| blob | 32389f4ae00b81ef3c9111a9fefc448d9f5eba68 |
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) 1994-2012 Free Software Foundation, Inc.
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2, or (at your option)
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 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
33 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
35 # Override SHELL. This is required on DJGPP so that system() uses
36 # bash, not COMMAND.COM which doesn't quote arguments properly.
37 # Other systems aren't expected to use $SHELL when Automake
38 # runs, but it should be safe to drop the "if DJGPP" guard if
39 # it turns up other systems need the same thing. After all,
40 # if SHELL is used, ./configure's SHELL is always better than
41 # the user's SHELL (which may be something like tcsh).
42 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
43 }
45 use Class::Struct ();
46 Class::Struct::struct (
47 # Short name of the language (c, f77...).
48 'name' => "\$",
49 # Nice name of the language (C, Fortran 77...).
50 'Name' => "\$",
52 # List of configure variables which must be defined.
53 'config_vars' => '@',
55 # 'pure' is '1' or ''. A 'pure' language is one where, if
56 # all the files in a directory are of that language, then we
57 # do not require the C compiler or any code to call it.
58 'pure' => "\$",
60 'autodep' => "\$",
62 # Name of the compiling variable (COMPILE).
63 'compiler' => "\$",
64 # Content of the compiling variable.
65 'compile' => "\$",
66 # Flag to require compilation without linking (-c).
67 'compile_flag' => "\$",
68 'extensions' => '@',
69 # A subroutine to compute a list of possible extensions of
70 # the product given the input extensions.
71 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
72 'output_extensions' => "\$",
73 # A list of flag variables used in 'compile'.
74 # (defaults to [])
75 'flags' => "@",
77 # Any tag to pass to libtool while compiling.
78 'libtool_tag' => "\$",
80 # The file to use when generating rules for this language.
81 # The default is 'depend2'.
82 'rule_file' => "\$",
84 # Name of the linking variable (LINK).
85 'linker' => "\$",
86 # Content of the linking variable.
87 'link' => "\$",
89 # Name of the compiler variable (CC).
90 'ccer' => "\$",
92 # Name of the linker variable (LD).
93 'lder' => "\$",
94 # Content of the linker variable ($(CC)).
95 'ld' => "\$",
97 # Flag to specify the output file (-o).
98 'output_flag' => "\$",
99 '_finish' => "\$",
101 # This is a subroutine which is called whenever we finally
102 # determine the context in which a source file will be
103 # compiled.
104 '_target_hook' => "\$",
106 # If TRUE, nodist_ sources will be compiled using specific rules
107 # (i.e. not inference rules). The default is FALSE.
108 'nodist_specific' => "\$");
111 sub finish ($)
112 {
113 my ($self) = @_;
114 if (defined $self->_finish)
115 {
116 &{$self->_finish} (@_);
117 }
118 }
120 sub target_hook ($$$$%)
121 {
122 my ($self) = @_;
123 if (defined $self->_target_hook)
124 {
125 &{$self->_target_hook} (@_);
126 }
127 }
129 package Automake;
131 use strict;
132 use Automake::Config;
133 BEGIN
134 {
135 if ($perl_threads)
136 {
137 require threads;
138 import threads;
139 require Thread::Queue;
140 import Thread::Queue;
141 }
142 }
143 use Automake::General;
144 use Automake::XFile;
145 use Automake::Channels;
146 use Automake::ChannelDefs;
147 use Automake::Configure_ac;
148 use Automake::FileUtils;
149 use Automake::Location;
150 use Automake::Condition qw/TRUE FALSE/;
151 use Automake::DisjConditions;
152 use Automake::Options;
153 use Automake::Variable;
154 use Automake::VarDef;
155 use Automake::Rule;
156 use Automake::RuleDef;
157 use Automake::Wrap 'makefile_wrap';
158 use File::Basename;
159 use File::Spec;
160 use Carp;
162 ## ----------- ##
163 ## Constants. ##
164 ## ----------- ##
166 # Some regular expressions. One reason to put them here is that it
167 # makes indentation work better in Emacs.
169 # Writing singled-quoted-$-terminated regexes is a pain because
170 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
171 # by a closing quote. Letting perl-mode think the quote is not closed
172 # leads to all sort of misindentations. On the other hand, defining
173 # regexes as double-quoted strings is far less readable. So usually
174 # we will write:
175 #
176 # $REGEX = '^regex_value' . "\$";
178 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
179 my $WHITE_PATTERN = '^\s*' . "\$";
180 my $COMMENT_PATTERN = '^#';
181 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
182 # A rule has three parts: a list of targets, a list of dependencies,
183 # and optionally actions.
184 my $RULE_PATTERN =
185 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
187 # Only recognize leading spaces, not leading tabs. If we recognize
188 # leading tabs here then we need to make the reader smarter, because
189 # otherwise it will think rules like 'foo=bar; \' are errors.
190 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
191 # This pattern recognizes a Gnits version id and sets $1 if the
192 # release is an alpha release. We also allow a suffix which can be
193 # used to extend the version number with a "fork" identifier.
194 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
196 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
197 my $ELSE_PATTERN =
198 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
199 my $ENDIF_PATTERN =
200 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
201 my $PATH_PATTERN = '(\w|[+/.-])+';
202 # This will pass through anything not of the prescribed form.
203 my $INCLUDE_PATTERN = ('^include\s+'
204 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
205 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
206 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
208 # Directories installed during 'install-exec' phase.
209 my $EXEC_DIR_PATTERN =
210 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
212 # Values for AC_CANONICAL_*
213 use constant AC_CANONICAL_BUILD => 1;
214 use constant AC_CANONICAL_HOST => 2;
215 use constant AC_CANONICAL_TARGET => 3;
217 # Values indicating when something should be cleaned.
218 use constant MOSTLY_CLEAN => 0;
219 use constant CLEAN => 1;
220 use constant DIST_CLEAN => 2;
221 use constant MAINTAINER_CLEAN => 3;
223 # Libtool files.
224 my @libtool_files = qw(ltmain.sh config.guess config.sub);
225 # ltconfig appears here for compatibility with old versions of libtool.
226 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
228 # Commonly found files we look for and automatically include in
229 # DISTFILES.
230 my @common_files =
231 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
232 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
233 ar-lib compile config.guess config.rpath
234 config.sub depcomp install-sh libversion.in mdate-sh
235 missing mkinstalldirs py-compile texinfo.tex ylwrap),
236 @libtool_files, @libtool_sometimes);
238 # Commonly used files we auto-include, but only sometimes. This list
239 # is used for the --help output only.
240 my @common_sometimes =
241 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
242 configure.ac configure.in stamp-vti);
244 # Standard directories from the GNU Coding Standards, and additional
245 # pkg* directories from Automake. Stored in a hash for fast member check.
246 my %standard_prefix =
247 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
248 lib libexec lisp locale localstate man man1 man2
249 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
250 pkgdata pkginclude pkglib pkglibexec ps sbin
251 sharedstate sysconf));
253 # Copyright on generated Makefile.ins.
254 my $gen_copyright = "\
255 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
257 # This Makefile.in is free software; the Free Software Foundation
258 # gives unlimited permission to copy and/or distribute it,
259 # with or without modifications, as long as this notice is preserved.
261 # This program is distributed in the hope that it will be useful,
262 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
263 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
264 # PARTICULAR PURPOSE.
265 ";
267 # These constants are returned by the lang_*_rewrite functions.
268 # LANG_SUBDIR means that the resulting object file should be in a
269 # subdir if the source file is. In this case the file name cannot
270 # have '..' components.
271 use constant LANG_IGNORE => 0;
272 use constant LANG_PROCESS => 1;
273 use constant LANG_SUBDIR => 2;
275 # These are used when keeping track of whether an object can be built
276 # by two different paths.
277 use constant COMPILE_LIBTOOL => 1;
278 use constant COMPILE_ORDINARY => 2;
280 # We can't always associate a location to a variable or a rule,
281 # when it's defined by Automake. We use INTERNAL in this case.
282 use constant INTERNAL => new Automake::Location;
284 # Serialization keys for message queues.
285 use constant QUEUE_MESSAGE => "msg";
286 use constant QUEUE_CONF_FILE => "conf file";
287 use constant QUEUE_LOCATION => "location";
288 use constant QUEUE_STRING => "string";
290 ## ---------------------------------- ##
291 ## Variables related to the options. ##
292 ## ---------------------------------- ##
294 # TRUE if we should always generate Makefile.in.
295 my $force_generation = 1;
297 # From the Perl manual.
298 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
300 # TRUE if missing standard files should be installed.
301 my $add_missing = 0;
303 # TRUE if we should copy missing files; otherwise symlink if possible.
304 my $copy_missing = 0;
306 # TRUE if we should always update files that we know about.
307 my $force_missing = 0;
310 ## ---------------------------------------- ##
311 ## Variables filled during files scanning. ##
312 ## ---------------------------------------- ##
314 # Name of the configure.ac file.
315 my $configure_ac;
317 # Files found by scanning configure.ac for LIBOBJS.
318 my %libsources = ();
320 # Names used in AC_CONFIG_HEADER call.
321 my @config_headers = ();
323 # Names used in AC_CONFIG_LINKS call.
324 my @config_links = ();
326 # List of Makefile.am's to process, and their corresponding outputs.
327 my @input_files = ();
328 my %output_files = ();
330 # Complete list of Makefile.am's that exist.
331 my @configure_input_files = ();
333 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
334 # and their outputs.
335 my @other_input_files = ();
336 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
337 # The keys are the files created by these macros.
338 my %ac_config_files_location = ();
339 # The condition under which AC_CONFIG_FOOS appears.
340 my %ac_config_files_condition = ();
342 # Directory to search for configure-required files. This
343 # will be computed by &locate_aux_dir and can be set using
344 # AC_CONFIG_AUX_DIR in configure.ac.
345 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
346 my $config_aux_dir = '';
347 my $config_aux_dir_set_in_configure_ac = 0;
348 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
349 # in Makefiles.
350 my $am_config_aux_dir = '';
352 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
353 # in configure.ac.
354 my $config_libobj_dir = '';
356 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
357 my $seen_gettext = 0;
358 # Whether AM_GNU_GETTEXT([external]) is used.
359 my $seen_gettext_external = 0;
360 # Where AM_GNU_GETTEXT appears.
361 my $ac_gettext_location;
362 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
363 my $seen_gettext_intl = 0;
365 # The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
366 my @extra_recursive_targets = ();
368 # Lists of tags supported by Libtool.
369 my %libtool_tags = ();
370 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
371 # uses AC_REQUIRE_AUX_FILE.
372 my $libtool_new_api = 0;
374 # Most important AC_CANONICAL_* macro seen so far.
375 my $seen_canonical = 0;
377 # Where AM_MAINTAINER_MODE appears.
378 my $seen_maint_mode;
380 # Actual version we've seen.
381 my $package_version = '';
383 # Where version is defined.
384 my $package_version_location;
386 # TRUE if we've seen AM_PROG_AR
387 my $seen_ar = 0;
389 # TRUE if we've seen AM_PROG_CC_C_O
390 my $seen_cc_c_o = 0;
392 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
393 my %required_aux_file = ();
395 # Where AM_INIT_AUTOMAKE is called;
396 my $seen_init_automake = 0;
398 # TRUE if we've seen AM_AUTOMAKE_VERSION.
399 my $seen_automake_version = 0;
401 # Hash table of discovered configure substitutions. Keys are names,
402 # values are 'FILE:LINE' strings which are used by error message
403 # generation.
404 my %configure_vars = ();
406 # Ignored configure substitutions (i.e., variables not to be output in
407 # Makefile.in)
408 my %ignored_configure_vars = ();
410 # Files included by $configure_ac.
411 my @configure_deps = ();
413 # Greatest timestamp of configure's dependencies.
414 my $configure_deps_greatest_timestamp = 0;
416 # Hash table of AM_CONDITIONAL variables seen in configure.
417 my %configure_cond = ();
419 # This maps extensions onto language names.
420 my %extension_map = ();
422 # List of the DIST_COMMON files we discovered while reading
423 # configure.ac.
424 my $configure_dist_common = '';
426 # This maps languages names onto objects.
427 my %languages = ();
428 # Maps each linker variable onto a language object.
429 my %link_languages = ();
431 # maps extensions to needed source flags.
432 my %sourceflags = ();
434 # List of targets we must always output.
435 # FIXME: Complete, and remove falsely required targets.
436 my %required_targets =
437 (
438 'all' => 1,
439 'dvi' => 1,
440 'pdf' => 1,
441 'ps' => 1,
442 'info' => 1,
443 'install-info' => 1,
444 'install' => 1,
445 'install-data' => 1,
446 'install-exec' => 1,
447 'uninstall' => 1,
449 # FIXME: Not required, temporary hacks.
450 # Well, actually they are sort of required: the -recursive
451 # targets will run them anyway...
452 'html-am' => 1,
453 'dvi-am' => 1,
454 'pdf-am' => 1,
455 'ps-am' => 1,
456 'info-am' => 1,
457 'install-data-am' => 1,
458 'install-exec-am' => 1,
459 'install-html-am' => 1,
460 'install-dvi-am' => 1,
461 'install-pdf-am' => 1,
462 'install-ps-am' => 1,
463 'install-info-am' => 1,
464 'installcheck-am' => 1,
465 'uninstall-am' => 1,
466 'tags-am' => 1,
467 'ctags-am' => 1,
468 'cscopelist-am' => 1,
469 'install-man' => 1,
470 );
472 # Queue to push require_conf_file requirements to.
473 my $required_conf_file_queue;
475 # The name of the Makefile currently being processed.
476 my $am_file = 'BUG';
478 ################################################################
480 ## ------------------------------------------ ##
481 ## Variables reset by &initialize_per_input. ##
482 ## ------------------------------------------ ##
484 # Relative dir of the output makefile.
485 my $relative_dir;
487 # Greatest timestamp of the output's dependencies (excluding
488 # configure's dependencies).
489 my $output_deps_greatest_timestamp;
491 # These variables are used when generating each Makefile.in.
492 # They hold the Makefile.in until it is ready to be printed.
493 my $output_vars;
494 my $output_all;
495 my $output_header;
496 my $output_rules;
497 my $output_trailer;
499 # This is the conditional stack, updated on if/else/endif, and
500 # used to build Condition objects.
501 my @cond_stack;
503 # This holds the set of included files.
504 my @include_stack;
506 # List of dependencies for the obvious targets.
507 my @all;
508 my @check;
509 my @check_tests;
511 # Keys in this hash table are files to delete. The associated
512 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
513 my %clean_files;
515 # Keys in this hash table are object files or other files in
516 # subdirectories which need to be removed. This only holds files
517 # which are created by compilations. The value in the hash indicates
518 # when the file should be removed.
519 my %compile_clean_files;
521 # Keys in this hash table are directories where we expect to build a
522 # libtool object. We use this information to decide what directories
523 # to delete.
524 my %libtool_clean_directories;
526 # Value of $(SOURCES), used by tags.am.
527 my @sources;
528 # Sources which go in the distribution.
529 my @dist_sources;
531 # This hash maps object file names onto their corresponding source
532 # file names. This is used to ensure that each object is created
533 # by a single source file.
534 my %object_map;
536 # This hash maps object file names onto an integer value representing
537 # whether this object has been built via ordinary compilation or
538 # libtool compilation (the COMPILE_* constants).
539 my %object_compilation_map;
542 # This keeps track of the directories for which we've already
543 # created dirstamp code. Keys are directories, values are stamp files.
544 # Several keys can share the same stamp files if they are equivalent
545 # (as are './/foo' and 'foo').
546 my %directory_map;
548 # All .P files.
549 my %dep_files;
551 # This is a list of all targets to run during "make dist".
552 my @dist_targets;
554 # Keep track of all programs declared in this Makefile, without
555 # $(EXEEXT). @substitutions@ are not listed.
556 my %known_programs;
557 my %known_libraries;
559 # This keeps track of which extensions we've seen (that we care
560 # about).
561 my %extension_seen;
563 # This is random scratch space for the language finish functions.
564 # Don't randomly overwrite it; examine other uses of keys first.
565 my %language_scratch;
567 # We keep track of which objects need special (per-executable)
568 # handling on a per-language basis.
569 my %lang_specific_files;
571 # This is set when 'handle_dist' has finished. Once this happens,
572 # we should no longer push on dist_common.
573 my $handle_dist_run;
575 # Used to store a set of linkers needed to generate the sources currently
576 # under consideration.
577 my %linkers_used;
579 # True if we need 'LINK' defined. This is a hack.
580 my $need_link;
582 # Does the generated Makefile have to build some compiled object
583 # (for binary programs, or plain or libtool libraries)?
584 my $must_handle_compiled_objects;
586 # Record each file processed by make_paragraphs.
587 my %transformed_files;
589 ################################################################
591 ## ---------------------------------------------- ##
592 ## Variables not reset by &initialize_per_input. ##
593 ## ---------------------------------------------- ##
595 # Cache each file processed by make_paragraphs.
596 # (This is different from %transformed_files because
597 # %transformed_files is reset for each file while %am_file_cache
598 # it global to the run.)
599 my %am_file_cache;
601 ################################################################
603 # var_SUFFIXES_trigger ($TYPE, $VALUE)
604 # ------------------------------------
605 # This is called by Automake::Variable::define() when SUFFIXES
606 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
607 # The work here needs to be performed as a side-effect of the
608 # macro_define() call because SUFFIXES definitions impact
609 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
610 # the input am file.
611 sub var_SUFFIXES_trigger ($$)
612 {
613 my ($type, $value) = @_;
614 accept_extensions (split (' ', $value));
615 }
616 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
618 ################################################################
620 ## --------------------------------- ##
621 ## Forward subroutine declarations. ##
622 ## --------------------------------- ##
623 sub register_language (%);
624 sub file_contents_internal ($$$%);
625 sub define_files_variable ($\@$$);
628 # &initialize_per_input ()
629 # ------------------------
630 # (Re)-Initialize per-Makefile.am variables.
631 sub initialize_per_input ()
632 {
633 reset_local_duplicates ();
635 $relative_dir = undef;
637 $output_deps_greatest_timestamp = 0;
639 $output_vars = '';
640 $output_all = '';
641 $output_header = '';
642 $output_rules = '';
643 $output_trailer = '';
645 Automake::Options::reset;
646 Automake::Variable::reset;
647 Automake::Rule::reset;
649 @cond_stack = ();
651 @include_stack = ();
653 @all = ();
654 @check = ();
655 @check_tests = ();
657 %clean_files = ();
658 %compile_clean_files = ();
660 # We always include '.'. This isn't strictly correct.
661 %libtool_clean_directories = ('.' => 1);
663 @sources = ();
664 @dist_sources = ();
666 %object_map = ();
667 %object_compilation_map = ();
669 %directory_map = ();
671 %dep_files = ();
673 @dist_targets = ();
675 %known_programs = ();
676 %known_libraries= ();
678 %extension_seen = ();
680 %language_scratch = ();
682 %lang_specific_files = ();
684 $handle_dist_run = 0;
686 $need_link = 0;
688 $must_handle_compiled_objects = 0;
690 %transformed_files = ();
691 }
694 ################################################################
696 # Initialize our list of languages that are internally supported.
698 # C.
699 register_language ('name' => 'c',
700 'Name' => 'C',
701 'config_vars' => ['CC'],
702 'autodep' => '',
703 'flags' => ['CFLAGS', 'CPPFLAGS'],
704 'ccer' => 'CC',
705 'compiler' => 'COMPILE',
706 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
707 'lder' => 'CCLD',
708 'ld' => '$(CC)',
709 'linker' => 'LINK',
710 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
711 'compile_flag' => '-c',
712 'libtool_tag' => 'CC',
713 'extensions' => ['.c']);
715 # C++.
716 register_language ('name' => 'cxx',
717 'Name' => 'C++',
718 'config_vars' => ['CXX'],
719 'linker' => 'CXXLINK',
720 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
721 'autodep' => 'CXX',
722 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
723 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
724 'ccer' => 'CXX',
725 'compiler' => 'CXXCOMPILE',
726 'compile_flag' => '-c',
727 'output_flag' => '-o',
728 'libtool_tag' => 'CXX',
729 'lder' => 'CXXLD',
730 'ld' => '$(CXX)',
731 'pure' => 1,
732 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
734 # Objective C.
735 register_language ('name' => 'objc',
736 'Name' => 'Objective C',
737 'config_vars' => ['OBJC'],
738 'linker' => 'OBJCLINK',
739 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
740 'autodep' => 'OBJC',
741 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
742 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
743 'ccer' => 'OBJC',
744 'compiler' => 'OBJCCOMPILE',
745 'compile_flag' => '-c',
746 'output_flag' => '-o',
747 'lder' => 'OBJCLD',
748 'ld' => '$(OBJC)',
749 'pure' => 1,
750 'extensions' => ['.m']);
752 # Objective C++.
753 register_language ('name' => 'objcxx',
754 'Name' => 'Objective C++',
755 'config_vars' => ['OBJCXX'],
756 'linker' => 'OBJCXXLINK',
757 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
758 'autodep' => 'OBJCXX',
759 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
760 'compile' => '$(OBJCXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS)',
761 'ccer' => 'OBJCXX',
762 'compiler' => 'OBJCXXCOMPILE',
763 'compile_flag' => '-c',
764 'output_flag' => '-o',
765 'lder' => 'OBJCXXLD',
766 'ld' => '$(OBJCXX)',
767 'pure' => 1,
768 'extensions' => ['.mm']);
770 # Unified Parallel C.
771 register_language ('name' => 'upc',
772 'Name' => 'Unified Parallel C',
773 'config_vars' => ['UPC'],
774 'linker' => 'UPCLINK',
775 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
776 'autodep' => 'UPC',
777 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
778 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
779 'ccer' => 'UPC',
780 'compiler' => 'UPCCOMPILE',
781 'compile_flag' => '-c',
782 'output_flag' => '-o',
783 'lder' => 'UPCLD',
784 'ld' => '$(UPC)',
785 'pure' => 1,
786 'extensions' => ['.upc']);
788 # Headers.
789 register_language ('name' => 'header',
790 'Name' => 'Header',
791 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
792 '.hpp', '.inc'],
793 # No output.
794 'output_extensions' => sub { return () },
795 # Nothing to do.
796 '_finish' => sub { });
798 # Vala
799 register_language ('name' => 'vala',
800 'Name' => 'Vala',
801 'config_vars' => ['VALAC'],
802 'flags' => [],
803 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
804 'ccer' => 'VALAC',
805 'compiler' => 'VALACOMPILE',
806 'extensions' => ['.vala'],
807 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
808 return ($ext,) },
809 'rule_file' => 'vala',
810 '_finish' => \&lang_vala_finish,
811 '_target_hook' => \&lang_vala_target_hook,
812 'nodist_specific' => 1);
814 # Yacc (C & C++).
815 register_language ('name' => 'yacc',
816 'Name' => 'Yacc',
817 'config_vars' => ['YACC'],
818 'flags' => ['YFLAGS'],
819 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
820 'ccer' => 'YACC',
821 'compiler' => 'YACCCOMPILE',
822 'extensions' => ['.y'],
823 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
824 return ($ext,) },
825 'rule_file' => 'yacc',
826 '_finish' => \&lang_yacc_finish,
827 '_target_hook' => \&lang_yacc_target_hook,
828 'nodist_specific' => 1);
829 register_language ('name' => 'yaccxx',
830 'Name' => 'Yacc (C++)',
831 'config_vars' => ['YACC'],
832 'rule_file' => 'yacc',
833 'flags' => ['YFLAGS'],
834 'ccer' => 'YACC',
835 'compiler' => 'YACCCOMPILE',
836 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
837 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
838 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
839 return ($ext,) },
840 '_finish' => \&lang_yacc_finish,
841 '_target_hook' => \&lang_yacc_target_hook,
842 'nodist_specific' => 1);
844 # Lex (C & C++).
845 register_language ('name' => 'lex',
846 'Name' => 'Lex',
847 'config_vars' => ['LEX'],
848 'rule_file' => 'lex',
849 'flags' => ['LFLAGS'],
850 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
851 'ccer' => 'LEX',
852 'compiler' => 'LEXCOMPILE',
853 'extensions' => ['.l'],
854 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
855 return ($ext,) },
856 '_finish' => \&lang_lex_finish,
857 '_target_hook' => \&lang_lex_target_hook,
858 'nodist_specific' => 1);
859 register_language ('name' => 'lexxx',
860 'Name' => 'Lex (C++)',
861 'config_vars' => ['LEX'],
862 'rule_file' => 'lex',
863 'flags' => ['LFLAGS'],
864 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
865 'ccer' => 'LEX',
866 'compiler' => 'LEXCOMPILE',
867 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
868 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
869 return ($ext,) },
870 '_finish' => \&lang_lex_finish,
871 '_target_hook' => \&lang_lex_target_hook,
872 'nodist_specific' => 1);
874 # Assembler.
875 register_language ('name' => 'asm',
876 'Name' => 'Assembler',
877 'config_vars' => ['CCAS', 'CCASFLAGS'],
879 'flags' => ['CCASFLAGS'],
880 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
881 # or anything else required. They can also set CCAS.
882 # Or simply use Preprocessed Assembler.
883 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
884 'ccer' => 'CCAS',
885 'compiler' => 'CCASCOMPILE',
886 'compile_flag' => '-c',
887 'output_flag' => '-o',
888 'extensions' => ['.s']);
890 # Preprocessed Assembler.
891 register_language ('name' => 'cppasm',
892 'Name' => 'Preprocessed Assembler',
893 'config_vars' => ['CCAS', 'CCASFLAGS'],
895 'autodep' => 'CCAS',
896 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
897 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
898 'ccer' => 'CPPAS',
899 'compiler' => 'CPPASCOMPILE',
900 'compile_flag' => '-c',
901 'output_flag' => '-o',
902 'extensions' => ['.S', '.sx']);
904 # Fortran 77
905 register_language ('name' => 'f77',
906 'Name' => 'Fortran 77',
907 'config_vars' => ['F77'],
908 'linker' => 'F77LINK',
909 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
910 'flags' => ['FFLAGS'],
911 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
912 'ccer' => 'F77',
913 'compiler' => 'F77COMPILE',
914 'compile_flag' => '-c',
915 'output_flag' => '-o',
916 'libtool_tag' => 'F77',
917 'lder' => 'F77LD',
918 'ld' => '$(F77)',
919 'pure' => 1,
920 'extensions' => ['.f', '.for']);
922 # Fortran
923 register_language ('name' => 'fc',
924 'Name' => 'Fortran',
925 'config_vars' => ['FC'],
926 'linker' => 'FCLINK',
927 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
928 'flags' => ['FCFLAGS'],
929 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
930 'ccer' => 'FC',
931 'compiler' => 'FCCOMPILE',
932 'compile_flag' => '-c',
933 'output_flag' => '-o',
934 'libtool_tag' => 'FC',
935 'lder' => 'FCLD',
936 'ld' => '$(FC)',
937 'pure' => 1,
938 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
940 # Preprocessed Fortran
941 register_language ('name' => 'ppfc',
942 'Name' => 'Preprocessed Fortran',
943 'config_vars' => ['FC'],
944 'linker' => 'FCLINK',
945 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
946 'lder' => 'FCLD',
947 'ld' => '$(FC)',
948 'flags' => ['FCFLAGS', 'CPPFLAGS'],
949 'ccer' => 'PPFC',
950 'compiler' => 'PPFCCOMPILE',
951 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
952 'compile_flag' => '-c',
953 'output_flag' => '-o',
954 'libtool_tag' => 'FC',
955 'pure' => 1,
956 'extensions' => ['.F90','.F95', '.F03', '.F08']);
958 # Preprocessed Fortran 77
959 #
960 # The current support for preprocessing Fortran 77 just involves
961 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
962 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
963 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
964 # for 'make' Version 3.76 Beta" (specifically, from info file
965 # '(make)Catalogue of Rules').
966 #
967 # A better approach would be to write an Autoconf test
968 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
969 # Fortran 77 compilers know how to do preprocessing. The Autoconf
970 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
971 # preprocessing capabilities, and then fall back on cpp (if cpp were
972 # available).
973 register_language ('name' => 'ppf77',
974 'Name' => 'Preprocessed Fortran 77',
975 'config_vars' => ['F77'],
976 'linker' => 'F77LINK',
977 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
978 'lder' => 'F77LD',
979 'ld' => '$(F77)',
980 'flags' => ['FFLAGS', 'CPPFLAGS'],
981 'ccer' => 'PPF77',
982 'compiler' => 'PPF77COMPILE',
983 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
984 'compile_flag' => '-c',
985 'output_flag' => '-o',
986 'libtool_tag' => 'F77',
987 'pure' => 1,
988 'extensions' => ['.F']);
990 # Ratfor.
991 register_language ('name' => 'ratfor',
992 'Name' => 'Ratfor',
993 'config_vars' => ['F77'],
994 'linker' => 'F77LINK',
995 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
996 'lder' => 'F77LD',
997 'ld' => '$(F77)',
998 'flags' => ['RFLAGS', 'FFLAGS'],
999 # FIXME also FFLAGS.
1000 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1001 'ccer' => 'F77',
1002 'compiler' => 'RCOMPILE',
1003 'compile_flag' => '-c',
1004 'output_flag' => '-o',
1005 'libtool_tag' => 'F77',
1006 'pure' => 1,
1007 'extensions' => ['.r']);
1009 # Java via gcj.
1010 register_language ('name' => 'java',
1011 'Name' => 'Java',
1012 'config_vars' => ['GCJ'],
1013 'linker' => 'GCJLINK',
1014 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1015 'autodep' => 'GCJ',
1016 'flags' => ['GCJFLAGS'],
1017 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1018 'ccer' => 'GCJ',
1019 'compiler' => 'GCJCOMPILE',
1020 'compile_flag' => '-c',
1021 'output_flag' => '-o',
1022 'libtool_tag' => 'GCJ',
1023 'lder' => 'GCJLD',
1024 'ld' => '$(GCJ)',
1025 'pure' => 1,
1026 'extensions' => ['.java', '.class', '.zip', '.jar']);
1028 ################################################################
1030 # Error reporting functions.
1032 # err_am ($MESSAGE, [%OPTIONS])
1033 # -----------------------------
1034 # Uncategorized errors about the current Makefile.am.
1035 sub err_am ($;%)
1036 {
1037 msg_am ('error', @_);
1038 }
1040 # err_ac ($MESSAGE, [%OPTIONS])
1041 # -----------------------------
1042 # Uncategorized errors about configure.ac.
1043 sub err_ac ($;%)
1044 {
1045 msg_ac ('error', @_);
1046 }
1048 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1049 # ---------------------------------------
1050 # Messages about about the current Makefile.am.
1051 sub msg_am ($$;%)
1052 {
1053 my ($channel, $msg, %opts) = @_;
1054 msg $channel, "${am_file}.am", $msg, %opts;
1055 }
1057 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1058 # ---------------------------------------
1059 # Messages about about configure.ac.
1060 sub msg_ac ($$;%)
1061 {
1062 my ($channel, $msg, %opts) = @_;
1063 msg $channel, $configure_ac, $msg, %opts;
1064 }
1066 ################################################################
1068 # subst ($TEXT)
1069 # -------------
1070 # Return a configure-style substitution using the indicated text.
1071 # We do this to avoid having the substitutions directly in automake.in;
1072 # when we do that they are sometimes removed and this causes confusion
1073 # and bugs.
1074 sub subst ($)
1075 {
1076 my ($text) = @_;
1077 return '@' . $text . '@';
1078 }
1080 ################################################################
1083 # $BACKPATH
1084 # &backname ($RELDIR)
1085 # --------------------
1086 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1087 # For instance 'src/foo' => '../..'.
1088 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1089 sub backname ($)
1090 {
1091 my ($file) = @_;
1092 my @res;
1093 foreach (split (/\//, $file))
1094 {
1095 next if $_ eq '.' || $_ eq '';
1096 if ($_ eq '..')
1097 {
1098 pop @res
1099 or prog_error ("trying to reverse path '$file' pointing outside tree");
1100 }
1101 else
1102 {
1103 push (@res, '..');
1104 }
1105 }
1106 return join ('/', @res) || '.';
1107 }
1109 ################################################################
1111 # Silent rules handling functions.
1113 # verbose_var (NAME)
1114 # ------------------
1115 # The public variable stem used to implement silent rules.
1116 sub verbose_var ($)
1117 {
1118 my ($name) = @_;
1119 return 'AM_V_' . $name;
1120 }
1122 # verbose_private_var (NAME)
1123 # --------------------------
1124 # The naming policy for the private variables for silent rules.
1125 sub verbose_private_var ($)
1126 {
1127 my ($name) = @_;
1128 return 'am__v_' . $name;
1129 }
1131 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1132 # ----------------------------------------------------------
1133 # For silent rules, setup VAR and dispatcher, to expand to
1134 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
1135 # empty) if not.
1136 sub define_verbose_var ($$;$)
1137 {
1138 my ($name, $silent_val, $verbose_val) = @_;
1139 $verbose_val = '' unless defined $verbose_val;
1140 my $var = verbose_var ($name);
1141 my $pvar = verbose_private_var ($name);
1142 my $silent_var = $pvar . '_0';
1143 my $verbose_var = $pvar . '_1';
1144 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1145 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1146 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1147 # See AM_SILENT_RULES in m4/silent.m4.
1148 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1149 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1150 INTERNAL);
1151 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1152 $silent_val, '', INTERNAL, VAR_ASIS)
1153 if (! vardef ($silent_var, TRUE));
1154 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1155 $verbose_val, '', INTERNAL, VAR_ASIS)
1156 if (! vardef ($verbose_var, TRUE));
1157 }
1159 # Above should not be needed in the general automake code.
1161 # verbose_flag (NAME)
1162 # -------------------
1163 # Contents of %VERBOSE%: variable to expand before rule command.
1164 sub verbose_flag ($)
1165 {
1166 my ($name) = @_;
1167 return '$(' . verbose_var ($name) . ')';
1168 }
1170 sub verbose_nodep_flag ($)
1171 {
1172 my ($name) = @_;
1173 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1174 }
1176 # silent_flag
1177 # -----------
1178 # Contents of %SILENT%: variable to expand to '@' when silent.
1179 sub silent_flag ()
1180 {
1181 return verbose_flag ('at');
1182 }
1184 # define_verbose_tagvar (NAME)
1185 # ----------------------------
1186 # Engage the needed silent rules machinery for tag NAME.
1187 sub define_verbose_tagvar ($)
1188 {
1189 my ($name) = @_;
1190 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1191 }
1193 # define_verbose_texinfo
1194 # ----------------------
1195 # Engage the needed silent rules machinery for assorted texinfo commands.
1196 sub define_verbose_texinfo ()
1197 {
1198 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1199 foreach my $tag (@tagvars)
1200 {
1201 define_verbose_tagvar($tag);
1202 }
1203 define_verbose_var('texinfo', '-q');
1204 define_verbose_var('texidevnull', '> /dev/null');
1205 }
1207 # define_verbose_libtool
1208 # ----------------------
1209 # Engage the needed silent rules machinery for 'libtool --silent'.
1210 sub define_verbose_libtool ()
1211 {
1212 define_verbose_var ('lt', '--silent');
1213 return verbose_flag ('lt');
1214 }
1216 sub handle_silent ()
1217 {
1218 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1219 # used in make recipes to determine whether we are being run in
1220 # silent mode or not. The choice of the name derives from the LISP
1221 # convention of appending the letter 'P' to denote a predicate (see
1222 # also "the '-P' convention" in the Jargon File); we do so for lack
1223 # of a better convention.
1224 define_verbose_var ('P', 'false', ':');
1225 # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
1226 define_verbose_tagvar ('GEN');
1227 define_verbose_var ('at', '@');
1228 }
1231 ################################################################
1234 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1235 sub handle_options
1236 {
1237 my $var = var ('AUTOMAKE_OPTIONS');
1238 if ($var)
1239 {
1240 if ($var->has_conditional_contents)
1241 {
1242 msg_var ('unsupported', $var,
1243 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1244 }
1245 my @options = map { { option => $_->[1], where => $_->[0] } }
1246 $var->value_as_list_recursive (cond_filter => TRUE,
1247 location => 1);
1248 return 1 if process_option_list (@options);
1249 }
1251 if ($strictness == GNITS)
1252 {
1253 set_option ('readme-alpha', INTERNAL);
1254 set_option ('std-options', INTERNAL);
1255 set_option ('check-news', INTERNAL);
1256 }
1258 return 0;
1259 }
1261 # shadow_unconditionally ($varname, $where)
1262 # -----------------------------------------
1263 # Return a $(variable) that contains all possible values
1264 # $varname can take.
1265 # If the VAR wasn't defined conditionally, return $(VAR).
1266 # Otherwise we create an am__VAR_DIST variable which contains
1267 # all possible values, and return $(am__VAR_DIST).
1268 sub shadow_unconditionally ($$)
1269 {
1270 my ($varname, $where) = @_;
1271 my $var = var $varname;
1272 if ($var->has_conditional_contents)
1273 {
1274 $varname = "am__${varname}_DIST";
1275 my @files = uniq ($var->value_as_list_recursive);
1276 define_pretty_variable ($varname, TRUE, $where, @files);
1277 }
1278 return "\$($varname)"
1279 }
1281 # check_user_variables (@LIST)
1282 # ----------------------------
1283 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1284 # otherwise.
1285 sub check_user_variables (@)
1286 {
1287 my @dont_override = @_;
1288 foreach my $flag (@dont_override)
1289 {
1290 my $var = var $flag;
1291 if ($var)
1292 {
1293 for my $cond ($var->conditions->conds)
1294 {
1295 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1296 {
1297 msg_cond_var ('gnu', $cond, $flag,
1298 "'$flag' is a user variable, "
1299 . "you should not override it;\n"
1300 . "use 'AM_$flag' instead");
1301 }
1302 }
1303 }
1304 }
1305 }
1307 # Call finish function for each language that was used.
1308 sub handle_languages
1309 {
1310 if (! option 'no-dependencies')
1311 {
1312 # Include auto-dep code. Don't include it if DEP_FILES would
1313 # be empty.
1314 if (keys %extension_seen && keys %dep_files)
1315 {
1316 # Set location of depcomp.
1317 &define_variable ('depcomp',
1318 "\$(SHELL) $am_config_aux_dir/depcomp",
1319 INTERNAL);
1320 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1322 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1324 my @deplist = sort keys %dep_files;
1325 # Generate each 'include' individually. Irix 6 make will
1326 # not properly include several files resulting from a
1327 # variable expansion; generating many separate includes
1328 # seems safest.
1329 $output_rules .= "\n";
1330 foreach my $iter (@deplist)
1331 {
1332 $output_rules .= (subst ('AMDEP_TRUE')
1333 . subst ('am__include')
1334 . ' '
1335 . subst ('am__quote')
1336 . $iter
1337 . subst ('am__quote')
1338 . "\n");
1339 }
1341 # Compute the set of directories to remove in distclean-depend.
1342 my @depdirs = uniq (map { dirname ($_) } @deplist);
1343 $output_rules .= &file_contents ('depend',
1344 new Automake::Location,
1345 DEPDIRS => "@depdirs");
1346 }
1347 }
1348 else
1349 {
1350 &define_variable ('depcomp', '', INTERNAL);
1351 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1352 }
1354 my %done;
1356 # Is the C linker needed?
1357 my $needs_c = 0;
1358 foreach my $ext (sort keys %extension_seen)
1359 {
1360 next unless $extension_map{$ext};
1362 my $lang = $languages{$extension_map{$ext}};
1364 my $rule_file = $lang->rule_file || 'depend2';
1366 # Get information on $LANG.
1367 my $pfx = $lang->autodep;
1368 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1370 my ($AMDEP, $FASTDEP) =
1371 (option 'no-dependencies' || $lang->autodep eq 'no')
1372 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1374 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1375 my $verbose_nodep = ($AMDEP eq 'FALSE')
1376 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1377 my $silent = silent_flag ();
1379 my %transform = ('EXT' => $ext,
1380 'PFX' => $pfx,
1381 'FPFX' => $fpfx,
1382 'AMDEP' => $AMDEP,
1383 'FASTDEP' => $FASTDEP,
1384 '-c' => $lang->compile_flag || '',
1385 # These are not used, but they need to be defined
1386 # so &transform do not complain.
1387 SUBDIROBJ => 0,
1388 'DERIVED-EXT' => 'BUG',
1389 DIST_SOURCE => 1,
1390 VERBOSE => $verbose,
1391 'VERBOSE-NODEP' => $verbose_nodep,
1392 SILENT => $silent,
1393 );
1395 # Generate the appropriate rules for this extension.
1396 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1397 || defined $lang->compile)
1398 {
1399 # Some C compilers don't support -c -o. Use it only if really
1400 # needed.
1401 my $output_flag = $lang->output_flag || '';
1402 $output_flag = '-o'
1403 if (! $output_flag
1404 && $lang->name eq 'c'
1405 && option 'subdir-objects');
1407 # Compute a possible derived extension.
1408 # This is not used by depend2.am.
1409 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1411 # When we output an inference rule like '.c.o:' we
1412 # have two cases to consider: either subdir-objects
1413 # is used, or it is not.
1414 #
1415 # In the latter case the rule is used to build objects
1416 # in the current directory, and dependencies always
1417 # go into './$(DEPDIR)/'. We can hard-code this value.
1418 #
1419 # In the former case the rule can be used to build
1420 # objects in sub-directories too. Dependencies should
1421 # go into the appropriate sub-directories, e.g.,
1422 # 'sub/$(DEPDIR)/'. The value of this directory
1423 # needs to be computed on-the-fly.
1424 #
1425 # DEPBASE holds the name of this directory, plus the
1426 # basename part of the object file (extensions Po, TPo,
1427 # Plo, TPlo will be added later as appropriate). It is
1428 # either hardcoded, or a shell variable ('$depbase') that
1429 # will be computed by the rule.
1430 my $depbase =
1431 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1432 $output_rules .=
1433 file_contents ($rule_file,
1434 new Automake::Location,
1435 %transform,
1436 GENERIC => 1,
1438 'DERIVED-EXT' => $der_ext,
1440 DEPBASE => $depbase,
1441 BASE => '$*',
1442 SOURCE => '$<',
1443 SOURCEFLAG => $sourceflags{$ext} || '',
1444 OBJ => '$@',
1445 OBJOBJ => '$@',
1446 LTOBJ => '$@',
1448 COMPILE => '$(' . $lang->compiler . ')',
1449 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1450 -o => $output_flag,
1451 SUBDIROBJ => !! option 'subdir-objects');
1452 }
1454 # Now include code for each specially handled object with this
1455 # language.
1456 my %seen_files = ();
1457 foreach my $file (@{$lang_specific_files{$lang->name}})
1458 {
1459 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1461 # We might see a given object twice, for instance if it is
1462 # used under different conditions.
1463 next if defined $seen_files{$obj};
1464 $seen_files{$obj} = 1;
1466 prog_error ("found " . $lang->name .
1467 " in handle_languages, but compiler not defined")
1468 unless defined $lang->compile;
1470 my $obj_compile = $lang->compile;
1472 # Rewrite each occurrence of 'AM_$flag' in the compile
1473 # rule into '${derived}_$flag' if it exists.
1474 for my $flag (@{$lang->flags})
1475 {
1476 my $val = "${derived}_$flag";
1477 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1478 if set_seen ($val);
1479 }
1481 my $libtool_tag = '';
1482 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1483 {
1484 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1485 }
1487 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1488 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1490 my $ltverbose = define_verbose_libtool ();
1491 my $obj_ltcompile =
1492 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1493 . "--mode=compile $obj_compile";
1495 # We _need_ '-o' for per object rules.
1496 my $output_flag = $lang->output_flag || '-o';
1498 my $depbase = dirname ($obj);
1499 $depbase = ''
1500 if $depbase eq '.';
1501 $depbase .= '/'
1502 unless $depbase eq '';
1503 $depbase .= '$(DEPDIR)/' . basename ($obj);
1505 $output_rules .=
1506 file_contents ($rule_file,
1507 new Automake::Location,
1508 %transform,
1509 GENERIC => 0,
1511 DEPBASE => $depbase,
1512 BASE => $obj,
1513 SOURCE => $source,
1514 SOURCEFLAG => $sourceflags{$srcext} || '',
1515 # Use $myext and not '.o' here, in case
1516 # we are actually building a new source
1517 # file -- e.g. via yacc.
1518 OBJ => "$obj$myext",
1519 OBJOBJ => "$obj.obj",
1520 LTOBJ => "$obj.lo",
1522 VERBOSE => $verbose,
1523 'VERBOSE-NODEP' => $verbose_nodep,
1524 SILENT => $silent,
1525 COMPILE => $obj_compile,
1526 LTCOMPILE => $obj_ltcompile,
1527 -o => $output_flag,
1528 %file_transform);
1529 }
1531 # The rest of the loop is done once per language.
1532 next if defined $done{$lang};
1533 $done{$lang} = 1;
1535 # Load the language dependent Makefile chunks.
1536 my %lang = map { uc ($_) => 0 } keys %languages;
1537 $lang{uc ($lang->name)} = 1;
1538 $output_rules .= file_contents ('lang-compile',
1539 new Automake::Location,
1540 %transform, %lang);
1542 # If the source to a program consists entirely of code from a
1543 # 'pure' language, for instance C++ or Fortran 77, then we
1544 # don't need the C compiler code. However if we run into
1545 # something unusual then we do generate the C code. There are
1546 # probably corner cases here that do not work properly.
1547 # People linking Java code to Fortran code deserve pain.
1548 $needs_c ||= ! $lang->pure;
1550 define_compiler_variable ($lang)
1551 if ($lang->compile);
1553 define_linker_variable ($lang)
1554 if ($lang->link);
1556 require_variables ("$am_file.am", $lang->Name . " source seen",
1557 TRUE, @{$lang->config_vars});
1559 # Call the finisher.
1560 $lang->finish;
1562 # Flags listed in '->flags' are user variables (per GNU Standards),
1563 # they should not be overridden in the Makefile...
1564 my @dont_override = @{$lang->flags};
1565 # ... and so is LDFLAGS.
1566 push @dont_override, 'LDFLAGS' if $lang->link;
1568 check_user_variables @dont_override;
1569 }
1571 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1572 # suffix rule was learned), don't bother with the C stuff. But if
1573 # anything else creeps in, then use it.
1574 $needs_c = 1
1575 if $need_link || suffix_rules_count > 1;
1577 if ($needs_c)
1578 {
1579 &define_compiler_variable ($languages{'c'})
1580 unless defined $done{$languages{'c'}};
1581 define_linker_variable ($languages{'c'});
1582 }
1583 }
1586 # append_exeext { PREDICATE } $MACRO
1587 # ----------------------------------
1588 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1589 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1590 # ignored.
1591 #
1592 # This is typically used on all filenames of *_PROGRAMS, and filenames
1593 # of TESTS that are programs.
1594 sub append_exeext (&$)
1595 {
1596 my ($pred, $macro) = @_;
1598 transform_variable_recursively
1599 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1600 sub {
1601 my ($subvar, $val, $cond, $full_cond) = @_;
1602 # Append $(EXEEXT) unless the user did it already, or it's a
1603 # @substitution@.
1604 $val .= '$(EXEEXT)'
1605 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1606 return $val;
1607 });
1608 }
1611 # Check to make sure a source defined in LIBOBJS is not explicitly
1612 # mentioned. This is a separate function (as opposed to being inlined
1613 # in handle_source_transform) because it isn't always appropriate to
1614 # do this check.
1615 sub check_libobjs_sources
1616 {
1617 my ($one_file, $unxformed) = @_;
1619 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1620 'dist_EXTRA_', 'nodist_EXTRA_')
1621 {
1622 my @files;
1623 my $varname = $prefix . $one_file . '_SOURCES';
1624 my $var = var ($varname);
1625 if ($var)
1626 {
1627 @files = $var->value_as_list_recursive;
1628 }
1629 elsif ($prefix eq '')
1630 {
1631 @files = ($unxformed . '.c');
1632 }
1633 else
1634 {
1635 next;
1636 }
1638 foreach my $file (@files)
1639 {
1640 err_var ($prefix . $one_file . '_SOURCES',
1641 "automatically discovered file '$file' should not" .
1642 " be explicitly mentioned")
1643 if defined $libsources{$file};
1644 }
1645 }
1646 }
1649 # @OBJECTS
1650 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1651 # -----------------------------------------------------------------------------
1652 # Does much of the actual work for handle_source_transform.
1653 # Arguments are:
1654 # $VAR is the name of the variable that the source filenames come from
1655 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1656 # $DERIVED is the name of resulting executable or library
1657 # $OBJ is the object extension (e.g., '.lo')
1658 # $FILE the source file to transform
1659 # %TRANSFORM contains extras arguments to pass to file_contents
1660 # when producing explicit rules
1661 # Result is a list of the names of objects
1662 # %linkers_used will be updated with any linkers needed
1663 sub handle_single_transform ($$$$$%)
1664 {
1665 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1666 my @files = ($_file);
1667 my @result = ();
1669 # Turn sources into objects. We use a while loop like this
1670 # because we might add to @files in the loop.
1671 while (scalar @files > 0)
1672 {
1673 $_ = shift @files;
1675 # Configure substitutions in _SOURCES variables are errors.
1676 if (/^\@.*\@$/)
1677 {
1678 my $parent_msg = '';
1679 $parent_msg = "\nand is referred to from '$topparent'"
1680 if $topparent ne $var->name;
1681 err_var ($var,
1682 "'" . $var->name . "' includes configure substitution '$_'"
1683 . $parent_msg . ";\nconfigure " .
1684 "substitutions are not allowed in _SOURCES variables");
1685 next;
1686 }
1688 # If the source file is in a subdirectory then the '.o' is put
1689 # into the current directory, unless the subdir-objects option
1690 # is in effect.
1692 # Split file name into base and extension.
1693 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1694 my $full = $_;
1695 my $directory = $1 || '';
1696 my $base = $2;
1697 my $extension = $3;
1699 # We must generate a rule for the object if it requires its own flags.
1700 my $renamed = 0;
1701 my ($linker, $object);
1703 # This records whether we've seen a derived source file (e.g.
1704 # yacc output).
1705 my $derived_source = 0;
1707 # This holds the 'aggregate context' of the file we are
1708 # currently examining. If the file is compiled with
1709 # per-object flags, then it will be the name of the object.
1710 # Otherwise it will be 'AM'. This is used by the target hook
1711 # language function.
1712 my $aggregate = 'AM';
1714 $extension = &derive_suffix ($extension, $obj);
1715 my $lang;
1716 if ($extension_map{$extension} &&
1717 ($lang = $languages{$extension_map{$extension}}))
1718 {
1719 # Found the language, so see what it says.
1720 &saw_extension ($extension);
1722 # Do we have per-executable flags for this executable?
1723 my $have_per_exec_flags = 0;
1724 my @peflags = @{$lang->flags};
1725 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1726 foreach my $flag (@peflags)
1727 {
1728 if (set_seen ("${derived}_$flag"))
1729 {
1730 $have_per_exec_flags = 1;
1731 last;
1732 }
1733 }
1735 # Note: computed subr call. The language rewrite function
1736 # should return one of the LANG_* constants. It could
1737 # also return a list whose first value is such a constant
1738 # and whose second value is a new source extension which
1739 # should be applied. This means this particular language
1740 # generates another source file which we must then process
1741 # further.
1742 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1743 defined &$subr or $subr = \&lang_sub_obj;
1744 my ($r, $source_extension)
1745 = &$subr ($directory, $base, $extension,
1746 $obj, $have_per_exec_flags, $var);
1747 # Skip this entry if we were asked not to process it.
1748 next if $r == LANG_IGNORE;
1750 # Now extract linker and other info.
1751 $linker = $lang->linker;
1753 my $this_obj_ext;
1754 if (defined $source_extension)
1755 {
1756 $this_obj_ext = $source_extension;
1757 $derived_source = 1;
1758 }
1759 else
1760 {
1761 $this_obj_ext = $obj;
1762 }
1763 $object = $base . $this_obj_ext;
1765 if ($have_per_exec_flags)
1766 {
1767 # We have a per-executable flag in effect for this
1768 # object. In this case we rewrite the object's
1769 # name to ensure it is unique.
1771 # We choose the name 'DERIVED_OBJECT' to ensure
1772 # (1) uniqueness, and (2) continuity between
1773 # invocations. However, this will result in a
1774 # name that is too long for losing systems, in
1775 # some situations. So we provide _SHORTNAME to
1776 # override.
1778 my $dname = $derived;
1779 my $var = var ($derived . '_SHORTNAME');
1780 if ($var)
1781 {
1782 # FIXME: should use the same Condition as
1783 # the _SOURCES variable. But this is really
1784 # silly overkill -- nobody should have
1785 # conditional shortnames.
1786 $dname = $var->variable_value;
1787 }
1788 $object = $dname . '-' . $object;
1790 prog_error ($lang->name . " flags defined without compiler")
1791 if ! defined $lang->compile;
1793 $renamed = 1;
1794 }
1796 # If rewrite said it was ok, put the object into a
1797 # subdir.
1798 if ($r == LANG_SUBDIR && $directory ne '')
1799 {
1800 $object = $directory . '/' . $object;
1801 }
1803 # If the object file has been renamed (because per-target
1804 # flags are used) we cannot compile the file with an
1805 # inference rule: we need an explicit rule.
1806 #
1807 # If the source is in a subdirectory and the object is in
1808 # the current directory, we also need an explicit rule.
1809 #
1810 # If both source and object files are in a subdirectory
1811 # (this happens when the subdir-objects option is used),
1812 # then the inference will work.
1813 #
1814 # The latter case deserves a historical note. When the
1815 # subdir-objects option was added on 1999-04-11 it was
1816 # thought that inferences rules would work for
1817 # subdirectory objects too. Later, on 1999-11-22,
1818 # automake was changed to output explicit rules even for
1819 # subdir-objects. Nobody remembers why, but this occurred
1820 # soon after the merge of the user-dep-gen-branch so it
1821 # might be related. In late 2003 people complained about
1822 # the size of the generated Makefile.ins (libgcj, with
1823 # 2200+ subdir objects was reported to have a 9MB
1824 # Makefile), so we now rely on inference rules again.
1825 # Maybe we'll run across the same issue as in the past,
1826 # but at least this time we can document it. However since
1827 # dependency tracking has evolved it is possible that
1828 # our old problem no longer exists.
1829 # Using inference rules for subdir-objects has been tested
1830 # with GNU make, Solaris make, Ultrix make, BSD make,
1831 # HP-UX make, and OSF1 make successfully.
1832 if ($renamed
1833 || ($directory ne '' && ! option 'subdir-objects')
1834 # We must also use specific rules for a nodist_ source
1835 # if its language requests it.
1836 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1837 {
1838 my $obj_sans_ext = substr ($object, 0,
1839 - length ($this_obj_ext));
1840 my $full_ansi;
1841 if ($directory ne '')
1842 {
1843 $full_ansi = $directory . '/' . $base . $extension;
1844 }
1845 else
1846 {
1847 $full_ansi = $base . $extension;
1848 }
1850 my @specifics = ($full_ansi, $obj_sans_ext,
1851 # Only use $this_obj_ext in the derived
1852 # source case because in the other case we
1853 # *don't* want $(OBJEXT) to appear here.
1854 ($derived_source ? $this_obj_ext : '.o'),
1855 $extension);
1857 # If we renamed the object then we want to use the
1858 # per-executable flag name. But if this is simply a
1859 # subdir build then we still want to use the AM_ flag
1860 # name.
1861 if ($renamed)
1862 {
1863 unshift @specifics, $derived;
1864 $aggregate = $derived;
1865 }
1866 else
1867 {
1868 unshift @specifics, 'AM';
1869 }
1871 # Each item on this list is a reference to a list consisting
1872 # of four values followed by additional transform flags for
1873 # file_contents. The four values are the derived flag prefix
1874 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1875 # source file, the base name of the output file, and
1876 # the extension for the object file.
1877 push (@{$lang_specific_files{$lang->name}},
1878 [@specifics, %transform]);
1879 }
1880 }
1881 elsif ($extension eq $obj)
1882 {
1883 # This is probably the result of a direct suffix rule.
1884 # In this case we just accept the rewrite.
1885 $object = "$base$extension";
1886 $object = "$directory/$object" if $directory ne '';
1887 $linker = '';
1888 }
1889 else
1890 {
1891 # No error message here. Used to have one, but it was
1892 # very unpopular.
1893 # FIXME: we could potentially do more processing here,
1894 # perhaps treating the new extension as though it were a
1895 # new source extension (as above). This would require
1896 # more restructuring than is appropriate right now.
1897 next;
1898 }
1900 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1901 if (defined $object_map{$object}
1902 && $object_map{$object} ne $full);
1904 my $comp_val = (($object =~ /\.lo$/)
1905 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1906 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1907 if (defined $object_compilation_map{$comp_obj}
1908 && $object_compilation_map{$comp_obj} != 0
1909 # Only see the error once.
1910 && ($object_compilation_map{$comp_obj}
1911 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1912 && $object_compilation_map{$comp_obj} != $comp_val)
1913 {
1914 err_am "object '$comp_obj' created both with libtool and without";
1915 }
1916 $object_compilation_map{$comp_obj} |= $comp_val;
1918 if (defined $lang)
1919 {
1920 # Let the language do some special magic if required.
1921 $lang->target_hook ($aggregate, $object, $full, %transform);
1922 }
1924 if ($derived_source)
1925 {
1926 prog_error ($lang->name . " has automatic dependency tracking")
1927 if $lang->autodep ne 'no';
1928 # Make sure this new source file is handled next. That will
1929 # make it appear to be at the right place in the list.
1930 unshift (@files, $object);
1931 # Distribute derived sources unless the source they are
1932 # derived from is not.
1933 &push_dist_common ($object)
1934 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1935 next;
1936 }
1938 $linkers_used{$linker} = 1;
1940 push (@result, $object);
1942 if (! defined $object_map{$object})
1943 {
1944 my @dep_list = ();
1945 $object_map{$object} = $full;
1947 # If resulting object is in subdir, we need to make
1948 # sure the subdir exists at build time.
1949 if ($object =~ /\//)
1950 {
1951 # FIXME: check that $DIRECTORY is somewhere in the
1952 # project
1954 # For Java, the way we're handling it right now, a
1955 # '..' component doesn't make sense.
1956 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1957 {
1958 err_am "'$full' should not contain a '..' component";
1959 }
1961 # Make sure *all* objects files in the subdirectory are
1962 # removed by "make mostlyclean". Not only this is more
1963 # efficient than listing the object files to be removed
1964 # individually (which would cause an 'rm' invocation for
1965 # each of them -- very inefficient, see bug#10697), it
1966 # would also leave stale object files in the subdirectory
1967 # whenever a source file there is removed or renamed.
1968 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
1969 if ($object =~ /\.lo$/)
1970 {
1971 # If we have a libtool object, then we also must remove
1972 # any '.lo' objects in its same subdirectory.
1973 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
1974 # Remember to cleanup .libs/ in this directory.
1975 $libtool_clean_directories{$directory} = 1;
1976 }
1978 push (@dep_list, require_build_directory ($directory));
1980 # If we're generating dependencies, we also want
1981 # to make sure that the appropriate subdir of the
1982 # .deps directory is created.
1983 push (@dep_list,
1984 require_build_directory ($directory . '/$(DEPDIR)'))
1985 unless option 'no-dependencies';
1986 }
1988 &pretty_print_rule ($object . ':', "\t", @dep_list)
1989 if scalar @dep_list > 0;
1990 }
1992 # Transform .o or $o file into .P file (for automatic
1993 # dependency code).
1994 # Properly flatten multiple adjacent slashes, as Solaris 10 make
1995 # might fail over them in an include statement.
1996 # Leading double slashes may be special, as per Posix, so deal
1997 # with them carefully.
1998 if ($lang && $lang->autodep ne 'no')
1999 {
2000 my $depfile = $object;
2001 $depfile =~ s/\.([^.]*)$/.P$1/;
2002 $depfile =~ s/\$\(OBJEXT\)$/o/;
2003 my $maybe_extra_leading_slash = '';
2004 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2005 $depfile =~ s,/+,/,g;
2006 my $basename = basename ($depfile);
2007 # This might make $dirname empty, but we account for that below.
2008 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2009 $dirname = $maybe_extra_leading_slash . $dirname;
2010 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2011 }
2012 }
2014 return @result;
2015 }
2018 # $LINKER
2019 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2020 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2021 # ---------------------------------------------------------------------------
2022 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2023 #
2024 # Arguments are:
2025 # $VAR is the name of the _SOURCES variable
2026 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2027 # it will be generated and returned).
2028 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2029 # work done to determine the linker will be).
2030 # $ONE_FILE is the canonical (transformed) name of object to build
2031 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2032 # $TOPPARENT is the _SOURCES variable being processed.
2033 # $WHERE context into which this definition is done
2034 # %TRANSFORM extra arguments to pass to file_contents when producing
2035 # rules
2036 #
2037 # Result is a pair ($LINKER, $OBJVAR):
2038 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2039 sub define_objects_from_sources ($$$$$$$%)
2040 {
2041 my ($var, $objvar, $nodefine, $one_file,
2042 $obj, $topparent, $where, %transform) = @_;
2044 my $needlinker = "";
2046 transform_variable_recursively
2047 ($var, $objvar, 'am__objects', $nodefine, $where,
2048 # The transform code to run on each filename.
2049 sub {
2050 my ($subvar, $val, $cond, $full_cond) = @_;
2051 my @trans = handle_single_transform ($subvar, $topparent,
2052 $one_file, $obj, $val,
2053 %transform);
2054 $needlinker = "true" if @trans;
2055 return @trans;
2056 });
2058 return $needlinker;
2059 }
2062 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2063 # -----------------------------------------------------------------------------
2064 # Handle SOURCE->OBJECT transform for one program or library.
2065 # Arguments are:
2066 # canonical (transformed) name of target to build
2067 # actual target of object to build
2068 # object extension (i.e., either '.o' or '$o')
2069 # location of the source variable
2070 # extra arguments to pass to file_contents when producing rules
2071 # Return the name of the linker variable that must be used.
2072 # Empty return means just use 'LINK'.
2073 sub handle_source_transform ($$$$%)
2074 {
2075 # one_file is canonical name. unxformed is given name. obj is
2076 # object extension.
2077 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2079 my $linker = '';
2081 # No point in continuing if _OBJECTS is defined.
2082 return if reject_var ($one_file . '_OBJECTS',
2083 $one_file . '_OBJECTS should not be defined');
2085 my %used_pfx = ();
2086 my $needlinker;
2087 %linkers_used = ();
2088 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2089 'dist_EXTRA_', 'nodist_EXTRA_')
2090 {
2091 my $varname = $prefix . $one_file . "_SOURCES";
2092 my $var = var $varname;
2093 next unless $var;
2095 # We are going to define _OBJECTS variables using the prefix.
2096 # Then we glom them all together. So we can't use the null
2097 # prefix here as we need it later.
2098 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2100 # Keep track of which prefixes we saw.
2101 $used_pfx{$xpfx} = 1
2102 unless $prefix =~ /EXTRA_/;
2104 push @sources, "\$($varname)";
2105 push @dist_sources, shadow_unconditionally ($varname, $where)
2106 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2108 $needlinker |=
2109 define_objects_from_sources ($varname,
2110 $xpfx . $one_file . '_OBJECTS',
2111 $prefix =~ /EXTRA_/,
2112 $one_file, $obj, $varname, $where,
2113 DIST_SOURCE => ($prefix !~ /^nodist_/),
2114 %transform);
2115 }
2116 if ($needlinker)
2117 {
2118 $linker ||= &resolve_linker (%linkers_used);
2119 }
2121 my @keys = sort keys %used_pfx;
2122 if (scalar @keys == 0)
2123 {
2124 # The default source for libfoo.la is libfoo.c, but for
2125 # backward compatibility we first look at libfoo_la.c,
2126 # if no default source suffix is given.
2127 my $old_default_source = "$one_file.c";
2128 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2129 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2130 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2131 if $default_source_ext =~ /[\t ]/;
2132 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2133 if ($old_default_source ne $default_source
2134 && !$ext_var
2135 && (rule $old_default_source
2136 || rule '$(srcdir)/' . $old_default_source
2137 || rule '${srcdir}/' . $old_default_source
2138 || -f $old_default_source))
2139 {
2140 my $loc = $where->clone;
2141 $loc->pop_context;
2142 msg ('obsolete', $loc,
2143 "the default source for '$unxformed' has been changed "
2144 . "to '$default_source'.\n(Using '$old_default_source' for "
2145 . "backward compatibility.)");
2146 $default_source = $old_default_source;
2147 }
2148 # If a rule exists to build this source with a $(srcdir)
2149 # prefix, use that prefix in our variables too. This is for
2150 # the sake of BSD Make.
2151 if (rule '$(srcdir)/' . $default_source
2152 || rule '${srcdir}/' . $default_source)
2153 {
2154 $default_source = '$(srcdir)/' . $default_source;
2155 }
2157 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2158 push (@sources, $default_source);
2159 push (@dist_sources, $default_source);
2161 %linkers_used = ();
2162 my (@result) =
2163 handle_single_transform ($one_file . '_SOURCES',
2164 $one_file . '_SOURCES',
2165 $one_file, $obj,
2166 $default_source, %transform);
2167 $linker ||= &resolve_linker (%linkers_used);
2168 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2169 }
2170 else
2171 {
2172 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2173 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2174 }
2176 # If we want to use 'LINK' we must make sure it is defined.
2177 if ($linker eq '')
2178 {
2179 $need_link = 1;
2180 }
2182 return $linker;
2183 }
2186 # handle_lib_objects ($XNAME, $VAR)
2187 # ---------------------------------
2188 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2189 # Also, generate _DEPENDENCIES variable if appropriate.
2190 # Arguments are:
2191 # transformed name of object being built, or empty string if no object
2192 # name of _LDADD/_LIBADD-type variable to examine
2193 # Returns 1 if LIBOBJS seen, 0 otherwise.
2194 sub handle_lib_objects
2195 {
2196 my ($xname, $varname) = @_;
2198 my $var = var ($varname);
2199 prog_error "'$varname' undefined"
2200 unless $var;
2201 prog_error "unexpected variable name '$varname'"
2202 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2203 my $prefix = $1 || 'AM_';
2205 my $seen_libobjs = 0;
2206 my $flagvar = 0;
2208 transform_variable_recursively
2209 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2210 ! $xname, INTERNAL,
2211 # Transformation function, run on each filename.
2212 sub {
2213 my ($subvar, $val, $cond, $full_cond) = @_;
2215 if ($val =~ /^-/)
2216 {
2217 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2218 if ($val !~ /^-[lL]/ &&
2219 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2220 # for Libtool libraries or programs. (Actually we are a bit
2221 # lax here since this code also applies to non-libtool
2222 # libraries or programs, for which -dlopen and -dlopreopen
2223 # are pure nonsense. Diagnosing this doesn't seem very
2224 # important: the developer will quickly get complaints from
2225 # the linker.)
2226 $val !~ /^-dl(?:pre)?open$/ &&
2227 # Only get this error once.
2228 ! $flagvar)
2229 {
2230 $flagvar = 1;
2231 # FIXME: should display a stack of nested variables
2232 # as context when $var != $subvar.
2233 err_var ($var, "linker flags such as '$val' belong in "
2234 . "'${prefix}LDFLAGS'");
2235 }
2236 return ();
2237 }
2238 elsif ($val !~ /^\@.*\@$/)
2239 {
2240 # Assume we have a file of some sort, and output it into the
2241 # dependency variable. Autoconf substitutions are not output;
2242 # rarely is a new dependency substituted into e.g. foo_LDADD
2243 # -- but bad things (e.g. -lX11) are routinely substituted.
2244 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2245 # and handled specially below.
2246 return $val;
2247 }
2248 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2249 {
2250 handle_LIBOBJS ($subvar, $cond, $1);
2251 $seen_libobjs = 1;
2252 return $val;
2253 }
2254 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2255 {
2256 handle_ALLOCA ($subvar, $cond, $1);
2257 return $val;
2258 }
2259 else
2260 {
2261 return ();
2262 }
2263 });
2265 return $seen_libobjs;
2266 }
2268 # handle_LIBOBJS_or_ALLOCA ($VAR)
2269 # -------------------------------
2270 # Definitions common to LIBOBJS and ALLOCA.
2271 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2272 sub handle_LIBOBJS_or_ALLOCA ($)
2273 {
2274 my ($var) = @_;
2276 my $dir = '';
2278 # If LIBOBJS files must be built in another directory we have
2279 # to define LIBOBJDIR and ensure the files get cleaned.
2280 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2281 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2282 if ($config_libobj_dir
2283 && $relative_dir ne $config_libobj_dir)
2284 {
2285 if (option 'subdir-objects')
2286 {
2287 # In the top-level Makefile we do not use $(top_builddir), because
2288 # we are already there, and since the targets are built without
2289 # a $(top_builddir), it helps BSD Make to match them with
2290 # dependencies.
2291 $dir = "$config_libobj_dir/"
2292 if $config_libobj_dir ne '.';
2293 $dir = backname ($relative_dir) . "/$dir"
2294 if $relative_dir ne '.';
2295 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2296 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2297 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2298 # be created by libtool as a side-effect of creating LTLIBOBJS).
2299 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2300 }
2301 else
2302 {
2303 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2304 . " 'subdir-objects' is not set");
2305 }
2306 }
2308 return $dir;
2309 }
2311 sub handle_LIBOBJS ($$$)
2312 {
2313 my ($var, $cond, $lt) = @_;
2314 my $myobjext = $lt ? 'lo' : 'o';
2315 $lt ||= '';
2317 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2318 if ! keys %libsources;
2320 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2322 foreach my $iter (keys %libsources)
2323 {
2324 if ($iter =~ /\.[cly]$/)
2325 {
2326 &saw_extension ($&);
2327 &saw_extension ('.c');
2328 }
2330 if ($iter =~ /\.h$/)
2331 {
2332 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2333 }
2334 elsif ($iter ne 'alloca.c')
2335 {
2336 my $rewrite = $iter;
2337 $rewrite =~ s/\.c$/.P$myobjext/;
2338 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2339 $rewrite = "^" . quotemeta ($iter) . "\$";
2340 # Only require the file if it is not a built source.
2341 my $bs = var ('BUILT_SOURCES');
2342 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2343 {
2344 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2345 }
2346 }
2347 }
2348 }
2350 sub handle_ALLOCA ($$$)
2351 {
2352 my ($var, $cond, $lt) = @_;
2353 my $myobjext = $lt ? 'lo' : 'o';
2354 $lt ||= '';
2355 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2357 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2358 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2359 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2360 &saw_extension ('.c');
2361 }
2363 # Canonicalize the input parameter
2364 sub canonicalize
2365 {
2366 my ($string) = @_;
2367 $string =~ tr/A-Za-z0-9_\@/_/c;
2368 return $string;
2369 }
2371 # Canonicalize a name, and check to make sure the non-canonical name
2372 # is never used. Returns canonical name. Arguments are name and a
2373 # list of suffixes to check for.
2374 sub check_canonical_spelling
2375 {
2376 my ($name, @suffixes) = @_;
2378 my $xname = &canonicalize ($name);
2379 if ($xname ne $name)
2380 {
2381 foreach my $xt (@suffixes)
2382 {
2383 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2384 }
2385 }
2387 return $xname;
2388 }
2391 # handle_compile ()
2392 # -----------------
2393 # Set up the compile suite.
2394 sub handle_compile ()
2395 {
2396 return if ! $must_handle_compiled_objects;
2398 # Boilerplate.
2399 my $default_includes = '';
2400 if (! option 'nostdinc')
2401 {
2402 my @incs = ('-I.', subst ('am__isrc'));
2404 my $var = var 'CONFIG_HEADER';
2405 if ($var)
2406 {
2407 foreach my $hdr (split (' ', $var->variable_value))
2408 {
2409 push @incs, '-I' . dirname ($hdr);
2410 }
2411 }
2412 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2413 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2414 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2415 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2416 # to just put @am__isrc@ right after '-I.', without a space.
2417 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2418 }
2420 my (@mostly_rms, @dist_rms);
2421 foreach my $item (sort keys %compile_clean_files)
2422 {
2423 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2424 {
2425 push (@mostly_rms, "\t-rm -f $item");
2426 }
2427 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2428 {
2429 push (@dist_rms, "\t-rm -f $item");
2430 }
2431 else
2432 {
2433 prog_error 'invalid entry in %compile_clean_files';
2434 }
2435 }
2437 my ($coms, $vars, $rules) =
2438 &file_contents_internal (1, "$libdir/am/compile.am",
2439 new Automake::Location,
2440 ('DEFAULT_INCLUDES' => $default_includes,
2441 'MOSTLYRMS' => join ("\n", @mostly_rms),
2442 'DISTRMS' => join ("\n", @dist_rms)));
2443 $output_vars .= $vars;
2444 $output_rules .= "$coms$rules";
2445 }
2447 # handle_libtool ()
2448 # -----------------
2449 # Handle libtool rules.
2450 sub handle_libtool
2451 {
2452 return unless var ('LIBTOOL');
2454 # Libtool requires some files, but only at top level.
2455 # (Starting with Libtool 2.0 we do not have to bother. These
2456 # requirements are done with AC_REQUIRE_AUX_FILE.)
2457 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2458 if $relative_dir eq '.' && ! $libtool_new_api;
2460 my @libtool_rms;
2461 foreach my $item (sort keys %libtool_clean_directories)
2462 {
2463 my $dir = ($item eq '.') ? '' : "$item/";
2464 # .libs is for Unix, _libs for DOS.
2465 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2466 }
2468 check_user_variables 'LIBTOOLFLAGS';
2470 # Output the libtool compilation rules.
2471 $output_rules .= &file_contents ('libtool',
2472 new Automake::Location,
2473 LTRMS => join ("\n", @libtool_rms));
2474 }
2476 # handle_programs ()
2477 # ------------------
2478 # Handle C programs.
2479 sub handle_programs
2480 {
2481 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2482 'bin', 'sbin', 'libexec', 'pkglibexec',
2483 'noinst', 'check');
2484 return if ! @proglist;
2485 $must_handle_compiled_objects = 1;
2487 my $seen_global_libobjs =
2488 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2490 foreach my $pair (@proglist)
2491 {
2492 my ($where, $one_file) = @$pair;
2494 my $seen_libobjs = 0;
2495 my $obj = '.$(OBJEXT)';
2497 $known_programs{$one_file} = $where;
2499 # Canonicalize names and check for misspellings.
2500 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2501 '_SOURCES', '_OBJECTS',
2502 '_DEPENDENCIES');
2504 $where->push_context ("while processing program '$one_file'");
2505 $where->set (INTERNAL->get);
2507 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2508 NONLIBTOOL => 1, LIBTOOL => 0);
2510 if (var ($xname . "_LDADD"))
2511 {
2512 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2513 }
2514 else
2515 {
2516 # User didn't define prog_LDADD override. So do it.
2517 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2519 # This does a bit too much work. But we need it to
2520 # generate _DEPENDENCIES when appropriate.
2521 if (var ('LDADD'))
2522 {
2523 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2524 }
2525 }
2527 reject_var ($xname . '_LIBADD',
2528 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2530 set_seen ($xname . '_DEPENDENCIES');
2531 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2532 set_seen ($xname . '_LDFLAGS');
2534 # Determine program to use for link.
2535 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2536 $vlink = verbose_flag ($vlink || 'GEN');
2538 # If the resulting program lies in a subdirectory,
2539 # ensure that the directory exists before we need it.
2540 my $dirstamp = require_build_directory_maybe ($one_file);
2542 $libtool_clean_directories{dirname ($one_file)} = 1;
2544 $output_rules .= &file_contents ('program',
2545 $where,
2546 PROGRAM => $one_file,
2547 XPROGRAM => $xname,
2548 XLINK => $xlink,
2549 VERBOSE => $vlink,
2550 DIRSTAMP => $dirstamp,
2551 EXEEXT => '$(EXEEXT)');
2553 if ($seen_libobjs || $seen_global_libobjs)
2554 {
2555 if (var ($xname . '_LDADD'))
2556 {
2557 &check_libobjs_sources ($xname, $xname . '_LDADD');
2558 }
2559 elsif (var ('LDADD'))
2560 {
2561 &check_libobjs_sources ($xname, 'LDADD');
2562 }
2563 }
2564 }
2565 }
2568 # handle_libraries ()
2569 # -------------------
2570 # Handle libraries.
2571 sub handle_libraries
2572 {
2573 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2574 'lib', 'pkglib', 'noinst', 'check');
2575 return if ! @liblist;
2576 $must_handle_compiled_objects = 1;
2578 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2579 'noinst', 'check');
2581 if (@prefix)
2582 {
2583 my $var = rvar ($prefix[0] . '_LIBRARIES');
2584 $var->requires_variables ('library used', 'RANLIB');
2585 }
2587 &define_variable ('AR', 'ar', INTERNAL);
2588 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2589 &define_verbose_tagvar ('AR');
2591 foreach my $pair (@liblist)
2592 {
2593 my ($where, $onelib) = @$pair;
2595 my $seen_libobjs = 0;
2596 # Check that the library fits the standard naming convention.
2597 my $bn = basename ($onelib);
2598 if ($bn !~ /^lib.*\.a$/)
2599 {
2600 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2601 my $suggestion = dirname ($onelib) . "/$bn";
2602 $suggestion =~ s|^\./||g;
2603 msg ('error-gnu/warn', $where,
2604 "'$onelib' is not a standard library name\n"
2605 . "did you mean '$suggestion'?")
2606 }
2608 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2610 $where->push_context ("while processing library '$onelib'");
2611 $where->set (INTERNAL->get);
2613 my $obj = '.$(OBJEXT)';
2615 # Canonicalize names and check for misspellings.
2616 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2617 '_OBJECTS', '_DEPENDENCIES',
2618 '_AR');
2620 if (! var ($xlib . '_AR'))
2621 {
2622 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2623 }
2625 # Generate support for conditional object inclusion in
2626 # libraries.
2627 if (var ($xlib . '_LIBADD'))
2628 {
2629 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2630 {
2631 $seen_libobjs = 1;
2632 }
2633 }
2634 else
2635 {
2636 &define_variable ($xlib . "_LIBADD", '', $where);
2637 }
2639 reject_var ($xlib . '_LDADD',
2640 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2642 # Make sure we at look at this.
2643 set_seen ($xlib . '_DEPENDENCIES');
2644 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2646 &handle_source_transform ($xlib, $onelib, $obj, $where,
2647 NONLIBTOOL => 1, LIBTOOL => 0);
2649 # If the resulting library lies in a subdirectory,
2650 # make sure this directory will exist.
2651 my $dirstamp = require_build_directory_maybe ($onelib);
2652 my $verbose = verbose_flag ('AR');
2653 my $silent = silent_flag ();
2655 $output_rules .= &file_contents ('library',
2656 $where,
2657 VERBOSE => $verbose,
2658 SILENT => $silent,
2659 LIBRARY => $onelib,
2660 XLIBRARY => $xlib,
2661 DIRSTAMP => $dirstamp);
2663 if ($seen_libobjs)
2664 {
2665 if (var ($xlib . '_LIBADD'))
2666 {
2667 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2668 }
2669 }
2671 if (! $seen_ar)
2672 {
2673 msg ('extra-portability', $where,
2674 "'$onelib': linking libraries using a non-POSIX\n"
2675 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2676 }
2677 }
2678 }
2681 # handle_ltlibraries ()
2682 # ---------------------
2683 # Handle shared libraries.
2684 sub handle_ltlibraries
2685 {
2686 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2687 'noinst', 'lib', 'pkglib', 'check');
2688 return if ! @liblist;
2689 $must_handle_compiled_objects = 1;
2691 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2692 'noinst', 'check');
2694 if (@prefix)
2695 {
2696 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2697 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2698 }
2700 my %instdirs = ();
2701 my %instsubdirs = ();
2702 my %instconds = ();
2703 my %liblocations = (); # Location (in Makefile.am) of each library.
2705 foreach my $key (@prefix)
2706 {
2707 # Get the installation directory of each library.
2708 my $dir = $key;
2709 my $strip_subdir = 1;
2710 if ($dir =~ /^nobase_/)
2711 {
2712 $dir =~ s/^nobase_//;
2713 $strip_subdir = 0;
2714 }
2715 my $var = rvar ($key . '_LTLIBRARIES');
2717 # We reject libraries which are installed in several places
2718 # in the same condition, because we can only specify one
2719 # '-rpath' option.
2720 $var->traverse_recursively
2721 (sub
2722 {
2723 my ($var, $val, $cond, $full_cond) = @_;
2724 my $hcond = $full_cond->human;
2725 my $where = $var->rdef ($cond)->location;
2726 my $ldir = '';
2727 $ldir = '/' . dirname ($val)
2728 if (!$strip_subdir);
2729 # A library cannot be installed in different directories
2730 # in overlapping conditions.
2731 if (exists $instconds{$val})
2732 {
2733 my ($msg, $acond) =
2734 $instconds{$val}->ambiguous_p ($val, $full_cond);
2736 if ($msg)
2737 {
2738 error ($where, $msg, partial => 1);
2739 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2740 $dirtxt = "built for '$dir'"
2741 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2742 my $dircond =
2743 $full_cond->true ? "" : " in condition $hcond";
2745 error ($where, "'$val' should be $dirtxt$dircond ...",
2746 partial => 1);
2748 my $hacond = $acond->human;
2749 my $adir = $instdirs{$val}{$acond};
2750 my $adirtxt = "installed in '$adir'";
2751 $adirtxt = "built for '$adir'"
2752 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2753 || $adir eq 'check');
2754 my $adircond = $acond->true ? "" : " in condition $hacond";
2756 my $onlyone = ($dir ne $adir) ?
2757 ("\nLibtool libraries can be built for only one "
2758 . "destination") : "";
2760 error ($liblocations{$val}{$acond},
2761 "... and should also be $adirtxt$adircond.$onlyone");
2762 return;
2763 }
2764 }
2765 else
2766 {
2767 $instconds{$val} = new Automake::DisjConditions;
2768 }
2769 $instdirs{$val}{$full_cond} = $dir;
2770 $instsubdirs{$val}{$full_cond} = $ldir;
2771 $liblocations{$val}{$full_cond} = $where;
2772 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2773 },
2774 sub
2775 {
2776 return ();
2777 },
2778 skip_ac_subst => 1);
2779 }
2781 foreach my $pair (@liblist)
2782 {
2783 my ($where, $onelib) = @$pair;
2785 my $seen_libobjs = 0;
2786 my $obj = '.lo';
2788 # Canonicalize names and check for misspellings.
2789 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2790 '_SOURCES', '_OBJECTS',
2791 '_DEPENDENCIES');
2793 # Check that the library fits the standard naming convention.
2794 my $libname_rx = '^lib.*\.la';
2795 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2796 my $ldvar2 = var ('LDFLAGS');
2797 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2798 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2799 {
2800 # Relax name checking for libtool modules.
2801 $libname_rx = '\.la';
2802 }
2804 my $bn = basename ($onelib);
2805 if ($bn !~ /$libname_rx$/)
2806 {
2807 my $type = 'library';
2808 if ($libname_rx eq '\.la')
2809 {
2810 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2811 $type = 'module';
2812 }
2813 else
2814 {
2815 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2816 }
2817 my $suggestion = dirname ($onelib) . "/$bn";
2818 $suggestion =~ s|^\./||g;
2819 msg ('error-gnu/warn', $where,
2820 "'$onelib' is not a standard libtool $type name\n"
2821 . "did you mean '$suggestion'?")
2822 }
2824 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2826 $where->push_context ("while processing Libtool library '$onelib'");
2827 $where->set (INTERNAL->get);
2829 # Make sure we look at these.
2830 set_seen ($xlib . '_LDFLAGS');
2831 set_seen ($xlib . '_DEPENDENCIES');
2832 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2834 # Generate support for conditional object inclusion in
2835 # libraries.
2836 if (var ($xlib . '_LIBADD'))
2837 {
2838 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2839 {
2840 $seen_libobjs = 1;
2841 }
2842 }
2843 else
2844 {
2845 &define_variable ($xlib . "_LIBADD", '', $where);
2846 }
2848 reject_var ("${xlib}_LDADD",
2849 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2852 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2853 NONLIBTOOL => 0, LIBTOOL => 1);
2855 # Determine program to use for link.
2856 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2857 $vlink = verbose_flag ($vlink || 'GEN');
2859 my $rpathvar = "am_${xlib}_rpath";
2860 my $rpath = "\$($rpathvar)";
2861 foreach my $rcond ($instconds{$onelib}->conds)
2862 {
2863 my $val;
2864 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2865 || $instdirs{$onelib}{$rcond} eq 'noinst'
2866 || $instdirs{$onelib}{$rcond} eq 'check')
2867 {
2868 # It's an EXTRA_ library, so we can't specify -rpath,
2869 # because we don't know where the library will end up.
2870 # The user probably knows, but generally speaking automake
2871 # doesn't -- and in fact configure could decide
2872 # dynamically between two different locations.
2873 $val = '';
2874 }
2875 else
2876 {
2877 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2878 $val .= $instsubdirs{$onelib}{$rcond}
2879 if defined $instsubdirs{$onelib}{$rcond};
2880 }
2881 if ($rcond->true)
2882 {
2883 # If $rcond is true there is only one condition and
2884 # there is no point defining an helper variable.
2885 $rpath = $val;
2886 }
2887 else
2888 {
2889 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2890 }
2891 }
2893 # If the resulting library lies in a subdirectory,
2894 # make sure this directory will exist.
2895 my $dirstamp = require_build_directory_maybe ($onelib);
2897 # Remember to cleanup .libs/ in this directory.
2898 my $dirname = dirname $onelib;
2899 $libtool_clean_directories{$dirname} = 1;
2901 $output_rules .= &file_contents ('ltlibrary',
2902 $where,
2903 LTLIBRARY => $onelib,
2904 XLTLIBRARY => $xlib,
2905 RPATH => $rpath,
2906 XLINK => $xlink,
2907 VERBOSE => $vlink,
2908 DIRSTAMP => $dirstamp);
2909 if ($seen_libobjs)
2910 {
2911 if (var ($xlib . '_LIBADD'))
2912 {
2913 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2914 }
2915 }
2917 if (! $seen_ar)
2918 {
2919 msg ('extra-portability', $where,
2920 "'$onelib': linking libtool libraries using a non-POSIX\n"
2921 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2922 }
2923 }
2924 }
2926 # See if any _SOURCES variable were misspelled.
2927 sub check_typos ()
2928 {
2929 # It is ok if the user sets this particular variable.
2930 set_seen 'AM_LDFLAGS';
2932 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2933 {
2934 foreach my $var (variables $primary)
2935 {
2936 my $varname = $var->name;
2937 # A configure variable is always legitimate.
2938 next if exists $configure_vars{$varname};
2940 for my $cond ($var->conditions->conds)
2941 {
2942 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2943 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2944 . " program or\nlibrary has '$1' as canonical name"
2945 . " (possible typo)")
2946 unless $var->rdef ($cond)->seen;
2947 }
2948 }
2949 }
2950 }
2953 # Handle scripts.
2954 sub handle_scripts
2955 {
2956 # NOTE we no longer automatically clean SCRIPTS, because it is
2957 # useful to sometimes distribute scripts verbatim. This happens
2958 # e.g. in Automake itself.
2959 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2960 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2961 'noinst', 'check');
2962 }
2967 ## ------------------------ ##
2968 ## Handling Texinfo files. ##
2969 ## ------------------------ ##
2971 # ($OUTFILE, $VFILE)
2972 # &scan_texinfo_file ($FILENAME)
2973 # ------------------------------
2974 # $OUTFILE - name of the info file produced by $FILENAME.
2975 # $VFILE - name of the version.texi file used (undef if none).
2976 sub scan_texinfo_file ($)
2977 {
2978 my ($filename) = @_;
2980 my $texi = new Automake::XFile "< $filename";
2981 verb "reading $filename";
2983 my ($outfile, $vfile);
2984 while ($_ = $texi->getline)
2985 {
2986 if (/^\@setfilename +(\S+)/)
2987 {
2988 # Honor only the first @setfilename. (It's possible to have
2989 # more occurrences later if the manual shows examples of how
2990 # to use @setfilename...)
2991 next if $outfile;
2993 $outfile = $1;
2994 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2995 {
2996 error ("$filename:$.",
2997 "output '$outfile' has unrecognized extension");
2998 return;
2999 }
3000 }
3001 # A "version.texi" file is actually any file whose name matches
3002 # "vers*.texi".
3003 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3004 {
3005 $vfile = $1;
3006 }
3007 }
3009 if (! $outfile)
3010 {
3011 err_am "'$filename' missing \@setfilename";
3012 return;
3013 }
3015 my $infobase = basename ($filename);
3016 $infobase =~ s/\.te?xi(nfo)?$//;
3017 return ($outfile, $vfile);
3018 }
3021 # ($DIRSTAMP, @CLEAN_FILES)
3022 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3023 # ------------------------------------------------------------------
3024 # SOURCE - the source Texinfo file
3025 # DEST - the destination Info file
3026 # INSRC - whether DEST should be built in the source tree
3027 # DEPENDENCIES - known dependencies
3028 sub output_texinfo_build_rules ($$$@)
3029 {
3030 my ($source, $dest, $insrc, @deps) = @_;
3032 # Split 'a.texi' into 'a' and '.texi'.
3033 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3034 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3036 $ssfx ||= "";
3037 $dsfx ||= "";
3039 # We can output two kinds of rules: the "generic" rules use Make
3040 # suffix rules and are appropriate when $source and $dest do not lie
3041 # in a sub-directory; the "specific" rules are needed in the other
3042 # case.
3043 #
3044 # The former are output only once (this is not really apparent here,
3045 # but just remember that some logic deeper in Automake will not
3046 # output the same rule twice); while the later need to be output for
3047 # each Texinfo source.
3048 my $generic;
3049 my $makeinfoflags;
3050 my $sdir = dirname $source;
3051 if ($sdir eq '.' && dirname ($dest) eq '.')
3052 {
3053 $generic = 1;
3054 $makeinfoflags = '-I $(srcdir)';
3055 }
3056 else
3057 {
3058 $generic = 0;
3059 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3060 }
3062 # A directory can contain two kinds of info files: some built in the
3063 # source tree, and some built in the build tree. The rules are
3064 # different in each case. However we cannot output two different
3065 # set of generic rules. Because in-source builds are more usual, we
3066 # use generic rules in this case and fall back to "specific" rules
3067 # for build-dir builds. (It should not be a problem to invert this
3068 # if needed.)
3069 $generic = 0 unless $insrc;
3071 # We cannot use a suffix rule to build info files with an empty
3072 # extension. Otherwise we would output a single suffix inference
3073 # rule, with separate dependencies, as in
3074 #
3075 # .texi:
3076 # $(MAKEINFO) ...
3077 # foo.info: foo.texi
3078 #
3079 # which confuse Solaris make. (See the Autoconf manual for
3080 # details.) Therefore we use a specific rule in this case. This
3081 # applies to info files only (dvi and pdf files always have an
3082 # extension).
3083 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3085 # If the resulting file lies in a subdirectory,
3086 # make sure this directory will exist.
3087 my $dirstamp = require_build_directory_maybe ($dest);
3089 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3091 $output_rules .= file_contents ('texibuild',
3092 new Automake::Location,
3093 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3094 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3095 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3096 DEPS => "@deps",
3097 DEST_PREFIX => $dpfx,
3098 DEST_INFO_PREFIX => $dipfx,
3099 DEST_SUFFIX => $dsfx,
3100 DIRSTAMP => $dirstamp,
3101 GENERIC => $generic,
3102 GENERIC_INFO => $generic_info,
3103 INSRC => $insrc,
3104 MAKEINFOFLAGS => $makeinfoflags,
3105 SILENT => silent_flag(),
3106 SOURCE => ($generic
3107 ? '$<' : $source),
3108 SOURCE_INFO => ($generic_info
3109 ? '$<' : $source),
3110 SOURCE_REAL => $source,
3111 SOURCE_SUFFIX => $ssfx,
3112 TEXIQUIET => verbose_flag('texinfo'),
3113 TEXIDEVNULL => verbose_flag('texidevnull'),
3114 );
3115 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3116 }
3119 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3120 # handle_texinfo_helper ($info_texinfos)
3121 # --------------------------------------
3122 # Handle all Texinfo source; helper for handle_texinfo.
3123 sub handle_texinfo_helper ($)
3124 {
3125 my ($info_texinfos) = @_;
3126 my (@infobase, @info_deps_list, @texi_deps);
3127 my %versions;
3128 my $done = 0;
3129 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3131 # Build a regex matching user-cleaned files.
3132 my $d = var 'DISTCLEANFILES';
3133 my $c = var 'CLEANFILES';
3134 my @f = ();
3135 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3136 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3137 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3138 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3140 foreach my $texi
3141 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3142 {
3143 my $infobase = $texi;
3144 $infobase =~ s/\.(txi|texinfo|texi)$//;
3146 if ($infobase eq $texi)
3147 {
3148 # FIXME: report line number.
3149 err_am "texinfo file '$texi' has unrecognized extension";
3150 next;
3151 }
3153 push @infobase, $infobase;
3155 # If 'version.texi' is referenced by input file, then include
3156 # automatic versioning capability.
3157 my ($out_file, $vtexi) =
3158 scan_texinfo_file ("$relative_dir/$texi")
3159 or next;
3160 # Directory of auxiliary files and build by-products used by texi2dvi
3161 # and texi2pdf.
3162 push @mostly_cleans, "$infobase.t2d";
3163 push @mostly_cleans, "$infobase.t2p";
3165 # If the Texinfo source is in a subdirectory, create the
3166 # resulting info in this subdirectory. If it is in the current
3167 # directory, try hard to not prefix "./" because it breaks the
3168 # generic rules.
3169 my $outdir = dirname ($texi) . '/';
3170 $outdir = "" if $outdir eq './';
3171 $out_file = $outdir . $out_file;
3173 # Until Automake 1.6.3, .info files were built in the
3174 # source tree. This was an obstacle to the support of
3175 # non-distributed .info files, and non-distributed .texi
3176 # files.
3177 #
3178 # * Non-distributed .texi files is important in some packages
3179 # where .texi files are built at make time, probably using
3180 # other binaries built in the package itself, maybe using
3181 # tools or information found on the build host. Because
3182 # these files are not distributed they are always rebuilt
3183 # at make time; they should therefore not lie in the source
3184 # directory. One plan was to support this using
3185 # nodist_info_TEXINFOS or something similar. (Doing this
3186 # requires some sanity checks. For instance Automake should
3187 # not allow:
3188 # dist_info_TEXINFOS = foo.texi
3189 # nodist_foo_TEXINFOS = included.texi
3190 # because a distributed file should never depend on a
3191 # non-distributed file.)
3192 #
3193 # * If .texi files are not distributed, then .info files should
3194 # not be distributed either. There are also cases where one
3195 # wants to distribute .texi files, but does not want to
3196 # distribute the .info files. For instance the Texinfo package
3197 # distributes the tool used to build these files; it would
3198 # be a waste of space to distribute them. It's not clear
3199 # which syntax we should use to indicate that .info files should
3200 # not be distributed. Akim Demaille suggested that eventually
3201 # we switch to a new syntax:
3202 # | Maybe we should take some inspiration from what's already
3203 # | done in the rest of Automake. Maybe there is too much
3204 # | syntactic sugar here, and you want
3205 # | nodist_INFO = bar.info
3206 # | dist_bar_info_SOURCES = bar.texi
3207 # | bar_texi_DEPENDENCIES = foo.texi
3208 # | with a bit of magic to have bar.info represent the whole
3209 # | bar*info set. That's a lot more verbose that the current
3210 # | situation, but it is # not new, hence the user has less
3211 # | to learn.
3212 # |
3213 # | But there is still too much room for meaningless specs:
3214 # | nodist_INFO = bar.info
3215 # | dist_bar_info_SOURCES = bar.texi
3216 # | dist_PS = bar.ps something-written-by-hand.ps
3217 # | nodist_bar_ps_SOURCES = bar.texi
3218 # | bar_texi_DEPENDENCIES = foo.texi
3219 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3220 #
3221 # Back to the point, it should be clear that in order to support
3222 # non-distributed .info files, we need to build them in the
3223 # build tree, not in the source tree (non-distributed .texi
3224 # files are less of a problem, because we do not output build
3225 # rules for them). In Automake 1.7 .info build rules have been
3226 # largely cleaned up so that .info files get always build in the
3227 # build tree, even when distributed. The idea was that
3228 # (1) if during a VPATH build the .info file was found to be
3229 # absent or out-of-date (in the source tree or in the
3230 # build tree), Make would rebuild it in the build tree.
3231 # If an up-to-date source-tree of the .info file existed,
3232 # make would not rebuild it in the build tree.
3233 # (2) having two copies of .info files, one in the source tree
3234 # and one (newer) in the build tree is not a problem
3235 # because 'make dist' always pick files in the build tree
3236 # first.
3237 # However it turned out the be a bad idea for several reasons:
3238 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3239 # like GNU Make on point (1) above. These implementations
3240 # of Make would always rebuild .info files in the build
3241 # tree, even if such files were up to date in the source
3242 # tree. Consequently, it was impossible to perform a VPATH
3243 # build of a package containing Texinfo files using these
3244 # Make implementations.
3245 # (Refer to the Autoconf Manual, section "Limitation of
3246 # Make", paragraph "VPATH", item "target lookup", for
3247 # an account of the differences between these
3248 # implementations.)
3249 # * The GNU Coding Standards require these files to be built
3250 # in the source-tree (when they are distributed, that is).
3251 # * Keeping a fresher copy of distributed files in the
3252 # build tree can be annoying during development because
3253 # - if the files is kept under CVS, you really want it
3254 # to be updated in the source tree
3255 # - it is confusing that 'make distclean' does not erase
3256 # all files in the build tree.
3257 #
3258 # Consequently, starting with Automake 1.8, .info files are
3259 # built in the source tree again. Because we still plan to
3260 # support non-distributed .info files at some point, we
3261 # have a single variable ($INSRC) that controls whether
3262 # the current .info file must be built in the source tree
3263 # or in the build tree. Actually this variable is switched
3264 # off for .info files that appear to be cleaned; this is
3265 # for backward compatibility with package such as Texinfo,
3266 # which do things like
3267 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3268 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3269 # # Do not create info files for distribution.
3270 # dist-info:
3271 # in order not to distribute .info files.
3272 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3274 my $soutdir = '$(srcdir)/' . $outdir;
3275 $outdir = $soutdir if $insrc;
3277 # If user specified file_TEXINFOS, then use that as explicit
3278 # dependency list.
3279 @texi_deps = ();
3280 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3282 my $canonical = canonicalize ($infobase);
3283 if (var ($canonical . "_TEXINFOS"))
3284 {
3285 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3286 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3287 }
3289 my ($dirstamp, @cfiles) =
3290 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3291 push (@texi_cleans, @cfiles);
3293 push (@info_deps_list, $out_file);
3295 # If a vers*.texi file is needed, emit the rule.
3296 if ($vtexi)
3297 {
3298 err_am ("'$vtexi', included in '$texi', "
3299 . "also included in '$versions{$vtexi}'")
3300 if defined $versions{$vtexi};
3301 $versions{$vtexi} = $texi;
3303 # We number the stamp-vti files. This is doable since the
3304 # actual names don't matter much. We only number starting
3305 # with the second one, so that the common case looks nice.
3306 my $vti = ($done ? $done : 'vti');
3307 ++$done;
3309 # This is ugly, but it is our historical practice.
3310 if ($config_aux_dir_set_in_configure_ac)
3311 {
3312 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3313 'mdate-sh');
3314 }
3315 else
3316 {
3317 require_file_with_macro (TRUE, 'info_TEXINFOS',
3318 FOREIGN, 'mdate-sh');
3319 }
3321 my $conf_dir;
3322 if ($config_aux_dir_set_in_configure_ac)
3323 {
3324 $conf_dir = "$am_config_aux_dir/";
3325 }
3326 else
3327 {
3328 $conf_dir = '$(srcdir)/';
3329 }
3330 $output_rules .= file_contents ('texi-vers',
3331 new Automake::Location,
3332 TEXI => $texi,
3333 VTI => $vti,
3334 STAMPVTI => "${soutdir}stamp-$vti",
3335 VTEXI => "$soutdir$vtexi",
3336 MDDIR => $conf_dir,
3337 DIRSTAMP => $dirstamp);
3338 }
3339 }
3341 # Handle location of texinfo.tex.
3342 my $need_texi_file = 0;
3343 my $texinfodir;
3344 if (var ('TEXINFO_TEX'))
3345 {
3346 # The user defined TEXINFO_TEX so assume he knows what he is
3347 # doing.
3348 $texinfodir = ('$(srcdir)/'
3349 . dirname (variable_value ('TEXINFO_TEX')));
3350 }
3351 elsif ($config_aux_dir_set_in_configure_ac)
3352 {
3353 $texinfodir = $am_config_aux_dir;
3354 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3355 $need_texi_file = 2; # so that we require_conf_file later
3356 }
3357 else
3358 {
3359 $texinfodir = '$(srcdir)';
3360 $need_texi_file = 1;
3361 }
3362 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3364 push (@dist_targets, 'dist-info');
3366 if (! option 'no-installinfo')
3367 {
3368 # Make sure documentation is made and installed first. Use
3369 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3370 # get run twice during "make all".
3371 unshift (@all, '$(INFO_DEPS)');
3372 }
3374 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3375 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3376 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3377 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3379 # This next isn't strictly needed now -- the places that look here
3380 # could easily be changed to look in info_TEXINFOS. But this is
3381 # probably better, in case noinst_TEXINFOS is ever supported.
3382 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3384 # Do some error checking. Note that this file is not required
3385 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3386 # up above.
3387 if ($need_texi_file && ! option 'no-texinfo.tex')
3388 {
3389 if ($need_texi_file > 1)
3390 {
3391 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3392 'texinfo.tex');
3393 }
3394 else
3395 {
3396 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3397 'texinfo.tex');
3398 }
3399 }
3401 return (makefile_wrap ("", "\t ", @mostly_cleans),
3402 makefile_wrap ("", "\t ", @texi_cleans),
3403 makefile_wrap ("", "\t ", @maint_cleans));
3404 }
3407 # handle_texinfo ()
3408 # -----------------
3409 # Handle all Texinfo source.
3410 sub handle_texinfo ()
3411 {
3412 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3413 # FIXME: I think this is an obsolete future feature name.
3414 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3416 my $info_texinfos = var ('info_TEXINFOS');
3417 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3418 if ($info_texinfos)
3419 {
3420 define_verbose_texinfo;
3421 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3422 chomp $mostlyclean;
3423 chomp $clean;
3424 chomp $maintclean;
3425 }
3427 $output_rules .= file_contents ('texinfos',
3428 new Automake::Location,
3429 AM_V_DVIPS => verbose_flag('DVIPS'),
3430 MOSTLYCLEAN => $mostlyclean,
3431 TEXICLEAN => $clean,
3432 MAINTCLEAN => $maintclean,
3433 'LOCAL-TEXIS' => !!$info_texinfos,
3434 TEXIQUIET => verbose_flag('texinfo'));
3435 }
3438 # Handle any man pages.
3439 sub handle_man_pages
3440 {
3441 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3443 # Find all the sections in use. We do this by first looking for
3444 # "standard" sections, and then looking for any additional
3445 # sections used in man_MANS.
3446 my (%sections, %notrans_sections, %trans_sections,
3447 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3448 # We handle nodist_ for uniformity. man pages aren't distributed
3449 # by default so it isn't actually very important.
3450 foreach my $npfx ('', 'notrans_')
3451 {
3452 foreach my $pfx ('', 'dist_', 'nodist_')
3453 {
3454 # Add more sections as needed.
3455 foreach my $section ('0'..'9', 'n', 'l')
3456 {
3457 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3458 if (var ($varname))
3459 {
3460 $sections{$section} = 1;
3461 $varname = '$(' . $varname . ')';
3462 if ($npfx eq 'notrans_')
3463 {
3464 $notrans_sections{$section} = 1;
3465 $notrans_sect_vars{$varname} = 1;
3466 }
3467 else
3468 {
3469 $trans_sections{$section} = 1;
3470 $trans_sect_vars{$varname} = 1;
3471 }
3473 &push_dist_common ($varname)
3474 if $pfx eq 'dist_';
3475 }
3476 }
3478 my $varname = $npfx . $pfx . 'man_MANS';
3479 my $var = var ($varname);
3480 if ($var)
3481 {
3482 foreach ($var->value_as_list_recursive)
3483 {
3484 # A page like 'foo.1c' goes into man1dir.
3485 if (/\.([0-9a-z])([a-z]*)$/)
3486 {
3487 $sections{$1} = 1;
3488 if ($npfx eq 'notrans_')
3489 {
3490 $notrans_sections{$1} = 1;
3491 }
3492 else
3493 {
3494 $trans_sections{$1} = 1;
3495 }
3496 }
3497 }
3499 $varname = '$(' . $varname . ')';
3500 if ($npfx eq 'notrans_')
3501 {
3502 $notrans_vars{$varname} = 1;
3503 }
3504 else
3505 {
3506 $trans_vars{$varname} = 1;
3507 }
3508 &push_dist_common ($varname)
3509 if $pfx eq 'dist_';
3510 }
3511 }
3512 }
3514 return unless %sections;
3516 my @unsorted_deps;
3518 # Build section independent variables.
3519 my $have_notrans = %notrans_vars;
3520 my @notrans_list = sort keys %notrans_vars;
3521 my $have_trans = %trans_vars;
3522 my @trans_list = sort keys %trans_vars;
3524 # Now for each section, generate an install and uninstall rule.
3525 # Sort sections so output is deterministic.
3526 foreach my $section (sort keys %sections)
3527 {
3528 # Build section dependent variables.
3529 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3530 my $trans_mans = $have_trans || exists $trans_sections{$section};
3531 my (%notrans_this_sect, %trans_this_sect);
3532 my $expr = 'man' . $section . '_MANS';
3533 foreach my $varname (keys %notrans_sect_vars)
3534 {
3535 if ($varname =~ /$expr/)
3536 {
3537 $notrans_this_sect{$varname} = 1;
3538 }
3539 }
3540 foreach my $varname (keys %trans_sect_vars)
3541 {
3542 if ($varname =~ /$expr/)
3543 {
3544 $trans_this_sect{$varname} = 1;
3545 }
3546 }
3547 my @notrans_sect_list = sort keys %notrans_this_sect;
3548 my @trans_sect_list = sort keys %trans_this_sect;
3549 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3550 keys %notrans_this_sect, keys %trans_this_sect);
3551 my @deps = sort @unsorted_deps;
3552 $output_rules .= &file_contents ('mans',
3553 new Automake::Location,
3554 SECTION => $section,
3555 DEPS => "@deps",
3556 NOTRANS_MANS => $notrans_mans,
3557 NOTRANS_SECT_LIST => "@notrans_sect_list",
3558 HAVE_NOTRANS => $have_notrans,
3559 NOTRANS_LIST => "@notrans_list",
3560 TRANS_MANS => $trans_mans,
3561 TRANS_SECT_LIST => "@trans_sect_list",
3562 HAVE_TRANS => $have_trans,
3563 TRANS_LIST => "@trans_list");
3564 }
3566 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3567 keys %notrans_sect_vars, keys %trans_sect_vars);
3568 my @mans = sort @unsorted_deps;
3569 $output_vars .= file_contents ('mans-vars',
3570 new Automake::Location,
3571 MANS => "@mans");
3573 push (@all, '$(MANS)')
3574 unless option 'no-installman';
3575 }
3577 # Handle DATA variables.
3578 sub handle_data
3579 {
3580 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3581 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3582 'ps', 'sysconf', 'sharedstate', 'localstate',
3583 'pkgdata', 'lisp', 'noinst', 'check');
3584 }
3586 # Handle TAGS.
3587 sub handle_tags
3588 {
3589 my @config;
3590 foreach my $spec (@config_headers)
3591 {
3592 my ($out, @ins) = split_config_file_spec ($spec);
3593 foreach my $in (@ins)
3594 {
3595 # If the config header source is in this directory,
3596 # require it.
3597 push @config, basename ($in)
3598 if $relative_dir eq dirname ($in);
3599 }
3600 }
3602 define_variable ('am__tagged_files',
3603 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3604 . "@config", INTERNAL);
3606 if (rvar('am__tagged_files')->value_as_list_recursive
3607 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3608 {
3609 $output_rules .= &file_contents ('tags', new Automake::Location);
3610 set_seen 'TAGS_DEPENDENCIES';
3611 }
3612 else
3613 {
3614 reject_var ('TAGS_DEPENDENCIES',
3615 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3616 . " without\nsources or 'ETAGS_ARGS'");
3617 # Every Makefile must define some sort of TAGS rule.
3618 # Otherwise, it would be possible for a top-level "make TAGS"
3619 # to fail because some subdirectory failed. Ditto ctags and
3620 # cscope.
3621 $output_rules .=
3622 "tags TAGS:\n\n" .
3623 "ctags CTAGS:\n\n" .
3624 "cscope cscopelist:\n\n";
3625 }
3626 }
3629 # user_phony_rule ($NAME)
3630 # -----------------------
3631 # Return false if rule $NAME does not exist. Otherwise,
3632 # declare it as phony, complete its definition (in case it is
3633 # conditional), and return its Automake::Rule instance.
3634 sub user_phony_rule ($)
3635 {
3636 my ($name) = @_;
3637 my $rule = rule $name;
3638 if ($rule)
3639 {
3640 depend ('.PHONY', $name);
3641 # Define $NAME in all condition where it is not already defined,
3642 # so that it is always OK to depend on $NAME.
3643 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3644 {
3645 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3646 $c, INTERNAL);
3647 $output_rules .= $c->subst_string . "$name:\n";
3648 }
3649 }
3650 return $rule;
3651 }
3654 # handle_dist
3655 # -----------
3656 # Handle 'dist' target.
3657 sub handle_dist ()
3658 {
3659 # Substitutions for distdir.am
3660 my %transform;
3662 # Define DIST_SUBDIRS. This must always be done, regardless of the
3663 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3664 my $subdirs = var ('SUBDIRS');
3665 if ($subdirs)
3666 {
3667 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3668 # to all possible directories, and use it. If DIST_SUBDIRS is
3669 # defined, just use it.
3671 # Note that we check DIST_SUBDIRS first on purpose, so that
3672 # we don't call has_conditional_contents for now reason.
3673 # (In the past one project used so many conditional subdirectories
3674 # that calling has_conditional_contents on SUBDIRS caused
3675 # automake to grow to 150Mb -- this should not happen with
3676 # the current implementation of has_conditional_contents,
3677 # but it's more efficient to avoid the call anyway.)
3678 if (var ('DIST_SUBDIRS'))
3679 {
3680 }
3681 elsif ($subdirs->has_conditional_contents)
3682 {
3683 define_pretty_variable
3684 ('DIST_SUBDIRS', TRUE, INTERNAL,
3685 uniq ($subdirs->value_as_list_recursive));
3686 }
3687 else
3688 {
3689 # We always define this because that is what 'distclean'
3690 # wants.
3691 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3692 '$(SUBDIRS)');
3693 }
3694 }
3696 # The remaining definitions are only required when a dist target is used.
3697 return if option 'no-dist';
3699 # At least one of the archive formats must be enabled.
3700 if ($relative_dir eq '.')
3701 {
3702 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3703 $archive_defined ||=
3704 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz);
3705 error (option 'no-dist-gzip',
3706 "no-dist-gzip specified but no dist-* specified,\n"
3707 . "at least one archive format must be enabled")
3708 unless $archive_defined;
3709 }
3711 # Look for common files that should be included in distribution.
3712 # If the aux dir is set, and it does not have a Makefile.am, then
3713 # we check for these files there as well.
3714 my $check_aux = 0;
3715 if ($relative_dir eq '.'
3716 && $config_aux_dir_set_in_configure_ac)
3717 {
3718 if (! &is_make_dir ($config_aux_dir))
3719 {
3720 $check_aux = 1;
3721 }
3722 }
3723 foreach my $cfile (@common_files)
3724 {
3725 if (dir_has_case_matching_file ($relative_dir, $cfile)
3726 # The file might be absent, but if it can be built it's ok.
3727 || rule $cfile)
3728 {
3729 &push_dist_common ($cfile);
3730 }
3732 # Don't use 'elsif' here because a file might meaningfully
3733 # appear in both directories.
3734 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3735 {
3736 &push_dist_common ("$config_aux_dir/$cfile")
3737 }
3738 }
3740 # We might copy elements from $configure_dist_common to
3741 # %dist_common if we think we need to. If the file appears in our
3742 # directory, we would have discovered it already, so we don't
3743 # check that. But if the file is in a subdir without a Makefile,
3744 # we want to distribute it here if we are doing '.'. Ugly!
3745 # Also, in some corner cases, it's possible that the following code
3746 # will cause the same file to appear in the $(DIST_COMMON) variables
3747 # of two distinct Makefiles; but this is not a problem, since the
3748 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3749 # file being distributed multiple times.
3750 # See also automake bug#9651.
3751 if ($relative_dir eq '.')
3752 {
3753 foreach my $file (split (' ' , $configure_dist_common))
3754 {
3755 my $dir = dirname ($file);
3756 push_dist_common ($file)
3757 if ($dir eq '.' || ! is_make_dir ($dir));
3758 }
3759 }
3761 # Files to distributed. Don't use ->value_as_list_recursive
3762 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3763 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3764 @dist_common = uniq @dist_common;
3765 variable_delete 'DIST_COMMON';
3766 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3768 # Now that we've processed DIST_COMMON, disallow further attempts
3769 # to set it.
3770 $handle_dist_run = 1;
3772 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3773 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3775 # If the target 'dist-hook' exists, make sure it is run. This
3776 # allows users to do random weird things to the distribution
3777 # before it is packaged up.
3778 push (@dist_targets, 'dist-hook')
3779 if user_phony_rule 'dist-hook';
3780 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3782 my $flm = option ('filename-length-max');
3783 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3785 $output_rules .= &file_contents ('distdir',
3786 new Automake::Location,
3787 %transform,
3788 FILENAME_FILTER => $filename_filter);
3789 }
3792 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3793 # -------------------------------------------------------
3794 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3795 # name. Use $WHERE as a location in the diagnostic, if any.
3796 sub check_directory ($$;$)
3797 {
3798 my ($dir, $where, $reldir) = @_;
3799 $reldir = '.' unless defined $reldir;
3801 error $where, "required directory $reldir/$dir does not exist"
3802 unless -d "$reldir/$dir";
3804 # If an 'obj/' directory exists, BSD make will enter it before
3805 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3806 # will not be read.
3807 #
3808 # % cat Makefile
3809 # all:
3810 # echo Hello
3811 # % cat obj/Makefile
3812 # all:
3813 # echo World
3814 # % make # GNU make
3815 # echo Hello
3816 # Hello
3817 # % pmake # BSD make
3818 # echo World
3819 # World
3820 msg ('portability', $where,
3821 "naming a subdirectory 'obj' causes troubles with BSD make")
3822 if $dir eq 'obj';
3824 # 'aux' is probably the most important of the following forbidden name,
3825 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3826 msg ('portability', $where,
3827 "name '$dir' is reserved on W32 and DOS platforms")
3828 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3829 }
3831 # check_directories_in_var ($VARIABLE)
3832 # ------------------------------------
3833 # Recursively check all items in variables $VARIABLE as directories
3834 sub check_directories_in_var ($)
3835 {
3836 my ($var) = @_;
3837 $var->traverse_recursively
3838 (sub
3839 {
3840 my ($var, $val, $cond, $full_cond) = @_;
3841 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3842 return ();
3843 },
3844 undef,
3845 skip_ac_subst => 1);
3846 }
3848 # &handle_subdirs ()
3849 # ------------------
3850 # Handle subdirectories.
3851 sub handle_subdirs ()
3852 {
3853 my $subdirs = var ('SUBDIRS');
3854 return
3855 unless $subdirs;
3857 check_directories_in_var $subdirs;
3859 my $dsubdirs = var ('DIST_SUBDIRS');
3860 check_directories_in_var $dsubdirs
3861 if $dsubdirs;
3863 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3864 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3865 }
3868 # ($REGEN, @DEPENDENCIES)
3869 # &scan_aclocal_m4
3870 # ----------------
3871 # If aclocal.m4 creation is automated, return the list of its dependencies.
3872 sub scan_aclocal_m4 ()
3873 {
3874 my $regen_aclocal = 0;
3876 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3877 set_seen 'CONFIGURE_DEPENDENCIES';
3879 if (-f 'aclocal.m4')
3880 {
3881 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3883 my $aclocal = new Automake::XFile "< aclocal.m4";
3884 my $line = $aclocal->getline;
3885 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3886 }
3888 my @ac_deps = ();
3890 if (set_seen ('ACLOCAL_M4_SOURCES'))
3891 {
3892 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3893 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3894 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
3895 . "It should be safe to simply remove it");
3896 }
3898 # Note that it might be possible that aclocal.m4 doesn't exist but
3899 # should be auto-generated. This case probably isn't very
3900 # important.
3902 return ($regen_aclocal, @ac_deps);
3903 }
3906 # Helper function for substitute_ac_subst_variables.
3907 sub substitute_ac_subst_variables_worker($)
3908 {
3909 my ($token) = @_;
3910 return "\@$token\@" if var $token;
3911 return "\${$token\}";
3912 }
3914 # substitute_ac_subst_variables ($TEXT)
3915 # -------------------------------------
3916 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3917 # variable.
3918 sub substitute_ac_subst_variables ($)
3919 {
3920 my ($text) = @_;
3921 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3922 return $text;
3923 }
3925 # @DEPENDENCIES
3926 # &prepend_srcdir (@INPUTS)
3927 # -------------------------
3928 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3929 # if an input file has a directory part the same as the current
3930 # directory, then the directory part is simply replaced by $(srcdir).
3931 # But if the directory part is different, then $(top_srcdir) is
3932 # prepended.
3933 sub prepend_srcdir (@)
3934 {
3935 my (@inputs) = @_;
3936 my @newinputs;
3938 foreach my $single (@inputs)
3939 {
3940 if (dirname ($single) eq $relative_dir)
3941 {
3942 push (@newinputs, '$(srcdir)/' . basename ($single));
3943 }
3944 else
3945 {
3946 push (@newinputs, '$(top_srcdir)/' . $single);
3947 }
3948 }
3949 return @newinputs;
3950 }
3952 # @DEPENDENCIES
3953 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3954 # ---------------------------------------------------
3955 # Compute a list of dependencies appropriate for the rebuild
3956 # rule of
3957 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3958 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
3959 sub rewrite_inputs_into_dependencies ($@)
3960 {
3961 my ($file, @inputs) = @_;
3962 my @res = ();
3964 for my $i (@inputs)
3965 {
3966 # We cannot create dependencies on shell variables.
3967 next if (substitute_ac_subst_variables $i) =~ /\$/;
3969 if (exists $ac_config_files_location{$i} && $i ne $file)
3970 {
3971 my $di = dirname $i;
3972 if ($di eq $relative_dir)
3973 {
3974 $i = basename $i;
3975 }
3976 # In the top-level Makefile we do not use $(top_builddir), because
3977 # we are already there, and since the targets are built without
3978 # a $(top_builddir), it helps BSD Make to match them with
3979 # dependencies.
3980 elsif ($relative_dir ne '.')
3981 {
3982 $i = '$(top_builddir)/' . $i;
3983 }
3984 }
3985 else
3986 {
3987 msg ('error', $ac_config_files_location{$file},
3988 "required file '$i' not found")
3989 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3990 ($i) = prepend_srcdir ($i);
3991 push_dist_common ($i);
3992 }
3993 push @res, $i;
3994 }
3995 return @res;
3996 }
4000 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4001 # ------------------------------------------------------------------
4002 # Handle remaking and configure stuff.
4003 # We need the name of the input file, to do proper remaking rules.
4004 sub handle_configure ($$$@)
4005 {
4006 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4008 prog_error 'empty @inputs'
4009 unless @inputs;
4011 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4012 $makefile_in);
4013 my $rel_makefile = basename $makefile;
4015 my $colon_infile = ':' . join (':', @inputs);
4016 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4017 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4018 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4019 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4020 @configure_deps, @aclocal_m4_deps,
4021 '$(top_srcdir)/' . $configure_ac);
4022 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4023 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4024 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4025 @configuredeps);
4027 my $automake_options = '--' . $strictness_name .
4028 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4030 $output_rules .= file_contents
4031 ('configure',
4032 new Automake::Location,
4033 MAKEFILE => $rel_makefile,
4034 'MAKEFILE-DEPS' => "@rewritten",
4035 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4036 'MAKEFILE-IN' => $rel_makefile_in,
4037 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4038 'MAKEFILE-IN-DEPS' => "@include_stack",
4039 'MAKEFILE-AM' => $rel_makefile_am,
4040 'AUTOMAKE-OPTIONS' => $automake_options,
4041 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4042 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4043 VERBOSE => verbose_flag ('GEN'));
4045 if ($relative_dir eq '.')
4046 {
4047 &push_dist_common ('acconfig.h')
4048 if -f 'acconfig.h';
4049 }
4051 # If we have a configure header, require it.
4052 my $hdr_index = 0;
4053 my @distclean_config;
4054 foreach my $spec (@config_headers)
4055 {
4056 $hdr_index += 1;
4057 # $CONFIG_H_PATH: config.h from top level.
4058 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4059 my $config_h_dir = dirname ($config_h_path);
4061 # If the header is in the current directory we want to build
4062 # the header here. Otherwise, if we're at the topmost
4063 # directory and the header's directory doesn't have a
4064 # Makefile, then we also want to build the header.
4065 if ($relative_dir eq $config_h_dir
4066 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4067 {
4068 my ($cn_sans_dir, $stamp_dir);
4069 if ($relative_dir eq $config_h_dir)
4070 {
4071 $cn_sans_dir = basename ($config_h_path);
4072 $stamp_dir = '';
4073 }
4074 else
4075 {
4076 $cn_sans_dir = $config_h_path;
4077 if ($config_h_dir eq '.')
4078 {
4079 $stamp_dir = '';
4080 }
4081 else
4082 {
4083 $stamp_dir = $config_h_dir . '/';
4084 }
4085 }
4087 # This will also distribute all inputs.
4088 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4090 # Cannot define rebuild rules for filenames with shell variables.
4091 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4093 # Header defined in this directory.
4094 my @files;
4095 if (-f $config_h_path . '.top')
4096 {
4097 push (@files, "$cn_sans_dir.top");
4098 }
4099 if (-f $config_h_path . '.bot')
4100 {
4101 push (@files, "$cn_sans_dir.bot");
4102 }
4104 push_dist_common (@files);
4106 # For now, acconfig.h can only appear in the top srcdir.
4107 if (-f 'acconfig.h')
4108 {
4109 push (@files, '$(top_srcdir)/acconfig.h');
4110 }
4112 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4113 $output_rules .=
4114 file_contents ('remake-hdr',
4115 new Automake::Location,
4116 FILES => "@files",
4117 'FIRST-HDR' => ($hdr_index == 1),
4118 CONFIG_H => $cn_sans_dir,
4119 CONFIG_HIN => $ins[0],
4120 CONFIG_H_DEPS => "@ins",
4121 CONFIG_H_PATH => $config_h_path,
4122 STAMP => "$stamp");
4124 push @distclean_config, $cn_sans_dir, $stamp;
4125 }
4126 }
4128 $output_rules .= file_contents ('clean-hdr',
4129 new Automake::Location,
4130 FILES => "@distclean_config")
4131 if @distclean_config;
4133 # Distribute and define mkinstalldirs only if it is already present
4134 # in the package, for backward compatibility (some people may still
4135 # use $(mkinstalldirs)).
4136 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4137 if (-f $mkidpath)
4138 {
4139 # Use require_file so that any existing script gets updated
4140 # by --force-missing.
4141 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4142 define_variable ('mkinstalldirs',
4143 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4144 }
4145 else
4146 {
4147 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4148 # at least one argument, and $(mkinstalldirs) used to work
4149 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4150 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4151 }
4153 reject_var ('CONFIG_HEADER',
4154 "'CONFIG_HEADER' is an anachronism; now determined "
4155 . "automatically\nfrom '$configure_ac'");
4157 my @config_h;
4158 foreach my $spec (@config_headers)
4159 {
4160 my ($out, @ins) = split_config_file_spec ($spec);
4161 # Generate CONFIG_HEADER define.
4162 if ($relative_dir eq dirname ($out))
4163 {
4164 push @config_h, basename ($out);
4165 }
4166 else
4167 {
4168 push @config_h, "\$(top_builddir)/$out";
4169 }
4170 }
4171 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4172 if @config_h;
4174 # Now look for other files in this directory which must be remade
4175 # by config.status, and generate rules for them.
4176 my @actual_other_files = ();
4177 # These get cleaned only in a VPATH build.
4178 my @actual_other_vpath_files = ();
4179 foreach my $lfile (@other_input_files)
4180 {
4181 my $file;
4182 my @inputs;
4183 if ($lfile =~ /^([^:]*):(.*)$/)
4184 {
4185 # This is the ":" syntax of AC_OUTPUT.
4186 $file = $1;
4187 @inputs = split (':', $2);
4188 }
4189 else
4190 {
4191 # Normal usage.
4192 $file = $lfile;
4193 @inputs = $file . '.in';
4194 }
4196 # Automake files should not be stored in here, but in %MAKE_LIST.
4197 prog_error ("$lfile in \@other_input_files\n"
4198 . "\@other_input_files = (@other_input_files)")
4199 if -f $file . '.am';
4201 my $local = basename ($file);
4203 # We skip files that aren't in this directory. However, if
4204 # the file's directory does not have a Makefile, and we are
4205 # currently doing '.', then we create a rule to rebuild the
4206 # file in the subdir.
4207 my $fd = dirname ($file);
4208 if ($fd ne $relative_dir)
4209 {
4210 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4211 {
4212 $local = $file;
4213 }
4214 else
4215 {
4216 next;
4217 }
4218 }
4220 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4222 # Cannot output rules for shell variables.
4223 next if (substitute_ac_subst_variables $local) =~ /\$/;
4225 my $condstr = '';
4226 my $cond = $ac_config_files_condition{$lfile};
4227 if (defined $cond)
4228 {
4229 $condstr = $cond->subst_string;
4230 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4231 $ac_config_files_location{$file});
4232 }
4233 $output_rules .= ($condstr . $local . ': '
4234 . '$(top_builddir)/config.status '
4235 . "@rewritten_inputs\n"
4236 . $condstr . "\t"
4237 . 'cd $(top_builddir) && '
4238 . '$(SHELL) ./config.status '
4239 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4240 . '$@'
4241 . "\n");
4242 push (@actual_other_files, $local);
4243 }
4245 # For links we should clean destinations and distribute sources.
4246 foreach my $spec (@config_links)
4247 {
4248 my ($link, $file) = split /:/, $spec;
4249 # Some people do AC_CONFIG_LINKS($computed). We only handle
4250 # the DEST:SRC form.
4251 next unless $file;
4252 my $where = $ac_config_files_location{$link};
4254 # Skip destinations that contain shell variables.
4255 if ((substitute_ac_subst_variables $link) !~ /\$/)
4256 {
4257 # We skip links that aren't in this directory. However, if
4258 # the link's directory does not have a Makefile, and we are
4259 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4260 # in '.'s Makefile.in.
4261 my $local = basename ($link);
4262 my $fd = dirname ($link);
4263 if ($fd ne $relative_dir)
4264 {
4265 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4266 {
4267 $local = $link;
4268 }
4269 else
4270 {
4271 $local = undef;
4272 }
4273 }
4274 if ($file ne $link)
4275 {
4276 push @actual_other_files, $local if $local;
4277 }
4278 else
4279 {
4280 push @actual_other_vpath_files, $local if $local;
4281 }
4282 }
4284 # Do not process sources that contain shell variables.
4285 if ((substitute_ac_subst_variables $file) !~ /\$/)
4286 {
4287 my $fd = dirname ($file);
4289 # We distribute files that are in this directory.
4290 # At the top-level ('.') we also distribute files whose
4291 # directory does not have a Makefile.
4292 if (($fd eq $relative_dir)
4293 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4294 {
4295 # The following will distribute $file as a side-effect when
4296 # it is appropriate (i.e., when $file is not already an output).
4297 # We do not need the result, just the side-effect.
4298 rewrite_inputs_into_dependencies ($link, $file);
4299 }
4300 }
4301 }
4303 # These files get removed by "make distclean".
4304 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4305 @actual_other_files);
4306 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4307 @actual_other_vpath_files);
4308 }
4310 # Handle C headers.
4311 sub handle_headers
4312 {
4313 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4314 'oldinclude', 'pkginclude',
4315 'noinst', 'check');
4316 foreach (@r)
4317 {
4318 next unless $_->[1] =~ /\..*$/;
4319 &saw_extension ($&);
4320 }
4321 }
4323 sub handle_gettext
4324 {
4325 return if ! $seen_gettext || $relative_dir ne '.';
4327 my $subdirs = var 'SUBDIRS';
4329 if (! $subdirs)
4330 {
4331 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4332 return;
4333 }
4335 # Perform some sanity checks to help users get the right setup.
4336 # We disable these tests when po/ doesn't exist in order not to disallow
4337 # unusual gettext setups.
4338 #
4339 # Bruno Haible:
4340 # | The idea is:
4341 # |
4342 # | 1) If a package doesn't have a directory po/ at top level, it
4343 # | will likely have multiple po/ directories in subpackages.
4344 # |
4345 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4346 # | is used without 'external'. It is also useful to warn for the
4347 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4348 # | warnings apply only to the usual layout of packages, therefore
4349 # | they should both be disabled if no po/ directory is found at
4350 # | top level.
4352 if (-d 'po')
4353 {
4354 my @subdirs = $subdirs->value_as_list_recursive;
4356 msg_var ('syntax', $subdirs,
4357 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4358 if ! grep ($_ eq 'po', @subdirs);
4360 # intl/ is not required when AM_GNU_GETTEXT is called with the
4361 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4362 msg_var ('syntax', $subdirs,
4363 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4364 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4365 && ! grep ($_ eq 'intl', @subdirs));
4367 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4368 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4369 msg_var ('syntax', $subdirs,
4370 "'intl' should not be in SUBDIRS when "
4371 . "AM_GNU_GETTEXT([external]) is used")
4372 if ($seen_gettext_external && ! $seen_gettext_intl
4373 && grep ($_ eq 'intl', @subdirs));
4374 }
4376 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4377 }
4379 # Handle footer elements.
4380 sub handle_footer
4381 {
4382 reject_rule ('.SUFFIXES',
4383 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4385 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4386 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4387 # anything else, by sticking it right after the default: target.
4388 $output_header .= ".SUFFIXES:\n";
4389 my $suffixes = var 'SUFFIXES';
4390 my @suffixes = Automake::Rule::suffixes;
4391 if (@suffixes || $suffixes)
4392 {
4393 # Make sure SUFFIXES has unique elements. Sort them to ensure
4394 # the output remains consistent. However, $(SUFFIXES) is
4395 # always at the start of the list, unsorted. This is done
4396 # because make will choose rules depending on the ordering of
4397 # suffixes, and this lets the user have some control. Push
4398 # actual suffixes, and not $(SUFFIXES). Some versions of make
4399 # do not like variable substitutions on the .SUFFIXES line.
4400 my @user_suffixes = ($suffixes
4401 ? $suffixes->value_as_list_recursive : ());
4403 my %suffixes = map { $_ => 1 } @suffixes;
4404 delete @suffixes{@user_suffixes};
4406 $output_header .= (".SUFFIXES: "
4407 . join (' ', @user_suffixes, sort keys %suffixes)
4408 . "\n");
4409 }
4411 $output_trailer .= file_contents ('footer', new Automake::Location);
4412 }
4415 # Generate 'make install' rules.
4416 sub handle_install ()
4417 {
4418 $output_rules .= &file_contents
4419 ('install',
4420 new Automake::Location,
4421 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4422 ? (" \$(BUILT_SOURCES)\n"
4423 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4424 : ''),
4425 'installdirs-local' => (user_phony_rule 'installdirs-local'
4426 ? ' installdirs-local' : ''),
4427 am__installdirs => variable_value ('am__installdirs') || '');
4428 }
4431 # Deal with all and all-am.
4432 sub handle_all ($)
4433 {
4434 my ($makefile) = @_;
4436 # Output 'all-am'.
4438 # Put this at the beginning for the sake of non-GNU makes. This
4439 # is still wrong if these makes can run parallel jobs. But it is
4440 # right enough.
4441 unshift (@all, basename ($makefile));
4443 foreach my $spec (@config_headers)
4444 {
4445 my ($out, @ins) = split_config_file_spec ($spec);
4446 push (@all, basename ($out))
4447 if dirname ($out) eq $relative_dir;
4448 }
4450 # Install 'all' hooks.
4451 push (@all, "all-local")
4452 if user_phony_rule "all-local";
4454 &pretty_print_rule ("all-am:", "\t\t", @all);
4455 &depend ('.PHONY', 'all-am', 'all');
4458 # Output 'all'.
4460 my @local_headers = ();
4461 push @local_headers, '$(BUILT_SOURCES)'
4462 if var ('BUILT_SOURCES');
4463 foreach my $spec (@config_headers)
4464 {
4465 my ($out, @ins) = split_config_file_spec ($spec);
4466 push @local_headers, basename ($out)
4467 if dirname ($out) eq $relative_dir;
4468 }
4470 if (@local_headers)
4471 {
4472 # We need to make sure config.h is built before we recurse.
4473 # We also want to make sure that built sources are built
4474 # before any ordinary 'all' targets are run. We can't do this
4475 # by changing the order of dependencies to the "all" because
4476 # that breaks when using parallel makes. Instead we handle
4477 # things explicitly.
4478 $output_all .= ("all: @local_headers"
4479 . "\n\t"
4480 . '$(MAKE) $(AM_MAKEFLAGS) '
4481 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4482 . "\n\n");
4483 depend ('.MAKE', 'all');
4484 }
4485 else
4486 {
4487 $output_all .= "all: " . (var ('SUBDIRS')
4488 ? 'all-recursive' : 'all-am') . "\n\n";
4489 }
4490 }
4492 # Generate helper targets for user recursion, where needed.
4493 sub handle_user_recursion ()
4494 {
4495 return unless @extra_recursive_targets;
4497 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4498 map { "$_-recursive" } @extra_recursive_targets);
4499 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4500 foreach my $target (@extra_recursive_targets)
4501 {
4502 # This allows the default target's rules to be overridden in
4503 # Makefile.am.
4504 user_phony_rule ($target);
4505 depend ("$target", "$target-$aux");
4506 depend ("$target-am", "$target-local");
4507 # Every user-defined recursive target 'foo' *must* have a valid
4508 # associated 'foo-local' rule; we define it as an empty rule by
4509 # default, so that the user can transparently extend it in his
4510 # own Makefile.am.
4511 pretty_print_rule ("$target-local:");
4512 # $target-recursive might as well be undefined, so do not add
4513 # it here; it's taken care of in subdirs.am anyway.
4514 depend (".PHONY", "$target-am", "$target-local");
4515 }
4516 }
4519 # &do_check_merge_target ()
4520 # -------------------------
4521 # Handle check merge target specially.
4522 sub do_check_merge_target ()
4523 {
4524 # Include user-defined local form of target.
4525 push @check_tests, 'check-local'
4526 if user_phony_rule 'check-local';
4528 # The check target must depend on the local equivalent of
4529 # 'all', to ensure all the primary targets are built. Then it
4530 # must build the local check rules.
4531 $output_rules .= "check-am: all-am\n";
4532 if (@check)
4533 {
4534 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4535 depend ('.MAKE', 'check-am');
4536 }
4538 if (@check_tests)
4539 {
4540 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4541 @check_tests);
4542 depend ('.MAKE', 'check-am');
4543 }
4545 depend '.PHONY', 'check', 'check-am';
4546 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4547 $output_rules .= ("check: "
4548 . (var ('BUILT_SOURCES')
4549 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4550 : '')
4551 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4552 . "\n");
4553 depend ('.MAKE', 'check')
4554 if var ('BUILT_SOURCES');
4555 }
4557 # handle_clean ($MAKEFILE)
4558 # ------------------------
4559 # Handle all 'clean' targets.
4560 sub handle_clean ($)
4561 {
4562 my ($makefile) = @_;
4564 # Clean the files listed in user variables if they exist.
4565 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4566 if var ('MOSTLYCLEANFILES');
4567 $clean_files{'$(CLEANFILES)'} = CLEAN
4568 if var ('CLEANFILES');
4569 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4570 if var ('DISTCLEANFILES');
4571 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4572 if var ('MAINTAINERCLEANFILES');
4574 # Built sources are automatically removed by maintainer-clean.
4575 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4576 if var ('BUILT_SOURCES');
4578 # Compute a list of "rm"s to run for each target.
4579 my %rms = (MOSTLY_CLEAN, [],
4580 CLEAN, [],
4581 DIST_CLEAN, [],
4582 MAINTAINER_CLEAN, []);
4584 foreach my $file (keys %clean_files)
4585 {
4586 my $when = $clean_files{$file};
4587 prog_error 'invalid entry in %clean_files'
4588 unless exists $rms{$when};
4590 my $rm = "rm -f $file";
4591 # If file is a variable, make sure when don't call 'rm -f' without args.
4592 $rm ="test -z \"$file\" || $rm"
4593 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4595 push @{$rms{$when}}, "\t-$rm\n";
4596 }
4598 $output_rules .= &file_contents
4599 ('clean',
4600 new Automake::Location,
4601 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4602 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4603 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4604 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4605 MAKEFILE => basename $makefile,
4606 );
4607 }
4610 # &target_cmp ($A, $B)
4611 # --------------------
4612 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4613 # other '.TARGETS' be last.
4614 sub target_cmp
4615 {
4616 return 0 if $a eq $b;
4618 my $a1 = substr ($a, 0, 1);
4619 my $b1 = substr ($b, 0, 1);
4620 if ($a1 ne $b1)
4621 {
4622 return -1 if $b1 eq '.';
4623 return 1 if $a1 eq '.';
4624 }
4625 return $a cmp $b;
4626 }
4629 # &handle_factored_dependencies ()
4630 # --------------------------------
4631 # Handle everything related to gathered targets.
4632 sub handle_factored_dependencies
4633 {
4634 # Reject bad hooks.
4635 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4636 'uninstall-exec-local', 'uninstall-exec-hook',
4637 'uninstall-dvi-local',
4638 'uninstall-html-local',
4639 'uninstall-info-local',
4640 'uninstall-pdf-local',
4641 'uninstall-ps-local')
4642 {
4643 my $x = $utarg;
4644 $x =~ s/-.*-/-/;
4645 reject_rule ($utarg, "use '$x', not '$utarg'");
4646 }
4648 reject_rule ('install-local',
4649 "use 'install-data-local' or 'install-exec-local', "
4650 . "not 'install-local'");
4652 reject_rule ('install-hook',
4653 "use 'install-data-hook' or 'install-exec-hook', "
4654 . "not 'install-hook'");
4656 # Install the -local hooks.
4657 foreach (keys %dependencies)
4658 {
4659 # Hooks are installed on the -am targets.
4660 s/-am$// or next;
4661 depend ("$_-am", "$_-local")
4662 if user_phony_rule "$_-local";
4663 }
4665 # Install the -hook hooks.
4666 # FIXME: Why not be as liberal as we are with -local hooks?
4667 foreach ('install-exec', 'install-data', 'uninstall')
4668 {
4669 if (user_phony_rule "$_-hook")
4670 {
4671 depend ('.MAKE', "$_-am");
4672 register_action("$_-am",
4673 ("\t\@\$(NORMAL_INSTALL)\n"
4674 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4675 }
4676 }
4678 # All the required targets are phony.
4679 depend ('.PHONY', keys %required_targets);
4681 # Actually output gathered targets.
4682 foreach (sort target_cmp keys %dependencies)
4683 {
4684 # If there is nothing about this guy, skip it.
4685 next
4686 unless (@{$dependencies{$_}}
4687 || $actions{$_}
4688 || $required_targets{$_});
4690 # Define gathered targets in undefined conditions.
4691 # FIXME: Right now we must handle .PHONY as an exception,
4692 # because people write things like
4693 # .PHONY: myphonytarget
4694 # to append dependencies. This would not work if Automake
4695 # refrained from defining its own .PHONY target as it does
4696 # with other overridden targets.
4697 # Likewise for '.MAKE'.
4698 my @undefined_conds = (TRUE,);
4699 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4700 {
4701 @undefined_conds =
4702 Automake::Rule::define ($_, 'internal',
4703 RULE_AUTOMAKE, TRUE, INTERNAL);
4704 }
4705 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4706 foreach my $cond (@undefined_conds)
4707 {
4708 my $condstr = $cond->subst_string;
4709 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4710 $output_rules .= $actions{$_} if defined $actions{$_};
4711 $output_rules .= "\n";
4712 }
4713 }
4714 }
4717 # &handle_tests_dejagnu ()
4718 # ------------------------
4719 sub handle_tests_dejagnu
4720 {
4721 push (@check_tests, 'check-DEJAGNU');
4722 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4723 }
4725 sub handle_per_suffix_test
4726 {
4727 my ($test_suffix, %transform) = @_;
4728 my ($pfx, $generic, $am_exeext);
4729 if ($test_suffix eq '')
4730 {
4731 $pfx = '';
4732 $generic = 0;
4733 $am_exeext = 'FALSE';
4734 }
4735 else
4736 {
4737 prog_error ("test suffix '$test_suffix' lacks leading dot")
4738 unless $test_suffix =~ m/^\.(.*)/;
4739 $pfx = uc ($1) . '_';
4740 $generic = 1;
4741 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4742 : 'FALSE';
4743 }
4744 # The "test driver" program, deputed to handle tests protocol used by
4745 # test scripts. By default, it's assumed that no protocol is used, so
4746 # we fall back to the old behaviour, implemented by the 'test-driver'
4747 # auxiliary script.
4748 if (! var "${pfx}LOG_DRIVER")
4749 {
4750 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4751 define_variable ("${pfx}LOG_DRIVER",
4752 "\$(SHELL) $am_config_aux_dir/test-driver",
4753 INTERNAL);
4754 }
4755 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4756 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4757 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4758 my $compile = "${pfx}LOG_COMPILE";
4759 define_variable ($compile,
4760 '$(' . $pfx . 'LOG_COMPILER)'
4761 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4762 . ' $(' . $pfx . 'LOG_FLAGS)',
4763 INTERNAL);
4764 $output_rules .= file_contents ('check2', new Automake::Location,
4765 GENERIC => $generic,
4766 DRIVER => $driver,
4767 DRIVER_FLAGS => $driver_flags,
4768 COMPILE => '$(' . $compile . ')',
4769 EXT => $test_suffix,
4770 am__EXEEXT => $am_exeext,
4771 %transform);
4772 }
4774 # is_valid_test_extension ($EXT)
4775 # ------------------------------
4776 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4777 # otherwise.
4778 sub is_valid_test_extension ($)
4779 {
4780 my $ext = shift;
4781 return 1
4782 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4783 return 1
4784 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4785 return 0;
4786 }
4788 # Handle TESTS variable and other checks.
4789 sub handle_tests
4790 {
4791 if (option 'dejagnu')
4792 {
4793 &handle_tests_dejagnu;
4794 }
4795 else
4796 {
4797 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4798 {
4799 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4800 . "'AUTOMAKE_OPTIONS'");
4801 }
4802 }
4804 if (var ('TESTS'))
4805 {
4806 push (@check_tests, 'check-TESTS');
4807 my $check_deps = "@check";
4808 $output_rules .= &file_contents ('check', new Automake::Location,
4809 SERIAL_TESTS => !! option 'serial-tests',
4810 CHECK_DEPS => $check_deps);
4812 # Tests that are known programs should have $(EXEEXT) appended.
4813 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4814 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4815 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4816 if (var ('XFAIL_TESTS'));
4818 if (! option 'serial-tests')
4819 {
4820 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4821 my $suff = '.test';
4822 my $at_exeext = '';
4823 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4824 if ($handle_exeext)
4825 {
4826 $at_exeext = subst ('EXEEXT');
4827 $suff = $at_exeext . ' ' . $suff;
4828 }
4829 if (! var 'TEST_EXTENSIONS')
4830 {
4831 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4832 }
4833 my $var = var 'TEST_EXTENSIONS';
4834 # Currently, we are not able to deal with conditional contents
4835 # in TEST_EXTENSIONS.
4836 if ($var->has_conditional_contents)
4837 {
4838 msg_var 'unsupported', $var,
4839 "'TEST_EXTENSIONS' cannot have conditional contents";
4840 }
4841 my @test_suffixes = $var->value_as_list_recursive;
4842 if ((my @invalid_test_suffixes =
4843 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4844 {
4845 error $var->rdef (TRUE)->location,
4846 "invalid test extensions: @invalid_test_suffixes";
4847 }
4848 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4849 if ($handle_exeext)
4850 {
4851 unshift (@test_suffixes, $at_exeext)
4852 unless $test_suffixes[0] eq $at_exeext;
4853 }
4854 unshift (@test_suffixes, '');
4856 transform_variable_recursively
4857 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4858 sub {
4859 my ($subvar, $val, $cond, $full_cond) = @_;
4860 my $obj = $val;
4861 return $obj
4862 if $val =~ /^\@.*\@$/;
4863 $obj =~ s/\$\(EXEEXT\)$//o;
4865 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4866 {
4867 msg ('error', $subvar->rdef ($cond)->location,
4868 "using '$1' in TESTS is currently broken: '$val'");
4869 }
4871 foreach my $test_suffix (@test_suffixes)
4872 {
4873 next
4874 if $test_suffix eq $at_exeext || $test_suffix eq '';
4875 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4876 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4877 }
4878 my $base = $obj;
4879 $obj .= '.log';
4880 handle_per_suffix_test ('',
4881 OBJ => $obj,
4882 BASE => $base,
4883 SOURCE => $val);
4884 return $obj;
4885 });
4887 my $nhelper=1;
4888 my $prev = 'TESTS';
4889 my $post = '';
4890 my $last_suffix = $test_suffixes[$#test_suffixes];
4891 my $cur = '';
4892 foreach my $test_suffix (@test_suffixes)
4893 {
4894 if ($test_suffix eq $last_suffix)
4895 {
4896 $cur = 'TEST_LOGS';
4897 }
4898 else
4899 {
4900 $cur = 'am__test_logs' . $nhelper;
4901 }
4902 define_variable ($cur,
4903 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4904 $post = '.log';
4905 $prev = $cur;
4906 $nhelper++;
4907 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4908 {
4909 handle_per_suffix_test ($test_suffix,
4910 OBJ => '',
4911 BASE => '$*',
4912 SOURCE => '$<');
4913 }
4914 }
4915 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4916 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4917 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
4918 }
4919 }
4920 }
4922 # Handle Emacs Lisp.
4923 sub handle_emacs_lisp
4924 {
4925 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4926 'lisp', 'noinst');
4928 return if ! @elfiles;
4930 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4931 map { $_->[1] } @elfiles);
4932 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4933 '$(am__ELFILES:.el=.elc)');
4934 # This one can be overridden by users.
4935 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4937 push @all, '$(ELCFILES)';
4939 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4940 'EMACS', 'lispdir');
4941 }
4943 # Handle Python
4944 sub handle_python
4945 {
4946 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4947 'noinst');
4948 return if ! @pyfiles;
4950 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4951 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4952 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4953 }
4955 # Handle Java.
4956 sub handle_java
4957 {
4958 my @sourcelist = &am_install_var ('-candist',
4959 'java', 'JAVA',
4960 'noinst', 'check');
4961 return if ! @sourcelist;
4963 my @prefixes = am_primary_prefixes ('JAVA', 1,
4964 'noinst', 'check');
4966 my $dir;
4967 my @java_sources = ();
4968 foreach my $prefix (@prefixes)
4969 {
4970 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
4972 next
4973 if $curs eq 'EXTRA';
4975 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
4977 if (defined $dir)
4978 {
4979 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4980 unless $curs eq $dir;
4981 }
4983 $dir = $curs;
4984 }
4986 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
4987 "@java_sources");
4989 if ($dir eq 'check')
4990 {
4991 push (@check, "class$dir.stamp");
4992 }
4993 else
4994 {
4995 push (@all, "class$dir.stamp");
4996 }
4997 }
5000 # Handle some of the minor options.
5001 sub handle_minor_options
5002 {
5003 if (option 'readme-alpha')
5004 {
5005 if ($relative_dir eq '.')
5006 {
5007 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5008 {
5009 msg ('error-gnits', $package_version_location,
5010 "version '$package_version' doesn't follow " .
5011 "Gnits standards");
5012 }
5013 if (defined $1 && -f 'README-alpha')
5014 {
5015 # This means we have an alpha release. See
5016 # GNITS_VERSION_PATTERN for details.
5017 push_dist_common ('README-alpha');
5018 }
5019 }
5020 }
5021 }
5023 ################################################################
5025 # ($OUTPUT, @INPUTS)
5026 # &split_config_file_spec ($SPEC)
5027 # -------------------------------
5028 # Decode the Autoconf syntax for config files (files, headers, links
5029 # etc.).
5030 sub split_config_file_spec ($)
5031 {
5032 my ($spec) = @_;
5033 my ($output, @inputs) = split (/:/, $spec);
5035 push @inputs, "$output.in"
5036 unless @inputs;
5038 return ($output, @inputs);
5039 }
5041 # $input
5042 # locate_am (@POSSIBLE_SOURCES)
5043 # -----------------------------
5044 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5045 # This functions returns the first *.in file for which a *.am exists.
5046 # It returns undef otherwise.
5047 sub locate_am (@)
5048 {
5049 my (@rest) = @_;
5050 my $input;
5051 foreach my $file (@rest)
5052 {
5053 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5054 {
5055 $input = $file;
5056 last;
5057 }
5058 }
5059 return $input;
5060 }
5062 my %make_list;
5064 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5065 # ---------------------------------------------------
5066 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5067 # (or AC_OUTPUT).
5068 sub scan_autoconf_config_files ($$)
5069 {
5070 my ($where, $config_files) = @_;
5072 # Look at potential Makefile.am's.
5073 foreach (split ' ', $config_files)
5074 {
5075 # Must skip empty string for Perl 4.
5076 next if $_ eq "\\" || $_ eq '';
5078 # Handle $local:$input syntax.
5079 my ($local, @rest) = split (/:/);
5080 @rest = ("$local.in",) unless @rest;
5081 # Keep in sync with 'conffile-leading-dot.test'.
5082 msg ('unsupported', $where,
5083 "omit leading './' from config file names such as '$local';"
5084 . "\nremake rules might be subtly broken otherwise")
5085 if ($local =~ /^\.\//);
5086 my $input = locate_am @rest;
5087 if ($input)
5088 {
5089 # We have a file that automake should generate.
5090 $make_list{$input} = join (':', ($local, @rest));
5091 }
5092 else
5093 {
5094 # We have a file that automake should cause to be
5095 # rebuilt, but shouldn't generate itself.
5096 push (@other_input_files, $_);
5097 }
5098 $ac_config_files_location{$local} = $where;
5099 $ac_config_files_condition{$local} =
5100 new Automake::Condition (@cond_stack)
5101 if (@cond_stack);
5102 }
5103 }
5106 # &scan_autoconf_traces ($FILENAME)
5107 # ---------------------------------
5108 sub scan_autoconf_traces ($)
5109 {
5110 my ($filename) = @_;
5112 # Macros to trace, with their minimal number of arguments.
5113 #
5114 # IMPORTANT: If you add a macro here, you should also add this macro
5115 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5116 my %traced = (
5117 AC_CANONICAL_BUILD => 0,
5118 AC_CANONICAL_HOST => 0,
5119 AC_CANONICAL_TARGET => 0,
5120 AC_CONFIG_AUX_DIR => 1,
5121 AC_CONFIG_FILES => 1,
5122 AC_CONFIG_HEADERS => 1,
5123 AC_CONFIG_LIBOBJ_DIR => 1,
5124 AC_CONFIG_LINKS => 1,
5125 AC_FC_SRCEXT => 1,
5126 AC_INIT => 0,
5127 AC_LIBSOURCE => 1,
5128 AC_REQUIRE_AUX_FILE => 1,
5129 AC_SUBST_TRACE => 1,
5130 AM_AUTOMAKE_VERSION => 1,
5131 AM_PROG_MKDIR_P => 0, # FIXME: to be removed in 1.14
5132 AM_CONDITIONAL => 2,
5133 _AM_EXTRA_RECURSIVE_TARGETS => 1,
5134 AM_GNU_GETTEXT => 0,
5135 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5136 AM_INIT_AUTOMAKE => 0,
5137 AM_MAINTAINER_MODE => 0,
5138 AM_PROG_AR => 0,
5139 AM_PROG_CC_C_O => 0,
5140 _AM_SUBST_NOTMAKE => 1,
5141 _AM_COND_IF => 1,
5142 _AM_COND_ELSE => 1,
5143 _AM_COND_ENDIF => 1,
5144 LT_SUPPORTED_TAG => 1,
5145 _LT_AC_TAGCONFIG => 0,
5146 m4_include => 1,
5147 m4_sinclude => 1,
5148 sinclude => 1,
5149 );
5151 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5153 # Use a separator unlikely to be used, not ':', the default, which
5154 # has a precise meaning for AC_CONFIG_FILES and so on.
5155 $traces .= join (' ',
5156 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5157 (keys %traced));
5159 my $tracefh = new Automake::XFile ("$traces $filename |");
5160 verb "reading $traces";
5162 @cond_stack = ();
5163 my $where;
5165 while ($_ = $tracefh->getline)
5166 {
5167 chomp;
5168 my ($here, $depth, @args) = split (/::/);
5169 $where = new Automake::Location $here;
5170 my $macro = $args[0];
5172 prog_error ("unrequested trace '$macro'")
5173 unless exists $traced{$macro};
5175 # Skip and diagnose malformed calls.
5176 if ($#args < $traced{$macro})
5177 {
5178 msg ('syntax', $where, "not enough arguments for $macro");
5179 next;
5180 }
5182 # Alphabetical ordering please.
5183 if ($macro eq 'AC_CANONICAL_BUILD')
5184 {
5185 if ($seen_canonical <= AC_CANONICAL_BUILD)
5186 {
5187 $seen_canonical = AC_CANONICAL_BUILD;
5188 }
5189 }
5190 elsif ($macro eq 'AC_CANONICAL_HOST')
5191 {
5192 if ($seen_canonical <= AC_CANONICAL_HOST)
5193 {
5194 $seen_canonical = AC_CANONICAL_HOST;
5195 }
5196 }
5197 elsif ($macro eq 'AC_CANONICAL_TARGET')
5198 {
5199 $seen_canonical = AC_CANONICAL_TARGET;
5200 }
5201 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5202 {
5203 if ($seen_init_automake)
5204 {
5205 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5206 . "AM_INIT_AUTOMAKE ...", partial => 1);
5207 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5208 }
5209 $config_aux_dir = $args[1];
5210 $config_aux_dir_set_in_configure_ac = 1;
5211 check_directory ($config_aux_dir, $where);
5212 }
5213 elsif ($macro eq 'AC_CONFIG_FILES')
5214 {
5215 # Look at potential Makefile.am's.
5216 scan_autoconf_config_files ($where, $args[1]);
5217 }
5218 elsif ($macro eq 'AC_CONFIG_HEADERS')
5219 {
5220 foreach my $spec (split (' ', $args[1]))
5221 {
5222 my ($dest, @src) = split (':', $spec);
5223 $ac_config_files_location{$dest} = $where;
5224 push @config_headers, $spec;
5225 }
5226 }
5227 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5228 {
5229 $config_libobj_dir = $args[1];
5230 check_directory ($config_libobj_dir, $where);
5231 }
5232 elsif ($macro eq 'AC_CONFIG_LINKS')
5233 {
5234 foreach my $spec (split (' ', $args[1]))
5235 {
5236 my ($dest, $src) = split (':', $spec);
5237 $ac_config_files_location{$dest} = $where;
5238 push @config_links, $spec;
5239 }
5240 }
5241 elsif ($macro eq 'AC_FC_SRCEXT')
5242 {
5243 my $suffix = $args[1];
5244 # These flags are used as %SOURCEFLAG% in depend2.am,
5245 # where the trailing space is important.
5246 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5247 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5248 }
5249 elsif ($macro eq 'AC_INIT')
5250 {
5251 if (defined $args[2])
5252 {
5253 $package_version = $args[2];
5254 $package_version_location = $where;
5255 }
5256 }
5257 elsif ($macro eq 'AC_LIBSOURCE')
5258 {
5259 $libsources{$args[1]} = $here;
5260 }
5261 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5262 {
5263 # Only remember the first time a file is required.
5264 $required_aux_file{$args[1]} = $where
5265 unless exists $required_aux_file{$args[1]};
5266 }
5267 elsif ($macro eq 'AC_SUBST_TRACE')
5268 {
5269 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5270 # AC_SUBST(5), then too bad.
5271 $configure_vars{$args[1]} = $where
5272 if $args[1] =~ /^\w+$/;
5273 }
5274 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5275 {
5276 error ($where,
5277 "version mismatch. This is Automake $VERSION,\n" .
5278 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5279 "comes from Automake $args[1]. You should recreate\n" .
5280 "aclocal.m4 with aclocal and run automake again.\n",
5281 # $? = 63 is used to indicate version mismatch to missing.
5282 exit_code => 63)
5283 if $VERSION ne $args[1];
5285 $seen_automake_version = 1;
5286 }
5287 elsif ($macro eq 'AM_PROG_MKDIR_P') # FIXME: to be removed in 1.14
5288 {
5289 msg 'obsolete', $where, <<'EOF';
5290 The 'AM_PROG_MKDIR_P' macro is deprecated, and will soon be removed.
5291 You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
5292 and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
5293 EOF
5294 }
5295 elsif ($macro eq 'AM_CONDITIONAL')
5296 {
5297 $configure_cond{$args[1]} = $where;
5298 }
5299 elsif ($macro eq '_AM_EXTRA_RECURSIVE_TARGETS')
5300 {
5301 push @extra_recursive_targets, split (' ', $args[1]);
5302 }
5303 elsif ($macro eq 'AM_GNU_GETTEXT')
5304 {
5305 $seen_gettext = $where;
5306 $ac_gettext_location = $where;
5307 $seen_gettext_external = grep ($_ eq 'external', @args);
5308 }
5309 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5310 {
5311 $seen_gettext_intl = $where;
5312 }
5313 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5314 {
5315 $seen_init_automake = $where;
5316 if (defined $args[2])
5317 {
5318 msg 'obsolete', $where, <<'EOF';
5319 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5320 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_INIT_AUTOMAKE-invocation
5321 EOF
5322 $package_version = $args[2];
5323 $package_version_location = $where;
5324 }
5325 elsif (defined $args[1])
5326 {
5327 my @opts = split (' ', $args[1]);
5328 @opts = map { { option => $_, where => $where } } @opts;
5329 exit $exit_code if process_global_option_list (@opts);
5330 }
5331 }
5332 elsif ($macro eq 'AM_MAINTAINER_MODE')
5333 {
5334 $seen_maint_mode = $where;
5335 }
5336 elsif ($macro eq 'AM_PROG_AR')
5337 {
5338 $seen_ar = $where;
5339 }
5340 elsif ($macro eq 'AM_PROG_CC_C_O')
5341 {
5342 $seen_cc_c_o = $where;
5343 }
5344 elsif ($macro eq '_AM_COND_IF')
5345 {
5346 cond_stack_if ('', $args[1], $where);
5347 error ($where, "missing m4 quoting, macro depth $depth")
5348 if ($depth != 1);
5349 }
5350 elsif ($macro eq '_AM_COND_ELSE')
5351 {
5352 cond_stack_else ('!', $args[1], $where);
5353 error ($where, "missing m4 quoting, macro depth $depth")
5354 if ($depth != 1);
5355 }
5356 elsif ($macro eq '_AM_COND_ENDIF')
5357 {
5358 cond_stack_endif (undef, undef, $where);
5359 error ($where, "missing m4 quoting, macro depth $depth")
5360 if ($depth != 1);
5361 }
5362 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5363 {
5364 $ignored_configure_vars{$args[1]} = $where;
5365 }
5366 elsif ($macro eq 'm4_include'
5367 || $macro eq 'm4_sinclude'
5368 || $macro eq 'sinclude')
5369 {
5370 # Skip missing 'sinclude'd files.
5371 next if $macro ne 'm4_include' && ! -f $args[1];
5373 # Some modified versions of Autoconf don't use
5374 # frozen files. Consequently it's possible that we see all
5375 # m4_include's performed during Autoconf's startup.
5376 # Obviously we don't want to distribute Autoconf's files
5377 # so we skip absolute filenames here.
5378 push @configure_deps, '$(top_srcdir)/' . $args[1]
5379 unless $here =~ m,^(?:\w:)?[\\/],;
5380 # Keep track of the greatest timestamp.
5381 if (-e $args[1])
5382 {
5383 my $mtime = mtime $args[1];
5384 $configure_deps_greatest_timestamp = $mtime
5385 if $mtime > $configure_deps_greatest_timestamp;
5386 }
5387 }
5388 elsif ($macro eq 'LT_SUPPORTED_TAG')
5389 {
5390 $libtool_tags{$args[1]} = 1;
5391 $libtool_new_api = 1;
5392 }
5393 elsif ($macro eq '_LT_AC_TAGCONFIG')
5394 {
5395 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5396 # We use it to detect whether tags are supported. Our
5397 # preferred interface is LT_SUPPORTED_TAG, but it was
5398 # introduced in Libtool 1.6.
5399 if (0 == keys %libtool_tags)
5400 {
5401 # Hardcode the tags supported by Libtool 1.5.
5402 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5403 }
5404 }
5405 }
5407 error ($where, "condition stack not properly closed")
5408 if (@cond_stack);
5410 $tracefh->close;
5411 }
5414 # &scan_autoconf_files ()
5415 # -----------------------
5416 # Check whether we use 'configure.ac' or 'configure.in'.
5417 # Scan it (and possibly 'aclocal.m4') for interesting things.
5418 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5419 sub scan_autoconf_files ()
5420 {
5421 # Reinitialize libsources here. This isn't really necessary,
5422 # since we currently assume there is only one configure.ac. But
5423 # that won't always be the case.
5424 %libsources = ();
5426 # Keep track of the youngest configure dependency.
5427 $configure_deps_greatest_timestamp = mtime $configure_ac;
5428 if (-e 'aclocal.m4')
5429 {
5430 my $mtime = mtime 'aclocal.m4';
5431 $configure_deps_greatest_timestamp = $mtime
5432 if $mtime > $configure_deps_greatest_timestamp;
5433 }
5435 scan_autoconf_traces ($configure_ac);
5437 @configure_input_files = sort keys %make_list;
5438 # Set input and output files if not specified by user.
5439 if (! @input_files)
5440 {
5441 @input_files = @configure_input_files;
5442 %output_files = %make_list;
5443 }
5446 if (! $seen_init_automake)
5447 {
5448 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5449 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5450 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5451 . "and that aclocal.m4 was recently regenerated "
5452 . "(using aclocal)");
5453 }
5454 else
5455 {
5456 if (! $seen_automake_version)
5457 {
5458 if (-f 'aclocal.m4')
5459 {
5460 error ($seen_init_automake,
5461 "your implementation of AM_INIT_AUTOMAKE comes from " .
5462 "an\nold Automake version. You should recreate " .
5463 "aclocal.m4\nwith aclocal and run automake again",
5464 # $? = 63 is used to indicate version mismatch to missing.
5465 exit_code => 63);
5466 }
5467 else
5468 {
5469 error ($seen_init_automake,
5470 "no proper implementation of AM_INIT_AUTOMAKE was " .
5471 "found,\nprobably because aclocal.m4 is missing.\n" .
5472 "You should run aclocal to create this file, then\n" .
5473 "run automake again");
5474 }
5475 }
5476 }
5478 locate_aux_dir ();
5480 # Look for some files we need. Always check for these. This
5481 # check must be done for every run, even those where we are only
5482 # looking at a subdir Makefile. We must set relative_dir for
5483 # push_required_file to work.
5484 # Sort the files for stable verbose output.
5485 $relative_dir = '.';
5486 foreach my $file (sort keys %required_aux_file)
5487 {
5488 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5489 }
5490 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5491 if -f $config_aux_dir . '/install.sh';
5493 # Preserve dist_common for later.
5494 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5496 }
5498 ################################################################
5500 # Do any extra checking for GNU standards.
5501 sub check_gnu_standards
5502 {
5503 if ($relative_dir eq '.')
5504 {
5505 # In top level (or only) directory.
5506 require_file ("$am_file.am", GNU,
5507 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5509 # Accept one of these three licenses; default to COPYING.
5510 # Make sure we do not overwrite an existing license.
5511 my $license;
5512 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5513 {
5514 if (-f $_)
5515 {
5516 $license = $_;
5517 last;
5518 }
5519 }
5520 require_file ("$am_file.am", GNU, 'COPYING')
5521 unless $license;
5522 }
5524 for my $opt ('no-installman', 'no-installinfo')
5525 {
5526 msg ('error-gnu', option $opt,
5527 "option '$opt' disallowed by GNU standards")
5528 if option $opt;
5529 }
5530 }
5532 # Do any extra checking for GNITS standards.
5533 sub check_gnits_standards
5534 {
5535 if ($relative_dir eq '.')
5536 {
5537 # In top level (or only) directory.
5538 require_file ("$am_file.am", GNITS, 'THANKS');
5539 }
5540 }
5542 ################################################################
5543 #
5544 # Functions to handle files of each language.
5546 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5547 # simple formula: Return value is LANG_SUBDIR if the resulting object
5548 # file should be in a subdir if the source file is, LANG_PROCESS if
5549 # file is to be dealt with, LANG_IGNORE otherwise.
5551 # Much of the actual processing is handled in
5552 # handle_single_transform. These functions exist so that
5553 # auxiliary information can be recorded for a later cleanup pass.
5554 # Note that the calls to these functions are computed, so don't bother
5555 # searching for their precise names in the source.
5557 # This is just a convenience function that can be used to determine
5558 # when a subdir object should be used.
5559 sub lang_sub_obj
5560 {
5561 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5562 }
5564 # Rewrite a single C source file.
5565 sub lang_c_rewrite
5566 {
5567 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5569 my $r = LANG_PROCESS;
5570 if (option 'subdir-objects')
5571 {
5572 $r = LANG_SUBDIR;
5573 if ($directory && $directory ne '.')
5574 {
5575 $base = $directory . '/' . $base;
5577 # libtool is always able to put the object at the proper place,
5578 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5579 msg_var ('portability', $var,
5580 "compiling '$base.c' in subdir requires "
5581 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5582 uniq_scope => US_GLOBAL,
5583 uniq_part => 'AM_PROG_CC_C_O subdir')
5584 unless $seen_cc_c_o || $obj eq '.lo';
5585 }
5586 }
5588 if (! $seen_cc_c_o
5589 && $have_per_exec_flags
5590 && ! option 'subdir-objects'
5591 && $obj ne '.lo')
5592 {
5593 msg_var ('portability',
5594 $var, "compiling '$base.c' with per-target flags requires "
5595 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5596 uniq_scope => US_GLOBAL,
5597 uniq_part => 'AM_PROG_CC_C_O per-target')
5598 }
5600 return $r;
5601 }
5603 # Rewrite a single header file.
5604 sub lang_header_rewrite
5605 {
5606 # Header files are simply ignored.
5607 return LANG_IGNORE;
5608 }
5610 # Rewrite a single Vala source file.
5611 sub lang_vala_rewrite
5612 {
5613 my ($directory, $base, $ext) = @_;
5615 (my $newext = $ext) =~ s/vala$/c/;
5616 return (LANG_SUBDIR, $newext);
5617 }
5619 # Rewrite a single yacc/yacc++ file.
5620 sub lang_yacc_rewrite
5621 {
5622 my ($directory, $base, $ext) = @_;
5624 my $r = &lang_sub_obj;
5625 (my $newext = $ext) =~ tr/y/c/;
5626 return ($r, $newext);
5627 }
5628 sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
5630 # Rewrite a single lex/lex++ file.
5631 sub lang_lex_rewrite
5632 {
5633 my ($directory, $base, $ext) = @_;
5635 my $r = &lang_sub_obj;
5636 (my $newext = $ext) =~ tr/l/c/;
5637 return ($r, $newext);
5638 }
5639 sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
5641 # Rewrite a single Java file.
5642 sub lang_java_rewrite
5643 {
5644 return LANG_SUBDIR;
5645 }
5647 # The lang_X_finish functions are called after all source file
5648 # processing is done. Each should handle defining rules for the
5649 # language, etc. A finish function is only called if a source file of
5650 # the appropriate type has been seen.
5652 sub lang_vala_finish_target ($$)
5653 {
5654 my ($self, $name) = @_;
5656 my $derived = canonicalize ($name);
5657 my $var = var "${derived}_SOURCES";
5658 return unless $var;
5660 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5662 # For automake bug#11229.
5663 return unless @vala_sources;
5665 foreach my $vala_file (@vala_sources)
5666 {
5667 my $c_file = $vala_file;
5668 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5669 {
5670 $c_file = "\$(srcdir)/$c_file";
5671 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5672 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5673 . "\t\@if test -f \$@; then :; else \\\n"
5674 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5675 . "\tfi\n";
5676 $clean_files{$c_file} = MAINTAINER_CLEAN;
5677 }
5678 }
5680 # Add rebuild rules for generated header and vapi files
5681 my $flags = var ($derived . '_VALAFLAGS');
5682 if ($flags)
5683 {
5684 my $lastflag = '';
5685 foreach my $flag ($flags->value_as_list_recursive)
5686 {
5687 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5688 '--vapi', '--internal-vapi', '--gir')))
5689 {
5690 my $headerfile = "\$(srcdir)/$flag";
5691 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5692 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5693 . "\t\@if test -f \$@; then :; else \\\n"
5694 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5695 . "\tfi\n";
5697 # valac is not used when building from dist tarballs
5698 # distribute the generated files
5699 push_dist_common ($headerfile);
5700 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5701 }
5702 $lastflag = $flag;
5703 }
5704 }
5706 my $compile = $self->compile;
5708 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5709 # rule into '${derived}_VALAFLAGS' if it exists.
5710 my $val = "${derived}_VALAFLAGS";
5711 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5712 if set_seen ($val);
5714 # VALAFLAGS is a user variable (per GNU Standards),
5715 # it should not be overridden in the Makefile...
5716 check_user_variables 'VALAFLAGS';
5718 my $dirname = dirname ($name);
5720 # Only generate C code, do not run C compiler
5721 $compile .= " -C";
5723 my $verbose = verbose_flag ('VALAC');
5724 my $silent = silent_flag ();
5725 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5727 $output_rules .=
5728 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5729 # Since the C files generated from the vala sources depend on the
5730 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5731 # those of the C files generated by the valac invocation below (this is
5732 # especially important on systems with sub-second timestamp resolution).
5733 # Thus we need to create the stamp file *before* invoking valac, and to
5734 # move it to its final location only after valac has been invoked.
5735 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5736 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5737 "\t${silent}mv -f \$\@-t \$\@\n";
5739 push_dist_common ($stampfile);
5741 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5742 }
5744 # Add output rules to invoke valac and create stamp file as a witness
5745 # to handle multiple outputs. This function is called after all source
5746 # file processing is done.
5747 sub lang_vala_finish
5748 {
5749 my ($self) = @_;
5751 foreach my $prog (keys %known_programs)
5752 {
5753 lang_vala_finish_target ($self, $prog);
5754 }
5756 while (my ($name) = each %known_libraries)
5757 {
5758 lang_vala_finish_target ($self, $name);
5759 }
5760 }
5762 # The built .c files should be cleaned only on maintainer-clean
5763 # as the .c files are distributed. This function is called for each
5764 # .vala source file.
5765 sub lang_vala_target_hook
5766 {
5767 my ($self, $aggregate, $output, $input, %transform) = @_;
5769 $clean_files{$output} = MAINTAINER_CLEAN;
5770 }
5772 # This is a yacc helper which is called whenever we have decided to
5773 # compile a yacc file.
5774 sub lang_yacc_target_hook
5775 {
5776 my ($self, $aggregate, $output, $input, %transform) = @_;
5778 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5779 # have to to generate special code.
5780 my $yflags_contains_minus_d = 0;
5782 foreach my $pfx ("", "${aggregate}_")
5783 {
5784 my $yflagsvar = var ("${pfx}YFLAGS");
5785 next unless $yflagsvar;
5786 # We cannot work reliably with conditionally-defined YFLAGS.
5787 if ($yflagsvar->has_conditional_contents)
5788 {
5789 msg_var ('unsupported', $yflagsvar,
5790 "'${pfx}YFLAGS' cannot have conditional contents");
5791 }
5792 else
5793 {
5794 $yflags_contains_minus_d = 1
5795 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5796 }
5797 }
5799 if ($yflags_contains_minus_d)
5800 {
5801 # Found a '-d' that applies to the compilation of this file.
5802 # Add a dependency for the generated header file, and arrange
5803 # for that file to be included in the distribution.
5805 # The extension of the output file (e.g., '.c' or '.cxx').
5806 # We'll need it to compute the name of the generated header file.
5807 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5809 # We know that a yacc input should be turned into either a C or
5810 # C++ output file. We depend on this fact (here and in yacc.am),
5811 # so check that it really holds.
5812 my $lang = $languages{$extension_map{$output_ext}};
5813 prog_error "invalid output name '$output' for yacc file '$input'"
5814 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5816 (my $header_ext = $output_ext) =~ s/c/h/g;
5817 # Quote $output_ext in the regexp, so that dots in it are taken
5818 # as literal dots, not as metacharacters.
5819 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5821 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5822 RULE_AUTOMAKE, TRUE,
5823 INTERNAL))
5824 {
5825 my $condstr = $cond->subst_string;
5826 $output_rules .=
5827 "$condstr${header}: $output\n"
5828 # Recover from removal of $header
5829 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5830 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5831 }
5832 # Distribute the generated file, unless its .y source was
5833 # listed in a nodist_ variable. (&handle_source_transform
5834 # will set DIST_SOURCE.)
5835 &push_dist_common ($header)
5836 if $transform{'DIST_SOURCE'};
5838 # The GNU rules say that yacc/lex output files should be removed
5839 # by maintainer-clean. However, if the files are not distributed,
5840 # then we want to remove them with "make clean"; otherwise,
5841 # "make distcheck" will fail.
5842 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5843 }
5844 # See the comment above for $HEADER.
5845 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5846 }
5848 # This is a lex helper which is called whenever we have decided to
5849 # compile a lex file.
5850 sub lang_lex_target_hook
5851 {
5852 my ($self, $aggregate, $output, $input, %transform) = @_;
5853 # The GNU rules say that yacc/lex output files should be removed
5854 # by maintainer-clean. However, if the files are not distributed,
5855 # then we want to remove them with "make clean"; otherwise,
5856 # "make distcheck" will fail.
5857 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5858 }
5860 # This is a helper for both lex and yacc.
5861 sub yacc_lex_finish_helper
5862 {
5863 return if defined $language_scratch{'lex-yacc-done'};
5864 $language_scratch{'lex-yacc-done'} = 1;
5866 # FIXME: for now, no line number.
5867 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5868 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5869 }
5871 sub lang_yacc_finish
5872 {
5873 return if defined $language_scratch{'yacc-done'};
5874 $language_scratch{'yacc-done'} = 1;
5876 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5878 yacc_lex_finish_helper;
5879 }
5882 sub lang_lex_finish
5883 {
5884 return if defined $language_scratch{'lex-done'};
5885 $language_scratch{'lex-done'} = 1;
5887 yacc_lex_finish_helper;
5888 }
5891 # Given a hash table of linker names, pick the name that has the most
5892 # precedence. This is lame, but something has to have global
5893 # knowledge in order to eliminate the conflict. Add more linkers as
5894 # required.
5895 sub resolve_linker
5896 {
5897 my (%linkers) = @_;
5899 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5900 {
5901 return $l if defined $linkers{$l};
5902 }
5903 return 'LINK';
5904 }
5906 # Called to indicate that an extension was used.
5907 sub saw_extension
5908 {
5909 my ($ext) = @_;
5910 $extension_seen{$ext} = 1;
5911 }
5913 # register_language (%ATTRIBUTE)
5914 # ------------------------------
5915 # Register a single language.
5916 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5917 sub register_language (%)
5918 {
5919 my (%option) = @_;
5921 # Set the defaults.
5922 $option{'autodep'} = 'no'
5923 unless defined $option{'autodep'};
5924 $option{'linker'} = ''
5925 unless defined $option{'linker'};
5926 $option{'flags'} = []
5927 unless defined $option{'flags'};
5928 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5929 unless defined $option{'output_extensions'};
5930 $option{'nodist_specific'} = 0
5931 unless defined $option{'nodist_specific'};
5933 my $lang = new Language (%option);
5935 # Fill indexes.
5936 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5937 $languages{$lang->name} = $lang;
5938 my $link = $lang->linker;
5939 if ($link)
5940 {
5941 if (exists $link_languages{$link})
5942 {
5943 prog_error ("'$link' has different definitions in "
5944 . $lang->name . " and " . $link_languages{$link}->name)
5945 if $lang->link ne $link_languages{$link}->link;
5946 }
5947 else
5948 {
5949 $link_languages{$link} = $lang;
5950 }
5951 }
5953 # Update the pattern of known extensions.
5954 accept_extensions (@{$lang->extensions});
5956 # Upate the $suffix_rule map.
5957 foreach my $suffix (@{$lang->extensions})
5958 {
5959 foreach my $dest (&{$lang->output_extensions} ($suffix))
5960 {
5961 register_suffix_rule (INTERNAL, $suffix, $dest);
5962 }
5963 }
5964 }
5966 # derive_suffix ($EXT, $OBJ)
5967 # --------------------------
5968 # This function is used to find a path from a user-specified suffix $EXT
5969 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
5970 sub derive_suffix ($$)
5971 {
5972 my ($source_ext, $obj) = @_;
5974 while (! $extension_map{$source_ext}
5975 && $source_ext ne $obj
5976 && exists $suffix_rules->{$source_ext}
5977 && exists $suffix_rules->{$source_ext}{$obj})
5978 {
5979 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5980 }
5982 return $source_ext;
5983 }
5986 ################################################################
5988 # Pretty-print something and append to output_rules.
5989 sub pretty_print_rule
5990 {
5991 $output_rules .= &makefile_wrap (@_);
5992 }
5995 ################################################################
5998 ## -------------------------------- ##
5999 ## Handling the conditional stack. ##
6000 ## -------------------------------- ##
6003 # $STRING
6004 # make_conditional_string ($NEGATE, $COND)
6005 # ----------------------------------------
6006 sub make_conditional_string ($$)
6007 {
6008 my ($negate, $cond) = @_;
6009 $cond = "${cond}_TRUE"
6010 unless $cond =~ /^TRUE|FALSE$/;
6011 $cond = Automake::Condition::conditional_negate ($cond)
6012 if $negate;
6013 return $cond;
6014 }
6017 my %_am_macro_for_cond =
6018 (
6019 AMDEP => "one of the compiler tests\n"
6020 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6021 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6022 am__fastdepCC => 'AC_PROG_CC',
6023 am__fastdepCCAS => 'AM_PROG_AS',
6024 am__fastdepCXX => 'AC_PROG_CXX',
6025 am__fastdepGCJ => 'AM_PROG_GCJ',
6026 am__fastdepOBJC => 'AC_PROG_OBJC',
6027 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6028 am__fastdepUPC => 'AM_PROG_UPC'
6029 );
6031 # $COND
6032 # cond_stack_if ($NEGATE, $COND, $WHERE)
6033 # --------------------------------------
6034 sub cond_stack_if ($$$)
6035 {
6036 my ($negate, $cond, $where) = @_;
6038 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6039 {
6040 my $text = "$cond does not appear in AM_CONDITIONAL";
6041 my $scope = US_LOCAL;
6042 if (exists $_am_macro_for_cond{$cond})
6043 {
6044 my $mac = $_am_macro_for_cond{$cond};
6045 $text .= "\n The usual way to define '$cond' is to add ";
6046 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6047 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6048 # These warnings appear in Automake files (depend2.am),
6049 # so there is no need to display them more than once:
6050 $scope = US_GLOBAL;
6051 }
6052 error $where, $text, uniq_scope => $scope;
6053 }
6055 push (@cond_stack, make_conditional_string ($negate, $cond));
6057 return new Automake::Condition (@cond_stack);
6058 }
6061 # $COND
6062 # cond_stack_else ($NEGATE, $COND, $WHERE)
6063 # ----------------------------------------
6064 sub cond_stack_else ($$$)
6065 {
6066 my ($negate, $cond, $where) = @_;
6068 if (! @cond_stack)
6069 {
6070 error $where, "else without if";
6071 return FALSE;
6072 }
6074 $cond_stack[$#cond_stack] =
6075 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6077 # If $COND is given, check against it.
6078 if (defined $cond)
6079 {
6080 $cond = make_conditional_string ($negate, $cond);
6082 error ($where, "else reminder ($negate$cond) incompatible with "
6083 . "current conditional: $cond_stack[$#cond_stack]")
6084 if $cond_stack[$#cond_stack] ne $cond;
6085 }
6087 return new Automake::Condition (@cond_stack);
6088 }
6091 # $COND
6092 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6093 # -----------------------------------------
6094 sub cond_stack_endif ($$$)
6095 {
6096 my ($negate, $cond, $where) = @_;
6097 my $old_cond;
6099 if (! @cond_stack)
6100 {
6101 error $where, "endif without if";
6102 return TRUE;
6103 }
6105 # If $COND is given, check against it.
6106 if (defined $cond)
6107 {
6108 $cond = make_conditional_string ($negate, $cond);
6110 error ($where, "endif reminder ($negate$cond) incompatible with "
6111 . "current conditional: $cond_stack[$#cond_stack]")
6112 if $cond_stack[$#cond_stack] ne $cond;
6113 }
6115 pop @cond_stack;
6117 return new Automake::Condition (@cond_stack);
6118 }
6124 ## ------------------------ ##
6125 ## Handling the variables. ##
6126 ## ------------------------ ##
6129 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6130 # -----------------------------------------------------
6131 # Like define_variable, but the value is a list, and the variable may
6132 # be defined conditionally. The second argument is the condition
6133 # under which the value should be defined; this should be the empty
6134 # string to define the variable unconditionally. The third argument
6135 # is a list holding the values to use for the variable. The value is
6136 # pretty printed in the output file.
6137 sub define_pretty_variable ($$$@)
6138 {
6139 my ($var, $cond, $where, @value) = @_;
6141 if (! vardef ($var, $cond))
6142 {
6143 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6144 '', $where, VAR_PRETTY);
6145 rvar ($var)->rdef ($cond)->set_seen;
6146 }
6147 }
6150 # define_variable ($VAR, $VALUE, $WHERE)
6151 # --------------------------------------
6152 # Define a new Automake Makefile variable VAR to VALUE, but only if
6153 # not already defined.
6154 sub define_variable ($$$)
6155 {
6156 my ($var, $value, $where) = @_;
6157 define_pretty_variable ($var, TRUE, $where, $value);
6158 }
6161 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6162 # ------------------------------------------------------------
6163 # Define the $VAR which content is the list of file names composed of
6164 # a @BASENAME and the $EXTENSION.
6165 sub define_files_variable ($\@$$)
6166 {
6167 my ($var, $basename, $extension, $where) = @_;
6168 define_variable ($var,
6169 join (' ', map { "$_.$extension" } @$basename),
6170 $where);
6171 }
6174 # Like define_variable, but define a variable to be the configure
6175 # substitution by the same name.
6176 sub define_configure_variable ($)
6177 {
6178 my ($var) = @_;
6179 # Some variables we do not want to output. For instance it
6180 # would be a bad idea to output `U = @U@` when `@U@` can be
6181 # substituted as `\`.
6182 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6183 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6184 '', $configure_vars{$var}, $pretty);
6185 }
6188 # define_compiler_variable ($LANG)
6189 # --------------------------------
6190 # Define a compiler variable. We also handle defining the 'LT'
6191 # version of the command when using libtool.
6192 sub define_compiler_variable ($)
6193 {
6194 my ($lang) = @_;
6196 my ($var, $value) = ($lang->compiler, $lang->compile);
6197 my $libtool_tag = '';
6198 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6199 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6200 &define_variable ($var, $value, INTERNAL);
6201 if (var ('LIBTOOL'))
6202 {
6203 my $verbose = define_verbose_libtool ();
6204 &define_variable ("LT$var",
6205 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6206 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6207 INTERNAL);
6208 }
6209 define_verbose_tagvar ($lang->ccer || 'GEN');
6210 }
6213 # define_linker_variable ($LANG)
6214 # ------------------------------
6215 # Define linker variables.
6216 sub define_linker_variable ($)
6217 {
6218 my ($lang) = @_;
6220 my $libtool_tag = '';
6221 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6222 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6223 # CCLD = $(CC).
6224 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6225 # CCLINK = $(CCLD) blah blah...
6226 my $link = '';
6227 if (var ('LIBTOOL'))
6228 {
6229 my $verbose = define_verbose_libtool ();
6230 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6231 . "\$(LIBTOOLFLAGS) --mode=link ";
6232 }
6233 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6234 &define_variable ($lang->compiler, $lang);
6235 &define_verbose_tagvar ($lang->lder || 'GEN');
6236 }
6238 sub define_per_target_linker_variable ($$)
6239 {
6240 my ($linker, $target) = @_;
6242 # If the user wrote a custom link command, we don't define ours.
6243 return "${target}_LINK"
6244 if set_seen "${target}_LINK";
6246 my $xlink = $linker ? $linker : 'LINK';
6248 my $lang = $link_languages{$xlink};
6249 prog_error "Unknown language for linker variable '$xlink'"
6250 unless $lang;
6252 my $link_command = $lang->link;
6253 if (var 'LIBTOOL')
6254 {
6255 my $libtool_tag = '';
6256 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6257 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6259 my $verbose = define_verbose_libtool ();
6260 $link_command =
6261 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6262 . "--mode=link " . $link_command;
6263 }
6265 # Rewrite each occurrence of 'AM_$flag' in the link
6266 # command into '${derived}_$flag' if it exists.
6267 my $orig_command = $link_command;
6268 my @flags = (@{$lang->flags}, 'LDFLAGS');
6269 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6270 for my $flag (@flags)
6271 {
6272 my $val = "${target}_$flag";
6273 $link_command =~ s/\(AM_$flag\)/\($val\)/
6274 if set_seen ($val);
6275 }
6277 # If the computed command is the same as the generic command, use
6278 # the command linker variable.
6279 return ($lang->linker, $lang->lder)
6280 if $link_command eq $orig_command;
6282 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6283 return ("${target}_LINK", $lang->lder);
6284 }
6286 ################################################################
6288 # &check_trailing_slash ($WHERE, $LINE)
6289 # -------------------------------------
6290 # Return 1 iff $LINE ends with a slash.
6291 # Might modify $LINE.
6292 sub check_trailing_slash ($\$)
6293 {
6294 my ($where, $line) = @_;
6296 # Ignore '##' lines.
6297 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6299 # Catch and fix a common error.
6300 msg "syntax", $where, "whitespace following trailing backslash"
6301 if $$line =~ s/\\\s+\n$/\\\n/;
6303 return $$line =~ /\\$/;
6304 }
6307 # &read_am_file ($AMFILE, $WHERE)
6308 # -------------------------------
6309 # Read Makefile.am and set up %contents. Simultaneously copy lines
6310 # from Makefile.am into $output_trailer, or define variables as
6311 # appropriate. NOTE we put rules in the trailer section. We want
6312 # user rules to come after our generated stuff.
6313 sub read_am_file ($$)
6314 {
6315 my ($amfile, $where) = @_;
6317 my $am_file = new Automake::XFile ("< $amfile");
6318 verb "reading $amfile";
6320 # Keep track of the youngest output dependency.
6321 my $mtime = mtime $amfile;
6322 $output_deps_greatest_timestamp = $mtime
6323 if $mtime > $output_deps_greatest_timestamp;
6325 my $spacing = '';
6326 my $comment = '';
6327 my $blank = 0;
6328 my $saw_bk = 0;
6329 my $var_look = VAR_ASIS;
6331 use constant IN_VAR_DEF => 0;
6332 use constant IN_RULE_DEF => 1;
6333 use constant IN_COMMENT => 2;
6334 my $prev_state = IN_RULE_DEF;
6336 while ($_ = $am_file->getline)
6337 {
6338 $where->set ("$amfile:$.");
6339 if (/$IGNORE_PATTERN/o)
6340 {
6341 # Merely delete comments beginning with two hashes.
6342 }
6343 elsif (/$WHITE_PATTERN/o)
6344 {
6345 error $where, "blank line following trailing backslash"
6346 if $saw_bk;
6347 # Stick a single white line before the incoming macro or rule.
6348 $spacing = "\n";
6349 $blank = 1;
6350 # Flush all comments seen so far.
6351 if ($comment ne '')
6352 {
6353 $output_vars .= $comment;
6354 $comment = '';
6355 }
6356 }
6357 elsif (/$COMMENT_PATTERN/o)
6358 {
6359 # Stick comments before the incoming macro or rule. Make
6360 # sure a blank line precedes the first block of comments.
6361 $spacing = "\n" unless $blank;
6362 $blank = 1;
6363 $comment .= $spacing . $_;
6364 $spacing = '';
6365 $prev_state = IN_COMMENT;
6366 }
6367 else
6368 {
6369 last;
6370 }
6371 $saw_bk = check_trailing_slash ($where, $_);
6372 }
6374 # We save the conditional stack on entry, and then check to make
6375 # sure it is the same on exit. This lets us conditionally include
6376 # other files.
6377 my @saved_cond_stack = @cond_stack;
6378 my $cond = new Automake::Condition (@cond_stack);
6380 my $last_var_name = '';
6381 my $last_var_type = '';
6382 my $last_var_value = '';
6383 my $last_where;
6384 # FIXME: shouldn't use $_ in this loop; it is too big.
6385 while ($_)
6386 {
6387 $where->set ("$amfile:$.");
6389 # Make sure the line is \n-terminated.
6390 chomp;
6391 $_ .= "\n";
6393 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6394 # used by users. @MAINT@ is an anachronism now.
6395 $_ =~ s/\@MAINT\@//g
6396 unless $seen_maint_mode;
6398 my $new_saw_bk = check_trailing_slash ($where, $_);
6400 if (/$IGNORE_PATTERN/o)
6401 {
6402 # Merely delete comments beginning with two hashes.
6404 # Keep any backslash from the previous line.
6405 $new_saw_bk = $saw_bk;
6406 }
6407 elsif (/$WHITE_PATTERN/o)
6408 {
6409 # Stick a single white line before the incoming macro or rule.
6410 $spacing = "\n";
6411 error $where, "blank line following trailing backslash"
6412 if $saw_bk;
6413 }
6414 elsif (/$COMMENT_PATTERN/o)
6415 {
6416 error $where, "comment following trailing backslash"
6417 if $saw_bk && $prev_state != IN_COMMENT;
6419 # Stick comments before the incoming macro or rule.
6420 $comment .= $spacing . $_;
6421 $spacing = '';
6422 $prev_state = IN_COMMENT;
6423 }
6424 elsif ($saw_bk)
6425 {
6426 if ($prev_state == IN_RULE_DEF)
6427 {
6428 my $cond = new Automake::Condition @cond_stack;
6429 $output_trailer .= $cond->subst_string;
6430 $output_trailer .= $_;
6431 }
6432 elsif ($prev_state == IN_COMMENT)
6433 {
6434 # If the line doesn't start with a '#', add it.
6435 # We do this because a continued comment like
6436 # # A = foo \
6437 # bar \
6438 # baz
6439 # is not portable. BSD make doesn't honor
6440 # escaped newlines in comments.
6441 s/^#?/#/;
6442 $comment .= $spacing . $_;
6443 }
6444 else # $prev_state == IN_VAR_DEF
6445 {
6446 $last_var_value .= ' '
6447 unless $last_var_value =~ /\s$/;
6448 $last_var_value .= $_;
6450 if (!/\\$/)
6451 {
6452 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6453 $last_var_type, $cond,
6454 $last_var_value, $comment,
6455 $last_where, VAR_ASIS)
6456 if $cond != FALSE;
6457 $comment = $spacing = '';
6458 }
6459 }
6460 }
6462 elsif (/$IF_PATTERN/o)
6463 {
6464 $cond = cond_stack_if ($1, $2, $where);
6465 }
6466 elsif (/$ELSE_PATTERN/o)
6467 {
6468 $cond = cond_stack_else ($1, $2, $where);
6469 }
6470 elsif (/$ENDIF_PATTERN/o)
6471 {
6472 $cond = cond_stack_endif ($1, $2, $where);
6473 }
6475 elsif (/$RULE_PATTERN/o)
6476 {
6477 # Found a rule.
6478 $prev_state = IN_RULE_DEF;
6480 # For now we have to output all definitions of user rules
6481 # and can't diagnose duplicates (see the comment in
6482 # Automake::Rule::define). So we go on and ignore the return value.
6483 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6485 check_variable_expansions ($_, $where);
6487 $output_trailer .= $comment . $spacing;
6488 my $cond = new Automake::Condition @cond_stack;
6489 $output_trailer .= $cond->subst_string;
6490 $output_trailer .= $_;
6491 $comment = $spacing = '';
6492 }
6493 elsif (/$ASSIGNMENT_PATTERN/o)
6494 {
6495 # Found a macro definition.
6496 $prev_state = IN_VAR_DEF;
6497 $last_var_name = $1;
6498 $last_var_type = $2;
6499 $last_var_value = $3;
6500 $last_where = $where->clone;
6501 if ($3 ne '' && substr ($3, -1) eq "\\")
6502 {
6503 # We preserve the '\' because otherwise the long lines
6504 # that are generated will be truncated by broken
6505 # 'sed's.
6506 $last_var_value = $3 . "\n";
6507 }
6508 # Normally we try to output variable definitions in the
6509 # same format they were input. However, POSIX compliant
6510 # systems are not required to support lines longer than
6511 # 2048 bytes (most notably, some sed implementation are
6512 # limited to 4000 bytes, and sed is used by config.status
6513 # to rewrite Makefile.in into Makefile). Moreover nobody
6514 # would really write such long lines by hand since it is
6515 # hardly maintainable. So if a line is longer that 1000
6516 # bytes (an arbitrary limit), assume it has been
6517 # automatically generated by some tools, and flatten the
6518 # variable definition. Otherwise, keep the variable as it
6519 # as been input.
6520 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6522 if (!/\\$/)
6523 {
6524 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6525 $last_var_type, $cond,
6526 $last_var_value, $comment,
6527 $last_where, $var_look)
6528 if $cond != FALSE;
6529 $comment = $spacing = '';
6530 $var_look = VAR_ASIS;
6531 }
6532 }
6533 elsif (/$INCLUDE_PATTERN/o)
6534 {
6535 my $path = $1;
6537 if ($path =~ s/^\$\(top_srcdir\)\///)
6538 {
6539 push (@include_stack, "\$\(top_srcdir\)/$path");
6540 # Distribute any included file.
6542 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6543 # otherwise OSF make will implicitly copy the included
6544 # file in the build tree during "make distdir" to satisfy
6545 # the dependency.
6546 # (subdircond2.test and subdircond3.test will fail.)
6547 push_dist_common ("\$\(top_srcdir\)/$path");
6548 }
6549 else
6550 {
6551 $path =~ s/\$\(srcdir\)\///;
6552 push (@include_stack, "\$\(srcdir\)/$path");
6553 # Always use the $(srcdir) prefix in DIST_COMMON,
6554 # otherwise OSF make will implicitly copy the included
6555 # file in the build tree during "make distdir" to satisfy
6556 # the dependency.
6557 # (subdircond2.test and subdircond3.test will fail.)
6558 push_dist_common ("\$\(srcdir\)/$path");
6559 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6560 }
6561 $where->push_context ("'$path' included from here");
6562 &read_am_file ($path, $where);
6563 $where->pop_context;
6564 }
6565 else
6566 {
6567 # This isn't an error; it is probably a continued rule.
6568 # In fact, this is what we assume.
6569 $prev_state = IN_RULE_DEF;
6570 check_variable_expansions ($_, $where);
6571 $output_trailer .= $comment . $spacing;
6572 my $cond = new Automake::Condition @cond_stack;
6573 $output_trailer .= $cond->subst_string;
6574 $output_trailer .= $_;
6575 $comment = $spacing = '';
6576 error $where, "'#' comment at start of rule is unportable"
6577 if $_ =~ /^\t\s*\#/;
6578 }
6580 $saw_bk = $new_saw_bk;
6581 $_ = $am_file->getline;
6582 }
6584 $output_trailer .= $comment;
6586 error ($where, "trailing backslash on last line")
6587 if $saw_bk;
6589 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6590 : "too many conditionals closed in include file"))
6591 if "@saved_cond_stack" ne "@cond_stack";
6592 }
6595 # define_standard_variables ()
6596 # ----------------------------
6597 # A helper for read_main_am_file which initializes configure variables
6598 # and variables from header-vars.am.
6599 sub define_standard_variables
6600 {
6601 my $saved_output_vars = $output_vars;
6602 my ($comments, undef, $rules) =
6603 file_contents_internal (1, "$libdir/am/header-vars.am",
6604 new Automake::Location);
6606 foreach my $var (sort keys %configure_vars)
6607 {
6608 &define_configure_variable ($var);
6609 }
6611 $output_vars .= $comments . $rules;
6612 }
6614 # Read main am file.
6615 sub read_main_am_file ($$)
6616 {
6617 my ($amfile, $infile) = @_;
6619 # This supports the strange variable tricks we are about to play.
6620 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6621 if (scalar (variables) > 0);
6623 # Generate copyright header for generated Makefile.in.
6624 # We do discard the output of predefined variables, handled below.
6625 $output_vars = ("# " . basename ($infile) . " generated by automake "
6626 . $VERSION . " from " . basename ($amfile) . ".\n");
6627 $output_vars .= '# ' . subst ('configure_input') . "\n";
6628 $output_vars .= $gen_copyright;
6630 # We want to predefine as many variables as possible. This lets
6631 # the user set them with '+=' in Makefile.am.
6632 &define_standard_variables;
6634 # Read user file, which might override some of our values.
6635 &read_am_file ($amfile, new Automake::Location);
6636 }
6640 ################################################################
6642 # $FLATTENED
6643 # &flatten ($STRING)
6644 # ------------------
6645 # Flatten the $STRING and return the result.
6646 sub flatten
6647 {
6648 $_ = shift;
6650 s/\\\n//somg;
6651 s/\s+/ /g;
6652 s/^ //;
6653 s/ $//;
6655 return $_;
6656 }
6659 # transform_token ($TOKEN, \%PAIRS, $KEY)
6660 # =======================================
6661 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6662 # (which should be ?KEY? or any of the special %% requests)..
6663 sub transform_token ($$$)
6664 {
6665 my ($token, $transform, $key) = @_;
6666 my $res = $transform->{$key};
6667 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6668 return $res;
6669 }
6672 # transform ($TOKEN, \%PAIRS)
6673 # ===========================
6674 # If ($TOKEN, $VAL) is in %PAIRS:
6675 # - replaces %KEY% with $VAL,
6676 # - enables/disables ?KEY? and ?!KEY?,
6677 # - replaces %?KEY% with TRUE or FALSE.
6678 sub transform ($$)
6679 {
6680 my ($token, $transform) = @_;
6682 # %KEY%.
6683 # Must be before the following pattern to exclude the case
6684 # when there is neither IFTRUE nor IFFALSE.
6685 if ($token =~ /^%([\w\-]+)%$/)
6686 {
6687 return transform_token ($token, $transform, $1);
6688 }
6689 # %?KEY%.
6690 elsif ($token =~ /^%\?([\w\-]+)%$/)
6691 {
6692 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6693 }
6694 # ?KEY? and ?!KEY?.
6695 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6696 {
6697 my $neg = ($1 eq '!') ? 1 : 0;
6698 my $val = transform_token ($token, $transform, $2);
6699 return (!!$val == $neg) ? '##%' : '';
6700 }
6701 else
6702 {
6703 prog_error "Unknown request format: $token";
6704 }
6705 }
6707 # $TEXT
6708 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6709 # -----------------------------------------
6710 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6711 # No extra parsing or post-processing is done (i.e., recognition of
6712 # rules declaration or of make variables definitions).
6713 sub preprocess_file ($%)
6714 {
6715 my ($file, %transform) = @_;
6717 # Complete %transform with global options.
6718 # Note that %transform goes last, so it overrides global options.
6719 %transform = ( 'MAINTAINER-MODE'
6720 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6722 'XZ' => !! option 'dist-xz',
6723 'LZIP' => !! option 'dist-lzip',
6724 'BZIP2' => !! option 'dist-bzip2',
6725 'COMPRESS' => !! option 'dist-tarZ',
6726 'GZIP' => ! option 'no-dist-gzip',
6727 'SHAR' => !! option 'dist-shar',
6728 'ZIP' => !! option 'dist-zip',
6730 'INSTALL-INFO' => ! option 'no-installinfo',
6731 'INSTALL-MAN' => ! option 'no-installman',
6732 'CK-NEWS' => !! option 'check-news',
6734 'SUBDIRS' => !! var ('SUBDIRS'),
6735 'TOPDIR_P' => $relative_dir eq '.',
6737 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6738 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6739 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6741 'LIBTOOL' => !! var ('LIBTOOL'),
6742 'NONLIBTOOL' => 1,
6743 %transform);
6745 if (! defined ($_ = $am_file_cache{$file}))
6746 {
6747 verb "reading $file";
6748 # Swallow the whole file.
6749 my $fc_file = new Automake::XFile "< $file";
6750 my $saved_dollar_slash = $/;
6751 undef $/;
6752 $_ = $fc_file->getline;
6753 $/ = $saved_dollar_slash;
6754 $fc_file->close;
6755 # Remove ##-comments.
6756 # Besides we don't need more than two consecutive new-lines.
6757 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6758 # Remember the contents of the just-read file.
6759 $am_file_cache{$file} = $_;
6760 }
6762 # Substitute Automake template tokens.
6763 s/(?: % \?? [\w\-]+ %
6764 | \? !? [\w\-]+ \?
6765 )/transform($&, \%transform)/gex;
6766 # transform() may have added some ##%-comments to strip.
6767 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6768 # ####### and do not remove the latter.)
6769 s/^[ \t]*(?:##%)+.*\n//gm;
6771 return $_;
6772 }
6775 # @PARAGRAPHS
6776 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6777 # ------------------------------------------
6778 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6779 # paragraphs.
6780 sub make_paragraphs ($%)
6781 {
6782 my ($file, %transform) = @_;
6783 $transform{FIRST} = !$transformed_files{$file};
6784 $transformed_files{$file} = 1;
6786 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6787 my @res;
6789 while (defined ($_ = shift @lines))
6790 {
6791 my $paragraph = $_;
6792 # If we are a rule, eat as long as we start with a tab.
6793 if (/$RULE_PATTERN/smo)
6794 {
6795 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6796 {
6797 $paragraph .= "\n$_";
6798 }
6799 unshift (@lines, $_);
6800 }
6802 # If we are a comments, eat as much comments as you can.
6803 elsif (/$COMMENT_PATTERN/smo)
6804 {
6805 while (defined ($_ = shift @lines)
6806 && $_ =~ /$COMMENT_PATTERN/smo)
6807 {
6808 $paragraph .= "\n$_";
6809 }
6810 unshift (@lines, $_);
6811 }
6813 push @res, $paragraph;
6814 }
6816 return @res;
6817 }
6821 # ($COMMENT, $VARIABLES, $RULES)
6822 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6823 # -------------------------------------------------------------
6824 # Return contents of a file from $libdir/am, automatically skipping
6825 # macros or rules which are already known. $IS_AM iff the caller is
6826 # reading an Automake file (as opposed to the user's Makefile.am).
6827 sub file_contents_internal ($$$%)
6828 {
6829 my ($is_am, $file, $where, %transform) = @_;
6831 $where->set ($file);
6833 my $result_vars = '';
6834 my $result_rules = '';
6835 my $comment = '';
6836 my $spacing = '';
6838 # The following flags are used to track rules spanning across
6839 # multiple paragraphs.
6840 my $is_rule = 0; # 1 if we are processing a rule.
6841 my $discard_rule = 0; # 1 if the current rule should not be output.
6843 # We save the conditional stack on entry, and then check to make
6844 # sure it is the same on exit. This lets us conditionally include
6845 # other files.
6846 my @saved_cond_stack = @cond_stack;
6847 my $cond = new Automake::Condition (@cond_stack);
6849 foreach (make_paragraphs ($file, %transform))
6850 {
6851 # FIXME: no line number available.
6852 $where->set ($file);
6854 # Sanity checks.
6855 error $where, "blank line following trailing backslash:\n$_"
6856 if /\\$/;
6857 error $where, "comment following trailing backslash:\n$_"
6858 if /\\#/;
6860 if (/^$/)
6861 {
6862 $is_rule = 0;
6863 # Stick empty line before the incoming macro or rule.
6864 $spacing = "\n";
6865 }
6866 elsif (/$COMMENT_PATTERN/mso)
6867 {
6868 $is_rule = 0;
6869 # Stick comments before the incoming macro or rule.
6870 $comment = "$_\n";
6871 }
6873 # Handle inclusion of other files.
6874 elsif (/$INCLUDE_PATTERN/o)
6875 {
6876 if ($cond != FALSE)
6877 {
6878 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6879 $where->push_context ("'$file' included from here");
6880 # N-ary '.=' fails.
6881 my ($com, $vars, $rules)
6882 = file_contents_internal ($is_am, $file, $where, %transform);
6883 $where->pop_context;
6884 $comment .= $com;
6885 $result_vars .= $vars;
6886 $result_rules .= $rules;
6887 }
6888 }
6890 # Handling the conditionals.
6891 elsif (/$IF_PATTERN/o)
6892 {
6893 $cond = cond_stack_if ($1, $2, $file);
6894 }
6895 elsif (/$ELSE_PATTERN/o)
6896 {
6897 $cond = cond_stack_else ($1, $2, $file);
6898 }
6899 elsif (/$ENDIF_PATTERN/o)
6900 {
6901 $cond = cond_stack_endif ($1, $2, $file);
6902 }
6904 # Handling rules.
6905 elsif (/$RULE_PATTERN/mso)
6906 {
6907 $is_rule = 1;
6908 $discard_rule = 0;
6909 # Separate relationship from optional actions: the first
6910 # `new-line tab" not preceded by backslash (continuation
6911 # line).
6912 my $paragraph = $_;
6913 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6914 my ($relationship, $actions) = ($1, $2 || '');
6916 # Separate targets from dependencies: the first colon.
6917 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6918 my ($targets, $dependencies) = ($1, $2);
6919 # Remove the escaped new lines.
6920 # I don't know why, but I have to use a tmp $flat_deps.
6921 my $flat_deps = &flatten ($dependencies);
6922 my @deps = split (' ', $flat_deps);
6924 foreach (split (' ', $targets))
6925 {
6926 # FIXME: 1. We are not robust to people defining several targets
6927 # at once, only some of them being in %dependencies. The
6928 # actions from the targets in %dependencies are usually generated
6929 # from the content of %actions, but if some targets in $targets
6930 # are not in %dependencies the ELSE branch will output
6931 # a rule for all $targets (i.e. the targets which are both
6932 # in %dependencies and $targets will have two rules).
6934 # FIXME: 2. The logic here is not able to output a
6935 # multi-paragraph rule several time (e.g. for each condition
6936 # it is defined for) because it only knows the first paragraph.
6938 # FIXME: 3. We are not robust to people defining a subset
6939 # of a previously defined "multiple-target" rule. E.g.
6940 # 'foo:' after 'foo bar:'.
6942 # Output only if not in FALSE.
6943 if (defined $dependencies{$_} && $cond != FALSE)
6944 {
6945 &depend ($_, @deps);
6946 register_action ($_, $actions);
6947 }
6948 else
6949 {
6950 # Free-lance dependency. Output the rule for all the
6951 # targets instead of one by one.
6952 my @undefined_conds =
6953 Automake::Rule::define ($targets, $file,
6954 $is_am ? RULE_AUTOMAKE : RULE_USER,
6955 $cond, $where);
6956 for my $undefined_cond (@undefined_conds)
6957 {
6958 my $condparagraph = $paragraph;
6959 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6960 $result_rules .= "$spacing$comment$condparagraph\n";
6961 }
6962 if (scalar @undefined_conds == 0)
6963 {
6964 # Remember to discard next paragraphs
6965 # if they belong to this rule.
6966 # (but see also FIXME: #2 above.)
6967 $discard_rule = 1;
6968 }
6969 $comment = $spacing = '';
6970 last;
6971 }
6972 }
6973 }
6975 elsif (/$ASSIGNMENT_PATTERN/mso)
6976 {
6977 my ($var, $type, $val) = ($1, $2, $3);
6978 error $where, "variable '$var' with trailing backslash"
6979 if /\\$/;
6981 $is_rule = 0;
6983 Automake::Variable::define ($var,
6984 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6985 $type, $cond, $val, $comment, $where,
6986 VAR_ASIS)
6987 if $cond != FALSE;
6989 $comment = $spacing = '';
6990 }
6991 else
6992 {
6993 # This isn't an error; it is probably some tokens which
6994 # configure is supposed to replace, such as '@SET-MAKE@',
6995 # or some part of a rule cut by an if/endif.
6996 if (! $cond->false && ! ($is_rule && $discard_rule))
6997 {
6998 s/^/$cond->subst_string/gme;
6999 $result_rules .= "$spacing$comment$_\n";
7000 }
7001 $comment = $spacing = '';
7002 }
7003 }
7005 error ($where, @cond_stack ?
7006 "unterminated conditionals: @cond_stack" :
7007 "too many conditionals closed in include file")
7008 if "@saved_cond_stack" ne "@cond_stack";
7010 return ($comment, $result_vars, $result_rules);
7011 }
7014 # $CONTENTS
7015 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7016 # ------------------------------------------------
7017 # Return contents of a file from $libdir/am, automatically skipping
7018 # macros or rules which are already known.
7019 sub file_contents ($$%)
7020 {
7021 my ($basename, $where, %transform) = @_;
7022 my ($comments, $variables, $rules) =
7023 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7024 %transform);
7025 return "$comments$variables$rules";
7026 }
7029 # @PREFIX
7030 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7031 # -----------------------------------------------------
7032 # Find all variable prefixes that are used for install directories. A
7033 # prefix 'zar' qualifies iff:
7034 #
7035 # * 'zardir' is a variable.
7036 # * 'zar_PRIMARY' is a variable.
7037 #
7038 # As a side effect, it looks for misspellings. It is an error to have
7039 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7040 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7041 # of the same name (with "dir" appended) exists. For instance, if the
7042 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7043 # This is to provide a little extra flexibility in those cases which
7044 # need it.
7045 sub am_primary_prefixes ($$@)
7046 {
7047 my ($primary, $can_dist, @prefixes) = @_;
7049 local $_;
7050 my %valid = map { $_ => 0 } @prefixes;
7051 $valid{'EXTRA'} = 0;
7052 foreach my $var (variables $primary)
7053 {
7054 # Automake is allowed to define variables that look like primaries
7055 # but which aren't. E.g. INSTALL_sh_DATA.
7056 # Autoconf can also define variables like INSTALL_DATA, so
7057 # ignore all configure variables (at least those which are not
7058 # redefined in Makefile.am).
7059 # FIXME: We should make sure that these variables are not
7060 # conditionally defined (or else adjust the condition below).
7061 my $def = $var->def (TRUE);
7062 next if $def && $def->owner != VAR_MAKEFILE;
7064 my $varname = $var->name;
7066 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7067 {
7068 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7069 if ($dist ne '' && ! $can_dist)
7070 {
7071 err_var ($var,
7072 "invalid variable '$varname': 'dist' is forbidden");
7073 }
7074 # Standard directories must be explicitly allowed.
7075 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7076 {
7077 err_var ($var,
7078 "'${X}dir' is not a legitimate directory " .
7079 "for '$primary'");
7080 }
7081 # A not explicitly valid directory is allowed if Xdir is defined.
7082 elsif (! defined $valid{$X} &&
7083 $var->requires_variables ("'$varname' is used", "${X}dir"))
7084 {
7085 # Nothing to do. Any error message has been output
7086 # by $var->requires_variables.
7087 }
7088 else
7089 {
7090 # Ensure all extended prefixes are actually used.
7091 $valid{"$base$dist$X"} = 1;
7092 }
7093 }
7094 else
7095 {
7096 prog_error "unexpected variable name: $varname";
7097 }
7098 }
7100 # Return only those which are actually defined.
7101 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7102 }
7105 # Handle 'where_HOW' variable magic. Does all lookups, generates
7106 # install code, and possibly generates code to define the primary
7107 # variable. The first argument is the name of the .am file to munge,
7108 # the second argument is the primary variable (e.g. HEADERS), and all
7109 # subsequent arguments are possible installation locations.
7110 #
7111 # Returns list of [$location, $value] pairs, where
7112 # $value's are the values in all where_HOW variable, and $location
7113 # there associated location (the place here their parent variables were
7114 # defined).
7115 #
7116 # FIXME: this should be rewritten to be cleaner. It should be broken
7117 # up into multiple functions.
7118 #
7119 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7120 sub am_install_var
7121 {
7122 my (@args) = @_;
7124 my $do_require = 1;
7125 my $can_dist = 0;
7126 my $default_dist = 0;
7127 while (@args)
7128 {
7129 if ($args[0] eq '-noextra')
7130 {
7131 $do_require = 0;
7132 }
7133 elsif ($args[0] eq '-candist')
7134 {
7135 $can_dist = 1;
7136 }
7137 elsif ($args[0] eq '-defaultdist')
7138 {
7139 $default_dist = 1;
7140 $can_dist = 1;
7141 }
7142 elsif ($args[0] !~ /^-/)
7143 {
7144 last;
7145 }
7146 shift (@args);
7147 }
7149 my ($file, $primary, @prefix) = @args;
7151 # Now that configure substitutions are allowed in where_HOW
7152 # variables, it is an error to actually define the primary. We
7153 # allow 'JAVA', as it is customarily used to mean the Java
7154 # interpreter. This is but one of several Java hacks. Similarly,
7155 # 'PYTHON' is customarily used to mean the Python interpreter.
7156 reject_var $primary, "'$primary' is an anachronism"
7157 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7159 # Get the prefixes which are valid and actually used.
7160 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7162 # If a primary includes a configure substitution, then the EXTRA_
7163 # form is required. Otherwise we can't properly do our job.
7164 my $require_extra;
7166 my @used = ();
7167 my @result = ();
7169 foreach my $X (@prefix)
7170 {
7171 my $nodir_name = $X;
7172 my $one_name = $X . '_' . $primary;
7173 my $one_var = var $one_name;
7175 my $strip_subdir = 1;
7176 # If subdir prefix should be preserved, do so.
7177 if ($nodir_name =~ /^nobase_/)
7178 {
7179 $strip_subdir = 0;
7180 $nodir_name =~ s/^nobase_//;
7181 }
7183 # If files should be distributed, do so.
7184 my $dist_p = 0;
7185 if ($can_dist)
7186 {
7187 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7188 || (! $default_dist && $nodir_name =~ /^dist_/));
7189 $nodir_name =~ s/^(dist|nodist)_//;
7190 }
7193 # Use the location of the currently processed variable.
7194 # We are not processing a particular condition, so pick the first
7195 # available.
7196 my $tmpcond = $one_var->conditions->one_cond;
7197 my $where = $one_var->rdef ($tmpcond)->location->clone;
7199 # Append actual contents of where_PRIMARY variable to
7200 # @result, skipping @substitutions@.
7201 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7202 {
7203 my ($loc, $value) = @$locvals;
7204 # Skip configure substitutions.
7205 if ($value =~ /^\@.*\@$/)
7206 {
7207 if ($nodir_name eq 'EXTRA')
7208 {
7209 error ($where,
7210 "'$one_name' contains configure substitution, "
7211 . "but shouldn't");
7212 }
7213 # Check here to make sure variables defined in
7214 # configure.ac do not imply that EXTRA_PRIMARY
7215 # must be defined.
7216 elsif (! defined $configure_vars{$one_name})
7217 {
7218 $require_extra = $one_name
7219 if $do_require;
7220 }
7221 }
7222 else
7223 {
7224 # Strip any $(EXEEXT) suffix the user might have added, or this
7225 # will confuse &handle_source_transform and &check_canonical_spelling.
7226 # We'll add $(EXEEXT) back later anyway.
7227 # Do it here rather than in handle_programs so the uniquifying at the
7228 # end of this function works.
7229 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7230 if $primary eq 'PROGRAMS';
7232 push (@result, $locvals);
7233 }
7234 }
7235 # A blatant hack: we rewrite each _PROGRAMS primary to include
7236 # EXEEXT.
7237 append_exeext { 1 } $one_name
7238 if $primary eq 'PROGRAMS';
7239 # "EXTRA" shouldn't be used when generating clean targets,
7240 # all, or install targets. We used to warn if EXTRA_FOO was
7241 # defined uselessly, but this was annoying.
7242 next
7243 if $nodir_name eq 'EXTRA';
7245 if ($nodir_name eq 'check')
7246 {
7247 push (@check, '$(' . $one_name . ')');
7248 }
7249 else
7250 {
7251 push (@used, '$(' . $one_name . ')');
7252 }
7254 # Is this to be installed?
7255 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7257 # If so, with install-exec? (or install-data?).
7258 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7260 my $check_options_p = $install_p && !! option 'std-options';
7262 # Use the location of the currently processed variable as context.
7263 $where->push_context ("while processing '$one_name'");
7265 # The variable containing all files to distribute.
7266 my $distvar = "\$($one_name)";
7267 $distvar = shadow_unconditionally ($one_name, $where)
7268 if ($dist_p && $one_var->has_conditional_contents);
7270 # Singular form of $PRIMARY.
7271 (my $one_primary = $primary) =~ s/S$//;
7272 $output_rules .= &file_contents ($file, $where,
7273 PRIMARY => $primary,
7274 ONE_PRIMARY => $one_primary,
7275 DIR => $X,
7276 NDIR => $nodir_name,
7277 BASE => $strip_subdir,
7279 EXEC => $exec_p,
7280 INSTALL => $install_p,
7281 DIST => $dist_p,
7282 DISTVAR => $distvar,
7283 'CK-OPTS' => $check_options_p);
7284 }
7286 # The JAVA variable is used as the name of the Java interpreter.
7287 # The PYTHON variable is used as the name of the Python interpreter.
7288 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7289 {
7290 # Define it.
7291 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7292 $output_vars .= "\n";
7293 }
7295 err_var ($require_extra,
7296 "'$require_extra' contains configure substitution,\n"
7297 . "but 'EXTRA_$primary' not defined")
7298 if ($require_extra && ! var ('EXTRA_' . $primary));
7300 # Push here because PRIMARY might be configure time determined.
7301 push (@all, '$(' . $primary . ')')
7302 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7304 # Make the result unique. This lets the user use conditionals in
7305 # a natural way, but still lets us program lazily -- we don't have
7306 # to worry about handling a particular object more than once.
7307 # We will keep only one location per object.
7308 my %result = ();
7309 for my $pair (@result)
7310 {
7311 my ($loc, $val) = @$pair;
7312 $result{$val} = $loc;
7313 }
7314 my @l = sort keys %result;
7315 return map { [$result{$_}->clone, $_] } @l;
7316 }
7319 ################################################################
7321 # Each key in this hash is the name of a directory holding a
7322 # Makefile.in. These variables are local to 'is_make_dir'.
7323 my %make_dirs = ();
7324 my $make_dirs_set = 0;
7326 sub is_make_dir
7327 {
7328 my ($dir) = @_;
7329 if (! $make_dirs_set)
7330 {
7331 foreach my $iter (@configure_input_files)
7332 {
7333 $make_dirs{dirname ($iter)} = 1;
7334 }
7335 # We also want to notice Makefile.in's.
7336 foreach my $iter (@other_input_files)
7337 {
7338 if ($iter =~ /Makefile\.in$/)
7339 {
7340 $make_dirs{dirname ($iter)} = 1;
7341 }
7342 }
7343 $make_dirs_set = 1;
7344 }
7345 return defined $make_dirs{$dir};
7346 }
7348 ################################################################
7350 # Find the aux dir. This should match the algorithm used by
7351 # ./configure. (See the Autoconf documentation for for
7352 # AC_CONFIG_AUX_DIR.)
7353 sub locate_aux_dir ()
7354 {
7355 if (! $config_aux_dir_set_in_configure_ac)
7356 {
7357 # The default auxiliary directory is the first
7358 # of ., .., or ../.. that contains install-sh.
7359 # Assume . if install-sh doesn't exist yet.
7360 for my $dir (qw (. .. ../..))
7361 {
7362 if (-f "$dir/install-sh")
7363 {
7364 $config_aux_dir = $dir;
7365 last;
7366 }
7367 }
7368 $config_aux_dir = '.' unless $config_aux_dir;
7369 }
7370 # Avoid unsightly '/.'s.
7371 $am_config_aux_dir =
7372 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7373 $am_config_aux_dir =~ s,/*$,,;
7374 }
7377 # &push_required_file ($DIR, $FILE, $FULLFILE)
7378 # --------------------------------------------------
7379 # Push the given file onto DIST_COMMON.
7380 sub push_required_file
7381 {
7382 my ($dir, $file, $fullfile) = @_;
7384 # If the file to be distributed is in the same directory of the
7385 # currently processed Makefile.am, then we want to distribute it
7386 # from this same Makefile.am.
7387 if ($dir eq $relative_dir)
7388 {
7389 push_dist_common ($file);
7390 }
7391 # This is needed to allow a construct in a non-top-level Makefile.am
7392 # to require a file in the build-aux directory (see at least the test
7393 # script 'test-driver-is-distributed.test'). This is related to the
7394 # automake bug#9546. Note that the use of $config_aux_dir instead
7395 # of $am_config_aux_dir here is deliberate and necessary.
7396 elsif ($dir eq $config_aux_dir)
7397 {
7398 push_dist_common ("$am_config_aux_dir/$file");
7399 }
7400 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7401 # We probably need some refactoring of this function and its callers,
7402 # to have a more explicit and systematic handling of all the special
7403 # cases; but, since there are only two of them, this is low-priority
7404 # ATM.
7405 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7406 {
7407 # Avoid unsightly '/.'s.
7408 my $am_config_libobj_dir =
7409 '$(top_srcdir)' .
7410 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7411 $am_config_libobj_dir =~ s|/*$||;
7412 push_dist_common ("$am_config_libobj_dir/$file");
7413 }
7414 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7415 {
7416 # If we are doing the topmost directory, and the file is in a
7417 # subdir which does not have a Makefile, then we distribute it
7418 # here.
7420 # If a required file is above the source tree, it is important
7421 # to prefix it with '$(srcdir)' so that no VPATH search is
7422 # performed. Otherwise problems occur with Make implementations
7423 # that rewrite and simplify rules whose dependencies are found in a
7424 # VPATH location. Here is an example with OSF1/Tru64 Make.
7425 #
7426 # % cat Makefile
7427 # VPATH = sub
7428 # distdir: ../a
7429 # echo ../a
7430 # % ls
7431 # Makefile a
7432 # % make
7433 # echo a
7434 # a
7435 #
7436 # Dependency '../a' was found in 'sub/../a', but this make
7437 # implementation simplified it as 'a'. (Note that the sub/
7438 # directory does not even exist.)
7439 #
7440 # This kind of VPATH rewriting seems hard to cancel. The
7441 # distdir.am hack against VPATH rewriting works only when no
7442 # simplification is done, i.e., for dependencies which are in
7443 # subdirectories, not in enclosing directories. Hence, in
7444 # the latter case we use a full path to make sure no VPATH
7445 # search occurs.
7446 $fullfile = '$(srcdir)/' . $fullfile
7447 if $dir =~ m,^\.\.(?:$|/),;
7449 push_dist_common ($fullfile);
7450 }
7451 else
7452 {
7453 prog_error "a Makefile in relative directory $relative_dir " .
7454 "can't add files in directory $dir to DIST_COMMON";
7455 }
7456 }
7459 # If a file name appears as a key in this hash, then it has already
7460 # been checked for. This allows us not to report the same error more
7461 # than once.
7462 my %required_file_not_found = ();
7464 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7465 # --------------------------------------------------------
7466 # Verify that the file must exist in $DIRECTORY, or install it.
7467 sub required_file_check_or_copy ($$$)
7468 {
7469 my ($where, $dir, $file) = @_;
7471 my $fullfile = "$dir/$file";
7472 my $found_it = 0;
7473 my $dangling_sym = 0;
7475 if (-l $fullfile && ! -f $fullfile)
7476 {
7477 $dangling_sym = 1;
7478 }
7479 elsif (dir_has_case_matching_file ($dir, $file))
7480 {
7481 $found_it = 1;
7482 }
7484 # '--force-missing' only has an effect if '--add-missing' is
7485 # specified.
7486 return
7487 if $found_it && (! $add_missing || ! $force_missing);
7489 # If we've already looked for it, we're done. You might
7490 # wonder why we don't do this before searching for the
7491 # file. If we do that, then something like
7492 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7493 # DIST_COMMON.
7494 if (! $found_it)
7495 {
7496 return if defined $required_file_not_found{$fullfile};
7497 $required_file_not_found{$fullfile} = 1;
7498 }
7499 if ($dangling_sym && $add_missing)
7500 {
7501 unlink ($fullfile);
7502 }
7504 my $trailer = '';
7505 my $trailer2 = '';
7506 my $suppress = 0;
7508 # Only install missing files according to our desired
7509 # strictness level.
7510 my $message = "required file '$fullfile' not found";
7511 if ($add_missing)
7512 {
7513 if (-f "$libdir/$file")
7514 {
7515 $suppress = 1;
7517 # Install the missing file. Symlink if we
7518 # can, copy if we must. Note: delete the file
7519 # first, in case it is a dangling symlink.
7520 $message = "installing '$fullfile'";
7522 # The license file should not be volatile.
7523 if ($file eq "COPYING")
7524 {
7525 $message .= " using GNU General Public License v3 file";
7526 $trailer2 = "\n Consider adding the COPYING file"
7527 . " to the version control system"
7528 . "\n for your code, to avoid questions"
7529 . " about which license your project uses";
7530 }
7532 # Windows Perl will hang if we try to delete a
7533 # file that doesn't exist.
7534 unlink ($fullfile) if -f $fullfile;
7535 if ($symlink_exists && ! $copy_missing)
7536 {
7537 if (! symlink ("$libdir/$file", $fullfile)
7538 || ! -e $fullfile)
7539 {
7540 $suppress = 0;
7541 $trailer = "; error while making link: $!";
7542 }
7543 }
7544 elsif (system ('cp', "$libdir/$file", $fullfile))
7545 {
7546 $suppress = 0;
7547 $trailer = "\n error while copying";
7548 }
7549 set_dir_cache_file ($dir, $file);
7550 }
7551 }
7552 else
7553 {
7554 $trailer = "\n 'automake --add-missing' can install '$file'"
7555 if -f "$libdir/$file";
7556 }
7558 # If --force-missing was specified, and we have
7559 # actually found the file, then do nothing.
7560 return
7561 if $found_it && $force_missing;
7563 # If we couldn't install the file, but it is a target in
7564 # the Makefile, don't print anything. This allows files
7565 # like README, AUTHORS, or THANKS to be generated.
7566 return
7567 if !$suppress && rule $file;
7569 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7570 }
7573 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7574 # ----------------------------------------------------------------------
7575 # Verify that the file must exist in $DIRECTORY, or install it.
7576 # $MYSTRICT is the strictness level at which this file becomes required.
7577 # Worker threads may queue up the action to be serialized by the master,
7578 # if $QUEUE is true
7579 sub require_file_internal ($$$@)
7580 {
7581 my ($where, $mystrict, $dir, $queue, @files) = @_;
7583 return
7584 unless $strictness >= $mystrict;
7586 foreach my $file (@files)
7587 {
7588 push_required_file ($dir, $file, "$dir/$file");
7589 if ($queue)
7590 {
7591 queue_required_file_check_or_copy ($required_conf_file_queue,
7592 QUEUE_CONF_FILE, $relative_dir,
7593 $where, $mystrict, @files);
7594 }
7595 else
7596 {
7597 required_file_check_or_copy ($where, $dir, $file);
7598 }
7599 }
7600 }
7602 # &require_file ($WHERE, $MYSTRICT, @FILES)
7603 # -----------------------------------------
7604 sub require_file ($$@)
7605 {
7606 my ($where, $mystrict, @files) = @_;
7607 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7608 }
7610 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7611 # -----------------------------------------------------------
7612 sub require_file_with_macro ($$$@)
7613 {
7614 my ($cond, $macro, $mystrict, @files) = @_;
7615 $macro = rvar ($macro) unless ref $macro;
7616 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7617 }
7619 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7620 # ----------------------------------------------------------------
7621 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7622 # must be in that directory. Otherwise expect it in the current directory.
7623 sub require_libsource_with_macro ($$$@)
7624 {
7625 my ($cond, $macro, $mystrict, @files) = @_;
7626 $macro = rvar ($macro) unless ref $macro;
7627 if ($config_libobj_dir)
7628 {
7629 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7630 $config_libobj_dir, 0, @files);
7631 }
7632 else
7633 {
7634 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7635 }
7636 }
7638 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7639 # $MYSTRICT, @FILES)
7640 # ---------------------------------------------------------------
7641 sub queue_required_file_check_or_copy ($$$$@)
7642 {
7643 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7644 my @serial_loc;
7645 if (ref $where)
7646 {
7647 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7648 }
7649 else
7650 {
7651 @serial_loc = (QUEUE_STRING, $where);
7652 }
7653 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7654 }
7656 # &require_queued_file_check_or_copy ($QUEUE)
7657 # -------------------------------------------
7658 sub require_queued_file_check_or_copy ($)
7659 {
7660 my ($queue) = @_;
7661 my $where;
7662 my $dir = $queue->dequeue ();
7663 my $loc_key = $queue->dequeue ();
7664 if ($loc_key eq QUEUE_LOCATION)
7665 {
7666 $where = Automake::Location::deserialize ($queue);
7667 }
7668 elsif ($loc_key eq QUEUE_STRING)
7669 {
7670 $where = $queue->dequeue ();
7671 }
7672 else
7673 {
7674 prog_error "unexpected key $loc_key";
7675 }
7676 my $mystrict = $queue->dequeue ();
7677 my $nfiles = $queue->dequeue ();
7678 my @files;
7679 push @files, $queue->dequeue ()
7680 foreach (1 .. $nfiles);
7681 return
7682 unless $strictness >= $mystrict;
7683 foreach my $file (@files)
7684 {
7685 required_file_check_or_copy ($where, $config_aux_dir, $file);
7686 }
7687 }
7689 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7690 # ----------------------------------------------
7691 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7692 sub require_conf_file ($$@)
7693 {
7694 my ($where, $mystrict, @files) = @_;
7695 my $queue = defined $required_conf_file_queue ? 1 : 0;
7696 require_file_internal ($where, $mystrict, $config_aux_dir,
7697 $queue, @files);
7698 }
7701 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7702 # ----------------------------------------------------------------
7703 sub require_conf_file_with_macro ($$$@)
7704 {
7705 my ($cond, $macro, $mystrict, @files) = @_;
7706 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7707 $mystrict, @files);
7708 }
7710 ################################################################
7712 # &require_build_directory ($DIRECTORY)
7713 # -------------------------------------
7714 # Emit rules to create $DIRECTORY if needed, and return
7715 # the file that any target requiring this directory should be made
7716 # dependent upon.
7717 # We don't want to emit the rule twice, and want to reuse it
7718 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7719 sub require_build_directory ($)
7720 {
7721 my $directory = shift;
7723 return $directory_map{$directory} if exists $directory_map{$directory};
7725 my $cdir = File::Spec->canonpath ($directory);
7727 if (exists $directory_map{$cdir})
7728 {
7729 my $stamp = $directory_map{$cdir};
7730 $directory_map{$directory} = $stamp;
7731 return $stamp;
7732 }
7734 my $dirstamp = "$cdir/\$(am__dirstamp)";
7736 $directory_map{$directory} = $dirstamp;
7737 $directory_map{$cdir} = $dirstamp;
7739 # Set a variable for the dirstamp basename.
7740 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7741 '$(am__leading_dot)dirstamp');
7743 # Directory must be removed by 'make distclean'.
7744 $clean_files{$dirstamp} = DIST_CLEAN;
7746 $output_rules .= ("$dirstamp:\n"
7747 . "\t\@\$(MKDIR_P) $directory\n"
7748 . "\t\@: > $dirstamp\n");
7750 return $dirstamp;
7751 }
7753 # &require_build_directory_maybe ($FILE)
7754 # --------------------------------------
7755 # If $FILE lies in a subdirectory, emit a rule to create this
7756 # directory and return the file that $FILE should be made
7757 # dependent upon. Otherwise, just return the empty string.
7758 sub require_build_directory_maybe ($)
7759 {
7760 my $file = shift;
7761 my $directory = dirname ($file);
7763 if ($directory ne '.')
7764 {
7765 return require_build_directory ($directory);
7766 }
7767 else
7768 {
7769 return '';
7770 }
7771 }
7773 ################################################################
7775 # Push a list of files onto dist_common.
7776 sub push_dist_common
7777 {
7778 prog_error "push_dist_common run after handle_dist"
7779 if $handle_dist_run;
7780 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7781 '', INTERNAL, VAR_PRETTY);
7782 }
7785 ################################################################
7787 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7788 # ----------------------------------------------
7789 # Generate a Makefile.in given the name of the corresponding Makefile and
7790 # the name of the file output by config.status.
7791 sub generate_makefile ($$)
7792 {
7793 my ($makefile_am, $makefile_in) = @_;
7795 # Reset all the Makefile.am related variables.
7796 initialize_per_input;
7798 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7799 # warnings for this file. So hold any warning issued before
7800 # we have processed AUTOMAKE_OPTIONS.
7801 buffer_messages ('warning');
7803 # $OUTPUT is encoded. If it contains a ":" then the first element
7804 # is the real output file, and all remaining elements are input
7805 # files. We don't scan or otherwise deal with these input files,
7806 # other than to mark them as dependencies. See
7807 # &scan_autoconf_files for details.
7808 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7810 $relative_dir = dirname ($makefile);
7812 read_main_am_file ($makefile_am, $makefile_in);
7813 if (handle_options)
7814 {
7815 # Process buffered warnings.
7816 flush_messages;
7817 # Fatal error. Just return, so we can continue with next file.
7818 return;
7819 }
7820 # Process buffered warnings.
7821 flush_messages;
7823 # There are a few install-related variables that you should not define.
7824 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7825 {
7826 my $v = var $var;
7827 if ($v)
7828 {
7829 my $def = $v->def (TRUE);
7830 prog_error "$var not defined in condition TRUE"
7831 unless $def;
7832 reject_var $var, "'$var' should not be defined"
7833 if $def->owner != VAR_AUTOMAKE;
7834 }
7835 }
7837 # Catch some obsolete variables.
7838 msg_var ('obsolete', 'INCLUDES',
7839 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7840 if var ('INCLUDES');
7842 # Must do this after reading .am file.
7843 define_variable ('subdir', $relative_dir, INTERNAL);
7845 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7846 # recursive rules are enabled.
7847 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7848 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7850 # Check first, because we might modify some state.
7851 check_gnu_standards;
7852 check_gnits_standards;
7854 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7855 handle_gettext;
7856 handle_libraries;
7857 handle_ltlibraries;
7858 handle_programs;
7859 handle_scripts;
7861 handle_silent;
7863 # These must be run after all the sources are scanned. They
7864 # use variables defined by &handle_libraries, &handle_ltlibraries,
7865 # or &handle_programs.
7866 handle_compile;
7867 handle_languages;
7868 handle_libtool;
7870 # Variables used by distdir.am and tags.am.
7871 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7872 if (! option 'no-dist')
7873 {
7874 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7875 }
7877 handle_texinfo;
7878 handle_emacs_lisp;
7879 handle_python;
7880 handle_java;
7881 handle_man_pages;
7882 handle_data;
7883 handle_headers;
7884 handle_subdirs;
7885 handle_user_recursion;
7886 handle_tags;
7887 handle_minor_options;
7888 # Must come after handle_programs so that %known_programs is up-to-date.
7889 handle_tests;
7891 # This must come after most other rules.
7892 handle_dist;
7894 handle_footer;
7895 do_check_merge_target;
7896 handle_all ($makefile);
7898 # FIXME: Gross!
7899 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7900 {
7901 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7902 }
7903 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7904 {
7905 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
7906 }
7908 handle_install;
7909 handle_clean ($makefile);
7910 handle_factored_dependencies;
7912 # Comes last, because all the above procedures may have
7913 # defined or overridden variables.
7914 $output_vars .= output_variables;
7916 check_typos;
7918 if ($exit_code != 0)
7919 {
7920 verb "not writing $makefile_in because of earlier errors";
7921 return;
7922 }
7924 my $am_relative_dir = dirname ($makefile_am);
7925 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
7927 # We make sure that 'all:' is the first target.
7928 my $output =
7929 "$output_vars$output_all$output_header$output_rules$output_trailer";
7931 # Decide whether we must update the output file or not.
7932 # We have to update in the following situations.
7933 # * $force_generation is set.
7934 # * any of the output dependencies is younger than the output
7935 # * the contents of the output is different (this can happen
7936 # if the project has been populated with a file listed in
7937 # @common_files since the last run).
7938 # Output's dependencies are split in two sets:
7939 # * dependencies which are also configure dependencies
7940 # These do not change between each Makefile.am
7941 # * other dependencies, specific to the Makefile.am being processed
7942 # (such as the Makefile.am itself, or any Makefile fragment
7943 # it includes).
7944 my $timestamp = mtime $makefile_in;
7945 if (! $force_generation
7946 && $configure_deps_greatest_timestamp < $timestamp
7947 && $output_deps_greatest_timestamp < $timestamp
7948 && $output eq contents ($makefile_in))
7949 {
7950 verb "$makefile_in unchanged";
7951 # No need to update.
7952 return;
7953 }
7955 if (-e $makefile_in)
7956 {
7957 unlink ($makefile_in)
7958 or fatal "cannot remove $makefile_in: $!";
7959 }
7961 my $gm_file = new Automake::XFile "> $makefile_in";
7962 verb "creating $makefile_in";
7963 print $gm_file $output;
7964 }
7966 ################################################################
7971 ################################################################
7973 # Helper function for usage().
7974 sub print_autodist_files (@)
7975 {
7976 my @lcomm = sort (&uniq (@_));
7978 my @four;
7979 format USAGE_FORMAT =
7980 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7981 $four[0], $four[1], $four[2], $four[3]
7982 .
7983 local $~ = "USAGE_FORMAT";
7985 my $cols = 4;
7986 my $rows = int(@lcomm / $cols);
7987 my $rest = @lcomm % $cols;
7989 if ($rest)
7990 {
7991 $rows++;
7992 }
7993 else
7994 {
7995 $rest = $cols;
7996 }
7998 for (my $y = 0; $y < $rows; $y++)
7999 {
8000 @four = ("", "", "", "");
8001 for (my $x = 0; $x < $cols; $x++)
8002 {
8003 last if $y + 1 == $rows && $x == $rest;
8005 my $idx = (($x > $rest)
8006 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8007 : ($rows * $x));
8009 $idx += $y;
8010 $four[$x] = $lcomm[$idx];
8011 }
8012 write;
8013 }
8014 }
8017 # Print usage information.
8018 sub usage ()
8019 {
8020 print "Usage: $0 [OPTION]... [Makefile]...
8022 Generate Makefile.in for configure from Makefile.am.
8024 Operation modes:
8025 --help print this help, then exit
8026 --version print version number, then exit
8027 -v, --verbose verbosely list files processed
8028 --no-force only update Makefile.in's that are out of date
8029 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8031 Dependency tracking:
8032 -i, --ignore-deps disable dependency tracking code
8033 --include-deps enable dependency tracking code
8035 Flavors:
8036 --foreign set strictness to foreign
8037 --gnits set strictness to gnits
8038 --gnu set strictness to gnu
8040 Library files:
8041 -a, --add-missing add missing standard files to package
8042 --libdir=DIR set directory storing library files
8043 --print-libdir print directory storing library files
8044 -c, --copy with -a, copy missing files (default is symlink)
8045 -f, --force-missing force update of standard files
8047 ";
8048 Automake::ChannelDefs::usage;
8050 print "\nFiles automatically distributed if found " .
8051 "(always):\n";
8052 print_autodist_files @common_files;
8053 print "\nFiles automatically distributed if found " .
8054 "(under certain conditions):\n";
8055 print_autodist_files @common_sometimes;
8057 print '
8058 Report bugs to <@PACKAGE_BUGREPORT@>.
8059 GNU Automake home page: <@PACKAGE_URL@>.
8060 General help using GNU software: <http://www.gnu.org/gethelp/>.
8061 ';
8063 # --help always returns 0 per GNU standards.
8064 exit 0;
8065 }
8068 # &version ()
8069 # -----------
8070 # Print version information
8071 sub version ()
8072 {
8073 print <<EOF;
8074 automake (GNU $PACKAGE) $VERSION
8075 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8076 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8077 This is free software: you are free to change and redistribute it.
8078 There is NO WARRANTY, to the extent permitted by law.
8080 Written by Tom Tromey <tromey\@redhat.com>
8081 and Alexandre Duret-Lutz <adl\@gnu.org>.
8082 EOF
8083 # --version always returns 0 per GNU standards.
8084 exit 0;
8085 }
8087 ################################################################
8089 # Parse command line.
8090 sub parse_arguments ()
8091 {
8092 my $strict = 'gnu';
8093 my $ignore_deps = 0;
8094 my @warnings = ();
8096 my %cli_options =
8097 (
8098 'version' => \&version,
8099 'help' => \&usage,
8100 'libdir=s' => \$libdir,
8101 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8102 'gnu' => sub { $strict = 'gnu'; },
8103 'gnits' => sub { $strict = 'gnits'; },
8104 'foreign' => sub { $strict = 'foreign'; },
8105 'include-deps' => sub { $ignore_deps = 0; },
8106 'i|ignore-deps' => sub { $ignore_deps = 1; },
8107 'no-force' => sub { $force_generation = 0; },
8108 'f|force-missing' => \$force_missing,
8109 'a|add-missing' => \$add_missing,
8110 'c|copy' => \$copy_missing,
8111 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8112 'W|warnings=s' => \@warnings,
8113 );
8115 use Automake::Getopt ();
8116 Automake::Getopt::parse_options %cli_options;
8118 set_strictness ($strict);
8119 my $cli_where = new Automake::Location;
8120 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8121 for my $warning (@warnings)
8122 {
8123 &parse_warnings ('-W', $warning);
8124 }
8126 return unless @ARGV;
8128 my $errspec = 0;
8129 foreach my $arg (@ARGV)
8130 {
8131 fatal ("empty argument\nTry '$0 --help' for more information")
8132 if ($arg eq '');
8134 # Handle $local:$input syntax.
8135 my ($local, @rest) = split (/:/, $arg);
8136 @rest = ("$local.in",) unless @rest;
8137 my $input = locate_am @rest;
8138 if ($input)
8139 {
8140 push @input_files, $input;
8141 $output_files{$input} = join (':', ($local, @rest));
8142 }
8143 else
8144 {
8145 error "no Automake input file found for '$arg'";
8146 $errspec = 1;
8147 }
8148 }
8149 fatal "no input file found among supplied arguments"
8150 if $errspec && ! @input_files;
8151 }
8154 # handle_makefile ($MAKEFILE_IN)
8155 # ------------------------------
8156 # Deal with $MAKEFILE_IN.
8157 sub handle_makefile ($)
8158 {
8159 my ($file) = @_;
8160 ($am_file = $file) =~ s/\.in$//;
8161 if (! -f ($am_file . '.am'))
8162 {
8163 error "'$am_file.am' does not exist";
8164 }
8165 else
8166 {
8167 # Any warning setting now local to this Makefile.am.
8168 dup_channel_setup;
8170 generate_makefile ($am_file . '.am', $file);
8172 # Back out any warning setting.
8173 drop_channel_setup;
8174 }
8175 }
8177 # handle_makefiles_serial ()
8178 # --------------------------
8179 # Deal with all makefiles, without threads.
8180 sub handle_makefiles_serial ()
8181 {
8182 foreach my $file (@input_files)
8183 {
8184 handle_makefile ($file);
8185 }
8186 }
8188 # get_number_of_threads ()
8189 # ------------------------
8190 # Logic for deciding how many worker threads to use.
8191 sub get_number_of_threads
8192 {
8193 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8195 $nthreads = 0
8196 unless $nthreads =~ /^[0-9]+$/;
8198 # It doesn't make sense to use more threads than makefiles,
8199 my $max_threads = @input_files;
8201 if ($nthreads > $max_threads)
8202 {
8203 $nthreads = $max_threads;
8204 }
8205 return $nthreads;
8206 }
8208 # handle_makefiles_threaded ($NTHREADS)
8209 # -------------------------------------
8210 # Deal with all makefiles, using threads. The general strategy is to
8211 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8212 # worker threads push back everything that needs serialization:
8213 # * warning and (normal) error messages, for stable stderr output
8214 # order and content (avoiding duplicates, for example),
8215 # * races when installing aux files (and respective messages),
8216 # * races when collecting aux files for distribution.
8217 #
8218 # The latter requires that the makefile that deals with the aux dir
8219 # files be handled last, done by the master thread.
8220 sub handle_makefiles_threaded ($)
8221 {
8222 my ($nthreads) = @_;
8224 # The file queue distributes all makefiles, the message queues
8225 # collect all serializations needed for respective files.
8226 my $file_queue = Thread::Queue->new;
8227 my %msg_queues;
8228 foreach my $file (@input_files)
8229 {
8230 $msg_queues{$file} = Thread::Queue->new;
8231 }
8233 verb "spawning $nthreads worker threads";
8234 my @threads = (1 .. $nthreads);
8235 foreach my $t (@threads)
8236 {
8237 $t = threads->new (sub
8238 {
8239 while (my $file = $file_queue->dequeue)
8240 {
8241 verb "handling $file";
8242 my $queue = $msg_queues{$file};
8243 setup_channel_queue ($queue, QUEUE_MESSAGE);
8244 $required_conf_file_queue = $queue;
8245 handle_makefile ($file);
8246 $queue->enqueue (undef);
8247 setup_channel_queue (undef, undef);
8248 $required_conf_file_queue = undef;
8249 }
8250 return $exit_code;
8251 });
8252 }
8254 # Queue all makefiles.
8255 verb "queuing " . @input_files . " input files";
8256 $file_queue->enqueue (@input_files, (undef) x @threads);
8258 # Collect and process serializations.
8259 foreach my $file (@input_files)
8260 {
8261 verb "dequeuing messages for " . $file;
8262 reset_local_duplicates ();
8263 my $queue = $msg_queues{$file};
8264 while (my $key = $queue->dequeue)
8265 {
8266 if ($key eq QUEUE_MESSAGE)
8267 {
8268 pop_channel_queue ($queue);
8269 }
8270 elsif ($key eq QUEUE_CONF_FILE)
8271 {
8272 require_queued_file_check_or_copy ($queue);
8273 }
8274 else
8275 {
8276 prog_error "unexpected key $key";
8277 }
8278 }
8279 }
8281 foreach my $t (@threads)
8282 {
8283 my @exit_thread = $t->join;
8284 $exit_code = $exit_thread[0]
8285 if ($exit_thread[0] > $exit_code);
8286 }
8287 }
8289 ################################################################
8291 # Parse the WARNINGS environment variable.
8292 parse_WARNINGS;
8294 # Parse command line.
8295 parse_arguments;
8297 $configure_ac = require_configure_ac;
8299 # Do configure.ac scan only once.
8300 scan_autoconf_files;
8302 if (! @input_files)
8303 {
8304 my $msg = '';
8305 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8306 if -f 'Makefile.am';
8307 fatal ("no 'Makefile.am' found for any configure output$msg");
8308 }
8310 my $nthreads = get_number_of_threads ();
8312 if ($perl_threads && $nthreads >= 1)
8313 {
8314 handle_makefiles_threaded ($nthreads);
8315 }
8316 else
8317 {
8318 handle_makefiles_serial ();
8319 }
8321 exit $exit_code;
8324 ### Setup "GNU" style for perl-mode and cperl-mode.
8325 ## Local Variables:
8326 ## perl-indent-level: 2
8327 ## perl-continued-statement-offset: 2
8328 ## perl-continued-brace-offset: 0
8329 ## perl-brace-offset: 0
8330 ## perl-brace-imaginary-offset: 0
8331 ## perl-label-offset: -2
8332 ## cperl-indent-level: 2
8333 ## cperl-brace-offset: 0
8334 ## cperl-continued-brace-offset: 0
8335 ## cperl-label-offset: -2
8336 ## cperl-extra-newline-before-brace: t
8337 ## cperl-merge-trailing-else: nil
8338 ## cperl-continued-statement-offset: 2
8339 ## End: