';
5578 && $have_per_exec_flags
5579 && ! option 'subdir-objects'
5582 msg_var ('portability',
5583 $var, "compiling '$base.c' with per-target flags requires "
5584 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5585 uniq_scope => US_GLOBAL,
5586 uniq_part => 'AM_PROG_CC_C_O per-target')
5592 # Rewrite a single C++ source file.
5593 sub lang_cxx_rewrite
5595 return &lang_sub_obj;
5598 # Rewrite a single header file.
5599 sub lang_header_rewrite
5601 # Header files are simply ignored.
5605 # Rewrite a single Vala source file.
5606 sub lang_vala_rewrite
5608 my ($directory, $base, $ext) = @_;
5610 (my $newext = $ext) =~ s/vala$/c/;
5611 return (LANG_SUBDIR, $newext);
5614 # Rewrite a single yacc file.
5615 sub lang_yacc_rewrite
5617 my ($directory, $base, $ext) = @_;
5619 my $r = &lang_sub_obj;
5620 (my $newext = $ext) =~ tr/y/c/;
5621 return ($r, $newext);
5624 # Rewrite a single yacc++ file.
5625 sub lang_yaccxx_rewrite
5627 my ($directory, $base, $ext) = @_;
5629 my $r = &lang_sub_obj;
5630 (my $newext = $ext) =~ tr/y/c/;
5631 return ($r, $newext);
5634 # Rewrite a single lex file.
5635 sub lang_lex_rewrite
5637 my ($directory, $base, $ext) = @_;
5639 my $r = &lang_sub_obj;
5640 (my $newext = $ext) =~ tr/l/c/;
5641 return ($r, $newext);
5644 # Rewrite a single lex++ file.
5645 sub lang_lexxx_rewrite
5647 my ($directory, $base, $ext) = @_;
5649 my $r = &lang_sub_obj;
5650 (my $newext = $ext) =~ tr/l/c/;
5651 return ($r, $newext);
5654 # Rewrite a single assembly file.
5655 sub lang_asm_rewrite
5657 return &lang_sub_obj;
5660 # Rewrite a single preprocessed assembly file.
5661 sub lang_cppasm_rewrite
5663 return &lang_sub_obj;
5666 # Rewrite a single Fortran 77 file.
5667 sub lang_f77_rewrite
5669 return &lang_sub_obj;
5672 # Rewrite a single Fortran file.
5675 return &lang_sub_obj;
5678 # Rewrite a single preprocessed Fortran file.
5679 sub lang_ppfc_rewrite
5681 return &lang_sub_obj;
5684 # Rewrite a single preprocessed Fortran 77 file.
5685 sub lang_ppf77_rewrite
5687 return &lang_sub_obj;
5690 # Rewrite a single ratfor file.
5691 sub lang_ratfor_rewrite
5693 return &lang_sub_obj;
5696 # Rewrite a single Objective C file.
5697 sub lang_objc_rewrite
5699 return &lang_sub_obj;
5702 # Rewrite a single Objective C++ file.
5703 sub lang_objcxx_rewrite
5705 return &lang_sub_obj;
5708 # Rewrite a single Unified Parallel C file.
5709 sub lang_upc_rewrite
5711 return &lang_sub_obj;
5714 # Rewrite a single Java file.
5715 sub lang_java_rewrite
5720 # The lang_X_finish functions are called after all source file
5721 # processing is done. Each should handle defining rules for the
5722 # language, etc. A finish function is only called if a source file of
5723 # the appropriate type has been seen.
5725 sub lang_vala_finish_target ($$)
5727 my ($self, $name) = @_;
5729 my $derived = canonicalize ($name);
5730 my $var = var "${derived}_SOURCES";
5733 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5735 # For automake bug#11229.
5736 return unless @vala_sources;
5738 foreach my $vala_file (@vala_sources)
5740 my $c_file = $vala_file;
5741 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5743 $c_file = "\$(srcdir)/$c_file";
5744 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5745 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5746 . "\t\@if test -f \$@; then :; else \\\n"
5747 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5749 $clean_files{$c_file} = MAINTAINER_CLEAN;
5753 # Add rebuild rules for generated header and vapi files
5754 my $flags = var ($derived . '_VALAFLAGS');
5758 foreach my $flag ($flags->value_as_list_recursive)
5760 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5761 '--vapi', '--internal-vapi', '--gir')))
5763 my $headerfile = "\$(srcdir)/$flag";
5764 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5765 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5766 . "\t\@if test -f \$@; then :; else \\\n"
5767 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5770 # valac is not used when building from dist tarballs
5771 # distribute the generated files
5772 push_dist_common ($headerfile);
5773 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5779 my $compile = $self->compile;
5781 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5782 # rule into '${derived}_VALAFLAGS' if it exists.
5783 my $val = "${derived}_VALAFLAGS";
5784 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5787 # VALAFLAGS is a user variable (per GNU Standards),
5788 # it should not be overridden in the Makefile...
5789 check_user_variables 'VALAFLAGS';
5791 my $dirname = dirname ($name);
5793 # Only generate C code, do not run C compiler
5796 my $verbose = verbose_flag ('VALAC');
5797 my $silent = silent_flag ();
5798 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5801 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5802 # Since the C files generated from the vala sources depend on the
5803 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5804 # those of the C files generated by the valac invocation below (this is
5805 # especially important on systems with sub-second timestamp resolution).
5806 # Thus we need to create the stamp file *before* invoking valac, and to
5807 # move it to its final location only after valac has been invoked.
5808 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5809 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5810 "\t${silent}mv -f \$\@-t \$\@\n";
5812 push_dist_common ($stampfile);
5814 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5817 # Add output rules to invoke valac and create stamp file as a witness
5818 # to handle multiple outputs. This function is called after all source
5819 # file processing is done.
5820 sub lang_vala_finish
5824 foreach my $prog (keys %known_programs)
5826 lang_vala_finish_target ($self, $prog);
5829 while (my ($name) = each %known_libraries)
5831 lang_vala_finish_target ($self, $name);
5835 # The built .c files should be cleaned only on maintainer-clean
5836 # as the .c files are distributed. This function is called for each
5837 # .vala source file.
5838 sub lang_vala_target_hook
5840 my ($self, $aggregate, $output, $input, %transform) = @_;
5842 $clean_files{$output} = MAINTAINER_CLEAN;
5845 # This is a yacc helper which is called whenever we have decided to
5846 # compile a yacc file.
5847 sub lang_yacc_target_hook
5849 my ($self, $aggregate, $output, $input, %transform) = @_;
5851 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5852 # have to to generate special code.
5853 my $yflags_contains_minus_d = 0;
5855 foreach my $pfx ("", "${aggregate}_")
5857 my $yflagsvar = var ("${pfx}YFLAGS");
5858 next unless $yflagsvar;
5859 # We cannot work reliably with conditionally-defined YFLAGS.
5860 if ($yflagsvar->has_conditional_contents)
5862 msg_var ('unsupported', $yflagsvar,
5863 "'${pfx}YFLAGS' cannot have conditional contents");
5867 $yflags_contains_minus_d = 1
5868 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5872 if ($yflags_contains_minus_d)
5874 # Found a '-d' that applies to the compilation of this file.
5875 # Add a dependency for the generated header file, and arrange
5876 # for that file to be included in the distribution.
5878 # The extension of the output file (e.g., '.c' or '.cxx').
5879 # We'll need it to compute the name of the generated header file.
5880 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5882 # We know that a yacc input should be turned into either a C or
5883 # C++ output file. We depend on this fact (here and in yacc.am),
5884 # so check that it really holds.
5885 my $lang = $languages{$extension_map{$output_ext}};
5886 prog_error "invalid output name '$output' for yacc file '$input'"
5887 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5889 (my $header_ext = $output_ext) =~ s/c/h/g;
5890 # Quote $output_ext in the regexp, so that dots in it are taken
5891 # as literal dots, not as metacharacters.
5892 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5894 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5895 RULE_AUTOMAKE, TRUE,
5898 my $condstr = $cond->subst_string;
5900 "$condstr${header}: $output\n"
5901 # Recover from removal of $header
5902 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5903 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5905 # Distribute the generated file, unless its .y source was
5906 # listed in a nodist_ variable. (&handle_source_transform
5907 # will set DIST_SOURCE.)
5908 &push_dist_common ($header)
5909 if $transform{'DIST_SOURCE'};
5911 # The GNU rules say that yacc/lex output files should be removed
5912 # by maintainer-clean. However, if the files are not distributed,
5913 # then we want to remove them with "make clean"; otherwise,
5914 # "make distcheck" will fail.
5915 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5917 # See the comment above for $HEADER.
5918 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5921 # This is a lex helper which is called whenever we have decided to
5922 # compile a lex file.
5923 sub lang_lex_target_hook
5925 my ($self, $aggregate, $output, $input, %transform) = @_;
5926 # The GNU rules say that yacc/lex output files should be removed
5927 # by maintainer-clean. However, if the files are not distributed,
5928 # then we want to remove them with "make clean"; otherwise,
5929 # "make distcheck" will fail.
5930 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5933 # This is a helper for both lex and yacc.
5934 sub yacc_lex_finish_helper
5936 return if defined $language_scratch{'lex-yacc-done'};
5937 $language_scratch{'lex-yacc-done'} = 1;
5939 # FIXME: for now, no line number.
5940 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5941 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5944 sub lang_yacc_finish
5946 return if defined $language_scratch{'yacc-done'};
5947 $language_scratch{'yacc-done'} = 1;
5949 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5951 yacc_lex_finish_helper;
5957 return if defined $language_scratch{'lex-done'};
5958 $language_scratch{'lex-done'} = 1;
5960 yacc_lex_finish_helper;
5964 # Given a hash table of linker names, pick the name that has the most
5965 # precedence. This is lame, but something has to have global
5966 # knowledge in order to eliminate the conflict. Add more linkers as
5972 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5974 return $l if defined $linkers{$l};
5979 # Called to indicate that an extension was used.
5983 $extension_seen{$ext} = 1;
5986 # register_language (%ATTRIBUTE)
5987 # ------------------------------
5988 # Register a single language.
5989 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5990 sub register_language (%)
5995 $option{'autodep'} = 'no'
5996 unless defined $option{'autodep'};
5997 $option{'linker'} = ''
5998 unless defined $option{'linker'};
5999 $option{'flags'} = []
6000 unless defined $option{'flags'};
6001 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6002 unless defined $option{'output_extensions'};
6003 $option{'nodist_specific'} = 0
6004 unless defined $option{'nodist_specific'};
6006 my $lang = new Language (%option);
6009 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6010 $languages{$lang->name} = $lang;
6011 my $link = $lang->linker;
6014 if (exists $link_languages{$link})
6016 prog_error ("'$link' has different definitions in "
6017 . $lang->name . " and " . $link_languages{$link}->name)
6018 if $lang->link ne $link_languages{$link}->link;
6022 $link_languages{$link} = $lang;
6026 # Update the pattern of known extensions.
6027 accept_extensions (@{$lang->extensions});
6029 # Upate the $suffix_rule map.
6030 foreach my $suffix (@{$lang->extensions})
6032 foreach my $dest (&{$lang->output_extensions} ($suffix))
6034 register_suffix_rule (INTERNAL, $suffix, $dest);
6039 # derive_suffix ($EXT, $OBJ)
6040 # --------------------------
6041 # This function is used to find a path from a user-specified suffix $EXT
6042 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6043 sub derive_suffix ($$)
6045 my ($source_ext, $obj) = @_;
6047 while (! $extension_map{$source_ext}
6048 && $source_ext ne $obj
6049 && exists $suffix_rules->{$source_ext}
6050 && exists $suffix_rules->{$source_ext}{$obj})
6052 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6059 ################################################################
6061 # Pretty-print something and append to output_rules.
6062 sub pretty_print_rule
6064 $output_rules .= &makefile_wrap (@_);
6068 ################################################################
6071 ## -------------------------------- ##
6072 ## Handling the conditional stack. ##
6073 ## -------------------------------- ##
6077 # make_conditional_string ($NEGATE, $COND)
6078 # ----------------------------------------
6079 sub make_conditional_string ($$)
6081 my ($negate, $cond) = @_;
6082 $cond = "${cond}_TRUE"
6083 unless $cond =~ /^TRUE|FALSE$/;
6084 $cond = Automake::Condition::conditional_negate ($cond)
6090 my %_am_macro_for_cond =
6092 AMDEP => "one of the compiler tests\n"
6093 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6094 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6095 am__fastdepCC => 'AC_PROG_CC',
6096 am__fastdepCCAS => 'AM_PROG_AS',
6097 am__fastdepCXX => 'AC_PROG_CXX',
6098 am__fastdepGCJ => 'AM_PROG_GCJ',
6099 am__fastdepOBJC => 'AC_PROG_OBJC',
6100 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6101 am__fastdepUPC => 'AM_PROG_UPC'
6105 # cond_stack_if ($NEGATE, $COND, $WHERE)
6106 # --------------------------------------
6107 sub cond_stack_if ($$$)
6109 my ($negate, $cond, $where) = @_;
6111 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6113 my $text = "$cond does not appear in AM_CONDITIONAL";
6114 my $scope = US_LOCAL;
6115 if (exists $_am_macro_for_cond{$cond})
6117 my $mac = $_am_macro_for_cond{$cond};
6118 $text .= "\n The usual way to define '$cond' is to add ";
6119 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6120 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6121 # These warnings appear in Automake files (depend2.am),
6122 # so there is no need to display them more than once:
6125 error $where, $text, uniq_scope => $scope;
6128 push (@cond_stack, make_conditional_string ($negate, $cond));
6130 return new Automake::Condition (@cond_stack);
6135 # cond_stack_else ($NEGATE, $COND, $WHERE)
6136 # ----------------------------------------
6137 sub cond_stack_else ($$$)
6139 my ($negate, $cond, $where) = @_;
6143 error $where, "else without if";
6147 $cond_stack[$#cond_stack] =
6148 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6150 # If $COND is given, check against it.
6153 $cond = make_conditional_string ($negate, $cond);
6155 error ($where, "else reminder ($negate$cond) incompatible with "
6156 . "current conditional: $cond_stack[$#cond_stack]")
6157 if $cond_stack[$#cond_stack] ne $cond;
6160 return new Automake::Condition (@cond_stack);
6165 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6166 # -----------------------------------------
6167 sub cond_stack_endif ($$$)
6169 my ($negate, $cond, $where) = @_;
6174 error $where, "endif without if";
6178 # If $COND is given, check against it.
6181 $cond = make_conditional_string ($negate, $cond);
6183 error ($where, "endif reminder ($negate$cond) incompatible with "
6184 . "current conditional: $cond_stack[$#cond_stack]")
6185 if $cond_stack[$#cond_stack] ne $cond;
6190 return new Automake::Condition (@cond_stack);
6197 ## ------------------------ ##
6198 ## Handling the variables. ##
6199 ## ------------------------ ##
6202 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6203 # -----------------------------------------------------
6204 # Like define_variable, but the value is a list, and the variable may
6205 # be defined conditionally. The second argument is the condition
6206 # under which the value should be defined; this should be the empty
6207 # string to define the variable unconditionally. The third argument
6208 # is a list holding the values to use for the variable. The value is
6209 # pretty printed in the output file.
6210 sub define_pretty_variable ($$$@)
6212 my ($var, $cond, $where, @value) = @_;
6214 if (! vardef ($var, $cond))
6216 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6217 '', $where, VAR_PRETTY);
6218 rvar ($var)->rdef ($cond)->set_seen;
6223 # define_variable ($VAR, $VALUE, $WHERE)
6224 # --------------------------------------
6225 # Define a new Automake Makefile variable VAR to VALUE, but only if
6226 # not already defined.
6227 sub define_variable ($$$)
6229 my ($var, $value, $where) = @_;
6230 define_pretty_variable ($var, TRUE, $where, $value);
6234 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6235 # ------------------------------------------------------------
6236 # Define the $VAR which content is the list of file names composed of
6237 # a @BASENAME and the $EXTENSION.
6238 sub define_files_variable ($\@$$)
6240 my ($var, $basename, $extension, $where) = @_;
6241 define_variable ($var,
6242 join (' ', map { "$_.$extension" } @$basename),
6247 # Like define_variable, but define a variable to be the configure
6248 # substitution by the same name.
6249 sub define_configure_variable ($)
6252 # Some variables we do not want to output. For instance it
6253 # would be a bad idea to output `U = @U@` when `@U@` can be
6254 # substituted as `\`.
6255 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6256 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6257 '', $configure_vars{$var}, $pretty);
6261 # define_compiler_variable ($LANG)
6262 # --------------------------------
6263 # Define a compiler variable. We also handle defining the 'LT'
6264 # version of the command when using libtool.
6265 sub define_compiler_variable ($)
6269 my ($var, $value) = ($lang->compiler, $lang->compile);
6270 my $libtool_tag = '';
6271 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6272 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6273 &define_variable ($var, $value, INTERNAL);
6274 if (var ('LIBTOOL'))
6276 my $verbose = define_verbose_libtool ();
6277 &define_variable ("LT$var",
6278 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6279 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6282 define_verbose_tagvar ($lang->ccer || 'GEN');
6286 # define_linker_variable ($LANG)
6287 # ------------------------------
6288 # Define linker variables.
6289 sub define_linker_variable ($)
6293 my $libtool_tag = '';
6294 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6295 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6297 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6298 # CCLINK = $(CCLD) blah blah...
6300 if (var ('LIBTOOL'))
6302 my $verbose = define_verbose_libtool ();
6303 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6304 . "\$(LIBTOOLFLAGS) --mode=link ";
6306 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6307 &define_variable ($lang->compiler, $lang);
6308 &define_verbose_tagvar ($lang->lder || 'GEN');
6311 sub define_per_target_linker_variable ($$)
6313 my ($linker, $target) = @_;
6315 # If the user wrote a custom link command, we don't define ours.
6316 return "${target}_LINK"
6317 if set_seen "${target}_LINK";
6319 my $xlink = $linker ? $linker : 'LINK';
6321 my $lang = $link_languages{$xlink};
6322 prog_error "Unknown language for linker variable '$xlink'"
6325 my $link_command = $lang->link;
6328 my $libtool_tag = '';
6329 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6330 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6332 my $verbose = define_verbose_libtool ();
6334 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6335 . "--mode=link " . $link_command;
6338 # Rewrite each occurrence of 'AM_$flag' in the link
6339 # command into '${derived}_$flag' if it exists.
6340 my $orig_command = $link_command;
6341 my @flags = (@{$lang->flags}, 'LDFLAGS');
6342 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6343 for my $flag (@flags)
6345 my $val = "${target}_$flag";
6346 $link_command =~ s/\(AM_$flag\)/\($val\)/
6350 # If the computed command is the same as the generic command, use
6351 # the command linker variable.
6352 return ($lang->linker, $lang->lder)
6353 if $link_command eq $orig_command;
6355 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6356 return ("${target}_LINK", $lang->lder);
6359 ################################################################
6361 # &check_trailing_slash ($WHERE, $LINE)
6362 # -------------------------------------
6363 # Return 1 iff $LINE ends with a slash.
6364 # Might modify $LINE.
6365 sub check_trailing_slash ($\$)
6367 my ($where, $line) = @_;
6369 # Ignore '##' lines.
6370 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6372 # Catch and fix a common error.
6373 msg "syntax", $where, "whitespace following trailing backslash"
6374 if $$line =~ s/\\\s+\n$/\\\n/;
6376 return $$line =~ /\\$/;
6380 # &read_am_file ($AMFILE, $WHERE)
6381 # -------------------------------
6382 # Read Makefile.am and set up %contents. Simultaneously copy lines
6383 # from Makefile.am into $output_trailer, or define variables as
6384 # appropriate. NOTE we put rules in the trailer section. We want
6385 # user rules to come after our generated stuff.
6386 sub read_am_file ($$)
6388 my ($amfile, $where) = @_;
6390 my $am_file = new Automake::XFile ("< $amfile");
6391 verb "reading $amfile";
6393 # Keep track of the youngest output dependency.
6394 my $mtime = mtime $amfile;
6395 $output_deps_greatest_timestamp = $mtime
6396 if $mtime > $output_deps_greatest_timestamp;
6402 my $var_look = VAR_ASIS;
6404 use constant IN_VAR_DEF => 0;
6405 use constant IN_RULE_DEF => 1;
6406 use constant IN_COMMENT => 2;
6407 my $prev_state = IN_RULE_DEF;
6409 while ($_ = $am_file->getline)
6411 $where->set ("$amfile:$.");
6412 if (/$IGNORE_PATTERN/o)
6414 # Merely delete comments beginning with two hashes.
6416 elsif (/$WHITE_PATTERN/o)
6418 error $where, "blank line following trailing backslash"
6420 # Stick a single white line before the incoming macro or rule.
6423 # Flush all comments seen so far.
6426 $output_vars .= $comment;
6430 elsif (/$COMMENT_PATTERN/o)
6432 # Stick comments before the incoming macro or rule. Make
6433 # sure a blank line precedes the first block of comments.
6434 $spacing = "\n" unless $blank;
6436 $comment .= $spacing . $_;
6438 $prev_state = IN_COMMENT;
6444 $saw_bk = check_trailing_slash ($where, $_);
6447 # We save the conditional stack on entry, and then check to make
6448 # sure it is the same on exit. This lets us conditionally include
6450 my @saved_cond_stack = @cond_stack;
6451 my $cond = new Automake::Condition (@cond_stack);
6453 my $last_var_name = '';
6454 my $last_var_type = '';
6455 my $last_var_value = '';
6457 # FIXME: shouldn't use $_ in this loop; it is too big.
6460 $where->set ("$amfile:$.");
6462 # Make sure the line is \n-terminated.
6466 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6467 # used by users. @MAINT@ is an anachronism now.
6468 $_ =~ s/\@MAINT\@//g
6469 unless $seen_maint_mode;
6471 my $new_saw_bk = check_trailing_slash ($where, $_);
6473 if (/$IGNORE_PATTERN/o)
6475 # Merely delete comments beginning with two hashes.
6477 # Keep any backslash from the previous line.
6478 $new_saw_bk = $saw_bk;
6480 elsif (/$WHITE_PATTERN/o)
6482 # Stick a single white line before the incoming macro or rule.
6484 error $where, "blank line following trailing backslash"
6487 elsif (/$COMMENT_PATTERN/o)
6489 error $where, "comment following trailing backslash"
6490 if $saw_bk && $prev_state != IN_COMMENT;
6492 # Stick comments before the incoming macro or rule.
6493 $comment .= $spacing . $_;
6495 $prev_state = IN_COMMENT;
6499 if ($prev_state == IN_RULE_DEF)
6501 my $cond = new Automake::Condition @cond_stack;
6502 $output_trailer .= $cond->subst_string;
6503 $output_trailer .= $_;
6505 elsif ($prev_state == IN_COMMENT)
6507 # If the line doesn't start with a '#', add it.
6508 # We do this because a continued comment like
6512 # is not portable. BSD make doesn't honor
6513 # escaped newlines in comments.
6515 $comment .= $spacing . $_;
6517 else # $prev_state == IN_VAR_DEF
6519 $last_var_value .= ' '
6520 unless $last_var_value =~ /\s$/;
6521 $last_var_value .= $_;
6525 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6526 $last_var_type, $cond,
6527 $last_var_value, $comment,
6528 $last_where, VAR_ASIS)
6530 $comment = $spacing = '';
6535 elsif (/$IF_PATTERN/o)
6537 $cond = cond_stack_if ($1, $2, $where);
6539 elsif (/$ELSE_PATTERN/o)
6541 $cond = cond_stack_else ($1, $2, $where);
6543 elsif (/$ENDIF_PATTERN/o)
6545 $cond = cond_stack_endif ($1, $2, $where);
6548 elsif (/$RULE_PATTERN/o)
6551 $prev_state = IN_RULE_DEF;
6553 # For now we have to output all definitions of user rules
6554 # and can't diagnose duplicates (see the comment in
6555 # Automake::Rule::define). So we go on and ignore the return value.
6556 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6558 check_variable_expansions ($_, $where);
6560 $output_trailer .= $comment . $spacing;
6561 my $cond = new Automake::Condition @cond_stack;
6562 $output_trailer .= $cond->subst_string;
6563 $output_trailer .= $_;
6564 $comment = $spacing = '';
6566 elsif (/$ASSIGNMENT_PATTERN/o)
6568 # Found a macro definition.
6569 $prev_state = IN_VAR_DEF;
6570 $last_var_name = $1;
6571 $last_var_type = $2;
6572 $last_var_value = $3;
6573 $last_where = $where->clone;
6574 if ($3 ne '' && substr ($3, -1) eq "\\")
6576 # We preserve the '\' because otherwise the long lines
6577 # that are generated will be truncated by broken
6579 $last_var_value = $3 . "\n";
6581 # Normally we try to output variable definitions in the
6582 # same format they were input. However, POSIX compliant
6583 # systems are not required to support lines longer than
6584 # 2048 bytes (most notably, some sed implementation are
6585 # limited to 4000 bytes, and sed is used by config.status
6586 # to rewrite Makefile.in into Makefile). Moreover nobody
6587 # would really write such long lines by hand since it is
6588 # hardly maintainable. So if a line is longer that 1000
6589 # bytes (an arbitrary limit), assume it has been
6590 # automatically generated by some tools, and flatten the
6591 # variable definition. Otherwise, keep the variable as it
6593 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6597 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6598 $last_var_type, $cond,
6599 $last_var_value, $comment,
6600 $last_where, $var_look)
6602 $comment = $spacing = '';
6603 $var_look = VAR_ASIS;
6606 elsif (/$INCLUDE_PATTERN/o)
6610 if ($path =~ s/^\$\(top_srcdir\)\///)
6612 push (@include_stack, "\$\(top_srcdir\)/$path");
6613 # Distribute any included file.
6615 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6616 # otherwise OSF make will implicitly copy the included
6617 # file in the build tree during "make distdir" to satisfy
6619 # (subdircond2.test and subdircond3.test will fail.)
6620 push_dist_common ("\$\(top_srcdir\)/$path");
6624 $path =~ s/\$\(srcdir\)\///;
6625 push (@include_stack, "\$\(srcdir\)/$path");
6626 # Always use the $(srcdir) prefix in DIST_COMMON,
6627 # otherwise OSF make will implicitly copy the included
6628 # file in the build tree during "make distdir" to satisfy
6630 # (subdircond2.test and subdircond3.test will fail.)
6631 push_dist_common ("\$\(srcdir\)/$path");
6632 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6634 $where->push_context ("'$path' included from here");
6635 &read_am_file ($path, $where);
6636 $where->pop_context;
6640 # This isn't an error; it is probably a continued rule.
6641 # In fact, this is what we assume.
6642 $prev_state = IN_RULE_DEF;
6643 check_variable_expansions ($_, $where);
6644 $output_trailer .= $comment . $spacing;
6645 my $cond = new Automake::Condition @cond_stack;
6646 $output_trailer .= $cond->subst_string;
6647 $output_trailer .= $_;
6648 $comment = $spacing = '';
6649 error $where, "'#' comment at start of rule is unportable"
6650 if $_ =~ /^\t\s*\#/;
6653 $saw_bk = $new_saw_bk;
6654 $_ = $am_file->getline;
6657 $output_trailer .= $comment;
6659 error ($where, "trailing backslash on last line")
6662 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6663 : "too many conditionals closed in include file"))
6664 if "@saved_cond_stack" ne "@cond_stack";
6668 # define_standard_variables ()
6669 # ----------------------------
6670 # A helper for read_main_am_file which initializes configure variables
6671 # and variables from header-vars.am.
6672 sub define_standard_variables
6674 my $saved_output_vars = $output_vars;
6675 my ($comments, undef, $rules) =
6676 file_contents_internal (1, "$libdir/am/header-vars.am",
6677 new Automake::Location);
6679 foreach my $var (sort keys %configure_vars)
6681 &define_configure_variable ($var);
6684 $output_vars .= $comments . $rules;
6687 # Read main am file.
6688 sub read_main_am_file ($$)
6690 my ($amfile, $infile) = @_;
6692 # This supports the strange variable tricks we are about to play.
6693 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6694 if (scalar (variables) > 0);
6696 # Generate copyright header for generated Makefile.in.
6697 # We do discard the output of predefined variables, handled below.
6698 $output_vars = ("# " . basename ($infile) . " generated by automake "
6699 . $VERSION . " from " . basename ($amfile) . ".\n");
6700 $output_vars .= '# ' . subst ('configure_input') . "\n";
6701 $output_vars .= $gen_copyright;
6703 # We want to predefine as many variables as possible. This lets
6704 # the user set them with '+=' in Makefile.am.
6705 &define_standard_variables;
6707 # Read user file, which might override some of our values.
6708 &read_am_file ($amfile, new Automake::Location);
6713 ################################################################
6716 # &flatten ($STRING)
6717 # ------------------
6718 # Flatten the $STRING and return the result.
6732 # transform_token ($TOKEN, \%PAIRS, $KEY)
6733 # =======================================
6734 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6735 # (which should be ?KEY? or any of the special %% requests)..
6736 sub transform_token ($$$)
6738 my ($token, $transform, $key) = @_;
6739 my $res = $transform->{$key};
6740 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6745 # transform ($TOKEN, \%PAIRS)
6746 # ===========================
6747 # If ($TOKEN, $VAL) is in %PAIRS:
6748 # - replaces %KEY% with $VAL,
6749 # - enables/disables ?KEY? and ?!KEY?,
6750 # - replaces %?KEY% with TRUE or FALSE.
6753 my ($token, $transform) = @_;
6756 # Must be before the following pattern to exclude the case
6757 # when there is neither IFTRUE nor IFFALSE.
6758 if ($token =~ /^%([\w\-]+)%$/)
6760 return transform_token ($token, $transform, $1);
6763 elsif ($token =~ /^%\?([\w\-]+)%$/)
6765 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6768 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6770 my $neg = ($1 eq '!') ? 1 : 0;
6771 my $val = transform_token ($token, $transform, $2);
6772 return (!!$val == $neg) ? '##%' : '';
6776 prog_error "Unknown request format: $token";
6781 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6782 # -----------------------------------------
6783 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6784 # No extra parsing or post-processing is done (i.e., recognition of
6785 # rules declaration or of make variables definitions).
6786 sub preprocess_file ($%)
6788 my ($file, %transform) = @_;
6790 # Complete %transform with global options.
6791 # Note that %transform goes last, so it overrides global options.
6792 %transform = ( 'MAINTAINER-MODE'
6793 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6795 'XZ' => !! option 'dist-xz',
6796 'LZMA' => !! option 'dist-lzma',
6797 'LZIP' => !! option 'dist-lzip',
6798 'BZIP2' => !! option 'dist-bzip2',
6799 'COMPRESS' => !! option 'dist-tarZ',
6800 'GZIP' => ! option 'no-dist-gzip',
6801 'SHAR' => !! option 'dist-shar',
6802 'ZIP' => !! option 'dist-zip',
6804 'INSTALL-INFO' => ! option 'no-installinfo',
6805 'INSTALL-MAN' => ! option 'no-installman',
6806 'CK-NEWS' => !! option 'check-news',
6808 'SUBDIRS' => !! var ('SUBDIRS'),
6809 'TOPDIR_P' => $relative_dir eq '.',
6811 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6812 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6813 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6815 'LIBTOOL' => !! var ('LIBTOOL'),
6819 if (! defined ($_ = $am_file_cache{$file}))
6821 verb "reading $file";
6822 # Swallow the whole file.
6823 my $fc_file = new Automake::XFile "< $file";
6824 my $saved_dollar_slash = $/;
6826 $_ = $fc_file->getline;
6827 $/ = $saved_dollar_slash;
6829 # Remove ##-comments.
6830 # Besides we don't need more than two consecutive new-lines.
6831 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6832 # Remember the contents of the just-read file.
6833 $am_file_cache{$file} = $_;
6836 # Substitute Automake template tokens.
6837 s/(?: % \?? [\w\-]+ %
6839 )/transform($&, \%transform)/gex;
6840 # transform() may have added some ##%-comments to strip.
6841 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6842 # ####### and do not remove the latter.)
6843 s/^[ \t]*(?:##%)+.*\n//gm;
6850 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6851 # ------------------------------------------
6852 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6854 sub make_paragraphs ($%)
6856 my ($file, %transform) = @_;
6857 $transform{FIRST} = !$transformed_files{$file};
6858 $transformed_files{$file} = 1;
6860 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6863 while (defined ($_ = shift @lines))
6866 # If we are a rule, eat as long as we start with a tab.
6867 if (/$RULE_PATTERN/smo)
6869 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6871 $paragraph .= "\n$_";
6873 unshift (@lines, $_);
6876 # If we are a comments, eat as much comments as you can.
6877 elsif (/$COMMENT_PATTERN/smo)
6879 while (defined ($_ = shift @lines)
6880 && $_ =~ /$COMMENT_PATTERN/smo)
6882 $paragraph .= "\n$_";
6884 unshift (@lines, $_);
6887 push @res, $paragraph;
6895 # ($COMMENT, $VARIABLES, $RULES)
6896 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6897 # -------------------------------------------------------------
6898 # Return contents of a file from $libdir/am, automatically skipping
6899 # macros or rules which are already known. $IS_AM iff the caller is
6900 # reading an Automake file (as opposed to the user's Makefile.am).
6901 sub file_contents_internal ($$$%)
6903 my ($is_am, $file, $where, %transform) = @_;
6905 $where->set ($file);
6907 my $result_vars = '';
6908 my $result_rules = '';
6912 # The following flags are used to track rules spanning across
6913 # multiple paragraphs.
6914 my $is_rule = 0; # 1 if we are processing a rule.
6915 my $discard_rule = 0; # 1 if the current rule should not be output.
6917 # We save the conditional stack on entry, and then check to make
6918 # sure it is the same on exit. This lets us conditionally include
6920 my @saved_cond_stack = @cond_stack;
6921 my $cond = new Automake::Condition (@cond_stack);
6923 foreach (make_paragraphs ($file, %transform))
6925 # FIXME: no line number available.
6926 $where->set ($file);
6929 error $where, "blank line following trailing backslash:\n$_"
6931 error $where, "comment following trailing backslash:\n$_"
6937 # Stick empty line before the incoming macro or rule.
6940 elsif (/$COMMENT_PATTERN/mso)
6943 # Stick comments before the incoming macro or rule.
6947 # Handle inclusion of other files.
6948 elsif (/$INCLUDE_PATTERN/o)
6952 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6953 $where->push_context ("'$file' included from here");
6955 my ($com, $vars, $rules)
6956 = file_contents_internal ($is_am, $file, $where, %transform);
6957 $where->pop_context;
6959 $result_vars .= $vars;
6960 $result_rules .= $rules;
6964 # Handling the conditionals.
6965 elsif (/$IF_PATTERN/o)
6967 $cond = cond_stack_if ($1, $2, $file);
6969 elsif (/$ELSE_PATTERN/o)
6971 $cond = cond_stack_else ($1, $2, $file);
6973 elsif (/$ENDIF_PATTERN/o)
6975 $cond = cond_stack_endif ($1, $2, $file);
6979 elsif (/$RULE_PATTERN/mso)
6983 # Separate relationship from optional actions: the first
6984 # `new-line tab" not preceded by backslash (continuation
6987 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6988 my ($relationship, $actions) = ($1, $2 || '');
6990 # Separate targets from dependencies: the first colon.
6991 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6992 my ($targets, $dependencies) = ($1, $2);
6993 # Remove the escaped new lines.
6994 # I don't know why, but I have to use a tmp $flat_deps.
6995 my $flat_deps = &flatten ($dependencies);
6996 my @deps = split (' ', $flat_deps);
6998 foreach (split (' ', $targets))
7000 # FIXME: 1. We are not robust to people defining several targets
7001 # at once, only some of them being in %dependencies. The
7002 # actions from the targets in %dependencies are usually generated
7003 # from the content of %actions, but if some targets in $targets
7004 # are not in %dependencies the ELSE branch will output
7005 # a rule for all $targets (i.e. the targets which are both
7006 # in %dependencies and $targets will have two rules).
7008 # FIXME: 2. The logic here is not able to output a
7009 # multi-paragraph rule several time (e.g. for each condition
7010 # it is defined for) because it only knows the first paragraph.
7012 # FIXME: 3. We are not robust to people defining a subset
7013 # of a previously defined "multiple-target" rule. E.g.
7014 # 'foo:' after 'foo bar:'.
7016 # Output only if not in FALSE.
7017 if (defined $dependencies{$_} && $cond != FALSE)
7019 &depend ($_, @deps);
7020 register_action ($_, $actions);
7024 # Free-lance dependency. Output the rule for all the
7025 # targets instead of one by one.
7026 my @undefined_conds =
7027 Automake::Rule::define ($targets, $file,
7028 $is_am ? RULE_AUTOMAKE : RULE_USER,
7030 for my $undefined_cond (@undefined_conds)
7032 my $condparagraph = $paragraph;
7033 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7034 $result_rules .= "$spacing$comment$condparagraph\n";
7036 if (scalar @undefined_conds == 0)
7038 # Remember to discard next paragraphs
7039 # if they belong to this rule.
7040 # (but see also FIXME: #2 above.)
7043 $comment = $spacing = '';
7049 elsif (/$ASSIGNMENT_PATTERN/mso)
7051 my ($var, $type, $val) = ($1, $2, $3);
7052 error $where, "variable '$var' with trailing backslash"
7057 Automake::Variable::define ($var,
7058 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7059 $type, $cond, $val, $comment, $where,
7063 $comment = $spacing = '';
7067 # This isn't an error; it is probably some tokens which
7068 # configure is supposed to replace, such as '@SET-MAKE@',
7069 # or some part of a rule cut by an if/endif.
7070 if (! $cond->false && ! ($is_rule && $discard_rule))
7072 s/^/$cond->subst_string/gme;
7073 $result_rules .= "$spacing$comment$_\n";
7075 $comment = $spacing = '';
7079 error ($where, @cond_stack ?
7080 "unterminated conditionals: @cond_stack" :
7081 "too many conditionals closed in include file")
7082 if "@saved_cond_stack" ne "@cond_stack";
7084 return ($comment, $result_vars, $result_rules);
7089 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7090 # ------------------------------------------------
7091 # Return contents of a file from $libdir/am, automatically skipping
7092 # macros or rules which are already known.
7093 sub file_contents ($$%)
7095 my ($basename, $where, %transform) = @_;
7096 my ($comments, $variables, $rules) =
7097 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7099 return "$comments$variables$rules";
7104 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7105 # -----------------------------------------------------
7106 # Find all variable prefixes that are used for install directories. A
7107 # prefix 'zar' qualifies iff:
7109 # * 'zardir' is a variable.
7110 # * 'zar_PRIMARY' is a variable.
7112 # As a side effect, it looks for misspellings. It is an error to have
7113 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7114 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7115 # of the same name (with "dir" appended) exists. For instance, if the
7116 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7117 # This is to provide a little extra flexibility in those cases which
7119 sub am_primary_prefixes ($$@)
7121 my ($primary, $can_dist, @prefixes) = @_;
7124 my %valid = map { $_ => 0 } @prefixes;
7125 $valid{'EXTRA'} = 0;
7126 foreach my $var (variables $primary)
7128 # Automake is allowed to define variables that look like primaries
7129 # but which aren't. E.g. INSTALL_sh_DATA.
7130 # Autoconf can also define variables like INSTALL_DATA, so
7131 # ignore all configure variables (at least those which are not
7132 # redefined in Makefile.am).
7133 # FIXME: We should make sure that these variables are not
7134 # conditionally defined (or else adjust the condition below).
7135 my $def = $var->def (TRUE);
7136 next if $def && $def->owner != VAR_MAKEFILE;
7138 my $varname = $var->name;
7140 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7142 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7143 if ($dist ne '' && ! $can_dist)
7146 "invalid variable '$varname': 'dist' is forbidden");
7148 # Standard directories must be explicitly allowed.
7149 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7152 "'${X}dir' is not a legitimate directory " .
7155 # A not explicitly valid directory is allowed if Xdir is defined.
7156 elsif (! defined $valid{$X} &&
7157 $var->requires_variables ("'$varname' is used", "${X}dir"))
7159 # Nothing to do. Any error message has been output
7160 # by $var->requires_variables.
7164 # Ensure all extended prefixes are actually used.
7165 $valid{"$base$dist$X"} = 1;
7170 prog_error "unexpected variable name: $varname";
7174 # Return only those which are actually defined.
7175 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7179 # Handle 'where_HOW' variable magic. Does all lookups, generates
7180 # install code, and possibly generates code to define the primary
7181 # variable. The first argument is the name of the .am file to munge,
7182 # the second argument is the primary variable (e.g. HEADERS), and all
7183 # subsequent arguments are possible installation locations.
7185 # Returns list of [$location, $value] pairs, where
7186 # $value's are the values in all where_HOW variable, and $location
7187 # there associated location (the place here their parent variables were
7190 # FIXME: this should be rewritten to be cleaner. It should be broken
7191 # up into multiple functions.
7193 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7200 my $default_dist = 0;
7203 if ($args[0] eq '-noextra')
7207 elsif ($args[0] eq '-candist')
7211 elsif ($args[0] eq '-defaultdist')
7216 elsif ($args[0] !~ /^-/)
7223 my ($file, $primary, @prefix) = @args;
7225 # Now that configure substitutions are allowed in where_HOW
7226 # variables, it is an error to actually define the primary. We
7227 # allow 'JAVA', as it is customarily used to mean the Java
7228 # interpreter. This is but one of several Java hacks. Similarly,
7229 # 'PYTHON' is customarily used to mean the Python interpreter.
7230 reject_var $primary, "'$primary' is an anachronism"
7231 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7233 # Get the prefixes which are valid and actually used.
7234 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7236 # If a primary includes a configure substitution, then the EXTRA_
7237 # form is required. Otherwise we can't properly do our job.
7243 foreach my $X (@prefix)
7245 my $nodir_name = $X;
7246 my $one_name = $X . '_' . $primary;
7247 my $one_var = var $one_name;
7249 my $strip_subdir = 1;
7250 # If subdir prefix should be preserved, do so.
7251 if ($nodir_name =~ /^nobase_/)
7254 $nodir_name =~ s/^nobase_//;
7257 # If files should be distributed, do so.
7261 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7262 || (! $default_dist && $nodir_name =~ /^dist_/));
7263 $nodir_name =~ s/^(dist|nodist)_//;
7267 # Use the location of the currently processed variable.
7268 # We are not processing a particular condition, so pick the first
7270 my $tmpcond = $one_var->conditions->one_cond;
7271 my $where = $one_var->rdef ($tmpcond)->location->clone;
7273 # Append actual contents of where_PRIMARY variable to
7274 # @result, skipping @substitutions@.
7275 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7277 my ($loc, $value) = @$locvals;
7278 # Skip configure substitutions.
7279 if ($value =~ /^\@.*\@$/)
7281 if ($nodir_name eq 'EXTRA')
7284 "'$one_name' contains configure substitution, "
7287 # Check here to make sure variables defined in
7288 # configure.ac do not imply that EXTRA_PRIMARY
7290 elsif (! defined $configure_vars{$one_name})
7292 $require_extra = $one_name
7298 # Strip any $(EXEEXT) suffix the user might have added, or this
7299 # will confuse &handle_source_transform and &check_canonical_spelling.
7300 # We'll add $(EXEEXT) back later anyway.
7301 # Do it here rather than in handle_programs so the uniquifying at the
7302 # end of this function works.
7303 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7304 if $primary eq 'PROGRAMS';
7306 push (@result, $locvals);
7309 # A blatant hack: we rewrite each _PROGRAMS primary to include
7311 append_exeext { 1 } $one_name
7312 if $primary eq 'PROGRAMS';
7313 # "EXTRA" shouldn't be used when generating clean targets,
7314 # all, or install targets. We used to warn if EXTRA_FOO was
7315 # defined uselessly, but this was annoying.
7317 if $nodir_name eq 'EXTRA';
7319 if ($nodir_name eq 'check')
7321 push (@check, '$(' . $one_name . ')');
7325 push (@used, '$(' . $one_name . ')');
7328 # Is this to be installed?
7329 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7331 # If so, with install-exec? (or install-data?).
7332 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7334 my $check_options_p = $install_p && !! option 'std-options';
7336 # Use the location of the currently processed variable as context.
7337 $where->push_context ("while processing '$one_name'");
7339 # The variable containing all files to distribute.
7340 my $distvar = "\$($one_name)";
7341 $distvar = shadow_unconditionally ($one_name, $where)
7342 if ($dist_p && $one_var->has_conditional_contents);
7344 # Singular form of $PRIMARY.
7345 (my $one_primary = $primary) =~ s/S$//;
7346 $output_rules .= &file_contents ($file, $where,
7347 PRIMARY => $primary,
7348 ONE_PRIMARY => $one_primary,
7350 NDIR => $nodir_name,
7351 BASE => $strip_subdir,
7354 INSTALL => $install_p,
7356 DISTVAR => $distvar,
7357 'CK-OPTS' => $check_options_p);
7360 # The JAVA variable is used as the name of the Java interpreter.
7361 # The PYTHON variable is used as the name of the Python interpreter.
7362 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7365 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7366 $output_vars .= "\n";
7369 err_var ($require_extra,
7370 "'$require_extra' contains configure substitution,\n"
7371 . "but 'EXTRA_$primary' not defined")
7372 if ($require_extra && ! var ('EXTRA_' . $primary));
7374 # Push here because PRIMARY might be configure time determined.
7375 push (@all, '$(' . $primary . ')')
7376 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7378 # Make the result unique. This lets the user use conditionals in
7379 # a natural way, but still lets us program lazily -- we don't have
7380 # to worry about handling a particular object more than once.
7381 # We will keep only one location per object.
7383 for my $pair (@result)
7385 my ($loc, $val) = @$pair;
7386 $result{$val} = $loc;
7388 my @l = sort keys %result;
7389 return map { [$result{$_}->clone, $_] } @l;
7393 ################################################################
7395 # Each key in this hash is the name of a directory holding a
7396 # Makefile.in. These variables are local to 'is_make_dir'.
7398 my $make_dirs_set = 0;
7403 if (! $make_dirs_set)
7405 foreach my $iter (@configure_input_files)
7407 $make_dirs{dirname ($iter)} = 1;
7409 # We also want to notice Makefile.in's.
7410 foreach my $iter (@other_input_files)
7412 if ($iter =~ /Makefile\.in$/)
7414 $make_dirs{dirname ($iter)} = 1;
7419 return defined $make_dirs{$dir};
7422 ################################################################
7424 # Find the aux dir. This should match the algorithm used by
7425 # ./configure. (See the Autoconf documentation for for
7426 # AC_CONFIG_AUX_DIR.)
7427 sub locate_aux_dir ()
7429 if (! $config_aux_dir_set_in_configure_ac)
7431 # The default auxiliary directory is the first
7432 # of ., .., or ../.. that contains install-sh.
7433 # Assume . if install-sh doesn't exist yet.
7434 for my $dir (qw (. .. ../..))
7436 if (-f "$dir/install-sh")
7438 $config_aux_dir = $dir;
7442 $config_aux_dir = '.' unless $config_aux_dir;
7444 # Avoid unsightly '/.'s.
7445 $am_config_aux_dir =
7446 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7447 $am_config_aux_dir =~ s,/*$,,;
7451 # &push_required_file ($DIR, $FILE, $FULLFILE)
7452 # --------------------------------------------------
7453 # Push the given file onto DIST_COMMON.
7454 sub push_required_file
7456 my ($dir, $file, $fullfile) = @_;
7458 # If the file to be distributed is in the same directory of the
7459 # currently processed Makefile.am, then we want to distribute it
7460 # from this same Makefile.am.
7461 if ($dir eq $relative_dir)
7463 push_dist_common ($file);
7465 # This is needed to allow a construct in a non-top-level Makefile.am
7466 # to require a file in the build-aux directory (see at least the test
7467 # script 'test-driver-is-distributed.test'). This is related to the
7468 # automake bug#9546. Note that the use of $config_aux_dir instead
7469 # of $am_config_aux_dir here is deliberate and necessary.
7470 elsif ($dir eq $config_aux_dir)
7472 push_dist_common ("$am_config_aux_dir/$file");
7474 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7475 # We probably need some refactoring of this function and its callers,
7476 # to have a more explicit and systematic handling of all the special
7477 # cases; but, since there are only two of them, this is low-priority
7479 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7481 # Avoid unsightly '/.'s.
7482 my $am_config_libobj_dir =
7484 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7485 $am_config_libobj_dir =~ s|/*$||;
7486 push_dist_common ("$am_config_libobj_dir/$file");
7488 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7490 # If we are doing the topmost directory, and the file is in a
7491 # subdir which does not have a Makefile, then we distribute it
7494 # If a required file is above the source tree, it is important
7495 # to prefix it with '$(srcdir)' so that no VPATH search is
7496 # performed. Otherwise problems occur with Make implementations
7497 # that rewrite and simplify rules whose dependencies are found in a
7498 # VPATH location. Here is an example with OSF1/Tru64 Make.
7510 # Dependency '../a' was found in 'sub/../a', but this make
7511 # implementation simplified it as 'a'. (Note that the sub/
7512 # directory does not even exist.)
7514 # This kind of VPATH rewriting seems hard to cancel. The
7515 # distdir.am hack against VPATH rewriting works only when no
7516 # simplification is done, i.e., for dependencies which are in
7517 # subdirectories, not in enclosing directories. Hence, in
7518 # the latter case we use a full path to make sure no VPATH
7520 $fullfile = '$(srcdir)/' . $fullfile
7521 if $dir =~ m,^\.\.(?:$|/),;
7523 push_dist_common ($fullfile);
7527 prog_error "a Makefile in relative directory $relative_dir " .
7528 "can't add files in directory $dir to DIST_COMMON";
7533 # If a file name appears as a key in this hash, then it has already
7534 # been checked for. This allows us not to report the same error more
7536 my %required_file_not_found = ();
7538 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7539 # --------------------------------------------------------
7540 # Verify that the file must exist in $DIRECTORY, or install it.
7541 sub required_file_check_or_copy ($$$)
7543 my ($where, $dir, $file) = @_;
7545 my $fullfile = "$dir/$file";
7547 my $dangling_sym = 0;
7549 if (-l $fullfile && ! -f $fullfile)
7553 elsif (dir_has_case_matching_file ($dir, $file))
7558 # '--force-missing' only has an effect if '--add-missing' is
7561 if $found_it && (! $add_missing || ! $force_missing);
7563 # If we've already looked for it, we're done. You might
7564 # wonder why we don't do this before searching for the
7565 # file. If we do that, then something like
7566 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7570 return if defined $required_file_not_found{$fullfile};
7571 $required_file_not_found{$fullfile} = 1;
7573 if ($dangling_sym && $add_missing)
7582 # Only install missing files according to our desired
7584 my $message = "required file '$fullfile' not found";
7587 if (-f "$libdir/$file")
7591 # Install the missing file. Symlink if we
7592 # can, copy if we must. Note: delete the file
7593 # first, in case it is a dangling symlink.
7594 $message = "installing '$fullfile'";
7596 # The license file should not be volatile.
7597 if ($file eq "COPYING")
7599 $message .= " using GNU General Public License v3 file";
7600 $trailer2 = "\n Consider adding the COPYING file"
7601 . " to the version control system"
7602 . "\n for your code, to avoid questions"
7603 . " about which license your project uses";
7606 # Windows Perl will hang if we try to delete a
7607 # file that doesn't exist.
7608 unlink ($fullfile) if -f $fullfile;
7609 if ($symlink_exists && ! $copy_missing)
7611 if (! symlink ("$libdir/$file", $fullfile)
7615 $trailer = "; error while making link: $!";
7618 elsif (system ('cp', "$libdir/$file", $fullfile))
7621 $trailer = "\n error while copying";
7623 set_dir_cache_file ($dir, $file);
7628 $trailer = "\n 'automake --add-missing' can install '$file'"
7629 if -f "$libdir/$file";
7632 # If --force-missing was specified, and we have
7633 # actually found the file, then do nothing.
7635 if $found_it && $force_missing;
7637 # If we couldn't install the file, but it is a target in
7638 # the Makefile, don't print anything. This allows files
7639 # like README, AUTHORS, or THANKS to be generated.
7641 if !$suppress && rule $file;
7643 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7647 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7648 # ----------------------------------------------------------------------
7649 # Verify that the file must exist in $DIRECTORY, or install it.
7650 # $MYSTRICT is the strictness level at which this file becomes required.
7651 # Worker threads may queue up the action to be serialized by the master,
7653 sub require_file_internal ($$$@)
7655 my ($where, $mystrict, $dir, $queue, @files) = @_;
7658 unless $strictness >= $mystrict;
7660 foreach my $file (@files)
7662 push_required_file ($dir, $file, "$dir/$file");
7665 queue_required_file_check_or_copy ($required_conf_file_queue,
7666 QUEUE_CONF_FILE, $relative_dir,
7667 $where, $mystrict, @files);
7671 required_file_check_or_copy ($where, $dir, $file);
7676 # &require_file ($WHERE, $MYSTRICT, @FILES)
7677 # -----------------------------------------
7678 sub require_file ($$@)
7680 my ($where, $mystrict, @files) = @_;
7681 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7684 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7685 # -----------------------------------------------------------
7686 sub require_file_with_macro ($$$@)
7688 my ($cond, $macro, $mystrict, @files) = @_;
7689 $macro = rvar ($macro) unless ref $macro;
7690 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7693 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7694 # ----------------------------------------------------------------
7695 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7696 # must be in that directory. Otherwise expect it in the current directory.
7697 sub require_libsource_with_macro ($$$@)
7699 my ($cond, $macro, $mystrict, @files) = @_;
7700 $macro = rvar ($macro) unless ref $macro;
7701 if ($config_libobj_dir)
7703 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7704 $config_libobj_dir, 0, @files);
7708 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7712 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7713 # $MYSTRICT, @FILES)
7714 # ---------------------------------------------------------------
7715 sub queue_required_file_check_or_copy ($$$$@)
7717 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7721 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7725 @serial_loc = (QUEUE_STRING, $where);
7727 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7730 # &require_queued_file_check_or_copy ($QUEUE)
7731 # -------------------------------------------
7732 sub require_queued_file_check_or_copy ($)
7736 my $dir = $queue->dequeue ();
7737 my $loc_key = $queue->dequeue ();
7738 if ($loc_key eq QUEUE_LOCATION)
7740 $where = Automake::Location::deserialize ($queue);
7742 elsif ($loc_key eq QUEUE_STRING)
7744 $where = $queue->dequeue ();
7748 prog_error "unexpected key $loc_key";
7750 my $mystrict = $queue->dequeue ();
7751 my $nfiles = $queue->dequeue ();
7753 push @files, $queue->dequeue ()
7754 foreach (1 .. $nfiles);
7756 unless $strictness >= $mystrict;
7757 foreach my $file (@files)
7759 required_file_check_or_copy ($where, $config_aux_dir, $file);
7763 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7764 # ----------------------------------------------
7765 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7766 sub require_conf_file ($$@)
7768 my ($where, $mystrict, @files) = @_;
7769 my $queue = defined $required_conf_file_queue ? 1 : 0;
7770 require_file_internal ($where, $mystrict, $config_aux_dir,
7775 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7776 # ----------------------------------------------------------------
7777 sub require_conf_file_with_macro ($$$@)
7779 my ($cond, $macro, $mystrict, @files) = @_;
7780 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7784 ################################################################
7786 # &require_build_directory ($DIRECTORY)
7787 # -------------------------------------
7788 # Emit rules to create $DIRECTORY if needed, and return
7789 # the file that any target requiring this directory should be made
7791 # We don't want to emit the rule twice, and want to reuse it
7792 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7793 sub require_build_directory ($)
7795 my $directory = shift;
7797 return $directory_map{$directory} if exists $directory_map{$directory};
7799 my $cdir = File::Spec->canonpath ($directory);
7801 if (exists $directory_map{$cdir})
7803 my $stamp = $directory_map{$cdir};
7804 $directory_map{$directory} = $stamp;
7808 my $dirstamp = "$cdir/\$(am__dirstamp)";
7810 $directory_map{$directory} = $dirstamp;
7811 $directory_map{$cdir} = $dirstamp;
7813 # Set a variable for the dirstamp basename.
7814 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7815 '$(am__leading_dot)dirstamp');
7817 # Directory must be removed by 'make distclean'.
7818 $clean_files{$dirstamp} = DIST_CLEAN;
7820 $output_rules .= ("$dirstamp:\n"
7821 . "\t\@\$(MKDIR_P) $directory\n"
7822 . "\t\@: > $dirstamp\n");
7827 # &require_build_directory_maybe ($FILE)
7828 # --------------------------------------
7829 # If $FILE lies in a subdirectory, emit a rule to create this
7830 # directory and return the file that $FILE should be made
7831 # dependent upon. Otherwise, just return the empty string.
7832 sub require_build_directory_maybe ($)
7835 my $directory = dirname ($file);
7837 if ($directory ne '.')
7839 return require_build_directory ($directory);
7847 ################################################################
7849 # Push a list of files onto dist_common.
7850 sub push_dist_common
7852 prog_error "push_dist_common run after handle_dist"
7853 if $handle_dist_run;
7854 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7855 '', INTERNAL, VAR_PRETTY);
7859 ################################################################
7861 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7862 # ----------------------------------------------
7863 # Generate a Makefile.in given the name of the corresponding Makefile and
7864 # the name of the file output by config.status.
7865 sub generate_makefile ($$)
7867 my ($makefile_am, $makefile_in) = @_;
7869 # Reset all the Makefile.am related variables.
7870 initialize_per_input;
7872 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7873 # warnings for this file. So hold any warning issued before
7874 # we have processed AUTOMAKE_OPTIONS.
7875 buffer_messages ('warning');
7877 # $OUTPUT is encoded. If it contains a ":" then the first element
7878 # is the real output file, and all remaining elements are input
7879 # files. We don't scan or otherwise deal with these input files,
7880 # other than to mark them as dependencies. See
7881 # &scan_autoconf_files for details.
7882 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7884 $relative_dir = dirname ($makefile);
7886 read_main_am_file ($makefile_am, $makefile_in);
7889 # Process buffered warnings.
7891 # Fatal error. Just return, so we can continue with next file.
7894 # Process buffered warnings.
7897 # There are a few install-related variables that you should not define.
7898 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7903 my $def = $v->def (TRUE);
7904 prog_error "$var not defined in condition TRUE"
7906 reject_var $var, "'$var' should not be defined"
7907 if $def->owner != VAR_AUTOMAKE;
7911 # Catch some obsolete variables.
7912 msg_var ('obsolete', 'INCLUDES',
7913 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7914 if var ('INCLUDES');
7916 # Must do this after reading .am file.
7917 define_variable ('subdir', $relative_dir, INTERNAL);
7919 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7920 # recursive rules are enabled.
7921 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7922 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7924 # Check first, because we might modify some state.
7925 check_gnu_standards;
7926 check_gnits_standards;
7928 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7937 # These must be run after all the sources are scanned. They
7938 # use variables defined by &handle_libraries, &handle_ltlibraries,
7939 # or &handle_programs.
7944 # Variables used by distdir.am and tags.am.
7945 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7946 if (! option 'no-dist')
7948 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7959 handle_user_recursion;
7961 handle_minor_options;
7962 # Must come after handle_programs so that %known_programs is up-to-date.
7965 # This must come after most other rules.
7969 do_check_merge_target;
7970 handle_all ($makefile);
7973 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7975 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7977 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7979 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
7983 handle_clean ($makefile);
7984 handle_factored_dependencies;
7986 # Comes last, because all the above procedures may have
7987 # defined or overridden variables.
7988 $output_vars .= output_variables;
7992 if ($exit_code != 0)
7994 verb "not writing $makefile_in because of earlier errors";
7998 my $am_relative_dir = dirname ($makefile_am);
7999 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8001 # We make sure that 'all:' is the first target.
8003 "$output_vars$output_all$output_header$output_rules$output_trailer";
8005 # Decide whether we must update the output file or not.
8006 # We have to update in the following situations.
8007 # * $force_generation is set.
8008 # * any of the output dependencies is younger than the output
8009 # * the contents of the output is different (this can happen
8010 # if the project has been populated with a file listed in
8011 # @common_files since the last run).
8012 # Output's dependencies are split in two sets:
8013 # * dependencies which are also configure dependencies
8014 # These do not change between each Makefile.am
8015 # * other dependencies, specific to the Makefile.am being processed
8016 # (such as the Makefile.am itself, or any Makefile fragment
8018 my $timestamp = mtime $makefile_in;
8019 if (! $force_generation
8020 && $configure_deps_greatest_timestamp < $timestamp
8021 && $output_deps_greatest_timestamp < $timestamp
8022 && $output eq contents ($makefile_in))
8024 verb "$makefile_in unchanged";
8025 # No need to update.
8029 if (-e $makefile_in)
8031 unlink ($makefile_in)
8032 or fatal "cannot remove $makefile_in: $!";
8035 my $gm_file = new Automake::XFile "> $makefile_in";
8036 verb "creating $makefile_in";
8037 print $gm_file $output;
8040 ################################################################
8045 ################################################################
8047 # Helper function for usage().
8048 sub print_autodist_files (@)
8050 my @lcomm = sort (&uniq (@_));
8053 format USAGE_FORMAT =
8054 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8055 $four[0], $four[1], $four[2], $four[3]
8057 local $~ = "USAGE_FORMAT";
8060 my $rows = int(@lcomm / $cols);
8061 my $rest = @lcomm % $cols;
8072 for (my $y = 0; $y < $rows; $y++)
8074 @four = ("", "", "", "");
8075 for (my $x = 0; $x < $cols; $x++)
8077 last if $y + 1 == $rows && $x == $rest;
8079 my $idx = (($x > $rest)
8080 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8084 $four[$x] = $lcomm[$idx];
8091 # Print usage information.
8094 print "Usage: $0 [OPTION]... [Makefile]...
8096 Generate Makefile.in for configure from Makefile.am.
8099 --help print this help, then exit
8100 --version print version number, then exit
8101 -v, --verbose verbosely list files processed
8102 --no-force only update Makefile.in's that are out of date
8103 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8105 Dependency tracking:
8106 -i, --ignore-deps disable dependency tracking code
8107 --include-deps enable dependency tracking code
8110 --foreign set strictness to foreign
8111 --gnits set strictness to gnits
8112 --gnu set strictness to gnu
8115 -a, --add-missing add missing standard files to package
8116 --libdir=DIR set directory storing library files
8117 --print-libdir print directory storing library files
8118 -c, --copy with -a, copy missing files (default is symlink)
8119 -f, --force-missing force update of standard files
8122 Automake::ChannelDefs::usage;
8124 print "\nFiles automatically distributed if found " .
8126 print_autodist_files @common_files;
8127 print "\nFiles automatically distributed if found " .
8128 "(under certain conditions):\n";
8129 print_autodist_files @common_sometimes;
8132 Report bugs to <@PACKAGE_BUGREPORT@>.
8133 GNU Automake home page: <@PACKAGE_URL@>.
8134 General help using GNU software: <http://www.gnu.org/gethelp/>.
8137 # --help always returns 0 per GNU standards.
8144 # Print version information
8148 automake (GNU $PACKAGE) $VERSION
8149 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8150 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8151 This is free software: you are free to change and redistribute it.
8152 There is NO WARRANTY, to the extent permitted by law.
8154 Written by Tom Tromey <tromey\@redhat.com>
8155 and Alexandre Duret-Lutz <adl\@gnu.org>.
8157 # --version always returns 0 per GNU standards.
8161 ################################################################
8163 # Parse command line.
8164 sub parse_arguments ()
8167 my $ignore_deps = 0;
8172 'version' => \&version,
8174 'libdir=s' => \$libdir,
8175 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8176 'gnu' => sub { $strict = 'gnu'; },
8177 'gnits' => sub { $strict = 'gnits'; },
8178 'foreign' => sub { $strict = 'foreign'; },
8179 'include-deps' => sub { $ignore_deps = 0; },
8180 'i|ignore-deps' => sub { $ignore_deps = 1; },
8181 'no-force' => sub { $force_generation = 0; },
8182 'f|force-missing' => \$force_missing,
8183 'a|add-missing' => \$add_missing,
8184 'c|copy' => \$copy_missing,
8185 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8186 'W|warnings=s' => \@warnings,
8189 use Automake::Getopt ();
8190 Automake::Getopt::parse_options %cli_options;
8192 set_strictness ($strict);
8193 my $cli_where = new Automake::Location;
8194 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8195 for my $warning (@warnings)
8197 &parse_warnings ('-W', $warning);
8200 return unless @ARGV;
8203 foreach my $arg (@ARGV)
8205 fatal ("empty argument\nTry '$0 --help' for more information")
8208 # Handle $local:$input syntax.
8209 my ($local, @rest) = split (/:/, $arg);
8210 @rest = ("$local.in",) unless @rest;
8211 my $input = locate_am @rest;
8214 push @input_files, $input;
8215 $output_files{$input} = join (':', ($local, @rest));
8219 error "no Automake input file found for '$arg'";
8223 fatal "no input file found among supplied arguments"
8224 if $errspec && ! @input_files;
8228 # handle_makefile ($MAKEFILE_IN)
8229 # ------------------------------
8230 # Deal with $MAKEFILE_IN.
8231 sub handle_makefile ($)
8234 ($am_file = $file) =~ s/\.in$//;
8235 if (! -f ($am_file . '.am'))
8237 error "'$am_file.am' does not exist";
8241 # Any warning setting now local to this Makefile.am.
8244 generate_makefile ($am_file . '.am', $file);
8246 # Back out any warning setting.
8251 # handle_makefiles_serial ()
8252 # --------------------------
8253 # Deal with all makefiles, without threads.
8254 sub handle_makefiles_serial ()
8256 foreach my $file (@input_files)
8258 handle_makefile ($file);
8262 # get_number_of_threads ()
8263 # ------------------------
8264 # Logic for deciding how many worker threads to use.
8265 sub get_number_of_threads
8267 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8270 unless $nthreads =~ /^[0-9]+$/;
8272 # It doesn't make sense to use more threads than makefiles,
8273 my $max_threads = @input_files;
8275 if ($nthreads > $max_threads)
8277 $nthreads = $max_threads;
8282 # handle_makefiles_threaded ($NTHREADS)
8283 # -------------------------------------
8284 # Deal with all makefiles, using threads. The general strategy is to
8285 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8286 # worker threads push back everything that needs serialization:
8287 # * warning and (normal) error messages, for stable stderr output
8288 # order and content (avoiding duplicates, for example),
8289 # * races when installing aux files (and respective messages),
8290 # * races when collecting aux files for distribution.
8292 # The latter requires that the makefile that deals with the aux dir
8293 # files be handled last, done by the master thread.
8294 sub handle_makefiles_threaded ($)
8296 my ($nthreads) = @_;
8298 # The file queue distributes all makefiles, the message queues
8299 # collect all serializations needed for respective files.
8300 my $file_queue = Thread::Queue->new;
8302 foreach my $file (@input_files)
8304 $msg_queues{$file} = Thread::Queue->new;
8307 verb "spawning $nthreads worker threads";
8308 my @threads = (1 .. $nthreads);
8309 foreach my $t (@threads)
8311 $t = threads->new (sub
8313 while (my $file = $file_queue->dequeue)
8315 verb "handling $file";
8316 my $queue = $msg_queues{$file};
8317 setup_channel_queue ($queue, QUEUE_MESSAGE);
8318 $required_conf_file_queue = $queue;
8319 handle_makefile ($file);
8320 $queue->enqueue (undef);
8321 setup_channel_queue (undef, undef);
8322 $required_conf_file_queue = undef;
8328 # Queue all makefiles.
8329 verb "queuing " . @input_files . " input files";
8330 $file_queue->enqueue (@input_files, (undef) x @threads);
8332 # Collect and process serializations.
8333 foreach my $file (@input_files)
8335 verb "dequeuing messages for " . $file;
8336 reset_local_duplicates ();
8337 my $queue = $msg_queues{$file};
8338 while (my $key = $queue->dequeue)
8340 if ($key eq QUEUE_MESSAGE)
8342 pop_channel_queue ($queue);
8344 elsif ($key eq QUEUE_CONF_FILE)
8346 require_queued_file_check_or_copy ($queue);
8350 prog_error "unexpected key $key";
8355 foreach my $t (@threads)
8357 my @exit_thread = $t->join;
8358 $exit_code = $exit_thread[0]
8359 if ($exit_thread[0] > $exit_code);
8363 ################################################################
8365 # Parse the WARNINGS environment variable.
8368 # Parse command line.
8371 $configure_ac = require_configure_ac;
8373 # Do configure.ac scan only once.
8374 scan_autoconf_files;
8379 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8380 if -f 'Makefile.am';
8381 fatal ("no 'Makefile.am' found for any configure output$msg");
8384 my $nthreads = get_number_of_threads ();
8386 if ($perl_threads && $nthreads >= 1)
8388 handle_makefiles_threaded ($nthreads);
8392 handle_makefiles_serial ();
8398 ### Setup "GNU" style for perl-mode and cperl-mode.
8400 ## perl-indent-level: 2
8401 ## perl-continued-statement-offset: 2
8402 ## perl-continued-brace-offset: 0
8403 ## perl-brace-offset: 0
8404 ## perl-brace-imaginary-offset: 0
8405 ## perl-label-offset: -2
8406 ## cperl-indent-level: 2
8407 ## cperl-brace-offset: 0
8408 ## cperl-continued-brace-offset: 0
8409 ## cperl-label-offset: -2
8410 ## cperl-extra-newline-before-brace: t
8411 ## cperl-merge-trailing-else: nil
8412 ## cperl-continued-statement-offset: 2