| blob | 713a4b7702dd12da756598c3898ada047ea9deab |
1 #!@PERL@ -w
2 # -*- perl -*-
3 # @configure_input@
5 eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
6 if 0;
8 # automake - create Makefile.in from Makefile.am
9 # Copyright (C) 1994-2018 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)
14 # any later version.
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 <https://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>.
28 package Automake;
30 use strict;
32 BEGIN
33 {
34 unshift (@INC, '@datadir@/@PACKAGE@-@APIVERSION@')
35 unless $ENV{AUTOMAKE_UNINSTALLED};
37 # Override SHELL. This is required on DJGPP so that system() uses
38 # bash, not COMMAND.COM which doesn't quote arguments properly.
39 # Other systems aren't expected to use $SHELL when Automake
40 # runs, but it should be safe to drop the "if DJGPP" guard if
41 # it turns up other systems need the same thing. After all,
42 # if SHELL is used, ./configure's SHELL is always better than
43 # the user's SHELL (which may be something like tcsh).
44 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
45 }
47 use Automake::Config;
48 BEGIN
49 {
50 if ($perl_threads)
51 {
52 require threads;
53 import threads;
54 require Thread::Queue;
55 import Thread::Queue;
56 }
57 }
58 use Automake::General;
59 use Automake::XFile;
60 use Automake::Channels;
61 use Automake::ChannelDefs;
62 use Automake::Configure_ac;
63 use Automake::FileUtils;
64 use Automake::Location;
65 use Automake::Condition qw/TRUE FALSE/;
66 use Automake::DisjConditions;
67 use Automake::Options;
68 use Automake::Variable;
69 use Automake::VarDef;
70 use Automake::Rule;
71 use Automake::RuleDef;
72 use Automake::Wrap 'makefile_wrap';
73 use Automake::Language;
74 use File::Basename;
75 use File::Spec;
76 use List::Util 'none';
77 use Carp;
79 ## ----------------------- ##
80 ## Subroutine prototypes. ##
81 ## ----------------------- ##
83 sub append_exeext (&$);
84 sub check_gnits_standards ();
85 sub check_gnu_standards ();
86 sub check_trailing_slash ($\$);
87 sub check_typos ();
88 sub define_files_variable ($\@$$);
89 sub define_standard_variables ();
90 sub define_verbose_libtool ();
91 sub define_verbose_texinfo ();
92 sub do_check_merge_target ();
93 sub get_number_of_threads ();
94 sub handle_compile ();
95 sub handle_data ();
96 sub handle_dist ();
97 sub handle_emacs_lisp ();
98 sub handle_factored_dependencies ();
99 sub handle_footer ();
100 sub handle_gettext ();
101 sub handle_headers ();
102 sub handle_install ();
103 sub handle_java ();
104 sub handle_languages ();
105 sub handle_libraries ();
106 sub handle_libtool ();
107 sub handle_ltlibraries ();
108 sub handle_makefiles_serial ();
109 sub handle_man_pages ();
110 sub handle_minor_options ();
111 sub handle_options ();
112 sub handle_programs ();
113 sub handle_python ();
114 sub handle_scripts ();
115 sub handle_silent ();
116 sub handle_subdirs ();
117 sub handle_tags ();
118 sub handle_targets ();
119 sub handle_tests ();
120 sub handle_tests_dejagnu ();
121 sub handle_texinfo ();
122 sub handle_user_recursion ();
123 sub initialize_per_input ();
124 sub lang_lex_finish ();
125 sub lang_sub_obj ();
126 sub lang_vala_finish ();
127 sub lang_yacc_finish ();
128 sub locate_aux_dir ();
129 sub parse_arguments ();
130 sub scan_aclocal_m4 ();
131 sub scan_autoconf_files ();
132 sub silent_flag ();
133 sub transform ($\%);
134 sub transform_token ($\%$);
135 sub usage ();
136 sub version ();
137 sub yacc_lex_finish_helper ();
139 ## ----------- ##
140 ## Constants. ##
141 ## ----------- ##
143 # Some regular expressions. One reason to put them here is that it
144 # makes indentation work better in Emacs.
146 # Writing singled-quoted-$-terminated regexes is a pain because
147 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
148 # by a closing quote. Letting perl-mode think the quote is not closed
149 # leads to all sort of misindentations. On the other hand, defining
150 # regexes as double-quoted strings is far less readable. So usually
151 # we will write:
152 #
153 # $REGEX = '^regex_value' . "\$";
155 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
156 my $WHITE_PATTERN = '^\s*' . "\$";
157 my $COMMENT_PATTERN = '^#';
158 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
159 # A rule has three parts: a list of targets, a list of dependencies,
160 # and optionally actions.
161 my $RULE_PATTERN =
162 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
164 # Only recognize leading spaces, not leading tabs. If we recognize
165 # leading tabs here then we need to make the reader smarter, because
166 # otherwise it will think rules like 'foo=bar; \' are errors.
167 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
168 # This pattern recognizes a Gnits version id and sets $1 if the
169 # release is an alpha release. We also allow a suffix which can be
170 # used to extend the version number with a "fork" identifier.
171 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
173 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
174 my $ELSE_PATTERN =
175 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
176 my $ENDIF_PATTERN =
177 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
178 my $PATH_PATTERN = '(\w|[+/.-])+';
179 # This will pass through anything not of the prescribed form.
180 my $INCLUDE_PATTERN = ('^include\s+'
181 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
182 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
183 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
185 # Directories installed during 'install-exec' phase.
186 my $EXEC_DIR_PATTERN =
187 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
189 # Values for AC_CANONICAL_*
190 use constant AC_CANONICAL_BUILD => 1;
191 use constant AC_CANONICAL_HOST => 2;
192 use constant AC_CANONICAL_TARGET => 3;
194 # Values indicating when something should be cleaned.
195 use constant MOSTLY_CLEAN => 0;
196 use constant CLEAN => 1;
197 use constant DIST_CLEAN => 2;
198 use constant MAINTAINER_CLEAN => 3;
200 # Libtool files.
201 my @libtool_files = qw(ltmain.sh config.guess config.sub);
202 # ltconfig appears here for compatibility with old versions of libtool.
203 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
205 # Commonly found files we look for and automatically include in
206 # DISTFILES.
207 my @common_files =
208 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
209 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
210 ar-lib compile config.guess config.rpath
211 config.sub depcomp install-sh libversion.in mdate-sh
212 missing mkinstalldirs py-compile texinfo.tex ylwrap),
213 @libtool_files, @libtool_sometimes);
215 # Commonly used files we auto-include, but only sometimes. This list
216 # is used for the --help output only.
217 my @common_sometimes =
218 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
219 configure.ac configure.in stamp-vti);
221 # Standard directories from the GNU Coding Standards, and additional
222 # pkg* directories from Automake. Stored in a hash for fast member check.
223 my %standard_prefix =
224 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
225 lib libexec lisp locale localstate man man1 man2
226 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
227 pkgdata pkginclude pkglib pkglibexec ps sbin
228 sharedstate sysconf));
230 # Copyright on generated Makefile.ins.
231 my $gen_copyright = "\
232 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
234 # This Makefile.in is free software; the Free Software Foundation
235 # gives unlimited permission to copy and/or distribute it,
236 # with or without modifications, as long as this notice is preserved.
238 # This program is distributed in the hope that it will be useful,
239 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
240 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
241 # PARTICULAR PURPOSE.
242 ";
244 # These constants are returned by the lang_*_rewrite functions.
245 # LANG_SUBDIR means that the resulting object file should be in a
246 # subdir if the source file is. In this case the file name cannot
247 # have '..' components.
248 use constant LANG_IGNORE => 0;
249 use constant LANG_PROCESS => 1;
250 use constant LANG_SUBDIR => 2;
252 # These are used when keeping track of whether an object can be built
253 # by two different paths.
254 use constant COMPILE_LIBTOOL => 1;
255 use constant COMPILE_ORDINARY => 2;
257 # We can't always associate a location to a variable or a rule,
258 # when it's defined by Automake. We use INTERNAL in this case.
259 use constant INTERNAL => new Automake::Location;
261 # Serialization keys for message queues.
262 use constant QUEUE_MESSAGE => "msg";
263 use constant QUEUE_CONF_FILE => "conf file";
264 use constant QUEUE_LOCATION => "location";
265 use constant QUEUE_STRING => "string";
267 ## ---------------------------------- ##
268 ## Variables related to the options. ##
269 ## ---------------------------------- ##
271 # TRUE if we should always generate Makefile.in.
272 my $force_generation = 1;
274 # From the Perl manual.
275 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
277 # TRUE if missing standard files should be installed.
278 my $add_missing = 0;
280 # TRUE if we should copy missing files; otherwise symlink if possible.
281 my $copy_missing = 0;
283 # TRUE if we should always update files that we know about.
284 my $force_missing = 0;
287 ## ---------------------------------------- ##
288 ## Variables filled during files scanning. ##
289 ## ---------------------------------------- ##
291 # Name of the configure.ac file.
292 my $configure_ac;
294 # Files found by scanning configure.ac for LIBOBJS.
295 my %libsources = ();
297 # Names used in AC_CONFIG_HEADERS call.
298 my @config_headers = ();
300 # Names used in AC_CONFIG_LINKS call.
301 my @config_links = ();
303 # List of Makefile.am's to process, and their corresponding outputs.
304 my @input_files = ();
305 my %output_files = ();
307 # Complete list of Makefile.am's that exist.
308 my @configure_input_files = ();
310 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
311 # and their outputs.
312 my @other_input_files = ();
313 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADERS
314 # appears. The keys are the files created by these macros.
315 my %ac_config_files_location = ();
316 # The condition under which AC_CONFIG_FOOS appears.
317 my %ac_config_files_condition = ();
319 # Directory to search for configure-required files. This
320 # will be computed by locate_aux_dir() and can be set using
321 # AC_CONFIG_AUX_DIR in configure.ac.
322 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
323 my $config_aux_dir = '';
324 my $config_aux_dir_set_in_configure_ac = 0;
325 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
326 # in Makefiles.
327 my $am_config_aux_dir = '';
329 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
330 # in configure.ac.
331 my $config_libobj_dir = '';
333 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
334 my $seen_gettext = 0;
335 # Whether AM_GNU_GETTEXT([external]) is used.
336 my $seen_gettext_external = 0;
337 # Where AM_GNU_GETTEXT appears.
338 my $ac_gettext_location;
339 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
340 my $seen_gettext_intl = 0;
342 # The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
343 my @extra_recursive_targets = ();
345 # Lists of tags supported by Libtool.
346 my %libtool_tags = ();
347 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
348 # uses AC_REQUIRE_AUX_FILE.
349 my $libtool_new_api = 0;
351 # Most important AC_CANONICAL_* macro seen so far.
352 my $seen_canonical = 0;
354 # Where AM_MAINTAINER_MODE appears.
355 my $seen_maint_mode;
357 # Actual version we've seen.
358 my $package_version = '';
360 # Where version is defined.
361 my $package_version_location;
363 # TRUE if we've seen AM_PROG_AR
364 my $seen_ar = 0;
366 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
367 my %required_aux_file = ();
369 # Where AM_INIT_AUTOMAKE is called.
370 my $seen_init_automake = 0;
372 # TRUE if we've seen AM_AUTOMAKE_VERSION.
373 my $seen_automake_version = 0;
375 # Hash table of discovered configure substitutions. Keys are names,
376 # values are 'FILE:LINE' strings which are used by error message
377 # generation.
378 my %configure_vars = ();
380 # Ignored configure substitutions (i.e., variables not to be output in
381 # Makefile.in)
382 my %ignored_configure_vars = ();
384 # Files included by $configure_ac.
385 my @configure_deps = ();
387 # Greatest timestamp of configure's dependencies.
388 my $configure_deps_greatest_timestamp = 0;
390 # Hash table of AM_CONDITIONAL variables seen in configure.
391 my %configure_cond = ();
393 # This maps extensions onto language names.
394 my %extension_map = ();
396 # List of the DIST_COMMON files we discovered while reading
397 # configure.ac.
398 my @configure_dist_common = ();
400 # This maps languages names onto objects.
401 my %languages = ();
402 # Maps each linker variable onto a language object.
403 my %link_languages = ();
405 # maps extensions to needed source flags.
406 my %sourceflags = ();
408 # List of targets we must always output.
409 # FIXME: Complete, and remove falsely required targets.
410 my %required_targets =
411 (
412 'all' => 1,
413 'dvi' => 1,
414 'pdf' => 1,
415 'ps' => 1,
416 'info' => 1,
417 'install-info' => 1,
418 'install' => 1,
419 'install-data' => 1,
420 'install-exec' => 1,
421 'uninstall' => 1,
423 # FIXME: Not required, temporary hacks.
424 # Well, actually they are sort of required: the -recursive
425 # targets will run them anyway...
426 'html-am' => 1,
427 'dvi-am' => 1,
428 'pdf-am' => 1,
429 'ps-am' => 1,
430 'info-am' => 1,
431 'install-data-am' => 1,
432 'install-exec-am' => 1,
433 'install-html-am' => 1,
434 'install-dvi-am' => 1,
435 'install-pdf-am' => 1,
436 'install-ps-am' => 1,
437 'install-info-am' => 1,
438 'installcheck-am' => 1,
439 'uninstall-am' => 1,
440 'tags-am' => 1,
441 'ctags-am' => 1,
442 'cscopelist-am' => 1,
443 'install-man' => 1,
444 );
446 # Queue to push require_conf_file requirements to.
447 my $required_conf_file_queue;
449 # The name of the Makefile currently being processed.
450 my $am_file = 'BUG';
452 ################################################################
454 ## ------------------------------------------ ##
455 ## Variables reset by &initialize_per_input. ##
456 ## ------------------------------------------ ##
458 # Relative dir of the output makefile.
459 my $relative_dir;
461 # Greatest timestamp of the output's dependencies (excluding
462 # configure's dependencies).
463 my $output_deps_greatest_timestamp;
465 # These variables are used when generating each Makefile.in.
466 # They hold the Makefile.in until it is ready to be printed.
467 my $output_vars;
468 my $output_all;
469 my $output_header;
470 my $output_rules;
471 my $output_trailer;
473 # This is the conditional stack, updated on if/else/endif, and
474 # used to build Condition objects.
475 my @cond_stack;
477 # This holds the set of included files.
478 my @include_stack;
480 # List of dependencies for the obvious targets.
481 my @all;
482 my @check;
483 my @check_tests;
485 # Keys in this hash table are files to delete. The associated
486 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
487 my %clean_files;
489 # Keys in this hash table are object files or other files in
490 # subdirectories which need to be removed. This only holds files
491 # which are created by compilations. The value in the hash indicates
492 # when the file should be removed.
493 my %compile_clean_files;
495 # Keys in this hash table are directories where we expect to build a
496 # libtool object. We use this information to decide what directories
497 # to delete.
498 my %libtool_clean_directories;
500 # Value of $(SOURCES), used by tags.am.
501 my @sources;
502 # Sources which go in the distribution.
503 my @dist_sources;
505 # This hash maps object file names onto their corresponding source
506 # file names. This is used to ensure that each object is created
507 # by a single source file.
508 my %object_map;
510 # This hash maps object file names onto an integer value representing
511 # whether this object has been built via ordinary compilation or
512 # libtool compilation (the COMPILE_* constants).
513 my %object_compilation_map;
516 # This keeps track of the directories for which we've already
517 # created dirstamp code. Keys are directories, values are stamp files.
518 # Several keys can share the same stamp files if they are equivalent
519 # (as are './/foo' and 'foo').
520 my %directory_map;
522 # All .P files.
523 my %dep_files;
525 # This is a list of all targets to run during "make dist".
526 my @dist_targets;
528 # List of all programs, libraries and ltlibraries as returned
529 # by am_install_var
530 my @proglist;
531 my @liblist;
532 my @ltliblist;
533 # Blacklist of targets (as canonical base name) for which object file names
534 # may not be automatically shortened
535 my @dup_shortnames;
537 # Keep track of all programs declared in this Makefile, without
538 # $(EXEEXT). @substitutions@ are not listed.
539 my %known_programs;
540 my %known_libraries;
542 # This keeps track of which extensions we've seen (that we care
543 # about).
544 my %extension_seen;
546 # This is random scratch space for the language finish functions.
547 # Don't randomly overwrite it; examine other uses of keys first.
548 my %language_scratch;
550 # We keep track of which objects need special (per-executable)
551 # handling on a per-language basis.
552 my %lang_specific_files;
554 # List of distributed files to be put in DIST_COMMON.
555 my @dist_common;
557 # This is set when 'handle_dist' has finished. Once this happens,
558 # we should no longer push on dist_common.
559 my $handle_dist_run;
561 # Used to store a set of linkers needed to generate the sources currently
562 # under consideration.
563 my %linkers_used;
565 # True if we need 'LINK' defined. This is a hack.
566 my $need_link;
568 # Does the generated Makefile have to build some compiled object
569 # (for binary programs, or plain or libtool libraries)?
570 my $must_handle_compiled_objects;
572 # Record each file processed by make_paragraphs.
573 my %transformed_files;
575 ################################################################
577 ## ---------------------------------------------- ##
578 ## Variables not reset by &initialize_per_input. ##
579 ## ---------------------------------------------- ##
581 # Cache each file processed by make_paragraphs.
582 # (This is different from %transformed_files because
583 # %transformed_files is reset for each file while %am_file_cache
584 # it global to the run.)
585 my %am_file_cache;
587 ################################################################
589 # var_SUFFIXES_trigger ($TYPE, $VALUE)
590 # ------------------------------------
591 # This is called by Automake::Variable::define() when SUFFIXES
592 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
593 # The work here needs to be performed as a side-effect of the
594 # macro_define() call because SUFFIXES definitions impact
595 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
596 # the input am file.
597 sub var_SUFFIXES_trigger
598 {
599 my ($type, $value) = @_;
600 accept_extensions (split (' ', $value));
601 }
602 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
604 ################################################################
607 # initialize_per_input ()
608 # -----------------------
609 # (Re)-Initialize per-Makefile.am variables.
610 sub initialize_per_input ()
611 {
612 reset_local_duplicates ();
614 $relative_dir = undef;
616 $output_deps_greatest_timestamp = 0;
618 $output_vars = '';
619 $output_all = '';
620 $output_header = '';
621 $output_rules = '';
622 $output_trailer = '';
624 Automake::Options::reset;
625 Automake::Variable::reset;
626 Automake::Rule::reset;
628 @cond_stack = ();
630 @include_stack = ();
632 @all = ();
633 @check = ();
634 @check_tests = ();
636 %clean_files = ();
637 %compile_clean_files = ();
639 # We always include '.'. This isn't strictly correct.
640 %libtool_clean_directories = ('.' => 1);
642 @sources = ();
643 @dist_sources = ();
645 %object_map = ();
646 %object_compilation_map = ();
648 %directory_map = ();
650 %dep_files = ();
652 @dist_targets = ();
654 @dist_common = ();
655 $handle_dist_run = 0;
657 @proglist = ();
658 @liblist = ();
659 @ltliblist = ();
660 @dup_shortnames = ();
662 %known_programs = ();
663 %known_libraries = ();
665 %extension_seen = ();
667 %language_scratch = ();
669 %lang_specific_files = ();
671 $need_link = 0;
673 $must_handle_compiled_objects = 0;
675 %transformed_files = ();
676 }
679 ################################################################
681 # Initialize our list of languages that are internally supported.
683 my @cpplike_flags =
684 qw{
685 $(DEFS)
686 $(DEFAULT_INCLUDES)
687 $(INCLUDES)
688 $(AM_CPPFLAGS)
689 $(CPPFLAGS)
690 };
692 # C.
693 register_language ('name' => 'c',
694 'Name' => 'C',
695 'config_vars' => ['CC'],
696 'autodep' => '',
697 'flags' => ['CFLAGS', 'CPPFLAGS'],
698 'ccer' => 'CC',
699 'compiler' => 'COMPILE',
700 'compile' => "\$(CC) @cpplike_flags \$(AM_CFLAGS) \$(CFLAGS)",
701 'lder' => 'CCLD',
702 'ld' => '$(CC)',
703 'linker' => 'LINK',
704 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
705 'compile_flag' => '-c',
706 'output_flag' => '-o',
707 'libtool_tag' => 'CC',
708 'extensions' => ['.c']);
710 # C++.
711 register_language ('name' => 'cxx',
712 'Name' => 'C++',
713 'config_vars' => ['CXX'],
714 'linker' => 'CXXLINK',
715 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
716 'autodep' => 'CXX',
717 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
718 'compile' => "\$(CXX) @cpplike_flags \$(AM_CXXFLAGS) \$(CXXFLAGS)",
719 'ccer' => 'CXX',
720 'compiler' => 'CXXCOMPILE',
721 'compile_flag' => '-c',
722 'output_flag' => '-o',
723 'libtool_tag' => 'CXX',
724 'lder' => 'CXXLD',
725 'ld' => '$(CXX)',
726 'pure' => 1,
727 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
729 # Objective C.
730 register_language ('name' => 'objc',
731 'Name' => 'Objective C',
732 'config_vars' => ['OBJC'],
733 'linker' => 'OBJCLINK',
734 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
735 'autodep' => 'OBJC',
736 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
737 'compile' => "\$(OBJC) @cpplike_flags \$(AM_OBJCFLAGS) \$(OBJCFLAGS)",
738 'ccer' => 'OBJC',
739 'compiler' => 'OBJCCOMPILE',
740 'compile_flag' => '-c',
741 'output_flag' => '-o',
742 'lder' => 'OBJCLD',
743 'ld' => '$(OBJC)',
744 'pure' => 1,
745 'extensions' => ['.m']);
747 # Objective C++.
748 register_language ('name' => 'objcxx',
749 'Name' => 'Objective C++',
750 'config_vars' => ['OBJCXX'],
751 'linker' => 'OBJCXXLINK',
752 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
753 'autodep' => 'OBJCXX',
754 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
755 'compile' => "\$(OBJCXX) @cpplike_flags \$(AM_OBJCXXFLAGS) \$(OBJCXXFLAGS)",
756 'ccer' => 'OBJCXX',
757 'compiler' => 'OBJCXXCOMPILE',
758 'compile_flag' => '-c',
759 'output_flag' => '-o',
760 'lder' => 'OBJCXXLD',
761 'ld' => '$(OBJCXX)',
762 'pure' => 1,
763 'extensions' => ['.mm']);
765 # Unified Parallel C.
766 register_language ('name' => 'upc',
767 'Name' => 'Unified Parallel C',
768 'config_vars' => ['UPC'],
769 'linker' => 'UPCLINK',
770 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
771 'autodep' => 'UPC',
772 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
773 'compile' => "\$(UPC) @cpplike_flags \$(AM_UPCFLAGS) \$(UPCFLAGS)",
774 'ccer' => 'UPC',
775 'compiler' => 'UPCCOMPILE',
776 'compile_flag' => '-c',
777 'output_flag' => '-o',
778 'lder' => 'UPCLD',
779 'ld' => '$(UPC)',
780 'pure' => 1,
781 'extensions' => ['.upc']);
783 # Headers.
784 register_language ('name' => 'header',
785 'Name' => 'Header',
786 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
787 '.hpp', '.inc'],
788 # No output.
789 'output_extensions' => sub { return () },
790 # Nothing to do.
791 '_finish' => sub { });
793 # Vala
794 register_language ('name' => 'vala',
795 'Name' => 'Vala',
796 'config_vars' => ['VALAC'],
797 'flags' => [],
798 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
799 'ccer' => 'VALAC',
800 'compiler' => 'VALACOMPILE',
801 'extensions' => ['.vala'],
802 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
803 return ($ext,) },
804 'rule_file' => 'vala',
805 '_finish' => \&lang_vala_finish,
806 '_target_hook' => \&lang_vala_target_hook,
807 'nodist_specific' => 1);
809 # Yacc (C & C++).
810 register_language ('name' => 'yacc',
811 'Name' => 'Yacc',
812 'config_vars' => ['YACC'],
813 'flags' => ['YFLAGS'],
814 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
815 'ccer' => 'YACC',
816 'compiler' => 'YACCCOMPILE',
817 'extensions' => ['.y'],
818 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
819 return ($ext,) },
820 'rule_file' => 'yacc',
821 '_finish' => \&lang_yacc_finish,
822 '_target_hook' => \&lang_yacc_target_hook,
823 'nodist_specific' => 1);
824 register_language ('name' => 'yaccxx',
825 'Name' => 'Yacc (C++)',
826 'config_vars' => ['YACC'],
827 'rule_file' => 'yacc',
828 'flags' => ['YFLAGS'],
829 'ccer' => 'YACC',
830 'compiler' => 'YACCCOMPILE',
831 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
832 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
833 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
834 return ($ext,) },
835 '_finish' => \&lang_yacc_finish,
836 '_target_hook' => \&lang_yacc_target_hook,
837 'nodist_specific' => 1);
839 # Lex (C & C++).
840 register_language ('name' => 'lex',
841 'Name' => 'Lex',
842 'config_vars' => ['LEX'],
843 'rule_file' => 'lex',
844 'flags' => ['LFLAGS'],
845 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
846 'ccer' => 'LEX',
847 'compiler' => 'LEXCOMPILE',
848 'extensions' => ['.l'],
849 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
850 return ($ext,) },
851 '_finish' => \&lang_lex_finish,
852 '_target_hook' => \&lang_lex_target_hook,
853 'nodist_specific' => 1);
854 register_language ('name' => 'lexxx',
855 'Name' => 'Lex (C++)',
856 'config_vars' => ['LEX'],
857 'rule_file' => 'lex',
858 'flags' => ['LFLAGS'],
859 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
860 'ccer' => 'LEX',
861 'compiler' => 'LEXCOMPILE',
862 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
863 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
864 return ($ext,) },
865 '_finish' => \&lang_lex_finish,
866 '_target_hook' => \&lang_lex_target_hook,
867 'nodist_specific' => 1);
869 # Assembler.
870 register_language ('name' => 'asm',
871 'Name' => 'Assembler',
872 'config_vars' => ['CCAS', 'CCASFLAGS'],
874 'flags' => ['CCASFLAGS'],
875 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
876 # or anything else required. They can also set CCAS.
877 # Or simply use Preprocessed Assembler.
878 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
879 'ccer' => 'CCAS',
880 'compiler' => 'CCASCOMPILE',
881 'compile_flag' => '-c',
882 'output_flag' => '-o',
883 'extensions' => ['.s']);
885 # Preprocessed Assembler.
886 register_language ('name' => 'cppasm',
887 'Name' => 'Preprocessed Assembler',
888 'config_vars' => ['CCAS', 'CCASFLAGS'],
890 'autodep' => 'CCAS',
891 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
892 'compile' => "\$(CCAS) @cpplike_flags \$(AM_CCASFLAGS) \$(CCASFLAGS)",
893 'ccer' => 'CPPAS',
894 'compiler' => 'CPPASCOMPILE',
895 'compile_flag' => '-c',
896 'output_flag' => '-o',
897 'extensions' => ['.S', '.sx']);
899 # Fortran 77
900 register_language ('name' => 'f77',
901 'Name' => 'Fortran 77',
902 'config_vars' => ['F77'],
903 'linker' => 'F77LINK',
904 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
905 'flags' => ['FFLAGS'],
906 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
907 'ccer' => 'F77',
908 'compiler' => 'F77COMPILE',
909 'compile_flag' => '-c',
910 'output_flag' => '-o',
911 'libtool_tag' => 'F77',
912 'lder' => 'F77LD',
913 'ld' => '$(F77)',
914 'pure' => 1,
915 'extensions' => ['.f', '.for']);
917 # Fortran
918 register_language ('name' => 'fc',
919 'Name' => 'Fortran',
920 'config_vars' => ['FC'],
921 'linker' => 'FCLINK',
922 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
923 'flags' => ['FCFLAGS'],
924 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
925 'ccer' => 'FC',
926 'compiler' => 'FCCOMPILE',
927 'compile_flag' => '-c',
928 'output_flag' => '-o',
929 'libtool_tag' => 'FC',
930 'lder' => 'FCLD',
931 'ld' => '$(FC)',
932 'pure' => 1,
933 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
935 # Preprocessed Fortran
936 register_language ('name' => 'ppfc',
937 'Name' => 'Preprocessed Fortran',
938 'config_vars' => ['FC'],
939 'linker' => 'FCLINK',
940 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
941 'lder' => 'FCLD',
942 'ld' => '$(FC)',
943 'flags' => ['FCFLAGS', 'CPPFLAGS'],
944 'ccer' => 'PPFC',
945 'compiler' => 'PPFCCOMPILE',
946 'compile' => "\$(FC) @cpplike_flags \$(AM_FCFLAGS) \$(FCFLAGS)",
947 'compile_flag' => '-c',
948 'output_flag' => '-o',
949 'libtool_tag' => 'FC',
950 'pure' => 1,
951 'extensions' => ['.F90','.F95', '.F03', '.F08']);
953 # Preprocessed Fortran 77
954 #
955 # The current support for preprocessing Fortran 77 just involves
956 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
957 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
958 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
959 # for 'make' Version 3.76 Beta" (specifically, from info file
960 # '(make)Catalogue of Rules').
961 #
962 # A better approach would be to write an Autoconf test
963 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
964 # Fortran 77 compilers know how to do preprocessing. The Autoconf
965 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
966 # preprocessing capabilities, and then fall back on cpp (if cpp were
967 # available).
968 register_language ('name' => 'ppf77',
969 'Name' => 'Preprocessed Fortran 77',
970 'config_vars' => ['F77'],
971 'linker' => 'F77LINK',
972 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
973 'lder' => 'F77LD',
974 'ld' => '$(F77)',
975 'flags' => ['FFLAGS', 'CPPFLAGS'],
976 'ccer' => 'PPF77',
977 'compiler' => 'PPF77COMPILE',
978 'compile' => "\$(F77) @cpplike_flags \$(AM_FFLAGS) \$(FFLAGS)",
979 'compile_flag' => '-c',
980 'output_flag' => '-o',
981 'libtool_tag' => 'F77',
982 'pure' => 1,
983 'extensions' => ['.F']);
985 # Ratfor.
986 register_language ('name' => 'ratfor',
987 'Name' => 'Ratfor',
988 'config_vars' => ['F77'],
989 'linker' => 'F77LINK',
990 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
991 'lder' => 'F77LD',
992 'ld' => '$(F77)',
993 'flags' => ['RFLAGS', 'FFLAGS'],
994 # FIXME also FFLAGS.
995 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
996 'ccer' => 'F77',
997 'compiler' => 'RCOMPILE',
998 'compile_flag' => '-c',
999 'output_flag' => '-o',
1000 'libtool_tag' => 'F77',
1001 'pure' => 1,
1002 'extensions' => ['.r']);
1004 # Java via gcj.
1005 register_language ('name' => 'java',
1006 'Name' => 'Java',
1007 'config_vars' => ['GCJ'],
1008 'linker' => 'GCJLINK',
1009 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1010 'autodep' => 'GCJ',
1011 'flags' => ['GCJFLAGS'],
1012 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1013 'ccer' => 'GCJ',
1014 'compiler' => 'GCJCOMPILE',
1015 'compile_flag' => '-c',
1016 'output_flag' => '-o',
1017 'libtool_tag' => 'GCJ',
1018 'lder' => 'GCJLD',
1019 'ld' => '$(GCJ)',
1020 'pure' => 1,
1021 'extensions' => ['.java', '.class', '.zip', '.jar']);
1023 ################################################################
1025 # Error reporting functions.
1027 # err_am ($MESSAGE, [%OPTIONS])
1028 # -----------------------------
1029 # Uncategorized errors about the current Makefile.am.
1030 sub err_am
1031 {
1032 msg_am ('error', @_);
1033 }
1035 # err_ac ($MESSAGE, [%OPTIONS])
1036 # -----------------------------
1037 # Uncategorized errors about configure.ac.
1038 sub err_ac
1039 {
1040 msg_ac ('error', @_);
1041 }
1043 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1044 # ---------------------------------------
1045 # Messages about about the current Makefile.am.
1046 sub msg_am
1047 {
1048 my ($channel, $msg, %opts) = @_;
1049 msg $channel, "${am_file}.am", $msg, %opts;
1050 }
1052 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1053 # ---------------------------------------
1054 # Messages about about configure.ac.
1055 sub msg_ac
1056 {
1057 my ($channel, $msg, %opts) = @_;
1058 msg $channel, $configure_ac, $msg, %opts;
1059 }
1061 ################################################################
1063 # subst ($TEXT)
1064 # -------------
1065 # Return a configure-style substitution using the indicated text.
1066 # We do this to avoid having the substitutions directly in automake.in;
1067 # when we do that they are sometimes removed and this causes confusion
1068 # and bugs.
1069 sub subst
1070 {
1071 my ($text) = @_;
1072 return '@' . $text . '@';
1073 }
1075 ################################################################
1078 # $BACKPATH
1079 # backname ($RELDIR)
1080 # -------------------
1081 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1082 # For instance 'src/foo' => '../..'.
1083 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1084 sub backname
1085 {
1086 my ($file) = @_;
1087 my @res;
1088 foreach (split (/\//, $file))
1089 {
1090 next if $_ eq '.' || $_ eq '';
1091 if ($_ eq '..')
1092 {
1093 pop @res
1094 or prog_error ("trying to reverse path '$file' pointing outside tree");
1095 }
1096 else
1097 {
1098 push (@res, '..');
1099 }
1100 }
1101 return join ('/', @res) || '.';
1102 }
1104 ################################################################
1106 # Silent rules handling functions.
1108 # verbose_var (NAME)
1109 # ------------------
1110 # The public variable stem used to implement silent rules.
1111 sub verbose_var
1112 {
1113 my ($name) = @_;
1114 return 'AM_V_' . $name;
1115 }
1117 # verbose_private_var (NAME)
1118 # --------------------------
1119 # The naming policy for the private variables for silent rules.
1120 sub verbose_private_var
1121 {
1122 my ($name) = @_;
1123 return 'am__v_' . $name;
1124 }
1126 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1127 # ----------------------------------------------------------
1128 # For silent rules, setup VAR and dispatcher, to expand to
1129 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
1130 # empty) if not.
1131 sub define_verbose_var
1132 {
1133 my ($name, $silent_val, $verbose_val) = @_;
1134 $verbose_val = '' unless defined $verbose_val;
1135 my $var = verbose_var ($name);
1136 my $pvar = verbose_private_var ($name);
1137 my $silent_var = $pvar . '_0';
1138 my $verbose_var = $pvar . '_1';
1139 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1140 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1141 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1142 # See AM_SILENT_RULES in m4/silent.m4.
1143 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1144 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1145 INTERNAL);
1146 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1147 $silent_val, '', INTERNAL, VAR_ASIS)
1148 if (! vardef ($silent_var, TRUE));
1149 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1150 $verbose_val, '', INTERNAL, VAR_ASIS)
1151 if (! vardef ($verbose_var, TRUE));
1152 }
1154 # verbose_flag (NAME)
1155 # -------------------
1156 # Contents of '%VERBOSE%' variable to expand before rule command.
1157 sub verbose_flag
1158 {
1159 my ($name) = @_;
1160 return '$(' . verbose_var ($name) . ')';
1161 }
1163 sub verbose_nodep_flag
1164 {
1165 my ($name) = @_;
1166 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1167 }
1169 # silent_flag
1170 # -----------
1171 # Contents of %SILENT%: variable to expand to '@' when silent.
1172 sub silent_flag ()
1173 {
1174 return verbose_flag ('at');
1175 }
1177 # define_verbose_tagvar (NAME)
1178 # ----------------------------
1179 # Engage the needed silent rules machinery for tag NAME.
1180 sub define_verbose_tagvar
1181 {
1182 my ($name) = @_;
1183 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1184 }
1186 # Engage the needed silent rules machinery for assorted texinfo commands.
1187 sub define_verbose_texinfo ()
1188 {
1189 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1190 foreach my $tag (@tagvars)
1191 {
1192 define_verbose_tagvar($tag);
1193 }
1194 define_verbose_var('texinfo', '-q');
1195 define_verbose_var('texidevnull', '> /dev/null');
1196 }
1198 # Engage the needed silent rules machinery for 'libtool --silent'.
1199 sub define_verbose_libtool ()
1200 {
1201 define_verbose_var ('lt', '--silent');
1202 return verbose_flag ('lt');
1203 }
1205 sub handle_silent ()
1206 {
1207 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1208 # used in make recipes to determine whether we are being run in
1209 # silent mode or not. The choice of the name derives from the LISP
1210 # convention of appending the letter 'P' to denote a predicate (see
1211 # also "the '-P' convention" in the Jargon File); we do so for lack
1212 # of a better convention.
1213 define_verbose_var ('P', 'false', ':');
1214 # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
1215 define_verbose_tagvar ('GEN');
1216 define_verbose_var ('at', '@');
1217 }
1220 ################################################################
1223 # Handle AUTOMAKE_OPTIONS variable. Return 0 on error, 1 otherwise.
1224 sub handle_options ()
1225 {
1226 my $var = var ('AUTOMAKE_OPTIONS');
1227 if ($var)
1228 {
1229 if ($var->has_conditional_contents)
1230 {
1231 msg_var ('unsupported', $var,
1232 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1233 }
1234 my @options = map { { option => $_->[1], where => $_->[0] } }
1235 $var->value_as_list_recursive (cond_filter => TRUE,
1236 location => 1);
1237 return 0 unless process_option_list (@options);
1238 }
1240 if ($strictness == GNITS)
1241 {
1242 set_option ('readme-alpha', INTERNAL);
1243 set_option ('std-options', INTERNAL);
1244 set_option ('check-news', INTERNAL);
1245 }
1247 return 1;
1248 }
1250 # shadow_unconditionally ($varname, $where)
1251 # -----------------------------------------
1252 # Return a $(variable) that contains all possible values
1253 # $varname can take.
1254 # If the VAR wasn't defined conditionally, return $(VAR).
1255 # Otherwise we create an am__VAR_DIST variable which contains
1256 # all possible values, and return $(am__VAR_DIST).
1257 sub shadow_unconditionally
1258 {
1259 my ($varname, $where) = @_;
1260 my $var = var $varname;
1261 if ($var->has_conditional_contents)
1262 {
1263 $varname = "am__${varname}_DIST";
1264 my @files = uniq ($var->value_as_list_recursive);
1265 define_pretty_variable ($varname, TRUE, $where, @files);
1266 }
1267 return "\$($varname)"
1268 }
1270 # check_user_variables (@LIST)
1271 # ----------------------------
1272 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1273 # otherwise.
1274 sub check_user_variables
1275 {
1276 my @dont_override = @_;
1277 foreach my $flag (@dont_override)
1278 {
1279 my $var = var $flag;
1280 if ($var)
1281 {
1282 for my $cond ($var->conditions->conds)
1283 {
1284 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1285 {
1286 msg_cond_var ('gnu', $cond, $flag,
1287 "'$flag' is a user variable, "
1288 . "you should not override it;\n"
1289 . "use 'AM_$flag' instead");
1290 }
1291 }
1292 }
1293 }
1294 }
1296 # Call finish function for each language that was used.
1297 sub handle_languages ()
1298 {
1299 if (! option 'no-dependencies')
1300 {
1301 # Include auto-dep code. Don't include it if DEP_FILES would
1302 # be empty.
1303 if (keys %extension_seen && keys %dep_files)
1304 {
1305 my @dep_files = sort keys %dep_files;
1306 # Set location of depcomp.
1307 define_variable ('depcomp',
1308 "\$(SHELL) $am_config_aux_dir/depcomp",
1309 INTERNAL);
1310 define_variable ('am__maybe_remake_depfiles', 'depfiles', INTERNAL);
1311 define_variable ('am__depfiles_remade', "@dep_files", INTERNAL);
1312 $output_rules .= "\n";
1313 my @dist_rms;
1314 foreach my $depfile (@dep_files)
1315 {
1316 push @dist_rms, "\t-rm -f $depfile";
1317 # Generate each 'include' directive individually. Several
1318 # make implementations (IRIX 6, Solaris 10, FreeBSD 8) will
1319 # fail to properly include several files resulting from a
1320 # variable expansion. Just Generating many separate includes
1321 # seems thus safest.
1322 $output_rules .= subst ('AMDEP_TRUE') .
1323 subst ('am__include') .
1324 " " .
1325 subst('am__quote') .
1326 $depfile .
1327 subst('am__quote') .
1328 " " .
1329 "# am--include-marker\n";
1330 }
1332 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1334 $output_rules .= file_contents (
1335 'depend', new Automake::Location,
1336 'DISTRMS' => join ("\n", @dist_rms));
1337 }
1338 }
1339 else
1340 {
1341 define_variable ('depcomp', '', INTERNAL);
1342 define_variable ('am__maybe_remake_depfiles', '', INTERNAL);
1343 }
1345 my %done;
1347 # Is the C linker needed?
1348 my $needs_c = 0;
1349 foreach my $ext (sort keys %extension_seen)
1350 {
1351 next unless $extension_map{$ext};
1353 my $lang = $languages{$extension_map{$ext}};
1355 my $rule_file = $lang->rule_file || 'depend2';
1357 # Get information on $LANG.
1358 my $pfx = $lang->autodep;
1359 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1361 my ($AMDEP, $FASTDEP) =
1362 (option 'no-dependencies' || $lang->autodep eq 'no')
1363 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1365 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1366 my $verbose_nodep = ($AMDEP eq 'FALSE')
1367 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1368 my $silent = silent_flag ();
1370 my %transform = ('EXT' => $ext,
1371 'PFX' => $pfx,
1372 'FPFX' => $fpfx,
1373 'AMDEP' => $AMDEP,
1374 'FASTDEP' => $FASTDEP,
1375 '-c' => $lang->compile_flag || '',
1376 # These are not used, but they need to be defined
1377 # so transform() do not complain.
1378 SUBDIROBJ => 0,
1379 'DERIVED-EXT' => 'BUG',
1380 DIST_SOURCE => 1,
1381 VERBOSE => $verbose,
1382 'VERBOSE-NODEP' => $verbose_nodep,
1383 SILENT => $silent,
1384 );
1386 # Generate the appropriate rules for this extension.
1387 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1388 || defined $lang->compile)
1389 {
1390 # Compute a possible derived extension.
1391 # This is not used by depend2.am.
1392 my $der_ext = ($lang->output_extensions->($ext))[0];
1394 # When we output an inference rule like '.c.o:' we
1395 # have two cases to consider: either subdir-objects
1396 # is used, or it is not.
1397 #
1398 # In the latter case the rule is used to build objects
1399 # in the current directory, and dependencies always
1400 # go into './$(DEPDIR)/'. We can hard-code this value.
1401 #
1402 # In the former case the rule can be used to build
1403 # objects in sub-directories too. Dependencies should
1404 # go into the appropriate sub-directories, e.g.,
1405 # 'sub/$(DEPDIR)/'. The value of this directory
1406 # needs to be computed on-the-fly.
1407 #
1408 # DEPBASE holds the name of this directory, plus the
1409 # basename part of the object file (extensions Po, TPo,
1410 # Plo, TPlo will be added later as appropriate). It is
1411 # either hardcoded, or a shell variable ('$depbase') that
1412 # will be computed by the rule.
1413 my $depbase =
1414 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1415 $output_rules .=
1416 file_contents ($rule_file,
1417 new Automake::Location,
1418 %transform,
1419 GENERIC => 1,
1421 'DERIVED-EXT' => $der_ext,
1423 DEPBASE => $depbase,
1424 BASE => '$*',
1425 SOURCE => '$<',
1426 SOURCEFLAG => $sourceflags{$ext} || '',
1427 OBJ => '$@',
1428 OBJOBJ => '$@',
1429 LTOBJ => '$@',
1431 COMPILE => '$(' . $lang->compiler . ')',
1432 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1433 -o => $lang->output_flag,
1434 SUBDIROBJ => !! option 'subdir-objects');
1435 }
1437 # Now include code for each specially handled object with this
1438 # language.
1439 my %seen_files = ();
1440 foreach my $file (@{$lang_specific_files{$lang->name}})
1441 {
1442 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1444 # We might see a given object twice, for instance if it is
1445 # used under different conditions.
1446 next if defined $seen_files{$obj};
1447 $seen_files{$obj} = 1;
1449 prog_error ("found " . $lang->name .
1450 " in handle_languages, but compiler not defined")
1451 unless defined $lang->compile;
1453 my $obj_compile = $lang->compile;
1455 # Rewrite each occurrence of 'AM_$flag' in the compile
1456 # rule into '${derived}_$flag' if it exists.
1457 for my $flag (@{$lang->flags})
1458 {
1459 my $val = "${derived}_$flag";
1460 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1461 if set_seen ($val);
1462 }
1464 my $libtool_tag = '';
1465 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1466 {
1467 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1468 }
1470 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1471 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1473 my $ltverbose = define_verbose_libtool ();
1474 my $obj_ltcompile =
1475 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1476 . "--mode=compile $obj_compile";
1478 # We _need_ '-o' for per object rules.
1479 my $output_flag = $lang->output_flag || '-o';
1481 my $depbase = dirname ($obj);
1482 $depbase = ''
1483 if $depbase eq '.';
1484 $depbase .= '/'
1485 unless $depbase eq '';
1486 $depbase .= '$(DEPDIR)/' . basename ($obj);
1488 $output_rules .=
1489 file_contents ($rule_file,
1490 new Automake::Location,
1491 %transform,
1492 GENERIC => 0,
1494 DEPBASE => $depbase,
1495 BASE => $obj,
1496 SOURCE => $source,
1497 SOURCEFLAG => $sourceflags{$srcext} || '',
1498 # Use $myext and not '.o' here, in case
1499 # we are actually building a new source
1500 # file -- e.g. via yacc.
1501 OBJ => "$obj$myext",
1502 OBJOBJ => "$obj.obj",
1503 LTOBJ => "$obj.lo",
1505 VERBOSE => $verbose,
1506 'VERBOSE-NODEP' => $verbose_nodep,
1507 SILENT => $silent,
1508 COMPILE => $obj_compile,
1509 LTCOMPILE => $obj_ltcompile,
1510 -o => $output_flag,
1511 %file_transform);
1512 }
1514 # The rest of the loop is done once per language.
1515 next if defined $done{$lang};
1516 $done{$lang} = 1;
1518 # Load the language dependent Makefile chunks.
1519 my %lang = map { uc ($_) => 0 } keys %languages;
1520 $lang{uc ($lang->name)} = 1;
1521 $output_rules .= file_contents ('lang-compile',
1522 new Automake::Location,
1523 %transform, %lang);
1525 # If the source to a program consists entirely of code from a
1526 # 'pure' language, for instance C++ or Fortran 77, then we
1527 # don't need the C compiler code. However if we run into
1528 # something unusual then we do generate the C code. There are
1529 # probably corner cases here that do not work properly.
1530 # People linking Java code to Fortran code deserve pain.
1531 $needs_c ||= ! $lang->pure;
1533 define_compiler_variable ($lang)
1534 if ($lang->compile);
1536 define_linker_variable ($lang)
1537 if ($lang->link);
1539 require_variables ("$am_file.am", $lang->Name . " source seen",
1540 TRUE, @{$lang->config_vars});
1542 # Call the finisher.
1543 $lang->finish;
1545 # Flags listed in '->flags' are user variables (per GNU Standards),
1546 # they should not be overridden in the Makefile...
1547 my @dont_override = @{$lang->flags};
1548 # ... and so is LDFLAGS.
1549 push @dont_override, 'LDFLAGS' if $lang->link;
1551 check_user_variables @dont_override;
1552 }
1554 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1555 # suffix rule was learned), don't bother with the C stuff. But if
1556 # anything else creeps in, then use it.
1557 my @languages_seen = map { $languages{$extension_map{$_}}->name }
1558 (keys %extension_seen);
1559 @languages_seen = uniq (@languages_seen);
1560 $needs_c = 1 if @languages_seen > 1;
1561 if ($need_link || $needs_c)
1562 {
1563 define_compiler_variable ($languages{'c'})
1564 unless defined $done{$languages{'c'}};
1565 define_linker_variable ($languages{'c'});
1566 }
1567 }
1570 # append_exeext { PREDICATE } $MACRO
1571 # ----------------------------------
1572 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1573 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1574 # ignored.
1575 #
1576 # This is typically used on all filenames of *_PROGRAMS, and filenames
1577 # of TESTS that are programs.
1578 sub append_exeext (&$)
1579 {
1580 my ($pred, $macro) = @_;
1582 transform_variable_recursively
1583 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1584 sub {
1585 my ($subvar, $val, $cond, $full_cond) = @_;
1586 # Append $(EXEEXT) unless the user did it already, or it's a
1587 # @substitution@.
1588 $val .= '$(EXEEXT)'
1589 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1590 return $val;
1591 });
1592 }
1595 # Check to make sure a source defined in LIBOBJS is not explicitly
1596 # mentioned. This is a separate function (as opposed to being inlined
1597 # in handle_source_transform) because it isn't always appropriate to
1598 # do this check.
1599 sub check_libobjs_sources
1600 {
1601 my ($one_file, $unxformed) = @_;
1603 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1604 'dist_EXTRA_', 'nodist_EXTRA_')
1605 {
1606 my @files;
1607 my $varname = $prefix . $one_file . '_SOURCES';
1608 my $var = var ($varname);
1609 if ($var)
1610 {
1611 @files = $var->value_as_list_recursive;
1612 }
1613 elsif ($prefix eq '')
1614 {
1615 @files = ($unxformed . '.c');
1616 }
1617 else
1618 {
1619 next;
1620 }
1622 foreach my $file (@files)
1623 {
1624 err_var ($prefix . $one_file . '_SOURCES',
1625 "automatically discovered file '$file' should not" .
1626 " be explicitly mentioned")
1627 if defined $libsources{$file};
1628 }
1629 }
1630 }
1633 # @OBJECTS
1634 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1635 # -----------------------------------------------------------------------------
1636 # Does much of the actual work for handle_source_transform.
1637 # Arguments are:
1638 # $VAR is the name of the variable that the source filenames come from
1639 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1640 # $DERIVED is the name of resulting executable or library
1641 # $OBJ is the object extension (e.g., '.lo')
1642 # $FILE the source file to transform
1643 # %TRANSFORM contains extras arguments to pass to file_contents
1644 # when producing explicit rules
1645 # Result is a list of the names of objects
1646 # %linkers_used will be updated with any linkers needed
1647 sub handle_single_transform
1648 {
1649 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1650 my @files = ($_file);
1651 my @result = ();
1653 # Turn sources into objects. We use a while loop like this
1654 # because we might add to @files in the loop.
1655 while (scalar @files > 0)
1656 {
1657 $_ = shift @files;
1659 # Configure substitutions in _SOURCES variables are errors.
1660 if (/^\@.*\@$/)
1661 {
1662 my $parent_msg = '';
1663 $parent_msg = "\nand is referred to from '$topparent'"
1664 if $topparent ne $var->name;
1665 err_var ($var,
1666 "'" . $var->name . "' includes configure substitution '$_'"
1667 . $parent_msg . ";\nconfigure " .
1668 "substitutions are not allowed in _SOURCES variables");
1669 next;
1670 }
1672 # If the source file is in a subdirectory then the '.o' is put
1673 # into the current directory, unless the subdir-objects option
1674 # is in effect.
1676 # Split file name into base and extension.
1677 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1678 my $full = $_;
1679 my $directory = $1 || '';
1680 my $base = $2;
1681 my $extension = $3;
1683 # We must generate a rule for the object if it requires its own flags.
1684 my $renamed = 0;
1685 my ($linker, $object);
1687 # This records whether we've seen a derived source file (e.g., yacc
1688 # or lex output).
1689 my $derived_source;
1691 # This holds the 'aggregate context' of the file we are
1692 # currently examining. If the file is compiled with
1693 # per-object flags, then it will be the name of the object.
1694 # Otherwise it will be 'AM'. This is used by the target hook
1695 # language function.
1696 my $aggregate = 'AM';
1698 $extension = derive_suffix ($extension, $obj);
1699 my $lang;
1700 if ($extension_map{$extension} &&
1701 ($lang = $languages{$extension_map{$extension}}))
1702 {
1703 # Found the language, so see what it says.
1704 saw_extension ($extension);
1706 # Do we have per-executable flags for this executable?
1707 my $have_per_exec_flags = 0;
1708 my @peflags = @{$lang->flags};
1709 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1710 foreach my $flag (@peflags)
1711 {
1712 if (set_seen ("${derived}_$flag"))
1713 {
1714 $have_per_exec_flags = 1;
1715 last;
1716 }
1717 }
1719 # Note: computed subr call. The language rewrite function
1720 # should return one of the LANG_* constants. It could
1721 # also return a list whose first value is such a constant
1722 # and whose second value is a new source extension which
1723 # should be applied. This means this particular language
1724 # generates another source file which we must then process
1725 # further.
1726 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1727 defined &$subr or $subr = \&lang_sub_obj;
1728 my ($r, $source_extension)
1729 = &$subr ($directory, $base, $extension,
1730 $obj, $have_per_exec_flags, $var);
1731 # Skip this entry if we were asked not to process it.
1732 next if $r == LANG_IGNORE;
1734 # Now extract linker and other info.
1735 $linker = $lang->linker;
1737 my $this_obj_ext;
1738 if (defined $source_extension)
1739 {
1740 $this_obj_ext = $source_extension;
1741 $derived_source = 1;
1742 }
1743 else
1744 {
1745 $this_obj_ext = $obj;
1746 $derived_source = 0;
1747 # Don't ever place built object files in $(srcdir),
1748 # even when sources are specified explicitly as (say)
1749 # '$(srcdir)/foo.c' or '$(top_srcdir)/foo.c'.
1750 # See automake bug#13928.
1751 my @d = split '/', $directory;
1752 if (@d > 0 && option 'subdir-objects')
1753 {
1754 my $d = $d[0];
1755 if ($d eq '$(srcdir)' or $d eq '${srcdir}')
1756 {
1757 shift @d;
1758 }
1759 elsif ($d eq '$(top_srcdir)' or $d eq '${top_srcdir}')
1760 {
1761 $d[0] = '$(top_builddir)';
1762 }
1763 $directory = join '/', @d;
1764 }
1765 }
1766 $object = $base . $this_obj_ext;
1768 if ($have_per_exec_flags)
1769 {
1770 # We have a per-executable flag in effect for this
1771 # object. In this case we rewrite the object's
1772 # name to ensure it is unique.
1774 # We choose the name 'DERIVED_OBJECT' to ensure (1) uniqueness,
1775 # and (2) continuity between invocations. However, this will
1776 # result in a name that is too long for losing systems, in some
1777 # situations. So we attempt to shorten automatically under
1778 # subdir-objects, and provide _SHORTNAME to override as a last
1779 # resort. If subdir-object is in effect, it's usually
1780 # unnecessary to use the complete 'DERIVED_OBJECT' (that is
1781 # often the result from %canon_reldir%/%C% usage) since objects
1782 # are placed next to their source file. Generally, this means
1783 # it is already unique within that directory (see below for an
1784 # exception). Thus, we try to avoid unnecessarily long file
1785 # names by stripping the directory components of
1786 # 'DERIVED_OBJECT'. This allows avoiding explicit _SHORTNAME
1787 # usage in many cases. EXCEPTION: If two (or more) targets in
1788 # different directories but with the same base name (after
1789 # canonicalization), using target-specific FLAGS, link the same
1790 # object, then this logic clashes. Thus, we don't strip if
1791 # this is detected.
1792 my $dname = $derived;
1793 if ($directory ne ''
1794 && option 'subdir-objects'
1795 && none { $dname =~ /$_$/ } @dup_shortnames)
1796 {
1797 # At this point, we don't clear information about what
1798 # parts of $derived are truly file name components. We can
1799 # determine that by comparing against the canonicalization
1800 # of $directory.
1801 my $dir = $directory . "/";
1802 my $cdir = canonicalize ($dir);
1803 my $dir_len = length ($dir);
1804 # Make sure we only strip full file name components. This
1805 # is done by repeatedly trying to find cdir at the
1806 # beginning. Each iteration removes one file name
1807 # component from the end of cdir.
1808 while ($dir_len > 0 && index ($derived, $cdir) != 0)
1809 {
1810 # Eventually $dir_len becomes 0.
1811 $dir_len = rindex ($dir, "/", $dir_len - 2) + 1;
1812 $cdir = substr ($cdir, 0, $dir_len);
1813 }
1814 $dname = substr ($derived, $dir_len);
1815 }
1816 my $var = var ($derived . '_SHORTNAME');
1817 if ($var)
1818 {
1819 # FIXME: should use the same Condition as
1820 # the _SOURCES variable. But this is really
1821 # silly overkill -- nobody should have
1822 # conditional shortnames.
1823 $dname = $var->variable_value;
1824 }
1825 $object = $dname . '-' . $object;
1827 prog_error ($lang->name . " flags defined without compiler")
1828 if ! defined $lang->compile;
1830 $renamed = 1;
1831 }
1833 # If rewrite said it was ok, put the object into a subdir.
1834 if ($directory ne '')
1835 {
1836 if ($r == LANG_SUBDIR)
1837 {
1838 $object = $directory . '/' . $object;
1839 }
1840 else
1841 {
1842 # Since the next major version of automake (2.0) will
1843 # make the behaviour so far only activated with the
1844 # 'subdir-object' option mandatory, it's better if we
1845 # start warning users not using that option.
1846 # As suggested by Peter Johansson, we strive to avoid
1847 # the warning when it would be irrelevant, i.e., if
1848 # all source files sit in "current" directory.
1849 msg_var 'unsupported', $var,
1850 "source file '$full' is in a subdirectory,"
1851 . "\nbut option 'subdir-objects' is disabled";
1852 msg 'unsupported', INTERNAL, <<'EOF', uniq_scope => US_GLOBAL;
1853 possible forward-incompatibility.
1854 At least a source file is in a subdirectory, but the 'subdir-objects'
1855 automake option hasn't been enabled. For now, the corresponding output
1856 object file(s) will be placed in the top-level directory. However,
1857 this behaviour will change in future Automake versions: they will
1858 unconditionally cause object files to be placed in the same subdirectory
1859 of the corresponding sources.
1860 You are advised to start using 'subdir-objects' option throughout your
1861 project, to avoid future incompatibilities.
1862 EOF
1863 }
1864 }
1866 # If the object file has been renamed (because per-target
1867 # flags are used) we cannot compile the file with an
1868 # inference rule: we need an explicit rule.
1869 #
1870 # If the source is in a subdirectory and the object is in
1871 # the current directory, we also need an explicit rule.
1872 #
1873 # If both source and object files are in a subdirectory
1874 # (this happens when the subdir-objects option is used),
1875 # then the inference will work.
1876 #
1877 # The latter case deserves a historical note. When the
1878 # subdir-objects option was added on 1999-04-11 it was
1879 # thought that inferences rules would work for
1880 # subdirectory objects too. Later, on 1999-11-22,
1881 # automake was changed to output explicit rules even for
1882 # subdir-objects. Nobody remembers why, but this occurred
1883 # soon after the merge of the user-dep-gen-branch so it
1884 # might be related. In late 2003 people complained about
1885 # the size of the generated Makefile.ins (libgcj, with
1886 # 2200+ subdir objects was reported to have a 9MB
1887 # Makefile), so we now rely on inference rules again.
1888 # Maybe we'll run across the same issue as in the past,
1889 # but at least this time we can document it. However since
1890 # dependency tracking has evolved it is possible that
1891 # our old problem no longer exists.
1892 # Using inference rules for subdir-objects has been tested
1893 # with GNU make, Solaris make, Ultrix make, BSD make,
1894 # HP-UX make, and OSF1 make successfully.
1895 if ($renamed
1896 || ($directory ne '' && ! option 'subdir-objects')
1897 # We must also use specific rules for a nodist_ source
1898 # if its language requests it.
1899 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1900 {
1901 my $obj_sans_ext = substr ($object, 0,
1902 - length ($this_obj_ext));
1903 my $full_ansi;
1904 if ($directory ne '')
1905 {
1906 $full_ansi = $directory . '/' . $base . $extension;
1907 }
1908 else
1909 {
1910 $full_ansi = $base . $extension;
1911 }
1913 my @specifics = ($full_ansi, $obj_sans_ext,
1914 # Only use $this_obj_ext in the derived
1915 # source case because in the other case we
1916 # *don't* want $(OBJEXT) to appear here.
1917 ($derived_source ? $this_obj_ext : '.o'),
1918 $extension);
1920 # If we renamed the object then we want to use the
1921 # per-executable flag name. But if this is simply a
1922 # subdir build then we still want to use the AM_ flag
1923 # name.
1924 if ($renamed)
1925 {
1926 unshift @specifics, $derived;
1927 $aggregate = $derived;
1928 }
1929 else
1930 {
1931 unshift @specifics, 'AM';
1932 }
1934 # Each item on this list is a reference to a list consisting
1935 # of four values followed by additional transform flags for
1936 # file_contents. The four values are the derived flag prefix
1937 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1938 # source file, the base name of the output file, and
1939 # the extension for the object file.
1940 push (@{$lang_specific_files{$lang->name}},
1941 [@specifics, %transform]);
1942 }
1943 }
1944 elsif ($extension eq $obj)
1945 {
1946 # This is probably the result of a direct suffix rule.
1947 # In this case we just accept the rewrite.
1948 $object = "$base$extension";
1949 $object = "$directory/$object" if $directory ne '';
1950 $linker = '';
1951 }
1952 else
1953 {
1954 # No error message here. Used to have one, but it was
1955 # very unpopular.
1956 # FIXME: we could potentially do more processing here,
1957 # perhaps treating the new extension as though it were a
1958 # new source extension (as above). This would require
1959 # more restructuring than is appropriate right now.
1960 next;
1961 }
1963 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1964 if (defined $object_map{$object}
1965 && $object_map{$object} ne $full);
1967 my $comp_val = (($object =~ /\.lo$/)
1968 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1969 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1970 if (defined $object_compilation_map{$comp_obj}
1971 && $object_compilation_map{$comp_obj} != 0
1972 # Only see the error once.
1973 && ($object_compilation_map{$comp_obj}
1974 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1975 && $object_compilation_map{$comp_obj} != $comp_val)
1976 {
1977 err_am "object '$comp_obj' created both with libtool and without";
1978 }
1979 $object_compilation_map{$comp_obj} |= $comp_val;
1981 if (defined $lang)
1982 {
1983 # Let the language do some special magic if required.
1984 $lang->target_hook ($aggregate, $object, $full, %transform);
1985 }
1987 if ($derived_source)
1988 {
1989 prog_error ($lang->name . " has automatic dependency tracking")
1990 if $lang->autodep ne 'no';
1991 # Make sure this new source file is handled next. That will
1992 # make it appear to be at the right place in the list.
1993 unshift (@files, $object);
1994 # Distribute derived sources unless the source they are
1995 # derived from is not.
1996 push_dist_common ($object)
1997 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1998 next;
1999 }
2001 $linkers_used{$linker} = 1;
2003 push (@result, $object);
2005 if (! defined $object_map{$object})
2006 {
2007 my @dep_list = ();
2008 $object_map{$object} = $full;
2010 # If resulting object is in subdir, we need to make
2011 # sure the subdir exists at build time.
2012 if ($object =~ /\//)
2013 {
2014 # FIXME: check that $DIRECTORY is somewhere in the
2015 # project
2017 # For Java, the way we're handling it right now, a
2018 # '..' component doesn't make sense.
2019 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2020 {
2021 err_am "'$full' should not contain a '..' component";
2022 }
2024 # Make sure *all* objects files in the subdirectory are
2025 # removed by "make mostlyclean". Not only this is more
2026 # efficient than listing the object files to be removed
2027 # individually (which would cause an 'rm' invocation for
2028 # each of them -- very inefficient, see bug#10697), it
2029 # would also leave stale object files in the subdirectory
2030 # whenever a source file there is removed or renamed.
2031 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
2032 if ($object =~ /\.lo$/)
2033 {
2034 # If we have a libtool object, then we also must remove
2035 # any '.lo' objects in its same subdirectory.
2036 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
2037 # Remember to cleanup .libs/ in this directory.
2038 $libtool_clean_directories{$directory} = 1;
2039 }
2041 push (@dep_list, require_build_directory ($directory));
2043 # If we're generating dependencies, we also want
2044 # to make sure that the appropriate subdir of the
2045 # .deps directory is created.
2046 push (@dep_list,
2047 require_build_directory ($directory . '/$(DEPDIR)'))
2048 unless option 'no-dependencies';
2049 }
2051 pretty_print_rule ($object . ':', "\t", @dep_list)
2052 if scalar @dep_list > 0;
2053 }
2055 # Transform .o or $o file into .P file (for automatic
2056 # dependency code).
2057 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2058 # might fail over them in an include statement.
2059 # Leading double slashes may be special, as per Posix, so deal
2060 # with them carefully.
2061 if ($lang && $lang->autodep ne 'no')
2062 {
2063 my $depfile = $object;
2064 $depfile =~ s/\.([^.]*)$/.P$1/;
2065 $depfile =~ s/\$\(OBJEXT\)$/o/;
2066 my $maybe_extra_leading_slash = '';
2067 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2068 $depfile =~ s,/+,/,g;
2069 my $basename = basename ($depfile);
2070 # This might make $dirname empty, but we account for that below.
2071 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2072 $dirname = $maybe_extra_leading_slash . $dirname;
2073 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2074 }
2075 }
2077 return @result;
2078 }
2081 # $LINKER
2082 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2083 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2084 # ---------------------------------------------------------------------------
2085 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2086 #
2087 # Arguments are:
2088 # $VAR is the name of the _SOURCES variable
2089 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2090 # it will be generated and returned).
2091 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2092 # work done to determine the linker will be).
2093 # $ONE_FILE is the canonical (transformed) name of object to build
2094 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2095 # $TOPPARENT is the _SOURCES variable being processed.
2096 # $WHERE context into which this definition is done
2097 # %TRANSFORM extra arguments to pass to file_contents when producing
2098 # rules
2099 #
2100 # Result is a pair ($LINKER, $OBJVAR):
2101 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2102 sub define_objects_from_sources
2103 {
2104 my ($var, $objvar, $nodefine, $one_file,
2105 $obj, $topparent, $where, %transform) = @_;
2107 my $needlinker = "";
2109 transform_variable_recursively
2110 ($var, $objvar, 'am__objects', $nodefine, $where,
2111 # The transform code to run on each filename.
2112 sub {
2113 my ($subvar, $val, $cond, $full_cond) = @_;
2114 my @trans = handle_single_transform ($subvar, $topparent,
2115 $one_file, $obj, $val,
2116 %transform);
2117 $needlinker = "true" if @trans;
2118 return @trans;
2119 });
2121 return $needlinker;
2122 }
2125 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2126 # -----------------------------------------------------------------------------
2127 # Handle SOURCE->OBJECT transform for one program or library.
2128 # Arguments are:
2129 # canonical (transformed) name of target to build
2130 # actual target of object to build
2131 # object extension (i.e., either '.o' or '$o')
2132 # location of the source variable
2133 # extra arguments to pass to file_contents when producing rules
2134 # Return the name of the linker variable that must be used.
2135 # Empty return means just use 'LINK'.
2136 sub handle_source_transform
2137 {
2138 # one_file is canonical name. unxformed is given name. obj is
2139 # object extension.
2140 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2142 my $linker = '';
2144 # No point in continuing if _OBJECTS is defined.
2145 return if reject_var ($one_file . '_OBJECTS',
2146 $one_file . '_OBJECTS should not be defined');
2148 my %used_pfx = ();
2149 my $needlinker;
2150 %linkers_used = ();
2151 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2152 'dist_EXTRA_', 'nodist_EXTRA_')
2153 {
2154 my $varname = $prefix . $one_file . "_SOURCES";
2155 my $var = var $varname;
2156 next unless $var;
2158 # We are going to define _OBJECTS variables using the prefix.
2159 # Then we glom them all together. So we can't use the null
2160 # prefix here as we need it later.
2161 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2163 # Keep track of which prefixes we saw.
2164 $used_pfx{$xpfx} = 1
2165 unless $prefix =~ /EXTRA_/;
2167 push @sources, "\$($varname)";
2168 push @dist_sources, shadow_unconditionally ($varname, $where)
2169 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2171 $needlinker |=
2172 define_objects_from_sources ($varname,
2173 $xpfx . $one_file . '_OBJECTS',
2174 !!($prefix =~ /EXTRA_/),
2175 $one_file, $obj, $varname, $where,
2176 DIST_SOURCE => ($prefix !~ /^nodist_/),
2177 %transform);
2178 }
2179 if ($needlinker)
2180 {
2181 $linker ||= resolve_linker (%linkers_used);
2182 }
2184 my @keys = sort keys %used_pfx;
2185 if (scalar @keys == 0)
2186 {
2187 # The default source for libfoo.la is libfoo.c, but for
2188 # backward compatibility we first look at libfoo_la.c,
2189 # if no default source suffix is given.
2190 my $old_default_source = "$one_file.c";
2191 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2192 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2193 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2194 if $default_source_ext =~ /[\t ]/;
2195 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2196 # TODO: Remove this backward-compatibility hack in Automake 2.0.
2197 if ($old_default_source ne $default_source
2198 && !$ext_var
2199 && (rule $old_default_source
2200 || rule '$(srcdir)/' . $old_default_source
2201 || rule '${srcdir}/' . $old_default_source
2202 || -f $old_default_source))
2203 {
2204 my $loc = $where->clone;
2205 $loc->pop_context;
2206 msg ('obsolete', $loc,
2207 "the default source for '$unxformed' has been changed "
2208 . "to '$default_source'.\n(Using '$old_default_source' for "
2209 . "backward compatibility.)");
2210 $default_source = $old_default_source;
2211 }
2212 # If a rule exists to build this source with a $(srcdir)
2213 # prefix, use that prefix in our variables too. This is for
2214 # the sake of BSD Make.
2215 if (rule '$(srcdir)/' . $default_source
2216 || rule '${srcdir}/' . $default_source)
2217 {
2218 $default_source = '$(srcdir)/' . $default_source;
2219 }
2221 define_variable ($one_file . "_SOURCES", $default_source, $where);
2222 push (@sources, $default_source);
2223 push (@dist_sources, $default_source);
2225 %linkers_used = ();
2226 my (@result) =
2227 handle_single_transform ($one_file . '_SOURCES',
2228 $one_file . '_SOURCES',
2229 $one_file, $obj,
2230 $default_source, %transform);
2231 $linker ||= resolve_linker (%linkers_used);
2232 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2233 }
2234 else
2235 {
2236 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2237 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2238 }
2240 # If we want to use 'LINK' we must make sure it is defined.
2241 if ($linker eq '')
2242 {
2243 $need_link = 1;
2244 }
2246 return $linker;
2247 }
2250 # handle_lib_objects ($XNAME, $VAR)
2251 # ---------------------------------
2252 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2253 # Also, generate _DEPENDENCIES variable if appropriate.
2254 # Arguments are:
2255 # transformed name of object being built, or empty string if no object
2256 # name of _LDADD/_LIBADD-type variable to examine
2257 # Returns 1 if LIBOBJS seen, 0 otherwise.
2258 sub handle_lib_objects
2259 {
2260 my ($xname, $varname) = @_;
2262 my $var = var ($varname);
2263 prog_error "'$varname' undefined"
2264 unless $var;
2265 prog_error "unexpected variable name '$varname'"
2266 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2267 my $prefix = $1 || 'AM_';
2269 my $seen_libobjs = 0;
2270 my $flagvar = 0;
2272 transform_variable_recursively
2273 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2274 ! $xname, INTERNAL,
2275 # Transformation function, run on each filename.
2276 sub {
2277 my ($subvar, $val, $cond, $full_cond) = @_;
2279 if ($val =~ /^-/)
2280 {
2281 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2282 if ($val !~ /^-[lL]/ &&
2283 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2284 # for Libtool libraries or programs. (Actually we are a bit
2285 # lax here since this code also applies to non-libtool
2286 # libraries or programs, for which -dlopen and -dlopreopen
2287 # are pure nonsense. Diagnosing this doesn't seem very
2288 # important: the developer will quickly get complaints from
2289 # the linker.)
2290 $val !~ /^-dl(?:pre)?open$/ &&
2291 # Only get this error once.
2292 ! $flagvar)
2293 {
2294 $flagvar = 1;
2295 # FIXME: should display a stack of nested variables
2296 # as context when $var != $subvar.
2297 err_var ($var, "linker flags such as '$val' belong in "
2298 . "'${prefix}LDFLAGS'");
2299 }
2300 return ();
2301 }
2302 elsif ($val !~ /^\@.*\@$/)
2303 {
2304 # Assume we have a file of some sort, and output it into the
2305 # dependency variable. Autoconf substitutions are not output;
2306 # rarely is a new dependency substituted into e.g. foo_LDADD
2307 # -- but bad things (e.g. -lX11) are routinely substituted.
2308 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2309 # and handled specially below.
2310 return $val;
2311 }
2312 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2313 {
2314 handle_LIBOBJS ($subvar, $cond, $1);
2315 $seen_libobjs = 1;
2316 return $val;
2317 }
2318 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2319 {
2320 handle_ALLOCA ($subvar, $cond, $1);
2321 return $val;
2322 }
2323 else
2324 {
2325 return ();
2326 }
2327 });
2329 return $seen_libobjs;
2330 }
2332 # handle_LIBOBJS_or_ALLOCA ($VAR, $BASE)
2333 # --------------------------------------
2334 # Definitions common to LIBOBJS and ALLOCA.
2335 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2336 # BASE should be one base file name from AC_LIBSOURCE, or alloca.
2337 sub handle_LIBOBJS_or_ALLOCA
2338 {
2339 my ($var, $base) = @_;
2341 my $dir = '';
2343 # If LIBOBJS files must be built in another directory we have
2344 # to define LIBOBJDIR and ensure the files get cleaned.
2345 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2346 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2347 if ($config_libobj_dir
2348 && $relative_dir ne $config_libobj_dir)
2349 {
2350 if (option 'subdir-objects')
2351 {
2352 # In the top-level Makefile we do not use $(top_builddir), because
2353 # we are already there, and since the targets are built without
2354 # a $(top_builddir), it helps BSD Make to match them with
2355 # dependencies.
2356 $dir = "$config_libobj_dir/"
2357 if $config_libobj_dir ne '.';
2358 $dir = backname ($relative_dir) . "/$dir"
2359 if $relative_dir ne '.';
2360 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2361 if ($dir && !defined $clean_files{"$dir$base.\$(OBJEXT)"})
2362 {
2363 my $dirstamp = require_build_directory ($dir);
2364 $output_rules .= "$dir$base.\$(OBJEXT): $dirstamp\n";
2365 $output_rules .= "$dir$base.lo: $dirstamp\n"
2366 if ($var =~ /^LT/);
2367 }
2368 # libtool might create .$(OBJEXT) as a side-effect of using
2369 # LTLIBOBJS or LTALLOCA.
2370 $clean_files{"$dir$base.\$(OBJEXT)"} = MOSTLY_CLEAN;
2371 $clean_files{"$dir$base.lo"} = MOSTLY_CLEAN
2372 if ($var =~ /^LT/);
2373 }
2374 else
2375 {
2376 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2377 . " 'subdir-objects' is not set");
2378 }
2379 }
2381 return $dir;
2382 }
2384 sub handle_LIBOBJS
2385 {
2386 my ($var, $cond, $lt) = @_;
2387 my $myobjext = $lt ? 'lo' : 'o';
2388 $lt ||= '';
2390 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2391 if ! keys %libsources;
2393 foreach my $iter (keys %libsources)
2394 {
2395 my $dir = '';
2396 if ($iter =~ /^(.*)(\.[cly])$/)
2397 {
2398 saw_extension ($2);
2399 saw_extension ('.c');
2400 $dir = handle_LIBOBJS_or_ALLOCA ("${lt}LIBOBJS", $1);
2401 }
2403 if ($iter =~ /\.h$/)
2404 {
2405 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2406 }
2407 elsif ($iter ne 'alloca.c')
2408 {
2409 my $rewrite = $iter;
2410 $rewrite =~ s/\.c$/.P$myobjext/;
2411 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2412 $rewrite = "^" . quotemeta ($iter) . "\$";
2413 # Only require the file if it is not a built source.
2414 my $bs = var ('BUILT_SOURCES');
2415 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2416 {
2417 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2418 }
2419 }
2420 }
2421 }
2423 sub handle_ALLOCA
2424 {
2425 my ($var, $cond, $lt) = @_;
2426 my $myobjext = $lt ? 'lo' : 'o';
2427 $lt ||= '';
2428 my $dir = handle_LIBOBJS_or_ALLOCA ("${lt}ALLOCA", "alloca");
2430 $dir eq '' and $dir = './';
2431 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2432 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2433 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2434 saw_extension ('.c');
2435 }
2437 # Canonicalize the input parameter.
2438 sub canonicalize
2439 {
2440 my ($string) = @_;
2441 $string =~ tr/A-Za-z0-9_\@/_/c;
2442 return $string;
2443 }
2445 # Canonicalize a name, and check to make sure the non-canonical name
2446 # is never used. Returns canonical name. Arguments are name and a
2447 # list of suffixes to check for.
2448 sub check_canonical_spelling
2449 {
2450 my ($name, @suffixes) = @_;
2452 my $xname = canonicalize ($name);
2453 if ($xname ne $name)
2454 {
2455 foreach my $xt (@suffixes)
2456 {
2457 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2458 }
2459 }
2461 return $xname;
2462 }
2464 # Set up the compile suite.
2465 sub handle_compile ()
2466 {
2467 return if ! $must_handle_compiled_objects;
2469 # Boilerplate.
2470 my $default_includes = '';
2471 if (! option 'nostdinc')
2472 {
2473 my @incs = ('-I.', subst ('am__isrc'));
2475 my $var = var 'CONFIG_HEADER';
2476 if ($var)
2477 {
2478 foreach my $hdr (split (' ', $var->variable_value))
2479 {
2480 push @incs, '-I' . dirname ($hdr);
2481 }
2482 }
2483 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2484 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2485 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2486 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2487 # to just put @am__isrc@ right after '-I.', without a space.
2488 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2489 }
2491 my (@mostly_rms, @dist_rms);
2492 foreach my $item (sort keys %compile_clean_files)
2493 {
2494 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2495 {
2496 push (@mostly_rms, "\t-rm -f $item");
2497 }
2498 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2499 {
2500 push (@dist_rms, "\t-rm -f $item");
2501 }
2502 else
2503 {
2504 prog_error 'invalid entry in %compile_clean_files';
2505 }
2506 }
2508 my ($coms, $vars, $rules) =
2509 file_contents_internal (1, "$libdir/am/compile.am",
2510 new Automake::Location,
2511 'DEFAULT_INCLUDES' => $default_includes,
2512 'MOSTLYRMS' => join ("\n", @mostly_rms),
2513 'DISTRMS' => join ("\n", @dist_rms));
2514 $output_vars .= $vars;
2515 $output_rules .= "$coms$rules";
2516 }
2518 # Handle libtool rules.
2519 sub handle_libtool ()
2520 {
2521 return unless var ('LIBTOOL');
2523 # Libtool requires some files, but only at top level.
2524 # (Starting with Libtool 2.0 we do not have to bother. These
2525 # requirements are done with AC_REQUIRE_AUX_FILE.)
2526 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2527 if $relative_dir eq '.' && ! $libtool_new_api;
2529 my @libtool_rms;
2530 foreach my $item (sort keys %libtool_clean_directories)
2531 {
2532 my $dir = ($item eq '.') ? '' : "$item/";
2533 # .libs is for Unix, _libs for DOS.
2534 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2535 }
2537 check_user_variables 'LIBTOOLFLAGS';
2539 # Output the libtool compilation rules.
2540 $output_rules .= file_contents ('libtool',
2541 new Automake::Location,
2542 LTRMS => join ("\n", @libtool_rms));
2543 }
2545 # Check for duplicate targets
2546 sub handle_targets ()
2547 {
2548 my %seen = ();
2549 my @dups = ();
2550 @proglist = am_install_var ('progs', 'PROGRAMS',
2551 'bin', 'sbin', 'libexec', 'pkglibexec',
2552 'noinst', 'check');
2553 @liblist = am_install_var ('libs', 'LIBRARIES',
2554 'lib', 'pkglib', 'noinst', 'check');
2555 @ltliblist = am_install_var ('ltlib', 'LTLIBRARIES',
2556 'noinst', 'lib', 'pkglib', 'check');
2558 # Record duplications that may arise after canonicalization of the
2559 # base names, in order to prevent object file clashes in the presence
2560 # of target-specific *FLAGS
2561 my @targetlist = (@proglist, @liblist, @ltliblist);
2562 foreach my $pair (@targetlist)
2563 {
2564 my $base = canonicalize (basename (@$pair[1]));
2565 push (@dup_shortnames, $base) if ($seen{$base});
2566 $seen{$base} = $base;
2567 }
2568 }
2570 sub handle_programs ()
2571 {
2572 return if ! @proglist;
2573 $must_handle_compiled_objects = 1;
2575 my $seen_global_libobjs =
2576 var ('LDADD') && handle_lib_objects ('', 'LDADD');
2578 foreach my $pair (@proglist)
2579 {
2580 my ($where, $one_file) = @$pair;
2582 my $seen_libobjs = 0;
2583 my $obj = '.$(OBJEXT)';
2585 $known_programs{$one_file} = $where;
2587 # Canonicalize names and check for misspellings.
2588 my $xname = check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2589 '_SOURCES', '_OBJECTS',
2590 '_DEPENDENCIES');
2592 $where->push_context ("while processing program '$one_file'");
2593 $where->set (INTERNAL->get);
2595 my $linker = handle_source_transform ($xname, $one_file, $obj, $where,
2596 NONLIBTOOL => 1, LIBTOOL => 0);
2598 if (var ($xname . "_LDADD"))
2599 {
2600 $seen_libobjs = handle_lib_objects ($xname, $xname . '_LDADD');
2601 }
2602 else
2603 {
2604 # User didn't define prog_LDADD override. So do it.
2605 define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2607 # This does a bit too much work. But we need it to
2608 # generate _DEPENDENCIES when appropriate.
2609 if (var ('LDADD'))
2610 {
2611 $seen_libobjs = handle_lib_objects ($xname, 'LDADD');
2612 }
2613 }
2615 reject_var ($xname . '_LIBADD',
2616 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2618 set_seen ($xname . '_DEPENDENCIES');
2619 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2620 set_seen ($xname . '_LDFLAGS');
2622 # Determine program to use for link.
2623 my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xname);
2624 $vlink = verbose_flag ($vlink || 'GEN');
2626 # If the resulting program lies in a subdirectory,
2627 # ensure that the directory exists before we need it.
2628 my $dirstamp = require_build_directory_maybe ($one_file);
2630 $libtool_clean_directories{dirname ($one_file)} = 1;
2632 $output_rules .= file_contents ('program',
2633 $where,
2634 PROGRAM => $one_file,
2635 XPROGRAM => $xname,
2636 XLINK => $xlink,
2637 VERBOSE => $vlink,
2638 DIRSTAMP => $dirstamp,
2639 EXEEXT => '$(EXEEXT)');
2641 if ($seen_libobjs || $seen_global_libobjs)
2642 {
2643 if (var ($xname . '_LDADD'))
2644 {
2645 check_libobjs_sources ($xname, $xname . '_LDADD');
2646 }
2647 elsif (var ('LDADD'))
2648 {
2649 check_libobjs_sources ($xname, 'LDADD');
2650 }
2651 }
2652 }
2653 }
2656 sub handle_libraries ()
2657 {
2658 return if ! @liblist;
2659 $must_handle_compiled_objects = 1;
2661 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2662 'noinst', 'check');
2664 if (@prefix)
2665 {
2666 my $var = rvar ($prefix[0] . '_LIBRARIES');
2667 $var->requires_variables ('library used', 'RANLIB');
2668 }
2670 define_variable ('AR', 'ar', INTERNAL);
2671 define_variable ('ARFLAGS', 'cru', INTERNAL);
2672 define_verbose_tagvar ('AR');
2674 foreach my $pair (@liblist)
2675 {
2676 my ($where, $onelib) = @$pair;
2678 my $seen_libobjs = 0;
2679 # Check that the library fits the standard naming convention.
2680 my $bn = basename ($onelib);
2681 if ($bn !~ /^lib.*\.a$/)
2682 {
2683 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2684 my $suggestion = dirname ($onelib) . "/$bn";
2685 $suggestion =~ s|^\./||g;
2686 msg ('error-gnu/warn', $where,
2687 "'$onelib' is not a standard library name\n"
2688 . "did you mean '$suggestion'?")
2689 }
2691 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2693 $where->push_context ("while processing library '$onelib'");
2694 $where->set (INTERNAL->get);
2696 my $obj = '.$(OBJEXT)';
2698 # Canonicalize names and check for misspellings.
2699 my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2700 '_OBJECTS', '_DEPENDENCIES',
2701 '_AR');
2703 if (! var ($xlib . '_AR'))
2704 {
2705 define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2706 }
2708 # Generate support for conditional object inclusion in
2709 # libraries.
2710 if (var ($xlib . '_LIBADD'))
2711 {
2712 if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2713 {
2714 $seen_libobjs = 1;
2715 }
2716 }
2717 else
2718 {
2719 define_variable ($xlib . "_LIBADD", '', $where);
2720 }
2722 reject_var ($xlib . '_LDADD',
2723 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2725 # Make sure we at look at this.
2726 set_seen ($xlib . '_DEPENDENCIES');
2727 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2729 handle_source_transform ($xlib, $onelib, $obj, $where,
2730 NONLIBTOOL => 1, LIBTOOL => 0);
2732 # If the resulting library lies in a subdirectory,
2733 # make sure this directory will exist.
2734 my $dirstamp = require_build_directory_maybe ($onelib);
2735 my $verbose = verbose_flag ('AR');
2736 my $silent = silent_flag ();
2738 $output_rules .= file_contents ('library',
2739 $where,
2740 VERBOSE => $verbose,
2741 SILENT => $silent,
2742 LIBRARY => $onelib,
2743 XLIBRARY => $xlib,
2744 DIRSTAMP => $dirstamp);
2746 if ($seen_libobjs)
2747 {
2748 if (var ($xlib . '_LIBADD'))
2749 {
2750 check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2751 }
2752 }
2754 if (! $seen_ar)
2755 {
2756 msg ('extra-portability', $where,
2757 "'$onelib': linking libraries using a non-POSIX\n"
2758 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2759 }
2760 }
2761 }
2764 sub handle_ltlibraries ()
2765 {
2766 return if ! @ltliblist;
2767 $must_handle_compiled_objects = 1;
2769 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2770 'noinst', 'check');
2772 if (@prefix)
2773 {
2774 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2775 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2776 }
2778 my %instdirs = ();
2779 my %instsubdirs = ();
2780 my %instconds = ();
2781 my %liblocations = (); # Location (in Makefile.am) of each library.
2783 foreach my $key (@prefix)
2784 {
2785 # Get the installation directory of each library.
2786 my $dir = $key;
2787 my $strip_subdir = 1;
2788 if ($dir =~ /^nobase_/)
2789 {
2790 $dir =~ s/^nobase_//;
2791 $strip_subdir = 0;
2792 }
2793 my $var = rvar ($key . '_LTLIBRARIES');
2795 # We reject libraries which are installed in several places
2796 # in the same condition, because we can only specify one
2797 # '-rpath' option.
2798 $var->traverse_recursively
2799 (sub
2800 {
2801 my ($var, $val, $cond, $full_cond) = @_;
2802 my $hcond = $full_cond->human;
2803 my $where = $var->rdef ($cond)->location;
2804 my $ldir = '';
2805 $ldir = '/' . dirname ($val)
2806 if (!$strip_subdir);
2807 # A library cannot be installed in different directories
2808 # in overlapping conditions.
2809 if (exists $instconds{$val})
2810 {
2811 my ($msg, $acond) =
2812 $instconds{$val}->ambiguous_p ($val, $full_cond);
2814 if ($msg)
2815 {
2816 error ($where, $msg, partial => 1);
2817 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2818 $dirtxt = "built for '$dir'"
2819 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2820 my $dircond =
2821 $full_cond->true ? "" : " in condition $hcond";
2823 error ($where, "'$val' should be $dirtxt$dircond ...",
2824 partial => 1);
2826 my $hacond = $acond->human;
2827 my $adir = $instdirs{$val}{$acond};
2828 my $adirtxt = "installed in '$adir'";
2829 $adirtxt = "built for '$adir'"
2830 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2831 || $adir eq 'check');
2832 my $adircond = $acond->true ? "" : " in condition $hacond";
2834 my $onlyone = ($dir ne $adir) ?
2835 ("\nLibtool libraries can be built for only one "
2836 . "destination") : "";
2838 error ($liblocations{$val}{$acond},
2839 "... and should also be $adirtxt$adircond.$onlyone");
2840 return;
2841 }
2842 }
2843 else
2844 {
2845 $instconds{$val} = new Automake::DisjConditions;
2846 }
2847 $instdirs{$val}{$full_cond} = $dir;
2848 $instsubdirs{$val}{$full_cond} = $ldir;
2849 $liblocations{$val}{$full_cond} = $where;
2850 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2851 },
2852 sub
2853 {
2854 return ();
2855 },
2856 skip_ac_subst => 1);
2857 }
2859 foreach my $pair (@ltliblist)
2860 {
2861 my ($where, $onelib) = @$pair;
2863 my $seen_libobjs = 0;
2864 my $obj = '.lo';
2866 # Canonicalize names and check for misspellings.
2867 my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2868 '_SOURCES', '_OBJECTS',
2869 '_DEPENDENCIES');
2871 # Check that the library fits the standard naming convention.
2872 my $libname_rx = '^lib.*\.la';
2873 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2874 my $ldvar2 = var ('LDFLAGS');
2875 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2876 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2877 {
2878 # Relax name checking for libtool modules.
2879 $libname_rx = '\.la';
2880 }
2882 my $bn = basename ($onelib);
2883 if ($bn !~ /$libname_rx$/)
2884 {
2885 my $type = 'library';
2886 if ($libname_rx eq '\.la')
2887 {
2888 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2889 $type = 'module';
2890 }
2891 else
2892 {
2893 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2894 }
2895 my $suggestion = dirname ($onelib) . "/$bn";
2896 $suggestion =~ s|^\./||g;
2897 msg ('error-gnu/warn', $where,
2898 "'$onelib' is not a standard libtool $type name\n"
2899 . "did you mean '$suggestion'?")
2900 }
2902 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2904 $where->push_context ("while processing Libtool library '$onelib'");
2905 $where->set (INTERNAL->get);
2907 # Make sure we look at these.
2908 set_seen ($xlib . '_LDFLAGS');
2909 set_seen ($xlib . '_DEPENDENCIES');
2910 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2912 # Generate support for conditional object inclusion in
2913 # libraries.
2914 if (var ($xlib . '_LIBADD'))
2915 {
2916 if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2917 {
2918 $seen_libobjs = 1;
2919 }
2920 }
2921 else
2922 {
2923 define_variable ($xlib . "_LIBADD", '', $where);
2924 }
2926 reject_var ("${xlib}_LDADD",
2927 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2930 my $linker = handle_source_transform ($xlib, $onelib, $obj, $where,
2931 NONLIBTOOL => 0, LIBTOOL => 1);
2933 # Determine program to use for link.
2934 my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xlib);
2935 $vlink = verbose_flag ($vlink || 'GEN');
2937 my $rpathvar = "am_${xlib}_rpath";
2938 my $rpath = "\$($rpathvar)";
2939 foreach my $rcond ($instconds{$onelib}->conds)
2940 {
2941 my $val;
2942 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2943 || $instdirs{$onelib}{$rcond} eq 'noinst'
2944 || $instdirs{$onelib}{$rcond} eq 'check')
2945 {
2946 # It's an EXTRA_ library, so we can't specify -rpath,
2947 # because we don't know where the library will end up.
2948 # The user probably knows, but generally speaking automake
2949 # doesn't -- and in fact configure could decide
2950 # dynamically between two different locations.
2951 $val = '';
2952 }
2953 else
2954 {
2955 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2956 $val .= $instsubdirs{$onelib}{$rcond}
2957 if defined $instsubdirs{$onelib}{$rcond};
2958 }
2959 if ($rcond->true)
2960 {
2961 # If $rcond is true there is only one condition and
2962 # there is no point defining an helper variable.
2963 $rpath = $val;
2964 }
2965 else
2966 {
2967 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2968 }
2969 }
2971 # If the resulting library lies in a subdirectory,
2972 # make sure this directory will exist.
2973 my $dirstamp = require_build_directory_maybe ($onelib);
2975 # Remember to cleanup .libs/ in this directory.
2976 my $dirname = dirname $onelib;
2977 $libtool_clean_directories{$dirname} = 1;
2979 $output_rules .= file_contents ('ltlibrary',
2980 $where,
2981 LTLIBRARY => $onelib,
2982 XLTLIBRARY => $xlib,
2983 RPATH => $rpath,
2984 XLINK => $xlink,
2985 VERBOSE => $vlink,
2986 DIRSTAMP => $dirstamp);
2987 if ($seen_libobjs)
2988 {
2989 if (var ($xlib . '_LIBADD'))
2990 {
2991 check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2992 }
2993 }
2995 if (! $seen_ar)
2996 {
2997 msg ('extra-portability', $where,
2998 "'$onelib': linking libtool libraries using a non-POSIX\n"
2999 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
3000 }
3001 }
3002 }
3004 # See if any _SOURCES variable were misspelled.
3005 sub check_typos ()
3006 {
3007 # It is ok if the user sets this particular variable.
3008 set_seen 'AM_LDFLAGS';
3010 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3011 {
3012 foreach my $var (variables $primary)
3013 {
3014 my $varname = $var->name;
3015 # A configure variable is always legitimate.
3016 next if exists $configure_vars{$varname};
3018 for my $cond ($var->conditions->conds)
3019 {
3020 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3021 msg_var ('syntax', $var, "variable '$varname' is defined but no"
3022 . " program or\nlibrary has '$1' as canonical name"
3023 . " (possible typo)")
3024 unless $var->rdef ($cond)->seen;
3025 }
3026 }
3027 }
3028 }
3031 sub handle_scripts ()
3032 {
3033 # NOTE we no longer automatically clean SCRIPTS, because it is
3034 # useful to sometimes distribute scripts verbatim. This happens
3035 # e.g. in Automake itself.
3036 am_install_var ('-candist', 'scripts', 'SCRIPTS',
3037 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
3038 'noinst', 'check');
3039 }
3042 ## ------------------------ ##
3043 ## Handling Texinfo files. ##
3044 ## ------------------------ ##
3046 # ($OUTFILE, $VFILE)
3047 # scan_texinfo_file ($FILENAME)
3048 # -----------------------------
3049 # $OUTFILE - name of the info file produced by $FILENAME.
3050 # $VFILE - name of the version.texi file used (undef if none).
3051 sub scan_texinfo_file
3052 {
3053 my ($filename) = @_;
3055 my $texi = new Automake::XFile "< $filename";
3056 verb "reading $filename";
3058 my ($outfile, $vfile);
3059 while ($_ = $texi->getline)
3060 {
3061 if (/^\@setfilename +(\S+)/)
3062 {
3063 # Honor only the first @setfilename. (It's possible to have
3064 # more occurrences later if the manual shows examples of how
3065 # to use @setfilename...)
3066 next if $outfile;
3068 $outfile = $1;
3069 if (index ($outfile, '.') < 0)
3070 {
3071 msg 'obsolete', "$filename:$.",
3072 "use of suffix-less info files is discouraged"
3073 }
3074 elsif ($outfile !~ /\.info$/)
3075 {
3076 error ("$filename:$.",
3077 "output '$outfile' has unrecognized extension");
3078 return;
3079 }
3080 }
3081 # A "version.texi" file is actually any file whose name matches
3082 # "vers*.texi".
3083 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3084 {
3085 $vfile = $1;
3086 }
3087 }
3089 if (! $outfile)
3090 {
3091 err_am "'$filename' missing \@setfilename";
3092 return;
3093 }
3095 return ($outfile, $vfile);
3096 }
3099 # ($DIRSTAMP, @CLEAN_FILES)
3100 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3101 # ------------------------------------------------------------------
3102 # SOURCE - the source Texinfo file
3103 # DEST - the destination Info file
3104 # INSRC - whether DEST should be built in the source tree
3105 # DEPENDENCIES - known dependencies
3106 sub output_texinfo_build_rules
3107 {
3108 my ($source, $dest, $insrc, @deps) = @_;
3110 # Split 'a.texi' into 'a' and '.texi'.
3111 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3112 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3114 $ssfx ||= "";
3115 $dsfx ||= "";
3117 # We can output two kinds of rules: the "generic" rules use Make
3118 # suffix rules and are appropriate when $source and $dest do not lie
3119 # in a sub-directory; the "specific" rules are needed in the other
3120 # case.
3121 #
3122 # The former are output only once (this is not really apparent here,
3123 # but just remember that some logic deeper in Automake will not
3124 # output the same rule twice); while the later need to be output for
3125 # each Texinfo source.
3126 my $generic;
3127 my $makeinfoflags;
3128 my $sdir = dirname $source;
3129 if ($sdir eq '.' && dirname ($dest) eq '.')
3130 {
3131 $generic = 1;
3132 $makeinfoflags = '-I $(srcdir)';
3133 }
3134 else
3135 {
3136 $generic = 0;
3137 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3138 }
3140 # A directory can contain two kinds of info files: some built in the
3141 # source tree, and some built in the build tree. The rules are
3142 # different in each case. However we cannot output two different
3143 # set of generic rules. Because in-source builds are more usual, we
3144 # use generic rules in this case and fall back to "specific" rules
3145 # for build-dir builds. (It should not be a problem to invert this
3146 # if needed.)
3147 $generic = 0 unless $insrc;
3149 # We cannot use a suffix rule to build info files with an empty
3150 # extension. Otherwise we would output a single suffix inference
3151 # rule, with separate dependencies, as in
3152 #
3153 # .texi:
3154 # $(MAKEINFO) ...
3155 # foo.info: foo.texi
3156 #
3157 # which confuse Solaris make. (See the Autoconf manual for
3158 # details.) Therefore we use a specific rule in this case. This
3159 # applies to info files only (dvi and pdf files always have an
3160 # extension).
3161 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3163 # If the resulting file lies in a subdirectory,
3164 # make sure this directory will exist.
3165 my $dirstamp = require_build_directory_maybe ($dest);
3167 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3169 $output_rules .= file_contents ('texibuild',
3170 new Automake::Location,
3171 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3172 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3173 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3174 DEPS => "@deps",
3175 DEST_PREFIX => $dpfx,
3176 DEST_INFO_PREFIX => $dipfx,
3177 DEST_SUFFIX => $dsfx,
3178 DIRSTAMP => $dirstamp,
3179 GENERIC => $generic,
3180 GENERIC_INFO => $generic_info,
3181 INSRC => $insrc,
3182 MAKEINFOFLAGS => $makeinfoflags,
3183 SILENT => silent_flag(),
3184 SOURCE => ($generic
3185 ? '$<' : $source),
3186 SOURCE_INFO => ($generic_info
3187 ? '$<' : $source),
3188 SOURCE_REAL => $source,
3189 SOURCE_SUFFIX => $ssfx,
3190 TEXIQUIET => verbose_flag('texinfo'),
3191 TEXIDEVNULL => verbose_flag('texidevnull'),
3192 );
3193 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3194 }
3197 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3198 # handle_texinfo_helper ($info_texinfos)
3199 # --------------------------------------
3200 # Handle all Texinfo source; helper for 'handle_texinfo'.
3201 sub handle_texinfo_helper
3202 {
3203 my ($info_texinfos) = @_;
3204 my (@infobase, @info_deps_list, @texi_deps);
3205 my %versions;
3206 my $done = 0;
3207 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3209 # Build a regex matching user-cleaned files.
3210 my $d = var 'DISTCLEANFILES';
3211 my $c = var 'CLEANFILES';
3212 my @f = ();
3213 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3214 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3215 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3216 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3218 foreach my $texi
3219 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3220 {
3221 my $infobase = $texi;
3222 if ($infobase =~ s/\.texi$//)
3223 {
3224 1; # Nothing more to do.
3225 }
3226 elsif ($infobase =~ s/\.(txi|texinfo)$//)
3227 {
3228 msg_var 'obsolete', $info_texinfos,
3229 "suffix '.$1' for Texinfo files is discouraged;" .
3230 " use '.texi' instead";
3231 }
3232 else
3233 {
3234 # FIXME: report line number.
3235 err_am "texinfo file '$texi' has unrecognized extension";
3236 next;
3237 }
3239 push @infobase, $infobase;
3241 # If 'version.texi' is referenced by input file, then include
3242 # automatic versioning capability.
3243 my ($out_file, $vtexi) =
3244 scan_texinfo_file ("$relative_dir/$texi")
3245 or next;
3246 # Directory of auxiliary files and build by-products used by texi2dvi
3247 # and texi2pdf.
3248 push @mostly_cleans, "$infobase.t2d";
3249 push @mostly_cleans, "$infobase.t2p";
3251 # If the Texinfo source is in a subdirectory, create the
3252 # resulting info in this subdirectory. If it is in the current
3253 # directory, try hard to not prefix "./" because it breaks the
3254 # generic rules.
3255 my $outdir = dirname ($texi) . '/';
3256 $outdir = "" if $outdir eq './';
3257 $out_file = $outdir . $out_file;
3259 # Until Automake 1.6.3, .info files were built in the
3260 # source tree. This was an obstacle to the support of
3261 # non-distributed .info files, and non-distributed .texi
3262 # files.
3263 #
3264 # * Non-distributed .texi files is important in some packages
3265 # where .texi files are built at make time, probably using
3266 # other binaries built in the package itself, maybe using
3267 # tools or information found on the build host. Because
3268 # these files are not distributed they are always rebuilt
3269 # at make time; they should therefore not lie in the source
3270 # directory. One plan was to support this using
3271 # nodist_info_TEXINFOS or something similar. (Doing this
3272 # requires some sanity checks. For instance Automake should
3273 # not allow:
3274 # dist_info_TEXINFOS = foo.texi
3275 # nodist_foo_TEXINFOS = included.texi
3276 # because a distributed file should never depend on a
3277 # non-distributed file.)
3278 #
3279 # * If .texi files are not distributed, then .info files should
3280 # not be distributed either. There are also cases where one
3281 # wants to distribute .texi files, but does not want to
3282 # distribute the .info files. For instance the Texinfo package
3283 # distributes the tool used to build these files; it would
3284 # be a waste of space to distribute them. It's not clear
3285 # which syntax we should use to indicate that .info files should
3286 # not be distributed. Akim Demaille suggested that eventually
3287 # we switch to a new syntax:
3288 # | Maybe we should take some inspiration from what's already
3289 # | done in the rest of Automake. Maybe there is too much
3290 # | syntactic sugar here, and you want
3291 # | nodist_INFO = bar.info
3292 # | dist_bar_info_SOURCES = bar.texi
3293 # | bar_texi_DEPENDENCIES = foo.texi
3294 # | with a bit of magic to have bar.info represent the whole
3295 # | bar*info set. That's a lot more verbose that the current
3296 # | situation, but it is # not new, hence the user has less
3297 # | to learn.
3298 # |
3299 # | But there is still too much room for meaningless specs:
3300 # | nodist_INFO = bar.info
3301 # | dist_bar_info_SOURCES = bar.texi
3302 # | dist_PS = bar.ps something-written-by-hand.ps
3303 # | nodist_bar_ps_SOURCES = bar.texi
3304 # | bar_texi_DEPENDENCIES = foo.texi
3305 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3306 #
3307 # Back to the point, it should be clear that in order to support
3308 # non-distributed .info files, we need to build them in the
3309 # build tree, not in the source tree (non-distributed .texi
3310 # files are less of a problem, because we do not output build
3311 # rules for them). In Automake 1.7 .info build rules have been
3312 # largely cleaned up so that .info files get always build in the
3313 # build tree, even when distributed. The idea was that
3314 # (1) if during a VPATH build the .info file was found to be
3315 # absent or out-of-date (in the source tree or in the
3316 # build tree), Make would rebuild it in the build tree.
3317 # If an up-to-date source-tree of the .info file existed,
3318 # make would not rebuild it in the build tree.
3319 # (2) having two copies of .info files, one in the source tree
3320 # and one (newer) in the build tree is not a problem
3321 # because 'make dist' always pick files in the build tree
3322 # first.
3323 # However it turned out the be a bad idea for several reasons:
3324 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3325 # like GNU Make on point (1) above. These implementations
3326 # of Make would always rebuild .info files in the build
3327 # tree, even if such files were up to date in the source
3328 # tree. Consequently, it was impossible to perform a VPATH
3329 # build of a package containing Texinfo files using these
3330 # Make implementations.
3331 # (Refer to the Autoconf Manual, section "Limitation of
3332 # Make", paragraph "VPATH", item "target lookup", for
3333 # an account of the differences between these
3334 # implementations.)
3335 # * The GNU Coding Standards require these files to be built
3336 # in the source-tree (when they are distributed, that is).
3337 # * Keeping a fresher copy of distributed files in the
3338 # build tree can be annoying during development because
3339 # - if the files is kept under CVS, you really want it
3340 # to be updated in the source tree
3341 # - it is confusing that 'make distclean' does not erase
3342 # all files in the build tree.
3343 #
3344 # Consequently, starting with Automake 1.8, .info files are
3345 # built in the source tree again. Because we still plan to
3346 # support non-distributed .info files at some point, we
3347 # have a single variable ($INSRC) that controls whether
3348 # the current .info file must be built in the source tree
3349 # or in the build tree. Actually this variable is switched
3350 # off in two cases:
3351 # (1) For '.info' files that appear to be cleaned; this is for
3352 # backward compatibility with package such as Texinfo,
3353 # which do things like
3354 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3355 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3356 # # Do not create info files for distribution.
3357 # dist-info:
3358 # in order not to distribute .info files.
3359 # (2) When the undocumented option 'info-in-builddir' is given.
3360 # This is done to allow the developers of GCC, GDB, GNU
3361 # binutils and the GNU bfd library to force the '.info' files
3362 # to be generated in the builddir rather than the srcdir, as
3363 # was once done when the (now removed) 'cygnus' option was
3364 # given. See automake bug#11034 for more discussion.
3365 my $insrc = 1;
3366 my $soutdir = '$(srcdir)/' . $outdir;
3368 if (option 'info-in-builddir')
3369 {
3370 $insrc = 0;
3371 }
3372 elsif ($out_file =~ $user_cleaned_files)
3373 {
3374 $insrc = 0;
3375 msg 'obsolete', "$am_file.am", <<EOF;
3376 Oops!
3377 It appears this file (or files included by it) are triggering
3378 an undocumented, soon-to-be-removed automake hack.
3379 Future automake versions will no longer place in the builddir
3380 (rather than in the srcdir) the generated '.info' files that
3381 appear to be cleaned, by e.g. being listed in CLEANFILES or
3382 DISTCLEANFILES.
3383 If you want your '.info' files to be placed in the builddir
3384 rather than in the srcdir, you have to use the shiny new
3385 'info-in-builddir' automake option.
3386 EOF
3387 }
3389 $outdir = $soutdir if $insrc;
3391 # If user specified file_TEXINFOS, then use that as explicit
3392 # dependency list.
3393 @texi_deps = ();
3394 push (@texi_deps, "${soutdir}${vtexi}") if $vtexi;
3396 my $canonical = canonicalize ($infobase);
3397 if (var ($canonical . "_TEXINFOS"))
3398 {
3399 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3400 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3401 }
3403 my ($dirstamp, @cfiles) =
3404 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3405 push (@texi_cleans, @cfiles);
3407 push (@info_deps_list, $out_file);
3409 # If a vers*.texi file is needed, emit the rule.
3410 if ($vtexi)
3411 {
3412 err_am ("'$vtexi', included in '$texi', "
3413 . "also included in '$versions{$vtexi}'")
3414 if defined $versions{$vtexi};
3415 $versions{$vtexi} = $texi;
3417 # We number the stamp-vti files. This is doable since the
3418 # actual names don't matter much. We only number starting
3419 # with the second one, so that the common case looks nice.
3420 my $vti = ($done ? $done : 'vti');
3421 ++$done;
3423 # This is ugly, but it is our historical practice.
3424 if ($config_aux_dir_set_in_configure_ac)
3425 {
3426 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3427 'mdate-sh');
3428 }
3429 else
3430 {
3431 require_file_with_macro (TRUE, 'info_TEXINFOS',
3432 FOREIGN, 'mdate-sh');
3433 }
3435 my $conf_dir;
3436 if ($config_aux_dir_set_in_configure_ac)
3437 {
3438 $conf_dir = "$am_config_aux_dir/";
3439 }
3440 else
3441 {
3442 $conf_dir = '$(srcdir)/';
3443 }
3444 $output_rules .= file_contents ('texi-vers',
3445 new Automake::Location,
3446 TEXI => $texi,
3447 VTI => $vti,
3448 STAMPVTI => "${soutdir}stamp-$vti",
3449 VTEXI => "$soutdir$vtexi",
3450 MDDIR => $conf_dir,
3451 DIRSTAMP => $dirstamp);
3452 }
3453 }
3455 # Handle location of texinfo.tex.
3456 my $need_texi_file = 0;
3457 my $texinfodir;
3458 if (var ('TEXINFO_TEX'))
3459 {
3460 # The user defined TEXINFO_TEX so assume he knows what he is
3461 # doing.
3462 $texinfodir = ('$(srcdir)/'
3463 . dirname (variable_value ('TEXINFO_TEX')));
3464 }
3465 elsif ($config_aux_dir_set_in_configure_ac)
3466 {
3467 $texinfodir = $am_config_aux_dir;
3468 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3469 $need_texi_file = 2; # so that we require_conf_file later
3470 }
3471 else
3472 {
3473 $texinfodir = '$(srcdir)';
3474 $need_texi_file = 1;
3475 }
3476 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3478 push (@dist_targets, 'dist-info');
3480 if (! option 'no-installinfo')
3481 {
3482 # Make sure documentation is made and installed first. Use
3483 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3484 # get run twice during "make all".
3485 unshift (@all, '$(INFO_DEPS)');
3486 }
3488 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3489 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3490 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3491 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3493 # This next isn't strictly needed now -- the places that look here
3494 # could easily be changed to look in info_TEXINFOS. But this is
3495 # probably better, in case noinst_TEXINFOS is ever supported.
3496 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3498 # Do some error checking. Note that this file is not required
3499 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3500 # up above.
3501 if ($need_texi_file && ! option 'no-texinfo.tex')
3502 {
3503 if ($need_texi_file > 1)
3504 {
3505 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3506 'texinfo.tex');
3507 }
3508 else
3509 {
3510 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3511 'texinfo.tex');
3512 }
3513 }
3515 return (makefile_wrap ("", "\t ", @mostly_cleans),
3516 makefile_wrap ("", "\t ", @texi_cleans),
3517 makefile_wrap ("", "\t ", @maint_cleans));
3518 }
3521 sub handle_texinfo ()
3522 {
3523 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3524 # FIXME: I think this is an obsolete future feature name.
3525 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3527 my $info_texinfos = var ('info_TEXINFOS');
3528 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3529 if ($info_texinfos)
3530 {
3531 define_verbose_texinfo;
3532 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3533 chomp $mostlyclean;
3534 chomp $clean;
3535 chomp $maintclean;
3536 }
3538 $output_rules .= file_contents ('texinfos',
3539 new Automake::Location,
3540 AM_V_DVIPS => verbose_flag('DVIPS'),
3541 MOSTLYCLEAN => $mostlyclean,
3542 TEXICLEAN => $clean,
3543 MAINTCLEAN => $maintclean,
3544 'LOCAL-TEXIS' => !!$info_texinfos,
3545 TEXIQUIET => verbose_flag('texinfo'));
3546 }
3549 sub handle_man_pages ()
3550 {
3551 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3553 # Find all the sections in use. We do this by first looking for
3554 # "standard" sections, and then looking for any additional
3555 # sections used in man_MANS.
3556 my (%sections, %notrans_sections, %trans_sections,
3557 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3558 # We handle nodist_ for uniformity. man pages aren't distributed
3559 # by default so it isn't actually very important.
3560 foreach my $npfx ('', 'notrans_')
3561 {
3562 foreach my $pfx ('', 'dist_', 'nodist_')
3563 {
3564 # Add more sections as needed.
3565 foreach my $section ('0'..'9', 'n', 'l')
3566 {
3567 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3568 if (var ($varname))
3569 {
3570 $sections{$section} = 1;
3571 $varname = '$(' . $varname . ')';
3572 if ($npfx eq 'notrans_')
3573 {
3574 $notrans_sections{$section} = 1;
3575 $notrans_sect_vars{$varname} = 1;
3576 }
3577 else
3578 {
3579 $trans_sections{$section} = 1;
3580 $trans_sect_vars{$varname} = 1;
3581 }
3583 push_dist_common ($varname)
3584 if $pfx eq 'dist_';
3585 }
3586 }
3588 my $varname = $npfx . $pfx . 'man_MANS';
3589 my $var = var ($varname);
3590 if ($var)
3591 {
3592 foreach ($var->value_as_list_recursive)
3593 {
3594 # A page like 'foo.1c' goes into man1dir.
3595 if (/\.([0-9a-z])([a-z]*)$/)
3596 {
3597 $sections{$1} = 1;
3598 if ($npfx eq 'notrans_')
3599 {
3600 $notrans_sections{$1} = 1;
3601 }
3602 else
3603 {
3604 $trans_sections{$1} = 1;
3605 }
3606 }
3607 }
3609 $varname = '$(' . $varname . ')';
3610 if ($npfx eq 'notrans_')
3611 {
3612 $notrans_vars{$varname} = 1;
3613 }
3614 else
3615 {
3616 $trans_vars{$varname} = 1;
3617 }
3618 push_dist_common ($varname)
3619 if $pfx eq 'dist_';
3620 }
3621 }
3622 }
3624 return unless %sections;
3626 my @unsorted_deps;
3628 # Build section independent variables.
3629 my $have_notrans = %notrans_vars;
3630 my @notrans_list = sort keys %notrans_vars;
3631 my $have_trans = %trans_vars;
3632 my @trans_list = sort keys %trans_vars;
3634 # Now for each section, generate an install and uninstall rule.
3635 # Sort sections so output is deterministic.
3636 foreach my $section (sort keys %sections)
3637 {
3638 # Build section dependent variables.
3639 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3640 my $trans_mans = $have_trans || exists $trans_sections{$section};
3641 my (%notrans_this_sect, %trans_this_sect);
3642 my $expr = 'man' . $section . '_MANS';
3643 foreach my $varname (keys %notrans_sect_vars)
3644 {
3645 if ($varname =~ /$expr/)
3646 {
3647 $notrans_this_sect{$varname} = 1;
3648 }
3649 }
3650 foreach my $varname (keys %trans_sect_vars)
3651 {
3652 if ($varname =~ /$expr/)
3653 {
3654 $trans_this_sect{$varname} = 1;
3655 }
3656 }
3657 my @notrans_sect_list = sort keys %notrans_this_sect;
3658 my @trans_sect_list = sort keys %trans_this_sect;
3659 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3660 keys %notrans_this_sect, keys %trans_this_sect);
3661 my @deps = sort @unsorted_deps;
3662 $output_rules .= file_contents ('mans',
3663 new Automake::Location,
3664 SECTION => $section,
3665 DEPS => "@deps",
3666 NOTRANS_MANS => $notrans_mans,
3667 NOTRANS_SECT_LIST => "@notrans_sect_list",
3668 HAVE_NOTRANS => $have_notrans,
3669 NOTRANS_LIST => "@notrans_list",
3670 TRANS_MANS => $trans_mans,
3671 TRANS_SECT_LIST => "@trans_sect_list",
3672 HAVE_TRANS => $have_trans,
3673 TRANS_LIST => "@trans_list");
3674 }
3676 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3677 keys %notrans_sect_vars, keys %trans_sect_vars);
3678 my @mans = sort @unsorted_deps;
3679 $output_vars .= file_contents ('mans-vars',
3680 new Automake::Location,
3681 MANS => "@mans");
3683 push (@all, '$(MANS)')
3684 unless option 'no-installman';
3685 }
3688 sub handle_data ()
3689 {
3690 am_install_var ('-noextra', '-candist', 'data', 'DATA',
3691 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3692 'ps', 'sysconf', 'sharedstate', 'localstate',
3693 'pkgdata', 'lisp', 'noinst', 'check');
3694 }
3697 sub handle_tags ()
3698 {
3699 my @config;
3700 foreach my $spec (@config_headers)
3701 {
3702 my ($out, @ins) = split_config_file_spec ($spec);
3703 foreach my $in (@ins)
3704 {
3705 # If the config header source is in this directory,
3706 # require it.
3707 push @config, basename ($in)
3708 if $relative_dir eq dirname ($in);
3709 }
3710 }
3712 define_variable ('am__tagged_files',
3713 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3714 . "@config", INTERNAL);
3716 if (rvar('am__tagged_files')->value_as_list_recursive
3717 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3718 {
3719 $output_rules .= file_contents ('tags', new Automake::Location);
3720 set_seen 'TAGS_DEPENDENCIES';
3721 }
3722 else
3723 {
3724 reject_var ('TAGS_DEPENDENCIES',
3725 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3726 . " without\nsources or 'ETAGS_ARGS'");
3727 # Every Makefile must define some sort of TAGS rule.
3728 # Otherwise, it would be possible for a top-level "make TAGS"
3729 # to fail because some subdirectory failed. Ditto ctags and
3730 # cscope.
3731 $output_rules .=
3732 "tags TAGS:\n\n" .
3733 "ctags CTAGS:\n\n" .
3734 "cscope cscopelist:\n\n";
3735 }
3736 }
3739 # user_phony_rule ($NAME)
3740 # -----------------------
3741 # Return false if rule $NAME does not exist. Otherwise,
3742 # declare it as phony, complete its definition (in case it is
3743 # conditional), and return its Automake::Rule instance.
3744 sub user_phony_rule
3745 {
3746 my ($name) = @_;
3747 my $rule = rule $name;
3748 if ($rule)
3749 {
3750 depend ('.PHONY', $name);
3751 # Define $NAME in all condition where it is not already defined,
3752 # so that it is always OK to depend on $NAME.
3753 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3754 {
3755 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3756 $c, INTERNAL);
3757 $output_rules .= $c->subst_string . "$name:\n";
3758 }
3759 }
3760 return $rule;
3761 }
3764 # Handle 'dist' target.
3765 sub handle_dist ()
3766 {
3767 # Substitutions for distdir.am
3768 my %transform;
3770 # Define DIST_SUBDIRS. This must always be done, regardless of the
3771 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3772 my $subdirs = var ('SUBDIRS');
3773 if ($subdirs)
3774 {
3775 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3776 # to all possible directories, and use it. If DIST_SUBDIRS is
3777 # defined, just use it.
3779 # Note that we check DIST_SUBDIRS first on purpose, so that
3780 # we don't call has_conditional_contents for now reason.
3781 # (In the past one project used so many conditional subdirectories
3782 # that calling has_conditional_contents on SUBDIRS caused
3783 # automake to grow to 150Mb -- this should not happen with
3784 # the current implementation of has_conditional_contents,
3785 # but it's more efficient to avoid the call anyway.)
3786 if (var ('DIST_SUBDIRS'))
3787 {
3788 }
3789 elsif ($subdirs->has_conditional_contents)
3790 {
3791 define_pretty_variable
3792 ('DIST_SUBDIRS', TRUE, INTERNAL,
3793 uniq ($subdirs->value_as_list_recursive));
3794 }
3795 else
3796 {
3797 # We always define this because that is what 'distclean'
3798 # wants.
3799 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3800 '$(SUBDIRS)');
3801 }
3802 }
3804 # The remaining definitions are only required when a dist target is used.
3805 return if option 'no-dist';
3807 # At least one of the archive formats must be enabled.
3808 if ($relative_dir eq '.')
3809 {
3810 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3811 $archive_defined ||=
3812 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz);
3813 error (option 'no-dist-gzip',
3814 "no-dist-gzip specified but no dist-* specified,\n"
3815 . "at least one archive format must be enabled")
3816 unless $archive_defined;
3817 }
3819 # Look for common files that should be included in distribution.
3820 # If the aux dir is set, and it does not have a Makefile.am, then
3821 # we check for these files there as well.
3822 my $check_aux = 0;
3823 if ($relative_dir eq '.'
3824 && $config_aux_dir_set_in_configure_ac)
3825 {
3826 if (! is_make_dir ($config_aux_dir))
3827 {
3828 $check_aux = 1;
3829 }
3830 }
3831 foreach my $cfile (@common_files)
3832 {
3833 if (dir_has_case_matching_file ($relative_dir, $cfile)
3834 # The file might be absent, but if it can be built it's ok.
3835 || rule $cfile)
3836 {
3837 push_dist_common ($cfile);
3838 }
3840 # Don't use 'elsif' here because a file might meaningfully
3841 # appear in both directories.
3842 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3843 {
3844 push_dist_common ("$config_aux_dir/$cfile")
3845 }
3846 }
3848 # We might copy elements from @configure_dist_common to
3849 # @dist_common if we think we need to. If the file appears in our
3850 # directory, we would have discovered it already, so we don't
3851 # check that. But if the file is in a subdir without a Makefile,
3852 # we want to distribute it here if we are doing '.'. Ugly!
3853 # Also, in some corner cases, it's possible that the following code
3854 # will cause the same file to appear in the $(DIST_COMMON) variables
3855 # of two distinct Makefiles; but this is not a problem, since the
3856 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3857 # file being distributed multiple times.
3858 # See also automake bug#9651.
3859 if ($relative_dir eq '.')
3860 {
3861 foreach my $file (@configure_dist_common)
3862 {
3863 my $dir = dirname ($file);
3864 push_dist_common ($file)
3865 if ($dir eq '.' || ! is_make_dir ($dir));
3866 }
3867 @configure_dist_common = ();
3868 }
3870 # $(am__DIST_COMMON): files to be distributed automatically. Will be
3871 # appended to $(DIST_COMMON) in the generated Makefile.
3872 # Use 'sort' so that the expansion of $(DIST_COMMON) in the generated
3873 # Makefile is deterministic, in face of m4 and/or perl randomizations
3874 # (see automake bug#17908).
3875 define_pretty_variable ('am__DIST_COMMON', TRUE, INTERNAL,
3876 uniq (sort @dist_common));
3878 # Now that we've processed @dist_common, disallow further attempts
3879 # to modify it.
3880 $handle_dist_run = 1;
3882 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3883 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3885 # If the target 'dist-hook' exists, make sure it is run. This
3886 # allows users to do random weird things to the distribution
3887 # before it is packaged up.
3888 push (@dist_targets, 'dist-hook')
3889 if user_phony_rule 'dist-hook';
3890 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3892 my $flm = option ('filename-length-max');
3893 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3895 $output_rules .= file_contents ('distdir',
3896 new Automake::Location,
3897 %transform,
3898 FILENAME_FILTER => $filename_filter);
3899 }
3902 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3903 # -------------------------------------------------------
3904 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3905 # name. Use $WHERE as a location in the diagnostic, if any.
3906 sub check_directory
3907 {
3908 my ($dir, $where, $reldir) = @_;
3909 $reldir = '.' unless defined $reldir;
3911 error $where, "required directory $reldir/$dir does not exist"
3912 unless -d "$reldir/$dir";
3914 # If an 'obj/' directory exists, BSD make will enter it before
3915 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3916 # will not be read.
3917 #
3918 # % cat Makefile
3919 # all:
3920 # echo Hello
3921 # % cat obj/Makefile
3922 # all:
3923 # echo World
3924 # % make # GNU make
3925 # echo Hello
3926 # Hello
3927 # % pmake # BSD make
3928 # echo World
3929 # World
3930 msg ('portability', $where,
3931 "naming a subdirectory 'obj' causes troubles with BSD make")
3932 if $dir eq 'obj';
3934 # 'aux' is probably the most important of the following forbidden name,
3935 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3936 msg ('portability', $where,
3937 "name '$dir' is reserved on W32 and DOS platforms")
3938 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3939 }
3941 # check_directories_in_var ($VARIABLE)
3942 # ------------------------------------
3943 # Recursively check all items in variables $VARIABLE as directories
3944 sub check_directories_in_var
3945 {
3946 my ($var) = @_;
3947 $var->traverse_recursively
3948 (sub
3949 {
3950 my ($var, $val, $cond, $full_cond) = @_;
3951 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3952 return ();
3953 },
3954 undef,
3955 skip_ac_subst => 1);
3956 }
3959 sub handle_subdirs ()
3960 {
3961 my $subdirs = var ('SUBDIRS');
3962 return
3963 unless $subdirs;
3965 check_directories_in_var $subdirs;
3967 my $dsubdirs = var ('DIST_SUBDIRS');
3968 check_directories_in_var $dsubdirs
3969 if $dsubdirs;
3971 $output_rules .= file_contents ('subdirs', new Automake::Location);
3972 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3973 }
3976 # ($REGEN, @DEPENDENCIES)
3977 # scan_aclocal_m4
3978 # ---------------
3979 # If aclocal.m4 creation is automated, return the list of its dependencies.
3980 sub scan_aclocal_m4 ()
3981 {
3982 my $regen_aclocal = 0;
3984 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3985 set_seen 'CONFIGURE_DEPENDENCIES';
3987 if (-f 'aclocal.m4')
3988 {
3989 define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3991 my $aclocal = new Automake::XFile "< aclocal.m4";
3992 my $line = $aclocal->getline;
3993 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3994 }
3996 my @ac_deps = ();
3998 if (set_seen ('ACLOCAL_M4_SOURCES'))
3999 {
4000 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4001 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4002 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
4003 . "It should be safe to simply remove it");
4004 }
4006 # Note that it might be possible that aclocal.m4 doesn't exist but
4007 # should be auto-generated. This case probably isn't very
4008 # important.
4010 return ($regen_aclocal, @ac_deps);
4011 }
4014 # Helper function for 'substitute_ac_subst_variables'.
4015 sub substitute_ac_subst_variables_worker
4016 {
4017 my ($token) = @_;
4018 return "\@$token\@" if var $token;
4019 return "\${$token\}";
4020 }
4022 # substitute_ac_subst_variables ($TEXT)
4023 # -------------------------------------
4024 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4025 # variable.
4026 sub substitute_ac_subst_variables
4027 {
4028 my ($text) = @_;
4029 $text =~ s/\$[{]([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge;
4030 return $text;
4031 }
4033 # @DEPENDENCIES
4034 # prepend_srcdir (@INPUTS)
4035 # ------------------------
4036 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4037 # if an input file has a directory part the same as the current
4038 # directory, then the directory part is simply replaced by $(srcdir).
4039 # But if the directory part is different, then $(top_srcdir) is
4040 # prepended.
4041 sub prepend_srcdir
4042 {
4043 my (@inputs) = @_;
4044 my @newinputs;
4046 foreach my $single (@inputs)
4047 {
4048 if (dirname ($single) eq $relative_dir)
4049 {
4050 push (@newinputs, '$(srcdir)/' . basename ($single));
4051 }
4052 else
4053 {
4054 push (@newinputs, '$(top_srcdir)/' . $single);
4055 }
4056 }
4057 return @newinputs;
4058 }
4060 # @DEPENDENCIES
4061 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4062 # ---------------------------------------------------
4063 # Compute a list of dependencies appropriate for the rebuild
4064 # rule of
4065 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4066 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4067 sub rewrite_inputs_into_dependencies
4068 {
4069 my ($file, @inputs) = @_;
4070 my @res = ();
4072 for my $i (@inputs)
4073 {
4074 # We cannot create dependencies on shell variables.
4075 next if (substitute_ac_subst_variables $i) =~ /\$/;
4077 if (exists $ac_config_files_location{$i} && $i ne $file)
4078 {
4079 my $di = dirname $i;
4080 if ($di eq $relative_dir)
4081 {
4082 $i = basename $i;
4083 }
4084 # In the top-level Makefile we do not use $(top_builddir), because
4085 # we are already there, and since the targets are built without
4086 # a $(top_builddir), it helps BSD Make to match them with
4087 # dependencies.
4088 elsif ($relative_dir ne '.')
4089 {
4090 $i = '$(top_builddir)/' . $i;
4091 }
4092 }
4093 else
4094 {
4095 msg ('error', $ac_config_files_location{$file},
4096 "required file '$i' not found")
4097 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4098 ($i) = prepend_srcdir ($i);
4099 push_dist_common ($i);
4100 }
4101 push @res, $i;
4102 }
4103 return @res;
4104 }
4108 # handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4109 # -----------------------------------------------------------------
4110 # Handle remaking and configure stuff.
4111 # We need the name of the input file, to do proper remaking rules.
4112 sub handle_configure
4113 {
4114 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4116 prog_error 'empty @inputs'
4117 unless @inputs;
4119 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4120 $makefile_in);
4121 my $rel_makefile = basename $makefile;
4123 my $colon_infile = ':' . join (':', @inputs);
4124 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4125 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4126 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4127 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4128 @configure_deps, @aclocal_m4_deps,
4129 '$(top_srcdir)/' . $configure_ac);
4130 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4131 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4132 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4133 @configuredeps);
4135 my $automake_options = '--' . $strictness_name .
4136 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4138 $output_rules .= file_contents
4139 ('configure',
4140 new Automake::Location,
4141 MAKEFILE => $rel_makefile,
4142 'MAKEFILE-DEPS' => "@rewritten",
4143 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4144 'MAKEFILE-IN' => $rel_makefile_in,
4145 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4146 'MAKEFILE-IN-DEPS' => "@include_stack",
4147 'MAKEFILE-AM' => $rel_makefile_am,
4148 'AUTOMAKE-OPTIONS' => $automake_options,
4149 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4150 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4151 VERBOSE => verbose_flag ('GEN'));
4153 if ($relative_dir eq '.')
4154 {
4155 push_dist_common ('acconfig.h')
4156 if -f 'acconfig.h';
4157 }
4159 # If we have a configure header, require it.
4160 my $hdr_index = 0;
4161 my @distclean_config;
4162 foreach my $spec (@config_headers)
4163 {
4164 $hdr_index += 1;
4165 # $CONFIG_H_PATH: config.h from top level.
4166 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4167 my $config_h_dir = dirname ($config_h_path);
4169 # If the header is in the current directory we want to build
4170 # the header here. Otherwise, if we're at the topmost
4171 # directory and the header's directory doesn't have a
4172 # Makefile, then we also want to build the header.
4173 if ($relative_dir eq $config_h_dir
4174 || ($relative_dir eq '.' && ! is_make_dir ($config_h_dir)))
4175 {
4176 my ($cn_sans_dir, $stamp_dir);
4177 if ($relative_dir eq $config_h_dir)
4178 {
4179 $cn_sans_dir = basename ($config_h_path);
4180 $stamp_dir = '';
4181 }
4182 else
4183 {
4184 $cn_sans_dir = $config_h_path;
4185 if ($config_h_dir eq '.')
4186 {
4187 $stamp_dir = '';
4188 }
4189 else
4190 {
4191 $stamp_dir = $config_h_dir . '/';
4192 }
4193 }
4195 # This will also distribute all inputs.
4196 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4198 # Cannot define rebuild rules for filenames with shell variables.
4199 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4201 # Header defined in this directory.
4202 my @files;
4203 if (-f $config_h_path . '.top')
4204 {
4205 push (@files, "$cn_sans_dir.top");
4206 }
4207 if (-f $config_h_path . '.bot')
4208 {
4209 push (@files, "$cn_sans_dir.bot");
4210 }
4212 push_dist_common (@files);
4214 # For now, acconfig.h can only appear in the top srcdir.
4215 if (-f 'acconfig.h')
4216 {
4217 push (@files, '$(top_srcdir)/acconfig.h');
4218 }
4220 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4221 $output_rules .=
4222 file_contents ('remake-hdr',
4223 new Automake::Location,
4224 FILES => "@files",
4225 'FIRST-HDR' => ($hdr_index == 1),
4226 CONFIG_H => $cn_sans_dir,
4227 CONFIG_HIN => $ins[0],
4228 CONFIG_H_DEPS => "@ins",
4229 CONFIG_H_PATH => $config_h_path,
4230 STAMP => "$stamp");
4232 push @distclean_config, $cn_sans_dir, $stamp;
4233 }
4234 }
4236 $output_rules .= file_contents ('clean-hdr',
4237 new Automake::Location,
4238 FILES => "@distclean_config")
4239 if @distclean_config;
4241 # Distribute and define mkinstalldirs only if it is already present
4242 # in the package, for backward compatibility (some people may still
4243 # use $(mkinstalldirs)).
4244 # TODO: start warning about this in Automake 1.14, and have
4245 # TODO: Automake 2.0 drop it (and the mkinstalldirs script
4246 # TODO: as well).
4247 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4248 if (-f $mkidpath)
4249 {
4250 # Use require_file so that any existing script gets updated
4251 # by --force-missing.
4252 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4253 define_variable ('mkinstalldirs',
4254 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4255 }
4256 else
4257 {
4258 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4259 # at least one argument, and $(mkinstalldirs) used to work
4260 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4261 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4262 }
4264 reject_var ('CONFIG_HEADER',
4265 "'CONFIG_HEADER' is an anachronism; now determined "
4266 . "automatically\nfrom '$configure_ac'");
4268 my @config_h;
4269 foreach my $spec (@config_headers)
4270 {
4271 my ($out, @ins) = split_config_file_spec ($spec);
4272 # Generate CONFIG_HEADER define.
4273 if ($relative_dir eq dirname ($out))
4274 {
4275 push @config_h, basename ($out);
4276 }
4277 else
4278 {
4279 push @config_h, "\$(top_builddir)/$out";
4280 }
4281 }
4282 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4283 if @config_h;
4285 # Now look for other files in this directory which must be remade
4286 # by config.status, and generate rules for them.
4287 my @actual_other_files = ();
4288 # These get cleaned only in a VPATH build.
4289 my @actual_other_vpath_files = ();
4290 foreach my $lfile (@other_input_files)
4291 {
4292 my $file;
4293 my @inputs;
4294 if ($lfile =~ /^([^:]*):(.*)$/)
4295 {
4296 # This is the ":" syntax of AC_OUTPUT.
4297 $file = $1;
4298 @inputs = split (':', $2);
4299 }
4300 else
4301 {
4302 # Normal usage.
4303 $file = $lfile;
4304 @inputs = $file . '.in';
4305 }
4307 # Automake files should not be stored in here, but in %MAKE_LIST.
4308 prog_error ("$lfile in \@other_input_files\n"
4309 . "\@other_input_files = (@other_input_files)")
4310 if -f $file . '.am';
4312 my $local = basename ($file);
4314 # We skip files that aren't in this directory. However, if
4315 # the file's directory does not have a Makefile, and we are
4316 # currently doing '.', then we create a rule to rebuild the
4317 # file in the subdir.
4318 my $fd = dirname ($file);
4319 if ($fd ne $relative_dir)
4320 {
4321 if ($relative_dir eq '.' && ! is_make_dir ($fd))
4322 {
4323 $local = $file;
4324 }
4325 else
4326 {
4327 next;
4328 }
4329 }
4331 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4333 # Cannot output rules for shell variables.
4334 next if (substitute_ac_subst_variables $local) =~ /\$/;
4336 my $condstr = '';
4337 my $cond = $ac_config_files_condition{$lfile};
4338 if (defined $cond)
4339 {
4340 $condstr = $cond->subst_string;
4341 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4342 $ac_config_files_location{$file});
4343 }
4344 $output_rules .= ($condstr . $local . ': '
4345 . '$(top_builddir)/config.status '
4346 . "@rewritten_inputs\n"
4347 . $condstr . "\t"
4348 . 'cd $(top_builddir) && '
4349 . '$(SHELL) ./config.status '
4350 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4351 . '$@'
4352 . "\n");
4353 push (@actual_other_files, $local);
4354 }
4356 # For links we should clean destinations and distribute sources.
4357 foreach my $spec (@config_links)
4358 {
4359 my ($link, $file) = split /:/, $spec;
4360 # Some people do AC_CONFIG_LINKS($computed). We only handle
4361 # the DEST:SRC form.
4362 next unless $file;
4363 my $where = $ac_config_files_location{$link};
4365 # Skip destinations that contain shell variables.
4366 if ((substitute_ac_subst_variables $link) !~ /\$/)
4367 {
4368 # We skip links that aren't in this directory. However, if
4369 # the link's directory does not have a Makefile, and we are
4370 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4371 # in '.'s Makefile.in.
4372 my $local = basename ($link);
4373 my $fd = dirname ($link);
4374 if ($fd ne $relative_dir)
4375 {
4376 if ($relative_dir eq '.' && ! is_make_dir ($fd))
4377 {
4378 $local = $link;
4379 }
4380 else
4381 {
4382 $local = undef;
4383 }
4384 }
4385 if ($file ne $link)
4386 {
4387 push @actual_other_files, $local if $local;
4388 }
4389 else
4390 {
4391 push @actual_other_vpath_files, $local if $local;
4392 }
4393 }
4395 # Do not process sources that contain shell variables.
4396 if ((substitute_ac_subst_variables $file) !~ /\$/)
4397 {
4398 my $fd = dirname ($file);
4400 # We distribute files that are in this directory.
4401 # At the top-level ('.') we also distribute files whose
4402 # directory does not have a Makefile.
4403 if (($fd eq $relative_dir)
4404 || ($relative_dir eq '.' && ! is_make_dir ($fd)))
4405 {
4406 # The following will distribute $file as a side-effect when
4407 # it is appropriate (i.e., when $file is not already an output).
4408 # We do not need the result, just the side-effect.
4409 rewrite_inputs_into_dependencies ($link, $file);
4410 }
4411 }
4412 }
4414 # These files get removed by "make distclean".
4415 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4416 @actual_other_files);
4417 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4418 @actual_other_vpath_files);
4419 }
4421 sub handle_headers ()
4422 {
4423 my @r = am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4424 'oldinclude', 'pkginclude',
4425 'noinst', 'check');
4426 foreach (@r)
4427 {
4428 next unless $_->[1] =~ /\..*$/;
4429 saw_extension ($&);
4430 }
4431 }
4433 sub handle_gettext ()
4434 {
4435 return if ! $seen_gettext || $relative_dir ne '.';
4437 my $subdirs = var 'SUBDIRS';
4439 if (! $subdirs)
4440 {
4441 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4442 return;
4443 }
4445 # Perform some sanity checks to help users get the right setup.
4446 # We disable these tests when po/ doesn't exist in order not to disallow
4447 # unusual gettext setups.
4448 #
4449 # Bruno Haible:
4450 # | The idea is:
4451 # |
4452 # | 1) If a package doesn't have a directory po/ at top level, it
4453 # | will likely have multiple po/ directories in subpackages.
4454 # |
4455 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4456 # | is used without 'external'. It is also useful to warn for the
4457 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4458 # | warnings apply only to the usual layout of packages, therefore
4459 # | they should both be disabled if no po/ directory is found at
4460 # | top level.
4462 if (-d 'po')
4463 {
4464 my @subdirs = $subdirs->value_as_list_recursive;
4466 msg_var ('syntax', $subdirs,
4467 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4468 if ! grep ($_ eq 'po', @subdirs);
4470 # intl/ is not required when AM_GNU_GETTEXT is called with the
4471 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4472 msg_var ('syntax', $subdirs,
4473 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4474 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4475 && ! grep ($_ eq 'intl', @subdirs));
4477 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4478 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4479 msg_var ('syntax', $subdirs,
4480 "'intl' should not be in SUBDIRS when "
4481 . "AM_GNU_GETTEXT([external]) is used")
4482 if ($seen_gettext_external && ! $seen_gettext_intl
4483 && grep ($_ eq 'intl', @subdirs));
4484 }
4486 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4487 }
4489 # Emit makefile footer.
4490 sub handle_footer ()
4491 {
4492 reject_rule ('.SUFFIXES',
4493 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4495 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4496 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4497 # anything else, by sticking it right after the default: target.
4498 $output_header .= ".SUFFIXES:\n";
4499 my $suffixes = var 'SUFFIXES';
4500 my @suffixes = Automake::Rule::suffixes;
4501 if (@suffixes || $suffixes)
4502 {
4503 # Make sure SUFFIXES has unique elements. Sort them to ensure
4504 # the output remains consistent. However, $(SUFFIXES) is
4505 # always at the start of the list, unsorted. This is done
4506 # because make will choose rules depending on the ordering of
4507 # suffixes, and this lets the user have some control. Push
4508 # actual suffixes, and not $(SUFFIXES). Some versions of make
4509 # do not like variable substitutions on the .SUFFIXES line.
4510 my @user_suffixes = ($suffixes
4511 ? $suffixes->value_as_list_recursive : ());
4513 my %suffixes = map { $_ => 1 } @suffixes;
4514 delete @suffixes{@user_suffixes};
4516 $output_header .= (".SUFFIXES: "
4517 . join (' ', @user_suffixes, sort keys %suffixes)
4518 . "\n");
4519 }
4521 $output_trailer .= file_contents ('footer', new Automake::Location);
4522 }
4525 # Generate 'make install' rules.
4526 sub handle_install ()
4527 {
4528 $output_rules .= file_contents
4529 ('install',
4530 new Automake::Location,
4531 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4532 ? (" \$(BUILT_SOURCES)\n"
4533 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4534 : ''),
4535 'installdirs-local' => (user_phony_rule ('installdirs-local')
4536 ? ' installdirs-local' : ''),
4537 am__installdirs => variable_value ('am__installdirs') || '');
4538 }
4541 # handle_all ($MAKEFILE)
4542 #-----------------------
4543 # Deal with 'all' and 'all-am'.
4544 sub handle_all
4545 {
4546 my ($makefile) = @_;
4548 # Output 'all-am'.
4550 # Put this at the beginning for the sake of non-GNU makes. This
4551 # is still wrong if these makes can run parallel jobs. But it is
4552 # right enough.
4553 unshift (@all, basename ($makefile));
4555 foreach my $spec (@config_headers)
4556 {
4557 my ($out, @ins) = split_config_file_spec ($spec);
4558 push (@all, basename ($out))
4559 if dirname ($out) eq $relative_dir;
4560 }
4562 # Install 'all' hooks.
4563 push (@all, "all-local")
4564 if user_phony_rule "all-local";
4566 pretty_print_rule ("all-am:", "\t\t", @all);
4567 depend ('.PHONY', 'all-am', 'all');
4570 # Output 'all'.
4572 my @local_headers = ();
4573 push @local_headers, '$(BUILT_SOURCES)'
4574 if var ('BUILT_SOURCES');
4575 foreach my $spec (@config_headers)
4576 {
4577 my ($out, @ins) = split_config_file_spec ($spec);
4578 push @local_headers, basename ($out)
4579 if dirname ($out) eq $relative_dir;
4580 }
4582 if (@local_headers)
4583 {
4584 # We need to make sure config.h is built before we recurse.
4585 # We also want to make sure that built sources are built
4586 # before any ordinary 'all' targets are run. We can't do this
4587 # by changing the order of dependencies to the "all" because
4588 # that breaks when using parallel makes. Instead we handle
4589 # things explicitly.
4590 $output_all .= ("all: @local_headers"
4591 . "\n\t"
4592 . '$(MAKE) $(AM_MAKEFLAGS) '
4593 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4594 . "\n\n");
4595 depend ('.MAKE', 'all');
4596 }
4597 else
4598 {
4599 $output_all .= "all: " . (var ('SUBDIRS')
4600 ? 'all-recursive' : 'all-am') . "\n\n";
4601 }
4602 }
4604 # Generate helper targets for user-defined recursive targets, where needed.
4605 sub handle_user_recursion ()
4606 {
4607 return unless @extra_recursive_targets;
4609 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4610 map { "$_-recursive" } @extra_recursive_targets);
4611 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4612 foreach my $target (@extra_recursive_targets)
4613 {
4614 # This allows the default target's rules to be overridden in
4615 # Makefile.am.
4616 user_phony_rule ($target);
4617 depend ("$target", "$target-$aux");
4618 depend ("$target-am", "$target-local");
4619 # Every user-defined recursive target 'foo' *must* have a valid
4620 # associated 'foo-local' rule; we define it as an empty rule by
4621 # default, so that the user can transparently extend it in his
4622 # own Makefile.am.
4623 pretty_print_rule ("$target-local:", '', '');
4624 # $target-recursive might as well be undefined, so do not add
4625 # it here; it's taken care of in subdirs.am anyway.
4626 depend (".PHONY", "$target-am", "$target-local");
4627 }
4628 }
4631 # Handle check merge target specially.
4632 sub do_check_merge_target ()
4633 {
4634 # Include user-defined local form of target.
4635 push @check_tests, 'check-local'
4636 if user_phony_rule 'check-local';
4638 # The check target must depend on the local equivalent of
4639 # 'all', to ensure all the primary targets are built. Then it
4640 # must build the local check rules.
4641 $output_rules .= "check-am: all-am\n";
4642 if (@check)
4643 {
4644 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4645 depend ('.MAKE', 'check-am');
4646 }
4648 if (@check_tests)
4649 {
4650 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4651 @check_tests);
4652 depend ('.MAKE', 'check-am');
4653 }
4655 depend '.PHONY', 'check', 'check-am';
4656 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4657 $output_rules .= ("check: "
4658 . (var ('BUILT_SOURCES')
4659 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4660 : '')
4661 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4662 . "\n");
4663 depend ('.MAKE', 'check')
4664 if var ('BUILT_SOURCES');
4665 }
4667 # Handle all 'clean' targets.
4668 sub handle_clean
4669 {
4670 my ($makefile) = @_;
4672 # Clean the files listed in user variables if they exist.
4673 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4674 if var ('MOSTLYCLEANFILES');
4675 $clean_files{'$(CLEANFILES)'} = CLEAN
4676 if var ('CLEANFILES');
4677 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4678 if var ('DISTCLEANFILES');
4679 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4680 if var ('MAINTAINERCLEANFILES');
4682 # Built sources are automatically removed by maintainer-clean.
4683 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4684 if var ('BUILT_SOURCES');
4686 # Compute a list of "rm"s to run for each target.
4687 my %rms = (MOSTLY_CLEAN, [],
4688 CLEAN, [],
4689 DIST_CLEAN, [],
4690 MAINTAINER_CLEAN, []);
4692 foreach my $file (keys %clean_files)
4693 {
4694 my $when = $clean_files{$file};
4695 prog_error 'invalid entry in %clean_files'
4696 unless exists $rms{$when};
4698 my $rm = "rm -f $file";
4699 # If file is a variable, make sure when don't call 'rm -f' without args.
4700 $rm ="test -z \"$file\" || $rm"
4701 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4703 push @{$rms{$when}}, "\t-$rm\n";
4704 }
4706 $output_rules .= file_contents
4707 ('clean',
4708 new Automake::Location,
4709 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4710 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4711 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4712 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4713 MAKEFILE => basename $makefile,
4714 );
4715 }
4718 # Subroutine for handle_factored_dependencies() to let '.PHONY' and
4719 # other '.TARGETS' be last. This is meant to be used as a comparison
4720 # subroutine passed to the sort built-int.
4721 sub target_cmp
4722 {
4723 return 0 if $a eq $b;
4725 my $a1 = substr ($a, 0, 1);
4726 my $b1 = substr ($b, 0, 1);
4727 if ($a1 ne $b1)
4728 {
4729 return -1 if $b1 eq '.';
4730 return 1 if $a1 eq '.';
4731 }
4732 return $a cmp $b;
4733 }
4736 # Handle everything related to gathered targets.
4737 sub handle_factored_dependencies ()
4738 {
4739 # Reject bad hooks.
4740 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4741 'uninstall-exec-local', 'uninstall-exec-hook',
4742 'uninstall-dvi-local',
4743 'uninstall-html-local',
4744 'uninstall-info-local',
4745 'uninstall-pdf-local',
4746 'uninstall-ps-local')
4747 {
4748 my $x = $utarg;
4749 $x =~ s/-.*-/-/;
4750 reject_rule ($utarg, "use '$x', not '$utarg'");
4751 }
4753 reject_rule ('install-local',
4754 "use 'install-data-local' or 'install-exec-local', "
4755 . "not 'install-local'");
4757 reject_rule ('install-hook',
4758 "use 'install-data-hook' or 'install-exec-hook', "
4759 . "not 'install-hook'");
4761 # Install the -local hooks.
4762 foreach (keys %dependencies)
4763 {
4764 # Hooks are installed on the -am targets.
4765 s/-am$// or next;
4766 depend ("$_-am", "$_-local")
4767 if user_phony_rule "$_-local";
4768 }
4770 # Install the -hook hooks.
4771 # FIXME: Why not be as liberal as we are with -local hooks?
4772 foreach ('install-exec', 'install-data', 'uninstall')
4773 {
4774 if (user_phony_rule "$_-hook")
4775 {
4776 depend ('.MAKE', "$_-am");
4777 register_action("$_-am",
4778 ("\t\@\$(NORMAL_INSTALL)\n"
4779 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4780 }
4781 }
4783 # All the required targets are phony.
4784 depend ('.PHONY', keys %required_targets);
4786 # Actually output gathered targets.
4787 foreach (sort target_cmp keys %dependencies)
4788 {
4789 # If there is nothing about this guy, skip it.
4790 next
4791 unless (@{$dependencies{$_}}
4792 || $actions{$_}
4793 || $required_targets{$_});
4795 # Define gathered targets in undefined conditions.
4796 # FIXME: Right now we must handle .PHONY as an exception,
4797 # because people write things like
4798 # .PHONY: myphonytarget
4799 # to append dependencies. This would not work if Automake
4800 # refrained from defining its own .PHONY target as it does
4801 # with other overridden targets.
4802 # Likewise for '.MAKE' and '.PRECIOUS'.
4803 my @undefined_conds = (TRUE,);
4804 if ($_ ne '.PHONY' && $_ ne '.MAKE' && $_ ne '.PRECIOUS')
4805 {
4806 @undefined_conds =
4807 Automake::Rule::define ($_, 'internal',
4808 RULE_AUTOMAKE, TRUE, INTERNAL);
4809 }
4810 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4811 foreach my $cond (@undefined_conds)
4812 {
4813 my $condstr = $cond->subst_string;
4814 pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4815 $output_rules .= $actions{$_} if defined $actions{$_};
4816 $output_rules .= "\n";
4817 }
4818 }
4819 }
4822 sub handle_tests_dejagnu ()
4823 {
4824 push (@check_tests, 'check-DEJAGNU');
4825 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4826 }
4828 # handle_per_suffix_test ($TEST_SUFFIX, [%TRANSFORM])
4829 #----------------------------------------------------
4830 sub handle_per_suffix_test
4831 {
4832 my ($test_suffix, %transform) = @_;
4833 my ($pfx, $generic, $am_exeext);
4834 if ($test_suffix eq '')
4835 {
4836 $pfx = '';
4837 $generic = 0;
4838 $am_exeext = 'FALSE';
4839 }
4840 else
4841 {
4842 prog_error ("test suffix '$test_suffix' lacks leading dot")
4843 unless $test_suffix =~ m/^\.(.*)/;
4844 $pfx = uc ($1) . '_';
4845 $generic = 1;
4846 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4847 : 'FALSE';
4848 }
4849 # The "test driver" program, deputed to handle tests protocol used by
4850 # test scripts. By default, it's assumed that no protocol is used, so
4851 # we fall back to the old behaviour, implemented by the 'test-driver'
4852 # auxiliary script.
4853 if (! var "${pfx}LOG_DRIVER")
4854 {
4855 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4856 define_variable ("${pfx}LOG_DRIVER",
4857 "\$(SHELL) $am_config_aux_dir/test-driver",
4858 INTERNAL);
4859 }
4860 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4861 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4862 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4863 my $compile = "${pfx}LOG_COMPILE";
4864 define_variable ($compile,
4865 '$(' . $pfx . 'LOG_COMPILER)'
4866 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4867 . ' $(' . $pfx . 'LOG_FLAGS)',
4868 INTERNAL);
4869 $output_rules .= file_contents ('check2', new Automake::Location,
4870 GENERIC => $generic,
4871 DRIVER => $driver,
4872 DRIVER_FLAGS => $driver_flags,
4873 COMPILE => '$(' . $compile . ')',
4874 EXT => $test_suffix,
4875 am__EXEEXT => $am_exeext,
4876 %transform);
4877 }
4879 # is_valid_test_extension ($EXT)
4880 # ------------------------------
4881 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4882 # otherwise.
4883 sub is_valid_test_extension
4884 {
4885 my $ext = shift;
4886 return 1
4887 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4888 return 1
4889 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4890 return 0;
4891 }
4894 sub handle_tests ()
4895 {
4896 if (option 'dejagnu')
4897 {
4898 handle_tests_dejagnu;
4899 }
4900 else
4901 {
4902 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4903 {
4904 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4905 . "'AUTOMAKE_OPTIONS'");
4906 }
4907 }
4909 if (var ('TESTS'))
4910 {
4911 push (@check_tests, 'check-TESTS');
4912 my $check_deps = "@check";
4913 $output_rules .= file_contents ('check', new Automake::Location,
4914 SERIAL_TESTS => !! option 'serial-tests',
4915 CHECK_DEPS => $check_deps);
4917 # Tests that are known programs should have $(EXEEXT) appended.
4918 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4919 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4920 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4921 if (var ('XFAIL_TESTS'));
4923 if (! option 'serial-tests')
4924 {
4925 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4926 my $suff = '.test';
4927 my $at_exeext = '';
4928 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4929 if ($handle_exeext)
4930 {
4931 $at_exeext = subst ('EXEEXT');
4932 $suff = $at_exeext . ' ' . $suff;
4933 }
4934 if (! var 'TEST_EXTENSIONS')
4935 {
4936 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4937 }
4938 my $var = var 'TEST_EXTENSIONS';
4939 # Currently, we are not able to deal with conditional contents
4940 # in TEST_EXTENSIONS.
4941 if ($var->has_conditional_contents)
4942 {
4943 msg_var 'unsupported', $var,
4944 "'TEST_EXTENSIONS' cannot have conditional contents";
4945 }
4946 my @test_suffixes = $var->value_as_list_recursive;
4947 if ((my @invalid_test_suffixes =
4948 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4949 {
4950 error $var->rdef (TRUE)->location,
4951 "invalid test extensions: @invalid_test_suffixes";
4952 }
4953 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4954 if ($handle_exeext)
4955 {
4956 unshift (@test_suffixes, $at_exeext)
4957 unless $test_suffixes[0] eq $at_exeext;
4958 }
4959 unshift (@test_suffixes, '');
4961 transform_variable_recursively
4962 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4963 sub {
4964 my ($subvar, $val, $cond, $full_cond) = @_;
4965 my $obj = $val;
4966 return $obj
4967 if $val =~ /^\@.*\@$/;
4968 $obj =~ s/\$\(EXEEXT\)$//o;
4970 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4971 {
4972 msg ('error', $subvar->rdef ($cond)->location,
4973 "using '$1' in TESTS is currently broken: '$val'");
4974 }
4976 foreach my $test_suffix (@test_suffixes)
4977 {
4978 next
4979 if $test_suffix eq $at_exeext || $test_suffix eq '';
4980 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4981 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4982 }
4983 my $base = $obj;
4984 $obj .= '.log';
4985 handle_per_suffix_test ('',
4986 OBJ => $obj,
4987 BASE => $base,
4988 SOURCE => $val);
4989 return $obj;
4990 });
4992 my $nhelper=1;
4993 my $prev = 'TESTS';
4994 my $post = '';
4995 my $last_suffix = $test_suffixes[$#test_suffixes];
4996 my $cur = '';
4997 foreach my $test_suffix (@test_suffixes)
4998 {
4999 if ($test_suffix eq $last_suffix)
5000 {
5001 $cur = 'TEST_LOGS';
5002 }
5003 else
5004 {
5005 $cur = 'am__test_logs' . $nhelper;
5006 }
5007 define_variable ($cur,
5008 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5009 $post = '.log';
5010 $prev = $cur;
5011 $nhelper++;
5012 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5013 {
5014 handle_per_suffix_test ($test_suffix,
5015 OBJ => '',
5016 BASE => '$*',
5017 SOURCE => '$<');
5018 }
5019 }
5020 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5021 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
5022 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5023 }
5024 }
5025 }
5027 sub handle_emacs_lisp ()
5028 {
5029 my @elfiles = am_install_var ('-candist', 'lisp', 'LISP',
5030 'lisp', 'noinst');
5032 return if ! @elfiles;
5034 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5035 map { $_->[1] } @elfiles);
5036 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5037 '$(am__ELFILES:.el=.elc)');
5038 # This one can be overridden by users.
5039 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5041 push @all, '$(ELCFILES)';
5043 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5044 'EMACS', 'lispdir');
5045 }
5047 sub handle_python ()
5048 {
5049 my @pyfiles = am_install_var ('-defaultdist', 'python', 'PYTHON',
5050 'noinst');
5051 return if ! @pyfiles;
5053 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5054 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5055 define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5056 }
5058 sub handle_java ()
5059 {
5060 my @sourcelist = am_install_var ('-candist',
5061 'java', 'JAVA',
5062 'noinst', 'check');
5063 return if ! @sourcelist;
5065 my @prefixes = am_primary_prefixes ('JAVA', 1,
5066 'noinst', 'check');
5068 my $dir;
5069 my @java_sources = ();
5070 foreach my $prefix (@prefixes)
5071 {
5072 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5074 next
5075 if $curs eq 'EXTRA';
5077 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5079 if (defined $dir)
5080 {
5081 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5082 unless $curs eq $dir;
5083 }
5085 $dir = $curs;
5086 }
5088 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5089 "@java_sources");
5091 if ($dir eq 'check')
5092 {
5093 push (@check, "class$dir.stamp");
5094 }
5095 else
5096 {
5097 push (@all, "class$dir.stamp");
5098 }
5099 }
5102 sub handle_minor_options ()
5103 {
5104 if (option 'readme-alpha')
5105 {
5106 if ($relative_dir eq '.')
5107 {
5108 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5109 {
5110 msg ('error-gnits', $package_version_location,
5111 "version '$package_version' doesn't follow " .
5112 "Gnits standards");
5113 }
5114 if (defined $1 && -f 'README-alpha')
5115 {
5116 # This means we have an alpha release. See
5117 # GNITS_VERSION_PATTERN for details.
5118 push_dist_common ('README-alpha');
5119 }
5120 }
5121 }
5122 }
5124 ################################################################
5126 # ($OUTPUT, @INPUTS)
5127 # split_config_file_spec ($SPEC)
5128 # ------------------------------
5129 # Decode the Autoconf syntax for config files (files, headers, links
5130 # etc.).
5131 sub split_config_file_spec
5132 {
5133 my ($spec) = @_;
5134 my ($output, @inputs) = split (/:/, $spec);
5136 push @inputs, "$output.in"
5137 unless @inputs;
5139 return ($output, @inputs);
5140 }
5142 # $input
5143 # locate_am (@POSSIBLE_SOURCES)
5144 # -----------------------------
5145 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5146 # This functions returns the first *.in file for which a *.am exists.
5147 # It returns undef otherwise.
5148 sub locate_am
5149 {
5150 my (@rest) = @_;
5151 my $input;
5152 foreach my $file (@rest)
5153 {
5154 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5155 {
5156 $input = $file;
5157 last;
5158 }
5159 }
5160 return $input;
5161 }
5163 my %make_list;
5165 # scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5166 # --------------------------------------------------
5167 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5168 # (or AC_OUTPUT).
5169 sub scan_autoconf_config_files
5170 {
5171 my ($where, $config_files) = @_;
5173 # Look at potential Makefile.am's.
5174 foreach (split ' ', $config_files)
5175 {
5176 # Must skip empty string for Perl 4.
5177 next if $_ eq "\\" || $_ eq '';
5179 # Handle $local:$input syntax.
5180 my ($local, @rest) = split (/:/);
5181 @rest = ("$local.in",) unless @rest;
5182 # Keep in sync with test 'conffile-leading-dot.sh'.
5183 msg ('unsupported', $where,
5184 "omit leading './' from config file names such as '$local';"
5185 . "\nremake rules might be subtly broken otherwise")
5186 if ($local =~ /^\.\//);
5187 my $input = locate_am @rest;
5188 if ($input)
5189 {
5190 # We have a file that automake should generate.
5191 $make_list{$input} = join (':', ($local, @rest));
5192 }
5193 else
5194 {
5195 # We have a file that automake should cause to be
5196 # rebuilt, but shouldn't generate itself.
5197 push (@other_input_files, $_);
5198 }
5199 $ac_config_files_location{$local} = $where;
5200 $ac_config_files_condition{$local} =
5201 new Automake::Condition (@cond_stack)
5202 if (@cond_stack);
5203 }
5204 }
5207 sub scan_autoconf_traces
5208 {
5209 my ($filename) = @_;
5211 # Macros to trace, with their minimal number of arguments.
5212 #
5213 # IMPORTANT: If you add a macro here, you should also add this macro
5214 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5215 my %traced = (
5216 AC_CANONICAL_BUILD => 0,
5217 AC_CANONICAL_HOST => 0,
5218 AC_CANONICAL_TARGET => 0,
5219 AC_CONFIG_AUX_DIR => 1,
5220 AC_CONFIG_FILES => 1,
5221 AC_CONFIG_HEADERS => 1,
5222 AC_CONFIG_LIBOBJ_DIR => 1,
5223 AC_CONFIG_LINKS => 1,
5224 AC_FC_SRCEXT => 1,
5225 AC_INIT => 0,
5226 AC_LIBSOURCE => 1,
5227 AC_REQUIRE_AUX_FILE => 1,
5228 AC_SUBST_TRACE => 1,
5229 AM_AUTOMAKE_VERSION => 1,
5230 AM_PROG_MKDIR_P => 0,
5231 AM_CONDITIONAL => 2,
5232 AM_EXTRA_RECURSIVE_TARGETS => 1,
5233 AM_GNU_GETTEXT => 0,
5234 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5235 AM_INIT_AUTOMAKE => 0,
5236 AM_MAINTAINER_MODE => 0,
5237 AM_PROG_AR => 0,
5238 _AM_SUBST_NOTMAKE => 1,
5239 _AM_COND_IF => 1,
5240 _AM_COND_ELSE => 1,
5241 _AM_COND_ENDIF => 1,
5242 LT_SUPPORTED_TAG => 1,
5243 _LT_AC_TAGCONFIG => 0,
5244 m4_include => 1,
5245 m4_sinclude => 1,
5246 sinclude => 1,
5247 );
5249 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5251 # Use a separator unlikely to be used, not ':', the default, which
5252 # has a precise meaning for AC_CONFIG_FILES and so on.
5253 $traces .= join (' ',
5254 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5255 (keys %traced));
5257 my $tracefh = new Automake::XFile ("$traces $filename |");
5258 verb "reading $traces";
5260 @cond_stack = ();
5261 my $where;
5263 while ($_ = $tracefh->getline)
5264 {
5265 chomp;
5266 my ($here, $depth, @args) = split (/::/);
5267 $where = new Automake::Location $here;
5268 my $macro = $args[0];
5270 prog_error ("unrequested trace '$macro'")
5271 unless exists $traced{$macro};
5273 # Skip and diagnose malformed calls.
5274 if ($#args < $traced{$macro})
5275 {
5276 msg ('syntax', $where, "not enough arguments for $macro");
5277 next;
5278 }
5280 # Alphabetical ordering please.
5281 if ($macro eq 'AC_CANONICAL_BUILD')
5282 {
5283 if ($seen_canonical <= AC_CANONICAL_BUILD)
5284 {
5285 $seen_canonical = AC_CANONICAL_BUILD;
5286 }
5287 }
5288 elsif ($macro eq 'AC_CANONICAL_HOST')
5289 {
5290 if ($seen_canonical <= AC_CANONICAL_HOST)
5291 {
5292 $seen_canonical = AC_CANONICAL_HOST;
5293 }
5294 }
5295 elsif ($macro eq 'AC_CANONICAL_TARGET')
5296 {
5297 $seen_canonical = AC_CANONICAL_TARGET;
5298 }
5299 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5300 {
5301 if ($seen_init_automake)
5302 {
5303 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5304 . "AM_INIT_AUTOMAKE ...", partial => 1);
5305 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5306 }
5307 $config_aux_dir = $args[1];
5308 $config_aux_dir_set_in_configure_ac = 1;
5309 check_directory ($config_aux_dir, $where);
5310 }
5311 elsif ($macro eq 'AC_CONFIG_FILES')
5312 {
5313 # Look at potential Makefile.am's.
5314 scan_autoconf_config_files ($where, $args[1]);
5315 }
5316 elsif ($macro eq 'AC_CONFIG_HEADERS')
5317 {
5318 foreach my $spec (split (' ', $args[1]))
5319 {
5320 my ($dest, @src) = split (':', $spec);
5321 $ac_config_files_location{$dest} = $where;
5322 push @config_headers, $spec;
5323 }
5324 }
5325 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5326 {
5327 $config_libobj_dir = $args[1];
5328 check_directory ($config_libobj_dir, $where);
5329 }
5330 elsif ($macro eq 'AC_CONFIG_LINKS')
5331 {
5332 foreach my $spec (split (' ', $args[1]))
5333 {
5334 my ($dest, $src) = split (':', $spec);
5335 $ac_config_files_location{$dest} = $where;
5336 push @config_links, $spec;
5337 }
5338 }
5339 elsif ($macro eq 'AC_FC_SRCEXT')
5340 {
5341 my $suffix = $args[1];
5342 # These flags are used as %SOURCEFLAG% in depend2.am,
5343 # where the trailing space is important.
5344 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5345 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5346 }
5347 elsif ($macro eq 'AC_INIT')
5348 {
5349 if (defined $args[2])
5350 {
5351 $package_version = $args[2];
5352 $package_version_location = $where;
5353 }
5354 }
5355 elsif ($macro eq 'AC_LIBSOURCE')
5356 {
5357 $libsources{$args[1]} = $here;
5358 }
5359 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5360 {
5361 # Only remember the first time a file is required.
5362 $required_aux_file{$args[1]} = $where
5363 unless exists $required_aux_file{$args[1]};
5364 }
5365 elsif ($macro eq 'AC_SUBST_TRACE')
5366 {
5367 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5368 # AC_SUBST(5), then too bad.
5369 $configure_vars{$args[1]} = $where
5370 if $args[1] =~ /^\w+$/;
5371 }
5372 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5373 {
5374 error ($where,
5375 "version mismatch. This is Automake $VERSION,\n" .
5376 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5377 "comes from Automake $args[1]. You should recreate\n" .
5378 "aclocal.m4 with aclocal and run automake again.\n",
5379 # $? = 63 is used to indicate version mismatch to missing.
5380 exit_code => 63)
5381 if $VERSION ne $args[1];
5383 $seen_automake_version = 1;
5384 }
5385 elsif ($macro eq 'AM_PROG_MKDIR_P')
5386 {
5387 msg 'obsolete', $where, <<'EOF';
5388 The 'AM_PROG_MKDIR_P' macro is deprecated, and its use is discouraged.
5389 You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
5390 and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
5391 EOF
5392 }
5393 elsif ($macro eq 'AM_CONDITIONAL')
5394 {
5395 $configure_cond{$args[1]} = $where;
5396 }
5397 elsif ($macro eq 'AM_EXTRA_RECURSIVE_TARGETS')
5398 {
5399 # Empty leading/trailing fields might be produced by split,
5400 # hence the grep is really needed.
5401 push @extra_recursive_targets,
5402 grep (/./, (split /\s+/, $args[1]));
5403 }
5404 elsif ($macro eq 'AM_GNU_GETTEXT')
5405 {
5406 $seen_gettext = $where;
5407 $ac_gettext_location = $where;
5408 $seen_gettext_external = grep ($_ eq 'external', @args);
5409 }
5410 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5411 {
5412 $seen_gettext_intl = $where;
5413 }
5414 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5415 {
5416 $seen_init_automake = $where;
5417 if (defined $args[2])
5418 {
5419 msg 'obsolete', $where, <<'EOF';
5420 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5421 https://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
5422 EOF
5423 $package_version = $args[2];
5424 $package_version_location = $where;
5425 }
5426 elsif (defined $args[1])
5427 {
5428 my @opts = split (' ', $args[1]);
5429 @opts = map { { option => $_, where => $where } } @opts;
5430 exit $exit_code unless process_global_option_list (@opts);
5431 }
5432 }
5433 elsif ($macro eq 'AM_MAINTAINER_MODE')
5434 {
5435 $seen_maint_mode = $where;
5436 }
5437 elsif ($macro eq 'AM_PROG_AR')
5438 {
5439 $seen_ar = $where;
5440 }
5441 elsif ($macro eq '_AM_COND_IF')
5442 {
5443 cond_stack_if ('', $args[1], $where);
5444 error ($where, "missing m4 quoting, macro depth $depth")
5445 if ($depth != 1);
5446 }
5447 elsif ($macro eq '_AM_COND_ELSE')
5448 {
5449 cond_stack_else ('!', $args[1], $where);
5450 error ($where, "missing m4 quoting, macro depth $depth")
5451 if ($depth != 1);
5452 }
5453 elsif ($macro eq '_AM_COND_ENDIF')
5454 {
5455 cond_stack_endif (undef, undef, $where);
5456 error ($where, "missing m4 quoting, macro depth $depth")
5457 if ($depth != 1);
5458 }
5459 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5460 {
5461 $ignored_configure_vars{$args[1]} = $where;
5462 }
5463 elsif ($macro eq 'm4_include'
5464 || $macro eq 'm4_sinclude'
5465 || $macro eq 'sinclude')
5466 {
5467 # Skip missing 'sinclude'd files.
5468 next if $macro ne 'm4_include' && ! -f $args[1];
5470 # Some modified versions of Autoconf don't use
5471 # frozen files. Consequently it's possible that we see all
5472 # m4_include's performed during Autoconf's startup.
5473 # Obviously we don't want to distribute Autoconf's files
5474 # so we skip absolute filenames here.
5475 push @configure_deps, '$(top_srcdir)/' . $args[1]
5476 unless $here =~ m,^(?:\w:)?[\\/],;
5477 # Keep track of the greatest timestamp.
5478 if (-e $args[1])
5479 {
5480 my $mtime = mtime $args[1];
5481 $configure_deps_greatest_timestamp = $mtime
5482 if $mtime > $configure_deps_greatest_timestamp;
5483 }
5484 }
5485 elsif ($macro eq 'LT_SUPPORTED_TAG')
5486 {
5487 $libtool_tags{$args[1]} = 1;
5488 $libtool_new_api = 1;
5489 }
5490 elsif ($macro eq '_LT_AC_TAGCONFIG')
5491 {
5492 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5493 # We use it to detect whether tags are supported. Our
5494 # preferred interface is LT_SUPPORTED_TAG, but it was
5495 # introduced in Libtool 1.6.
5496 if (0 == keys %libtool_tags)
5497 {
5498 # Hardcode the tags supported by Libtool 1.5.
5499 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5500 }
5501 }
5502 }
5504 error ($where, "condition stack not properly closed")
5505 if (@cond_stack);
5507 $tracefh->close;
5508 }
5511 # Check whether we use 'configure.ac' or 'configure.in'.
5512 # Scan it (and possibly 'aclocal.m4') for interesting things.
5513 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5514 sub scan_autoconf_files ()
5515 {
5516 # Reinitialize libsources here. This isn't really necessary,
5517 # since we currently assume there is only one configure.ac. But
5518 # that won't always be the case.
5519 %libsources = ();
5521 # Keep track of the youngest configure dependency.
5522 $configure_deps_greatest_timestamp = mtime $configure_ac;
5523 if (-e 'aclocal.m4')
5524 {
5525 my $mtime = mtime 'aclocal.m4';
5526 $configure_deps_greatest_timestamp = $mtime
5527 if $mtime > $configure_deps_greatest_timestamp;
5528 }
5530 scan_autoconf_traces ($configure_ac);
5532 @configure_input_files = sort keys %make_list;
5533 # Set input and output files if not specified by user.
5534 if (! @input_files)
5535 {
5536 @input_files = @configure_input_files;
5537 %output_files = %make_list;
5538 }
5541 if (! $seen_init_automake)
5542 {
5543 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5544 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5545 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5546 . "and that aclocal.m4 was recently regenerated "
5547 . "(using aclocal)");
5548 }
5549 else
5550 {
5551 if (! $seen_automake_version)
5552 {
5553 if (-f 'aclocal.m4')
5554 {
5555 error ($seen_init_automake,
5556 "your implementation of AM_INIT_AUTOMAKE comes from " .
5557 "an\nold Automake version. You should recreate " .
5558 "aclocal.m4\nwith aclocal and run automake again",
5559 # $? = 63 is used to indicate version mismatch to missing.
5560 exit_code => 63);
5561 }
5562 else
5563 {
5564 error ($seen_init_automake,
5565 "no proper implementation of AM_INIT_AUTOMAKE was " .
5566 "found,\nprobably because aclocal.m4 is missing.\n" .
5567 "You should run aclocal to create this file, then\n" .
5568 "run automake again");
5569 }
5570 }
5571 }
5573 locate_aux_dir ();
5575 # Look for some files we need. Always check for these. This
5576 # check must be done for every run, even those where we are only
5577 # looking at a subdir Makefile. We must set relative_dir for
5578 # push_required_file to work.
5579 # Sort the files for stable verbose output.
5580 $relative_dir = '.';
5581 foreach my $file (sort keys %required_aux_file)
5582 {
5583 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5584 }
5585 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5586 if -f $config_aux_dir . '/install.sh';
5588 # Preserve dist_common for later.
5589 @configure_dist_common = @dist_common;
5590 }
5592 ################################################################
5594 # Do any extra checking for GNU standards.
5595 sub check_gnu_standards ()
5596 {
5597 if ($relative_dir eq '.')
5598 {
5599 # In top level (or only) directory.
5600 require_file ("$am_file.am", GNU,
5601 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5603 # Accept one of these three licenses; default to COPYING.
5604 # Make sure we do not overwrite an existing license.
5605 my $license;
5606 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5607 {
5608 if (-f $_)
5609 {
5610 $license = $_;
5611 last;
5612 }
5613 }
5614 require_file ("$am_file.am", GNU, 'COPYING')
5615 unless $license;
5616 }
5618 for my $opt ('no-installman', 'no-installinfo')
5619 {
5620 msg ('error-gnu', option $opt,
5621 "option '$opt' disallowed by GNU standards")
5622 if option $opt;
5623 }
5624 }
5626 # Do any extra checking for GNITS standards.
5627 sub check_gnits_standards ()
5628 {
5629 if ($relative_dir eq '.')
5630 {
5631 # In top level (or only) directory.
5632 require_file ("$am_file.am", GNITS, 'THANKS');
5633 }
5634 }
5636 ################################################################
5637 #
5638 # Functions to handle files of each language.
5640 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5641 # simple formula: Return value is LANG_SUBDIR if the resulting object
5642 # file should be in a subdir if the source file is, LANG_PROCESS if
5643 # file is to be dealt with, LANG_IGNORE otherwise.
5645 # Much of the actual processing is handled in
5646 # handle_single_transform. These functions exist so that
5647 # auxiliary information can be recorded for a later cleanup pass.
5648 # Note that the calls to these functions are computed, so don't bother
5649 # searching for their precise names in the source.
5651 # This is just a convenience function that can be used to determine
5652 # when a subdir object should be used.
5653 sub lang_sub_obj ()
5654 {
5655 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5656 }
5658 # Rewrite a single header file.
5659 sub lang_header_rewrite
5660 {
5661 # Header files are simply ignored.
5662 return LANG_IGNORE;
5663 }
5665 # Rewrite a single Vala source file.
5666 sub lang_vala_rewrite
5667 {
5668 my ($directory, $base, $ext) = @_;
5670 (my $newext = $ext) =~ s/vala$/c/;
5671 return (LANG_SUBDIR, $newext);
5672 }
5674 # Rewrite a single yacc/yacc++ file.
5675 sub lang_yacc_rewrite
5676 {
5677 my ($directory, $base, $ext) = @_;
5679 my $r = lang_sub_obj;
5680 (my $newext = $ext) =~ tr/y/c/;
5681 return ($r, $newext);
5682 }
5683 sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
5685 # Rewrite a single lex/lex++ file.
5686 sub lang_lex_rewrite
5687 {
5688 my ($directory, $base, $ext) = @_;
5690 my $r = lang_sub_obj;
5691 (my $newext = $ext) =~ tr/l/c/;
5692 return ($r, $newext);
5693 }
5694 sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
5696 # Rewrite a single Java file.
5697 sub lang_java_rewrite
5698 {
5699 return LANG_SUBDIR;
5700 }
5702 # The lang_X_finish functions are called after all source file
5703 # processing is done. Each should handle defining rules for the
5704 # language, etc. A finish function is only called if a source file of
5705 # the appropriate type has been seen.
5707 sub lang_vala_finish_target
5708 {
5709 my ($self, $name) = @_;
5711 my $derived = canonicalize ($name);
5712 my $var = var "${derived}_SOURCES";
5713 return unless $var;
5715 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5717 # For automake bug#11229.
5718 return unless @vala_sources;
5720 foreach my $vala_file (@vala_sources)
5721 {
5722 my $c_file = $vala_file;
5723 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5724 {
5725 $c_file = "\$(srcdir)/$c_file";
5726 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5727 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5728 . "\t\@if test -f \$@; then :; else \\\n"
5729 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5730 . "\tfi\n";
5731 $clean_files{$c_file} = MAINTAINER_CLEAN;
5732 }
5733 }
5735 # Add rebuild rules for generated header and vapi files
5736 my $flags = var ($derived . '_VALAFLAGS');
5737 if ($flags)
5738 {
5739 my $lastflag = '';
5740 foreach my $flag ($flags->value_as_list_recursive)
5741 {
5742 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5743 '--vapi', '--internal-vapi', '--gir')))
5744 {
5745 my $headerfile = "\$(srcdir)/$flag";
5746 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5747 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5748 . "\t\@if test -f \$@; then :; else \\\n"
5749 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5750 . "\tfi\n";
5752 # valac is not used when building from dist tarballs
5753 # distribute the generated files
5754 push_dist_common ($headerfile);
5755 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5756 }
5757 $lastflag = $flag;
5758 }
5759 }
5761 my $compile = $self->compile;
5763 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5764 # rule into '${derived}_VALAFLAGS' if it exists.
5765 my $val = "${derived}_VALAFLAGS";
5766 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5767 if set_seen ($val);
5769 # VALAFLAGS is a user variable (per GNU Standards),
5770 # it should not be overridden in the Makefile...
5771 check_user_variables 'VALAFLAGS';
5773 my $dirname = dirname ($name);
5775 # Only generate C code, do not run C compiler
5776 $compile .= " -C";
5778 my $verbose = verbose_flag ('VALAC');
5779 my $silent = silent_flag ();
5780 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5782 $output_rules .=
5783 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5784 # Since the C files generated from the vala sources depend on the
5785 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5786 # those of the C files generated by the valac invocation below (this is
5787 # especially important on systems with sub-second timestamp resolution).
5788 # Thus we need to create the stamp file *before* invoking valac, and to
5789 # move it to its final location only after valac has been invoked.
5790 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5791 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5792 "\t${silent}mv -f \$\@-t \$\@\n";
5794 push_dist_common ($stampfile);
5796 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5797 }
5799 # Add output rules to invoke valac and create stamp file as a witness
5800 # to handle multiple outputs. This function is called after all source
5801 # file processing is done.
5802 sub lang_vala_finish ()
5803 {
5804 my ($self) = @_;
5806 foreach my $prog (keys %known_programs)
5807 {
5808 lang_vala_finish_target ($self, $prog);
5809 }
5811 while (my ($name) = each %known_libraries)
5812 {
5813 lang_vala_finish_target ($self, $name);
5814 }
5815 }
5817 # The built .c files should be cleaned only on maintainer-clean
5818 # as the .c files are distributed. This function is called for each
5819 # .vala source file.
5820 sub lang_vala_target_hook
5821 {
5822 my ($self, $aggregate, $output, $input, %transform) = @_;
5824 $clean_files{$output} = MAINTAINER_CLEAN;
5825 }
5827 # This is a yacc helper which is called whenever we have decided to
5828 # compile a yacc file.
5829 sub lang_yacc_target_hook
5830 {
5831 my ($self, $aggregate, $output, $input, %transform) = @_;
5833 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5834 # have to to generate special code.
5835 my $yflags_contains_minus_d = 0;
5837 foreach my $pfx ("", "${aggregate}_")
5838 {
5839 my $yflagsvar = var ("${pfx}YFLAGS");
5840 next unless $yflagsvar;
5841 # We cannot work reliably with conditionally-defined YFLAGS.
5842 if ($yflagsvar->has_conditional_contents)
5843 {
5844 msg_var ('unsupported', $yflagsvar,
5845 "'${pfx}YFLAGS' cannot have conditional contents");
5846 }
5847 else
5848 {
5849 $yflags_contains_minus_d = 1
5850 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5851 }
5852 }
5854 if ($yflags_contains_minus_d)
5855 {
5856 # Found a '-d' that applies to the compilation of this file.
5857 # Add a dependency for the generated header file, and arrange
5858 # for that file to be included in the distribution.
5860 # The extension of the output file (e.g., '.c' or '.cxx').
5861 # We'll need it to compute the name of the generated header file.
5862 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5864 # We know that a yacc input should be turned into either a C or
5865 # C++ output file. We depend on this fact (here and in yacc.am),
5866 # so check that it really holds.
5867 my $lang = $languages{$extension_map{$output_ext}};
5868 prog_error "invalid output name '$output' for yacc file '$input'"
5869 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5871 (my $header_ext = $output_ext) =~ s/c/h/g;
5872 # Quote $output_ext in the regexp, so that dots in it are taken
5873 # as literal dots, not as metacharacters.
5874 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5876 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5877 RULE_AUTOMAKE, TRUE,
5878 INTERNAL))
5879 {
5880 my $condstr = $cond->subst_string;
5881 $output_rules .=
5882 "$condstr${header}: $output\n"
5883 # Recover from removal of $header
5884 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5885 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5886 }
5887 # Distribute the generated file, unless its .y source was
5888 # listed in a nodist_ variable. (handle_source_transform()
5889 # will set DIST_SOURCE.)
5890 push_dist_common ($header)
5891 if $transform{'DIST_SOURCE'};
5893 # The GNU rules say that yacc/lex output files should be removed
5894 # by maintainer-clean. However, if the files are not distributed,
5895 # then we want to remove them with "make clean"; otherwise,
5896 # "make distcheck" will fail.
5897 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5898 }
5899 # See the comment above for $HEADER.
5900 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5901 }
5903 # This is a lex helper which is called whenever we have decided to
5904 # compile a lex file.
5905 sub lang_lex_target_hook
5906 {
5907 my ($self, $aggregate, $output, $input, %transform) = @_;
5908 # The GNU rules say that yacc/lex output files should be removed
5909 # by maintainer-clean. However, if the files are not distributed,
5910 # then we want to remove them with "make clean"; otherwise,
5911 # "make distcheck" will fail.
5912 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5913 }
5915 # This is a helper for both lex and yacc.
5916 sub yacc_lex_finish_helper ()
5917 {
5918 return if defined $language_scratch{'lex-yacc-done'};
5919 $language_scratch{'lex-yacc-done'} = 1;
5921 # FIXME: for now, no line number.
5922 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5923 define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5924 }
5926 sub lang_yacc_finish ()
5927 {
5928 return if defined $language_scratch{'yacc-done'};
5929 $language_scratch{'yacc-done'} = 1;
5931 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5933 yacc_lex_finish_helper;
5934 }
5937 sub lang_lex_finish ()
5938 {
5939 return if defined $language_scratch{'lex-done'};
5940 $language_scratch{'lex-done'} = 1;
5942 yacc_lex_finish_helper;
5943 }
5946 # Given a hash table of linker names, pick the name that has the most
5947 # precedence. This is lame, but something has to have global
5948 # knowledge in order to eliminate the conflict. Add more linkers as
5949 # required.
5950 sub resolve_linker
5951 {
5952 my (%linkers) = @_;
5954 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5955 {
5956 return $l if defined $linkers{$l};
5957 }
5958 return 'LINK';
5959 }
5961 # Called to indicate that an extension was used.
5962 sub saw_extension
5963 {
5964 my ($ext) = @_;
5965 $extension_seen{$ext} = 1;
5966 }
5968 # register_language (%ATTRIBUTE)
5969 # ------------------------------
5970 # Register a single language.
5971 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5972 sub register_language
5973 {
5974 my (%option) = @_;
5976 # Set the defaults.
5977 $option{'autodep'} = 'no'
5978 unless defined $option{'autodep'};
5979 $option{'linker'} = ''
5980 unless defined $option{'linker'};
5981 $option{'flags'} = []
5982 unless defined $option{'flags'};
5983 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5984 unless defined $option{'output_extensions'};
5985 $option{'nodist_specific'} = 0
5986 unless defined $option{'nodist_specific'};
5988 my $lang = new Automake::Language (%option);
5990 # Fill indexes.
5991 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5992 $languages{$lang->name} = $lang;
5993 my $link = $lang->linker;
5994 if ($link)
5995 {
5996 if (exists $link_languages{$link})
5997 {
5998 prog_error ("'$link' has different definitions in "
5999 . $lang->name . " and " . $link_languages{$link}->name)
6000 if $lang->link ne $link_languages{$link}->link;
6001 }
6002 else
6003 {
6004 $link_languages{$link} = $lang;
6005 }
6006 }
6008 # Update the pattern of known extensions.
6009 accept_extensions (@{$lang->extensions});
6011 # Update the suffix rules map.
6012 foreach my $suffix (@{$lang->extensions})
6013 {
6014 foreach my $dest ($lang->output_extensions->($suffix))
6015 {
6016 register_suffix_rule (INTERNAL, $suffix, $dest);
6017 }
6018 }
6019 }
6021 # derive_suffix ($EXT, $OBJ)
6022 # --------------------------
6023 # This function is used to find a path from a user-specified suffix $EXT
6024 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6025 sub derive_suffix
6026 {
6027 my ($source_ext, $obj) = @_;
6029 while (!$extension_map{$source_ext} && $source_ext ne $obj)
6030 {
6031 my $new_source_ext = next_in_suffix_chain ($source_ext, $obj);
6032 last if not defined $new_source_ext;
6033 $source_ext = $new_source_ext;
6034 }
6036 return $source_ext;
6037 }
6040 # Pretty-print something and append to '$output_rules'.
6041 sub pretty_print_rule
6042 {
6043 $output_rules .= makefile_wrap (shift, shift, @_);
6044 }
6047 ################################################################
6050 ## -------------------------------- ##
6051 ## Handling the conditional stack. ##
6052 ## -------------------------------- ##
6055 # $STRING
6056 # make_conditional_string ($NEGATE, $COND)
6057 # ----------------------------------------
6058 sub make_conditional_string
6059 {
6060 my ($negate, $cond) = @_;
6061 $cond = "${cond}_TRUE"
6062 unless $cond =~ /^TRUE|FALSE$/;
6063 $cond = Automake::Condition::conditional_negate ($cond)
6064 if $negate;
6065 return $cond;
6066 }
6069 my %_am_macro_for_cond =
6070 (
6071 AMDEP => "one of the compiler tests\n"
6072 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6073 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6074 am__fastdepCC => 'AC_PROG_CC',
6075 am__fastdepCCAS => 'AM_PROG_AS',
6076 am__fastdepCXX => 'AC_PROG_CXX',
6077 am__fastdepGCJ => 'AM_PROG_GCJ',
6078 am__fastdepOBJC => 'AC_PROG_OBJC',
6079 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6080 am__fastdepUPC => 'AM_PROG_UPC'
6081 );
6083 # $COND
6084 # cond_stack_if ($NEGATE, $COND, $WHERE)
6085 # --------------------------------------
6086 sub cond_stack_if
6087 {
6088 my ($negate, $cond, $where) = @_;
6090 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6091 {
6092 my $text = "$cond does not appear in AM_CONDITIONAL";
6093 my $scope = US_LOCAL;
6094 if (exists $_am_macro_for_cond{$cond})
6095 {
6096 my $mac = $_am_macro_for_cond{$cond};
6097 $text .= "\n The usual way to define '$cond' is to add ";
6098 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6099 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6100 # These warnings appear in Automake files (depend2.am),
6101 # so there is no need to display them more than once:
6102 $scope = US_GLOBAL;
6103 }
6104 error $where, $text, uniq_scope => $scope;
6105 }
6107 push (@cond_stack, make_conditional_string ($negate, $cond));
6109 return new Automake::Condition (@cond_stack);
6110 }
6113 # $COND
6114 # cond_stack_else ($NEGATE, $COND, $WHERE)
6115 # ----------------------------------------
6116 sub cond_stack_else
6117 {
6118 my ($negate, $cond, $where) = @_;
6120 if (! @cond_stack)
6121 {
6122 error $where, "else without if";
6123 return FALSE;
6124 }
6126 $cond_stack[$#cond_stack] =
6127 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6129 # If $COND is given, check against it.
6130 if (defined $cond)
6131 {
6132 $cond = make_conditional_string ($negate, $cond);
6134 error ($where, "else reminder ($negate$cond) incompatible with "
6135 . "current conditional: $cond_stack[$#cond_stack]")
6136 if $cond_stack[$#cond_stack] ne $cond;
6137 }
6139 return new Automake::Condition (@cond_stack);
6140 }
6143 # $COND
6144 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6145 # -----------------------------------------
6146 sub cond_stack_endif
6147 {
6148 my ($negate, $cond, $where) = @_;
6149 my $old_cond;
6151 if (! @cond_stack)
6152 {
6153 error $where, "endif without if";
6154 return TRUE;
6155 }
6157 # If $COND is given, check against it.
6158 if (defined $cond)
6159 {
6160 $cond = make_conditional_string ($negate, $cond);
6162 error ($where, "endif reminder ($negate$cond) incompatible with "
6163 . "current conditional: $cond_stack[$#cond_stack]")
6164 if $cond_stack[$#cond_stack] ne $cond;
6165 }
6167 pop @cond_stack;
6169 return new Automake::Condition (@cond_stack);
6170 }
6176 ## ------------------------ ##
6177 ## Handling the variables. ##
6178 ## ------------------------ ##
6181 # define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6182 # ----------------------------------------------------
6183 # Like define_variable, but the value is a list, and the variable may
6184 # be defined conditionally. The second argument is the condition
6185 # under which the value should be defined; this should be the empty
6186 # string to define the variable unconditionally. The third argument
6187 # is a list holding the values to use for the variable. The value is
6188 # pretty printed in the output file.
6189 sub define_pretty_variable
6190 {
6191 my ($var, $cond, $where, @value) = @_;
6193 if (! vardef ($var, $cond))
6194 {
6195 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6196 '', $where, VAR_PRETTY);
6197 rvar ($var)->rdef ($cond)->set_seen;
6198 }
6199 }
6202 # define_variable ($VAR, $VALUE, $WHERE)
6203 # --------------------------------------
6204 # Define a new Automake Makefile variable VAR to VALUE, but only if
6205 # not already defined.
6206 sub define_variable
6207 {
6208 my ($var, $value, $where) = @_;
6209 define_pretty_variable ($var, TRUE, $where, $value);
6210 }
6213 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6214 # ------------------------------------------------------------
6215 # Define the $VAR which content is the list of file names composed of
6216 # a @BASENAME and the $EXTENSION.
6217 sub define_files_variable ($\@$$)
6218 {
6219 my ($var, $basename, $extension, $where) = @_;
6220 define_variable ($var,
6221 join (' ', map { "$_.$extension" } @$basename),
6222 $where);
6223 }
6226 # Like define_variable, but define a variable to be the configure
6227 # substitution by the same name.
6228 sub define_configure_variable
6229 {
6230 my ($var) = @_;
6231 # Some variables we do not want to output. For instance it
6232 # would be a bad idea to output `U = @U@` when `@U@` can be
6233 # substituted as `\`.
6234 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6235 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst ($var),
6236 '', $configure_vars{$var}, $pretty);
6237 }
6240 # define_compiler_variable ($LANG)
6241 # --------------------------------
6242 # Define a compiler variable. We also handle defining the 'LT'
6243 # version of the command when using libtool.
6244 sub define_compiler_variable
6245 {
6246 my ($lang) = @_;
6248 my ($var, $value) = ($lang->compiler, $lang->compile);
6249 my $libtool_tag = '';
6250 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6251 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6252 define_variable ($var, $value, INTERNAL);
6253 if (var ('LIBTOOL'))
6254 {
6255 my $verbose = define_verbose_libtool ();
6256 define_variable ("LT$var",
6257 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS)"
6258 . " \$(LIBTOOLFLAGS) --mode=compile $value",
6259 INTERNAL);
6260 }
6261 define_verbose_tagvar ($lang->ccer || 'GEN');
6262 }
6265 sub define_linker_variable
6266 {
6267 my ($lang) = @_;
6269 my $libtool_tag = '';
6270 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6271 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6272 # CCLD = $(CC).
6273 define_variable ($lang->lder, $lang->ld, INTERNAL);
6274 # CCLINK = $(CCLD) blah blah...
6275 my $link = '';
6276 if (var ('LIBTOOL'))
6277 {
6278 my $verbose = define_verbose_libtool ();
6279 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6280 . "\$(LIBTOOLFLAGS) --mode=link ";
6281 }
6282 define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6283 define_variable ($lang->compiler, $lang, INTERNAL);
6284 define_verbose_tagvar ($lang->lder || 'GEN');
6285 }
6287 sub define_per_target_linker_variable
6288 {
6289 my ($linker, $target) = @_;
6291 # If the user wrote a custom link command, we don't define ours.
6292 return "${target}_LINK"
6293 if set_seen "${target}_LINK";
6295 my $xlink = $linker ? $linker : 'LINK';
6297 my $lang = $link_languages{$xlink};
6298 prog_error "Unknown language for linker variable '$xlink'"
6299 unless $lang;
6301 my $link_command = $lang->link;
6302 if (var 'LIBTOOL')
6303 {
6304 my $libtool_tag = '';
6305 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6306 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6308 my $verbose = define_verbose_libtool ();
6309 $link_command =
6310 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6311 . "--mode=link " . $link_command;
6312 }
6314 # Rewrite each occurrence of 'AM_$flag' in the link
6315 # command into '${derived}_$flag' if it exists.
6316 my $orig_command = $link_command;
6317 my @flags = (@{$lang->flags}, 'LDFLAGS');
6318 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6319 for my $flag (@flags)
6320 {
6321 my $val = "${target}_$flag";
6322 $link_command =~ s/\(AM_$flag\)/\($val\)/
6323 if set_seen ($val);
6324 }
6326 # If the computed command is the same as the generic command, use
6327 # the command linker variable.
6328 return ($lang->linker, $lang->lder)
6329 if $link_command eq $orig_command;
6331 define_variable ("${target}_LINK", $link_command, INTERNAL);
6332 return ("${target}_LINK", $lang->lder);
6333 }
6335 ################################################################
6337 # check_trailing_slash ($WHERE, $LINE)
6338 # ------------------------------------
6339 # Return 1 iff $LINE ends with a slash.
6340 # Might modify $LINE.
6341 sub check_trailing_slash ($\$)
6342 {
6343 my ($where, $line) = @_;
6345 # Ignore '##' lines.
6346 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6348 # Catch and fix a common error.
6349 msg "syntax", $where, "whitespace following trailing backslash"
6350 if $$line =~ s/\\\s+\n$/\\\n/;
6352 return $$line =~ /\\$/;
6353 }
6356 # read_am_file ($AMFILE, $WHERE, $RELDIR)
6357 # ---------------------------------------
6358 # Read $AMFILE file name which is located in $RELDIR, and set up
6359 # global variables resetted by '&generate_makefile'. Simultaneously
6360 # copy lines from $AMFILE into '$output_trailer', or define variables
6361 # as appropriate.
6362 #
6363 # NOTE: We put rules in the trailer section. We want user rules to
6364 # come after our generated stuff.
6365 sub read_am_file
6366 {
6367 my ($amfile, $where, $reldir) = @_;
6368 my $canon_reldir = &canonicalize ($reldir);
6370 my $am_file = new Automake::XFile ("< $amfile");
6371 verb "reading $amfile";
6373 # Keep track of the youngest output dependency.
6374 my $mtime = mtime $amfile;
6375 $output_deps_greatest_timestamp = $mtime
6376 if $mtime > $output_deps_greatest_timestamp;
6378 my $spacing = '';
6379 my $comment = '';
6380 my $blank = 0;
6381 my $saw_bk = 0;
6382 my $var_look = VAR_ASIS;
6384 use constant IN_VAR_DEF => 0;
6385 use constant IN_RULE_DEF => 1;
6386 use constant IN_COMMENT => 2;
6387 my $prev_state = IN_RULE_DEF;
6389 while ($_ = $am_file->getline)
6390 {
6391 $where->set ("$amfile:$.");
6392 if (/$IGNORE_PATTERN/o)
6393 {
6394 # Merely delete comments beginning with two hashes.
6395 }
6396 elsif (/$WHITE_PATTERN/o)
6397 {
6398 error $where, "blank line following trailing backslash"
6399 if $saw_bk;
6400 # Stick a single white line before the incoming macro or rule.
6401 $spacing = "\n";
6402 $blank = 1;
6403 # Flush all comments seen so far.
6404 if ($comment ne '')
6405 {
6406 $output_vars .= $comment;
6407 $comment = '';
6408 }
6409 }
6410 elsif (/$COMMENT_PATTERN/o)
6411 {
6412 # Stick comments before the incoming macro or rule. Make
6413 # sure a blank line precedes the first block of comments.
6414 $spacing = "\n" unless $blank;
6415 $blank = 1;
6416 $comment .= $spacing . $_;
6417 $spacing = '';
6418 $prev_state = IN_COMMENT;
6419 }
6420 else
6421 {
6422 last;
6423 }
6424 $saw_bk = check_trailing_slash ($where, $_);
6425 }
6427 # We save the conditional stack on entry, and then check to make
6428 # sure it is the same on exit. This lets us conditionally include
6429 # other files.
6430 my @saved_cond_stack = @cond_stack;
6431 my $cond = new Automake::Condition (@cond_stack);
6433 my $last_var_name = '';
6434 my $last_var_type = '';
6435 my $last_var_value = '';
6436 my $last_where;
6437 # FIXME: shouldn't use $_ in this loop; it is too big.
6438 while ($_)
6439 {
6440 $where->set ("$amfile:$.");
6442 # Make sure the line is \n-terminated.
6443 chomp;
6444 $_ .= "\n";
6446 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6447 # used by users. @MAINT@ is an anachronism now.
6448 $_ =~ s/\@MAINT\@//g
6449 unless $seen_maint_mode;
6451 my $new_saw_bk = check_trailing_slash ($where, $_);
6453 if ($reldir eq '.')
6454 {
6455 # If present, eat the following '_' or '/', converting
6456 # "%reldir%/foo" and "%canon_reldir%_foo" into plain "foo"
6457 # when $reldir is '.'.
6458 $_ =~ s,%(D|reldir)%/,,g;
6459 $_ =~ s,%(C|canon_reldir)%_,,g;
6460 }
6461 $_ =~ s/%(D|reldir)%/${reldir}/g;
6462 $_ =~ s/%(C|canon_reldir)%/${canon_reldir}/g;
6464 if (/$IGNORE_PATTERN/o)
6465 {
6466 # Merely delete comments beginning with two hashes.
6468 # Keep any backslash from the previous line.
6469 $new_saw_bk = $saw_bk;
6470 }
6471 elsif (/$WHITE_PATTERN/o)
6472 {
6473 # Stick a single white line before the incoming macro or rule.
6474 $spacing = "\n";
6475 error $where, "blank line following trailing backslash"
6476 if $saw_bk;
6477 }
6478 elsif (/$COMMENT_PATTERN/o)
6479 {
6480 error $where, "comment following trailing backslash"
6481 if $saw_bk && $prev_state != IN_COMMENT;
6483 # Stick comments before the incoming macro or rule.
6484 $comment .= $spacing . $_;
6485 $spacing = '';
6486 $prev_state = IN_COMMENT;
6487 }
6488 elsif ($saw_bk)
6489 {
6490 if ($prev_state == IN_RULE_DEF)
6491 {
6492 my $cond = new Automake::Condition @cond_stack;
6493 $output_trailer .= $cond->subst_string;
6494 $output_trailer .= $_;
6495 }
6496 elsif ($prev_state == IN_COMMENT)
6497 {
6498 # If the line doesn't start with a '#', add it.
6499 # We do this because a continued comment like
6500 # # A = foo \
6501 # bar \
6502 # baz
6503 # is not portable. BSD make doesn't honor
6504 # escaped newlines in comments.
6505 s/^#?/#/;
6506 $comment .= $spacing . $_;
6507 }
6508 else # $prev_state == IN_VAR_DEF
6509 {
6510 $last_var_value .= ' '
6511 unless $last_var_value =~ /\s$/;
6512 $last_var_value .= $_;
6514 if (!/\\$/)
6515 {
6516 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6517 $last_var_type, $cond,
6518 $last_var_value, $comment,
6519 $last_where, VAR_ASIS)
6520 if $cond != FALSE;
6521 $comment = $spacing = '';
6522 }
6523 }
6524 }
6526 elsif (/$IF_PATTERN/o)
6527 {
6528 $cond = cond_stack_if ($1, $2, $where);
6529 }
6530 elsif (/$ELSE_PATTERN/o)
6531 {
6532 $cond = cond_stack_else ($1, $2, $where);
6533 }
6534 elsif (/$ENDIF_PATTERN/o)
6535 {
6536 $cond = cond_stack_endif ($1, $2, $where);
6537 }
6539 elsif (/$RULE_PATTERN/o)
6540 {
6541 # Found a rule.
6542 $prev_state = IN_RULE_DEF;
6544 # For now we have to output all definitions of user rules
6545 # and can't diagnose duplicates (see the comment in
6546 # Automake::Rule::define). So we go on and ignore the return value.
6547 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6549 check_variable_expansions ($_, $where);
6551 $output_trailer .= $comment . $spacing;
6552 my $cond = new Automake::Condition @cond_stack;
6553 $output_trailer .= $cond->subst_string;
6554 $output_trailer .= $_;
6555 $comment = $spacing = '';
6556 }
6557 elsif (/$ASSIGNMENT_PATTERN/o)
6558 {
6559 # Found a macro definition.
6560 $prev_state = IN_VAR_DEF;
6561 $last_var_name = $1;
6562 $last_var_type = $2;
6563 $last_var_value = $3;
6564 $last_where = $where->clone;
6565 if ($3 ne '' && substr ($3, -1) eq "\\")
6566 {
6567 # We preserve the '\' because otherwise the long lines
6568 # that are generated will be truncated by broken
6569 # 'sed's.
6570 $last_var_value = $3 . "\n";
6571 }
6572 # Normally we try to output variable definitions in the
6573 # same format they were input. However, POSIX compliant
6574 # systems are not required to support lines longer than
6575 # 2048 bytes (most notably, some sed implementation are
6576 # limited to 4000 bytes, and sed is used by config.status
6577 # to rewrite Makefile.in into Makefile). Moreover nobody
6578 # would really write such long lines by hand since it is
6579 # hardly maintainable. So if a line is longer that 1000
6580 # bytes (an arbitrary limit), assume it has been
6581 # automatically generated by some tools, and flatten the
6582 # variable definition. Otherwise, keep the variable as it
6583 # as been input.
6584 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6586 if (!/\\$/)
6587 {
6588 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6589 $last_var_type, $cond,
6590 $last_var_value, $comment,
6591 $last_where, $var_look)
6592 if $cond != FALSE;
6593 $comment = $spacing = '';
6594 $var_look = VAR_ASIS;
6595 }
6596 }
6597 elsif (/$INCLUDE_PATTERN/o)
6598 {
6599 my $path = $1;
6601 if ($path =~ s/^\$\(top_srcdir\)\///)
6602 {
6603 push (@include_stack, "\$\(top_srcdir\)/$path");
6604 # Distribute any included file.
6606 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6607 # otherwise OSF make will implicitly copy the included
6608 # file in the build tree during "make distdir" to satisfy
6609 # the dependency.
6610 # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
6611 push_dist_common ("\$\(top_srcdir\)/$path");
6612 }
6613 else
6614 {
6615 $path =~ s/\$\(srcdir\)\///;
6616 push (@include_stack, "\$\(srcdir\)/$path");
6617 # Always use the $(srcdir) prefix in DIST_COMMON,
6618 # otherwise OSF make will implicitly copy the included
6619 # file in the build tree during "make distdir" to satisfy
6620 # the dependency.
6621 # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
6622 push_dist_common ("\$\(srcdir\)/$path");
6623 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6624 }
6625 my $new_reldir = File::Spec->abs2rel ($path, $relative_dir);
6626 $new_reldir = '.' if $new_reldir !~ s,/[^/]*$,,;
6627 $where->push_context ("'$path' included from here");
6628 read_am_file ($path, $where, $new_reldir);
6629 $where->pop_context;
6630 }
6631 else
6632 {
6633 # This isn't an error; it is probably a continued rule.
6634 # In fact, this is what we assume.
6635 $prev_state = IN_RULE_DEF;
6636 check_variable_expansions ($_, $where);
6637 $output_trailer .= $comment . $spacing;
6638 my $cond = new Automake::Condition @cond_stack;
6639 $output_trailer .= $cond->subst_string;
6640 $output_trailer .= $_;
6641 $comment = $spacing = '';
6642 error $where, "'#' comment at start of rule is unportable"
6643 if $_ =~ /^\t\s*\#/;
6644 }
6646 $saw_bk = $new_saw_bk;
6647 $_ = $am_file->getline;
6648 }
6650 $output_trailer .= $comment;
6652 error ($where, "trailing backslash on last line")
6653 if $saw_bk;
6655 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6656 : "too many conditionals closed in include file"))
6657 if "@saved_cond_stack" ne "@cond_stack";
6658 }
6661 # A helper for read_main_am_file which initializes configure variables
6662 # and variables from header-vars.am.
6663 sub define_standard_variables ()
6664 {
6665 my $saved_output_vars = $output_vars;
6666 my ($comments, undef, $rules) =
6667 file_contents_internal (1, "$libdir/am/header-vars.am",
6668 new Automake::Location);
6670 foreach my $var (sort keys %configure_vars)
6671 {
6672 define_configure_variable ($var);
6673 }
6675 $output_vars .= $comments . $rules;
6676 }
6679 # read_main_am_file ($MAKEFILE_AM, $MAKEFILE_IN)
6680 # ----------------------------------------------
6681 sub read_main_am_file
6682 {
6683 my ($amfile, $infile) = @_;
6685 # This supports the strange variable tricks we are about to play.
6686 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6687 if (scalar (variables) > 0);
6689 # Generate copyright header for generated Makefile.in.
6690 # We do discard the output of predefined variables, handled below.
6691 $output_vars = ("# " . basename ($infile) . " generated by automake "
6692 . $VERSION . " from " . basename ($amfile) . ".\n");
6693 $output_vars .= '# ' . subst ('configure_input') . "\n";
6694 $output_vars .= $gen_copyright;
6696 # We want to predefine as many variables as possible. This lets
6697 # the user set them with '+=' in Makefile.am.
6698 define_standard_variables;
6700 # Read user file, which might override some of our values.
6701 read_am_file ($amfile, new Automake::Location, '.');
6702 }
6706 ################################################################
6708 # $STRING
6709 # flatten ($ORIGINAL_STRING)
6710 # --------------------------
6711 sub flatten
6712 {
6713 $_ = shift;
6715 s/\\\n//somg;
6716 s/\s+/ /g;
6717 s/^ //;
6718 s/ $//;
6720 return $_;
6721 }
6724 # transform_token ($TOKEN, \%PAIRS, $KEY)
6725 # ---------------------------------------
6726 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6727 # (which should be ?KEY? or any of the special %% requests)..
6728 sub transform_token ($\%$)
6729 {
6730 my ($token, $transform, $key) = @_;
6731 my $res = $transform->{$key};
6732 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6733 return $res;
6734 }
6737 # transform ($TOKEN, \%PAIRS)
6738 # ---------------------------
6739 # If ($TOKEN, $VAL) is in %PAIRS:
6740 # - replaces %KEY% with $VAL,
6741 # - enables/disables ?KEY? and ?!KEY?,
6742 # - replaces %?KEY% with TRUE or FALSE.
6743 sub transform ($\%)
6744 {
6745 my ($token, $transform) = @_;
6747 # %KEY%.
6748 # Must be before the following pattern to exclude the case
6749 # when there is neither IFTRUE nor IFFALSE.
6750 if ($token =~ /^%([\w\-]+)%$/)
6751 {
6752 return transform_token ($token, %$transform, $1);
6753 }
6754 # %?KEY%.
6755 elsif ($token =~ /^%\?([\w\-]+)%$/)
6756 {
6757 return transform_token ($token, %$transform, $1) ? 'TRUE' : 'FALSE';
6758 }
6759 # ?KEY? and ?!KEY?.
6760 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6761 {
6762 my $neg = ($1 eq '!') ? 1 : 0;
6763 my $val = transform_token ($token, %$transform, $2);
6764 return (!!$val == $neg) ? '##%' : '';
6765 }
6766 else
6767 {
6768 prog_error "Unknown request format: $token";
6769 }
6770 }
6772 # $TEXT
6773 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6774 # -----------------------------------------
6775 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6776 # No extra parsing or post-processing is done (i.e., recognition of
6777 # rules declaration or of make variables definitions).
6778 sub preprocess_file
6779 {
6780 my ($file, %transform) = @_;
6782 # Complete %transform with global options.
6783 # Note that %transform goes last, so it overrides global options.
6784 %transform = ( 'MAINTAINER-MODE'
6785 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6787 'XZ' => !! option 'dist-xz',
6788 'LZIP' => !! option 'dist-lzip',
6789 'BZIP2' => !! option 'dist-bzip2',
6790 'COMPRESS' => !! option 'dist-tarZ',
6791 'GZIP' => ! option 'no-dist-gzip',
6792 'SHAR' => !! option 'dist-shar',
6793 'ZIP' => !! option 'dist-zip',
6795 'INSTALL-INFO' => ! option 'no-installinfo',
6796 'INSTALL-MAN' => ! option 'no-installman',
6797 'CK-NEWS' => !! option 'check-news',
6799 'SUBDIRS' => !! var ('SUBDIRS'),
6800 'TOPDIR_P' => $relative_dir eq '.',
6802 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6803 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6804 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6806 'LIBTOOL' => !! var ('LIBTOOL'),
6807 'NONLIBTOOL' => 1,
6808 %transform);
6810 if (! defined ($_ = $am_file_cache{$file}))
6811 {
6812 verb "reading $file";
6813 # Swallow the whole file.
6814 my $fc_file = new Automake::XFile "< $file";
6815 my $saved_dollar_slash = $/;
6816 undef $/;
6817 $_ = $fc_file->getline;
6818 $/ = $saved_dollar_slash;
6819 $fc_file->close;
6820 # Remove ##-comments.
6821 # Besides we don't need more than two consecutive new-lines.
6822 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6823 # Remember the contents of the just-read file.
6824 $am_file_cache{$file} = $_;
6825 }
6827 # Substitute Automake template tokens.
6828 s/(?: % \?? [\w\-]+ %
6829 | \? !? [\w\-]+ \?
6830 )/transform($&, %transform)/gex;
6831 # transform() may have added some ##%-comments to strip.
6832 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6833 # ####### and do not remove the latter.)
6834 s/^[ \t]*(?:##%)+.*\n//gm;
6836 return $_;
6837 }
6840 # @PARAGRAPHS
6841 # make_paragraphs ($MAKEFILE, [%TRANSFORM])
6842 # -----------------------------------------
6843 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6844 # paragraphs.
6845 sub make_paragraphs
6846 {
6847 my ($file, %transform) = @_;
6848 $transform{FIRST} = !$transformed_files{$file};
6849 $transformed_files{$file} = 1;
6851 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6852 my @res;
6854 while (defined ($_ = shift @lines))
6855 {
6856 my $paragraph = $_;
6857 # If we are a rule, eat as long as we start with a tab.
6858 if (/$RULE_PATTERN/smo)
6859 {
6860 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6861 {
6862 $paragraph .= "\n$_";
6863 }
6864 unshift (@lines, $_);
6865 }
6867 # If we are a comments, eat as much comments as you can.
6868 elsif (/$COMMENT_PATTERN/smo)
6869 {
6870 while (defined ($_ = shift @lines)
6871 && $_ =~ /$COMMENT_PATTERN/smo)
6872 {
6873 $paragraph .= "\n$_";
6874 }
6875 unshift (@lines, $_);
6876 }
6878 push @res, $paragraph;
6879 }
6881 return @res;
6882 }
6886 # ($COMMENT, $VARIABLES, $RULES)
6887 # file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6888 # ------------------------------------------------------------
6889 # Return contents of a file from $libdir/am, automatically skipping
6890 # macros or rules which are already known. $IS_AM iff the caller is
6891 # reading an Automake file (as opposed to the user's Makefile.am).
6892 sub file_contents_internal
6893 {
6894 my ($is_am, $file, $where, %transform) = @_;
6896 $where->set ($file);
6898 my $result_vars = '';
6899 my $result_rules = '';
6900 my $comment = '';
6901 my $spacing = '';
6903 # The following flags are used to track rules spanning across
6904 # multiple paragraphs.
6905 my $is_rule = 0; # 1 if we are processing a rule.
6906 my $discard_rule = 0; # 1 if the current rule should not be output.
6908 # We save the conditional stack on entry, and then check to make
6909 # sure it is the same on exit. This lets us conditionally include
6910 # other files.
6911 my @saved_cond_stack = @cond_stack;
6912 my $cond = new Automake::Condition (@cond_stack);
6914 foreach (make_paragraphs ($file, %transform))
6915 {
6916 # FIXME: no line number available.
6917 $where->set ($file);
6919 # Sanity checks.
6920 error $where, "blank line following trailing backslash:\n$_"
6921 if /\\$/;
6922 error $where, "comment following trailing backslash:\n$_"
6923 if /\\#/;
6925 if (/^$/)
6926 {
6927 $is_rule = 0;
6928 # Stick empty line before the incoming macro or rule.
6929 $spacing = "\n";
6930 }
6931 elsif (/$COMMENT_PATTERN/mso)
6932 {
6933 $is_rule = 0;
6934 # Stick comments before the incoming macro or rule.
6935 $comment = "$_\n";
6936 }
6938 # Handle inclusion of other files.
6939 elsif (/$INCLUDE_PATTERN/o)
6940 {
6941 if ($cond != FALSE)
6942 {
6943 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6944 $where->push_context ("'$file' included from here");
6945 # N-ary '.=' fails.
6946 my ($com, $vars, $rules)
6947 = file_contents_internal ($is_am, $file, $where, %transform);
6948 $where->pop_context;
6949 $comment .= $com;
6950 $result_vars .= $vars;
6951 $result_rules .= $rules;
6952 }
6953 }
6955 # Handling the conditionals.
6956 elsif (/$IF_PATTERN/o)
6957 {
6958 $cond = cond_stack_if ($1, $2, $file);
6959 }
6960 elsif (/$ELSE_PATTERN/o)
6961 {
6962 $cond = cond_stack_else ($1, $2, $file);
6963 }
6964 elsif (/$ENDIF_PATTERN/o)
6965 {
6966 $cond = cond_stack_endif ($1, $2, $file);
6967 }
6969 # Handling rules.
6970 elsif (/$RULE_PATTERN/mso)
6971 {
6972 $is_rule = 1;
6973 $discard_rule = 0;
6974 # Separate relationship from optional actions: the first
6975 # `new-line tab" not preceded by backslash (continuation
6976 # line).
6977 my $paragraph = $_;
6978 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6979 my ($relationship, $actions) = ($1, $2 || '');
6981 # Separate targets from dependencies: the first colon.
6982 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6983 my ($targets, $dependencies) = ($1, $2);
6984 # Remove the escaped new lines.
6985 # I don't know why, but I have to use a tmp $flat_deps.
6986 my $flat_deps = flatten ($dependencies);
6987 my @deps = split (' ', $flat_deps);
6989 foreach (split (' ', $targets))
6990 {
6991 # FIXME: 1. We are not robust to people defining several targets
6992 # at once, only some of them being in %dependencies. The
6993 # actions from the targets in %dependencies are usually generated
6994 # from the content of %actions, but if some targets in $targets
6995 # are not in %dependencies the ELSE branch will output
6996 # a rule for all $targets (i.e. the targets which are both
6997 # in %dependencies and $targets will have two rules).
6999 # FIXME: 2. The logic here is not able to output a
7000 # multi-paragraph rule several time (e.g. for each condition
7001 # it is defined for) because it only knows the first paragraph.
7003 # FIXME: 3. We are not robust to people defining a subset
7004 # of a previously defined "multiple-target" rule. E.g.
7005 # 'foo:' after 'foo bar:'.
7007 # Output only if not in FALSE.
7008 if (defined $dependencies{$_} && $cond != FALSE)
7009 {
7010 depend ($_, @deps);
7011 register_action ($_, $actions);
7012 }
7013 else
7014 {
7015 # Free-lance dependency. Output the rule for all the
7016 # targets instead of one by one.
7017 my @undefined_conds =
7018 Automake::Rule::define ($targets, $file,
7019 $is_am ? RULE_AUTOMAKE : RULE_USER,
7020 $cond, $where);
7021 for my $undefined_cond (@undefined_conds)
7022 {
7023 my $condparagraph = $paragraph;
7024 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7025 $result_rules .= "$spacing$comment$condparagraph\n";
7026 }
7027 if (scalar @undefined_conds == 0)
7028 {
7029 # Remember to discard next paragraphs
7030 # if they belong to this rule.
7031 # (but see also FIXME: #2 above.)
7032 $discard_rule = 1;
7033 }
7034 $comment = $spacing = '';
7035 last;
7036 }
7037 }
7038 }
7040 elsif (/$ASSIGNMENT_PATTERN/mso)
7041 {
7042 my ($var, $type, $val) = ($1, $2, $3);
7043 error $where, "variable '$var' with trailing backslash"
7044 if /\\$/;
7046 $is_rule = 0;
7048 Automake::Variable::define ($var,
7049 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7050 $type, $cond, $val, $comment, $where,
7051 VAR_ASIS)
7052 if $cond != FALSE;
7054 $comment = $spacing = '';
7055 }
7056 else
7057 {
7058 # This isn't an error; it is probably some tokens which
7059 # configure is supposed to replace, such as '@SET-MAKE@',
7060 # or some part of a rule cut by an if/endif.
7061 if (! $cond->false && ! ($is_rule && $discard_rule))
7062 {
7063 s/^/$cond->subst_string/gme;
7064 $result_rules .= "$spacing$comment$_\n";
7065 }
7066 $comment = $spacing = '';
7067 }
7068 }
7070 error ($where, @cond_stack ?
7071 "unterminated conditionals: @cond_stack" :
7072 "too many conditionals closed in include file")
7073 if "@saved_cond_stack" ne "@cond_stack";
7075 return ($comment, $result_vars, $result_rules);
7076 }
7079 # $CONTENTS
7080 # file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7081 # -----------------------------------------------
7082 # Return contents of a file from $libdir/am, automatically skipping
7083 # macros or rules which are already known.
7084 sub file_contents
7085 {
7086 my ($basename, $where, %transform) = @_;
7087 my ($comments, $variables, $rules) =
7088 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7089 %transform);
7090 return "$comments$variables$rules";
7091 }
7094 # @PREFIX
7095 # am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7096 # ----------------------------------------------------
7097 # Find all variable prefixes that are used for install directories. A
7098 # prefix 'zar' qualifies iff:
7099 #
7100 # * 'zardir' is a variable.
7101 # * 'zar_PRIMARY' is a variable.
7102 #
7103 # As a side effect, it looks for misspellings. It is an error to have
7104 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7105 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7106 # of the same name (with "dir" appended) exists. For instance, if the
7107 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7108 # This is to provide a little extra flexibility in those cases which
7109 # need it.
7110 sub am_primary_prefixes
7111 {
7112 my ($primary, $can_dist, @prefixes) = @_;
7114 local $_;
7115 my %valid = map { $_ => 0 } @prefixes;
7116 $valid{'EXTRA'} = 0;
7117 foreach my $var (variables $primary)
7118 {
7119 # Automake is allowed to define variables that look like primaries
7120 # but which aren't. E.g. INSTALL_sh_DATA.
7121 # Autoconf can also define variables like INSTALL_DATA, so
7122 # ignore all configure variables (at least those which are not
7123 # redefined in Makefile.am).
7124 # FIXME: We should make sure that these variables are not
7125 # conditionally defined (or else adjust the condition below).
7126 my $def = $var->def (TRUE);
7127 next if $def && $def->owner != VAR_MAKEFILE;
7129 my $varname = $var->name;
7131 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7132 {
7133 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7134 if ($dist ne '' && ! $can_dist)
7135 {
7136 err_var ($var,
7137 "invalid variable '$varname': 'dist' is forbidden");
7138 }
7139 # Standard directories must be explicitly allowed.
7140 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7141 {
7142 err_var ($var,
7143 "'${X}dir' is not a legitimate directory " .
7144 "for '$primary'");
7145 }
7146 # A not explicitly valid directory is allowed if Xdir is defined.
7147 elsif (! defined $valid{$X} &&
7148 $var->requires_variables ("'$varname' is used", "${X}dir"))
7149 {
7150 # Nothing to do. Any error message has been output
7151 # by $var->requires_variables.
7152 }
7153 else
7154 {
7155 # Ensure all extended prefixes are actually used.
7156 $valid{"$base$dist$X"} = 1;
7157 }
7158 }
7159 else
7160 {
7161 prog_error "unexpected variable name: $varname";
7162 }
7163 }
7165 # Return only those which are actually defined.
7166 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7167 }
7170 # am_install_var (-OPTION..., file, HOW, where...)
7171 # ------------------------------------------------
7172 #
7173 # Handle 'where_HOW' variable magic. Does all lookups, generates
7174 # install code, and possibly generates code to define the primary
7175 # variable. The first argument is the name of the .am file to munge,
7176 # the second argument is the primary variable (e.g. HEADERS), and all
7177 # subsequent arguments are possible installation locations.
7178 #
7179 # Returns list of [$location, $value] pairs, where
7180 # $value's are the values in all where_HOW variable, and $location
7181 # there associated location (the place here their parent variables were
7182 # defined).
7183 #
7184 # FIXME: this should be rewritten to be cleaner. It should be broken
7185 # up into multiple functions.
7186 #
7187 sub am_install_var
7188 {
7189 my (@args) = @_;
7191 my $do_require = 1;
7192 my $can_dist = 0;
7193 my $default_dist = 0;
7194 while (@args)
7195 {
7196 if ($args[0] eq '-noextra')
7197 {
7198 $do_require = 0;
7199 }
7200 elsif ($args[0] eq '-candist')
7201 {
7202 $can_dist = 1;
7203 }
7204 elsif ($args[0] eq '-defaultdist')
7205 {
7206 $default_dist = 1;
7207 $can_dist = 1;
7208 }
7209 elsif ($args[0] !~ /^-/)
7210 {
7211 last;
7212 }
7213 shift (@args);
7214 }
7216 my ($file, $primary, @prefix) = @args;
7218 # Now that configure substitutions are allowed in where_HOW
7219 # variables, it is an error to actually define the primary. We
7220 # allow 'JAVA', as it is customarily used to mean the Java
7221 # interpreter. This is but one of several Java hacks. Similarly,
7222 # 'PYTHON' is customarily used to mean the Python interpreter.
7223 reject_var $primary, "'$primary' is an anachronism"
7224 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7226 # Get the prefixes which are valid and actually used.
7227 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7229 # If a primary includes a configure substitution, then the EXTRA_
7230 # form is required. Otherwise we can't properly do our job.
7231 my $require_extra;
7233 my @used = ();
7234 my @result = ();
7236 foreach my $X (@prefix)
7237 {
7238 my $nodir_name = $X;
7239 my $one_name = $X . '_' . $primary;
7240 my $one_var = var $one_name;
7242 my $strip_subdir = 1;
7243 # If subdir prefix should be preserved, do so.
7244 if ($nodir_name =~ /^nobase_/)
7245 {
7246 $strip_subdir = 0;
7247 $nodir_name =~ s/^nobase_//;
7248 }
7250 # If files should be distributed, do so.
7251 my $dist_p = 0;
7252 if ($can_dist)
7253 {
7254 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7255 || (! $default_dist && $nodir_name =~ /^dist_/));
7256 $nodir_name =~ s/^(dist|nodist)_//;
7257 }
7260 # Use the location of the currently processed variable.
7261 # We are not processing a particular condition, so pick the first
7262 # available.
7263 my $tmpcond = $one_var->conditions->one_cond;
7264 my $where = $one_var->rdef ($tmpcond)->location->clone;
7266 # Append actual contents of where_PRIMARY variable to
7267 # @result, skipping @substitutions@.
7268 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7269 {
7270 my ($loc, $value) = @$locvals;
7271 # Skip configure substitutions.
7272 if ($value =~ /^\@.*\@$/)
7273 {
7274 if ($nodir_name eq 'EXTRA')
7275 {
7276 error ($where,
7277 "'$one_name' contains configure substitution, "
7278 . "but shouldn't");
7279 }
7280 # Check here to make sure variables defined in
7281 # configure.ac do not imply that EXTRA_PRIMARY
7282 # must be defined.
7283 elsif (! defined $configure_vars{$one_name})
7284 {
7285 $require_extra = $one_name
7286 if $do_require;
7287 }
7288 }
7289 else
7290 {
7291 # Strip any $(EXEEXT) suffix the user might have added,
7292 # or this will confuse handle_source_transform() and
7293 # check_canonical_spelling().
7294 # We'll add $(EXEEXT) back later anyway.
7295 # Do it here rather than in handle_programs so the
7296 # uniquifying at the end of this function works.
7297 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7298 if $primary eq 'PROGRAMS';
7300 push (@result, $locvals);
7301 }
7302 }
7303 # A blatant hack: we rewrite each _PROGRAMS primary to include
7304 # EXEEXT.
7305 append_exeext { 1 } $one_name
7306 if $primary eq 'PROGRAMS';
7307 # "EXTRA" shouldn't be used when generating clean targets,
7308 # all, or install targets. We used to warn if EXTRA_FOO was
7309 # defined uselessly, but this was annoying.
7310 next
7311 if $nodir_name eq 'EXTRA';
7313 if ($nodir_name eq 'check')
7314 {
7315 push (@check, '$(' . $one_name . ')');
7316 }
7317 else
7318 {
7319 push (@used, '$(' . $one_name . ')');
7320 }
7322 # Is this to be installed?
7323 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7325 # If so, with install-exec? (or install-data?).
7326 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7328 my $check_options_p = $install_p && !! option 'std-options';
7330 # Use the location of the currently processed variable as context.
7331 $where->push_context ("while processing '$one_name'");
7333 # The variable containing all files to distribute.
7334 my $distvar = "\$($one_name)";
7335 $distvar = shadow_unconditionally ($one_name, $where)
7336 if ($dist_p && $one_var->has_conditional_contents);
7338 # Singular form of $PRIMARY.
7339 (my $one_primary = $primary) =~ s/S$//;
7340 $output_rules .= file_contents ($file, $where,
7341 PRIMARY => $primary,
7342 ONE_PRIMARY => $one_primary,
7343 DIR => $X,
7344 NDIR => $nodir_name,
7345 BASE => $strip_subdir,
7346 EXEC => $exec_p,
7347 INSTALL => $install_p,
7348 DIST => $dist_p,
7349 DISTVAR => $distvar,
7350 'CK-OPTS' => $check_options_p);
7351 }
7353 # The JAVA variable is used as the name of the Java interpreter.
7354 # The PYTHON variable is used as the name of the Python interpreter.
7355 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7356 {
7357 # Define it.
7358 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7359 $output_vars .= "\n";
7360 }
7362 err_var ($require_extra,
7363 "'$require_extra' contains configure substitution,\n"
7364 . "but 'EXTRA_$primary' not defined")
7365 if ($require_extra && ! var ('EXTRA_' . $primary));
7367 # Push here because PRIMARY might be configure time determined.
7368 push (@all, '$(' . $primary . ')')
7369 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7371 # Make the result unique. This lets the user use conditionals in
7372 # a natural way, but still lets us program lazily -- we don't have
7373 # to worry about handling a particular object more than once.
7374 # We will keep only one location per object.
7375 my %result = ();
7376 for my $pair (@result)
7377 {
7378 my ($loc, $val) = @$pair;
7379 $result{$val} = $loc;
7380 }
7381 my @l = sort keys %result;
7382 return map { [$result{$_}->clone, $_] } @l;
7383 }
7386 ################################################################
7388 # Each key in this hash is the name of a directory holding a
7389 # Makefile.in. These variables are local to 'is_make_dir'.
7390 my %make_dirs = ();
7391 my $make_dirs_set = 0;
7393 # is_make_dir ($DIRECTORY)
7394 # ------------------------
7395 sub is_make_dir
7396 {
7397 my ($dir) = @_;
7398 if (! $make_dirs_set)
7399 {
7400 foreach my $iter (@configure_input_files)
7401 {
7402 $make_dirs{dirname ($iter)} = 1;
7403 }
7404 # We also want to notice Makefile.in's.
7405 foreach my $iter (@other_input_files)
7406 {
7407 if ($iter =~ /Makefile\.in$/)
7408 {
7409 $make_dirs{dirname ($iter)} = 1;
7410 }
7411 }
7412 $make_dirs_set = 1;
7413 }
7414 return defined $make_dirs{$dir};
7415 }
7417 ################################################################
7419 # Find the aux dir. This should match the algorithm used by
7420 # ./configure. (See the Autoconf documentation for for
7421 # AC_CONFIG_AUX_DIR.)
7422 sub locate_aux_dir ()
7423 {
7424 if (! $config_aux_dir_set_in_configure_ac)
7425 {
7426 # The default auxiliary directory is the first
7427 # of ., .., or ../.. that contains install-sh.
7428 # Assume . if install-sh doesn't exist yet.
7429 for my $dir (qw (. .. ../..))
7430 {
7431 if (-f "$dir/install-sh")
7432 {
7433 $config_aux_dir = $dir;
7434 last;
7435 }
7436 }
7437 $config_aux_dir = '.' unless $config_aux_dir;
7438 }
7439 # Avoid unsightly '/.'s.
7440 $am_config_aux_dir =
7441 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7442 $am_config_aux_dir =~ s,/*$,,;
7443 }
7446 # push_required_file ($DIR, $FILE, $FULLFILE)
7447 # -------------------------------------------
7448 # Push the given file onto DIST_COMMON.
7449 sub push_required_file
7450 {
7451 my ($dir, $file, $fullfile) = @_;
7453 # If the file to be distributed is in the same directory of the
7454 # currently processed Makefile.am, then we want to distribute it
7455 # from this same Makefile.am.
7456 if ($dir eq $relative_dir)
7457 {
7458 push_dist_common ($file);
7459 }
7460 # This is needed to allow a construct in a non-top-level Makefile.am
7461 # to require a file in the build-aux directory (see at least the test
7462 # script 'test-driver-is-distributed.sh'). This is related to the
7463 # automake bug#9546. Note that the use of $config_aux_dir instead
7464 # of $am_config_aux_dir here is deliberate and necessary.
7465 elsif ($dir eq $config_aux_dir)
7466 {
7467 push_dist_common ("$am_config_aux_dir/$file");
7468 }
7469 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7470 # We probably need some refactoring of this function and its callers,
7471 # to have a more explicit and systematic handling of all the special
7472 # cases; but, since there are only two of them, this is low-priority
7473 # ATM.
7474 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7475 {
7476 # Avoid unsightly '/.'s.
7477 my $am_config_libobj_dir =
7478 '$(top_srcdir)' .
7479 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7480 $am_config_libobj_dir =~ s|/*$||;
7481 push_dist_common ("$am_config_libobj_dir/$file");
7482 }
7483 elsif ($relative_dir eq '.' && ! is_make_dir ($dir))
7484 {
7485 # If we are doing the topmost directory, and the file is in a
7486 # subdir which does not have a Makefile, then we distribute it
7487 # here.
7489 # If a required file is above the source tree, it is important
7490 # to prefix it with '$(srcdir)' so that no VPATH search is
7491 # performed. Otherwise problems occur with Make implementations
7492 # that rewrite and simplify rules whose dependencies are found in a
7493 # VPATH location. Here is an example with OSF1/Tru64 Make.
7494 #
7495 # % cat Makefile
7496 # VPATH = sub
7497 # distdir: ../a
7498 # echo ../a
7499 # % ls
7500 # Makefile a
7501 # % make
7502 # echo a
7503 # a
7504 #
7505 # Dependency '../a' was found in 'sub/../a', but this make
7506 # implementation simplified it as 'a'. (Note that the sub/
7507 # directory does not even exist.)
7508 #
7509 # This kind of VPATH rewriting seems hard to cancel. The
7510 # distdir.am hack against VPATH rewriting works only when no
7511 # simplification is done, i.e., for dependencies which are in
7512 # subdirectories, not in enclosing directories. Hence, in
7513 # the latter case we use a full path to make sure no VPATH
7514 # search occurs.
7515 $fullfile = '$(srcdir)/' . $fullfile
7516 if $dir =~ m,^\.\.(?:$|/),;
7518 push_dist_common ($fullfile);
7519 }
7520 else
7521 {
7522 prog_error "a Makefile in relative directory $relative_dir " .
7523 "can't add files in directory $dir to DIST_COMMON";
7524 }
7525 }
7528 # If a file name appears as a key in this hash, then it has already
7529 # been checked for. This allows us not to report the same error more
7530 # than once.
7531 my %required_file_not_found = ();
7533 # required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7534 # -------------------------------------------------------
7535 # Verify that the file must exist in $DIRECTORY, or install it.
7536 sub required_file_check_or_copy
7537 {
7538 my ($where, $dir, $file) = @_;
7540 my $fullfile = "$dir/$file";
7541 my $found_it = 0;
7542 my $dangling_sym = 0;
7544 if (-l $fullfile && ! -f $fullfile)
7545 {
7546 $dangling_sym = 1;
7547 }
7548 elsif (dir_has_case_matching_file ($dir, $file))
7549 {
7550 $found_it = 1;
7551 }
7553 # '--force-missing' only has an effect if '--add-missing' is
7554 # specified.
7555 return
7556 if $found_it && (! $add_missing || ! $force_missing);
7558 # If we've already looked for it, we're done. You might wonder why we
7559 # don't do this before searching for the file. If we do that, then
7560 # something like AC_OUTPUT([subdir/foo foo]) will fail to put 'foo.in'
7561 # into $(DIST_COMMON).
7562 if (! $found_it)
7563 {
7564 return if defined $required_file_not_found{$fullfile};
7565 $required_file_not_found{$fullfile} = 1;
7566 }
7567 if ($dangling_sym && $add_missing)
7568 {
7569 unlink ($fullfile);
7570 }
7572 my $trailer = '';
7573 my $trailer2 = '';
7574 my $suppress = 0;
7576 # Only install missing files according to our desired
7577 # strictness level.
7578 my $message = "required file '$fullfile' not found";
7579 if ($add_missing)
7580 {
7581 if (-f "$libdir/$file")
7582 {
7583 $suppress = 1;
7585 # Install the missing file. Symlink if we
7586 # can, copy if we must. Note: delete the file
7587 # first, in case it is a dangling symlink.
7588 $message = "installing '$fullfile'";
7590 # The license file should not be volatile.
7591 if ($file eq "COPYING")
7592 {
7593 $message .= " using GNU General Public License v3 file";
7594 $trailer2 = "\n Consider adding the COPYING file"
7595 . " to the version control system"
7596 . "\n for your code, to avoid questions"
7597 . " about which license your project uses";
7598 }
7600 # Windows Perl will hang if we try to delete a
7601 # file that doesn't exist.
7602 unlink ($fullfile) if -f $fullfile;
7603 if ($symlink_exists && ! $copy_missing)
7604 {
7605 if (! symlink ("$libdir/$file", $fullfile)
7606 || ! -e $fullfile)
7607 {
7608 $suppress = 0;
7609 $trailer = "; error while making link: $!";
7610 }
7611 }
7612 elsif (system ('cp', "$libdir/$file", $fullfile))
7613 {
7614 $suppress = 0;
7615 $trailer = "\n error while copying";
7616 }
7617 set_dir_cache_file ($dir, $file);
7618 }
7619 }
7620 else
7621 {
7622 $trailer = "\n 'automake --add-missing' can install '$file'"
7623 if -f "$libdir/$file";
7624 }
7626 # If --force-missing was specified, and we have
7627 # actually found the file, then do nothing.
7628 return
7629 if $found_it && $force_missing;
7631 # If we couldn't install the file, but it is a target in
7632 # the Makefile, don't print anything. This allows files
7633 # like README, AUTHORS, or THANKS to be generated.
7634 return
7635 if !$suppress && rule $file;
7637 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7638 }
7641 # require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7642 # ---------------------------------------------------------------------
7643 # Verify that the file must exist in $DIRECTORY, or install it.
7644 # $MYSTRICT is the strictness level at which this file becomes required.
7645 # Worker threads may queue up the action to be serialized by the master,
7646 # if $QUEUE is true
7647 sub require_file_internal
7648 {
7649 my ($where, $mystrict, $dir, $queue, @files) = @_;
7651 return
7652 unless $strictness >= $mystrict;
7654 foreach my $file (@files)
7655 {
7656 push_required_file ($dir, $file, "$dir/$file");
7657 if ($queue)
7658 {
7659 queue_required_file_check_or_copy ($required_conf_file_queue,
7660 QUEUE_CONF_FILE, $relative_dir,
7661 $where, $mystrict, @files);
7662 }
7663 else
7664 {
7665 required_file_check_or_copy ($where, $dir, $file);
7666 }
7667 }
7668 }
7670 # require_file ($WHERE, $MYSTRICT, @FILES)
7671 # ----------------------------------------
7672 sub require_file
7673 {
7674 my ($where, $mystrict, @files) = @_;
7675 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7676 }
7678 # require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7679 # ----------------------------------------------------------
7680 sub require_file_with_macro
7681 {
7682 my ($cond, $macro, $mystrict, @files) = @_;
7683 $macro = rvar ($macro) unless ref $macro;
7684 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7685 }
7687 # require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7688 # ---------------------------------------------------------------
7689 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7690 # must be in that directory. Otherwise expect it in the current directory.
7691 sub require_libsource_with_macro
7692 {
7693 my ($cond, $macro, $mystrict, @files) = @_;
7694 $macro = rvar ($macro) unless ref $macro;
7695 if ($config_libobj_dir)
7696 {
7697 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7698 $config_libobj_dir, 0, @files);
7699 }
7700 else
7701 {
7702 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7703 }
7704 }
7706 # queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7707 # $MYSTRICT, @FILES)
7708 # --------------------------------------------------------------
7709 sub queue_required_file_check_or_copy
7710 {
7711 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7712 my @serial_loc;
7713 if (ref $where)
7714 {
7715 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7716 }
7717 else
7718 {
7719 @serial_loc = (QUEUE_STRING, $where);
7720 }
7721 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7722 }
7724 # require_queued_file_check_or_copy ($QUEUE)
7725 # ------------------------------------------
7726 sub require_queued_file_check_or_copy
7727 {
7728 my ($queue) = @_;
7729 my $where;
7730 my $dir = $queue->dequeue ();
7731 my $loc_key = $queue->dequeue ();
7732 if ($loc_key eq QUEUE_LOCATION)
7733 {
7734 $where = Automake::Location::deserialize ($queue);
7735 }
7736 elsif ($loc_key eq QUEUE_STRING)
7737 {
7738 $where = $queue->dequeue ();
7739 }
7740 else
7741 {
7742 prog_error "unexpected key $loc_key";
7743 }
7744 my $mystrict = $queue->dequeue ();
7745 my $nfiles = $queue->dequeue ();
7746 my @files;
7747 push @files, $queue->dequeue ()
7748 foreach (1 .. $nfiles);
7749 return
7750 unless $strictness >= $mystrict;
7751 foreach my $file (@files)
7752 {
7753 required_file_check_or_copy ($where, $config_aux_dir, $file);
7754 }
7755 }
7757 # require_conf_file ($WHERE, $MYSTRICT, @FILES)
7758 # ---------------------------------------------
7759 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7760 sub require_conf_file
7761 {
7762 my ($where, $mystrict, @files) = @_;
7763 my $queue = defined $required_conf_file_queue ? 1 : 0;
7764 require_file_internal ($where, $mystrict, $config_aux_dir,
7765 $queue, @files);
7766 }
7769 # require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7770 # ---------------------------------------------------------------
7771 sub require_conf_file_with_macro
7772 {
7773 my ($cond, $macro, $mystrict, @files) = @_;
7774 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7775 $mystrict, @files);
7776 }
7778 ################################################################
7780 # require_build_directory ($DIRECTORY)
7781 # ------------------------------------
7782 # Emit rules to create $DIRECTORY if needed, and return
7783 # the file that any target requiring this directory should be made
7784 # dependent upon.
7785 # We don't want to emit the rule twice, and want to reuse it
7786 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7787 sub require_build_directory
7788 {
7789 my $directory = shift;
7791 return $directory_map{$directory} if exists $directory_map{$directory};
7793 my $cdir = File::Spec->canonpath ($directory);
7795 if (exists $directory_map{$cdir})
7796 {
7797 my $stamp = $directory_map{$cdir};
7798 $directory_map{$directory} = $stamp;
7799 return $stamp;
7800 }
7802 my $dirstamp = "$cdir/\$(am__dirstamp)";
7804 $directory_map{$directory} = $dirstamp;
7805 $directory_map{$cdir} = $dirstamp;
7807 # Set a variable for the dirstamp basename.
7808 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7809 '$(am__leading_dot)dirstamp');
7811 # Directory must be removed by 'make distclean'.
7812 $clean_files{$dirstamp} = DIST_CLEAN;
7814 $output_rules .= ("$dirstamp:\n"
7815 . "\t\@\$(MKDIR_P) $directory\n"
7816 . "\t\@: > $dirstamp\n");
7818 return $dirstamp;
7819 }
7821 # require_build_directory_maybe ($FILE)
7822 # -------------------------------------
7823 # If $FILE lies in a subdirectory, emit a rule to create this
7824 # directory and return the file that $FILE should be made
7825 # dependent upon. Otherwise, just return the empty string.
7826 sub require_build_directory_maybe
7827 {
7828 my $file = shift;
7829 my $directory = dirname ($file);
7831 if ($directory ne '.')
7832 {
7833 return require_build_directory ($directory);
7834 }
7835 else
7836 {
7837 return '';
7838 }
7839 }
7841 ################################################################
7843 # Push a list of files onto '@dist_common'.
7844 sub push_dist_common
7845 {
7846 prog_error "push_dist_common run after handle_dist"
7847 if $handle_dist_run;
7848 push @dist_common, @_;
7849 }
7852 ################################################################
7854 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7855 # ----------------------------------------------
7856 # Generate a Makefile.in given the name of the corresponding Makefile and
7857 # the name of the file output by config.status.
7858 sub generate_makefile
7859 {
7860 my ($makefile_am, $makefile_in) = @_;
7862 # Reset all the Makefile.am related variables.
7863 initialize_per_input;
7865 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7866 # warnings for this file. So hold any warning issued before
7867 # we have processed AUTOMAKE_OPTIONS.
7868 buffer_messages ('warning');
7870 # $OUTPUT is encoded. If it contains a ":" then the first element
7871 # is the real output file, and all remaining elements are input
7872 # files. We don't scan or otherwise deal with these input files,
7873 # other than to mark them as dependencies. See the subroutine
7874 # 'scan_autoconf_files' for details.
7875 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7877 $relative_dir = dirname ($makefile);
7879 read_main_am_file ($makefile_am, $makefile_in);
7880 if (not handle_options)
7881 {
7882 # Process buffered warnings.
7883 flush_messages;
7884 # Fatal error. Just return, so we can continue with next file.
7885 return;
7886 }
7887 # Process buffered warnings.
7888 flush_messages;
7890 # There are a few install-related variables that you should not define.
7891 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7892 {
7893 my $v = var $var;
7894 if ($v)
7895 {
7896 my $def = $v->def (TRUE);
7897 prog_error "$var not defined in condition TRUE"
7898 unless $def;
7899 reject_var $var, "'$var' should not be defined"
7900 if $def->owner != VAR_AUTOMAKE;
7901 }
7902 }
7904 # Catch some obsolete variables.
7905 msg_var ('obsolete', 'INCLUDES',
7906 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7907 if var ('INCLUDES');
7909 # Must do this after reading .am file.
7910 define_variable ('subdir', $relative_dir, INTERNAL);
7912 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7913 # recursive rules are enabled.
7914 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7915 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7917 # Check first, because we might modify some state.
7918 check_gnu_standards;
7919 check_gnits_standards;
7921 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7922 handle_gettext;
7924 handle_targets;
7925 handle_libraries;
7926 handle_ltlibraries;
7927 handle_programs;
7928 handle_scripts;
7930 handle_silent;
7932 # These must be run after all the sources are scanned. They use
7933 # variables defined by handle_libraries(), handle_ltlibraries(),
7934 # or handle_programs().
7935 handle_compile;
7936 handle_languages;
7937 handle_libtool;
7939 # Variables used by distdir.am and tags.am.
7940 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7941 if (! option 'no-dist')
7942 {
7943 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7944 }
7946 handle_texinfo;
7947 handle_emacs_lisp;
7948 handle_python;
7949 handle_java;
7950 handle_man_pages;
7951 handle_data;
7952 handle_headers;
7953 handle_subdirs;
7954 handle_user_recursion;
7955 handle_tags;
7956 handle_minor_options;
7957 # Must come after handle_programs so that %known_programs is up-to-date.
7958 handle_tests;
7960 # This must come after most other rules.
7961 handle_dist;
7963 handle_footer;
7964 do_check_merge_target;
7965 handle_all ($makefile);
7967 # FIXME: Gross!
7968 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7969 {
7970 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7971 }
7972 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7973 {
7974 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
7975 }
7977 handle_install;
7978 handle_clean ($makefile);
7979 handle_factored_dependencies;
7981 # Comes last, because all the above procedures may have
7982 # defined or overridden variables.
7983 $output_vars .= output_variables;
7985 check_typos;
7987 if ($exit_code != 0)
7988 {
7989 verb "not writing $makefile_in because of earlier errors";
7990 return;
7991 }
7993 my $am_relative_dir = dirname ($makefile_am);
7994 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
7996 # We make sure that 'all:' is the first target.
7997 my $output =
7998 "$output_vars$output_all$output_header$output_rules$output_trailer";
8000 # Decide whether we must update the output file or not.
8001 # We have to update in the following situations.
8002 # * $force_generation is set.
8003 # * any of the output dependencies is younger than the output
8004 # * the contents of the output is different (this can happen
8005 # if the project has been populated with a file listed in
8006 # @common_files since the last run).
8007 # Output's dependencies are split in two sets:
8008 # * dependencies which are also configure dependencies
8009 # These do not change between each Makefile.am
8010 # * other dependencies, specific to the Makefile.am being processed
8011 # (such as the Makefile.am itself, or any Makefile fragment
8012 # it includes).
8013 my $timestamp = mtime $makefile_in;
8014 if (! $force_generation
8015 && $configure_deps_greatest_timestamp < $timestamp
8016 && $output_deps_greatest_timestamp < $timestamp
8017 && $output eq contents ($makefile_in))
8018 {
8019 verb "$makefile_in unchanged";
8020 # No need to update.
8021 return;
8022 }
8024 if (-e $makefile_in)
8025 {
8026 unlink ($makefile_in)
8027 or fatal "cannot remove $makefile_in: $!";
8028 }
8030 my $gm_file = new Automake::XFile "> $makefile_in";
8031 verb "creating $makefile_in";
8032 print $gm_file $output;
8033 }
8036 ################################################################
8039 # Helper function for usage().
8040 sub print_autodist_files
8041 {
8042 my @lcomm = uniq (sort @_);
8044 my @four;
8045 format USAGE_FORMAT =
8046 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8047 $four[0], $four[1], $four[2], $four[3]
8048 .
8049 local $~ = "USAGE_FORMAT";
8051 my $cols = 4;
8052 my $rows = int(@lcomm / $cols);
8053 my $rest = @lcomm % $cols;
8055 if ($rest)
8056 {
8057 $rows++;
8058 }
8059 else
8060 {
8061 $rest = $cols;
8062 }
8064 for (my $y = 0; $y < $rows; $y++)
8065 {
8066 @four = ("", "", "", "");
8067 for (my $x = 0; $x < $cols; $x++)
8068 {
8069 last if $y + 1 == $rows && $x == $rest;
8071 my $idx = (($x > $rest)
8072 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8073 : ($rows * $x));
8075 $idx += $y;
8076 $four[$x] = $lcomm[$idx];
8077 }
8078 write;
8079 }
8080 }
8083 sub usage ()
8084 {
8085 print "Usage: $0 [OPTION]... [Makefile]...
8087 Generate Makefile.in for configure from Makefile.am.
8089 Operation modes:
8090 --help print this help, then exit
8091 --version print version number, then exit
8092 -v, --verbose verbosely list files processed
8093 --no-force only update Makefile.in's that are out of date
8094 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8096 Dependency tracking:
8097 -i, --ignore-deps disable dependency tracking code
8098 --include-deps enable dependency tracking code
8100 Flavors:
8101 --foreign set strictness to foreign
8102 --gnits set strictness to gnits
8103 --gnu set strictness to gnu
8105 Library files:
8106 -a, --add-missing add missing standard files to package
8107 --libdir=DIR set directory storing library files
8108 --print-libdir print directory storing library files
8109 -c, --copy with -a, copy missing files (default is symlink)
8110 -f, --force-missing force update of standard files
8112 ";
8113 Automake::ChannelDefs::usage;
8115 print "\nFiles automatically distributed if found " .
8116 "(always):\n";
8117 print_autodist_files @common_files;
8118 print "\nFiles automatically distributed if found " .
8119 "(under certain conditions):\n";
8120 print_autodist_files @common_sometimes;
8122 print '
8123 Report bugs to <@PACKAGE_BUGREPORT@>.
8124 GNU Automake home page: <@PACKAGE_URL@>.
8125 General help using GNU software: <https://www.gnu.org/gethelp/>.
8126 ';
8128 # --help always returns 0 per GNU standards.
8129 exit 0;
8130 }
8133 sub version ()
8134 {
8135 print <<EOF;
8136 automake (GNU $PACKAGE) $VERSION
8137 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8138 License GPLv2+: GNU GPL version 2 or later <https://gnu.org/licenses/gpl-2.0.html>
8139 This is free software: you are free to change and redistribute it.
8140 There is NO WARRANTY, to the extent permitted by law.
8142 Written by Tom Tromey <tromey\@redhat.com>
8143 and Alexandre Duret-Lutz <adl\@gnu.org>.
8144 EOF
8145 # --version always returns 0 per GNU standards.
8146 exit 0;
8147 }
8149 ################################################################
8151 # Parse command line.
8152 sub parse_arguments ()
8153 {
8154 my $strict = 'gnu';
8155 my $ignore_deps = 0;
8156 my @warnings = ();
8158 my %cli_options =
8159 (
8160 'version' => \&version,
8161 'help' => \&usage,
8162 'libdir=s' => \$libdir,
8163 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8164 'gnu' => sub { $strict = 'gnu'; },
8165 'gnits' => sub { $strict = 'gnits'; },
8166 'foreign' => sub { $strict = 'foreign'; },
8167 'include-deps' => sub { $ignore_deps = 0; },
8168 'i|ignore-deps' => sub { $ignore_deps = 1; },
8169 'no-force' => sub { $force_generation = 0; },
8170 'f|force-missing' => \$force_missing,
8171 'a|add-missing' => \$add_missing,
8172 'c|copy' => \$copy_missing,
8173 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8174 'W|warnings=s' => \@warnings,
8175 );
8177 use Automake::Getopt ();
8178 Automake::Getopt::parse_options %cli_options;
8180 set_strictness ($strict);
8181 my $cli_where = new Automake::Location;
8182 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8183 for my $warning (@warnings)
8184 {
8185 parse_warnings ('-W', $warning);
8186 }
8188 return unless @ARGV;
8190 my $errspec = 0;
8191 foreach my $arg (@ARGV)
8192 {
8193 fatal ("empty argument\nTry '$0 --help' for more information")
8194 if ($arg eq '');
8196 # Handle $local:$input syntax.
8197 my ($local, @rest) = split (/:/, $arg);
8198 @rest = ("$local.in",) unless @rest;
8199 my $input = locate_am @rest;
8200 if ($input)
8201 {
8202 push @input_files, $input;
8203 $output_files{$input} = join (':', ($local, @rest));
8204 }
8205 else
8206 {
8207 error "no Automake input file found for '$arg'";
8208 $errspec = 1;
8209 }
8210 }
8211 fatal "no input file found among supplied arguments"
8212 if $errspec && ! @input_files;
8213 }
8216 # handle_makefile ($MAKEFILE)
8217 # ---------------------------
8218 sub handle_makefile
8219 {
8220 my ($file) = @_;
8221 ($am_file = $file) =~ s/\.in$//;
8222 if (! -f ($am_file . '.am'))
8223 {
8224 error "'$am_file.am' does not exist";
8225 }
8226 else
8227 {
8228 # Any warning setting now local to this Makefile.am.
8229 dup_channel_setup;
8231 generate_makefile ($am_file . '.am', $file);
8233 # Back out any warning setting.
8234 drop_channel_setup;
8235 }
8236 }
8238 # Deal with all makefiles, without threads.
8239 sub handle_makefiles_serial ()
8240 {
8241 foreach my $file (@input_files)
8242 {
8243 handle_makefile ($file);
8244 }
8245 }
8247 # Logic for deciding how many worker threads to use.
8248 sub get_number_of_threads ()
8249 {
8250 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8252 $nthreads = 0
8253 unless $nthreads =~ /^[0-9]+$/;
8255 # It doesn't make sense to use more threads than makefiles,
8256 my $max_threads = @input_files;
8258 if ($nthreads > $max_threads)
8259 {
8260 $nthreads = $max_threads;
8261 }
8262 return $nthreads;
8263 }
8265 # handle_makefiles_threaded ($NTHREADS)
8266 # -------------------------------------
8267 # Deal with all makefiles, using threads. The general strategy is to
8268 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8269 # worker threads push back everything that needs serialization:
8270 # * warning and (normal) error messages, for stable stderr output
8271 # order and content (avoiding duplicates, for example),
8272 # * races when installing aux files (and respective messages),
8273 # * races when collecting aux files for distribution.
8274 #
8275 # The latter requires that the makefile that deals with the aux dir
8276 # files be handled last, done by the master thread.
8277 sub handle_makefiles_threaded
8278 {
8279 my ($nthreads) = @_;
8281 # The file queue distributes all makefiles, the message queues
8282 # collect all serializations needed for respective files.
8283 my $file_queue = Thread::Queue->new;
8284 my %msg_queues;
8285 foreach my $file (@input_files)
8286 {
8287 $msg_queues{$file} = Thread::Queue->new;
8288 }
8290 verb "spawning $nthreads worker threads";
8291 my @threads = (1 .. $nthreads);
8292 foreach my $t (@threads)
8293 {
8294 $t = threads->new (sub
8295 {
8296 while (my $file = $file_queue->dequeue)
8297 {
8298 verb "handling $file";
8299 my $queue = $msg_queues{$file};
8300 setup_channel_queue ($queue, QUEUE_MESSAGE);
8301 $required_conf_file_queue = $queue;
8302 handle_makefile ($file);
8303 $queue->enqueue (undef);
8304 setup_channel_queue (undef, undef);
8305 $required_conf_file_queue = undef;
8306 }
8307 return $exit_code;
8308 });
8309 }
8311 # Queue all makefiles.
8312 verb "queuing " . @input_files . " input files";
8313 $file_queue->enqueue (@input_files, (undef) x @threads);
8315 # Collect and process serializations.
8316 foreach my $file (@input_files)
8317 {
8318 verb "dequeuing messages for " . $file;
8319 reset_local_duplicates ();
8320 my $queue = $msg_queues{$file};
8321 while (my $key = $queue->dequeue)
8322 {
8323 if ($key eq QUEUE_MESSAGE)
8324 {
8325 pop_channel_queue ($queue);
8326 }
8327 elsif ($key eq QUEUE_CONF_FILE)
8328 {
8329 require_queued_file_check_or_copy ($queue);
8330 }
8331 else
8332 {
8333 prog_error "unexpected key $key";
8334 }
8335 }
8336 }
8338 foreach my $t (@threads)
8339 {
8340 my @exit_thread = $t->join;
8341 $exit_code = $exit_thread[0]
8342 if ($exit_thread[0] > $exit_code);
8343 }
8344 }
8346 ################################################################
8348 # Parse the WARNINGS environment variable.
8349 parse_WARNINGS;
8351 # Parse command line.
8352 parse_arguments;
8354 $configure_ac = require_configure_ac;
8356 # Do configure.ac scan only once.
8357 scan_autoconf_files;
8359 if (! @input_files)
8360 {
8361 my $msg = '';
8362 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8363 if -f 'Makefile.am';
8364 fatal ("no 'Makefile.am' found for any configure output$msg");
8365 }
8367 my $nthreads = get_number_of_threads ();
8369 if ($perl_threads && $nthreads >= 1)
8370 {
8371 handle_makefiles_threaded ($nthreads);
8372 }
8373 else
8374 {
8375 handle_makefiles_serial ();
8376 }
8378 exit $exit_code;