| blob | 1063304d25d351a0f2e3e1228f66edbcb03534ed |
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) 1994-2013 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 <http://www.gnu.org/licenses/>.
24 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
25 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
26 # Alexandre Duret-Lutz <adl@gnu.org>.
28 package Language;
30 BEGIN
31 {
32 @Automake::perl_libdirs = ('@datadir@/@PACKAGE@-@APIVERSION@')
33 unless @Automake::perl_libdirs;
34 unshift @INC, @Automake::perl_libdirs;
36 # Override SHELL. This is required on DJGPP so that system() uses
37 # bash, not COMMAND.COM which doesn't quote arguments properly.
38 # Other systems aren't expected to use $SHELL when Automake
39 # runs, but it should be safe to drop the "if DJGPP" guard if
40 # it turns up other systems need the same thing. After all,
41 # if SHELL is used, ./configure's SHELL is always better than
42 # the user's SHELL (which may be something like tcsh).
43 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
44 }
46 use Class::Struct ();
47 Class::Struct::struct (
48 # Short name of the language (c, f77...).
49 'name' => "\$",
50 # Nice name of the language (C, Fortran 77...).
51 'Name' => "\$",
53 # List of configure variables which must be defined.
54 'config_vars' => '@',
56 # 'pure' is '1' or ''. A 'pure' language is one where, if
57 # all the files in a directory are of that language, then we
58 # do not require the C compiler or any code to call it.
59 'pure' => "\$",
61 'autodep' => "\$",
63 # Name of the compiling variable (COMPILE).
64 'compiler' => "\$",
65 # Content of the compiling variable.
66 'compile' => "\$",
67 # Flag to require compilation without linking (-c).
68 'compile_flag' => "\$",
69 'extensions' => '@',
70 # A subroutine to compute a list of possible extensions of
71 # the product given the input extensions.
72 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
73 'output_extensions' => "\$",
74 # A list of flag variables used in 'compile'.
75 # (defaults to [])
76 'flags' => "@",
78 # Any tag to pass to libtool while compiling.
79 'libtool_tag' => "\$",
81 # The file to use when generating rules for this language.
82 # The default is 'depend2'.
83 'rule_file' => "\$",
85 # Name of the linking variable (LINK).
86 'linker' => "\$",
87 # Content of the linking variable.
88 'link' => "\$",
90 # Name of the compiler variable (CC).
91 'ccer' => "\$",
93 # Name of the linker variable (LD).
94 'lder' => "\$",
95 # Content of the linker variable ($(CC)).
96 'ld' => "\$",
98 # Flag to specify the output file (-o).
99 'output_flag' => "\$",
100 '_finish' => "\$",
102 # This is a subroutine which is called whenever we finally
103 # determine the context in which a source file will be
104 # compiled.
105 '_target_hook' => "\$",
107 # If TRUE, nodist_ sources will be compiled using specific rules
108 # (i.e. not inference rules). The default is FALSE.
109 'nodist_specific' => "\$");
112 sub finish ($)
113 {
114 my ($self) = @_;
115 if (defined $self->_finish)
116 {
117 &{$self->_finish} (@_);
118 }
119 }
121 sub target_hook ($$$$%)
122 {
123 my ($self) = @_;
124 if (defined $self->_target_hook)
125 {
126 &{$self->_target_hook} (@_);
127 }
128 }
130 package Automake;
132 use strict;
133 use Automake::Config;
134 BEGIN
135 {
136 if ($perl_threads)
137 {
138 require threads;
139 import threads;
140 require Thread::Queue;
141 import Thread::Queue;
142 }
143 }
144 use Automake::General;
145 use Automake::XFile;
146 use Automake::Channels;
147 use Automake::ChannelDefs;
148 use Automake::Configure_ac;
149 use Automake::FileUtils;
150 use Automake::Location;
151 use Automake::Condition qw/TRUE FALSE/;
152 use Automake::DisjConditions;
153 use Automake::Options;
154 use Automake::Variable;
155 use Automake::VarDef;
156 use Automake::Rule;
157 use Automake::RuleDef;
158 use Automake::Wrap 'makefile_wrap';
159 use File::Basename;
160 use File::Spec;
161 use Carp;
163 ## ----------- ##
164 ## Constants. ##
165 ## ----------- ##
167 # Some regular expressions. One reason to put them here is that it
168 # makes indentation work better in Emacs.
170 # Writing singled-quoted-$-terminated regexes is a pain because
171 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
172 # by a closing quote. Letting perl-mode think the quote is not closed
173 # leads to all sort of misindentations. On the other hand, defining
174 # regexes as double-quoted strings is far less readable. So usually
175 # we will write:
176 #
177 # $REGEX = '^regex_value' . "\$";
179 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
180 my $WHITE_PATTERN = '^\s*' . "\$";
181 my $COMMENT_PATTERN = '^#';
182 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
183 # A rule has three parts: a list of targets, a list of dependencies,
184 # and optionally actions.
185 my $RULE_PATTERN =
186 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
188 # Only recognize leading spaces, not leading tabs. If we recognize
189 # leading tabs here then we need to make the reader smarter, because
190 # otherwise it will think rules like 'foo=bar; \' are errors.
191 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
192 # This pattern recognizes a Gnits version id and sets $1 if the
193 # release is an alpha release. We also allow a suffix which can be
194 # used to extend the version number with a "fork" identifier.
195 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
197 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
198 my $ELSE_PATTERN =
199 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
200 my $ENDIF_PATTERN =
201 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
202 my $PATH_PATTERN = '(\w|[+/.-])+';
203 # This will pass through anything not of the prescribed form.
204 my $INCLUDE_PATTERN = ('^include\s+'
205 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
206 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
207 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
209 # Directories installed during 'install-exec' phase.
210 my $EXEC_DIR_PATTERN =
211 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
213 # Values for AC_CANONICAL_*
214 use constant AC_CANONICAL_BUILD => 1;
215 use constant AC_CANONICAL_HOST => 2;
216 use constant AC_CANONICAL_TARGET => 3;
218 # Values indicating when something should be cleaned.
219 use constant MOSTLY_CLEAN => 0;
220 use constant CLEAN => 1;
221 use constant DIST_CLEAN => 2;
222 use constant MAINTAINER_CLEAN => 3;
224 # Libtool files.
225 my @libtool_files = qw(ltmain.sh config.guess config.sub);
226 # ltconfig appears here for compatibility with old versions of libtool.
227 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
229 # Commonly found files we look for and automatically include in
230 # DISTFILES.
231 my @common_files =
232 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
233 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
234 ar-lib compile config.guess config.rpath
235 config.sub depcomp install-sh libversion.in mdate-sh
236 missing mkinstalldirs py-compile texinfo.tex ylwrap),
237 @libtool_files, @libtool_sometimes);
239 # Commonly used files we auto-include, but only sometimes. This list
240 # is used for the --help output only.
241 my @common_sometimes =
242 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
243 configure.ac configure.in stamp-vti);
245 # Standard directories from the GNU Coding Standards, and additional
246 # pkg* directories from Automake. Stored in a hash for fast member check.
247 my %standard_prefix =
248 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
249 lib libexec lisp locale localstate man man1 man2
250 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
251 pkgdata pkginclude pkglib pkglibexec ps sbin
252 sharedstate sysconf));
254 # Copyright on generated Makefile.ins.
255 my $gen_copyright = "\
256 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
258 # This Makefile.in is free software; the Free Software Foundation
259 # gives unlimited permission to copy and/or distribute it,
260 # with or without modifications, as long as this notice is preserved.
262 # This program is distributed in the hope that it will be useful,
263 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
264 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
265 # PARTICULAR PURPOSE.
266 ";
268 # These constants are returned by the lang_*_rewrite functions.
269 # LANG_SUBDIR means that the resulting object file should be in a
270 # subdir if the source file is. In this case the file name cannot
271 # have '..' components.
272 use constant LANG_IGNORE => 0;
273 use constant LANG_PROCESS => 1;
274 use constant LANG_SUBDIR => 2;
276 # These are used when keeping track of whether an object can be built
277 # by two different paths.
278 use constant COMPILE_LIBTOOL => 1;
279 use constant COMPILE_ORDINARY => 2;
281 # We can't always associate a location to a variable or a rule,
282 # when it's defined by Automake. We use INTERNAL in this case.
283 use constant INTERNAL => new Automake::Location;
285 # Serialization keys for message queues.
286 use constant QUEUE_MESSAGE => "msg";
287 use constant QUEUE_CONF_FILE => "conf file";
288 use constant QUEUE_LOCATION => "location";
289 use constant QUEUE_STRING => "string";
291 ## ---------------------------------- ##
292 ## Variables related to the options. ##
293 ## ---------------------------------- ##
295 # TRUE if we should always generate Makefile.in.
296 my $force_generation = 1;
298 # From the Perl manual.
299 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
301 # TRUE if missing standard files should be installed.
302 my $add_missing = 0;
304 # TRUE if we should copy missing files; otherwise symlink if possible.
305 my $copy_missing = 0;
307 # TRUE if we should always update files that we know about.
308 my $force_missing = 0;
311 ## ---------------------------------------- ##
312 ## Variables filled during files scanning. ##
313 ## ---------------------------------------- ##
315 # Name of the configure.ac file.
316 my $configure_ac;
318 # Files found by scanning configure.ac for LIBOBJS.
319 my %libsources = ();
321 # Names used in AC_CONFIG_HEADER call.
322 my @config_headers = ();
324 # Names used in AC_CONFIG_LINKS call.
325 my @config_links = ();
327 # List of Makefile.am's to process, and their corresponding outputs.
328 my @input_files = ();
329 my %output_files = ();
331 # Complete list of Makefile.am's that exist.
332 my @configure_input_files = ();
334 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
335 # and their outputs.
336 my @other_input_files = ();
337 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
338 # The keys are the files created by these macros.
339 my %ac_config_files_location = ();
340 # The condition under which AC_CONFIG_FOOS appears.
341 my %ac_config_files_condition = ();
343 # Directory to search for configure-required files. This
344 # will be computed by &locate_aux_dir and can be set using
345 # AC_CONFIG_AUX_DIR in configure.ac.
346 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
347 my $config_aux_dir = '';
348 my $config_aux_dir_set_in_configure_ac = 0;
349 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
350 # in Makefiles.
351 my $am_config_aux_dir = '';
353 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
354 # in configure.ac.
355 my $config_libobj_dir = '';
357 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
358 my $seen_gettext = 0;
359 # Whether AM_GNU_GETTEXT([external]) is used.
360 my $seen_gettext_external = 0;
361 # Where AM_GNU_GETTEXT appears.
362 my $ac_gettext_location;
363 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
364 my $seen_gettext_intl = 0;
366 # The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
367 my @extra_recursive_targets = ();
369 # Lists of tags supported by Libtool.
370 my %libtool_tags = ();
371 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
372 # uses AC_REQUIRE_AUX_FILE.
373 my $libtool_new_api = 0;
375 # Most important AC_CANONICAL_* macro seen so far.
376 my $seen_canonical = 0;
378 # Where AM_MAINTAINER_MODE appears.
379 my $seen_maint_mode;
381 # Actual version we've seen.
382 my $package_version = '';
384 # Where version is defined.
385 my $package_version_location;
387 # TRUE if we've seen AM_PROG_AR
388 my $seen_ar = 0;
390 # TRUE if we've seen AM_PROG_CC_C_O
391 my $seen_cc_c_o = 0;
393 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
394 my %required_aux_file = ();
396 # Where AM_INIT_AUTOMAKE is called;
397 my $seen_init_automake = 0;
399 # TRUE if we've seen AM_AUTOMAKE_VERSION.
400 my $seen_automake_version = 0;
402 # Hash table of discovered configure substitutions. Keys are names,
403 # values are 'FILE:LINE' strings which are used by error message
404 # generation.
405 my %configure_vars = ();
407 # Ignored configure substitutions (i.e., variables not to be output in
408 # Makefile.in)
409 my %ignored_configure_vars = ();
411 # Files included by $configure_ac.
412 my @configure_deps = ();
414 # Greatest timestamp of configure's dependencies.
415 my $configure_deps_greatest_timestamp = 0;
417 # Hash table of AM_CONDITIONAL variables seen in configure.
418 my %configure_cond = ();
420 # This maps extensions onto language names.
421 my %extension_map = ();
423 # List of the DIST_COMMON files we discovered while reading
424 # configure.ac.
425 my $configure_dist_common = '';
427 # This maps languages names onto objects.
428 my %languages = ();
429 # Maps each linker variable onto a language object.
430 my %link_languages = ();
432 # maps extensions to needed source flags.
433 my %sourceflags = ();
435 # List of targets we must always output.
436 # FIXME: Complete, and remove falsely required targets.
437 my %required_targets =
438 (
439 'all' => 1,
440 'dvi' => 1,
441 'pdf' => 1,
442 'ps' => 1,
443 'info' => 1,
444 'install-info' => 1,
445 'install' => 1,
446 'install-data' => 1,
447 'install-exec' => 1,
448 'uninstall' => 1,
450 # FIXME: Not required, temporary hacks.
451 # Well, actually they are sort of required: the -recursive
452 # targets will run them anyway...
453 'html-am' => 1,
454 'dvi-am' => 1,
455 'pdf-am' => 1,
456 'ps-am' => 1,
457 'info-am' => 1,
458 'install-data-am' => 1,
459 'install-exec-am' => 1,
460 'install-html-am' => 1,
461 'install-dvi-am' => 1,
462 'install-pdf-am' => 1,
463 'install-ps-am' => 1,
464 'install-info-am' => 1,
465 'installcheck-am' => 1,
466 'uninstall-am' => 1,
467 'tags-am' => 1,
468 'ctags-am' => 1,
469 'cscopelist-am' => 1,
470 'install-man' => 1,
471 );
473 # Queue to push require_conf_file requirements to.
474 my $required_conf_file_queue;
476 # The name of the Makefile currently being processed.
477 my $am_file = 'BUG';
479 ################################################################
481 ## ------------------------------------------ ##
482 ## Variables reset by &initialize_per_input. ##
483 ## ------------------------------------------ ##
485 # Relative dir of the output makefile.
486 my $relative_dir;
488 # Greatest timestamp of the output's dependencies (excluding
489 # configure's dependencies).
490 my $output_deps_greatest_timestamp;
492 # These variables are used when generating each Makefile.in.
493 # They hold the Makefile.in until it is ready to be printed.
494 my $output_vars;
495 my $output_all;
496 my $output_header;
497 my $output_rules;
498 my $output_trailer;
500 # This is the conditional stack, updated on if/else/endif, and
501 # used to build Condition objects.
502 my @cond_stack;
504 # This holds the set of included files.
505 my @include_stack;
507 # List of dependencies for the obvious targets.
508 my @all;
509 my @check;
510 my @check_tests;
512 # Keys in this hash table are files to delete. The associated
513 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
514 my %clean_files;
516 # Keys in this hash table are object files or other files in
517 # subdirectories which need to be removed. This only holds files
518 # which are created by compilations. The value in the hash indicates
519 # when the file should be removed.
520 my %compile_clean_files;
522 # Keys in this hash table are directories where we expect to build a
523 # libtool object. We use this information to decide what directories
524 # to delete.
525 my %libtool_clean_directories;
527 # Value of $(SOURCES), used by tags.am.
528 my @sources;
529 # Sources which go in the distribution.
530 my @dist_sources;
532 # This hash maps object file names onto their corresponding source
533 # file names. This is used to ensure that each object is created
534 # by a single source file.
535 my %object_map;
537 # This hash maps object file names onto an integer value representing
538 # whether this object has been built via ordinary compilation or
539 # libtool compilation (the COMPILE_* constants).
540 my %object_compilation_map;
543 # This keeps track of the directories for which we've already
544 # created dirstamp code. Keys are directories, values are stamp files.
545 # Several keys can share the same stamp files if they are equivalent
546 # (as are './/foo' and 'foo').
547 my %directory_map;
549 # All .P files.
550 my %dep_files;
552 # This is a list of all targets to run during "make dist".
553 my @dist_targets;
555 # Keep track of all programs declared in this Makefile, without
556 # $(EXEEXT). @substitutions@ are not listed.
557 my %known_programs;
558 my %known_libraries;
560 # This keeps track of which extensions we've seen (that we care
561 # about).
562 my %extension_seen;
564 # This is random scratch space for the language finish functions.
565 # Don't randomly overwrite it; examine other uses of keys first.
566 my %language_scratch;
568 # We keep track of which objects need special (per-executable)
569 # handling on a per-language basis.
570 my %lang_specific_files;
572 # This is set when 'handle_dist' has finished. Once this happens,
573 # we should no longer push on dist_common.
574 my $handle_dist_run;
576 # Used to store a set of linkers needed to generate the sources currently
577 # under consideration.
578 my %linkers_used;
580 # True if we need 'LINK' defined. This is a hack.
581 my $need_link;
583 # Does the generated Makefile have to build some compiled object
584 # (for binary programs, or plain or libtool libraries)?
585 my $must_handle_compiled_objects;
587 # Record each file processed by make_paragraphs.
588 my %transformed_files;
590 ################################################################
592 ## ---------------------------------------------- ##
593 ## Variables not reset by &initialize_per_input. ##
594 ## ---------------------------------------------- ##
596 # Cache each file processed by make_paragraphs.
597 # (This is different from %transformed_files because
598 # %transformed_files is reset for each file while %am_file_cache
599 # it global to the run.)
600 my %am_file_cache;
602 ################################################################
604 # var_SUFFIXES_trigger ($TYPE, $VALUE)
605 # ------------------------------------
606 # This is called by Automake::Variable::define() when SUFFIXES
607 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
608 # The work here needs to be performed as a side-effect of the
609 # macro_define() call because SUFFIXES definitions impact
610 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
611 # the input am file.
612 sub var_SUFFIXES_trigger ($$)
613 {
614 my ($type, $value) = @_;
615 accept_extensions (split (' ', $value));
616 }
617 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
619 ################################################################
621 ## --------------------------------- ##
622 ## Forward subroutine declarations. ##
623 ## --------------------------------- ##
624 sub register_language (%);
625 sub file_contents_internal ($$$%);
626 sub define_files_variable ($\@$$);
629 # &initialize_per_input ()
630 # ------------------------
631 # (Re)-Initialize per-Makefile.am variables.
632 sub initialize_per_input ()
633 {
634 reset_local_duplicates ();
636 $relative_dir = undef;
638 $output_deps_greatest_timestamp = 0;
640 $output_vars = '';
641 $output_all = '';
642 $output_header = '';
643 $output_rules = '';
644 $output_trailer = '';
646 Automake::Options::reset;
647 Automake::Variable::reset;
648 Automake::Rule::reset;
650 @cond_stack = ();
652 @include_stack = ();
654 @all = ();
655 @check = ();
656 @check_tests = ();
658 %clean_files = ();
659 %compile_clean_files = ();
661 # We always include '.'. This isn't strictly correct.
662 %libtool_clean_directories = ('.' => 1);
664 @sources = ();
665 @dist_sources = ();
667 %object_map = ();
668 %object_compilation_map = ();
670 %directory_map = ();
672 %dep_files = ();
674 @dist_targets = ();
676 %known_programs = ();
677 %known_libraries= ();
679 %extension_seen = ();
681 %language_scratch = ();
683 %lang_specific_files = ();
685 $handle_dist_run = 0;
687 $need_link = 0;
689 $must_handle_compiled_objects = 0;
691 %transformed_files = ();
692 }
695 ################################################################
697 # Initialize our list of languages that are internally supported.
699 # C.
700 register_language ('name' => 'c',
701 'Name' => 'C',
702 'config_vars' => ['CC'],
703 'autodep' => '',
704 'flags' => ['CFLAGS', 'CPPFLAGS'],
705 'ccer' => 'CC',
706 'compiler' => 'COMPILE',
707 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
708 'lder' => 'CCLD',
709 'ld' => '$(CC)',
710 'linker' => 'LINK',
711 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
712 'compile_flag' => '-c',
713 'libtool_tag' => 'CC',
714 'extensions' => ['.c']);
716 # C++.
717 register_language ('name' => 'cxx',
718 'Name' => 'C++',
719 'config_vars' => ['CXX'],
720 'linker' => 'CXXLINK',
721 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
722 'autodep' => 'CXX',
723 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
724 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
725 'ccer' => 'CXX',
726 'compiler' => 'CXXCOMPILE',
727 'compile_flag' => '-c',
728 'output_flag' => '-o',
729 'libtool_tag' => 'CXX',
730 'lder' => 'CXXLD',
731 'ld' => '$(CXX)',
732 'pure' => 1,
733 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
735 # Objective C.
736 register_language ('name' => 'objc',
737 'Name' => 'Objective C',
738 'config_vars' => ['OBJC'],
739 'linker' => 'OBJCLINK',
740 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
741 'autodep' => 'OBJC',
742 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
743 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
744 'ccer' => 'OBJC',
745 'compiler' => 'OBJCCOMPILE',
746 'compile_flag' => '-c',
747 'output_flag' => '-o',
748 'lder' => 'OBJCLD',
749 'ld' => '$(OBJC)',
750 'pure' => 1,
751 'extensions' => ['.m']);
753 # Objective C++.
754 register_language ('name' => 'objcxx',
755 'Name' => 'Objective C++',
756 'config_vars' => ['OBJCXX'],
757 'linker' => 'OBJCXXLINK',
758 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
759 'autodep' => 'OBJCXX',
760 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
761 'compile' => '$(OBJCXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS)',
762 'ccer' => 'OBJCXX',
763 'compiler' => 'OBJCXXCOMPILE',
764 'compile_flag' => '-c',
765 'output_flag' => '-o',
766 'lder' => 'OBJCXXLD',
767 'ld' => '$(OBJCXX)',
768 'pure' => 1,
769 'extensions' => ['.mm']);
771 # Unified Parallel C.
772 register_language ('name' => 'upc',
773 'Name' => 'Unified Parallel C',
774 'config_vars' => ['UPC'],
775 'linker' => 'UPCLINK',
776 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
777 'autodep' => 'UPC',
778 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
779 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
780 'ccer' => 'UPC',
781 'compiler' => 'UPCCOMPILE',
782 'compile_flag' => '-c',
783 'output_flag' => '-o',
784 'lder' => 'UPCLD',
785 'ld' => '$(UPC)',
786 'pure' => 1,
787 'extensions' => ['.upc']);
789 # Headers.
790 register_language ('name' => 'header',
791 'Name' => 'Header',
792 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
793 '.hpp', '.inc'],
794 # No output.
795 'output_extensions' => sub { return () },
796 # Nothing to do.
797 '_finish' => sub { });
799 # Vala
800 register_language ('name' => 'vala',
801 'Name' => 'Vala',
802 'config_vars' => ['VALAC'],
803 'flags' => [],
804 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
805 'ccer' => 'VALAC',
806 'compiler' => 'VALACOMPILE',
807 'extensions' => ['.vala'],
808 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
809 return ($ext,) },
810 'rule_file' => 'vala',
811 '_finish' => \&lang_vala_finish,
812 '_target_hook' => \&lang_vala_target_hook,
813 'nodist_specific' => 1);
815 # Yacc (C & C++).
816 register_language ('name' => 'yacc',
817 'Name' => 'Yacc',
818 'config_vars' => ['YACC'],
819 'flags' => ['YFLAGS'],
820 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
821 'ccer' => 'YACC',
822 'compiler' => 'YACCCOMPILE',
823 'extensions' => ['.y'],
824 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
825 return ($ext,) },
826 'rule_file' => 'yacc',
827 '_finish' => \&lang_yacc_finish,
828 '_target_hook' => \&lang_yacc_target_hook,
829 'nodist_specific' => 1);
830 register_language ('name' => 'yaccxx',
831 'Name' => 'Yacc (C++)',
832 'config_vars' => ['YACC'],
833 'rule_file' => 'yacc',
834 'flags' => ['YFLAGS'],
835 'ccer' => 'YACC',
836 'compiler' => 'YACCCOMPILE',
837 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
838 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
839 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
840 return ($ext,) },
841 '_finish' => \&lang_yacc_finish,
842 '_target_hook' => \&lang_yacc_target_hook,
843 'nodist_specific' => 1);
845 # Lex (C & C++).
846 register_language ('name' => 'lex',
847 'Name' => 'Lex',
848 'config_vars' => ['LEX'],
849 'rule_file' => 'lex',
850 'flags' => ['LFLAGS'],
851 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
852 'ccer' => 'LEX',
853 'compiler' => 'LEXCOMPILE',
854 'extensions' => ['.l'],
855 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
856 return ($ext,) },
857 '_finish' => \&lang_lex_finish,
858 '_target_hook' => \&lang_lex_target_hook,
859 'nodist_specific' => 1);
860 register_language ('name' => 'lexxx',
861 'Name' => 'Lex (C++)',
862 'config_vars' => ['LEX'],
863 'rule_file' => 'lex',
864 'flags' => ['LFLAGS'],
865 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
866 'ccer' => 'LEX',
867 'compiler' => 'LEXCOMPILE',
868 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
869 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
870 return ($ext,) },
871 '_finish' => \&lang_lex_finish,
872 '_target_hook' => \&lang_lex_target_hook,
873 'nodist_specific' => 1);
875 # Assembler.
876 register_language ('name' => 'asm',
877 'Name' => 'Assembler',
878 'config_vars' => ['CCAS', 'CCASFLAGS'],
880 'flags' => ['CCASFLAGS'],
881 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
882 # or anything else required. They can also set CCAS.
883 # Or simply use Preprocessed Assembler.
884 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
885 'ccer' => 'CCAS',
886 'compiler' => 'CCASCOMPILE',
887 'compile_flag' => '-c',
888 'output_flag' => '-o',
889 'extensions' => ['.s']);
891 # Preprocessed Assembler.
892 register_language ('name' => 'cppasm',
893 'Name' => 'Preprocessed Assembler',
894 'config_vars' => ['CCAS', 'CCASFLAGS'],
896 'autodep' => 'CCAS',
897 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
898 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
899 'ccer' => 'CPPAS',
900 'compiler' => 'CPPASCOMPILE',
901 'compile_flag' => '-c',
902 'output_flag' => '-o',
903 'extensions' => ['.S', '.sx']);
905 # Fortran 77
906 register_language ('name' => 'f77',
907 'Name' => 'Fortran 77',
908 'config_vars' => ['F77'],
909 'linker' => 'F77LINK',
910 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
911 'flags' => ['FFLAGS'],
912 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
913 'ccer' => 'F77',
914 'compiler' => 'F77COMPILE',
915 'compile_flag' => '-c',
916 'output_flag' => '-o',
917 'libtool_tag' => 'F77',
918 'lder' => 'F77LD',
919 'ld' => '$(F77)',
920 'pure' => 1,
921 'extensions' => ['.f', '.for']);
923 # Fortran
924 register_language ('name' => 'fc',
925 'Name' => 'Fortran',
926 'config_vars' => ['FC'],
927 'linker' => 'FCLINK',
928 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
929 'flags' => ['FCFLAGS'],
930 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
931 'ccer' => 'FC',
932 'compiler' => 'FCCOMPILE',
933 'compile_flag' => '-c',
934 'output_flag' => '-o',
935 'libtool_tag' => 'FC',
936 'lder' => 'FCLD',
937 'ld' => '$(FC)',
938 'pure' => 1,
939 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
941 # Preprocessed Fortran
942 register_language ('name' => 'ppfc',
943 'Name' => 'Preprocessed Fortran',
944 'config_vars' => ['FC'],
945 'linker' => 'FCLINK',
946 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
947 'lder' => 'FCLD',
948 'ld' => '$(FC)',
949 'flags' => ['FCFLAGS', 'CPPFLAGS'],
950 'ccer' => 'PPFC',
951 'compiler' => 'PPFCCOMPILE',
952 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
953 'compile_flag' => '-c',
954 'output_flag' => '-o',
955 'libtool_tag' => 'FC',
956 'pure' => 1,
957 'extensions' => ['.F90','.F95', '.F03', '.F08']);
959 # Preprocessed Fortran 77
960 #
961 # The current support for preprocessing Fortran 77 just involves
962 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
963 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
964 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
965 # for 'make' Version 3.76 Beta" (specifically, from info file
966 # '(make)Catalogue of Rules').
967 #
968 # A better approach would be to write an Autoconf test
969 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
970 # Fortran 77 compilers know how to do preprocessing. The Autoconf
971 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
972 # preprocessing capabilities, and then fall back on cpp (if cpp were
973 # available).
974 register_language ('name' => 'ppf77',
975 'Name' => 'Preprocessed Fortran 77',
976 'config_vars' => ['F77'],
977 'linker' => 'F77LINK',
978 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
979 'lder' => 'F77LD',
980 'ld' => '$(F77)',
981 'flags' => ['FFLAGS', 'CPPFLAGS'],
982 'ccer' => 'PPF77',
983 'compiler' => 'PPF77COMPILE',
984 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
985 'compile_flag' => '-c',
986 'output_flag' => '-o',
987 'libtool_tag' => 'F77',
988 'pure' => 1,
989 'extensions' => ['.F']);
991 # Ratfor.
992 register_language ('name' => 'ratfor',
993 'Name' => 'Ratfor',
994 'config_vars' => ['F77'],
995 'linker' => 'F77LINK',
996 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
997 'lder' => 'F77LD',
998 'ld' => '$(F77)',
999 'flags' => ['RFLAGS', 'FFLAGS'],
1000 # FIXME also FFLAGS.
1001 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1002 'ccer' => 'F77',
1003 'compiler' => 'RCOMPILE',
1004 'compile_flag' => '-c',
1005 'output_flag' => '-o',
1006 'libtool_tag' => 'F77',
1007 'pure' => 1,
1008 'extensions' => ['.r']);
1010 # Java via gcj.
1011 register_language ('name' => 'java',
1012 'Name' => 'Java',
1013 'config_vars' => ['GCJ'],
1014 'linker' => 'GCJLINK',
1015 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1016 'autodep' => 'GCJ',
1017 'flags' => ['GCJFLAGS'],
1018 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1019 'ccer' => 'GCJ',
1020 'compiler' => 'GCJCOMPILE',
1021 'compile_flag' => '-c',
1022 'output_flag' => '-o',
1023 'libtool_tag' => 'GCJ',
1024 'lder' => 'GCJLD',
1025 'ld' => '$(GCJ)',
1026 'pure' => 1,
1027 'extensions' => ['.java', '.class', '.zip', '.jar']);
1029 ################################################################
1031 # Error reporting functions.
1033 # err_am ($MESSAGE, [%OPTIONS])
1034 # -----------------------------
1035 # Uncategorized errors about the current Makefile.am.
1036 sub err_am ($;%)
1037 {
1038 msg_am ('error', @_);
1039 }
1041 # err_ac ($MESSAGE, [%OPTIONS])
1042 # -----------------------------
1043 # Uncategorized errors about configure.ac.
1044 sub err_ac ($;%)
1045 {
1046 msg_ac ('error', @_);
1047 }
1049 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1050 # ---------------------------------------
1051 # Messages about about the current Makefile.am.
1052 sub msg_am ($$;%)
1053 {
1054 my ($channel, $msg, %opts) = @_;
1055 msg $channel, "${am_file}.am", $msg, %opts;
1056 }
1058 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1059 # ---------------------------------------
1060 # Messages about about configure.ac.
1061 sub msg_ac ($$;%)
1062 {
1063 my ($channel, $msg, %opts) = @_;
1064 msg $channel, $configure_ac, $msg, %opts;
1065 }
1067 ################################################################
1069 # subst ($TEXT)
1070 # -------------
1071 # Return a configure-style substitution using the indicated text.
1072 # We do this to avoid having the substitutions directly in automake.in;
1073 # when we do that they are sometimes removed and this causes confusion
1074 # and bugs.
1075 sub subst ($)
1076 {
1077 my ($text) = @_;
1078 return '@' . $text . '@';
1079 }
1081 ################################################################
1084 # $BACKPATH
1085 # &backname ($RELDIR)
1086 # --------------------
1087 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1088 # For instance 'src/foo' => '../..'.
1089 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1090 sub backname ($)
1091 {
1092 my ($file) = @_;
1093 my @res;
1094 foreach (split (/\//, $file))
1095 {
1096 next if $_ eq '.' || $_ eq '';
1097 if ($_ eq '..')
1098 {
1099 pop @res
1100 or prog_error ("trying to reverse path '$file' pointing outside tree");
1101 }
1102 else
1103 {
1104 push (@res, '..');
1105 }
1106 }
1107 return join ('/', @res) || '.';
1108 }
1110 ################################################################
1112 # Silent rules handling functions.
1114 # verbose_var (NAME)
1115 # ------------------
1116 # The public variable stem used to implement silent rules.
1117 sub verbose_var ($)
1118 {
1119 my ($name) = @_;
1120 return 'AM_V_' . $name;
1121 }
1123 # verbose_private_var (NAME)
1124 # --------------------------
1125 # The naming policy for the private variables for silent rules.
1126 sub verbose_private_var ($)
1127 {
1128 my ($name) = @_;
1129 return 'am__v_' . $name;
1130 }
1132 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1133 # ----------------------------------------------------------
1134 # For silent rules, setup VAR and dispatcher, to expand to
1135 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
1136 # empty) if not.
1137 sub define_verbose_var ($$;$)
1138 {
1139 my ($name, $silent_val, $verbose_val) = @_;
1140 $verbose_val = '' unless defined $verbose_val;
1141 my $var = verbose_var ($name);
1142 my $pvar = verbose_private_var ($name);
1143 my $silent_var = $pvar . '_0';
1144 my $verbose_var = $pvar . '_1';
1145 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1146 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1147 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1148 # See AM_SILENT_RULES in m4/silent.m4.
1149 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1150 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1151 INTERNAL);
1152 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1153 $silent_val, '', INTERNAL, VAR_ASIS)
1154 if (! vardef ($silent_var, TRUE));
1155 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1156 $verbose_val, '', INTERNAL, VAR_ASIS)
1157 if (! vardef ($verbose_var, TRUE));
1158 }
1160 # Above should not be needed in the general automake code.
1162 # verbose_flag (NAME)
1163 # -------------------
1164 # Contents of %VERBOSE%: variable to expand before rule command.
1165 sub verbose_flag ($)
1166 {
1167 my ($name) = @_;
1168 return '$(' . verbose_var ($name) . ')';
1169 }
1171 sub verbose_nodep_flag ($)
1172 {
1173 my ($name) = @_;
1174 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1175 }
1177 # silent_flag
1178 # -----------
1179 # Contents of %SILENT%: variable to expand to '@' when silent.
1180 sub silent_flag ()
1181 {
1182 return verbose_flag ('at');
1183 }
1185 # define_verbose_tagvar (NAME)
1186 # ----------------------------
1187 # Engage the needed silent rules machinery for tag NAME.
1188 sub define_verbose_tagvar ($)
1189 {
1190 my ($name) = @_;
1191 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1192 }
1194 # define_verbose_texinfo
1195 # ----------------------
1196 # Engage the needed silent rules machinery for assorted texinfo commands.
1197 sub define_verbose_texinfo ()
1198 {
1199 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1200 foreach my $tag (@tagvars)
1201 {
1202 define_verbose_tagvar($tag);
1203 }
1204 define_verbose_var('texinfo', '-q');
1205 define_verbose_var('texidevnull', '> /dev/null');
1206 }
1208 # define_verbose_libtool
1209 # ----------------------
1210 # Engage the needed silent rules machinery for 'libtool --silent'.
1211 sub define_verbose_libtool ()
1212 {
1213 define_verbose_var ('lt', '--silent');
1214 return verbose_flag ('lt');
1215 }
1217 sub handle_silent ()
1218 {
1219 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1220 # used in make recipes to determine whether we are being run in
1221 # silent mode or not. The choice of the name derives from the LISP
1222 # convention of appending the letter 'P' to denote a predicate (see
1223 # also "the '-P' convention" in the Jargon File); we do so for lack
1224 # of a better convention.
1225 define_verbose_var ('P', 'false', ':');
1226 # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
1227 define_verbose_tagvar ('GEN');
1228 define_verbose_var ('at', '@');
1229 }
1232 ################################################################
1235 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1236 sub handle_options
1237 {
1238 my $var = var ('AUTOMAKE_OPTIONS');
1239 if ($var)
1240 {
1241 if ($var->has_conditional_contents)
1242 {
1243 msg_var ('unsupported', $var,
1244 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1245 }
1246 my @options = map { { option => $_->[1], where => $_->[0] } }
1247 $var->value_as_list_recursive (cond_filter => TRUE,
1248 location => 1);
1249 return 1 if process_option_list (@options);
1250 }
1252 if ($strictness == GNITS)
1253 {
1254 set_option ('readme-alpha', INTERNAL);
1255 set_option ('std-options', INTERNAL);
1256 set_option ('check-news', INTERNAL);
1257 }
1259 return 0;
1260 }
1262 # shadow_unconditionally ($varname, $where)
1263 # -----------------------------------------
1264 # Return a $(variable) that contains all possible values
1265 # $varname can take.
1266 # If the VAR wasn't defined conditionally, return $(VAR).
1267 # Otherwise we create an am__VAR_DIST variable which contains
1268 # all possible values, and return $(am__VAR_DIST).
1269 sub shadow_unconditionally ($$)
1270 {
1271 my ($varname, $where) = @_;
1272 my $var = var $varname;
1273 if ($var->has_conditional_contents)
1274 {
1275 $varname = "am__${varname}_DIST";
1276 my @files = uniq ($var->value_as_list_recursive);
1277 define_pretty_variable ($varname, TRUE, $where, @files);
1278 }
1279 return "\$($varname)"
1280 }
1282 # check_user_variables (@LIST)
1283 # ----------------------------
1284 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1285 # otherwise.
1286 sub check_user_variables (@)
1287 {
1288 my @dont_override = @_;
1289 foreach my $flag (@dont_override)
1290 {
1291 my $var = var $flag;
1292 if ($var)
1293 {
1294 for my $cond ($var->conditions->conds)
1295 {
1296 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1297 {
1298 msg_cond_var ('gnu', $cond, $flag,
1299 "'$flag' is a user variable, "
1300 . "you should not override it;\n"
1301 . "use 'AM_$flag' instead");
1302 }
1303 }
1304 }
1305 }
1306 }
1308 # Call finish function for each language that was used.
1309 sub handle_languages
1310 {
1311 if (! option 'no-dependencies')
1312 {
1313 # Include auto-dep code. Don't include it if DEP_FILES would
1314 # be empty.
1315 if (keys %extension_seen && keys %dep_files)
1316 {
1317 # Set location of depcomp.
1318 &define_variable ('depcomp',
1319 "\$(SHELL) $am_config_aux_dir/depcomp",
1320 INTERNAL);
1321 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1323 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1325 my @deplist = sort keys %dep_files;
1326 # Generate each 'include' individually. Irix 6 make will
1327 # not properly include several files resulting from a
1328 # variable expansion; generating many separate includes
1329 # seems safest.
1330 $output_rules .= "\n";
1331 foreach my $iter (@deplist)
1332 {
1333 $output_rules .= (subst ('AMDEP_TRUE')
1334 . subst ('am__include')
1335 . ' '
1336 . subst ('am__quote')
1337 . $iter
1338 . subst ('am__quote')
1339 . "\n");
1340 }
1342 # Compute the set of directories to remove in distclean-depend.
1343 my @depdirs = uniq (map { dirname ($_) } @deplist);
1344 $output_rules .= &file_contents ('depend',
1345 new Automake::Location,
1346 DEPDIRS => "@depdirs");
1347 }
1348 }
1349 else
1350 {
1351 &define_variable ('depcomp', '', INTERNAL);
1352 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1353 }
1355 my %done;
1357 # Is the C linker needed?
1358 my $needs_c = 0;
1359 foreach my $ext (sort keys %extension_seen)
1360 {
1361 next unless $extension_map{$ext};
1363 my $lang = $languages{$extension_map{$ext}};
1365 my $rule_file = $lang->rule_file || 'depend2';
1367 # Get information on $LANG.
1368 my $pfx = $lang->autodep;
1369 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1371 my ($AMDEP, $FASTDEP) =
1372 (option 'no-dependencies' || $lang->autodep eq 'no')
1373 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1375 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1376 my $verbose_nodep = ($AMDEP eq 'FALSE')
1377 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1378 my $silent = silent_flag ();
1380 my %transform = ('EXT' => $ext,
1381 'PFX' => $pfx,
1382 'FPFX' => $fpfx,
1383 'AMDEP' => $AMDEP,
1384 'FASTDEP' => $FASTDEP,
1385 '-c' => $lang->compile_flag || '',
1386 # These are not used, but they need to be defined
1387 # so &transform do not complain.
1388 SUBDIROBJ => 0,
1389 'DERIVED-EXT' => 'BUG',
1390 DIST_SOURCE => 1,
1391 VERBOSE => $verbose,
1392 'VERBOSE-NODEP' => $verbose_nodep,
1393 SILENT => $silent,
1394 );
1396 # Generate the appropriate rules for this extension.
1397 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1398 || defined $lang->compile)
1399 {
1400 # Some C compilers don't support -c -o. Use it only if really
1401 # needed.
1402 my $output_flag = $lang->output_flag || '';
1403 $output_flag = '-o'
1404 if (! $output_flag
1405 && $lang->name eq 'c'
1406 && option 'subdir-objects');
1408 # Compute a possible derived extension.
1409 # This is not used by depend2.am.
1410 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1412 # When we output an inference rule like '.c.o:' we
1413 # have two cases to consider: either subdir-objects
1414 # is used, or it is not.
1415 #
1416 # In the latter case the rule is used to build objects
1417 # in the current directory, and dependencies always
1418 # go into './$(DEPDIR)/'. We can hard-code this value.
1419 #
1420 # In the former case the rule can be used to build
1421 # objects in sub-directories too. Dependencies should
1422 # go into the appropriate sub-directories, e.g.,
1423 # 'sub/$(DEPDIR)/'. The value of this directory
1424 # needs to be computed on-the-fly.
1425 #
1426 # DEPBASE holds the name of this directory, plus the
1427 # basename part of the object file (extensions Po, TPo,
1428 # Plo, TPlo will be added later as appropriate). It is
1429 # either hardcoded, or a shell variable ('$depbase') that
1430 # will be computed by the rule.
1431 my $depbase =
1432 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1433 $output_rules .=
1434 file_contents ($rule_file,
1435 new Automake::Location,
1436 %transform,
1437 GENERIC => 1,
1439 'DERIVED-EXT' => $der_ext,
1441 DEPBASE => $depbase,
1442 BASE => '$*',
1443 SOURCE => '$<',
1444 SOURCEFLAG => $sourceflags{$ext} || '',
1445 OBJ => '$@',
1446 OBJOBJ => '$@',
1447 LTOBJ => '$@',
1449 COMPILE => '$(' . $lang->compiler . ')',
1450 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1451 -o => $output_flag,
1452 SUBDIROBJ => !! option 'subdir-objects');
1453 }
1455 # Now include code for each specially handled object with this
1456 # language.
1457 my %seen_files = ();
1458 foreach my $file (@{$lang_specific_files{$lang->name}})
1459 {
1460 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1462 # We might see a given object twice, for instance if it is
1463 # used under different conditions.
1464 next if defined $seen_files{$obj};
1465 $seen_files{$obj} = 1;
1467 prog_error ("found " . $lang->name .
1468 " in handle_languages, but compiler not defined")
1469 unless defined $lang->compile;
1471 my $obj_compile = $lang->compile;
1473 # Rewrite each occurrence of 'AM_$flag' in the compile
1474 # rule into '${derived}_$flag' if it exists.
1475 for my $flag (@{$lang->flags})
1476 {
1477 my $val = "${derived}_$flag";
1478 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1479 if set_seen ($val);
1480 }
1482 my $libtool_tag = '';
1483 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1484 {
1485 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1486 }
1488 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1489 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1491 my $ltverbose = define_verbose_libtool ();
1492 my $obj_ltcompile =
1493 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1494 . "--mode=compile $obj_compile";
1496 # We _need_ '-o' for per object rules.
1497 my $output_flag = $lang->output_flag || '-o';
1499 my $depbase = dirname ($obj);
1500 $depbase = ''
1501 if $depbase eq '.';
1502 $depbase .= '/'
1503 unless $depbase eq '';
1504 $depbase .= '$(DEPDIR)/' . basename ($obj);
1506 $output_rules .=
1507 file_contents ($rule_file,
1508 new Automake::Location,
1509 %transform,
1510 GENERIC => 0,
1512 DEPBASE => $depbase,
1513 BASE => $obj,
1514 SOURCE => $source,
1515 SOURCEFLAG => $sourceflags{$srcext} || '',
1516 # Use $myext and not '.o' here, in case
1517 # we are actually building a new source
1518 # file -- e.g. via yacc.
1519 OBJ => "$obj$myext",
1520 OBJOBJ => "$obj.obj",
1521 LTOBJ => "$obj.lo",
1523 VERBOSE => $verbose,
1524 'VERBOSE-NODEP' => $verbose_nodep,
1525 SILENT => $silent,
1526 COMPILE => $obj_compile,
1527 LTCOMPILE => $obj_ltcompile,
1528 -o => $output_flag,
1529 %file_transform);
1530 }
1532 # The rest of the loop is done once per language.
1533 next if defined $done{$lang};
1534 $done{$lang} = 1;
1536 # Load the language dependent Makefile chunks.
1537 my %lang = map { uc ($_) => 0 } keys %languages;
1538 $lang{uc ($lang->name)} = 1;
1539 $output_rules .= file_contents ('lang-compile',
1540 new Automake::Location,
1541 %transform, %lang);
1543 # If the source to a program consists entirely of code from a
1544 # 'pure' language, for instance C++ or Fortran 77, then we
1545 # don't need the C compiler code. However if we run into
1546 # something unusual then we do generate the C code. There are
1547 # probably corner cases here that do not work properly.
1548 # People linking Java code to Fortran code deserve pain.
1549 $needs_c ||= ! $lang->pure;
1551 define_compiler_variable ($lang)
1552 if ($lang->compile);
1554 define_linker_variable ($lang)
1555 if ($lang->link);
1557 require_variables ("$am_file.am", $lang->Name . " source seen",
1558 TRUE, @{$lang->config_vars});
1560 # Call the finisher.
1561 $lang->finish;
1563 # Flags listed in '->flags' are user variables (per GNU Standards),
1564 # they should not be overridden in the Makefile...
1565 my @dont_override = @{$lang->flags};
1566 # ... and so is LDFLAGS.
1567 push @dont_override, 'LDFLAGS' if $lang->link;
1569 check_user_variables @dont_override;
1570 }
1572 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1573 # suffix rule was learned), don't bother with the C stuff. But if
1574 # anything else creeps in, then use it.
1575 $needs_c = 1
1576 if $need_link || suffix_rules_count > 1;
1578 if ($needs_c)
1579 {
1580 &define_compiler_variable ($languages{'c'})
1581 unless defined $done{$languages{'c'}};
1582 define_linker_variable ($languages{'c'});
1583 }
1584 }
1587 # append_exeext { PREDICATE } $MACRO
1588 # ----------------------------------
1589 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1590 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1591 # ignored.
1592 #
1593 # This is typically used on all filenames of *_PROGRAMS, and filenames
1594 # of TESTS that are programs.
1595 sub append_exeext (&$)
1596 {
1597 my ($pred, $macro) = @_;
1599 transform_variable_recursively
1600 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1601 sub {
1602 my ($subvar, $val, $cond, $full_cond) = @_;
1603 # Append $(EXEEXT) unless the user did it already, or it's a
1604 # @substitution@.
1605 $val .= '$(EXEEXT)'
1606 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1607 return $val;
1608 });
1609 }
1612 # Check to make sure a source defined in LIBOBJS is not explicitly
1613 # mentioned. This is a separate function (as opposed to being inlined
1614 # in handle_source_transform) because it isn't always appropriate to
1615 # do this check.
1616 sub check_libobjs_sources
1617 {
1618 my ($one_file, $unxformed) = @_;
1620 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1621 'dist_EXTRA_', 'nodist_EXTRA_')
1622 {
1623 my @files;
1624 my $varname = $prefix . $one_file . '_SOURCES';
1625 my $var = var ($varname);
1626 if ($var)
1627 {
1628 @files = $var->value_as_list_recursive;
1629 }
1630 elsif ($prefix eq '')
1631 {
1632 @files = ($unxformed . '.c');
1633 }
1634 else
1635 {
1636 next;
1637 }
1639 foreach my $file (@files)
1640 {
1641 err_var ($prefix . $one_file . '_SOURCES',
1642 "automatically discovered file '$file' should not" .
1643 " be explicitly mentioned")
1644 if defined $libsources{$file};
1645 }
1646 }
1647 }
1650 # @OBJECTS
1651 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1652 # -----------------------------------------------------------------------------
1653 # Does much of the actual work for handle_source_transform.
1654 # Arguments are:
1655 # $VAR is the name of the variable that the source filenames come from
1656 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1657 # $DERIVED is the name of resulting executable or library
1658 # $OBJ is the object extension (e.g., '.lo')
1659 # $FILE the source file to transform
1660 # %TRANSFORM contains extras arguments to pass to file_contents
1661 # when producing explicit rules
1662 # Result is a list of the names of objects
1663 # %linkers_used will be updated with any linkers needed
1664 sub handle_single_transform ($$$$$%)
1665 {
1666 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1667 my @files = ($_file);
1668 my @result = ();
1670 # Turn sources into objects. We use a while loop like this
1671 # because we might add to @files in the loop.
1672 while (scalar @files > 0)
1673 {
1674 $_ = shift @files;
1676 # Configure substitutions in _SOURCES variables are errors.
1677 if (/^\@.*\@$/)
1678 {
1679 my $parent_msg = '';
1680 $parent_msg = "\nand is referred to from '$topparent'"
1681 if $topparent ne $var->name;
1682 err_var ($var,
1683 "'" . $var->name . "' includes configure substitution '$_'"
1684 . $parent_msg . ";\nconfigure " .
1685 "substitutions are not allowed in _SOURCES variables");
1686 next;
1687 }
1689 # If the source file is in a subdirectory then the '.o' is put
1690 # into the current directory, unless the subdir-objects option
1691 # is in effect.
1693 # Split file name into base and extension.
1694 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1695 my $full = $_;
1696 my $directory = $1 || '';
1697 my $base = $2;
1698 my $extension = $3;
1700 # We must generate a rule for the object if it requires its own flags.
1701 my $renamed = 0;
1702 my ($linker, $object);
1704 # This records whether we've seen a derived source file (e.g.
1705 # yacc output).
1706 my $derived_source = 0;
1708 # This holds the 'aggregate context' of the file we are
1709 # currently examining. If the file is compiled with
1710 # per-object flags, then it will be the name of the object.
1711 # Otherwise it will be 'AM'. This is used by the target hook
1712 # language function.
1713 my $aggregate = 'AM';
1715 $extension = &derive_suffix ($extension, $obj);
1716 my $lang;
1717 if ($extension_map{$extension} &&
1718 ($lang = $languages{$extension_map{$extension}}))
1719 {
1720 # Found the language, so see what it says.
1721 &saw_extension ($extension);
1723 # Do we have per-executable flags for this executable?
1724 my $have_per_exec_flags = 0;
1725 my @peflags = @{$lang->flags};
1726 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1727 foreach my $flag (@peflags)
1728 {
1729 if (set_seen ("${derived}_$flag"))
1730 {
1731 $have_per_exec_flags = 1;
1732 last;
1733 }
1734 }
1736 # Note: computed subr call. The language rewrite function
1737 # should return one of the LANG_* constants. It could
1738 # also return a list whose first value is such a constant
1739 # and whose second value is a new source extension which
1740 # should be applied. This means this particular language
1741 # generates another source file which we must then process
1742 # further.
1743 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1744 defined &$subr or $subr = \&lang_sub_obj;
1745 my ($r, $source_extension)
1746 = &$subr ($directory, $base, $extension,
1747 $obj, $have_per_exec_flags, $var);
1748 # Skip this entry if we were asked not to process it.
1749 next if $r == LANG_IGNORE;
1751 # Now extract linker and other info.
1752 $linker = $lang->linker;
1754 my $this_obj_ext;
1755 if (defined $source_extension)
1756 {
1757 $this_obj_ext = $source_extension;
1758 $derived_source = 1;
1759 }
1760 else
1761 {
1762 $this_obj_ext = $obj;
1763 }
1764 $object = $base . $this_obj_ext;
1766 if ($have_per_exec_flags)
1767 {
1768 # We have a per-executable flag in effect for this
1769 # object. In this case we rewrite the object's
1770 # name to ensure it is unique.
1772 # We choose the name 'DERIVED_OBJECT' to ensure
1773 # (1) uniqueness, and (2) continuity between
1774 # invocations. However, this will result in a
1775 # name that is too long for losing systems, in
1776 # some situations. So we provide _SHORTNAME to
1777 # override.
1779 my $dname = $derived;
1780 my $var = var ($derived . '_SHORTNAME');
1781 if ($var)
1782 {
1783 # FIXME: should use the same Condition as
1784 # the _SOURCES variable. But this is really
1785 # silly overkill -- nobody should have
1786 # conditional shortnames.
1787 $dname = $var->variable_value;
1788 }
1789 $object = $dname . '-' . $object;
1791 prog_error ($lang->name . " flags defined without compiler")
1792 if ! defined $lang->compile;
1794 $renamed = 1;
1795 }
1797 # If rewrite said it was ok, put the object into a
1798 # subdir.
1799 if ($r == LANG_SUBDIR && $directory ne '')
1800 {
1801 $object = $directory . '/' . $object;
1802 }
1804 # If the object file has been renamed (because per-target
1805 # flags are used) we cannot compile the file with an
1806 # inference rule: we need an explicit rule.
1807 #
1808 # If the source is in a subdirectory and the object is in
1809 # the current directory, we also need an explicit rule.
1810 #
1811 # If both source and object files are in a subdirectory
1812 # (this happens when the subdir-objects option is used),
1813 # then the inference will work.
1814 #
1815 # The latter case deserves a historical note. When the
1816 # subdir-objects option was added on 1999-04-11 it was
1817 # thought that inferences rules would work for
1818 # subdirectory objects too. Later, on 1999-11-22,
1819 # automake was changed to output explicit rules even for
1820 # subdir-objects. Nobody remembers why, but this occurred
1821 # soon after the merge of the user-dep-gen-branch so it
1822 # might be related. In late 2003 people complained about
1823 # the size of the generated Makefile.ins (libgcj, with
1824 # 2200+ subdir objects was reported to have a 9MB
1825 # Makefile), so we now rely on inference rules again.
1826 # Maybe we'll run across the same issue as in the past,
1827 # but at least this time we can document it. However since
1828 # dependency tracking has evolved it is possible that
1829 # our old problem no longer exists.
1830 # Using inference rules for subdir-objects has been tested
1831 # with GNU make, Solaris make, Ultrix make, BSD make,
1832 # HP-UX make, and OSF1 make successfully.
1833 if ($renamed
1834 || ($directory ne '' && ! option 'subdir-objects')
1835 # We must also use specific rules for a nodist_ source
1836 # if its language requests it.
1837 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1838 {
1839 my $obj_sans_ext = substr ($object, 0,
1840 - length ($this_obj_ext));
1841 my $full_ansi;
1842 if ($directory ne '')
1843 {
1844 $full_ansi = $directory . '/' . $base . $extension;
1845 }
1846 else
1847 {
1848 $full_ansi = $base . $extension;
1849 }
1851 my @specifics = ($full_ansi, $obj_sans_ext,
1852 # Only use $this_obj_ext in the derived
1853 # source case because in the other case we
1854 # *don't* want $(OBJEXT) to appear here.
1855 ($derived_source ? $this_obj_ext : '.o'),
1856 $extension);
1858 # If we renamed the object then we want to use the
1859 # per-executable flag name. But if this is simply a
1860 # subdir build then we still want to use the AM_ flag
1861 # name.
1862 if ($renamed)
1863 {
1864 unshift @specifics, $derived;
1865 $aggregate = $derived;
1866 }
1867 else
1868 {
1869 unshift @specifics, 'AM';
1870 }
1872 # Each item on this list is a reference to a list consisting
1873 # of four values followed by additional transform flags for
1874 # file_contents. The four values are the derived flag prefix
1875 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1876 # source file, the base name of the output file, and
1877 # the extension for the object file.
1878 push (@{$lang_specific_files{$lang->name}},
1879 [@specifics, %transform]);
1880 }
1881 }
1882 elsif ($extension eq $obj)
1883 {
1884 # This is probably the result of a direct suffix rule.
1885 # In this case we just accept the rewrite.
1886 $object = "$base$extension";
1887 $object = "$directory/$object" if $directory ne '';
1888 $linker = '';
1889 }
1890 else
1891 {
1892 # No error message here. Used to have one, but it was
1893 # very unpopular.
1894 # FIXME: we could potentially do more processing here,
1895 # perhaps treating the new extension as though it were a
1896 # new source extension (as above). This would require
1897 # more restructuring than is appropriate right now.
1898 next;
1899 }
1901 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1902 if (defined $object_map{$object}
1903 && $object_map{$object} ne $full);
1905 my $comp_val = (($object =~ /\.lo$/)
1906 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1907 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1908 if (defined $object_compilation_map{$comp_obj}
1909 && $object_compilation_map{$comp_obj} != 0
1910 # Only see the error once.
1911 && ($object_compilation_map{$comp_obj}
1912 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1913 && $object_compilation_map{$comp_obj} != $comp_val)
1914 {
1915 err_am "object '$comp_obj' created both with libtool and without";
1916 }
1917 $object_compilation_map{$comp_obj} |= $comp_val;
1919 if (defined $lang)
1920 {
1921 # Let the language do some special magic if required.
1922 $lang->target_hook ($aggregate, $object, $full, %transform);
1923 }
1925 if ($derived_source)
1926 {
1927 prog_error ($lang->name . " has automatic dependency tracking")
1928 if $lang->autodep ne 'no';
1929 # Make sure this new source file is handled next. That will
1930 # make it appear to be at the right place in the list.
1931 unshift (@files, $object);
1932 # Distribute derived sources unless the source they are
1933 # derived from is not.
1934 &push_dist_common ($object)
1935 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1936 next;
1937 }
1939 $linkers_used{$linker} = 1;
1941 push (@result, $object);
1943 if (! defined $object_map{$object})
1944 {
1945 my @dep_list = ();
1946 $object_map{$object} = $full;
1948 # If resulting object is in subdir, we need to make
1949 # sure the subdir exists at build time.
1950 if ($object =~ /\//)
1951 {
1952 # FIXME: check that $DIRECTORY is somewhere in the
1953 # project
1955 # For Java, the way we're handling it right now, a
1956 # '..' component doesn't make sense.
1957 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1958 {
1959 err_am "'$full' should not contain a '..' component";
1960 }
1962 # Make sure *all* objects files in the subdirectory are
1963 # removed by "make mostlyclean". Not only this is more
1964 # efficient than listing the object files to be removed
1965 # individually (which would cause an 'rm' invocation for
1966 # each of them -- very inefficient, see bug#10697), it
1967 # would also leave stale object files in the subdirectory
1968 # whenever a source file there is removed or renamed.
1969 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
1970 if ($object =~ /\.lo$/)
1971 {
1972 # If we have a libtool object, then we also must remove
1973 # any '.lo' objects in its same subdirectory.
1974 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
1975 # Remember to cleanup .libs/ in this directory.
1976 $libtool_clean_directories{$directory} = 1;
1977 }
1979 push (@dep_list, require_build_directory ($directory));
1981 # If we're generating dependencies, we also want
1982 # to make sure that the appropriate subdir of the
1983 # .deps directory is created.
1984 push (@dep_list,
1985 require_build_directory ($directory . '/$(DEPDIR)'))
1986 unless option 'no-dependencies';
1987 }
1989 &pretty_print_rule ($object . ':', "\t", @dep_list)
1990 if scalar @dep_list > 0;
1991 }
1993 # Transform .o or $o file into .P file (for automatic
1994 # dependency code).
1995 # Properly flatten multiple adjacent slashes, as Solaris 10 make
1996 # might fail over them in an include statement.
1997 # Leading double slashes may be special, as per Posix, so deal
1998 # with them carefully.
1999 if ($lang && $lang->autodep ne 'no')
2000 {
2001 my $depfile = $object;
2002 $depfile =~ s/\.([^.]*)$/.P$1/;
2003 $depfile =~ s/\$\(OBJEXT\)$/o/;
2004 my $maybe_extra_leading_slash = '';
2005 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2006 $depfile =~ s,/+,/,g;
2007 my $basename = basename ($depfile);
2008 # This might make $dirname empty, but we account for that below.
2009 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2010 $dirname = $maybe_extra_leading_slash . $dirname;
2011 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2012 }
2013 }
2015 return @result;
2016 }
2019 # $LINKER
2020 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2021 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2022 # ---------------------------------------------------------------------------
2023 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2024 #
2025 # Arguments are:
2026 # $VAR is the name of the _SOURCES variable
2027 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2028 # it will be generated and returned).
2029 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2030 # work done to determine the linker will be).
2031 # $ONE_FILE is the canonical (transformed) name of object to build
2032 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2033 # $TOPPARENT is the _SOURCES variable being processed.
2034 # $WHERE context into which this definition is done
2035 # %TRANSFORM extra arguments to pass to file_contents when producing
2036 # rules
2037 #
2038 # Result is a pair ($LINKER, $OBJVAR):
2039 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2040 sub define_objects_from_sources ($$$$$$$%)
2041 {
2042 my ($var, $objvar, $nodefine, $one_file,
2043 $obj, $topparent, $where, %transform) = @_;
2045 my $needlinker = "";
2047 transform_variable_recursively
2048 ($var, $objvar, 'am__objects', $nodefine, $where,
2049 # The transform code to run on each filename.
2050 sub {
2051 my ($subvar, $val, $cond, $full_cond) = @_;
2052 my @trans = handle_single_transform ($subvar, $topparent,
2053 $one_file, $obj, $val,
2054 %transform);
2055 $needlinker = "true" if @trans;
2056 return @trans;
2057 });
2059 return $needlinker;
2060 }
2063 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2064 # -----------------------------------------------------------------------------
2065 # Handle SOURCE->OBJECT transform for one program or library.
2066 # Arguments are:
2067 # canonical (transformed) name of target to build
2068 # actual target of object to build
2069 # object extension (i.e., either '.o' or '$o')
2070 # location of the source variable
2071 # extra arguments to pass to file_contents when producing rules
2072 # Return the name of the linker variable that must be used.
2073 # Empty return means just use 'LINK'.
2074 sub handle_source_transform ($$$$%)
2075 {
2076 # one_file is canonical name. unxformed is given name. obj is
2077 # object extension.
2078 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2080 my $linker = '';
2082 # No point in continuing if _OBJECTS is defined.
2083 return if reject_var ($one_file . '_OBJECTS',
2084 $one_file . '_OBJECTS should not be defined');
2086 my %used_pfx = ();
2087 my $needlinker;
2088 %linkers_used = ();
2089 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2090 'dist_EXTRA_', 'nodist_EXTRA_')
2091 {
2092 my $varname = $prefix . $one_file . "_SOURCES";
2093 my $var = var $varname;
2094 next unless $var;
2096 # We are going to define _OBJECTS variables using the prefix.
2097 # Then we glom them all together. So we can't use the null
2098 # prefix here as we need it later.
2099 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2101 # Keep track of which prefixes we saw.
2102 $used_pfx{$xpfx} = 1
2103 unless $prefix =~ /EXTRA_/;
2105 push @sources, "\$($varname)";
2106 push @dist_sources, shadow_unconditionally ($varname, $where)
2107 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2109 $needlinker |=
2110 define_objects_from_sources ($varname,
2111 $xpfx . $one_file . '_OBJECTS',
2112 $prefix =~ /EXTRA_/,
2113 $one_file, $obj, $varname, $where,
2114 DIST_SOURCE => ($prefix !~ /^nodist_/),
2115 %transform);
2116 }
2117 if ($needlinker)
2118 {
2119 $linker ||= &resolve_linker (%linkers_used);
2120 }
2122 my @keys = sort keys %used_pfx;
2123 if (scalar @keys == 0)
2124 {
2125 # The default source for libfoo.la is libfoo.c, but for
2126 # backward compatibility we first look at libfoo_la.c,
2127 # if no default source suffix is given.
2128 my $old_default_source = "$one_file.c";
2129 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2130 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2131 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2132 if $default_source_ext =~ /[\t ]/;
2133 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2134 # TODO: Remove this backward-compatibility hack in Automake 1.14.
2135 if ($old_default_source ne $default_source
2136 && !$ext_var
2137 && (rule $old_default_source
2138 || rule '$(srcdir)/' . $old_default_source
2139 || rule '${srcdir}/' . $old_default_source
2140 || -f $old_default_source))
2141 {
2142 my $loc = $where->clone;
2143 $loc->pop_context;
2144 msg ('obsolete', $loc,
2145 "the default source for '$unxformed' has been changed "
2146 . "to '$default_source'.\n(Using '$old_default_source' for "
2147 . "backward compatibility.)");
2148 $default_source = $old_default_source;
2149 }
2150 # If a rule exists to build this source with a $(srcdir)
2151 # prefix, use that prefix in our variables too. This is for
2152 # the sake of BSD Make.
2153 if (rule '$(srcdir)/' . $default_source
2154 || rule '${srcdir}/' . $default_source)
2155 {
2156 $default_source = '$(srcdir)/' . $default_source;
2157 }
2159 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2160 push (@sources, $default_source);
2161 push (@dist_sources, $default_source);
2163 %linkers_used = ();
2164 my (@result) =
2165 handle_single_transform ($one_file . '_SOURCES',
2166 $one_file . '_SOURCES',
2167 $one_file, $obj,
2168 $default_source, %transform);
2169 $linker ||= &resolve_linker (%linkers_used);
2170 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2171 }
2172 else
2173 {
2174 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2175 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2176 }
2178 # If we want to use 'LINK' we must make sure it is defined.
2179 if ($linker eq '')
2180 {
2181 $need_link = 1;
2182 }
2184 return $linker;
2185 }
2188 # handle_lib_objects ($XNAME, $VAR)
2189 # ---------------------------------
2190 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2191 # Also, generate _DEPENDENCIES variable if appropriate.
2192 # Arguments are:
2193 # transformed name of object being built, or empty string if no object
2194 # name of _LDADD/_LIBADD-type variable to examine
2195 # Returns 1 if LIBOBJS seen, 0 otherwise.
2196 sub handle_lib_objects
2197 {
2198 my ($xname, $varname) = @_;
2200 my $var = var ($varname);
2201 prog_error "'$varname' undefined"
2202 unless $var;
2203 prog_error "unexpected variable name '$varname'"
2204 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2205 my $prefix = $1 || 'AM_';
2207 my $seen_libobjs = 0;
2208 my $flagvar = 0;
2210 transform_variable_recursively
2211 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2212 ! $xname, INTERNAL,
2213 # Transformation function, run on each filename.
2214 sub {
2215 my ($subvar, $val, $cond, $full_cond) = @_;
2217 if ($val =~ /^-/)
2218 {
2219 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2220 if ($val !~ /^-[lL]/ &&
2221 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2222 # for Libtool libraries or programs. (Actually we are a bit
2223 # lax here since this code also applies to non-libtool
2224 # libraries or programs, for which -dlopen and -dlopreopen
2225 # are pure nonsense. Diagnosing this doesn't seem very
2226 # important: the developer will quickly get complaints from
2227 # the linker.)
2228 $val !~ /^-dl(?:pre)?open$/ &&
2229 # Only get this error once.
2230 ! $flagvar)
2231 {
2232 $flagvar = 1;
2233 # FIXME: should display a stack of nested variables
2234 # as context when $var != $subvar.
2235 err_var ($var, "linker flags such as '$val' belong in "
2236 . "'${prefix}LDFLAGS'");
2237 }
2238 return ();
2239 }
2240 elsif ($val !~ /^\@.*\@$/)
2241 {
2242 # Assume we have a file of some sort, and output it into the
2243 # dependency variable. Autoconf substitutions are not output;
2244 # rarely is a new dependency substituted into e.g. foo_LDADD
2245 # -- but bad things (e.g. -lX11) are routinely substituted.
2246 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2247 # and handled specially below.
2248 return $val;
2249 }
2250 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2251 {
2252 handle_LIBOBJS ($subvar, $cond, $1);
2253 $seen_libobjs = 1;
2254 return $val;
2255 }
2256 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2257 {
2258 handle_ALLOCA ($subvar, $cond, $1);
2259 return $val;
2260 }
2261 else
2262 {
2263 return ();
2264 }
2265 });
2267 return $seen_libobjs;
2268 }
2270 # handle_LIBOBJS_or_ALLOCA ($VAR)
2271 # -------------------------------
2272 # Definitions common to LIBOBJS and ALLOCA.
2273 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2274 sub handle_LIBOBJS_or_ALLOCA ($)
2275 {
2276 my ($var) = @_;
2278 my $dir = '';
2280 # If LIBOBJS files must be built in another directory we have
2281 # to define LIBOBJDIR and ensure the files get cleaned.
2282 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2283 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2284 if ($config_libobj_dir
2285 && $relative_dir ne $config_libobj_dir)
2286 {
2287 if (option 'subdir-objects')
2288 {
2289 # In the top-level Makefile we do not use $(top_builddir), because
2290 # we are already there, and since the targets are built without
2291 # a $(top_builddir), it helps BSD Make to match them with
2292 # dependencies.
2293 $dir = "$config_libobj_dir/"
2294 if $config_libobj_dir ne '.';
2295 $dir = backname ($relative_dir) . "/$dir"
2296 if $relative_dir ne '.';
2297 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2298 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2299 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2300 # be created by libtool as a side-effect of creating LTLIBOBJS).
2301 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2302 }
2303 else
2304 {
2305 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2306 . " 'subdir-objects' is not set");
2307 }
2308 }
2310 return $dir;
2311 }
2313 sub handle_LIBOBJS ($$$)
2314 {
2315 my ($var, $cond, $lt) = @_;
2316 my $myobjext = $lt ? 'lo' : 'o';
2317 $lt ||= '';
2319 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2320 if ! keys %libsources;
2322 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2324 foreach my $iter (keys %libsources)
2325 {
2326 if ($iter =~ /\.[cly]$/)
2327 {
2328 &saw_extension ($&);
2329 &saw_extension ('.c');
2330 }
2332 if ($iter =~ /\.h$/)
2333 {
2334 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2335 }
2336 elsif ($iter ne 'alloca.c')
2337 {
2338 my $rewrite = $iter;
2339 $rewrite =~ s/\.c$/.P$myobjext/;
2340 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2341 $rewrite = "^" . quotemeta ($iter) . "\$";
2342 # Only require the file if it is not a built source.
2343 my $bs = var ('BUILT_SOURCES');
2344 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2345 {
2346 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2347 }
2348 }
2349 }
2350 }
2352 sub handle_ALLOCA ($$$)
2353 {
2354 my ($var, $cond, $lt) = @_;
2355 my $myobjext = $lt ? 'lo' : 'o';
2356 $lt ||= '';
2357 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2359 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2360 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2361 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2362 &saw_extension ('.c');
2363 }
2365 # Canonicalize the input parameter
2366 sub canonicalize
2367 {
2368 my ($string) = @_;
2369 $string =~ tr/A-Za-z0-9_\@/_/c;
2370 return $string;
2371 }
2373 # Canonicalize a name, and check to make sure the non-canonical name
2374 # is never used. Returns canonical name. Arguments are name and a
2375 # list of suffixes to check for.
2376 sub check_canonical_spelling
2377 {
2378 my ($name, @suffixes) = @_;
2380 my $xname = &canonicalize ($name);
2381 if ($xname ne $name)
2382 {
2383 foreach my $xt (@suffixes)
2384 {
2385 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2386 }
2387 }
2389 return $xname;
2390 }
2393 # handle_compile ()
2394 # -----------------
2395 # Set up the compile suite.
2396 sub handle_compile ()
2397 {
2398 return if ! $must_handle_compiled_objects;
2400 # Boilerplate.
2401 my $default_includes = '';
2402 if (! option 'nostdinc')
2403 {
2404 my @incs = ('-I.', subst ('am__isrc'));
2406 my $var = var 'CONFIG_HEADER';
2407 if ($var)
2408 {
2409 foreach my $hdr (split (' ', $var->variable_value))
2410 {
2411 push @incs, '-I' . dirname ($hdr);
2412 }
2413 }
2414 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2415 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2416 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2417 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2418 # to just put @am__isrc@ right after '-I.', without a space.
2419 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2420 }
2422 my (@mostly_rms, @dist_rms);
2423 foreach my $item (sort keys %compile_clean_files)
2424 {
2425 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2426 {
2427 push (@mostly_rms, "\t-rm -f $item");
2428 }
2429 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2430 {
2431 push (@dist_rms, "\t-rm -f $item");
2432 }
2433 else
2434 {
2435 prog_error 'invalid entry in %compile_clean_files';
2436 }
2437 }
2439 my ($coms, $vars, $rules) =
2440 &file_contents_internal (1, "$libdir/am/compile.am",
2441 new Automake::Location,
2442 ('DEFAULT_INCLUDES' => $default_includes,
2443 'MOSTLYRMS' => join ("\n", @mostly_rms),
2444 'DISTRMS' => join ("\n", @dist_rms)));
2445 $output_vars .= $vars;
2446 $output_rules .= "$coms$rules";
2447 }
2449 # handle_libtool ()
2450 # -----------------
2451 # Handle libtool rules.
2452 sub handle_libtool
2453 {
2454 return unless var ('LIBTOOL');
2456 # Libtool requires some files, but only at top level.
2457 # (Starting with Libtool 2.0 we do not have to bother. These
2458 # requirements are done with AC_REQUIRE_AUX_FILE.)
2459 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2460 if $relative_dir eq '.' && ! $libtool_new_api;
2462 my @libtool_rms;
2463 foreach my $item (sort keys %libtool_clean_directories)
2464 {
2465 my $dir = ($item eq '.') ? '' : "$item/";
2466 # .libs is for Unix, _libs for DOS.
2467 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2468 }
2470 check_user_variables 'LIBTOOLFLAGS';
2472 # Output the libtool compilation rules.
2473 $output_rules .= &file_contents ('libtool',
2474 new Automake::Location,
2475 LTRMS => join ("\n", @libtool_rms));
2476 }
2478 # handle_programs ()
2479 # ------------------
2480 # Handle C programs.
2481 sub handle_programs
2482 {
2483 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2484 'bin', 'sbin', 'libexec', 'pkglibexec',
2485 'noinst', 'check');
2486 return if ! @proglist;
2487 $must_handle_compiled_objects = 1;
2489 my $seen_global_libobjs =
2490 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2492 foreach my $pair (@proglist)
2493 {
2494 my ($where, $one_file) = @$pair;
2496 my $seen_libobjs = 0;
2497 my $obj = '.$(OBJEXT)';
2499 $known_programs{$one_file} = $where;
2501 # Canonicalize names and check for misspellings.
2502 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2503 '_SOURCES', '_OBJECTS',
2504 '_DEPENDENCIES');
2506 $where->push_context ("while processing program '$one_file'");
2507 $where->set (INTERNAL->get);
2509 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2510 NONLIBTOOL => 1, LIBTOOL => 0);
2512 if (var ($xname . "_LDADD"))
2513 {
2514 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2515 }
2516 else
2517 {
2518 # User didn't define prog_LDADD override. So do it.
2519 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2521 # This does a bit too much work. But we need it to
2522 # generate _DEPENDENCIES when appropriate.
2523 if (var ('LDADD'))
2524 {
2525 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2526 }
2527 }
2529 reject_var ($xname . '_LIBADD',
2530 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2532 set_seen ($xname . '_DEPENDENCIES');
2533 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2534 set_seen ($xname . '_LDFLAGS');
2536 # Determine program to use for link.
2537 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2538 $vlink = verbose_flag ($vlink || 'GEN');
2540 # If the resulting program lies in a subdirectory,
2541 # ensure that the directory exists before we need it.
2542 my $dirstamp = require_build_directory_maybe ($one_file);
2544 $libtool_clean_directories{dirname ($one_file)} = 1;
2546 $output_rules .= &file_contents ('program',
2547 $where,
2548 PROGRAM => $one_file,
2549 XPROGRAM => $xname,
2550 XLINK => $xlink,
2551 VERBOSE => $vlink,
2552 DIRSTAMP => $dirstamp,
2553 EXEEXT => '$(EXEEXT)');
2555 if ($seen_libobjs || $seen_global_libobjs)
2556 {
2557 if (var ($xname . '_LDADD'))
2558 {
2559 &check_libobjs_sources ($xname, $xname . '_LDADD');
2560 }
2561 elsif (var ('LDADD'))
2562 {
2563 &check_libobjs_sources ($xname, 'LDADD');
2564 }
2565 }
2566 }
2567 }
2570 # handle_libraries ()
2571 # -------------------
2572 # Handle libraries.
2573 sub handle_libraries
2574 {
2575 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2576 'lib', 'pkglib', 'noinst', 'check');
2577 return if ! @liblist;
2578 $must_handle_compiled_objects = 1;
2580 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2581 'noinst', 'check');
2583 if (@prefix)
2584 {
2585 my $var = rvar ($prefix[0] . '_LIBRARIES');
2586 $var->requires_variables ('library used', 'RANLIB');
2587 }
2589 &define_variable ('AR', 'ar', INTERNAL);
2590 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2591 &define_verbose_tagvar ('AR');
2593 foreach my $pair (@liblist)
2594 {
2595 my ($where, $onelib) = @$pair;
2597 my $seen_libobjs = 0;
2598 # Check that the library fits the standard naming convention.
2599 my $bn = basename ($onelib);
2600 if ($bn !~ /^lib.*\.a$/)
2601 {
2602 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2603 my $suggestion = dirname ($onelib) . "/$bn";
2604 $suggestion =~ s|^\./||g;
2605 msg ('error-gnu/warn', $where,
2606 "'$onelib' is not a standard library name\n"
2607 . "did you mean '$suggestion'?")
2608 }
2610 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2612 $where->push_context ("while processing library '$onelib'");
2613 $where->set (INTERNAL->get);
2615 my $obj = '.$(OBJEXT)';
2617 # Canonicalize names and check for misspellings.
2618 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2619 '_OBJECTS', '_DEPENDENCIES',
2620 '_AR');
2622 if (! var ($xlib . '_AR'))
2623 {
2624 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2625 }
2627 # Generate support for conditional object inclusion in
2628 # libraries.
2629 if (var ($xlib . '_LIBADD'))
2630 {
2631 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2632 {
2633 $seen_libobjs = 1;
2634 }
2635 }
2636 else
2637 {
2638 &define_variable ($xlib . "_LIBADD", '', $where);
2639 }
2641 reject_var ($xlib . '_LDADD',
2642 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2644 # Make sure we at look at this.
2645 set_seen ($xlib . '_DEPENDENCIES');
2646 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2648 &handle_source_transform ($xlib, $onelib, $obj, $where,
2649 NONLIBTOOL => 1, LIBTOOL => 0);
2651 # If the resulting library lies in a subdirectory,
2652 # make sure this directory will exist.
2653 my $dirstamp = require_build_directory_maybe ($onelib);
2654 my $verbose = verbose_flag ('AR');
2655 my $silent = silent_flag ();
2657 $output_rules .= &file_contents ('library',
2658 $where,
2659 VERBOSE => $verbose,
2660 SILENT => $silent,
2661 LIBRARY => $onelib,
2662 XLIBRARY => $xlib,
2663 DIRSTAMP => $dirstamp);
2665 if ($seen_libobjs)
2666 {
2667 if (var ($xlib . '_LIBADD'))
2668 {
2669 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2670 }
2671 }
2673 if (! $seen_ar)
2674 {
2675 msg ('extra-portability', $where,
2676 "'$onelib': linking libraries using a non-POSIX\n"
2677 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2678 }
2679 }
2680 }
2683 # handle_ltlibraries ()
2684 # ---------------------
2685 # Handle shared libraries.
2686 sub handle_ltlibraries
2687 {
2688 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2689 'noinst', 'lib', 'pkglib', 'check');
2690 return if ! @liblist;
2691 $must_handle_compiled_objects = 1;
2693 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2694 'noinst', 'check');
2696 if (@prefix)
2697 {
2698 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2699 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2700 }
2702 my %instdirs = ();
2703 my %instsubdirs = ();
2704 my %instconds = ();
2705 my %liblocations = (); # Location (in Makefile.am) of each library.
2707 foreach my $key (@prefix)
2708 {
2709 # Get the installation directory of each library.
2710 my $dir = $key;
2711 my $strip_subdir = 1;
2712 if ($dir =~ /^nobase_/)
2713 {
2714 $dir =~ s/^nobase_//;
2715 $strip_subdir = 0;
2716 }
2717 my $var = rvar ($key . '_LTLIBRARIES');
2719 # We reject libraries which are installed in several places
2720 # in the same condition, because we can only specify one
2721 # '-rpath' option.
2722 $var->traverse_recursively
2723 (sub
2724 {
2725 my ($var, $val, $cond, $full_cond) = @_;
2726 my $hcond = $full_cond->human;
2727 my $where = $var->rdef ($cond)->location;
2728 my $ldir = '';
2729 $ldir = '/' . dirname ($val)
2730 if (!$strip_subdir);
2731 # A library cannot be installed in different directories
2732 # in overlapping conditions.
2733 if (exists $instconds{$val})
2734 {
2735 my ($msg, $acond) =
2736 $instconds{$val}->ambiguous_p ($val, $full_cond);
2738 if ($msg)
2739 {
2740 error ($where, $msg, partial => 1);
2741 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2742 $dirtxt = "built for '$dir'"
2743 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2744 my $dircond =
2745 $full_cond->true ? "" : " in condition $hcond";
2747 error ($where, "'$val' should be $dirtxt$dircond ...",
2748 partial => 1);
2750 my $hacond = $acond->human;
2751 my $adir = $instdirs{$val}{$acond};
2752 my $adirtxt = "installed in '$adir'";
2753 $adirtxt = "built for '$adir'"
2754 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2755 || $adir eq 'check');
2756 my $adircond = $acond->true ? "" : " in condition $hacond";
2758 my $onlyone = ($dir ne $adir) ?
2759 ("\nLibtool libraries can be built for only one "
2760 . "destination") : "";
2762 error ($liblocations{$val}{$acond},
2763 "... and should also be $adirtxt$adircond.$onlyone");
2764 return;
2765 }
2766 }
2767 else
2768 {
2769 $instconds{$val} = new Automake::DisjConditions;
2770 }
2771 $instdirs{$val}{$full_cond} = $dir;
2772 $instsubdirs{$val}{$full_cond} = $ldir;
2773 $liblocations{$val}{$full_cond} = $where;
2774 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2775 },
2776 sub
2777 {
2778 return ();
2779 },
2780 skip_ac_subst => 1);
2781 }
2783 foreach my $pair (@liblist)
2784 {
2785 my ($where, $onelib) = @$pair;
2787 my $seen_libobjs = 0;
2788 my $obj = '.lo';
2790 # Canonicalize names and check for misspellings.
2791 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2792 '_SOURCES', '_OBJECTS',
2793 '_DEPENDENCIES');
2795 # Check that the library fits the standard naming convention.
2796 my $libname_rx = '^lib.*\.la';
2797 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2798 my $ldvar2 = var ('LDFLAGS');
2799 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2800 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2801 {
2802 # Relax name checking for libtool modules.
2803 $libname_rx = '\.la';
2804 }
2806 my $bn = basename ($onelib);
2807 if ($bn !~ /$libname_rx$/)
2808 {
2809 my $type = 'library';
2810 if ($libname_rx eq '\.la')
2811 {
2812 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2813 $type = 'module';
2814 }
2815 else
2816 {
2817 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2818 }
2819 my $suggestion = dirname ($onelib) . "/$bn";
2820 $suggestion =~ s|^\./||g;
2821 msg ('error-gnu/warn', $where,
2822 "'$onelib' is not a standard libtool $type name\n"
2823 . "did you mean '$suggestion'?")
2824 }
2826 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2828 $where->push_context ("while processing Libtool library '$onelib'");
2829 $where->set (INTERNAL->get);
2831 # Make sure we look at these.
2832 set_seen ($xlib . '_LDFLAGS');
2833 set_seen ($xlib . '_DEPENDENCIES');
2834 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2836 # Generate support for conditional object inclusion in
2837 # libraries.
2838 if (var ($xlib . '_LIBADD'))
2839 {
2840 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2841 {
2842 $seen_libobjs = 1;
2843 }
2844 }
2845 else
2846 {
2847 &define_variable ($xlib . "_LIBADD", '', $where);
2848 }
2850 reject_var ("${xlib}_LDADD",
2851 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2854 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2855 NONLIBTOOL => 0, LIBTOOL => 1);
2857 # Determine program to use for link.
2858 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2859 $vlink = verbose_flag ($vlink || 'GEN');
2861 my $rpathvar = "am_${xlib}_rpath";
2862 my $rpath = "\$($rpathvar)";
2863 foreach my $rcond ($instconds{$onelib}->conds)
2864 {
2865 my $val;
2866 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2867 || $instdirs{$onelib}{$rcond} eq 'noinst'
2868 || $instdirs{$onelib}{$rcond} eq 'check')
2869 {
2870 # It's an EXTRA_ library, so we can't specify -rpath,
2871 # because we don't know where the library will end up.
2872 # The user probably knows, but generally speaking automake
2873 # doesn't -- and in fact configure could decide
2874 # dynamically between two different locations.
2875 $val = '';
2876 }
2877 else
2878 {
2879 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2880 $val .= $instsubdirs{$onelib}{$rcond}
2881 if defined $instsubdirs{$onelib}{$rcond};
2882 }
2883 if ($rcond->true)
2884 {
2885 # If $rcond is true there is only one condition and
2886 # there is no point defining an helper variable.
2887 $rpath = $val;
2888 }
2889 else
2890 {
2891 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2892 }
2893 }
2895 # If the resulting library lies in a subdirectory,
2896 # make sure this directory will exist.
2897 my $dirstamp = require_build_directory_maybe ($onelib);
2899 # Remember to cleanup .libs/ in this directory.
2900 my $dirname = dirname $onelib;
2901 $libtool_clean_directories{$dirname} = 1;
2903 $output_rules .= &file_contents ('ltlibrary',
2904 $where,
2905 LTLIBRARY => $onelib,
2906 XLTLIBRARY => $xlib,
2907 RPATH => $rpath,
2908 XLINK => $xlink,
2909 VERBOSE => $vlink,
2910 DIRSTAMP => $dirstamp);
2911 if ($seen_libobjs)
2912 {
2913 if (var ($xlib . '_LIBADD'))
2914 {
2915 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2916 }
2917 }
2919 if (! $seen_ar)
2920 {
2921 msg ('extra-portability', $where,
2922 "'$onelib': linking libtool libraries using a non-POSIX\n"
2923 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2924 }
2925 }
2926 }
2928 # See if any _SOURCES variable were misspelled.
2929 sub check_typos ()
2930 {
2931 # It is ok if the user sets this particular variable.
2932 set_seen 'AM_LDFLAGS';
2934 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2935 {
2936 foreach my $var (variables $primary)
2937 {
2938 my $varname = $var->name;
2939 # A configure variable is always legitimate.
2940 next if exists $configure_vars{$varname};
2942 for my $cond ($var->conditions->conds)
2943 {
2944 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2945 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2946 . " program or\nlibrary has '$1' as canonical name"
2947 . " (possible typo)")
2948 unless $var->rdef ($cond)->seen;
2949 }
2950 }
2951 }
2952 }
2955 # Handle scripts.
2956 sub handle_scripts
2957 {
2958 # NOTE we no longer automatically clean SCRIPTS, because it is
2959 # useful to sometimes distribute scripts verbatim. This happens
2960 # e.g. in Automake itself.
2961 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2962 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2963 'noinst', 'check');
2964 }
2969 ## ------------------------ ##
2970 ## Handling Texinfo files. ##
2971 ## ------------------------ ##
2973 # ($OUTFILE, $VFILE)
2974 # &scan_texinfo_file ($FILENAME)
2975 # ------------------------------
2976 # $OUTFILE - name of the info file produced by $FILENAME.
2977 # $VFILE - name of the version.texi file used (undef if none).
2978 sub scan_texinfo_file ($)
2979 {
2980 my ($filename) = @_;
2982 my $texi = new Automake::XFile "< $filename";
2983 verb "reading $filename";
2985 my ($outfile, $vfile);
2986 while ($_ = $texi->getline)
2987 {
2988 if (/^\@setfilename +(\S+)/)
2989 {
2990 # Honor only the first @setfilename. (It's possible to have
2991 # more occurrences later if the manual shows examples of how
2992 # to use @setfilename...)
2993 next if $outfile;
2995 $outfile = $1;
2996 if (index ($outfile, '.') < 0)
2997 {
2998 msg 'obsolete', "$filename:$.",
2999 "use of suffix-less info files is discouraged"
3000 }
3001 elsif ($outfile !~ /\.info$/)
3002 {
3003 error ("$filename:$.",
3004 "output '$outfile' has unrecognized extension");
3005 return;
3006 }
3007 }
3008 # A "version.texi" file is actually any file whose name matches
3009 # "vers*.texi".
3010 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3011 {
3012 $vfile = $1;
3013 }
3014 }
3016 if (! $outfile)
3017 {
3018 err_am "'$filename' missing \@setfilename";
3019 return;
3020 }
3022 return ($outfile, $vfile);
3023 }
3026 # ($DIRSTAMP, @CLEAN_FILES)
3027 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3028 # ------------------------------------------------------------------
3029 # SOURCE - the source Texinfo file
3030 # DEST - the destination Info file
3031 # INSRC - whether DEST should be built in the source tree
3032 # DEPENDENCIES - known dependencies
3033 sub output_texinfo_build_rules ($$$@)
3034 {
3035 my ($source, $dest, $insrc, @deps) = @_;
3037 # Split 'a.texi' into 'a' and '.texi'.
3038 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3039 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3041 $ssfx ||= "";
3042 $dsfx ||= "";
3044 # We can output two kinds of rules: the "generic" rules use Make
3045 # suffix rules and are appropriate when $source and $dest do not lie
3046 # in a sub-directory; the "specific" rules are needed in the other
3047 # case.
3048 #
3049 # The former are output only once (this is not really apparent here,
3050 # but just remember that some logic deeper in Automake will not
3051 # output the same rule twice); while the later need to be output for
3052 # each Texinfo source.
3053 my $generic;
3054 my $makeinfoflags;
3055 my $sdir = dirname $source;
3056 if ($sdir eq '.' && dirname ($dest) eq '.')
3057 {
3058 $generic = 1;
3059 $makeinfoflags = '-I $(srcdir)';
3060 }
3061 else
3062 {
3063 $generic = 0;
3064 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3065 }
3067 # A directory can contain two kinds of info files: some built in the
3068 # source tree, and some built in the build tree. The rules are
3069 # different in each case. However we cannot output two different
3070 # set of generic rules. Because in-source builds are more usual, we
3071 # use generic rules in this case and fall back to "specific" rules
3072 # for build-dir builds. (It should not be a problem to invert this
3073 # if needed.)
3074 $generic = 0 unless $insrc;
3076 # We cannot use a suffix rule to build info files with an empty
3077 # extension. Otherwise we would output a single suffix inference
3078 # rule, with separate dependencies, as in
3079 #
3080 # .texi:
3081 # $(MAKEINFO) ...
3082 # foo.info: foo.texi
3083 #
3084 # which confuse Solaris make. (See the Autoconf manual for
3085 # details.) Therefore we use a specific rule in this case. This
3086 # applies to info files only (dvi and pdf files always have an
3087 # extension).
3088 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3090 # If the resulting file lies in a subdirectory,
3091 # make sure this directory will exist.
3092 my $dirstamp = require_build_directory_maybe ($dest);
3094 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3096 $output_rules .= file_contents ('texibuild',
3097 new Automake::Location,
3098 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3099 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3100 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3101 DEPS => "@deps",
3102 DEST_PREFIX => $dpfx,
3103 DEST_INFO_PREFIX => $dipfx,
3104 DEST_SUFFIX => $dsfx,
3105 DIRSTAMP => $dirstamp,
3106 GENERIC => $generic,
3107 GENERIC_INFO => $generic_info,
3108 INSRC => $insrc,
3109 MAKEINFOFLAGS => $makeinfoflags,
3110 SILENT => silent_flag(),
3111 SOURCE => ($generic
3112 ? '$<' : $source),
3113 SOURCE_INFO => ($generic_info
3114 ? '$<' : $source),
3115 SOURCE_REAL => $source,
3116 SOURCE_SUFFIX => $ssfx,
3117 TEXIQUIET => verbose_flag('texinfo'),
3118 TEXIDEVNULL => verbose_flag('texidevnull'),
3119 );
3120 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3121 }
3124 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3125 # handle_texinfo_helper ($info_texinfos)
3126 # --------------------------------------
3127 # Handle all Texinfo source; helper for handle_texinfo.
3128 sub handle_texinfo_helper ($)
3129 {
3130 my ($info_texinfos) = @_;
3131 my (@infobase, @info_deps_list, @texi_deps);
3132 my %versions;
3133 my $done = 0;
3134 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3136 # Build a regex matching user-cleaned files.
3137 my $d = var 'DISTCLEANFILES';
3138 my $c = var 'CLEANFILES';
3139 my @f = ();
3140 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3141 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3142 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3143 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3145 foreach my $texi
3146 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3147 {
3148 my $infobase = $texi;
3149 if ($infobase =~ s/\.texi$//)
3150 {
3151 1; # Nothing more to do.
3152 }
3153 elsif ($infobase =~ s/\.(txi|texinfo)$//)
3154 {
3155 msg_var 'obsolete', $info_texinfos,
3156 "suffix '.$1' for Texinfo files is discouraged;" .
3157 " use '.texi' instead";
3158 }
3159 else
3160 {
3161 # FIXME: report line number.
3162 err_am "texinfo file '$texi' has unrecognized extension";
3163 next;
3164 }
3166 push @infobase, $infobase;
3168 # If 'version.texi' is referenced by input file, then include
3169 # automatic versioning capability.
3170 my ($out_file, $vtexi) =
3171 scan_texinfo_file ("$relative_dir/$texi")
3172 or next;
3173 # Directory of auxiliary files and build by-products used by texi2dvi
3174 # and texi2pdf.
3175 push @mostly_cleans, "$infobase.t2d";
3176 push @mostly_cleans, "$infobase.t2p";
3178 # If the Texinfo source is in a subdirectory, create the
3179 # resulting info in this subdirectory. If it is in the current
3180 # directory, try hard to not prefix "./" because it breaks the
3181 # generic rules.
3182 my $outdir = dirname ($texi) . '/';
3183 $outdir = "" if $outdir eq './';
3184 $out_file = $outdir . $out_file;
3186 # Until Automake 1.6.3, .info files were built in the
3187 # source tree. This was an obstacle to the support of
3188 # non-distributed .info files, and non-distributed .texi
3189 # files.
3190 #
3191 # * Non-distributed .texi files is important in some packages
3192 # where .texi files are built at make time, probably using
3193 # other binaries built in the package itself, maybe using
3194 # tools or information found on the build host. Because
3195 # these files are not distributed they are always rebuilt
3196 # at make time; they should therefore not lie in the source
3197 # directory. One plan was to support this using
3198 # nodist_info_TEXINFOS or something similar. (Doing this
3199 # requires some sanity checks. For instance Automake should
3200 # not allow:
3201 # dist_info_TEXINFOS = foo.texi
3202 # nodist_foo_TEXINFOS = included.texi
3203 # because a distributed file should never depend on a
3204 # non-distributed file.)
3205 #
3206 # * If .texi files are not distributed, then .info files should
3207 # not be distributed either. There are also cases where one
3208 # wants to distribute .texi files, but does not want to
3209 # distribute the .info files. For instance the Texinfo package
3210 # distributes the tool used to build these files; it would
3211 # be a waste of space to distribute them. It's not clear
3212 # which syntax we should use to indicate that .info files should
3213 # not be distributed. Akim Demaille suggested that eventually
3214 # we switch to a new syntax:
3215 # | Maybe we should take some inspiration from what's already
3216 # | done in the rest of Automake. Maybe there is too much
3217 # | syntactic sugar here, and you want
3218 # | nodist_INFO = bar.info
3219 # | dist_bar_info_SOURCES = bar.texi
3220 # | bar_texi_DEPENDENCIES = foo.texi
3221 # | with a bit of magic to have bar.info represent the whole
3222 # | bar*info set. That's a lot more verbose that the current
3223 # | situation, but it is # not new, hence the user has less
3224 # | to learn.
3225 # |
3226 # | But there is still too much room for meaningless specs:
3227 # | nodist_INFO = bar.info
3228 # | dist_bar_info_SOURCES = bar.texi
3229 # | dist_PS = bar.ps something-written-by-hand.ps
3230 # | nodist_bar_ps_SOURCES = bar.texi
3231 # | bar_texi_DEPENDENCIES = foo.texi
3232 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3233 #
3234 # Back to the point, it should be clear that in order to support
3235 # non-distributed .info files, we need to build them in the
3236 # build tree, not in the source tree (non-distributed .texi
3237 # files are less of a problem, because we do not output build
3238 # rules for them). In Automake 1.7 .info build rules have been
3239 # largely cleaned up so that .info files get always build in the
3240 # build tree, even when distributed. The idea was that
3241 # (1) if during a VPATH build the .info file was found to be
3242 # absent or out-of-date (in the source tree or in the
3243 # build tree), Make would rebuild it in the build tree.
3244 # If an up-to-date source-tree of the .info file existed,
3245 # make would not rebuild it in the build tree.
3246 # (2) having two copies of .info files, one in the source tree
3247 # and one (newer) in the build tree is not a problem
3248 # because 'make dist' always pick files in the build tree
3249 # first.
3250 # However it turned out the be a bad idea for several reasons:
3251 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3252 # like GNU Make on point (1) above. These implementations
3253 # of Make would always rebuild .info files in the build
3254 # tree, even if such files were up to date in the source
3255 # tree. Consequently, it was impossible to perform a VPATH
3256 # build of a package containing Texinfo files using these
3257 # Make implementations.
3258 # (Refer to the Autoconf Manual, section "Limitation of
3259 # Make", paragraph "VPATH", item "target lookup", for
3260 # an account of the differences between these
3261 # implementations.)
3262 # * The GNU Coding Standards require these files to be built
3263 # in the source-tree (when they are distributed, that is).
3264 # * Keeping a fresher copy of distributed files in the
3265 # build tree can be annoying during development because
3266 # - if the files is kept under CVS, you really want it
3267 # to be updated in the source tree
3268 # - it is confusing that 'make distclean' does not erase
3269 # all files in the build tree.
3270 #
3271 # Consequently, starting with Automake 1.8, .info files are
3272 # built in the source tree again. Because we still plan to
3273 # support non-distributed .info files at some point, we
3274 # have a single variable ($INSRC) that controls whether
3275 # the current .info file must be built in the source tree
3276 # or in the build tree. Actually this variable is switched
3277 # off for .info files that appear to be cleaned; this is
3278 # for backward compatibility with package such as Texinfo,
3279 # which do things like
3280 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3281 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3282 # # Do not create info files for distribution.
3283 # dist-info:
3284 # in order not to distribute .info files.
3285 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3287 my $soutdir = '$(srcdir)/' . $outdir;
3288 $outdir = $soutdir if $insrc;
3290 # If user specified file_TEXINFOS, then use that as explicit
3291 # dependency list.
3292 @texi_deps = ();
3293 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3295 my $canonical = canonicalize ($infobase);
3296 if (var ($canonical . "_TEXINFOS"))
3297 {
3298 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3299 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3300 }
3302 my ($dirstamp, @cfiles) =
3303 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3304 push (@texi_cleans, @cfiles);
3306 push (@info_deps_list, $out_file);
3308 # If a vers*.texi file is needed, emit the rule.
3309 if ($vtexi)
3310 {
3311 err_am ("'$vtexi', included in '$texi', "
3312 . "also included in '$versions{$vtexi}'")
3313 if defined $versions{$vtexi};
3314 $versions{$vtexi} = $texi;
3316 # We number the stamp-vti files. This is doable since the
3317 # actual names don't matter much. We only number starting
3318 # with the second one, so that the common case looks nice.
3319 my $vti = ($done ? $done : 'vti');
3320 ++$done;
3322 # This is ugly, but it is our historical practice.
3323 if ($config_aux_dir_set_in_configure_ac)
3324 {
3325 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3326 'mdate-sh');
3327 }
3328 else
3329 {
3330 require_file_with_macro (TRUE, 'info_TEXINFOS',
3331 FOREIGN, 'mdate-sh');
3332 }
3334 my $conf_dir;
3335 if ($config_aux_dir_set_in_configure_ac)
3336 {
3337 $conf_dir = "$am_config_aux_dir/";
3338 }
3339 else
3340 {
3341 $conf_dir = '$(srcdir)/';
3342 }
3343 $output_rules .= file_contents ('texi-vers',
3344 new Automake::Location,
3345 TEXI => $texi,
3346 VTI => $vti,
3347 STAMPVTI => "${soutdir}stamp-$vti",
3348 VTEXI => "$soutdir$vtexi",
3349 MDDIR => $conf_dir,
3350 DIRSTAMP => $dirstamp);
3351 }
3352 }
3354 # Handle location of texinfo.tex.
3355 my $need_texi_file = 0;
3356 my $texinfodir;
3357 if (var ('TEXINFO_TEX'))
3358 {
3359 # The user defined TEXINFO_TEX so assume he knows what he is
3360 # doing.
3361 $texinfodir = ('$(srcdir)/'
3362 . dirname (variable_value ('TEXINFO_TEX')));
3363 }
3364 elsif ($config_aux_dir_set_in_configure_ac)
3365 {
3366 $texinfodir = $am_config_aux_dir;
3367 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3368 $need_texi_file = 2; # so that we require_conf_file later
3369 }
3370 else
3371 {
3372 $texinfodir = '$(srcdir)';
3373 $need_texi_file = 1;
3374 }
3375 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3377 push (@dist_targets, 'dist-info');
3379 if (! option 'no-installinfo')
3380 {
3381 # Make sure documentation is made and installed first. Use
3382 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3383 # get run twice during "make all".
3384 unshift (@all, '$(INFO_DEPS)');
3385 }
3387 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3388 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3389 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3390 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3392 # This next isn't strictly needed now -- the places that look here
3393 # could easily be changed to look in info_TEXINFOS. But this is
3394 # probably better, in case noinst_TEXINFOS is ever supported.
3395 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3397 # Do some error checking. Note that this file is not required
3398 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3399 # up above.
3400 if ($need_texi_file && ! option 'no-texinfo.tex')
3401 {
3402 if ($need_texi_file > 1)
3403 {
3404 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3405 'texinfo.tex');
3406 }
3407 else
3408 {
3409 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3410 'texinfo.tex');
3411 }
3412 }
3414 return (makefile_wrap ("", "\t ", @mostly_cleans),
3415 makefile_wrap ("", "\t ", @texi_cleans),
3416 makefile_wrap ("", "\t ", @maint_cleans));
3417 }
3420 # handle_texinfo ()
3421 # -----------------
3422 # Handle all Texinfo source.
3423 sub handle_texinfo ()
3424 {
3425 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3426 # FIXME: I think this is an obsolete future feature name.
3427 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3429 my $info_texinfos = var ('info_TEXINFOS');
3430 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3431 if ($info_texinfos)
3432 {
3433 define_verbose_texinfo;
3434 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3435 chomp $mostlyclean;
3436 chomp $clean;
3437 chomp $maintclean;
3438 }
3440 $output_rules .= file_contents ('texinfos',
3441 new Automake::Location,
3442 AM_V_DVIPS => verbose_flag('DVIPS'),
3443 MOSTLYCLEAN => $mostlyclean,
3444 TEXICLEAN => $clean,
3445 MAINTCLEAN => $maintclean,
3446 'LOCAL-TEXIS' => !!$info_texinfos,
3447 TEXIQUIET => verbose_flag('texinfo'));
3448 }
3451 # Handle any man pages.
3452 sub handle_man_pages
3453 {
3454 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3456 # Find all the sections in use. We do this by first looking for
3457 # "standard" sections, and then looking for any additional
3458 # sections used in man_MANS.
3459 my (%sections, %notrans_sections, %trans_sections,
3460 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3461 # We handle nodist_ for uniformity. man pages aren't distributed
3462 # by default so it isn't actually very important.
3463 foreach my $npfx ('', 'notrans_')
3464 {
3465 foreach my $pfx ('', 'dist_', 'nodist_')
3466 {
3467 # Add more sections as needed.
3468 foreach my $section ('0'..'9', 'n', 'l')
3469 {
3470 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3471 if (var ($varname))
3472 {
3473 $sections{$section} = 1;
3474 $varname = '$(' . $varname . ')';
3475 if ($npfx eq 'notrans_')
3476 {
3477 $notrans_sections{$section} = 1;
3478 $notrans_sect_vars{$varname} = 1;
3479 }
3480 else
3481 {
3482 $trans_sections{$section} = 1;
3483 $trans_sect_vars{$varname} = 1;
3484 }
3486 &push_dist_common ($varname)
3487 if $pfx eq 'dist_';
3488 }
3489 }
3491 my $varname = $npfx . $pfx . 'man_MANS';
3492 my $var = var ($varname);
3493 if ($var)
3494 {
3495 foreach ($var->value_as_list_recursive)
3496 {
3497 # A page like 'foo.1c' goes into man1dir.
3498 if (/\.([0-9a-z])([a-z]*)$/)
3499 {
3500 $sections{$1} = 1;
3501 if ($npfx eq 'notrans_')
3502 {
3503 $notrans_sections{$1} = 1;
3504 }
3505 else
3506 {
3507 $trans_sections{$1} = 1;
3508 }
3509 }
3510 }
3512 $varname = '$(' . $varname . ')';
3513 if ($npfx eq 'notrans_')
3514 {
3515 $notrans_vars{$varname} = 1;
3516 }
3517 else
3518 {
3519 $trans_vars{$varname} = 1;
3520 }
3521 &push_dist_common ($varname)
3522 if $pfx eq 'dist_';
3523 }
3524 }
3525 }
3527 return unless %sections;
3529 my @unsorted_deps;
3531 # Build section independent variables.
3532 my $have_notrans = %notrans_vars;
3533 my @notrans_list = sort keys %notrans_vars;
3534 my $have_trans = %trans_vars;
3535 my @trans_list = sort keys %trans_vars;
3537 # Now for each section, generate an install and uninstall rule.
3538 # Sort sections so output is deterministic.
3539 foreach my $section (sort keys %sections)
3540 {
3541 # Build section dependent variables.
3542 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3543 my $trans_mans = $have_trans || exists $trans_sections{$section};
3544 my (%notrans_this_sect, %trans_this_sect);
3545 my $expr = 'man' . $section . '_MANS';
3546 foreach my $varname (keys %notrans_sect_vars)
3547 {
3548 if ($varname =~ /$expr/)
3549 {
3550 $notrans_this_sect{$varname} = 1;
3551 }
3552 }
3553 foreach my $varname (keys %trans_sect_vars)
3554 {
3555 if ($varname =~ /$expr/)
3556 {
3557 $trans_this_sect{$varname} = 1;
3558 }
3559 }
3560 my @notrans_sect_list = sort keys %notrans_this_sect;
3561 my @trans_sect_list = sort keys %trans_this_sect;
3562 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3563 keys %notrans_this_sect, keys %trans_this_sect);
3564 my @deps = sort @unsorted_deps;
3565 $output_rules .= &file_contents ('mans',
3566 new Automake::Location,
3567 SECTION => $section,
3568 DEPS => "@deps",
3569 NOTRANS_MANS => $notrans_mans,
3570 NOTRANS_SECT_LIST => "@notrans_sect_list",
3571 HAVE_NOTRANS => $have_notrans,
3572 NOTRANS_LIST => "@notrans_list",
3573 TRANS_MANS => $trans_mans,
3574 TRANS_SECT_LIST => "@trans_sect_list",
3575 HAVE_TRANS => $have_trans,
3576 TRANS_LIST => "@trans_list");
3577 }
3579 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3580 keys %notrans_sect_vars, keys %trans_sect_vars);
3581 my @mans = sort @unsorted_deps;
3582 $output_vars .= file_contents ('mans-vars',
3583 new Automake::Location,
3584 MANS => "@mans");
3586 push (@all, '$(MANS)')
3587 unless option 'no-installman';
3588 }
3590 # Handle DATA variables.
3591 sub handle_data
3592 {
3593 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3594 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3595 'ps', 'sysconf', 'sharedstate', 'localstate',
3596 'pkgdata', 'lisp', 'noinst', 'check');
3597 }
3599 # Handle TAGS.
3600 sub handle_tags
3601 {
3602 my @config;
3603 foreach my $spec (@config_headers)
3604 {
3605 my ($out, @ins) = split_config_file_spec ($spec);
3606 foreach my $in (@ins)
3607 {
3608 # If the config header source is in this directory,
3609 # require it.
3610 push @config, basename ($in)
3611 if $relative_dir eq dirname ($in);
3612 }
3613 }
3615 define_variable ('am__tagged_files',
3616 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3617 . "@config", INTERNAL);
3619 if (rvar('am__tagged_files')->value_as_list_recursive
3620 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3621 {
3622 $output_rules .= &file_contents ('tags', new Automake::Location);
3623 set_seen 'TAGS_DEPENDENCIES';
3624 }
3625 else
3626 {
3627 reject_var ('TAGS_DEPENDENCIES',
3628 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3629 . " without\nsources or 'ETAGS_ARGS'");
3630 # Every Makefile must define some sort of TAGS rule.
3631 # Otherwise, it would be possible for a top-level "make TAGS"
3632 # to fail because some subdirectory failed. Ditto ctags and
3633 # cscope.
3634 $output_rules .=
3635 "tags TAGS:\n\n" .
3636 "ctags CTAGS:\n\n" .
3637 "cscope cscopelist:\n\n";
3638 }
3639 }
3642 # user_phony_rule ($NAME)
3643 # -----------------------
3644 # Return false if rule $NAME does not exist. Otherwise,
3645 # declare it as phony, complete its definition (in case it is
3646 # conditional), and return its Automake::Rule instance.
3647 sub user_phony_rule ($)
3648 {
3649 my ($name) = @_;
3650 my $rule = rule $name;
3651 if ($rule)
3652 {
3653 depend ('.PHONY', $name);
3654 # Define $NAME in all condition where it is not already defined,
3655 # so that it is always OK to depend on $NAME.
3656 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3657 {
3658 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3659 $c, INTERNAL);
3660 $output_rules .= $c->subst_string . "$name:\n";
3661 }
3662 }
3663 return $rule;
3664 }
3667 # handle_dist
3668 # -----------
3669 # Handle 'dist' target.
3670 sub handle_dist ()
3671 {
3672 # Substitutions for distdir.am
3673 my %transform;
3675 # Define DIST_SUBDIRS. This must always be done, regardless of the
3676 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3677 my $subdirs = var ('SUBDIRS');
3678 if ($subdirs)
3679 {
3680 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3681 # to all possible directories, and use it. If DIST_SUBDIRS is
3682 # defined, just use it.
3684 # Note that we check DIST_SUBDIRS first on purpose, so that
3685 # we don't call has_conditional_contents for now reason.
3686 # (In the past one project used so many conditional subdirectories
3687 # that calling has_conditional_contents on SUBDIRS caused
3688 # automake to grow to 150Mb -- this should not happen with
3689 # the current implementation of has_conditional_contents,
3690 # but it's more efficient to avoid the call anyway.)
3691 if (var ('DIST_SUBDIRS'))
3692 {
3693 }
3694 elsif ($subdirs->has_conditional_contents)
3695 {
3696 define_pretty_variable
3697 ('DIST_SUBDIRS', TRUE, INTERNAL,
3698 uniq ($subdirs->value_as_list_recursive));
3699 }
3700 else
3701 {
3702 # We always define this because that is what 'distclean'
3703 # wants.
3704 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3705 '$(SUBDIRS)');
3706 }
3707 }
3709 # The remaining definitions are only required when a dist target is used.
3710 return if option 'no-dist';
3712 # At least one of the archive formats must be enabled.
3713 if ($relative_dir eq '.')
3714 {
3715 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3716 $archive_defined ||=
3717 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz);
3718 error (option 'no-dist-gzip',
3719 "no-dist-gzip specified but no dist-* specified,\n"
3720 . "at least one archive format must be enabled")
3721 unless $archive_defined;
3722 }
3724 # Look for common files that should be included in distribution.
3725 # If the aux dir is set, and it does not have a Makefile.am, then
3726 # we check for these files there as well.
3727 my $check_aux = 0;
3728 if ($relative_dir eq '.'
3729 && $config_aux_dir_set_in_configure_ac)
3730 {
3731 if (! &is_make_dir ($config_aux_dir))
3732 {
3733 $check_aux = 1;
3734 }
3735 }
3736 foreach my $cfile (@common_files)
3737 {
3738 if (dir_has_case_matching_file ($relative_dir, $cfile)
3739 # The file might be absent, but if it can be built it's ok.
3740 || rule $cfile)
3741 {
3742 &push_dist_common ($cfile);
3743 }
3745 # Don't use 'elsif' here because a file might meaningfully
3746 # appear in both directories.
3747 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3748 {
3749 &push_dist_common ("$config_aux_dir/$cfile")
3750 }
3751 }
3753 # We might copy elements from $configure_dist_common to
3754 # %dist_common if we think we need to. If the file appears in our
3755 # directory, we would have discovered it already, so we don't
3756 # check that. But if the file is in a subdir without a Makefile,
3757 # we want to distribute it here if we are doing '.'. Ugly!
3758 # Also, in some corner cases, it's possible that the following code
3759 # will cause the same file to appear in the $(DIST_COMMON) variables
3760 # of two distinct Makefiles; but this is not a problem, since the
3761 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3762 # file being distributed multiple times.
3763 # See also automake bug#9651.
3764 if ($relative_dir eq '.')
3765 {
3766 foreach my $file (split (' ' , $configure_dist_common))
3767 {
3768 my $dir = dirname ($file);
3769 push_dist_common ($file)
3770 if ($dir eq '.' || ! is_make_dir ($dir));
3771 }
3772 }
3774 # Files to distributed. Don't use ->value_as_list_recursive
3775 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3776 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3777 @dist_common = uniq @dist_common;
3778 variable_delete 'DIST_COMMON';
3779 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3781 # Now that we've processed DIST_COMMON, disallow further attempts
3782 # to set it.
3783 $handle_dist_run = 1;
3785 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3786 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3788 # If the target 'dist-hook' exists, make sure it is run. This
3789 # allows users to do random weird things to the distribution
3790 # before it is packaged up.
3791 push (@dist_targets, 'dist-hook')
3792 if user_phony_rule 'dist-hook';
3793 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3795 my $flm = option ('filename-length-max');
3796 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3798 $output_rules .= &file_contents ('distdir',
3799 new Automake::Location,
3800 %transform,
3801 FILENAME_FILTER => $filename_filter);
3802 }
3805 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3806 # -------------------------------------------------------
3807 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3808 # name. Use $WHERE as a location in the diagnostic, if any.
3809 sub check_directory ($$;$)
3810 {
3811 my ($dir, $where, $reldir) = @_;
3812 $reldir = '.' unless defined $reldir;
3814 error $where, "required directory $reldir/$dir does not exist"
3815 unless -d "$reldir/$dir";
3817 # If an 'obj/' directory exists, BSD make will enter it before
3818 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3819 # will not be read.
3820 #
3821 # % cat Makefile
3822 # all:
3823 # echo Hello
3824 # % cat obj/Makefile
3825 # all:
3826 # echo World
3827 # % make # GNU make
3828 # echo Hello
3829 # Hello
3830 # % pmake # BSD make
3831 # echo World
3832 # World
3833 msg ('portability', $where,
3834 "naming a subdirectory 'obj' causes troubles with BSD make")
3835 if $dir eq 'obj';
3837 # 'aux' is probably the most important of the following forbidden name,
3838 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3839 msg ('portability', $where,
3840 "name '$dir' is reserved on W32 and DOS platforms")
3841 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3842 }
3844 # check_directories_in_var ($VARIABLE)
3845 # ------------------------------------
3846 # Recursively check all items in variables $VARIABLE as directories
3847 sub check_directories_in_var ($)
3848 {
3849 my ($var) = @_;
3850 $var->traverse_recursively
3851 (sub
3852 {
3853 my ($var, $val, $cond, $full_cond) = @_;
3854 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3855 return ();
3856 },
3857 undef,
3858 skip_ac_subst => 1);
3859 }
3861 # &handle_subdirs ()
3862 # ------------------
3863 # Handle subdirectories.
3864 sub handle_subdirs ()
3865 {
3866 my $subdirs = var ('SUBDIRS');
3867 return
3868 unless $subdirs;
3870 check_directories_in_var $subdirs;
3872 my $dsubdirs = var ('DIST_SUBDIRS');
3873 check_directories_in_var $dsubdirs
3874 if $dsubdirs;
3876 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3877 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3878 }
3881 # ($REGEN, @DEPENDENCIES)
3882 # &scan_aclocal_m4
3883 # ----------------
3884 # If aclocal.m4 creation is automated, return the list of its dependencies.
3885 sub scan_aclocal_m4 ()
3886 {
3887 my $regen_aclocal = 0;
3889 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3890 set_seen 'CONFIGURE_DEPENDENCIES';
3892 if (-f 'aclocal.m4')
3893 {
3894 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3896 my $aclocal = new Automake::XFile "< aclocal.m4";
3897 my $line = $aclocal->getline;
3898 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3899 }
3901 my @ac_deps = ();
3903 if (set_seen ('ACLOCAL_M4_SOURCES'))
3904 {
3905 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3906 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3907 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
3908 . "It should be safe to simply remove it");
3909 }
3911 # Note that it might be possible that aclocal.m4 doesn't exist but
3912 # should be auto-generated. This case probably isn't very
3913 # important.
3915 return ($regen_aclocal, @ac_deps);
3916 }
3919 # Helper function for substitute_ac_subst_variables.
3920 sub substitute_ac_subst_variables_worker($)
3921 {
3922 my ($token) = @_;
3923 return "\@$token\@" if var $token;
3924 return "\${$token\}";
3925 }
3927 # substitute_ac_subst_variables ($TEXT)
3928 # -------------------------------------
3929 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3930 # variable.
3931 sub substitute_ac_subst_variables ($)
3932 {
3933 my ($text) = @_;
3934 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3935 return $text;
3936 }
3938 # @DEPENDENCIES
3939 # &prepend_srcdir (@INPUTS)
3940 # -------------------------
3941 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3942 # if an input file has a directory part the same as the current
3943 # directory, then the directory part is simply replaced by $(srcdir).
3944 # But if the directory part is different, then $(top_srcdir) is
3945 # prepended.
3946 sub prepend_srcdir (@)
3947 {
3948 my (@inputs) = @_;
3949 my @newinputs;
3951 foreach my $single (@inputs)
3952 {
3953 if (dirname ($single) eq $relative_dir)
3954 {
3955 push (@newinputs, '$(srcdir)/' . basename ($single));
3956 }
3957 else
3958 {
3959 push (@newinputs, '$(top_srcdir)/' . $single);
3960 }
3961 }
3962 return @newinputs;
3963 }
3965 # @DEPENDENCIES
3966 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3967 # ---------------------------------------------------
3968 # Compute a list of dependencies appropriate for the rebuild
3969 # rule of
3970 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3971 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
3972 sub rewrite_inputs_into_dependencies ($@)
3973 {
3974 my ($file, @inputs) = @_;
3975 my @res = ();
3977 for my $i (@inputs)
3978 {
3979 # We cannot create dependencies on shell variables.
3980 next if (substitute_ac_subst_variables $i) =~ /\$/;
3982 if (exists $ac_config_files_location{$i} && $i ne $file)
3983 {
3984 my $di = dirname $i;
3985 if ($di eq $relative_dir)
3986 {
3987 $i = basename $i;
3988 }
3989 # In the top-level Makefile we do not use $(top_builddir), because
3990 # we are already there, and since the targets are built without
3991 # a $(top_builddir), it helps BSD Make to match them with
3992 # dependencies.
3993 elsif ($relative_dir ne '.')
3994 {
3995 $i = '$(top_builddir)/' . $i;
3996 }
3997 }
3998 else
3999 {
4000 msg ('error', $ac_config_files_location{$file},
4001 "required file '$i' not found")
4002 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4003 ($i) = prepend_srcdir ($i);
4004 push_dist_common ($i);
4005 }
4006 push @res, $i;
4007 }
4008 return @res;
4009 }
4013 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4014 # ------------------------------------------------------------------
4015 # Handle remaking and configure stuff.
4016 # We need the name of the input file, to do proper remaking rules.
4017 sub handle_configure ($$$@)
4018 {
4019 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4021 prog_error 'empty @inputs'
4022 unless @inputs;
4024 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4025 $makefile_in);
4026 my $rel_makefile = basename $makefile;
4028 my $colon_infile = ':' . join (':', @inputs);
4029 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4030 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4031 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4032 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4033 @configure_deps, @aclocal_m4_deps,
4034 '$(top_srcdir)/' . $configure_ac);
4035 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4036 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4037 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4038 @configuredeps);
4040 my $automake_options = '--' . $strictness_name .
4041 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4043 $output_rules .= file_contents
4044 ('configure',
4045 new Automake::Location,
4046 MAKEFILE => $rel_makefile,
4047 'MAKEFILE-DEPS' => "@rewritten",
4048 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4049 'MAKEFILE-IN' => $rel_makefile_in,
4050 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4051 'MAKEFILE-IN-DEPS' => "@include_stack",
4052 'MAKEFILE-AM' => $rel_makefile_am,
4053 'AUTOMAKE-OPTIONS' => $automake_options,
4054 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4055 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4056 VERBOSE => verbose_flag ('GEN'));
4058 if ($relative_dir eq '.')
4059 {
4060 &push_dist_common ('acconfig.h')
4061 if -f 'acconfig.h';
4062 }
4064 # If we have a configure header, require it.
4065 my $hdr_index = 0;
4066 my @distclean_config;
4067 foreach my $spec (@config_headers)
4068 {
4069 $hdr_index += 1;
4070 # $CONFIG_H_PATH: config.h from top level.
4071 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4072 my $config_h_dir = dirname ($config_h_path);
4074 # If the header is in the current directory we want to build
4075 # the header here. Otherwise, if we're at the topmost
4076 # directory and the header's directory doesn't have a
4077 # Makefile, then we also want to build the header.
4078 if ($relative_dir eq $config_h_dir
4079 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4080 {
4081 my ($cn_sans_dir, $stamp_dir);
4082 if ($relative_dir eq $config_h_dir)
4083 {
4084 $cn_sans_dir = basename ($config_h_path);
4085 $stamp_dir = '';
4086 }
4087 else
4088 {
4089 $cn_sans_dir = $config_h_path;
4090 if ($config_h_dir eq '.')
4091 {
4092 $stamp_dir = '';
4093 }
4094 else
4095 {
4096 $stamp_dir = $config_h_dir . '/';
4097 }
4098 }
4100 # This will also distribute all inputs.
4101 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4103 # Cannot define rebuild rules for filenames with shell variables.
4104 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4106 # Header defined in this directory.
4107 my @files;
4108 if (-f $config_h_path . '.top')
4109 {
4110 push (@files, "$cn_sans_dir.top");
4111 }
4112 if (-f $config_h_path . '.bot')
4113 {
4114 push (@files, "$cn_sans_dir.bot");
4115 }
4117 push_dist_common (@files);
4119 # For now, acconfig.h can only appear in the top srcdir.
4120 if (-f 'acconfig.h')
4121 {
4122 push (@files, '$(top_srcdir)/acconfig.h');
4123 }
4125 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4126 $output_rules .=
4127 file_contents ('remake-hdr',
4128 new Automake::Location,
4129 FILES => "@files",
4130 'FIRST-HDR' => ($hdr_index == 1),
4131 CONFIG_H => $cn_sans_dir,
4132 CONFIG_HIN => $ins[0],
4133 CONFIG_H_DEPS => "@ins",
4134 CONFIG_H_PATH => $config_h_path,
4135 STAMP => "$stamp");
4137 push @distclean_config, $cn_sans_dir, $stamp;
4138 }
4139 }
4141 $output_rules .= file_contents ('clean-hdr',
4142 new Automake::Location,
4143 FILES => "@distclean_config")
4144 if @distclean_config;
4146 # Distribute and define mkinstalldirs only if it is already present
4147 # in the package, for backward compatibility (some people may still
4148 # use $(mkinstalldirs)).
4149 # TODO: start warning about this in Automake 1.13.2, and have
4150 # TODO: Automake 1.14 or 1.15 drop it (and the mkinstalldirs script
4151 # TODO: as well).
4152 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4153 if (-f $mkidpath)
4154 {
4155 # Use require_file so that any existing script gets updated
4156 # by --force-missing.
4157 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4158 define_variable ('mkinstalldirs',
4159 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4160 }
4161 else
4162 {
4163 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4164 # at least one argument, and $(mkinstalldirs) used to work
4165 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4166 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4167 }
4169 reject_var ('CONFIG_HEADER',
4170 "'CONFIG_HEADER' is an anachronism; now determined "
4171 . "automatically\nfrom '$configure_ac'");
4173 my @config_h;
4174 foreach my $spec (@config_headers)
4175 {
4176 my ($out, @ins) = split_config_file_spec ($spec);
4177 # Generate CONFIG_HEADER define.
4178 if ($relative_dir eq dirname ($out))
4179 {
4180 push @config_h, basename ($out);
4181 }
4182 else
4183 {
4184 push @config_h, "\$(top_builddir)/$out";
4185 }
4186 }
4187 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4188 if @config_h;
4190 # Now look for other files in this directory which must be remade
4191 # by config.status, and generate rules for them.
4192 my @actual_other_files = ();
4193 # These get cleaned only in a VPATH build.
4194 my @actual_other_vpath_files = ();
4195 foreach my $lfile (@other_input_files)
4196 {
4197 my $file;
4198 my @inputs;
4199 if ($lfile =~ /^([^:]*):(.*)$/)
4200 {
4201 # This is the ":" syntax of AC_OUTPUT.
4202 $file = $1;
4203 @inputs = split (':', $2);
4204 }
4205 else
4206 {
4207 # Normal usage.
4208 $file = $lfile;
4209 @inputs = $file . '.in';
4210 }
4212 # Automake files should not be stored in here, but in %MAKE_LIST.
4213 prog_error ("$lfile in \@other_input_files\n"
4214 . "\@other_input_files = (@other_input_files)")
4215 if -f $file . '.am';
4217 my $local = basename ($file);
4219 # We skip files that aren't in this directory. However, if
4220 # the file's directory does not have a Makefile, and we are
4221 # currently doing '.', then we create a rule to rebuild the
4222 # file in the subdir.
4223 my $fd = dirname ($file);
4224 if ($fd ne $relative_dir)
4225 {
4226 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4227 {
4228 $local = $file;
4229 }
4230 else
4231 {
4232 next;
4233 }
4234 }
4236 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4238 # Cannot output rules for shell variables.
4239 next if (substitute_ac_subst_variables $local) =~ /\$/;
4241 my $condstr = '';
4242 my $cond = $ac_config_files_condition{$lfile};
4243 if (defined $cond)
4244 {
4245 $condstr = $cond->subst_string;
4246 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4247 $ac_config_files_location{$file});
4248 }
4249 $output_rules .= ($condstr . $local . ': '
4250 . '$(top_builddir)/config.status '
4251 . "@rewritten_inputs\n"
4252 . $condstr . "\t"
4253 . 'cd $(top_builddir) && '
4254 . '$(SHELL) ./config.status '
4255 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4256 . '$@'
4257 . "\n");
4258 push (@actual_other_files, $local);
4259 }
4261 # For links we should clean destinations and distribute sources.
4262 foreach my $spec (@config_links)
4263 {
4264 my ($link, $file) = split /:/, $spec;
4265 # Some people do AC_CONFIG_LINKS($computed). We only handle
4266 # the DEST:SRC form.
4267 next unless $file;
4268 my $where = $ac_config_files_location{$link};
4270 # Skip destinations that contain shell variables.
4271 if ((substitute_ac_subst_variables $link) !~ /\$/)
4272 {
4273 # We skip links that aren't in this directory. However, if
4274 # the link's directory does not have a Makefile, and we are
4275 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4276 # in '.'s Makefile.in.
4277 my $local = basename ($link);
4278 my $fd = dirname ($link);
4279 if ($fd ne $relative_dir)
4280 {
4281 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4282 {
4283 $local = $link;
4284 }
4285 else
4286 {
4287 $local = undef;
4288 }
4289 }
4290 if ($file ne $link)
4291 {
4292 push @actual_other_files, $local if $local;
4293 }
4294 else
4295 {
4296 push @actual_other_vpath_files, $local if $local;
4297 }
4298 }
4300 # Do not process sources that contain shell variables.
4301 if ((substitute_ac_subst_variables $file) !~ /\$/)
4302 {
4303 my $fd = dirname ($file);
4305 # We distribute files that are in this directory.
4306 # At the top-level ('.') we also distribute files whose
4307 # directory does not have a Makefile.
4308 if (($fd eq $relative_dir)
4309 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4310 {
4311 # The following will distribute $file as a side-effect when
4312 # it is appropriate (i.e., when $file is not already an output).
4313 # We do not need the result, just the side-effect.
4314 rewrite_inputs_into_dependencies ($link, $file);
4315 }
4316 }
4317 }
4319 # These files get removed by "make distclean".
4320 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4321 @actual_other_files);
4322 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4323 @actual_other_vpath_files);
4324 }
4326 # Handle C headers.
4327 sub handle_headers
4328 {
4329 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4330 'oldinclude', 'pkginclude',
4331 'noinst', 'check');
4332 foreach (@r)
4333 {
4334 next unless $_->[1] =~ /\..*$/;
4335 &saw_extension ($&);
4336 }
4337 }
4339 sub handle_gettext
4340 {
4341 return if ! $seen_gettext || $relative_dir ne '.';
4343 my $subdirs = var 'SUBDIRS';
4345 if (! $subdirs)
4346 {
4347 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4348 return;
4349 }
4351 # Perform some sanity checks to help users get the right setup.
4352 # We disable these tests when po/ doesn't exist in order not to disallow
4353 # unusual gettext setups.
4354 #
4355 # Bruno Haible:
4356 # | The idea is:
4357 # |
4358 # | 1) If a package doesn't have a directory po/ at top level, it
4359 # | will likely have multiple po/ directories in subpackages.
4360 # |
4361 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4362 # | is used without 'external'. It is also useful to warn for the
4363 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4364 # | warnings apply only to the usual layout of packages, therefore
4365 # | they should both be disabled if no po/ directory is found at
4366 # | top level.
4368 if (-d 'po')
4369 {
4370 my @subdirs = $subdirs->value_as_list_recursive;
4372 msg_var ('syntax', $subdirs,
4373 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4374 if ! grep ($_ eq 'po', @subdirs);
4376 # intl/ is not required when AM_GNU_GETTEXT is called with the
4377 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4378 msg_var ('syntax', $subdirs,
4379 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4380 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4381 && ! grep ($_ eq 'intl', @subdirs));
4383 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4384 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4385 msg_var ('syntax', $subdirs,
4386 "'intl' should not be in SUBDIRS when "
4387 . "AM_GNU_GETTEXT([external]) is used")
4388 if ($seen_gettext_external && ! $seen_gettext_intl
4389 && grep ($_ eq 'intl', @subdirs));
4390 }
4392 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4393 }
4395 # Handle footer elements.
4396 sub handle_footer
4397 {
4398 reject_rule ('.SUFFIXES',
4399 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4401 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4402 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4403 # anything else, by sticking it right after the default: target.
4404 $output_header .= ".SUFFIXES:\n";
4405 my $suffixes = var 'SUFFIXES';
4406 my @suffixes = Automake::Rule::suffixes;
4407 if (@suffixes || $suffixes)
4408 {
4409 # Make sure SUFFIXES has unique elements. Sort them to ensure
4410 # the output remains consistent. However, $(SUFFIXES) is
4411 # always at the start of the list, unsorted. This is done
4412 # because make will choose rules depending on the ordering of
4413 # suffixes, and this lets the user have some control. Push
4414 # actual suffixes, and not $(SUFFIXES). Some versions of make
4415 # do not like variable substitutions on the .SUFFIXES line.
4416 my @user_suffixes = ($suffixes
4417 ? $suffixes->value_as_list_recursive : ());
4419 my %suffixes = map { $_ => 1 } @suffixes;
4420 delete @suffixes{@user_suffixes};
4422 $output_header .= (".SUFFIXES: "
4423 . join (' ', @user_suffixes, sort keys %suffixes)
4424 . "\n");
4425 }
4427 $output_trailer .= file_contents ('footer', new Automake::Location);
4428 }
4431 # Generate 'make install' rules.
4432 sub handle_install ()
4433 {
4434 $output_rules .= &file_contents
4435 ('install',
4436 new Automake::Location,
4437 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4438 ? (" \$(BUILT_SOURCES)\n"
4439 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4440 : ''),
4441 'installdirs-local' => (user_phony_rule 'installdirs-local'
4442 ? ' installdirs-local' : ''),
4443 am__installdirs => variable_value ('am__installdirs') || '');
4444 }
4447 # Deal with all and all-am.
4448 sub handle_all ($)
4449 {
4450 my ($makefile) = @_;
4452 # Output 'all-am'.
4454 # Put this at the beginning for the sake of non-GNU makes. This
4455 # is still wrong if these makes can run parallel jobs. But it is
4456 # right enough.
4457 unshift (@all, basename ($makefile));
4459 foreach my $spec (@config_headers)
4460 {
4461 my ($out, @ins) = split_config_file_spec ($spec);
4462 push (@all, basename ($out))
4463 if dirname ($out) eq $relative_dir;
4464 }
4466 # Install 'all' hooks.
4467 push (@all, "all-local")
4468 if user_phony_rule "all-local";
4470 &pretty_print_rule ("all-am:", "\t\t", @all);
4471 &depend ('.PHONY', 'all-am', 'all');
4474 # Output 'all'.
4476 my @local_headers = ();
4477 push @local_headers, '$(BUILT_SOURCES)'
4478 if var ('BUILT_SOURCES');
4479 foreach my $spec (@config_headers)
4480 {
4481 my ($out, @ins) = split_config_file_spec ($spec);
4482 push @local_headers, basename ($out)
4483 if dirname ($out) eq $relative_dir;
4484 }
4486 if (@local_headers)
4487 {
4488 # We need to make sure config.h is built before we recurse.
4489 # We also want to make sure that built sources are built
4490 # before any ordinary 'all' targets are run. We can't do this
4491 # by changing the order of dependencies to the "all" because
4492 # that breaks when using parallel makes. Instead we handle
4493 # things explicitly.
4494 $output_all .= ("all: @local_headers"
4495 . "\n\t"
4496 . '$(MAKE) $(AM_MAKEFLAGS) '
4497 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4498 . "\n\n");
4499 depend ('.MAKE', 'all');
4500 }
4501 else
4502 {
4503 $output_all .= "all: " . (var ('SUBDIRS')
4504 ? 'all-recursive' : 'all-am') . "\n\n";
4505 }
4506 }
4508 # Generate helper targets for user recursion, where needed.
4509 sub handle_user_recursion ()
4510 {
4511 return unless @extra_recursive_targets;
4513 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4514 map { "$_-recursive" } @extra_recursive_targets);
4515 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4516 foreach my $target (@extra_recursive_targets)
4517 {
4518 # This allows the default target's rules to be overridden in
4519 # Makefile.am.
4520 user_phony_rule ($target);
4521 depend ("$target", "$target-$aux");
4522 depend ("$target-am", "$target-local");
4523 # Every user-defined recursive target 'foo' *must* have a valid
4524 # associated 'foo-local' rule; we define it as an empty rule by
4525 # default, so that the user can transparently extend it in his
4526 # own Makefile.am.
4527 pretty_print_rule ("$target-local:");
4528 # $target-recursive might as well be undefined, so do not add
4529 # it here; it's taken care of in subdirs.am anyway.
4530 depend (".PHONY", "$target-am", "$target-local");
4531 }
4532 }
4535 # &do_check_merge_target ()
4536 # -------------------------
4537 # Handle check merge target specially.
4538 sub do_check_merge_target ()
4539 {
4540 # Include user-defined local form of target.
4541 push @check_tests, 'check-local'
4542 if user_phony_rule 'check-local';
4544 # The check target must depend on the local equivalent of
4545 # 'all', to ensure all the primary targets are built. Then it
4546 # must build the local check rules.
4547 $output_rules .= "check-am: all-am\n";
4548 if (@check)
4549 {
4550 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4551 depend ('.MAKE', 'check-am');
4552 }
4554 if (@check_tests)
4555 {
4556 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4557 @check_tests);
4558 depend ('.MAKE', 'check-am');
4559 }
4561 depend '.PHONY', 'check', 'check-am';
4562 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4563 $output_rules .= ("check: "
4564 . (var ('BUILT_SOURCES')
4565 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4566 : '')
4567 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4568 . "\n");
4569 depend ('.MAKE', 'check')
4570 if var ('BUILT_SOURCES');
4571 }
4573 # handle_clean ($MAKEFILE)
4574 # ------------------------
4575 # Handle all 'clean' targets.
4576 sub handle_clean ($)
4577 {
4578 my ($makefile) = @_;
4580 # Clean the files listed in user variables if they exist.
4581 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4582 if var ('MOSTLYCLEANFILES');
4583 $clean_files{'$(CLEANFILES)'} = CLEAN
4584 if var ('CLEANFILES');
4585 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4586 if var ('DISTCLEANFILES');
4587 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4588 if var ('MAINTAINERCLEANFILES');
4590 # Built sources are automatically removed by maintainer-clean.
4591 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4592 if var ('BUILT_SOURCES');
4594 # Compute a list of "rm"s to run for each target.
4595 my %rms = (MOSTLY_CLEAN, [],
4596 CLEAN, [],
4597 DIST_CLEAN, [],
4598 MAINTAINER_CLEAN, []);
4600 foreach my $file (keys %clean_files)
4601 {
4602 my $when = $clean_files{$file};
4603 prog_error 'invalid entry in %clean_files'
4604 unless exists $rms{$when};
4606 my $rm = "rm -f $file";
4607 # If file is a variable, make sure when don't call 'rm -f' without args.
4608 $rm ="test -z \"$file\" || $rm"
4609 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4611 push @{$rms{$when}}, "\t-$rm\n";
4612 }
4614 $output_rules .= &file_contents
4615 ('clean',
4616 new Automake::Location,
4617 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4618 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4619 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4620 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4621 MAKEFILE => basename $makefile,
4622 );
4623 }
4626 # &target_cmp ($A, $B)
4627 # --------------------
4628 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4629 # other '.TARGETS' be last.
4630 sub target_cmp
4631 {
4632 return 0 if $a eq $b;
4634 my $a1 = substr ($a, 0, 1);
4635 my $b1 = substr ($b, 0, 1);
4636 if ($a1 ne $b1)
4637 {
4638 return -1 if $b1 eq '.';
4639 return 1 if $a1 eq '.';
4640 }
4641 return $a cmp $b;
4642 }
4645 # &handle_factored_dependencies ()
4646 # --------------------------------
4647 # Handle everything related to gathered targets.
4648 sub handle_factored_dependencies
4649 {
4650 # Reject bad hooks.
4651 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4652 'uninstall-exec-local', 'uninstall-exec-hook',
4653 'uninstall-dvi-local',
4654 'uninstall-html-local',
4655 'uninstall-info-local',
4656 'uninstall-pdf-local',
4657 'uninstall-ps-local')
4658 {
4659 my $x = $utarg;
4660 $x =~ s/-.*-/-/;
4661 reject_rule ($utarg, "use '$x', not '$utarg'");
4662 }
4664 reject_rule ('install-local',
4665 "use 'install-data-local' or 'install-exec-local', "
4666 . "not 'install-local'");
4668 reject_rule ('install-hook',
4669 "use 'install-data-hook' or 'install-exec-hook', "
4670 . "not 'install-hook'");
4672 # Install the -local hooks.
4673 foreach (keys %dependencies)
4674 {
4675 # Hooks are installed on the -am targets.
4676 s/-am$// or next;
4677 depend ("$_-am", "$_-local")
4678 if user_phony_rule "$_-local";
4679 }
4681 # Install the -hook hooks.
4682 # FIXME: Why not be as liberal as we are with -local hooks?
4683 foreach ('install-exec', 'install-data', 'uninstall')
4684 {
4685 if (user_phony_rule "$_-hook")
4686 {
4687 depend ('.MAKE', "$_-am");
4688 register_action("$_-am",
4689 ("\t\@\$(NORMAL_INSTALL)\n"
4690 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4691 }
4692 }
4694 # All the required targets are phony.
4695 depend ('.PHONY', keys %required_targets);
4697 # Actually output gathered targets.
4698 foreach (sort target_cmp keys %dependencies)
4699 {
4700 # If there is nothing about this guy, skip it.
4701 next
4702 unless (@{$dependencies{$_}}
4703 || $actions{$_}
4704 || $required_targets{$_});
4706 # Define gathered targets in undefined conditions.
4707 # FIXME: Right now we must handle .PHONY as an exception,
4708 # because people write things like
4709 # .PHONY: myphonytarget
4710 # to append dependencies. This would not work if Automake
4711 # refrained from defining its own .PHONY target as it does
4712 # with other overridden targets.
4713 # Likewise for '.MAKE'.
4714 my @undefined_conds = (TRUE,);
4715 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4716 {
4717 @undefined_conds =
4718 Automake::Rule::define ($_, 'internal',
4719 RULE_AUTOMAKE, TRUE, INTERNAL);
4720 }
4721 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4722 foreach my $cond (@undefined_conds)
4723 {
4724 my $condstr = $cond->subst_string;
4725 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4726 $output_rules .= $actions{$_} if defined $actions{$_};
4727 $output_rules .= "\n";
4728 }
4729 }
4730 }
4733 # &handle_tests_dejagnu ()
4734 # ------------------------
4735 sub handle_tests_dejagnu
4736 {
4737 push (@check_tests, 'check-DEJAGNU');
4738 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4739 }
4741 sub handle_per_suffix_test
4742 {
4743 my ($test_suffix, %transform) = @_;
4744 my ($pfx, $generic, $am_exeext);
4745 if ($test_suffix eq '')
4746 {
4747 $pfx = '';
4748 $generic = 0;
4749 $am_exeext = 'FALSE';
4750 }
4751 else
4752 {
4753 prog_error ("test suffix '$test_suffix' lacks leading dot")
4754 unless $test_suffix =~ m/^\.(.*)/;
4755 $pfx = uc ($1) . '_';
4756 $generic = 1;
4757 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4758 : 'FALSE';
4759 }
4760 # The "test driver" program, deputed to handle tests protocol used by
4761 # test scripts. By default, it's assumed that no protocol is used, so
4762 # we fall back to the old behaviour, implemented by the 'test-driver'
4763 # auxiliary script.
4764 if (! var "${pfx}LOG_DRIVER")
4765 {
4766 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4767 define_variable ("${pfx}LOG_DRIVER",
4768 "\$(SHELL) $am_config_aux_dir/test-driver",
4769 INTERNAL);
4770 }
4771 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4772 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4773 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4774 my $compile = "${pfx}LOG_COMPILE";
4775 define_variable ($compile,
4776 '$(' . $pfx . 'LOG_COMPILER)'
4777 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4778 . ' $(' . $pfx . 'LOG_FLAGS)',
4779 INTERNAL);
4780 $output_rules .= file_contents ('check2', new Automake::Location,
4781 GENERIC => $generic,
4782 DRIVER => $driver,
4783 DRIVER_FLAGS => $driver_flags,
4784 COMPILE => '$(' . $compile . ')',
4785 EXT => $test_suffix,
4786 am__EXEEXT => $am_exeext,
4787 %transform);
4788 }
4790 # is_valid_test_extension ($EXT)
4791 # ------------------------------
4792 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4793 # otherwise.
4794 sub is_valid_test_extension ($)
4795 {
4796 my $ext = shift;
4797 return 1
4798 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4799 return 1
4800 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4801 return 0;
4802 }
4804 # Handle TESTS variable and other checks.
4805 sub handle_tests
4806 {
4807 if (option 'dejagnu')
4808 {
4809 &handle_tests_dejagnu;
4810 }
4811 else
4812 {
4813 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4814 {
4815 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4816 . "'AUTOMAKE_OPTIONS'");
4817 }
4818 }
4820 if (var ('TESTS'))
4821 {
4822 push (@check_tests, 'check-TESTS');
4823 my $check_deps = "@check";
4824 $output_rules .= &file_contents ('check', new Automake::Location,
4825 SERIAL_TESTS => !! option 'serial-tests',
4826 CHECK_DEPS => $check_deps);
4828 # Tests that are known programs should have $(EXEEXT) appended.
4829 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4830 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4831 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4832 if (var ('XFAIL_TESTS'));
4834 if (! option 'serial-tests')
4835 {
4836 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4837 my $suff = '.test';
4838 my $at_exeext = '';
4839 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4840 if ($handle_exeext)
4841 {
4842 $at_exeext = subst ('EXEEXT');
4843 $suff = $at_exeext . ' ' . $suff;
4844 }
4845 if (! var 'TEST_EXTENSIONS')
4846 {
4847 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4848 }
4849 my $var = var 'TEST_EXTENSIONS';
4850 # Currently, we are not able to deal with conditional contents
4851 # in TEST_EXTENSIONS.
4852 if ($var->has_conditional_contents)
4853 {
4854 msg_var 'unsupported', $var,
4855 "'TEST_EXTENSIONS' cannot have conditional contents";
4856 }
4857 my @test_suffixes = $var->value_as_list_recursive;
4858 if ((my @invalid_test_suffixes =
4859 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4860 {
4861 error $var->rdef (TRUE)->location,
4862 "invalid test extensions: @invalid_test_suffixes";
4863 }
4864 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4865 if ($handle_exeext)
4866 {
4867 unshift (@test_suffixes, $at_exeext)
4868 unless $test_suffixes[0] eq $at_exeext;
4869 }
4870 unshift (@test_suffixes, '');
4872 transform_variable_recursively
4873 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4874 sub {
4875 my ($subvar, $val, $cond, $full_cond) = @_;
4876 my $obj = $val;
4877 return $obj
4878 if $val =~ /^\@.*\@$/;
4879 $obj =~ s/\$\(EXEEXT\)$//o;
4881 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4882 {
4883 msg ('error', $subvar->rdef ($cond)->location,
4884 "using '$1' in TESTS is currently broken: '$val'");
4885 }
4887 foreach my $test_suffix (@test_suffixes)
4888 {
4889 next
4890 if $test_suffix eq $at_exeext || $test_suffix eq '';
4891 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4892 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4893 }
4894 my $base = $obj;
4895 $obj .= '.log';
4896 handle_per_suffix_test ('',
4897 OBJ => $obj,
4898 BASE => $base,
4899 SOURCE => $val);
4900 return $obj;
4901 });
4903 my $nhelper=1;
4904 my $prev = 'TESTS';
4905 my $post = '';
4906 my $last_suffix = $test_suffixes[$#test_suffixes];
4907 my $cur = '';
4908 foreach my $test_suffix (@test_suffixes)
4909 {
4910 if ($test_suffix eq $last_suffix)
4911 {
4912 $cur = 'TEST_LOGS';
4913 }
4914 else
4915 {
4916 $cur = 'am__test_logs' . $nhelper;
4917 }
4918 define_variable ($cur,
4919 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4920 $post = '.log';
4921 $prev = $cur;
4922 $nhelper++;
4923 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4924 {
4925 handle_per_suffix_test ($test_suffix,
4926 OBJ => '',
4927 BASE => '$*',
4928 SOURCE => '$<');
4929 }
4930 }
4931 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4932 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4933 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
4934 }
4935 }
4936 }
4938 # Handle Emacs Lisp.
4939 sub handle_emacs_lisp
4940 {
4941 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4942 'lisp', 'noinst');
4944 return if ! @elfiles;
4946 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4947 map { $_->[1] } @elfiles);
4948 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4949 '$(am__ELFILES:.el=.elc)');
4950 # This one can be overridden by users.
4951 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4953 push @all, '$(ELCFILES)';
4955 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4956 'EMACS', 'lispdir');
4957 }
4959 # Handle Python
4960 sub handle_python
4961 {
4962 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4963 'noinst');
4964 return if ! @pyfiles;
4966 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4967 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4968 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4969 }
4971 # Handle Java.
4972 sub handle_java
4973 {
4974 my @sourcelist = &am_install_var ('-candist',
4975 'java', 'JAVA',
4976 'noinst', 'check');
4977 return if ! @sourcelist;
4979 my @prefixes = am_primary_prefixes ('JAVA', 1,
4980 'noinst', 'check');
4982 my $dir;
4983 my @java_sources = ();
4984 foreach my $prefix (@prefixes)
4985 {
4986 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
4988 next
4989 if $curs eq 'EXTRA';
4991 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
4993 if (defined $dir)
4994 {
4995 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4996 unless $curs eq $dir;
4997 }
4999 $dir = $curs;
5000 }
5002 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5003 "@java_sources");
5005 if ($dir eq 'check')
5006 {
5007 push (@check, "class$dir.stamp");
5008 }
5009 else
5010 {
5011 push (@all, "class$dir.stamp");
5012 }
5013 }
5016 # Handle some of the minor options.
5017 sub handle_minor_options
5018 {
5019 if (option 'readme-alpha')
5020 {
5021 if ($relative_dir eq '.')
5022 {
5023 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5024 {
5025 msg ('error-gnits', $package_version_location,
5026 "version '$package_version' doesn't follow " .
5027 "Gnits standards");
5028 }
5029 if (defined $1 && -f 'README-alpha')
5030 {
5031 # This means we have an alpha release. See
5032 # GNITS_VERSION_PATTERN for details.
5033 push_dist_common ('README-alpha');
5034 }
5035 }
5036 }
5037 }
5039 ################################################################
5041 # ($OUTPUT, @INPUTS)
5042 # &split_config_file_spec ($SPEC)
5043 # -------------------------------
5044 # Decode the Autoconf syntax for config files (files, headers, links
5045 # etc.).
5046 sub split_config_file_spec ($)
5047 {
5048 my ($spec) = @_;
5049 my ($output, @inputs) = split (/:/, $spec);
5051 push @inputs, "$output.in"
5052 unless @inputs;
5054 return ($output, @inputs);
5055 }
5057 # $input
5058 # locate_am (@POSSIBLE_SOURCES)
5059 # -----------------------------
5060 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5061 # This functions returns the first *.in file for which a *.am exists.
5062 # It returns undef otherwise.
5063 sub locate_am (@)
5064 {
5065 my (@rest) = @_;
5066 my $input;
5067 foreach my $file (@rest)
5068 {
5069 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5070 {
5071 $input = $file;
5072 last;
5073 }
5074 }
5075 return $input;
5076 }
5078 my %make_list;
5080 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5081 # ---------------------------------------------------
5082 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5083 # (or AC_OUTPUT).
5084 sub scan_autoconf_config_files ($$)
5085 {
5086 my ($where, $config_files) = @_;
5088 # Look at potential Makefile.am's.
5089 foreach (split ' ', $config_files)
5090 {
5091 # Must skip empty string for Perl 4.
5092 next if $_ eq "\\" || $_ eq '';
5094 # Handle $local:$input syntax.
5095 my ($local, @rest) = split (/:/);
5096 @rest = ("$local.in",) unless @rest;
5097 # Keep in sync with test 'conffile-leading-dot.sh'.
5098 msg ('unsupported', $where,
5099 "omit leading './' from config file names such as '$local';"
5100 . "\nremake rules might be subtly broken otherwise")
5101 if ($local =~ /^\.\//);
5102 my $input = locate_am @rest;
5103 if ($input)
5104 {
5105 # We have a file that automake should generate.
5106 $make_list{$input} = join (':', ($local, @rest));
5107 }
5108 else
5109 {
5110 # We have a file that automake should cause to be
5111 # rebuilt, but shouldn't generate itself.
5112 push (@other_input_files, $_);
5113 }
5114 $ac_config_files_location{$local} = $where;
5115 $ac_config_files_condition{$local} =
5116 new Automake::Condition (@cond_stack)
5117 if (@cond_stack);
5118 }
5119 }
5122 # &scan_autoconf_traces ($FILENAME)
5123 # ---------------------------------
5124 sub scan_autoconf_traces ($)
5125 {
5126 my ($filename) = @_;
5128 # Macros to trace, with their minimal number of arguments.
5129 #
5130 # IMPORTANT: If you add a macro here, you should also add this macro
5131 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5132 my %traced = (
5133 AC_CANONICAL_BUILD => 0,
5134 AC_CANONICAL_HOST => 0,
5135 AC_CANONICAL_TARGET => 0,
5136 AC_CONFIG_AUX_DIR => 1,
5137 AC_CONFIG_FILES => 1,
5138 AC_CONFIG_HEADERS => 1,
5139 AC_CONFIG_LIBOBJ_DIR => 1,
5140 AC_CONFIG_LINKS => 1,
5141 AC_FC_SRCEXT => 1,
5142 AC_INIT => 0,
5143 AC_LIBSOURCE => 1,
5144 AC_REQUIRE_AUX_FILE => 1,
5145 AC_SUBST_TRACE => 1,
5146 AM_AUTOMAKE_VERSION => 1,
5147 AM_PROG_MKDIR_P => 0, # FIXME: to be removed in 1.14
5148 AM_CONDITIONAL => 2,
5149 AM_EXTRA_RECURSIVE_TARGETS => 1,
5150 AM_GNU_GETTEXT => 0,
5151 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5152 AM_INIT_AUTOMAKE => 0,
5153 AM_MAINTAINER_MODE => 0,
5154 AM_PROG_AR => 0,
5155 AM_PROG_CC_C_O => 0,
5156 _AM_SUBST_NOTMAKE => 1,
5157 _AM_COND_IF => 1,
5158 _AM_COND_ELSE => 1,
5159 _AM_COND_ENDIF => 1,
5160 LT_SUPPORTED_TAG => 1,
5161 _LT_AC_TAGCONFIG => 0,
5162 m4_include => 1,
5163 m4_sinclude => 1,
5164 sinclude => 1,
5165 );
5167 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5169 # Use a separator unlikely to be used, not ':', the default, which
5170 # has a precise meaning for AC_CONFIG_FILES and so on.
5171 $traces .= join (' ',
5172 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5173 (keys %traced));
5175 my $tracefh = new Automake::XFile ("$traces $filename |");
5176 verb "reading $traces";
5178 @cond_stack = ();
5179 my $where;
5181 while ($_ = $tracefh->getline)
5182 {
5183 chomp;
5184 my ($here, $depth, @args) = split (/::/);
5185 $where = new Automake::Location $here;
5186 my $macro = $args[0];
5188 prog_error ("unrequested trace '$macro'")
5189 unless exists $traced{$macro};
5191 # Skip and diagnose malformed calls.
5192 if ($#args < $traced{$macro})
5193 {
5194 msg ('syntax', $where, "not enough arguments for $macro");
5195 next;
5196 }
5198 # Alphabetical ordering please.
5199 if ($macro eq 'AC_CANONICAL_BUILD')
5200 {
5201 if ($seen_canonical <= AC_CANONICAL_BUILD)
5202 {
5203 $seen_canonical = AC_CANONICAL_BUILD;
5204 }
5205 }
5206 elsif ($macro eq 'AC_CANONICAL_HOST')
5207 {
5208 if ($seen_canonical <= AC_CANONICAL_HOST)
5209 {
5210 $seen_canonical = AC_CANONICAL_HOST;
5211 }
5212 }
5213 elsif ($macro eq 'AC_CANONICAL_TARGET')
5214 {
5215 $seen_canonical = AC_CANONICAL_TARGET;
5216 }
5217 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5218 {
5219 if ($seen_init_automake)
5220 {
5221 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5222 . "AM_INIT_AUTOMAKE ...", partial => 1);
5223 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5224 }
5225 $config_aux_dir = $args[1];
5226 $config_aux_dir_set_in_configure_ac = 1;
5227 check_directory ($config_aux_dir, $where);
5228 }
5229 elsif ($macro eq 'AC_CONFIG_FILES')
5230 {
5231 # Look at potential Makefile.am's.
5232 scan_autoconf_config_files ($where, $args[1]);
5233 }
5234 elsif ($macro eq 'AC_CONFIG_HEADERS')
5235 {
5236 foreach my $spec (split (' ', $args[1]))
5237 {
5238 my ($dest, @src) = split (':', $spec);
5239 $ac_config_files_location{$dest} = $where;
5240 push @config_headers, $spec;
5241 }
5242 }
5243 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5244 {
5245 $config_libobj_dir = $args[1];
5246 check_directory ($config_libobj_dir, $where);
5247 }
5248 elsif ($macro eq 'AC_CONFIG_LINKS')
5249 {
5250 foreach my $spec (split (' ', $args[1]))
5251 {
5252 my ($dest, $src) = split (':', $spec);
5253 $ac_config_files_location{$dest} = $where;
5254 push @config_links, $spec;
5255 }
5256 }
5257 elsif ($macro eq 'AC_FC_SRCEXT')
5258 {
5259 my $suffix = $args[1];
5260 # These flags are used as %SOURCEFLAG% in depend2.am,
5261 # where the trailing space is important.
5262 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5263 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5264 }
5265 elsif ($macro eq 'AC_INIT')
5266 {
5267 if (defined $args[2])
5268 {
5269 $package_version = $args[2];
5270 $package_version_location = $where;
5271 }
5272 }
5273 elsif ($macro eq 'AC_LIBSOURCE')
5274 {
5275 $libsources{$args[1]} = $here;
5276 }
5277 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5278 {
5279 # Only remember the first time a file is required.
5280 $required_aux_file{$args[1]} = $where
5281 unless exists $required_aux_file{$args[1]};
5282 }
5283 elsif ($macro eq 'AC_SUBST_TRACE')
5284 {
5285 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5286 # AC_SUBST(5), then too bad.
5287 $configure_vars{$args[1]} = $where
5288 if $args[1] =~ /^\w+$/;
5289 }
5290 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5291 {
5292 error ($where,
5293 "version mismatch. This is Automake $VERSION,\n" .
5294 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5295 "comes from Automake $args[1]. You should recreate\n" .
5296 "aclocal.m4 with aclocal and run automake again.\n",
5297 # $? = 63 is used to indicate version mismatch to missing.
5298 exit_code => 63)
5299 if $VERSION ne $args[1];
5301 $seen_automake_version = 1;
5302 }
5303 elsif ($macro eq 'AM_PROG_MKDIR_P') # FIXME: to be removed in 1.14
5304 {
5305 msg 'obsolete', $where, <<'EOF';
5306 The 'AM_PROG_MKDIR_P' macro is deprecated, and will soon be removed.
5307 You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
5308 and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
5309 EOF
5310 }
5311 elsif ($macro eq 'AM_CONDITIONAL')
5312 {
5313 $configure_cond{$args[1]} = $where;
5314 }
5315 elsif ($macro eq 'AM_EXTRA_RECURSIVE_TARGETS')
5316 {
5317 # Empty leading/trailing fields might be produced by split,
5318 # hence the grep is really needed.
5319 push @extra_recursive_targets,
5320 grep (/./, (split /\s+/, $args[1]));
5321 }
5322 elsif ($macro eq 'AM_GNU_GETTEXT')
5323 {
5324 $seen_gettext = $where;
5325 $ac_gettext_location = $where;
5326 $seen_gettext_external = grep ($_ eq 'external', @args);
5327 }
5328 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5329 {
5330 $seen_gettext_intl = $where;
5331 }
5332 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5333 {
5334 $seen_init_automake = $where;
5335 if (defined $args[2])
5336 {
5337 msg 'obsolete', $where, <<'EOF';
5338 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5339 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
5340 EOF
5341 $package_version = $args[2];
5342 $package_version_location = $where;
5343 }
5344 elsif (defined $args[1])
5345 {
5346 my @opts = split (' ', $args[1]);
5347 @opts = map { { option => $_, where => $where } } @opts;
5348 exit $exit_code if process_global_option_list (@opts);
5349 }
5350 }
5351 elsif ($macro eq 'AM_MAINTAINER_MODE')
5352 {
5353 $seen_maint_mode = $where;
5354 }
5355 elsif ($macro eq 'AM_PROG_AR')
5356 {
5357 $seen_ar = $where;
5358 }
5359 elsif ($macro eq 'AM_PROG_CC_C_O')
5360 {
5361 $seen_cc_c_o = $where;
5362 }
5363 elsif ($macro eq '_AM_COND_IF')
5364 {
5365 cond_stack_if ('', $args[1], $where);
5366 error ($where, "missing m4 quoting, macro depth $depth")
5367 if ($depth != 1);
5368 }
5369 elsif ($macro eq '_AM_COND_ELSE')
5370 {
5371 cond_stack_else ('!', $args[1], $where);
5372 error ($where, "missing m4 quoting, macro depth $depth")
5373 if ($depth != 1);
5374 }
5375 elsif ($macro eq '_AM_COND_ENDIF')
5376 {
5377 cond_stack_endif (undef, undef, $where);
5378 error ($where, "missing m4 quoting, macro depth $depth")
5379 if ($depth != 1);
5380 }
5381 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5382 {
5383 $ignored_configure_vars{$args[1]} = $where;
5384 }
5385 elsif ($macro eq 'm4_include'
5386 || $macro eq 'm4_sinclude'
5387 || $macro eq 'sinclude')
5388 {
5389 # Skip missing 'sinclude'd files.
5390 next if $macro ne 'm4_include' && ! -f $args[1];
5392 # Some modified versions of Autoconf don't use
5393 # frozen files. Consequently it's possible that we see all
5394 # m4_include's performed during Autoconf's startup.
5395 # Obviously we don't want to distribute Autoconf's files
5396 # so we skip absolute filenames here.
5397 push @configure_deps, '$(top_srcdir)/' . $args[1]
5398 unless $here =~ m,^(?:\w:)?[\\/],;
5399 # Keep track of the greatest timestamp.
5400 if (-e $args[1])
5401 {
5402 my $mtime = mtime $args[1];
5403 $configure_deps_greatest_timestamp = $mtime
5404 if $mtime > $configure_deps_greatest_timestamp;
5405 }
5406 }
5407 elsif ($macro eq 'LT_SUPPORTED_TAG')
5408 {
5409 $libtool_tags{$args[1]} = 1;
5410 $libtool_new_api = 1;
5411 }
5412 elsif ($macro eq '_LT_AC_TAGCONFIG')
5413 {
5414 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5415 # We use it to detect whether tags are supported. Our
5416 # preferred interface is LT_SUPPORTED_TAG, but it was
5417 # introduced in Libtool 1.6.
5418 if (0 == keys %libtool_tags)
5419 {
5420 # Hardcode the tags supported by Libtool 1.5.
5421 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5422 }
5423 }
5424 }
5426 error ($where, "condition stack not properly closed")
5427 if (@cond_stack);
5429 $tracefh->close;
5430 }
5433 # &scan_autoconf_files ()
5434 # -----------------------
5435 # Check whether we use 'configure.ac' or 'configure.in'.
5436 # Scan it (and possibly 'aclocal.m4') for interesting things.
5437 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5438 sub scan_autoconf_files ()
5439 {
5440 # Reinitialize libsources here. This isn't really necessary,
5441 # since we currently assume there is only one configure.ac. But
5442 # that won't always be the case.
5443 %libsources = ();
5445 # Keep track of the youngest configure dependency.
5446 $configure_deps_greatest_timestamp = mtime $configure_ac;
5447 if (-e 'aclocal.m4')
5448 {
5449 my $mtime = mtime 'aclocal.m4';
5450 $configure_deps_greatest_timestamp = $mtime
5451 if $mtime > $configure_deps_greatest_timestamp;
5452 }
5454 scan_autoconf_traces ($configure_ac);
5456 @configure_input_files = sort keys %make_list;
5457 # Set input and output files if not specified by user.
5458 if (! @input_files)
5459 {
5460 @input_files = @configure_input_files;
5461 %output_files = %make_list;
5462 }
5465 if (! $seen_init_automake)
5466 {
5467 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5468 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5469 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5470 . "and that aclocal.m4 was recently regenerated "
5471 . "(using aclocal)");
5472 }
5473 else
5474 {
5475 if (! $seen_automake_version)
5476 {
5477 if (-f 'aclocal.m4')
5478 {
5479 error ($seen_init_automake,
5480 "your implementation of AM_INIT_AUTOMAKE comes from " .
5481 "an\nold Automake version. You should recreate " .
5482 "aclocal.m4\nwith aclocal and run automake again",
5483 # $? = 63 is used to indicate version mismatch to missing.
5484 exit_code => 63);
5485 }
5486 else
5487 {
5488 error ($seen_init_automake,
5489 "no proper implementation of AM_INIT_AUTOMAKE was " .
5490 "found,\nprobably because aclocal.m4 is missing.\n" .
5491 "You should run aclocal to create this file, then\n" .
5492 "run automake again");
5493 }
5494 }
5495 }
5497 locate_aux_dir ();
5499 # Look for some files we need. Always check for these. This
5500 # check must be done for every run, even those where we are only
5501 # looking at a subdir Makefile. We must set relative_dir for
5502 # push_required_file to work.
5503 # Sort the files for stable verbose output.
5504 $relative_dir = '.';
5505 foreach my $file (sort keys %required_aux_file)
5506 {
5507 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5508 }
5509 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5510 if -f $config_aux_dir . '/install.sh';
5512 # Preserve dist_common for later.
5513 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5515 }
5517 ################################################################
5519 # Do any extra checking for GNU standards.
5520 sub check_gnu_standards
5521 {
5522 if ($relative_dir eq '.')
5523 {
5524 # In top level (or only) directory.
5525 require_file ("$am_file.am", GNU,
5526 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5528 # Accept one of these three licenses; default to COPYING.
5529 # Make sure we do not overwrite an existing license.
5530 my $license;
5531 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5532 {
5533 if (-f $_)
5534 {
5535 $license = $_;
5536 last;
5537 }
5538 }
5539 require_file ("$am_file.am", GNU, 'COPYING')
5540 unless $license;
5541 }
5543 for my $opt ('no-installman', 'no-installinfo')
5544 {
5545 msg ('error-gnu', option $opt,
5546 "option '$opt' disallowed by GNU standards")
5547 if option $opt;
5548 }
5549 }
5551 # Do any extra checking for GNITS standards.
5552 sub check_gnits_standards
5553 {
5554 if ($relative_dir eq '.')
5555 {
5556 # In top level (or only) directory.
5557 require_file ("$am_file.am", GNITS, 'THANKS');
5558 }
5559 }
5561 ################################################################
5562 #
5563 # Functions to handle files of each language.
5565 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5566 # simple formula: Return value is LANG_SUBDIR if the resulting object
5567 # file should be in a subdir if the source file is, LANG_PROCESS if
5568 # file is to be dealt with, LANG_IGNORE otherwise.
5570 # Much of the actual processing is handled in
5571 # handle_single_transform. These functions exist so that
5572 # auxiliary information can be recorded for a later cleanup pass.
5573 # Note that the calls to these functions are computed, so don't bother
5574 # searching for their precise names in the source.
5576 # This is just a convenience function that can be used to determine
5577 # when a subdir object should be used.
5578 sub lang_sub_obj
5579 {
5580 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5581 }
5583 # Rewrite a single C source file.
5584 sub lang_c_rewrite
5585 {
5586 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5588 my $r = LANG_PROCESS;
5589 if (option 'subdir-objects')
5590 {
5591 $r = LANG_SUBDIR;
5592 if ($directory && $directory ne '.')
5593 {
5594 $base = $directory . '/' . $base;
5596 # libtool is always able to put the object at the proper place,
5597 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5598 msg_var ('portability', $var,
5599 "compiling '$base.c' in subdir requires "
5600 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5601 uniq_scope => US_GLOBAL,
5602 uniq_part => 'AM_PROG_CC_C_O subdir')
5603 unless $seen_cc_c_o || $obj eq '.lo';
5604 }
5605 }
5607 if (! $seen_cc_c_o
5608 && $have_per_exec_flags
5609 && ! option 'subdir-objects'
5610 && $obj ne '.lo')
5611 {
5612 msg_var ('portability',
5613 $var, "compiling '$base.c' with per-target flags requires "
5614 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5615 uniq_scope => US_GLOBAL,
5616 uniq_part => 'AM_PROG_CC_C_O per-target')
5617 }
5619 return $r;
5620 }
5622 # Rewrite a single header file.
5623 sub lang_header_rewrite
5624 {
5625 # Header files are simply ignored.
5626 return LANG_IGNORE;
5627 }
5629 # Rewrite a single Vala source file.
5630 sub lang_vala_rewrite
5631 {
5632 my ($directory, $base, $ext) = @_;
5634 (my $newext = $ext) =~ s/vala$/c/;
5635 return (LANG_SUBDIR, $newext);
5636 }
5638 # Rewrite a single yacc/yacc++ file.
5639 sub lang_yacc_rewrite
5640 {
5641 my ($directory, $base, $ext) = @_;
5643 my $r = &lang_sub_obj;
5644 (my $newext = $ext) =~ tr/y/c/;
5645 return ($r, $newext);
5646 }
5647 sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
5649 # Rewrite a single lex/lex++ file.
5650 sub lang_lex_rewrite
5651 {
5652 my ($directory, $base, $ext) = @_;
5654 my $r = &lang_sub_obj;
5655 (my $newext = $ext) =~ tr/l/c/;
5656 return ($r, $newext);
5657 }
5658 sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
5660 # Rewrite a single Java file.
5661 sub lang_java_rewrite
5662 {
5663 return LANG_SUBDIR;
5664 }
5666 # The lang_X_finish functions are called after all source file
5667 # processing is done. Each should handle defining rules for the
5668 # language, etc. A finish function is only called if a source file of
5669 # the appropriate type has been seen.
5671 sub lang_vala_finish_target ($$)
5672 {
5673 my ($self, $name) = @_;
5675 my $derived = canonicalize ($name);
5676 my $var = var "${derived}_SOURCES";
5677 return unless $var;
5679 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5681 # For automake bug#11229.
5682 return unless @vala_sources;
5684 foreach my $vala_file (@vala_sources)
5685 {
5686 my $c_file = $vala_file;
5687 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5688 {
5689 $c_file = "\$(srcdir)/$c_file";
5690 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5691 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5692 . "\t\@if test -f \$@; then :; else \\\n"
5693 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5694 . "\tfi\n";
5695 $clean_files{$c_file} = MAINTAINER_CLEAN;
5696 }
5697 }
5699 # Add rebuild rules for generated header and vapi files
5700 my $flags = var ($derived . '_VALAFLAGS');
5701 if ($flags)
5702 {
5703 my $lastflag = '';
5704 foreach my $flag ($flags->value_as_list_recursive)
5705 {
5706 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5707 '--vapi', '--internal-vapi', '--gir')))
5708 {
5709 my $headerfile = "\$(srcdir)/$flag";
5710 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5711 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5712 . "\t\@if test -f \$@; then :; else \\\n"
5713 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5714 . "\tfi\n";
5716 # valac is not used when building from dist tarballs
5717 # distribute the generated files
5718 push_dist_common ($headerfile);
5719 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5720 }
5721 $lastflag = $flag;
5722 }
5723 }
5725 my $compile = $self->compile;
5727 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5728 # rule into '${derived}_VALAFLAGS' if it exists.
5729 my $val = "${derived}_VALAFLAGS";
5730 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5731 if set_seen ($val);
5733 # VALAFLAGS is a user variable (per GNU Standards),
5734 # it should not be overridden in the Makefile...
5735 check_user_variables 'VALAFLAGS';
5737 my $dirname = dirname ($name);
5739 # Only generate C code, do not run C compiler
5740 $compile .= " -C";
5742 my $verbose = verbose_flag ('VALAC');
5743 my $silent = silent_flag ();
5744 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5746 $output_rules .=
5747 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5748 # Since the C files generated from the vala sources depend on the
5749 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5750 # those of the C files generated by the valac invocation below (this is
5751 # especially important on systems with sub-second timestamp resolution).
5752 # Thus we need to create the stamp file *before* invoking valac, and to
5753 # move it to its final location only after valac has been invoked.
5754 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5755 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5756 "\t${silent}mv -f \$\@-t \$\@\n";
5758 push_dist_common ($stampfile);
5760 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5761 }
5763 # Add output rules to invoke valac and create stamp file as a witness
5764 # to handle multiple outputs. This function is called after all source
5765 # file processing is done.
5766 sub lang_vala_finish
5767 {
5768 my ($self) = @_;
5770 foreach my $prog (keys %known_programs)
5771 {
5772 lang_vala_finish_target ($self, $prog);
5773 }
5775 while (my ($name) = each %known_libraries)
5776 {
5777 lang_vala_finish_target ($self, $name);
5778 }
5779 }
5781 # The built .c files should be cleaned only on maintainer-clean
5782 # as the .c files are distributed. This function is called for each
5783 # .vala source file.
5784 sub lang_vala_target_hook
5785 {
5786 my ($self, $aggregate, $output, $input, %transform) = @_;
5788 $clean_files{$output} = MAINTAINER_CLEAN;
5789 }
5791 # This is a yacc helper which is called whenever we have decided to
5792 # compile a yacc file.
5793 sub lang_yacc_target_hook
5794 {
5795 my ($self, $aggregate, $output, $input, %transform) = @_;
5797 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5798 # have to to generate special code.
5799 my $yflags_contains_minus_d = 0;
5801 foreach my $pfx ("", "${aggregate}_")
5802 {
5803 my $yflagsvar = var ("${pfx}YFLAGS");
5804 next unless $yflagsvar;
5805 # We cannot work reliably with conditionally-defined YFLAGS.
5806 if ($yflagsvar->has_conditional_contents)
5807 {
5808 msg_var ('unsupported', $yflagsvar,
5809 "'${pfx}YFLAGS' cannot have conditional contents");
5810 }
5811 else
5812 {
5813 $yflags_contains_minus_d = 1
5814 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5815 }
5816 }
5818 if ($yflags_contains_minus_d)
5819 {
5820 # Found a '-d' that applies to the compilation of this file.
5821 # Add a dependency for the generated header file, and arrange
5822 # for that file to be included in the distribution.
5824 # The extension of the output file (e.g., '.c' or '.cxx').
5825 # We'll need it to compute the name of the generated header file.
5826 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5828 # We know that a yacc input should be turned into either a C or
5829 # C++ output file. We depend on this fact (here and in yacc.am),
5830 # so check that it really holds.
5831 my $lang = $languages{$extension_map{$output_ext}};
5832 prog_error "invalid output name '$output' for yacc file '$input'"
5833 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5835 (my $header_ext = $output_ext) =~ s/c/h/g;
5836 # Quote $output_ext in the regexp, so that dots in it are taken
5837 # as literal dots, not as metacharacters.
5838 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5840 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5841 RULE_AUTOMAKE, TRUE,
5842 INTERNAL))
5843 {
5844 my $condstr = $cond->subst_string;
5845 $output_rules .=
5846 "$condstr${header}: $output\n"
5847 # Recover from removal of $header
5848 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5849 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5850 }
5851 # Distribute the generated file, unless its .y source was
5852 # listed in a nodist_ variable. (&handle_source_transform
5853 # will set DIST_SOURCE.)
5854 &push_dist_common ($header)
5855 if $transform{'DIST_SOURCE'};
5857 # The GNU rules say that yacc/lex output files should be removed
5858 # by maintainer-clean. However, if the files are not distributed,
5859 # then we want to remove them with "make clean"; otherwise,
5860 # "make distcheck" will fail.
5861 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5862 }
5863 # See the comment above for $HEADER.
5864 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5865 }
5867 # This is a lex helper which is called whenever we have decided to
5868 # compile a lex file.
5869 sub lang_lex_target_hook
5870 {
5871 my ($self, $aggregate, $output, $input, %transform) = @_;
5872 # The GNU rules say that yacc/lex output files should be removed
5873 # by maintainer-clean. However, if the files are not distributed,
5874 # then we want to remove them with "make clean"; otherwise,
5875 # "make distcheck" will fail.
5876 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5877 }
5879 # This is a helper for both lex and yacc.
5880 sub yacc_lex_finish_helper
5881 {
5882 return if defined $language_scratch{'lex-yacc-done'};
5883 $language_scratch{'lex-yacc-done'} = 1;
5885 # FIXME: for now, no line number.
5886 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5887 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5888 }
5890 sub lang_yacc_finish
5891 {
5892 return if defined $language_scratch{'yacc-done'};
5893 $language_scratch{'yacc-done'} = 1;
5895 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5897 yacc_lex_finish_helper;
5898 }
5901 sub lang_lex_finish
5902 {
5903 return if defined $language_scratch{'lex-done'};
5904 $language_scratch{'lex-done'} = 1;
5906 yacc_lex_finish_helper;
5907 }
5910 # Given a hash table of linker names, pick the name that has the most
5911 # precedence. This is lame, but something has to have global
5912 # knowledge in order to eliminate the conflict. Add more linkers as
5913 # required.
5914 sub resolve_linker
5915 {
5916 my (%linkers) = @_;
5918 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5919 {
5920 return $l if defined $linkers{$l};
5921 }
5922 return 'LINK';
5923 }
5925 # Called to indicate that an extension was used.
5926 sub saw_extension
5927 {
5928 my ($ext) = @_;
5929 $extension_seen{$ext} = 1;
5930 }
5932 # register_language (%ATTRIBUTE)
5933 # ------------------------------
5934 # Register a single language.
5935 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5936 sub register_language (%)
5937 {
5938 my (%option) = @_;
5940 # Set the defaults.
5941 $option{'autodep'} = 'no'
5942 unless defined $option{'autodep'};
5943 $option{'linker'} = ''
5944 unless defined $option{'linker'};
5945 $option{'flags'} = []
5946 unless defined $option{'flags'};
5947 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5948 unless defined $option{'output_extensions'};
5949 $option{'nodist_specific'} = 0
5950 unless defined $option{'nodist_specific'};
5952 my $lang = new Language (%option);
5954 # Fill indexes.
5955 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5956 $languages{$lang->name} = $lang;
5957 my $link = $lang->linker;
5958 if ($link)
5959 {
5960 if (exists $link_languages{$link})
5961 {
5962 prog_error ("'$link' has different definitions in "
5963 . $lang->name . " and " . $link_languages{$link}->name)
5964 if $lang->link ne $link_languages{$link}->link;
5965 }
5966 else
5967 {
5968 $link_languages{$link} = $lang;
5969 }
5970 }
5972 # Update the pattern of known extensions.
5973 accept_extensions (@{$lang->extensions});
5975 # Upate the $suffix_rule map.
5976 foreach my $suffix (@{$lang->extensions})
5977 {
5978 foreach my $dest (&{$lang->output_extensions} ($suffix))
5979 {
5980 register_suffix_rule (INTERNAL, $suffix, $dest);
5981 }
5982 }
5983 }
5985 # derive_suffix ($EXT, $OBJ)
5986 # --------------------------
5987 # This function is used to find a path from a user-specified suffix $EXT
5988 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
5989 sub derive_suffix ($$)
5990 {
5991 my ($source_ext, $obj) = @_;
5993 while (! $extension_map{$source_ext}
5994 && $source_ext ne $obj
5995 && exists $suffix_rules->{$source_ext}
5996 && exists $suffix_rules->{$source_ext}{$obj})
5997 {
5998 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5999 }
6001 return $source_ext;
6002 }
6005 ################################################################
6007 # Pretty-print something and append to output_rules.
6008 sub pretty_print_rule
6009 {
6010 $output_rules .= &makefile_wrap (@_);
6011 }
6014 ################################################################
6017 ## -------------------------------- ##
6018 ## Handling the conditional stack. ##
6019 ## -------------------------------- ##
6022 # $STRING
6023 # make_conditional_string ($NEGATE, $COND)
6024 # ----------------------------------------
6025 sub make_conditional_string ($$)
6026 {
6027 my ($negate, $cond) = @_;
6028 $cond = "${cond}_TRUE"
6029 unless $cond =~ /^TRUE|FALSE$/;
6030 $cond = Automake::Condition::conditional_negate ($cond)
6031 if $negate;
6032 return $cond;
6033 }
6036 my %_am_macro_for_cond =
6037 (
6038 AMDEP => "one of the compiler tests\n"
6039 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6040 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6041 am__fastdepCC => 'AC_PROG_CC',
6042 am__fastdepCCAS => 'AM_PROG_AS',
6043 am__fastdepCXX => 'AC_PROG_CXX',
6044 am__fastdepGCJ => 'AM_PROG_GCJ',
6045 am__fastdepOBJC => 'AC_PROG_OBJC',
6046 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6047 am__fastdepUPC => 'AM_PROG_UPC'
6048 );
6050 # $COND
6051 # cond_stack_if ($NEGATE, $COND, $WHERE)
6052 # --------------------------------------
6053 sub cond_stack_if ($$$)
6054 {
6055 my ($negate, $cond, $where) = @_;
6057 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6058 {
6059 my $text = "$cond does not appear in AM_CONDITIONAL";
6060 my $scope = US_LOCAL;
6061 if (exists $_am_macro_for_cond{$cond})
6062 {
6063 my $mac = $_am_macro_for_cond{$cond};
6064 $text .= "\n The usual way to define '$cond' is to add ";
6065 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6066 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6067 # These warnings appear in Automake files (depend2.am),
6068 # so there is no need to display them more than once:
6069 $scope = US_GLOBAL;
6070 }
6071 error $where, $text, uniq_scope => $scope;
6072 }
6074 push (@cond_stack, make_conditional_string ($negate, $cond));
6076 return new Automake::Condition (@cond_stack);
6077 }
6080 # $COND
6081 # cond_stack_else ($NEGATE, $COND, $WHERE)
6082 # ----------------------------------------
6083 sub cond_stack_else ($$$)
6084 {
6085 my ($negate, $cond, $where) = @_;
6087 if (! @cond_stack)
6088 {
6089 error $where, "else without if";
6090 return FALSE;
6091 }
6093 $cond_stack[$#cond_stack] =
6094 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6096 # If $COND is given, check against it.
6097 if (defined $cond)
6098 {
6099 $cond = make_conditional_string ($negate, $cond);
6101 error ($where, "else reminder ($negate$cond) incompatible with "
6102 . "current conditional: $cond_stack[$#cond_stack]")
6103 if $cond_stack[$#cond_stack] ne $cond;
6104 }
6106 return new Automake::Condition (@cond_stack);
6107 }
6110 # $COND
6111 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6112 # -----------------------------------------
6113 sub cond_stack_endif ($$$)
6114 {
6115 my ($negate, $cond, $where) = @_;
6116 my $old_cond;
6118 if (! @cond_stack)
6119 {
6120 error $where, "endif without if";
6121 return TRUE;
6122 }
6124 # If $COND is given, check against it.
6125 if (defined $cond)
6126 {
6127 $cond = make_conditional_string ($negate, $cond);
6129 error ($where, "endif reminder ($negate$cond) incompatible with "
6130 . "current conditional: $cond_stack[$#cond_stack]")
6131 if $cond_stack[$#cond_stack] ne $cond;
6132 }
6134 pop @cond_stack;
6136 return new Automake::Condition (@cond_stack);
6137 }
6143 ## ------------------------ ##
6144 ## Handling the variables. ##
6145 ## ------------------------ ##
6148 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6149 # -----------------------------------------------------
6150 # Like define_variable, but the value is a list, and the variable may
6151 # be defined conditionally. The second argument is the condition
6152 # under which the value should be defined; this should be the empty
6153 # string to define the variable unconditionally. The third argument
6154 # is a list holding the values to use for the variable. The value is
6155 # pretty printed in the output file.
6156 sub define_pretty_variable ($$$@)
6157 {
6158 my ($var, $cond, $where, @value) = @_;
6160 if (! vardef ($var, $cond))
6161 {
6162 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6163 '', $where, VAR_PRETTY);
6164 rvar ($var)->rdef ($cond)->set_seen;
6165 }
6166 }
6169 # define_variable ($VAR, $VALUE, $WHERE)
6170 # --------------------------------------
6171 # Define a new Automake Makefile variable VAR to VALUE, but only if
6172 # not already defined.
6173 sub define_variable ($$$)
6174 {
6175 my ($var, $value, $where) = @_;
6176 define_pretty_variable ($var, TRUE, $where, $value);
6177 }
6180 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6181 # ------------------------------------------------------------
6182 # Define the $VAR which content is the list of file names composed of
6183 # a @BASENAME and the $EXTENSION.
6184 sub define_files_variable ($\@$$)
6185 {
6186 my ($var, $basename, $extension, $where) = @_;
6187 define_variable ($var,
6188 join (' ', map { "$_.$extension" } @$basename),
6189 $where);
6190 }
6193 # Like define_variable, but define a variable to be the configure
6194 # substitution by the same name.
6195 sub define_configure_variable ($)
6196 {
6197 my ($var) = @_;
6198 # Some variables we do not want to output. For instance it
6199 # would be a bad idea to output `U = @U@` when `@U@` can be
6200 # substituted as `\`.
6201 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6202 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6203 '', $configure_vars{$var}, $pretty);
6204 }
6207 # define_compiler_variable ($LANG)
6208 # --------------------------------
6209 # Define a compiler variable. We also handle defining the 'LT'
6210 # version of the command when using libtool.
6211 sub define_compiler_variable ($)
6212 {
6213 my ($lang) = @_;
6215 my ($var, $value) = ($lang->compiler, $lang->compile);
6216 my $libtool_tag = '';
6217 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6218 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6219 &define_variable ($var, $value, INTERNAL);
6220 if (var ('LIBTOOL'))
6221 {
6222 my $verbose = define_verbose_libtool ();
6223 &define_variable ("LT$var",
6224 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6225 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6226 INTERNAL);
6227 }
6228 define_verbose_tagvar ($lang->ccer || 'GEN');
6229 }
6232 # define_linker_variable ($LANG)
6233 # ------------------------------
6234 # Define linker variables.
6235 sub define_linker_variable ($)
6236 {
6237 my ($lang) = @_;
6239 my $libtool_tag = '';
6240 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6241 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6242 # CCLD = $(CC).
6243 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6244 # CCLINK = $(CCLD) blah blah...
6245 my $link = '';
6246 if (var ('LIBTOOL'))
6247 {
6248 my $verbose = define_verbose_libtool ();
6249 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6250 . "\$(LIBTOOLFLAGS) --mode=link ";
6251 }
6252 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6253 &define_variable ($lang->compiler, $lang);
6254 &define_verbose_tagvar ($lang->lder || 'GEN');
6255 }
6257 sub define_per_target_linker_variable ($$)
6258 {
6259 my ($linker, $target) = @_;
6261 # If the user wrote a custom link command, we don't define ours.
6262 return "${target}_LINK"
6263 if set_seen "${target}_LINK";
6265 my $xlink = $linker ? $linker : 'LINK';
6267 my $lang = $link_languages{$xlink};
6268 prog_error "Unknown language for linker variable '$xlink'"
6269 unless $lang;
6271 my $link_command = $lang->link;
6272 if (var 'LIBTOOL')
6273 {
6274 my $libtool_tag = '';
6275 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6276 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6278 my $verbose = define_verbose_libtool ();
6279 $link_command =
6280 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6281 . "--mode=link " . $link_command;
6282 }
6284 # Rewrite each occurrence of 'AM_$flag' in the link
6285 # command into '${derived}_$flag' if it exists.
6286 my $orig_command = $link_command;
6287 my @flags = (@{$lang->flags}, 'LDFLAGS');
6288 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6289 for my $flag (@flags)
6290 {
6291 my $val = "${target}_$flag";
6292 $link_command =~ s/\(AM_$flag\)/\($val\)/
6293 if set_seen ($val);
6294 }
6296 # If the computed command is the same as the generic command, use
6297 # the command linker variable.
6298 return ($lang->linker, $lang->lder)
6299 if $link_command eq $orig_command;
6301 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6302 return ("${target}_LINK", $lang->lder);
6303 }
6305 ################################################################
6307 # &check_trailing_slash ($WHERE, $LINE)
6308 # -------------------------------------
6309 # Return 1 iff $LINE ends with a slash.
6310 # Might modify $LINE.
6311 sub check_trailing_slash ($\$)
6312 {
6313 my ($where, $line) = @_;
6315 # Ignore '##' lines.
6316 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6318 # Catch and fix a common error.
6319 msg "syntax", $where, "whitespace following trailing backslash"
6320 if $$line =~ s/\\\s+\n$/\\\n/;
6322 return $$line =~ /\\$/;
6323 }
6326 # &read_am_file ($AMFILE, $WHERE)
6327 # -------------------------------
6328 # Read Makefile.am and set up %contents. Simultaneously copy lines
6329 # from Makefile.am into $output_trailer, or define variables as
6330 # appropriate. NOTE we put rules in the trailer section. We want
6331 # user rules to come after our generated stuff.
6332 sub read_am_file ($$)
6333 {
6334 my ($amfile, $where) = @_;
6336 my $am_file = new Automake::XFile ("< $amfile");
6337 verb "reading $amfile";
6339 # Keep track of the youngest output dependency.
6340 my $mtime = mtime $amfile;
6341 $output_deps_greatest_timestamp = $mtime
6342 if $mtime > $output_deps_greatest_timestamp;
6344 my $spacing = '';
6345 my $comment = '';
6346 my $blank = 0;
6347 my $saw_bk = 0;
6348 my $var_look = VAR_ASIS;
6350 use constant IN_VAR_DEF => 0;
6351 use constant IN_RULE_DEF => 1;
6352 use constant IN_COMMENT => 2;
6353 my $prev_state = IN_RULE_DEF;
6355 while ($_ = $am_file->getline)
6356 {
6357 $where->set ("$amfile:$.");
6358 if (/$IGNORE_PATTERN/o)
6359 {
6360 # Merely delete comments beginning with two hashes.
6361 }
6362 elsif (/$WHITE_PATTERN/o)
6363 {
6364 error $where, "blank line following trailing backslash"
6365 if $saw_bk;
6366 # Stick a single white line before the incoming macro or rule.
6367 $spacing = "\n";
6368 $blank = 1;
6369 # Flush all comments seen so far.
6370 if ($comment ne '')
6371 {
6372 $output_vars .= $comment;
6373 $comment = '';
6374 }
6375 }
6376 elsif (/$COMMENT_PATTERN/o)
6377 {
6378 # Stick comments before the incoming macro or rule. Make
6379 # sure a blank line precedes the first block of comments.
6380 $spacing = "\n" unless $blank;
6381 $blank = 1;
6382 $comment .= $spacing . $_;
6383 $spacing = '';
6384 $prev_state = IN_COMMENT;
6385 }
6386 else
6387 {
6388 last;
6389 }
6390 $saw_bk = check_trailing_slash ($where, $_);
6391 }
6393 # We save the conditional stack on entry, and then check to make
6394 # sure it is the same on exit. This lets us conditionally include
6395 # other files.
6396 my @saved_cond_stack = @cond_stack;
6397 my $cond = new Automake::Condition (@cond_stack);
6399 my $last_var_name = '';
6400 my $last_var_type = '';
6401 my $last_var_value = '';
6402 my $last_where;
6403 # FIXME: shouldn't use $_ in this loop; it is too big.
6404 while ($_)
6405 {
6406 $where->set ("$amfile:$.");
6408 # Make sure the line is \n-terminated.
6409 chomp;
6410 $_ .= "\n";
6412 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6413 # used by users. @MAINT@ is an anachronism now.
6414 $_ =~ s/\@MAINT\@//g
6415 unless $seen_maint_mode;
6417 my $new_saw_bk = check_trailing_slash ($where, $_);
6419 if (/$IGNORE_PATTERN/o)
6420 {
6421 # Merely delete comments beginning with two hashes.
6423 # Keep any backslash from the previous line.
6424 $new_saw_bk = $saw_bk;
6425 }
6426 elsif (/$WHITE_PATTERN/o)
6427 {
6428 # Stick a single white line before the incoming macro or rule.
6429 $spacing = "\n";
6430 error $where, "blank line following trailing backslash"
6431 if $saw_bk;
6432 }
6433 elsif (/$COMMENT_PATTERN/o)
6434 {
6435 error $where, "comment following trailing backslash"
6436 if $saw_bk && $prev_state != IN_COMMENT;
6438 # Stick comments before the incoming macro or rule.
6439 $comment .= $spacing . $_;
6440 $spacing = '';
6441 $prev_state = IN_COMMENT;
6442 }
6443 elsif ($saw_bk)
6444 {
6445 if ($prev_state == IN_RULE_DEF)
6446 {
6447 my $cond = new Automake::Condition @cond_stack;
6448 $output_trailer .= $cond->subst_string;
6449 $output_trailer .= $_;
6450 }
6451 elsif ($prev_state == IN_COMMENT)
6452 {
6453 # If the line doesn't start with a '#', add it.
6454 # We do this because a continued comment like
6455 # # A = foo \
6456 # bar \
6457 # baz
6458 # is not portable. BSD make doesn't honor
6459 # escaped newlines in comments.
6460 s/^#?/#/;
6461 $comment .= $spacing . $_;
6462 }
6463 else # $prev_state == IN_VAR_DEF
6464 {
6465 $last_var_value .= ' '
6466 unless $last_var_value =~ /\s$/;
6467 $last_var_value .= $_;
6469 if (!/\\$/)
6470 {
6471 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6472 $last_var_type, $cond,
6473 $last_var_value, $comment,
6474 $last_where, VAR_ASIS)
6475 if $cond != FALSE;
6476 $comment = $spacing = '';
6477 }
6478 }
6479 }
6481 elsif (/$IF_PATTERN/o)
6482 {
6483 $cond = cond_stack_if ($1, $2, $where);
6484 }
6485 elsif (/$ELSE_PATTERN/o)
6486 {
6487 $cond = cond_stack_else ($1, $2, $where);
6488 }
6489 elsif (/$ENDIF_PATTERN/o)
6490 {
6491 $cond = cond_stack_endif ($1, $2, $where);
6492 }
6494 elsif (/$RULE_PATTERN/o)
6495 {
6496 # Found a rule.
6497 $prev_state = IN_RULE_DEF;
6499 # For now we have to output all definitions of user rules
6500 # and can't diagnose duplicates (see the comment in
6501 # Automake::Rule::define). So we go on and ignore the return value.
6502 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6504 check_variable_expansions ($_, $where);
6506 $output_trailer .= $comment . $spacing;
6507 my $cond = new Automake::Condition @cond_stack;
6508 $output_trailer .= $cond->subst_string;
6509 $output_trailer .= $_;
6510 $comment = $spacing = '';
6511 }
6512 elsif (/$ASSIGNMENT_PATTERN/o)
6513 {
6514 # Found a macro definition.
6515 $prev_state = IN_VAR_DEF;
6516 $last_var_name = $1;
6517 $last_var_type = $2;
6518 $last_var_value = $3;
6519 $last_where = $where->clone;
6520 if ($3 ne '' && substr ($3, -1) eq "\\")
6521 {
6522 # We preserve the '\' because otherwise the long lines
6523 # that are generated will be truncated by broken
6524 # 'sed's.
6525 $last_var_value = $3 . "\n";
6526 }
6527 # Normally we try to output variable definitions in the
6528 # same format they were input. However, POSIX compliant
6529 # systems are not required to support lines longer than
6530 # 2048 bytes (most notably, some sed implementation are
6531 # limited to 4000 bytes, and sed is used by config.status
6532 # to rewrite Makefile.in into Makefile). Moreover nobody
6533 # would really write such long lines by hand since it is
6534 # hardly maintainable. So if a line is longer that 1000
6535 # bytes (an arbitrary limit), assume it has been
6536 # automatically generated by some tools, and flatten the
6537 # variable definition. Otherwise, keep the variable as it
6538 # as been input.
6539 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6541 if (!/\\$/)
6542 {
6543 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6544 $last_var_type, $cond,
6545 $last_var_value, $comment,
6546 $last_where, $var_look)
6547 if $cond != FALSE;
6548 $comment = $spacing = '';
6549 $var_look = VAR_ASIS;
6550 }
6551 }
6552 elsif (/$INCLUDE_PATTERN/o)
6553 {
6554 my $path = $1;
6556 if ($path =~ s/^\$\(top_srcdir\)\///)
6557 {
6558 push (@include_stack, "\$\(top_srcdir\)/$path");
6559 # Distribute any included file.
6561 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6562 # otherwise OSF make will implicitly copy the included
6563 # file in the build tree during "make distdir" to satisfy
6564 # the dependency.
6565 # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
6566 push_dist_common ("\$\(top_srcdir\)/$path");
6567 }
6568 else
6569 {
6570 $path =~ s/\$\(srcdir\)\///;
6571 push (@include_stack, "\$\(srcdir\)/$path");
6572 # Always use the $(srcdir) prefix in DIST_COMMON,
6573 # otherwise OSF make will implicitly copy the included
6574 # file in the build tree during "make distdir" to satisfy
6575 # the dependency.
6576 # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
6577 push_dist_common ("\$\(srcdir\)/$path");
6578 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6579 }
6580 $where->push_context ("'$path' included from here");
6581 &read_am_file ($path, $where);
6582 $where->pop_context;
6583 }
6584 else
6585 {
6586 # This isn't an error; it is probably a continued rule.
6587 # In fact, this is what we assume.
6588 $prev_state = IN_RULE_DEF;
6589 check_variable_expansions ($_, $where);
6590 $output_trailer .= $comment . $spacing;
6591 my $cond = new Automake::Condition @cond_stack;
6592 $output_trailer .= $cond->subst_string;
6593 $output_trailer .= $_;
6594 $comment = $spacing = '';
6595 error $where, "'#' comment at start of rule is unportable"
6596 if $_ =~ /^\t\s*\#/;
6597 }
6599 $saw_bk = $new_saw_bk;
6600 $_ = $am_file->getline;
6601 }
6603 $output_trailer .= $comment;
6605 error ($where, "trailing backslash on last line")
6606 if $saw_bk;
6608 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6609 : "too many conditionals closed in include file"))
6610 if "@saved_cond_stack" ne "@cond_stack";
6611 }
6614 # define_standard_variables ()
6615 # ----------------------------
6616 # A helper for read_main_am_file which initializes configure variables
6617 # and variables from header-vars.am.
6618 sub define_standard_variables
6619 {
6620 my $saved_output_vars = $output_vars;
6621 my ($comments, undef, $rules) =
6622 file_contents_internal (1, "$libdir/am/header-vars.am",
6623 new Automake::Location);
6625 foreach my $var (sort keys %configure_vars)
6626 {
6627 &define_configure_variable ($var);
6628 }
6630 $output_vars .= $comments . $rules;
6631 }
6633 # Read main am file.
6634 sub read_main_am_file ($$)
6635 {
6636 my ($amfile, $infile) = @_;
6638 # This supports the strange variable tricks we are about to play.
6639 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6640 if (scalar (variables) > 0);
6642 # Generate copyright header for generated Makefile.in.
6643 # We do discard the output of predefined variables, handled below.
6644 $output_vars = ("# " . basename ($infile) . " generated by automake "
6645 . $VERSION . " from " . basename ($amfile) . ".\n");
6646 $output_vars .= '# ' . subst ('configure_input') . "\n";
6647 $output_vars .= $gen_copyright;
6649 # We want to predefine as many variables as possible. This lets
6650 # the user set them with '+=' in Makefile.am.
6651 &define_standard_variables;
6653 # Read user file, which might override some of our values.
6654 &read_am_file ($amfile, new Automake::Location);
6655 }
6659 ################################################################
6661 # $FLATTENED
6662 # &flatten ($STRING)
6663 # ------------------
6664 # Flatten the $STRING and return the result.
6665 sub flatten
6666 {
6667 $_ = shift;
6669 s/\\\n//somg;
6670 s/\s+/ /g;
6671 s/^ //;
6672 s/ $//;
6674 return $_;
6675 }
6678 # transform_token ($TOKEN, \%PAIRS, $KEY)
6679 # =======================================
6680 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6681 # (which should be ?KEY? or any of the special %% requests)..
6682 sub transform_token ($$$)
6683 {
6684 my ($token, $transform, $key) = @_;
6685 my $res = $transform->{$key};
6686 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6687 return $res;
6688 }
6691 # transform ($TOKEN, \%PAIRS)
6692 # ===========================
6693 # If ($TOKEN, $VAL) is in %PAIRS:
6694 # - replaces %KEY% with $VAL,
6695 # - enables/disables ?KEY? and ?!KEY?,
6696 # - replaces %?KEY% with TRUE or FALSE.
6697 sub transform ($$)
6698 {
6699 my ($token, $transform) = @_;
6701 # %KEY%.
6702 # Must be before the following pattern to exclude the case
6703 # when there is neither IFTRUE nor IFFALSE.
6704 if ($token =~ /^%([\w\-]+)%$/)
6705 {
6706 return transform_token ($token, $transform, $1);
6707 }
6708 # %?KEY%.
6709 elsif ($token =~ /^%\?([\w\-]+)%$/)
6710 {
6711 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6712 }
6713 # ?KEY? and ?!KEY?.
6714 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6715 {
6716 my $neg = ($1 eq '!') ? 1 : 0;
6717 my $val = transform_token ($token, $transform, $2);
6718 return (!!$val == $neg) ? '##%' : '';
6719 }
6720 else
6721 {
6722 prog_error "Unknown request format: $token";
6723 }
6724 }
6726 # $TEXT
6727 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6728 # -----------------------------------------
6729 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6730 # No extra parsing or post-processing is done (i.e., recognition of
6731 # rules declaration or of make variables definitions).
6732 sub preprocess_file ($%)
6733 {
6734 my ($file, %transform) = @_;
6736 # Complete %transform with global options.
6737 # Note that %transform goes last, so it overrides global options.
6738 %transform = ( 'MAINTAINER-MODE'
6739 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6741 'XZ' => !! option 'dist-xz',
6742 'LZIP' => !! option 'dist-lzip',
6743 'BZIP2' => !! option 'dist-bzip2',
6744 'COMPRESS' => !! option 'dist-tarZ',
6745 'GZIP' => ! option 'no-dist-gzip',
6746 'SHAR' => !! option 'dist-shar',
6747 'ZIP' => !! option 'dist-zip',
6749 'INSTALL-INFO' => ! option 'no-installinfo',
6750 'INSTALL-MAN' => ! option 'no-installman',
6751 'CK-NEWS' => !! option 'check-news',
6753 'SUBDIRS' => !! var ('SUBDIRS'),
6754 'TOPDIR_P' => $relative_dir eq '.',
6756 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6757 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6758 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6760 'LIBTOOL' => !! var ('LIBTOOL'),
6761 'NONLIBTOOL' => 1,
6762 %transform);
6764 if (! defined ($_ = $am_file_cache{$file}))
6765 {
6766 verb "reading $file";
6767 # Swallow the whole file.
6768 my $fc_file = new Automake::XFile "< $file";
6769 my $saved_dollar_slash = $/;
6770 undef $/;
6771 $_ = $fc_file->getline;
6772 $/ = $saved_dollar_slash;
6773 $fc_file->close;
6774 # Remove ##-comments.
6775 # Besides we don't need more than two consecutive new-lines.
6776 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6777 # Remember the contents of the just-read file.
6778 $am_file_cache{$file} = $_;
6779 }
6781 # Substitute Automake template tokens.
6782 s/(?: % \?? [\w\-]+ %
6783 | \? !? [\w\-]+ \?
6784 )/transform($&, \%transform)/gex;
6785 # transform() may have added some ##%-comments to strip.
6786 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6787 # ####### and do not remove the latter.)
6788 s/^[ \t]*(?:##%)+.*\n//gm;
6790 return $_;
6791 }
6794 # @PARAGRAPHS
6795 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6796 # ------------------------------------------
6797 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6798 # paragraphs.
6799 sub make_paragraphs ($%)
6800 {
6801 my ($file, %transform) = @_;
6802 $transform{FIRST} = !$transformed_files{$file};
6803 $transformed_files{$file} = 1;
6805 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6806 my @res;
6808 while (defined ($_ = shift @lines))
6809 {
6810 my $paragraph = $_;
6811 # If we are a rule, eat as long as we start with a tab.
6812 if (/$RULE_PATTERN/smo)
6813 {
6814 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6815 {
6816 $paragraph .= "\n$_";
6817 }
6818 unshift (@lines, $_);
6819 }
6821 # If we are a comments, eat as much comments as you can.
6822 elsif (/$COMMENT_PATTERN/smo)
6823 {
6824 while (defined ($_ = shift @lines)
6825 && $_ =~ /$COMMENT_PATTERN/smo)
6826 {
6827 $paragraph .= "\n$_";
6828 }
6829 unshift (@lines, $_);
6830 }
6832 push @res, $paragraph;
6833 }
6835 return @res;
6836 }
6840 # ($COMMENT, $VARIABLES, $RULES)
6841 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6842 # -------------------------------------------------------------
6843 # Return contents of a file from $libdir/am, automatically skipping
6844 # macros or rules which are already known. $IS_AM iff the caller is
6845 # reading an Automake file (as opposed to the user's Makefile.am).
6846 sub file_contents_internal ($$$%)
6847 {
6848 my ($is_am, $file, $where, %transform) = @_;
6850 $where->set ($file);
6852 my $result_vars = '';
6853 my $result_rules = '';
6854 my $comment = '';
6855 my $spacing = '';
6857 # The following flags are used to track rules spanning across
6858 # multiple paragraphs.
6859 my $is_rule = 0; # 1 if we are processing a rule.
6860 my $discard_rule = 0; # 1 if the current rule should not be output.
6862 # We save the conditional stack on entry, and then check to make
6863 # sure it is the same on exit. This lets us conditionally include
6864 # other files.
6865 my @saved_cond_stack = @cond_stack;
6866 my $cond = new Automake::Condition (@cond_stack);
6868 foreach (make_paragraphs ($file, %transform))
6869 {
6870 # FIXME: no line number available.
6871 $where->set ($file);
6873 # Sanity checks.
6874 error $where, "blank line following trailing backslash:\n$_"
6875 if /\\$/;
6876 error $where, "comment following trailing backslash:\n$_"
6877 if /\\#/;
6879 if (/^$/)
6880 {
6881 $is_rule = 0;
6882 # Stick empty line before the incoming macro or rule.
6883 $spacing = "\n";
6884 }
6885 elsif (/$COMMENT_PATTERN/mso)
6886 {
6887 $is_rule = 0;
6888 # Stick comments before the incoming macro or rule.
6889 $comment = "$_\n";
6890 }
6892 # Handle inclusion of other files.
6893 elsif (/$INCLUDE_PATTERN/o)
6894 {
6895 if ($cond != FALSE)
6896 {
6897 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6898 $where->push_context ("'$file' included from here");
6899 # N-ary '.=' fails.
6900 my ($com, $vars, $rules)
6901 = file_contents_internal ($is_am, $file, $where, %transform);
6902 $where->pop_context;
6903 $comment .= $com;
6904 $result_vars .= $vars;
6905 $result_rules .= $rules;
6906 }
6907 }
6909 # Handling the conditionals.
6910 elsif (/$IF_PATTERN/o)
6911 {
6912 $cond = cond_stack_if ($1, $2, $file);
6913 }
6914 elsif (/$ELSE_PATTERN/o)
6915 {
6916 $cond = cond_stack_else ($1, $2, $file);
6917 }
6918 elsif (/$ENDIF_PATTERN/o)
6919 {
6920 $cond = cond_stack_endif ($1, $2, $file);
6921 }
6923 # Handling rules.
6924 elsif (/$RULE_PATTERN/mso)
6925 {
6926 $is_rule = 1;
6927 $discard_rule = 0;
6928 # Separate relationship from optional actions: the first
6929 # `new-line tab" not preceded by backslash (continuation
6930 # line).
6931 my $paragraph = $_;
6932 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6933 my ($relationship, $actions) = ($1, $2 || '');
6935 # Separate targets from dependencies: the first colon.
6936 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6937 my ($targets, $dependencies) = ($1, $2);
6938 # Remove the escaped new lines.
6939 # I don't know why, but I have to use a tmp $flat_deps.
6940 my $flat_deps = &flatten ($dependencies);
6941 my @deps = split (' ', $flat_deps);
6943 foreach (split (' ', $targets))
6944 {
6945 # FIXME: 1. We are not robust to people defining several targets
6946 # at once, only some of them being in %dependencies. The
6947 # actions from the targets in %dependencies are usually generated
6948 # from the content of %actions, but if some targets in $targets
6949 # are not in %dependencies the ELSE branch will output
6950 # a rule for all $targets (i.e. the targets which are both
6951 # in %dependencies and $targets will have two rules).
6953 # FIXME: 2. The logic here is not able to output a
6954 # multi-paragraph rule several time (e.g. for each condition
6955 # it is defined for) because it only knows the first paragraph.
6957 # FIXME: 3. We are not robust to people defining a subset
6958 # of a previously defined "multiple-target" rule. E.g.
6959 # 'foo:' after 'foo bar:'.
6961 # Output only if not in FALSE.
6962 if (defined $dependencies{$_} && $cond != FALSE)
6963 {
6964 &depend ($_, @deps);
6965 register_action ($_, $actions);
6966 }
6967 else
6968 {
6969 # Free-lance dependency. Output the rule for all the
6970 # targets instead of one by one.
6971 my @undefined_conds =
6972 Automake::Rule::define ($targets, $file,
6973 $is_am ? RULE_AUTOMAKE : RULE_USER,
6974 $cond, $where);
6975 for my $undefined_cond (@undefined_conds)
6976 {
6977 my $condparagraph = $paragraph;
6978 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6979 $result_rules .= "$spacing$comment$condparagraph\n";
6980 }
6981 if (scalar @undefined_conds == 0)
6982 {
6983 # Remember to discard next paragraphs
6984 # if they belong to this rule.
6985 # (but see also FIXME: #2 above.)
6986 $discard_rule = 1;
6987 }
6988 $comment = $spacing = '';
6989 last;
6990 }
6991 }
6992 }
6994 elsif (/$ASSIGNMENT_PATTERN/mso)
6995 {
6996 my ($var, $type, $val) = ($1, $2, $3);
6997 error $where, "variable '$var' with trailing backslash"
6998 if /\\$/;
7000 $is_rule = 0;
7002 Automake::Variable::define ($var,
7003 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7004 $type, $cond, $val, $comment, $where,
7005 VAR_ASIS)
7006 if $cond != FALSE;
7008 $comment = $spacing = '';
7009 }
7010 else
7011 {
7012 # This isn't an error; it is probably some tokens which
7013 # configure is supposed to replace, such as '@SET-MAKE@',
7014 # or some part of a rule cut by an if/endif.
7015 if (! $cond->false && ! ($is_rule && $discard_rule))
7016 {
7017 s/^/$cond->subst_string/gme;
7018 $result_rules .= "$spacing$comment$_\n";
7019 }
7020 $comment = $spacing = '';
7021 }
7022 }
7024 error ($where, @cond_stack ?
7025 "unterminated conditionals: @cond_stack" :
7026 "too many conditionals closed in include file")
7027 if "@saved_cond_stack" ne "@cond_stack";
7029 return ($comment, $result_vars, $result_rules);
7030 }
7033 # $CONTENTS
7034 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7035 # ------------------------------------------------
7036 # Return contents of a file from $libdir/am, automatically skipping
7037 # macros or rules which are already known.
7038 sub file_contents ($$%)
7039 {
7040 my ($basename, $where, %transform) = @_;
7041 my ($comments, $variables, $rules) =
7042 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7043 %transform);
7044 return "$comments$variables$rules";
7045 }
7048 # @PREFIX
7049 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7050 # -----------------------------------------------------
7051 # Find all variable prefixes that are used for install directories. A
7052 # prefix 'zar' qualifies iff:
7053 #
7054 # * 'zardir' is a variable.
7055 # * 'zar_PRIMARY' is a variable.
7056 #
7057 # As a side effect, it looks for misspellings. It is an error to have
7058 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7059 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7060 # of the same name (with "dir" appended) exists. For instance, if the
7061 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7062 # This is to provide a little extra flexibility in those cases which
7063 # need it.
7064 sub am_primary_prefixes ($$@)
7065 {
7066 my ($primary, $can_dist, @prefixes) = @_;
7068 local $_;
7069 my %valid = map { $_ => 0 } @prefixes;
7070 $valid{'EXTRA'} = 0;
7071 foreach my $var (variables $primary)
7072 {
7073 # Automake is allowed to define variables that look like primaries
7074 # but which aren't. E.g. INSTALL_sh_DATA.
7075 # Autoconf can also define variables like INSTALL_DATA, so
7076 # ignore all configure variables (at least those which are not
7077 # redefined in Makefile.am).
7078 # FIXME: We should make sure that these variables are not
7079 # conditionally defined (or else adjust the condition below).
7080 my $def = $var->def (TRUE);
7081 next if $def && $def->owner != VAR_MAKEFILE;
7083 my $varname = $var->name;
7085 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7086 {
7087 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7088 if ($dist ne '' && ! $can_dist)
7089 {
7090 err_var ($var,
7091 "invalid variable '$varname': 'dist' is forbidden");
7092 }
7093 # Standard directories must be explicitly allowed.
7094 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7095 {
7096 err_var ($var,
7097 "'${X}dir' is not a legitimate directory " .
7098 "for '$primary'");
7099 }
7100 # A not explicitly valid directory is allowed if Xdir is defined.
7101 elsif (! defined $valid{$X} &&
7102 $var->requires_variables ("'$varname' is used", "${X}dir"))
7103 {
7104 # Nothing to do. Any error message has been output
7105 # by $var->requires_variables.
7106 }
7107 else
7108 {
7109 # Ensure all extended prefixes are actually used.
7110 $valid{"$base$dist$X"} = 1;
7111 }
7112 }
7113 else
7114 {
7115 prog_error "unexpected variable name: $varname";
7116 }
7117 }
7119 # Return only those which are actually defined.
7120 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7121 }
7124 # Handle 'where_HOW' variable magic. Does all lookups, generates
7125 # install code, and possibly generates code to define the primary
7126 # variable. The first argument is the name of the .am file to munge,
7127 # the second argument is the primary variable (e.g. HEADERS), and all
7128 # subsequent arguments are possible installation locations.
7129 #
7130 # Returns list of [$location, $value] pairs, where
7131 # $value's are the values in all where_HOW variable, and $location
7132 # there associated location (the place here their parent variables were
7133 # defined).
7134 #
7135 # FIXME: this should be rewritten to be cleaner. It should be broken
7136 # up into multiple functions.
7137 #
7138 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7139 sub am_install_var
7140 {
7141 my (@args) = @_;
7143 my $do_require = 1;
7144 my $can_dist = 0;
7145 my $default_dist = 0;
7146 while (@args)
7147 {
7148 if ($args[0] eq '-noextra')
7149 {
7150 $do_require = 0;
7151 }
7152 elsif ($args[0] eq '-candist')
7153 {
7154 $can_dist = 1;
7155 }
7156 elsif ($args[0] eq '-defaultdist')
7157 {
7158 $default_dist = 1;
7159 $can_dist = 1;
7160 }
7161 elsif ($args[0] !~ /^-/)
7162 {
7163 last;
7164 }
7165 shift (@args);
7166 }
7168 my ($file, $primary, @prefix) = @args;
7170 # Now that configure substitutions are allowed in where_HOW
7171 # variables, it is an error to actually define the primary. We
7172 # allow 'JAVA', as it is customarily used to mean the Java
7173 # interpreter. This is but one of several Java hacks. Similarly,
7174 # 'PYTHON' is customarily used to mean the Python interpreter.
7175 reject_var $primary, "'$primary' is an anachronism"
7176 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7178 # Get the prefixes which are valid and actually used.
7179 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7181 # If a primary includes a configure substitution, then the EXTRA_
7182 # form is required. Otherwise we can't properly do our job.
7183 my $require_extra;
7185 my @used = ();
7186 my @result = ();
7188 foreach my $X (@prefix)
7189 {
7190 my $nodir_name = $X;
7191 my $one_name = $X . '_' . $primary;
7192 my $one_var = var $one_name;
7194 my $strip_subdir = 1;
7195 # If subdir prefix should be preserved, do so.
7196 if ($nodir_name =~ /^nobase_/)
7197 {
7198 $strip_subdir = 0;
7199 $nodir_name =~ s/^nobase_//;
7200 }
7202 # If files should be distributed, do so.
7203 my $dist_p = 0;
7204 if ($can_dist)
7205 {
7206 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7207 || (! $default_dist && $nodir_name =~ /^dist_/));
7208 $nodir_name =~ s/^(dist|nodist)_//;
7209 }
7212 # Use the location of the currently processed variable.
7213 # We are not processing a particular condition, so pick the first
7214 # available.
7215 my $tmpcond = $one_var->conditions->one_cond;
7216 my $where = $one_var->rdef ($tmpcond)->location->clone;
7218 # Append actual contents of where_PRIMARY variable to
7219 # @result, skipping @substitutions@.
7220 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7221 {
7222 my ($loc, $value) = @$locvals;
7223 # Skip configure substitutions.
7224 if ($value =~ /^\@.*\@$/)
7225 {
7226 if ($nodir_name eq 'EXTRA')
7227 {
7228 error ($where,
7229 "'$one_name' contains configure substitution, "
7230 . "but shouldn't");
7231 }
7232 # Check here to make sure variables defined in
7233 # configure.ac do not imply that EXTRA_PRIMARY
7234 # must be defined.
7235 elsif (! defined $configure_vars{$one_name})
7236 {
7237 $require_extra = $one_name
7238 if $do_require;
7239 }
7240 }
7241 else
7242 {
7243 # Strip any $(EXEEXT) suffix the user might have added, or this
7244 # will confuse &handle_source_transform and &check_canonical_spelling.
7245 # We'll add $(EXEEXT) back later anyway.
7246 # Do it here rather than in handle_programs so the uniquifying at the
7247 # end of this function works.
7248 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7249 if $primary eq 'PROGRAMS';
7251 push (@result, $locvals);
7252 }
7253 }
7254 # A blatant hack: we rewrite each _PROGRAMS primary to include
7255 # EXEEXT.
7256 append_exeext { 1 } $one_name
7257 if $primary eq 'PROGRAMS';
7258 # "EXTRA" shouldn't be used when generating clean targets,
7259 # all, or install targets. We used to warn if EXTRA_FOO was
7260 # defined uselessly, but this was annoying.
7261 next
7262 if $nodir_name eq 'EXTRA';
7264 if ($nodir_name eq 'check')
7265 {
7266 push (@check, '$(' . $one_name . ')');
7267 }
7268 else
7269 {
7270 push (@used, '$(' . $one_name . ')');
7271 }
7273 # Is this to be installed?
7274 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7276 # If so, with install-exec? (or install-data?).
7277 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7279 my $check_options_p = $install_p && !! option 'std-options';
7281 # Use the location of the currently processed variable as context.
7282 $where->push_context ("while processing '$one_name'");
7284 # The variable containing all files to distribute.
7285 my $distvar = "\$($one_name)";
7286 $distvar = shadow_unconditionally ($one_name, $where)
7287 if ($dist_p && $one_var->has_conditional_contents);
7289 # Singular form of $PRIMARY.
7290 (my $one_primary = $primary) =~ s/S$//;
7291 $output_rules .= &file_contents ($file, $where,
7292 PRIMARY => $primary,
7293 ONE_PRIMARY => $one_primary,
7294 DIR => $X,
7295 NDIR => $nodir_name,
7296 BASE => $strip_subdir,
7298 EXEC => $exec_p,
7299 INSTALL => $install_p,
7300 DIST => $dist_p,
7301 DISTVAR => $distvar,
7302 'CK-OPTS' => $check_options_p);
7303 }
7305 # The JAVA variable is used as the name of the Java interpreter.
7306 # The PYTHON variable is used as the name of the Python interpreter.
7307 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7308 {
7309 # Define it.
7310 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7311 $output_vars .= "\n";
7312 }
7314 err_var ($require_extra,
7315 "'$require_extra' contains configure substitution,\n"
7316 . "but 'EXTRA_$primary' not defined")
7317 if ($require_extra && ! var ('EXTRA_' . $primary));
7319 # Push here because PRIMARY might be configure time determined.
7320 push (@all, '$(' . $primary . ')')
7321 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7323 # Make the result unique. This lets the user use conditionals in
7324 # a natural way, but still lets us program lazily -- we don't have
7325 # to worry about handling a particular object more than once.
7326 # We will keep only one location per object.
7327 my %result = ();
7328 for my $pair (@result)
7329 {
7330 my ($loc, $val) = @$pair;
7331 $result{$val} = $loc;
7332 }
7333 my @l = sort keys %result;
7334 return map { [$result{$_}->clone, $_] } @l;
7335 }
7338 ################################################################
7340 # Each key in this hash is the name of a directory holding a
7341 # Makefile.in. These variables are local to 'is_make_dir'.
7342 my %make_dirs = ();
7343 my $make_dirs_set = 0;
7345 sub is_make_dir
7346 {
7347 my ($dir) = @_;
7348 if (! $make_dirs_set)
7349 {
7350 foreach my $iter (@configure_input_files)
7351 {
7352 $make_dirs{dirname ($iter)} = 1;
7353 }
7354 # We also want to notice Makefile.in's.
7355 foreach my $iter (@other_input_files)
7356 {
7357 if ($iter =~ /Makefile\.in$/)
7358 {
7359 $make_dirs{dirname ($iter)} = 1;
7360 }
7361 }
7362 $make_dirs_set = 1;
7363 }
7364 return defined $make_dirs{$dir};
7365 }
7367 ################################################################
7369 # Find the aux dir. This should match the algorithm used by
7370 # ./configure. (See the Autoconf documentation for for
7371 # AC_CONFIG_AUX_DIR.)
7372 sub locate_aux_dir ()
7373 {
7374 if (! $config_aux_dir_set_in_configure_ac)
7375 {
7376 # The default auxiliary directory is the first
7377 # of ., .., or ../.. that contains install-sh.
7378 # Assume . if install-sh doesn't exist yet.
7379 for my $dir (qw (. .. ../..))
7380 {
7381 if (-f "$dir/install-sh")
7382 {
7383 $config_aux_dir = $dir;
7384 last;
7385 }
7386 }
7387 $config_aux_dir = '.' unless $config_aux_dir;
7388 }
7389 # Avoid unsightly '/.'s.
7390 $am_config_aux_dir =
7391 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7392 $am_config_aux_dir =~ s,/*$,,;
7393 }
7396 # &push_required_file ($DIR, $FILE, $FULLFILE)
7397 # --------------------------------------------------
7398 # Push the given file onto DIST_COMMON.
7399 sub push_required_file
7400 {
7401 my ($dir, $file, $fullfile) = @_;
7403 # If the file to be distributed is in the same directory of the
7404 # currently processed Makefile.am, then we want to distribute it
7405 # from this same Makefile.am.
7406 if ($dir eq $relative_dir)
7407 {
7408 push_dist_common ($file);
7409 }
7410 # This is needed to allow a construct in a non-top-level Makefile.am
7411 # to require a file in the build-aux directory (see at least the test
7412 # script 'test-driver-is-distributed.sh'). This is related to the
7413 # automake bug#9546. Note that the use of $config_aux_dir instead
7414 # of $am_config_aux_dir here is deliberate and necessary.
7415 elsif ($dir eq $config_aux_dir)
7416 {
7417 push_dist_common ("$am_config_aux_dir/$file");
7418 }
7419 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7420 # We probably need some refactoring of this function and its callers,
7421 # to have a more explicit and systematic handling of all the special
7422 # cases; but, since there are only two of them, this is low-priority
7423 # ATM.
7424 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7425 {
7426 # Avoid unsightly '/.'s.
7427 my $am_config_libobj_dir =
7428 '$(top_srcdir)' .
7429 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7430 $am_config_libobj_dir =~ s|/*$||;
7431 push_dist_common ("$am_config_libobj_dir/$file");
7432 }
7433 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7434 {
7435 # If we are doing the topmost directory, and the file is in a
7436 # subdir which does not have a Makefile, then we distribute it
7437 # here.
7439 # If a required file is above the source tree, it is important
7440 # to prefix it with '$(srcdir)' so that no VPATH search is
7441 # performed. Otherwise problems occur with Make implementations
7442 # that rewrite and simplify rules whose dependencies are found in a
7443 # VPATH location. Here is an example with OSF1/Tru64 Make.
7444 #
7445 # % cat Makefile
7446 # VPATH = sub
7447 # distdir: ../a
7448 # echo ../a
7449 # % ls
7450 # Makefile a
7451 # % make
7452 # echo a
7453 # a
7454 #
7455 # Dependency '../a' was found in 'sub/../a', but this make
7456 # implementation simplified it as 'a'. (Note that the sub/
7457 # directory does not even exist.)
7458 #
7459 # This kind of VPATH rewriting seems hard to cancel. The
7460 # distdir.am hack against VPATH rewriting works only when no
7461 # simplification is done, i.e., for dependencies which are in
7462 # subdirectories, not in enclosing directories. Hence, in
7463 # the latter case we use a full path to make sure no VPATH
7464 # search occurs.
7465 $fullfile = '$(srcdir)/' . $fullfile
7466 if $dir =~ m,^\.\.(?:$|/),;
7468 push_dist_common ($fullfile);
7469 }
7470 else
7471 {
7472 prog_error "a Makefile in relative directory $relative_dir " .
7473 "can't add files in directory $dir to DIST_COMMON";
7474 }
7475 }
7478 # If a file name appears as a key in this hash, then it has already
7479 # been checked for. This allows us not to report the same error more
7480 # than once.
7481 my %required_file_not_found = ();
7483 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7484 # --------------------------------------------------------
7485 # Verify that the file must exist in $DIRECTORY, or install it.
7486 sub required_file_check_or_copy ($$$)
7487 {
7488 my ($where, $dir, $file) = @_;
7490 my $fullfile = "$dir/$file";
7491 my $found_it = 0;
7492 my $dangling_sym = 0;
7494 if (-l $fullfile && ! -f $fullfile)
7495 {
7496 $dangling_sym = 1;
7497 }
7498 elsif (dir_has_case_matching_file ($dir, $file))
7499 {
7500 $found_it = 1;
7501 }
7503 # '--force-missing' only has an effect if '--add-missing' is
7504 # specified.
7505 return
7506 if $found_it && (! $add_missing || ! $force_missing);
7508 # If we've already looked for it, we're done. You might
7509 # wonder why we don't do this before searching for the
7510 # file. If we do that, then something like
7511 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7512 # DIST_COMMON.
7513 if (! $found_it)
7514 {
7515 return if defined $required_file_not_found{$fullfile};
7516 $required_file_not_found{$fullfile} = 1;
7517 }
7518 if ($dangling_sym && $add_missing)
7519 {
7520 unlink ($fullfile);
7521 }
7523 my $trailer = '';
7524 my $trailer2 = '';
7525 my $suppress = 0;
7527 # Only install missing files according to our desired
7528 # strictness level.
7529 my $message = "required file '$fullfile' not found";
7530 if ($add_missing)
7531 {
7532 if (-f "$libdir/$file")
7533 {
7534 $suppress = 1;
7536 # Install the missing file. Symlink if we
7537 # can, copy if we must. Note: delete the file
7538 # first, in case it is a dangling symlink.
7539 $message = "installing '$fullfile'";
7541 # The license file should not be volatile.
7542 if ($file eq "COPYING")
7543 {
7544 $message .= " using GNU General Public License v3 file";
7545 $trailer2 = "\n Consider adding the COPYING file"
7546 . " to the version control system"
7547 . "\n for your code, to avoid questions"
7548 . " about which license your project uses";
7549 }
7551 # Windows Perl will hang if we try to delete a
7552 # file that doesn't exist.
7553 unlink ($fullfile) if -f $fullfile;
7554 if ($symlink_exists && ! $copy_missing)
7555 {
7556 if (! symlink ("$libdir/$file", $fullfile)
7557 || ! -e $fullfile)
7558 {
7559 $suppress = 0;
7560 $trailer = "; error while making link: $!";
7561 }
7562 }
7563 elsif (system ('cp', "$libdir/$file", $fullfile))
7564 {
7565 $suppress = 0;
7566 $trailer = "\n error while copying";
7567 }
7568 set_dir_cache_file ($dir, $file);
7569 }
7570 }
7571 else
7572 {
7573 $trailer = "\n 'automake --add-missing' can install '$file'"
7574 if -f "$libdir/$file";
7575 }
7577 # If --force-missing was specified, and we have
7578 # actually found the file, then do nothing.
7579 return
7580 if $found_it && $force_missing;
7582 # If we couldn't install the file, but it is a target in
7583 # the Makefile, don't print anything. This allows files
7584 # like README, AUTHORS, or THANKS to be generated.
7585 return
7586 if !$suppress && rule $file;
7588 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7589 }
7592 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7593 # ----------------------------------------------------------------------
7594 # Verify that the file must exist in $DIRECTORY, or install it.
7595 # $MYSTRICT is the strictness level at which this file becomes required.
7596 # Worker threads may queue up the action to be serialized by the master,
7597 # if $QUEUE is true
7598 sub require_file_internal ($$$@)
7599 {
7600 my ($where, $mystrict, $dir, $queue, @files) = @_;
7602 return
7603 unless $strictness >= $mystrict;
7605 foreach my $file (@files)
7606 {
7607 push_required_file ($dir, $file, "$dir/$file");
7608 if ($queue)
7609 {
7610 queue_required_file_check_or_copy ($required_conf_file_queue,
7611 QUEUE_CONF_FILE, $relative_dir,
7612 $where, $mystrict, @files);
7613 }
7614 else
7615 {
7616 required_file_check_or_copy ($where, $dir, $file);
7617 }
7618 }
7619 }
7621 # &require_file ($WHERE, $MYSTRICT, @FILES)
7622 # -----------------------------------------
7623 sub require_file ($$@)
7624 {
7625 my ($where, $mystrict, @files) = @_;
7626 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7627 }
7629 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7630 # -----------------------------------------------------------
7631 sub require_file_with_macro ($$$@)
7632 {
7633 my ($cond, $macro, $mystrict, @files) = @_;
7634 $macro = rvar ($macro) unless ref $macro;
7635 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7636 }
7638 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7639 # ----------------------------------------------------------------
7640 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7641 # must be in that directory. Otherwise expect it in the current directory.
7642 sub require_libsource_with_macro ($$$@)
7643 {
7644 my ($cond, $macro, $mystrict, @files) = @_;
7645 $macro = rvar ($macro) unless ref $macro;
7646 if ($config_libobj_dir)
7647 {
7648 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7649 $config_libobj_dir, 0, @files);
7650 }
7651 else
7652 {
7653 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7654 }
7655 }
7657 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7658 # $MYSTRICT, @FILES)
7659 # ---------------------------------------------------------------
7660 sub queue_required_file_check_or_copy ($$$$@)
7661 {
7662 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7663 my @serial_loc;
7664 if (ref $where)
7665 {
7666 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7667 }
7668 else
7669 {
7670 @serial_loc = (QUEUE_STRING, $where);
7671 }
7672 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7673 }
7675 # &require_queued_file_check_or_copy ($QUEUE)
7676 # -------------------------------------------
7677 sub require_queued_file_check_or_copy ($)
7678 {
7679 my ($queue) = @_;
7680 my $where;
7681 my $dir = $queue->dequeue ();
7682 my $loc_key = $queue->dequeue ();
7683 if ($loc_key eq QUEUE_LOCATION)
7684 {
7685 $where = Automake::Location::deserialize ($queue);
7686 }
7687 elsif ($loc_key eq QUEUE_STRING)
7688 {
7689 $where = $queue->dequeue ();
7690 }
7691 else
7692 {
7693 prog_error "unexpected key $loc_key";
7694 }
7695 my $mystrict = $queue->dequeue ();
7696 my $nfiles = $queue->dequeue ();
7697 my @files;
7698 push @files, $queue->dequeue ()
7699 foreach (1 .. $nfiles);
7700 return
7701 unless $strictness >= $mystrict;
7702 foreach my $file (@files)
7703 {
7704 required_file_check_or_copy ($where, $config_aux_dir, $file);
7705 }
7706 }
7708 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7709 # ----------------------------------------------
7710 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7711 sub require_conf_file ($$@)
7712 {
7713 my ($where, $mystrict, @files) = @_;
7714 my $queue = defined $required_conf_file_queue ? 1 : 0;
7715 require_file_internal ($where, $mystrict, $config_aux_dir,
7716 $queue, @files);
7717 }
7720 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7721 # ----------------------------------------------------------------
7722 sub require_conf_file_with_macro ($$$@)
7723 {
7724 my ($cond, $macro, $mystrict, @files) = @_;
7725 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7726 $mystrict, @files);
7727 }
7729 ################################################################
7731 # &require_build_directory ($DIRECTORY)
7732 # -------------------------------------
7733 # Emit rules to create $DIRECTORY if needed, and return
7734 # the file that any target requiring this directory should be made
7735 # dependent upon.
7736 # We don't want to emit the rule twice, and want to reuse it
7737 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7738 sub require_build_directory ($)
7739 {
7740 my $directory = shift;
7742 return $directory_map{$directory} if exists $directory_map{$directory};
7744 my $cdir = File::Spec->canonpath ($directory);
7746 if (exists $directory_map{$cdir})
7747 {
7748 my $stamp = $directory_map{$cdir};
7749 $directory_map{$directory} = $stamp;
7750 return $stamp;
7751 }
7753 my $dirstamp = "$cdir/\$(am__dirstamp)";
7755 $directory_map{$directory} = $dirstamp;
7756 $directory_map{$cdir} = $dirstamp;
7758 # Set a variable for the dirstamp basename.
7759 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7760 '$(am__leading_dot)dirstamp');
7762 # Directory must be removed by 'make distclean'.
7763 $clean_files{$dirstamp} = DIST_CLEAN;
7765 $output_rules .= ("$dirstamp:\n"
7766 . "\t\@\$(MKDIR_P) $directory\n"
7767 . "\t\@: > $dirstamp\n");
7769 return $dirstamp;
7770 }
7772 # &require_build_directory_maybe ($FILE)
7773 # --------------------------------------
7774 # If $FILE lies in a subdirectory, emit a rule to create this
7775 # directory and return the file that $FILE should be made
7776 # dependent upon. Otherwise, just return the empty string.
7777 sub require_build_directory_maybe ($)
7778 {
7779 my $file = shift;
7780 my $directory = dirname ($file);
7782 if ($directory ne '.')
7783 {
7784 return require_build_directory ($directory);
7785 }
7786 else
7787 {
7788 return '';
7789 }
7790 }
7792 ################################################################
7794 # Push a list of files onto dist_common.
7795 sub push_dist_common
7796 {
7797 prog_error "push_dist_common run after handle_dist"
7798 if $handle_dist_run;
7799 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7800 '', INTERNAL, VAR_PRETTY);
7801 }
7804 ################################################################
7806 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7807 # ----------------------------------------------
7808 # Generate a Makefile.in given the name of the corresponding Makefile and
7809 # the name of the file output by config.status.
7810 sub generate_makefile ($$)
7811 {
7812 my ($makefile_am, $makefile_in) = @_;
7814 # Reset all the Makefile.am related variables.
7815 initialize_per_input;
7817 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7818 # warnings for this file. So hold any warning issued before
7819 # we have processed AUTOMAKE_OPTIONS.
7820 buffer_messages ('warning');
7822 # $OUTPUT is encoded. If it contains a ":" then the first element
7823 # is the real output file, and all remaining elements are input
7824 # files. We don't scan or otherwise deal with these input files,
7825 # other than to mark them as dependencies. See
7826 # &scan_autoconf_files for details.
7827 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7829 $relative_dir = dirname ($makefile);
7831 read_main_am_file ($makefile_am, $makefile_in);
7832 if (handle_options)
7833 {
7834 # Process buffered warnings.
7835 flush_messages;
7836 # Fatal error. Just return, so we can continue with next file.
7837 return;
7838 }
7839 # Process buffered warnings.
7840 flush_messages;
7842 # There are a few install-related variables that you should not define.
7843 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7844 {
7845 my $v = var $var;
7846 if ($v)
7847 {
7848 my $def = $v->def (TRUE);
7849 prog_error "$var not defined in condition TRUE"
7850 unless $def;
7851 reject_var $var, "'$var' should not be defined"
7852 if $def->owner != VAR_AUTOMAKE;
7853 }
7854 }
7856 # Catch some obsolete variables.
7857 msg_var ('obsolete', 'INCLUDES',
7858 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7859 if var ('INCLUDES');
7861 # Must do this after reading .am file.
7862 define_variable ('subdir', $relative_dir, INTERNAL);
7864 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7865 # recursive rules are enabled.
7866 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7867 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7869 # Check first, because we might modify some state.
7870 check_gnu_standards;
7871 check_gnits_standards;
7873 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7874 handle_gettext;
7875 handle_libraries;
7876 handle_ltlibraries;
7877 handle_programs;
7878 handle_scripts;
7880 handle_silent;
7882 # These must be run after all the sources are scanned. They
7883 # use variables defined by &handle_libraries, &handle_ltlibraries,
7884 # or &handle_programs.
7885 handle_compile;
7886 handle_languages;
7887 handle_libtool;
7889 # Variables used by distdir.am and tags.am.
7890 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7891 if (! option 'no-dist')
7892 {
7893 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7894 }
7896 handle_texinfo;
7897 handle_emacs_lisp;
7898 handle_python;
7899 handle_java;
7900 handle_man_pages;
7901 handle_data;
7902 handle_headers;
7903 handle_subdirs;
7904 handle_user_recursion;
7905 handle_tags;
7906 handle_minor_options;
7907 # Must come after handle_programs so that %known_programs is up-to-date.
7908 handle_tests;
7910 # This must come after most other rules.
7911 handle_dist;
7913 handle_footer;
7914 do_check_merge_target;
7915 handle_all ($makefile);
7917 # FIXME: Gross!
7918 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7919 {
7920 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7921 }
7922 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7923 {
7924 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
7925 }
7927 handle_install;
7928 handle_clean ($makefile);
7929 handle_factored_dependencies;
7931 # Comes last, because all the above procedures may have
7932 # defined or overridden variables.
7933 $output_vars .= output_variables;
7935 check_typos;
7937 if ($exit_code != 0)
7938 {
7939 verb "not writing $makefile_in because of earlier errors";
7940 return;
7941 }
7943 my $am_relative_dir = dirname ($makefile_am);
7944 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
7946 # We make sure that 'all:' is the first target.
7947 my $output =
7948 "$output_vars$output_all$output_header$output_rules$output_trailer";
7950 # Decide whether we must update the output file or not.
7951 # We have to update in the following situations.
7952 # * $force_generation is set.
7953 # * any of the output dependencies is younger than the output
7954 # * the contents of the output is different (this can happen
7955 # if the project has been populated with a file listed in
7956 # @common_files since the last run).
7957 # Output's dependencies are split in two sets:
7958 # * dependencies which are also configure dependencies
7959 # These do not change between each Makefile.am
7960 # * other dependencies, specific to the Makefile.am being processed
7961 # (such as the Makefile.am itself, or any Makefile fragment
7962 # it includes).
7963 my $timestamp = mtime $makefile_in;
7964 if (! $force_generation
7965 && $configure_deps_greatest_timestamp < $timestamp
7966 && $output_deps_greatest_timestamp < $timestamp
7967 && $output eq contents ($makefile_in))
7968 {
7969 verb "$makefile_in unchanged";
7970 # No need to update.
7971 return;
7972 }
7974 if (-e $makefile_in)
7975 {
7976 unlink ($makefile_in)
7977 or fatal "cannot remove $makefile_in: $!";
7978 }
7980 my $gm_file = new Automake::XFile "> $makefile_in";
7981 verb "creating $makefile_in";
7982 print $gm_file $output;
7983 }
7985 ################################################################
7990 ################################################################
7992 # Helper function for usage().
7993 sub print_autodist_files (@)
7994 {
7995 my @lcomm = sort (&uniq (@_));
7997 my @four;
7998 format USAGE_FORMAT =
7999 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8000 $four[0], $four[1], $four[2], $four[3]
8001 .
8002 local $~ = "USAGE_FORMAT";
8004 my $cols = 4;
8005 my $rows = int(@lcomm / $cols);
8006 my $rest = @lcomm % $cols;
8008 if ($rest)
8009 {
8010 $rows++;
8011 }
8012 else
8013 {
8014 $rest = $cols;
8015 }
8017 for (my $y = 0; $y < $rows; $y++)
8018 {
8019 @four = ("", "", "", "");
8020 for (my $x = 0; $x < $cols; $x++)
8021 {
8022 last if $y + 1 == $rows && $x == $rest;
8024 my $idx = (($x > $rest)
8025 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8026 : ($rows * $x));
8028 $idx += $y;
8029 $four[$x] = $lcomm[$idx];
8030 }
8031 write;
8032 }
8033 }
8036 # Print usage information.
8037 sub usage ()
8038 {
8039 print "Usage: $0 [OPTION]... [Makefile]...
8041 Generate Makefile.in for configure from Makefile.am.
8043 Operation modes:
8044 --help print this help, then exit
8045 --version print version number, then exit
8046 -v, --verbose verbosely list files processed
8047 --no-force only update Makefile.in's that are out of date
8048 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8050 Dependency tracking:
8051 -i, --ignore-deps disable dependency tracking code
8052 --include-deps enable dependency tracking code
8054 Flavors:
8055 --foreign set strictness to foreign
8056 --gnits set strictness to gnits
8057 --gnu set strictness to gnu
8059 Library files:
8060 -a, --add-missing add missing standard files to package
8061 --libdir=DIR set directory storing library files
8062 --print-libdir print directory storing library files
8063 -c, --copy with -a, copy missing files (default is symlink)
8064 -f, --force-missing force update of standard files
8066 ";
8067 Automake::ChannelDefs::usage;
8069 print "\nFiles automatically distributed if found " .
8070 "(always):\n";
8071 print_autodist_files @common_files;
8072 print "\nFiles automatically distributed if found " .
8073 "(under certain conditions):\n";
8074 print_autodist_files @common_sometimes;
8076 print '
8077 Report bugs to <@PACKAGE_BUGREPORT@>.
8078 GNU Automake home page: <@PACKAGE_URL@>.
8079 General help using GNU software: <http://www.gnu.org/gethelp/>.
8080 ';
8082 # --help always returns 0 per GNU standards.
8083 exit 0;
8084 }
8087 # &version ()
8088 # -----------
8089 # Print version information
8090 sub version ()
8091 {
8092 print <<EOF;
8093 automake (GNU $PACKAGE) $VERSION
8094 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8095 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8096 This is free software: you are free to change and redistribute it.
8097 There is NO WARRANTY, to the extent permitted by law.
8099 Written by Tom Tromey <tromey\@redhat.com>
8100 and Alexandre Duret-Lutz <adl\@gnu.org>.
8101 EOF
8102 # --version always returns 0 per GNU standards.
8103 exit 0;
8104 }
8106 ################################################################
8108 # Parse command line.
8109 sub parse_arguments ()
8110 {
8111 my $strict = 'gnu';
8112 my $ignore_deps = 0;
8113 my @warnings = ();
8115 my %cli_options =
8116 (
8117 'version' => \&version,
8118 'help' => \&usage,
8119 'libdir=s' => \$libdir,
8120 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8121 'gnu' => sub { $strict = 'gnu'; },
8122 'gnits' => sub { $strict = 'gnits'; },
8123 'foreign' => sub { $strict = 'foreign'; },
8124 'include-deps' => sub { $ignore_deps = 0; },
8125 'i|ignore-deps' => sub { $ignore_deps = 1; },
8126 'no-force' => sub { $force_generation = 0; },
8127 'f|force-missing' => \$force_missing,
8128 'a|add-missing' => \$add_missing,
8129 'c|copy' => \$copy_missing,
8130 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8131 'W|warnings=s' => \@warnings,
8132 );
8134 use Automake::Getopt ();
8135 Automake::Getopt::parse_options %cli_options;
8137 set_strictness ($strict);
8138 my $cli_where = new Automake::Location;
8139 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8140 for my $warning (@warnings)
8141 {
8142 &parse_warnings ('-W', $warning);
8143 }
8145 return unless @ARGV;
8147 my $errspec = 0;
8148 foreach my $arg (@ARGV)
8149 {
8150 fatal ("empty argument\nTry '$0 --help' for more information")
8151 if ($arg eq '');
8153 # Handle $local:$input syntax.
8154 my ($local, @rest) = split (/:/, $arg);
8155 @rest = ("$local.in",) unless @rest;
8156 my $input = locate_am @rest;
8157 if ($input)
8158 {
8159 push @input_files, $input;
8160 $output_files{$input} = join (':', ($local, @rest));
8161 }
8162 else
8163 {
8164 error "no Automake input file found for '$arg'";
8165 $errspec = 1;
8166 }
8167 }
8168 fatal "no input file found among supplied arguments"
8169 if $errspec && ! @input_files;
8170 }
8173 # handle_makefile ($MAKEFILE_IN)
8174 # ------------------------------
8175 # Deal with $MAKEFILE_IN.
8176 sub handle_makefile ($)
8177 {
8178 my ($file) = @_;
8179 ($am_file = $file) =~ s/\.in$//;
8180 if (! -f ($am_file . '.am'))
8181 {
8182 error "'$am_file.am' does not exist";
8183 }
8184 else
8185 {
8186 # Any warning setting now local to this Makefile.am.
8187 dup_channel_setup;
8189 generate_makefile ($am_file . '.am', $file);
8191 # Back out any warning setting.
8192 drop_channel_setup;
8193 }
8194 }
8196 # handle_makefiles_serial ()
8197 # --------------------------
8198 # Deal with all makefiles, without threads.
8199 sub handle_makefiles_serial ()
8200 {
8201 foreach my $file (@input_files)
8202 {
8203 handle_makefile ($file);
8204 }
8205 }
8207 # get_number_of_threads ()
8208 # ------------------------
8209 # Logic for deciding how many worker threads to use.
8210 sub get_number_of_threads
8211 {
8212 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8214 $nthreads = 0
8215 unless $nthreads =~ /^[0-9]+$/;
8217 # It doesn't make sense to use more threads than makefiles,
8218 my $max_threads = @input_files;
8220 if ($nthreads > $max_threads)
8221 {
8222 $nthreads = $max_threads;
8223 }
8224 return $nthreads;
8225 }
8227 # handle_makefiles_threaded ($NTHREADS)
8228 # -------------------------------------
8229 # Deal with all makefiles, using threads. The general strategy is to
8230 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8231 # worker threads push back everything that needs serialization:
8232 # * warning and (normal) error messages, for stable stderr output
8233 # order and content (avoiding duplicates, for example),
8234 # * races when installing aux files (and respective messages),
8235 # * races when collecting aux files for distribution.
8236 #
8237 # The latter requires that the makefile that deals with the aux dir
8238 # files be handled last, done by the master thread.
8239 sub handle_makefiles_threaded ($)
8240 {
8241 my ($nthreads) = @_;
8243 # The file queue distributes all makefiles, the message queues
8244 # collect all serializations needed for respective files.
8245 my $file_queue = Thread::Queue->new;
8246 my %msg_queues;
8247 foreach my $file (@input_files)
8248 {
8249 $msg_queues{$file} = Thread::Queue->new;
8250 }
8252 verb "spawning $nthreads worker threads";
8253 my @threads = (1 .. $nthreads);
8254 foreach my $t (@threads)
8255 {
8256 $t = threads->new (sub
8257 {
8258 while (my $file = $file_queue->dequeue)
8259 {
8260 verb "handling $file";
8261 my $queue = $msg_queues{$file};
8262 setup_channel_queue ($queue, QUEUE_MESSAGE);
8263 $required_conf_file_queue = $queue;
8264 handle_makefile ($file);
8265 $queue->enqueue (undef);
8266 setup_channel_queue (undef, undef);
8267 $required_conf_file_queue = undef;
8268 }
8269 return $exit_code;
8270 });
8271 }
8273 # Queue all makefiles.
8274 verb "queuing " . @input_files . " input files";
8275 $file_queue->enqueue (@input_files, (undef) x @threads);
8277 # Collect and process serializations.
8278 foreach my $file (@input_files)
8279 {
8280 verb "dequeuing messages for " . $file;
8281 reset_local_duplicates ();
8282 my $queue = $msg_queues{$file};
8283 while (my $key = $queue->dequeue)
8284 {
8285 if ($key eq QUEUE_MESSAGE)
8286 {
8287 pop_channel_queue ($queue);
8288 }
8289 elsif ($key eq QUEUE_CONF_FILE)
8290 {
8291 require_queued_file_check_or_copy ($queue);
8292 }
8293 else
8294 {
8295 prog_error "unexpected key $key";
8296 }
8297 }
8298 }
8300 foreach my $t (@threads)
8301 {
8302 my @exit_thread = $t->join;
8303 $exit_code = $exit_thread[0]
8304 if ($exit_thread[0] > $exit_code);
8305 }
8306 }
8308 ################################################################
8310 # Parse the WARNINGS environment variable.
8311 parse_WARNINGS;
8313 # Parse command line.
8314 parse_arguments;
8316 $configure_ac = require_configure_ac;
8318 # Do configure.ac scan only once.
8319 scan_autoconf_files;
8321 if (! @input_files)
8322 {
8323 my $msg = '';
8324 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8325 if -f 'Makefile.am';
8326 fatal ("no 'Makefile.am' found for any configure output$msg");
8327 }
8329 my $nthreads = get_number_of_threads ();
8331 if ($perl_threads && $nthreads >= 1)
8332 {
8333 handle_makefiles_threaded ($nthreads);
8334 }
8335 else
8336 {
8337 handle_makefiles_serial ();
8338 }
8340 exit $exit_code;
8343 ### Setup "GNU" style for perl-mode and cperl-mode.
8344 ## Local Variables:
8345 ## perl-indent-level: 2
8346 ## perl-continued-statement-offset: 2
8347 ## perl-continued-brace-offset: 0
8348 ## perl-brace-offset: 0
8349 ## perl-brace-imaginary-offset: 0
8350 ## perl-label-offset: -2
8351 ## cperl-indent-level: 2
8352 ## cperl-brace-offset: 0
8353 ## cperl-continued-brace-offset: 0
8354 ## cperl-label-offset: -2
8355 ## cperl-extra-newline-before-brace: t
8356 ## cperl-merge-trailing-else: nil
8357 ## cperl-continued-statement-offset: 2
8358 ## End: