| blob | bab8c4222a3f2781e79ab02c7f2fd87bbf4dfb3c |
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 Free Software Foundation,
11 # 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 $ENV{'DJGPP'};
45 }
47 use Automake::Struct;
48 struct (# Short name of the language (c, f77...).
49 'name' => "\$",
50 # Nice name of the language (C, Fortran 77...).
51 'Name' => "\$",
53 # List of configure variables which must be defined.
54 'config_vars' => '@',
56 'ansi' => "\$",
57 # `pure' is `1' or `'. A `pure' language is one where, if
58 # all the files in a directory are of that language, then we
59 # do not require the C compiler or any code to call it.
60 'pure' => "\$",
62 'autodep' => "\$",
64 # Name of the compiling variable (COMPILE).
65 'compiler' => "\$",
66 # Content of the compiling variable.
67 'compile' => "\$",
68 # Flag to require compilation without linking (-c).
69 'compile_flag' => "\$",
70 'extensions' => '@',
71 # A subroutine to compute a list of possible extensions of
72 # the product given the input extensions.
73 # (defaults to a subroutine which returns ('.$(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 compile config.guess config.rpath config.sub
239 depcomp elisp-comp install-sh libversion.in mdate-sh missing
240 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 dvi exec html include info
253 lib libexec lisp localstate man man1 man2 man3
254 man4 man5 man6 man7 man8 man9 oldinclude pdf
255 pkgdatadir pkgincludedir pkglibdir pkglibexecdir
256 ps sbin 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 Free Software Foundation,
262 # 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_CC_C_O
400 my $seen_cc_c_o = 0;
402 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
403 my %required_aux_file = ();
405 # Where AM_INIT_AUTOMAKE is called;
406 my $seen_init_automake = 0;
408 # TRUE if we've seen AM_AUTOMAKE_VERSION.
409 my $seen_automake_version = 0;
411 # Hash table of discovered configure substitutions. Keys are names,
412 # values are `FILE:LINE' strings which are used by error message
413 # generation.
414 my %configure_vars = ();
416 # Ignored configure substitutions (i.e., variables not to be output in
417 # Makefile.in)
418 my %ignored_configure_vars = ();
420 # Files included by $configure_ac.
421 my @configure_deps = ();
423 # Greatest timestamp of configure's dependencies.
424 my $configure_deps_greatest_timestamp = 0;
426 # Hash table of AM_CONDITIONAL variables seen in configure.
427 my %configure_cond = ();
429 # This maps extensions onto language names.
430 my %extension_map = ();
432 # List of the DIST_COMMON files we discovered while reading
433 # configure.in
434 my $configure_dist_common = '';
436 # This maps languages names onto objects.
437 my %languages = ();
438 # Maps each linker variable onto a language object.
439 my %link_languages = ();
441 # maps extensions to needed source flags.
442 my %sourceflags = ();
444 # List of targets we must always output.
445 # FIXME: Complete, and remove falsely required targets.
446 my %required_targets =
447 (
448 'all' => 1,
449 'dvi' => 1,
450 'pdf' => 1,
451 'ps' => 1,
452 'info' => 1,
453 'install-info' => 1,
454 'install' => 1,
455 'install-data' => 1,
456 'install-exec' => 1,
457 'uninstall' => 1,
459 # FIXME: Not required, temporary hacks.
460 # Well, actually they are sort of required: the -recursive
461 # targets will run them anyway...
462 'html-am' => 1,
463 'dvi-am' => 1,
464 'pdf-am' => 1,
465 'ps-am' => 1,
466 'info-am' => 1,
467 'install-data-am' => 1,
468 'install-exec-am' => 1,
469 'install-html-am' => 1,
470 'install-dvi-am' => 1,
471 'install-pdf-am' => 1,
472 'install-ps-am' => 1,
473 'install-info-am' => 1,
474 'installcheck-am' => 1,
475 'uninstall-am' => 1,
477 'install-man' => 1,
478 );
480 # Set to 1 if this run will create the Makefile.in that distributes
481 # the files in config_aux_dir.
482 my $automake_will_process_aux_dir = 0;
484 # The name of the Makefile currently being processed.
485 my $am_file = 'BUG';
486 \f
488 ################################################################
490 ## ------------------------------------------ ##
491 ## Variables reset by &initialize_per_input. ##
492 ## ------------------------------------------ ##
494 # Basename and relative dir of the input file.
495 my $am_file_name;
496 my $am_relative_dir;
498 # Same but wrt Makefile.in.
499 my $in_file_name;
500 my $relative_dir;
502 # Relative path to the top directory.
503 my $topsrcdir;
505 # Greatest timestamp of the output's dependencies (excluding
506 # configure's dependencies).
507 my $output_deps_greatest_timestamp;
509 # These variables are used when generating each Makefile.in.
510 # They hold the Makefile.in until it is ready to be printed.
511 my $output_vars;
512 my $output_all;
513 my $output_header;
514 my $output_rules;
515 my $output_trailer;
517 # This is the conditional stack, updated on if/else/endif, and
518 # used to build Condition objects.
519 my @cond_stack;
521 # This holds the set of included files.
522 my @include_stack;
524 # List of dependencies for the obvious targets.
525 my @all;
526 my @check;
527 my @check_tests;
529 # Keys in this hash table are files to delete. The associated
530 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
531 my %clean_files;
533 # Keys in this hash table are object files or other files in
534 # subdirectories which need to be removed. This only holds files
535 # which are created by compilations. The value in the hash indicates
536 # when the file should be removed.
537 my %compile_clean_files;
539 # Keys in this hash table are directories where we expect to build a
540 # libtool object. We use this information to decide what directories
541 # to delete.
542 my %libtool_clean_directories;
544 # Value of `$(SOURCES)', used by tags.am.
545 my @sources;
546 # Sources which go in the distribution.
547 my @dist_sources;
549 # This hash maps object file names onto their corresponding source
550 # file names. This is used to ensure that each object is created
551 # by a single source file.
552 my %object_map;
554 # This hash maps object file names onto an integer value representing
555 # whether this object has been built via ordinary compilation or
556 # libtool compilation (the COMPILE_* constants).
557 my %object_compilation_map;
560 # This keeps track of the directories for which we've already
561 # created dirstamp code. Keys are directories, values are stamp files.
562 # Several keys can share the same stamp files if they are equivalent
563 # (as are `.//foo' and `foo').
564 my %directory_map;
566 # All .P files.
567 my %dep_files;
569 # This is a list of all targets to run during "make dist".
570 my @dist_targets;
572 # Keep track of all programs declared in this Makefile, without
573 # $(EXEEXT). @substitutions@ are not listed.
574 my %known_programs;
575 my %known_libraries;
577 # Keys in this hash are the basenames of files which must depend on
578 # ansi2knr. Values are either the empty string, or the directory in
579 # which the ANSI source file appears; the directory must have a
580 # trailing `/'.
581 my %de_ansi_files;
583 # This keeps track of which extensions we've seen (that we care
584 # about).
585 my %extension_seen;
587 # This is random scratch space for the language finish functions.
588 # Don't randomly overwrite it; examine other uses of keys first.
589 my %language_scratch;
591 # We keep track of which objects need special (per-executable)
592 # handling on a per-language basis.
593 my %lang_specific_files;
595 # This is set when `handle_dist' has finished. Once this happens,
596 # we should no longer push on dist_common.
597 my $handle_dist_run;
599 # Used to store a set of linkers needed to generate the sources currently
600 # under consideration.
601 my %linkers_used;
603 # True if we need `LINK' defined. This is a hack.
604 my $need_link;
606 # Was get_object_extension run?
607 # FIXME: This is a hack. a better switch should be found.
608 my $get_object_extension_was_run;
610 # Record each file processed by make_paragraphs.
611 my %transformed_files;
612 \f
614 ################################################################
616 ## ---------------------------------------------- ##
617 ## Variables not reset by &initialize_per_input. ##
618 ## ---------------------------------------------- ##
620 # Cache each file processed by make_paragraphs.
621 # (This is different from %transformed_files because
622 # %transformed_files is reset for each file while %am_file_cache
623 # it global to the run.)
624 my %am_file_cache;
626 ################################################################
628 # var_SUFFIXES_trigger ($TYPE, $VALUE)
629 # ------------------------------------
630 # This is called by Automake::Variable::define() when SUFFIXES
631 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
632 # The work here needs to be performed as a side-effect of the
633 # macro_define() call because SUFFIXES definitions impact
634 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
635 # the input am file.
636 sub var_SUFFIXES_trigger ($$)
637 {
638 my ($type, $value) = @_;
639 accept_extensions (split (' ', $value));
640 }
641 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
643 ################################################################
645 ## --------------------------------- ##
646 ## Forward subroutine declarations. ##
647 ## --------------------------------- ##
648 sub register_language (%);
649 sub file_contents_internal ($$$%);
650 sub define_files_variable ($\@$$);
653 # &initialize_per_input ()
654 # ------------------------
655 # (Re)-Initialize per-Makefile.am variables.
656 sub initialize_per_input ()
657 {
658 reset_local_duplicates ();
660 $am_file_name = undef;
661 $am_relative_dir = undef;
663 $in_file_name = undef;
664 $relative_dir = undef;
665 $topsrcdir = undef;
667 $output_deps_greatest_timestamp = 0;
669 $output_vars = '';
670 $output_all = '';
671 $output_header = '';
672 $output_rules = '';
673 $output_trailer = '';
675 Automake::Options::reset;
676 Automake::Variable::reset;
677 Automake::Rule::reset;
679 @cond_stack = ();
681 @include_stack = ();
683 @all = ();
684 @check = ();
685 @check_tests = ();
687 %clean_files = ();
688 %compile_clean_files = ();
690 # We always include `.'. This isn't strictly correct.
691 %libtool_clean_directories = ('.' => 1);
693 @sources = ();
694 @dist_sources = ();
696 %object_map = ();
697 %object_compilation_map = ();
699 %directory_map = ();
701 %dep_files = ();
703 @dist_targets = ();
705 %known_programs = ();
706 %known_libraries= ();
708 %de_ansi_files = ();
710 %extension_seen = ();
712 %language_scratch = ();
714 %lang_specific_files = ();
716 $handle_dist_run = 0;
718 $need_link = 0;
720 $get_object_extension_was_run = 0;
722 %transformed_files = ();
723 }
726 ################################################################
728 # Initialize our list of languages that are internally supported.
730 # C.
731 register_language ('name' => 'c',
732 'Name' => 'C',
733 'config_vars' => ['CC'],
734 'ansi' => 1,
735 'autodep' => '',
736 'flags' => ['CFLAGS', 'CPPFLAGS'],
737 'ccer' => 'CC',
738 'compiler' => 'COMPILE',
739 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
740 'lder' => 'CCLD',
741 'ld' => '$(CC)',
742 'linker' => 'LINK',
743 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
744 'compile_flag' => '-c',
745 'libtool_tag' => 'CC',
746 'extensions' => ['.c'],
747 '_finish' => \&lang_c_finish);
749 # C++.
750 register_language ('name' => 'cxx',
751 'Name' => 'C++',
752 'config_vars' => ['CXX'],
753 'linker' => 'CXXLINK',
754 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
755 'autodep' => 'CXX',
756 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
757 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
758 'ccer' => 'CXX',
759 'compiler' => 'CXXCOMPILE',
760 'compile_flag' => '-c',
761 'output_flag' => '-o',
762 'libtool_tag' => 'CXX',
763 'lder' => 'CXXLD',
764 'ld' => '$(CXX)',
765 'pure' => 1,
766 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
768 # Objective C.
769 register_language ('name' => 'objc',
770 'Name' => 'Objective C',
771 'config_vars' => ['OBJC'],
772 'linker' => 'OBJCLINK',
773 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
774 'autodep' => 'OBJC',
775 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
776 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
777 'ccer' => 'OBJC',
778 'compiler' => 'OBJCCOMPILE',
779 'compile_flag' => '-c',
780 'output_flag' => '-o',
781 'lder' => 'OBJCLD',
782 'ld' => '$(OBJC)',
783 'pure' => 1,
784 'extensions' => ['.m']);
786 # Unified Parallel C.
787 register_language ('name' => 'upc',
788 'Name' => 'Unified Parallel C',
789 'config_vars' => ['UPC'],
790 'linker' => 'UPCLINK',
791 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
792 'autodep' => 'UPC',
793 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
794 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
795 'ccer' => 'UPC',
796 'compiler' => 'UPCCOMPILE',
797 'compile_flag' => '-c',
798 'output_flag' => '-o',
799 'lder' => 'UPCLD',
800 'ld' => '$(UPC)',
801 'pure' => 1,
802 'extensions' => ['.upc']);
804 # Headers.
805 register_language ('name' => 'header',
806 'Name' => 'Header',
807 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
808 '.hpp', '.inc'],
809 # No output.
810 'output_extensions' => sub { return () },
811 # Nothing to do.
812 '_finish' => sub { });
814 # Vala
815 register_language ('name' => 'vala',
816 'Name' => 'Vala',
817 'config_vars' => ['VALAC'],
818 'flags' => [],
819 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
820 'ccer' => 'VALAC',
821 'compiler' => 'VALACOMPILE',
822 'extensions' => ['.vala'],
823 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
824 return ($ext,) },
825 'rule_file' => 'vala',
826 '_finish' => \&lang_vala_finish,
827 '_target_hook' => \&lang_vala_target_hook,
828 'nodist_specific' => 1);
830 # Yacc (C & C++).
831 register_language ('name' => 'yacc',
832 'Name' => 'Yacc',
833 'config_vars' => ['YACC'],
834 'flags' => ['YFLAGS'],
835 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
836 'ccer' => 'YACC',
837 'compiler' => 'YACCCOMPILE',
838 'extensions' => ['.y'],
839 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
840 return ($ext,) },
841 'rule_file' => 'yacc',
842 '_finish' => \&lang_yacc_finish,
843 '_target_hook' => \&lang_yacc_target_hook,
844 'nodist_specific' => 1);
845 register_language ('name' => 'yaccxx',
846 'Name' => 'Yacc (C++)',
847 'config_vars' => ['YACC'],
848 'rule_file' => 'yacc',
849 'flags' => ['YFLAGS'],
850 'ccer' => 'YACC',
851 'compiler' => 'YACCCOMPILE',
852 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
853 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
854 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
855 return ($ext,) },
856 '_finish' => \&lang_yacc_finish,
857 '_target_hook' => \&lang_yacc_target_hook,
858 'nodist_specific' => 1);
860 # Lex (C & C++).
861 register_language ('name' => 'lex',
862 'Name' => 'Lex',
863 'config_vars' => ['LEX'],
864 'rule_file' => 'lex',
865 'flags' => ['LFLAGS'],
866 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
867 'ccer' => 'LEX',
868 'compiler' => 'LEXCOMPILE',
869 'extensions' => ['.l'],
870 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
871 return ($ext,) },
872 '_finish' => \&lang_lex_finish,
873 '_target_hook' => \&lang_lex_target_hook,
874 'nodist_specific' => 1);
875 register_language ('name' => 'lexxx',
876 'Name' => 'Lex (C++)',
877 'config_vars' => ['LEX'],
878 'rule_file' => 'lex',
879 'flags' => ['LFLAGS'],
880 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
881 'ccer' => 'LEX',
882 'compiler' => 'LEXCOMPILE',
883 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
884 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
885 return ($ext,) },
886 '_finish' => \&lang_lex_finish,
887 '_target_hook' => \&lang_lex_target_hook,
888 'nodist_specific' => 1);
890 # Assembler.
891 register_language ('name' => 'asm',
892 'Name' => 'Assembler',
893 'config_vars' => ['CCAS', 'CCASFLAGS'],
895 'flags' => ['CCASFLAGS'],
896 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
897 # or anything else required. They can also set CCAS.
898 # Or simply use Preprocessed Assembler.
899 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
900 'ccer' => 'CCAS',
901 'compiler' => 'CCASCOMPILE',
902 'compile_flag' => '-c',
903 'output_flag' => '-o',
904 'extensions' => ['.s'],
906 # With assembly we still use the C linker.
907 '_finish' => \&lang_c_finish);
909 # Preprocessed Assembler.
910 register_language ('name' => 'cppasm',
911 'Name' => 'Preprocessed Assembler',
912 'config_vars' => ['CCAS', 'CCASFLAGS'],
914 'autodep' => 'CCAS',
915 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
916 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
917 'ccer' => 'CPPAS',
918 'compiler' => 'CPPASCOMPILE',
919 'compile_flag' => '-c',
920 'output_flag' => '-o',
921 'extensions' => ['.S', '.sx'],
923 # With assembly we still use the C linker.
924 '_finish' => \&lang_c_finish);
926 # Fortran 77
927 register_language ('name' => 'f77',
928 'Name' => 'Fortran 77',
929 'config_vars' => ['F77'],
930 'linker' => 'F77LINK',
931 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
932 'flags' => ['FFLAGS'],
933 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
934 'ccer' => 'F77',
935 'compiler' => 'F77COMPILE',
936 'compile_flag' => '-c',
937 'output_flag' => '-o',
938 'libtool_tag' => 'F77',
939 'lder' => 'F77LD',
940 'ld' => '$(F77)',
941 'pure' => 1,
942 'extensions' => ['.f', '.for']);
944 # Fortran
945 register_language ('name' => 'fc',
946 'Name' => 'Fortran',
947 'config_vars' => ['FC'],
948 'linker' => 'FCLINK',
949 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
950 'flags' => ['FCFLAGS'],
951 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
952 'ccer' => 'FC',
953 'compiler' => 'FCCOMPILE',
954 'compile_flag' => '-c',
955 'output_flag' => '-o',
956 'libtool_tag' => 'FC',
957 'lder' => 'FCLD',
958 'ld' => '$(FC)',
959 'pure' => 1,
960 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
962 # Preprocessed Fortran
963 register_language ('name' => 'ppfc',
964 'Name' => 'Preprocessed Fortran',
965 'config_vars' => ['FC'],
966 'linker' => 'FCLINK',
967 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
968 'lder' => 'FCLD',
969 'ld' => '$(FC)',
970 'flags' => ['FCFLAGS', 'CPPFLAGS'],
971 'ccer' => 'PPFC',
972 'compiler' => 'PPFCCOMPILE',
973 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
974 'compile_flag' => '-c',
975 'output_flag' => '-o',
976 'libtool_tag' => 'FC',
977 'pure' => 1,
978 'extensions' => ['.F90','.F95', '.F03', '.F08']);
980 # Preprocessed Fortran 77
981 #
982 # The current support for preprocessing Fortran 77 just involves
983 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
984 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
985 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
986 # for `make' Version 3.76 Beta' (specifically, from info file
987 # `(make)Catalogue of Rules').
988 #
989 # A better approach would be to write an Autoconf test
990 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
991 # Fortran 77 compilers know how to do preprocessing. The Autoconf
992 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
993 # preprocessing capabilities, and then fall back on cpp (if cpp were
994 # available).
995 register_language ('name' => 'ppf77',
996 'Name' => 'Preprocessed Fortran 77',
997 'config_vars' => ['F77'],
998 'linker' => 'F77LINK',
999 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1000 'lder' => 'F77LD',
1001 'ld' => '$(F77)',
1002 'flags' => ['FFLAGS', 'CPPFLAGS'],
1003 'ccer' => 'PPF77',
1004 'compiler' => 'PPF77COMPILE',
1005 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
1006 'compile_flag' => '-c',
1007 'output_flag' => '-o',
1008 'libtool_tag' => 'F77',
1009 'pure' => 1,
1010 'extensions' => ['.F']);
1012 # Ratfor.
1013 register_language ('name' => 'ratfor',
1014 'Name' => 'Ratfor',
1015 'config_vars' => ['F77'],
1016 'linker' => 'F77LINK',
1017 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1018 'lder' => 'F77LD',
1019 'ld' => '$(F77)',
1020 'flags' => ['RFLAGS', 'FFLAGS'],
1021 # FIXME also FFLAGS.
1022 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1023 'ccer' => 'F77',
1024 'compiler' => 'RCOMPILE',
1025 'compile_flag' => '-c',
1026 'output_flag' => '-o',
1027 'libtool_tag' => 'F77',
1028 'pure' => 1,
1029 'extensions' => ['.r']);
1031 # Java via gcj.
1032 register_language ('name' => 'java',
1033 'Name' => 'Java',
1034 'config_vars' => ['GCJ'],
1035 'linker' => 'GCJLINK',
1036 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1037 'autodep' => 'GCJ',
1038 'flags' => ['GCJFLAGS'],
1039 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1040 'ccer' => 'GCJ',
1041 'compiler' => 'GCJCOMPILE',
1042 'compile_flag' => '-c',
1043 'output_flag' => '-o',
1044 'libtool_tag' => 'GCJ',
1045 'lder' => 'GCJLD',
1046 'ld' => '$(GCJ)',
1047 'pure' => 1,
1048 'extensions' => ['.java', '.class', '.zip', '.jar']);
1050 ################################################################
1052 # Error reporting functions.
1054 # err_am ($MESSAGE, [%OPTIONS])
1055 # -----------------------------
1056 # Uncategorized errors about the current Makefile.am.
1057 sub err_am ($;%)
1058 {
1059 msg_am ('error', @_);
1060 }
1062 # err_ac ($MESSAGE, [%OPTIONS])
1063 # -----------------------------
1064 # Uncategorized errors about configure.ac.
1065 sub err_ac ($;%)
1066 {
1067 msg_ac ('error', @_);
1068 }
1070 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1071 # ---------------------------------------
1072 # Messages about about the current Makefile.am.
1073 sub msg_am ($$;%)
1074 {
1075 my ($channel, $msg, %opts) = @_;
1076 msg $channel, "${am_file}.am", $msg, %opts;
1077 }
1079 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1080 # ---------------------------------------
1081 # Messages about about configure.ac.
1082 sub msg_ac ($$;%)
1083 {
1084 my ($channel, $msg, %opts) = @_;
1085 msg $channel, $configure_ac, $msg, %opts;
1086 }
1088 ################################################################
1090 # subst ($TEXT)
1091 # -------------
1092 # Return a configure-style substitution using the indicated text.
1093 # We do this to avoid having the substitutions directly in automake.in;
1094 # when we do that they are sometimes removed and this causes confusion
1095 # and bugs.
1096 sub subst ($)
1097 {
1098 my ($text) = @_;
1099 return '@' . $text . '@';
1100 }
1102 ################################################################
1105 # $BACKPATH
1106 # &backname ($REL-DIR)
1107 # --------------------
1108 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1109 # For instance `src/foo' => `../..'.
1110 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1111 sub backname ($)
1112 {
1113 my ($file) = @_;
1114 my @res;
1115 foreach (split (/\//, $file))
1116 {
1117 next if $_ eq '.' || $_ eq '';
1118 if ($_ eq '..')
1119 {
1120 pop @res
1121 or prog_error ("trying to reverse path `$file' pointing outside tree");
1122 }
1123 else
1124 {
1125 push (@res, '..');
1126 }
1127 }
1128 return join ('/', @res) || '.';
1129 }
1131 ################################################################
1133 # `silent-rules' mode handling functions.
1135 # verbose_var (NAME)
1136 # ------------------
1137 # The public variable stem used to implement `silent-rules'.
1138 sub verbose_var ($)
1139 {
1140 my ($name) = @_;
1141 return 'AM_V_' . $name;
1142 }
1144 # verbose_private_var (NAME)
1145 # --------------------------
1146 # The naming policy for the private variables for `silent-rules'.
1147 sub verbose_private_var ($)
1148 {
1149 my ($name) = @_;
1150 return 'am__v_' . $name;
1151 }
1153 # define_verbose_var (NAME, VAL)
1154 # ------------------------------
1155 # For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1156 sub define_verbose_var ($$)
1157 {
1158 my ($name, $val) = @_;
1159 my $var = verbose_var ($name);
1160 my $pvar = verbose_private_var ($name);
1161 my $silent_var = $pvar . '_0';
1162 if (option 'silent-rules')
1163 {
1164 # Using `$V' instead of `$(V)' breaks IRIX make.
1165 define_variable ($var, '$(' . $pvar . '_$(V))', INTERNAL);
1166 define_variable ($pvar . '_', '$(' . $pvar . '_$(AM_DEFAULT_VERBOSITY))', INTERNAL);
1167 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1168 '', INTERNAL, VAR_ASIS)
1169 if (! vardef ($silent_var, TRUE));
1170 }
1171 }
1173 # Above should not be needed in the general automake code.
1175 # verbose_flag (NAME)
1176 # -------------------
1177 # Contents of %VERBOSE%: variable to expand before rule command.
1178 sub verbose_flag ($)
1179 {
1180 my ($name) = @_;
1181 return '$(' . verbose_var ($name) . ')'
1182 if (option 'silent-rules');
1183 return '';
1184 }
1186 # silent_flag
1187 # -----------
1188 # Contents of %SILENT%: variable to expand to `@' when silent.
1189 sub silent_flag ()
1190 {
1191 return verbose_flag ('at');
1192 }
1194 # define_verbose_tagvar (NAME)
1195 # ----------------------------
1196 # Engage the needed `silent-rules' machinery for tag NAME.
1197 sub define_verbose_tagvar ($)
1198 {
1199 my ($name) = @_;
1200 if (option 'silent-rules')
1201 {
1202 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1203 define_verbose_var ('at', '@');
1204 }
1205 }
1207 # define_verbose_libtool
1208 # ----------------------
1209 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1210 sub define_verbose_libtool ()
1211 {
1212 define_verbose_var ('lt', '--silent');
1213 return verbose_flag ('lt');
1214 }
1217 ################################################################
1220 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1221 sub handle_options
1222 {
1223 my $var = var ('AUTOMAKE_OPTIONS');
1224 if ($var)
1225 {
1226 if ($var->has_conditional_contents)
1227 {
1228 msg_var ('unsupported', $var,
1229 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1230 }
1231 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1232 location => 1))
1233 {
1234 my ($loc, $value) = @$locvals;
1235 return 1 if (process_option_list ($loc, $value))
1236 }
1237 }
1239 # Override portability-recursive warning.
1240 switch_warning ('no-portability-recursive')
1241 if option 'silent-rules';
1243 if ($strictness == GNITS)
1244 {
1245 set_option ('readme-alpha', INTERNAL);
1246 set_option ('std-options', INTERNAL);
1247 set_option ('check-news', INTERNAL);
1248 }
1250 return 0;
1251 }
1253 # shadow_unconditionally ($varname, $where)
1254 # -----------------------------------------
1255 # Return a $(variable) that contains all possible values
1256 # $varname can take.
1257 # If the VAR wasn't defined conditionally, return $(VAR).
1258 # Otherwise we create an am__VAR_DIST variable which contains
1259 # all possible values, and return $(am__VAR_DIST).
1260 sub shadow_unconditionally ($$)
1261 {
1262 my ($varname, $where) = @_;
1263 my $var = var $varname;
1264 if ($var->has_conditional_contents)
1265 {
1266 $varname = "am__${varname}_DIST";
1267 my @files = uniq ($var->value_as_list_recursive);
1268 define_pretty_variable ($varname, TRUE, $where, @files);
1269 }
1270 return "\$($varname)"
1271 }
1273 # get_object_extension ($EXTENSION)
1274 # ---------------------------------
1275 # Prefix $EXTENSION with $U if ansi2knr is in use.
1276 sub get_object_extension ($)
1277 {
1278 my ($extension) = @_;
1280 # Check for automatic de-ANSI-fication.
1281 $extension = '$U' . $extension
1282 if option 'ansi2knr';
1284 $get_object_extension_was_run = 1;
1286 return $extension;
1287 }
1289 # check_user_variables (@LIST)
1290 # ----------------------------
1291 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1292 # otherwise.
1293 sub check_user_variables (@)
1294 {
1295 my @dont_override = @_;
1296 foreach my $flag (@dont_override)
1297 {
1298 my $var = var $flag;
1299 if ($var)
1300 {
1301 for my $cond ($var->conditions->conds)
1302 {
1303 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1304 {
1305 msg_cond_var ('gnu', $cond, $flag,
1306 "`$flag' is a user variable, "
1307 . "you should not override it;\n"
1308 . "use `AM_$flag' instead.");
1309 }
1310 }
1311 }
1312 }
1313 }
1315 # Call finish function for each language that was used.
1316 sub handle_languages
1317 {
1318 if (! option 'no-dependencies')
1319 {
1320 # Include auto-dep code. Don't include it if DEP_FILES would
1321 # be empty.
1322 if (&saw_sources_p (0) && keys %dep_files)
1323 {
1324 # Set location of depcomp.
1325 &define_variable ('depcomp',
1326 "\$(SHELL) $am_config_aux_dir/depcomp",
1327 INTERNAL);
1328 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1330 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1332 my @deplist = sort keys %dep_files;
1333 # Generate each `include' individually. Irix 6 make will
1334 # not properly include several files resulting from a
1335 # variable expansion; generating many separate includes
1336 # seems safest.
1337 $output_rules .= "\n";
1338 foreach my $iter (@deplist)
1339 {
1340 $output_rules .= (subst ('AMDEP_TRUE')
1341 . subst ('am__include')
1342 . ' '
1343 . subst ('am__quote')
1344 . $iter
1345 . subst ('am__quote')
1346 . "\n");
1347 }
1349 # Compute the set of directories to remove in distclean-depend.
1350 my @depdirs = uniq (map { dirname ($_) } @deplist);
1351 $output_rules .= &file_contents ('depend',
1352 new Automake::Location,
1353 DEPDIRS => "@depdirs");
1354 }
1355 }
1356 else
1357 {
1358 &define_variable ('depcomp', '', INTERNAL);
1359 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1360 }
1362 my %done;
1364 # Is the c linker needed?
1365 my $needs_c = 0;
1366 foreach my $ext (sort keys %extension_seen)
1367 {
1368 next unless $extension_map{$ext};
1370 my $lang = $languages{$extension_map{$ext}};
1372 my $rule_file = $lang->rule_file || 'depend2';
1374 # Get information on $LANG.
1375 my $pfx = $lang->autodep;
1376 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1378 my ($AMDEP, $FASTDEP) =
1379 (option 'no-dependencies' || $lang->autodep eq 'no')
1380 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1382 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1383 my $silent = silent_flag ();
1385 my %transform = ('EXT' => $ext,
1386 'PFX' => $pfx,
1387 'FPFX' => $fpfx,
1388 'AMDEP' => $AMDEP,
1389 'FASTDEP' => $FASTDEP,
1390 '-c' => $lang->compile_flag || '',
1391 # These are not used, but they need to be defined
1392 # so &transform do not complain.
1393 SUBDIROBJ => 0,
1394 'DERIVED-EXT' => 'BUG',
1395 DIST_SOURCE => 1,
1396 VERBOSE => $verbose,
1397 SILENT => $silent,
1398 );
1400 # Generate the appropriate rules for this extension.
1401 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1402 || defined $lang->compile)
1403 {
1404 # Some C compilers don't support -c -o. Use it only if really
1405 # needed.
1406 my $output_flag = $lang->output_flag || '';
1407 $output_flag = '-o'
1408 if (! $output_flag
1409 && $lang->name eq 'c'
1410 && option 'subdir-objects');
1412 # Compute a possible derived extension.
1413 # This is not used by depend2.am.
1414 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1416 # When we output an inference rule like `.c.o:' we
1417 # have two cases to consider: either subdir-objects
1418 # is used, or it is not.
1419 #
1420 # In the latter case the rule is used to build objects
1421 # in the current directory, and dependencies always
1422 # go into `./$(DEPDIR)/'. We can hard-code this value.
1423 #
1424 # In the former case the rule can be used to build
1425 # objects in sub-directories too. Dependencies should
1426 # go into the appropriate sub-directories, e.g.,
1427 # `sub/$(DEPDIR)/'. The value of this directory
1428 # needs to be computed on-the-fly.
1429 #
1430 # DEPBASE holds the name of this directory, plus the
1431 # basename part of the object file (extensions Po, TPo,
1432 # Plo, TPlo will be added later as appropriate). It is
1433 # either hardcoded, or a shell variable (`$depbase') that
1434 # will be computed by the rule.
1435 my $depbase =
1436 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1437 $output_rules .=
1438 file_contents ($rule_file,
1439 new Automake::Location,
1440 %transform,
1441 GENERIC => 1,
1443 'DERIVED-EXT' => $der_ext,
1445 DEPBASE => $depbase,
1446 BASE => '$*',
1447 SOURCE => '$<',
1448 SOURCEFLAG => $sourceflags{$ext} || '',
1449 OBJ => '$@',
1450 OBJOBJ => '$@',
1451 LTOBJ => '$@',
1453 COMPILE => '$(' . $lang->compiler . ')',
1454 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1455 -o => $output_flag,
1456 SUBDIROBJ => !! option 'subdir-objects');
1457 }
1459 # Now include code for each specially handled object with this
1460 # language.
1461 my %seen_files = ();
1462 foreach my $file (@{$lang_specific_files{$lang->name}})
1463 {
1464 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1466 # We might see a given object twice, for instance if it is
1467 # used under different conditions.
1468 next if defined $seen_files{$obj};
1469 $seen_files{$obj} = 1;
1471 prog_error ("found " . $lang->name .
1472 " in handle_languages, but compiler not defined")
1473 unless defined $lang->compile;
1475 my $obj_compile = $lang->compile;
1477 # Rewrite each occurrence of `AM_$flag' in the compile
1478 # rule into `${derived}_$flag' if it exists.
1479 for my $flag (@{$lang->flags})
1480 {
1481 my $val = "${derived}_$flag";
1482 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1483 if set_seen ($val);
1484 }
1486 my $libtool_tag = '';
1487 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1488 {
1489 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1490 }
1492 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1493 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1495 my $ltverbose = define_verbose_libtool ();
1496 my $obj_ltcompile =
1497 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1498 . "--mode=compile $obj_compile";
1500 # We _need_ `-o' for per object rules.
1501 my $output_flag = $lang->output_flag || '-o';
1503 my $depbase = dirname ($obj);
1504 $depbase = ''
1505 if $depbase eq '.';
1506 $depbase .= '/'
1507 unless $depbase eq '';
1508 $depbase .= '$(DEPDIR)/' . basename ($obj);
1510 # Support for deansified files in subdirectories is ugly
1511 # enough to deserve an explanation.
1512 #
1513 # A Note about normal ansi2knr processing first. On
1514 #
1515 # AUTOMAKE_OPTIONS = ansi2knr
1516 # bin_PROGRAMS = foo
1517 # foo_SOURCES = foo.c
1518 #
1519 # we generate rules similar to:
1520 #
1521 # foo: foo$U.o; link ...
1522 # foo$U.o: foo$U.c; compile ...
1523 # foo_.c: foo.c; ansi2knr ...
1524 #
1525 # this is fairly compact, and will call ansi2knr depending
1526 # on the value of $U (`' or `_').
1527 #
1528 # It's harder with subdir sources. On
1529 #
1530 # AUTOMAKE_OPTIONS = ansi2knr
1531 # bin_PROGRAMS = foo
1532 # foo_SOURCES = sub/foo.c
1533 #
1534 # we have to create foo_.c in the current directory.
1535 # (Unless the user asks 'subdir-objects'.) This is important
1536 # in case the same file (`foo.c') is compiled from other
1537 # directories with different cpp options: foo_.c would
1538 # be preprocessed for only one set of options if it were
1539 # put in the subdirectory.
1540 #
1541 # Because foo$U.o must be built from either foo_.c or
1542 # sub/foo.c we can't be as concise as in the first example.
1543 # Instead we output
1544 #
1545 # foo: foo$U.o; link ...
1546 # foo_.o: foo_.c; compile ...
1547 # foo.o: sub/foo.c; compile ...
1548 # foo_.c: foo.c; ansi2knr ...
1549 #
1550 # This is why we'll now transform $rule_file twice
1551 # if we detect this case.
1552 # A first time we output the compile rule with `$U'
1553 # replaced by `_' and the source directory removed,
1554 # and another time we simply remove `$U'.
1555 #
1556 # Note that at this point $source (as computed by
1557 # &handle_single_transform) is `sub/foo$U.c'.
1558 # This can be confusing: it can be used as-is when
1559 # subdir-objects is set, otherwise you have to know
1560 # it really means `foo_.c' or `sub/foo.c'.
1561 my $objdir = dirname ($obj);
1562 my $srcdir = dirname ($source);
1563 if ($lang->ansi && $obj =~ /\$U/)
1564 {
1565 prog_error "`$obj' contains \$U, but `$source' doesn't."
1566 if $source !~ /\$U/;
1568 (my $source_ = $source) =~ s/\$U/_/g;
1569 # Output an additional rule if _.c and .c are not in
1570 # the same directory. (_.c is always in $objdir.)
1571 if ($objdir ne $srcdir)
1572 {
1573 (my $obj_ = $obj) =~ s/\$U/_/g;
1574 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1575 $source_ = basename ($source_);
1577 $output_rules .=
1578 file_contents ($rule_file,
1579 new Automake::Location,
1580 %transform,
1581 GENERIC => 0,
1583 DEPBASE => $depbase_,
1584 BASE => $obj_,
1585 SOURCE => $source_,
1586 SOURCEFLAG => $sourceflags{$srcext} || '',
1587 OBJ => "$obj_$myext",
1588 OBJOBJ => "$obj_.obj",
1589 LTOBJ => "$obj_.lo",
1591 COMPILE => $obj_compile,
1592 LTCOMPILE => $obj_ltcompile,
1593 -o => $output_flag,
1594 %file_transform);
1595 $obj =~ s/\$U//g;
1596 $depbase =~ s/\$U//g;
1597 $source =~ s/\$U//g;
1598 }
1599 }
1601 $output_rules .=
1602 file_contents ($rule_file,
1603 new Automake::Location,
1604 %transform,
1605 GENERIC => 0,
1607 DEPBASE => $depbase,
1608 BASE => $obj,
1609 SOURCE => $source,
1610 SOURCEFLAG => $sourceflags{$srcext} || '',
1611 # Use $myext and not `.o' here, in case
1612 # we are actually building a new source
1613 # file -- e.g. via yacc.
1614 OBJ => "$obj$myext",
1615 OBJOBJ => "$obj.obj",
1616 LTOBJ => "$obj.lo",
1618 VERBOSE => $verbose,
1619 SILENT => $silent,
1620 COMPILE => $obj_compile,
1621 LTCOMPILE => $obj_ltcompile,
1622 -o => $output_flag,
1623 %file_transform);
1624 }
1626 # The rest of the loop is done once per language.
1627 next if defined $done{$lang};
1628 $done{$lang} = 1;
1630 # Load the language dependent Makefile chunks.
1631 my %lang = map { uc ($_) => 0 } keys %languages;
1632 $lang{uc ($lang->name)} = 1;
1633 $output_rules .= file_contents ('lang-compile',
1634 new Automake::Location,
1635 %transform, %lang);
1637 # If the source to a program consists entirely of code from a
1638 # `pure' language, for instance C++ or Fortran 77, then we
1639 # don't need the C compiler code. However if we run into
1640 # something unusual then we do generate the C code. There are
1641 # probably corner cases here that do not work properly.
1642 # People linking Java code to Fortran code deserve pain.
1643 $needs_c ||= ! $lang->pure;
1645 define_compiler_variable ($lang)
1646 if ($lang->compile);
1648 define_linker_variable ($lang)
1649 if ($lang->link);
1651 require_variables ("$am_file.am", $lang->Name . " source seen",
1652 TRUE, @{$lang->config_vars});
1654 # Call the finisher.
1655 $lang->finish;
1657 # Flags listed in `->flags' are user variables (per GNU Standards),
1658 # they should not be overridden in the Makefile...
1659 my @dont_override = @{$lang->flags};
1660 # ... and so is LDFLAGS.
1661 push @dont_override, 'LDFLAGS' if $lang->link;
1663 check_user_variables @dont_override;
1664 }
1666 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1667 # suffix rule was learned), don't bother with the C stuff. But if
1668 # anything else creeps in, then use it.
1669 $needs_c = 1
1670 if $need_link || suffix_rules_count > 1;
1672 if ($needs_c)
1673 {
1674 &define_compiler_variable ($languages{'c'})
1675 unless defined $done{$languages{'c'}};
1676 define_linker_variable ($languages{'c'});
1677 }
1679 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1680 define_verbose_tagvar ('GEN');
1681 }
1684 # append_exeext { PREDICATE } $MACRO
1685 # ----------------------------------
1686 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1687 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1688 # ignored.
1689 #
1690 # This is typically used on all filenames of *_PROGRAMS, and filenames
1691 # of TESTS that are programs.
1692 sub append_exeext (&$)
1693 {
1694 my ($pred, $macro) = @_;
1696 transform_variable_recursively
1697 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1698 sub {
1699 my ($subvar, $val, $cond, $full_cond) = @_;
1700 # Append $(EXEEXT) unless the user did it already, or it's a
1701 # @substitution@.
1702 $val .= '$(EXEEXT)'
1703 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1704 return $val;
1705 });
1706 }
1709 # Check to make sure a source defined in LIBOBJS is not explicitly
1710 # mentioned. This is a separate function (as opposed to being inlined
1711 # in handle_source_transform) because it isn't always appropriate to
1712 # do this check.
1713 sub check_libobjs_sources
1714 {
1715 my ($one_file, $unxformed) = @_;
1717 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1718 'dist_EXTRA_', 'nodist_EXTRA_')
1719 {
1720 my @files;
1721 my $varname = $prefix . $one_file . '_SOURCES';
1722 my $var = var ($varname);
1723 if ($var)
1724 {
1725 @files = $var->value_as_list_recursive;
1726 }
1727 elsif ($prefix eq '')
1728 {
1729 @files = ($unxformed . '.c');
1730 }
1731 else
1732 {
1733 next;
1734 }
1736 foreach my $file (@files)
1737 {
1738 err_var ($prefix . $one_file . '_SOURCES',
1739 "automatically discovered file `$file' should not" .
1740 " be explicitly mentioned")
1741 if defined $libsources{$file};
1742 }
1743 }
1744 }
1747 # @OBJECTS
1748 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1749 # -----------------------------------------------------------------------------
1750 # Does much of the actual work for handle_source_transform.
1751 # Arguments are:
1752 # $VAR is the name of the variable that the source filenames come from
1753 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1754 # $DERIVED is the name of resulting executable or library
1755 # $OBJ is the object extension (e.g., `$U.lo')
1756 # $FILE the source file to transform
1757 # %TRANSFORM contains extras arguments to pass to file_contents
1758 # when producing explicit rules
1759 # Result is a list of the names of objects
1760 # %linkers_used will be updated with any linkers needed
1761 sub handle_single_transform ($$$$$%)
1762 {
1763 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1764 my @files = ($_file);
1765 my @result = ();
1766 my $nonansi_obj = $obj;
1767 $nonansi_obj =~ s/\$U//g;
1769 # Turn sources into objects. We use a while loop like this
1770 # because we might add to @files in the loop.
1771 while (scalar @files > 0)
1772 {
1773 $_ = shift @files;
1775 # Configure substitutions in _SOURCES variables are errors.
1776 if (/^\@.*\@$/)
1777 {
1778 my $parent_msg = '';
1779 $parent_msg = "\nand is referred to from `$topparent'"
1780 if $topparent ne $var->name;
1781 err_var ($var,
1782 "`" . $var->name . "' includes configure substitution `$_'"
1783 . $parent_msg . ";\nconfigure " .
1784 "substitutions are not allowed in _SOURCES variables");
1785 next;
1786 }
1788 # If the source file is in a subdirectory then the `.o' is put
1789 # into the current directory, unless the subdir-objects option
1790 # is in effect.
1792 # Split file name into base and extension.
1793 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1794 my $full = $_;
1795 my $directory = $1 || '';
1796 my $base = $2;
1797 my $extension = $3;
1799 # We must generate a rule for the object if it requires its own flags.
1800 my $renamed = 0;
1801 my ($linker, $object);
1803 # This records whether we've seen a derived source file (e.g.
1804 # yacc output).
1805 my $derived_source = 0;
1807 # This holds the `aggregate context' of the file we are
1808 # currently examining. If the file is compiled with
1809 # per-object flags, then it will be the name of the object.
1810 # Otherwise it will be `AM'. This is used by the target hook
1811 # language function.
1812 my $aggregate = 'AM';
1814 $extension = &derive_suffix ($extension, $nonansi_obj);
1815 my $lang;
1816 if ($extension_map{$extension} &&
1817 ($lang = $languages{$extension_map{$extension}}))
1818 {
1819 # Found the language, so see what it says.
1820 &saw_extension ($extension);
1822 # Do we have per-executable flags for this executable?
1823 my $have_per_exec_flags = 0;
1824 my @peflags = @{$lang->flags};
1825 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1826 foreach my $flag (@peflags)
1827 {
1828 if (set_seen ("${derived}_$flag"))
1829 {
1830 $have_per_exec_flags = 1;
1831 last;
1832 }
1833 }
1835 # Note: computed subr call. The language rewrite function
1836 # should return one of the LANG_* constants. It could
1837 # also return a list whose first value is such a constant
1838 # and whose second value is a new source extension which
1839 # should be applied. This means this particular language
1840 # generates another source file which we must then process
1841 # further.
1842 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1843 my ($r, $source_extension)
1844 = &$subr ($directory, $base, $extension,
1845 $nonansi_obj, $have_per_exec_flags, $var);
1846 # Skip this entry if we were asked not to process it.
1847 next if $r == LANG_IGNORE;
1849 # Now extract linker and other info.
1850 $linker = $lang->linker;
1852 my $this_obj_ext;
1853 if (defined $source_extension)
1854 {
1855 $this_obj_ext = $source_extension;
1856 $derived_source = 1;
1857 }
1858 elsif ($lang->ansi)
1859 {
1860 $this_obj_ext = $obj;
1861 }
1862 else
1863 {
1864 $this_obj_ext = $nonansi_obj;
1865 }
1866 $object = $base . $this_obj_ext;
1868 if ($have_per_exec_flags)
1869 {
1870 # We have a per-executable flag in effect for this
1871 # object. In this case we rewrite the object's
1872 # name to ensure it is unique.
1874 # We choose the name `DERIVED_OBJECT' to ensure
1875 # (1) uniqueness, and (2) continuity between
1876 # invocations. However, this will result in a
1877 # name that is too long for losing systems, in
1878 # some situations. So we provide _SHORTNAME to
1879 # override.
1881 my $dname = $derived;
1882 my $var = var ($derived . '_SHORTNAME');
1883 if ($var)
1884 {
1885 # FIXME: should use the same Condition as
1886 # the _SOURCES variable. But this is really
1887 # silly overkill -- nobody should have
1888 # conditional shortnames.
1889 $dname = $var->variable_value;
1890 }
1891 $object = $dname . '-' . $object;
1893 prog_error ($lang->name . " flags defined without compiler")
1894 if ! defined $lang->compile;
1896 $renamed = 1;
1897 }
1899 # If rewrite said it was ok, put the object into a
1900 # subdir.
1901 if ($r == LANG_SUBDIR && $directory ne '')
1902 {
1903 $object = $directory . '/' . $object;
1904 }
1906 # If the object file has been renamed (because per-target
1907 # flags are used) we cannot compile the file with an
1908 # inference rule: we need an explicit rule.
1909 #
1910 # If the source is in a subdirectory and the object is in
1911 # the current directory, we also need an explicit rule.
1912 #
1913 # If both source and object files are in a subdirectory
1914 # (this happens when the subdir-objects option is used),
1915 # then the inference will work.
1916 #
1917 # The latter case deserves a historical note. When the
1918 # subdir-objects option was added on 1999-04-11 it was
1919 # thought that inferences rules would work for
1920 # subdirectory objects too. Later, on 1999-11-22,
1921 # automake was changed to output explicit rules even for
1922 # subdir-objects. Nobody remembers why, but this occurred
1923 # soon after the merge of the user-dep-gen-branch so it
1924 # might be related. In late 2003 people complained about
1925 # the size of the generated Makefile.ins (libgcj, with
1926 # 2200+ subdir objects was reported to have a 9MB
1927 # Makefile), so we now rely on inference rules again.
1928 # Maybe we'll run across the same issue as in the past,
1929 # but at least this time we can document it. However since
1930 # dependency tracking has evolved it is possible that
1931 # our old problem no longer exists.
1932 # Using inference rules for subdir-objects has been tested
1933 # with GNU make, Solaris make, Ultrix make, BSD make,
1934 # HP-UX make, and OSF1 make successfully.
1935 if ($renamed
1936 || ($directory ne '' && ! option 'subdir-objects')
1937 # We must also use specific rules for a nodist_ source
1938 # if its language requests it.
1939 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1940 {
1941 my $obj_sans_ext = substr ($object, 0,
1942 - length ($this_obj_ext));
1943 my $full_ansi;
1944 if ($directory ne '')
1945 {
1946 $full_ansi = $directory . '/' . $base . $extension;
1947 }
1948 else
1949 {
1950 $full_ansi = $base . $extension;
1951 }
1953 if ($lang->ansi && option 'ansi2knr')
1954 {
1955 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1956 $obj_sans_ext .= '$U';
1957 }
1959 my @specifics = ($full_ansi, $obj_sans_ext,
1960 # Only use $this_obj_ext in the derived
1961 # source case because in the other case we
1962 # *don't* want $(OBJEXT) to appear here.
1963 ($derived_source ? $this_obj_ext : '.o'),
1964 $extension);
1966 # If we renamed the object then we want to use the
1967 # per-executable flag name. But if this is simply a
1968 # subdir build then we still want to use the AM_ flag
1969 # name.
1970 if ($renamed)
1971 {
1972 unshift @specifics, $derived;
1973 $aggregate = $derived;
1974 }
1975 else
1976 {
1977 unshift @specifics, 'AM';
1978 }
1980 # Each item on this list is a reference to a list consisting
1981 # of four values followed by additional transform flags for
1982 # file_contents. The four values are the derived flag prefix
1983 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1984 # source file, the base name of the output file, and
1985 # the extension for the object file.
1986 push (@{$lang_specific_files{$lang->name}},
1987 [@specifics, %transform]);
1988 }
1989 }
1990 elsif ($extension eq $nonansi_obj)
1991 {
1992 # This is probably the result of a direct suffix rule.
1993 # In this case we just accept the rewrite.
1994 $object = "$base$extension";
1995 $object = "$directory/$object" if $directory ne '';
1996 $linker = '';
1997 }
1998 else
1999 {
2000 # No error message here. Used to have one, but it was
2001 # very unpopular.
2002 # FIXME: we could potentially do more processing here,
2003 # perhaps treating the new extension as though it were a
2004 # new source extension (as above). This would require
2005 # more restructuring than is appropriate right now.
2006 next;
2007 }
2009 err_am "object `$object' created by `$full' and `$object_map{$object}'"
2010 if (defined $object_map{$object}
2011 && $object_map{$object} ne $full);
2013 my $comp_val = (($object =~ /\.lo$/)
2014 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2015 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2016 if (defined $object_compilation_map{$comp_obj}
2017 && $object_compilation_map{$comp_obj} != 0
2018 # Only see the error once.
2019 && ($object_compilation_map{$comp_obj}
2020 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2021 && $object_compilation_map{$comp_obj} != $comp_val)
2022 {
2023 err_am "object `$comp_obj' created both with libtool and without";
2024 }
2025 $object_compilation_map{$comp_obj} |= $comp_val;
2027 if (defined $lang)
2028 {
2029 # Let the language do some special magic if required.
2030 $lang->target_hook ($aggregate, $object, $full, %transform);
2031 }
2033 if ($derived_source)
2034 {
2035 prog_error ($lang->name . " has automatic dependency tracking")
2036 if $lang->autodep ne 'no';
2037 # Make sure this new source file is handled next. That will
2038 # make it appear to be at the right place in the list.
2039 unshift (@files, $object);
2040 # Distribute derived sources unless the source they are
2041 # derived from is not.
2042 &push_dist_common ($object)
2043 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2044 next;
2045 }
2047 $linkers_used{$linker} = 1;
2049 push (@result, $object);
2051 if (! defined $object_map{$object})
2052 {
2053 my @dep_list = ();
2054 $object_map{$object} = $full;
2056 # If resulting object is in subdir, we need to make
2057 # sure the subdir exists at build time.
2058 if ($object =~ /\//)
2059 {
2060 # FIXME: check that $DIRECTORY is somewhere in the
2061 # project
2063 # For Java, the way we're handling it right now, a
2064 # `..' component doesn't make sense.
2065 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2066 {
2067 err_am "`$full' should not contain a `..' component";
2068 }
2070 # Make sure object is removed by `make mostlyclean'.
2071 $compile_clean_files{$object} = MOSTLY_CLEAN;
2072 # If we have a libtool object then we also must remove
2073 # the ordinary .o.
2074 if ($object =~ /\.lo$/)
2075 {
2076 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2077 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2079 # Remove any libtool object in this directory.
2080 $libtool_clean_directories{$directory} = 1;
2081 }
2083 push (@dep_list, require_build_directory ($directory));
2085 # If we're generating dependencies, we also want
2086 # to make sure that the appropriate subdir of the
2087 # .deps directory is created.
2088 push (@dep_list,
2089 require_build_directory ($directory . '/$(DEPDIR)'))
2090 unless option 'no-dependencies';
2091 }
2093 &pretty_print_rule ($object . ':', "\t", @dep_list)
2094 if scalar @dep_list > 0;
2095 }
2097 # Transform .o or $o file into .P file (for automatic
2098 # dependency code).
2099 if ($lang && $lang->autodep ne 'no')
2100 {
2101 my $depfile = $object;
2102 $depfile =~ s/\.([^.]*)$/.P$1/;
2103 $depfile =~ s/\$\(OBJEXT\)$/o/;
2104 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
2105 . basename ($depfile)} = 1;
2106 }
2107 }
2109 return @result;
2110 }
2113 # $LINKER
2114 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2115 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2116 # ---------------------------------------------------------------------------
2117 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2118 #
2119 # Arguments are:
2120 # $VAR is the name of the _SOURCES variable
2121 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2122 # it will be generated and returned).
2123 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2124 # work done to determine the linker will be).
2125 # $ONE_FILE is the canonical (transformed) name of object to build
2126 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2127 # $TOPPARENT is the _SOURCES variable being processed.
2128 # $WHERE context into which this definition is done
2129 # %TRANSFORM extra arguments to pass to file_contents when producing
2130 # rules
2131 #
2132 # Result is a pair ($LINKER, $OBJVAR):
2133 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2134 sub define_objects_from_sources ($$$$$$$%)
2135 {
2136 my ($var, $objvar, $nodefine, $one_file,
2137 $obj, $topparent, $where, %transform) = @_;
2139 my $needlinker = "";
2141 transform_variable_recursively
2142 ($var, $objvar, 'am__objects', $nodefine, $where,
2143 # The transform code to run on each filename.
2144 sub {
2145 my ($subvar, $val, $cond, $full_cond) = @_;
2146 my @trans = handle_single_transform ($subvar, $topparent,
2147 $one_file, $obj, $val,
2148 %transform);
2149 $needlinker = "true" if @trans;
2150 return @trans;
2151 });
2153 return $needlinker;
2154 }
2157 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2158 # -----------------------------------------------------------------------------
2159 # Handle SOURCE->OBJECT transform for one program or library.
2160 # Arguments are:
2161 # canonical (transformed) name of target to build
2162 # actual target of object to build
2163 # object extension (i.e., either `.o' or `$o')
2164 # location of the source variable
2165 # extra arguments to pass to file_contents when producing rules
2166 # Return the name of the linker variable that must be used.
2167 # Empty return means just use `LINK'.
2168 sub handle_source_transform ($$$$%)
2169 {
2170 # one_file is canonical name. unxformed is given name. obj is
2171 # object extension.
2172 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2174 my $linker = '';
2176 # No point in continuing if _OBJECTS is defined.
2177 return if reject_var ($one_file . '_OBJECTS',
2178 $one_file . '_OBJECTS should not be defined');
2180 my %used_pfx = ();
2181 my $needlinker;
2182 %linkers_used = ();
2183 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2184 'dist_EXTRA_', 'nodist_EXTRA_')
2185 {
2186 my $varname = $prefix . $one_file . "_SOURCES";
2187 my $var = var $varname;
2188 next unless $var;
2190 # We are going to define _OBJECTS variables using the prefix.
2191 # Then we glom them all together. So we can't use the null
2192 # prefix here as we need it later.
2193 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2195 # Keep track of which prefixes we saw.
2196 $used_pfx{$xpfx} = 1
2197 unless $prefix =~ /EXTRA_/;
2199 push @sources, "\$($varname)";
2200 push @dist_sources, shadow_unconditionally ($varname, $where)
2201 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2203 $needlinker |=
2204 define_objects_from_sources ($varname,
2205 $xpfx . $one_file . '_OBJECTS',
2206 $prefix =~ /EXTRA_/,
2207 $one_file, $obj, $varname, $where,
2208 DIST_SOURCE => ($prefix !~ /^nodist_/),
2209 %transform);
2210 }
2211 if ($needlinker)
2212 {
2213 $linker ||= &resolve_linker (%linkers_used);
2214 }
2216 my @keys = sort keys %used_pfx;
2217 if (scalar @keys == 0)
2218 {
2219 # The default source for libfoo.la is libfoo.c, but for
2220 # backward compatibility we first look at libfoo_la.c,
2221 # if no default source suffix is given.
2222 my $old_default_source = "$one_file.c";
2223 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2224 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2225 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2226 if $default_source_ext =~ /[\t ]/;
2227 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2228 if ($old_default_source ne $default_source
2229 && !$ext_var
2230 && (rule $old_default_source
2231 || rule '$(srcdir)/' . $old_default_source
2232 || rule '${srcdir}/' . $old_default_source
2233 || -f $old_default_source))
2234 {
2235 my $loc = $where->clone;
2236 $loc->pop_context;
2237 msg ('obsolete', $loc,
2238 "the default source for `$unxformed' has been changed "
2239 . "to `$default_source'.\n(Using `$old_default_source' for "
2240 . "backward compatibility.)");
2241 $default_source = $old_default_source;
2242 }
2243 # If a rule exists to build this source with a $(srcdir)
2244 # prefix, use that prefix in our variables too. This is for
2245 # the sake of BSD Make.
2246 if (rule '$(srcdir)/' . $default_source
2247 || rule '${srcdir}/' . $default_source)
2248 {
2249 $default_source = '$(srcdir)/' . $default_source;
2250 }
2252 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2253 push (@sources, $default_source);
2254 push (@dist_sources, $default_source);
2256 %linkers_used = ();
2257 my (@result) =
2258 handle_single_transform ($one_file . '_SOURCES',
2259 $one_file . '_SOURCES',
2260 $one_file, $obj,
2261 $default_source, %transform);
2262 $linker ||= &resolve_linker (%linkers_used);
2263 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2264 }
2265 else
2266 {
2267 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2268 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2269 }
2271 # If we want to use `LINK' we must make sure it is defined.
2272 if ($linker eq '')
2273 {
2274 $need_link = 1;
2275 }
2277 return $linker;
2278 }
2281 # handle_lib_objects ($XNAME, $VAR)
2282 # ---------------------------------
2283 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2284 # Also, generate _DEPENDENCIES variable if appropriate.
2285 # Arguments are:
2286 # transformed name of object being built, or empty string if no object
2287 # name of _LDADD/_LIBADD-type variable to examine
2288 # Returns 1 if LIBOBJS seen, 0 otherwise.
2289 sub handle_lib_objects
2290 {
2291 my ($xname, $varname) = @_;
2293 my $var = var ($varname);
2294 prog_error "handle_lib_objects: `$varname' undefined"
2295 unless $var;
2296 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2297 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2298 my $prefix = $1 || 'AM_';
2300 my $seen_libobjs = 0;
2301 my $flagvar = 0;
2303 transform_variable_recursively
2304 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2305 ! $xname, INTERNAL,
2306 # Transformation function, run on each filename.
2307 sub {
2308 my ($subvar, $val, $cond, $full_cond) = @_;
2310 if ($val =~ /^-/)
2311 {
2312 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2313 if ($val !~ /^-[lL]/ &&
2314 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2315 # for Libtool libraries or programs. (Actually we are a bit
2316 # laxe here since this code also applies to non-libtool
2317 # libraries or programs, for which -dlopen and -dlopreopen
2318 # are pure nonsense. Diagnosing this doesn't seem very
2319 # important: the developer will quickly get complaints from
2320 # the linker.)
2321 $val !~ /^-dl(?:pre)?open$/ &&
2322 # Only get this error once.
2323 ! $flagvar)
2324 {
2325 $flagvar = 1;
2326 # FIXME: should display a stack of nested variables
2327 # as context when $var != $subvar.
2328 err_var ($var, "linker flags such as `$val' belong in "
2329 . "`${prefix}LDFLAGS");
2330 }
2331 return ();
2332 }
2333 elsif ($val !~ /^\@.*\@$/)
2334 {
2335 # Assume we have a file of some sort, and output it into the
2336 # dependency variable. Autoconf substitutions are not output;
2337 # rarely is a new dependency substituted into e.g. foo_LDADD
2338 # -- but bad things (e.g. -lX11) are routinely substituted.
2339 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2340 # and handled specially below.
2341 return $val;
2342 }
2343 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2344 {
2345 handle_LIBOBJS ($subvar, $cond, $1);
2346 $seen_libobjs = 1;
2347 return $val;
2348 }
2349 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2350 {
2351 handle_ALLOCA ($subvar, $cond, $1);
2352 return $val;
2353 }
2354 else
2355 {
2356 return ();
2357 }
2358 });
2360 return $seen_libobjs;
2361 }
2363 # handle_LIBOBJS_or_ALLOCA ($VAR)
2364 # -------------------------------
2365 # Definitions common to LIBOBJS and ALLOCA.
2366 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2367 sub handle_LIBOBJS_or_ALLOCA ($)
2368 {
2369 my ($var) = @_;
2371 my $dir = '';
2373 # If LIBOBJS files must be built in another directory we have
2374 # to define LIBOBJDIR and ensure the files get cleaned.
2375 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2376 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2377 if ($config_libobj_dir
2378 && $relative_dir ne $config_libobj_dir)
2379 {
2380 if (option 'subdir-objects')
2381 {
2382 # In the top-level Makefile we do not use $(top_builddir), because
2383 # we are already there, and since the targets are built without
2384 # a $(top_builddir), it helps BSD Make to match them with
2385 # dependencies.
2386 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2387 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2388 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2389 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2390 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2391 # be created by libtool as a side-effect of creating LTLIBOBJS).
2392 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2393 }
2394 else
2395 {
2396 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2397 . " `subdir-objects' is not set");
2398 }
2399 }
2401 return $dir;
2402 }
2404 sub handle_LIBOBJS ($$$)
2405 {
2406 my ($var, $cond, $lt) = @_;
2407 my $myobjext = $lt ? 'lo' : 'o';
2408 $lt ||= '';
2410 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2411 if ! keys %libsources;
2413 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2415 foreach my $iter (keys %libsources)
2416 {
2417 if ($iter =~ /\.[cly]$/)
2418 {
2419 &saw_extension ($&);
2420 &saw_extension ('.c');
2421 }
2423 if ($iter =~ /\.h$/)
2424 {
2425 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2426 }
2427 elsif ($iter ne 'alloca.c')
2428 {
2429 my $rewrite = $iter;
2430 $rewrite =~ s/\.c$/.P$myobjext/;
2431 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2432 $rewrite = "^" . quotemeta ($iter) . "\$";
2433 # Only require the file if it is not a built source.
2434 my $bs = var ('BUILT_SOURCES');
2435 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2436 {
2437 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2438 }
2439 }
2440 }
2441 }
2443 sub handle_ALLOCA ($$$)
2444 {
2445 my ($var, $cond, $lt) = @_;
2446 my $myobjext = $lt ? 'lo' : 'o';
2447 $lt ||= '';
2448 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2450 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2451 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2452 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2453 &saw_extension ('.c');
2454 }
2456 # Canonicalize the input parameter
2457 sub canonicalize
2458 {
2459 my ($string) = @_;
2460 $string =~ tr/A-Za-z0-9_\@/_/c;
2461 return $string;
2462 }
2464 # Canonicalize a name, and check to make sure the non-canonical name
2465 # is never used. Returns canonical name. Arguments are name and a
2466 # list of suffixes to check for.
2467 sub check_canonical_spelling
2468 {
2469 my ($name, @suffixes) = @_;
2471 my $xname = &canonicalize ($name);
2472 if ($xname ne $name)
2473 {
2474 foreach my $xt (@suffixes)
2475 {
2476 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2477 }
2478 }
2480 return $xname;
2481 }
2484 # handle_compile ()
2485 # -----------------
2486 # Set up the compile suite.
2487 sub handle_compile ()
2488 {
2489 return
2490 unless $get_object_extension_was_run;
2492 # Boilerplate.
2493 my $default_includes = '';
2494 if (! option 'nostdinc')
2495 {
2496 my @incs = ('-I.', subst ('am__isrc'));
2498 my $var = var 'CONFIG_HEADER';
2499 if ($var)
2500 {
2501 foreach my $hdr (split (' ', $var->variable_value))
2502 {
2503 push @incs, '-I' . dirname ($hdr);
2504 }
2505 }
2506 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2507 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2508 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2509 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2510 # to just put @am__isrc@ right after `-I.', without a space.
2511 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2512 }
2514 my (@mostly_rms, @dist_rms);
2515 foreach my $item (sort keys %compile_clean_files)
2516 {
2517 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2518 {
2519 push (@mostly_rms, "\t-rm -f $item");
2520 }
2521 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2522 {
2523 push (@dist_rms, "\t-rm -f $item");
2524 }
2525 else
2526 {
2527 prog_error 'invalid entry in %compile_clean_files';
2528 }
2529 }
2531 my ($coms, $vars, $rules) =
2532 &file_contents_internal (1, "$libdir/am/compile.am",
2533 new Automake::Location,
2534 ('DEFAULT_INCLUDES' => $default_includes,
2535 'MOSTLYRMS' => join ("\n", @mostly_rms),
2536 'DISTRMS' => join ("\n", @dist_rms)));
2537 $output_vars .= $vars;
2538 $output_rules .= "$coms$rules";
2540 # Check for automatic de-ANSI-fication.
2541 if (option 'ansi2knr')
2542 {
2543 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2544 my $ansi2knr_dir = '';
2546 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2547 TRUE, "ANSI2KNR", "U");
2549 # topdir is where ansi2knr should be.
2550 if ($ansi2knr_filename eq 'ansi2knr')
2551 {
2552 # Only require ansi2knr files if they should appear in
2553 # this directory.
2554 require_file ($ansi2knr_where, FOREIGN,
2555 'ansi2knr.c', 'ansi2knr.1');
2557 # ansi2knr needs to be built before subdirs, so unshift it.
2558 unshift (@all, '$(ANSI2KNR)');
2559 }
2560 else
2561 {
2562 $ansi2knr_dir = dirname ($ansi2knr_filename);
2563 }
2565 $output_rules .= &file_contents ('ansi2knr',
2566 new Automake::Location,
2567 'ANSI2KNR-DIR' => $ansi2knr_dir);
2569 }
2570 }
2572 # handle_libtool ()
2573 # -----------------
2574 # Handle libtool rules.
2575 sub handle_libtool
2576 {
2577 return unless var ('LIBTOOL');
2579 # Libtool requires some files, but only at top level.
2580 # (Starting with Libtool 2.0 we do not have to bother. These
2581 # requirements are done with AC_REQUIRE_AUX_FILE.)
2582 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2583 if $relative_dir eq '.' && ! $libtool_new_api;
2585 my @libtool_rms;
2586 foreach my $item (sort keys %libtool_clean_directories)
2587 {
2588 my $dir = ($item eq '.') ? '' : "$item/";
2589 # .libs is for Unix, _libs for DOS.
2590 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2591 }
2593 check_user_variables 'LIBTOOLFLAGS';
2595 # Output the libtool compilation rules.
2596 $output_rules .= &file_contents ('libtool',
2597 new Automake::Location,
2598 LTRMS => join ("\n", @libtool_rms));
2599 }
2601 # handle_programs ()
2602 # ------------------
2603 # Handle C programs.
2604 sub handle_programs
2605 {
2606 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2607 'bin', 'sbin', 'libexec', 'pkglib',
2608 'noinst', 'check');
2609 return if ! @proglist;
2611 my $seen_global_libobjs =
2612 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2614 foreach my $pair (@proglist)
2615 {
2616 my ($where, $one_file) = @$pair;
2618 my $seen_libobjs = 0;
2619 my $obj = get_object_extension '.$(OBJEXT)';
2621 $known_programs{$one_file} = $where;
2623 # Canonicalize names and check for misspellings.
2624 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2625 '_SOURCES', '_OBJECTS',
2626 '_DEPENDENCIES');
2628 $where->push_context ("while processing program `$one_file'");
2629 $where->set (INTERNAL->get);
2631 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2632 NONLIBTOOL => 1, LIBTOOL => 0);
2634 if (var ($xname . "_LDADD"))
2635 {
2636 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2637 }
2638 else
2639 {
2640 # User didn't define prog_LDADD override. So do it.
2641 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2643 # This does a bit too much work. But we need it to
2644 # generate _DEPENDENCIES when appropriate.
2645 if (var ('LDADD'))
2646 {
2647 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2648 }
2649 }
2651 reject_var ($xname . '_LIBADD',
2652 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2654 set_seen ($xname . '_DEPENDENCIES');
2655 set_seen ($xname . '_LDFLAGS');
2657 # Determine program to use for link.
2658 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2659 $vlink = verbose_flag ($vlink || 'GEN');
2661 # If the resulting program lies into a subdirectory,
2662 # make sure this directory will exist.
2663 my $dirstamp = require_build_directory_maybe ($one_file);
2665 $libtool_clean_directories{dirname ($one_file)} = 1;
2667 $output_rules .= &file_contents ('program',
2668 $where,
2669 PROGRAM => $one_file,
2670 XPROGRAM => $xname,
2671 XLINK => $xlink,
2672 VERBOSE => $vlink,
2673 DIRSTAMP => $dirstamp,
2674 EXEEXT => '$(EXEEXT)');
2676 if ($seen_libobjs || $seen_global_libobjs)
2677 {
2678 if (var ($xname . '_LDADD'))
2679 {
2680 &check_libobjs_sources ($xname, $xname . '_LDADD');
2681 }
2682 elsif (var ('LDADD'))
2683 {
2684 &check_libobjs_sources ($xname, 'LDADD');
2685 }
2686 }
2687 }
2688 }
2691 # handle_libraries ()
2692 # -------------------
2693 # Handle libraries.
2694 sub handle_libraries
2695 {
2696 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2697 'lib', 'pkglib', 'noinst', 'check');
2698 return if ! @liblist;
2700 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2701 'noinst', 'check');
2703 if (@prefix)
2704 {
2705 my $var = rvar ($prefix[0] . '_LIBRARIES');
2706 $var->requires_variables ('library used', 'RANLIB');
2707 }
2709 &define_variable ('AR', 'ar', INTERNAL);
2710 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2711 &define_verbose_tagvar ('AR');
2713 foreach my $pair (@liblist)
2714 {
2715 my ($where, $onelib) = @$pair;
2717 my $seen_libobjs = 0;
2718 # Check that the library fits the standard naming convention.
2719 my $bn = basename ($onelib);
2720 if ($bn !~ /^lib.*\.a$/)
2721 {
2722 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2723 my $suggestion = dirname ($onelib) . "/$bn";
2724 $suggestion =~ s|^\./||g;
2725 msg ('error-gnu/warn', $where,
2726 "`$onelib' is not a standard library name\n"
2727 . "did you mean `$suggestion'?")
2728 }
2730 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2732 $where->push_context ("while processing library `$onelib'");
2733 $where->set (INTERNAL->get);
2735 my $obj = get_object_extension '.$(OBJEXT)';
2737 # Canonicalize names and check for misspellings.
2738 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2739 '_OBJECTS', '_DEPENDENCIES',
2740 '_AR');
2742 if (! var ($xlib . '_AR'))
2743 {
2744 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2745 }
2747 # Generate support for conditional object inclusion in
2748 # libraries.
2749 if (var ($xlib . '_LIBADD'))
2750 {
2751 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2752 {
2753 $seen_libobjs = 1;
2754 }
2755 }
2756 else
2757 {
2758 &define_variable ($xlib . "_LIBADD", '', $where);
2759 }
2761 reject_var ($xlib . '_LDADD',
2762 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2764 # Make sure we at look at this.
2765 set_seen ($xlib . '_DEPENDENCIES');
2767 &handle_source_transform ($xlib, $onelib, $obj, $where,
2768 NONLIBTOOL => 1, LIBTOOL => 0);
2770 # If the resulting library lies into a subdirectory,
2771 # make sure this directory will exist.
2772 my $dirstamp = require_build_directory_maybe ($onelib);
2773 my $verbose = verbose_flag ('AR');
2774 my $silent = silent_flag ();
2776 $output_rules .= &file_contents ('library',
2777 $where,
2778 VERBOSE => $verbose,
2779 SILENT => $silent,
2780 LIBRARY => $onelib,
2781 XLIBRARY => $xlib,
2782 DIRSTAMP => $dirstamp);
2784 if ($seen_libobjs)
2785 {
2786 if (var ($xlib . '_LIBADD'))
2787 {
2788 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2789 }
2790 }
2791 }
2792 }
2795 # handle_ltlibraries ()
2796 # ---------------------
2797 # Handle shared libraries.
2798 sub handle_ltlibraries
2799 {
2800 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2801 'noinst', 'lib', 'pkglib', 'check');
2802 return if ! @liblist;
2804 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2805 'noinst', 'check');
2807 if (@prefix)
2808 {
2809 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2810 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2811 }
2813 my %instdirs = ();
2814 my %instsubdirs = ();
2815 my %instconds = ();
2816 my %liblocations = (); # Location (in Makefile.am) of each library.
2818 foreach my $key (@prefix)
2819 {
2820 # Get the installation directory of each library.
2821 my $dir = $key;
2822 my $strip_subdir = 1;
2823 if ($dir =~ /^nobase_/)
2824 {
2825 $dir =~ s/^nobase_//;
2826 $strip_subdir = 0;
2827 }
2828 my $var = rvar ($key . '_LTLIBRARIES');
2830 # We reject libraries which are installed in several places
2831 # in the same condition, because we can only specify one
2832 # `-rpath' option.
2833 $var->traverse_recursively
2834 (sub
2835 {
2836 my ($var, $val, $cond, $full_cond) = @_;
2837 my $hcond = $full_cond->human;
2838 my $where = $var->rdef ($cond)->location;
2839 my $ldir = '';
2840 $ldir = '/' . dirname ($val)
2841 if (!$strip_subdir);
2842 # A library cannot be installed in different directory
2843 # in overlapping conditions.
2844 if (exists $instconds{$val})
2845 {
2846 my ($msg, $acond) =
2847 $instconds{$val}->ambiguous_p ($val, $full_cond);
2849 if ($msg)
2850 {
2851 error ($where, $msg, partial => 1);
2852 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2853 $dirtxt = "built for `$dir'"
2854 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2855 my $dircond =
2856 $full_cond->true ? "" : " in condition $hcond";
2858 error ($where, "`$val' should be $dirtxt$dircond ...",
2859 partial => 1);
2861 my $hacond = $acond->human;
2862 my $adir = $instdirs{$val}{$acond};
2863 my $adirtxt = "installed in `$adir'";
2864 $adirtxt = "built for `$adir'"
2865 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2866 || $adir eq 'check');
2867 my $adircond = $acond->true ? "" : " in condition $hacond";
2869 my $onlyone = ($dir ne $adir) ?
2870 ("\nLibtool libraries can be built for only one "
2871 . "destination.") : "";
2873 error ($liblocations{$val}{$acond},
2874 "... and should also be $adirtxt$adircond.$onlyone");
2875 return;
2876 }
2877 }
2878 else
2879 {
2880 $instconds{$val} = new Automake::DisjConditions;
2881 }
2882 $instdirs{$val}{$full_cond} = $dir;
2883 $instsubdirs{$val}{$full_cond} = $ldir;
2884 $liblocations{$val}{$full_cond} = $where;
2885 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2886 },
2887 sub
2888 {
2889 return ();
2890 },
2891 skip_ac_subst => 1);
2892 }
2894 foreach my $pair (@liblist)
2895 {
2896 my ($where, $onelib) = @$pair;
2898 my $seen_libobjs = 0;
2899 my $obj = get_object_extension '.lo';
2901 # Canonicalize names and check for misspellings.
2902 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2903 '_SOURCES', '_OBJECTS',
2904 '_DEPENDENCIES');
2906 # Check that the library fits the standard naming convention.
2907 my $libname_rx = '^lib.*\.la';
2908 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2909 my $ldvar2 = var ('LDFLAGS');
2910 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2911 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2912 {
2913 # Relax name checking for libtool modules.
2914 $libname_rx = '\.la';
2915 }
2917 my $bn = basename ($onelib);
2918 if ($bn !~ /$libname_rx$/)
2919 {
2920 my $type = 'library';
2921 if ($libname_rx eq '\.la')
2922 {
2923 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2924 $type = 'module';
2925 }
2926 else
2927 {
2928 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2929 }
2930 my $suggestion = dirname ($onelib) . "/$bn";
2931 $suggestion =~ s|^\./||g;
2932 msg ('error-gnu/warn', $where,
2933 "`$onelib' is not a standard libtool $type name\n"
2934 . "did you mean `$suggestion'?")
2935 }
2937 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2939 $where->push_context ("while processing Libtool library `$onelib'");
2940 $where->set (INTERNAL->get);
2942 # Make sure we look at these.
2943 set_seen ($xlib . '_LDFLAGS');
2944 set_seen ($xlib . '_DEPENDENCIES');
2946 # Generate support for conditional object inclusion in
2947 # libraries.
2948 if (var ($xlib . '_LIBADD'))
2949 {
2950 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2951 {
2952 $seen_libobjs = 1;
2953 }
2954 }
2955 else
2956 {
2957 &define_variable ($xlib . "_LIBADD", '', $where);
2958 }
2960 reject_var ("${xlib}_LDADD",
2961 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2964 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2965 NONLIBTOOL => 0, LIBTOOL => 1);
2967 # Determine program to use for link.
2968 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2969 $vlink = verbose_flag ($vlink || 'GEN');
2971 my $rpathvar = "am_${xlib}_rpath";
2972 my $rpath = "\$($rpathvar)";
2973 foreach my $rcond ($instconds{$onelib}->conds)
2974 {
2975 my $val;
2976 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2977 || $instdirs{$onelib}{$rcond} eq 'noinst'
2978 || $instdirs{$onelib}{$rcond} eq 'check')
2979 {
2980 # It's an EXTRA_ library, so we can't specify -rpath,
2981 # because we don't know where the library will end up.
2982 # The user probably knows, but generally speaking automake
2983 # doesn't -- and in fact configure could decide
2984 # dynamically between two different locations.
2985 $val = '';
2986 }
2987 else
2988 {
2989 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2990 $val .= $instsubdirs{$onelib}{$rcond}
2991 if defined $instsubdirs{$onelib}{$rcond};
2992 }
2993 if ($rcond->true)
2994 {
2995 # If $rcond is true there is only one condition and
2996 # there is no point defining an helper variable.
2997 $rpath = $val;
2998 }
2999 else
3000 {
3001 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3002 }
3003 }
3005 # If the resulting library lies into a subdirectory,
3006 # make sure this directory will exist.
3007 my $dirstamp = require_build_directory_maybe ($onelib);
3009 # Remember to cleanup .libs/ in this directory.
3010 my $dirname = dirname $onelib;
3011 $libtool_clean_directories{$dirname} = 1;
3013 $output_rules .= &file_contents ('ltlibrary',
3014 $where,
3015 LTLIBRARY => $onelib,
3016 XLTLIBRARY => $xlib,
3017 RPATH => $rpath,
3018 XLINK => $xlink,
3019 VERBOSE => $vlink,
3020 DIRSTAMP => $dirstamp);
3021 if ($seen_libobjs)
3022 {
3023 if (var ($xlib . '_LIBADD'))
3024 {
3025 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3026 }
3027 }
3028 }
3029 }
3031 # See if any _SOURCES variable were misspelled.
3032 sub check_typos ()
3033 {
3034 # It is ok if the user sets this particular variable.
3035 set_seen 'AM_LDFLAGS';
3037 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3038 {
3039 foreach my $var (variables $primary)
3040 {
3041 my $varname = $var->name;
3042 # A configure variable is always legitimate.
3043 next if exists $configure_vars{$varname};
3045 for my $cond ($var->conditions->conds)
3046 {
3047 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3048 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3049 . " program or\nlibrary has `$1' as canonical name"
3050 . " (possible typo)")
3051 unless $var->rdef ($cond)->seen;
3052 }
3053 }
3054 }
3055 }
3058 # Handle scripts.
3059 sub handle_scripts
3060 {
3061 # NOTE we no longer automatically clean SCRIPTS, because it is
3062 # useful to sometimes distribute scripts verbatim. This happens
3063 # e.g. in Automake itself.
3064 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3065 'bin', 'sbin', 'libexec', 'pkgdata',
3066 'noinst', 'check');
3067 }
3072 ## ------------------------ ##
3073 ## Handling Texinfo files. ##
3074 ## ------------------------ ##
3076 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3077 # &scan_texinfo_file ($FILENAME)
3078 # ------------------------------
3079 # $OUTFILE - name of the info file produced by $FILENAME.
3080 # $VFILE - name of the version.texi file used (undef if none).
3081 # @CLEAN_FILES - list of byproducts (indexes etc.)
3082 sub scan_texinfo_file ($)
3083 {
3084 my ($filename) = @_;
3086 # Some of the following extensions are always created, no matter
3087 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3088 # are only created when they are used. We used to scan $FILENAME
3089 # for their use, but that is not enough: they could be used in
3090 # included files. We can't scan included files because we don't
3091 # know the include path. Therefore we always erase these files, no
3092 # matter whether they are used or not.
3093 #
3094 # (tmp is only created if an @macro is used and a certain e-TeX
3095 # feature is not available.)
3096 my %clean_suffixes =
3097 map { $_ => 1 } (qw(aux log toc tmp
3098 cp cps
3099 fn fns
3100 ky kys
3101 vr vrs
3102 tp tps
3103 pg pgs)); # grep 'new.*index' texinfo.tex
3105 my $texi = new Automake::XFile "< $filename";
3106 verb "reading $filename";
3108 my ($outfile, $vfile);
3109 while ($_ = $texi->getline)
3110 {
3111 if (/^\@setfilename +(\S+)/)
3112 {
3113 # Honor only the first @setfilename. (It's possible to have
3114 # more occurrences later if the manual shows examples of how
3115 # to use @setfilename...)
3116 next if $outfile;
3118 $outfile = $1;
3119 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3120 {
3121 error ("$filename:$.",
3122 "output `$outfile' has unrecognized extension");
3123 return;
3124 }
3125 }
3126 # A "version.texi" file is actually any file whose name matches
3127 # "vers*.texi".
3128 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3129 {
3130 $vfile = $1;
3131 }
3133 # Try to find new or unused indexes.
3135 # Creating a new category of index.
3136 elsif (/^\@def(code)?index (\w+)/)
3137 {
3138 $clean_suffixes{$2} = 1;
3139 $clean_suffixes{"$2s"} = 1;
3140 }
3142 # Merging an index into an another.
3143 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3144 {
3145 delete $clean_suffixes{"$2s"};
3146 $clean_suffixes{"$3s"} = 1;
3147 }
3149 }
3151 if (! $outfile)
3152 {
3153 err_am "`$filename' missing \@setfilename";
3154 return;
3155 }
3157 my $infobase = basename ($filename);
3158 $infobase =~ s/\.te?xi(nfo)?$//;
3159 return ($outfile, $vfile,
3160 map { "$infobase.$_" } (sort keys %clean_suffixes));
3161 }
3164 # ($DIRSTAMP, @CLEAN_FILES)
3165 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3166 # ------------------------------------------------------------------
3167 # SOURCE - the source Texinfo file
3168 # DEST - the destination Info file
3169 # INSRC - wether DEST should be built in the source tree
3170 # DEPENDENCIES - known dependencies
3171 sub output_texinfo_build_rules ($$$@)
3172 {
3173 my ($source, $dest, $insrc, @deps) = @_;
3175 # Split `a.texi' into `a' and `.texi'.
3176 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3177 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3179 $ssfx ||= "";
3180 $dsfx ||= "";
3182 # We can output two kinds of rules: the "generic" rules use Make
3183 # suffix rules and are appropriate when $source and $dest do not lie
3184 # in a sub-directory; the "specific" rules are needed in the other
3185 # case.
3186 #
3187 # The former are output only once (this is not really apparent here,
3188 # but just remember that some logic deeper in Automake will not
3189 # output the same rule twice); while the later need to be output for
3190 # each Texinfo source.
3191 my $generic;
3192 my $makeinfoflags;
3193 my $sdir = dirname $source;
3194 if ($sdir eq '.' && dirname ($dest) eq '.')
3195 {
3196 $generic = 1;
3197 $makeinfoflags = '-I $(srcdir)';
3198 }
3199 else
3200 {
3201 $generic = 0;
3202 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3203 }
3205 # A directory can contain two kinds of info files: some built in the
3206 # source tree, and some built in the build tree. The rules are
3207 # different in each case. However we cannot output two different
3208 # set of generic rules. Because in-source builds are more usual, we
3209 # use generic rules in this case and fall back to "specific" rules
3210 # for build-dir builds. (It should not be a problem to invert this
3211 # if needed.)
3212 $generic = 0 unless $insrc;
3214 # We cannot use a suffix rule to build info files with an empty
3215 # extension. Otherwise we would output a single suffix inference
3216 # rule, with separate dependencies, as in
3217 #
3218 # .texi:
3219 # $(MAKEINFO) ...
3220 # foo.info: foo.texi
3221 #
3222 # which confuse Solaris make. (See the Autoconf manual for
3223 # details.) Therefore we use a specific rule in this case. This
3224 # applies to info files only (dvi and pdf files always have an
3225 # extension).
3226 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3228 # If the resulting file lie into a subdirectory,
3229 # make sure this directory will exist.
3230 my $dirstamp = require_build_directory_maybe ($dest);
3232 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3234 $output_rules .= file_contents ('texibuild',
3235 new Automake::Location,
3236 DEPS => "@deps",
3237 DEST_PREFIX => $dpfx,
3238 DEST_INFO_PREFIX => $dipfx,
3239 DEST_SUFFIX => $dsfx,
3240 DIRSTAMP => $dirstamp,
3241 GENERIC => $generic,
3242 GENERIC_INFO => $generic_info,
3243 INSRC => $insrc,
3244 MAKEINFOFLAGS => $makeinfoflags,
3245 SOURCE => ($generic
3246 ? '$<' : $source),
3247 SOURCE_INFO => ($generic_info
3248 ? '$<' : $source),
3249 SOURCE_REAL => $source,
3250 SOURCE_SUFFIX => $ssfx,
3251 );
3252 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3253 }
3256 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3257 # handle_texinfo_helper ($info_texinfos)
3258 # --------------------------------------
3259 # Handle all Texinfo source; helper for handle_texinfo.
3260 sub handle_texinfo_helper ($)
3261 {
3262 my ($info_texinfos) = @_;
3263 my (@infobase, @info_deps_list, @texi_deps);
3264 my %versions;
3265 my $done = 0;
3266 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3268 # Build a regex matching user-cleaned files.
3269 my $d = var 'DISTCLEANFILES';
3270 my $c = var 'CLEANFILES';
3271 my @f = ();
3272 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3273 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3274 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3275 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3277 foreach my $texi
3278 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3279 {
3280 my $infobase = $texi;
3281 $infobase =~ s/\.(txi|texinfo|texi)$//;
3283 if ($infobase eq $texi)
3284 {
3285 # FIXME: report line number.
3286 err_am "texinfo file `$texi' has unrecognized extension";
3287 next;
3288 }
3290 push @infobase, $infobase;
3292 # If 'version.texi' is referenced by input file, then include
3293 # automatic versioning capability.
3294 my ($out_file, $vtexi, @clean_files) =
3295 scan_texinfo_file ("$relative_dir/$texi")
3296 or next;
3297 push (@mostly_cleans, @clean_files);
3299 # If the Texinfo source is in a subdirectory, create the
3300 # resulting info in this subdirectory. If it is in the current
3301 # directory, try hard to not prefix "./" because it breaks the
3302 # generic rules.
3303 my $outdir = dirname ($texi) . '/';
3304 $outdir = "" if $outdir eq './';
3305 $out_file = $outdir . $out_file;
3307 # Until Automake 1.6.3, .info files were built in the
3308 # source tree. This was an obstacle to the support of
3309 # non-distributed .info files, and non-distributed .texi
3310 # files.
3311 #
3312 # * Non-distributed .texi files is important in some packages
3313 # where .texi files are built at make time, probably using
3314 # other binaries built in the package itself, maybe using
3315 # tools or information found on the build host. Because
3316 # these files are not distributed they are always rebuilt
3317 # at make time; they should therefore not lie in the source
3318 # directory. One plan was to support this using
3319 # nodist_info_TEXINFOS or something similar. (Doing this
3320 # requires some sanity checks. For instance Automake should
3321 # not allow:
3322 # dist_info_TEXINFOS = foo.texi
3323 # nodist_foo_TEXINFOS = included.texi
3324 # because a distributed file should never depend on a
3325 # non-distributed file.)
3326 #
3327 # * If .texi files are not distributed, then .info files should
3328 # not be distributed either. There are also cases where one
3329 # wants to distribute .texi files, but does not want to
3330 # distribute the .info files. For instance the Texinfo package
3331 # distributes the tool used to build these files; it would
3332 # be a waste of space to distribute them. It's not clear
3333 # which syntax we should use to indicate that .info files should
3334 # not be distributed. Akim Demaille suggested that eventually
3335 # we switch to a new syntax:
3336 # | Maybe we should take some inspiration from what's already
3337 # | done in the rest of Automake. Maybe there is too much
3338 # | syntactic sugar here, and you want
3339 # | nodist_INFO = bar.info
3340 # | dist_bar_info_SOURCES = bar.texi
3341 # | bar_texi_DEPENDENCIES = foo.texi
3342 # | with a bit of magic to have bar.info represent the whole
3343 # | bar*info set. That's a lot more verbose that the current
3344 # | situation, but it is # not new, hence the user has less
3345 # | to learn.
3346 # |
3347 # | But there is still too much room for meaningless specs:
3348 # | nodist_INFO = bar.info
3349 # | dist_bar_info_SOURCES = bar.texi
3350 # | dist_PS = bar.ps something-written-by-hand.ps
3351 # | nodist_bar_ps_SOURCES = bar.texi
3352 # | bar_texi_DEPENDENCIES = foo.texi
3353 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3354 #
3355 # Back to the point, it should be clear that in order to support
3356 # non-distributed .info files, we need to build them in the
3357 # build tree, not in the source tree (non-distributed .texi
3358 # files are less of a problem, because we do not output build
3359 # rules for them). In Automake 1.7 .info build rules have been
3360 # largely cleaned up so that .info files get always build in the
3361 # build tree, even when distributed. The idea was that
3362 # (1) if during a VPATH build the .info file was found to be
3363 # absent or out-of-date (in the source tree or in the
3364 # build tree), Make would rebuild it in the build tree.
3365 # If an up-to-date source-tree of the .info file existed,
3366 # make would not rebuild it in the build tree.
3367 # (2) having two copies of .info files, one in the source tree
3368 # and one (newer) in the build tree is not a problem
3369 # because `make dist' always pick files in the build tree
3370 # first.
3371 # However it turned out the be a bad idea for several reasons:
3372 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3373 # like GNU Make on point (1) above. These implementations
3374 # of Make would always rebuild .info files in the build
3375 # tree, even if such files were up to date in the source
3376 # tree. Consequently, it was impossible to perform a VPATH
3377 # build of a package containing Texinfo files using these
3378 # Make implementations.
3379 # (Refer to the Autoconf Manual, section "Limitation of
3380 # Make", paragraph "VPATH", item "target lookup", for
3381 # an account of the differences between these
3382 # implementations.)
3383 # * The GNU Coding Standards require these files to be built
3384 # in the source-tree (when they are distributed, that is).
3385 # * Keeping a fresher copy of distributed files in the
3386 # build tree can be annoying during development because
3387 # - if the files is kept under CVS, you really want it
3388 # to be updated in the source tree
3389 # - it is confusing that `make distclean' does not erase
3390 # all files in the build tree.
3391 #
3392 # Consequently, starting with Automake 1.8, .info files are
3393 # built in the source tree again. Because we still plan to
3394 # support non-distributed .info files at some point, we
3395 # have a single variable ($INSRC) that controls whether
3396 # the current .info file must be built in the source tree
3397 # or in the build tree. Actually this variable is switched
3398 # off for .info files that appear to be cleaned; this is
3399 # for backward compatibility with package such as Texinfo,
3400 # which do things like
3401 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3402 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3403 # # Do not create info files for distribution.
3404 # dist-info:
3405 # in order not to distribute .info files.
3406 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3408 my $soutdir = '$(srcdir)/' . $outdir;
3409 $outdir = $soutdir if $insrc;
3411 # If user specified file_TEXINFOS, then use that as explicit
3412 # dependency list.
3413 @texi_deps = ();
3414 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3416 my $canonical = canonicalize ($infobase);
3417 if (var ($canonical . "_TEXINFOS"))
3418 {
3419 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3420 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3421 }
3423 my ($dirstamp, @cfiles) =
3424 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3425 push (@texi_cleans, @cfiles);
3427 push (@info_deps_list, $out_file);
3429 # If a vers*.texi file is needed, emit the rule.
3430 if ($vtexi)
3431 {
3432 err_am ("`$vtexi', included in `$texi', "
3433 . "also included in `$versions{$vtexi}'")
3434 if defined $versions{$vtexi};
3435 $versions{$vtexi} = $texi;
3437 # We number the stamp-vti files. This is doable since the
3438 # actual names don't matter much. We only number starting
3439 # with the second one, so that the common case looks nice.
3440 my $vti = ($done ? $done : 'vti');
3441 ++$done;
3443 # This is ugly, but it is our historical practice.
3444 if ($config_aux_dir_set_in_configure_ac)
3445 {
3446 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3447 'mdate-sh');
3448 }
3449 else
3450 {
3451 require_file_with_macro (TRUE, 'info_TEXINFOS',
3452 FOREIGN, 'mdate-sh');
3453 }
3455 my $conf_dir;
3456 if ($config_aux_dir_set_in_configure_ac)
3457 {
3458 $conf_dir = "$am_config_aux_dir/";
3459 }
3460 else
3461 {
3462 $conf_dir = '$(srcdir)/';
3463 }
3464 $output_rules .= file_contents ('texi-vers',
3465 new Automake::Location,
3466 TEXI => $texi,
3467 VTI => $vti,
3468 STAMPVTI => "${soutdir}stamp-$vti",
3469 VTEXI => "$soutdir$vtexi",
3470 MDDIR => $conf_dir,
3471 DIRSTAMP => $dirstamp);
3472 }
3473 }
3475 # Handle location of texinfo.tex.
3476 my $need_texi_file = 0;
3477 my $texinfodir;
3478 if (var ('TEXINFO_TEX'))
3479 {
3480 # The user defined TEXINFO_TEX so assume he knows what he is
3481 # doing.
3482 $texinfodir = ('$(srcdir)/'
3483 . dirname (variable_value ('TEXINFO_TEX')));
3484 }
3485 elsif (option 'cygnus')
3486 {
3487 $texinfodir = '$(top_srcdir)/../texinfo';
3488 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3489 }
3490 elsif ($config_aux_dir_set_in_configure_ac)
3491 {
3492 $texinfodir = $am_config_aux_dir;
3493 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3494 $need_texi_file = 2; # so that we require_conf_file later
3495 }
3496 else
3497 {
3498 $texinfodir = '$(srcdir)';
3499 $need_texi_file = 1;
3500 }
3501 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3503 push (@dist_targets, 'dist-info');
3505 if (! option 'no-installinfo')
3506 {
3507 # Make sure documentation is made and installed first. Use
3508 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3509 # get run twice during "make all".
3510 unshift (@all, '$(INFO_DEPS)');
3511 }
3513 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3514 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3515 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3516 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3518 # This next isn't strictly needed now -- the places that look here
3519 # could easily be changed to look in info_TEXINFOS. But this is
3520 # probably better, in case noinst_TEXINFOS is ever supported.
3521 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3523 # Do some error checking. Note that this file is not required
3524 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3525 # up above.
3526 if ($need_texi_file && ! option 'no-texinfo.tex')
3527 {
3528 if ($need_texi_file > 1)
3529 {
3530 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3531 'texinfo.tex');
3532 }
3533 else
3534 {
3535 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3536 'texinfo.tex');
3537 }
3538 }
3540 return (makefile_wrap ("", "\t ", @mostly_cleans),
3541 makefile_wrap ("", "\t ", @texi_cleans),
3542 makefile_wrap ("", "\t ", @maint_cleans));
3543 }
3546 # handle_texinfo ()
3547 # -----------------
3548 # Handle all Texinfo source.
3549 sub handle_texinfo ()
3550 {
3551 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3552 # FIXME: I think this is an obsolete future feature name.
3553 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3555 my $info_texinfos = var ('info_TEXINFOS');
3556 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3557 if ($info_texinfos)
3558 {
3559 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3560 chomp $mostlyclean;
3561 chomp $clean;
3562 chomp $maintclean;
3563 }
3565 $output_rules .= file_contents ('texinfos',
3566 new Automake::Location,
3567 MOSTLYCLEAN => $mostlyclean,
3568 TEXICLEAN => $clean,
3569 MAINTCLEAN => $maintclean,
3570 'LOCAL-TEXIS' => !!$info_texinfos);
3571 }
3574 # Handle any man pages.
3575 sub handle_man_pages
3576 {
3577 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3579 # Find all the sections in use. We do this by first looking for
3580 # "standard" sections, and then looking for any additional
3581 # sections used in man_MANS.
3582 my (%sections, %notrans_sections, %trans_sections,
3583 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3584 # We handle nodist_ for uniformity. man pages aren't distributed
3585 # by default so it isn't actually very important.
3586 foreach my $npfx ('', 'notrans_')
3587 {
3588 foreach my $pfx ('', 'dist_', 'nodist_')
3589 {
3590 # Add more sections as needed.
3591 foreach my $section ('0'..'9', 'n', 'l')
3592 {
3593 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3594 if (var ($varname))
3595 {
3596 $sections{$section} = 1;
3597 $varname = '$(' . $varname . ')';
3598 if ($npfx eq 'notrans_')
3599 {
3600 $notrans_sections{$section} = 1;
3601 $notrans_sect_vars{$varname} = 1;
3602 }
3603 else
3604 {
3605 $trans_sections{$section} = 1;
3606 $trans_sect_vars{$varname} = 1;
3607 }
3609 &push_dist_common ($varname)
3610 if $pfx eq 'dist_';
3611 }
3612 }
3614 my $varname = $npfx . $pfx . 'man_MANS';
3615 my $var = var ($varname);
3616 if ($var)
3617 {
3618 foreach ($var->value_as_list_recursive)
3619 {
3620 # A page like `foo.1c' goes into man1dir.
3621 if (/\.([0-9a-z])([a-z]*)$/)
3622 {
3623 $sections{$1} = 1;
3624 if ($npfx eq 'notrans_')
3625 {
3626 $notrans_sections{$1} = 1;
3627 }
3628 else
3629 {
3630 $trans_sections{$1} = 1;
3631 }
3632 }
3633 }
3635 $varname = '$(' . $varname . ')';
3636 if ($npfx eq 'notrans_')
3637 {
3638 $notrans_vars{$varname} = 1;
3639 }
3640 else
3641 {
3642 $trans_vars{$varname} = 1;
3643 }
3644 &push_dist_common ($varname)
3645 if $pfx eq 'dist_';
3646 }
3647 }
3648 }
3650 return unless %sections;
3652 my @unsorted_deps;
3654 # Build section independent variables.
3655 my $have_notrans = %notrans_vars;
3656 my @notrans_list = sort keys %notrans_vars;
3657 my $have_trans = %trans_vars;
3658 my @trans_list = sort keys %trans_vars;
3660 # Now for each section, generate an install and uninstall rule.
3661 # Sort sections so output is deterministic.
3662 foreach my $section (sort keys %sections)
3663 {
3664 # Build section dependent variables.
3665 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3666 my $trans_mans = $have_trans || exists $trans_sections{$section};
3667 my (%notrans_this_sect, %trans_this_sect);
3668 my $expr = 'man' . $section . '_MANS';
3669 foreach my $varname (keys %notrans_sect_vars)
3670 {
3671 if ($varname =~ /$expr/)
3672 {
3673 $notrans_this_sect{$varname} = 1;
3674 }
3675 }
3676 foreach my $varname (keys %trans_sect_vars)
3677 {
3678 if ($varname =~ /$expr/)
3679 {
3680 $trans_this_sect{$varname} = 1;
3681 }
3682 }
3683 my @notrans_sect_list = sort keys %notrans_this_sect;
3684 my @trans_sect_list = sort keys %trans_this_sect;
3685 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3686 keys %notrans_this_sect, keys %trans_this_sect);
3687 my @deps = sort @unsorted_deps;
3688 $output_rules .= &file_contents ('mans',
3689 new Automake::Location,
3690 SECTION => $section,
3691 DEPS => "@deps",
3692 NOTRANS_MANS => $notrans_mans,
3693 NOTRANS_SECT_LIST => "@notrans_sect_list",
3694 HAVE_NOTRANS => $have_notrans,
3695 NOTRANS_LIST => "@notrans_list",
3696 TRANS_MANS => $trans_mans,
3697 TRANS_SECT_LIST => "@trans_sect_list",
3698 HAVE_TRANS => $have_trans,
3699 TRANS_LIST => "@trans_list");
3700 }
3702 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3703 keys %notrans_sect_vars, keys %trans_sect_vars);
3704 my @mans = sort @unsorted_deps;
3705 $output_vars .= file_contents ('mans-vars',
3706 new Automake::Location,
3707 MANS => "@mans");
3709 push (@all, '$(MANS)')
3710 unless option 'no-installman';
3711 }
3713 # Handle DATA variables.
3714 sub handle_data
3715 {
3716 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3717 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3718 'sysconf', 'sharedstate', 'localstate',
3719 'pkgdata', 'lisp', 'noinst', 'check');
3720 }
3722 # Handle TAGS.
3723 sub handle_tags
3724 {
3725 my @tag_deps = ();
3726 my @ctag_deps = ();
3727 if (var ('SUBDIRS'))
3728 {
3729 $output_rules .= ("tags-recursive:\n"
3730 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3731 # Never fail here if a subdir fails; it
3732 # isn't important.
3733 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3734 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3735 . "\tdone\n");
3736 push (@tag_deps, 'tags-recursive');
3737 &depend ('.PHONY', 'tags-recursive');
3738 &depend ('.MAKE', 'tags-recursive');
3740 $output_rules .= ("ctags-recursive:\n"
3741 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3742 # Never fail here if a subdir fails; it
3743 # isn't important.
3744 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3745 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3746 . "\tdone\n");
3747 push (@ctag_deps, 'ctags-recursive');
3748 &depend ('.PHONY', 'ctags-recursive');
3749 &depend ('.MAKE', 'ctags-recursive');
3750 }
3752 if (&saw_sources_p (1)
3753 || var ('ETAGS_ARGS')
3754 || @tag_deps)
3755 {
3756 my @config;
3757 foreach my $spec (@config_headers)
3758 {
3759 my ($out, @ins) = split_config_file_spec ($spec);
3760 foreach my $in (@ins)
3761 {
3762 # If the config header source is in this directory,
3763 # require it.
3764 push @config, basename ($in)
3765 if $relative_dir eq dirname ($in);
3766 }
3767 }
3768 $output_rules .= &file_contents ('tags',
3769 new Automake::Location,
3770 CONFIG => "@config",
3771 TAGSDIRS => "@tag_deps",
3772 CTAGSDIRS => "@ctag_deps");
3774 set_seen 'TAGS_DEPENDENCIES';
3775 }
3776 elsif (reject_var ('TAGS_DEPENDENCIES',
3777 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3778 . "without\nsources or `ETAGS_ARGS'"))
3779 {
3780 }
3781 else
3782 {
3783 # Every Makefile must define some sort of TAGS rule.
3784 # Otherwise, it would be possible for a top-level "make TAGS"
3785 # to fail because some subdirectory failed.
3786 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3787 # Ditto ctags.
3788 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3789 }
3790 }
3792 # Handle multilib support.
3793 sub handle_multilib
3794 {
3795 if ($seen_multilib && $relative_dir eq '.')
3796 {
3797 $output_rules .= &file_contents ('multilib', new Automake::Location);
3798 push (@all, 'all-multi');
3799 }
3800 }
3803 # user_phony_rule ($NAME)
3804 # -----------------------
3805 # Return false if rule $NAME does not exist. Otherwise,
3806 # declare it as phony, complete its definition (in case it is
3807 # conditional), and return its Automake::Rule instance.
3808 sub user_phony_rule ($)
3809 {
3810 my ($name) = @_;
3811 my $rule = rule $name;
3812 if ($rule)
3813 {
3814 depend ('.PHONY', $name);
3815 # Define $NAME in all condition where it is not already defined,
3816 # so that it is always OK to depend on $NAME.
3817 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3818 {
3819 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3820 $c, INTERNAL);
3821 $output_rules .= $c->subst_string . "$name:\n";
3822 }
3823 }
3824 return $rule;
3825 }
3828 # $BOOLEAN
3829 # &for_dist_common ($A, $B)
3830 # -------------------------
3831 # Subroutine for &handle_dist: sort files to dist.
3832 #
3833 # We put README first because it then becomes easier to make a
3834 # Usenet-compliant shar file (in these, README must be first).
3835 #
3836 # FIXME: do more ordering of files here.
3837 sub for_dist_common
3838 {
3839 return 0
3840 if $a eq $b;
3841 return -1
3842 if $a eq 'README';
3843 return 1
3844 if $b eq 'README';
3845 return $a cmp $b;
3846 }
3848 # handle_dist
3849 # -----------
3850 # Handle 'dist' target.
3851 sub handle_dist ()
3852 {
3853 # Substitutions for distdir.am
3854 my %transform;
3856 # Define DIST_SUBDIRS. This must always be done, regardless of the
3857 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3858 my $subdirs = var ('SUBDIRS');
3859 if ($subdirs)
3860 {
3861 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3862 # to all possible directories, and use it. If DIST_SUBDIRS is
3863 # defined, just use it.
3865 # Note that we check DIST_SUBDIRS first on purpose, so that
3866 # we don't call has_conditional_contents for now reason.
3867 # (In the past one project used so many conditional subdirectories
3868 # that calling has_conditional_contents on SUBDIRS caused
3869 # automake to grow to 150Mb -- this should not happen with
3870 # the current implementation of has_conditional_contents,
3871 # but it's more efficient to avoid the call anyway.)
3872 if (var ('DIST_SUBDIRS'))
3873 {
3874 }
3875 elsif ($subdirs->has_conditional_contents)
3876 {
3877 define_pretty_variable
3878 ('DIST_SUBDIRS', TRUE, INTERNAL,
3879 uniq ($subdirs->value_as_list_recursive));
3880 }
3881 else
3882 {
3883 # We always define this because that is what `distclean'
3884 # wants.
3885 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3886 '$(SUBDIRS)');
3887 }
3888 }
3890 # The remaining definitions are only required when a dist target is used.
3891 return if option 'no-dist';
3893 # At least one of the archive formats must be enabled.
3894 if ($relative_dir eq '.')
3895 {
3896 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3897 $archive_defined ||=
3898 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzma xz);
3899 error (option 'no-dist-gzip',
3900 "no-dist-gzip specified but no dist-* specified, "
3901 . "at least one archive format must be enabled")
3902 unless $archive_defined;
3903 }
3905 # Look for common files that should be included in distribution.
3906 # If the aux dir is set, and it does not have a Makefile.am, then
3907 # we check for these files there as well.
3908 my $check_aux = 0;
3909 if ($relative_dir eq '.'
3910 && $config_aux_dir_set_in_configure_ac)
3911 {
3912 if (! &is_make_dir ($config_aux_dir))
3913 {
3914 $check_aux = 1;
3915 }
3916 }
3917 foreach my $cfile (@common_files)
3918 {
3919 if (dir_has_case_matching_file ($relative_dir, $cfile)
3920 # The file might be absent, but if it can be built it's ok.
3921 || rule $cfile)
3922 {
3923 &push_dist_common ($cfile);
3924 }
3926 # Don't use `elsif' here because a file might meaningfully
3927 # appear in both directories.
3928 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3929 {
3930 &push_dist_common ("$config_aux_dir/$cfile")
3931 }
3932 }
3934 # We might copy elements from $configure_dist_common to
3935 # %dist_common if we think we need to. If the file appears in our
3936 # directory, we would have discovered it already, so we don't
3937 # check that. But if the file is in a subdir without a Makefile,
3938 # we want to distribute it here if we are doing `.'. Ugly!
3939 if ($relative_dir eq '.')
3940 {
3941 foreach my $file (split (' ' , $configure_dist_common))
3942 {
3943 push_dist_common ($file)
3944 unless is_make_dir (dirname ($file));
3945 }
3946 }
3948 # Files to distributed. Don't use ->value_as_list_recursive
3949 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3950 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3951 @dist_common = uniq (sort for_dist_common (@dist_common));
3952 variable_delete 'DIST_COMMON';
3953 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3955 # Now that we've processed DIST_COMMON, disallow further attempts
3956 # to set it.
3957 $handle_dist_run = 1;
3959 # Scan EXTRA_DIST to see if we need to distribute anything from a
3960 # subdir. If so, add it to the list. I didn't want to do this
3961 # originally, but there were so many requests that I finally
3962 # relented.
3963 my $extra_dist = var ('EXTRA_DIST');
3965 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3966 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3968 # If the target `dist-hook' exists, make sure it is run. This
3969 # allows users to do random weird things to the distribution
3970 # before it is packaged up.
3971 push (@dist_targets, 'dist-hook')
3972 if user_phony_rule 'dist-hook';
3973 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3975 my $flm = option ('filename-length-max');
3976 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3978 $output_rules .= &file_contents ('distdir',
3979 new Automake::Location,
3980 %transform,
3981 FILENAME_FILTER => $filename_filter);
3982 }
3985 # check_directory ($NAME, $WHERE)
3986 # -------------------------------
3987 # Ensure $NAME is a directory, and that it uses a sane name.
3988 # Use $WHERE as a location in the diagnostic, if any.
3989 sub check_directory ($$)
3990 {
3991 my ($dir, $where) = @_;
3993 error $where, "required directory $relative_dir/$dir does not exist"
3994 unless -d "$relative_dir/$dir";
3996 # If an `obj/' directory exists, BSD make will enter it before
3997 # reading `Makefile'. Hence the `Makefile' in the current directory
3998 # will not be read.
3999 #
4000 # % cat Makefile
4001 # all:
4002 # echo Hello
4003 # % cat obj/Makefile
4004 # all:
4005 # echo World
4006 # % make # GNU make
4007 # echo Hello
4008 # Hello
4009 # % pmake # BSD make
4010 # echo World
4011 # World
4012 msg ('portability', $where,
4013 "naming a subdirectory `obj' causes troubles with BSD make")
4014 if $dir eq 'obj';
4016 # `aux' is probably the most important of the following forbidden name,
4017 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4018 msg ('portability', $where,
4019 "name `$dir' is reserved on W32 and DOS platforms")
4020 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4021 }
4023 # check_directories_in_var ($VARIABLE)
4024 # ------------------------------------
4025 # Recursively check all items in variables $VARIABLE as directories
4026 sub check_directories_in_var ($)
4027 {
4028 my ($var) = @_;
4029 $var->traverse_recursively
4030 (sub
4031 {
4032 my ($var, $val, $cond, $full_cond) = @_;
4033 check_directory ($val, $var->rdef ($cond)->location);
4034 return ();
4035 },
4036 undef,
4037 skip_ac_subst => 1);
4038 }
4040 # &handle_subdirs ()
4041 # ------------------
4042 # Handle subdirectories.
4043 sub handle_subdirs ()
4044 {
4045 my $subdirs = var ('SUBDIRS');
4046 return
4047 unless $subdirs;
4049 check_directories_in_var $subdirs;
4051 my $dsubdirs = var ('DIST_SUBDIRS');
4052 check_directories_in_var $dsubdirs
4053 if $dsubdirs;
4055 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4056 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4057 }
4060 # ($REGEN, @DEPENDENCIES)
4061 # &scan_aclocal_m4
4062 # ----------------
4063 # If aclocal.m4 creation is automated, return the list of its dependencies.
4064 sub scan_aclocal_m4 ()
4065 {
4066 my $regen_aclocal = 0;
4068 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4069 set_seen 'CONFIGURE_DEPENDENCIES';
4071 if (-f 'aclocal.m4')
4072 {
4073 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4075 my $aclocal = new Automake::XFile "< aclocal.m4";
4076 my $line = $aclocal->getline;
4077 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4078 }
4080 my @ac_deps = ();
4082 if (set_seen ('ACLOCAL_M4_SOURCES'))
4083 {
4084 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4085 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4086 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4087 . "It should be safe to simply remove it.");
4088 }
4090 # Note that it might be possible that aclocal.m4 doesn't exist but
4091 # should be auto-generated. This case probably isn't very
4092 # important.
4094 return ($regen_aclocal, @ac_deps);
4095 }
4098 # Helper function for substitute_ac_subst_variables.
4099 sub substitute_ac_subst_variables_worker($)
4100 {
4101 my ($token) = @_;
4102 return "\@$token\@" if var $token;
4103 return "\${$token\}";
4104 }
4106 # substitute_ac_subst_variables ($TEXT)
4107 # -------------------------------------
4108 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4109 # variable.
4110 sub substitute_ac_subst_variables ($)
4111 {
4112 my ($text) = @_;
4113 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4114 return $text;
4115 }
4117 # @DEPENDENCIES
4118 # &prepend_srcdir (@INPUTS)
4119 # -------------------------
4120 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4121 # if an input file has a directory part the same as the current
4122 # directory, then the directory part is simply replaced by $(srcdir).
4123 # But if the directory part is different, then $(top_srcdir) is
4124 # prepended.
4125 sub prepend_srcdir (@)
4126 {
4127 my (@inputs) = @_;
4128 my @newinputs;
4130 foreach my $single (@inputs)
4131 {
4132 if (dirname ($single) eq $relative_dir)
4133 {
4134 push (@newinputs, '$(srcdir)/' . basename ($single));
4135 }
4136 else
4137 {
4138 push (@newinputs, '$(top_srcdir)/' . $single);
4139 }
4140 }
4141 return @newinputs;
4142 }
4144 # @DEPENDENCIES
4145 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4146 # ---------------------------------------------------
4147 # Compute a list of dependencies appropriate for the rebuild
4148 # rule of
4149 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4150 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOS.
4151 sub rewrite_inputs_into_dependencies ($@)
4152 {
4153 my ($file, @inputs) = @_;
4154 my @res = ();
4156 for my $i (@inputs)
4157 {
4158 # We cannot create dependencies on shell variables.
4159 next if (substitute_ac_subst_variables $i) =~ /\$/;
4161 if (exists $ac_config_files_location{$i} && $i ne $file)
4162 {
4163 my $di = dirname $i;
4164 if ($di eq $relative_dir)
4165 {
4166 $i = basename $i;
4167 }
4168 # In the top-level Makefile we do not use $(top_builddir), because
4169 # we are already there, and since the targets are built without
4170 # a $(top_builddir), it helps BSD Make to match them with
4171 # dependencies.
4172 elsif ($relative_dir ne '.')
4173 {
4174 $i = '$(top_builddir)/' . $i;
4175 }
4176 }
4177 else
4178 {
4179 msg ('error', $ac_config_files_location{$file},
4180 "required file `$i' not found")
4181 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4182 ($i) = prepend_srcdir ($i);
4183 push_dist_common ($i);
4184 }
4185 push @res, $i;
4186 }
4187 return @res;
4188 }
4192 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4193 # ------------------------------------------------------------------
4194 # Handle remaking and configure stuff.
4195 # We need the name of the input file, to do proper remaking rules.
4196 sub handle_configure ($$$@)
4197 {
4198 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4200 prog_error 'empty @inputs'
4201 unless @inputs;
4203 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4204 $makefile_in);
4205 my $rel_makefile = basename $makefile;
4207 my $colon_infile = ':' . join (':', @inputs);
4208 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4209 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4210 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4211 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4212 @configure_deps, @aclocal_m4_deps,
4213 '$(top_srcdir)/' . $configure_ac);
4214 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4215 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4216 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4217 @configuredeps);
4219 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4220 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4222 $output_rules .= file_contents
4223 ('configure',
4224 new Automake::Location,
4225 MAKEFILE => $rel_makefile,
4226 'MAKEFILE-DEPS' => "@rewritten",
4227 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4228 'MAKEFILE-IN' => $rel_makefile_in,
4229 'MAKEFILE-IN-DEPS' => "@include_stack",
4230 'MAKEFILE-AM' => $rel_makefile_am,
4231 'AUTOMAKE-OPTIONS' => $automake_options,
4232 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4233 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4234 VERBOSE => verbose_flag ('GEN'));
4236 if ($relative_dir eq '.')
4237 {
4238 &push_dist_common ('acconfig.h')
4239 if -f 'acconfig.h';
4240 }
4242 # If we have a configure header, require it.
4243 my $hdr_index = 0;
4244 my @distclean_config;
4245 foreach my $spec (@config_headers)
4246 {
4247 $hdr_index += 1;
4248 # $CONFIG_H_PATH: config.h from top level.
4249 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4250 my $config_h_dir = dirname ($config_h_path);
4252 # If the header is in the current directory we want to build
4253 # the header here. Otherwise, if we're at the topmost
4254 # directory and the header's directory doesn't have a
4255 # Makefile, then we also want to build the header.
4256 if ($relative_dir eq $config_h_dir
4257 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4258 {
4259 my ($cn_sans_dir, $stamp_dir);
4260 if ($relative_dir eq $config_h_dir)
4261 {
4262 $cn_sans_dir = basename ($config_h_path);
4263 $stamp_dir = '';
4264 }
4265 else
4266 {
4267 $cn_sans_dir = $config_h_path;
4268 if ($config_h_dir eq '.')
4269 {
4270 $stamp_dir = '';
4271 }
4272 else
4273 {
4274 $stamp_dir = $config_h_dir . '/';
4275 }
4276 }
4278 # This will also distribute all inputs.
4279 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4281 # Cannot define rebuild rules for filenames with shell variables.
4282 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4284 # Header defined in this directory.
4285 my @files;
4286 if (-f $config_h_path . '.top')
4287 {
4288 push (@files, "$cn_sans_dir.top");
4289 }
4290 if (-f $config_h_path . '.bot')
4291 {
4292 push (@files, "$cn_sans_dir.bot");
4293 }
4295 push_dist_common (@files);
4297 # For now, acconfig.h can only appear in the top srcdir.
4298 if (-f 'acconfig.h')
4299 {
4300 push (@files, '$(top_srcdir)/acconfig.h');
4301 }
4303 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4304 $output_rules .=
4305 file_contents ('remake-hdr',
4306 new Automake::Location,
4307 FILES => "@files",
4308 CONFIG_H => $cn_sans_dir,
4309 CONFIG_HIN => $ins[0],
4310 CONFIG_H_DEPS => "@ins",
4311 CONFIG_H_PATH => $config_h_path,
4312 STAMP => "$stamp");
4314 push @distclean_config, $cn_sans_dir, $stamp;
4315 }
4316 }
4318 $output_rules .= file_contents ('clean-hdr',
4319 new Automake::Location,
4320 FILES => "@distclean_config")
4321 if @distclean_config;
4323 # Distribute and define mkinstalldirs only if it is already present
4324 # in the package, for backward compatibility (some people may still
4325 # use $(mkinstalldirs)).
4326 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4327 if (-f $mkidpath)
4328 {
4329 # Use require_file so that any existing script gets updated
4330 # by --force-missing.
4331 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4332 define_variable ('mkinstalldirs',
4333 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4334 }
4335 else
4336 {
4337 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4338 # at least one argument, and $(mkinstalldirs) used to work
4339 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4340 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4341 }
4343 reject_var ('CONFIG_HEADER',
4344 "`CONFIG_HEADER' is an anachronism; now determined "
4345 . "automatically\nfrom `$configure_ac'");
4347 my @config_h;
4348 foreach my $spec (@config_headers)
4349 {
4350 my ($out, @ins) = split_config_file_spec ($spec);
4351 # Generate CONFIG_HEADER define.
4352 if ($relative_dir eq dirname ($out))
4353 {
4354 push @config_h, basename ($out);
4355 }
4356 else
4357 {
4358 push @config_h, "\$(top_builddir)/$out";
4359 }
4360 }
4361 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4362 if @config_h;
4364 # Now look for other files in this directory which must be remade
4365 # by config.status, and generate rules for them.
4366 my @actual_other_files = ();
4367 # These get cleaned only in a VPATH build.
4368 my @actual_other_vpath_files = ();
4369 foreach my $lfile (@other_input_files)
4370 {
4371 my $file;
4372 my @inputs;
4373 if ($lfile =~ /^([^:]*):(.*)$/)
4374 {
4375 # This is the ":" syntax of AC_OUTPUT.
4376 $file = $1;
4377 @inputs = split (':', $2);
4378 }
4379 else
4380 {
4381 # Normal usage.
4382 $file = $lfile;
4383 @inputs = $file . '.in';
4384 }
4386 # Automake files should not be stored in here, but in %MAKE_LIST.
4387 prog_error ("$lfile in \@other_input_files\n"
4388 . "\@other_input_files = (@other_input_files)")
4389 if -f $file . '.am';
4391 my $local = basename ($file);
4393 # We skip files that aren't in this directory. However, if
4394 # the file's directory does not have a Makefile, and we are
4395 # currently doing `.', then we create a rule to rebuild the
4396 # file in the subdir.
4397 my $fd = dirname ($file);
4398 if ($fd ne $relative_dir)
4399 {
4400 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4401 {
4402 $local = $file;
4403 }
4404 else
4405 {
4406 next;
4407 }
4408 }
4410 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4412 # Cannot output rules for shell variables.
4413 next if (substitute_ac_subst_variables $local) =~ /\$/;
4415 my $condstr = '';
4416 my $cond = $ac_config_files_condition{$lfile};
4417 if (defined $cond)
4418 {
4419 $condstr = $cond->subst_string;
4420 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4421 $ac_config_files_location{$file});
4422 }
4423 $output_rules .= ($condstr . $local . ': '
4424 . '$(top_builddir)/config.status '
4425 . "@rewritten_inputs\n"
4426 . $condstr . "\t"
4427 . 'cd $(top_builddir) && '
4428 . '$(SHELL) ./config.status '
4429 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4430 . '$@'
4431 . "\n");
4432 push (@actual_other_files, $local);
4433 }
4435 # For links we should clean destinations and distribute sources.
4436 foreach my $spec (@config_links)
4437 {
4438 my ($link, $file) = split /:/, $spec;
4439 # Some people do AC_CONFIG_LINKS($computed). We only handle
4440 # the DEST:SRC form.
4441 next unless $file;
4442 my $where = $ac_config_files_location{$link};
4444 # Skip destinations that contain shell variables.
4445 if ((substitute_ac_subst_variables $link) !~ /\$/)
4446 {
4447 # We skip links that aren't in this directory. However, if
4448 # the link's directory does not have a Makefile, and we are
4449 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4450 # in `.'s Makefile.in.
4451 my $local = basename ($link);
4452 my $fd = dirname ($link);
4453 if ($fd ne $relative_dir)
4454 {
4455 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4456 {
4457 $local = $link;
4458 }
4459 else
4460 {
4461 $local = undef;
4462 }
4463 }
4464 if ($file ne $link)
4465 {
4466 push @actual_other_files, $local if $local;
4467 }
4468 else
4469 {
4470 push @actual_other_vpath_files, $local if $local;
4471 }
4472 }
4474 # Do not process sources that contain shell variables.
4475 if ((substitute_ac_subst_variables $file) !~ /\$/)
4476 {
4477 my $fd = dirname ($file);
4479 # We distribute files that are in this directory.
4480 # At the top-level (`.') we also distribute files whose
4481 # directory does not have a Makefile.
4482 if (($fd eq $relative_dir)
4483 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4484 {
4485 # The following will distribute $file as a side-effect when
4486 # it is appropriate (i.e., when $file is not already an output).
4487 # We do not need the result, just the side-effect.
4488 rewrite_inputs_into_dependencies ($link, $file);
4489 }
4490 }
4491 }
4493 # These files get removed by "make distclean".
4494 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4495 @actual_other_files);
4496 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4497 @actual_other_vpath_files);
4498 }
4500 # Handle C headers.
4501 sub handle_headers
4502 {
4503 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4504 'oldinclude', 'pkginclude',
4505 'noinst', 'check');
4506 foreach (@r)
4507 {
4508 next unless $_->[1] =~ /\..*$/;
4509 &saw_extension ($&);
4510 }
4511 }
4513 sub handle_gettext
4514 {
4515 return if ! $seen_gettext || $relative_dir ne '.';
4517 my $subdirs = var 'SUBDIRS';
4519 if (! $subdirs)
4520 {
4521 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4522 return;
4523 }
4525 # Perform some sanity checks to help users get the right setup.
4526 # We disable these tests when po/ doesn't exist in order not to disallow
4527 # unusual gettext setups.
4528 #
4529 # Bruno Haible:
4530 # | The idea is:
4531 # |
4532 # | 1) If a package doesn't have a directory po/ at top level, it
4533 # | will likely have multiple po/ directories in subpackages.
4534 # |
4535 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4536 # | is used without 'external'. It is also useful to warn for the
4537 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4538 # | warnings apply only to the usual layout of packages, therefore
4539 # | they should both be disabled if no po/ directory is found at
4540 # | top level.
4542 if (-d 'po')
4543 {
4544 my @subdirs = $subdirs->value_as_list_recursive;
4546 msg_var ('syntax', $subdirs,
4547 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4548 if ! grep ($_ eq 'po', @subdirs);
4550 # intl/ is not required when AM_GNU_GETTEXT is called with the
4551 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4552 msg_var ('syntax', $subdirs,
4553 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4554 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4555 && ! grep ($_ eq 'intl', @subdirs));
4557 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4558 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4559 msg_var ('syntax', $subdirs,
4560 "`intl' should not be in SUBDIRS when "
4561 . "AM_GNU_GETTEXT([external]) is used")
4562 if ($seen_gettext_external && ! $seen_gettext_intl
4563 && grep ($_ eq 'intl', @subdirs));
4564 }
4566 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4567 }
4569 # Handle footer elements.
4570 sub handle_footer
4571 {
4572 reject_rule ('.SUFFIXES',
4573 "use variable `SUFFIXES', not target `.SUFFIXES'");
4575 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4576 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4577 # anything else, by sticking it right after the default: target.
4578 $output_header .= ".SUFFIXES:\n";
4579 my $suffixes = var 'SUFFIXES';
4580 my @suffixes = Automake::Rule::suffixes;
4581 if (@suffixes || $suffixes)
4582 {
4583 # Make sure SUFFIXES has unique elements. Sort them to ensure
4584 # the output remains consistent. However, $(SUFFIXES) is
4585 # always at the start of the list, unsorted. This is done
4586 # because make will choose rules depending on the ordering of
4587 # suffixes, and this lets the user have some control. Push
4588 # actual suffixes, and not $(SUFFIXES). Some versions of make
4589 # do not like variable substitutions on the .SUFFIXES line.
4590 my @user_suffixes = ($suffixes
4591 ? $suffixes->value_as_list_recursive : ());
4593 my %suffixes = map { $_ => 1 } @suffixes;
4594 delete @suffixes{@user_suffixes};
4596 $output_header .= (".SUFFIXES: "
4597 . join (' ', @user_suffixes, sort keys %suffixes)
4598 . "\n");
4599 }
4601 $output_trailer .= file_contents ('footer', new Automake::Location);
4602 }
4605 # Generate `make install' rules.
4606 sub handle_install ()
4607 {
4608 $output_rules .= &file_contents
4609 ('install',
4610 new Automake::Location,
4611 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4612 ? (" \$(BUILT_SOURCES)\n"
4613 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4614 : ''),
4615 'installdirs-local' => (user_phony_rule 'installdirs-local'
4616 ? ' installdirs-local' : ''),
4617 am__installdirs => variable_value ('am__installdirs') || '');
4618 }
4621 # Deal with all and all-am.
4622 sub handle_all ($)
4623 {
4624 my ($makefile) = @_;
4626 # Output `all-am'.
4628 # Put this at the beginning for the sake of non-GNU makes. This
4629 # is still wrong if these makes can run parallel jobs. But it is
4630 # right enough.
4631 unshift (@all, basename ($makefile));
4633 foreach my $spec (@config_headers)
4634 {
4635 my ($out, @ins) = split_config_file_spec ($spec);
4636 push (@all, basename ($out))
4637 if dirname ($out) eq $relative_dir;
4638 }
4640 # Install `all' hooks.
4641 push (@all, "all-local")
4642 if user_phony_rule "all-local";
4644 &pretty_print_rule ("all-am:", "\t\t", @all);
4645 &depend ('.PHONY', 'all-am', 'all');
4648 # Output `all'.
4650 my @local_headers = ();
4651 push @local_headers, '$(BUILT_SOURCES)'
4652 if var ('BUILT_SOURCES');
4653 foreach my $spec (@config_headers)
4654 {
4655 my ($out, @ins) = split_config_file_spec ($spec);
4656 push @local_headers, basename ($out)
4657 if dirname ($out) eq $relative_dir;
4658 }
4660 if (@local_headers)
4661 {
4662 # We need to make sure config.h is built before we recurse.
4663 # We also want to make sure that built sources are built
4664 # before any ordinary `all' targets are run. We can't do this
4665 # by changing the order of dependencies to the "all" because
4666 # that breaks when using parallel makes. Instead we handle
4667 # things explicitly.
4668 $output_all .= ("all: @local_headers"
4669 . "\n\t"
4670 . '$(MAKE) $(AM_MAKEFLAGS) '
4671 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4672 . "\n\n");
4673 depend ('.MAKE', 'all');
4674 }
4675 else
4676 {
4677 $output_all .= "all: " . (var ('SUBDIRS')
4678 ? 'all-recursive' : 'all-am') . "\n\n";
4679 }
4680 }
4683 # &do_check_merge_target ()
4684 # -------------------------
4685 # Handle check merge target specially.
4686 sub do_check_merge_target ()
4687 {
4688 # Include user-defined local form of target.
4689 push @check_tests, 'check-local'
4690 if user_phony_rule 'check-local';
4692 # In --cygnus mode, check doesn't depend on all.
4693 if (option 'cygnus')
4694 {
4695 # Just run the local check rules.
4696 pretty_print_rule ('check-am:', "\t\t", @check);
4697 }
4698 else
4699 {
4700 # The check target must depend on the local equivalent of
4701 # `all', to ensure all the primary targets are built. Then it
4702 # must build the local check rules.
4703 $output_rules .= "check-am: all-am\n";
4704 if (@check)
4705 {
4706 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4707 @check);
4708 depend ('.MAKE', 'check-am');
4709 }
4710 }
4711 if (@check_tests)
4712 {
4713 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4714 @check_tests);
4715 depend ('.MAKE', 'check-am');
4716 }
4718 depend '.PHONY', 'check', 'check-am';
4719 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4720 $output_rules .= ("check: "
4721 . (var ('BUILT_SOURCES')
4722 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4723 : '')
4724 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4725 . "\n");
4726 depend ('.MAKE', 'check')
4727 if var ('BUILT_SOURCES');
4728 }
4730 # handle_clean ($MAKEFILE)
4731 # ------------------------
4732 # Handle all 'clean' targets.
4733 sub handle_clean ($)
4734 {
4735 my ($makefile) = @_;
4737 # Clean the files listed in user variables if they exist.
4738 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4739 if var ('MOSTLYCLEANFILES');
4740 $clean_files{'$(CLEANFILES)'} = CLEAN
4741 if var ('CLEANFILES');
4742 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4743 if var ('DISTCLEANFILES');
4744 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4745 if var ('MAINTAINERCLEANFILES');
4747 # Built sources are automatically removed by maintainer-clean.
4748 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4749 if var ('BUILT_SOURCES');
4751 # Compute a list of "rm"s to run for each target.
4752 my %rms = (MOSTLY_CLEAN, [],
4753 CLEAN, [],
4754 DIST_CLEAN, [],
4755 MAINTAINER_CLEAN, []);
4757 foreach my $file (keys %clean_files)
4758 {
4759 my $when = $clean_files{$file};
4760 prog_error 'invalid entry in %clean_files'
4761 unless exists $rms{$when};
4763 my $rm = "rm -f $file";
4764 # If file is a variable, make sure when don't call `rm -f' without args.
4765 $rm ="test -z \"$file\" || $rm"
4766 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4768 push @{$rms{$when}}, "\t-$rm\n";
4769 }
4771 $output_rules .= &file_contents
4772 ('clean',
4773 new Automake::Location,
4774 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4775 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4776 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4777 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4778 MAKEFILE => basename $makefile,
4779 );
4780 }
4783 # &target_cmp ($A, $B)
4784 # --------------------
4785 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4786 # other `.TARGETS' be last.
4787 sub target_cmp
4788 {
4789 return 0 if $a eq $b;
4791 my $a1 = substr ($a, 0, 1);
4792 my $b1 = substr ($b, 0, 1);
4793 if ($a1 ne $b1)
4794 {
4795 return -1 if $b1 eq '.';
4796 return 1 if $a1 eq '.';
4797 }
4798 return $a cmp $b;
4799 }
4802 # &handle_factored_dependencies ()
4803 # --------------------------------
4804 # Handle everything related to gathered targets.
4805 sub handle_factored_dependencies
4806 {
4807 # Reject bad hooks.
4808 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4809 'uninstall-exec-local', 'uninstall-exec-hook',
4810 'uninstall-dvi-local',
4811 'uninstall-html-local',
4812 'uninstall-info-local',
4813 'uninstall-pdf-local',
4814 'uninstall-ps-local')
4815 {
4816 my $x = $utarg;
4817 $x =~ s/-.*-/-/;
4818 reject_rule ($utarg, "use `$x', not `$utarg'");
4819 }
4821 reject_rule ('install-local',
4822 "use `install-data-local' or `install-exec-local', "
4823 . "not `install-local'");
4825 reject_rule ('install-hook',
4826 "use `install-data-hook' or `install-exec-hook', "
4827 . "not `install-hook'");
4829 # Install the -local hooks.
4830 foreach (keys %dependencies)
4831 {
4832 # Hooks are installed on the -am targets.
4833 s/-am$// or next;
4834 depend ("$_-am", "$_-local")
4835 if user_phony_rule "$_-local";
4836 }
4838 # Install the -hook hooks.
4839 # FIXME: Why not be as liberal as we are with -local hooks?
4840 foreach ('install-exec', 'install-data', 'uninstall')
4841 {
4842 if (user_phony_rule "$_-hook")
4843 {
4844 depend ('.MAKE', "$_-am");
4845 register_action("$_-am",
4846 ("\t\@\$(NORMAL_INSTALL)\n"
4847 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4848 }
4849 }
4851 # All the required targets are phony.
4852 depend ('.PHONY', keys %required_targets);
4854 # Actually output gathered targets.
4855 foreach (sort target_cmp keys %dependencies)
4856 {
4857 # If there is nothing about this guy, skip it.
4858 next
4859 unless (@{$dependencies{$_}}
4860 || $actions{$_}
4861 || $required_targets{$_});
4863 # Define gathered targets in undefined conditions.
4864 # FIXME: Right now we must handle .PHONY as an exception,
4865 # because people write things like
4866 # .PHONY: myphonytarget
4867 # to append dependencies. This would not work if Automake
4868 # refrained from defining its own .PHONY target as it does
4869 # with other overridden targets.
4870 # Likewise for `.MAKE'.
4871 my @undefined_conds = (TRUE,);
4872 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4873 {
4874 @undefined_conds =
4875 Automake::Rule::define ($_, 'internal',
4876 RULE_AUTOMAKE, TRUE, INTERNAL);
4877 }
4878 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4879 foreach my $cond (@undefined_conds)
4880 {
4881 my $condstr = $cond->subst_string;
4882 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4883 $output_rules .= $actions{$_} if defined $actions{$_};
4884 $output_rules .= "\n";
4885 }
4886 }
4887 }
4890 # &handle_tests_dejagnu ()
4891 # ------------------------
4892 sub handle_tests_dejagnu
4893 {
4894 push (@check_tests, 'check-DEJAGNU');
4895 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4896 }
4899 # Handle TESTS variable and other checks.
4900 sub handle_tests
4901 {
4902 if (option 'dejagnu')
4903 {
4904 &handle_tests_dejagnu;
4905 }
4906 else
4907 {
4908 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4909 {
4910 reject_var ($c, "`$c' defined but `dejagnu' not in "
4911 . "`AUTOMAKE_OPTIONS'");
4912 }
4913 }
4915 if (var ('TESTS'))
4916 {
4917 push (@check_tests, 'check-TESTS');
4918 $output_rules .= &file_contents ('check', new Automake::Location,
4919 COLOR => !! option 'color-tests',
4920 PARALLEL_TESTS => !! option 'parallel-tests');
4922 # Tests that are known programs should have $(EXEEXT) appended.
4923 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4924 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4925 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4926 if (var ('XFAIL_TESTS'));
4928 if (option 'parallel-tests')
4929 {
4930 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4931 define_variable ('TEST_SUITE_HTML', '$(TEST_SUITE_LOG:.log=.html)', INTERNAL);
4932 my $suff = '.test';
4933 my $at_exeext = '';
4934 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4935 if ($handle_exeext)
4936 {
4937 $at_exeext = subst ('EXEEXT');
4938 $suff = $at_exeext . ' ' . $suff;
4939 }
4940 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4941 # FIXME: this mishandles conditions.
4942 my @test_suffixes = (var 'TEST_EXTENSIONS')->value_as_list_recursive;
4943 if ($handle_exeext)
4944 {
4945 unshift (@test_suffixes, $at_exeext)
4946 unless $test_suffixes[0] eq $at_exeext;
4947 }
4948 unshift (@test_suffixes, '');
4950 transform_variable_recursively
4951 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4952 sub {
4953 my ($subvar, $val, $cond, $full_cond) = @_;
4954 my $obj = $val;
4955 return $obj
4956 if $val =~ /^\@.*\@$/;
4957 $obj =~ s/\$\(EXEEXT\)$//o;
4959 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4960 {
4961 msg ('error', $subvar->rdef ($cond)->location,
4962 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
4963 }
4965 foreach my $test_suffix (@test_suffixes)
4966 {
4967 next
4968 if $test_suffix eq $at_exeext || $test_suffix eq '';
4969 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4970 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4971 }
4972 $obj .= '.log';
4973 my $compile = 'LOG_COMPILE';
4974 define_variable ($compile,
4975 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
4976 $output_rules .= file_contents ('check2', new Automake::Location,
4977 GENERIC => 0,
4978 OBJ => $obj,
4979 SOURCE => $val,
4980 COMPILE =>'$(' . $compile . ')',
4981 EXT => '',
4982 am__EXEEXT => 'FALSE');
4983 return $obj;
4984 });
4986 my $nhelper=1;
4987 my $prev = 'TESTS';
4988 my $post = '';
4989 my $last_suffix = $test_suffixes[$#test_suffixes];
4990 my $cur = '';
4991 foreach my $test_suffix (@test_suffixes)
4992 {
4993 if ($test_suffix eq $last_suffix)
4994 {
4995 $cur = 'TEST_LOGS';
4996 }
4997 else
4998 {
4999 $cur = 'am__test_logs' . $nhelper;
5000 }
5001 define_variable ($cur,
5002 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5003 $post = '.log';
5004 $prev = $cur;
5005 $nhelper++;
5006 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5007 {
5008 (my $ext = $test_suffix) =~ s/^\.//;
5009 $ext = uc $ext;
5010 my $compile = $ext . '_LOG_COMPILE';
5011 define_variable ($compile,
5012 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5013 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5014 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5015 $output_rules .= file_contents ('check2', new Automake::Location,
5016 GENERIC => 1,
5017 OBJ => '',
5018 SOURCE => '$<',
5019 COMPILE => '$(' . $compile . ')',
5020 EXT => $test_suffix,
5021 am__EXEEXT => $am_exeext);
5022 }
5023 }
5025 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5027 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5028 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5029 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5030 $clean_files{'$(TEST_SUITE_HTML)'} = MOSTLY_CLEAN;
5031 }
5032 }
5033 }
5035 # Handle Emacs Lisp.
5036 sub handle_emacs_lisp
5037 {
5038 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5039 'lisp', 'noinst');
5041 return if ! @elfiles;
5043 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5044 map { $_->[1] } @elfiles);
5045 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5046 '$(am__ELFILES:.el=.elc)');
5047 # This one can be overridden by users.
5048 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5050 push @all, '$(ELCFILES)';
5052 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5053 'EMACS', 'lispdir');
5054 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5055 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5056 }
5058 # Handle Python
5059 sub handle_python
5060 {
5061 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5062 'noinst');
5063 return if ! @pyfiles;
5065 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5066 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5067 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5068 }
5070 # Handle Java.
5071 sub handle_java
5072 {
5073 my @sourcelist = &am_install_var ('-candist',
5074 'java', 'JAVA',
5075 'java', 'noinst', 'check');
5076 return if ! @sourcelist;
5078 my @prefix = am_primary_prefixes ('JAVA', 1,
5079 'java', 'noinst', 'check');
5081 my $dir;
5082 foreach my $curs (@prefix)
5083 {
5084 next
5085 if $curs eq 'EXTRA';
5087 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5088 if defined $dir;
5089 $dir = $curs;
5090 }
5093 push (@all, 'class' . $dir . '.stamp');
5094 }
5097 # Handle some of the minor options.
5098 sub handle_minor_options
5099 {
5100 if (option 'readme-alpha')
5101 {
5102 if ($relative_dir eq '.')
5103 {
5104 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5105 {
5106 msg ('error-gnits', $package_version_location,
5107 "version `$package_version' doesn't follow " .
5108 "Gnits standards");
5109 }
5110 if (defined $1 && -f 'README-alpha')
5111 {
5112 # This means we have an alpha release. See
5113 # GNITS_VERSION_PATTERN for details.
5114 push_dist_common ('README-alpha');
5115 }
5116 }
5117 }
5118 }
5120 ################################################################
5122 # ($OUTPUT, @INPUTS)
5123 # &split_config_file_spec ($SPEC)
5124 # -------------------------------
5125 # Decode the Autoconf syntax for config files (files, headers, links
5126 # etc.).
5127 sub split_config_file_spec ($)
5128 {
5129 my ($spec) = @_;
5130 my ($output, @inputs) = split (/:/, $spec);
5132 push @inputs, "$output.in"
5133 unless @inputs;
5135 return ($output, @inputs);
5136 }
5138 # $input
5139 # locate_am (@POSSIBLE_SOURCES)
5140 # -----------------------------
5141 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5142 # This functions returns the first *.in file for which a *.am exists.
5143 # It returns undef otherwise.
5144 sub locate_am (@)
5145 {
5146 my (@rest) = @_;
5147 my $input;
5148 foreach my $file (@rest)
5149 {
5150 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5151 {
5152 $input = $file;
5153 last;
5154 }
5155 }
5156 return $input;
5157 }
5159 my %make_list;
5161 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5162 # ---------------------------------------------------
5163 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5164 # (or AC_OUTPUT).
5165 sub scan_autoconf_config_files ($$)
5166 {
5167 my ($where, $config_files) = @_;
5169 # Look at potential Makefile.am's.
5170 foreach (split ' ', $config_files)
5171 {
5172 # Must skip empty string for Perl 4.
5173 next if $_ eq "\\" || $_ eq '';
5175 # Handle $local:$input syntax.
5176 my ($local, @rest) = split (/:/);
5177 @rest = ("$local.in",) unless @rest;
5178 msg ('portability', $where,
5179 "Omit leading `./' from config file names such as `$local',"
5180 . "\nas not all make implementations treat `file' and `./file' equally.")
5181 if ($local =~ /^\.\//);
5182 my $input = locate_am @rest;
5183 if ($input)
5184 {
5185 # We have a file that automake should generate.
5186 $make_list{$input} = join (':', ($local, @rest));
5187 }
5188 else
5189 {
5190 # We have a file that automake should cause to be
5191 # rebuilt, but shouldn't generate itself.
5192 push (@other_input_files, $_);
5193 }
5194 $ac_config_files_location{$local} = $where;
5195 $ac_config_files_condition{$local} =
5196 new Automake::Condition (@cond_stack)
5197 if (@cond_stack);
5198 }
5199 }
5202 # &scan_autoconf_traces ($FILENAME)
5203 # ---------------------------------
5204 sub scan_autoconf_traces ($)
5205 {
5206 my ($filename) = @_;
5208 # Macros to trace, with their minimal number of arguments.
5209 #
5210 # IMPORTANT: If you add a macro here, you should also add this macro
5211 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5212 my %traced = (
5213 AC_CANONICAL_BUILD => 0,
5214 AC_CANONICAL_HOST => 0,
5215 AC_CANONICAL_TARGET => 0,
5216 AC_CONFIG_AUX_DIR => 1,
5217 AC_CONFIG_FILES => 1,
5218 AC_CONFIG_HEADERS => 1,
5219 AC_CONFIG_LIBOBJ_DIR => 1,
5220 AC_CONFIG_LINKS => 1,
5221 AC_FC_SRCEXT => 1,
5222 AC_INIT => 0,
5223 AC_LIBSOURCE => 1,
5224 AC_REQUIRE_AUX_FILE => 1,
5225 AC_SUBST_TRACE => 1,
5226 AM_AUTOMAKE_VERSION => 1,
5227 AM_CONDITIONAL => 2,
5228 AM_ENABLE_MULTILIB => 0,
5229 AM_GNU_GETTEXT => 0,
5230 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5231 AM_INIT_AUTOMAKE => 0,
5232 AM_MAINTAINER_MODE => 0,
5233 AM_PROG_CC_C_O => 0,
5234 AM_SILENT_RULES => 0,
5235 _AM_SUBST_NOTMAKE => 1,
5236 _AM_COND_IF => 1,
5237 _AM_COND_ELSE => 1,
5238 _AM_COND_ENDIF => 1,
5239 LT_SUPPORTED_TAG => 1,
5240 _LT_AC_TAGCONFIG => 0,
5241 m4_include => 1,
5242 m4_sinclude => 1,
5243 sinclude => 1,
5244 );
5246 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
5248 # Use a separator unlikely to be used, not `:', the default, which
5249 # has a precise meaning for AC_CONFIG_FILES and so on.
5250 $traces .= join (' ',
5251 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5252 (keys %traced));
5254 my $tracefh = new Automake::XFile ("$traces $filename |");
5255 verb "reading $traces";
5257 @cond_stack = ();
5258 my $where;
5260 while ($_ = $tracefh->getline)
5261 {
5262 chomp;
5263 my ($here, $depth, @args) = split (/::/);
5264 $where = new Automake::Location $here;
5265 my $macro = $args[0];
5267 prog_error ("unrequested trace `$macro'")
5268 unless exists $traced{$macro};
5270 # Skip and diagnose malformed calls.
5271 if ($#args < $traced{$macro})
5272 {
5273 msg ('syntax', $where, "not enough arguments for $macro");
5274 next;
5275 }
5277 # Alphabetical ordering please.
5278 if ($macro eq 'AC_CANONICAL_BUILD')
5279 {
5280 if ($seen_canonical <= AC_CANONICAL_BUILD)
5281 {
5282 $seen_canonical = AC_CANONICAL_BUILD;
5283 $canonical_location = $where;
5284 }
5285 }
5286 elsif ($macro eq 'AC_CANONICAL_HOST')
5287 {
5288 if ($seen_canonical <= AC_CANONICAL_HOST)
5289 {
5290 $seen_canonical = AC_CANONICAL_HOST;
5291 $canonical_location = $where;
5292 }
5293 }
5294 elsif ($macro eq 'AC_CANONICAL_TARGET')
5295 {
5296 $seen_canonical = AC_CANONICAL_TARGET;
5297 $canonical_location = $where;
5298 }
5299 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5300 {
5301 if ($seen_init_automake)
5302 {
5303 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5304 . "AM_INIT_AUTOMAKE...", partial => 1);
5305 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5306 }
5307 $config_aux_dir = $args[1];
5308 $config_aux_dir_set_in_configure_ac = 1;
5309 $relative_dir = '.';
5310 check_directory ($config_aux_dir, $where);
5311 }
5312 elsif ($macro eq 'AC_CONFIG_FILES')
5313 {
5314 # Look at potential Makefile.am's.
5315 scan_autoconf_config_files ($where, $args[1]);
5316 }
5317 elsif ($macro eq 'AC_CONFIG_HEADERS')
5318 {
5319 foreach my $spec (split (' ', $args[1]))
5320 {
5321 my ($dest, @src) = split (':', $spec);
5322 $ac_config_files_location{$dest} = $where;
5323 push @config_headers, $spec;
5324 }
5325 }
5326 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5327 {
5328 $config_libobj_dir = $args[1];
5329 $relative_dir = '.';
5330 check_directory ($config_libobj_dir, $where);
5331 }
5332 elsif ($macro eq 'AC_CONFIG_LINKS')
5333 {
5334 foreach my $spec (split (' ', $args[1]))
5335 {
5336 my ($dest, $src) = split (':', $spec);
5337 $ac_config_files_location{$dest} = $where;
5338 push @config_links, $spec;
5339 }
5340 }
5341 elsif ($macro eq 'AC_FC_SRCEXT')
5342 {
5343 my $suffix = $args[1];
5344 # These flags are used as %SOURCEFLAG% in depend2.am,
5345 # where the trailing space is important.
5346 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5347 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5348 }
5349 elsif ($macro eq 'AC_INIT')
5350 {
5351 if (defined $args[2])
5352 {
5353 $package_version = $args[2];
5354 $package_version_location = $where;
5355 }
5356 }
5357 elsif ($macro eq 'AC_LIBSOURCE')
5358 {
5359 $libsources{$args[1]} = $here;
5360 }
5361 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5362 {
5363 # Only remember the first time a file is required.
5364 $required_aux_file{$args[1]} = $where
5365 unless exists $required_aux_file{$args[1]};
5366 }
5367 elsif ($macro eq 'AC_SUBST_TRACE')
5368 {
5369 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5370 # AC_SUBST(5), then too bad.
5371 $configure_vars{$args[1]} = $where
5372 if $args[1] =~ /^\w+$/;
5373 }
5374 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5375 {
5376 error ($where,
5377 "version mismatch. This is Automake $VERSION,\n" .
5378 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5379 "comes from Automake $args[1]. You should recreate\n" .
5380 "aclocal.m4 with aclocal and run automake again.\n",
5381 # $? = 63 is used to indicate version mismatch to missing.
5382 exit_code => 63)
5383 if $VERSION ne $args[1];
5385 $seen_automake_version = 1;
5386 }
5387 elsif ($macro eq 'AM_CONDITIONAL')
5388 {
5389 $configure_cond{$args[1]} = $where;
5390 }
5391 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5392 {
5393 $seen_multilib = $where;
5394 }
5395 elsif ($macro eq 'AM_GNU_GETTEXT')
5396 {
5397 $seen_gettext = $where;
5398 $ac_gettext_location = $where;
5399 $seen_gettext_external = grep ($_ eq 'external', @args);
5400 }
5401 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5402 {
5403 $seen_gettext_intl = $where;
5404 }
5405 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5406 {
5407 $seen_init_automake = $where;
5408 if (defined $args[2])
5409 {
5410 $package_version = $args[2];
5411 $package_version_location = $where;
5412 }
5413 elsif (defined $args[1])
5414 {
5415 exit $exit_code
5416 if (process_global_option_list ($where,
5417 split (' ', $args[1])));
5418 }
5419 }
5420 elsif ($macro eq 'AM_MAINTAINER_MODE')
5421 {
5422 $seen_maint_mode = $where;
5423 }
5424 elsif ($macro eq 'AM_PROG_CC_C_O')
5425 {
5426 $seen_cc_c_o = $where;
5427 }
5428 elsif ($macro eq 'AM_SILENT_RULES')
5429 {
5430 set_global_option ('silent-rules', $where);
5431 }
5432 elsif ($macro eq '_AM_COND_IF')
5433 {
5434 cond_stack_if ('', $args[1], $where);
5435 error ($where, "missing m4 quoting, macro depth $depth")
5436 if ($depth != 1);
5437 }
5438 elsif ($macro eq '_AM_COND_ELSE')
5439 {
5440 cond_stack_else ('!', $args[1], $where);
5441 error ($where, "missing m4 quoting, macro depth $depth")
5442 if ($depth != 1);
5443 }
5444 elsif ($macro eq '_AM_COND_ENDIF')
5445 {
5446 cond_stack_endif (undef, undef, $where);
5447 error ($where, "missing m4 quoting, macro depth $depth")
5448 if ($depth != 1);
5449 }
5450 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5451 {
5452 $ignored_configure_vars{$args[1]} = $where;
5453 }
5454 elsif ($macro eq 'm4_include'
5455 || $macro eq 'm4_sinclude'
5456 || $macro eq 'sinclude')
5457 {
5458 # Skip missing `sinclude'd files.
5459 next if $macro ne 'm4_include' && ! -f $args[1];
5461 # Some modified versions of Autoconf don't use
5462 # frozen files. Consequently it's possible that we see all
5463 # m4_include's performed during Autoconf's startup.
5464 # Obviously we don't want to distribute Autoconf's files
5465 # so we skip absolute filenames here.
5466 push @configure_deps, '$(top_srcdir)/' . $args[1]
5467 unless $here =~ m,^(?:\w:)?[\\/],;
5468 # Keep track of the greatest timestamp.
5469 if (-e $args[1])
5470 {
5471 my $mtime = mtime $args[1];
5472 $configure_deps_greatest_timestamp = $mtime
5473 if $mtime > $configure_deps_greatest_timestamp;
5474 }
5475 }
5476 elsif ($macro eq 'LT_SUPPORTED_TAG')
5477 {
5478 $libtool_tags{$args[1]} = 1;
5479 $libtool_new_api = 1;
5480 }
5481 elsif ($macro eq '_LT_AC_TAGCONFIG')
5482 {
5483 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5484 # We use it to detect whether tags are supported. Our
5485 # preferred interface is LT_SUPPORTED_TAG, but it was
5486 # introduced in Libtool 1.6.
5487 if (0 == keys %libtool_tags)
5488 {
5489 # Hardcode the tags supported by Libtool 1.5.
5490 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5491 }
5492 }
5493 }
5495 error ($where, "condition stack not properly closed")
5496 if (@cond_stack);
5498 $tracefh->close;
5499 }
5502 # &scan_autoconf_files ()
5503 # -----------------------
5504 # Check whether we use `configure.ac' or `configure.in'.
5505 # Scan it (and possibly `aclocal.m4') for interesting things.
5506 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5507 sub scan_autoconf_files ()
5508 {
5509 # Reinitialize libsources here. This isn't really necessary,
5510 # since we currently assume there is only one configure.ac. But
5511 # that won't always be the case.
5512 %libsources = ();
5514 # Keep track of the youngest configure dependency.
5515 $configure_deps_greatest_timestamp = mtime $configure_ac;
5516 if (-e 'aclocal.m4')
5517 {
5518 my $mtime = mtime 'aclocal.m4';
5519 $configure_deps_greatest_timestamp = $mtime
5520 if $mtime > $configure_deps_greatest_timestamp;
5521 }
5523 scan_autoconf_traces ($configure_ac);
5525 @configure_input_files = sort keys %make_list;
5526 # Set input and output files if not specified by user.
5527 if (! @input_files)
5528 {
5529 @input_files = @configure_input_files;
5530 %output_files = %make_list;
5531 }
5534 if (! $seen_init_automake)
5535 {
5536 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5537 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5538 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5539 . "and that aclocal.m4 was recently regenerated "
5540 . "(using aclocal).");
5541 }
5542 else
5543 {
5544 if (! $seen_automake_version)
5545 {
5546 if (-f 'aclocal.m4')
5547 {
5548 error ($seen_init_automake,
5549 "your implementation of AM_INIT_AUTOMAKE comes from " .
5550 "an\nold Automake version. You should recreate " .
5551 "aclocal.m4\nwith aclocal and run automake again.\n",
5552 # $? = 63 is used to indicate version mismatch to missing.
5553 exit_code => 63);
5554 }
5555 else
5556 {
5557 error ($seen_init_automake,
5558 "no proper implementation of AM_INIT_AUTOMAKE was " .
5559 "found,\nprobably because aclocal.m4 is missing...\n" .
5560 "You should run aclocal to create this file, then\n" .
5561 "run automake again.\n");
5562 }
5563 }
5564 }
5566 locate_aux_dir ();
5568 # Reorder @input_files so that the Makefile that distributes aux
5569 # files is processed last. This is important because each directory
5570 # can require auxiliary scripts and we should wait until they have
5571 # been installed before distributing them.
5573 # The Makefile.in that distribute the aux files is the one in
5574 # $config_aux_dir or the top-level Makefile.
5575 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5576 my @new_input_files = ();
5577 while (@input_files)
5578 {
5579 my $in = pop @input_files;
5580 my @ins = split (/:/, $output_files{$in});
5581 if (dirname ($ins[0]) eq $auxdirdist)
5582 {
5583 push @new_input_files, $in;
5584 $automake_will_process_aux_dir = 1;
5585 }
5586 else
5587 {
5588 unshift @new_input_files, $in;
5589 }
5590 }
5591 @input_files = @new_input_files;
5593 # If neither the auxdir/Makefile nor the ./Makefile are generated
5594 # by Automake, we won't distribute the aux files anyway. Assume
5595 # the user know what (s)he does, and pretend we will distribute
5596 # them to disable the error in require_file_internal.
5597 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5599 # Look for some files we need. Always check for these. This
5600 # check must be done for every run, even those where we are only
5601 # looking at a subdir Makefile. We must set relative_dir for
5602 # maybe_push_required_file to work.
5603 # Sort the files for stable verbose output.
5604 $relative_dir = '.';
5605 foreach my $file (sort keys %required_aux_file)
5606 {
5607 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5608 }
5609 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5610 if -f $config_aux_dir . '/install.sh';
5612 # Preserve dist_common for later.
5613 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5615 }
5617 ################################################################
5619 # Set up for Cygnus mode.
5620 sub check_cygnus
5621 {
5622 my $cygnus = option 'cygnus';
5623 return unless $cygnus;
5625 set_strictness ('foreign');
5626 set_option ('no-installinfo', $cygnus);
5627 set_option ('no-dependencies', $cygnus);
5628 set_option ('no-dist', $cygnus);
5630 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5631 if !$seen_maint_mode;
5632 }
5634 # Do any extra checking for GNU standards.
5635 sub check_gnu_standards
5636 {
5637 if ($relative_dir eq '.')
5638 {
5639 # In top level (or only) directory.
5640 require_file ("$am_file.am", GNU,
5641 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5643 # Accept one of these three licenses; default to COPYING.
5644 # Make sure we do not overwrite an existing license.
5645 my $license;
5646 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5647 {
5648 if (-f $_)
5649 {
5650 $license = $_;
5651 last;
5652 }
5653 }
5654 require_file ("$am_file.am", GNU, 'COPYING')
5655 unless $license;
5656 }
5658 for my $opt ('no-installman', 'no-installinfo')
5659 {
5660 msg ('error-gnu', option $opt,
5661 "option `$opt' disallowed by GNU standards")
5662 if option $opt;
5663 }
5664 }
5666 # Do any extra checking for GNITS standards.
5667 sub check_gnits_standards
5668 {
5669 if ($relative_dir eq '.')
5670 {
5671 # In top level (or only) directory.
5672 require_file ("$am_file.am", GNITS, 'THANKS');
5673 }
5674 }
5676 ################################################################
5677 #
5678 # Functions to handle files of each language.
5680 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5681 # simple formula: Return value is LANG_SUBDIR if the resulting object
5682 # file should be in a subdir if the source file is, LANG_PROCESS if
5683 # file is to be dealt with, LANG_IGNORE otherwise.
5685 # Much of the actual processing is handled in
5686 # handle_single_transform. These functions exist so that
5687 # auxiliary information can be recorded for a later cleanup pass.
5688 # Note that the calls to these functions are computed, so don't bother
5689 # searching for their precise names in the source.
5691 # This is just a convenience function that can be used to determine
5692 # when a subdir object should be used.
5693 sub lang_sub_obj
5694 {
5695 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5696 }
5698 # Rewrite a single C source file.
5699 sub lang_c_rewrite
5700 {
5701 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5703 if (option 'ansi2knr' && $base =~ /_$/)
5704 {
5705 # FIXME: include line number in error.
5706 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5707 }
5709 my $r = LANG_PROCESS;
5710 if (option 'subdir-objects')
5711 {
5712 $r = LANG_SUBDIR;
5713 if ($directory && $directory ne '.')
5714 {
5715 $base = $directory . '/' . $base;
5717 # libtool is always able to put the object at the proper place,
5718 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5719 msg_var ('portability', $var,
5720 "compiling `$base.c' in subdir requires "
5721 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5722 uniq_scope => US_GLOBAL,
5723 uniq_part => 'AM_PROG_CC_C_O subdir')
5724 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5725 }
5727 # In this case we already have the directory information, so
5728 # don't add it again.
5729 $de_ansi_files{$base} = '';
5730 }
5731 else
5732 {
5733 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5734 ? ''
5735 : "$directory/");
5736 }
5738 if (! $seen_cc_c_o
5739 && $have_per_exec_flags
5740 && ! option 'subdir-objects'
5741 && $nonansi_obj ne '.lo')
5742 {
5743 msg_var ('portability',
5744 $var, "compiling `$base.c' with per-target flags requires "
5745 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5746 uniq_scope => US_GLOBAL,
5747 uniq_part => 'AM_PROG_CC_C_O per-target')
5748 }
5750 return $r;
5751 }
5753 # Rewrite a single C++ source file.
5754 sub lang_cxx_rewrite
5755 {
5756 return &lang_sub_obj;
5757 }
5759 # Rewrite a single header file.
5760 sub lang_header_rewrite
5761 {
5762 # Header files are simply ignored.
5763 return LANG_IGNORE;
5764 }
5766 # Rewrite a single Vala source file.
5767 sub lang_vala_rewrite
5768 {
5769 my ($directory, $base, $ext) = @_;
5771 (my $newext = $ext) =~ s/vala$/c/;
5772 return (LANG_SUBDIR, $newext);
5773 }
5775 # Rewrite a single yacc file.
5776 sub lang_yacc_rewrite
5777 {
5778 my ($directory, $base, $ext) = @_;
5780 my $r = &lang_sub_obj;
5781 (my $newext = $ext) =~ tr/y/c/;
5782 return ($r, $newext);
5783 }
5785 # Rewrite a single yacc++ file.
5786 sub lang_yaccxx_rewrite
5787 {
5788 my ($directory, $base, $ext) = @_;
5790 my $r = &lang_sub_obj;
5791 (my $newext = $ext) =~ tr/y/c/;
5792 return ($r, $newext);
5793 }
5795 # Rewrite a single lex file.
5796 sub lang_lex_rewrite
5797 {
5798 my ($directory, $base, $ext) = @_;
5800 my $r = &lang_sub_obj;
5801 (my $newext = $ext) =~ tr/l/c/;
5802 return ($r, $newext);
5803 }
5805 # Rewrite a single lex++ file.
5806 sub lang_lexxx_rewrite
5807 {
5808 my ($directory, $base, $ext) = @_;
5810 my $r = &lang_sub_obj;
5811 (my $newext = $ext) =~ tr/l/c/;
5812 return ($r, $newext);
5813 }
5815 # Rewrite a single assembly file.
5816 sub lang_asm_rewrite
5817 {
5818 return &lang_sub_obj;
5819 }
5821 # Rewrite a single preprocessed assembly file.
5822 sub lang_cppasm_rewrite
5823 {
5824 return &lang_sub_obj;
5825 }
5827 # Rewrite a single Fortran 77 file.
5828 sub lang_f77_rewrite
5829 {
5830 return &lang_sub_obj;
5831 }
5833 # Rewrite a single Fortran file.
5834 sub lang_fc_rewrite
5835 {
5836 return &lang_sub_obj;
5837 }
5839 # Rewrite a single preprocessed Fortran file.
5840 sub lang_ppfc_rewrite
5841 {
5842 return &lang_sub_obj;
5843 }
5845 # Rewrite a single preprocessed Fortran 77 file.
5846 sub lang_ppf77_rewrite
5847 {
5848 return &lang_sub_obj;
5849 }
5851 # Rewrite a single ratfor file.
5852 sub lang_ratfor_rewrite
5853 {
5854 return &lang_sub_obj;
5855 }
5857 # Rewrite a single Objective C file.
5858 sub lang_objc_rewrite
5859 {
5860 return &lang_sub_obj;
5861 }
5863 # Rewrite a single Unified Parallel C file.
5864 sub lang_upc_rewrite
5865 {
5866 return &lang_sub_obj;
5867 }
5869 # Rewrite a single Java file.
5870 sub lang_java_rewrite
5871 {
5872 return LANG_SUBDIR;
5873 }
5875 # The lang_X_finish functions are called after all source file
5876 # processing is done. Each should handle defining rules for the
5877 # language, etc. A finish function is only called if a source file of
5878 # the appropriate type has been seen.
5880 sub lang_c_finish
5881 {
5882 # Push all libobjs files onto de_ansi_files. We actually only
5883 # push files which exist in the current directory, and which are
5884 # genuine source files.
5885 foreach my $file (keys %libsources)
5886 {
5887 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5888 {
5889 $de_ansi_files{$1} = ''
5890 }
5891 }
5893 if (option 'ansi2knr' && keys %de_ansi_files)
5894 {
5895 # Make all _.c files depend on their corresponding .c files.
5896 my @objects;
5897 foreach my $base (sort keys %de_ansi_files)
5898 {
5899 # Each _.c file must depend on ansi2knr; otherwise it
5900 # might be used in a parallel build before it is built.
5901 # We need to support files in the srcdir and in the build
5902 # dir (because these files might be auto-generated. But
5903 # we can't use $< -- some makes only define $< during a
5904 # suffix rule.
5905 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5906 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5907 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5908 . '`if test -f $(srcdir)/' . $ansfile
5909 . '; then echo $(srcdir)/' . $ansfile
5910 . '; else echo ' . $ansfile . '; fi` '
5911 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5912 . '| $(ANSI2KNR) > $@'
5913 # If ansi2knr fails then we shouldn't
5914 # create the _.c file
5915 . " || rm -f \$\@\n");
5916 push (@objects, $base . '_.$(OBJEXT)');
5917 push (@objects, $base . '_.lo')
5918 if var ('LIBTOOL');
5920 # Explicitly clean the _.c files if they are in a
5921 # subdirectory. (In the current directory they get erased
5922 # by a `rm -f *_.c' rule.)
5923 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5924 if dirname ($base) ne '.';
5925 }
5927 # Make all _.o (and _.lo) files depend on ansi2knr.
5928 # Use a sneaky little hack to make it print nicely.
5929 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5930 }
5931 }
5933 sub lang_vala_finish_target ($$)
5934 {
5935 my ($self, $name) = @_;
5937 my $derived = canonicalize ($name);
5938 my $varname = $derived . '_SOURCES';
5939 my $var = var ($varname);
5941 if ($var)
5942 {
5943 foreach my $file ($var->value_as_list_recursive)
5944 {
5945 $output_rules .= "\$(srcdir)/$file: \$(srcdir)/${derived}_vala.stamp\n".
5946 "\t\@if test -f \$@; then :; else \\\n".
5947 "\t rm -f \$(srcdir)/${derived}_vala.stamp; \\\n".
5948 "\t \$(am__cd) \$(srcdir) && \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n".
5949 "\tfi\n"
5950 if $file =~ s/(.*)\.vala$/$1.c/;
5951 }
5952 }
5954 # Add rebuild rules for generated header and vapi files
5955 my $flags = var ($derived . '_VALAFLAGS');
5956 if ($flags)
5957 {
5958 my $lastflag = '';
5959 foreach my $flag ($flags->value_as_list_recursive)
5960 {
5961 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5962 '--vapi', '--internal-vapi', '--gir')))
5963 {
5964 my $headerfile = $flag;
5965 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n".
5966 "\t\@if test -f \$@; then :; else \\\n".
5967 "\t rm -f \$(srcdir)/${derived}_vala.stamp; \\\n".
5968 "\t \$(am__cd) \$(srcdir) && \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n".
5969 "\tfi\n";
5971 # valac is not used when building from dist tarballs
5972 # distribute the generated files
5973 push_dist_common ($headerfile);
5974 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5975 }
5976 $lastflag = $flag;
5977 }
5978 }
5980 my $compile = $self->compile;
5982 # Rewrite each occurrence of `AM_VALAFLAGS' in the compile
5983 # rule into `${derived}_VALAFLAGS' if it exists.
5984 my $val = "${derived}_VALAFLAGS";
5985 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5986 if set_seen ($val);
5988 # VALAFLAGS is a user variable (per GNU Standards),
5989 # it should not be overridden in the Makefile...
5990 check_user_variables ['VALAFLAGS'];
5992 my $dirname = dirname ($name);
5994 # Only generate C code, do not run C compiler
5995 $compile .= " -C";
5997 my $verbose = verbose_flag ('VALAC');
5998 my $silent = silent_flag ();
6000 $output_rules .=
6001 "${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
6002 "\t${verbose}${compile} \$(${derived}_SOURCES)\n".
6003 "\t${silent}touch \$@\n";
6005 push_dist_common ("${derived}_vala.stamp");
6007 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
6008 }
6010 # Add output rules to invoke valac and create stamp file as a witness
6011 # to handle multiple outputs. This function is called after all source
6012 # file processing is done.
6013 sub lang_vala_finish
6014 {
6015 my ($self) = @_;
6017 foreach my $prog (keys %known_programs)
6018 {
6019 lang_vala_finish_target ($self, $prog);
6020 }
6022 while (my ($name) = each %known_libraries)
6023 {
6024 lang_vala_finish_target ($self, $name);
6025 }
6026 }
6028 # The built .c files should be cleaned only on maintainer-clean
6029 # as the .c files are distributed. This function is called for each
6030 # .vala source file.
6031 sub lang_vala_target_hook
6032 {
6033 my ($self, $aggregate, $output, $input, %transform) = @_;
6035 $clean_files{$output} = MAINTAINER_CLEAN;
6036 }
6038 # This is a yacc helper which is called whenever we have decided to
6039 # compile a yacc file.
6040 sub lang_yacc_target_hook
6041 {
6042 my ($self, $aggregate, $output, $input, %transform) = @_;
6044 my $flag = $aggregate . "_YFLAGS";
6045 my $flagvar = var $flag;
6046 my $YFLAGSvar = var 'YFLAGS';
6047 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6048 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6049 {
6050 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6051 my $header = $output_base . '.h';
6053 # Found a `-d' that applies to the compilation of this file.
6054 # Add a dependency for the generated header file, and arrange
6055 # for that file to be included in the distribution.
6056 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6057 RULE_AUTOMAKE, TRUE,
6058 INTERNAL))
6059 {
6060 my $condstr = $cond->subst_string;
6061 $output_rules .=
6062 "$condstr${header}: $output\n"
6063 # Recover from removal of $header
6064 . "$condstr\t\@if test ! -f \$@; then \\\n"
6065 . "$condstr\t rm -f $output; \\\n"
6066 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
6067 . "$condstr\telse :; fi\n";
6068 }
6069 # Distribute the generated file, unless its .y source was
6070 # listed in a nodist_ variable. (&handle_source_transform
6071 # will set DIST_SOURCE.)
6072 &push_dist_common ($header)
6073 if $transform{'DIST_SOURCE'};
6075 # If the files are built in the build directory, then we want
6076 # to remove them with `make clean'. If they are in srcdir
6077 # they shouldn't be touched. However, we can't determine this
6078 # statically, and the GNU rules say that yacc/lex output files
6079 # should be removed by maintainer-clean. So that's what we
6080 # do.
6081 $clean_files{$header} = MAINTAINER_CLEAN;
6082 }
6083 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6084 # See the comment above for $HEADER.
6085 $clean_files{$output} = MAINTAINER_CLEAN;
6086 }
6088 # This is a lex helper which is called whenever we have decided to
6089 # compile a lex file.
6090 sub lang_lex_target_hook
6091 {
6092 my ($self, $aggregate, $output, $input) = @_;
6093 # If the files are built in the build directory, then we want to
6094 # remove them with `make clean'. If they are in srcdir they
6095 # shouldn't be touched. However, we can't determine this
6096 # statically, and the GNU rules say that yacc/lex output files
6097 # should be removed by maintainer-clean. So that's what we do.
6098 $clean_files{$output} = MAINTAINER_CLEAN;
6099 }
6101 # This is a helper for both lex and yacc.
6102 sub yacc_lex_finish_helper
6103 {
6104 return if defined $language_scratch{'lex-yacc-done'};
6105 $language_scratch{'lex-yacc-done'} = 1;
6107 # FIXME: for now, no line number.
6108 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6109 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6110 }
6112 sub lang_yacc_finish
6113 {
6114 return if defined $language_scratch{'yacc-done'};
6115 $language_scratch{'yacc-done'} = 1;
6117 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6119 yacc_lex_finish_helper;
6120 }
6123 sub lang_lex_finish
6124 {
6125 return if defined $language_scratch{'lex-done'};
6126 $language_scratch{'lex-done'} = 1;
6128 yacc_lex_finish_helper;
6129 }
6132 # Given a hash table of linker names, pick the name that has the most
6133 # precedence. This is lame, but something has to have global
6134 # knowledge in order to eliminate the conflict. Add more linkers as
6135 # required.
6136 sub resolve_linker
6137 {
6138 my (%linkers) = @_;
6140 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6141 {
6142 return $l if defined $linkers{$l};
6143 }
6144 return 'LINK';
6145 }
6147 # Called to indicate that an extension was used.
6148 sub saw_extension
6149 {
6150 my ($ext) = @_;
6151 if (! defined $extension_seen{$ext})
6152 {
6153 $extension_seen{$ext} = 1;
6154 }
6155 else
6156 {
6157 ++$extension_seen{$ext};
6158 }
6159 }
6161 # Return the number of files seen for a given language. Knows about
6162 # special cases we care about. FIXME: this is hideous. We need
6163 # something that involves real language objects. For instance yacc
6164 # and yaccxx could both derive from a common yacc class which would
6165 # know about the strange ylwrap requirement. (Or better yet we could
6166 # just not support legacy yacc!)
6167 sub count_files_for_language
6168 {
6169 my ($name) = @_;
6171 my @names;
6172 if ($name eq 'yacc' || $name eq 'yaccxx')
6173 {
6174 @names = ('yacc', 'yaccxx');
6175 }
6176 elsif ($name eq 'lex' || $name eq 'lexxx')
6177 {
6178 @names = ('lex', 'lexxx');
6179 }
6180 else
6181 {
6182 @names = ($name);
6183 }
6185 my $r = 0;
6186 foreach $name (@names)
6187 {
6188 my $lang = $languages{$name};
6189 foreach my $ext (@{$lang->extensions})
6190 {
6191 $r += $extension_seen{$ext}
6192 if defined $extension_seen{$ext};
6193 }
6194 }
6196 return $r
6197 }
6199 # Called to ask whether source files have been seen . If HEADERS is 1,
6200 # headers can be included.
6201 sub saw_sources_p
6202 {
6203 my ($headers) = @_;
6205 # count all the sources
6206 my $count = 0;
6207 foreach my $val (values %extension_seen)
6208 {
6209 $count += $val;
6210 }
6212 if (!$headers)
6213 {
6214 $count -= count_files_for_language ('header');
6215 }
6217 return $count > 0;
6218 }
6221 # register_language (%ATTRIBUTE)
6222 # ------------------------------
6223 # Register a single language.
6224 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6225 sub register_language (%)
6226 {
6227 my (%option) = @_;
6229 # Set the defaults.
6230 $option{'ansi'} = 0
6231 unless defined $option{'ansi'};
6232 $option{'autodep'} = 'no'
6233 unless defined $option{'autodep'};
6234 $option{'linker'} = ''
6235 unless defined $option{'linker'};
6236 $option{'flags'} = []
6237 unless defined $option{'flags'};
6238 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6239 unless defined $option{'output_extensions'};
6240 $option{'nodist_specific'} = 0
6241 unless defined $option{'nodist_specific'};
6243 my $lang = new Language (%option);
6245 # Fill indexes.
6246 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6247 $languages{$lang->name} = $lang;
6248 my $link = $lang->linker;
6249 if ($link)
6250 {
6251 if (exists $link_languages{$link})
6252 {
6253 prog_error ("`$link' has different definitions in "
6254 . $lang->name . " and " . $link_languages{$link}->name)
6255 if $lang->link ne $link_languages{$link}->link;
6256 }
6257 else
6258 {
6259 $link_languages{$link} = $lang;
6260 }
6261 }
6263 # Update the pattern of known extensions.
6264 accept_extensions (@{$lang->extensions});
6266 # Upate the $suffix_rule map.
6267 foreach my $suffix (@{$lang->extensions})
6268 {
6269 foreach my $dest (&{$lang->output_extensions} ($suffix))
6270 {
6271 register_suffix_rule (INTERNAL, $suffix, $dest);
6272 }
6273 }
6274 }
6276 # derive_suffix ($EXT, $OBJ)
6277 # --------------------------
6278 # This function is used to find a path from a user-specified suffix $EXT
6279 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6280 sub derive_suffix ($$)
6281 {
6282 my ($source_ext, $obj) = @_;
6284 while (! $extension_map{$source_ext}
6285 && $source_ext ne $obj
6286 && exists $suffix_rules->{$source_ext}
6287 && exists $suffix_rules->{$source_ext}{$obj})
6288 {
6289 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6290 }
6292 return $source_ext;
6293 }
6296 ################################################################
6298 # Pretty-print something and append to output_rules.
6299 sub pretty_print_rule
6300 {
6301 $output_rules .= &makefile_wrap (@_);
6302 }
6305 ################################################################
6308 ## -------------------------------- ##
6309 ## Handling the conditional stack. ##
6310 ## -------------------------------- ##
6313 # $STRING
6314 # make_conditional_string ($NEGATE, $COND)
6315 # ----------------------------------------
6316 sub make_conditional_string ($$)
6317 {
6318 my ($negate, $cond) = @_;
6319 $cond = "${cond}_TRUE"
6320 unless $cond =~ /^TRUE|FALSE$/;
6321 $cond = Automake::Condition::conditional_negate ($cond)
6322 if $negate;
6323 return $cond;
6324 }
6327 my %_am_macro_for_cond =
6328 (
6329 AMDEP => "one of the compiler tests\n"
6330 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6331 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6332 am__fastdepCC => 'AC_PROG_CC',
6333 am__fastdepCCAS => 'AM_PROG_AS',
6334 am__fastdepCXX => 'AC_PROG_CXX',
6335 am__fastdepGCJ => 'AM_PROG_GCJ',
6336 am__fastdepOBJC => 'AC_PROG_OBJC',
6337 am__fastdepUPC => 'AM_PROG_UPC'
6338 );
6340 # $COND
6341 # cond_stack_if ($NEGATE, $COND, $WHERE)
6342 # --------------------------------------
6343 sub cond_stack_if ($$$)
6344 {
6345 my ($negate, $cond, $where) = @_;
6347 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6348 {
6349 my $text = "$cond does not appear in AM_CONDITIONAL";
6350 my $scope = US_LOCAL;
6351 if (exists $_am_macro_for_cond{$cond})
6352 {
6353 my $mac = $_am_macro_for_cond{$cond};
6354 $text .= "\n The usual way to define `$cond' is to add ";
6355 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6356 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6357 # These warnings appear in Automake files (depend2.am),
6358 # so there is no need to display them more than once:
6359 $scope = US_GLOBAL;
6360 }
6361 error $where, $text, uniq_scope => $scope;
6362 }
6364 push (@cond_stack, make_conditional_string ($negate, $cond));
6366 return new Automake::Condition (@cond_stack);
6367 }
6370 # $COND
6371 # cond_stack_else ($NEGATE, $COND, $WHERE)
6372 # ----------------------------------------
6373 sub cond_stack_else ($$$)
6374 {
6375 my ($negate, $cond, $where) = @_;
6377 if (! @cond_stack)
6378 {
6379 error $where, "else without if";
6380 return FALSE;
6381 }
6383 $cond_stack[$#cond_stack] =
6384 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6386 # If $COND is given, check against it.
6387 if (defined $cond)
6388 {
6389 $cond = make_conditional_string ($negate, $cond);
6391 error ($where, "else reminder ($negate$cond) incompatible with "
6392 . "current conditional: $cond_stack[$#cond_stack]")
6393 if $cond_stack[$#cond_stack] ne $cond;
6394 }
6396 return new Automake::Condition (@cond_stack);
6397 }
6400 # $COND
6401 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6402 # -----------------------------------------
6403 sub cond_stack_endif ($$$)
6404 {
6405 my ($negate, $cond, $where) = @_;
6406 my $old_cond;
6408 if (! @cond_stack)
6409 {
6410 error $where, "endif without if";
6411 return TRUE;
6412 }
6414 # If $COND is given, check against it.
6415 if (defined $cond)
6416 {
6417 $cond = make_conditional_string ($negate, $cond);
6419 error ($where, "endif reminder ($negate$cond) incompatible with "
6420 . "current conditional: $cond_stack[$#cond_stack]")
6421 if $cond_stack[$#cond_stack] ne $cond;
6422 }
6424 pop @cond_stack;
6426 return new Automake::Condition (@cond_stack);
6427 }
6433 ## ------------------------ ##
6434 ## Handling the variables. ##
6435 ## ------------------------ ##
6438 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6439 # -----------------------------------------------------
6440 # Like define_variable, but the value is a list, and the variable may
6441 # be defined conditionally. The second argument is the condition
6442 # under which the value should be defined; this should be the empty
6443 # string to define the variable unconditionally. The third argument
6444 # is a list holding the values to use for the variable. The value is
6445 # pretty printed in the output file.
6446 sub define_pretty_variable ($$$@)
6447 {
6448 my ($var, $cond, $where, @value) = @_;
6450 if (! vardef ($var, $cond))
6451 {
6452 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6453 '', $where, VAR_PRETTY);
6454 rvar ($var)->rdef ($cond)->set_seen;
6455 }
6456 }
6459 # define_variable ($VAR, $VALUE, $WHERE)
6460 # --------------------------------------
6461 # Define a new Automake Makefile variable VAR to VALUE, but only if
6462 # not already defined.
6463 sub define_variable ($$$)
6464 {
6465 my ($var, $value, $where) = @_;
6466 define_pretty_variable ($var, TRUE, $where, $value);
6467 }
6470 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6471 # -----------------------------------------------------------
6472 # Define the $VAR which content is the list of file names composed of
6473 # a @BASENAME and the $EXTENSION.
6474 sub define_files_variable ($\@$$)
6475 {
6476 my ($var, $basename, $extension, $where) = @_;
6477 define_variable ($var,
6478 join (' ', map { "$_.$extension" } @$basename),
6479 $where);
6480 }
6483 # Like define_variable, but define a variable to be the configure
6484 # substitution by the same name.
6485 sub define_configure_variable ($)
6486 {
6487 my ($var) = @_;
6489 my $pretty = VAR_ASIS;
6490 my $owner = VAR_CONFIGURE;
6492 # Some variables we do not want to output. For instance it
6493 # would be a bad idea to output `U = @U@` when `@U@` can be
6494 # substituted as `\`.
6495 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6497 # ANSI2KNR is a variable that Automake wants to redefine, so
6498 # it must be owned by Automake. (It is also used as a proof
6499 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6500 # omit the AC_SUBST.)
6501 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6503 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6504 '', $configure_vars{$var}, $pretty);
6505 }
6508 # define_compiler_variable ($LANG)
6509 # --------------------------------
6510 # Define a compiler variable. We also handle defining the `LT'
6511 # version of the command when using libtool.
6512 sub define_compiler_variable ($)
6513 {
6514 my ($lang) = @_;
6516 my ($var, $value) = ($lang->compiler, $lang->compile);
6517 my $libtool_tag = '';
6518 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6519 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6520 &define_variable ($var, $value, INTERNAL);
6521 if (var ('LIBTOOL'))
6522 {
6523 my $verbose = define_verbose_libtool ();
6524 &define_variable ("LT$var",
6525 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6526 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6527 INTERNAL);
6528 }
6529 define_verbose_tagvar ($lang->ccer || 'GEN');
6530 }
6533 # define_linker_variable ($LANG)
6534 # ------------------------------
6535 # Define linker variables.
6536 sub define_linker_variable ($)
6537 {
6538 my ($lang) = @_;
6540 my $libtool_tag = '';
6541 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6542 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6543 # CCLD = $(CC).
6544 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6545 # CCLINK = $(CCLD) blah blah...
6546 my $link = '';
6547 if (var ('LIBTOOL'))
6548 {
6549 my $verbose = define_verbose_libtool ();
6550 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6551 . "\$(LIBTOOLFLAGS) --mode=link ";
6552 }
6553 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6554 &define_variable ($lang->compiler, $lang);
6555 &define_verbose_tagvar ($lang->lder || 'GEN');
6556 }
6558 sub define_per_target_linker_variable ($$)
6559 {
6560 my ($linker, $target) = @_;
6562 # If the user wrote a custom link command, we don't define ours.
6563 return "${target}_LINK"
6564 if set_seen "${target}_LINK";
6566 my $xlink = $linker ? $linker : 'LINK';
6568 my $lang = $link_languages{$xlink};
6569 prog_error "Unknown language for linker variable `$xlink'"
6570 unless $lang;
6572 my $link_command = $lang->link;
6573 if (var 'LIBTOOL')
6574 {
6575 my $libtool_tag = '';
6576 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6577 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6579 my $verbose = define_verbose_libtool ();
6580 $link_command =
6581 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6582 . "--mode=link " . $link_command;
6583 }
6585 # Rewrite each occurrence of `AM_$flag' in the link
6586 # command into `${derived}_$flag' if it exists.
6587 my $orig_command = $link_command;
6588 my @flags = (@{$lang->flags}, 'LDFLAGS');
6589 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6590 for my $flag (@flags)
6591 {
6592 my $val = "${target}_$flag";
6593 $link_command =~ s/\(AM_$flag\)/\($val\)/
6594 if set_seen ($val);
6595 }
6597 # If the computed command is the same as the generic command, use
6598 # the command linker variable.
6599 return ($lang->linker, $lang->lder)
6600 if $link_command eq $orig_command;
6602 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6603 return ("${target}_LINK", $lang->lder);
6604 }
6606 ################################################################
6608 # &check_trailing_slash ($WHERE, $LINE)
6609 # --------------------------------------
6610 # Return 1 iff $LINE ends with a slash.
6611 # Might modify $LINE.
6612 sub check_trailing_slash ($\$)
6613 {
6614 my ($where, $line) = @_;
6616 # Ignore `##' lines.
6617 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6619 # Catch and fix a common error.
6620 msg "syntax", $where, "whitespace following trailing backslash"
6621 if $$line =~ s/\\\s+\n$/\\\n/;
6623 return $$line =~ /\\$/;
6624 }
6627 # &read_am_file ($AMFILE, $WHERE)
6628 # -------------------------------
6629 # Read Makefile.am and set up %contents. Simultaneously copy lines
6630 # from Makefile.am into $output_trailer, or define variables as
6631 # appropriate. NOTE we put rules in the trailer section. We want
6632 # user rules to come after our generated stuff.
6633 sub read_am_file ($$)
6634 {
6635 my ($amfile, $where) = @_;
6637 my $am_file = new Automake::XFile ("< $amfile");
6638 verb "reading $amfile";
6640 # Keep track of the youngest output dependency.
6641 my $mtime = mtime $amfile;
6642 $output_deps_greatest_timestamp = $mtime
6643 if $mtime > $output_deps_greatest_timestamp;
6645 my $spacing = '';
6646 my $comment = '';
6647 my $blank = 0;
6648 my $saw_bk = 0;
6649 my $var_look = VAR_ASIS;
6651 use constant IN_VAR_DEF => 0;
6652 use constant IN_RULE_DEF => 1;
6653 use constant IN_COMMENT => 2;
6654 my $prev_state = IN_RULE_DEF;
6656 while ($_ = $am_file->getline)
6657 {
6658 $where->set ("$amfile:$.");
6659 if (/$IGNORE_PATTERN/o)
6660 {
6661 # Merely delete comments beginning with two hashes.
6662 }
6663 elsif (/$WHITE_PATTERN/o)
6664 {
6665 error $where, "blank line following trailing backslash"
6666 if $saw_bk;
6667 # Stick a single white line before the incoming macro or rule.
6668 $spacing = "\n";
6669 $blank = 1;
6670 # Flush all comments seen so far.
6671 if ($comment ne '')
6672 {
6673 $output_vars .= $comment;
6674 $comment = '';
6675 }
6676 }
6677 elsif (/$COMMENT_PATTERN/o)
6678 {
6679 # Stick comments before the incoming macro or rule. Make
6680 # sure a blank line precedes the first block of comments.
6681 $spacing = "\n" unless $blank;
6682 $blank = 1;
6683 $comment .= $spacing . $_;
6684 $spacing = '';
6685 $prev_state = IN_COMMENT;
6686 }
6687 else
6688 {
6689 last;
6690 }
6691 $saw_bk = check_trailing_slash ($where, $_);
6692 }
6694 # We save the conditional stack on entry, and then check to make
6695 # sure it is the same on exit. This lets us conditionally include
6696 # other files.
6697 my @saved_cond_stack = @cond_stack;
6698 my $cond = new Automake::Condition (@cond_stack);
6700 my $last_var_name = '';
6701 my $last_var_type = '';
6702 my $last_var_value = '';
6703 my $last_where;
6704 # FIXME: shouldn't use $_ in this loop; it is too big.
6705 while ($_)
6706 {
6707 $where->set ("$amfile:$.");
6709 # Make sure the line is \n-terminated.
6710 chomp;
6711 $_ .= "\n";
6713 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6714 # used by users. @MAINT@ is an anachronism now.
6715 $_ =~ s/\@MAINT\@//g
6716 unless $seen_maint_mode;
6718 my $new_saw_bk = check_trailing_slash ($where, $_);
6720 if (/$IGNORE_PATTERN/o)
6721 {
6722 # Merely delete comments beginning with two hashes.
6724 # Keep any backslash from the previous line.
6725 $new_saw_bk = $saw_bk;
6726 }
6727 elsif (/$WHITE_PATTERN/o)
6728 {
6729 # Stick a single white line before the incoming macro or rule.
6730 $spacing = "\n";
6731 error $where, "blank line following trailing backslash"
6732 if $saw_bk;
6733 }
6734 elsif (/$COMMENT_PATTERN/o)
6735 {
6736 error $where, "comment following trailing backslash"
6737 if $saw_bk && $prev_state != IN_COMMENT;
6739 # Stick comments before the incoming macro or rule.
6740 $comment .= $spacing . $_;
6741 $spacing = '';
6742 $prev_state = IN_COMMENT;
6743 }
6744 elsif ($saw_bk)
6745 {
6746 if ($prev_state == IN_RULE_DEF)
6747 {
6748 my $cond = new Automake::Condition @cond_stack;
6749 $output_trailer .= $cond->subst_string;
6750 $output_trailer .= $_;
6751 }
6752 elsif ($prev_state == IN_COMMENT)
6753 {
6754 # If the line doesn't start with a `#', add it.
6755 # We do this because a continued comment like
6756 # # A = foo \
6757 # bar \
6758 # baz
6759 # is not portable. BSD make doesn't honor
6760 # escaped newlines in comments.
6761 s/^#?/#/;
6762 $comment .= $spacing . $_;
6763 }
6764 else # $prev_state == IN_VAR_DEF
6765 {
6766 $last_var_value .= ' '
6767 unless $last_var_value =~ /\s$/;
6768 $last_var_value .= $_;
6770 if (!/\\$/)
6771 {
6772 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6773 $last_var_type, $cond,
6774 $last_var_value, $comment,
6775 $last_where, VAR_ASIS)
6776 if $cond != FALSE;
6777 $comment = $spacing = '';
6778 }
6779 }
6780 }
6782 elsif (/$IF_PATTERN/o)
6783 {
6784 $cond = cond_stack_if ($1, $2, $where);
6785 }
6786 elsif (/$ELSE_PATTERN/o)
6787 {
6788 $cond = cond_stack_else ($1, $2, $where);
6789 }
6790 elsif (/$ENDIF_PATTERN/o)
6791 {
6792 $cond = cond_stack_endif ($1, $2, $where);
6793 }
6795 elsif (/$RULE_PATTERN/o)
6796 {
6797 # Found a rule.
6798 $prev_state = IN_RULE_DEF;
6800 # For now we have to output all definitions of user rules
6801 # and can't diagnose duplicates (see the comment in
6802 # Automake::Rule::define). So we go on and ignore the return value.
6803 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6805 check_variable_expansions ($_, $where);
6807 $output_trailer .= $comment . $spacing;
6808 my $cond = new Automake::Condition @cond_stack;
6809 $output_trailer .= $cond->subst_string;
6810 $output_trailer .= $_;
6811 $comment = $spacing = '';
6812 }
6813 elsif (/$ASSIGNMENT_PATTERN/o)
6814 {
6815 # Found a macro definition.
6816 $prev_state = IN_VAR_DEF;
6817 $last_var_name = $1;
6818 $last_var_type = $2;
6819 $last_var_value = $3;
6820 $last_where = $where->clone;
6821 if ($3 ne '' && substr ($3, -1) eq "\\")
6822 {
6823 # We preserve the `\' because otherwise the long lines
6824 # that are generated will be truncated by broken
6825 # `sed's.
6826 $last_var_value = $3 . "\n";
6827 }
6828 # Normally we try to output variable definitions in the
6829 # same format they were input. However, POSIX compliant
6830 # systems are not required to support lines longer than
6831 # 2048 bytes (most notably, some sed implementation are
6832 # limited to 4000 bytes, and sed is used by config.status
6833 # to rewrite Makefile.in into Makefile). Moreover nobody
6834 # would really write such long lines by hand since it is
6835 # hardly maintainable. So if a line is longer that 1000
6836 # bytes (an arbitrary limit), assume it has been
6837 # automatically generated by some tools, and flatten the
6838 # variable definition. Otherwise, keep the variable as it
6839 # as been input.
6840 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6842 if (!/\\$/)
6843 {
6844 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6845 $last_var_type, $cond,
6846 $last_var_value, $comment,
6847 $last_where, $var_look)
6848 if $cond != FALSE;
6849 $comment = $spacing = '';
6850 $var_look = VAR_ASIS;
6851 }
6852 }
6853 elsif (/$INCLUDE_PATTERN/o)
6854 {
6855 my $path = $1;
6857 if ($path =~ s/^\$\(top_srcdir\)\///)
6858 {
6859 push (@include_stack, "\$\(top_srcdir\)/$path");
6860 # Distribute any included file.
6862 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6863 # otherwise OSF make will implicitly copy the included
6864 # file in the build tree during `make distdir' to satisfy
6865 # the dependency.
6866 # (subdircond2.test and subdircond3.test will fail.)
6867 push_dist_common ("\$\(top_srcdir\)/$path");
6868 }
6869 else
6870 {
6871 $path =~ s/\$\(srcdir\)\///;
6872 push (@include_stack, "\$\(srcdir\)/$path");
6873 # Always use the $(srcdir) prefix in DIST_COMMON,
6874 # otherwise OSF make will implicitly copy the included
6875 # file in the build tree during `make distdir' to satisfy
6876 # the dependency.
6877 # (subdircond2.test and subdircond3.test will fail.)
6878 push_dist_common ("\$\(srcdir\)/$path");
6879 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6880 }
6881 $where->push_context ("`$path' included from here");
6882 &read_am_file ($path, $where);
6883 $where->pop_context;
6884 }
6885 else
6886 {
6887 # This isn't an error; it is probably a continued rule.
6888 # In fact, this is what we assume.
6889 $prev_state = IN_RULE_DEF;
6890 check_variable_expansions ($_, $where);
6891 $output_trailer .= $comment . $spacing;
6892 my $cond = new Automake::Condition @cond_stack;
6893 $output_trailer .= $cond->subst_string;
6894 $output_trailer .= $_;
6895 $comment = $spacing = '';
6896 error $where, "`#' comment at start of rule is unportable"
6897 if $_ =~ /^\t\s*\#/;
6898 }
6900 $saw_bk = $new_saw_bk;
6901 $_ = $am_file->getline;
6902 }
6904 $output_trailer .= $comment;
6906 error ($where, "trailing backslash on last line")
6907 if $saw_bk;
6909 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6910 : "too many conditionals closed in include file"))
6911 if "@saved_cond_stack" ne "@cond_stack";
6912 }
6915 # define_standard_variables ()
6916 # ----------------------------
6917 # A helper for read_main_am_file which initializes configure variables
6918 # and variables from header-vars.am.
6919 sub define_standard_variables
6920 {
6921 my $saved_output_vars = $output_vars;
6922 my ($comments, undef, $rules) =
6923 file_contents_internal (1, "$libdir/am/header-vars.am",
6924 new Automake::Location);
6926 foreach my $var (sort keys %configure_vars)
6927 {
6928 &define_configure_variable ($var);
6929 }
6931 $output_vars .= $comments . $rules;
6932 }
6934 # Read main am file.
6935 sub read_main_am_file
6936 {
6937 my ($amfile) = @_;
6939 # This supports the strange variable tricks we are about to play.
6940 prog_error (macros_dump () . "variable defined before read_main_am_file")
6941 if (scalar (variables) > 0);
6943 # Generate copyright header for generated Makefile.in.
6944 # We do discard the output of predefined variables, handled below.
6945 $output_vars = ("# $in_file_name generated by automake "
6946 . $VERSION . " from $am_file_name.\n");
6947 $output_vars .= '# ' . subst ('configure_input') . "\n";
6948 $output_vars .= $gen_copyright;
6950 # We want to predefine as many variables as possible. This lets
6951 # the user set them with `+=' in Makefile.am.
6952 &define_standard_variables;
6954 # Read user file, which might override some of our values.
6955 &read_am_file ($amfile, new Automake::Location);
6956 }
6960 ################################################################
6962 # $FLATTENED
6963 # &flatten ($STRING)
6964 # ------------------
6965 # Flatten the $STRING and return the result.
6966 sub flatten
6967 {
6968 $_ = shift;
6970 s/\\\n//somg;
6971 s/\s+/ /g;
6972 s/^ //;
6973 s/ $//;
6975 return $_;
6976 }
6979 # transform_token ($TOKEN, \%PAIRS, $KEY)
6980 # =======================================
6981 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6982 # (which should be ?KEY? or any of the special %% requests)..
6983 sub transform_token ($$$)
6984 {
6985 my ($token, $transform, $key) = @_;
6986 my $res = $transform->{$key};
6987 prog_error "Unknown key `$key' in `$token'" unless defined $res;
6988 return $res;
6989 }
6992 # transform ($TOKEN, \%PAIRS)
6993 # ===========================
6994 # If ($TOKEN, $VAL) is in %PAIRS:
6995 # - replaces %KEY% with $VAL,
6996 # - enables/disables ?KEY? and ?!KEY?,
6997 # - replaces %?KEY% with TRUE or FALSE.
6998 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6999 # IFTRUE / IFFALSE, as appropriate.
7000 sub transform ($$)
7001 {
7002 my ($token, $transform) = @_;
7004 # %KEY%.
7005 # Must be before the following pattern to exclude the case
7006 # when there is neither IFTRUE nor IFFALSE.
7007 if ($token =~ /^%([\w\-]+)%$/)
7008 {
7009 return transform_token ($token, $transform, $1);
7010 }
7011 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
7012 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
7013 {
7014 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
7015 }
7016 # %?KEY%.
7017 elsif ($token =~ /^%\?([\w\-]+)%$/)
7018 {
7019 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
7020 }
7021 # ?KEY? and ?!KEY?.
7022 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
7023 {
7024 my $neg = ($1 eq '!') ? 1 : 0;
7025 my $val = transform_token ($token, $transform, $2);
7026 return (!!$val == $neg) ? '##%' : '';
7027 }
7028 else
7029 {
7030 prog_error "Unknown request format: $token";
7031 }
7032 }
7035 # @PARAGRAPHS
7036 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7037 # ------------------------------------------
7038 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7039 # paragraphs.
7040 sub make_paragraphs ($%)
7041 {
7042 my ($file, %transform) = @_;
7044 # Complete %transform with global options.
7045 # Note that %transform goes last, so it overrides global options.
7046 %transform = ('CYGNUS' => !! option 'cygnus',
7047 'MAINTAINER-MODE'
7048 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7050 'XZ' => !! option 'dist-xz',
7051 'LZMA' => !! option 'dist-lzma',
7052 'BZIP2' => !! option 'dist-bzip2',
7053 'COMPRESS' => !! option 'dist-tarZ',
7054 'GZIP' => ! option 'no-dist-gzip',
7055 'SHAR' => !! option 'dist-shar',
7056 'ZIP' => !! option 'dist-zip',
7058 'INSTALL-INFO' => ! option 'no-installinfo',
7059 'INSTALL-MAN' => ! option 'no-installman',
7060 'HAVE-MANS' => !! var ('MANS'),
7061 'CK-NEWS' => !! option 'check-news',
7063 'SUBDIRS' => !! var ('SUBDIRS'),
7064 'TOPDIR_P' => $relative_dir eq '.',
7066 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7067 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7068 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7070 'LIBTOOL' => !! var ('LIBTOOL'),
7071 'NONLIBTOOL' => 1,
7072 'FIRST' => ! $transformed_files{$file},
7073 %transform);
7075 $transformed_files{$file} = 1;
7076 $_ = $am_file_cache{$file};
7078 if (! defined $_)
7079 {
7080 verb "reading $file";
7081 # Swallow the whole file.
7082 my $fc_file = new Automake::XFile "< $file";
7083 my $saved_dollar_slash = $/;
7084 undef $/;
7085 $_ = $fc_file->getline;
7086 $/ = $saved_dollar_slash;
7087 $fc_file->close;
7089 # Remove ##-comments.
7090 # Besides we don't need more than two consecutive new-lines.
7091 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7093 $am_file_cache{$file} = $_;
7094 }
7096 # Substitute Automake template tokens.
7097 s/(?: % \?? [\w\-]+ %
7098 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7099 | \? !? [\w\-]+ \?
7100 )/transform($&, \%transform)/gex;
7101 # transform() may have added some ##%-comments to strip.
7102 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7103 # ####### and do not remove the latter.)
7104 s/^[ \t]*(?:##%)+.*\n//gm;
7106 # Split at unescaped new lines.
7107 my @lines = split (/(?<!\\)\n/, $_);
7108 my @res;
7110 while (defined ($_ = shift @lines))
7111 {
7112 my $paragraph = $_;
7113 # If we are a rule, eat as long as we start with a tab.
7114 if (/$RULE_PATTERN/smo)
7115 {
7116 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7117 {
7118 $paragraph .= "\n$_";
7119 }
7120 unshift (@lines, $_);
7121 }
7123 # If we are a comments, eat as much comments as you can.
7124 elsif (/$COMMENT_PATTERN/smo)
7125 {
7126 while (defined ($_ = shift @lines)
7127 && $_ =~ /$COMMENT_PATTERN/smo)
7128 {
7129 $paragraph .= "\n$_";
7130 }
7131 unshift (@lines, $_);
7132 }
7134 push @res, $paragraph;
7135 }
7137 return @res;
7138 }
7142 # ($COMMENT, $VARIABLES, $RULES)
7143 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7144 # -------------------------------------------------------------
7145 # Return contents of a file from $libdir/am, automatically skipping
7146 # macros or rules which are already known. $IS_AM iff the caller is
7147 # reading an Automake file (as opposed to the user's Makefile.am).
7148 sub file_contents_internal ($$$%)
7149 {
7150 my ($is_am, $file, $where, %transform) = @_;
7152 $where->set ($file);
7154 my $result_vars = '';
7155 my $result_rules = '';
7156 my $comment = '';
7157 my $spacing = '';
7159 # The following flags are used to track rules spanning across
7160 # multiple paragraphs.
7161 my $is_rule = 0; # 1 if we are processing a rule.
7162 my $discard_rule = 0; # 1 if the current rule should not be output.
7164 # We save the conditional stack on entry, and then check to make
7165 # sure it is the same on exit. This lets us conditionally include
7166 # other files.
7167 my @saved_cond_stack = @cond_stack;
7168 my $cond = new Automake::Condition (@cond_stack);
7170 foreach (make_paragraphs ($file, %transform))
7171 {
7172 # FIXME: no line number available.
7173 $where->set ($file);
7175 # Sanity checks.
7176 error $where, "blank line following trailing backslash:\n$_"
7177 if /\\$/;
7178 error $where, "comment following trailing backslash:\n$_"
7179 if /\\#/;
7181 if (/^$/)
7182 {
7183 $is_rule = 0;
7184 # Stick empty line before the incoming macro or rule.
7185 $spacing = "\n";
7186 }
7187 elsif (/$COMMENT_PATTERN/mso)
7188 {
7189 $is_rule = 0;
7190 # Stick comments before the incoming macro or rule.
7191 $comment = "$_\n";
7192 }
7194 # Handle inclusion of other files.
7195 elsif (/$INCLUDE_PATTERN/o)
7196 {
7197 if ($cond != FALSE)
7198 {
7199 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7200 $where->push_context ("`$file' included from here");
7201 # N-ary `.=' fails.
7202 my ($com, $vars, $rules)
7203 = file_contents_internal ($is_am, $file, $where, %transform);
7204 $where->pop_context;
7205 $comment .= $com;
7206 $result_vars .= $vars;
7207 $result_rules .= $rules;
7208 }
7209 }
7211 # Handling the conditionals.
7212 elsif (/$IF_PATTERN/o)
7213 {
7214 $cond = cond_stack_if ($1, $2, $file);
7215 }
7216 elsif (/$ELSE_PATTERN/o)
7217 {
7218 $cond = cond_stack_else ($1, $2, $file);
7219 }
7220 elsif (/$ENDIF_PATTERN/o)
7221 {
7222 $cond = cond_stack_endif ($1, $2, $file);
7223 }
7225 # Handling rules.
7226 elsif (/$RULE_PATTERN/mso)
7227 {
7228 $is_rule = 1;
7229 $discard_rule = 0;
7230 # Separate relationship from optional actions: the first
7231 # `new-line tab" not preceded by backslash (continuation
7232 # line).
7233 my $paragraph = $_;
7234 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7235 my ($relationship, $actions) = ($1, $2 || '');
7237 # Separate targets from dependencies: the first colon.
7238 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7239 my ($targets, $dependencies) = ($1, $2);
7240 # Remove the escaped new lines.
7241 # I don't know why, but I have to use a tmp $flat_deps.
7242 my $flat_deps = &flatten ($dependencies);
7243 my @deps = split (' ', $flat_deps);
7245 foreach (split (' ', $targets))
7246 {
7247 # FIXME: 1. We are not robust to people defining several targets
7248 # at once, only some of them being in %dependencies. The
7249 # actions from the targets in %dependencies are usually generated
7250 # from the content of %actions, but if some targets in $targets
7251 # are not in %dependencies the ELSE branch will output
7252 # a rule for all $targets (i.e. the targets which are both
7253 # in %dependencies and $targets will have two rules).
7255 # FIXME: 2. The logic here is not able to output a
7256 # multi-paragraph rule several time (e.g. for each condition
7257 # it is defined for) because it only knows the first paragraph.
7259 # FIXME: 3. We are not robust to people defining a subset
7260 # of a previously defined "multiple-target" rule. E.g.
7261 # `foo:' after `foo bar:'.
7263 # Output only if not in FALSE.
7264 if (defined $dependencies{$_} && $cond != FALSE)
7265 {
7266 &depend ($_, @deps);
7267 register_action ($_, $actions);
7268 }
7269 else
7270 {
7271 # Free-lance dependency. Output the rule for all the
7272 # targets instead of one by one.
7273 my @undefined_conds =
7274 Automake::Rule::define ($targets, $file,
7275 $is_am ? RULE_AUTOMAKE : RULE_USER,
7276 $cond, $where);
7277 for my $undefined_cond (@undefined_conds)
7278 {
7279 my $condparagraph = $paragraph;
7280 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7281 $result_rules .= "$spacing$comment$condparagraph\n";
7282 }
7283 if (scalar @undefined_conds == 0)
7284 {
7285 # Remember to discard next paragraphs
7286 # if they belong to this rule.
7287 # (but see also FIXME: #2 above.)
7288 $discard_rule = 1;
7289 }
7290 $comment = $spacing = '';
7291 last;
7292 }
7293 }
7294 }
7296 elsif (/$ASSIGNMENT_PATTERN/mso)
7297 {
7298 my ($var, $type, $val) = ($1, $2, $3);
7299 error $where, "variable `$var' with trailing backslash"
7300 if /\\$/;
7302 $is_rule = 0;
7304 Automake::Variable::define ($var,
7305 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7306 $type, $cond, $val, $comment, $where,
7307 VAR_ASIS)
7308 if $cond != FALSE;
7310 $comment = $spacing = '';
7311 }
7312 else
7313 {
7314 # This isn't an error; it is probably some tokens which
7315 # configure is supposed to replace, such as `@SET-MAKE@',
7316 # or some part of a rule cut by an if/endif.
7317 if (! $cond->false && ! ($is_rule && $discard_rule))
7318 {
7319 s/^/$cond->subst_string/gme;
7320 $result_rules .= "$spacing$comment$_\n";
7321 }
7322 $comment = $spacing = '';
7323 }
7324 }
7326 error ($where, @cond_stack ?
7327 "unterminated conditionals: @cond_stack" :
7328 "too many conditionals closed in include file")
7329 if "@saved_cond_stack" ne "@cond_stack";
7331 return ($comment, $result_vars, $result_rules);
7332 }
7335 # $CONTENTS
7336 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7337 # ------------------------------------------------
7338 # Return contents of a file from $libdir/am, automatically skipping
7339 # macros or rules which are already known.
7340 sub file_contents ($$%)
7341 {
7342 my ($basename, $where, %transform) = @_;
7343 my ($comments, $variables, $rules) =
7344 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7345 %transform);
7346 return "$comments$variables$rules";
7347 }
7350 # @PREFIX
7351 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7352 # -----------------------------------------------------
7353 # Find all variable prefixes that are used for install directories. A
7354 # prefix `zar' qualifies iff:
7355 #
7356 # * `zardir' is a variable.
7357 # * `zar_PRIMARY' is a variable.
7358 #
7359 # As a side effect, it looks for misspellings. It is an error to have
7360 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7361 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7362 # of the same name (with "dir" appended) exists. For instance, if the
7363 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7364 # This is to provide a little extra flexibility in those cases which
7365 # need it.
7366 sub am_primary_prefixes ($$@)
7367 {
7368 my ($primary, $can_dist, @prefixes) = @_;
7370 local $_;
7371 my %valid = map { $_ => 0 } @prefixes;
7372 $valid{'EXTRA'} = 0;
7373 foreach my $var (variables $primary)
7374 {
7375 # Automake is allowed to define variables that look like primaries
7376 # but which aren't. E.g. INSTALL_sh_DATA.
7377 # Autoconf can also define variables like INSTALL_DATA, so
7378 # ignore all configure variables (at least those which are not
7379 # redefined in Makefile.am).
7380 # FIXME: We should make sure that these variables are not
7381 # conditionally defined (or else adjust the condition below).
7382 my $def = $var->def (TRUE);
7383 next if $def && $def->owner != VAR_MAKEFILE;
7385 my $varname = $var->name;
7387 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7388 {
7389 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7390 if ($dist ne '' && ! $can_dist)
7391 {
7392 err_var ($var,
7393 "invalid variable `$varname': `dist' is forbidden");
7394 }
7395 # Standard directories must be explicitly allowed.
7396 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7397 {
7398 err_var ($var,
7399 "`${X}dir' is not a legitimate directory " .
7400 "for `$primary'");
7401 }
7402 # A not explicitly valid directory is allowed if Xdir is defined.
7403 elsif (! defined $valid{$X} &&
7404 $var->requires_variables ("`$varname' is used", "${X}dir"))
7405 {
7406 # Nothing to do. Any error message has been output
7407 # by $var->requires_variables.
7408 }
7409 else
7410 {
7411 # Ensure all extended prefixes are actually used.
7412 $valid{"$base$dist$X"} = 1;
7413 }
7414 }
7415 else
7416 {
7417 prog_error "unexpected variable name: $varname";
7418 }
7419 }
7421 # Return only those which are actually defined.
7422 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7423 }
7426 # Handle `where_HOW' variable magic. Does all lookups, generates
7427 # install code, and possibly generates code to define the primary
7428 # variable. The first argument is the name of the .am file to munge,
7429 # the second argument is the primary variable (e.g. HEADERS), and all
7430 # subsequent arguments are possible installation locations.
7431 #
7432 # Returns list of [$location, $value] pairs, where
7433 # $value's are the values in all where_HOW variable, and $location
7434 # there associated location (the place here their parent variables were
7435 # defined).
7436 #
7437 # FIXME: this should be rewritten to be cleaner. It should be broken
7438 # up into multiple functions.
7439 #
7440 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7441 sub am_install_var
7442 {
7443 my (@args) = @_;
7445 my $do_require = 1;
7446 my $can_dist = 0;
7447 my $default_dist = 0;
7448 while (@args)
7449 {
7450 if ($args[0] eq '-noextra')
7451 {
7452 $do_require = 0;
7453 }
7454 elsif ($args[0] eq '-candist')
7455 {
7456 $can_dist = 1;
7457 }
7458 elsif ($args[0] eq '-defaultdist')
7459 {
7460 $default_dist = 1;
7461 $can_dist = 1;
7462 }
7463 elsif ($args[0] !~ /^-/)
7464 {
7465 last;
7466 }
7467 shift (@args);
7468 }
7470 my ($file, $primary, @prefix) = @args;
7472 # Now that configure substitutions are allowed in where_HOW
7473 # variables, it is an error to actually define the primary. We
7474 # allow `JAVA', as it is customarily used to mean the Java
7475 # interpreter. This is but one of several Java hacks. Similarly,
7476 # `PYTHON' is customarily used to mean the Python interpreter.
7477 reject_var $primary, "`$primary' is an anachronism"
7478 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7480 # Get the prefixes which are valid and actually used.
7481 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7483 # If a primary includes a configure substitution, then the EXTRA_
7484 # form is required. Otherwise we can't properly do our job.
7485 my $require_extra;
7487 my @used = ();
7488 my @result = ();
7490 foreach my $X (@prefix)
7491 {
7492 my $nodir_name = $X;
7493 my $one_name = $X . '_' . $primary;
7494 my $one_var = var $one_name;
7496 my $strip_subdir = 1;
7497 # If subdir prefix should be preserved, do so.
7498 if ($nodir_name =~ /^nobase_/)
7499 {
7500 $strip_subdir = 0;
7501 $nodir_name =~ s/^nobase_//;
7502 }
7504 # If files should be distributed, do so.
7505 my $dist_p = 0;
7506 if ($can_dist)
7507 {
7508 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7509 || (! $default_dist && $nodir_name =~ /^dist_/));
7510 $nodir_name =~ s/^(dist|nodist)_//;
7511 }
7514 # Use the location of the currently processed variable.
7515 # We are not processing a particular condition, so pick the first
7516 # available.
7517 my $tmpcond = $one_var->conditions->one_cond;
7518 my $where = $one_var->rdef ($tmpcond)->location->clone;
7520 # Append actual contents of where_PRIMARY variable to
7521 # @result, skipping @substitutions@.
7522 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7523 {
7524 my ($loc, $value) = @$locvals;
7525 # Skip configure substitutions.
7526 if ($value =~ /^\@.*\@$/)
7527 {
7528 if ($nodir_name eq 'EXTRA')
7529 {
7530 error ($where,
7531 "`$one_name' contains configure substitution, "
7532 . "but shouldn't");
7533 }
7534 # Check here to make sure variables defined in
7535 # configure.ac do not imply that EXTRA_PRIMARY
7536 # must be defined.
7537 elsif (! defined $configure_vars{$one_name})
7538 {
7539 $require_extra = $one_name
7540 if $do_require;
7541 }
7542 }
7543 else
7544 {
7545 # Strip any $(EXEEXT) suffix the user might have added, or this
7546 # will confuse &handle_source_transform and &check_canonical_spelling.
7547 # We'll add $(EXEEXT) back later anyway.
7548 # Do it here rather than in handle_programs so the uniquifying at the
7549 # end of this function works.
7550 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7551 if $primary eq 'PROGRAMS';
7553 push (@result, $locvals);
7554 }
7555 }
7556 # A blatant hack: we rewrite each _PROGRAMS primary to include
7557 # EXEEXT.
7558 append_exeext { 1 } $one_name
7559 if $primary eq 'PROGRAMS';
7560 # "EXTRA" shouldn't be used when generating clean targets,
7561 # all, or install targets. We used to warn if EXTRA_FOO was
7562 # defined uselessly, but this was annoying.
7563 next
7564 if $nodir_name eq 'EXTRA';
7566 if ($nodir_name eq 'check')
7567 {
7568 push (@check, '$(' . $one_name . ')');
7569 }
7570 else
7571 {
7572 push (@used, '$(' . $one_name . ')');
7573 }
7575 # Is this to be installed?
7576 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7578 # If so, with install-exec? (or install-data?).
7579 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7581 my $check_options_p = $install_p && !! option 'std-options';
7583 # Use the location of the currently processed variable as context.
7584 $where->push_context ("while processing `$one_name'");
7586 # The variable containing all files to distribute.
7587 my $distvar = "\$($one_name)";
7588 $distvar = shadow_unconditionally ($one_name, $where)
7589 if ($dist_p && $one_var->has_conditional_contents);
7591 # Singular form of $PRIMARY.
7592 (my $one_primary = $primary) =~ s/S$//;
7593 $output_rules .= &file_contents ($file, $where,
7594 PRIMARY => $primary,
7595 ONE_PRIMARY => $one_primary,
7596 DIR => $X,
7597 NDIR => $nodir_name,
7598 BASE => $strip_subdir,
7600 EXEC => $exec_p,
7601 INSTALL => $install_p,
7602 DIST => $dist_p,
7603 DISTVAR => $distvar,
7604 'CK-OPTS' => $check_options_p);
7605 }
7607 # The JAVA variable is used as the name of the Java interpreter.
7608 # The PYTHON variable is used as the name of the Python interpreter.
7609 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7610 {
7611 # Define it.
7612 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7613 $output_vars .= "\n";
7614 }
7616 err_var ($require_extra,
7617 "`$require_extra' contains configure substitution,\n"
7618 . "but `EXTRA_$primary' not defined")
7619 if ($require_extra && ! var ('EXTRA_' . $primary));
7621 # Push here because PRIMARY might be configure time determined.
7622 push (@all, '$(' . $primary . ')')
7623 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7625 # Make the result unique. This lets the user use conditionals in
7626 # a natural way, but still lets us program lazily -- we don't have
7627 # to worry about handling a particular object more than once.
7628 # We will keep only one location per object.
7629 my %result = ();
7630 for my $pair (@result)
7631 {
7632 my ($loc, $val) = @$pair;
7633 $result{$val} = $loc;
7634 }
7635 my @l = sort keys %result;
7636 return map { [$result{$_}->clone, $_] } @l;
7637 }
7640 ################################################################
7642 # Each key in this hash is the name of a directory holding a
7643 # Makefile.in. These variables are local to `is_make_dir'.
7644 my %make_dirs = ();
7645 my $make_dirs_set = 0;
7647 sub is_make_dir
7648 {
7649 my ($dir) = @_;
7650 if (! $make_dirs_set)
7651 {
7652 foreach my $iter (@configure_input_files)
7653 {
7654 $make_dirs{dirname ($iter)} = 1;
7655 }
7656 # We also want to notice Makefile.in's.
7657 foreach my $iter (@other_input_files)
7658 {
7659 if ($iter =~ /Makefile\.in$/)
7660 {
7661 $make_dirs{dirname ($iter)} = 1;
7662 }
7663 }
7664 $make_dirs_set = 1;
7665 }
7666 return defined $make_dirs{$dir};
7667 }
7669 ################################################################
7671 # Find the aux dir. This should match the algorithm used by
7672 # ./configure. (See the Autoconf documentation for for
7673 # AC_CONFIG_AUX_DIR.)
7674 sub locate_aux_dir ()
7675 {
7676 if (! $config_aux_dir_set_in_configure_ac)
7677 {
7678 # The default auxiliary directory is the first
7679 # of ., .., or ../.. that contains install-sh.
7680 # Assume . if install-sh doesn't exist yet.
7681 for my $dir (qw (. .. ../..))
7682 {
7683 if (-f "$dir/install-sh")
7684 {
7685 $config_aux_dir = $dir;
7686 last;
7687 }
7688 }
7689 $config_aux_dir = '.' unless $config_aux_dir;
7690 }
7691 # Avoid unsightly '/.'s.
7692 $am_config_aux_dir =
7693 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7694 $am_config_aux_dir =~ s,/*$,,;
7695 }
7698 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7699 # --------------------------------------------------
7700 # See if we want to push this file onto dist_common. This function
7701 # encodes the rules for deciding when to do so.
7702 sub maybe_push_required_file
7703 {
7704 my ($dir, $file, $fullfile) = @_;
7706 if ($dir eq $relative_dir)
7707 {
7708 push_dist_common ($file);
7709 return 1;
7710 }
7711 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7712 {
7713 # If we are doing the topmost directory, and the file is in a
7714 # subdir which does not have a Makefile, then we distribute it
7715 # here.
7717 # If a required file is above the source tree, it is important
7718 # to prefix it with `$(srcdir)' so that no VPATH search is
7719 # performed. Otherwise problems occur with Make implementations
7720 # that rewrite and simplify rules whose dependencies are found in a
7721 # VPATH location. Here is an example with OSF1/Tru64 Make.
7722 #
7723 # % cat Makefile
7724 # VPATH = sub
7725 # distdir: ../a
7726 # echo ../a
7727 # % ls
7728 # Makefile a
7729 # % make
7730 # echo a
7731 # a
7732 #
7733 # Dependency `../a' was found in `sub/../a', but this make
7734 # implementation simplified it as `a'. (Note that the sub/
7735 # directory does not even exist.)
7736 #
7737 # This kind of VPATH rewriting seems hard to cancel. The
7738 # distdir.am hack against VPATH rewriting works only when no
7739 # simplification is done, i.e., for dependencies which are in
7740 # subdirectories, not in enclosing directories. Hence, in
7741 # the latter case we use a full path to make sure no VPATH
7742 # search occurs.
7743 $fullfile = '$(srcdir)/' . $fullfile
7744 if $dir =~ m,^\.\.(?:$|/),;
7746 push_dist_common ($fullfile);
7747 return 1;
7748 }
7749 return 0;
7750 }
7753 # If a file name appears as a key in this hash, then it has already
7754 # been checked for. This allows us not to report the same error more
7755 # than once.
7756 my %required_file_not_found = ();
7758 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7759 # --------------------------------------------------------------
7760 # Verify that the file must exist in $DIRECTORY, or install it.
7761 # $MYSTRICT is the strictness level at which this file becomes required.
7762 sub require_file_internal ($$$@)
7763 {
7764 my ($where, $mystrict, $dir, @files) = @_;
7766 foreach my $file (@files)
7767 {
7768 my $fullfile = "$dir/$file";
7769 my $found_it = 0;
7770 my $dangling_sym = 0;
7772 if (-l $fullfile && ! -f $fullfile)
7773 {
7774 $dangling_sym = 1;
7775 }
7776 elsif (dir_has_case_matching_file ($dir, $file))
7777 {
7778 $found_it = 1;
7779 maybe_push_required_file ($dir, $file, $fullfile);
7780 }
7782 # `--force-missing' only has an effect if `--add-missing' is
7783 # specified.
7784 if ($found_it && (! $add_missing || ! $force_missing))
7785 {
7786 next;
7787 }
7788 else
7789 {
7790 # If we've already looked for it, we're done. You might
7791 # wonder why we don't do this before searching for the
7792 # file. If we do that, then something like
7793 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7794 # DIST_COMMON.
7795 if (! $found_it)
7796 {
7797 next if defined $required_file_not_found{$fullfile};
7798 $required_file_not_found{$fullfile} = 1;
7799 }
7801 if ($strictness >= $mystrict)
7802 {
7803 if ($dangling_sym && $add_missing)
7804 {
7805 unlink ($fullfile);
7806 }
7808 my $trailer = '';
7809 my $trailer2 = '';
7810 my $suppress = 0;
7812 # Only install missing files according to our desired
7813 # strictness level.
7814 my $message = "required file `$fullfile' not found";
7815 if ($add_missing)
7816 {
7817 if (-f "$libdir/$file")
7818 {
7819 $suppress = 1;
7821 # Install the missing file. Symlink if we
7822 # can, copy if we must. Note: delete the file
7823 # first, in case it is a dangling symlink.
7824 $message = "installing `$fullfile'";
7826 # The license file should not be volatile.
7827 if ($file eq "COPYING")
7828 {
7829 $message .= " using GNU General Public License v3 file";
7830 $trailer2 = "\n Consider adding the COPYING file"
7831 . " to the version control system"
7832 . "\n for your code, to avoid questions"
7833 . " about which license your project uses.";
7834 }
7836 # Windows Perl will hang if we try to delete a
7837 # file that doesn't exist.
7838 unlink ($fullfile) if -f $fullfile;
7839 if ($symlink_exists && ! $copy_missing)
7840 {
7841 if (! symlink ("$libdir/$file", $fullfile))
7842 {
7843 $suppress = 0;
7844 $trailer = "; error while making link: $!";
7845 }
7846 }
7847 elsif (system ('cp', "$libdir/$file", $fullfile))
7848 {
7849 $suppress = 0;
7850 $trailer = "\n error while copying";
7851 }
7852 set_dir_cache_file ($dir, $file);
7853 }
7855 if (! maybe_push_required_file (dirname ($fullfile),
7856 $file, $fullfile))
7857 {
7858 if (! $found_it && ! $automake_will_process_aux_dir)
7859 {
7860 # We have added the file but could not push it
7861 # into DIST_COMMON, probably because this is
7862 # an auxiliary file and we are not processing
7863 # the top level Makefile. Furthermore Automake
7864 # hasn't been asked to create the Makefile.in
7865 # that distributes the aux dir files.
7866 error ($where, 'Please make a full run of automake'
7867 . " so $fullfile gets distributed.");
7868 }
7869 }
7870 }
7871 else
7872 {
7873 $trailer = "\n `automake --add-missing' can install `$file'"
7874 if -f "$libdir/$file";
7875 }
7877 # If --force-missing was specified, and we have
7878 # actually found the file, then do nothing.
7879 next
7880 if $found_it && $force_missing;
7882 # If we couldn't install the file, but it is a target in
7883 # the Makefile, don't print anything. This allows files
7884 # like README, AUTHORS, or THANKS to be generated.
7885 next
7886 if !$suppress && rule $file;
7888 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7889 }
7890 }
7891 }
7892 }
7894 # &require_file ($WHERE, $MYSTRICT, @FILES)
7895 # -----------------------------------------
7896 sub require_file ($$@)
7897 {
7898 my ($where, $mystrict, @files) = @_;
7899 require_file_internal ($where, $mystrict, $relative_dir, @files);
7900 }
7902 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7903 # -----------------------------------------------------------
7904 sub require_file_with_macro ($$$@)
7905 {
7906 my ($cond, $macro, $mystrict, @files) = @_;
7907 $macro = rvar ($macro) unless ref $macro;
7908 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7909 }
7911 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7912 # ----------------------------------------------------------------
7913 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7914 # must be in that directory. Otherwise expect it in the current directory.
7915 sub require_libsource_with_macro ($$$@)
7916 {
7917 my ($cond, $macro, $mystrict, @files) = @_;
7918 $macro = rvar ($macro) unless ref $macro;
7919 if ($config_libobj_dir)
7920 {
7921 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7922 $config_libobj_dir, @files);
7923 }
7924 else
7925 {
7926 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7927 }
7928 }
7930 # Queue to push require_conf_file requirements to.
7931 my $required_conf_file_queue;
7933 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
7934 # -------------------------------------------------------------------------
7935 sub queue_required_conf_file ($$$$@)
7936 {
7937 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7938 my @serial_loc;
7939 if (ref $where)
7940 {
7941 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7942 }
7943 else
7944 {
7945 @serial_loc = (QUEUE_STRING, $where);
7946 }
7947 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7948 }
7950 # &require_queued_conf_file ($QUEUE)
7951 # ----------------------------------
7952 sub require_queued_conf_file ($)
7953 {
7954 my ($queue) = @_;
7955 my $where;
7956 my $dir = $queue->dequeue ();
7957 my $loc_key = $queue->dequeue ();
7958 if ($loc_key eq QUEUE_LOCATION)
7959 {
7960 $where = Automake::Location::deserialize ($queue);
7961 }
7962 elsif ($loc_key eq QUEUE_STRING)
7963 {
7964 $where = $queue->dequeue ();
7965 }
7966 else
7967 {
7968 prog_error "unexpected key $loc_key";
7969 }
7970 my $mystrict = $queue->dequeue ();
7971 my $nfiles = $queue->dequeue ();
7972 my @files;
7973 push @files, $queue->dequeue ()
7974 foreach (1 .. $nfiles);
7976 # Dequeuing happens outside of per-makefile context, so we have to
7977 # set the variables used by require_file_internal and the functions
7978 # it calls. Gross!
7979 $relative_dir = $dir;
7980 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7981 }
7983 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7984 # ----------------------------------------------
7985 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
7986 # worker threads may queue up the action to be serialized by the master.
7987 #
7988 # FIXME: this seriously relies on the semantics of require_file_internal
7989 # and maybe_push_required_file, in that we exploit the fact that only the
7990 # contents of the last handled output file may be impacted (which in turn
7991 # is dealt with by the master thread).
7992 sub require_conf_file ($$@)
7993 {
7994 my ($where, $mystrict, @files) = @_;
7995 if (defined $required_conf_file_queue)
7996 {
7997 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
7998 $relative_dir, $where, $mystrict, @files);
7999 }
8000 else
8001 {
8002 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8003 }
8004 }
8007 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8008 # ----------------------------------------------------------------
8009 sub require_conf_file_with_macro ($$$@)
8010 {
8011 my ($cond, $macro, $mystrict, @files) = @_;
8012 require_conf_file (rvar ($macro)->rdef ($cond)->location,
8013 $mystrict, @files);
8014 }
8016 ################################################################
8018 # &require_build_directory ($DIRECTORY)
8019 # ------------------------------------
8020 # Emit rules to create $DIRECTORY if needed, and return
8021 # the file that any target requiring this directory should be made
8022 # dependent upon.
8023 # We don't want to emit the rule twice, and want to reuse it
8024 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
8025 sub require_build_directory ($)
8026 {
8027 my $directory = shift;
8029 return $directory_map{$directory} if exists $directory_map{$directory};
8031 my $cdir = File::Spec->canonpath ($directory);
8033 if (exists $directory_map{$cdir})
8034 {
8035 my $stamp = $directory_map{$cdir};
8036 $directory_map{$directory} = $stamp;
8037 return $stamp;
8038 }
8040 my $dirstamp = "$cdir/\$(am__dirstamp)";
8042 $directory_map{$directory} = $dirstamp;
8043 $directory_map{$cdir} = $dirstamp;
8045 # Set a variable for the dirstamp basename.
8046 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8047 '$(am__leading_dot)dirstamp');
8049 # Directory must be removed by `make distclean'.
8050 $clean_files{$dirstamp} = DIST_CLEAN;
8052 $output_rules .= ("$dirstamp:\n"
8053 . "\t\@\$(MKDIR_P) $directory\n"
8054 . "\t\@: > $dirstamp\n");
8056 return $dirstamp;
8057 }
8059 # &require_build_directory_maybe ($FILE)
8060 # --------------------------------------
8061 # If $FILE lies in a subdirectory, emit a rule to create this
8062 # directory and return the file that $FILE should be made
8063 # dependent upon. Otherwise, just return the empty string.
8064 sub require_build_directory_maybe ($)
8065 {
8066 my $file = shift;
8067 my $directory = dirname ($file);
8069 if ($directory ne '.')
8070 {
8071 return require_build_directory ($directory);
8072 }
8073 else
8074 {
8075 return '';
8076 }
8077 }
8079 ################################################################
8081 # Push a list of files onto dist_common.
8082 sub push_dist_common
8083 {
8084 prog_error "push_dist_common run after handle_dist"
8085 if $handle_dist_run;
8086 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8087 '', INTERNAL, VAR_PRETTY);
8088 }
8091 ################################################################
8093 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8094 # ----------------------------------------------
8095 # Generate a Makefile.in given the name of the corresponding Makefile and
8096 # the name of the file output by config.status.
8097 sub generate_makefile ($$)
8098 {
8099 my ($makefile_am, $makefile_in) = @_;
8101 # Reset all the Makefile.am related variables.
8102 initialize_per_input;
8104 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8105 # warnings for this file. So hold any warning issued before
8106 # we have processed AUTOMAKE_OPTIONS.
8107 buffer_messages ('warning');
8109 # Name of input file ("Makefile.am") and output file
8110 # ("Makefile.in"). These have no directory components.
8111 $am_file_name = basename ($makefile_am);
8112 $in_file_name = basename ($makefile_in);
8114 # $OUTPUT is encoded. If it contains a ":" then the first element
8115 # is the real output file, and all remaining elements are input
8116 # files. We don't scan or otherwise deal with these input files,
8117 # other than to mark them as dependencies. See
8118 # &scan_autoconf_files for details.
8119 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8121 $relative_dir = dirname ($makefile);
8122 $am_relative_dir = dirname ($makefile_am);
8123 $topsrcdir = backname ($relative_dir);
8125 read_main_am_file ($makefile_am);
8126 if (handle_options)
8127 {
8128 # Process buffered warnings.
8129 flush_messages;
8130 # Fatal error. Just return, so we can continue with next file.
8131 return;
8132 }
8133 # Process buffered warnings.
8134 flush_messages;
8136 # There are a few install-related variables that you should not define.
8137 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8138 {
8139 my $v = var $var;
8140 if ($v)
8141 {
8142 my $def = $v->def (TRUE);
8143 prog_error "$var not defined in condition TRUE"
8144 unless $def;
8145 reject_var $var, "`$var' should not be defined"
8146 if $def->owner != VAR_AUTOMAKE;
8147 }
8148 }
8150 # Catch some obsolete variables.
8151 msg_var ('obsolete', 'INCLUDES',
8152 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8153 if var ('INCLUDES');
8155 # Must do this after reading .am file.
8156 define_variable ('subdir', $relative_dir, INTERNAL);
8158 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8159 # recursive rules are enabled.
8160 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8161 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8163 # Check first, because we might modify some state.
8164 check_cygnus;
8165 check_gnu_standards;
8166 check_gnits_standards;
8168 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8169 handle_gettext;
8170 handle_libraries;
8171 handle_ltlibraries;
8172 handle_programs;
8173 handle_scripts;
8175 # These must be run after all the sources are scanned. They
8176 # use variables defined by &handle_libraries, &handle_ltlibraries,
8177 # or &handle_programs.
8178 handle_compile;
8179 handle_languages;
8180 handle_libtool;
8182 # Variables used by distdir.am and tags.am.
8183 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8184 if (! option 'no-dist')
8185 {
8186 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8187 }
8189 handle_multilib;
8190 handle_texinfo;
8191 handle_emacs_lisp;
8192 handle_python;
8193 handle_java;
8194 handle_man_pages;
8195 handle_data;
8196 handle_headers;
8197 handle_subdirs;
8198 handle_tags;
8199 handle_minor_options;
8200 # Must come after handle_programs so that %known_programs is up-to-date.
8201 handle_tests;
8203 # This must come after most other rules.
8204 handle_dist;
8206 handle_footer;
8207 do_check_merge_target;
8208 handle_all ($makefile);
8210 # FIXME: Gross!
8211 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8212 {
8213 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8214 }
8215 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8216 {
8217 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8218 }
8220 handle_install;
8221 handle_clean ($makefile);
8222 handle_factored_dependencies;
8224 # Comes last, because all the above procedures may have
8225 # defined or overridden variables.
8226 $output_vars .= output_variables;
8228 check_typos;
8230 my ($out_file) = $output_directory . '/' . $makefile_in;
8232 if ($exit_code != 0)
8233 {
8234 verb "not writing $out_file because of earlier errors";
8235 return;
8236 }
8238 if (! -d ($output_directory . '/' . $am_relative_dir))
8239 {
8240 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8241 }
8243 # We make sure that `all:' is the first target.
8244 my $output =
8245 "$output_vars$output_all$output_header$output_rules$output_trailer";
8247 # Decide whether we must update the output file or not.
8248 # We have to update in the following situations.
8249 # * $force_generation is set.
8250 # * any of the output dependencies is younger than the output
8251 # * the contents of the output is different (this can happen
8252 # if the project has been populated with a file listed in
8253 # @common_files since the last run).
8254 # Output's dependencies are split in two sets:
8255 # * dependencies which are also configure dependencies
8256 # These do not change between each Makefile.am
8257 # * other dependencies, specific to the Makefile.am being processed
8258 # (such as the Makefile.am itself, or any Makefile fragment
8259 # it includes).
8260 my $timestamp = mtime $out_file;
8261 if (! $force_generation
8262 && $configure_deps_greatest_timestamp < $timestamp
8263 && $output_deps_greatest_timestamp < $timestamp
8264 && $output eq contents ($out_file))
8265 {
8266 verb "$out_file unchanged";
8267 # No need to update.
8268 return;
8269 }
8271 if (-e $out_file)
8272 {
8273 unlink ($out_file)
8274 or fatal "cannot remove $out_file: $!\n";
8275 }
8277 my $gm_file = new Automake::XFile "> $out_file";
8278 verb "creating $out_file";
8279 print $gm_file $output;
8280 }
8282 ################################################################
8287 ################################################################
8289 # Print usage information.
8290 sub usage ()
8291 {
8292 print "Usage: $0 [OPTION] ... [Makefile]...
8294 Generate Makefile.in for configure from Makefile.am.
8296 Operation modes:
8297 --help print this help, then exit
8298 --version print version number, then exit
8299 -v, --verbose verbosely list files processed
8300 --no-force only update Makefile.in's that are out of date
8301 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8303 Dependency tracking:
8304 -i, --ignore-deps disable dependency tracking code
8305 --include-deps enable dependency tracking code
8307 Flavors:
8308 --cygnus assume program is part of Cygnus-style tree
8309 --foreign set strictness to foreign
8310 --gnits set strictness to gnits
8311 --gnu set strictness to gnu
8313 Library files:
8314 -a, --add-missing add missing standard files to package
8315 --libdir=DIR directory storing library files
8316 -c, --copy with -a, copy missing files (default is symlink)
8317 -f, --force-missing force update of standard files
8319 ";
8320 Automake::ChannelDefs::usage;
8322 my ($last, @lcomm);
8323 $last = '';
8324 foreach my $iter (sort ((@common_files, @common_sometimes)))
8325 {
8326 push (@lcomm, $iter) unless $iter eq $last;
8327 $last = $iter;
8328 }
8330 my @four;
8331 print "\nFiles which are automatically distributed, if found:\n";
8332 format USAGE_FORMAT =
8333 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8334 $four[0], $four[1], $four[2], $four[3]
8335 .
8336 $~ = "USAGE_FORMAT";
8338 my $cols = 4;
8339 my $rows = int(@lcomm / $cols);
8340 my $rest = @lcomm % $cols;
8342 if ($rest)
8343 {
8344 $rows++;
8345 }
8346 else
8347 {
8348 $rest = $cols;
8349 }
8351 for (my $y = 0; $y < $rows; $y++)
8352 {
8353 @four = ("", "", "", "");
8354 for (my $x = 0; $x < $cols; $x++)
8355 {
8356 last if $y + 1 == $rows && $x == $rest;
8358 my $idx = (($x > $rest)
8359 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8360 : ($rows * $x));
8362 $idx += $y;
8363 $four[$x] = $lcomm[$idx];
8364 }
8365 write;
8366 }
8368 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
8370 # --help always returns 0 per GNU standards.
8371 exit 0;
8372 }
8375 # &version ()
8376 # -----------
8377 # Print version information
8378 sub version ()
8379 {
8380 print <<EOF;
8381 automake (GNU $PACKAGE) $VERSION
8382 Copyright (C) 2009 Free Software Foundation, Inc.
8383 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8384 This is free software: you are free to change and redistribute it.
8385 There is NO WARRANTY, to the extent permitted by law.
8387 Written by Tom Tromey <tromey\@redhat.com>
8388 and Alexandre Duret-Lutz <adl\@gnu.org>.
8389 EOF
8390 # --version always returns 0 per GNU standards.
8391 exit 0;
8392 }
8394 ################################################################
8396 # Parse command line.
8397 sub parse_arguments ()
8398 {
8399 # Start off as gnu.
8400 set_strictness ('gnu');
8402 my $cli_where = new Automake::Location;
8403 my %cli_options =
8404 (
8405 'libdir=s' => \$libdir,
8406 'gnu' => sub { set_strictness ('gnu'); },
8407 'gnits' => sub { set_strictness ('gnits'); },
8408 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8409 'foreign' => sub { set_strictness ('foreign'); },
8410 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8411 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8412 $cli_where); },
8413 'no-force' => sub { $force_generation = 0; },
8414 'f|force-missing' => \$force_missing,
8415 'o|output-dir=s' => \$output_directory,
8416 'a|add-missing' => \$add_missing,
8417 'c|copy' => \$copy_missing,
8418 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8419 'W|warnings=s' => \&parse_warnings,
8420 # These long options (--Werror and --Wno-error) for backward
8421 # compatibility. Use -Werror and -Wno-error today.
8422 'Werror' => sub { parse_warnings 'W', 'error'; },
8423 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8424 );
8425 use Getopt::Long;
8426 Getopt::Long::config ("bundling", "pass_through");
8428 # See if --version or --help is used. We want to process these before
8429 # anything else because the GNU Coding Standards require us to
8430 # `exit 0' after processing these options, and we can't guarantee this
8431 # if we treat other options first. (Handling other options first
8432 # could produce error diagnostics, and in this condition it is
8433 # confusing if Automake does `exit 0'.)
8434 my %cli_options_1st_pass =
8435 (
8436 'version' => \&version,
8437 'help' => \&usage,
8438 # Recognize all other options (and their arguments) but do nothing.
8439 map { $_ => sub {} } (keys %cli_options)
8440 );
8441 my @ARGV_backup = @ARGV;
8442 Getopt::Long::GetOptions %cli_options_1st_pass
8443 or exit 1;
8444 @ARGV = @ARGV_backup;
8446 # Now *really* process the options. This time we know that --help
8447 # and --version are not present, but we specify them nonetheless so
8448 # that ambiguous abbreviation are diagnosed.
8449 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
8450 or exit 1;
8452 if (defined $output_directory)
8453 {
8454 msg 'obsolete', "`--output-dir' is deprecated\n";
8455 }
8456 else
8457 {
8458 # In the next release we'll remove this entirely.
8459 $output_directory = '.';
8460 }
8462 return unless @ARGV;
8464 if ($ARGV[0] =~ /^-./)
8465 {
8466 my %argopts;
8467 for my $k (keys %cli_options)
8468 {
8469 if ($k =~ /(.*)=s$/)
8470 {
8471 map { $argopts{(length ($_) == 1)
8472 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
8473 }
8474 }
8475 if ($ARGV[0] eq '--')
8476 {
8477 shift @ARGV;
8478 }
8479 elsif (exists $argopts{$ARGV[0]})
8480 {
8481 fatal ("option `$ARGV[0]' requires an argument\n"
8482 . "Try `$0 --help' for more information.");
8483 }
8484 else
8485 {
8486 fatal ("unrecognized option `$ARGV[0]'.\n"
8487 . "Try `$0 --help' for more information.");
8488 }
8489 }
8491 my $errspec = 0;
8492 foreach my $arg (@ARGV)
8493 {
8494 fatal ("empty argument\nTry `$0 --help' for more information.")
8495 if ($arg eq '');
8497 # Handle $local:$input syntax.
8498 my ($local, @rest) = split (/:/, $arg);
8499 @rest = ("$local.in",) unless @rest;
8500 my $input = locate_am @rest;
8501 if ($input)
8502 {
8503 push @input_files, $input;
8504 $output_files{$input} = join (':', ($local, @rest));
8505 }
8506 else
8507 {
8508 error "no Automake input file found for `$arg'";
8509 $errspec = 1;
8510 }
8511 }
8512 fatal "no input file found among supplied arguments"
8513 if $errspec && ! @input_files;
8514 }
8517 # handle_makefile ($MAKEFILE_IN)
8518 # ------------------------------
8519 # Deal with $MAKEFILE_IN.
8520 sub handle_makefile ($)
8521 {
8522 my ($file) = @_;
8523 ($am_file = $file) =~ s/\.in$//;
8524 if (! -f ($am_file . '.am'))
8525 {
8526 error "`$am_file.am' does not exist";
8527 }
8528 else
8529 {
8530 # Any warning setting now local to this Makefile.am.
8531 dup_channel_setup;
8533 generate_makefile ($am_file . '.am', $file);
8535 # Back out any warning setting.
8536 drop_channel_setup;
8537 }
8538 }
8540 # handle_makefiles_serial ()
8541 # --------------------------
8542 # Deal with all makefiles, without threads.
8543 sub handle_makefiles_serial ()
8544 {
8545 foreach my $file (@input_files)
8546 {
8547 handle_makefile ($file);
8548 }
8549 }
8551 # get_number_of_threads ()
8552 # ------------------------
8553 # Logic for deciding how many worker threads to use.
8554 sub get_number_of_threads
8555 {
8556 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8558 $nthreads = 0
8559 unless $nthreads =~ /^[0-9]+$/;
8561 # It doesn't make sense to use more threads than makefiles,
8562 my $max_threads = @input_files;
8564 # but a single worker thread is helpful for exposing bugs.
8565 if ($automake_will_process_aux_dir && $max_threads > 1)
8566 {
8567 $max_threads--;
8568 }
8569 if ($nthreads > $max_threads)
8570 {
8571 $nthreads = $max_threads;
8572 }
8573 return $nthreads;
8574 }
8576 # handle_makefiles_threaded ($NTHREADS)
8577 # -------------------------------------
8578 # Deal with all makefiles, using threads. The general strategy is to
8579 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8580 # worker threads push back everything that needs serialization:
8581 # * warning and (normal) error messages, for stable stderr output
8582 # order and content (avoiding duplicates, for example),
8583 # * races when installing aux files (and respective messages),
8584 # * races when collecting aux files for distribution.
8585 #
8586 # The latter requires that the makefile that deals with the aux dir
8587 # files be handled last, done by the master thread.
8588 sub handle_makefiles_threaded ($)
8589 {
8590 my ($nthreads) = @_;
8592 my @queued_input_files = @input_files;
8593 my $last_input_file = undef;
8594 if ($automake_will_process_aux_dir)
8595 {
8596 $last_input_file = pop @queued_input_files;
8597 }
8599 # The file queue distributes all makefiles, the message queues
8600 # collect all serializations needed for respective files.
8601 my $file_queue = Thread::Queue->new;
8602 my %msg_queues;
8603 foreach my $file (@queued_input_files)
8604 {
8605 $msg_queues{$file} = Thread::Queue->new;
8606 }
8608 verb "spawning $nthreads worker threads";
8609 my @threads = (1 .. $nthreads);
8610 foreach my $t (@threads)
8611 {
8612 $t = threads->new (sub
8613 {
8614 while (my $file = $file_queue->dequeue)
8615 {
8616 verb "handling $file";
8617 my $queue = $msg_queues{$file};
8618 setup_channel_queue ($queue, QUEUE_MESSAGE);
8619 $required_conf_file_queue = $queue;
8620 handle_makefile ($file);
8621 $queue->enqueue (undef);
8622 setup_channel_queue (undef, undef);
8623 $required_conf_file_queue = undef;
8624 }
8625 return $exit_code;
8626 });
8627 }
8629 # Queue all normal makefiles.
8630 verb "queuing " . @queued_input_files . " input files";
8631 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8633 # Collect and process serializations.
8634 foreach my $file (@queued_input_files)
8635 {
8636 verb "dequeuing messages for " . $file;
8637 reset_local_duplicates ();
8638 my $queue = $msg_queues{$file};
8639 while (my $key = $queue->dequeue)
8640 {
8641 if ($key eq QUEUE_MESSAGE)
8642 {
8643 pop_channel_queue ($queue);
8644 }
8645 elsif ($key eq QUEUE_CONF_FILE)
8646 {
8647 require_queued_conf_file ($queue);
8648 }
8649 else
8650 {
8651 prog_error "unexpected key $key";
8652 }
8653 }
8654 }
8656 foreach my $t (@threads)
8657 {
8658 my @exit_thread = $t->join;
8659 $exit_code = $exit_thread[0]
8660 if ($exit_thread[0] > $exit_code);
8661 }
8663 # The master processes the last file.
8664 if ($automake_will_process_aux_dir)
8665 {
8666 verb "processing last input file";
8667 handle_makefile ($last_input_file);
8668 }
8669 }
8671 ################################################################
8673 # Parse the WARNINGS environment variable.
8674 parse_WARNINGS;
8676 # Parse command line.
8677 parse_arguments;
8679 $configure_ac = require_configure_ac;
8681 # Do configure.ac scan only once.
8682 scan_autoconf_files;
8684 if (! @input_files)
8685 {
8686 my $msg = '';
8687 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8688 if -f 'Makefile.am';
8689 fatal ("no `Makefile.am' found for any configure output$msg");
8690 }
8692 my $nthreads = get_number_of_threads ();
8694 if ($perl_threads && $nthreads >= 1)
8695 {
8696 handle_makefiles_threaded ($nthreads);
8697 }
8698 else
8699 {
8700 handle_makefiles_serial ();
8701 }
8703 exit $exit_code;
8706 ### Setup "GNU" style for perl-mode and cperl-mode.
8707 ## Local Variables:
8708 ## perl-indent-level: 2
8709 ## perl-continued-statement-offset: 2
8710 ## perl-continued-brace-offset: 0
8711 ## perl-brace-offset: 0
8712 ## perl-brace-imaginary-offset: 0
8713 ## perl-label-offset: -2
8714 ## cperl-indent-level: 2
8715 ## cperl-brace-offset: 0
8716 ## cperl-continued-brace-offset: 0
8717 ## cperl-label-offset: -2
8718 ## cperl-extra-newline-before-brace: t
8719 ## cperl-merge-trailing-else: nil
8720 ## cperl-continued-statement-offset: 2
8721 ## End: