| blob | 08b33002a7eac67c011139256457ccb4a2ae5bb2 |
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, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
10 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free
11 # Software Foundation, Inc.
13 # This program is free software; you can redistribute it and/or modify
14 # it under the terms of the GNU General Public License as published by
15 # the Free Software Foundation; either version 2, or (at your option)
16 # any later version.
18 # This program is distributed in the hope that it will be useful,
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 # GNU General Public License for more details.
23 # You should have received a copy of the GNU General Public License
24 # along with this program. If not, see <http://www.gnu.org/licenses/>.
26 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
27 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
28 # Alexandre Duret-Lutz <adl@gnu.org>.
30 package Language;
32 BEGIN
33 {
34 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
35 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
37 # Override SHELL. This is required on DJGPP so that system() uses
38 # bash, not COMMAND.COM which doesn't quote arguments properly.
39 # Other systems aren't expected to use $SHELL when Automake
40 # runs, but it should be safe to drop the `if DJGPP' guard if
41 # it turns up other systems need the same thing. After all,
42 # if SHELL is used, ./configure's SHELL is always better than
43 # the user's SHELL (which may be something like tcsh).
44 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
45 }
47 use Automake::Struct;
48 struct (# Short name of the language (c, f77...).
49 'name' => "\$",
50 # Nice name of the language (C, Fortran 77...).
51 'Name' => "\$",
53 # List of configure variables which must be defined.
54 'config_vars' => '@',
56 'ansi' => "\$",
57 # `pure' is `1' or `'. A `pure' language is one where, if
58 # all the files in a directory are of that language, then we
59 # do not require the C compiler or any code to call it.
60 'pure' => "\$",
62 'autodep' => "\$",
64 # Name of the compiling variable (COMPILE).
65 'compiler' => "\$",
66 # Content of the compiling variable.
67 'compile' => "\$",
68 # Flag to require compilation without linking (-c).
69 'compile_flag' => "\$",
70 'extensions' => '@',
71 # A subroutine to compute a list of possible extensions of
72 # the product given the input extensions.
73 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
74 'output_extensions' => "\$",
75 # A list of flag variables used in 'compile'.
76 # (defaults to [])
77 'flags' => "@",
79 # Any tag to pass to libtool while compiling.
80 'libtool_tag' => "\$",
82 # The file to use when generating rules for this language.
83 # The default is 'depend2'.
84 'rule_file' => "\$",
86 # Name of the linking variable (LINK).
87 'linker' => "\$",
88 # Content of the linking variable.
89 'link' => "\$",
91 # Name of the compiler variable (CC).
92 'ccer' => "\$",
94 # Name of the linker variable (LD).
95 'lder' => "\$",
96 # Content of the linker variable ($(CC)).
97 'ld' => "\$",
99 # Flag to specify the output file (-o).
100 'output_flag' => "\$",
101 '_finish' => "\$",
103 # This is a subroutine which is called whenever we finally
104 # determine the context in which a source file will be
105 # compiled.
106 '_target_hook' => "\$",
108 # If TRUE, nodist_ sources will be compiled using specific rules
109 # (i.e. not inference rules). The default is FALSE.
110 'nodist_specific' => "\$");
113 sub finish ($)
114 {
115 my ($self) = @_;
116 if (defined $self->_finish)
117 {
118 &{$self->_finish} (@_);
119 }
120 }
122 sub target_hook ($$$$%)
123 {
124 my ($self) = @_;
125 if (defined $self->_target_hook)
126 {
127 &{$self->_target_hook} (@_);
128 }
129 }
131 package Automake;
133 use strict;
134 use Automake::Config;
135 BEGIN
136 {
137 if ($perl_threads)
138 {
139 require threads;
140 import threads;
141 require Thread::Queue;
142 import Thread::Queue;
143 }
144 }
145 use Automake::General;
146 use Automake::XFile;
147 use Automake::Channels;
148 use Automake::ChannelDefs;
149 use Automake::Configure_ac;
150 use Automake::FileUtils;
151 use Automake::Location;
152 use Automake::Condition qw/TRUE FALSE/;
153 use Automake::DisjConditions;
154 use Automake::Options;
155 use Automake::Version;
156 use Automake::Variable;
157 use Automake::VarDef;
158 use Automake::Rule;
159 use Automake::RuleDef;
160 use Automake::Wrap 'makefile_wrap';
161 use File::Basename;
162 use File::Spec;
163 use Carp;
165 ## ----------- ##
166 ## Constants. ##
167 ## ----------- ##
169 # Some regular expressions. One reason to put them here is that it
170 # makes indentation work better in Emacs.
172 # Writing singled-quoted-$-terminated regexes is a pain because
173 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
174 # by a closing quote. Letting perl-mode think the quote is not closed
175 # leads to all sort of misindentations. On the other hand, defining
176 # regexes as double-quoted strings is far less readable. So usually
177 # we will write:
178 #
179 # $REGEX = '^regex_value' . "\$";
181 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
182 my $WHITE_PATTERN = '^\s*' . "\$";
183 my $COMMENT_PATTERN = '^#';
184 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
185 # A rule has three parts: a list of targets, a list of dependencies,
186 # and optionally actions.
187 my $RULE_PATTERN =
188 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
190 # Only recognize leading spaces, not leading tabs. If we recognize
191 # leading tabs here then we need to make the reader smarter, because
192 # otherwise it will think rules like `foo=bar; \' are errors.
193 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
194 # This pattern recognizes a Gnits version id and sets $1 if the
195 # release is an alpha release. We also allow a suffix which can be
196 # used to extend the version number with a "fork" identifier.
197 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
199 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
200 my $ELSE_PATTERN =
201 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
202 my $ENDIF_PATTERN =
203 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
204 my $PATH_PATTERN = '(\w|[+/.-])+';
205 # This will pass through anything not of the prescribed form.
206 my $INCLUDE_PATTERN = ('^include\s+'
207 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
208 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
209 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
211 # Match `-d' as a command-line argument in a string.
212 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
213 # Directories installed during 'install-exec' phase.
214 my $EXEC_DIR_PATTERN =
215 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
217 # Values for AC_CANONICAL_*
218 use constant AC_CANONICAL_BUILD => 1;
219 use constant AC_CANONICAL_HOST => 2;
220 use constant AC_CANONICAL_TARGET => 3;
222 # Values indicating when something should be cleaned.
223 use constant MOSTLY_CLEAN => 0;
224 use constant CLEAN => 1;
225 use constant DIST_CLEAN => 2;
226 use constant MAINTAINER_CLEAN => 3;
228 # Libtool files.
229 my @libtool_files = qw(ltmain.sh config.guess config.sub);
230 # ltconfig appears here for compatibility with old versions of libtool.
231 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
233 # Commonly found files we look for and automatically include in
234 # DISTFILES.
235 my @common_files =
236 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
237 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
238 ansi2knr.1 ansi2knr.c ar-lib compile config.guess config.rpath
239 config.sub depcomp elisp-comp install-sh libversion.in mdate-sh
240 missing mkinstalldirs py-compile texinfo.tex ylwrap),
241 @libtool_files, @libtool_sometimes);
243 # Commonly used files we auto-include, but only sometimes. This list
244 # is used for the --help output only.
245 my @common_sometimes =
246 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
247 configure.ac configure.in stamp-vti);
249 # Standard directories from the GNU Coding Standards, and additional
250 # pkg* directories from Automake. Stored in a hash for fast member check.
251 my %standard_prefix =
252 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
253 lib libexec lisp locale localstate man man1 man2
254 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
255 pkgdata pkginclude pkglib pkglibexec ps sbin
256 sharedstate sysconf));
258 # Copyright on generated Makefile.ins.
259 my $gen_copyright = "\
260 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
261 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
262 # Foundation, Inc.
263 # This Makefile.in is free software; the Free Software Foundation
264 # gives unlimited permission to copy and/or distribute it,
265 # with or without modifications, as long as this notice is preserved.
267 # This program is distributed in the hope that it will be useful,
268 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
269 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
270 # PARTICULAR PURPOSE.
271 ";
273 # These constants are returned by the lang_*_rewrite functions.
274 # LANG_SUBDIR means that the resulting object file should be in a
275 # subdir if the source file is. In this case the file name cannot
276 # have `..' components.
277 use constant LANG_IGNORE => 0;
278 use constant LANG_PROCESS => 1;
279 use constant LANG_SUBDIR => 2;
281 # These are used when keeping track of whether an object can be built
282 # by two different paths.
283 use constant COMPILE_LIBTOOL => 1;
284 use constant COMPILE_ORDINARY => 2;
286 # We can't always associate a location to a variable or a rule,
287 # when it's defined by Automake. We use INTERNAL in this case.
288 use constant INTERNAL => new Automake::Location;
290 # Serialization keys for message queues.
291 use constant QUEUE_MESSAGE => "msg";
292 use constant QUEUE_CONF_FILE => "conf file";
293 use constant QUEUE_LOCATION => "location";
294 use constant QUEUE_STRING => "string";
295 \f
297 ## ---------------------------------- ##
298 ## Variables related to the options. ##
299 ## ---------------------------------- ##
301 # TRUE if we should always generate Makefile.in.
302 my $force_generation = 1;
304 # From the Perl manual.
305 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
307 # TRUE if missing standard files should be installed.
308 my $add_missing = 0;
310 # TRUE if we should copy missing files; otherwise symlink if possible.
311 my $copy_missing = 0;
313 # TRUE if we should always update files that we know about.
314 my $force_missing = 0;
317 ## ---------------------------------------- ##
318 ## Variables filled during files scanning. ##
319 ## ---------------------------------------- ##
321 # Name of the configure.ac file.
322 my $configure_ac;
324 # Files found by scanning configure.ac for LIBOBJS.
325 my %libsources = ();
327 # Names used in AC_CONFIG_HEADER call.
328 my @config_headers = ();
330 # Names used in AC_CONFIG_LINKS call.
331 my @config_links = ();
333 # Directory where output files go. Actually, output files are
334 # relative to this directory.
335 my $output_directory;
337 # List of Makefile.am's to process, and their corresponding outputs.
338 my @input_files = ();
339 my %output_files = ();
341 # Complete list of Makefile.am's that exist.
342 my @configure_input_files = ();
344 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
345 # and their outputs.
346 my @other_input_files = ();
347 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
348 # The keys are the files created by these macros.
349 my %ac_config_files_location = ();
350 # The condition under which AC_CONFIG_FOOS appears.
351 my %ac_config_files_condition = ();
353 # Directory to search for configure-required files. This
354 # will be computed by &locate_aux_dir and can be set using
355 # AC_CONFIG_AUX_DIR in configure.ac.
356 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
357 my $config_aux_dir = '';
358 my $config_aux_dir_set_in_configure_ac = 0;
359 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
360 # in Makefiles.
361 my $am_config_aux_dir = '';
363 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
364 # in configure.ac.
365 my $config_libobj_dir = '';
367 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
368 my $seen_gettext = 0;
369 # Whether AM_GNU_GETTEXT([external]) is used.
370 my $seen_gettext_external = 0;
371 # Where AM_GNU_GETTEXT appears.
372 my $ac_gettext_location;
373 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
374 my $seen_gettext_intl = 0;
376 # Lists of tags supported by Libtool.
377 my %libtool_tags = ();
378 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
379 # uses AC_REQUIRE_AUX_FILE.
380 my $libtool_new_api = 0;
382 # Most important AC_CANONICAL_* macro seen so far.
383 my $seen_canonical = 0;
384 # Location of that macro.
385 my $canonical_location;
387 # Where AM_MAINTAINER_MODE appears.
388 my $seen_maint_mode;
390 # Actual version we've seen.
391 my $package_version = '';
393 # Where version is defined.
394 my $package_version_location;
396 # TRUE if we've seen AM_ENABLE_MULTILIB.
397 my $seen_multilib = 0;
399 # TRUE if we've seen AM_PROG_AR
400 my $seen_ar = 0;
402 # TRUE if we've seen AM_PROG_CC_C_O
403 my $seen_cc_c_o = 0;
405 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
406 my %required_aux_file = ();
408 # Where AM_INIT_AUTOMAKE is called;
409 my $seen_init_automake = 0;
411 # TRUE if we've seen AM_AUTOMAKE_VERSION.
412 my $seen_automake_version = 0;
414 # Hash table of discovered configure substitutions. Keys are names,
415 # values are `FILE:LINE' strings which are used by error message
416 # generation.
417 my %configure_vars = ();
419 # Ignored configure substitutions (i.e., variables not to be output in
420 # Makefile.in)
421 my %ignored_configure_vars = ();
423 # Files included by $configure_ac.
424 my @configure_deps = ();
426 # Greatest timestamp of configure's dependencies.
427 my $configure_deps_greatest_timestamp = 0;
429 # Hash table of AM_CONDITIONAL variables seen in configure.
430 my %configure_cond = ();
432 # This maps extensions onto language names.
433 my %extension_map = ();
435 # List of the DIST_COMMON files we discovered while reading
436 # configure.in
437 my $configure_dist_common = '';
439 # This maps languages names onto objects.
440 my %languages = ();
441 # Maps each linker variable onto a language object.
442 my %link_languages = ();
444 # maps extensions to needed source flags.
445 my %sourceflags = ();
447 # List of targets we must always output.
448 # FIXME: Complete, and remove falsely required targets.
449 my %required_targets =
450 (
451 'all' => 1,
452 'dvi' => 1,
453 'pdf' => 1,
454 'ps' => 1,
455 'info' => 1,
456 'install-info' => 1,
457 'install' => 1,
458 'install-data' => 1,
459 'install-exec' => 1,
460 'uninstall' => 1,
462 # FIXME: Not required, temporary hacks.
463 # Well, actually they are sort of required: the -recursive
464 # targets will run them anyway...
465 'html-am' => 1,
466 'dvi-am' => 1,
467 'pdf-am' => 1,
468 'ps-am' => 1,
469 'info-am' => 1,
470 'install-data-am' => 1,
471 'install-exec-am' => 1,
472 'install-html-am' => 1,
473 'install-dvi-am' => 1,
474 'install-pdf-am' => 1,
475 'install-ps-am' => 1,
476 'install-info-am' => 1,
477 'installcheck-am' => 1,
478 'uninstall-am' => 1,
480 'install-man' => 1,
481 );
483 # Set to 1 if this run will create the Makefile.in that distributes
484 # the files in config_aux_dir.
485 my $automake_will_process_aux_dir = 0;
487 # The name of the Makefile currently being processed.
488 my $am_file = 'BUG';
489 \f
491 ################################################################
493 ## ------------------------------------------ ##
494 ## Variables reset by &initialize_per_input. ##
495 ## ------------------------------------------ ##
497 # Basename and relative dir of the input file.
498 my $am_file_name;
499 my $am_relative_dir;
501 # Same but wrt Makefile.in.
502 my $in_file_name;
503 my $relative_dir;
505 # Relative path to the top directory.
506 my $topsrcdir;
508 # Greatest timestamp of the output's dependencies (excluding
509 # configure's dependencies).
510 my $output_deps_greatest_timestamp;
512 # These variables are used when generating each Makefile.in.
513 # They hold the Makefile.in until it is ready to be printed.
514 my $output_vars;
515 my $output_all;
516 my $output_header;
517 my $output_rules;
518 my $output_trailer;
520 # This is the conditional stack, updated on if/else/endif, and
521 # used to build Condition objects.
522 my @cond_stack;
524 # This holds the set of included files.
525 my @include_stack;
527 # List of dependencies for the obvious targets.
528 my @all;
529 my @check;
530 my @check_tests;
532 # Keys in this hash table are files to delete. The associated
533 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
534 my %clean_files;
536 # Keys in this hash table are object files or other files in
537 # subdirectories which need to be removed. This only holds files
538 # which are created by compilations. The value in the hash indicates
539 # when the file should be removed.
540 my %compile_clean_files;
542 # Keys in this hash table are directories where we expect to build a
543 # libtool object. We use this information to decide what directories
544 # to delete.
545 my %libtool_clean_directories;
547 # Value of `$(SOURCES)', used by tags.am.
548 my @sources;
549 # Sources which go in the distribution.
550 my @dist_sources;
552 # This hash maps object file names onto their corresponding source
553 # file names. This is used to ensure that each object is created
554 # by a single source file.
555 my %object_map;
557 # This hash maps object file names onto an integer value representing
558 # whether this object has been built via ordinary compilation or
559 # libtool compilation (the COMPILE_* constants).
560 my %object_compilation_map;
563 # This keeps track of the directories for which we've already
564 # created dirstamp code. Keys are directories, values are stamp files.
565 # Several keys can share the same stamp files if they are equivalent
566 # (as are `.//foo' and `foo').
567 my %directory_map;
569 # All .P files.
570 my %dep_files;
572 # This is a list of all targets to run during "make dist".
573 my @dist_targets;
575 # Keep track of all programs declared in this Makefile, without
576 # $(EXEEXT). @substitutions@ are not listed.
577 my %known_programs;
578 my %known_libraries;
580 # Keys in this hash are the basenames of files which must depend on
581 # ansi2knr. Values are either the empty string, or the directory in
582 # which the ANSI source file appears; the directory must have a
583 # trailing `/'.
584 my %de_ansi_files;
586 # This keeps track of which extensions we've seen (that we care
587 # about).
588 my %extension_seen;
590 # This is random scratch space for the language finish functions.
591 # Don't randomly overwrite it; examine other uses of keys first.
592 my %language_scratch;
594 # We keep track of which objects need special (per-executable)
595 # handling on a per-language basis.
596 my %lang_specific_files;
598 # This is set when `handle_dist' has finished. Once this happens,
599 # we should no longer push on dist_common.
600 my $handle_dist_run;
602 # Used to store a set of linkers needed to generate the sources currently
603 # under consideration.
604 my %linkers_used;
606 # True if we need `LINK' defined. This is a hack.
607 my $need_link;
609 # Was get_object_extension run?
610 # FIXME: This is a hack. a better switch should be found.
611 my $get_object_extension_was_run;
613 # Record each file processed by make_paragraphs.
614 my %transformed_files;
615 \f
617 ################################################################
619 ## ---------------------------------------------- ##
620 ## Variables not reset by &initialize_per_input. ##
621 ## ---------------------------------------------- ##
623 # Cache each file processed by make_paragraphs.
624 # (This is different from %transformed_files because
625 # %transformed_files is reset for each file while %am_file_cache
626 # it global to the run.)
627 my %am_file_cache;
629 ################################################################
631 # var_SUFFIXES_trigger ($TYPE, $VALUE)
632 # ------------------------------------
633 # This is called by Automake::Variable::define() when SUFFIXES
634 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
635 # The work here needs to be performed as a side-effect of the
636 # macro_define() call because SUFFIXES definitions impact
637 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
638 # the input am file.
639 sub var_SUFFIXES_trigger ($$)
640 {
641 my ($type, $value) = @_;
642 accept_extensions (split (' ', $value));
643 }
644 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
646 ################################################################
648 ## --------------------------------- ##
649 ## Forward subroutine declarations. ##
650 ## --------------------------------- ##
651 sub register_language (%);
652 sub file_contents_internal ($$$%);
653 sub define_files_variable ($\@$$);
656 # &initialize_per_input ()
657 # ------------------------
658 # (Re)-Initialize per-Makefile.am variables.
659 sub initialize_per_input ()
660 {
661 reset_local_duplicates ();
663 $am_file_name = undef;
664 $am_relative_dir = undef;
666 $in_file_name = undef;
667 $relative_dir = undef;
668 $topsrcdir = undef;
670 $output_deps_greatest_timestamp = 0;
672 $output_vars = '';
673 $output_all = '';
674 $output_header = '';
675 $output_rules = '';
676 $output_trailer = '';
678 Automake::Options::reset;
679 Automake::Variable::reset;
680 Automake::Rule::reset;
682 @cond_stack = ();
684 @include_stack = ();
686 @all = ();
687 @check = ();
688 @check_tests = ();
690 %clean_files = ();
691 %compile_clean_files = ();
693 # We always include `.'. This isn't strictly correct.
694 %libtool_clean_directories = ('.' => 1);
696 @sources = ();
697 @dist_sources = ();
699 %object_map = ();
700 %object_compilation_map = ();
702 %directory_map = ();
704 %dep_files = ();
706 @dist_targets = ();
708 %known_programs = ();
709 %known_libraries= ();
711 %de_ansi_files = ();
713 %extension_seen = ();
715 %language_scratch = ();
717 %lang_specific_files = ();
719 $handle_dist_run = 0;
721 $need_link = 0;
723 $get_object_extension_was_run = 0;
725 %transformed_files = ();
726 }
729 ################################################################
731 # Initialize our list of languages that are internally supported.
733 # C.
734 register_language ('name' => 'c',
735 'Name' => 'C',
736 'config_vars' => ['CC'],
737 'ansi' => 1,
738 'autodep' => '',
739 'flags' => ['CFLAGS', 'CPPFLAGS'],
740 'ccer' => 'CC',
741 'compiler' => 'COMPILE',
742 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
743 'lder' => 'CCLD',
744 'ld' => '$(CC)',
745 'linker' => 'LINK',
746 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
747 'compile_flag' => '-c',
748 'libtool_tag' => 'CC',
749 'extensions' => ['.c'],
750 '_finish' => \&lang_c_finish);
752 # C++.
753 register_language ('name' => 'cxx',
754 'Name' => 'C++',
755 'config_vars' => ['CXX'],
756 'linker' => 'CXXLINK',
757 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
758 'autodep' => 'CXX',
759 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
760 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
761 'ccer' => 'CXX',
762 'compiler' => 'CXXCOMPILE',
763 'compile_flag' => '-c',
764 'output_flag' => '-o',
765 'libtool_tag' => 'CXX',
766 'lder' => 'CXXLD',
767 'ld' => '$(CXX)',
768 'pure' => 1,
769 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
771 # Objective C.
772 register_language ('name' => 'objc',
773 'Name' => 'Objective C',
774 'config_vars' => ['OBJC'],
775 'linker' => 'OBJCLINK',
776 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
777 'autodep' => 'OBJC',
778 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
779 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
780 'ccer' => 'OBJC',
781 'compiler' => 'OBJCCOMPILE',
782 'compile_flag' => '-c',
783 'output_flag' => '-o',
784 'lder' => 'OBJCLD',
785 'ld' => '$(OBJC)',
786 'pure' => 1,
787 'extensions' => ['.m']);
789 # Unified Parallel C.
790 register_language ('name' => 'upc',
791 'Name' => 'Unified Parallel C',
792 'config_vars' => ['UPC'],
793 'linker' => 'UPCLINK',
794 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
795 'autodep' => 'UPC',
796 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
797 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
798 'ccer' => 'UPC',
799 'compiler' => 'UPCCOMPILE',
800 'compile_flag' => '-c',
801 'output_flag' => '-o',
802 'lder' => 'UPCLD',
803 'ld' => '$(UPC)',
804 'pure' => 1,
805 'extensions' => ['.upc']);
807 # Headers.
808 register_language ('name' => 'header',
809 'Name' => 'Header',
810 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
811 '.hpp', '.inc'],
812 # No output.
813 'output_extensions' => sub { return () },
814 # Nothing to do.
815 '_finish' => sub { });
817 # Vala
818 register_language ('name' => 'vala',
819 'Name' => 'Vala',
820 'config_vars' => ['VALAC'],
821 'flags' => [],
822 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
823 'ccer' => 'VALAC',
824 'compiler' => 'VALACOMPILE',
825 'extensions' => ['.vala'],
826 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
827 return ($ext,) },
828 'rule_file' => 'vala',
829 '_finish' => \&lang_vala_finish,
830 '_target_hook' => \&lang_vala_target_hook,
831 'nodist_specific' => 1);
833 # Yacc (C & C++).
834 register_language ('name' => 'yacc',
835 'Name' => 'Yacc',
836 'config_vars' => ['YACC'],
837 'flags' => ['YFLAGS'],
838 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
839 'ccer' => 'YACC',
840 'compiler' => 'YACCCOMPILE',
841 'extensions' => ['.y'],
842 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
843 return ($ext,) },
844 'rule_file' => 'yacc',
845 '_finish' => \&lang_yacc_finish,
846 '_target_hook' => \&lang_yacc_target_hook,
847 'nodist_specific' => 1);
848 register_language ('name' => 'yaccxx',
849 'Name' => 'Yacc (C++)',
850 'config_vars' => ['YACC'],
851 'rule_file' => 'yacc',
852 'flags' => ['YFLAGS'],
853 'ccer' => 'YACC',
854 'compiler' => 'YACCCOMPILE',
855 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
856 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
857 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
858 return ($ext,) },
859 '_finish' => \&lang_yacc_finish,
860 '_target_hook' => \&lang_yacc_target_hook,
861 'nodist_specific' => 1);
863 # Lex (C & C++).
864 register_language ('name' => 'lex',
865 'Name' => 'Lex',
866 'config_vars' => ['LEX'],
867 'rule_file' => 'lex',
868 'flags' => ['LFLAGS'],
869 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
870 'ccer' => 'LEX',
871 'compiler' => 'LEXCOMPILE',
872 'extensions' => ['.l'],
873 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
874 return ($ext,) },
875 '_finish' => \&lang_lex_finish,
876 '_target_hook' => \&lang_lex_target_hook,
877 'nodist_specific' => 1);
878 register_language ('name' => 'lexxx',
879 'Name' => 'Lex (C++)',
880 'config_vars' => ['LEX'],
881 'rule_file' => 'lex',
882 'flags' => ['LFLAGS'],
883 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
884 'ccer' => 'LEX',
885 'compiler' => 'LEXCOMPILE',
886 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
887 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
888 return ($ext,) },
889 '_finish' => \&lang_lex_finish,
890 '_target_hook' => \&lang_lex_target_hook,
891 'nodist_specific' => 1);
893 # Assembler.
894 register_language ('name' => 'asm',
895 'Name' => 'Assembler',
896 'config_vars' => ['CCAS', 'CCASFLAGS'],
898 'flags' => ['CCASFLAGS'],
899 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
900 # or anything else required. They can also set CCAS.
901 # Or simply use Preprocessed Assembler.
902 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
903 'ccer' => 'CCAS',
904 'compiler' => 'CCASCOMPILE',
905 'compile_flag' => '-c',
906 'output_flag' => '-o',
907 'extensions' => ['.s'],
909 # With assembly we still use the C linker.
910 '_finish' => \&lang_c_finish);
912 # Preprocessed Assembler.
913 register_language ('name' => 'cppasm',
914 'Name' => 'Preprocessed Assembler',
915 'config_vars' => ['CCAS', 'CCASFLAGS'],
917 'autodep' => 'CCAS',
918 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
919 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
920 'ccer' => 'CPPAS',
921 'compiler' => 'CPPASCOMPILE',
922 'compile_flag' => '-c',
923 'output_flag' => '-o',
924 'extensions' => ['.S', '.sx'],
926 # With assembly we still use the C linker.
927 '_finish' => \&lang_c_finish);
929 # Fortran 77
930 register_language ('name' => 'f77',
931 'Name' => 'Fortran 77',
932 'config_vars' => ['F77'],
933 'linker' => 'F77LINK',
934 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
935 'flags' => ['FFLAGS'],
936 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
937 'ccer' => 'F77',
938 'compiler' => 'F77COMPILE',
939 'compile_flag' => '-c',
940 'output_flag' => '-o',
941 'libtool_tag' => 'F77',
942 'lder' => 'F77LD',
943 'ld' => '$(F77)',
944 'pure' => 1,
945 'extensions' => ['.f', '.for']);
947 # Fortran
948 register_language ('name' => 'fc',
949 'Name' => 'Fortran',
950 'config_vars' => ['FC'],
951 'linker' => 'FCLINK',
952 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
953 'flags' => ['FCFLAGS'],
954 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
955 'ccer' => 'FC',
956 'compiler' => 'FCCOMPILE',
957 'compile_flag' => '-c',
958 'output_flag' => '-o',
959 'libtool_tag' => 'FC',
960 'lder' => 'FCLD',
961 'ld' => '$(FC)',
962 'pure' => 1,
963 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
965 # Preprocessed Fortran
966 register_language ('name' => 'ppfc',
967 'Name' => 'Preprocessed Fortran',
968 'config_vars' => ['FC'],
969 'linker' => 'FCLINK',
970 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
971 'lder' => 'FCLD',
972 'ld' => '$(FC)',
973 'flags' => ['FCFLAGS', 'CPPFLAGS'],
974 'ccer' => 'PPFC',
975 'compiler' => 'PPFCCOMPILE',
976 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
977 'compile_flag' => '-c',
978 'output_flag' => '-o',
979 'libtool_tag' => 'FC',
980 'pure' => 1,
981 'extensions' => ['.F90','.F95', '.F03', '.F08']);
983 # Preprocessed Fortran 77
984 #
985 # The current support for preprocessing Fortran 77 just involves
986 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
987 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
988 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
989 # for `make' Version 3.76 Beta' (specifically, from info file
990 # `(make)Catalogue of Rules').
991 #
992 # A better approach would be to write an Autoconf test
993 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
994 # Fortran 77 compilers know how to do preprocessing. The Autoconf
995 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
996 # preprocessing capabilities, and then fall back on cpp (if cpp were
997 # available).
998 register_language ('name' => 'ppf77',
999 'Name' => 'Preprocessed Fortran 77',
1000 'config_vars' => ['F77'],
1001 'linker' => 'F77LINK',
1002 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1003 'lder' => 'F77LD',
1004 'ld' => '$(F77)',
1005 'flags' => ['FFLAGS', 'CPPFLAGS'],
1006 'ccer' => 'PPF77',
1007 'compiler' => 'PPF77COMPILE',
1008 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
1009 'compile_flag' => '-c',
1010 'output_flag' => '-o',
1011 'libtool_tag' => 'F77',
1012 'pure' => 1,
1013 'extensions' => ['.F']);
1015 # Ratfor.
1016 register_language ('name' => 'ratfor',
1017 'Name' => 'Ratfor',
1018 'config_vars' => ['F77'],
1019 'linker' => 'F77LINK',
1020 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1021 'lder' => 'F77LD',
1022 'ld' => '$(F77)',
1023 'flags' => ['RFLAGS', 'FFLAGS'],
1024 # FIXME also FFLAGS.
1025 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1026 'ccer' => 'F77',
1027 'compiler' => 'RCOMPILE',
1028 'compile_flag' => '-c',
1029 'output_flag' => '-o',
1030 'libtool_tag' => 'F77',
1031 'pure' => 1,
1032 'extensions' => ['.r']);
1034 # Java via gcj.
1035 register_language ('name' => 'java',
1036 'Name' => 'Java',
1037 'config_vars' => ['GCJ'],
1038 'linker' => 'GCJLINK',
1039 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1040 'autodep' => 'GCJ',
1041 'flags' => ['GCJFLAGS'],
1042 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1043 'ccer' => 'GCJ',
1044 'compiler' => 'GCJCOMPILE',
1045 'compile_flag' => '-c',
1046 'output_flag' => '-o',
1047 'libtool_tag' => 'GCJ',
1048 'lder' => 'GCJLD',
1049 'ld' => '$(GCJ)',
1050 'pure' => 1,
1051 'extensions' => ['.java', '.class', '.zip', '.jar']);
1053 ################################################################
1055 # Error reporting functions.
1057 # err_am ($MESSAGE, [%OPTIONS])
1058 # -----------------------------
1059 # Uncategorized errors about the current Makefile.am.
1060 sub err_am ($;%)
1061 {
1062 msg_am ('error', @_);
1063 }
1065 # err_ac ($MESSAGE, [%OPTIONS])
1066 # -----------------------------
1067 # Uncategorized errors about configure.ac.
1068 sub err_ac ($;%)
1069 {
1070 msg_ac ('error', @_);
1071 }
1073 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1074 # ---------------------------------------
1075 # Messages about about the current Makefile.am.
1076 sub msg_am ($$;%)
1077 {
1078 my ($channel, $msg, %opts) = @_;
1079 msg $channel, "${am_file}.am", $msg, %opts;
1080 }
1082 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1083 # ---------------------------------------
1084 # Messages about about configure.ac.
1085 sub msg_ac ($$;%)
1086 {
1087 my ($channel, $msg, %opts) = @_;
1088 msg $channel, $configure_ac, $msg, %opts;
1089 }
1091 ################################################################
1093 # subst ($TEXT)
1094 # -------------
1095 # Return a configure-style substitution using the indicated text.
1096 # We do this to avoid having the substitutions directly in automake.in;
1097 # when we do that they are sometimes removed and this causes confusion
1098 # and bugs.
1099 sub subst ($)
1100 {
1101 my ($text) = @_;
1102 return '@' . $text . '@';
1103 }
1105 ################################################################
1108 # $BACKPATH
1109 # &backname ($REL-DIR)
1110 # --------------------
1111 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1112 # For instance `src/foo' => `../..'.
1113 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1114 sub backname ($)
1115 {
1116 my ($file) = @_;
1117 my @res;
1118 foreach (split (/\//, $file))
1119 {
1120 next if $_ eq '.' || $_ eq '';
1121 if ($_ eq '..')
1122 {
1123 pop @res
1124 or prog_error ("trying to reverse path `$file' pointing outside tree");
1125 }
1126 else
1127 {
1128 push (@res, '..');
1129 }
1130 }
1131 return join ('/', @res) || '.';
1132 }
1134 ################################################################
1136 # `silent-rules' mode handling functions.
1138 # verbose_var (NAME)
1139 # ------------------
1140 # The public variable stem used to implement `silent-rules'.
1141 sub verbose_var ($)
1142 {
1143 my ($name) = @_;
1144 return 'AM_V_' . $name;
1145 }
1147 # verbose_private_var (NAME)
1148 # --------------------------
1149 # The naming policy for the private variables for `silent-rules'.
1150 sub verbose_private_var ($)
1151 {
1152 my ($name) = @_;
1153 return 'am__v_' . $name;
1154 }
1156 # define_verbose_var (NAME, VAL)
1157 # ------------------------------
1158 # For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1159 sub define_verbose_var ($$)
1160 {
1161 my ($name, $val) = @_;
1162 my $var = verbose_var ($name);
1163 my $pvar = verbose_private_var ($name);
1164 my $silent_var = $pvar . '_0';
1165 if (option 'silent-rules')
1166 {
1167 # For typical `make's, `configure' replaces AM_V (inside @@) with $(V)
1168 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1169 # For strict POSIX 2008 `make's, it replaces them with 0 or 1 instead.
1170 # See AM_SILENT_RULES in m4/silent.m4.
1171 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1172 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)', INTERNAL);
1173 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1174 '', INTERNAL, VAR_ASIS)
1175 if (! vardef ($silent_var, TRUE));
1176 }
1177 }
1179 # Above should not be needed in the general automake code.
1181 # verbose_flag (NAME)
1182 # -------------------
1183 # Contents of %VERBOSE%: variable to expand before rule command.
1184 sub verbose_flag ($)
1185 {
1186 my ($name) = @_;
1187 return '$(' . verbose_var ($name) . ')'
1188 if (option 'silent-rules');
1189 return '';
1190 }
1192 sub verbose_nodep_flag ($)
1193 {
1194 my ($name) = @_;
1195 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1196 if (option 'silent-rules');
1197 return '';
1198 }
1200 # silent_flag
1201 # -----------
1202 # Contents of %SILENT%: variable to expand to `@' when silent.
1203 sub silent_flag ()
1204 {
1205 return verbose_flag ('at');
1206 }
1208 # define_verbose_tagvar (NAME)
1209 # ----------------------------
1210 # Engage the needed `silent-rules' machinery for tag NAME.
1211 sub define_verbose_tagvar ($)
1212 {
1213 my ($name) = @_;
1214 if (option 'silent-rules')
1215 {
1216 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1217 define_verbose_var ('at', '@');
1218 }
1219 }
1221 # define_verbose_libtool
1222 # ----------------------
1223 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1224 sub define_verbose_libtool ()
1225 {
1226 define_verbose_var ('lt', '--silent');
1227 return verbose_flag ('lt');
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 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1246 location => 1))
1247 {
1248 my ($loc, $value) = @$locvals;
1249 return 1 if (process_option_list ($loc, $value))
1250 }
1251 }
1253 # Override portability-recursive warning.
1254 switch_warning ('no-portability-recursive')
1255 if option 'silent-rules';
1257 if ($strictness == GNITS)
1258 {
1259 set_option ('readme-alpha', INTERNAL);
1260 set_option ('std-options', INTERNAL);
1261 set_option ('check-news', INTERNAL);
1262 }
1264 return 0;
1265 }
1267 # shadow_unconditionally ($varname, $where)
1268 # -----------------------------------------
1269 # Return a $(variable) that contains all possible values
1270 # $varname can take.
1271 # If the VAR wasn't defined conditionally, return $(VAR).
1272 # Otherwise we create an am__VAR_DIST variable which contains
1273 # all possible values, and return $(am__VAR_DIST).
1274 sub shadow_unconditionally ($$)
1275 {
1276 my ($varname, $where) = @_;
1277 my $var = var $varname;
1278 if ($var->has_conditional_contents)
1279 {
1280 $varname = "am__${varname}_DIST";
1281 my @files = uniq ($var->value_as_list_recursive);
1282 define_pretty_variable ($varname, TRUE, $where, @files);
1283 }
1284 return "\$($varname)"
1285 }
1287 # get_object_extension ($EXTENSION)
1288 # ---------------------------------
1289 # Prefix $EXTENSION with $U if ansi2knr is in use.
1290 sub get_object_extension ($)
1291 {
1292 my ($extension) = @_;
1294 # Check for automatic de-ANSI-fication.
1295 $extension = '$U' . $extension
1296 if option 'ansi2knr';
1298 $get_object_extension_was_run = 1;
1300 return $extension;
1301 }
1303 # check_user_variables (@LIST)
1304 # ----------------------------
1305 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1306 # otherwise.
1307 sub check_user_variables (@)
1308 {
1309 my @dont_override = @_;
1310 foreach my $flag (@dont_override)
1311 {
1312 my $var = var $flag;
1313 if ($var)
1314 {
1315 for my $cond ($var->conditions->conds)
1316 {
1317 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1318 {
1319 msg_cond_var ('gnu', $cond, $flag,
1320 "`$flag' is a user variable, "
1321 . "you should not override it;\n"
1322 . "use `AM_$flag' instead.");
1323 }
1324 }
1325 }
1326 }
1327 }
1329 # Call finish function for each language that was used.
1330 sub handle_languages
1331 {
1332 if (! option 'no-dependencies')
1333 {
1334 # Include auto-dep code. Don't include it if DEP_FILES would
1335 # be empty.
1336 if (&saw_sources_p (0) && keys %dep_files)
1337 {
1338 # Set location of depcomp.
1339 &define_variable ('depcomp',
1340 "\$(SHELL) $am_config_aux_dir/depcomp",
1341 INTERNAL);
1342 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1344 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1346 my @deplist = sort keys %dep_files;
1347 # Generate each `include' individually. Irix 6 make will
1348 # not properly include several files resulting from a
1349 # variable expansion; generating many separate includes
1350 # seems safest.
1351 $output_rules .= "\n";
1352 foreach my $iter (@deplist)
1353 {
1354 $output_rules .= (subst ('AMDEP_TRUE')
1355 . subst ('am__include')
1356 . ' '
1357 . subst ('am__quote')
1358 . $iter
1359 . subst ('am__quote')
1360 . "\n");
1361 }
1363 # Compute the set of directories to remove in distclean-depend.
1364 my @depdirs = uniq (map { dirname ($_) } @deplist);
1365 $output_rules .= &file_contents ('depend',
1366 new Automake::Location,
1367 DEPDIRS => "@depdirs");
1368 }
1369 }
1370 else
1371 {
1372 &define_variable ('depcomp', '', INTERNAL);
1373 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1374 }
1376 my %done;
1378 # Is the C linker needed?
1379 my $needs_c = 0;
1380 foreach my $ext (sort keys %extension_seen)
1381 {
1382 next unless $extension_map{$ext};
1384 my $lang = $languages{$extension_map{$ext}};
1386 my $rule_file = $lang->rule_file || 'depend2';
1388 # Get information on $LANG.
1389 my $pfx = $lang->autodep;
1390 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1392 my ($AMDEP, $FASTDEP) =
1393 (option 'no-dependencies' || $lang->autodep eq 'no')
1394 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1396 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1397 my $verbose_nodep = ($AMDEP eq 'FALSE')
1398 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1399 my $silent = silent_flag ();
1401 my %transform = ('EXT' => $ext,
1402 'PFX' => $pfx,
1403 'FPFX' => $fpfx,
1404 'AMDEP' => $AMDEP,
1405 'FASTDEP' => $FASTDEP,
1406 '-c' => $lang->compile_flag || '',
1407 # These are not used, but they need to be defined
1408 # so &transform do not complain.
1409 SUBDIROBJ => 0,
1410 'DERIVED-EXT' => 'BUG',
1411 DIST_SOURCE => 1,
1412 VERBOSE => $verbose,
1413 'VERBOSE-NODEP' => $verbose_nodep,
1414 SILENT => $silent,
1415 );
1417 # Generate the appropriate rules for this extension.
1418 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1419 || defined $lang->compile)
1420 {
1421 # Some C compilers don't support -c -o. Use it only if really
1422 # needed.
1423 my $output_flag = $lang->output_flag || '';
1424 $output_flag = '-o'
1425 if (! $output_flag
1426 && $lang->name eq 'c'
1427 && option 'subdir-objects');
1429 # Compute a possible derived extension.
1430 # This is not used by depend2.am.
1431 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1433 # When we output an inference rule like `.c.o:' we
1434 # have two cases to consider: either subdir-objects
1435 # is used, or it is not.
1436 #
1437 # In the latter case the rule is used to build objects
1438 # in the current directory, and dependencies always
1439 # go into `./$(DEPDIR)/'. We can hard-code this value.
1440 #
1441 # In the former case the rule can be used to build
1442 # objects in sub-directories too. Dependencies should
1443 # go into the appropriate sub-directories, e.g.,
1444 # `sub/$(DEPDIR)/'. The value of this directory
1445 # needs to be computed on-the-fly.
1446 #
1447 # DEPBASE holds the name of this directory, plus the
1448 # basename part of the object file (extensions Po, TPo,
1449 # Plo, TPlo will be added later as appropriate). It is
1450 # either hardcoded, or a shell variable (`$depbase') that
1451 # will be computed by the rule.
1452 my $depbase =
1453 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1454 $output_rules .=
1455 file_contents ($rule_file,
1456 new Automake::Location,
1457 %transform,
1458 GENERIC => 1,
1460 'DERIVED-EXT' => $der_ext,
1462 DEPBASE => $depbase,
1463 BASE => '$*',
1464 SOURCE => '$<',
1465 SOURCEFLAG => $sourceflags{$ext} || '',
1466 OBJ => '$@',
1467 OBJOBJ => '$@',
1468 LTOBJ => '$@',
1470 COMPILE => '$(' . $lang->compiler . ')',
1471 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1472 -o => $output_flag,
1473 SUBDIROBJ => !! option 'subdir-objects');
1474 }
1476 # Now include code for each specially handled object with this
1477 # language.
1478 my %seen_files = ();
1479 foreach my $file (@{$lang_specific_files{$lang->name}})
1480 {
1481 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1483 # We might see a given object twice, for instance if it is
1484 # used under different conditions.
1485 next if defined $seen_files{$obj};
1486 $seen_files{$obj} = 1;
1488 prog_error ("found " . $lang->name .
1489 " in handle_languages, but compiler not defined")
1490 unless defined $lang->compile;
1492 my $obj_compile = $lang->compile;
1494 # Rewrite each occurrence of `AM_$flag' in the compile
1495 # rule into `${derived}_$flag' if it exists.
1496 for my $flag (@{$lang->flags})
1497 {
1498 my $val = "${derived}_$flag";
1499 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1500 if set_seen ($val);
1501 }
1503 my $libtool_tag = '';
1504 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1505 {
1506 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1507 }
1509 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1510 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1512 my $ltverbose = define_verbose_libtool ();
1513 my $obj_ltcompile =
1514 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1515 . "--mode=compile $obj_compile";
1517 # We _need_ `-o' for per object rules.
1518 my $output_flag = $lang->output_flag || '-o';
1520 my $depbase = dirname ($obj);
1521 $depbase = ''
1522 if $depbase eq '.';
1523 $depbase .= '/'
1524 unless $depbase eq '';
1525 $depbase .= '$(DEPDIR)/' . basename ($obj);
1527 # Support for deansified files in subdirectories is ugly
1528 # enough to deserve an explanation.
1529 #
1530 # A Note about normal ansi2knr processing first. On
1531 #
1532 # AUTOMAKE_OPTIONS = ansi2knr
1533 # bin_PROGRAMS = foo
1534 # foo_SOURCES = foo.c
1535 #
1536 # we generate rules similar to:
1537 #
1538 # foo: foo$U.o; link ...
1539 # foo$U.o: foo$U.c; compile ...
1540 # foo_.c: foo.c; ansi2knr ...
1541 #
1542 # this is fairly compact, and will call ansi2knr depending
1543 # on the value of $U (`' or `_').
1544 #
1545 # It's harder with subdir sources. On
1546 #
1547 # AUTOMAKE_OPTIONS = ansi2knr
1548 # bin_PROGRAMS = foo
1549 # foo_SOURCES = sub/foo.c
1550 #
1551 # we have to create foo_.c in the current directory.
1552 # (Unless the user asks 'subdir-objects'.) This is important
1553 # in case the same file (`foo.c') is compiled from other
1554 # directories with different cpp options: foo_.c would
1555 # be preprocessed for only one set of options if it were
1556 # put in the subdirectory.
1557 #
1558 # Because foo$U.o must be built from either foo_.c or
1559 # sub/foo.c we can't be as concise as in the first example.
1560 # Instead we output
1561 #
1562 # foo: foo$U.o; link ...
1563 # foo_.o: foo_.c; compile ...
1564 # foo.o: sub/foo.c; compile ...
1565 # foo_.c: foo.c; ansi2knr ...
1566 #
1567 # This is why we'll now transform $rule_file twice
1568 # if we detect this case.
1569 # A first time we output the compile rule with `$U'
1570 # replaced by `_' and the source directory removed,
1571 # and another time we simply remove `$U'.
1572 #
1573 # Note that at this point $source (as computed by
1574 # &handle_single_transform) is `sub/foo$U.c'.
1575 # This can be confusing: it can be used as-is when
1576 # subdir-objects is set, otherwise you have to know
1577 # it really means `foo_.c' or `sub/foo.c'.
1578 my $objdir = dirname ($obj);
1579 my $srcdir = dirname ($source);
1580 if ($lang->ansi && $obj =~ /\$U/)
1581 {
1582 prog_error "`$obj' contains \$U, but `$source' doesn't."
1583 if $source !~ /\$U/;
1585 (my $source_ = $source) =~ s/\$U/_/g;
1586 # Output an additional rule if _.c and .c are not in
1587 # the same directory. (_.c is always in $objdir.)
1588 if ($objdir ne $srcdir)
1589 {
1590 (my $obj_ = $obj) =~ s/\$U/_/g;
1591 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1592 $source_ = basename ($source_);
1594 $output_rules .=
1595 file_contents ($rule_file,
1596 new Automake::Location,
1597 %transform,
1598 GENERIC => 0,
1600 DEPBASE => $depbase_,
1601 BASE => $obj_,
1602 SOURCE => $source_,
1603 SOURCEFLAG => $sourceflags{$srcext} || '',
1604 OBJ => "$obj_$myext",
1605 OBJOBJ => "$obj_.obj",
1606 LTOBJ => "$obj_.lo",
1608 COMPILE => $obj_compile,
1609 LTCOMPILE => $obj_ltcompile,
1610 -o => $output_flag,
1611 %file_transform);
1612 $obj =~ s/\$U//g;
1613 $depbase =~ s/\$U//g;
1614 $source =~ s/\$U//g;
1615 }
1616 }
1618 $output_rules .=
1619 file_contents ($rule_file,
1620 new Automake::Location,
1621 %transform,
1622 GENERIC => 0,
1624 DEPBASE => $depbase,
1625 BASE => $obj,
1626 SOURCE => $source,
1627 SOURCEFLAG => $sourceflags{$srcext} || '',
1628 # Use $myext and not `.o' here, in case
1629 # we are actually building a new source
1630 # file -- e.g. via yacc.
1631 OBJ => "$obj$myext",
1632 OBJOBJ => "$obj.obj",
1633 LTOBJ => "$obj.lo",
1635 VERBOSE => $verbose,
1636 'VERBOSE-NODEP' => $verbose_nodep,
1637 SILENT => $silent,
1638 COMPILE => $obj_compile,
1639 LTCOMPILE => $obj_ltcompile,
1640 -o => $output_flag,
1641 %file_transform);
1642 }
1644 # The rest of the loop is done once per language.
1645 next if defined $done{$lang};
1646 $done{$lang} = 1;
1648 # Load the language dependent Makefile chunks.
1649 my %lang = map { uc ($_) => 0 } keys %languages;
1650 $lang{uc ($lang->name)} = 1;
1651 $output_rules .= file_contents ('lang-compile',
1652 new Automake::Location,
1653 %transform, %lang);
1655 # If the source to a program consists entirely of code from a
1656 # `pure' language, for instance C++ or Fortran 77, then we
1657 # don't need the C compiler code. However if we run into
1658 # something unusual then we do generate the C code. There are
1659 # probably corner cases here that do not work properly.
1660 # People linking Java code to Fortran code deserve pain.
1661 $needs_c ||= ! $lang->pure;
1663 define_compiler_variable ($lang)
1664 if ($lang->compile);
1666 define_linker_variable ($lang)
1667 if ($lang->link);
1669 require_variables ("$am_file.am", $lang->Name . " source seen",
1670 TRUE, @{$lang->config_vars});
1672 # Call the finisher.
1673 $lang->finish;
1675 # Flags listed in `->flags' are user variables (per GNU Standards),
1676 # they should not be overridden in the Makefile...
1677 my @dont_override = @{$lang->flags};
1678 # ... and so is LDFLAGS.
1679 push @dont_override, 'LDFLAGS' if $lang->link;
1681 check_user_variables @dont_override;
1682 }
1684 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1685 # suffix rule was learned), don't bother with the C stuff. But if
1686 # anything else creeps in, then use it.
1687 $needs_c = 1
1688 if $need_link || suffix_rules_count > 1;
1690 if ($needs_c)
1691 {
1692 &define_compiler_variable ($languages{'c'})
1693 unless defined $done{$languages{'c'}};
1694 define_linker_variable ($languages{'c'});
1695 }
1697 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1698 define_verbose_tagvar ('GEN');
1699 }
1702 # append_exeext { PREDICATE } $MACRO
1703 # ----------------------------------
1704 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1705 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1706 # ignored.
1707 #
1708 # This is typically used on all filenames of *_PROGRAMS, and filenames
1709 # of TESTS that are programs.
1710 sub append_exeext (&$)
1711 {
1712 my ($pred, $macro) = @_;
1714 transform_variable_recursively
1715 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1716 sub {
1717 my ($subvar, $val, $cond, $full_cond) = @_;
1718 # Append $(EXEEXT) unless the user did it already, or it's a
1719 # @substitution@.
1720 $val .= '$(EXEEXT)'
1721 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1722 return $val;
1723 });
1724 }
1727 # Check to make sure a source defined in LIBOBJS is not explicitly
1728 # mentioned. This is a separate function (as opposed to being inlined
1729 # in handle_source_transform) because it isn't always appropriate to
1730 # do this check.
1731 sub check_libobjs_sources
1732 {
1733 my ($one_file, $unxformed) = @_;
1735 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1736 'dist_EXTRA_', 'nodist_EXTRA_')
1737 {
1738 my @files;
1739 my $varname = $prefix . $one_file . '_SOURCES';
1740 my $var = var ($varname);
1741 if ($var)
1742 {
1743 @files = $var->value_as_list_recursive;
1744 }
1745 elsif ($prefix eq '')
1746 {
1747 @files = ($unxformed . '.c');
1748 }
1749 else
1750 {
1751 next;
1752 }
1754 foreach my $file (@files)
1755 {
1756 err_var ($prefix . $one_file . '_SOURCES',
1757 "automatically discovered file `$file' should not" .
1758 " be explicitly mentioned")
1759 if defined $libsources{$file};
1760 }
1761 }
1762 }
1765 # @OBJECTS
1766 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1767 # -----------------------------------------------------------------------------
1768 # Does much of the actual work for handle_source_transform.
1769 # Arguments are:
1770 # $VAR is the name of the variable that the source filenames come from
1771 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1772 # $DERIVED is the name of resulting executable or library
1773 # $OBJ is the object extension (e.g., `$U.lo')
1774 # $FILE the source file to transform
1775 # %TRANSFORM contains extras arguments to pass to file_contents
1776 # when producing explicit rules
1777 # Result is a list of the names of objects
1778 # %linkers_used will be updated with any linkers needed
1779 sub handle_single_transform ($$$$$%)
1780 {
1781 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1782 my @files = ($_file);
1783 my @result = ();
1784 my $nonansi_obj = $obj;
1785 $nonansi_obj =~ s/\$U//g;
1787 # Turn sources into objects. We use a while loop like this
1788 # because we might add to @files in the loop.
1789 while (scalar @files > 0)
1790 {
1791 $_ = shift @files;
1793 # Configure substitutions in _SOURCES variables are errors.
1794 if (/^\@.*\@$/)
1795 {
1796 my $parent_msg = '';
1797 $parent_msg = "\nand is referred to from `$topparent'"
1798 if $topparent ne $var->name;
1799 err_var ($var,
1800 "`" . $var->name . "' includes configure substitution `$_'"
1801 . $parent_msg . ";\nconfigure " .
1802 "substitutions are not allowed in _SOURCES variables");
1803 next;
1804 }
1806 # If the source file is in a subdirectory then the `.o' is put
1807 # into the current directory, unless the subdir-objects option
1808 # is in effect.
1810 # Split file name into base and extension.
1811 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1812 my $full = $_;
1813 my $directory = $1 || '';
1814 my $base = $2;
1815 my $extension = $3;
1817 # We must generate a rule for the object if it requires its own flags.
1818 my $renamed = 0;
1819 my ($linker, $object);
1821 # This records whether we've seen a derived source file (e.g.
1822 # yacc output).
1823 my $derived_source = 0;
1825 # This holds the `aggregate context' of the file we are
1826 # currently examining. If the file is compiled with
1827 # per-object flags, then it will be the name of the object.
1828 # Otherwise it will be `AM'. This is used by the target hook
1829 # language function.
1830 my $aggregate = 'AM';
1832 $extension = &derive_suffix ($extension, $nonansi_obj);
1833 my $lang;
1834 if ($extension_map{$extension} &&
1835 ($lang = $languages{$extension_map{$extension}}))
1836 {
1837 # Found the language, so see what it says.
1838 &saw_extension ($extension);
1840 # Do we have per-executable flags for this executable?
1841 my $have_per_exec_flags = 0;
1842 my @peflags = @{$lang->flags};
1843 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1844 foreach my $flag (@peflags)
1845 {
1846 if (set_seen ("${derived}_$flag"))
1847 {
1848 $have_per_exec_flags = 1;
1849 last;
1850 }
1851 }
1853 # Note: computed subr call. The language rewrite function
1854 # should return one of the LANG_* constants. It could
1855 # also return a list whose first value is such a constant
1856 # and whose second value is a new source extension which
1857 # should be applied. This means this particular language
1858 # generates another source file which we must then process
1859 # further.
1860 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1861 my ($r, $source_extension)
1862 = &$subr ($directory, $base, $extension,
1863 $nonansi_obj, $have_per_exec_flags, $var);
1864 # Skip this entry if we were asked not to process it.
1865 next if $r == LANG_IGNORE;
1867 # Now extract linker and other info.
1868 $linker = $lang->linker;
1870 my $this_obj_ext;
1871 if (defined $source_extension)
1872 {
1873 $this_obj_ext = $source_extension;
1874 $derived_source = 1;
1875 }
1876 elsif ($lang->ansi)
1877 {
1878 $this_obj_ext = $obj;
1879 }
1880 else
1881 {
1882 $this_obj_ext = $nonansi_obj;
1883 }
1884 $object = $base . $this_obj_ext;
1886 if ($have_per_exec_flags)
1887 {
1888 # We have a per-executable flag in effect for this
1889 # object. In this case we rewrite the object's
1890 # name to ensure it is unique.
1892 # We choose the name `DERIVED_OBJECT' to ensure
1893 # (1) uniqueness, and (2) continuity between
1894 # invocations. However, this will result in a
1895 # name that is too long for losing systems, in
1896 # some situations. So we provide _SHORTNAME to
1897 # override.
1899 my $dname = $derived;
1900 my $var = var ($derived . '_SHORTNAME');
1901 if ($var)
1902 {
1903 # FIXME: should use the same Condition as
1904 # the _SOURCES variable. But this is really
1905 # silly overkill -- nobody should have
1906 # conditional shortnames.
1907 $dname = $var->variable_value;
1908 }
1909 $object = $dname . '-' . $object;
1911 prog_error ($lang->name . " flags defined without compiler")
1912 if ! defined $lang->compile;
1914 $renamed = 1;
1915 }
1917 # If rewrite said it was ok, put the object into a
1918 # subdir.
1919 if ($r == LANG_SUBDIR && $directory ne '')
1920 {
1921 $object = $directory . '/' . $object;
1922 }
1924 # If the object file has been renamed (because per-target
1925 # flags are used) we cannot compile the file with an
1926 # inference rule: we need an explicit rule.
1927 #
1928 # If the source is in a subdirectory and the object is in
1929 # the current directory, we also need an explicit rule.
1930 #
1931 # If both source and object files are in a subdirectory
1932 # (this happens when the subdir-objects option is used),
1933 # then the inference will work.
1934 #
1935 # The latter case deserves a historical note. When the
1936 # subdir-objects option was added on 1999-04-11 it was
1937 # thought that inferences rules would work for
1938 # subdirectory objects too. Later, on 1999-11-22,
1939 # automake was changed to output explicit rules even for
1940 # subdir-objects. Nobody remembers why, but this occurred
1941 # soon after the merge of the user-dep-gen-branch so it
1942 # might be related. In late 2003 people complained about
1943 # the size of the generated Makefile.ins (libgcj, with
1944 # 2200+ subdir objects was reported to have a 9MB
1945 # Makefile), so we now rely on inference rules again.
1946 # Maybe we'll run across the same issue as in the past,
1947 # but at least this time we can document it. However since
1948 # dependency tracking has evolved it is possible that
1949 # our old problem no longer exists.
1950 # Using inference rules for subdir-objects has been tested
1951 # with GNU make, Solaris make, Ultrix make, BSD make,
1952 # HP-UX make, and OSF1 make successfully.
1953 if ($renamed
1954 || ($directory ne '' && ! option 'subdir-objects')
1955 # We must also use specific rules for a nodist_ source
1956 # if its language requests it.
1957 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1958 {
1959 my $obj_sans_ext = substr ($object, 0,
1960 - length ($this_obj_ext));
1961 my $full_ansi;
1962 if ($directory ne '')
1963 {
1964 $full_ansi = $directory . '/' . $base . $extension;
1965 }
1966 else
1967 {
1968 $full_ansi = $base . $extension;
1969 }
1971 if ($lang->ansi && option 'ansi2knr')
1972 {
1973 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1974 $obj_sans_ext .= '$U';
1975 }
1977 my @specifics = ($full_ansi, $obj_sans_ext,
1978 # Only use $this_obj_ext in the derived
1979 # source case because in the other case we
1980 # *don't* want $(OBJEXT) to appear here.
1981 ($derived_source ? $this_obj_ext : '.o'),
1982 $extension);
1984 # If we renamed the object then we want to use the
1985 # per-executable flag name. But if this is simply a
1986 # subdir build then we still want to use the AM_ flag
1987 # name.
1988 if ($renamed)
1989 {
1990 unshift @specifics, $derived;
1991 $aggregate = $derived;
1992 }
1993 else
1994 {
1995 unshift @specifics, 'AM';
1996 }
1998 # Each item on this list is a reference to a list consisting
1999 # of four values followed by additional transform flags for
2000 # file_contents. The four values are the derived flag prefix
2001 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
2002 # source file, the base name of the output file, and
2003 # the extension for the object file.
2004 push (@{$lang_specific_files{$lang->name}},
2005 [@specifics, %transform]);
2006 }
2007 }
2008 elsif ($extension eq $nonansi_obj)
2009 {
2010 # This is probably the result of a direct suffix rule.
2011 # In this case we just accept the rewrite.
2012 $object = "$base$extension";
2013 $object = "$directory/$object" if $directory ne '';
2014 $linker = '';
2015 }
2016 else
2017 {
2018 # No error message here. Used to have one, but it was
2019 # very unpopular.
2020 # FIXME: we could potentially do more processing here,
2021 # perhaps treating the new extension as though it were a
2022 # new source extension (as above). This would require
2023 # more restructuring than is appropriate right now.
2024 next;
2025 }
2027 err_am "object `$object' created by `$full' and `$object_map{$object}'"
2028 if (defined $object_map{$object}
2029 && $object_map{$object} ne $full);
2031 my $comp_val = (($object =~ /\.lo$/)
2032 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2033 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2034 if (defined $object_compilation_map{$comp_obj}
2035 && $object_compilation_map{$comp_obj} != 0
2036 # Only see the error once.
2037 && ($object_compilation_map{$comp_obj}
2038 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2039 && $object_compilation_map{$comp_obj} != $comp_val)
2040 {
2041 err_am "object `$comp_obj' created both with libtool and without";
2042 }
2043 $object_compilation_map{$comp_obj} |= $comp_val;
2045 if (defined $lang)
2046 {
2047 # Let the language do some special magic if required.
2048 $lang->target_hook ($aggregate, $object, $full, %transform);
2049 }
2051 if ($derived_source)
2052 {
2053 prog_error ($lang->name . " has automatic dependency tracking")
2054 if $lang->autodep ne 'no';
2055 # Make sure this new source file is handled next. That will
2056 # make it appear to be at the right place in the list.
2057 unshift (@files, $object);
2058 # Distribute derived sources unless the source they are
2059 # derived from is not.
2060 &push_dist_common ($object)
2061 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2062 next;
2063 }
2065 $linkers_used{$linker} = 1;
2067 push (@result, $object);
2069 if (! defined $object_map{$object})
2070 {
2071 my @dep_list = ();
2072 $object_map{$object} = $full;
2074 # If resulting object is in subdir, we need to make
2075 # sure the subdir exists at build time.
2076 if ($object =~ /\//)
2077 {
2078 # FIXME: check that $DIRECTORY is somewhere in the
2079 # project
2081 # For Java, the way we're handling it right now, a
2082 # `..' component doesn't make sense.
2083 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2084 {
2085 err_am "`$full' should not contain a `..' component";
2086 }
2088 # Make sure object is removed by `make mostlyclean'.
2089 $compile_clean_files{$object} = MOSTLY_CLEAN;
2090 # If we have a libtool object then we also must remove
2091 # the ordinary .o.
2092 if ($object =~ /\.lo$/)
2093 {
2094 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2095 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2097 # Remove any libtool object in this directory.
2098 $libtool_clean_directories{$directory} = 1;
2099 }
2101 push (@dep_list, require_build_directory ($directory));
2103 # If we're generating dependencies, we also want
2104 # to make sure that the appropriate subdir of the
2105 # .deps directory is created.
2106 push (@dep_list,
2107 require_build_directory ($directory . '/$(DEPDIR)'))
2108 unless option 'no-dependencies';
2109 }
2111 &pretty_print_rule ($object . ':', "\t", @dep_list)
2112 if scalar @dep_list > 0;
2113 }
2115 # Transform .o or $o file into .P file (for automatic
2116 # dependency code).
2117 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2118 # might fail over them in an include statement.
2119 # Leading double slashes may be special, as per Posix, so deal
2120 # with them carefully.
2121 if ($lang && $lang->autodep ne 'no')
2122 {
2123 my $depfile = $object;
2124 $depfile =~ s/\.([^.]*)$/.P$1/;
2125 $depfile =~ s/\$\(OBJEXT\)$/o/;
2126 my $maybe_extra_leading_slash = '';
2127 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2128 $depfile =~ s,/+,/,g;
2129 my $basename = basename ($depfile);
2130 # This might make $dirname empty, but we account for that below.
2131 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2132 $dirname = $maybe_extra_leading_slash . $dirname;
2133 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2134 }
2135 }
2137 return @result;
2138 }
2141 # $LINKER
2142 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2143 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2144 # ---------------------------------------------------------------------------
2145 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2146 #
2147 # Arguments are:
2148 # $VAR is the name of the _SOURCES variable
2149 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2150 # it will be generated and returned).
2151 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2152 # work done to determine the linker will be).
2153 # $ONE_FILE is the canonical (transformed) name of object to build
2154 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2155 # $TOPPARENT is the _SOURCES variable being processed.
2156 # $WHERE context into which this definition is done
2157 # %TRANSFORM extra arguments to pass to file_contents when producing
2158 # rules
2159 #
2160 # Result is a pair ($LINKER, $OBJVAR):
2161 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2162 sub define_objects_from_sources ($$$$$$$%)
2163 {
2164 my ($var, $objvar, $nodefine, $one_file,
2165 $obj, $topparent, $where, %transform) = @_;
2167 my $needlinker = "";
2169 transform_variable_recursively
2170 ($var, $objvar, 'am__objects', $nodefine, $where,
2171 # The transform code to run on each filename.
2172 sub {
2173 my ($subvar, $val, $cond, $full_cond) = @_;
2174 my @trans = handle_single_transform ($subvar, $topparent,
2175 $one_file, $obj, $val,
2176 %transform);
2177 $needlinker = "true" if @trans;
2178 return @trans;
2179 });
2181 return $needlinker;
2182 }
2185 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2186 # -----------------------------------------------------------------------------
2187 # Handle SOURCE->OBJECT transform for one program or library.
2188 # Arguments are:
2189 # canonical (transformed) name of target to build
2190 # actual target of object to build
2191 # object extension (i.e., either `.o' or `$o')
2192 # location of the source variable
2193 # extra arguments to pass to file_contents when producing rules
2194 # Return the name of the linker variable that must be used.
2195 # Empty return means just use `LINK'.
2196 sub handle_source_transform ($$$$%)
2197 {
2198 # one_file is canonical name. unxformed is given name. obj is
2199 # object extension.
2200 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2202 my $linker = '';
2204 # No point in continuing if _OBJECTS is defined.
2205 return if reject_var ($one_file . '_OBJECTS',
2206 $one_file . '_OBJECTS should not be defined');
2208 my %used_pfx = ();
2209 my $needlinker;
2210 %linkers_used = ();
2211 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2212 'dist_EXTRA_', 'nodist_EXTRA_')
2213 {
2214 my $varname = $prefix . $one_file . "_SOURCES";
2215 my $var = var $varname;
2216 next unless $var;
2218 # We are going to define _OBJECTS variables using the prefix.
2219 # Then we glom them all together. So we can't use the null
2220 # prefix here as we need it later.
2221 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2223 # Keep track of which prefixes we saw.
2224 $used_pfx{$xpfx} = 1
2225 unless $prefix =~ /EXTRA_/;
2227 push @sources, "\$($varname)";
2228 push @dist_sources, shadow_unconditionally ($varname, $where)
2229 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2231 $needlinker |=
2232 define_objects_from_sources ($varname,
2233 $xpfx . $one_file . '_OBJECTS',
2234 $prefix =~ /EXTRA_/,
2235 $one_file, $obj, $varname, $where,
2236 DIST_SOURCE => ($prefix !~ /^nodist_/),
2237 %transform);
2238 }
2239 if ($needlinker)
2240 {
2241 $linker ||= &resolve_linker (%linkers_used);
2242 }
2244 my @keys = sort keys %used_pfx;
2245 if (scalar @keys == 0)
2246 {
2247 # The default source for libfoo.la is libfoo.c, but for
2248 # backward compatibility we first look at libfoo_la.c,
2249 # if no default source suffix is given.
2250 my $old_default_source = "$one_file.c";
2251 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2252 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2253 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2254 if $default_source_ext =~ /[\t ]/;
2255 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2256 if ($old_default_source ne $default_source
2257 && !$ext_var
2258 && (rule $old_default_source
2259 || rule '$(srcdir)/' . $old_default_source
2260 || rule '${srcdir}/' . $old_default_source
2261 || -f $old_default_source))
2262 {
2263 my $loc = $where->clone;
2264 $loc->pop_context;
2265 msg ('obsolete', $loc,
2266 "the default source for `$unxformed' has been changed "
2267 . "to `$default_source'.\n(Using `$old_default_source' for "
2268 . "backward compatibility.)");
2269 $default_source = $old_default_source;
2270 }
2271 # If a rule exists to build this source with a $(srcdir)
2272 # prefix, use that prefix in our variables too. This is for
2273 # the sake of BSD Make.
2274 if (rule '$(srcdir)/' . $default_source
2275 || rule '${srcdir}/' . $default_source)
2276 {
2277 $default_source = '$(srcdir)/' . $default_source;
2278 }
2280 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2281 push (@sources, $default_source);
2282 push (@dist_sources, $default_source);
2284 %linkers_used = ();
2285 my (@result) =
2286 handle_single_transform ($one_file . '_SOURCES',
2287 $one_file . '_SOURCES',
2288 $one_file, $obj,
2289 $default_source, %transform);
2290 $linker ||= &resolve_linker (%linkers_used);
2291 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2292 }
2293 else
2294 {
2295 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2296 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2297 }
2299 # If we want to use `LINK' we must make sure it is defined.
2300 if ($linker eq '')
2301 {
2302 $need_link = 1;
2303 }
2305 return $linker;
2306 }
2309 # handle_lib_objects ($XNAME, $VAR)
2310 # ---------------------------------
2311 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2312 # Also, generate _DEPENDENCIES variable if appropriate.
2313 # Arguments are:
2314 # transformed name of object being built, or empty string if no object
2315 # name of _LDADD/_LIBADD-type variable to examine
2316 # Returns 1 if LIBOBJS seen, 0 otherwise.
2317 sub handle_lib_objects
2318 {
2319 my ($xname, $varname) = @_;
2321 my $var = var ($varname);
2322 prog_error "handle_lib_objects: `$varname' undefined"
2323 unless $var;
2324 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2325 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2326 my $prefix = $1 || 'AM_';
2328 my $seen_libobjs = 0;
2329 my $flagvar = 0;
2331 transform_variable_recursively
2332 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2333 ! $xname, INTERNAL,
2334 # Transformation function, run on each filename.
2335 sub {
2336 my ($subvar, $val, $cond, $full_cond) = @_;
2338 if ($val =~ /^-/)
2339 {
2340 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2341 if ($val !~ /^-[lL]/ &&
2342 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2343 # for Libtool libraries or programs. (Actually we are a bit
2344 # lax here since this code also applies to non-libtool
2345 # libraries or programs, for which -dlopen and -dlopreopen
2346 # are pure nonsense. Diagnosing this doesn't seem very
2347 # important: the developer will quickly get complaints from
2348 # the linker.)
2349 $val !~ /^-dl(?:pre)?open$/ &&
2350 # Only get this error once.
2351 ! $flagvar)
2352 {
2353 $flagvar = 1;
2354 # FIXME: should display a stack of nested variables
2355 # as context when $var != $subvar.
2356 err_var ($var, "linker flags such as `$val' belong in "
2357 . "`${prefix}LDFLAGS");
2358 }
2359 return ();
2360 }
2361 elsif ($val !~ /^\@.*\@$/)
2362 {
2363 # Assume we have a file of some sort, and output it into the
2364 # dependency variable. Autoconf substitutions are not output;
2365 # rarely is a new dependency substituted into e.g. foo_LDADD
2366 # -- but bad things (e.g. -lX11) are routinely substituted.
2367 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2368 # and handled specially below.
2369 return $val;
2370 }
2371 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2372 {
2373 handle_LIBOBJS ($subvar, $cond, $1);
2374 $seen_libobjs = 1;
2375 return $val;
2376 }
2377 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2378 {
2379 handle_ALLOCA ($subvar, $cond, $1);
2380 return $val;
2381 }
2382 else
2383 {
2384 return ();
2385 }
2386 });
2388 return $seen_libobjs;
2389 }
2391 # handle_LIBOBJS_or_ALLOCA ($VAR)
2392 # -------------------------------
2393 # Definitions common to LIBOBJS and ALLOCA.
2394 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2395 sub handle_LIBOBJS_or_ALLOCA ($)
2396 {
2397 my ($var) = @_;
2399 my $dir = '';
2401 # If LIBOBJS files must be built in another directory we have
2402 # to define LIBOBJDIR and ensure the files get cleaned.
2403 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2404 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2405 if ($config_libobj_dir
2406 && $relative_dir ne $config_libobj_dir)
2407 {
2408 if (option 'subdir-objects')
2409 {
2410 # In the top-level Makefile we do not use $(top_builddir), because
2411 # we are already there, and since the targets are built without
2412 # a $(top_builddir), it helps BSD Make to match them with
2413 # dependencies.
2414 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2415 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2416 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2417 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2418 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2419 # be created by libtool as a side-effect of creating LTLIBOBJS).
2420 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2421 }
2422 else
2423 {
2424 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2425 . " `subdir-objects' is not set");
2426 }
2427 }
2429 return $dir;
2430 }
2432 sub handle_LIBOBJS ($$$)
2433 {
2434 my ($var, $cond, $lt) = @_;
2435 my $myobjext = $lt ? 'lo' : 'o';
2436 $lt ||= '';
2438 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2439 if ! keys %libsources;
2441 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2443 foreach my $iter (keys %libsources)
2444 {
2445 if ($iter =~ /\.[cly]$/)
2446 {
2447 &saw_extension ($&);
2448 &saw_extension ('.c');
2449 }
2451 if ($iter =~ /\.h$/)
2452 {
2453 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2454 }
2455 elsif ($iter ne 'alloca.c')
2456 {
2457 my $rewrite = $iter;
2458 $rewrite =~ s/\.c$/.P$myobjext/;
2459 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2460 $rewrite = "^" . quotemeta ($iter) . "\$";
2461 # Only require the file if it is not a built source.
2462 my $bs = var ('BUILT_SOURCES');
2463 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2464 {
2465 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2466 }
2467 }
2468 }
2469 }
2471 sub handle_ALLOCA ($$$)
2472 {
2473 my ($var, $cond, $lt) = @_;
2474 my $myobjext = $lt ? 'lo' : 'o';
2475 $lt ||= '';
2476 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2478 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2479 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2480 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2481 &saw_extension ('.c');
2482 }
2484 # Canonicalize the input parameter
2485 sub canonicalize
2486 {
2487 my ($string) = @_;
2488 $string =~ tr/A-Za-z0-9_\@/_/c;
2489 return $string;
2490 }
2492 # Canonicalize a name, and check to make sure the non-canonical name
2493 # is never used. Returns canonical name. Arguments are name and a
2494 # list of suffixes to check for.
2495 sub check_canonical_spelling
2496 {
2497 my ($name, @suffixes) = @_;
2499 my $xname = &canonicalize ($name);
2500 if ($xname ne $name)
2501 {
2502 foreach my $xt (@suffixes)
2503 {
2504 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2505 }
2506 }
2508 return $xname;
2509 }
2512 # handle_compile ()
2513 # -----------------
2514 # Set up the compile suite.
2515 sub handle_compile ()
2516 {
2517 return
2518 unless $get_object_extension_was_run;
2520 # Boilerplate.
2521 my $default_includes = '';
2522 if (! option 'nostdinc')
2523 {
2524 my @incs = ('-I.', subst ('am__isrc'));
2526 my $var = var 'CONFIG_HEADER';
2527 if ($var)
2528 {
2529 foreach my $hdr (split (' ', $var->variable_value))
2530 {
2531 push @incs, '-I' . dirname ($hdr);
2532 }
2533 }
2534 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2535 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2536 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2537 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2538 # to just put @am__isrc@ right after `-I.', without a space.
2539 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2540 }
2542 my (@mostly_rms, @dist_rms);
2543 foreach my $item (sort keys %compile_clean_files)
2544 {
2545 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2546 {
2547 push (@mostly_rms, "\t-rm -f $item");
2548 }
2549 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2550 {
2551 push (@dist_rms, "\t-rm -f $item");
2552 }
2553 else
2554 {
2555 prog_error 'invalid entry in %compile_clean_files';
2556 }
2557 }
2559 my ($coms, $vars, $rules) =
2560 &file_contents_internal (1, "$libdir/am/compile.am",
2561 new Automake::Location,
2562 ('DEFAULT_INCLUDES' => $default_includes,
2563 'MOSTLYRMS' => join ("\n", @mostly_rms),
2564 'DISTRMS' => join ("\n", @dist_rms)));
2565 $output_vars .= $vars;
2566 $output_rules .= "$coms$rules";
2568 # Check for automatic de-ANSI-fication.
2569 if (option 'ansi2knr')
2570 {
2571 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2572 my $ansi2knr_dir = '';
2574 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2575 TRUE, "ANSI2KNR", "U");
2577 # topdir is where ansi2knr should be.
2578 if ($ansi2knr_filename eq 'ansi2knr')
2579 {
2580 # Only require ansi2knr files if they should appear in
2581 # this directory.
2582 require_file ($ansi2knr_where, FOREIGN,
2583 'ansi2knr.c', 'ansi2knr.1');
2585 # ansi2knr needs to be built before subdirs, so unshift it
2586 # rather then pushing it.
2587 unshift (@all, '$(ANSI2KNR)');
2588 }
2589 else
2590 {
2591 $ansi2knr_dir = dirname ($ansi2knr_filename);
2592 }
2594 $output_rules .= &file_contents ('ansi2knr',
2595 new Automake::Location,
2596 'ANSI2KNR-DIR' => $ansi2knr_dir);
2598 }
2599 }
2601 # handle_libtool ()
2602 # -----------------
2603 # Handle libtool rules.
2604 sub handle_libtool
2605 {
2606 return unless var ('LIBTOOL');
2608 # Libtool requires some files, but only at top level.
2609 # (Starting with Libtool 2.0 we do not have to bother. These
2610 # requirements are done with AC_REQUIRE_AUX_FILE.)
2611 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2612 if $relative_dir eq '.' && ! $libtool_new_api;
2614 my @libtool_rms;
2615 foreach my $item (sort keys %libtool_clean_directories)
2616 {
2617 my $dir = ($item eq '.') ? '' : "$item/";
2618 # .libs is for Unix, _libs for DOS.
2619 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2620 }
2622 check_user_variables 'LIBTOOLFLAGS';
2624 # Output the libtool compilation rules.
2625 $output_rules .= &file_contents ('libtool',
2626 new Automake::Location,
2627 LTRMS => join ("\n", @libtool_rms));
2628 }
2630 # handle_programs ()
2631 # ------------------
2632 # Handle C programs.
2633 sub handle_programs
2634 {
2635 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2636 'bin', 'sbin', 'libexec', 'pkglibexec',
2637 'noinst', 'check');
2638 return if ! @proglist;
2640 my $seen_global_libobjs =
2641 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2643 foreach my $pair (@proglist)
2644 {
2645 my ($where, $one_file) = @$pair;
2647 my $seen_libobjs = 0;
2648 my $obj = get_object_extension '.$(OBJEXT)';
2650 $known_programs{$one_file} = $where;
2652 # Canonicalize names and check for misspellings.
2653 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2654 '_SOURCES', '_OBJECTS',
2655 '_DEPENDENCIES');
2657 $where->push_context ("while processing program `$one_file'");
2658 $where->set (INTERNAL->get);
2660 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2661 NONLIBTOOL => 1, LIBTOOL => 0);
2663 if (var ($xname . "_LDADD"))
2664 {
2665 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2666 }
2667 else
2668 {
2669 # User didn't define prog_LDADD override. So do it.
2670 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2672 # This does a bit too much work. But we need it to
2673 # generate _DEPENDENCIES when appropriate.
2674 if (var ('LDADD'))
2675 {
2676 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2677 }
2678 }
2680 reject_var ($xname . '_LIBADD',
2681 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2683 set_seen ($xname . '_DEPENDENCIES');
2684 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2685 set_seen ($xname . '_LDFLAGS');
2687 # Determine program to use for link.
2688 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2689 $vlink = verbose_flag ($vlink || 'GEN');
2691 # If the resulting program lies into a subdirectory,
2692 # make sure this directory will exist.
2693 my $dirstamp = require_build_directory_maybe ($one_file);
2695 $libtool_clean_directories{dirname ($one_file)} = 1;
2697 $output_rules .= &file_contents ('program',
2698 $where,
2699 PROGRAM => $one_file,
2700 XPROGRAM => $xname,
2701 XLINK => $xlink,
2702 VERBOSE => $vlink,
2703 DIRSTAMP => $dirstamp,
2704 EXEEXT => '$(EXEEXT)');
2706 if ($seen_libobjs || $seen_global_libobjs)
2707 {
2708 if (var ($xname . '_LDADD'))
2709 {
2710 &check_libobjs_sources ($xname, $xname . '_LDADD');
2711 }
2712 elsif (var ('LDADD'))
2713 {
2714 &check_libobjs_sources ($xname, 'LDADD');
2715 }
2716 }
2717 }
2718 }
2721 # handle_libraries ()
2722 # -------------------
2723 # Handle libraries.
2724 sub handle_libraries
2725 {
2726 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2727 'lib', 'pkglib', 'noinst', 'check');
2728 return if ! @liblist;
2730 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2731 'noinst', 'check');
2733 if (@prefix)
2734 {
2735 my $var = rvar ($prefix[0] . '_LIBRARIES');
2736 $var->requires_variables ('library used', 'RANLIB');
2737 }
2739 &define_variable ('AR', 'ar', INTERNAL);
2740 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2741 &define_verbose_tagvar ('AR');
2743 foreach my $pair (@liblist)
2744 {
2745 my ($where, $onelib) = @$pair;
2747 my $seen_libobjs = 0;
2748 # Check that the library fits the standard naming convention.
2749 my $bn = basename ($onelib);
2750 if ($bn !~ /^lib.*\.a$/)
2751 {
2752 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2753 my $suggestion = dirname ($onelib) . "/$bn";
2754 $suggestion =~ s|^\./||g;
2755 msg ('error-gnu/warn', $where,
2756 "`$onelib' is not a standard library name\n"
2757 . "did you mean `$suggestion'?")
2758 }
2760 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2762 $where->push_context ("while processing library `$onelib'");
2763 $where->set (INTERNAL->get);
2765 my $obj = get_object_extension '.$(OBJEXT)';
2767 # Canonicalize names and check for misspellings.
2768 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2769 '_OBJECTS', '_DEPENDENCIES',
2770 '_AR');
2772 if (! var ($xlib . '_AR'))
2773 {
2774 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2775 }
2777 # Generate support for conditional object inclusion in
2778 # libraries.
2779 if (var ($xlib . '_LIBADD'))
2780 {
2781 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2782 {
2783 $seen_libobjs = 1;
2784 }
2785 }
2786 else
2787 {
2788 &define_variable ($xlib . "_LIBADD", '', $where);
2789 }
2791 reject_var ($xlib . '_LDADD',
2792 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2794 # Make sure we at look at this.
2795 set_seen ($xlib . '_DEPENDENCIES');
2796 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2798 &handle_source_transform ($xlib, $onelib, $obj, $where,
2799 NONLIBTOOL => 1, LIBTOOL => 0);
2801 # If the resulting library lies into a subdirectory,
2802 # make sure this directory will exist.
2803 my $dirstamp = require_build_directory_maybe ($onelib);
2804 my $verbose = verbose_flag ('AR');
2805 my $silent = silent_flag ();
2807 $output_rules .= &file_contents ('library',
2808 $where,
2809 VERBOSE => $verbose,
2810 SILENT => $silent,
2811 LIBRARY => $onelib,
2812 XLIBRARY => $xlib,
2813 DIRSTAMP => $dirstamp);
2815 if ($seen_libobjs)
2816 {
2817 if (var ($xlib . '_LIBADD'))
2818 {
2819 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2820 }
2821 }
2823 if (! $seen_ar)
2824 {
2825 msg ('extra-portability', $where,
2826 "`$onelib': linking libraries using a non-POSIX\n"
2827 . "archiver requires `AM_PROG_AR' in `$configure_ac'")
2828 }
2829 }
2830 }
2833 # handle_ltlibraries ()
2834 # ---------------------
2835 # Handle shared libraries.
2836 sub handle_ltlibraries
2837 {
2838 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2839 'noinst', 'lib', 'pkglib', 'check');
2840 return if ! @liblist;
2842 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2843 'noinst', 'check');
2845 if (@prefix)
2846 {
2847 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2848 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2849 }
2851 my %instdirs = ();
2852 my %instsubdirs = ();
2853 my %instconds = ();
2854 my %liblocations = (); # Location (in Makefile.am) of each library.
2856 foreach my $key (@prefix)
2857 {
2858 # Get the installation directory of each library.
2859 my $dir = $key;
2860 my $strip_subdir = 1;
2861 if ($dir =~ /^nobase_/)
2862 {
2863 $dir =~ s/^nobase_//;
2864 $strip_subdir = 0;
2865 }
2866 my $var = rvar ($key . '_LTLIBRARIES');
2868 # We reject libraries which are installed in several places
2869 # in the same condition, because we can only specify one
2870 # `-rpath' option.
2871 $var->traverse_recursively
2872 (sub
2873 {
2874 my ($var, $val, $cond, $full_cond) = @_;
2875 my $hcond = $full_cond->human;
2876 my $where = $var->rdef ($cond)->location;
2877 my $ldir = '';
2878 $ldir = '/' . dirname ($val)
2879 if (!$strip_subdir);
2880 # A library cannot be installed in different directories
2881 # in overlapping conditions.
2882 if (exists $instconds{$val})
2883 {
2884 my ($msg, $acond) =
2885 $instconds{$val}->ambiguous_p ($val, $full_cond);
2887 if ($msg)
2888 {
2889 error ($where, $msg, partial => 1);
2890 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2891 $dirtxt = "built for `$dir'"
2892 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2893 my $dircond =
2894 $full_cond->true ? "" : " in condition $hcond";
2896 error ($where, "`$val' should be $dirtxt$dircond ...",
2897 partial => 1);
2899 my $hacond = $acond->human;
2900 my $adir = $instdirs{$val}{$acond};
2901 my $adirtxt = "installed in `$adir'";
2902 $adirtxt = "built for `$adir'"
2903 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2904 || $adir eq 'check');
2905 my $adircond = $acond->true ? "" : " in condition $hacond";
2907 my $onlyone = ($dir ne $adir) ?
2908 ("\nLibtool libraries can be built for only one "
2909 . "destination.") : "";
2911 error ($liblocations{$val}{$acond},
2912 "... and should also be $adirtxt$adircond.$onlyone");
2913 return;
2914 }
2915 }
2916 else
2917 {
2918 $instconds{$val} = new Automake::DisjConditions;
2919 }
2920 $instdirs{$val}{$full_cond} = $dir;
2921 $instsubdirs{$val}{$full_cond} = $ldir;
2922 $liblocations{$val}{$full_cond} = $where;
2923 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2924 },
2925 sub
2926 {
2927 return ();
2928 },
2929 skip_ac_subst => 1);
2930 }
2932 foreach my $pair (@liblist)
2933 {
2934 my ($where, $onelib) = @$pair;
2936 my $seen_libobjs = 0;
2937 my $obj = get_object_extension '.lo';
2939 # Canonicalize names and check for misspellings.
2940 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2941 '_SOURCES', '_OBJECTS',
2942 '_DEPENDENCIES');
2944 # Check that the library fits the standard naming convention.
2945 my $libname_rx = '^lib.*\.la';
2946 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2947 my $ldvar2 = var ('LDFLAGS');
2948 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2949 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2950 {
2951 # Relax name checking for libtool modules.
2952 $libname_rx = '\.la';
2953 }
2955 my $bn = basename ($onelib);
2956 if ($bn !~ /$libname_rx$/)
2957 {
2958 my $type = 'library';
2959 if ($libname_rx eq '\.la')
2960 {
2961 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2962 $type = 'module';
2963 }
2964 else
2965 {
2966 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2967 }
2968 my $suggestion = dirname ($onelib) . "/$bn";
2969 $suggestion =~ s|^\./||g;
2970 msg ('error-gnu/warn', $where,
2971 "`$onelib' is not a standard libtool $type name\n"
2972 . "did you mean `$suggestion'?")
2973 }
2975 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2977 $where->push_context ("while processing Libtool library `$onelib'");
2978 $where->set (INTERNAL->get);
2980 # Make sure we look at these.
2981 set_seen ($xlib . '_LDFLAGS');
2982 set_seen ($xlib . '_DEPENDENCIES');
2983 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2985 # Generate support for conditional object inclusion in
2986 # libraries.
2987 if (var ($xlib . '_LIBADD'))
2988 {
2989 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2990 {
2991 $seen_libobjs = 1;
2992 }
2993 }
2994 else
2995 {
2996 &define_variable ($xlib . "_LIBADD", '', $where);
2997 }
2999 reject_var ("${xlib}_LDADD",
3000 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
3003 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
3004 NONLIBTOOL => 0, LIBTOOL => 1);
3006 # Determine program to use for link.
3007 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
3008 $vlink = verbose_flag ($vlink || 'GEN');
3010 my $rpathvar = "am_${xlib}_rpath";
3011 my $rpath = "\$($rpathvar)";
3012 foreach my $rcond ($instconds{$onelib}->conds)
3013 {
3014 my $val;
3015 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
3016 || $instdirs{$onelib}{$rcond} eq 'noinst'
3017 || $instdirs{$onelib}{$rcond} eq 'check')
3018 {
3019 # It's an EXTRA_ library, so we can't specify -rpath,
3020 # because we don't know where the library will end up.
3021 # The user probably knows, but generally speaking automake
3022 # doesn't -- and in fact configure could decide
3023 # dynamically between two different locations.
3024 $val = '';
3025 }
3026 else
3027 {
3028 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
3029 $val .= $instsubdirs{$onelib}{$rcond}
3030 if defined $instsubdirs{$onelib}{$rcond};
3031 }
3032 if ($rcond->true)
3033 {
3034 # If $rcond is true there is only one condition and
3035 # there is no point defining an helper variable.
3036 $rpath = $val;
3037 }
3038 else
3039 {
3040 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3041 }
3042 }
3044 # If the resulting library lies into a subdirectory,
3045 # make sure this directory will exist.
3046 my $dirstamp = require_build_directory_maybe ($onelib);
3048 # Remember to cleanup .libs/ in this directory.
3049 my $dirname = dirname $onelib;
3050 $libtool_clean_directories{$dirname} = 1;
3052 $output_rules .= &file_contents ('ltlibrary',
3053 $where,
3054 LTLIBRARY => $onelib,
3055 XLTLIBRARY => $xlib,
3056 RPATH => $rpath,
3057 XLINK => $xlink,
3058 VERBOSE => $vlink,
3059 DIRSTAMP => $dirstamp);
3060 if ($seen_libobjs)
3061 {
3062 if (var ($xlib . '_LIBADD'))
3063 {
3064 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3065 }
3066 }
3068 if (! $seen_ar)
3069 {
3070 msg ('extra-portability', $where,
3071 "`$onelib': linking libtool libraries using a non-POSIX\n"
3072 . "archiver requires `AM_PROG_AR' in `$configure_ac'")
3073 }
3074 }
3075 }
3077 # See if any _SOURCES variable were misspelled.
3078 sub check_typos ()
3079 {
3080 # It is ok if the user sets this particular variable.
3081 set_seen 'AM_LDFLAGS';
3083 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3084 {
3085 foreach my $var (variables $primary)
3086 {
3087 my $varname = $var->name;
3088 # A configure variable is always legitimate.
3089 next if exists $configure_vars{$varname};
3091 for my $cond ($var->conditions->conds)
3092 {
3093 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3094 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3095 . " program or\nlibrary has `$1' as canonical name"
3096 . " (possible typo)")
3097 unless $var->rdef ($cond)->seen;
3098 }
3099 }
3100 }
3101 }
3104 # Handle scripts.
3105 sub handle_scripts
3106 {
3107 # NOTE we no longer automatically clean SCRIPTS, because it is
3108 # useful to sometimes distribute scripts verbatim. This happens
3109 # e.g. in Automake itself.
3110 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3111 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
3112 'noinst', 'check');
3113 }
3118 ## ------------------------ ##
3119 ## Handling Texinfo files. ##
3120 ## ------------------------ ##
3122 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3123 # &scan_texinfo_file ($FILENAME)
3124 # ------------------------------
3125 # $OUTFILE - name of the info file produced by $FILENAME.
3126 # $VFILE - name of the version.texi file used (undef if none).
3127 # @CLEAN_FILES - list of byproducts (indexes etc.)
3128 sub scan_texinfo_file ($)
3129 {
3130 my ($filename) = @_;
3132 # Some of the following extensions are always created, no matter
3133 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3134 # are only created when they are used. We used to scan $FILENAME
3135 # for their use, but that is not enough: they could be used in
3136 # included files. We can't scan included files because we don't
3137 # know the include path. Therefore we always erase these files, no
3138 # matter whether they are used or not.
3139 #
3140 # (tmp is only created if an @macro is used and a certain e-TeX
3141 # feature is not available.)
3142 my %clean_suffixes =
3143 map { $_ => 1 } (qw(aux log toc tmp
3144 cp cps
3145 fn fns
3146 ky kys
3147 vr vrs
3148 tp tps
3149 pg pgs)); # grep 'new.*index' texinfo.tex
3151 my $texi = new Automake::XFile "< $filename";
3152 verb "reading $filename";
3154 my ($outfile, $vfile);
3155 while ($_ = $texi->getline)
3156 {
3157 if (/^\@setfilename +(\S+)/)
3158 {
3159 # Honor only the first @setfilename. (It's possible to have
3160 # more occurrences later if the manual shows examples of how
3161 # to use @setfilename...)
3162 next if $outfile;
3164 $outfile = $1;
3165 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3166 {
3167 error ("$filename:$.",
3168 "output `$outfile' has unrecognized extension");
3169 return;
3170 }
3171 }
3172 # A "version.texi" file is actually any file whose name matches
3173 # "vers*.texi".
3174 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3175 {
3176 $vfile = $1;
3177 }
3179 # Try to find new or unused indexes.
3181 # Creating a new category of index.
3182 elsif (/^\@def(code)?index (\w+)/)
3183 {
3184 $clean_suffixes{$2} = 1;
3185 $clean_suffixes{"$2s"} = 1;
3186 }
3188 # Merging an index into an another.
3189 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3190 {
3191 delete $clean_suffixes{"$2s"};
3192 $clean_suffixes{"$3s"} = 1;
3193 }
3195 }
3197 if (! $outfile)
3198 {
3199 err_am "`$filename' missing \@setfilename";
3200 return;
3201 }
3203 my $infobase = basename ($filename);
3204 $infobase =~ s/\.te?xi(nfo)?$//;
3205 return ($outfile, $vfile,
3206 map { "$infobase.$_" } (sort keys %clean_suffixes));
3207 }
3210 # ($DIRSTAMP, @CLEAN_FILES)
3211 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3212 # ------------------------------------------------------------------
3213 # SOURCE - the source Texinfo file
3214 # DEST - the destination Info file
3215 # INSRC - whether DEST should be built in the source tree
3216 # DEPENDENCIES - known dependencies
3217 sub output_texinfo_build_rules ($$$@)
3218 {
3219 my ($source, $dest, $insrc, @deps) = @_;
3221 # Split `a.texi' into `a' and `.texi'.
3222 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3223 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3225 $ssfx ||= "";
3226 $dsfx ||= "";
3228 # We can output two kinds of rules: the "generic" rules use Make
3229 # suffix rules and are appropriate when $source and $dest do not lie
3230 # in a sub-directory; the "specific" rules are needed in the other
3231 # case.
3232 #
3233 # The former are output only once (this is not really apparent here,
3234 # but just remember that some logic deeper in Automake will not
3235 # output the same rule twice); while the later need to be output for
3236 # each Texinfo source.
3237 my $generic;
3238 my $makeinfoflags;
3239 my $sdir = dirname $source;
3240 if ($sdir eq '.' && dirname ($dest) eq '.')
3241 {
3242 $generic = 1;
3243 $makeinfoflags = '-I $(srcdir)';
3244 }
3245 else
3246 {
3247 $generic = 0;
3248 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3249 }
3251 # A directory can contain two kinds of info files: some built in the
3252 # source tree, and some built in the build tree. The rules are
3253 # different in each case. However we cannot output two different
3254 # set of generic rules. Because in-source builds are more usual, we
3255 # use generic rules in this case and fall back to "specific" rules
3256 # for build-dir builds. (It should not be a problem to invert this
3257 # if needed.)
3258 $generic = 0 unless $insrc;
3260 # We cannot use a suffix rule to build info files with an empty
3261 # extension. Otherwise we would output a single suffix inference
3262 # rule, with separate dependencies, as in
3263 #
3264 # .texi:
3265 # $(MAKEINFO) ...
3266 # foo.info: foo.texi
3267 #
3268 # which confuse Solaris make. (See the Autoconf manual for
3269 # details.) Therefore we use a specific rule in this case. This
3270 # applies to info files only (dvi and pdf files always have an
3271 # extension).
3272 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3274 # If the resulting file lie into a subdirectory,
3275 # make sure this directory will exist.
3276 my $dirstamp = require_build_directory_maybe ($dest);
3278 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3280 $output_rules .= file_contents ('texibuild',
3281 new Automake::Location,
3282 DEPS => "@deps",
3283 DEST_PREFIX => $dpfx,
3284 DEST_INFO_PREFIX => $dipfx,
3285 DEST_SUFFIX => $dsfx,
3286 DIRSTAMP => $dirstamp,
3287 GENERIC => $generic,
3288 GENERIC_INFO => $generic_info,
3289 INSRC => $insrc,
3290 MAKEINFOFLAGS => $makeinfoflags,
3291 SOURCE => ($generic
3292 ? '$<' : $source),
3293 SOURCE_INFO => ($generic_info
3294 ? '$<' : $source),
3295 SOURCE_REAL => $source,
3296 SOURCE_SUFFIX => $ssfx,
3297 );
3298 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3299 }
3302 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3303 # handle_texinfo_helper ($info_texinfos)
3304 # --------------------------------------
3305 # Handle all Texinfo source; helper for handle_texinfo.
3306 sub handle_texinfo_helper ($)
3307 {
3308 my ($info_texinfos) = @_;
3309 my (@infobase, @info_deps_list, @texi_deps);
3310 my %versions;
3311 my $done = 0;
3312 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3314 # Build a regex matching user-cleaned files.
3315 my $d = var 'DISTCLEANFILES';
3316 my $c = var 'CLEANFILES';
3317 my @f = ();
3318 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3319 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3320 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3321 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3323 foreach my $texi
3324 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3325 {
3326 my $infobase = $texi;
3327 $infobase =~ s/\.(txi|texinfo|texi)$//;
3329 if ($infobase eq $texi)
3330 {
3331 # FIXME: report line number.
3332 err_am "texinfo file `$texi' has unrecognized extension";
3333 next;
3334 }
3336 push @infobase, $infobase;
3338 # If 'version.texi' is referenced by input file, then include
3339 # automatic versioning capability.
3340 my ($out_file, $vtexi, @clean_files) =
3341 scan_texinfo_file ("$relative_dir/$texi")
3342 or next;
3343 push (@mostly_cleans, @clean_files);
3345 # If the Texinfo source is in a subdirectory, create the
3346 # resulting info in this subdirectory. If it is in the current
3347 # directory, try hard to not prefix "./" because it breaks the
3348 # generic rules.
3349 my $outdir = dirname ($texi) . '/';
3350 $outdir = "" if $outdir eq './';
3351 $out_file = $outdir . $out_file;
3353 # Until Automake 1.6.3, .info files were built in the
3354 # source tree. This was an obstacle to the support of
3355 # non-distributed .info files, and non-distributed .texi
3356 # files.
3357 #
3358 # * Non-distributed .texi files is important in some packages
3359 # where .texi files are built at make time, probably using
3360 # other binaries built in the package itself, maybe using
3361 # tools or information found on the build host. Because
3362 # these files are not distributed they are always rebuilt
3363 # at make time; they should therefore not lie in the source
3364 # directory. One plan was to support this using
3365 # nodist_info_TEXINFOS or something similar. (Doing this
3366 # requires some sanity checks. For instance Automake should
3367 # not allow:
3368 # dist_info_TEXINFOS = foo.texi
3369 # nodist_foo_TEXINFOS = included.texi
3370 # because a distributed file should never depend on a
3371 # non-distributed file.)
3372 #
3373 # * If .texi files are not distributed, then .info files should
3374 # not be distributed either. There are also cases where one
3375 # wants to distribute .texi files, but does not want to
3376 # distribute the .info files. For instance the Texinfo package
3377 # distributes the tool used to build these files; it would
3378 # be a waste of space to distribute them. It's not clear
3379 # which syntax we should use to indicate that .info files should
3380 # not be distributed. Akim Demaille suggested that eventually
3381 # we switch to a new syntax:
3382 # | Maybe we should take some inspiration from what's already
3383 # | done in the rest of Automake. Maybe there is too much
3384 # | syntactic sugar here, and you want
3385 # | nodist_INFO = bar.info
3386 # | dist_bar_info_SOURCES = bar.texi
3387 # | bar_texi_DEPENDENCIES = foo.texi
3388 # | with a bit of magic to have bar.info represent the whole
3389 # | bar*info set. That's a lot more verbose that the current
3390 # | situation, but it is # not new, hence the user has less
3391 # | to learn.
3392 # |
3393 # | But there is still too much room for meaningless specs:
3394 # | nodist_INFO = bar.info
3395 # | dist_bar_info_SOURCES = bar.texi
3396 # | dist_PS = bar.ps something-written-by-hand.ps
3397 # | nodist_bar_ps_SOURCES = bar.texi
3398 # | bar_texi_DEPENDENCIES = foo.texi
3399 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3400 #
3401 # Back to the point, it should be clear that in order to support
3402 # non-distributed .info files, we need to build them in the
3403 # build tree, not in the source tree (non-distributed .texi
3404 # files are less of a problem, because we do not output build
3405 # rules for them). In Automake 1.7 .info build rules have been
3406 # largely cleaned up so that .info files get always build in the
3407 # build tree, even when distributed. The idea was that
3408 # (1) if during a VPATH build the .info file was found to be
3409 # absent or out-of-date (in the source tree or in the
3410 # build tree), Make would rebuild it in the build tree.
3411 # If an up-to-date source-tree of the .info file existed,
3412 # make would not rebuild it in the build tree.
3413 # (2) having two copies of .info files, one in the source tree
3414 # and one (newer) in the build tree is not a problem
3415 # because `make dist' always pick files in the build tree
3416 # first.
3417 # However it turned out the be a bad idea for several reasons:
3418 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3419 # like GNU Make on point (1) above. These implementations
3420 # of Make would always rebuild .info files in the build
3421 # tree, even if such files were up to date in the source
3422 # tree. Consequently, it was impossible to perform a VPATH
3423 # build of a package containing Texinfo files using these
3424 # Make implementations.
3425 # (Refer to the Autoconf Manual, section "Limitation of
3426 # Make", paragraph "VPATH", item "target lookup", for
3427 # an account of the differences between these
3428 # implementations.)
3429 # * The GNU Coding Standards require these files to be built
3430 # in the source-tree (when they are distributed, that is).
3431 # * Keeping a fresher copy of distributed files in the
3432 # build tree can be annoying during development because
3433 # - if the files is kept under CVS, you really want it
3434 # to be updated in the source tree
3435 # - it is confusing that `make distclean' does not erase
3436 # all files in the build tree.
3437 #
3438 # Consequently, starting with Automake 1.8, .info files are
3439 # built in the source tree again. Because we still plan to
3440 # support non-distributed .info files at some point, we
3441 # have a single variable ($INSRC) that controls whether
3442 # the current .info file must be built in the source tree
3443 # or in the build tree. Actually this variable is switched
3444 # off for .info files that appear to be cleaned; this is
3445 # for backward compatibility with package such as Texinfo,
3446 # which do things like
3447 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3448 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3449 # # Do not create info files for distribution.
3450 # dist-info:
3451 # in order not to distribute .info files.
3452 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3454 my $soutdir = '$(srcdir)/' . $outdir;
3455 $outdir = $soutdir if $insrc;
3457 # If user specified file_TEXINFOS, then use that as explicit
3458 # dependency list.
3459 @texi_deps = ();
3460 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3462 my $canonical = canonicalize ($infobase);
3463 if (var ($canonical . "_TEXINFOS"))
3464 {
3465 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3466 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3467 }
3469 my ($dirstamp, @cfiles) =
3470 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3471 push (@texi_cleans, @cfiles);
3473 push (@info_deps_list, $out_file);
3475 # If a vers*.texi file is needed, emit the rule.
3476 if ($vtexi)
3477 {
3478 err_am ("`$vtexi', included in `$texi', "
3479 . "also included in `$versions{$vtexi}'")
3480 if defined $versions{$vtexi};
3481 $versions{$vtexi} = $texi;
3483 # We number the stamp-vti files. This is doable since the
3484 # actual names don't matter much. We only number starting
3485 # with the second one, so that the common case looks nice.
3486 my $vti = ($done ? $done : 'vti');
3487 ++$done;
3489 # This is ugly, but it is our historical practice.
3490 if ($config_aux_dir_set_in_configure_ac)
3491 {
3492 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3493 'mdate-sh');
3494 }
3495 else
3496 {
3497 require_file_with_macro (TRUE, 'info_TEXINFOS',
3498 FOREIGN, 'mdate-sh');
3499 }
3501 my $conf_dir;
3502 if ($config_aux_dir_set_in_configure_ac)
3503 {
3504 $conf_dir = "$am_config_aux_dir/";
3505 }
3506 else
3507 {
3508 $conf_dir = '$(srcdir)/';
3509 }
3510 $output_rules .= file_contents ('texi-vers',
3511 new Automake::Location,
3512 TEXI => $texi,
3513 VTI => $vti,
3514 STAMPVTI => "${soutdir}stamp-$vti",
3515 VTEXI => "$soutdir$vtexi",
3516 MDDIR => $conf_dir,
3517 DIRSTAMP => $dirstamp);
3518 }
3519 }
3521 # Handle location of texinfo.tex.
3522 my $need_texi_file = 0;
3523 my $texinfodir;
3524 if (var ('TEXINFO_TEX'))
3525 {
3526 # The user defined TEXINFO_TEX so assume he knows what he is
3527 # doing.
3528 $texinfodir = ('$(srcdir)/'
3529 . dirname (variable_value ('TEXINFO_TEX')));
3530 }
3531 elsif (option 'cygnus')
3532 {
3533 $texinfodir = '$(top_srcdir)/../texinfo';
3534 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3535 }
3536 elsif ($config_aux_dir_set_in_configure_ac)
3537 {
3538 $texinfodir = $am_config_aux_dir;
3539 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3540 $need_texi_file = 2; # so that we require_conf_file later
3541 }
3542 else
3543 {
3544 $texinfodir = '$(srcdir)';
3545 $need_texi_file = 1;
3546 }
3547 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3549 push (@dist_targets, 'dist-info');
3551 if (! option 'no-installinfo')
3552 {
3553 # Make sure documentation is made and installed first. Use
3554 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3555 # get run twice during "make all".
3556 unshift (@all, '$(INFO_DEPS)');
3557 }
3559 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3560 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3561 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3562 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3564 # This next isn't strictly needed now -- the places that look here
3565 # could easily be changed to look in info_TEXINFOS. But this is
3566 # probably better, in case noinst_TEXINFOS is ever supported.
3567 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3569 # Do some error checking. Note that this file is not required
3570 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3571 # up above.
3572 if ($need_texi_file && ! option 'no-texinfo.tex')
3573 {
3574 if ($need_texi_file > 1)
3575 {
3576 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3577 'texinfo.tex');
3578 }
3579 else
3580 {
3581 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3582 'texinfo.tex');
3583 }
3584 }
3586 return (makefile_wrap ("", "\t ", @mostly_cleans),
3587 makefile_wrap ("", "\t ", @texi_cleans),
3588 makefile_wrap ("", "\t ", @maint_cleans));
3589 }
3592 # handle_texinfo ()
3593 # -----------------
3594 # Handle all Texinfo source.
3595 sub handle_texinfo ()
3596 {
3597 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3598 # FIXME: I think this is an obsolete future feature name.
3599 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3601 my $info_texinfos = var ('info_TEXINFOS');
3602 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3603 if ($info_texinfos)
3604 {
3605 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3606 chomp $mostlyclean;
3607 chomp $clean;
3608 chomp $maintclean;
3609 }
3611 $output_rules .= file_contents ('texinfos',
3612 new Automake::Location,
3613 MOSTLYCLEAN => $mostlyclean,
3614 TEXICLEAN => $clean,
3615 MAINTCLEAN => $maintclean,
3616 'LOCAL-TEXIS' => !!$info_texinfos);
3617 }
3620 # Handle any man pages.
3621 sub handle_man_pages
3622 {
3623 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3625 # Find all the sections in use. We do this by first looking for
3626 # "standard" sections, and then looking for any additional
3627 # sections used in man_MANS.
3628 my (%sections, %notrans_sections, %trans_sections,
3629 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3630 # We handle nodist_ for uniformity. man pages aren't distributed
3631 # by default so it isn't actually very important.
3632 foreach my $npfx ('', 'notrans_')
3633 {
3634 foreach my $pfx ('', 'dist_', 'nodist_')
3635 {
3636 # Add more sections as needed.
3637 foreach my $section ('0'..'9', 'n', 'l')
3638 {
3639 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3640 if (var ($varname))
3641 {
3642 $sections{$section} = 1;
3643 $varname = '$(' . $varname . ')';
3644 if ($npfx eq 'notrans_')
3645 {
3646 $notrans_sections{$section} = 1;
3647 $notrans_sect_vars{$varname} = 1;
3648 }
3649 else
3650 {
3651 $trans_sections{$section} = 1;
3652 $trans_sect_vars{$varname} = 1;
3653 }
3655 &push_dist_common ($varname)
3656 if $pfx eq 'dist_';
3657 }
3658 }
3660 my $varname = $npfx . $pfx . 'man_MANS';
3661 my $var = var ($varname);
3662 if ($var)
3663 {
3664 foreach ($var->value_as_list_recursive)
3665 {
3666 # A page like `foo.1c' goes into man1dir.
3667 if (/\.([0-9a-z])([a-z]*)$/)
3668 {
3669 $sections{$1} = 1;
3670 if ($npfx eq 'notrans_')
3671 {
3672 $notrans_sections{$1} = 1;
3673 }
3674 else
3675 {
3676 $trans_sections{$1} = 1;
3677 }
3678 }
3679 }
3681 $varname = '$(' . $varname . ')';
3682 if ($npfx eq 'notrans_')
3683 {
3684 $notrans_vars{$varname} = 1;
3685 }
3686 else
3687 {
3688 $trans_vars{$varname} = 1;
3689 }
3690 &push_dist_common ($varname)
3691 if $pfx eq 'dist_';
3692 }
3693 }
3694 }
3696 return unless %sections;
3698 my @unsorted_deps;
3700 # Build section independent variables.
3701 my $have_notrans = %notrans_vars;
3702 my @notrans_list = sort keys %notrans_vars;
3703 my $have_trans = %trans_vars;
3704 my @trans_list = sort keys %trans_vars;
3706 # Now for each section, generate an install and uninstall rule.
3707 # Sort sections so output is deterministic.
3708 foreach my $section (sort keys %sections)
3709 {
3710 # Build section dependent variables.
3711 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3712 my $trans_mans = $have_trans || exists $trans_sections{$section};
3713 my (%notrans_this_sect, %trans_this_sect);
3714 my $expr = 'man' . $section . '_MANS';
3715 foreach my $varname (keys %notrans_sect_vars)
3716 {
3717 if ($varname =~ /$expr/)
3718 {
3719 $notrans_this_sect{$varname} = 1;
3720 }
3721 }
3722 foreach my $varname (keys %trans_sect_vars)
3723 {
3724 if ($varname =~ /$expr/)
3725 {
3726 $trans_this_sect{$varname} = 1;
3727 }
3728 }
3729 my @notrans_sect_list = sort keys %notrans_this_sect;
3730 my @trans_sect_list = sort keys %trans_this_sect;
3731 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3732 keys %notrans_this_sect, keys %trans_this_sect);
3733 my @deps = sort @unsorted_deps;
3734 $output_rules .= &file_contents ('mans',
3735 new Automake::Location,
3736 SECTION => $section,
3737 DEPS => "@deps",
3738 NOTRANS_MANS => $notrans_mans,
3739 NOTRANS_SECT_LIST => "@notrans_sect_list",
3740 HAVE_NOTRANS => $have_notrans,
3741 NOTRANS_LIST => "@notrans_list",
3742 TRANS_MANS => $trans_mans,
3743 TRANS_SECT_LIST => "@trans_sect_list",
3744 HAVE_TRANS => $have_trans,
3745 TRANS_LIST => "@trans_list");
3746 }
3748 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3749 keys %notrans_sect_vars, keys %trans_sect_vars);
3750 my @mans = sort @unsorted_deps;
3751 $output_vars .= file_contents ('mans-vars',
3752 new Automake::Location,
3753 MANS => "@mans");
3755 push (@all, '$(MANS)')
3756 unless option 'no-installman';
3757 }
3759 # Handle DATA variables.
3760 sub handle_data
3761 {
3762 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3763 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3764 'ps', 'sysconf', 'sharedstate', 'localstate',
3765 'pkgdata', 'lisp', 'noinst', 'check');
3766 }
3768 # Handle TAGS.
3769 sub handle_tags
3770 {
3771 my @tag_deps = ();
3772 my @ctag_deps = ();
3773 if (var ('SUBDIRS'))
3774 {
3775 $output_rules .= ("tags-recursive:\n"
3776 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3777 # Never fail here if a subdir fails; it
3778 # isn't important.
3779 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3780 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3781 . "\tdone\n");
3782 push (@tag_deps, 'tags-recursive');
3783 &depend ('.PHONY', 'tags-recursive');
3784 &depend ('.MAKE', 'tags-recursive');
3786 $output_rules .= ("ctags-recursive:\n"
3787 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3788 # Never fail here if a subdir fails; it
3789 # isn't important.
3790 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3791 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3792 . "\tdone\n");
3793 push (@ctag_deps, 'ctags-recursive');
3794 &depend ('.PHONY', 'ctags-recursive');
3795 &depend ('.MAKE', 'ctags-recursive');
3796 }
3798 if (&saw_sources_p (1)
3799 || var ('ETAGS_ARGS')
3800 || @tag_deps)
3801 {
3802 my @config;
3803 foreach my $spec (@config_headers)
3804 {
3805 my ($out, @ins) = split_config_file_spec ($spec);
3806 foreach my $in (@ins)
3807 {
3808 # If the config header source is in this directory,
3809 # require it.
3810 push @config, basename ($in)
3811 if $relative_dir eq dirname ($in);
3812 }
3813 }
3814 $output_rules .= &file_contents ('tags',
3815 new Automake::Location,
3816 CONFIG => "@config",
3817 TAGSDIRS => "@tag_deps",
3818 CTAGSDIRS => "@ctag_deps");
3820 set_seen 'TAGS_DEPENDENCIES';
3821 }
3822 elsif (reject_var ('TAGS_DEPENDENCIES',
3823 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3824 . "without\nsources or `ETAGS_ARGS'"))
3825 {
3826 }
3827 else
3828 {
3829 # Every Makefile must define some sort of TAGS rule.
3830 # Otherwise, it would be possible for a top-level "make TAGS"
3831 # to fail because some subdirectory failed.
3832 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3833 # Ditto ctags.
3834 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3835 }
3836 }
3838 # Handle multilib support.
3839 sub handle_multilib
3840 {
3841 if ($seen_multilib && $relative_dir eq '.')
3842 {
3843 $output_rules .= &file_contents ('multilib', new Automake::Location);
3844 push (@all, 'all-multi');
3845 }
3846 }
3849 # user_phony_rule ($NAME)
3850 # -----------------------
3851 # Return false if rule $NAME does not exist. Otherwise,
3852 # declare it as phony, complete its definition (in case it is
3853 # conditional), and return its Automake::Rule instance.
3854 sub user_phony_rule ($)
3855 {
3856 my ($name) = @_;
3857 my $rule = rule $name;
3858 if ($rule)
3859 {
3860 depend ('.PHONY', $name);
3861 # Define $NAME in all condition where it is not already defined,
3862 # so that it is always OK to depend on $NAME.
3863 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3864 {
3865 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3866 $c, INTERNAL);
3867 $output_rules .= $c->subst_string . "$name:\n";
3868 }
3869 }
3870 return $rule;
3871 }
3874 # $BOOLEAN
3875 # &for_dist_common ($A, $B)
3876 # -------------------------
3877 # Subroutine for &handle_dist: sort files to dist.
3878 #
3879 # We put README first because it then becomes easier to make a
3880 # Usenet-compliant shar file (in these, README must be first).
3881 #
3882 # FIXME: do more ordering of files here.
3883 sub for_dist_common
3884 {
3885 return 0
3886 if $a eq $b;
3887 return -1
3888 if $a eq 'README';
3889 return 1
3890 if $b eq 'README';
3891 return $a cmp $b;
3892 }
3894 # handle_dist
3895 # -----------
3896 # Handle 'dist' target.
3897 sub handle_dist ()
3898 {
3899 # Substitutions for distdir.am
3900 my %transform;
3902 # Define DIST_SUBDIRS. This must always be done, regardless of the
3903 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3904 my $subdirs = var ('SUBDIRS');
3905 if ($subdirs)
3906 {
3907 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3908 # to all possible directories, and use it. If DIST_SUBDIRS is
3909 # defined, just use it.
3911 # Note that we check DIST_SUBDIRS first on purpose, so that
3912 # we don't call has_conditional_contents for now reason.
3913 # (In the past one project used so many conditional subdirectories
3914 # that calling has_conditional_contents on SUBDIRS caused
3915 # automake to grow to 150Mb -- this should not happen with
3916 # the current implementation of has_conditional_contents,
3917 # but it's more efficient to avoid the call anyway.)
3918 if (var ('DIST_SUBDIRS'))
3919 {
3920 }
3921 elsif ($subdirs->has_conditional_contents)
3922 {
3923 define_pretty_variable
3924 ('DIST_SUBDIRS', TRUE, INTERNAL,
3925 uniq ($subdirs->value_as_list_recursive));
3926 }
3927 else
3928 {
3929 # We always define this because that is what `distclean'
3930 # wants.
3931 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3932 '$(SUBDIRS)');
3933 }
3934 }
3936 # The remaining definitions are only required when a dist target is used.
3937 return if option 'no-dist';
3939 # At least one of the archive formats must be enabled.
3940 if ($relative_dir eq '.')
3941 {
3942 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3943 $archive_defined ||=
3944 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3945 error (option 'no-dist-gzip',
3946 "no-dist-gzip specified but no dist-* specified, "
3947 . "at least one archive format must be enabled")
3948 unless $archive_defined;
3949 }
3951 # Look for common files that should be included in distribution.
3952 # If the aux dir is set, and it does not have a Makefile.am, then
3953 # we check for these files there as well.
3954 my $check_aux = 0;
3955 if ($relative_dir eq '.'
3956 && $config_aux_dir_set_in_configure_ac)
3957 {
3958 if (! &is_make_dir ($config_aux_dir))
3959 {
3960 $check_aux = 1;
3961 }
3962 }
3963 foreach my $cfile (@common_files)
3964 {
3965 if (dir_has_case_matching_file ($relative_dir, $cfile)
3966 # The file might be absent, but if it can be built it's ok.
3967 || rule $cfile)
3968 {
3969 &push_dist_common ($cfile);
3970 }
3972 # Don't use `elsif' here because a file might meaningfully
3973 # appear in both directories.
3974 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3975 {
3976 &push_dist_common ("$config_aux_dir/$cfile")
3977 }
3978 }
3980 # We might copy elements from $configure_dist_common to
3981 # %dist_common if we think we need to. If the file appears in our
3982 # directory, we would have discovered it already, so we don't
3983 # check that. But if the file is in a subdir without a Makefile,
3984 # we want to distribute it here if we are doing `.'. Ugly!
3985 if ($relative_dir eq '.')
3986 {
3987 foreach my $file (split (' ' , $configure_dist_common))
3988 {
3989 push_dist_common ($file)
3990 unless is_make_dir (dirname ($file));
3991 }
3992 }
3994 # Files to distributed. Don't use ->value_as_list_recursive
3995 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3996 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3997 @dist_common = uniq (sort for_dist_common (@dist_common));
3998 variable_delete 'DIST_COMMON';
3999 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
4001 # Now that we've processed DIST_COMMON, disallow further attempts
4002 # to set it.
4003 $handle_dist_run = 1;
4005 # Scan EXTRA_DIST to see if we need to distribute anything from a
4006 # subdir. If so, add it to the list. I didn't want to do this
4007 # originally, but there were so many requests that I finally
4008 # relented.
4009 my $extra_dist = var ('EXTRA_DIST');
4011 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
4012 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
4014 # If the target `dist-hook' exists, make sure it is run. This
4015 # allows users to do random weird things to the distribution
4016 # before it is packaged up.
4017 push (@dist_targets, 'dist-hook')
4018 if user_phony_rule 'dist-hook';
4019 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
4021 my $flm = option ('filename-length-max');
4022 my $filename_filter = $flm ? '.' x $flm->[1] : '';
4024 $output_rules .= &file_contents ('distdir',
4025 new Automake::Location,
4026 %transform,
4027 FILENAME_FILTER => $filename_filter);
4028 }
4031 # check_directory ($NAME, $WHERE)
4032 # -------------------------------
4033 # Ensure $NAME is a directory, and that it uses a sane name.
4034 # Use $WHERE as a location in the diagnostic, if any.
4035 sub check_directory ($$)
4036 {
4037 my ($dir, $where) = @_;
4039 error $where, "required directory $relative_dir/$dir does not exist"
4040 unless -d "$relative_dir/$dir";
4042 # If an `obj/' directory exists, BSD make will enter it before
4043 # reading `Makefile'. Hence the `Makefile' in the current directory
4044 # will not be read.
4045 #
4046 # % cat Makefile
4047 # all:
4048 # echo Hello
4049 # % cat obj/Makefile
4050 # all:
4051 # echo World
4052 # % make # GNU make
4053 # echo Hello
4054 # Hello
4055 # % pmake # BSD make
4056 # echo World
4057 # World
4058 msg ('portability', $where,
4059 "naming a subdirectory `obj' causes troubles with BSD make")
4060 if $dir eq 'obj';
4062 # `aux' is probably the most important of the following forbidden name,
4063 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4064 msg ('portability', $where,
4065 "name `$dir' is reserved on W32 and DOS platforms")
4066 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4067 }
4069 # check_directories_in_var ($VARIABLE)
4070 # ------------------------------------
4071 # Recursively check all items in variables $VARIABLE as directories
4072 sub check_directories_in_var ($)
4073 {
4074 my ($var) = @_;
4075 $var->traverse_recursively
4076 (sub
4077 {
4078 my ($var, $val, $cond, $full_cond) = @_;
4079 check_directory ($val, $var->rdef ($cond)->location);
4080 return ();
4081 },
4082 undef,
4083 skip_ac_subst => 1);
4084 }
4086 # &handle_subdirs ()
4087 # ------------------
4088 # Handle subdirectories.
4089 sub handle_subdirs ()
4090 {
4091 my $subdirs = var ('SUBDIRS');
4092 return
4093 unless $subdirs;
4095 check_directories_in_var $subdirs;
4097 my $dsubdirs = var ('DIST_SUBDIRS');
4098 check_directories_in_var $dsubdirs
4099 if $dsubdirs;
4101 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4102 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4103 }
4106 # ($REGEN, @DEPENDENCIES)
4107 # &scan_aclocal_m4
4108 # ----------------
4109 # If aclocal.m4 creation is automated, return the list of its dependencies.
4110 sub scan_aclocal_m4 ()
4111 {
4112 my $regen_aclocal = 0;
4114 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4115 set_seen 'CONFIGURE_DEPENDENCIES';
4117 if (-f 'aclocal.m4')
4118 {
4119 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4121 my $aclocal = new Automake::XFile "< aclocal.m4";
4122 my $line = $aclocal->getline;
4123 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4124 }
4126 my @ac_deps = ();
4128 if (set_seen ('ACLOCAL_M4_SOURCES'))
4129 {
4130 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4131 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4132 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4133 . "It should be safe to simply remove it.");
4134 }
4136 # Note that it might be possible that aclocal.m4 doesn't exist but
4137 # should be auto-generated. This case probably isn't very
4138 # important.
4140 return ($regen_aclocal, @ac_deps);
4141 }
4144 # Helper function for substitute_ac_subst_variables.
4145 sub substitute_ac_subst_variables_worker($)
4146 {
4147 my ($token) = @_;
4148 return "\@$token\@" if var $token;
4149 return "\${$token\}";
4150 }
4152 # substitute_ac_subst_variables ($TEXT)
4153 # -------------------------------------
4154 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4155 # variable.
4156 sub substitute_ac_subst_variables ($)
4157 {
4158 my ($text) = @_;
4159 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4160 return $text;
4161 }
4163 # @DEPENDENCIES
4164 # &prepend_srcdir (@INPUTS)
4165 # -------------------------
4166 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4167 # if an input file has a directory part the same as the current
4168 # directory, then the directory part is simply replaced by $(srcdir).
4169 # But if the directory part is different, then $(top_srcdir) is
4170 # prepended.
4171 sub prepend_srcdir (@)
4172 {
4173 my (@inputs) = @_;
4174 my @newinputs;
4176 foreach my $single (@inputs)
4177 {
4178 if (dirname ($single) eq $relative_dir)
4179 {
4180 push (@newinputs, '$(srcdir)/' . basename ($single));
4181 }
4182 else
4183 {
4184 push (@newinputs, '$(top_srcdir)/' . $single);
4185 }
4186 }
4187 return @newinputs;
4188 }
4190 # @DEPENDENCIES
4191 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4192 # ---------------------------------------------------
4193 # Compute a list of dependencies appropriate for the rebuild
4194 # rule of
4195 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4196 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4197 sub rewrite_inputs_into_dependencies ($@)
4198 {
4199 my ($file, @inputs) = @_;
4200 my @res = ();
4202 for my $i (@inputs)
4203 {
4204 # We cannot create dependencies on shell variables.
4205 next if (substitute_ac_subst_variables $i) =~ /\$/;
4207 if (exists $ac_config_files_location{$i} && $i ne $file)
4208 {
4209 my $di = dirname $i;
4210 if ($di eq $relative_dir)
4211 {
4212 $i = basename $i;
4213 }
4214 # In the top-level Makefile we do not use $(top_builddir), because
4215 # we are already there, and since the targets are built without
4216 # a $(top_builddir), it helps BSD Make to match them with
4217 # dependencies.
4218 elsif ($relative_dir ne '.')
4219 {
4220 $i = '$(top_builddir)/' . $i;
4221 }
4222 }
4223 else
4224 {
4225 msg ('error', $ac_config_files_location{$file},
4226 "required file `$i' not found")
4227 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4228 ($i) = prepend_srcdir ($i);
4229 push_dist_common ($i);
4230 }
4231 push @res, $i;
4232 }
4233 return @res;
4234 }
4238 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4239 # ------------------------------------------------------------------
4240 # Handle remaking and configure stuff.
4241 # We need the name of the input file, to do proper remaking rules.
4242 sub handle_configure ($$$@)
4243 {
4244 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4246 prog_error 'empty @inputs'
4247 unless @inputs;
4249 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4250 $makefile_in);
4251 my $rel_makefile = basename $makefile;
4253 my $colon_infile = ':' . join (':', @inputs);
4254 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4255 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4256 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4257 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4258 @configure_deps, @aclocal_m4_deps,
4259 '$(top_srcdir)/' . $configure_ac);
4260 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4261 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4262 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4263 @configuredeps);
4265 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4266 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4268 $output_rules .= file_contents
4269 ('configure',
4270 new Automake::Location,
4271 MAKEFILE => $rel_makefile,
4272 'MAKEFILE-DEPS' => "@rewritten",
4273 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4274 'MAKEFILE-IN' => $rel_makefile_in,
4275 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4276 'MAKEFILE-IN-DEPS' => "@include_stack",
4277 'MAKEFILE-AM' => $rel_makefile_am,
4278 'AUTOMAKE-OPTIONS' => $automake_options,
4279 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4280 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4281 VERBOSE => verbose_flag ('GEN'));
4283 if ($relative_dir eq '.')
4284 {
4285 &push_dist_common ('acconfig.h')
4286 if -f 'acconfig.h';
4287 }
4289 # If we have a configure header, require it.
4290 my $hdr_index = 0;
4291 my @distclean_config;
4292 foreach my $spec (@config_headers)
4293 {
4294 $hdr_index += 1;
4295 # $CONFIG_H_PATH: config.h from top level.
4296 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4297 my $config_h_dir = dirname ($config_h_path);
4299 # If the header is in the current directory we want to build
4300 # the header here. Otherwise, if we're at the topmost
4301 # directory and the header's directory doesn't have a
4302 # Makefile, then we also want to build the header.
4303 if ($relative_dir eq $config_h_dir
4304 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4305 {
4306 my ($cn_sans_dir, $stamp_dir);
4307 if ($relative_dir eq $config_h_dir)
4308 {
4309 $cn_sans_dir = basename ($config_h_path);
4310 $stamp_dir = '';
4311 }
4312 else
4313 {
4314 $cn_sans_dir = $config_h_path;
4315 if ($config_h_dir eq '.')
4316 {
4317 $stamp_dir = '';
4318 }
4319 else
4320 {
4321 $stamp_dir = $config_h_dir . '/';
4322 }
4323 }
4325 # This will also distribute all inputs.
4326 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4328 # Cannot define rebuild rules for filenames with shell variables.
4329 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4331 # Header defined in this directory.
4332 my @files;
4333 if (-f $config_h_path . '.top')
4334 {
4335 push (@files, "$cn_sans_dir.top");
4336 }
4337 if (-f $config_h_path . '.bot')
4338 {
4339 push (@files, "$cn_sans_dir.bot");
4340 }
4342 push_dist_common (@files);
4344 # For now, acconfig.h can only appear in the top srcdir.
4345 if (-f 'acconfig.h')
4346 {
4347 push (@files, '$(top_srcdir)/acconfig.h');
4348 }
4350 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4351 $output_rules .=
4352 file_contents ('remake-hdr',
4353 new Automake::Location,
4354 FILES => "@files",
4355 CONFIG_H => $cn_sans_dir,
4356 CONFIG_HIN => $ins[0],
4357 CONFIG_H_DEPS => "@ins",
4358 CONFIG_H_PATH => $config_h_path,
4359 STAMP => "$stamp");
4361 push @distclean_config, $cn_sans_dir, $stamp;
4362 }
4363 }
4365 $output_rules .= file_contents ('clean-hdr',
4366 new Automake::Location,
4367 FILES => "@distclean_config")
4368 if @distclean_config;
4370 # Distribute and define mkinstalldirs only if it is already present
4371 # in the package, for backward compatibility (some people may still
4372 # use $(mkinstalldirs)).
4373 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4374 if (-f $mkidpath)
4375 {
4376 # Use require_file so that any existing script gets updated
4377 # by --force-missing.
4378 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4379 define_variable ('mkinstalldirs',
4380 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4381 }
4382 else
4383 {
4384 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4385 # at least one argument, and $(mkinstalldirs) used to work
4386 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4387 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4388 }
4390 reject_var ('CONFIG_HEADER',
4391 "`CONFIG_HEADER' is an anachronism; now determined "
4392 . "automatically\nfrom `$configure_ac'");
4394 my @config_h;
4395 foreach my $spec (@config_headers)
4396 {
4397 my ($out, @ins) = split_config_file_spec ($spec);
4398 # Generate CONFIG_HEADER define.
4399 if ($relative_dir eq dirname ($out))
4400 {
4401 push @config_h, basename ($out);
4402 }
4403 else
4404 {
4405 push @config_h, "\$(top_builddir)/$out";
4406 }
4407 }
4408 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4409 if @config_h;
4411 # Now look for other files in this directory which must be remade
4412 # by config.status, and generate rules for them.
4413 my @actual_other_files = ();
4414 # These get cleaned only in a VPATH build.
4415 my @actual_other_vpath_files = ();
4416 foreach my $lfile (@other_input_files)
4417 {
4418 my $file;
4419 my @inputs;
4420 if ($lfile =~ /^([^:]*):(.*)$/)
4421 {
4422 # This is the ":" syntax of AC_OUTPUT.
4423 $file = $1;
4424 @inputs = split (':', $2);
4425 }
4426 else
4427 {
4428 # Normal usage.
4429 $file = $lfile;
4430 @inputs = $file . '.in';
4431 }
4433 # Automake files should not be stored in here, but in %MAKE_LIST.
4434 prog_error ("$lfile in \@other_input_files\n"
4435 . "\@other_input_files = (@other_input_files)")
4436 if -f $file . '.am';
4438 my $local = basename ($file);
4440 # We skip files that aren't in this directory. However, if
4441 # the file's directory does not have a Makefile, and we are
4442 # currently doing `.', then we create a rule to rebuild the
4443 # file in the subdir.
4444 my $fd = dirname ($file);
4445 if ($fd ne $relative_dir)
4446 {
4447 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4448 {
4449 $local = $file;
4450 }
4451 else
4452 {
4453 next;
4454 }
4455 }
4457 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4459 # Cannot output rules for shell variables.
4460 next if (substitute_ac_subst_variables $local) =~ /\$/;
4462 my $condstr = '';
4463 my $cond = $ac_config_files_condition{$lfile};
4464 if (defined $cond)
4465 {
4466 $condstr = $cond->subst_string;
4467 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4468 $ac_config_files_location{$file});
4469 }
4470 $output_rules .= ($condstr . $local . ': '
4471 . '$(top_builddir)/config.status '
4472 . "@rewritten_inputs\n"
4473 . $condstr . "\t"
4474 . 'cd $(top_builddir) && '
4475 . '$(SHELL) ./config.status '
4476 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4477 . '$@'
4478 . "\n");
4479 push (@actual_other_files, $local);
4480 }
4482 # For links we should clean destinations and distribute sources.
4483 foreach my $spec (@config_links)
4484 {
4485 my ($link, $file) = split /:/, $spec;
4486 # Some people do AC_CONFIG_LINKS($computed). We only handle
4487 # the DEST:SRC form.
4488 next unless $file;
4489 my $where = $ac_config_files_location{$link};
4491 # Skip destinations that contain shell variables.
4492 if ((substitute_ac_subst_variables $link) !~ /\$/)
4493 {
4494 # We skip links that aren't in this directory. However, if
4495 # the link's directory does not have a Makefile, and we are
4496 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4497 # in `.'s Makefile.in.
4498 my $local = basename ($link);
4499 my $fd = dirname ($link);
4500 if ($fd ne $relative_dir)
4501 {
4502 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4503 {
4504 $local = $link;
4505 }
4506 else
4507 {
4508 $local = undef;
4509 }
4510 }
4511 if ($file ne $link)
4512 {
4513 push @actual_other_files, $local if $local;
4514 }
4515 else
4516 {
4517 push @actual_other_vpath_files, $local if $local;
4518 }
4519 }
4521 # Do not process sources that contain shell variables.
4522 if ((substitute_ac_subst_variables $file) !~ /\$/)
4523 {
4524 my $fd = dirname ($file);
4526 # We distribute files that are in this directory.
4527 # At the top-level (`.') we also distribute files whose
4528 # directory does not have a Makefile.
4529 if (($fd eq $relative_dir)
4530 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4531 {
4532 # The following will distribute $file as a side-effect when
4533 # it is appropriate (i.e., when $file is not already an output).
4534 # We do not need the result, just the side-effect.
4535 rewrite_inputs_into_dependencies ($link, $file);
4536 }
4537 }
4538 }
4540 # These files get removed by "make distclean".
4541 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4542 @actual_other_files);
4543 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4544 @actual_other_vpath_files);
4545 }
4547 # Handle C headers.
4548 sub handle_headers
4549 {
4550 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4551 'oldinclude', 'pkginclude',
4552 'noinst', 'check');
4553 foreach (@r)
4554 {
4555 next unless $_->[1] =~ /\..*$/;
4556 &saw_extension ($&);
4557 }
4558 }
4560 sub handle_gettext
4561 {
4562 return if ! $seen_gettext || $relative_dir ne '.';
4564 my $subdirs = var 'SUBDIRS';
4566 if (! $subdirs)
4567 {
4568 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4569 return;
4570 }
4572 # Perform some sanity checks to help users get the right setup.
4573 # We disable these tests when po/ doesn't exist in order not to disallow
4574 # unusual gettext setups.
4575 #
4576 # Bruno Haible:
4577 # | The idea is:
4578 # |
4579 # | 1) If a package doesn't have a directory po/ at top level, it
4580 # | will likely have multiple po/ directories in subpackages.
4581 # |
4582 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4583 # | is used without 'external'. It is also useful to warn for the
4584 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4585 # | warnings apply only to the usual layout of packages, therefore
4586 # | they should both be disabled if no po/ directory is found at
4587 # | top level.
4589 if (-d 'po')
4590 {
4591 my @subdirs = $subdirs->value_as_list_recursive;
4593 msg_var ('syntax', $subdirs,
4594 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4595 if ! grep ($_ eq 'po', @subdirs);
4597 # intl/ is not required when AM_GNU_GETTEXT is called with the
4598 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4599 msg_var ('syntax', $subdirs,
4600 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4601 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4602 && ! grep ($_ eq 'intl', @subdirs));
4604 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4605 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4606 msg_var ('syntax', $subdirs,
4607 "`intl' should not be in SUBDIRS when "
4608 . "AM_GNU_GETTEXT([external]) is used")
4609 if ($seen_gettext_external && ! $seen_gettext_intl
4610 && grep ($_ eq 'intl', @subdirs));
4611 }
4613 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4614 }
4616 # Handle footer elements.
4617 sub handle_footer
4618 {
4619 reject_rule ('.SUFFIXES',
4620 "use variable `SUFFIXES', not target `.SUFFIXES'");
4622 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4623 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4624 # anything else, by sticking it right after the default: target.
4625 $output_header .= ".SUFFIXES:\n";
4626 my $suffixes = var 'SUFFIXES';
4627 my @suffixes = Automake::Rule::suffixes;
4628 if (@suffixes || $suffixes)
4629 {
4630 # Make sure SUFFIXES has unique elements. Sort them to ensure
4631 # the output remains consistent. However, $(SUFFIXES) is
4632 # always at the start of the list, unsorted. This is done
4633 # because make will choose rules depending on the ordering of
4634 # suffixes, and this lets the user have some control. Push
4635 # actual suffixes, and not $(SUFFIXES). Some versions of make
4636 # do not like variable substitutions on the .SUFFIXES line.
4637 my @user_suffixes = ($suffixes
4638 ? $suffixes->value_as_list_recursive : ());
4640 my %suffixes = map { $_ => 1 } @suffixes;
4641 delete @suffixes{@user_suffixes};
4643 $output_header .= (".SUFFIXES: "
4644 . join (' ', @user_suffixes, sort keys %suffixes)
4645 . "\n");
4646 }
4648 $output_trailer .= file_contents ('footer', new Automake::Location);
4649 }
4652 # Generate `make install' rules.
4653 sub handle_install ()
4654 {
4655 $output_rules .= &file_contents
4656 ('install',
4657 new Automake::Location,
4658 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4659 ? (" \$(BUILT_SOURCES)\n"
4660 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4661 : ''),
4662 'installdirs-local' => (user_phony_rule 'installdirs-local'
4663 ? ' installdirs-local' : ''),
4664 am__installdirs => variable_value ('am__installdirs') || '');
4665 }
4668 # Deal with all and all-am.
4669 sub handle_all ($)
4670 {
4671 my ($makefile) = @_;
4673 # Output `all-am'.
4675 # Put this at the beginning for the sake of non-GNU makes. This
4676 # is still wrong if these makes can run parallel jobs. But it is
4677 # right enough.
4678 unshift (@all, basename ($makefile));
4680 foreach my $spec (@config_headers)
4681 {
4682 my ($out, @ins) = split_config_file_spec ($spec);
4683 push (@all, basename ($out))
4684 if dirname ($out) eq $relative_dir;
4685 }
4687 # Install `all' hooks.
4688 push (@all, "all-local")
4689 if user_phony_rule "all-local";
4691 &pretty_print_rule ("all-am:", "\t\t", @all);
4692 &depend ('.PHONY', 'all-am', 'all');
4695 # Output `all'.
4697 my @local_headers = ();
4698 push @local_headers, '$(BUILT_SOURCES)'
4699 if var ('BUILT_SOURCES');
4700 foreach my $spec (@config_headers)
4701 {
4702 my ($out, @ins) = split_config_file_spec ($spec);
4703 push @local_headers, basename ($out)
4704 if dirname ($out) eq $relative_dir;
4705 }
4707 if (@local_headers)
4708 {
4709 # We need to make sure config.h is built before we recurse.
4710 # We also want to make sure that built sources are built
4711 # before any ordinary `all' targets are run. We can't do this
4712 # by changing the order of dependencies to the "all" because
4713 # that breaks when using parallel makes. Instead we handle
4714 # things explicitly.
4715 $output_all .= ("all: @local_headers"
4716 . "\n\t"
4717 . '$(MAKE) $(AM_MAKEFLAGS) '
4718 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4719 . "\n\n");
4720 depend ('.MAKE', 'all');
4721 }
4722 else
4723 {
4724 $output_all .= "all: " . (var ('SUBDIRS')
4725 ? 'all-recursive' : 'all-am') . "\n\n";
4726 }
4727 }
4730 # &do_check_merge_target ()
4731 # -------------------------
4732 # Handle check merge target specially.
4733 sub do_check_merge_target ()
4734 {
4735 # Include user-defined local form of target.
4736 push @check_tests, 'check-local'
4737 if user_phony_rule 'check-local';
4739 # In --cygnus mode, check doesn't depend on all.
4740 if (option 'cygnus')
4741 {
4742 # Just run the local check rules.
4743 pretty_print_rule ('check-am:', "\t\t", @check);
4744 }
4745 else
4746 {
4747 # The check target must depend on the local equivalent of
4748 # `all', to ensure all the primary targets are built. Then it
4749 # must build the local check rules.
4750 $output_rules .= "check-am: all-am\n";
4751 if (@check)
4752 {
4753 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4754 @check);
4755 depend ('.MAKE', 'check-am');
4756 }
4757 }
4758 if (@check_tests)
4759 {
4760 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4761 @check_tests);
4762 depend ('.MAKE', 'check-am');
4763 }
4765 depend '.PHONY', 'check', 'check-am';
4766 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4767 $output_rules .= ("check: "
4768 . (var ('BUILT_SOURCES')
4769 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4770 : '')
4771 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4772 . "\n");
4773 depend ('.MAKE', 'check')
4774 if var ('BUILT_SOURCES');
4775 }
4777 # handle_clean ($MAKEFILE)
4778 # ------------------------
4779 # Handle all 'clean' targets.
4780 sub handle_clean ($)
4781 {
4782 my ($makefile) = @_;
4784 # Clean the files listed in user variables if they exist.
4785 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4786 if var ('MOSTLYCLEANFILES');
4787 $clean_files{'$(CLEANFILES)'} = CLEAN
4788 if var ('CLEANFILES');
4789 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4790 if var ('DISTCLEANFILES');
4791 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4792 if var ('MAINTAINERCLEANFILES');
4794 # Built sources are automatically removed by maintainer-clean.
4795 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4796 if var ('BUILT_SOURCES');
4798 # Compute a list of "rm"s to run for each target.
4799 my %rms = (MOSTLY_CLEAN, [],
4800 CLEAN, [],
4801 DIST_CLEAN, [],
4802 MAINTAINER_CLEAN, []);
4804 foreach my $file (keys %clean_files)
4805 {
4806 my $when = $clean_files{$file};
4807 prog_error 'invalid entry in %clean_files'
4808 unless exists $rms{$when};
4810 my $rm = "rm -f $file";
4811 # If file is a variable, make sure when don't call `rm -f' without args.
4812 $rm ="test -z \"$file\" || $rm"
4813 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4815 push @{$rms{$when}}, "\t-$rm\n";
4816 }
4818 $output_rules .= &file_contents
4819 ('clean',
4820 new Automake::Location,
4821 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4822 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4823 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4824 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4825 MAKEFILE => basename $makefile,
4826 );
4827 }
4830 # &target_cmp ($A, $B)
4831 # --------------------
4832 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4833 # other `.TARGETS' be last.
4834 sub target_cmp
4835 {
4836 return 0 if $a eq $b;
4838 my $a1 = substr ($a, 0, 1);
4839 my $b1 = substr ($b, 0, 1);
4840 if ($a1 ne $b1)
4841 {
4842 return -1 if $b1 eq '.';
4843 return 1 if $a1 eq '.';
4844 }
4845 return $a cmp $b;
4846 }
4849 # &handle_factored_dependencies ()
4850 # --------------------------------
4851 # Handle everything related to gathered targets.
4852 sub handle_factored_dependencies
4853 {
4854 # Reject bad hooks.
4855 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4856 'uninstall-exec-local', 'uninstall-exec-hook',
4857 'uninstall-dvi-local',
4858 'uninstall-html-local',
4859 'uninstall-info-local',
4860 'uninstall-pdf-local',
4861 'uninstall-ps-local')
4862 {
4863 my $x = $utarg;
4864 $x =~ s/-.*-/-/;
4865 reject_rule ($utarg, "use `$x', not `$utarg'");
4866 }
4868 reject_rule ('install-local',
4869 "use `install-data-local' or `install-exec-local', "
4870 . "not `install-local'");
4872 reject_rule ('install-hook',
4873 "use `install-data-hook' or `install-exec-hook', "
4874 . "not `install-hook'");
4876 # Install the -local hooks.
4877 foreach (keys %dependencies)
4878 {
4879 # Hooks are installed on the -am targets.
4880 s/-am$// or next;
4881 depend ("$_-am", "$_-local")
4882 if user_phony_rule "$_-local";
4883 }
4885 # Install the -hook hooks.
4886 # FIXME: Why not be as liberal as we are with -local hooks?
4887 foreach ('install-exec', 'install-data', 'uninstall')
4888 {
4889 if (user_phony_rule "$_-hook")
4890 {
4891 depend ('.MAKE', "$_-am");
4892 register_action("$_-am",
4893 ("\t\@\$(NORMAL_INSTALL)\n"
4894 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4895 }
4896 }
4898 # All the required targets are phony.
4899 depend ('.PHONY', keys %required_targets);
4901 # Actually output gathered targets.
4902 foreach (sort target_cmp keys %dependencies)
4903 {
4904 # If there is nothing about this guy, skip it.
4905 next
4906 unless (@{$dependencies{$_}}
4907 || $actions{$_}
4908 || $required_targets{$_});
4910 # Define gathered targets in undefined conditions.
4911 # FIXME: Right now we must handle .PHONY as an exception,
4912 # because people write things like
4913 # .PHONY: myphonytarget
4914 # to append dependencies. This would not work if Automake
4915 # refrained from defining its own .PHONY target as it does
4916 # with other overridden targets.
4917 # Likewise for `.MAKE'.
4918 my @undefined_conds = (TRUE,);
4919 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4920 {
4921 @undefined_conds =
4922 Automake::Rule::define ($_, 'internal',
4923 RULE_AUTOMAKE, TRUE, INTERNAL);
4924 }
4925 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4926 foreach my $cond (@undefined_conds)
4927 {
4928 my $condstr = $cond->subst_string;
4929 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4930 $output_rules .= $actions{$_} if defined $actions{$_};
4931 $output_rules .= "\n";
4932 }
4933 }
4934 }
4937 # &handle_tests_dejagnu ()
4938 # ------------------------
4939 sub handle_tests_dejagnu
4940 {
4941 push (@check_tests, 'check-DEJAGNU');
4942 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4943 }
4945 # is_valid_test_extension ($EXT)
4946 # ------------------------------
4947 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4948 # otherwise.
4949 sub is_valid_test_extension ($)
4950 {
4951 my $ext = shift;
4952 return 1
4953 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4954 return 1
4955 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4956 return 0;
4957 }
4959 # Handle TESTS variable and other checks.
4960 sub handle_tests
4961 {
4962 if (option 'dejagnu')
4963 {
4964 &handle_tests_dejagnu;
4965 }
4966 else
4967 {
4968 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4969 {
4970 reject_var ($c, "`$c' defined but `dejagnu' not in "
4971 . "`AUTOMAKE_OPTIONS'");
4972 }
4973 }
4975 if (var ('TESTS'))
4976 {
4977 push (@check_tests, 'check-TESTS');
4978 my $check_deps = "@check";
4979 $output_rules .= &file_contents ('check', new Automake::Location,
4980 COLOR => !! option 'color-tests',
4981 PARALLEL_TESTS => !! option 'parallel-tests',
4982 CHECK_DEPS => $check_deps);
4984 # Tests that are known programs should have $(EXEEXT) appended.
4985 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4986 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4987 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4988 if (var ('XFAIL_TESTS'));
4990 if (option 'parallel-tests')
4991 {
4992 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4993 my $suff = '.test';
4994 my $at_exeext = '';
4995 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4996 if ($handle_exeext)
4997 {
4998 $at_exeext = subst ('EXEEXT');
4999 $suff = $at_exeext . ' ' . $suff;
5000 }
5001 if (! var 'TEST_EXTENSIONS')
5002 {
5003 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
5004 }
5005 my $var = var 'TEST_EXTENSIONS';
5006 # Currently, we are not able to deal with conditional contents
5007 # in TEST_EXTENSIONS.
5008 if ($var->has_conditional_contents)
5009 {
5010 msg_var 'unsupported', $var,
5011 "`TEST_EXTENSIONS' cannot have conditional contents";
5012 }
5013 my @test_suffixes = $var->value_as_list_recursive;
5014 if ((my @invalid_test_suffixes =
5015 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
5016 {
5017 error $var->rdef (TRUE)->location,
5018 "invalid test extensions: @invalid_test_suffixes";
5019 }
5020 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
5021 if ($handle_exeext)
5022 {
5023 unshift (@test_suffixes, $at_exeext)
5024 unless $test_suffixes[0] eq $at_exeext;
5025 }
5026 unshift (@test_suffixes, '');
5028 transform_variable_recursively
5029 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
5030 sub {
5031 my ($subvar, $val, $cond, $full_cond) = @_;
5032 my $obj = $val;
5033 return $obj
5034 if $val =~ /^\@.*\@$/;
5035 $obj =~ s/\$\(EXEEXT\)$//o;
5037 if ($val =~ /(\$\((top_)?srcdir\))\//o)
5038 {
5039 msg ('error', $subvar->rdef ($cond)->location,
5040 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
5041 }
5043 foreach my $test_suffix (@test_suffixes)
5044 {
5045 next
5046 if $test_suffix eq $at_exeext || $test_suffix eq '';
5047 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
5048 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
5049 }
5050 $obj .= '.log';
5051 my $compile = 'LOG_COMPILE';
5052 define_variable ($compile,
5053 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
5054 $output_rules .= file_contents ('check2', new Automake::Location,
5055 GENERIC => 0,
5056 OBJ => $obj,
5057 SOURCE => $val,
5058 COMPILE =>'$(' . $compile . ')',
5059 EXT => '',
5060 am__EXEEXT => 'FALSE');
5061 return $obj;
5062 });
5064 my $nhelper=1;
5065 my $prev = 'TESTS';
5066 my $post = '';
5067 my $last_suffix = $test_suffixes[$#test_suffixes];
5068 my $cur = '';
5069 foreach my $test_suffix (@test_suffixes)
5070 {
5071 if ($test_suffix eq $last_suffix)
5072 {
5073 $cur = 'TEST_LOGS';
5074 }
5075 else
5076 {
5077 $cur = 'am__test_logs' . $nhelper;
5078 }
5079 define_variable ($cur,
5080 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5081 $post = '.log';
5082 $prev = $cur;
5083 $nhelper++;
5084 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5085 {
5086 (my $ext = $test_suffix) =~ s/^\.//;
5087 $ext = uc $ext;
5088 my $compile = $ext . '_LOG_COMPILE';
5089 define_variable ($compile,
5090 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5091 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5092 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5093 $output_rules .= file_contents ('check2', new Automake::Location,
5094 GENERIC => 1,
5095 OBJ => '',
5096 SOURCE => '$<',
5097 COMPILE => '$(' . $compile . ')',
5098 EXT => $test_suffix,
5099 am__EXEEXT => $am_exeext);
5100 }
5101 }
5103 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5105 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5106 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5107 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5108 }
5109 }
5110 }
5112 # Handle Emacs Lisp.
5113 sub handle_emacs_lisp
5114 {
5115 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5116 'lisp', 'noinst');
5118 return if ! @elfiles;
5120 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5121 map { $_->[1] } @elfiles);
5122 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5123 '$(am__ELFILES:.el=.elc)');
5124 # This one can be overridden by users.
5125 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5127 push @all, '$(ELCFILES)';
5129 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5130 'EMACS', 'lispdir');
5131 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5132 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5133 }
5135 # Handle Python
5136 sub handle_python
5137 {
5138 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5139 'noinst');
5140 return if ! @pyfiles;
5142 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5143 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5144 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5145 }
5147 # Handle Java.
5148 sub handle_java
5149 {
5150 my @sourcelist = &am_install_var ('-candist',
5151 'java', 'JAVA',
5152 'noinst', 'check');
5153 return if ! @sourcelist;
5155 my @prefixes = am_primary_prefixes ('JAVA', 1,
5156 'noinst', 'check');
5158 my $dir;
5159 my @java_sources = ();
5160 foreach my $prefix (@prefixes)
5161 {
5162 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5164 next
5165 if $curs eq 'EXTRA';
5167 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5169 if (defined $dir)
5170 {
5171 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5172 unless $curs eq $dir;
5173 }
5175 $dir = $curs;
5176 }
5178 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5179 "@java_sources");
5181 if ($dir eq 'check')
5182 {
5183 push (@check, "class$dir.stamp");
5184 }
5185 else
5186 {
5187 push (@all, "class$dir.stamp");
5188 }
5189 }
5192 # Handle some of the minor options.
5193 sub handle_minor_options
5194 {
5195 if (option 'readme-alpha')
5196 {
5197 if ($relative_dir eq '.')
5198 {
5199 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5200 {
5201 msg ('error-gnits', $package_version_location,
5202 "version `$package_version' doesn't follow " .
5203 "Gnits standards");
5204 }
5205 if (defined $1 && -f 'README-alpha')
5206 {
5207 # This means we have an alpha release. See
5208 # GNITS_VERSION_PATTERN for details.
5209 push_dist_common ('README-alpha');
5210 }
5211 }
5212 }
5213 }
5215 ################################################################
5217 # ($OUTPUT, @INPUTS)
5218 # &split_config_file_spec ($SPEC)
5219 # -------------------------------
5220 # Decode the Autoconf syntax for config files (files, headers, links
5221 # etc.).
5222 sub split_config_file_spec ($)
5223 {
5224 my ($spec) = @_;
5225 my ($output, @inputs) = split (/:/, $spec);
5227 push @inputs, "$output.in"
5228 unless @inputs;
5230 return ($output, @inputs);
5231 }
5233 # $input
5234 # locate_am (@POSSIBLE_SOURCES)
5235 # -----------------------------
5236 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5237 # This functions returns the first *.in file for which a *.am exists.
5238 # It returns undef otherwise.
5239 sub locate_am (@)
5240 {
5241 my (@rest) = @_;
5242 my $input;
5243 foreach my $file (@rest)
5244 {
5245 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5246 {
5247 $input = $file;
5248 last;
5249 }
5250 }
5251 return $input;
5252 }
5254 my %make_list;
5256 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5257 # ---------------------------------------------------
5258 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5259 # (or AC_OUTPUT).
5260 sub scan_autoconf_config_files ($$)
5261 {
5262 my ($where, $config_files) = @_;
5264 # Look at potential Makefile.am's.
5265 foreach (split ' ', $config_files)
5266 {
5267 # Must skip empty string for Perl 4.
5268 next if $_ eq "\\" || $_ eq '';
5270 # Handle $local:$input syntax.
5271 my ($local, @rest) = split (/:/);
5272 @rest = ("$local.in",) unless @rest;
5273 # Keep in sync with 'conffile-leading-dot.test'.
5274 msg ('unsupported', $where,
5275 "omit leading './' from config file names such as '$local';"
5276 . "\nremake rules might be subtly broken otherwise")
5277 if ($local =~ /^\.\//);
5278 my $input = locate_am @rest;
5279 if ($input)
5280 {
5281 # We have a file that automake should generate.
5282 $make_list{$input} = join (':', ($local, @rest));
5283 }
5284 else
5285 {
5286 # We have a file that automake should cause to be
5287 # rebuilt, but shouldn't generate itself.
5288 push (@other_input_files, $_);
5289 }
5290 $ac_config_files_location{$local} = $where;
5291 $ac_config_files_condition{$local} =
5292 new Automake::Condition (@cond_stack)
5293 if (@cond_stack);
5294 }
5295 }
5298 # &scan_autoconf_traces ($FILENAME)
5299 # ---------------------------------
5300 sub scan_autoconf_traces ($)
5301 {
5302 my ($filename) = @_;
5304 # Macros to trace, with their minimal number of arguments.
5305 #
5306 # IMPORTANT: If you add a macro here, you should also add this macro
5307 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5308 my %traced = (
5309 AC_CANONICAL_BUILD => 0,
5310 AC_CANONICAL_HOST => 0,
5311 AC_CANONICAL_TARGET => 0,
5312 AC_CONFIG_AUX_DIR => 1,
5313 AC_CONFIG_FILES => 1,
5314 AC_CONFIG_HEADERS => 1,
5315 AC_CONFIG_LIBOBJ_DIR => 1,
5316 AC_CONFIG_LINKS => 1,
5317 AC_FC_SRCEXT => 1,
5318 AC_INIT => 0,
5319 AC_LIBSOURCE => 1,
5320 AC_REQUIRE_AUX_FILE => 1,
5321 AC_SUBST_TRACE => 1,
5322 AM_AUTOMAKE_VERSION => 1,
5323 AM_CONDITIONAL => 2,
5324 AM_ENABLE_MULTILIB => 0,
5325 AM_GNU_GETTEXT => 0,
5326 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5327 AM_INIT_AUTOMAKE => 0,
5328 AM_MAINTAINER_MODE => 0,
5329 AM_PROG_AR => 0,
5330 AM_PROG_CC_C_O => 0,
5331 AM_SILENT_RULES => 0,
5332 _AM_SUBST_NOTMAKE => 1,
5333 _AM_COND_IF => 1,
5334 _AM_COND_ELSE => 1,
5335 _AM_COND_ENDIF => 1,
5336 LT_SUPPORTED_TAG => 1,
5337 _LT_AC_TAGCONFIG => 0,
5338 m4_include => 1,
5339 m4_sinclude => 1,
5340 sinclude => 1,
5341 );
5343 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5345 # Use a separator unlikely to be used, not `:', the default, which
5346 # has a precise meaning for AC_CONFIG_FILES and so on.
5347 $traces .= join (' ',
5348 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5349 (keys %traced));
5351 my $tracefh = new Automake::XFile ("$traces $filename |");
5352 verb "reading $traces";
5354 @cond_stack = ();
5355 my $where;
5357 while ($_ = $tracefh->getline)
5358 {
5359 chomp;
5360 my ($here, $depth, @args) = split (/::/);
5361 $where = new Automake::Location $here;
5362 my $macro = $args[0];
5364 prog_error ("unrequested trace `$macro'")
5365 unless exists $traced{$macro};
5367 # Skip and diagnose malformed calls.
5368 if ($#args < $traced{$macro})
5369 {
5370 msg ('syntax', $where, "not enough arguments for $macro");
5371 next;
5372 }
5374 # Alphabetical ordering please.
5375 if ($macro eq 'AC_CANONICAL_BUILD')
5376 {
5377 if ($seen_canonical <= AC_CANONICAL_BUILD)
5378 {
5379 $seen_canonical = AC_CANONICAL_BUILD;
5380 $canonical_location = $where;
5381 }
5382 }
5383 elsif ($macro eq 'AC_CANONICAL_HOST')
5384 {
5385 if ($seen_canonical <= AC_CANONICAL_HOST)
5386 {
5387 $seen_canonical = AC_CANONICAL_HOST;
5388 $canonical_location = $where;
5389 }
5390 }
5391 elsif ($macro eq 'AC_CANONICAL_TARGET')
5392 {
5393 $seen_canonical = AC_CANONICAL_TARGET;
5394 $canonical_location = $where;
5395 }
5396 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5397 {
5398 if ($seen_init_automake)
5399 {
5400 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5401 . "AM_INIT_AUTOMAKE...", partial => 1);
5402 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5403 }
5404 $config_aux_dir = $args[1];
5405 $config_aux_dir_set_in_configure_ac = 1;
5406 $relative_dir = '.';
5407 check_directory ($config_aux_dir, $where);
5408 }
5409 elsif ($macro eq 'AC_CONFIG_FILES')
5410 {
5411 # Look at potential Makefile.am's.
5412 scan_autoconf_config_files ($where, $args[1]);
5413 }
5414 elsif ($macro eq 'AC_CONFIG_HEADERS')
5415 {
5416 foreach my $spec (split (' ', $args[1]))
5417 {
5418 my ($dest, @src) = split (':', $spec);
5419 $ac_config_files_location{$dest} = $where;
5420 push @config_headers, $spec;
5421 }
5422 }
5423 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5424 {
5425 $config_libobj_dir = $args[1];
5426 $relative_dir = '.';
5427 check_directory ($config_libobj_dir, $where);
5428 }
5429 elsif ($macro eq 'AC_CONFIG_LINKS')
5430 {
5431 foreach my $spec (split (' ', $args[1]))
5432 {
5433 my ($dest, $src) = split (':', $spec);
5434 $ac_config_files_location{$dest} = $where;
5435 push @config_links, $spec;
5436 }
5437 }
5438 elsif ($macro eq 'AC_FC_SRCEXT')
5439 {
5440 my $suffix = $args[1];
5441 # These flags are used as %SOURCEFLAG% in depend2.am,
5442 # where the trailing space is important.
5443 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5444 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5445 }
5446 elsif ($macro eq 'AC_INIT')
5447 {
5448 if (defined $args[2])
5449 {
5450 $package_version = $args[2];
5451 $package_version_location = $where;
5452 }
5453 }
5454 elsif ($macro eq 'AC_LIBSOURCE')
5455 {
5456 $libsources{$args[1]} = $here;
5457 }
5458 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5459 {
5460 # Only remember the first time a file is required.
5461 $required_aux_file{$args[1]} = $where
5462 unless exists $required_aux_file{$args[1]};
5463 }
5464 elsif ($macro eq 'AC_SUBST_TRACE')
5465 {
5466 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5467 # AC_SUBST(5), then too bad.
5468 $configure_vars{$args[1]} = $where
5469 if $args[1] =~ /^\w+$/;
5470 }
5471 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5472 {
5473 error ($where,
5474 "version mismatch. This is Automake $VERSION,\n" .
5475 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5476 "comes from Automake $args[1]. You should recreate\n" .
5477 "aclocal.m4 with aclocal and run automake again.\n",
5478 # $? = 63 is used to indicate version mismatch to missing.
5479 exit_code => 63)
5480 if $VERSION ne $args[1];
5482 $seen_automake_version = 1;
5483 }
5484 elsif ($macro eq 'AM_CONDITIONAL')
5485 {
5486 $configure_cond{$args[1]} = $where;
5487 }
5488 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5489 {
5490 $seen_multilib = $where;
5491 }
5492 elsif ($macro eq 'AM_GNU_GETTEXT')
5493 {
5494 $seen_gettext = $where;
5495 $ac_gettext_location = $where;
5496 $seen_gettext_external = grep ($_ eq 'external', @args);
5497 }
5498 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5499 {
5500 $seen_gettext_intl = $where;
5501 }
5502 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5503 {
5504 $seen_init_automake = $where;
5505 if (defined $args[2])
5506 {
5507 $package_version = $args[2];
5508 $package_version_location = $where;
5509 }
5510 elsif (defined $args[1])
5511 {
5512 exit $exit_code
5513 if (process_global_option_list ($where,
5514 split (' ', $args[1])));
5515 }
5516 }
5517 elsif ($macro eq 'AM_MAINTAINER_MODE')
5518 {
5519 $seen_maint_mode = $where;
5520 }
5521 elsif ($macro eq 'AM_PROG_AR')
5522 {
5523 $seen_ar = $where;
5524 }
5525 elsif ($macro eq 'AM_PROG_CC_C_O')
5526 {
5527 $seen_cc_c_o = $where;
5528 }
5529 elsif ($macro eq 'AM_SILENT_RULES')
5530 {
5531 set_global_option ('silent-rules', $where);
5532 }
5533 elsif ($macro eq '_AM_COND_IF')
5534 {
5535 cond_stack_if ('', $args[1], $where);
5536 error ($where, "missing m4 quoting, macro depth $depth")
5537 if ($depth != 1);
5538 }
5539 elsif ($macro eq '_AM_COND_ELSE')
5540 {
5541 cond_stack_else ('!', $args[1], $where);
5542 error ($where, "missing m4 quoting, macro depth $depth")
5543 if ($depth != 1);
5544 }
5545 elsif ($macro eq '_AM_COND_ENDIF')
5546 {
5547 cond_stack_endif (undef, undef, $where);
5548 error ($where, "missing m4 quoting, macro depth $depth")
5549 if ($depth != 1);
5550 }
5551 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5552 {
5553 $ignored_configure_vars{$args[1]} = $where;
5554 }
5555 elsif ($macro eq 'm4_include'
5556 || $macro eq 'm4_sinclude'
5557 || $macro eq 'sinclude')
5558 {
5559 # Skip missing `sinclude'd files.
5560 next if $macro ne 'm4_include' && ! -f $args[1];
5562 # Some modified versions of Autoconf don't use
5563 # frozen files. Consequently it's possible that we see all
5564 # m4_include's performed during Autoconf's startup.
5565 # Obviously we don't want to distribute Autoconf's files
5566 # so we skip absolute filenames here.
5567 push @configure_deps, '$(top_srcdir)/' . $args[1]
5568 unless $here =~ m,^(?:\w:)?[\\/],;
5569 # Keep track of the greatest timestamp.
5570 if (-e $args[1])
5571 {
5572 my $mtime = mtime $args[1];
5573 $configure_deps_greatest_timestamp = $mtime
5574 if $mtime > $configure_deps_greatest_timestamp;
5575 }
5576 }
5577 elsif ($macro eq 'LT_SUPPORTED_TAG')
5578 {
5579 $libtool_tags{$args[1]} = 1;
5580 $libtool_new_api = 1;
5581 }
5582 elsif ($macro eq '_LT_AC_TAGCONFIG')
5583 {
5584 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5585 # We use it to detect whether tags are supported. Our
5586 # preferred interface is LT_SUPPORTED_TAG, but it was
5587 # introduced in Libtool 1.6.
5588 if (0 == keys %libtool_tags)
5589 {
5590 # Hardcode the tags supported by Libtool 1.5.
5591 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5592 }
5593 }
5594 }
5596 error ($where, "condition stack not properly closed")
5597 if (@cond_stack);
5599 $tracefh->close;
5600 }
5603 # &scan_autoconf_files ()
5604 # -----------------------
5605 # Check whether we use `configure.ac' or `configure.in'.
5606 # Scan it (and possibly `aclocal.m4') for interesting things.
5607 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5608 sub scan_autoconf_files ()
5609 {
5610 # Reinitialize libsources here. This isn't really necessary,
5611 # since we currently assume there is only one configure.ac. But
5612 # that won't always be the case.
5613 %libsources = ();
5615 # Keep track of the youngest configure dependency.
5616 $configure_deps_greatest_timestamp = mtime $configure_ac;
5617 if (-e 'aclocal.m4')
5618 {
5619 my $mtime = mtime 'aclocal.m4';
5620 $configure_deps_greatest_timestamp = $mtime
5621 if $mtime > $configure_deps_greatest_timestamp;
5622 }
5624 scan_autoconf_traces ($configure_ac);
5626 @configure_input_files = sort keys %make_list;
5627 # Set input and output files if not specified by user.
5628 if (! @input_files)
5629 {
5630 @input_files = @configure_input_files;
5631 %output_files = %make_list;
5632 }
5635 if (! $seen_init_automake)
5636 {
5637 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5638 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5639 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5640 . "and that aclocal.m4 was recently regenerated "
5641 . "(using aclocal).");
5642 }
5643 else
5644 {
5645 if (! $seen_automake_version)
5646 {
5647 if (-f 'aclocal.m4')
5648 {
5649 error ($seen_init_automake,
5650 "your implementation of AM_INIT_AUTOMAKE comes from " .
5651 "an\nold Automake version. You should recreate " .
5652 "aclocal.m4\nwith aclocal and run automake again.\n",
5653 # $? = 63 is used to indicate version mismatch to missing.
5654 exit_code => 63);
5655 }
5656 else
5657 {
5658 error ($seen_init_automake,
5659 "no proper implementation of AM_INIT_AUTOMAKE was " .
5660 "found,\nprobably because aclocal.m4 is missing...\n" .
5661 "You should run aclocal to create this file, then\n" .
5662 "run automake again.\n");
5663 }
5664 }
5665 }
5667 locate_aux_dir ();
5669 # Reorder @input_files so that the Makefile that distributes aux
5670 # files is processed last. This is important because each directory
5671 # can require auxiliary scripts and we should wait until they have
5672 # been installed before distributing them.
5674 # The Makefile.in that distribute the aux files is the one in
5675 # $config_aux_dir or the top-level Makefile.
5676 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5677 my @new_input_files = ();
5678 while (@input_files)
5679 {
5680 my $in = pop @input_files;
5681 my @ins = split (/:/, $output_files{$in});
5682 if (dirname ($ins[0]) eq $auxdirdist)
5683 {
5684 push @new_input_files, $in;
5685 $automake_will_process_aux_dir = 1;
5686 }
5687 else
5688 {
5689 unshift @new_input_files, $in;
5690 }
5691 }
5692 @input_files = @new_input_files;
5694 # If neither the auxdir/Makefile nor the ./Makefile are generated
5695 # by Automake, we won't distribute the aux files anyway. Assume
5696 # the user know what (s)he does, and pretend we will distribute
5697 # them to disable the error in require_file_internal.
5698 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5700 # Look for some files we need. Always check for these. This
5701 # check must be done for every run, even those where we are only
5702 # looking at a subdir Makefile. We must set relative_dir for
5703 # maybe_push_required_file to work.
5704 # Sort the files for stable verbose output.
5705 $relative_dir = '.';
5706 foreach my $file (sort keys %required_aux_file)
5707 {
5708 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5709 }
5710 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5711 if -f $config_aux_dir . '/install.sh';
5713 # Preserve dist_common for later.
5714 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5716 }
5718 ################################################################
5720 # Set up for Cygnus mode.
5721 sub check_cygnus
5722 {
5723 my $cygnus = option 'cygnus';
5724 return unless $cygnus;
5726 set_strictness ('foreign');
5727 set_option ('no-installinfo', $cygnus);
5728 set_option ('no-dependencies', $cygnus);
5729 set_option ('no-dist', $cygnus);
5731 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5732 if !$seen_maint_mode;
5733 }
5735 # Do any extra checking for GNU standards.
5736 sub check_gnu_standards
5737 {
5738 if ($relative_dir eq '.')
5739 {
5740 # In top level (or only) directory.
5741 require_file ("$am_file.am", GNU,
5742 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5744 # Accept one of these three licenses; default to COPYING.
5745 # Make sure we do not overwrite an existing license.
5746 my $license;
5747 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5748 {
5749 if (-f $_)
5750 {
5751 $license = $_;
5752 last;
5753 }
5754 }
5755 require_file ("$am_file.am", GNU, 'COPYING')
5756 unless $license;
5757 }
5759 for my $opt ('no-installman', 'no-installinfo')
5760 {
5761 msg ('error-gnu', option $opt,
5762 "option `$opt' disallowed by GNU standards")
5763 if option $opt;
5764 }
5765 }
5767 # Do any extra checking for GNITS standards.
5768 sub check_gnits_standards
5769 {
5770 if ($relative_dir eq '.')
5771 {
5772 # In top level (or only) directory.
5773 require_file ("$am_file.am", GNITS, 'THANKS');
5774 }
5775 }
5777 ################################################################
5778 #
5779 # Functions to handle files of each language.
5781 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5782 # simple formula: Return value is LANG_SUBDIR if the resulting object
5783 # file should be in a subdir if the source file is, LANG_PROCESS if
5784 # file is to be dealt with, LANG_IGNORE otherwise.
5786 # Much of the actual processing is handled in
5787 # handle_single_transform. These functions exist so that
5788 # auxiliary information can be recorded for a later cleanup pass.
5789 # Note that the calls to these functions are computed, so don't bother
5790 # searching for their precise names in the source.
5792 # This is just a convenience function that can be used to determine
5793 # when a subdir object should be used.
5794 sub lang_sub_obj
5795 {
5796 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5797 }
5799 # Rewrite a single C source file.
5800 sub lang_c_rewrite
5801 {
5802 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5804 if (option 'ansi2knr' && $base =~ /_$/)
5805 {
5806 # FIXME: include line number in error.
5807 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5808 }
5810 my $r = LANG_PROCESS;
5811 if (option 'subdir-objects')
5812 {
5813 $r = LANG_SUBDIR;
5814 if ($directory && $directory ne '.')
5815 {
5816 $base = $directory . '/' . $base;
5818 # libtool is always able to put the object at the proper place,
5819 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5820 msg_var ('portability', $var,
5821 "compiling `$base.c' in subdir requires "
5822 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5823 uniq_scope => US_GLOBAL,
5824 uniq_part => 'AM_PROG_CC_C_O subdir')
5825 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5826 }
5828 # In this case we already have the directory information, so
5829 # don't add it again.
5830 $de_ansi_files{$base} = '';
5831 }
5832 else
5833 {
5834 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5835 ? ''
5836 : "$directory/");
5837 }
5839 if (! $seen_cc_c_o
5840 && $have_per_exec_flags
5841 && ! option 'subdir-objects'
5842 && $nonansi_obj ne '.lo')
5843 {
5844 msg_var ('portability',
5845 $var, "compiling `$base.c' with per-target flags requires "
5846 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5847 uniq_scope => US_GLOBAL,
5848 uniq_part => 'AM_PROG_CC_C_O per-target')
5849 }
5851 return $r;
5852 }
5854 # Rewrite a single C++ source file.
5855 sub lang_cxx_rewrite
5856 {
5857 return &lang_sub_obj;
5858 }
5860 # Rewrite a single header file.
5861 sub lang_header_rewrite
5862 {
5863 # Header files are simply ignored.
5864 return LANG_IGNORE;
5865 }
5867 # Rewrite a single Vala source file.
5868 sub lang_vala_rewrite
5869 {
5870 my ($directory, $base, $ext) = @_;
5872 (my $newext = $ext) =~ s/vala$/c/;
5873 return (LANG_SUBDIR, $newext);
5874 }
5876 # Rewrite a single yacc file.
5877 sub lang_yacc_rewrite
5878 {
5879 my ($directory, $base, $ext) = @_;
5881 my $r = &lang_sub_obj;
5882 (my $newext = $ext) =~ tr/y/c/;
5883 return ($r, $newext);
5884 }
5886 # Rewrite a single yacc++ file.
5887 sub lang_yaccxx_rewrite
5888 {
5889 my ($directory, $base, $ext) = @_;
5891 my $r = &lang_sub_obj;
5892 (my $newext = $ext) =~ tr/y/c/;
5893 return ($r, $newext);
5894 }
5896 # Rewrite a single lex file.
5897 sub lang_lex_rewrite
5898 {
5899 my ($directory, $base, $ext) = @_;
5901 my $r = &lang_sub_obj;
5902 (my $newext = $ext) =~ tr/l/c/;
5903 return ($r, $newext);
5904 }
5906 # Rewrite a single lex++ file.
5907 sub lang_lexxx_rewrite
5908 {
5909 my ($directory, $base, $ext) = @_;
5911 my $r = &lang_sub_obj;
5912 (my $newext = $ext) =~ tr/l/c/;
5913 return ($r, $newext);
5914 }
5916 # Rewrite a single assembly file.
5917 sub lang_asm_rewrite
5918 {
5919 return &lang_sub_obj;
5920 }
5922 # Rewrite a single preprocessed assembly file.
5923 sub lang_cppasm_rewrite
5924 {
5925 return &lang_sub_obj;
5926 }
5928 # Rewrite a single Fortran 77 file.
5929 sub lang_f77_rewrite
5930 {
5931 return &lang_sub_obj;
5932 }
5934 # Rewrite a single Fortran file.
5935 sub lang_fc_rewrite
5936 {
5937 return &lang_sub_obj;
5938 }
5940 # Rewrite a single preprocessed Fortran file.
5941 sub lang_ppfc_rewrite
5942 {
5943 return &lang_sub_obj;
5944 }
5946 # Rewrite a single preprocessed Fortran 77 file.
5947 sub lang_ppf77_rewrite
5948 {
5949 return &lang_sub_obj;
5950 }
5952 # Rewrite a single ratfor file.
5953 sub lang_ratfor_rewrite
5954 {
5955 return &lang_sub_obj;
5956 }
5958 # Rewrite a single Objective C file.
5959 sub lang_objc_rewrite
5960 {
5961 return &lang_sub_obj;
5962 }
5964 # Rewrite a single Unified Parallel C file.
5965 sub lang_upc_rewrite
5966 {
5967 return &lang_sub_obj;
5968 }
5970 # Rewrite a single Java file.
5971 sub lang_java_rewrite
5972 {
5973 return LANG_SUBDIR;
5974 }
5976 # The lang_X_finish functions are called after all source file
5977 # processing is done. Each should handle defining rules for the
5978 # language, etc. A finish function is only called if a source file of
5979 # the appropriate type has been seen.
5981 sub lang_c_finish
5982 {
5983 # Push all libobjs files onto de_ansi_files. We actually only
5984 # push files which exist in the current directory, and which are
5985 # genuine source files.
5986 foreach my $file (keys %libsources)
5987 {
5988 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5989 {
5990 $de_ansi_files{$1} = ''
5991 }
5992 }
5994 if (option 'ansi2knr' && keys %de_ansi_files)
5995 {
5996 # Make all _.c files depend on their corresponding .c files.
5997 my @objects;
5998 foreach my $base (sort keys %de_ansi_files)
5999 {
6000 # Each _.c file must depend on ansi2knr; otherwise it
6001 # might be used in a parallel build before it is built.
6002 # We need to support files in the srcdir and in the build
6003 # dir (because these files might be auto-generated. But
6004 # we can't use $< -- some makes only define $< during a
6005 # suffix rule.
6006 my $ansfile = $de_ansi_files{$base} . $base . '.c';
6007 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
6008 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
6009 . '`if test -f $(srcdir)/' . $ansfile
6010 . '; then echo $(srcdir)/' . $ansfile
6011 . '; else echo ' . $ansfile . '; fi` '
6012 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
6013 . '| $(ANSI2KNR) > $@'
6014 # If ansi2knr fails then we shouldn't
6015 # create the _.c file
6016 . " || rm -f \$\@\n");
6017 push (@objects, $base . '_.$(OBJEXT)');
6018 push (@objects, $base . '_.lo')
6019 if var ('LIBTOOL');
6021 # Explicitly clean the _.c files if they are in a
6022 # subdirectory. (In the current directory they get erased
6023 # by a `rm -f *_.c' rule.)
6024 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
6025 if dirname ($base) ne '.';
6026 }
6028 # Make all _.o (and _.lo) files depend on ansi2knr.
6029 # Use a sneaky little hack to make it print nicely.
6030 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
6031 }
6032 }
6034 sub lang_vala_finish_target ($$)
6035 {
6036 my ($self, $name) = @_;
6038 my $derived = canonicalize ($name);
6039 my $var = var "${derived}_SOURCES";
6040 return unless $var;
6042 my @vala_sources = grep { /\.vala$/ } ($var->value_as_list_recursive);
6044 foreach my $vala_file (@vala_sources)
6045 {
6046 (my $c_file = $vala_file) =~ s/(.*)\.vala$/$1.c/;
6047 $output_rules .= "\$(srcdir)/$c_file: \$(srcdir)/${derived}_vala.stamp\n"
6048 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6049 . "\t\@if test -f \$@; then :; else \\\n"
6050 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
6051 . "\tfi\n"
6052 }
6054 # Add rebuild rules for generated header and vapi files
6055 my $flags = var ($derived . '_VALAFLAGS');
6056 if ($flags)
6057 {
6058 my $lastflag = '';
6059 foreach my $flag ($flags->value_as_list_recursive)
6060 {
6061 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
6062 '--vapi', '--internal-vapi', '--gir')))
6063 {
6064 my $headerfile = $flag;
6065 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
6066 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6067 . "\t\@if test -f \$@; then :; else \\\n"
6068 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
6069 . "\tfi\n";
6071 # valac is not used when building from dist tarballs
6072 # distribute the generated files
6073 push_dist_common ($headerfile);
6074 $clean_files{$headerfile} = MAINTAINER_CLEAN;
6075 }
6076 $lastflag = $flag;
6077 }
6078 }
6080 my $compile = $self->compile;
6082 # Rewrite each occurrence of `AM_VALAFLAGS' in the compile
6083 # rule into `${derived}_VALAFLAGS' if it exists.
6084 my $val = "${derived}_VALAFLAGS";
6085 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
6086 if set_seen ($val);
6088 # VALAFLAGS is a user variable (per GNU Standards),
6089 # it should not be overridden in the Makefile...
6090 check_user_variables ['VALAFLAGS'];
6092 my $dirname = dirname ($name);
6094 # Only generate C code, do not run C compiler
6095 $compile .= " -C";
6097 my $verbose = verbose_flag ('VALAC');
6098 my $silent = silent_flag ();
6100 $output_rules .=
6101 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
6102 # Since the C files generated from the vala sources depend on the
6103 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
6104 # those of the C files generated by the valac invocation below (this is
6105 # especially important on systems with sub-second timestamp resolution).
6106 # Thus we need to create the stamp file *before* invoking valac, and to
6107 # move it to its final location only after valac has been invoked.
6108 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
6109 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
6110 "\t${silent}mv -f \$\@-t \$\@\n";
6112 push_dist_common ("${derived}_vala.stamp");
6114 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
6115 }
6117 # Add output rules to invoke valac and create stamp file as a witness
6118 # to handle multiple outputs. This function is called after all source
6119 # file processing is done.
6120 sub lang_vala_finish
6121 {
6122 my ($self) = @_;
6124 foreach my $prog (keys %known_programs)
6125 {
6126 lang_vala_finish_target ($self, $prog);
6127 }
6129 while (my ($name) = each %known_libraries)
6130 {
6131 lang_vala_finish_target ($self, $name);
6132 }
6133 }
6135 # The built .c files should be cleaned only on maintainer-clean
6136 # as the .c files are distributed. This function is called for each
6137 # .vala source file.
6138 sub lang_vala_target_hook
6139 {
6140 my ($self, $aggregate, $output, $input, %transform) = @_;
6142 $clean_files{$output} = MAINTAINER_CLEAN;
6143 }
6145 # This is a yacc helper which is called whenever we have decided to
6146 # compile a yacc file.
6147 sub lang_yacc_target_hook
6148 {
6149 my ($self, $aggregate, $output, $input, %transform) = @_;
6151 my $flag = $aggregate . "_YFLAGS";
6152 my $flagvar = var $flag;
6153 my $YFLAGSvar = var 'YFLAGS';
6154 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6155 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6156 {
6157 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6158 my $header = $output_base . '.h';
6160 # Found a `-d' that applies to the compilation of this file.
6161 # Add a dependency for the generated header file, and arrange
6162 # for that file to be included in the distribution.
6163 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6164 RULE_AUTOMAKE, TRUE,
6165 INTERNAL))
6166 {
6167 my $condstr = $cond->subst_string;
6168 $output_rules .=
6169 "$condstr${header}: $output\n"
6170 # Recover from removal of $header
6171 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
6172 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
6173 }
6174 # Distribute the generated file, unless its .y source was
6175 # listed in a nodist_ variable. (&handle_source_transform
6176 # will set DIST_SOURCE.)
6177 &push_dist_common ($header)
6178 if $transform{'DIST_SOURCE'};
6180 # If the files are built in the build directory, then we want
6181 # to remove them with `make clean'. If they are in srcdir
6182 # they shouldn't be touched. However, we can't determine this
6183 # statically, and the GNU rules say that yacc/lex output files
6184 # should be removed by maintainer-clean. So that's what we
6185 # do.
6186 $clean_files{$header} = MAINTAINER_CLEAN;
6187 }
6188 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6189 # See the comment above for $HEADER.
6190 $clean_files{$output} = MAINTAINER_CLEAN;
6191 }
6193 # This is a lex helper which is called whenever we have decided to
6194 # compile a lex file.
6195 sub lang_lex_target_hook
6196 {
6197 my ($self, $aggregate, $output, $input) = @_;
6198 # If the files are built in the build directory, then we want to
6199 # remove them with `make clean'. If they are in srcdir they
6200 # shouldn't be touched. However, we can't determine this
6201 # statically, and the GNU rules say that yacc/lex output files
6202 # should be removed by maintainer-clean. So that's what we do.
6203 $clean_files{$output} = MAINTAINER_CLEAN;
6204 }
6206 # This is a helper for both lex and yacc.
6207 sub yacc_lex_finish_helper
6208 {
6209 return if defined $language_scratch{'lex-yacc-done'};
6210 $language_scratch{'lex-yacc-done'} = 1;
6212 # FIXME: for now, no line number.
6213 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6214 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6215 }
6217 sub lang_yacc_finish
6218 {
6219 return if defined $language_scratch{'yacc-done'};
6220 $language_scratch{'yacc-done'} = 1;
6222 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6224 yacc_lex_finish_helper;
6225 }
6228 sub lang_lex_finish
6229 {
6230 return if defined $language_scratch{'lex-done'};
6231 $language_scratch{'lex-done'} = 1;
6233 yacc_lex_finish_helper;
6234 }
6237 # Given a hash table of linker names, pick the name that has the most
6238 # precedence. This is lame, but something has to have global
6239 # knowledge in order to eliminate the conflict. Add more linkers as
6240 # required.
6241 sub resolve_linker
6242 {
6243 my (%linkers) = @_;
6245 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6246 {
6247 return $l if defined $linkers{$l};
6248 }
6249 return 'LINK';
6250 }
6252 # Called to indicate that an extension was used.
6253 sub saw_extension
6254 {
6255 my ($ext) = @_;
6256 if (! defined $extension_seen{$ext})
6257 {
6258 $extension_seen{$ext} = 1;
6259 }
6260 else
6261 {
6262 ++$extension_seen{$ext};
6263 }
6264 }
6266 # Return the number of files seen for a given language. Knows about
6267 # special cases we care about. FIXME: this is hideous. We need
6268 # something that involves real language objects. For instance yacc
6269 # and yaccxx could both derive from a common yacc class which would
6270 # know about the strange ylwrap requirement. (Or better yet we could
6271 # just not support legacy yacc!)
6272 sub count_files_for_language
6273 {
6274 my ($name) = @_;
6276 my @names;
6277 if ($name eq 'yacc' || $name eq 'yaccxx')
6278 {
6279 @names = ('yacc', 'yaccxx');
6280 }
6281 elsif ($name eq 'lex' || $name eq 'lexxx')
6282 {
6283 @names = ('lex', 'lexxx');
6284 }
6285 else
6286 {
6287 @names = ($name);
6288 }
6290 my $r = 0;
6291 foreach $name (@names)
6292 {
6293 my $lang = $languages{$name};
6294 foreach my $ext (@{$lang->extensions})
6295 {
6296 $r += $extension_seen{$ext}
6297 if defined $extension_seen{$ext};
6298 }
6299 }
6301 return $r
6302 }
6304 # Called to ask whether source files have been seen . If HEADERS is 1,
6305 # headers can be included.
6306 sub saw_sources_p
6307 {
6308 my ($headers) = @_;
6310 # count all the sources
6311 my $count = 0;
6312 foreach my $val (values %extension_seen)
6313 {
6314 $count += $val;
6315 }
6317 if (!$headers)
6318 {
6319 $count -= count_files_for_language ('header');
6320 }
6322 return $count > 0;
6323 }
6326 # register_language (%ATTRIBUTE)
6327 # ------------------------------
6328 # Register a single language.
6329 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6330 sub register_language (%)
6331 {
6332 my (%option) = @_;
6334 # Set the defaults.
6335 $option{'ansi'} = 0
6336 unless defined $option{'ansi'};
6337 $option{'autodep'} = 'no'
6338 unless defined $option{'autodep'};
6339 $option{'linker'} = ''
6340 unless defined $option{'linker'};
6341 $option{'flags'} = []
6342 unless defined $option{'flags'};
6343 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6344 unless defined $option{'output_extensions'};
6345 $option{'nodist_specific'} = 0
6346 unless defined $option{'nodist_specific'};
6348 my $lang = new Language (%option);
6350 # Fill indexes.
6351 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6352 $languages{$lang->name} = $lang;
6353 my $link = $lang->linker;
6354 if ($link)
6355 {
6356 if (exists $link_languages{$link})
6357 {
6358 prog_error ("`$link' has different definitions in "
6359 . $lang->name . " and " . $link_languages{$link}->name)
6360 if $lang->link ne $link_languages{$link}->link;
6361 }
6362 else
6363 {
6364 $link_languages{$link} = $lang;
6365 }
6366 }
6368 # Update the pattern of known extensions.
6369 accept_extensions (@{$lang->extensions});
6371 # Upate the $suffix_rule map.
6372 foreach my $suffix (@{$lang->extensions})
6373 {
6374 foreach my $dest (&{$lang->output_extensions} ($suffix))
6375 {
6376 register_suffix_rule (INTERNAL, $suffix, $dest);
6377 }
6378 }
6379 }
6381 # derive_suffix ($EXT, $OBJ)
6382 # --------------------------
6383 # This function is used to find a path from a user-specified suffix $EXT
6384 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6385 sub derive_suffix ($$)
6386 {
6387 my ($source_ext, $obj) = @_;
6389 while (! $extension_map{$source_ext}
6390 && $source_ext ne $obj
6391 && exists $suffix_rules->{$source_ext}
6392 && exists $suffix_rules->{$source_ext}{$obj})
6393 {
6394 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6395 }
6397 return $source_ext;
6398 }
6401 ################################################################
6403 # Pretty-print something and append to output_rules.
6404 sub pretty_print_rule
6405 {
6406 $output_rules .= &makefile_wrap (@_);
6407 }
6410 ################################################################
6413 ## -------------------------------- ##
6414 ## Handling the conditional stack. ##
6415 ## -------------------------------- ##
6418 # $STRING
6419 # make_conditional_string ($NEGATE, $COND)
6420 # ----------------------------------------
6421 sub make_conditional_string ($$)
6422 {
6423 my ($negate, $cond) = @_;
6424 $cond = "${cond}_TRUE"
6425 unless $cond =~ /^TRUE|FALSE$/;
6426 $cond = Automake::Condition::conditional_negate ($cond)
6427 if $negate;
6428 return $cond;
6429 }
6432 my %_am_macro_for_cond =
6433 (
6434 AMDEP => "one of the compiler tests\n"
6435 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6436 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6437 am__fastdepCC => 'AC_PROG_CC',
6438 am__fastdepCCAS => 'AM_PROG_AS',
6439 am__fastdepCXX => 'AC_PROG_CXX',
6440 am__fastdepGCJ => 'AM_PROG_GCJ',
6441 am__fastdepOBJC => 'AC_PROG_OBJC',
6442 am__fastdepUPC => 'AM_PROG_UPC'
6443 );
6445 # $COND
6446 # cond_stack_if ($NEGATE, $COND, $WHERE)
6447 # --------------------------------------
6448 sub cond_stack_if ($$$)
6449 {
6450 my ($negate, $cond, $where) = @_;
6452 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6453 {
6454 my $text = "$cond does not appear in AM_CONDITIONAL";
6455 my $scope = US_LOCAL;
6456 if (exists $_am_macro_for_cond{$cond})
6457 {
6458 my $mac = $_am_macro_for_cond{$cond};
6459 $text .= "\n The usual way to define `$cond' is to add ";
6460 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6461 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6462 # These warnings appear in Automake files (depend2.am),
6463 # so there is no need to display them more than once:
6464 $scope = US_GLOBAL;
6465 }
6466 error $where, $text, uniq_scope => $scope;
6467 }
6469 push (@cond_stack, make_conditional_string ($negate, $cond));
6471 return new Automake::Condition (@cond_stack);
6472 }
6475 # $COND
6476 # cond_stack_else ($NEGATE, $COND, $WHERE)
6477 # ----------------------------------------
6478 sub cond_stack_else ($$$)
6479 {
6480 my ($negate, $cond, $where) = @_;
6482 if (! @cond_stack)
6483 {
6484 error $where, "else without if";
6485 return FALSE;
6486 }
6488 $cond_stack[$#cond_stack] =
6489 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6491 # If $COND is given, check against it.
6492 if (defined $cond)
6493 {
6494 $cond = make_conditional_string ($negate, $cond);
6496 error ($where, "else reminder ($negate$cond) incompatible with "
6497 . "current conditional: $cond_stack[$#cond_stack]")
6498 if $cond_stack[$#cond_stack] ne $cond;
6499 }
6501 return new Automake::Condition (@cond_stack);
6502 }
6505 # $COND
6506 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6507 # -----------------------------------------
6508 sub cond_stack_endif ($$$)
6509 {
6510 my ($negate, $cond, $where) = @_;
6511 my $old_cond;
6513 if (! @cond_stack)
6514 {
6515 error $where, "endif without if";
6516 return TRUE;
6517 }
6519 # If $COND is given, check against it.
6520 if (defined $cond)
6521 {
6522 $cond = make_conditional_string ($negate, $cond);
6524 error ($where, "endif reminder ($negate$cond) incompatible with "
6525 . "current conditional: $cond_stack[$#cond_stack]")
6526 if $cond_stack[$#cond_stack] ne $cond;
6527 }
6529 pop @cond_stack;
6531 return new Automake::Condition (@cond_stack);
6532 }
6538 ## ------------------------ ##
6539 ## Handling the variables. ##
6540 ## ------------------------ ##
6543 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6544 # -----------------------------------------------------
6545 # Like define_variable, but the value is a list, and the variable may
6546 # be defined conditionally. The second argument is the condition
6547 # under which the value should be defined; this should be the empty
6548 # string to define the variable unconditionally. The third argument
6549 # is a list holding the values to use for the variable. The value is
6550 # pretty printed in the output file.
6551 sub define_pretty_variable ($$$@)
6552 {
6553 my ($var, $cond, $where, @value) = @_;
6555 if (! vardef ($var, $cond))
6556 {
6557 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6558 '', $where, VAR_PRETTY);
6559 rvar ($var)->rdef ($cond)->set_seen;
6560 }
6561 }
6564 # define_variable ($VAR, $VALUE, $WHERE)
6565 # --------------------------------------
6566 # Define a new Automake Makefile variable VAR to VALUE, but only if
6567 # not already defined.
6568 sub define_variable ($$$)
6569 {
6570 my ($var, $value, $where) = @_;
6571 define_pretty_variable ($var, TRUE, $where, $value);
6572 }
6575 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6576 # ------------------------------------------------------------
6577 # Define the $VAR which content is the list of file names composed of
6578 # a @BASENAME and the $EXTENSION.
6579 sub define_files_variable ($\@$$)
6580 {
6581 my ($var, $basename, $extension, $where) = @_;
6582 define_variable ($var,
6583 join (' ', map { "$_.$extension" } @$basename),
6584 $where);
6585 }
6588 # Like define_variable, but define a variable to be the configure
6589 # substitution by the same name.
6590 sub define_configure_variable ($)
6591 {
6592 my ($var) = @_;
6594 my $pretty = VAR_ASIS;
6595 my $owner = VAR_CONFIGURE;
6597 # Some variables we do not want to output. For instance it
6598 # would be a bad idea to output `U = @U@` when `@U@` can be
6599 # substituted as `\`.
6600 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6602 # ANSI2KNR is a variable that Automake wants to redefine, so
6603 # it must be owned by Automake. (It is also used as a proof
6604 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6605 # omit the AC_SUBST.)
6606 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6608 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6609 '', $configure_vars{$var}, $pretty);
6610 }
6613 # define_compiler_variable ($LANG)
6614 # --------------------------------
6615 # Define a compiler variable. We also handle defining the `LT'
6616 # version of the command when using libtool.
6617 sub define_compiler_variable ($)
6618 {
6619 my ($lang) = @_;
6621 my ($var, $value) = ($lang->compiler, $lang->compile);
6622 my $libtool_tag = '';
6623 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6624 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6625 &define_variable ($var, $value, INTERNAL);
6626 if (var ('LIBTOOL'))
6627 {
6628 my $verbose = define_verbose_libtool ();
6629 &define_variable ("LT$var",
6630 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6631 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6632 INTERNAL);
6633 }
6634 define_verbose_tagvar ($lang->ccer || 'GEN');
6635 }
6638 # define_linker_variable ($LANG)
6639 # ------------------------------
6640 # Define linker variables.
6641 sub define_linker_variable ($)
6642 {
6643 my ($lang) = @_;
6645 my $libtool_tag = '';
6646 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6647 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6648 # CCLD = $(CC).
6649 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6650 # CCLINK = $(CCLD) blah blah...
6651 my $link = '';
6652 if (var ('LIBTOOL'))
6653 {
6654 my $verbose = define_verbose_libtool ();
6655 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6656 . "\$(LIBTOOLFLAGS) --mode=link ";
6657 }
6658 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6659 &define_variable ($lang->compiler, $lang);
6660 &define_verbose_tagvar ($lang->lder || 'GEN');
6661 }
6663 sub define_per_target_linker_variable ($$)
6664 {
6665 my ($linker, $target) = @_;
6667 # If the user wrote a custom link command, we don't define ours.
6668 return "${target}_LINK"
6669 if set_seen "${target}_LINK";
6671 my $xlink = $linker ? $linker : 'LINK';
6673 my $lang = $link_languages{$xlink};
6674 prog_error "Unknown language for linker variable `$xlink'"
6675 unless $lang;
6677 my $link_command = $lang->link;
6678 if (var 'LIBTOOL')
6679 {
6680 my $libtool_tag = '';
6681 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6682 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6684 my $verbose = define_verbose_libtool ();
6685 $link_command =
6686 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6687 . "--mode=link " . $link_command;
6688 }
6690 # Rewrite each occurrence of `AM_$flag' in the link
6691 # command into `${derived}_$flag' if it exists.
6692 my $orig_command = $link_command;
6693 my @flags = (@{$lang->flags}, 'LDFLAGS');
6694 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6695 for my $flag (@flags)
6696 {
6697 my $val = "${target}_$flag";
6698 $link_command =~ s/\(AM_$flag\)/\($val\)/
6699 if set_seen ($val);
6700 }
6702 # If the computed command is the same as the generic command, use
6703 # the command linker variable.
6704 return ($lang->linker, $lang->lder)
6705 if $link_command eq $orig_command;
6707 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6708 return ("${target}_LINK", $lang->lder);
6709 }
6711 ################################################################
6713 # &check_trailing_slash ($WHERE, $LINE)
6714 # -------------------------------------
6715 # Return 1 iff $LINE ends with a slash.
6716 # Might modify $LINE.
6717 sub check_trailing_slash ($\$)
6718 {
6719 my ($where, $line) = @_;
6721 # Ignore `##' lines.
6722 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6724 # Catch and fix a common error.
6725 msg "syntax", $where, "whitespace following trailing backslash"
6726 if $$line =~ s/\\\s+\n$/\\\n/;
6728 return $$line =~ /\\$/;
6729 }
6732 # &read_am_file ($AMFILE, $WHERE)
6733 # -------------------------------
6734 # Read Makefile.am and set up %contents. Simultaneously copy lines
6735 # from Makefile.am into $output_trailer, or define variables as
6736 # appropriate. NOTE we put rules in the trailer section. We want
6737 # user rules to come after our generated stuff.
6738 sub read_am_file ($$)
6739 {
6740 my ($amfile, $where) = @_;
6742 my $am_file = new Automake::XFile ("< $amfile");
6743 verb "reading $amfile";
6745 # Keep track of the youngest output dependency.
6746 my $mtime = mtime $amfile;
6747 $output_deps_greatest_timestamp = $mtime
6748 if $mtime > $output_deps_greatest_timestamp;
6750 my $spacing = '';
6751 my $comment = '';
6752 my $blank = 0;
6753 my $saw_bk = 0;
6754 my $var_look = VAR_ASIS;
6756 use constant IN_VAR_DEF => 0;
6757 use constant IN_RULE_DEF => 1;
6758 use constant IN_COMMENT => 2;
6759 my $prev_state = IN_RULE_DEF;
6761 while ($_ = $am_file->getline)
6762 {
6763 $where->set ("$amfile:$.");
6764 if (/$IGNORE_PATTERN/o)
6765 {
6766 # Merely delete comments beginning with two hashes.
6767 }
6768 elsif (/$WHITE_PATTERN/o)
6769 {
6770 error $where, "blank line following trailing backslash"
6771 if $saw_bk;
6772 # Stick a single white line before the incoming macro or rule.
6773 $spacing = "\n";
6774 $blank = 1;
6775 # Flush all comments seen so far.
6776 if ($comment ne '')
6777 {
6778 $output_vars .= $comment;
6779 $comment = '';
6780 }
6781 }
6782 elsif (/$COMMENT_PATTERN/o)
6783 {
6784 # Stick comments before the incoming macro or rule. Make
6785 # sure a blank line precedes the first block of comments.
6786 $spacing = "\n" unless $blank;
6787 $blank = 1;
6788 $comment .= $spacing . $_;
6789 $spacing = '';
6790 $prev_state = IN_COMMENT;
6791 }
6792 else
6793 {
6794 last;
6795 }
6796 $saw_bk = check_trailing_slash ($where, $_);
6797 }
6799 # We save the conditional stack on entry, and then check to make
6800 # sure it is the same on exit. This lets us conditionally include
6801 # other files.
6802 my @saved_cond_stack = @cond_stack;
6803 my $cond = new Automake::Condition (@cond_stack);
6805 my $last_var_name = '';
6806 my $last_var_type = '';
6807 my $last_var_value = '';
6808 my $last_where;
6809 # FIXME: shouldn't use $_ in this loop; it is too big.
6810 while ($_)
6811 {
6812 $where->set ("$amfile:$.");
6814 # Make sure the line is \n-terminated.
6815 chomp;
6816 $_ .= "\n";
6818 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6819 # used by users. @MAINT@ is an anachronism now.
6820 $_ =~ s/\@MAINT\@//g
6821 unless $seen_maint_mode;
6823 my $new_saw_bk = check_trailing_slash ($where, $_);
6825 if (/$IGNORE_PATTERN/o)
6826 {
6827 # Merely delete comments beginning with two hashes.
6829 # Keep any backslash from the previous line.
6830 $new_saw_bk = $saw_bk;
6831 }
6832 elsif (/$WHITE_PATTERN/o)
6833 {
6834 # Stick a single white line before the incoming macro or rule.
6835 $spacing = "\n";
6836 error $where, "blank line following trailing backslash"
6837 if $saw_bk;
6838 }
6839 elsif (/$COMMENT_PATTERN/o)
6840 {
6841 error $where, "comment following trailing backslash"
6842 if $saw_bk && $prev_state != IN_COMMENT;
6844 # Stick comments before the incoming macro or rule.
6845 $comment .= $spacing . $_;
6846 $spacing = '';
6847 $prev_state = IN_COMMENT;
6848 }
6849 elsif ($saw_bk)
6850 {
6851 if ($prev_state == IN_RULE_DEF)
6852 {
6853 my $cond = new Automake::Condition @cond_stack;
6854 $output_trailer .= $cond->subst_string;
6855 $output_trailer .= $_;
6856 }
6857 elsif ($prev_state == IN_COMMENT)
6858 {
6859 # If the line doesn't start with a `#', add it.
6860 # We do this because a continued comment like
6861 # # A = foo \
6862 # bar \
6863 # baz
6864 # is not portable. BSD make doesn't honor
6865 # escaped newlines in comments.
6866 s/^#?/#/;
6867 $comment .= $spacing . $_;
6868 }
6869 else # $prev_state == IN_VAR_DEF
6870 {
6871 $last_var_value .= ' '
6872 unless $last_var_value =~ /\s$/;
6873 $last_var_value .= $_;
6875 if (!/\\$/)
6876 {
6877 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6878 $last_var_type, $cond,
6879 $last_var_value, $comment,
6880 $last_where, VAR_ASIS)
6881 if $cond != FALSE;
6882 $comment = $spacing = '';
6883 }
6884 }
6885 }
6887 elsif (/$IF_PATTERN/o)
6888 {
6889 $cond = cond_stack_if ($1, $2, $where);
6890 }
6891 elsif (/$ELSE_PATTERN/o)
6892 {
6893 $cond = cond_stack_else ($1, $2, $where);
6894 }
6895 elsif (/$ENDIF_PATTERN/o)
6896 {
6897 $cond = cond_stack_endif ($1, $2, $where);
6898 }
6900 elsif (/$RULE_PATTERN/o)
6901 {
6902 # Found a rule.
6903 $prev_state = IN_RULE_DEF;
6905 # For now we have to output all definitions of user rules
6906 # and can't diagnose duplicates (see the comment in
6907 # Automake::Rule::define). So we go on and ignore the return value.
6908 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6910 check_variable_expansions ($_, $where);
6912 $output_trailer .= $comment . $spacing;
6913 my $cond = new Automake::Condition @cond_stack;
6914 $output_trailer .= $cond->subst_string;
6915 $output_trailer .= $_;
6916 $comment = $spacing = '';
6917 }
6918 elsif (/$ASSIGNMENT_PATTERN/o)
6919 {
6920 # Found a macro definition.
6921 $prev_state = IN_VAR_DEF;
6922 $last_var_name = $1;
6923 $last_var_type = $2;
6924 $last_var_value = $3;
6925 $last_where = $where->clone;
6926 if ($3 ne '' && substr ($3, -1) eq "\\")
6927 {
6928 # We preserve the `\' because otherwise the long lines
6929 # that are generated will be truncated by broken
6930 # `sed's.
6931 $last_var_value = $3 . "\n";
6932 }
6933 # Normally we try to output variable definitions in the
6934 # same format they were input. However, POSIX compliant
6935 # systems are not required to support lines longer than
6936 # 2048 bytes (most notably, some sed implementation are
6937 # limited to 4000 bytes, and sed is used by config.status
6938 # to rewrite Makefile.in into Makefile). Moreover nobody
6939 # would really write such long lines by hand since it is
6940 # hardly maintainable. So if a line is longer that 1000
6941 # bytes (an arbitrary limit), assume it has been
6942 # automatically generated by some tools, and flatten the
6943 # variable definition. Otherwise, keep the variable as it
6944 # as been input.
6945 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6947 if (!/\\$/)
6948 {
6949 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6950 $last_var_type, $cond,
6951 $last_var_value, $comment,
6952 $last_where, $var_look)
6953 if $cond != FALSE;
6954 $comment = $spacing = '';
6955 $var_look = VAR_ASIS;
6956 }
6957 }
6958 elsif (/$INCLUDE_PATTERN/o)
6959 {
6960 my $path = $1;
6962 if ($path =~ s/^\$\(top_srcdir\)\///)
6963 {
6964 push (@include_stack, "\$\(top_srcdir\)/$path");
6965 # Distribute any included file.
6967 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6968 # otherwise OSF make will implicitly copy the included
6969 # file in the build tree during `make distdir' to satisfy
6970 # the dependency.
6971 # (subdircond2.test and subdircond3.test will fail.)
6972 push_dist_common ("\$\(top_srcdir\)/$path");
6973 }
6974 else
6975 {
6976 $path =~ s/\$\(srcdir\)\///;
6977 push (@include_stack, "\$\(srcdir\)/$path");
6978 # Always use the $(srcdir) prefix in DIST_COMMON,
6979 # otherwise OSF make will implicitly copy the included
6980 # file in the build tree during `make distdir' to satisfy
6981 # the dependency.
6982 # (subdircond2.test and subdircond3.test will fail.)
6983 push_dist_common ("\$\(srcdir\)/$path");
6984 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6985 }
6986 $where->push_context ("`$path' included from here");
6987 &read_am_file ($path, $where);
6988 $where->pop_context;
6989 }
6990 else
6991 {
6992 # This isn't an error; it is probably a continued rule.
6993 # In fact, this is what we assume.
6994 $prev_state = IN_RULE_DEF;
6995 check_variable_expansions ($_, $where);
6996 $output_trailer .= $comment . $spacing;
6997 my $cond = new Automake::Condition @cond_stack;
6998 $output_trailer .= $cond->subst_string;
6999 $output_trailer .= $_;
7000 $comment = $spacing = '';
7001 error $where, "`#' comment at start of rule is unportable"
7002 if $_ =~ /^\t\s*\#/;
7003 }
7005 $saw_bk = $new_saw_bk;
7006 $_ = $am_file->getline;
7007 }
7009 $output_trailer .= $comment;
7011 error ($where, "trailing backslash on last line")
7012 if $saw_bk;
7014 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
7015 : "too many conditionals closed in include file"))
7016 if "@saved_cond_stack" ne "@cond_stack";
7017 }
7020 # define_standard_variables ()
7021 # ----------------------------
7022 # A helper for read_main_am_file which initializes configure variables
7023 # and variables from header-vars.am.
7024 sub define_standard_variables
7025 {
7026 my $saved_output_vars = $output_vars;
7027 my ($comments, undef, $rules) =
7028 file_contents_internal (1, "$libdir/am/header-vars.am",
7029 new Automake::Location);
7031 foreach my $var (sort keys %configure_vars)
7032 {
7033 &define_configure_variable ($var);
7034 }
7036 $output_vars .= $comments . $rules;
7037 }
7039 # Read main am file.
7040 sub read_main_am_file
7041 {
7042 my ($amfile) = @_;
7044 # This supports the strange variable tricks we are about to play.
7045 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
7046 if (scalar (variables) > 0);
7048 # Generate copyright header for generated Makefile.in.
7049 # We do discard the output of predefined variables, handled below.
7050 $output_vars = ("# $in_file_name generated by automake "
7051 . $VERSION . " from $am_file_name.\n");
7052 $output_vars .= '# ' . subst ('configure_input') . "\n";
7053 $output_vars .= $gen_copyright;
7055 # We want to predefine as many variables as possible. This lets
7056 # the user set them with `+=' in Makefile.am.
7057 &define_standard_variables;
7059 # Read user file, which might override some of our values.
7060 &read_am_file ($amfile, new Automake::Location);
7061 }
7065 ################################################################
7067 # $FLATTENED
7068 # &flatten ($STRING)
7069 # ------------------
7070 # Flatten the $STRING and return the result.
7071 sub flatten
7072 {
7073 $_ = shift;
7075 s/\\\n//somg;
7076 s/\s+/ /g;
7077 s/^ //;
7078 s/ $//;
7080 return $_;
7081 }
7084 # transform_token ($TOKEN, \%PAIRS, $KEY)
7085 # =======================================
7086 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
7087 # (which should be ?KEY? or any of the special %% requests)..
7088 sub transform_token ($$$)
7089 {
7090 my ($token, $transform, $key) = @_;
7091 my $res = $transform->{$key};
7092 prog_error "Unknown key `$key' in `$token'" unless defined $res;
7093 return $res;
7094 }
7097 # transform ($TOKEN, \%PAIRS)
7098 # ===========================
7099 # If ($TOKEN, $VAL) is in %PAIRS:
7100 # - replaces %KEY% with $VAL,
7101 # - enables/disables ?KEY? and ?!KEY?,
7102 # - replaces %?KEY% with TRUE or FALSE.
7103 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
7104 # IFTRUE / IFFALSE, as appropriate.
7105 sub transform ($$)
7106 {
7107 my ($token, $transform) = @_;
7109 # %KEY%.
7110 # Must be before the following pattern to exclude the case
7111 # when there is neither IFTRUE nor IFFALSE.
7112 if ($token =~ /^%([\w\-]+)%$/)
7113 {
7114 return transform_token ($token, $transform, $1);
7115 }
7116 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
7117 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
7118 {
7119 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
7120 }
7121 # %?KEY%.
7122 elsif ($token =~ /^%\?([\w\-]+)%$/)
7123 {
7124 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
7125 }
7126 # ?KEY? and ?!KEY?.
7127 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
7128 {
7129 my $neg = ($1 eq '!') ? 1 : 0;
7130 my $val = transform_token ($token, $transform, $2);
7131 return (!!$val == $neg) ? '##%' : '';
7132 }
7133 else
7134 {
7135 prog_error "Unknown request format: $token";
7136 }
7137 }
7140 # @PARAGRAPHS
7141 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7142 # ------------------------------------------
7143 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7144 # paragraphs.
7145 sub make_paragraphs ($%)
7146 {
7147 my ($file, %transform) = @_;
7149 # Complete %transform with global options.
7150 # Note that %transform goes last, so it overrides global options.
7151 %transform = ('CYGNUS' => !! option 'cygnus',
7152 'MAINTAINER-MODE'
7153 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7155 'XZ' => !! option 'dist-xz',
7156 'LZMA' => !! option 'dist-lzma',
7157 'LZIP' => !! option 'dist-lzip',
7158 'BZIP2' => !! option 'dist-bzip2',
7159 'COMPRESS' => !! option 'dist-tarZ',
7160 'GZIP' => ! option 'no-dist-gzip',
7161 'SHAR' => !! option 'dist-shar',
7162 'ZIP' => !! option 'dist-zip',
7164 'INSTALL-INFO' => ! option 'no-installinfo',
7165 'INSTALL-MAN' => ! option 'no-installman',
7166 'HAVE-MANS' => !! var ('MANS'),
7167 'CK-NEWS' => !! option 'check-news',
7169 'SUBDIRS' => !! var ('SUBDIRS'),
7170 'TOPDIR_P' => $relative_dir eq '.',
7172 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7173 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7174 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7176 'LIBTOOL' => !! var ('LIBTOOL'),
7177 'NONLIBTOOL' => 1,
7178 'FIRST' => ! $transformed_files{$file},
7179 %transform);
7181 $transformed_files{$file} = 1;
7182 $_ = $am_file_cache{$file};
7184 if (! defined $_)
7185 {
7186 verb "reading $file";
7187 # Swallow the whole file.
7188 my $fc_file = new Automake::XFile "< $file";
7189 my $saved_dollar_slash = $/;
7190 undef $/;
7191 $_ = $fc_file->getline;
7192 $/ = $saved_dollar_slash;
7193 $fc_file->close;
7195 # Remove ##-comments.
7196 # Besides we don't need more than two consecutive new-lines.
7197 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7199 $am_file_cache{$file} = $_;
7200 }
7202 # Substitute Automake template tokens.
7203 s/(?: % \?? [\w\-]+ %
7204 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7205 | \? !? [\w\-]+ \?
7206 )/transform($&, \%transform)/gex;
7207 # transform() may have added some ##%-comments to strip.
7208 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7209 # ####### and do not remove the latter.)
7210 s/^[ \t]*(?:##%)+.*\n//gm;
7212 # Split at unescaped new lines.
7213 my @lines = split (/(?<!\\)\n/, $_);
7214 my @res;
7216 while (defined ($_ = shift @lines))
7217 {
7218 my $paragraph = $_;
7219 # If we are a rule, eat as long as we start with a tab.
7220 if (/$RULE_PATTERN/smo)
7221 {
7222 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7223 {
7224 $paragraph .= "\n$_";
7225 }
7226 unshift (@lines, $_);
7227 }
7229 # If we are a comments, eat as much comments as you can.
7230 elsif (/$COMMENT_PATTERN/smo)
7231 {
7232 while (defined ($_ = shift @lines)
7233 && $_ =~ /$COMMENT_PATTERN/smo)
7234 {
7235 $paragraph .= "\n$_";
7236 }
7237 unshift (@lines, $_);
7238 }
7240 push @res, $paragraph;
7241 }
7243 return @res;
7244 }
7248 # ($COMMENT, $VARIABLES, $RULES)
7249 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7250 # -------------------------------------------------------------
7251 # Return contents of a file from $libdir/am, automatically skipping
7252 # macros or rules which are already known. $IS_AM iff the caller is
7253 # reading an Automake file (as opposed to the user's Makefile.am).
7254 sub file_contents_internal ($$$%)
7255 {
7256 my ($is_am, $file, $where, %transform) = @_;
7258 $where->set ($file);
7260 my $result_vars = '';
7261 my $result_rules = '';
7262 my $comment = '';
7263 my $spacing = '';
7265 # The following flags are used to track rules spanning across
7266 # multiple paragraphs.
7267 my $is_rule = 0; # 1 if we are processing a rule.
7268 my $discard_rule = 0; # 1 if the current rule should not be output.
7270 # We save the conditional stack on entry, and then check to make
7271 # sure it is the same on exit. This lets us conditionally include
7272 # other files.
7273 my @saved_cond_stack = @cond_stack;
7274 my $cond = new Automake::Condition (@cond_stack);
7276 foreach (make_paragraphs ($file, %transform))
7277 {
7278 # FIXME: no line number available.
7279 $where->set ($file);
7281 # Sanity checks.
7282 error $where, "blank line following trailing backslash:\n$_"
7283 if /\\$/;
7284 error $where, "comment following trailing backslash:\n$_"
7285 if /\\#/;
7287 if (/^$/)
7288 {
7289 $is_rule = 0;
7290 # Stick empty line before the incoming macro or rule.
7291 $spacing = "\n";
7292 }
7293 elsif (/$COMMENT_PATTERN/mso)
7294 {
7295 $is_rule = 0;
7296 # Stick comments before the incoming macro or rule.
7297 $comment = "$_\n";
7298 }
7300 # Handle inclusion of other files.
7301 elsif (/$INCLUDE_PATTERN/o)
7302 {
7303 if ($cond != FALSE)
7304 {
7305 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7306 $where->push_context ("`$file' included from here");
7307 # N-ary `.=' fails.
7308 my ($com, $vars, $rules)
7309 = file_contents_internal ($is_am, $file, $where, %transform);
7310 $where->pop_context;
7311 $comment .= $com;
7312 $result_vars .= $vars;
7313 $result_rules .= $rules;
7314 }
7315 }
7317 # Handling the conditionals.
7318 elsif (/$IF_PATTERN/o)
7319 {
7320 $cond = cond_stack_if ($1, $2, $file);
7321 }
7322 elsif (/$ELSE_PATTERN/o)
7323 {
7324 $cond = cond_stack_else ($1, $2, $file);
7325 }
7326 elsif (/$ENDIF_PATTERN/o)
7327 {
7328 $cond = cond_stack_endif ($1, $2, $file);
7329 }
7331 # Handling rules.
7332 elsif (/$RULE_PATTERN/mso)
7333 {
7334 $is_rule = 1;
7335 $discard_rule = 0;
7336 # Separate relationship from optional actions: the first
7337 # `new-line tab" not preceded by backslash (continuation
7338 # line).
7339 my $paragraph = $_;
7340 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7341 my ($relationship, $actions) = ($1, $2 || '');
7343 # Separate targets from dependencies: the first colon.
7344 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7345 my ($targets, $dependencies) = ($1, $2);
7346 # Remove the escaped new lines.
7347 # I don't know why, but I have to use a tmp $flat_deps.
7348 my $flat_deps = &flatten ($dependencies);
7349 my @deps = split (' ', $flat_deps);
7351 foreach (split (' ', $targets))
7352 {
7353 # FIXME: 1. We are not robust to people defining several targets
7354 # at once, only some of them being in %dependencies. The
7355 # actions from the targets in %dependencies are usually generated
7356 # from the content of %actions, but if some targets in $targets
7357 # are not in %dependencies the ELSE branch will output
7358 # a rule for all $targets (i.e. the targets which are both
7359 # in %dependencies and $targets will have two rules).
7361 # FIXME: 2. The logic here is not able to output a
7362 # multi-paragraph rule several time (e.g. for each condition
7363 # it is defined for) because it only knows the first paragraph.
7365 # FIXME: 3. We are not robust to people defining a subset
7366 # of a previously defined "multiple-target" rule. E.g.
7367 # `foo:' after `foo bar:'.
7369 # Output only if not in FALSE.
7370 if (defined $dependencies{$_} && $cond != FALSE)
7371 {
7372 &depend ($_, @deps);
7373 register_action ($_, $actions);
7374 }
7375 else
7376 {
7377 # Free-lance dependency. Output the rule for all the
7378 # targets instead of one by one.
7379 my @undefined_conds =
7380 Automake::Rule::define ($targets, $file,
7381 $is_am ? RULE_AUTOMAKE : RULE_USER,
7382 $cond, $where);
7383 for my $undefined_cond (@undefined_conds)
7384 {
7385 my $condparagraph = $paragraph;
7386 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7387 $result_rules .= "$spacing$comment$condparagraph\n";
7388 }
7389 if (scalar @undefined_conds == 0)
7390 {
7391 # Remember to discard next paragraphs
7392 # if they belong to this rule.
7393 # (but see also FIXME: #2 above.)
7394 $discard_rule = 1;
7395 }
7396 $comment = $spacing = '';
7397 last;
7398 }
7399 }
7400 }
7402 elsif (/$ASSIGNMENT_PATTERN/mso)
7403 {
7404 my ($var, $type, $val) = ($1, $2, $3);
7405 error $where, "variable `$var' with trailing backslash"
7406 if /\\$/;
7408 $is_rule = 0;
7410 Automake::Variable::define ($var,
7411 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7412 $type, $cond, $val, $comment, $where,
7413 VAR_ASIS)
7414 if $cond != FALSE;
7416 $comment = $spacing = '';
7417 }
7418 else
7419 {
7420 # This isn't an error; it is probably some tokens which
7421 # configure is supposed to replace, such as `@SET-MAKE@',
7422 # or some part of a rule cut by an if/endif.
7423 if (! $cond->false && ! ($is_rule && $discard_rule))
7424 {
7425 s/^/$cond->subst_string/gme;
7426 $result_rules .= "$spacing$comment$_\n";
7427 }
7428 $comment = $spacing = '';
7429 }
7430 }
7432 error ($where, @cond_stack ?
7433 "unterminated conditionals: @cond_stack" :
7434 "too many conditionals closed in include file")
7435 if "@saved_cond_stack" ne "@cond_stack";
7437 return ($comment, $result_vars, $result_rules);
7438 }
7441 # $CONTENTS
7442 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7443 # ------------------------------------------------
7444 # Return contents of a file from $libdir/am, automatically skipping
7445 # macros or rules which are already known.
7446 sub file_contents ($$%)
7447 {
7448 my ($basename, $where, %transform) = @_;
7449 my ($comments, $variables, $rules) =
7450 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7451 %transform);
7452 return "$comments$variables$rules";
7453 }
7456 # @PREFIX
7457 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7458 # -----------------------------------------------------
7459 # Find all variable prefixes that are used for install directories. A
7460 # prefix `zar' qualifies iff:
7461 #
7462 # * `zardir' is a variable.
7463 # * `zar_PRIMARY' is a variable.
7464 #
7465 # As a side effect, it looks for misspellings. It is an error to have
7466 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7467 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7468 # of the same name (with "dir" appended) exists. For instance, if the
7469 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7470 # This is to provide a little extra flexibility in those cases which
7471 # need it.
7472 sub am_primary_prefixes ($$@)
7473 {
7474 my ($primary, $can_dist, @prefixes) = @_;
7476 local $_;
7477 my %valid = map { $_ => 0 } @prefixes;
7478 $valid{'EXTRA'} = 0;
7479 foreach my $var (variables $primary)
7480 {
7481 # Automake is allowed to define variables that look like primaries
7482 # but which aren't. E.g. INSTALL_sh_DATA.
7483 # Autoconf can also define variables like INSTALL_DATA, so
7484 # ignore all configure variables (at least those which are not
7485 # redefined in Makefile.am).
7486 # FIXME: We should make sure that these variables are not
7487 # conditionally defined (or else adjust the condition below).
7488 my $def = $var->def (TRUE);
7489 next if $def && $def->owner != VAR_MAKEFILE;
7491 my $varname = $var->name;
7493 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7494 {
7495 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7496 if ($dist ne '' && ! $can_dist)
7497 {
7498 err_var ($var,
7499 "invalid variable `$varname': `dist' is forbidden");
7500 }
7501 # Standard directories must be explicitly allowed.
7502 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7503 {
7504 err_var ($var,
7505 "`${X}dir' is not a legitimate directory " .
7506 "for `$primary'");
7507 }
7508 # A not explicitly valid directory is allowed if Xdir is defined.
7509 elsif (! defined $valid{$X} &&
7510 $var->requires_variables ("`$varname' is used", "${X}dir"))
7511 {
7512 # Nothing to do. Any error message has been output
7513 # by $var->requires_variables.
7514 }
7515 else
7516 {
7517 # Ensure all extended prefixes are actually used.
7518 $valid{"$base$dist$X"} = 1;
7519 }
7520 }
7521 else
7522 {
7523 prog_error "unexpected variable name: $varname";
7524 }
7525 }
7527 # Return only those which are actually defined.
7528 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7529 }
7532 # Handle `where_HOW' variable magic. Does all lookups, generates
7533 # install code, and possibly generates code to define the primary
7534 # variable. The first argument is the name of the .am file to munge,
7535 # the second argument is the primary variable (e.g. HEADERS), and all
7536 # subsequent arguments are possible installation locations.
7537 #
7538 # Returns list of [$location, $value] pairs, where
7539 # $value's are the values in all where_HOW variable, and $location
7540 # there associated location (the place here their parent variables were
7541 # defined).
7542 #
7543 # FIXME: this should be rewritten to be cleaner. It should be broken
7544 # up into multiple functions.
7545 #
7546 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7547 sub am_install_var
7548 {
7549 my (@args) = @_;
7551 my $do_require = 1;
7552 my $can_dist = 0;
7553 my $default_dist = 0;
7554 while (@args)
7555 {
7556 if ($args[0] eq '-noextra')
7557 {
7558 $do_require = 0;
7559 }
7560 elsif ($args[0] eq '-candist')
7561 {
7562 $can_dist = 1;
7563 }
7564 elsif ($args[0] eq '-defaultdist')
7565 {
7566 $default_dist = 1;
7567 $can_dist = 1;
7568 }
7569 elsif ($args[0] !~ /^-/)
7570 {
7571 last;
7572 }
7573 shift (@args);
7574 }
7576 my ($file, $primary, @prefix) = @args;
7578 # Now that configure substitutions are allowed in where_HOW
7579 # variables, it is an error to actually define the primary. We
7580 # allow `JAVA', as it is customarily used to mean the Java
7581 # interpreter. This is but one of several Java hacks. Similarly,
7582 # `PYTHON' is customarily used to mean the Python interpreter.
7583 reject_var $primary, "`$primary' is an anachronism"
7584 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7586 # Get the prefixes which are valid and actually used.
7587 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7589 # If a primary includes a configure substitution, then the EXTRA_
7590 # form is required. Otherwise we can't properly do our job.
7591 my $require_extra;
7593 my @used = ();
7594 my @result = ();
7596 foreach my $X (@prefix)
7597 {
7598 my $nodir_name = $X;
7599 my $one_name = $X . '_' . $primary;
7600 my $one_var = var $one_name;
7602 my $strip_subdir = 1;
7603 # If subdir prefix should be preserved, do so.
7604 if ($nodir_name =~ /^nobase_/)
7605 {
7606 $strip_subdir = 0;
7607 $nodir_name =~ s/^nobase_//;
7608 }
7610 # If files should be distributed, do so.
7611 my $dist_p = 0;
7612 if ($can_dist)
7613 {
7614 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7615 || (! $default_dist && $nodir_name =~ /^dist_/));
7616 $nodir_name =~ s/^(dist|nodist)_//;
7617 }
7620 # Use the location of the currently processed variable.
7621 # We are not processing a particular condition, so pick the first
7622 # available.
7623 my $tmpcond = $one_var->conditions->one_cond;
7624 my $where = $one_var->rdef ($tmpcond)->location->clone;
7626 # Append actual contents of where_PRIMARY variable to
7627 # @result, skipping @substitutions@.
7628 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7629 {
7630 my ($loc, $value) = @$locvals;
7631 # Skip configure substitutions.
7632 if ($value =~ /^\@.*\@$/)
7633 {
7634 if ($nodir_name eq 'EXTRA')
7635 {
7636 error ($where,
7637 "`$one_name' contains configure substitution, "
7638 . "but shouldn't");
7639 }
7640 # Check here to make sure variables defined in
7641 # configure.ac do not imply that EXTRA_PRIMARY
7642 # must be defined.
7643 elsif (! defined $configure_vars{$one_name})
7644 {
7645 $require_extra = $one_name
7646 if $do_require;
7647 }
7648 }
7649 else
7650 {
7651 # Strip any $(EXEEXT) suffix the user might have added, or this
7652 # will confuse &handle_source_transform and &check_canonical_spelling.
7653 # We'll add $(EXEEXT) back later anyway.
7654 # Do it here rather than in handle_programs so the uniquifying at the
7655 # end of this function works.
7656 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7657 if $primary eq 'PROGRAMS';
7659 push (@result, $locvals);
7660 }
7661 }
7662 # A blatant hack: we rewrite each _PROGRAMS primary to include
7663 # EXEEXT.
7664 append_exeext { 1 } $one_name
7665 if $primary eq 'PROGRAMS';
7666 # "EXTRA" shouldn't be used when generating clean targets,
7667 # all, or install targets. We used to warn if EXTRA_FOO was
7668 # defined uselessly, but this was annoying.
7669 next
7670 if $nodir_name eq 'EXTRA';
7672 if ($nodir_name eq 'check')
7673 {
7674 push (@check, '$(' . $one_name . ')');
7675 }
7676 else
7677 {
7678 push (@used, '$(' . $one_name . ')');
7679 }
7681 # Is this to be installed?
7682 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7684 # If so, with install-exec? (or install-data?).
7685 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7687 my $check_options_p = $install_p && !! option 'std-options';
7689 # Use the location of the currently processed variable as context.
7690 $where->push_context ("while processing `$one_name'");
7692 # The variable containing all files to distribute.
7693 my $distvar = "\$($one_name)";
7694 $distvar = shadow_unconditionally ($one_name, $where)
7695 if ($dist_p && $one_var->has_conditional_contents);
7697 # Singular form of $PRIMARY.
7698 (my $one_primary = $primary) =~ s/S$//;
7699 $output_rules .= &file_contents ($file, $where,
7700 PRIMARY => $primary,
7701 ONE_PRIMARY => $one_primary,
7702 DIR => $X,
7703 NDIR => $nodir_name,
7704 BASE => $strip_subdir,
7706 EXEC => $exec_p,
7707 INSTALL => $install_p,
7708 DIST => $dist_p,
7709 DISTVAR => $distvar,
7710 'CK-OPTS' => $check_options_p);
7711 }
7713 # The JAVA variable is used as the name of the Java interpreter.
7714 # The PYTHON variable is used as the name of the Python interpreter.
7715 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7716 {
7717 # Define it.
7718 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7719 $output_vars .= "\n";
7720 }
7722 err_var ($require_extra,
7723 "`$require_extra' contains configure substitution,\n"
7724 . "but `EXTRA_$primary' not defined")
7725 if ($require_extra && ! var ('EXTRA_' . $primary));
7727 # Push here because PRIMARY might be configure time determined.
7728 push (@all, '$(' . $primary . ')')
7729 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7731 # Make the result unique. This lets the user use conditionals in
7732 # a natural way, but still lets us program lazily -- we don't have
7733 # to worry about handling a particular object more than once.
7734 # We will keep only one location per object.
7735 my %result = ();
7736 for my $pair (@result)
7737 {
7738 my ($loc, $val) = @$pair;
7739 $result{$val} = $loc;
7740 }
7741 my @l = sort keys %result;
7742 return map { [$result{$_}->clone, $_] } @l;
7743 }
7746 ################################################################
7748 # Each key in this hash is the name of a directory holding a
7749 # Makefile.in. These variables are local to `is_make_dir'.
7750 my %make_dirs = ();
7751 my $make_dirs_set = 0;
7753 sub is_make_dir
7754 {
7755 my ($dir) = @_;
7756 if (! $make_dirs_set)
7757 {
7758 foreach my $iter (@configure_input_files)
7759 {
7760 $make_dirs{dirname ($iter)} = 1;
7761 }
7762 # We also want to notice Makefile.in's.
7763 foreach my $iter (@other_input_files)
7764 {
7765 if ($iter =~ /Makefile\.in$/)
7766 {
7767 $make_dirs{dirname ($iter)} = 1;
7768 }
7769 }
7770 $make_dirs_set = 1;
7771 }
7772 return defined $make_dirs{$dir};
7773 }
7775 ################################################################
7777 # Find the aux dir. This should match the algorithm used by
7778 # ./configure. (See the Autoconf documentation for for
7779 # AC_CONFIG_AUX_DIR.)
7780 sub locate_aux_dir ()
7781 {
7782 if (! $config_aux_dir_set_in_configure_ac)
7783 {
7784 # The default auxiliary directory is the first
7785 # of ., .., or ../.. that contains install-sh.
7786 # Assume . if install-sh doesn't exist yet.
7787 for my $dir (qw (. .. ../..))
7788 {
7789 if (-f "$dir/install-sh")
7790 {
7791 $config_aux_dir = $dir;
7792 last;
7793 }
7794 }
7795 $config_aux_dir = '.' unless $config_aux_dir;
7796 }
7797 # Avoid unsightly '/.'s.
7798 $am_config_aux_dir =
7799 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7800 $am_config_aux_dir =~ s,/*$,,;
7801 }
7804 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7805 # --------------------------------------------------
7806 # See if we want to push this file onto dist_common. This function
7807 # encodes the rules for deciding when to do so.
7808 sub maybe_push_required_file
7809 {
7810 my ($dir, $file, $fullfile) = @_;
7812 if ($dir eq $relative_dir)
7813 {
7814 push_dist_common ($file);
7815 return 1;
7816 }
7817 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7818 {
7819 # If we are doing the topmost directory, and the file is in a
7820 # subdir which does not have a Makefile, then we distribute it
7821 # here.
7823 # If a required file is above the source tree, it is important
7824 # to prefix it with `$(srcdir)' so that no VPATH search is
7825 # performed. Otherwise problems occur with Make implementations
7826 # that rewrite and simplify rules whose dependencies are found in a
7827 # VPATH location. Here is an example with OSF1/Tru64 Make.
7828 #
7829 # % cat Makefile
7830 # VPATH = sub
7831 # distdir: ../a
7832 # echo ../a
7833 # % ls
7834 # Makefile a
7835 # % make
7836 # echo a
7837 # a
7838 #
7839 # Dependency `../a' was found in `sub/../a', but this make
7840 # implementation simplified it as `a'. (Note that the sub/
7841 # directory does not even exist.)
7842 #
7843 # This kind of VPATH rewriting seems hard to cancel. The
7844 # distdir.am hack against VPATH rewriting works only when no
7845 # simplification is done, i.e., for dependencies which are in
7846 # subdirectories, not in enclosing directories. Hence, in
7847 # the latter case we use a full path to make sure no VPATH
7848 # search occurs.
7849 $fullfile = '$(srcdir)/' . $fullfile
7850 if $dir =~ m,^\.\.(?:$|/),;
7852 push_dist_common ($fullfile);
7853 return 1;
7854 }
7855 return 0;
7856 }
7859 # If a file name appears as a key in this hash, then it has already
7860 # been checked for. This allows us not to report the same error more
7861 # than once.
7862 my %required_file_not_found = ();
7864 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7865 # --------------------------------------------------------------
7866 # Verify that the file must exist in $DIRECTORY, or install it.
7867 # $MYSTRICT is the strictness level at which this file becomes required.
7868 sub require_file_internal ($$$@)
7869 {
7870 my ($where, $mystrict, $dir, @files) = @_;
7872 foreach my $file (@files)
7873 {
7874 my $fullfile = "$dir/$file";
7875 my $found_it = 0;
7876 my $dangling_sym = 0;
7878 if (-l $fullfile && ! -f $fullfile)
7879 {
7880 $dangling_sym = 1;
7881 }
7882 elsif (dir_has_case_matching_file ($dir, $file))
7883 {
7884 $found_it = 1;
7885 maybe_push_required_file ($dir, $file, $fullfile);
7886 }
7888 # `--force-missing' only has an effect if `--add-missing' is
7889 # specified.
7890 if ($found_it && (! $add_missing || ! $force_missing))
7891 {
7892 next;
7893 }
7894 else
7895 {
7896 # If we've already looked for it, we're done. You might
7897 # wonder why we don't do this before searching for the
7898 # file. If we do that, then something like
7899 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7900 # DIST_COMMON.
7901 if (! $found_it)
7902 {
7903 next if defined $required_file_not_found{$fullfile};
7904 $required_file_not_found{$fullfile} = 1;
7905 }
7907 if ($strictness >= $mystrict)
7908 {
7909 if ($dangling_sym && $add_missing)
7910 {
7911 unlink ($fullfile);
7912 }
7914 my $trailer = '';
7915 my $trailer2 = '';
7916 my $suppress = 0;
7918 # Only install missing files according to our desired
7919 # strictness level.
7920 my $message = "required file `$fullfile' not found";
7921 if ($add_missing)
7922 {
7923 if (-f "$libdir/$file")
7924 {
7925 $suppress = 1;
7927 # Install the missing file. Symlink if we
7928 # can, copy if we must. Note: delete the file
7929 # first, in case it is a dangling symlink.
7930 $message = "installing `$fullfile'";
7932 # The license file should not be volatile.
7933 if ($file eq "COPYING")
7934 {
7935 $message .= " using GNU General Public License v3 file";
7936 $trailer2 = "\n Consider adding the COPYING file"
7937 . " to the version control system"
7938 . "\n for your code, to avoid questions"
7939 . " about which license your project uses.";
7940 }
7942 # Windows Perl will hang if we try to delete a
7943 # file that doesn't exist.
7944 unlink ($fullfile) if -f $fullfile;
7945 if ($symlink_exists && ! $copy_missing)
7946 {
7947 if (! symlink ("$libdir/$file", $fullfile)
7948 || ! -e $fullfile)
7949 {
7950 $suppress = 0;
7951 $trailer = "; error while making link: $!";
7952 }
7953 }
7954 elsif (system ('cp', "$libdir/$file", $fullfile))
7955 {
7956 $suppress = 0;
7957 $trailer = "\n error while copying";
7958 }
7959 set_dir_cache_file ($dir, $file);
7960 }
7962 if (! maybe_push_required_file (dirname ($fullfile),
7963 $file, $fullfile))
7964 {
7965 if (! $found_it && ! $automake_will_process_aux_dir)
7966 {
7967 # We have added the file but could not push it
7968 # into DIST_COMMON, probably because this is
7969 # an auxiliary file and we are not processing
7970 # the top level Makefile. Furthermore Automake
7971 # hasn't been asked to create the Makefile.in
7972 # that distributes the aux dir files.
7973 error ($where, 'Please make a full run of automake'
7974 . " so $fullfile gets distributed.");
7975 }
7976 }
7977 }
7978 else
7979 {
7980 $trailer = "\n `automake --add-missing' can install `$file'"
7981 if -f "$libdir/$file";
7982 }
7984 # If --force-missing was specified, and we have
7985 # actually found the file, then do nothing.
7986 next
7987 if $found_it && $force_missing;
7989 # If we couldn't install the file, but it is a target in
7990 # the Makefile, don't print anything. This allows files
7991 # like README, AUTHORS, or THANKS to be generated.
7992 next
7993 if !$suppress && rule $file;
7995 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7996 }
7997 }
7998 }
7999 }
8001 # &require_file ($WHERE, $MYSTRICT, @FILES)
8002 # -----------------------------------------
8003 sub require_file ($$@)
8004 {
8005 my ($where, $mystrict, @files) = @_;
8006 require_file_internal ($where, $mystrict, $relative_dir, @files);
8007 }
8009 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8010 # -----------------------------------------------------------
8011 sub require_file_with_macro ($$$@)
8012 {
8013 my ($cond, $macro, $mystrict, @files) = @_;
8014 $macro = rvar ($macro) unless ref $macro;
8015 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
8016 }
8018 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8019 # ----------------------------------------------------------------
8020 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
8021 # must be in that directory. Otherwise expect it in the current directory.
8022 sub require_libsource_with_macro ($$$@)
8023 {
8024 my ($cond, $macro, $mystrict, @files) = @_;
8025 $macro = rvar ($macro) unless ref $macro;
8026 if ($config_libobj_dir)
8027 {
8028 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
8029 $config_libobj_dir, @files);
8030 }
8031 else
8032 {
8033 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
8034 }
8035 }
8037 # Queue to push require_conf_file requirements to.
8038 my $required_conf_file_queue;
8040 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
8041 # -------------------------------------------------------------------------
8042 sub queue_required_conf_file ($$$$@)
8043 {
8044 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
8045 my @serial_loc;
8046 if (ref $where)
8047 {
8048 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
8049 }
8050 else
8051 {
8052 @serial_loc = (QUEUE_STRING, $where);
8053 }
8054 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
8055 }
8057 # &require_queued_conf_file ($QUEUE)
8058 # ----------------------------------
8059 sub require_queued_conf_file ($)
8060 {
8061 my ($queue) = @_;
8062 my $where;
8063 my $dir = $queue->dequeue ();
8064 my $loc_key = $queue->dequeue ();
8065 if ($loc_key eq QUEUE_LOCATION)
8066 {
8067 $where = Automake::Location::deserialize ($queue);
8068 }
8069 elsif ($loc_key eq QUEUE_STRING)
8070 {
8071 $where = $queue->dequeue ();
8072 }
8073 else
8074 {
8075 prog_error "unexpected key $loc_key";
8076 }
8077 my $mystrict = $queue->dequeue ();
8078 my $nfiles = $queue->dequeue ();
8079 my @files;
8080 push @files, $queue->dequeue ()
8081 foreach (1 .. $nfiles);
8083 # Dequeuing happens outside of per-makefile context, so we have to
8084 # set the variables used by require_file_internal and the functions
8085 # it calls. Gross!
8086 $relative_dir = $dir;
8087 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8088 }
8090 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
8091 # ----------------------------------------------
8092 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
8093 # worker threads may queue up the action to be serialized by the master.
8094 #
8095 # FIXME: this seriously relies on the semantics of require_file_internal
8096 # and maybe_push_required_file, in that we exploit the fact that only the
8097 # contents of the last handled output file may be impacted (which in turn
8098 # is dealt with by the master thread).
8099 sub require_conf_file ($$@)
8100 {
8101 my ($where, $mystrict, @files) = @_;
8102 if (defined $required_conf_file_queue)
8103 {
8104 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
8105 $relative_dir, $where, $mystrict, @files);
8106 }
8107 else
8108 {
8109 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8110 }
8111 }
8114 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8115 # ----------------------------------------------------------------
8116 sub require_conf_file_with_macro ($$$@)
8117 {
8118 my ($cond, $macro, $mystrict, @files) = @_;
8119 require_conf_file (rvar ($macro)->rdef ($cond)->location,
8120 $mystrict, @files);
8121 }
8123 ################################################################
8125 # &require_build_directory ($DIRECTORY)
8126 # -------------------------------------
8127 # Emit rules to create $DIRECTORY if needed, and return
8128 # the file that any target requiring this directory should be made
8129 # dependent upon.
8130 # We don't want to emit the rule twice, and want to reuse it
8131 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
8132 sub require_build_directory ($)
8133 {
8134 my $directory = shift;
8136 return $directory_map{$directory} if exists $directory_map{$directory};
8138 my $cdir = File::Spec->canonpath ($directory);
8140 if (exists $directory_map{$cdir})
8141 {
8142 my $stamp = $directory_map{$cdir};
8143 $directory_map{$directory} = $stamp;
8144 return $stamp;
8145 }
8147 my $dirstamp = "$cdir/\$(am__dirstamp)";
8149 $directory_map{$directory} = $dirstamp;
8150 $directory_map{$cdir} = $dirstamp;
8152 # Set a variable for the dirstamp basename.
8153 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8154 '$(am__leading_dot)dirstamp');
8156 # Directory must be removed by `make distclean'.
8157 $clean_files{$dirstamp} = DIST_CLEAN;
8159 $output_rules .= ("$dirstamp:\n"
8160 . "\t\@\$(MKDIR_P) $directory\n"
8161 . "\t\@: > $dirstamp\n");
8163 return $dirstamp;
8164 }
8166 # &require_build_directory_maybe ($FILE)
8167 # --------------------------------------
8168 # If $FILE lies in a subdirectory, emit a rule to create this
8169 # directory and return the file that $FILE should be made
8170 # dependent upon. Otherwise, just return the empty string.
8171 sub require_build_directory_maybe ($)
8172 {
8173 my $file = shift;
8174 my $directory = dirname ($file);
8176 if ($directory ne '.')
8177 {
8178 return require_build_directory ($directory);
8179 }
8180 else
8181 {
8182 return '';
8183 }
8184 }
8186 ################################################################
8188 # Push a list of files onto dist_common.
8189 sub push_dist_common
8190 {
8191 prog_error "push_dist_common run after handle_dist"
8192 if $handle_dist_run;
8193 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8194 '', INTERNAL, VAR_PRETTY);
8195 }
8198 ################################################################
8200 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8201 # ----------------------------------------------
8202 # Generate a Makefile.in given the name of the corresponding Makefile and
8203 # the name of the file output by config.status.
8204 sub generate_makefile ($$)
8205 {
8206 my ($makefile_am, $makefile_in) = @_;
8208 # Reset all the Makefile.am related variables.
8209 initialize_per_input;
8211 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8212 # warnings for this file. So hold any warning issued before
8213 # we have processed AUTOMAKE_OPTIONS.
8214 buffer_messages ('warning');
8216 # Name of input file ("Makefile.am") and output file
8217 # ("Makefile.in"). These have no directory components.
8218 $am_file_name = basename ($makefile_am);
8219 $in_file_name = basename ($makefile_in);
8221 # $OUTPUT is encoded. If it contains a ":" then the first element
8222 # is the real output file, and all remaining elements are input
8223 # files. We don't scan or otherwise deal with these input files,
8224 # other than to mark them as dependencies. See
8225 # &scan_autoconf_files for details.
8226 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8228 $relative_dir = dirname ($makefile);
8229 $am_relative_dir = dirname ($makefile_am);
8230 $topsrcdir = backname ($relative_dir);
8232 read_main_am_file ($makefile_am);
8233 if (handle_options)
8234 {
8235 # Process buffered warnings.
8236 flush_messages;
8237 # Fatal error. Just return, so we can continue with next file.
8238 return;
8239 }
8240 # Process buffered warnings.
8241 flush_messages;
8243 # There are a few install-related variables that you should not define.
8244 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8245 {
8246 my $v = var $var;
8247 if ($v)
8248 {
8249 my $def = $v->def (TRUE);
8250 prog_error "$var not defined in condition TRUE"
8251 unless $def;
8252 reject_var $var, "`$var' should not be defined"
8253 if $def->owner != VAR_AUTOMAKE;
8254 }
8255 }
8257 # Catch some obsolete variables.
8258 msg_var ('obsolete', 'INCLUDES',
8259 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8260 if var ('INCLUDES');
8262 # Must do this after reading .am file.
8263 define_variable ('subdir', $relative_dir, INTERNAL);
8265 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8266 # recursive rules are enabled.
8267 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8268 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8270 # Check first, because we might modify some state.
8271 check_cygnus;
8272 check_gnu_standards;
8273 check_gnits_standards;
8275 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8276 handle_gettext;
8277 handle_libraries;
8278 handle_ltlibraries;
8279 handle_programs;
8280 handle_scripts;
8282 # These must be run after all the sources are scanned. They
8283 # use variables defined by &handle_libraries, &handle_ltlibraries,
8284 # or &handle_programs.
8285 handle_compile;
8286 handle_languages;
8287 handle_libtool;
8289 # Variables used by distdir.am and tags.am.
8290 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8291 if (! option 'no-dist')
8292 {
8293 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8294 }
8296 handle_multilib;
8297 handle_texinfo;
8298 handle_emacs_lisp;
8299 handle_python;
8300 handle_java;
8301 handle_man_pages;
8302 handle_data;
8303 handle_headers;
8304 handle_subdirs;
8305 handle_tags;
8306 handle_minor_options;
8307 # Must come after handle_programs so that %known_programs is up-to-date.
8308 handle_tests;
8310 # This must come after most other rules.
8311 handle_dist;
8313 handle_footer;
8314 do_check_merge_target;
8315 handle_all ($makefile);
8317 # FIXME: Gross!
8318 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8319 {
8320 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8321 }
8322 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8323 {
8324 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8325 }
8327 handle_install;
8328 handle_clean ($makefile);
8329 handle_factored_dependencies;
8331 # Comes last, because all the above procedures may have
8332 # defined or overridden variables.
8333 $output_vars .= output_variables;
8335 check_typos;
8337 my ($out_file) = $output_directory . '/' . $makefile_in;
8339 if ($exit_code != 0)
8340 {
8341 verb "not writing $out_file because of earlier errors";
8342 return;
8343 }
8345 if (! -d ($output_directory . '/' . $am_relative_dir))
8346 {
8347 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8348 }
8350 # We make sure that `all:' is the first target.
8351 my $output =
8352 "$output_vars$output_all$output_header$output_rules$output_trailer";
8354 # Decide whether we must update the output file or not.
8355 # We have to update in the following situations.
8356 # * $force_generation is set.
8357 # * any of the output dependencies is younger than the output
8358 # * the contents of the output is different (this can happen
8359 # if the project has been populated with a file listed in
8360 # @common_files since the last run).
8361 # Output's dependencies are split in two sets:
8362 # * dependencies which are also configure dependencies
8363 # These do not change between each Makefile.am
8364 # * other dependencies, specific to the Makefile.am being processed
8365 # (such as the Makefile.am itself, or any Makefile fragment
8366 # it includes).
8367 my $timestamp = mtime $out_file;
8368 if (! $force_generation
8369 && $configure_deps_greatest_timestamp < $timestamp
8370 && $output_deps_greatest_timestamp < $timestamp
8371 && $output eq contents ($out_file))
8372 {
8373 verb "$out_file unchanged";
8374 # No need to update.
8375 return;
8376 }
8378 if (-e $out_file)
8379 {
8380 unlink ($out_file)
8381 or fatal "cannot remove $out_file: $!\n";
8382 }
8384 my $gm_file = new Automake::XFile "> $out_file";
8385 verb "creating $out_file";
8386 print $gm_file $output;
8387 }
8389 ################################################################
8394 ################################################################
8396 # Helper function for usage().
8397 sub print_autodist_files (@)
8398 {
8399 my @lcomm = sort (&uniq (@_));
8401 my @four;
8402 format USAGE_FORMAT =
8403 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8404 $four[0], $four[1], $four[2], $four[3]
8405 .
8406 local $~ = "USAGE_FORMAT";
8408 my $cols = 4;
8409 my $rows = int(@lcomm / $cols);
8410 my $rest = @lcomm % $cols;
8412 if ($rest)
8413 {
8414 $rows++;
8415 }
8416 else
8417 {
8418 $rest = $cols;
8419 }
8421 for (my $y = 0; $y < $rows; $y++)
8422 {
8423 @four = ("", "", "", "");
8424 for (my $x = 0; $x < $cols; $x++)
8425 {
8426 last if $y + 1 == $rows && $x == $rest;
8428 my $idx = (($x > $rest)
8429 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8430 : ($rows * $x));
8432 $idx += $y;
8433 $four[$x] = $lcomm[$idx];
8434 }
8435 write;
8436 }
8437 }
8440 # Print usage information.
8441 sub usage ()
8442 {
8443 print "Usage: $0 [OPTION] ... [Makefile]...
8445 Generate Makefile.in for configure from Makefile.am.
8447 Operation modes:
8448 --help print this help, then exit
8449 --version print version number, then exit
8450 -v, --verbose verbosely list files processed
8451 --no-force only update Makefile.in's that are out of date
8452 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8454 Dependency tracking:
8455 -i, --ignore-deps disable dependency tracking code
8456 --include-deps enable dependency tracking code
8458 Flavors:
8459 --cygnus assume program is part of Cygnus-style tree
8460 --foreign set strictness to foreign
8461 --gnits set strictness to gnits
8462 --gnu set strictness to gnu
8464 Library files:
8465 -a, --add-missing add missing standard files to package
8466 --libdir=DIR directory storing library files
8467 -c, --copy with -a, copy missing files (default is symlink)
8468 -f, --force-missing force update of standard files
8470 ";
8471 Automake::ChannelDefs::usage;
8473 print "\nFiles automatically distributed if found " .
8474 "(always):\n";
8475 print_autodist_files @common_files;
8476 print "\nFiles automatically distributed if found " .
8477 "(under certain conditions):\n";
8478 print_autodist_files @common_sometimes;
8480 print '
8481 Report bugs to <@PACKAGE_BUGREPORT@>.
8482 GNU Automake home page: <@PACKAGE_URL@>.
8483 General help using GNU software: <http://www.gnu.org/gethelp/>.
8484 ';
8486 # --help always returns 0 per GNU standards.
8487 exit 0;
8488 }
8491 # &version ()
8492 # -----------
8493 # Print version information
8494 sub version ()
8495 {
8496 print <<EOF;
8497 automake (GNU $PACKAGE) $VERSION
8498 Copyright (C) 2011 Free Software Foundation, Inc.
8499 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8500 This is free software: you are free to change and redistribute it.
8501 There is NO WARRANTY, to the extent permitted by law.
8503 Written by Tom Tromey <tromey\@redhat.com>
8504 and Alexandre Duret-Lutz <adl\@gnu.org>.
8505 EOF
8506 # --version always returns 0 per GNU standards.
8507 exit 0;
8508 }
8510 ################################################################
8512 # Parse command line.
8513 sub parse_arguments ()
8514 {
8515 # Start off as gnu.
8516 set_strictness ('gnu');
8518 my $cli_where = new Automake::Location;
8519 my %cli_options =
8520 (
8521 'version' => \&version,
8522 'help' => \&usage,
8523 'libdir=s' => \$libdir,
8524 'gnu' => sub { set_strictness ('gnu'); },
8525 'gnits' => sub { set_strictness ('gnits'); },
8526 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8527 'foreign' => sub { set_strictness ('foreign'); },
8528 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8529 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8530 $cli_where); },
8531 'no-force' => sub { $force_generation = 0; },
8532 'f|force-missing' => \$force_missing,
8533 'o|output-dir=s' => \$output_directory,
8534 'a|add-missing' => \$add_missing,
8535 'c|copy' => \$copy_missing,
8536 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8537 'W|warnings=s' => \&parse_warnings,
8538 # These long options (--Werror and --Wno-error) for backward
8539 # compatibility. Use -Werror and -Wno-error today.
8540 'Werror' => sub { parse_warnings 'W', 'error'; },
8541 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8542 );
8544 use Automake::Getopt ();
8545 Automake::Getopt::parse_options %cli_options;
8547 if (defined $output_directory)
8548 {
8549 msg 'obsolete', "`--output-dir' is deprecated\n";
8550 }
8551 else
8552 {
8553 # In the next release we'll remove this entirely.
8554 $output_directory = '.';
8555 }
8557 return unless @ARGV;
8559 my $errspec = 0;
8560 foreach my $arg (@ARGV)
8561 {
8562 fatal ("empty argument\nTry `$0 --help' for more information.")
8563 if ($arg eq '');
8565 # Handle $local:$input syntax.
8566 my ($local, @rest) = split (/:/, $arg);
8567 @rest = ("$local.in",) unless @rest;
8568 my $input = locate_am @rest;
8569 if ($input)
8570 {
8571 push @input_files, $input;
8572 $output_files{$input} = join (':', ($local, @rest));
8573 }
8574 else
8575 {
8576 error "no Automake input file found for `$arg'";
8577 $errspec = 1;
8578 }
8579 }
8580 fatal "no input file found among supplied arguments"
8581 if $errspec && ! @input_files;
8582 }
8585 # handle_makefile ($MAKEFILE_IN)
8586 # ------------------------------
8587 # Deal with $MAKEFILE_IN.
8588 sub handle_makefile ($)
8589 {
8590 my ($file) = @_;
8591 ($am_file = $file) =~ s/\.in$//;
8592 if (! -f ($am_file . '.am'))
8593 {
8594 error "`$am_file.am' does not exist";
8595 }
8596 else
8597 {
8598 # Any warning setting now local to this Makefile.am.
8599 dup_channel_setup;
8601 generate_makefile ($am_file . '.am', $file);
8603 # Back out any warning setting.
8604 drop_channel_setup;
8605 }
8606 }
8608 # handle_makefiles_serial ()
8609 # --------------------------
8610 # Deal with all makefiles, without threads.
8611 sub handle_makefiles_serial ()
8612 {
8613 foreach my $file (@input_files)
8614 {
8615 handle_makefile ($file);
8616 }
8617 }
8619 # get_number_of_threads ()
8620 # ------------------------
8621 # Logic for deciding how many worker threads to use.
8622 sub get_number_of_threads
8623 {
8624 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8626 $nthreads = 0
8627 unless $nthreads =~ /^[0-9]+$/;
8629 # It doesn't make sense to use more threads than makefiles,
8630 my $max_threads = @input_files;
8632 # but a single worker thread is helpful for exposing bugs.
8633 if ($automake_will_process_aux_dir && $max_threads > 1)
8634 {
8635 $max_threads--;
8636 }
8637 if ($nthreads > $max_threads)
8638 {
8639 $nthreads = $max_threads;
8640 }
8641 return $nthreads;
8642 }
8644 # handle_makefiles_threaded ($NTHREADS)
8645 # -------------------------------------
8646 # Deal with all makefiles, using threads. The general strategy is to
8647 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8648 # worker threads push back everything that needs serialization:
8649 # * warning and (normal) error messages, for stable stderr output
8650 # order and content (avoiding duplicates, for example),
8651 # * races when installing aux files (and respective messages),
8652 # * races when collecting aux files for distribution.
8653 #
8654 # The latter requires that the makefile that deals with the aux dir
8655 # files be handled last, done by the master thread.
8656 sub handle_makefiles_threaded ($)
8657 {
8658 my ($nthreads) = @_;
8660 my @queued_input_files = @input_files;
8661 my $last_input_file = undef;
8662 if ($automake_will_process_aux_dir)
8663 {
8664 $last_input_file = pop @queued_input_files;
8665 }
8667 # The file queue distributes all makefiles, the message queues
8668 # collect all serializations needed for respective files.
8669 my $file_queue = Thread::Queue->new;
8670 my %msg_queues;
8671 foreach my $file (@queued_input_files)
8672 {
8673 $msg_queues{$file} = Thread::Queue->new;
8674 }
8676 verb "spawning $nthreads worker threads";
8677 my @threads = (1 .. $nthreads);
8678 foreach my $t (@threads)
8679 {
8680 $t = threads->new (sub
8681 {
8682 while (my $file = $file_queue->dequeue)
8683 {
8684 verb "handling $file";
8685 my $queue = $msg_queues{$file};
8686 setup_channel_queue ($queue, QUEUE_MESSAGE);
8687 $required_conf_file_queue = $queue;
8688 handle_makefile ($file);
8689 $queue->enqueue (undef);
8690 setup_channel_queue (undef, undef);
8691 $required_conf_file_queue = undef;
8692 }
8693 return $exit_code;
8694 });
8695 }
8697 # Queue all normal makefiles.
8698 verb "queuing " . @queued_input_files . " input files";
8699 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8701 # Collect and process serializations.
8702 foreach my $file (@queued_input_files)
8703 {
8704 verb "dequeuing messages for " . $file;
8705 reset_local_duplicates ();
8706 my $queue = $msg_queues{$file};
8707 while (my $key = $queue->dequeue)
8708 {
8709 if ($key eq QUEUE_MESSAGE)
8710 {
8711 pop_channel_queue ($queue);
8712 }
8713 elsif ($key eq QUEUE_CONF_FILE)
8714 {
8715 require_queued_conf_file ($queue);
8716 }
8717 else
8718 {
8719 prog_error "unexpected key $key";
8720 }
8721 }
8722 }
8724 foreach my $t (@threads)
8725 {
8726 my @exit_thread = $t->join;
8727 $exit_code = $exit_thread[0]
8728 if ($exit_thread[0] > $exit_code);
8729 }
8731 # The master processes the last file.
8732 if ($automake_will_process_aux_dir)
8733 {
8734 verb "processing last input file";
8735 handle_makefile ($last_input_file);
8736 }
8737 }
8739 ################################################################
8741 # Parse the WARNINGS environment variable.
8742 parse_WARNINGS;
8744 # Parse command line.
8745 parse_arguments;
8747 $configure_ac = require_configure_ac;
8749 # Do configure.ac scan only once.
8750 scan_autoconf_files;
8752 if (! @input_files)
8753 {
8754 my $msg = '';
8755 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8756 if -f 'Makefile.am';
8757 fatal ("no `Makefile.am' found for any configure output$msg");
8758 }
8760 my $nthreads = get_number_of_threads ();
8762 if ($perl_threads && $nthreads >= 1)
8763 {
8764 handle_makefiles_threaded ($nthreads);
8765 }
8766 else
8767 {
8768 handle_makefiles_serial ();
8769 }
8771 exit $exit_code;
8774 ### Setup "GNU" style for perl-mode and cperl-mode.
8775 ## Local Variables:
8776 ## perl-indent-level: 2
8777 ## perl-continued-statement-offset: 2
8778 ## perl-continued-brace-offset: 0
8779 ## perl-brace-offset: 0
8780 ## perl-brace-imaginary-offset: 0
8781 ## perl-label-offset: -2
8782 ## cperl-indent-level: 2
8783 ## cperl-brace-offset: 0
8784 ## cperl-continued-brace-offset: 0
8785 ## cperl-label-offset: -2
8786 ## cperl-extra-newline-before-brace: t
8787 ## cperl-merge-trailing-else: nil
8788 ## cperl-continued-statement-offset: 2
8789 ## End: