| blob | 10927a1fe4dae86d6684cc72138eb60ade13acdd |
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 3, 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;
576 # Keys in this hash are the basenames of files which must depend on
577 # ansi2knr. Values are either the empty string, or the directory in
578 # which the ANSI source file appears; the directory must have a
579 # trailing `/'.
580 my %de_ansi_files;
582 # This keeps track of which extensions we've seen (that we care
583 # about).
584 my %extension_seen;
586 # This is random scratch space for the language finish functions.
587 # Don't randomly overwrite it; examine other uses of keys first.
588 my %language_scratch;
590 # We keep track of which objects need special (per-executable)
591 # handling on a per-language basis.
592 my %lang_specific_files;
594 # This is set when `handle_dist' has finished. Once this happens,
595 # we should no longer push on dist_common.
596 my $handle_dist_run;
598 # Used to store a set of linkers needed to generate the sources currently
599 # under consideration.
600 my %linkers_used;
602 # True if we need `LINK' defined. This is a hack.
603 my $need_link;
605 # Was get_object_extension run?
606 # FIXME: This is a hack. a better switch should be found.
607 my $get_object_extension_was_run;
609 # Record each file processed by make_paragraphs.
610 my %transformed_files;
611 \f
613 ################################################################
615 ## ---------------------------------------------- ##
616 ## Variables not reset by &initialize_per_input. ##
617 ## ---------------------------------------------- ##
619 # Cache each file processed by make_paragraphs.
620 # (This is different from %transformed_files because
621 # %transformed_files is reset for each file while %am_file_cache
622 # it global to the run.)
623 my %am_file_cache;
625 ################################################################
627 # var_SUFFIXES_trigger ($TYPE, $VALUE)
628 # ------------------------------------
629 # This is called by Automake::Variable::define() when SUFFIXES
630 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
631 # The work here needs to be performed as a side-effect of the
632 # macro_define() call because SUFFIXES definitions impact
633 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
634 # the input am file.
635 sub var_SUFFIXES_trigger ($$)
636 {
637 my ($type, $value) = @_;
638 accept_extensions (split (' ', $value));
639 }
640 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
642 ################################################################
644 ## --------------------------------- ##
645 ## Forward subroutine declarations. ##
646 ## --------------------------------- ##
647 sub register_language (%);
648 sub file_contents_internal ($$$%);
649 sub define_files_variable ($\@$$);
652 # &initialize_per_input ()
653 # ------------------------
654 # (Re)-Initialize per-Makefile.am variables.
655 sub initialize_per_input ()
656 {
657 reset_local_duplicates ();
659 $am_file_name = undef;
660 $am_relative_dir = undef;
662 $in_file_name = undef;
663 $relative_dir = undef;
664 $topsrcdir = undef;
666 $output_deps_greatest_timestamp = 0;
668 $output_vars = '';
669 $output_all = '';
670 $output_header = '';
671 $output_rules = '';
672 $output_trailer = '';
674 Automake::Options::reset;
675 Automake::Variable::reset;
676 Automake::Rule::reset;
678 @cond_stack = ();
680 @include_stack = ();
682 @all = ();
683 @check = ();
684 @check_tests = ();
686 %clean_files = ();
687 %compile_clean_files = ();
689 # We always include `.'. This isn't strictly correct.
690 %libtool_clean_directories = ('.' => 1);
692 @sources = ();
693 @dist_sources = ();
695 %object_map = ();
696 %object_compilation_map = ();
698 %directory_map = ();
700 %dep_files = ();
702 @dist_targets = ();
704 %known_programs = ();
706 %de_ansi_files = ();
708 %extension_seen = ();
710 %language_scratch = ();
712 %lang_specific_files = ();
714 $handle_dist_run = 0;
716 $need_link = 0;
718 $get_object_extension_was_run = 0;
720 %transformed_files = ();
721 }
724 ################################################################
726 # Initialize our list of languages that are internally supported.
728 # C.
729 register_language ('name' => 'c',
730 'Name' => 'C',
731 'config_vars' => ['CC'],
732 'ansi' => 1,
733 'autodep' => '',
734 'flags' => ['CFLAGS', 'CPPFLAGS'],
735 'ccer' => 'CC',
736 'compiler' => 'COMPILE',
737 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
738 'lder' => 'CCLD',
739 'ld' => '$(CC)',
740 'linker' => 'LINK',
741 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
742 'compile_flag' => '-c',
743 'libtool_tag' => 'CC',
744 'extensions' => ['.c'],
745 '_finish' => \&lang_c_finish);
747 # C++.
748 register_language ('name' => 'cxx',
749 'Name' => 'C++',
750 'config_vars' => ['CXX'],
751 'linker' => 'CXXLINK',
752 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
753 'autodep' => 'CXX',
754 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
755 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
756 'ccer' => 'CXX',
757 'compiler' => 'CXXCOMPILE',
758 'compile_flag' => '-c',
759 'output_flag' => '-o',
760 'libtool_tag' => 'CXX',
761 'lder' => 'CXXLD',
762 'ld' => '$(CXX)',
763 'pure' => 1,
764 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
766 # Objective C.
767 register_language ('name' => 'objc',
768 'Name' => 'Objective C',
769 'config_vars' => ['OBJC'],
770 'linker' => 'OBJCLINK',
771 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
772 'autodep' => 'OBJC',
773 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
774 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
775 'ccer' => 'OBJC',
776 'compiler' => 'OBJCCOMPILE',
777 'compile_flag' => '-c',
778 'output_flag' => '-o',
779 'lder' => 'OBJCLD',
780 'ld' => '$(OBJC)',
781 'pure' => 1,
782 'extensions' => ['.m']);
784 # Unified Parallel C.
785 register_language ('name' => 'upc',
786 'Name' => 'Unified Parallel C',
787 'config_vars' => ['UPC'],
788 'linker' => 'UPCLINK',
789 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
790 'autodep' => 'UPC',
791 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
792 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
793 'ccer' => 'UPC',
794 'compiler' => 'UPCCOMPILE',
795 'compile_flag' => '-c',
796 'output_flag' => '-o',
797 'lder' => 'UPCLD',
798 'ld' => '$(UPC)',
799 'pure' => 1,
800 'extensions' => ['.upc']);
802 # Headers.
803 register_language ('name' => 'header',
804 'Name' => 'Header',
805 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
806 '.hpp', '.inc'],
807 # No output.
808 'output_extensions' => sub { return () },
809 # Nothing to do.
810 '_finish' => sub { });
812 # Yacc (C & C++).
813 register_language ('name' => 'yacc',
814 'Name' => 'Yacc',
815 'config_vars' => ['YACC'],
816 'flags' => ['YFLAGS'],
817 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
818 'ccer' => 'YACC',
819 'compiler' => 'YACCCOMPILE',
820 'extensions' => ['.y'],
821 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
822 return ($ext,) },
823 'rule_file' => 'yacc',
824 '_finish' => \&lang_yacc_finish,
825 '_target_hook' => \&lang_yacc_target_hook,
826 'nodist_specific' => 1);
827 register_language ('name' => 'yaccxx',
828 'Name' => 'Yacc (C++)',
829 'config_vars' => ['YACC'],
830 'rule_file' => 'yacc',
831 'flags' => ['YFLAGS'],
832 'ccer' => 'YACC',
833 'compiler' => 'YACCCOMPILE',
834 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
835 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
836 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
837 return ($ext,) },
838 '_finish' => \&lang_yacc_finish,
839 '_target_hook' => \&lang_yacc_target_hook,
840 'nodist_specific' => 1);
842 # Lex (C & C++).
843 register_language ('name' => 'lex',
844 'Name' => 'Lex',
845 'config_vars' => ['LEX'],
846 'rule_file' => 'lex',
847 'flags' => ['LFLAGS'],
848 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
849 'ccer' => 'LEX',
850 'compiler' => 'LEXCOMPILE',
851 'extensions' => ['.l'],
852 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
853 return ($ext,) },
854 '_finish' => \&lang_lex_finish,
855 '_target_hook' => \&lang_lex_target_hook,
856 'nodist_specific' => 1);
857 register_language ('name' => 'lexxx',
858 'Name' => 'Lex (C++)',
859 'config_vars' => ['LEX'],
860 'rule_file' => 'lex',
861 'flags' => ['LFLAGS'],
862 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
863 'ccer' => 'LEX',
864 'compiler' => 'LEXCOMPILE',
865 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
866 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
867 return ($ext,) },
868 '_finish' => \&lang_lex_finish,
869 '_target_hook' => \&lang_lex_target_hook,
870 'nodist_specific' => 1);
872 # Assembler.
873 register_language ('name' => 'asm',
874 'Name' => 'Assembler',
875 'config_vars' => ['CCAS', 'CCASFLAGS'],
877 'flags' => ['CCASFLAGS'],
878 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
879 # or anything else required. They can also set CCAS.
880 # Or simply use Preprocessed Assembler.
881 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
882 'ccer' => 'CCAS',
883 'compiler' => 'CCASCOMPILE',
884 'compile_flag' => '-c',
885 'output_flag' => '-o',
886 'extensions' => ['.s'],
888 # With assembly we still use the C linker.
889 '_finish' => \&lang_c_finish);
891 # Preprocessed Assembler.
892 register_language ('name' => 'cppasm',
893 'Name' => 'Preprocessed Assembler',
894 'config_vars' => ['CCAS', 'CCASFLAGS'],
896 'autodep' => 'CCAS',
897 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
898 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
899 'ccer' => 'CPPAS',
900 'compiler' => 'CPPASCOMPILE',
901 'compile_flag' => '-c',
902 'output_flag' => '-o',
903 'extensions' => ['.S', '.sx'],
905 # With assembly we still use the C linker.
906 '_finish' => \&lang_c_finish);
908 # Fortran 77
909 register_language ('name' => 'f77',
910 'Name' => 'Fortran 77',
911 'config_vars' => ['F77'],
912 'linker' => 'F77LINK',
913 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
914 'flags' => ['FFLAGS'],
915 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
916 'ccer' => 'F77',
917 'compiler' => 'F77COMPILE',
918 'compile_flag' => '-c',
919 'output_flag' => '-o',
920 'libtool_tag' => 'F77',
921 'lder' => 'F77LD',
922 'ld' => '$(F77)',
923 'pure' => 1,
924 'extensions' => ['.f', '.for']);
926 # Fortran
927 register_language ('name' => 'fc',
928 'Name' => 'Fortran',
929 'config_vars' => ['FC'],
930 'linker' => 'FCLINK',
931 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
932 'flags' => ['FCFLAGS'],
933 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
934 'ccer' => 'FC',
935 'compiler' => 'FCCOMPILE',
936 'compile_flag' => '-c',
937 'output_flag' => '-o',
938 'libtool_tag' => 'FC',
939 'lder' => 'FCLD',
940 'ld' => '$(FC)',
941 'pure' => 1,
942 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
944 # Preprocessed Fortran
945 register_language ('name' => 'ppfc',
946 'Name' => 'Preprocessed Fortran',
947 'config_vars' => ['FC'],
948 'linker' => 'FCLINK',
949 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
950 'lder' => 'FCLD',
951 'ld' => '$(FC)',
952 'flags' => ['FCFLAGS', 'CPPFLAGS'],
953 'ccer' => 'PPFC',
954 'compiler' => 'PPFCCOMPILE',
955 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
956 'compile_flag' => '-c',
957 'output_flag' => '-o',
958 'libtool_tag' => 'FC',
959 'pure' => 1,
960 'extensions' => ['.F90','.F95', '.F03', '.F08']);
962 # Preprocessed Fortran 77
963 #
964 # The current support for preprocessing Fortran 77 just involves
965 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
966 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
967 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
968 # for `make' Version 3.76 Beta' (specifically, from info file
969 # `(make)Catalogue of Rules').
970 #
971 # A better approach would be to write an Autoconf test
972 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
973 # Fortran 77 compilers know how to do preprocessing. The Autoconf
974 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
975 # preprocessing capabilities, and then fall back on cpp (if cpp were
976 # available).
977 register_language ('name' => 'ppf77',
978 'Name' => 'Preprocessed Fortran 77',
979 'config_vars' => ['F77'],
980 'linker' => 'F77LINK',
981 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
982 'lder' => 'F77LD',
983 'ld' => '$(F77)',
984 'flags' => ['FFLAGS', 'CPPFLAGS'],
985 'ccer' => 'PPF77',
986 'compiler' => 'PPF77COMPILE',
987 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
988 'compile_flag' => '-c',
989 'output_flag' => '-o',
990 'libtool_tag' => 'F77',
991 'pure' => 1,
992 'extensions' => ['.F']);
994 # Ratfor.
995 register_language ('name' => 'ratfor',
996 'Name' => 'Ratfor',
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' => ['RFLAGS', 'FFLAGS'],
1003 # FIXME also FFLAGS.
1004 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1005 'ccer' => 'F77',
1006 'compiler' => 'RCOMPILE',
1007 'compile_flag' => '-c',
1008 'output_flag' => '-o',
1009 'libtool_tag' => 'F77',
1010 'pure' => 1,
1011 'extensions' => ['.r']);
1013 # Java via gcj.
1014 register_language ('name' => 'java',
1015 'Name' => 'Java',
1016 'config_vars' => ['GCJ'],
1017 'linker' => 'GCJLINK',
1018 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1019 'autodep' => 'GCJ',
1020 'flags' => ['GCJFLAGS'],
1021 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1022 'ccer' => 'GCJ',
1023 'compiler' => 'GCJCOMPILE',
1024 'compile_flag' => '-c',
1025 'output_flag' => '-o',
1026 'libtool_tag' => 'GCJ',
1027 'lder' => 'GCJLD',
1028 'ld' => '$(GCJ)',
1029 'pure' => 1,
1030 'extensions' => ['.java', '.class', '.zip', '.jar']);
1032 ################################################################
1034 # Error reporting functions.
1036 # err_am ($MESSAGE, [%OPTIONS])
1037 # -----------------------------
1038 # Uncategorized errors about the current Makefile.am.
1039 sub err_am ($;%)
1040 {
1041 msg_am ('error', @_);
1042 }
1044 # err_ac ($MESSAGE, [%OPTIONS])
1045 # -----------------------------
1046 # Uncategorized errors about configure.ac.
1047 sub err_ac ($;%)
1048 {
1049 msg_ac ('error', @_);
1050 }
1052 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1053 # ---------------------------------------
1054 # Messages about about the current Makefile.am.
1055 sub msg_am ($$;%)
1056 {
1057 my ($channel, $msg, %opts) = @_;
1058 msg $channel, "${am_file}.am", $msg, %opts;
1059 }
1061 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1062 # ---------------------------------------
1063 # Messages about about configure.ac.
1064 sub msg_ac ($$;%)
1065 {
1066 my ($channel, $msg, %opts) = @_;
1067 msg $channel, $configure_ac, $msg, %opts;
1068 }
1070 ################################################################
1072 # subst ($TEXT)
1073 # -------------
1074 # Return a configure-style substitution using the indicated text.
1075 # We do this to avoid having the substitutions directly in automake.in;
1076 # when we do that they are sometimes removed and this causes confusion
1077 # and bugs.
1078 sub subst ($)
1079 {
1080 my ($text) = @_;
1081 return '@' . $text . '@';
1082 }
1084 ################################################################
1087 # $BACKPATH
1088 # &backname ($REL-DIR)
1089 # --------------------
1090 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1091 # For instance `src/foo' => `../..'.
1092 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1093 sub backname ($)
1094 {
1095 my ($file) = @_;
1096 my @res;
1097 foreach (split (/\//, $file))
1098 {
1099 next if $_ eq '.' || $_ eq '';
1100 if ($_ eq '..')
1101 {
1102 pop @res
1103 or prog_error ("trying to reverse path `$file' pointing outside tree");
1104 }
1105 else
1106 {
1107 push (@res, '..');
1108 }
1109 }
1110 return join ('/', @res) || '.';
1111 }
1113 ################################################################
1115 # `silent-rules' mode handling functions.
1117 # verbose_var (NAME)
1118 # ------------------
1119 # The public variable stem used to implement `silent-rules'.
1120 sub verbose_var ($)
1121 {
1122 my ($name) = @_;
1123 return 'AM_V_' . $name;
1124 }
1126 # verbose_private_var (NAME)
1127 # --------------------------
1128 # The naming policy for the private variables for `silent-rules'.
1129 sub verbose_private_var ($)
1130 {
1131 my ($name) = @_;
1132 return 'am__v_' . $name;
1133 }
1135 # define_verbose_var (NAME, VAL)
1136 # ------------------------------
1137 # For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1138 sub define_verbose_var ($$)
1139 {
1140 my ($name, $val) = @_;
1141 my $var = verbose_var ($name);
1142 my $pvar = verbose_private_var ($name);
1143 if (option 'silent-rules')
1144 {
1145 # Using `$V' instead of `$(V)' breaks IRIX make.
1146 define_variable ($var, '$(' . $pvar . '_$(V))', INTERNAL);
1147 define_variable ($pvar . '_', $val, INTERNAL);
1148 define_variable ($pvar . '_0', $val, INTERNAL);
1149 }
1150 }
1152 # Above should not be needed in the general automake code.
1154 # verbose_flag (NAME)
1155 # -------------------
1156 # Contents of %VERBOSE%: variable to expand before rule command.
1157 sub verbose_flag ($)
1158 {
1159 my ($name) = @_;
1160 return '$(' . verbose_var ($name) . ')'
1161 if (option 'silent-rules');
1162 return '';
1163 }
1165 # silent_flag
1166 # -----------
1167 # Contents of %SILENT%: variable to expand to `@' when silent.
1168 sub silent_flag ()
1169 {
1170 return verbose_flag ('at');
1171 }
1173 # define_verbose_tagvar (NAME)
1174 # ----------------------------
1175 # Engage the needed `silent-rules' machinery for tag NAME.
1176 sub define_verbose_tagvar ($)
1177 {
1178 my ($name) = @_;
1179 if (option 'silent-rules')
1180 {
1181 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1182 define_verbose_var ('at', '@');
1183 }
1184 }
1186 # define_verbose_libtool
1187 # ----------------------
1188 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1189 sub define_verbose_libtool ()
1190 {
1191 define_verbose_var ('lt', '--silent');
1192 return verbose_flag ('lt');
1193 }
1196 ################################################################
1199 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1200 sub handle_options
1201 {
1202 my $var = var ('AUTOMAKE_OPTIONS');
1203 if ($var)
1204 {
1205 if ($var->has_conditional_contents)
1206 {
1207 msg_var ('unsupported', $var,
1208 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1209 }
1210 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1211 location => 1))
1212 {
1213 my ($loc, $value) = @$locvals;
1214 return 1 if (process_option_list ($loc, $value))
1215 }
1216 }
1218 # Override portability-recursive warning.
1219 switch_warning ('no-portability-recursive')
1220 if option 'silent-rules';
1222 if ($strictness == GNITS)
1223 {
1224 set_option ('readme-alpha', INTERNAL);
1225 set_option ('std-options', INTERNAL);
1226 set_option ('check-news', INTERNAL);
1227 }
1229 return 0;
1230 }
1232 # shadow_unconditionally ($varname, $where)
1233 # -----------------------------------------
1234 # Return a $(variable) that contains all possible values
1235 # $varname can take.
1236 # If the VAR wasn't defined conditionally, return $(VAR).
1237 # Otherwise we create a am__VAR_DIST variable which contains
1238 # all possible values, and return $(am__VAR_DIST).
1239 sub shadow_unconditionally ($$)
1240 {
1241 my ($varname, $where) = @_;
1242 my $var = var $varname;
1243 if ($var->has_conditional_contents)
1244 {
1245 $varname = "am__${varname}_DIST";
1246 my @files = uniq ($var->value_as_list_recursive);
1247 define_pretty_variable ($varname, TRUE, $where, @files);
1248 }
1249 return "\$($varname)"
1250 }
1252 # get_object_extension ($EXTENSION)
1253 # ---------------------------------
1254 # Prefix $EXTENSION with $U if ansi2knr is in use.
1255 sub get_object_extension ($)
1256 {
1257 my ($extension) = @_;
1259 # Check for automatic de-ANSI-fication.
1260 $extension = '$U' . $extension
1261 if option 'ansi2knr';
1263 $get_object_extension_was_run = 1;
1265 return $extension;
1266 }
1268 # check_user_variables (@LIST)
1269 # ----------------------------
1270 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1271 # otherwise.
1272 sub check_user_variables (@)
1273 {
1274 my @dont_override = @_;
1275 foreach my $flag (@dont_override)
1276 {
1277 my $var = var $flag;
1278 if ($var)
1279 {
1280 for my $cond ($var->conditions->conds)
1281 {
1282 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1283 {
1284 msg_cond_var ('gnu', $cond, $flag,
1285 "`$flag' is a user variable, "
1286 . "you should not override it;\n"
1287 . "use `AM_$flag' instead.");
1288 }
1289 }
1290 }
1291 }
1292 }
1294 # Call finish function for each language that was used.
1295 sub handle_languages
1296 {
1297 if (! option 'no-dependencies')
1298 {
1299 # Include auto-dep code. Don't include it if DEP_FILES would
1300 # be empty.
1301 if (&saw_sources_p (0) && keys %dep_files)
1302 {
1303 # Set location of depcomp.
1304 &define_variable ('depcomp',
1305 "\$(SHELL) $am_config_aux_dir/depcomp",
1306 INTERNAL);
1307 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1309 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1311 my @deplist = sort keys %dep_files;
1312 # Generate each `include' individually. Irix 6 make will
1313 # not properly include several files resulting from a
1314 # variable expansion; generating many separate includes
1315 # seems safest.
1316 $output_rules .= "\n";
1317 foreach my $iter (@deplist)
1318 {
1319 $output_rules .= (subst ('AMDEP_TRUE')
1320 . subst ('am__include')
1321 . ' '
1322 . subst ('am__quote')
1323 . $iter
1324 . subst ('am__quote')
1325 . "\n");
1326 }
1328 # Compute the set of directories to remove in distclean-depend.
1329 my @depdirs = uniq (map { dirname ($_) } @deplist);
1330 $output_rules .= &file_contents ('depend',
1331 new Automake::Location,
1332 DEPDIRS => "@depdirs");
1333 }
1334 }
1335 else
1336 {
1337 &define_variable ('depcomp', '', INTERNAL);
1338 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1339 }
1341 my %done;
1343 # Is the c linker needed?
1344 my $needs_c = 0;
1345 foreach my $ext (sort keys %extension_seen)
1346 {
1347 next unless $extension_map{$ext};
1349 my $lang = $languages{$extension_map{$ext}};
1351 my $rule_file = $lang->rule_file || 'depend2';
1353 # Get information on $LANG.
1354 my $pfx = $lang->autodep;
1355 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1357 my ($AMDEP, $FASTDEP) =
1358 (option 'no-dependencies' || $lang->autodep eq 'no')
1359 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1361 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1362 my $silent = silent_flag ();
1364 my %transform = ('EXT' => $ext,
1365 'PFX' => $pfx,
1366 'FPFX' => $fpfx,
1367 'AMDEP' => $AMDEP,
1368 'FASTDEP' => $FASTDEP,
1369 '-c' => $lang->compile_flag || '',
1370 # These are not used, but they need to be defined
1371 # so &transform do not complain.
1372 SUBDIROBJ => 0,
1373 'DERIVED-EXT' => 'BUG',
1374 DIST_SOURCE => 1,
1375 VERBOSE => $verbose,
1376 SILENT => $silent,
1377 );
1379 # Generate the appropriate rules for this extension.
1380 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1381 || defined $lang->compile)
1382 {
1383 # Some C compilers don't support -c -o. Use it only if really
1384 # needed.
1385 my $output_flag = $lang->output_flag || '';
1386 $output_flag = '-o'
1387 if (! $output_flag
1388 && $lang->name eq 'c'
1389 && option 'subdir-objects');
1391 # Compute a possible derived extension.
1392 # This is not used by depend2.am.
1393 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1395 # When we output an inference rule like `.c.o:' we
1396 # have two cases to consider: either subdir-objects
1397 # is used, or it is not.
1398 #
1399 # In the latter case the rule is used to build objects
1400 # in the current directory, and dependencies always
1401 # go into `./$(DEPDIR)/'. We can hard-code this value.
1402 #
1403 # In the former case the rule can be used to build
1404 # objects in sub-directories too. Dependencies should
1405 # go into the appropriate sub-directories, e.g.,
1406 # `sub/$(DEPDIR)/'. The value of this directory
1407 # needs to be computed on-the-fly.
1408 #
1409 # DEPBASE holds the name of this directory, plus the
1410 # basename part of the object file (extensions Po, TPo,
1411 # Plo, TPlo will be added later as appropriate). It is
1412 # either hardcoded, or a shell variable (`$depbase') that
1413 # will be computed by the rule.
1414 my $depbase =
1415 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1416 $output_rules .=
1417 file_contents ($rule_file,
1418 new Automake::Location,
1419 %transform,
1420 GENERIC => 1,
1422 'DERIVED-EXT' => $der_ext,
1424 DEPBASE => $depbase,
1425 BASE => '$*',
1426 SOURCE => '$<',
1427 SOURCEFLAG => $sourceflags{$ext} || '',
1428 OBJ => '$@',
1429 OBJOBJ => '$@',
1430 LTOBJ => '$@',
1432 COMPILE => '$(' . $lang->compiler . ')',
1433 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1434 -o => $output_flag,
1435 SUBDIROBJ => !! option 'subdir-objects');
1436 }
1438 # Now include code for each specially handled object with this
1439 # language.
1440 my %seen_files = ();
1441 foreach my $file (@{$lang_specific_files{$lang->name}})
1442 {
1443 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1445 # We might see a given object twice, for instance if it is
1446 # used under different conditions.
1447 next if defined $seen_files{$obj};
1448 $seen_files{$obj} = 1;
1450 prog_error ("found " . $lang->name .
1451 " in handle_languages, but compiler not defined")
1452 unless defined $lang->compile;
1454 my $obj_compile = $lang->compile;
1456 # Rewrite each occurrence of `AM_$flag' in the compile
1457 # rule into `${derived}_$flag' if it exists.
1458 for my $flag (@{$lang->flags})
1459 {
1460 my $val = "${derived}_$flag";
1461 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1462 if set_seen ($val);
1463 }
1465 my $libtool_tag = '';
1466 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1467 {
1468 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1469 }
1471 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1472 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1474 my $ltverbose = define_verbose_libtool ();
1475 my $obj_ltcompile =
1476 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1477 . "--mode=compile $obj_compile";
1479 # We _need_ `-o' for per object rules.
1480 my $output_flag = $lang->output_flag || '-o';
1482 my $depbase = dirname ($obj);
1483 $depbase = ''
1484 if $depbase eq '.';
1485 $depbase .= '/'
1486 unless $depbase eq '';
1487 $depbase .= '$(DEPDIR)/' . basename ($obj);
1489 # Support for deansified files in subdirectories is ugly
1490 # enough to deserve an explanation.
1491 #
1492 # A Note about normal ansi2knr processing first. On
1493 #
1494 # AUTOMAKE_OPTIONS = ansi2knr
1495 # bin_PROGRAMS = foo
1496 # foo_SOURCES = foo.c
1497 #
1498 # we generate rules similar to:
1499 #
1500 # foo: foo$U.o; link ...
1501 # foo$U.o: foo$U.c; compile ...
1502 # foo_.c: foo.c; ansi2knr ...
1503 #
1504 # this is fairly compact, and will call ansi2knr depending
1505 # on the value of $U (`' or `_').
1506 #
1507 # It's harder with subdir sources. On
1508 #
1509 # AUTOMAKE_OPTIONS = ansi2knr
1510 # bin_PROGRAMS = foo
1511 # foo_SOURCES = sub/foo.c
1512 #
1513 # we have to create foo_.c in the current directory.
1514 # (Unless the user asks 'subdir-objects'.) This is important
1515 # in case the same file (`foo.c') is compiled from other
1516 # directories with different cpp options: foo_.c would
1517 # be preprocessed for only one set of options if it were
1518 # put in the subdirectory.
1519 #
1520 # Because foo$U.o must be built from either foo_.c or
1521 # sub/foo.c we can't be as concise as in the first example.
1522 # Instead we output
1523 #
1524 # foo: foo$U.o; link ...
1525 # foo_.o: foo_.c; compile ...
1526 # foo.o: sub/foo.c; compile ...
1527 # foo_.c: foo.c; ansi2knr ...
1528 #
1529 # This is why we'll now transform $rule_file twice
1530 # if we detect this case.
1531 # A first time we output the compile rule with `$U'
1532 # replaced by `_' and the source directory removed,
1533 # and another time we simply remove `$U'.
1534 #
1535 # Note that at this point $source (as computed by
1536 # &handle_single_transform) is `sub/foo$U.c'.
1537 # This can be confusing: it can be used as-is when
1538 # subdir-objects is set, otherwise you have to know
1539 # it really means `foo_.c' or `sub/foo.c'.
1540 my $objdir = dirname ($obj);
1541 my $srcdir = dirname ($source);
1542 if ($lang->ansi && $obj =~ /\$U/)
1543 {
1544 prog_error "`$obj' contains \$U, but `$source' doesn't."
1545 if $source !~ /\$U/;
1547 (my $source_ = $source) =~ s/\$U/_/g;
1548 # Output an additional rule if _.c and .c are not in
1549 # the same directory. (_.c is always in $objdir.)
1550 if ($objdir ne $srcdir)
1551 {
1552 (my $obj_ = $obj) =~ s/\$U/_/g;
1553 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1554 $source_ = basename ($source_);
1556 $output_rules .=
1557 file_contents ($rule_file,
1558 new Automake::Location,
1559 %transform,
1560 GENERIC => 0,
1562 DEPBASE => $depbase_,
1563 BASE => $obj_,
1564 SOURCE => $source_,
1565 SOURCEFLAG => $sourceflags{$srcext} || '',
1566 OBJ => "$obj_$myext",
1567 OBJOBJ => "$obj_.obj",
1568 LTOBJ => "$obj_.lo",
1570 COMPILE => $obj_compile,
1571 LTCOMPILE => $obj_ltcompile,
1572 -o => $output_flag,
1573 %file_transform);
1574 $obj =~ s/\$U//g;
1575 $depbase =~ s/\$U//g;
1576 $source =~ s/\$U//g;
1577 }
1578 }
1580 $output_rules .=
1581 file_contents ($rule_file,
1582 new Automake::Location,
1583 %transform,
1584 GENERIC => 0,
1586 DEPBASE => $depbase,
1587 BASE => $obj,
1588 SOURCE => $source,
1589 SOURCEFLAG => $sourceflags{$srcext} || '',
1590 # Use $myext and not `.o' here, in case
1591 # we are actually building a new source
1592 # file -- e.g. via yacc.
1593 OBJ => "$obj$myext",
1594 OBJOBJ => "$obj.obj",
1595 LTOBJ => "$obj.lo",
1597 VERBOSE => $verbose,
1598 SILENT => $silent,
1599 COMPILE => $obj_compile,
1600 LTCOMPILE => $obj_ltcompile,
1601 -o => $output_flag,
1602 %file_transform);
1603 }
1605 # The rest of the loop is done once per language.
1606 next if defined $done{$lang};
1607 $done{$lang} = 1;
1609 # Load the language dependent Makefile chunks.
1610 my %lang = map { uc ($_) => 0 } keys %languages;
1611 $lang{uc ($lang->name)} = 1;
1612 $output_rules .= file_contents ('lang-compile',
1613 new Automake::Location,
1614 %transform, %lang);
1616 # If the source to a program consists entirely of code from a
1617 # `pure' language, for instance C++ or Fortran 77, then we
1618 # don't need the C compiler code. However if we run into
1619 # something unusual then we do generate the C code. There are
1620 # probably corner cases here that do not work properly.
1621 # People linking Java code to Fortran code deserve pain.
1622 $needs_c ||= ! $lang->pure;
1624 define_compiler_variable ($lang)
1625 if ($lang->compile);
1627 define_linker_variable ($lang)
1628 if ($lang->link);
1630 require_variables ("$am_file.am", $lang->Name . " source seen",
1631 TRUE, @{$lang->config_vars});
1633 # Call the finisher.
1634 $lang->finish;
1636 # Flags listed in `->flags' are user variables (per GNU Standards),
1637 # they should not be overridden in the Makefile...
1638 my @dont_override = @{$lang->flags};
1639 # ... and so is LDFLAGS.
1640 push @dont_override, 'LDFLAGS' if $lang->link;
1642 check_user_variables @dont_override;
1643 }
1645 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1646 # suffix rule was learned), don't bother with the C stuff. But if
1647 # anything else creeps in, then use it.
1648 $needs_c = 1
1649 if $need_link || suffix_rules_count > 1;
1651 if ($needs_c)
1652 {
1653 &define_compiler_variable ($languages{'c'})
1654 unless defined $done{$languages{'c'}};
1655 define_linker_variable ($languages{'c'});
1656 }
1658 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1659 define_verbose_tagvar ('GEN');
1660 }
1663 # append_exeext { PREDICATE } $MACRO
1664 # ----------------------------------
1665 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1666 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1667 # ignored.
1668 #
1669 # This is typically used on all filenames of *_PROGRAMS, and filenames
1670 # of TESTS that are programs.
1671 sub append_exeext (&$)
1672 {
1673 my ($pred, $macro) = @_;
1675 transform_variable_recursively
1676 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1677 sub {
1678 my ($subvar, $val, $cond, $full_cond) = @_;
1679 # Append $(EXEEXT) unless the user did it already, or it's a
1680 # @substitution@.
1681 $val .= '$(EXEEXT)'
1682 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1683 return $val;
1684 });
1685 }
1688 # Check to make sure a source defined in LIBOBJS is not explicitly
1689 # mentioned. This is a separate function (as opposed to being inlined
1690 # in handle_source_transform) because it isn't always appropriate to
1691 # do this check.
1692 sub check_libobjs_sources
1693 {
1694 my ($one_file, $unxformed) = @_;
1696 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1697 'dist_EXTRA_', 'nodist_EXTRA_')
1698 {
1699 my @files;
1700 my $varname = $prefix . $one_file . '_SOURCES';
1701 my $var = var ($varname);
1702 if ($var)
1703 {
1704 @files = $var->value_as_list_recursive;
1705 }
1706 elsif ($prefix eq '')
1707 {
1708 @files = ($unxformed . '.c');
1709 }
1710 else
1711 {
1712 next;
1713 }
1715 foreach my $file (@files)
1716 {
1717 err_var ($prefix . $one_file . '_SOURCES',
1718 "automatically discovered file `$file' should not" .
1719 " be explicitly mentioned")
1720 if defined $libsources{$file};
1721 }
1722 }
1723 }
1726 # @OBJECTS
1727 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1728 # -----------------------------------------------------------------------------
1729 # Does much of the actual work for handle_source_transform.
1730 # Arguments are:
1731 # $VAR is the name of the variable that the source filenames come from
1732 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1733 # $DERIVED is the name of resulting executable or library
1734 # $OBJ is the object extension (e.g., `$U.lo')
1735 # $FILE the source file to transform
1736 # %TRANSFORM contains extras arguments to pass to file_contents
1737 # when producing explicit rules
1738 # Result is a list of the names of objects
1739 # %linkers_used will be updated with any linkers needed
1740 sub handle_single_transform ($$$$$%)
1741 {
1742 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1743 my @files = ($_file);
1744 my @result = ();
1745 my $nonansi_obj = $obj;
1746 $nonansi_obj =~ s/\$U//g;
1748 # Turn sources into objects. We use a while loop like this
1749 # because we might add to @files in the loop.
1750 while (scalar @files > 0)
1751 {
1752 $_ = shift @files;
1754 # Configure substitutions in _SOURCES variables are errors.
1755 if (/^\@.*\@$/)
1756 {
1757 my $parent_msg = '';
1758 $parent_msg = "\nand is referred to from `$topparent'"
1759 if $topparent ne $var->name;
1760 err_var ($var,
1761 "`" . $var->name . "' includes configure substitution `$_'"
1762 . $parent_msg . ";\nconfigure " .
1763 "substitutions are not allowed in _SOURCES variables");
1764 next;
1765 }
1767 # If the source file is in a subdirectory then the `.o' is put
1768 # into the current directory, unless the subdir-objects option
1769 # is in effect.
1771 # Split file name into base and extension.
1772 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1773 my $full = $_;
1774 my $directory = $1 || '';
1775 my $base = $2;
1776 my $extension = $3;
1778 # We must generate a rule for the object if it requires its own flags.
1779 my $renamed = 0;
1780 my ($linker, $object);
1782 # This records whether we've seen a derived source file (e.g.
1783 # yacc output).
1784 my $derived_source = 0;
1786 # This holds the `aggregate context' of the file we are
1787 # currently examining. If the file is compiled with
1788 # per-object flags, then it will be the name of the object.
1789 # Otherwise it will be `AM'. This is used by the target hook
1790 # language function.
1791 my $aggregate = 'AM';
1793 $extension = &derive_suffix ($extension, $nonansi_obj);
1794 my $lang;
1795 if ($extension_map{$extension} &&
1796 ($lang = $languages{$extension_map{$extension}}))
1797 {
1798 # Found the language, so see what it says.
1799 &saw_extension ($extension);
1801 # Do we have per-executable flags for this executable?
1802 my $have_per_exec_flags = 0;
1803 my @peflags = @{$lang->flags};
1804 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1805 foreach my $flag (@peflags)
1806 {
1807 if (set_seen ("${derived}_$flag"))
1808 {
1809 $have_per_exec_flags = 1;
1810 last;
1811 }
1812 }
1814 # Note: computed subr call. The language rewrite function
1815 # should return one of the LANG_* constants. It could
1816 # also return a list whose first value is such a constant
1817 # and whose second value is a new source extension which
1818 # should be applied. This means this particular language
1819 # generates another source file which we must then process
1820 # further.
1821 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1822 my ($r, $source_extension)
1823 = &$subr ($directory, $base, $extension,
1824 $nonansi_obj, $have_per_exec_flags, $var);
1825 # Skip this entry if we were asked not to process it.
1826 next if $r == LANG_IGNORE;
1828 # Now extract linker and other info.
1829 $linker = $lang->linker;
1831 my $this_obj_ext;
1832 if (defined $source_extension)
1833 {
1834 $this_obj_ext = $source_extension;
1835 $derived_source = 1;
1836 }
1837 elsif ($lang->ansi)
1838 {
1839 $this_obj_ext = $obj;
1840 }
1841 else
1842 {
1843 $this_obj_ext = $nonansi_obj;
1844 }
1845 $object = $base . $this_obj_ext;
1847 if ($have_per_exec_flags)
1848 {
1849 # We have a per-executable flag in effect for this
1850 # object. In this case we rewrite the object's
1851 # name to ensure it is unique.
1853 # We choose the name `DERIVED_OBJECT' to ensure
1854 # (1) uniqueness, and (2) continuity between
1855 # invocations. However, this will result in a
1856 # name that is too long for losing systems, in
1857 # some situations. So we provide _SHORTNAME to
1858 # override.
1860 my $dname = $derived;
1861 my $var = var ($derived . '_SHORTNAME');
1862 if ($var)
1863 {
1864 # FIXME: should use the same Condition as
1865 # the _SOURCES variable. But this is really
1866 # silly overkill -- nobody should have
1867 # conditional shortnames.
1868 $dname = $var->variable_value;
1869 }
1870 $object = $dname . '-' . $object;
1872 prog_error ($lang->name . " flags defined without compiler")
1873 if ! defined $lang->compile;
1875 $renamed = 1;
1876 }
1878 # If rewrite said it was ok, put the object into a
1879 # subdir.
1880 if ($r == LANG_SUBDIR && $directory ne '')
1881 {
1882 $object = $directory . '/' . $object;
1883 }
1885 # If the object file has been renamed (because per-target
1886 # flags are used) we cannot compile the file with an
1887 # inference rule: we need an explicit rule.
1888 #
1889 # If the source is in a subdirectory and the object is in
1890 # the current directory, we also need an explicit rule.
1891 #
1892 # If both source and object files are in a subdirectory
1893 # (this happens when the subdir-objects option is used),
1894 # then the inference will work.
1895 #
1896 # The latter case deserves a historical note. When the
1897 # subdir-objects option was added on 1999-04-11 it was
1898 # thought that inferences rules would work for
1899 # subdirectory objects too. Later, on 1999-11-22,
1900 # automake was changed to output explicit rules even for
1901 # subdir-objects. Nobody remembers why, but this occurred
1902 # soon after the merge of the user-dep-gen-branch so it
1903 # might be related. In late 2003 people complained about
1904 # the size of the generated Makefile.ins (libgcj, with
1905 # 2200+ subdir objects was reported to have a 9MB
1906 # Makefile), so we now rely on inference rules again.
1907 # Maybe we'll run across the same issue as in the past,
1908 # but at least this time we can document it. However since
1909 # dependency tracking has evolved it is possible that
1910 # our old problem no longer exists.
1911 # Using inference rules for subdir-objects has been tested
1912 # with GNU make, Solaris make, Ultrix make, BSD make,
1913 # HP-UX make, and OSF1 make successfully.
1914 if ($renamed
1915 || ($directory ne '' && ! option 'subdir-objects')
1916 # We must also use specific rules for a nodist_ source
1917 # if its language requests it.
1918 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1919 {
1920 my $obj_sans_ext = substr ($object, 0,
1921 - length ($this_obj_ext));
1922 my $full_ansi;
1923 if ($directory ne '')
1924 {
1925 $full_ansi = $directory . '/' . $base . $extension;
1926 }
1927 else
1928 {
1929 $full_ansi = $base . $extension;
1930 }
1932 if ($lang->ansi && option 'ansi2knr')
1933 {
1934 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1935 $obj_sans_ext .= '$U';
1936 }
1938 my @specifics = ($full_ansi, $obj_sans_ext,
1939 # Only use $this_obj_ext in the derived
1940 # source case because in the other case we
1941 # *don't* want $(OBJEXT) to appear here.
1942 ($derived_source ? $this_obj_ext : '.o'),
1943 $extension);
1945 # If we renamed the object then we want to use the
1946 # per-executable flag name. But if this is simply a
1947 # subdir build then we still want to use the AM_ flag
1948 # name.
1949 if ($renamed)
1950 {
1951 unshift @specifics, $derived;
1952 $aggregate = $derived;
1953 }
1954 else
1955 {
1956 unshift @specifics, 'AM';
1957 }
1959 # Each item on this list is a reference to a list consisting
1960 # of four values followed by additional transform flags for
1961 # file_contents. The four values are the derived flag prefix
1962 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1963 # source file, the base name of the output file, and
1964 # the extension for the object file.
1965 push (@{$lang_specific_files{$lang->name}},
1966 [@specifics, %transform]);
1967 }
1968 }
1969 elsif ($extension eq $nonansi_obj)
1970 {
1971 # This is probably the result of a direct suffix rule.
1972 # In this case we just accept the rewrite.
1973 $object = "$base$extension";
1974 $object = "$directory/$object" if $directory ne '';
1975 $linker = '';
1976 }
1977 else
1978 {
1979 # No error message here. Used to have one, but it was
1980 # very unpopular.
1981 # FIXME: we could potentially do more processing here,
1982 # perhaps treating the new extension as though it were a
1983 # new source extension (as above). This would require
1984 # more restructuring than is appropriate right now.
1985 next;
1986 }
1988 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1989 if (defined $object_map{$object}
1990 && $object_map{$object} ne $full);
1992 my $comp_val = (($object =~ /\.lo$/)
1993 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1994 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1995 if (defined $object_compilation_map{$comp_obj}
1996 && $object_compilation_map{$comp_obj} != 0
1997 # Only see the error once.
1998 && ($object_compilation_map{$comp_obj}
1999 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2000 && $object_compilation_map{$comp_obj} != $comp_val)
2001 {
2002 err_am "object `$comp_obj' created both with libtool and without";
2003 }
2004 $object_compilation_map{$comp_obj} |= $comp_val;
2006 if (defined $lang)
2007 {
2008 # Let the language do some special magic if required.
2009 $lang->target_hook ($aggregate, $object, $full, %transform);
2010 }
2012 if ($derived_source)
2013 {
2014 prog_error ($lang->name . " has automatic dependency tracking")
2015 if $lang->autodep ne 'no';
2016 # Make sure this new source file is handled next. That will
2017 # make it appear to be at the right place in the list.
2018 unshift (@files, $object);
2019 # Distribute derived sources unless the source they are
2020 # derived from is not.
2021 &push_dist_common ($object)
2022 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2023 next;
2024 }
2026 $linkers_used{$linker} = 1;
2028 push (@result, $object);
2030 if (! defined $object_map{$object})
2031 {
2032 my @dep_list = ();
2033 $object_map{$object} = $full;
2035 # If resulting object is in subdir, we need to make
2036 # sure the subdir exists at build time.
2037 if ($object =~ /\//)
2038 {
2039 # FIXME: check that $DIRECTORY is somewhere in the
2040 # project
2042 # For Java, the way we're handling it right now, a
2043 # `..' component doesn't make sense.
2044 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2045 {
2046 err_am "`$full' should not contain a `..' component";
2047 }
2049 # Make sure object is removed by `make mostlyclean'.
2050 $compile_clean_files{$object} = MOSTLY_CLEAN;
2051 # If we have a libtool object then we also must remove
2052 # the ordinary .o.
2053 if ($object =~ /\.lo$/)
2054 {
2055 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2056 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2058 # Remove any libtool object in this directory.
2059 $libtool_clean_directories{$directory} = 1;
2060 }
2062 push (@dep_list, require_build_directory ($directory));
2064 # If we're generating dependencies, we also want
2065 # to make sure that the appropriate subdir of the
2066 # .deps directory is created.
2067 push (@dep_list,
2068 require_build_directory ($directory . '/$(DEPDIR)'))
2069 unless option 'no-dependencies';
2070 }
2072 &pretty_print_rule ($object . ':', "\t", @dep_list)
2073 if scalar @dep_list > 0;
2074 }
2076 # Transform .o or $o file into .P file (for automatic
2077 # dependency code).
2078 if ($lang && $lang->autodep ne 'no')
2079 {
2080 my $depfile = $object;
2081 $depfile =~ s/\.([^.]*)$/.P$1/;
2082 $depfile =~ s/\$\(OBJEXT\)$/o/;
2083 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
2084 . basename ($depfile)} = 1;
2085 }
2086 }
2088 return @result;
2089 }
2092 # $LINKER
2093 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2094 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2095 # ---------------------------------------------------------------------------
2096 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2097 #
2098 # Arguments are:
2099 # $VAR is the name of the _SOURCES variable
2100 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2101 # it will be generated and returned).
2102 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2103 # work done to determine the linker will be).
2104 # $ONE_FILE is the canonical (transformed) name of object to build
2105 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2106 # $TOPPARENT is the _SOURCES variable being processed.
2107 # $WHERE context into which this definition is done
2108 # %TRANSFORM extra arguments to pass to file_contents when producing
2109 # rules
2110 #
2111 # Result is a pair ($LINKER, $OBJVAR):
2112 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2113 sub define_objects_from_sources ($$$$$$$%)
2114 {
2115 my ($var, $objvar, $nodefine, $one_file,
2116 $obj, $topparent, $where, %transform) = @_;
2118 my $needlinker = "";
2120 transform_variable_recursively
2121 ($var, $objvar, 'am__objects', $nodefine, $where,
2122 # The transform code to run on each filename.
2123 sub {
2124 my ($subvar, $val, $cond, $full_cond) = @_;
2125 my @trans = handle_single_transform ($subvar, $topparent,
2126 $one_file, $obj, $val,
2127 %transform);
2128 $needlinker = "true" if @trans;
2129 return @trans;
2130 });
2132 return $needlinker;
2133 }
2136 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2137 # -----------------------------------------------------------------------------
2138 # Handle SOURCE->OBJECT transform for one program or library.
2139 # Arguments are:
2140 # canonical (transformed) name of target to build
2141 # actual target of object to build
2142 # object extension (i.e., either `.o' or `$o')
2143 # location of the source variable
2144 # extra arguments to pass to file_contents when producing rules
2145 # Return the name of the linker variable that must be used.
2146 # Empty return means just use `LINK'.
2147 sub handle_source_transform ($$$$%)
2148 {
2149 # one_file is canonical name. unxformed is given name. obj is
2150 # object extension.
2151 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2153 my $linker = '';
2155 # No point in continuing if _OBJECTS is defined.
2156 return if reject_var ($one_file . '_OBJECTS',
2157 $one_file . '_OBJECTS should not be defined');
2159 my %used_pfx = ();
2160 my $needlinker;
2161 %linkers_used = ();
2162 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2163 'dist_EXTRA_', 'nodist_EXTRA_')
2164 {
2165 my $varname = $prefix . $one_file . "_SOURCES";
2166 my $var = var $varname;
2167 next unless $var;
2169 # We are going to define _OBJECTS variables using the prefix.
2170 # Then we glom them all together. So we can't use the null
2171 # prefix here as we need it later.
2172 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2174 # Keep track of which prefixes we saw.
2175 $used_pfx{$xpfx} = 1
2176 unless $prefix =~ /EXTRA_/;
2178 push @sources, "\$($varname)";
2179 push @dist_sources, shadow_unconditionally ($varname, $where)
2180 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2182 $needlinker |=
2183 define_objects_from_sources ($varname,
2184 $xpfx . $one_file . '_OBJECTS',
2185 $prefix =~ /EXTRA_/,
2186 $one_file, $obj, $varname, $where,
2187 DIST_SOURCE => ($prefix !~ /^nodist_/),
2188 %transform);
2189 }
2190 if ($needlinker)
2191 {
2192 $linker ||= &resolve_linker (%linkers_used);
2193 }
2195 my @keys = sort keys %used_pfx;
2196 if (scalar @keys == 0)
2197 {
2198 # The default source for libfoo.la is libfoo.c, but for
2199 # backward compatibility we first look at libfoo_la.c,
2200 # if no default source suffix is given.
2201 my $old_default_source = "$one_file.c";
2202 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2203 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2204 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2205 if $default_source_ext =~ /[\t ]/;
2206 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2207 if ($old_default_source ne $default_source
2208 && !$ext_var
2209 && (rule $old_default_source
2210 || rule '$(srcdir)/' . $old_default_source
2211 || rule '${srcdir}/' . $old_default_source
2212 || -f $old_default_source))
2213 {
2214 my $loc = $where->clone;
2215 $loc->pop_context;
2216 msg ('obsolete', $loc,
2217 "the default source for `$unxformed' has been changed "
2218 . "to `$default_source'.\n(Using `$old_default_source' for "
2219 . "backward compatibility.)");
2220 $default_source = $old_default_source;
2221 }
2222 # If a rule exists to build this source with a $(srcdir)
2223 # prefix, use that prefix in our variables too. This is for
2224 # the sake of BSD Make.
2225 if (rule '$(srcdir)/' . $default_source
2226 || rule '${srcdir}/' . $default_source)
2227 {
2228 $default_source = '$(srcdir)/' . $default_source;
2229 }
2231 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2232 push (@sources, $default_source);
2233 push (@dist_sources, $default_source);
2235 %linkers_used = ();
2236 my (@result) =
2237 handle_single_transform ($one_file . '_SOURCES',
2238 $one_file . '_SOURCES',
2239 $one_file, $obj,
2240 $default_source, %transform);
2241 $linker ||= &resolve_linker (%linkers_used);
2242 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2243 }
2244 else
2245 {
2246 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2247 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2248 }
2250 # If we want to use `LINK' we must make sure it is defined.
2251 if ($linker eq '')
2252 {
2253 $need_link = 1;
2254 }
2256 return $linker;
2257 }
2260 # handle_lib_objects ($XNAME, $VAR)
2261 # ---------------------------------
2262 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2263 # Also, generate _DEPENDENCIES variable if appropriate.
2264 # Arguments are:
2265 # transformed name of object being built, or empty string if no object
2266 # name of _LDADD/_LIBADD-type variable to examine
2267 # Returns 1 if LIBOBJS seen, 0 otherwise.
2268 sub handle_lib_objects
2269 {
2270 my ($xname, $varname) = @_;
2272 my $var = var ($varname);
2273 prog_error "handle_lib_objects: `$varname' undefined"
2274 unless $var;
2275 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2276 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2277 my $prefix = $1 || 'AM_';
2279 my $seen_libobjs = 0;
2280 my $flagvar = 0;
2282 transform_variable_recursively
2283 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2284 ! $xname, INTERNAL,
2285 # Transformation function, run on each filename.
2286 sub {
2287 my ($subvar, $val, $cond, $full_cond) = @_;
2289 if ($val =~ /^-/)
2290 {
2291 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2292 if ($val !~ /^-[lL]/ &&
2293 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2294 # for Libtool libraries or programs. (Actually we are a bit
2295 # laxe here since this code also applies to non-libtool
2296 # libraries or programs, for which -dlopen and -dlopreopen
2297 # are pure nonsense. Diagnosing this doesn't seem very
2298 # important: the developer will quickly get complaints from
2299 # the linker.)
2300 $val !~ /^-dl(?:pre)?open$/ &&
2301 # Only get this error once.
2302 ! $flagvar)
2303 {
2304 $flagvar = 1;
2305 # FIXME: should display a stack of nested variables
2306 # as context when $var != $subvar.
2307 err_var ($var, "linker flags such as `$val' belong in "
2308 . "`${prefix}LDFLAGS");
2309 }
2310 return ();
2311 }
2312 elsif ($val !~ /^\@.*\@$/)
2313 {
2314 # Assume we have a file of some sort, and output it into the
2315 # dependency variable. Autoconf substitutions are not output;
2316 # rarely is a new dependency substituted into e.g. foo_LDADD
2317 # -- but bad things (e.g. -lX11) are routinely substituted.
2318 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2319 # and handled specially below.
2320 return $val;
2321 }
2322 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2323 {
2324 handle_LIBOBJS ($subvar, $cond, $1);
2325 $seen_libobjs = 1;
2326 return $val;
2327 }
2328 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2329 {
2330 handle_ALLOCA ($subvar, $cond, $1);
2331 return $val;
2332 }
2333 else
2334 {
2335 return ();
2336 }
2337 });
2339 return $seen_libobjs;
2340 }
2342 # handle_LIBOBJS_or_ALLOCA ($VAR)
2343 # -------------------------------
2344 # Definitions common to LIBOBJS and ALLOCA.
2345 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2346 sub handle_LIBOBJS_or_ALLOCA ($)
2347 {
2348 my ($var) = @_;
2350 my $dir = '';
2352 # If LIBOBJS files must be built in another directory we have
2353 # to define LIBOBJDIR and ensure the files get cleaned.
2354 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2355 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2356 if ($config_libobj_dir
2357 && $relative_dir ne $config_libobj_dir)
2358 {
2359 if (option 'subdir-objects')
2360 {
2361 # In the top-level Makefile we do not use $(top_builddir), because
2362 # we are already there, and since the targets are built without
2363 # a $(top_builddir), it helps BSD Make to match them with
2364 # dependencies.
2365 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2366 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2367 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2368 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2369 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2370 # be created by libtool as a side-effect of creating LTLIBOBJS).
2371 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2372 }
2373 else
2374 {
2375 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2376 . " `subdir-objects' is not set");
2377 }
2378 }
2380 return $dir;
2381 }
2383 sub handle_LIBOBJS ($$$)
2384 {
2385 my ($var, $cond, $lt) = @_;
2386 my $myobjext = $lt ? 'lo' : 'o';
2387 $lt ||= '';
2389 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2390 if ! keys %libsources;
2392 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2394 foreach my $iter (keys %libsources)
2395 {
2396 if ($iter =~ /\.[cly]$/)
2397 {
2398 &saw_extension ($&);
2399 &saw_extension ('.c');
2400 }
2402 if ($iter =~ /\.h$/)
2403 {
2404 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2405 }
2406 elsif ($iter ne 'alloca.c')
2407 {
2408 my $rewrite = $iter;
2409 $rewrite =~ s/\.c$/.P$myobjext/;
2410 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2411 $rewrite = "^" . quotemeta ($iter) . "\$";
2412 # Only require the file if it is not a built source.
2413 my $bs = var ('BUILT_SOURCES');
2414 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2415 {
2416 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2417 }
2418 }
2419 }
2420 }
2422 sub handle_ALLOCA ($$$)
2423 {
2424 my ($var, $cond, $lt) = @_;
2425 my $myobjext = $lt ? 'lo' : 'o';
2426 $lt ||= '';
2427 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2429 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2430 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2431 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2432 &saw_extension ('.c');
2433 }
2435 # Canonicalize the input parameter
2436 sub canonicalize
2437 {
2438 my ($string) = @_;
2439 $string =~ tr/A-Za-z0-9_\@/_/c;
2440 return $string;
2441 }
2443 # Canonicalize a name, and check to make sure the non-canonical name
2444 # is never used. Returns canonical name. Arguments are name and a
2445 # list of suffixes to check for.
2446 sub check_canonical_spelling
2447 {
2448 my ($name, @suffixes) = @_;
2450 my $xname = &canonicalize ($name);
2451 if ($xname ne $name)
2452 {
2453 foreach my $xt (@suffixes)
2454 {
2455 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2456 }
2457 }
2459 return $xname;
2460 }
2463 # handle_compile ()
2464 # -----------------
2465 # Set up the compile suite.
2466 sub handle_compile ()
2467 {
2468 return
2469 unless $get_object_extension_was_run;
2471 # Boilerplate.
2472 my $default_includes = '';
2473 if (! option 'nostdinc')
2474 {
2475 my @incs = ('-I.', subst ('am__isrc'));
2477 my $var = var 'CONFIG_HEADER';
2478 if ($var)
2479 {
2480 foreach my $hdr (split (' ', $var->variable_value))
2481 {
2482 push @incs, '-I' . dirname ($hdr);
2483 }
2484 }
2485 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2486 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2487 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2488 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2489 # to just put @am__isrc@ right after `-I.', without a space.
2490 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2491 }
2493 my (@mostly_rms, @dist_rms);
2494 foreach my $item (sort keys %compile_clean_files)
2495 {
2496 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2497 {
2498 push (@mostly_rms, "\t-rm -f $item");
2499 }
2500 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2501 {
2502 push (@dist_rms, "\t-rm -f $item");
2503 }
2504 else
2505 {
2506 prog_error 'invalid entry in %compile_clean_files';
2507 }
2508 }
2510 my ($coms, $vars, $rules) =
2511 &file_contents_internal (1, "$libdir/am/compile.am",
2512 new Automake::Location,
2513 ('DEFAULT_INCLUDES' => $default_includes,
2514 'MOSTLYRMS' => join ("\n", @mostly_rms),
2515 'DISTRMS' => join ("\n", @dist_rms)));
2516 $output_vars .= $vars;
2517 $output_rules .= "$coms$rules";
2519 # Check for automatic de-ANSI-fication.
2520 if (option 'ansi2knr')
2521 {
2522 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2523 my $ansi2knr_dir = '';
2525 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2526 TRUE, "ANSI2KNR", "U");
2528 # topdir is where ansi2knr should be.
2529 if ($ansi2knr_filename eq 'ansi2knr')
2530 {
2531 # Only require ansi2knr files if they should appear in
2532 # this directory.
2533 require_file ($ansi2knr_where, FOREIGN,
2534 'ansi2knr.c', 'ansi2knr.1');
2536 # ansi2knr needs to be built before subdirs, so unshift it.
2537 unshift (@all, '$(ANSI2KNR)');
2538 }
2539 else
2540 {
2541 $ansi2knr_dir = dirname ($ansi2knr_filename);
2542 }
2544 $output_rules .= &file_contents ('ansi2knr',
2545 new Automake::Location,
2546 'ANSI2KNR-DIR' => $ansi2knr_dir);
2548 }
2549 }
2551 # handle_libtool ()
2552 # -----------------
2553 # Handle libtool rules.
2554 sub handle_libtool
2555 {
2556 return unless var ('LIBTOOL');
2558 # Libtool requires some files, but only at top level.
2559 # (Starting with Libtool 2.0 we do not have to bother. These
2560 # requirements are done with AC_REQUIRE_AUX_FILE.)
2561 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2562 if $relative_dir eq '.' && ! $libtool_new_api;
2564 my @libtool_rms;
2565 foreach my $item (sort keys %libtool_clean_directories)
2566 {
2567 my $dir = ($item eq '.') ? '' : "$item/";
2568 # .libs is for Unix, _libs for DOS.
2569 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2570 }
2572 check_user_variables 'LIBTOOLFLAGS';
2574 # Output the libtool compilation rules.
2575 $output_rules .= &file_contents ('libtool',
2576 new Automake::Location,
2577 LTRMS => join ("\n", @libtool_rms));
2578 }
2580 # handle_programs ()
2581 # ------------------
2582 # Handle C programs.
2583 sub handle_programs
2584 {
2585 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2586 'bin', 'sbin', 'libexec', 'pkglib',
2587 'noinst', 'check');
2588 return if ! @proglist;
2590 my $seen_global_libobjs =
2591 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2593 foreach my $pair (@proglist)
2594 {
2595 my ($where, $one_file) = @$pair;
2597 my $seen_libobjs = 0;
2598 my $obj = get_object_extension '.$(OBJEXT)';
2600 # Strip any $(EXEEXT) suffix the user might have added, or this
2601 # will confuse &handle_source_transform and &check_canonical_spelling.
2602 # We'll add $(EXEEXT) back later anyway.
2603 $one_file =~ s/\$\(EXEEXT\)$//;
2605 $known_programs{$one_file} = $where;
2607 # Canonicalize names and check for misspellings.
2608 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2609 '_SOURCES', '_OBJECTS',
2610 '_DEPENDENCIES');
2612 $where->push_context ("while processing program `$one_file'");
2613 $where->set (INTERNAL->get);
2615 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2616 NONLIBTOOL => 1, LIBTOOL => 0);
2618 if (var ($xname . "_LDADD"))
2619 {
2620 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2621 }
2622 else
2623 {
2624 # User didn't define prog_LDADD override. So do it.
2625 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2627 # This does a bit too much work. But we need it to
2628 # generate _DEPENDENCIES when appropriate.
2629 if (var ('LDADD'))
2630 {
2631 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2632 }
2633 }
2635 reject_var ($xname . '_LIBADD',
2636 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2638 set_seen ($xname . '_DEPENDENCIES');
2639 set_seen ($xname . '_LDFLAGS');
2641 # Determine program to use for link.
2642 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2643 $vlink = verbose_flag ($vlink || 'GEN');
2645 # If the resulting program lies into a subdirectory,
2646 # make sure this directory will exist.
2647 my $dirstamp = require_build_directory_maybe ($one_file);
2649 $libtool_clean_directories{dirname ($one_file)} = 1;
2651 $output_rules .= &file_contents ('program',
2652 $where,
2653 PROGRAM => $one_file,
2654 XPROGRAM => $xname,
2655 XLINK => $xlink,
2656 VERBOSE => $vlink,
2657 DIRSTAMP => $dirstamp,
2658 EXEEXT => '$(EXEEXT)');
2660 if ($seen_libobjs || $seen_global_libobjs)
2661 {
2662 if (var ($xname . '_LDADD'))
2663 {
2664 &check_libobjs_sources ($xname, $xname . '_LDADD');
2665 }
2666 elsif (var ('LDADD'))
2667 {
2668 &check_libobjs_sources ($xname, 'LDADD');
2669 }
2670 }
2671 }
2672 }
2675 # handle_libraries ()
2676 # -------------------
2677 # Handle libraries.
2678 sub handle_libraries
2679 {
2680 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2681 'lib', 'pkglib', 'noinst', 'check');
2682 return if ! @liblist;
2684 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2685 'noinst', 'check');
2687 if (@prefix)
2688 {
2689 my $var = rvar ($prefix[0] . '_LIBRARIES');
2690 $var->requires_variables ('library used', 'RANLIB');
2691 }
2693 &define_variable ('AR', 'ar', INTERNAL);
2694 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2695 &define_verbose_tagvar ('AR');
2697 foreach my $pair (@liblist)
2698 {
2699 my ($where, $onelib) = @$pair;
2701 my $seen_libobjs = 0;
2702 # Check that the library fits the standard naming convention.
2703 my $bn = basename ($onelib);
2704 if ($bn !~ /^lib.*\.a$/)
2705 {
2706 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2707 my $suggestion = dirname ($onelib) . "/$bn";
2708 $suggestion =~ s|^\./||g;
2709 msg ('error-gnu/warn', $where,
2710 "`$onelib' is not a standard library name\n"
2711 . "did you mean `$suggestion'?")
2712 }
2714 $where->push_context ("while processing library `$onelib'");
2715 $where->set (INTERNAL->get);
2717 my $obj = get_object_extension '.$(OBJEXT)';
2719 # Canonicalize names and check for misspellings.
2720 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2721 '_OBJECTS', '_DEPENDENCIES',
2722 '_AR');
2724 if (! var ($xlib . '_AR'))
2725 {
2726 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2727 }
2729 # Generate support for conditional object inclusion in
2730 # libraries.
2731 if (var ($xlib . '_LIBADD'))
2732 {
2733 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2734 {
2735 $seen_libobjs = 1;
2736 }
2737 }
2738 else
2739 {
2740 &define_variable ($xlib . "_LIBADD", '', $where);
2741 }
2743 reject_var ($xlib . '_LDADD',
2744 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2746 # Make sure we at look at this.
2747 set_seen ($xlib . '_DEPENDENCIES');
2749 &handle_source_transform ($xlib, $onelib, $obj, $where,
2750 NONLIBTOOL => 1, LIBTOOL => 0);
2752 # If the resulting library lies into a subdirectory,
2753 # make sure this directory will exist.
2754 my $dirstamp = require_build_directory_maybe ($onelib);
2755 my $verbose = verbose_flag ('AR');
2756 my $silent = silent_flag ();
2758 $output_rules .= &file_contents ('library',
2759 $where,
2760 VERBOSE => $verbose,
2761 SILENT => $silent,
2762 LIBRARY => $onelib,
2763 XLIBRARY => $xlib,
2764 DIRSTAMP => $dirstamp);
2766 if ($seen_libobjs)
2767 {
2768 if (var ($xlib . '_LIBADD'))
2769 {
2770 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2771 }
2772 }
2773 }
2774 }
2777 # handle_ltlibraries ()
2778 # ---------------------
2779 # Handle shared libraries.
2780 sub handle_ltlibraries
2781 {
2782 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2783 'noinst', 'lib', 'pkglib', 'check');
2784 return if ! @liblist;
2786 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2787 'noinst', 'check');
2789 if (@prefix)
2790 {
2791 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2792 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2793 }
2795 my %instdirs = ();
2796 my %instsubdirs = ();
2797 my %instconds = ();
2798 my %liblocations = (); # Location (in Makefile.am) of each library.
2800 foreach my $key (@prefix)
2801 {
2802 # Get the installation directory of each library.
2803 my $dir = $key;
2804 my $strip_subdir = 1;
2805 if ($dir =~ /^nobase_/)
2806 {
2807 $dir =~ s/^nobase_//;
2808 $strip_subdir = 0;
2809 }
2810 my $var = rvar ($key . '_LTLIBRARIES');
2812 # We reject libraries which are installed in several places
2813 # in the same condition, because we can only specify one
2814 # `-rpath' option.
2815 $var->traverse_recursively
2816 (sub
2817 {
2818 my ($var, $val, $cond, $full_cond) = @_;
2819 my $hcond = $full_cond->human;
2820 my $where = $var->rdef ($cond)->location;
2821 my $ldir = '';
2822 $ldir = '/' . dirname ($val)
2823 if (!$strip_subdir);
2824 # A library cannot be installed in different directory
2825 # in overlapping conditions.
2826 if (exists $instconds{$val})
2827 {
2828 my ($msg, $acond) =
2829 $instconds{$val}->ambiguous_p ($val, $full_cond);
2831 if ($msg)
2832 {
2833 error ($where, $msg, partial => 1);
2834 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2835 $dirtxt = "built for `$dir'"
2836 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2837 my $dircond =
2838 $full_cond->true ? "" : " in condition $hcond";
2840 error ($where, "`$val' should be $dirtxt$dircond ...",
2841 partial => 1);
2843 my $hacond = $acond->human;
2844 my $adir = $instdirs{$val}{$acond};
2845 my $adirtxt = "installed in `$adir'";
2846 $adirtxt = "built for `$adir'"
2847 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2848 || $adir eq 'check');
2849 my $adircond = $acond->true ? "" : " in condition $hacond";
2851 my $onlyone = ($dir ne $adir) ?
2852 ("\nLibtool libraries can be built for only one "
2853 . "destination.") : "";
2855 error ($liblocations{$val}{$acond},
2856 "... and should also be $adirtxt$adircond.$onlyone");
2857 return;
2858 }
2859 }
2860 else
2861 {
2862 $instconds{$val} = new Automake::DisjConditions;
2863 }
2864 $instdirs{$val}{$full_cond} = $dir;
2865 $instsubdirs{$val}{$full_cond} = $ldir;
2866 $liblocations{$val}{$full_cond} = $where;
2867 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2868 },
2869 sub
2870 {
2871 return ();
2872 },
2873 skip_ac_subst => 1);
2874 }
2876 foreach my $pair (@liblist)
2877 {
2878 my ($where, $onelib) = @$pair;
2880 my $seen_libobjs = 0;
2881 my $obj = get_object_extension '.lo';
2883 # Canonicalize names and check for misspellings.
2884 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2885 '_SOURCES', '_OBJECTS',
2886 '_DEPENDENCIES');
2888 # Check that the library fits the standard naming convention.
2889 my $libname_rx = '^lib.*\.la';
2890 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2891 my $ldvar2 = var ('LDFLAGS');
2892 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2893 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2894 {
2895 # Relax name checking for libtool modules.
2896 $libname_rx = '\.la';
2897 }
2899 my $bn = basename ($onelib);
2900 if ($bn !~ /$libname_rx$/)
2901 {
2902 my $type = 'library';
2903 if ($libname_rx eq '\.la')
2904 {
2905 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2906 $type = 'module';
2907 }
2908 else
2909 {
2910 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2911 }
2912 my $suggestion = dirname ($onelib) . "/$bn";
2913 $suggestion =~ s|^\./||g;
2914 msg ('error-gnu/warn', $where,
2915 "`$onelib' is not a standard libtool $type name\n"
2916 . "did you mean `$suggestion'?")
2917 }
2919 $where->push_context ("while processing Libtool library `$onelib'");
2920 $where->set (INTERNAL->get);
2922 # Make sure we look at these.
2923 set_seen ($xlib . '_LDFLAGS');
2924 set_seen ($xlib . '_DEPENDENCIES');
2926 # Generate support for conditional object inclusion in
2927 # libraries.
2928 if (var ($xlib . '_LIBADD'))
2929 {
2930 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2931 {
2932 $seen_libobjs = 1;
2933 }
2934 }
2935 else
2936 {
2937 &define_variable ($xlib . "_LIBADD", '', $where);
2938 }
2940 reject_var ("${xlib}_LDADD",
2941 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2944 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2945 NONLIBTOOL => 0, LIBTOOL => 1);
2947 # Determine program to use for link.
2948 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2949 $vlink = verbose_flag ($vlink || 'GEN');
2951 my $rpathvar = "am_${xlib}_rpath";
2952 my $rpath = "\$($rpathvar)";
2953 foreach my $rcond ($instconds{$onelib}->conds)
2954 {
2955 my $val;
2956 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2957 || $instdirs{$onelib}{$rcond} eq 'noinst'
2958 || $instdirs{$onelib}{$rcond} eq 'check')
2959 {
2960 # It's an EXTRA_ library, so we can't specify -rpath,
2961 # because we don't know where the library will end up.
2962 # The user probably knows, but generally speaking automake
2963 # doesn't -- and in fact configure could decide
2964 # dynamically between two different locations.
2965 $val = '';
2966 }
2967 else
2968 {
2969 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2970 $val .= $instsubdirs{$onelib}{$rcond}
2971 if defined $instsubdirs{$onelib}{$rcond};
2972 }
2973 if ($rcond->true)
2974 {
2975 # If $rcond is true there is only one condition and
2976 # there is no point defining an helper variable.
2977 $rpath = $val;
2978 }
2979 else
2980 {
2981 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2982 }
2983 }
2985 # If the resulting library lies into a subdirectory,
2986 # make sure this directory will exist.
2987 my $dirstamp = require_build_directory_maybe ($onelib);
2989 # Remember to cleanup .libs/ in this directory.
2990 my $dirname = dirname $onelib;
2991 $libtool_clean_directories{$dirname} = 1;
2993 $output_rules .= &file_contents ('ltlibrary',
2994 $where,
2995 LTLIBRARY => $onelib,
2996 XLTLIBRARY => $xlib,
2997 RPATH => $rpath,
2998 XLINK => $xlink,
2999 VERBOSE => $vlink,
3000 DIRSTAMP => $dirstamp);
3001 if ($seen_libobjs)
3002 {
3003 if (var ($xlib . '_LIBADD'))
3004 {
3005 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3006 }
3007 }
3008 }
3009 }
3011 # See if any _SOURCES variable were misspelled.
3012 sub check_typos ()
3013 {
3014 # It is ok if the user sets this particular variable.
3015 set_seen 'AM_LDFLAGS';
3017 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3018 {
3019 foreach my $var (variables $primary)
3020 {
3021 my $varname = $var->name;
3022 # A configure variable is always legitimate.
3023 next if exists $configure_vars{$varname};
3025 for my $cond ($var->conditions->conds)
3026 {
3027 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3028 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3029 . " program or\nlibrary has `$1' as canonical name"
3030 . " (possible typo)")
3031 unless $var->rdef ($cond)->seen;
3032 }
3033 }
3034 }
3035 }
3038 # Handle scripts.
3039 sub handle_scripts
3040 {
3041 # NOTE we no longer automatically clean SCRIPTS, because it is
3042 # useful to sometimes distribute scripts verbatim. This happens
3043 # e.g. in Automake itself.
3044 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3045 'bin', 'sbin', 'libexec', 'pkgdata',
3046 'noinst', 'check');
3047 }
3052 ## ------------------------ ##
3053 ## Handling Texinfo files. ##
3054 ## ------------------------ ##
3056 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3057 # &scan_texinfo_file ($FILENAME)
3058 # ------------------------------
3059 # $OUTFILE - name of the info file produced by $FILENAME.
3060 # $VFILE - name of the version.texi file used (undef if none).
3061 # @CLEAN_FILES - list of byproducts (indexes etc.)
3062 sub scan_texinfo_file ($)
3063 {
3064 my ($filename) = @_;
3066 # Some of the following extensions are always created, no matter
3067 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3068 # are only created when they are used. We used to scan $FILENAME
3069 # for their use, but that is not enough: they could be used in
3070 # included files. We can't scan included files because we don't
3071 # know the include path. Therefore we always erase these files, no
3072 # matter whether they are used or not.
3073 #
3074 # (tmp is only created if an @macro is used and a certain e-TeX
3075 # feature is not available.)
3076 my %clean_suffixes =
3077 map { $_ => 1 } (qw(aux log toc tmp
3078 cp cps
3079 fn fns
3080 ky kys
3081 vr vrs
3082 tp tps
3083 pg pgs)); # grep 'new.*index' texinfo.tex
3085 my $texi = new Automake::XFile "< $filename";
3086 verb "reading $filename";
3088 my ($outfile, $vfile);
3089 while ($_ = $texi->getline)
3090 {
3091 if (/^\@setfilename +(\S+)/)
3092 {
3093 # Honor only the first @setfilename. (It's possible to have
3094 # more occurrences later if the manual shows examples of how
3095 # to use @setfilename...)
3096 next if $outfile;
3098 $outfile = $1;
3099 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3100 {
3101 error ("$filename:$.",
3102 "output `$outfile' has unrecognized extension");
3103 return;
3104 }
3105 }
3106 # A "version.texi" file is actually any file whose name matches
3107 # "vers*.texi".
3108 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3109 {
3110 $vfile = $1;
3111 }
3113 # Try to find new or unused indexes.
3115 # Creating a new category of index.
3116 elsif (/^\@def(code)?index (\w+)/)
3117 {
3118 $clean_suffixes{$2} = 1;
3119 $clean_suffixes{"$2s"} = 1;
3120 }
3122 # Merging an index into an another.
3123 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3124 {
3125 delete $clean_suffixes{"$2s"};
3126 $clean_suffixes{"$3s"} = 1;
3127 }
3129 }
3131 if (! $outfile)
3132 {
3133 err_am "`$filename' missing \@setfilename";
3134 return;
3135 }
3137 my $infobase = basename ($filename);
3138 $infobase =~ s/\.te?xi(nfo)?$//;
3139 return ($outfile, $vfile,
3140 map { "$infobase.$_" } (sort keys %clean_suffixes));
3141 }
3144 # ($DIRSTAMP, @CLEAN_FILES)
3145 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3146 # ------------------------------------------------------------------
3147 # SOURCE - the source Texinfo file
3148 # DEST - the destination Info file
3149 # INSRC - wether DEST should be built in the source tree
3150 # DEPENDENCIES - known dependencies
3151 sub output_texinfo_build_rules ($$$@)
3152 {
3153 my ($source, $dest, $insrc, @deps) = @_;
3155 # Split `a.texi' into `a' and `.texi'.
3156 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3157 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3159 $ssfx ||= "";
3160 $dsfx ||= "";
3162 # We can output two kinds of rules: the "generic" rules use Make
3163 # suffix rules and are appropriate when $source and $dest do not lie
3164 # in a sub-directory; the "specific" rules are needed in the other
3165 # case.
3166 #
3167 # The former are output only once (this is not really apparent here,
3168 # but just remember that some logic deeper in Automake will not
3169 # output the same rule twice); while the later need to be output for
3170 # each Texinfo source.
3171 my $generic;
3172 my $makeinfoflags;
3173 my $sdir = dirname $source;
3174 if ($sdir eq '.' && dirname ($dest) eq '.')
3175 {
3176 $generic = 1;
3177 $makeinfoflags = '-I $(srcdir)';
3178 }
3179 else
3180 {
3181 $generic = 0;
3182 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3183 }
3185 # A directory can contain two kinds of info files: some built in the
3186 # source tree, and some built in the build tree. The rules are
3187 # different in each case. However we cannot output two different
3188 # set of generic rules. Because in-source builds are more usual, we
3189 # use generic rules in this case and fall back to "specific" rules
3190 # for build-dir builds. (It should not be a problem to invert this
3191 # if needed.)
3192 $generic = 0 unless $insrc;
3194 # We cannot use a suffix rule to build info files with an empty
3195 # extension. Otherwise we would output a single suffix inference
3196 # rule, with separate dependencies, as in
3197 #
3198 # .texi:
3199 # $(MAKEINFO) ...
3200 # foo.info: foo.texi
3201 #
3202 # which confuse Solaris make. (See the Autoconf manual for
3203 # details.) Therefore we use a specific rule in this case. This
3204 # applies to info files only (dvi and pdf files always have an
3205 # extension).
3206 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3208 # If the resulting file lie into a subdirectory,
3209 # make sure this directory will exist.
3210 my $dirstamp = require_build_directory_maybe ($dest);
3212 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3214 $output_rules .= file_contents ('texibuild',
3215 new Automake::Location,
3216 DEPS => "@deps",
3217 DEST_PREFIX => $dpfx,
3218 DEST_INFO_PREFIX => $dipfx,
3219 DEST_SUFFIX => $dsfx,
3220 DIRSTAMP => $dirstamp,
3221 GENERIC => $generic,
3222 GENERIC_INFO => $generic_info,
3223 INSRC => $insrc,
3224 MAKEINFOFLAGS => $makeinfoflags,
3225 SOURCE => ($generic
3226 ? '$<' : $source),
3227 SOURCE_INFO => ($generic_info
3228 ? '$<' : $source),
3229 SOURCE_REAL => $source,
3230 SOURCE_SUFFIX => $ssfx,
3231 );
3232 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3233 }
3236 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3237 # handle_texinfo_helper ($info_texinfos)
3238 # --------------------------------------
3239 # Handle all Texinfo source; helper for handle_texinfo.
3240 sub handle_texinfo_helper ($)
3241 {
3242 my ($info_texinfos) = @_;
3243 my (@infobase, @info_deps_list, @texi_deps);
3244 my %versions;
3245 my $done = 0;
3246 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3248 # Build a regex matching user-cleaned files.
3249 my $d = var 'DISTCLEANFILES';
3250 my $c = var 'CLEANFILES';
3251 my @f = ();
3252 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3253 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3254 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3255 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3257 foreach my $texi
3258 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3259 {
3260 my $infobase = $texi;
3261 $infobase =~ s/\.(txi|texinfo|texi)$//;
3263 if ($infobase eq $texi)
3264 {
3265 # FIXME: report line number.
3266 err_am "texinfo file `$texi' has unrecognized extension";
3267 next;
3268 }
3270 push @infobase, $infobase;
3272 # If 'version.texi' is referenced by input file, then include
3273 # automatic versioning capability.
3274 my ($out_file, $vtexi, @clean_files) =
3275 scan_texinfo_file ("$relative_dir/$texi")
3276 or next;
3277 push (@mostly_cleans, @clean_files);
3279 # If the Texinfo source is in a subdirectory, create the
3280 # resulting info in this subdirectory. If it is in the current
3281 # directory, try hard to not prefix "./" because it breaks the
3282 # generic rules.
3283 my $outdir = dirname ($texi) . '/';
3284 $outdir = "" if $outdir eq './';
3285 $out_file = $outdir . $out_file;
3287 # Until Automake 1.6.3, .info files were built in the
3288 # source tree. This was an obstacle to the support of
3289 # non-distributed .info files, and non-distributed .texi
3290 # files.
3291 #
3292 # * Non-distributed .texi files is important in some packages
3293 # where .texi files are built at make time, probably using
3294 # other binaries built in the package itself, maybe using
3295 # tools or information found on the build host. Because
3296 # these files are not distributed they are always rebuilt
3297 # at make time; they should therefore not lie in the source
3298 # directory. One plan was to support this using
3299 # nodist_info_TEXINFOS or something similar. (Doing this
3300 # requires some sanity checks. For instance Automake should
3301 # not allow:
3302 # dist_info_TEXINFOS = foo.texi
3303 # nodist_foo_TEXINFOS = included.texi
3304 # because a distributed file should never depend on a
3305 # non-distributed file.)
3306 #
3307 # * If .texi files are not distributed, then .info files should
3308 # not be distributed either. There are also cases where one
3309 # wants to distribute .texi files, but does not want to
3310 # distribute the .info files. For instance the Texinfo package
3311 # distributes the tool used to build these files; it would
3312 # be a waste of space to distribute them. It's not clear
3313 # which syntax we should use to indicate that .info files should
3314 # not be distributed. Akim Demaille suggested that eventually
3315 # we switch to a new syntax:
3316 # | Maybe we should take some inspiration from what's already
3317 # | done in the rest of Automake. Maybe there is too much
3318 # | syntactic sugar here, and you want
3319 # | nodist_INFO = bar.info
3320 # | dist_bar_info_SOURCES = bar.texi
3321 # | bar_texi_DEPENDENCIES = foo.texi
3322 # | with a bit of magic to have bar.info represent the whole
3323 # | bar*info set. That's a lot more verbose that the current
3324 # | situation, but it is # not new, hence the user has less
3325 # | to learn.
3326 # |
3327 # | But there is still too much room for meaningless specs:
3328 # | nodist_INFO = bar.info
3329 # | dist_bar_info_SOURCES = bar.texi
3330 # | dist_PS = bar.ps something-written-by-hand.ps
3331 # | nodist_bar_ps_SOURCES = bar.texi
3332 # | bar_texi_DEPENDENCIES = foo.texi
3333 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3334 #
3335 # Back to the point, it should be clear that in order to support
3336 # non-distributed .info files, we need to build them in the
3337 # build tree, not in the source tree (non-distributed .texi
3338 # files are less of a problem, because we do not output build
3339 # rules for them). In Automake 1.7 .info build rules have been
3340 # largely cleaned up so that .info files get always build in the
3341 # build tree, even when distributed. The idea was that
3342 # (1) if during a VPATH build the .info file was found to be
3343 # absent or out-of-date (in the source tree or in the
3344 # build tree), Make would rebuild it in the build tree.
3345 # If an up-to-date source-tree of the .info file existed,
3346 # make would not rebuild it in the build tree.
3347 # (2) having two copies of .info files, one in the source tree
3348 # and one (newer) in the build tree is not a problem
3349 # because `make dist' always pick files in the build tree
3350 # first.
3351 # However it turned out the be a bad idea for several reasons:
3352 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3353 # like GNU Make on point (1) above. These implementations
3354 # of Make would always rebuild .info files in the build
3355 # tree, even if such files were up to date in the source
3356 # tree. Consequently, it was impossible to perform a VPATH
3357 # build of a package containing Texinfo files using these
3358 # Make implementations.
3359 # (Refer to the Autoconf Manual, section "Limitation of
3360 # Make", paragraph "VPATH", item "target lookup", for
3361 # an account of the differences between these
3362 # implementations.)
3363 # * The GNU Coding Standards require these files to be built
3364 # in the source-tree (when they are distributed, that is).
3365 # * Keeping a fresher copy of distributed files in the
3366 # build tree can be annoying during development because
3367 # - if the files is kept under CVS, you really want it
3368 # to be updated in the source tree
3369 # - it is confusing that `make distclean' does not erase
3370 # all files in the build tree.
3371 #
3372 # Consequently, starting with Automake 1.8, .info files are
3373 # built in the source tree again. Because we still plan to
3374 # support non-distributed .info files at some point, we
3375 # have a single variable ($INSRC) that controls whether
3376 # the current .info file must be built in the source tree
3377 # or in the build tree. Actually this variable is switched
3378 # off for .info files that appear to be cleaned; this is
3379 # for backward compatibility with package such as Texinfo,
3380 # which do things like
3381 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3382 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3383 # # Do not create info files for distribution.
3384 # dist-info:
3385 # in order not to distribute .info files.
3386 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3388 my $soutdir = '$(srcdir)/' . $outdir;
3389 $outdir = $soutdir if $insrc;
3391 # If user specified file_TEXINFOS, then use that as explicit
3392 # dependency list.
3393 @texi_deps = ();
3394 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3396 my $canonical = canonicalize ($infobase);
3397 if (var ($canonical . "_TEXINFOS"))
3398 {
3399 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3400 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3401 }
3403 my ($dirstamp, @cfiles) =
3404 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3405 push (@texi_cleans, @cfiles);
3407 push (@info_deps_list, $out_file);
3409 # If a vers*.texi file is needed, emit the rule.
3410 if ($vtexi)
3411 {
3412 err_am ("`$vtexi', included in `$texi', "
3413 . "also included in `$versions{$vtexi}'")
3414 if defined $versions{$vtexi};
3415 $versions{$vtexi} = $texi;
3417 # We number the stamp-vti files. This is doable since the
3418 # actual names don't matter much. We only number starting
3419 # with the second one, so that the common case looks nice.
3420 my $vti = ($done ? $done : 'vti');
3421 ++$done;
3423 # This is ugly, but it is our historical practice.
3424 if ($config_aux_dir_set_in_configure_ac)
3425 {
3426 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3427 'mdate-sh');
3428 }
3429 else
3430 {
3431 require_file_with_macro (TRUE, 'info_TEXINFOS',
3432 FOREIGN, 'mdate-sh');
3433 }
3435 my $conf_dir;
3436 if ($config_aux_dir_set_in_configure_ac)
3437 {
3438 $conf_dir = "$am_config_aux_dir/";
3439 }
3440 else
3441 {
3442 $conf_dir = '$(srcdir)/';
3443 }
3444 $output_rules .= file_contents ('texi-vers',
3445 new Automake::Location,
3446 TEXI => $texi,
3447 VTI => $vti,
3448 STAMPVTI => "${soutdir}stamp-$vti",
3449 VTEXI => "$soutdir$vtexi",
3450 MDDIR => $conf_dir,
3451 DIRSTAMP => $dirstamp);
3452 }
3453 }
3455 # Handle location of texinfo.tex.
3456 my $need_texi_file = 0;
3457 my $texinfodir;
3458 if (var ('TEXINFO_TEX'))
3459 {
3460 # The user defined TEXINFO_TEX so assume he knows what he is
3461 # doing.
3462 $texinfodir = ('$(srcdir)/'
3463 . dirname (variable_value ('TEXINFO_TEX')));
3464 }
3465 elsif (option 'cygnus')
3466 {
3467 $texinfodir = '$(top_srcdir)/../texinfo';
3468 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3469 }
3470 elsif ($config_aux_dir_set_in_configure_ac)
3471 {
3472 $texinfodir = $am_config_aux_dir;
3473 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3474 $need_texi_file = 2; # so that we require_conf_file later
3475 }
3476 else
3477 {
3478 $texinfodir = '$(srcdir)';
3479 $need_texi_file = 1;
3480 }
3481 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3483 push (@dist_targets, 'dist-info');
3485 if (! option 'no-installinfo')
3486 {
3487 # Make sure documentation is made and installed first. Use
3488 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3489 # get run twice during "make all".
3490 unshift (@all, '$(INFO_DEPS)');
3491 }
3493 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3494 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3495 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3496 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3498 # This next isn't strictly needed now -- the places that look here
3499 # could easily be changed to look in info_TEXINFOS. But this is
3500 # probably better, in case noinst_TEXINFOS is ever supported.
3501 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3503 # Do some error checking. Note that this file is not required
3504 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3505 # up above.
3506 if ($need_texi_file && ! option 'no-texinfo.tex')
3507 {
3508 if ($need_texi_file > 1)
3509 {
3510 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3511 'texinfo.tex');
3512 }
3513 else
3514 {
3515 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3516 'texinfo.tex');
3517 }
3518 }
3520 return (makefile_wrap ("", "\t ", @mostly_cleans),
3521 makefile_wrap ("", "\t ", @texi_cleans),
3522 makefile_wrap ("", "\t ", @maint_cleans));
3523 }
3526 # handle_texinfo ()
3527 # -----------------
3528 # Handle all Texinfo source.
3529 sub handle_texinfo ()
3530 {
3531 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3532 # FIXME: I think this is an obsolete future feature name.
3533 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3535 my $info_texinfos = var ('info_TEXINFOS');
3536 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3537 if ($info_texinfos)
3538 {
3539 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3540 chomp $mostlyclean;
3541 chomp $clean;
3542 chomp $maintclean;
3543 }
3545 $output_rules .= file_contents ('texinfos',
3546 new Automake::Location,
3547 MOSTLYCLEAN => $mostlyclean,
3548 TEXICLEAN => $clean,
3549 MAINTCLEAN => $maintclean,
3550 'LOCAL-TEXIS' => !!$info_texinfos);
3551 }
3554 # Handle any man pages.
3555 sub handle_man_pages
3556 {
3557 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3559 # Find all the sections in use. We do this by first looking for
3560 # "standard" sections, and then looking for any additional
3561 # sections used in man_MANS.
3562 my (%sections, %notrans_sections, %trans_sections,
3563 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3564 # We handle nodist_ for uniformity. man pages aren't distributed
3565 # by default so it isn't actually very important.
3566 foreach my $npfx ('', 'notrans_')
3567 {
3568 foreach my $pfx ('', 'dist_', 'nodist_')
3569 {
3570 # Add more sections as needed.
3571 foreach my $section ('0'..'9', 'n', 'l')
3572 {
3573 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3574 if (var ($varname))
3575 {
3576 $sections{$section} = 1;
3577 $varname = '$(' . $varname . ')';
3578 if ($npfx eq 'notrans_')
3579 {
3580 $notrans_sections{$section} = 1;
3581 $notrans_sect_vars{$varname} = 1;
3582 }
3583 else
3584 {
3585 $trans_sections{$section} = 1;
3586 $trans_sect_vars{$varname} = 1;
3587 }
3589 &push_dist_common ($varname)
3590 if $pfx eq 'dist_';
3591 }
3592 }
3594 my $varname = $npfx . $pfx . 'man_MANS';
3595 my $var = var ($varname);
3596 if ($var)
3597 {
3598 foreach ($var->value_as_list_recursive)
3599 {
3600 # A page like `foo.1c' goes into man1dir.
3601 if (/\.([0-9a-z])([a-z]*)$/)
3602 {
3603 $sections{$1} = 1;
3604 if ($npfx eq 'notrans_')
3605 {
3606 $notrans_sections{$1} = 1;
3607 }
3608 else
3609 {
3610 $trans_sections{$1} = 1;
3611 }
3612 }
3613 }
3615 $varname = '$(' . $varname . ')';
3616 if ($npfx eq 'notrans_')
3617 {
3618 $notrans_vars{$varname} = 1;
3619 }
3620 else
3621 {
3622 $trans_vars{$varname} = 1;
3623 }
3624 &push_dist_common ($varname)
3625 if $pfx eq 'dist_';
3626 }
3627 }
3628 }
3630 return unless %sections;
3632 my @unsorted_deps;
3634 # Build section independent variables.
3635 my $have_notrans = %notrans_vars;
3636 my @notrans_list = sort keys %notrans_vars;
3637 my $have_trans = %trans_vars;
3638 my @trans_list = sort keys %trans_vars;
3640 # Now for each section, generate an install and uninstall rule.
3641 # Sort sections so output is deterministic.
3642 foreach my $section (sort keys %sections)
3643 {
3644 # Build section dependent variables.
3645 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3646 my $trans_mans = $have_trans || exists $trans_sections{$section};
3647 my (%notrans_this_sect, %trans_this_sect);
3648 my $expr = 'man' . $section . '_MANS';
3649 foreach my $varname (keys %notrans_sect_vars)
3650 {
3651 if ($varname =~ /$expr/)
3652 {
3653 $notrans_this_sect{$varname} = 1;
3654 }
3655 }
3656 foreach my $varname (keys %trans_sect_vars)
3657 {
3658 if ($varname =~ /$expr/)
3659 {
3660 $trans_this_sect{$varname} = 1;
3661 }
3662 }
3663 my @notrans_sect_list = sort keys %notrans_this_sect;
3664 my @trans_sect_list = sort keys %trans_this_sect;
3665 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3666 keys %notrans_this_sect, keys %trans_this_sect);
3667 my @deps = sort @unsorted_deps;
3668 $output_rules .= &file_contents ('mans',
3669 new Automake::Location,
3670 SECTION => $section,
3671 DEPS => "@deps",
3672 NOTRANS_MANS => $notrans_mans,
3673 NOTRANS_SECT_LIST => "@notrans_sect_list",
3674 HAVE_NOTRANS => $have_notrans,
3675 NOTRANS_LIST => "@notrans_list",
3676 TRANS_MANS => $trans_mans,
3677 TRANS_SECT_LIST => "@trans_sect_list",
3678 HAVE_TRANS => $have_trans,
3679 TRANS_LIST => "@trans_list");
3680 }
3682 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3683 keys %notrans_sect_vars, keys %trans_sect_vars);
3684 my @mans = sort @unsorted_deps;
3685 $output_vars .= file_contents ('mans-vars',
3686 new Automake::Location,
3687 MANS => "@mans");
3689 push (@all, '$(MANS)')
3690 unless option 'no-installman';
3691 }
3693 # Handle DATA variables.
3694 sub handle_data
3695 {
3696 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3697 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3698 'sysconf', 'sharedstate', 'localstate',
3699 'pkgdata', 'lisp', 'noinst', 'check');
3700 }
3702 # Handle TAGS.
3703 sub handle_tags
3704 {
3705 my @tag_deps = ();
3706 my @ctag_deps = ();
3707 if (var ('SUBDIRS'))
3708 {
3709 $output_rules .= ("tags-recursive:\n"
3710 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3711 # Never fail here if a subdir fails; it
3712 # isn't important.
3713 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3714 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3715 . "\tdone\n");
3716 push (@tag_deps, 'tags-recursive');
3717 &depend ('.PHONY', 'tags-recursive');
3718 &depend ('.MAKE', 'tags-recursive');
3720 $output_rules .= ("ctags-recursive:\n"
3721 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3722 # Never fail here if a subdir fails; it
3723 # isn't important.
3724 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3725 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3726 . "\tdone\n");
3727 push (@ctag_deps, 'ctags-recursive');
3728 &depend ('.PHONY', 'ctags-recursive');
3729 &depend ('.MAKE', 'ctags-recursive');
3730 }
3732 if (&saw_sources_p (1)
3733 || var ('ETAGS_ARGS')
3734 || @tag_deps)
3735 {
3736 my @config;
3737 foreach my $spec (@config_headers)
3738 {
3739 my ($out, @ins) = split_config_file_spec ($spec);
3740 foreach my $in (@ins)
3741 {
3742 # If the config header source is in this directory,
3743 # require it.
3744 push @config, basename ($in)
3745 if $relative_dir eq dirname ($in);
3746 }
3747 }
3748 $output_rules .= &file_contents ('tags',
3749 new Automake::Location,
3750 CONFIG => "@config",
3751 TAGSDIRS => "@tag_deps",
3752 CTAGSDIRS => "@ctag_deps");
3754 set_seen 'TAGS_DEPENDENCIES';
3755 }
3756 elsif (reject_var ('TAGS_DEPENDENCIES',
3757 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3758 . "without\nsources or `ETAGS_ARGS'"))
3759 {
3760 }
3761 else
3762 {
3763 # Every Makefile must define some sort of TAGS rule.
3764 # Otherwise, it would be possible for a top-level "make TAGS"
3765 # to fail because some subdirectory failed.
3766 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3767 # Ditto ctags.
3768 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3769 }
3770 }
3772 # Handle multilib support.
3773 sub handle_multilib
3774 {
3775 if ($seen_multilib && $relative_dir eq '.')
3776 {
3777 $output_rules .= &file_contents ('multilib', new Automake::Location);
3778 push (@all, 'all-multi');
3779 }
3780 }
3783 # user_phony_rule ($NAME)
3784 # -----------------------
3785 # Return false if rule $NAME does not exist. Otherwise,
3786 # declare it as phony, complete its definition (in case it is
3787 # conditional), and return its Automake::Rule instance.
3788 sub user_phony_rule ($)
3789 {
3790 my ($name) = @_;
3791 my $rule = rule $name;
3792 if ($rule)
3793 {
3794 depend ('.PHONY', $name);
3795 # Define $NAME in all condition where it is not already defined,
3796 # so that it is always OK to depend on $NAME.
3797 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3798 {
3799 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3800 $c, INTERNAL);
3801 $output_rules .= $c->subst_string . "$name:\n";
3802 }
3803 }
3804 return $rule;
3805 }
3808 # $BOOLEAN
3809 # &for_dist_common ($A, $B)
3810 # -------------------------
3811 # Subroutine for &handle_dist: sort files to dist.
3812 #
3813 # We put README first because it then becomes easier to make a
3814 # Usenet-compliant shar file (in these, README must be first).
3815 #
3816 # FIXME: do more ordering of files here.
3817 sub for_dist_common
3818 {
3819 return 0
3820 if $a eq $b;
3821 return -1
3822 if $a eq 'README';
3823 return 1
3824 if $b eq 'README';
3825 return $a cmp $b;
3826 }
3828 # handle_dist
3829 # -----------
3830 # Handle 'dist' target.
3831 sub handle_dist ()
3832 {
3833 # Substitutions for distdir.am
3834 my %transform;
3836 # Define DIST_SUBDIRS. This must always be done, regardless of the
3837 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3838 my $subdirs = var ('SUBDIRS');
3839 if ($subdirs)
3840 {
3841 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3842 # to all possible directories, and use it. If DIST_SUBDIRS is
3843 # defined, just use it.
3845 # Note that we check DIST_SUBDIRS first on purpose, so that
3846 # we don't call has_conditional_contents for now reason.
3847 # (In the past one project used so many conditional subdirectories
3848 # that calling has_conditional_contents on SUBDIRS caused
3849 # automake to grow to 150Mb -- this should not happen with
3850 # the current implementation of has_conditional_contents,
3851 # but it's more efficient to avoid the call anyway.)
3852 if (var ('DIST_SUBDIRS'))
3853 {
3854 }
3855 elsif ($subdirs->has_conditional_contents)
3856 {
3857 define_pretty_variable
3858 ('DIST_SUBDIRS', TRUE, INTERNAL,
3859 uniq ($subdirs->value_as_list_recursive));
3860 }
3861 else
3862 {
3863 # We always define this because that is what `distclean'
3864 # wants.
3865 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3866 '$(SUBDIRS)');
3867 }
3868 }
3870 # The remaining definitions are only required when a dist target is used.
3871 return if option 'no-dist';
3873 # At least one of the archive formats must be enabled.
3874 if ($relative_dir eq '.')
3875 {
3876 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3877 $archive_defined ||=
3878 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzma xz);
3879 error (option 'no-dist-gzip',
3880 "no-dist-gzip specified but no dist-* specified, "
3881 . "at least one archive format must be enabled")
3882 unless $archive_defined;
3883 }
3885 # Look for common files that should be included in distribution.
3886 # If the aux dir is set, and it does not have a Makefile.am, then
3887 # we check for these files there as well.
3888 my $check_aux = 0;
3889 if ($relative_dir eq '.'
3890 && $config_aux_dir_set_in_configure_ac)
3891 {
3892 if (! &is_make_dir ($config_aux_dir))
3893 {
3894 $check_aux = 1;
3895 }
3896 }
3897 foreach my $cfile (@common_files)
3898 {
3899 if (dir_has_case_matching_file ($relative_dir, $cfile)
3900 # The file might be absent, but if it can be built it's ok.
3901 || rule $cfile)
3902 {
3903 &push_dist_common ($cfile);
3904 }
3906 # Don't use `elsif' here because a file might meaningfully
3907 # appear in both directories.
3908 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3909 {
3910 &push_dist_common ("$config_aux_dir/$cfile")
3911 }
3912 }
3914 # We might copy elements from $configure_dist_common to
3915 # %dist_common if we think we need to. If the file appears in our
3916 # directory, we would have discovered it already, so we don't
3917 # check that. But if the file is in a subdir without a Makefile,
3918 # we want to distribute it here if we are doing `.'. Ugly!
3919 if ($relative_dir eq '.')
3920 {
3921 foreach my $file (split (' ' , $configure_dist_common))
3922 {
3923 push_dist_common ($file)
3924 unless is_make_dir (dirname ($file));
3925 }
3926 }
3928 # Files to distributed. Don't use ->value_as_list_recursive
3929 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3930 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3931 @dist_common = uniq (sort for_dist_common (@dist_common));
3932 variable_delete 'DIST_COMMON';
3933 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3935 # Now that we've processed DIST_COMMON, disallow further attempts
3936 # to set it.
3937 $handle_dist_run = 1;
3939 # Scan EXTRA_DIST to see if we need to distribute anything from a
3940 # subdir. If so, add it to the list. I didn't want to do this
3941 # originally, but there were so many requests that I finally
3942 # relented.
3943 my $extra_dist = var ('EXTRA_DIST');
3945 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3946 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3948 # If the target `dist-hook' exists, make sure it is run. This
3949 # allows users to do random weird things to the distribution
3950 # before it is packaged up.
3951 push (@dist_targets, 'dist-hook')
3952 if user_phony_rule 'dist-hook';
3953 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3955 my $flm = option ('filename-length-max');
3956 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3958 $output_rules .= &file_contents ('distdir',
3959 new Automake::Location,
3960 %transform,
3961 FILENAME_FILTER => $filename_filter);
3962 }
3965 # check_directory ($NAME, $WHERE)
3966 # -------------------------------
3967 # Ensure $NAME is a directory, and that it uses a sane name.
3968 # Use $WHERE as a location in the diagnostic, if any.
3969 sub check_directory ($$)
3970 {
3971 my ($dir, $where) = @_;
3973 error $where, "required directory $relative_dir/$dir does not exist"
3974 unless -d "$relative_dir/$dir";
3976 # If an `obj/' directory exists, BSD make will enter it before
3977 # reading `Makefile'. Hence the `Makefile' in the current directory
3978 # will not be read.
3979 #
3980 # % cat Makefile
3981 # all:
3982 # echo Hello
3983 # % cat obj/Makefile
3984 # all:
3985 # echo World
3986 # % make # GNU make
3987 # echo Hello
3988 # Hello
3989 # % pmake # BSD make
3990 # echo World
3991 # World
3992 msg ('portability', $where,
3993 "naming a subdirectory `obj' causes troubles with BSD make")
3994 if $dir eq 'obj';
3996 # `aux' is probably the most important of the following forbidden name,
3997 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3998 msg ('portability', $where,
3999 "name `$dir' is reserved on W32 and DOS platforms")
4000 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4001 }
4003 # check_directories_in_var ($VARIABLE)
4004 # ------------------------------------
4005 # Recursively check all items in variables $VARIABLE as directories
4006 sub check_directories_in_var ($)
4007 {
4008 my ($var) = @_;
4009 $var->traverse_recursively
4010 (sub
4011 {
4012 my ($var, $val, $cond, $full_cond) = @_;
4013 check_directory ($val, $var->rdef ($cond)->location);
4014 return ();
4015 },
4016 undef,
4017 skip_ac_subst => 1);
4018 }
4020 # &handle_subdirs ()
4021 # ------------------
4022 # Handle subdirectories.
4023 sub handle_subdirs ()
4024 {
4025 my $subdirs = var ('SUBDIRS');
4026 return
4027 unless $subdirs;
4029 check_directories_in_var $subdirs;
4031 my $dsubdirs = var ('DIST_SUBDIRS');
4032 check_directories_in_var $dsubdirs
4033 if $dsubdirs;
4035 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4036 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4037 }
4040 # ($REGEN, @DEPENDENCIES)
4041 # &scan_aclocal_m4
4042 # ----------------
4043 # If aclocal.m4 creation is automated, return the list of its dependencies.
4044 sub scan_aclocal_m4 ()
4045 {
4046 my $regen_aclocal = 0;
4048 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4049 set_seen 'CONFIGURE_DEPENDENCIES';
4051 if (-f 'aclocal.m4')
4052 {
4053 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4055 my $aclocal = new Automake::XFile "< aclocal.m4";
4056 my $line = $aclocal->getline;
4057 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4058 }
4060 my @ac_deps = ();
4062 if (set_seen ('ACLOCAL_M4_SOURCES'))
4063 {
4064 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4065 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4066 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4067 . "It should be safe to simply remove it.");
4068 }
4070 # Note that it might be possible that aclocal.m4 doesn't exist but
4071 # should be auto-generated. This case probably isn't very
4072 # important.
4074 return ($regen_aclocal, @ac_deps);
4075 }
4078 # Helper function for substitute_ac_subst_variables.
4079 sub substitute_ac_subst_variables_worker($)
4080 {
4081 my ($token) = @_;
4082 return "\@$token\@" if var $token;
4083 return "\${$token\}";
4084 }
4086 # substitute_ac_subst_variables ($TEXT)
4087 # -------------------------------------
4088 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4089 # variable.
4090 sub substitute_ac_subst_variables ($)
4091 {
4092 my ($text) = @_;
4093 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4094 return $text;
4095 }
4097 # @DEPENDENCIES
4098 # &prepend_srcdir (@INPUTS)
4099 # -------------------------
4100 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4101 # if an input file has a directory part the same as the current
4102 # directory, then the directory part is simply replaced by $(srcdir).
4103 # But if the directory part is different, then $(top_srcdir) is
4104 # prepended.
4105 sub prepend_srcdir (@)
4106 {
4107 my (@inputs) = @_;
4108 my @newinputs;
4110 foreach my $single (@inputs)
4111 {
4112 if (dirname ($single) eq $relative_dir)
4113 {
4114 push (@newinputs, '$(srcdir)/' . basename ($single));
4115 }
4116 else
4117 {
4118 push (@newinputs, '$(top_srcdir)/' . $single);
4119 }
4120 }
4121 return @newinputs;
4122 }
4124 # @DEPENDENCIES
4125 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4126 # ---------------------------------------------------
4127 # Compute a list of dependencies appropriate for the rebuild
4128 # rule of
4129 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4130 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOS.
4131 sub rewrite_inputs_into_dependencies ($@)
4132 {
4133 my ($file, @inputs) = @_;
4134 my @res = ();
4136 for my $i (@inputs)
4137 {
4138 # We cannot create dependencies on shell variables.
4139 next if (substitute_ac_subst_variables $i) =~ /\$/;
4141 if (exists $ac_config_files_location{$i} && $i ne $file)
4142 {
4143 my $di = dirname $i;
4144 if ($di eq $relative_dir)
4145 {
4146 $i = basename $i;
4147 }
4148 # In the top-level Makefile we do not use $(top_builddir), because
4149 # we are already there, and since the targets are built without
4150 # a $(top_builddir), it helps BSD Make to match them with
4151 # dependencies.
4152 elsif ($relative_dir ne '.')
4153 {
4154 $i = '$(top_builddir)/' . $i;
4155 }
4156 }
4157 else
4158 {
4159 msg ('error', $ac_config_files_location{$file},
4160 "required file `$i' not found")
4161 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4162 ($i) = prepend_srcdir ($i);
4163 push_dist_common ($i);
4164 }
4165 push @res, $i;
4166 }
4167 return @res;
4168 }
4172 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4173 # ------------------------------------------------------------------
4174 # Handle remaking and configure stuff.
4175 # We need the name of the input file, to do proper remaking rules.
4176 sub handle_configure ($$$@)
4177 {
4178 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4180 prog_error 'empty @inputs'
4181 unless @inputs;
4183 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4184 $makefile_in);
4185 my $rel_makefile = basename $makefile;
4187 my $colon_infile = ':' . join (':', @inputs);
4188 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4189 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4190 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4191 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4192 @configure_deps, @aclocal_m4_deps,
4193 '$(top_srcdir)/' . $configure_ac);
4194 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4195 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4196 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4197 @configuredeps);
4199 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4200 . (global_option 'no-dependencies' ? ' --ignore-deps' : '')
4201 . (global_option 'silent-rules' ? ' --silent-rules' : '');
4203 $output_rules .= file_contents
4204 ('configure',
4205 new Automake::Location,
4206 MAKEFILE => $rel_makefile,
4207 'MAKEFILE-DEPS' => "@rewritten",
4208 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4209 'MAKEFILE-IN' => $rel_makefile_in,
4210 'MAKEFILE-IN-DEPS' => "@include_stack",
4211 'MAKEFILE-AM' => $rel_makefile_am,
4212 'AUTOMAKE-OPTIONS' => $automake_options,
4213 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4214 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4215 VERBOSE => verbose_flag ('GEN'));
4217 if ($relative_dir eq '.')
4218 {
4219 &push_dist_common ('acconfig.h')
4220 if -f 'acconfig.h';
4221 }
4223 # If we have a configure header, require it.
4224 my $hdr_index = 0;
4225 my @distclean_config;
4226 foreach my $spec (@config_headers)
4227 {
4228 $hdr_index += 1;
4229 # $CONFIG_H_PATH: config.h from top level.
4230 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4231 my $config_h_dir = dirname ($config_h_path);
4233 # If the header is in the current directory we want to build
4234 # the header here. Otherwise, if we're at the topmost
4235 # directory and the header's directory doesn't have a
4236 # Makefile, then we also want to build the header.
4237 if ($relative_dir eq $config_h_dir
4238 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4239 {
4240 my ($cn_sans_dir, $stamp_dir);
4241 if ($relative_dir eq $config_h_dir)
4242 {
4243 $cn_sans_dir = basename ($config_h_path);
4244 $stamp_dir = '';
4245 }
4246 else
4247 {
4248 $cn_sans_dir = $config_h_path;
4249 if ($config_h_dir eq '.')
4250 {
4251 $stamp_dir = '';
4252 }
4253 else
4254 {
4255 $stamp_dir = $config_h_dir . '/';
4256 }
4257 }
4259 # This will also distribute all inputs.
4260 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4262 # Cannot define rebuild rules for filenames with shell variables.
4263 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4265 # Header defined in this directory.
4266 my @files;
4267 if (-f $config_h_path . '.top')
4268 {
4269 push (@files, "$cn_sans_dir.top");
4270 }
4271 if (-f $config_h_path . '.bot')
4272 {
4273 push (@files, "$cn_sans_dir.bot");
4274 }
4276 push_dist_common (@files);
4278 # For now, acconfig.h can only appear in the top srcdir.
4279 if (-f 'acconfig.h')
4280 {
4281 push (@files, '$(top_srcdir)/acconfig.h');
4282 }
4284 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4285 $output_rules .=
4286 file_contents ('remake-hdr',
4287 new Automake::Location,
4288 FILES => "@files",
4289 CONFIG_H => $cn_sans_dir,
4290 CONFIG_HIN => $ins[0],
4291 CONFIG_H_DEPS => "@ins",
4292 CONFIG_H_PATH => $config_h_path,
4293 STAMP => "$stamp");
4295 push @distclean_config, $cn_sans_dir, $stamp;
4296 }
4297 }
4299 $output_rules .= file_contents ('clean-hdr',
4300 new Automake::Location,
4301 FILES => "@distclean_config")
4302 if @distclean_config;
4304 # Distribute and define mkinstalldirs only if it is already present
4305 # in the package, for backward compatibility (some people may still
4306 # use $(mkinstalldirs)).
4307 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4308 if (-f $mkidpath)
4309 {
4310 # Use require_file so that any existing script gets updated
4311 # by --force-missing.
4312 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4313 define_variable ('mkinstalldirs',
4314 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4315 }
4316 else
4317 {
4318 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4319 # at least one argument, and $(mkinstalldirs) used to work
4320 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4321 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4322 }
4324 reject_var ('CONFIG_HEADER',
4325 "`CONFIG_HEADER' is an anachronism; now determined "
4326 . "automatically\nfrom `$configure_ac'");
4328 my @config_h;
4329 foreach my $spec (@config_headers)
4330 {
4331 my ($out, @ins) = split_config_file_spec ($spec);
4332 # Generate CONFIG_HEADER define.
4333 if ($relative_dir eq dirname ($out))
4334 {
4335 push @config_h, basename ($out);
4336 }
4337 else
4338 {
4339 push @config_h, "\$(top_builddir)/$out";
4340 }
4341 }
4342 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4343 if @config_h;
4345 # Now look for other files in this directory which must be remade
4346 # by config.status, and generate rules for them.
4347 my @actual_other_files = ();
4348 # These get cleaned only in a VPATH build.
4349 my @actual_other_vpath_files = ();
4350 foreach my $lfile (@other_input_files)
4351 {
4352 my $file;
4353 my @inputs;
4354 if ($lfile =~ /^([^:]*):(.*)$/)
4355 {
4356 # This is the ":" syntax of AC_OUTPUT.
4357 $file = $1;
4358 @inputs = split (':', $2);
4359 }
4360 else
4361 {
4362 # Normal usage.
4363 $file = $lfile;
4364 @inputs = $file . '.in';
4365 }
4367 # Automake files should not be stored in here, but in %MAKE_LIST.
4368 prog_error ("$lfile in \@other_input_files\n"
4369 . "\@other_input_files = (@other_input_files)")
4370 if -f $file . '.am';
4372 my $local = basename ($file);
4374 # We skip files that aren't in this directory. However, if
4375 # the file's directory does not have a Makefile, and we are
4376 # currently doing `.', then we create a rule to rebuild the
4377 # file in the subdir.
4378 my $fd = dirname ($file);
4379 if ($fd ne $relative_dir)
4380 {
4381 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4382 {
4383 $local = $file;
4384 }
4385 else
4386 {
4387 next;
4388 }
4389 }
4391 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4393 # Cannot output rules for shell variables.
4394 next if (substitute_ac_subst_variables $local) =~ /\$/;
4396 my $condstr = '';
4397 my $cond = $ac_config_files_condition{$lfile};
4398 if (defined $cond)
4399 {
4400 $condstr = $cond->subst_string;
4401 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4402 $ac_config_files_location{$file});
4403 }
4404 $output_rules .= ($condstr . $local . ': '
4405 . '$(top_builddir)/config.status '
4406 . "@rewritten_inputs\n"
4407 . $condstr . "\t"
4408 . 'cd $(top_builddir) && '
4409 . '$(SHELL) ./config.status '
4410 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4411 . '$@'
4412 . "\n");
4413 push (@actual_other_files, $local);
4414 }
4416 # For links we should clean destinations and distribute sources.
4417 foreach my $spec (@config_links)
4418 {
4419 my ($link, $file) = split /:/, $spec;
4420 # Some people do AC_CONFIG_LINKS($computed). We only handle
4421 # the DEST:SRC form.
4422 next unless $file;
4423 my $where = $ac_config_files_location{$link};
4425 # Skip destinations that contain shell variables.
4426 if ((substitute_ac_subst_variables $link) !~ /\$/)
4427 {
4428 # We skip links that aren't in this directory. However, if
4429 # the link's directory does not have a Makefile, and we are
4430 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4431 # in `.'s Makefile.in.
4432 my $local = basename ($link);
4433 my $fd = dirname ($link);
4434 if ($fd ne $relative_dir)
4435 {
4436 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4437 {
4438 $local = $link;
4439 }
4440 else
4441 {
4442 $local = undef;
4443 }
4444 }
4445 if ($file ne $link)
4446 {
4447 push @actual_other_files, $local if $local;
4448 }
4449 else
4450 {
4451 push @actual_other_vpath_files, $local if $local;
4452 }
4453 }
4455 # Do not process sources that contain shell variables.
4456 if ((substitute_ac_subst_variables $file) !~ /\$/)
4457 {
4458 my $fd = dirname ($file);
4460 # We distribute files that are in this directory.
4461 # At the top-level (`.') we also distribute files whose
4462 # directory does not have a Makefile.
4463 if (($fd eq $relative_dir)
4464 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4465 {
4466 # The following will distribute $file as a side-effect when
4467 # it is appropriate (i.e., when $file is not already an output).
4468 # We do not need the result, just the side-effect.
4469 rewrite_inputs_into_dependencies ($link, $file);
4470 }
4471 }
4472 }
4474 # These files get removed by "make distclean".
4475 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4476 @actual_other_files);
4477 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4478 @actual_other_vpath_files);
4479 }
4481 # Handle C headers.
4482 sub handle_headers
4483 {
4484 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4485 'oldinclude', 'pkginclude',
4486 'noinst', 'check');
4487 foreach (@r)
4488 {
4489 next unless $_->[1] =~ /\..*$/;
4490 &saw_extension ($&);
4491 }
4492 }
4494 sub handle_gettext
4495 {
4496 return if ! $seen_gettext || $relative_dir ne '.';
4498 my $subdirs = var 'SUBDIRS';
4500 if (! $subdirs)
4501 {
4502 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4503 return;
4504 }
4506 # Perform some sanity checks to help users get the right setup.
4507 # We disable these tests when po/ doesn't exist in order not to disallow
4508 # unusual gettext setups.
4509 #
4510 # Bruno Haible:
4511 # | The idea is:
4512 # |
4513 # | 1) If a package doesn't have a directory po/ at top level, it
4514 # | will likely have multiple po/ directories in subpackages.
4515 # |
4516 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4517 # | is used without 'external'. It is also useful to warn for the
4518 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4519 # | warnings apply only to the usual layout of packages, therefore
4520 # | they should both be disabled if no po/ directory is found at
4521 # | top level.
4523 if (-d 'po')
4524 {
4525 my @subdirs = $subdirs->value_as_list_recursive;
4527 msg_var ('syntax', $subdirs,
4528 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4529 if ! grep ($_ eq 'po', @subdirs);
4531 # intl/ is not required when AM_GNU_GETTEXT is called with the
4532 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4533 msg_var ('syntax', $subdirs,
4534 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4535 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4536 && ! grep ($_ eq 'intl', @subdirs));
4538 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4539 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4540 msg_var ('syntax', $subdirs,
4541 "`intl' should not be in SUBDIRS when "
4542 . "AM_GNU_GETTEXT([external]) is used")
4543 if ($seen_gettext_external && ! $seen_gettext_intl
4544 && grep ($_ eq 'intl', @subdirs));
4545 }
4547 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4548 }
4550 # Handle footer elements.
4551 sub handle_footer
4552 {
4553 reject_rule ('.SUFFIXES',
4554 "use variable `SUFFIXES', not target `.SUFFIXES'");
4556 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4557 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4558 # anything else, by sticking it right after the default: target.
4559 $output_header .= ".SUFFIXES:\n";
4560 my $suffixes = var 'SUFFIXES';
4561 my @suffixes = Automake::Rule::suffixes;
4562 if (@suffixes || $suffixes)
4563 {
4564 # Make sure SUFFIXES has unique elements. Sort them to ensure
4565 # the output remains consistent. However, $(SUFFIXES) is
4566 # always at the start of the list, unsorted. This is done
4567 # because make will choose rules depending on the ordering of
4568 # suffixes, and this lets the user have some control. Push
4569 # actual suffixes, and not $(SUFFIXES). Some versions of make
4570 # do not like variable substitutions on the .SUFFIXES line.
4571 my @user_suffixes = ($suffixes
4572 ? $suffixes->value_as_list_recursive : ());
4574 my %suffixes = map { $_ => 1 } @suffixes;
4575 delete @suffixes{@user_suffixes};
4577 $output_header .= (".SUFFIXES: "
4578 . join (' ', @user_suffixes, sort keys %suffixes)
4579 . "\n");
4580 }
4582 $output_trailer .= file_contents ('footer', new Automake::Location);
4583 }
4586 # Generate `make install' rules.
4587 sub handle_install ()
4588 {
4589 $output_rules .= &file_contents
4590 ('install',
4591 new Automake::Location,
4592 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4593 ? (" \$(BUILT_SOURCES)\n"
4594 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4595 : ''),
4596 'installdirs-local' => (user_phony_rule 'installdirs-local'
4597 ? ' installdirs-local' : ''),
4598 am__installdirs => variable_value ('am__installdirs') || '');
4599 }
4602 # Deal with all and all-am.
4603 sub handle_all ($)
4604 {
4605 my ($makefile) = @_;
4607 # Output `all-am'.
4609 # Put this at the beginning for the sake of non-GNU makes. This
4610 # is still wrong if these makes can run parallel jobs. But it is
4611 # right enough.
4612 unshift (@all, basename ($makefile));
4614 foreach my $spec (@config_headers)
4615 {
4616 my ($out, @ins) = split_config_file_spec ($spec);
4617 push (@all, basename ($out))
4618 if dirname ($out) eq $relative_dir;
4619 }
4621 # Install `all' hooks.
4622 push (@all, "all-local")
4623 if user_phony_rule "all-local";
4625 &pretty_print_rule ("all-am:", "\t\t", @all);
4626 &depend ('.PHONY', 'all-am', 'all');
4629 # Output `all'.
4631 my @local_headers = ();
4632 push @local_headers, '$(BUILT_SOURCES)'
4633 if var ('BUILT_SOURCES');
4634 foreach my $spec (@config_headers)
4635 {
4636 my ($out, @ins) = split_config_file_spec ($spec);
4637 push @local_headers, basename ($out)
4638 if dirname ($out) eq $relative_dir;
4639 }
4641 if (@local_headers)
4642 {
4643 # We need to make sure config.h is built before we recurse.
4644 # We also want to make sure that built sources are built
4645 # before any ordinary `all' targets are run. We can't do this
4646 # by changing the order of dependencies to the "all" because
4647 # that breaks when using parallel makes. Instead we handle
4648 # things explicitly.
4649 $output_all .= ("all: @local_headers"
4650 . "\n\t"
4651 . '$(MAKE) $(AM_MAKEFLAGS) '
4652 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4653 . "\n\n");
4654 depend ('.MAKE', 'all');
4655 }
4656 else
4657 {
4658 $output_all .= "all: " . (var ('SUBDIRS')
4659 ? 'all-recursive' : 'all-am') . "\n\n";
4660 }
4661 }
4664 # &do_check_merge_target ()
4665 # -------------------------
4666 # Handle check merge target specially.
4667 sub do_check_merge_target ()
4668 {
4669 # Include user-defined local form of target.
4670 push @check_tests, 'check-local'
4671 if user_phony_rule 'check-local';
4673 # In --cygnus mode, check doesn't depend on all.
4674 if (option 'cygnus')
4675 {
4676 # Just run the local check rules.
4677 pretty_print_rule ('check-am:', "\t\t", @check);
4678 }
4679 else
4680 {
4681 # The check target must depend on the local equivalent of
4682 # `all', to ensure all the primary targets are built. Then it
4683 # must build the local check rules.
4684 $output_rules .= "check-am: all-am\n";
4685 if (@check)
4686 {
4687 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4688 @check);
4689 depend ('.MAKE', 'check-am');
4690 }
4691 }
4692 if (@check_tests)
4693 {
4694 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4695 @check_tests);
4696 depend ('.MAKE', 'check-am');
4697 }
4699 depend '.PHONY', 'check', 'check-am';
4700 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4701 $output_rules .= ("check: "
4702 . (var ('BUILT_SOURCES')
4703 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4704 : '')
4705 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4706 . "\n");
4707 depend ('.MAKE', 'check')
4708 if var ('BUILT_SOURCES');
4709 }
4711 # handle_clean ($MAKEFILE)
4712 # ------------------------
4713 # Handle all 'clean' targets.
4714 sub handle_clean ($)
4715 {
4716 my ($makefile) = @_;
4718 # Clean the files listed in user variables if they exist.
4719 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4720 if var ('MOSTLYCLEANFILES');
4721 $clean_files{'$(CLEANFILES)'} = CLEAN
4722 if var ('CLEANFILES');
4723 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4724 if var ('DISTCLEANFILES');
4725 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4726 if var ('MAINTAINERCLEANFILES');
4728 # Built sources are automatically removed by maintainer-clean.
4729 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4730 if var ('BUILT_SOURCES');
4732 # Compute a list of "rm"s to run for each target.
4733 my %rms = (MOSTLY_CLEAN, [],
4734 CLEAN, [],
4735 DIST_CLEAN, [],
4736 MAINTAINER_CLEAN, []);
4738 foreach my $file (keys %clean_files)
4739 {
4740 my $when = $clean_files{$file};
4741 prog_error 'invalid entry in %clean_files'
4742 unless exists $rms{$when};
4744 my $rm = "rm -f $file";
4745 # If file is a variable, make sure when don't call `rm -f' without args.
4746 $rm ="test -z \"$file\" || $rm"
4747 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4749 push @{$rms{$when}}, "\t-$rm\n";
4750 }
4752 $output_rules .= &file_contents
4753 ('clean',
4754 new Automake::Location,
4755 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4756 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4757 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4758 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4759 MAKEFILE => basename $makefile,
4760 );
4761 }
4764 # &target_cmp ($A, $B)
4765 # --------------------
4766 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4767 # other `.TARGETS' be last.
4768 sub target_cmp
4769 {
4770 return 0 if $a eq $b;
4772 my $a1 = substr ($a, 0, 1);
4773 my $b1 = substr ($b, 0, 1);
4774 if ($a1 ne $b1)
4775 {
4776 return -1 if $b1 eq '.';
4777 return 1 if $a1 eq '.';
4778 }
4779 return $a cmp $b;
4780 }
4783 # &handle_factored_dependencies ()
4784 # --------------------------------
4785 # Handle everything related to gathered targets.
4786 sub handle_factored_dependencies
4787 {
4788 # Reject bad hooks.
4789 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4790 'uninstall-exec-local', 'uninstall-exec-hook',
4791 'uninstall-dvi-local',
4792 'uninstall-html-local',
4793 'uninstall-info-local',
4794 'uninstall-pdf-local',
4795 'uninstall-ps-local')
4796 {
4797 my $x = $utarg;
4798 $x =~ s/-.*-/-/;
4799 reject_rule ($utarg, "use `$x', not `$utarg'");
4800 }
4802 reject_rule ('install-local',
4803 "use `install-data-local' or `install-exec-local', "
4804 . "not `install-local'");
4806 reject_rule ('install-hook',
4807 "use `install-data-hook' or `install-exec-hook', "
4808 . "not `install-hook'");
4810 # Install the -local hooks.
4811 foreach (keys %dependencies)
4812 {
4813 # Hooks are installed on the -am targets.
4814 s/-am$// or next;
4815 depend ("$_-am", "$_-local")
4816 if user_phony_rule "$_-local";
4817 }
4819 # Install the -hook hooks.
4820 # FIXME: Why not be as liberal as we are with -local hooks?
4821 foreach ('install-exec', 'install-data', 'uninstall')
4822 {
4823 if (user_phony_rule "$_-hook")
4824 {
4825 depend ('.MAKE', "$_-am");
4826 register_action("$_-am",
4827 ("\t\@\$(NORMAL_INSTALL)\n"
4828 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4829 }
4830 }
4832 # All the required targets are phony.
4833 depend ('.PHONY', keys %required_targets);
4835 # Actually output gathered targets.
4836 foreach (sort target_cmp keys %dependencies)
4837 {
4838 # If there is nothing about this guy, skip it.
4839 next
4840 unless (@{$dependencies{$_}}
4841 || $actions{$_}
4842 || $required_targets{$_});
4844 # Define gathered targets in undefined conditions.
4845 # FIXME: Right now we must handle .PHONY as an exception,
4846 # because people write things like
4847 # .PHONY: myphonytarget
4848 # to append dependencies. This would not work if Automake
4849 # refrained from defining its own .PHONY target as it does
4850 # with other overridden targets.
4851 # Likewise for `.MAKE'.
4852 my @undefined_conds = (TRUE,);
4853 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4854 {
4855 @undefined_conds =
4856 Automake::Rule::define ($_, 'internal',
4857 RULE_AUTOMAKE, TRUE, INTERNAL);
4858 }
4859 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4860 foreach my $cond (@undefined_conds)
4861 {
4862 my $condstr = $cond->subst_string;
4863 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4864 $output_rules .= $actions{$_} if defined $actions{$_};
4865 $output_rules .= "\n";
4866 }
4867 }
4868 }
4871 # &handle_tests_dejagnu ()
4872 # ------------------------
4873 sub handle_tests_dejagnu
4874 {
4875 push (@check_tests, 'check-DEJAGNU');
4876 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4877 }
4880 # Handle TESTS variable and other checks.
4881 sub handle_tests
4882 {
4883 if (option 'dejagnu')
4884 {
4885 &handle_tests_dejagnu;
4886 }
4887 else
4888 {
4889 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4890 {
4891 reject_var ($c, "`$c' defined but `dejagnu' not in "
4892 . "`AUTOMAKE_OPTIONS'");
4893 }
4894 }
4896 if (var ('TESTS'))
4897 {
4898 push (@check_tests, 'check-TESTS');
4899 $output_rules .= &file_contents ('check', new Automake::Location,
4900 COLOR => !! option 'color-tests',
4901 PARALLEL_TESTS => !! option 'parallel-tests');
4903 # Tests that are known programs should have $(EXEEXT) appended.
4904 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4905 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4906 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4907 if (var ('XFAIL_TESTS'));
4909 if (option 'parallel-tests')
4910 {
4911 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4912 define_variable ('TEST_SUITE_HTML', '$(TEST_SUITE_LOG:.log=.html)', INTERNAL);
4913 my $suff = '.test';
4914 my $at_exeext = '';
4915 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4916 if ($handle_exeext)
4917 {
4918 $at_exeext = subst ('EXEEXT');
4919 $suff = $at_exeext . ' ' . $suff;
4920 }
4921 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4922 # FIXME: this mishandles conditions.
4923 my @test_suffixes = (var 'TEST_EXTENSIONS')->value_as_list_recursive;
4924 if ($handle_exeext)
4925 {
4926 unshift (@test_suffixes, $at_exeext)
4927 unless $test_suffixes[0] eq $at_exeext;
4928 }
4929 unshift (@test_suffixes, '');
4931 transform_variable_recursively
4932 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4933 sub {
4934 my ($subvar, $val, $cond, $full_cond) = @_;
4935 my $obj = $val;
4936 return $obj
4937 if $val =~ /^\@.*\@$/;
4938 $obj =~ s/\$\(EXEEXT\)$//o;
4940 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4941 {
4942 msg ('error', $subvar->rdef ($cond)->location,
4943 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
4944 }
4946 foreach my $test_suffix (@test_suffixes)
4947 {
4948 next
4949 if $test_suffix eq $at_exeext || $test_suffix eq '';
4950 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4951 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4952 }
4953 $obj .= '.log';
4954 my $compile = 'LOG_COMPILE';
4955 define_variable ($compile,
4956 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
4957 $output_rules .= file_contents ('check2', new Automake::Location,
4958 GENERIC => 0,
4959 OBJ => $obj,
4960 SOURCE => $val,
4961 COMPILE =>'$(' . $compile . ')',
4962 EXT => '',
4963 am__EXEEXT => 'FALSE');
4964 return $obj;
4965 });
4967 my $nhelper=1;
4968 my $prev = 'TESTS';
4969 my $post = '';
4970 my $last_suffix = $test_suffixes[$#test_suffixes];
4971 my $cur = '';
4972 foreach my $test_suffix (@test_suffixes)
4973 {
4974 if ($test_suffix eq $last_suffix)
4975 {
4976 $cur = 'TEST_LOGS';
4977 }
4978 else
4979 {
4980 $cur = 'am__test_logs' . $nhelper;
4981 }
4982 define_variable ($cur,
4983 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4984 $post = '.log';
4985 $prev = $cur;
4986 $nhelper++;
4987 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4988 {
4989 (my $ext = $test_suffix) =~ s/^\.//;
4990 $ext = uc $ext;
4991 my $compile = $ext . '_LOG_COMPILE';
4992 define_variable ($compile,
4993 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
4994 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
4995 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
4996 $output_rules .= file_contents ('check2', new Automake::Location,
4997 GENERIC => 1,
4998 OBJ => '',
4999 SOURCE => '$<',
5000 COMPILE => '$(' . $compile . ')',
5001 EXT => $test_suffix,
5002 am__EXEEXT => $am_exeext);
5003 }
5004 }
5006 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5008 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5009 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5010 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5011 $clean_files{'$(TEST_SUITE_HTML)'} = MOSTLY_CLEAN;
5012 }
5013 }
5014 }
5016 # Handle Emacs Lisp.
5017 sub handle_emacs_lisp
5018 {
5019 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5020 'lisp', 'noinst');
5022 return if ! @elfiles;
5024 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5025 map { $_->[1] } @elfiles);
5026 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5027 '$(am__ELFILES:.el=.elc)');
5028 # This one can be overridden by users.
5029 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5031 push @all, '$(ELCFILES)';
5033 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5034 'EMACS', 'lispdir');
5035 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5036 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5037 }
5039 # Handle Python
5040 sub handle_python
5041 {
5042 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5043 'noinst');
5044 return if ! @pyfiles;
5046 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5047 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5048 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5049 }
5051 # Handle Java.
5052 sub handle_java
5053 {
5054 my @sourcelist = &am_install_var ('-candist',
5055 'java', 'JAVA',
5056 'java', 'noinst', 'check');
5057 return if ! @sourcelist;
5059 my @prefix = am_primary_prefixes ('JAVA', 1,
5060 'java', 'noinst', 'check');
5062 my $dir;
5063 foreach my $curs (@prefix)
5064 {
5065 next
5066 if $curs eq 'EXTRA';
5068 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5069 if defined $dir;
5070 $dir = $curs;
5071 }
5074 push (@all, 'class' . $dir . '.stamp');
5075 }
5078 # Handle some of the minor options.
5079 sub handle_minor_options
5080 {
5081 if (option 'readme-alpha')
5082 {
5083 if ($relative_dir eq '.')
5084 {
5085 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5086 {
5087 msg ('error-gnits', $package_version_location,
5088 "version `$package_version' doesn't follow " .
5089 "Gnits standards");
5090 }
5091 if (defined $1 && -f 'README-alpha')
5092 {
5093 # This means we have an alpha release. See
5094 # GNITS_VERSION_PATTERN for details.
5095 push_dist_common ('README-alpha');
5096 }
5097 }
5098 }
5099 }
5101 ################################################################
5103 # ($OUTPUT, @INPUTS)
5104 # &split_config_file_spec ($SPEC)
5105 # -------------------------------
5106 # Decode the Autoconf syntax for config files (files, headers, links
5107 # etc.).
5108 sub split_config_file_spec ($)
5109 {
5110 my ($spec) = @_;
5111 my ($output, @inputs) = split (/:/, $spec);
5113 push @inputs, "$output.in"
5114 unless @inputs;
5116 return ($output, @inputs);
5117 }
5119 # $input
5120 # locate_am (@POSSIBLE_SOURCES)
5121 # -----------------------------
5122 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5123 # This functions returns the first *.in file for which a *.am exists.
5124 # It returns undef otherwise.
5125 sub locate_am (@)
5126 {
5127 my (@rest) = @_;
5128 my $input;
5129 foreach my $file (@rest)
5130 {
5131 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5132 {
5133 $input = $file;
5134 last;
5135 }
5136 }
5137 return $input;
5138 }
5140 my %make_list;
5142 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5143 # ---------------------------------------------------
5144 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5145 # (or AC_OUTPUT).
5146 sub scan_autoconf_config_files ($$)
5147 {
5148 my ($where, $config_files) = @_;
5150 # Look at potential Makefile.am's.
5151 foreach (split ' ', $config_files)
5152 {
5153 # Must skip empty string for Perl 4.
5154 next if $_ eq "\\" || $_ eq '';
5156 # Handle $local:$input syntax.
5157 my ($local, @rest) = split (/:/);
5158 @rest = ("$local.in",) unless @rest;
5159 msg ('portability', $where,
5160 "Omit leading `./' from config file names such as `$local',"
5161 . "\nas not all make implementations treat `file' and `./file' equally.")
5162 if ($local =~ /^\.\//);
5163 my $input = locate_am @rest;
5164 if ($input)
5165 {
5166 # We have a file that automake should generate.
5167 $make_list{$input} = join (':', ($local, @rest));
5168 }
5169 else
5170 {
5171 # We have a file that automake should cause to be
5172 # rebuilt, but shouldn't generate itself.
5173 push (@other_input_files, $_);
5174 }
5175 $ac_config_files_location{$local} = $where;
5176 $ac_config_files_condition{$local} =
5177 new Automake::Condition (@cond_stack)
5178 if (@cond_stack);
5179 }
5180 }
5183 # &scan_autoconf_traces ($FILENAME)
5184 # ---------------------------------
5185 sub scan_autoconf_traces ($)
5186 {
5187 my ($filename) = @_;
5189 # Macros to trace, with their minimal number of arguments.
5190 #
5191 # IMPORTANT: If you add a macro here, you should also add this macro
5192 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5193 my %traced = (
5194 AC_CANONICAL_BUILD => 0,
5195 AC_CANONICAL_HOST => 0,
5196 AC_CANONICAL_TARGET => 0,
5197 AC_CONFIG_AUX_DIR => 1,
5198 AC_CONFIG_FILES => 1,
5199 AC_CONFIG_HEADERS => 1,
5200 AC_CONFIG_LIBOBJ_DIR => 1,
5201 AC_CONFIG_LINKS => 1,
5202 AC_FC_SRCEXT => 1,
5203 AC_INIT => 0,
5204 AC_LIBSOURCE => 1,
5205 AC_REQUIRE_AUX_FILE => 1,
5206 AC_SUBST_TRACE => 1,
5207 AM_AUTOMAKE_VERSION => 1,
5208 AM_CONDITIONAL => 2,
5209 AM_ENABLE_MULTILIB => 0,
5210 AM_GNU_GETTEXT => 0,
5211 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5212 AM_INIT_AUTOMAKE => 0,
5213 AM_MAINTAINER_MODE => 0,
5214 AM_PROG_CC_C_O => 0,
5215 _AM_SUBST_NOTMAKE => 1,
5216 _AM_COND_IF => 1,
5217 _AM_COND_ELSE => 1,
5218 _AM_COND_ENDIF => 1,
5219 LT_SUPPORTED_TAG => 1,
5220 _LT_AC_TAGCONFIG => 0,
5221 m4_include => 1,
5222 m4_sinclude => 1,
5223 sinclude => 1,
5224 );
5226 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
5228 # Use a separator unlikely to be used, not `:', the default, which
5229 # has a precise meaning for AC_CONFIG_FILES and so on.
5230 $traces .= join (' ',
5231 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5232 (keys %traced));
5234 my $tracefh = new Automake::XFile ("$traces $filename |");
5235 verb "reading $traces";
5237 @cond_stack = ();
5238 my $where;
5240 while ($_ = $tracefh->getline)
5241 {
5242 chomp;
5243 my ($here, $depth, @args) = split (/::/);
5244 $where = new Automake::Location $here;
5245 my $macro = $args[0];
5247 prog_error ("unrequested trace `$macro'")
5248 unless exists $traced{$macro};
5250 # Skip and diagnose malformed calls.
5251 if ($#args < $traced{$macro})
5252 {
5253 msg ('syntax', $where, "not enough arguments for $macro");
5254 next;
5255 }
5257 # Alphabetical ordering please.
5258 if ($macro eq 'AC_CANONICAL_BUILD')
5259 {
5260 if ($seen_canonical <= AC_CANONICAL_BUILD)
5261 {
5262 $seen_canonical = AC_CANONICAL_BUILD;
5263 $canonical_location = $where;
5264 }
5265 }
5266 elsif ($macro eq 'AC_CANONICAL_HOST')
5267 {
5268 if ($seen_canonical <= AC_CANONICAL_HOST)
5269 {
5270 $seen_canonical = AC_CANONICAL_HOST;
5271 $canonical_location = $where;
5272 }
5273 }
5274 elsif ($macro eq 'AC_CANONICAL_TARGET')
5275 {
5276 $seen_canonical = AC_CANONICAL_TARGET;
5277 $canonical_location = $where;
5278 }
5279 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5280 {
5281 if ($seen_init_automake)
5282 {
5283 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5284 . "AM_INIT_AUTOMAKE...", partial => 1);
5285 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5286 }
5287 $config_aux_dir = $args[1];
5288 $config_aux_dir_set_in_configure_ac = 1;
5289 $relative_dir = '.';
5290 check_directory ($config_aux_dir, $where);
5291 }
5292 elsif ($macro eq 'AC_CONFIG_FILES')
5293 {
5294 # Look at potential Makefile.am's.
5295 scan_autoconf_config_files ($where, $args[1]);
5296 }
5297 elsif ($macro eq 'AC_CONFIG_HEADERS')
5298 {
5299 foreach my $spec (split (' ', $args[1]))
5300 {
5301 my ($dest, @src) = split (':', $spec);
5302 $ac_config_files_location{$dest} = $where;
5303 push @config_headers, $spec;
5304 }
5305 }
5306 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5307 {
5308 $config_libobj_dir = $args[1];
5309 $relative_dir = '.';
5310 check_directory ($config_libobj_dir, $where);
5311 }
5312 elsif ($macro eq 'AC_CONFIG_LINKS')
5313 {
5314 foreach my $spec (split (' ', $args[1]))
5315 {
5316 my ($dest, $src) = split (':', $spec);
5317 $ac_config_files_location{$dest} = $where;
5318 push @config_links, $spec;
5319 }
5320 }
5321 elsif ($macro eq 'AC_FC_SRCEXT')
5322 {
5323 my $suffix = $args[1];
5324 # These flags are used as %SOURCEFLAG% in depend2.am,
5325 # where the trailing space is important.
5326 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5327 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5328 }
5329 elsif ($macro eq 'AC_INIT')
5330 {
5331 if (defined $args[2])
5332 {
5333 $package_version = $args[2];
5334 $package_version_location = $where;
5335 }
5336 }
5337 elsif ($macro eq 'AC_LIBSOURCE')
5338 {
5339 $libsources{$args[1]} = $here;
5340 }
5341 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5342 {
5343 # Only remember the first time a file is required.
5344 $required_aux_file{$args[1]} = $where
5345 unless exists $required_aux_file{$args[1]};
5346 }
5347 elsif ($macro eq 'AC_SUBST_TRACE')
5348 {
5349 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5350 # AC_SUBST(5), then too bad.
5351 $configure_vars{$args[1]} = $where
5352 if $args[1] =~ /^\w+$/;
5353 }
5354 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5355 {
5356 error ($where,
5357 "version mismatch. This is Automake $VERSION,\n" .
5358 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5359 "comes from Automake $args[1]. You should recreate\n" .
5360 "aclocal.m4 with aclocal and run automake again.\n",
5361 # $? = 63 is used to indicate version mismatch to missing.
5362 exit_code => 63)
5363 if $VERSION ne $args[1];
5365 $seen_automake_version = 1;
5366 }
5367 elsif ($macro eq 'AM_CONDITIONAL')
5368 {
5369 $configure_cond{$args[1]} = $where;
5370 }
5371 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5372 {
5373 $seen_multilib = $where;
5374 }
5375 elsif ($macro eq 'AM_GNU_GETTEXT')
5376 {
5377 $seen_gettext = $where;
5378 $ac_gettext_location = $where;
5379 $seen_gettext_external = grep ($_ eq 'external', @args);
5380 }
5381 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5382 {
5383 $seen_gettext_intl = $where;
5384 }
5385 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5386 {
5387 $seen_init_automake = $where;
5388 if (defined $args[2])
5389 {
5390 $package_version = $args[2];
5391 $package_version_location = $where;
5392 }
5393 elsif (defined $args[1])
5394 {
5395 exit $exit_code
5396 if (process_global_option_list ($where,
5397 split (' ', $args[1])));
5398 }
5399 }
5400 elsif ($macro eq 'AM_MAINTAINER_MODE')
5401 {
5402 $seen_maint_mode = $where;
5403 }
5404 elsif ($macro eq 'AM_PROG_CC_C_O')
5405 {
5406 $seen_cc_c_o = $where;
5407 }
5408 elsif ($macro eq '_AM_COND_IF')
5409 {
5410 cond_stack_if ('', $args[1], $where);
5411 error ($where, "missing m4 quoting, macro depth $depth")
5412 if ($depth != 1);
5413 }
5414 elsif ($macro eq '_AM_COND_ELSE')
5415 {
5416 cond_stack_else ('!', $args[1], $where);
5417 error ($where, "missing m4 quoting, macro depth $depth")
5418 if ($depth != 1);
5419 }
5420 elsif ($macro eq '_AM_COND_ENDIF')
5421 {
5422 cond_stack_endif (undef, undef, $where);
5423 error ($where, "missing m4 quoting, macro depth $depth")
5424 if ($depth != 1);
5425 }
5426 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5427 {
5428 $ignored_configure_vars{$args[1]} = $where;
5429 }
5430 elsif ($macro eq 'm4_include'
5431 || $macro eq 'm4_sinclude'
5432 || $macro eq 'sinclude')
5433 {
5434 # Skip missing `sinclude'd files.
5435 next if $macro ne 'm4_include' && ! -f $args[1];
5437 # Some modified versions of Autoconf don't use
5438 # frozen files. Consequently it's possible that we see all
5439 # m4_include's performed during Autoconf's startup.
5440 # Obviously we don't want to distribute Autoconf's files
5441 # so we skip absolute filenames here.
5442 push @configure_deps, '$(top_srcdir)/' . $args[1]
5443 unless $here =~ m,^(?:\w:)?[\\/],;
5444 # Keep track of the greatest timestamp.
5445 if (-e $args[1])
5446 {
5447 my $mtime = mtime $args[1];
5448 $configure_deps_greatest_timestamp = $mtime
5449 if $mtime > $configure_deps_greatest_timestamp;
5450 }
5451 }
5452 elsif ($macro eq 'LT_SUPPORTED_TAG')
5453 {
5454 $libtool_tags{$args[1]} = 1;
5455 $libtool_new_api = 1;
5456 }
5457 elsif ($macro eq '_LT_AC_TAGCONFIG')
5458 {
5459 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5460 # We use it to detect whether tags are supported. Our
5461 # preferred interface is LT_SUPPORTED_TAG, but it was
5462 # introduced in Libtool 1.6.
5463 if (0 == keys %libtool_tags)
5464 {
5465 # Hardcode the tags supported by Libtool 1.5.
5466 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5467 }
5468 }
5469 }
5471 error ($where, "condition stack not properly closed")
5472 if (@cond_stack);
5474 $tracefh->close;
5475 }
5478 # &scan_autoconf_files ()
5479 # -----------------------
5480 # Check whether we use `configure.ac' or `configure.in'.
5481 # Scan it (and possibly `aclocal.m4') for interesting things.
5482 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5483 sub scan_autoconf_files ()
5484 {
5485 # Reinitialize libsources here. This isn't really necessary,
5486 # since we currently assume there is only one configure.ac. But
5487 # that won't always be the case.
5488 %libsources = ();
5490 # Keep track of the youngest configure dependency.
5491 $configure_deps_greatest_timestamp = mtime $configure_ac;
5492 if (-e 'aclocal.m4')
5493 {
5494 my $mtime = mtime 'aclocal.m4';
5495 $configure_deps_greatest_timestamp = $mtime
5496 if $mtime > $configure_deps_greatest_timestamp;
5497 }
5499 scan_autoconf_traces ($configure_ac);
5501 @configure_input_files = sort keys %make_list;
5502 # Set input and output files if not specified by user.
5503 if (! @input_files)
5504 {
5505 @input_files = @configure_input_files;
5506 %output_files = %make_list;
5507 }
5510 if (! $seen_init_automake)
5511 {
5512 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5513 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5514 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5515 . "and that aclocal.m4 was recently regenerated "
5516 . "(using aclocal).");
5517 }
5518 else
5519 {
5520 if (! $seen_automake_version)
5521 {
5522 if (-f 'aclocal.m4')
5523 {
5524 error ($seen_init_automake,
5525 "your implementation of AM_INIT_AUTOMAKE comes from " .
5526 "an\nold Automake version. You should recreate " .
5527 "aclocal.m4\nwith aclocal and run automake again.\n",
5528 # $? = 63 is used to indicate version mismatch to missing.
5529 exit_code => 63);
5530 }
5531 else
5532 {
5533 error ($seen_init_automake,
5534 "no proper implementation of AM_INIT_AUTOMAKE was " .
5535 "found,\nprobably because aclocal.m4 is missing...\n" .
5536 "You should run aclocal to create this file, then\n" .
5537 "run automake again.\n");
5538 }
5539 }
5540 }
5542 locate_aux_dir ();
5544 # Reorder @input_files so that the Makefile that distributes aux
5545 # files is processed last. This is important because each directory
5546 # can require auxiliary scripts and we should wait until they have
5547 # been installed before distributing them.
5549 # The Makefile.in that distribute the aux files is the one in
5550 # $config_aux_dir or the top-level Makefile.
5551 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5552 my @new_input_files = ();
5553 while (@input_files)
5554 {
5555 my $in = pop @input_files;
5556 my @ins = split (/:/, $output_files{$in});
5557 if (dirname ($ins[0]) eq $auxdirdist)
5558 {
5559 push @new_input_files, $in;
5560 $automake_will_process_aux_dir = 1;
5561 }
5562 else
5563 {
5564 unshift @new_input_files, $in;
5565 }
5566 }
5567 @input_files = @new_input_files;
5569 # If neither the auxdir/Makefile nor the ./Makefile are generated
5570 # by Automake, we won't distribute the aux files anyway. Assume
5571 # the user know what (s)he does, and pretend we will distribute
5572 # them to disable the error in require_file_internal.
5573 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5575 # Look for some files we need. Always check for these. This
5576 # check must be done for every run, even those where we are only
5577 # looking at a subdir Makefile. We must set relative_dir for
5578 # maybe_push_required_file to work.
5579 # Sort the files for stable verbose output.
5580 $relative_dir = '.';
5581 foreach my $file (sort keys %required_aux_file)
5582 {
5583 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5584 }
5585 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5586 if -f $config_aux_dir . '/install.sh';
5588 # Preserve dist_common for later.
5589 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5591 }
5593 ################################################################
5595 # Set up for Cygnus mode.
5596 sub check_cygnus
5597 {
5598 my $cygnus = option 'cygnus';
5599 return unless $cygnus;
5601 set_strictness ('foreign');
5602 set_option ('no-installinfo', $cygnus);
5603 set_option ('no-dependencies', $cygnus);
5604 set_option ('no-dist', $cygnus);
5606 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5607 if !$seen_maint_mode;
5608 }
5610 # Do any extra checking for GNU standards.
5611 sub check_gnu_standards
5612 {
5613 if ($relative_dir eq '.')
5614 {
5615 # In top level (or only) directory.
5616 require_file ("$am_file.am", GNU,
5617 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5619 # Accept one of these three licenses; default to COPYING.
5620 # Make sure we do not overwrite an existing license.
5621 my $license;
5622 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5623 {
5624 if (-f $_)
5625 {
5626 $license = $_;
5627 last;
5628 }
5629 }
5630 require_file ("$am_file.am", GNU, 'COPYING')
5631 unless $license;
5632 }
5634 for my $opt ('no-installman', 'no-installinfo')
5635 {
5636 msg ('error-gnu', option $opt,
5637 "option `$opt' disallowed by GNU standards")
5638 if option $opt;
5639 }
5640 }
5642 # Do any extra checking for GNITS standards.
5643 sub check_gnits_standards
5644 {
5645 if ($relative_dir eq '.')
5646 {
5647 # In top level (or only) directory.
5648 require_file ("$am_file.am", GNITS, 'THANKS');
5649 }
5650 }
5652 ################################################################
5653 #
5654 # Functions to handle files of each language.
5656 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5657 # simple formula: Return value is LANG_SUBDIR if the resulting object
5658 # file should be in a subdir if the source file is, LANG_PROCESS if
5659 # file is to be dealt with, LANG_IGNORE otherwise.
5661 # Much of the actual processing is handled in
5662 # handle_single_transform. These functions exist so that
5663 # auxiliary information can be recorded for a later cleanup pass.
5664 # Note that the calls to these functions are computed, so don't bother
5665 # searching for their precise names in the source.
5667 # This is just a convenience function that can be used to determine
5668 # when a subdir object should be used.
5669 sub lang_sub_obj
5670 {
5671 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5672 }
5674 # Rewrite a single C source file.
5675 sub lang_c_rewrite
5676 {
5677 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5679 if (option 'ansi2knr' && $base =~ /_$/)
5680 {
5681 # FIXME: include line number in error.
5682 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5683 }
5685 my $r = LANG_PROCESS;
5686 if (option 'subdir-objects')
5687 {
5688 $r = LANG_SUBDIR;
5689 if ($directory && $directory ne '.')
5690 {
5691 $base = $directory . '/' . $base;
5693 # libtool is always able to put the object at the proper place,
5694 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5695 msg_var ('portability', $var,
5696 "compiling `$base.c' in subdir requires "
5697 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5698 uniq_scope => US_GLOBAL,
5699 uniq_part => 'AM_PROG_CC_C_O subdir')
5700 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5701 }
5703 # In this case we already have the directory information, so
5704 # don't add it again.
5705 $de_ansi_files{$base} = '';
5706 }
5707 else
5708 {
5709 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5710 ? ''
5711 : "$directory/");
5712 }
5714 if (! $seen_cc_c_o
5715 && $have_per_exec_flags
5716 && ! option 'subdir-objects'
5717 && $nonansi_obj ne '.lo')
5718 {
5719 msg_var ('portability',
5720 $var, "compiling `$base.c' with per-target flags requires "
5721 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5722 uniq_scope => US_GLOBAL,
5723 uniq_part => 'AM_PROG_CC_C_O per-target')
5724 }
5726 return $r;
5727 }
5729 # Rewrite a single C++ source file.
5730 sub lang_cxx_rewrite
5731 {
5732 return &lang_sub_obj;
5733 }
5735 # Rewrite a single header file.
5736 sub lang_header_rewrite
5737 {
5738 # Header files are simply ignored.
5739 return LANG_IGNORE;
5740 }
5742 # Rewrite a single yacc file.
5743 sub lang_yacc_rewrite
5744 {
5745 my ($directory, $base, $ext) = @_;
5747 my $r = &lang_sub_obj;
5748 (my $newext = $ext) =~ tr/y/c/;
5749 return ($r, $newext);
5750 }
5752 # Rewrite a single yacc++ file.
5753 sub lang_yaccxx_rewrite
5754 {
5755 my ($directory, $base, $ext) = @_;
5757 my $r = &lang_sub_obj;
5758 (my $newext = $ext) =~ tr/y/c/;
5759 return ($r, $newext);
5760 }
5762 # Rewrite a single lex file.
5763 sub lang_lex_rewrite
5764 {
5765 my ($directory, $base, $ext) = @_;
5767 my $r = &lang_sub_obj;
5768 (my $newext = $ext) =~ tr/l/c/;
5769 return ($r, $newext);
5770 }
5772 # Rewrite a single lex++ file.
5773 sub lang_lexxx_rewrite
5774 {
5775 my ($directory, $base, $ext) = @_;
5777 my $r = &lang_sub_obj;
5778 (my $newext = $ext) =~ tr/l/c/;
5779 return ($r, $newext);
5780 }
5782 # Rewrite a single assembly file.
5783 sub lang_asm_rewrite
5784 {
5785 return &lang_sub_obj;
5786 }
5788 # Rewrite a single preprocessed assembly file.
5789 sub lang_cppasm_rewrite
5790 {
5791 return &lang_sub_obj;
5792 }
5794 # Rewrite a single Fortran 77 file.
5795 sub lang_f77_rewrite
5796 {
5797 return &lang_sub_obj;
5798 }
5800 # Rewrite a single Fortran file.
5801 sub lang_fc_rewrite
5802 {
5803 return &lang_sub_obj;
5804 }
5806 # Rewrite a single preprocessed Fortran file.
5807 sub lang_ppfc_rewrite
5808 {
5809 return &lang_sub_obj;
5810 }
5812 # Rewrite a single preprocessed Fortran 77 file.
5813 sub lang_ppf77_rewrite
5814 {
5815 return &lang_sub_obj;
5816 }
5818 # Rewrite a single ratfor file.
5819 sub lang_ratfor_rewrite
5820 {
5821 return &lang_sub_obj;
5822 }
5824 # Rewrite a single Objective C file.
5825 sub lang_objc_rewrite
5826 {
5827 return &lang_sub_obj;
5828 }
5830 # Rewrite a single Unified Parallel C file.
5831 sub lang_upc_rewrite
5832 {
5833 return &lang_sub_obj;
5834 }
5836 # Rewrite a single Java file.
5837 sub lang_java_rewrite
5838 {
5839 return LANG_SUBDIR;
5840 }
5842 # The lang_X_finish functions are called after all source file
5843 # processing is done. Each should handle defining rules for the
5844 # language, etc. A finish function is only called if a source file of
5845 # the appropriate type has been seen.
5847 sub lang_c_finish
5848 {
5849 # Push all libobjs files onto de_ansi_files. We actually only
5850 # push files which exist in the current directory, and which are
5851 # genuine source files.
5852 foreach my $file (keys %libsources)
5853 {
5854 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5855 {
5856 $de_ansi_files{$1} = ''
5857 }
5858 }
5860 if (option 'ansi2knr' && keys %de_ansi_files)
5861 {
5862 # Make all _.c files depend on their corresponding .c files.
5863 my @objects;
5864 foreach my $base (sort keys %de_ansi_files)
5865 {
5866 # Each _.c file must depend on ansi2knr; otherwise it
5867 # might be used in a parallel build before it is built.
5868 # We need to support files in the srcdir and in the build
5869 # dir (because these files might be auto-generated. But
5870 # we can't use $< -- some makes only define $< during a
5871 # suffix rule.
5872 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5873 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5874 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5875 . '`if test -f $(srcdir)/' . $ansfile
5876 . '; then echo $(srcdir)/' . $ansfile
5877 . '; else echo ' . $ansfile . '; fi` '
5878 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5879 . '| $(ANSI2KNR) > $@'
5880 # If ansi2knr fails then we shouldn't
5881 # create the _.c file
5882 . " || rm -f \$\@\n");
5883 push (@objects, $base . '_.$(OBJEXT)');
5884 push (@objects, $base . '_.lo')
5885 if var ('LIBTOOL');
5887 # Explicitly clean the _.c files if they are in a
5888 # subdirectory. (In the current directory they get erased
5889 # by a `rm -f *_.c' rule.)
5890 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5891 if dirname ($base) ne '.';
5892 }
5894 # Make all _.o (and _.lo) files depend on ansi2knr.
5895 # Use a sneaky little hack to make it print nicely.
5896 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5897 }
5898 }
5900 # This is a yacc helper which is called whenever we have decided to
5901 # compile a yacc file.
5902 sub lang_yacc_target_hook
5903 {
5904 my ($self, $aggregate, $output, $input, %transform) = @_;
5906 my $flag = $aggregate . "_YFLAGS";
5907 my $flagvar = var $flag;
5908 my $YFLAGSvar = var 'YFLAGS';
5909 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5910 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5911 {
5912 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5913 my $header = $output_base . '.h';
5915 # Found a `-d' that applies to the compilation of this file.
5916 # Add a dependency for the generated header file, and arrange
5917 # for that file to be included in the distribution.
5918 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5919 RULE_AUTOMAKE, TRUE,
5920 INTERNAL))
5921 {
5922 my $condstr = $cond->subst_string;
5923 $output_rules .=
5924 "$condstr${header}: $output\n"
5925 # Recover from removal of $header
5926 . "$condstr\t\@if test ! -f \$@; then \\\n"
5927 . "$condstr\t rm -f $output; \\\n"
5928 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
5929 . "$condstr\telse :; fi\n";
5930 }
5931 # Distribute the generated file, unless its .y source was
5932 # listed in a nodist_ variable. (&handle_source_transform
5933 # will set DIST_SOURCE.)
5934 &push_dist_common ($header)
5935 if $transform{'DIST_SOURCE'};
5937 # If the files are built in the build directory, then we want
5938 # to remove them with `make clean'. If they are in srcdir
5939 # they shouldn't be touched. However, we can't determine this
5940 # statically, and the GNU rules say that yacc/lex output files
5941 # should be removed by maintainer-clean. So that's what we
5942 # do.
5943 $clean_files{$header} = MAINTAINER_CLEAN;
5944 }
5945 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5946 # See the comment above for $HEADER.
5947 $clean_files{$output} = MAINTAINER_CLEAN;
5948 }
5950 # This is a lex helper which is called whenever we have decided to
5951 # compile a lex file.
5952 sub lang_lex_target_hook
5953 {
5954 my ($self, $aggregate, $output, $input) = @_;
5955 # If the files are built in the build directory, then we want to
5956 # remove them with `make clean'. If they are in srcdir they
5957 # shouldn't be touched. However, we can't determine this
5958 # statically, and the GNU rules say that yacc/lex output files
5959 # should be removed by maintainer-clean. So that's what we do.
5960 $clean_files{$output} = MAINTAINER_CLEAN;
5961 }
5963 # This is a helper for both lex and yacc.
5964 sub yacc_lex_finish_helper
5965 {
5966 return if defined $language_scratch{'lex-yacc-done'};
5967 $language_scratch{'lex-yacc-done'} = 1;
5969 # FIXME: for now, no line number.
5970 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5971 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5972 }
5974 sub lang_yacc_finish
5975 {
5976 return if defined $language_scratch{'yacc-done'};
5977 $language_scratch{'yacc-done'} = 1;
5979 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5981 yacc_lex_finish_helper;
5982 }
5985 sub lang_lex_finish
5986 {
5987 return if defined $language_scratch{'lex-done'};
5988 $language_scratch{'lex-done'} = 1;
5990 yacc_lex_finish_helper;
5991 }
5994 # Given a hash table of linker names, pick the name that has the most
5995 # precedence. This is lame, but something has to have global
5996 # knowledge in order to eliminate the conflict. Add more linkers as
5997 # required.
5998 sub resolve_linker
5999 {
6000 my (%linkers) = @_;
6002 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6003 {
6004 return $l if defined $linkers{$l};
6005 }
6006 return 'LINK';
6007 }
6009 # Called to indicate that an extension was used.
6010 sub saw_extension
6011 {
6012 my ($ext) = @_;
6013 if (! defined $extension_seen{$ext})
6014 {
6015 $extension_seen{$ext} = 1;
6016 }
6017 else
6018 {
6019 ++$extension_seen{$ext};
6020 }
6021 }
6023 # Return the number of files seen for a given language. Knows about
6024 # special cases we care about. FIXME: this is hideous. We need
6025 # something that involves real language objects. For instance yacc
6026 # and yaccxx could both derive from a common yacc class which would
6027 # know about the strange ylwrap requirement. (Or better yet we could
6028 # just not support legacy yacc!)
6029 sub count_files_for_language
6030 {
6031 my ($name) = @_;
6033 my @names;
6034 if ($name eq 'yacc' || $name eq 'yaccxx')
6035 {
6036 @names = ('yacc', 'yaccxx');
6037 }
6038 elsif ($name eq 'lex' || $name eq 'lexxx')
6039 {
6040 @names = ('lex', 'lexxx');
6041 }
6042 else
6043 {
6044 @names = ($name);
6045 }
6047 my $r = 0;
6048 foreach $name (@names)
6049 {
6050 my $lang = $languages{$name};
6051 foreach my $ext (@{$lang->extensions})
6052 {
6053 $r += $extension_seen{$ext}
6054 if defined $extension_seen{$ext};
6055 }
6056 }
6058 return $r
6059 }
6061 # Called to ask whether source files have been seen . If HEADERS is 1,
6062 # headers can be included.
6063 sub saw_sources_p
6064 {
6065 my ($headers) = @_;
6067 # count all the sources
6068 my $count = 0;
6069 foreach my $val (values %extension_seen)
6070 {
6071 $count += $val;
6072 }
6074 if (!$headers)
6075 {
6076 $count -= count_files_for_language ('header');
6077 }
6079 return $count > 0;
6080 }
6083 # register_language (%ATTRIBUTE)
6084 # ------------------------------
6085 # Register a single language.
6086 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6087 sub register_language (%)
6088 {
6089 my (%option) = @_;
6091 # Set the defaults.
6092 $option{'ansi'} = 0
6093 unless defined $option{'ansi'};
6094 $option{'autodep'} = 'no'
6095 unless defined $option{'autodep'};
6096 $option{'linker'} = ''
6097 unless defined $option{'linker'};
6098 $option{'flags'} = []
6099 unless defined $option{'flags'};
6100 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6101 unless defined $option{'output_extensions'};
6102 $option{'nodist_specific'} = 0
6103 unless defined $option{'nodist_specific'};
6105 my $lang = new Language (%option);
6107 # Fill indexes.
6108 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6109 $languages{$lang->name} = $lang;
6110 my $link = $lang->linker;
6111 if ($link)
6112 {
6113 if (exists $link_languages{$link})
6114 {
6115 prog_error ("`$link' has different definitions in "
6116 . $lang->name . " and " . $link_languages{$link}->name)
6117 if $lang->link ne $link_languages{$link}->link;
6118 }
6119 else
6120 {
6121 $link_languages{$link} = $lang;
6122 }
6123 }
6125 # Update the pattern of known extensions.
6126 accept_extensions (@{$lang->extensions});
6128 # Upate the $suffix_rule map.
6129 foreach my $suffix (@{$lang->extensions})
6130 {
6131 foreach my $dest (&{$lang->output_extensions} ($suffix))
6132 {
6133 register_suffix_rule (INTERNAL, $suffix, $dest);
6134 }
6135 }
6136 }
6138 # derive_suffix ($EXT, $OBJ)
6139 # --------------------------
6140 # This function is used to find a path from a user-specified suffix $EXT
6141 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6142 sub derive_suffix ($$)
6143 {
6144 my ($source_ext, $obj) = @_;
6146 while (! $extension_map{$source_ext}
6147 && $source_ext ne $obj
6148 && exists $suffix_rules->{$source_ext}
6149 && exists $suffix_rules->{$source_ext}{$obj})
6150 {
6151 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6152 }
6154 return $source_ext;
6155 }
6158 ################################################################
6160 # Pretty-print something and append to output_rules.
6161 sub pretty_print_rule
6162 {
6163 $output_rules .= &makefile_wrap (@_);
6164 }
6167 ################################################################
6170 ## -------------------------------- ##
6171 ## Handling the conditional stack. ##
6172 ## -------------------------------- ##
6175 # $STRING
6176 # make_conditional_string ($NEGATE, $COND)
6177 # ----------------------------------------
6178 sub make_conditional_string ($$)
6179 {
6180 my ($negate, $cond) = @_;
6181 $cond = "${cond}_TRUE"
6182 unless $cond =~ /^TRUE|FALSE$/;
6183 $cond = Automake::Condition::conditional_negate ($cond)
6184 if $negate;
6185 return $cond;
6186 }
6189 my %_am_macro_for_cond =
6190 (
6191 AMDEP => "one of the compiler tests\n"
6192 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6193 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6194 am__fastdepCC => 'AC_PROG_CC',
6195 am__fastdepCCAS => 'AM_PROG_AS',
6196 am__fastdepCXX => 'AC_PROG_CXX',
6197 am__fastdepGCJ => 'AM_PROG_GCJ',
6198 am__fastdepOBJC => 'AC_PROG_OBJC',
6199 am__fastdepUPC => 'AM_PROG_UPC'
6200 );
6202 # $COND
6203 # cond_stack_if ($NEGATE, $COND, $WHERE)
6204 # --------------------------------------
6205 sub cond_stack_if ($$$)
6206 {
6207 my ($negate, $cond, $where) = @_;
6209 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6210 {
6211 my $text = "$cond does not appear in AM_CONDITIONAL";
6212 my $scope = US_LOCAL;
6213 if (exists $_am_macro_for_cond{$cond})
6214 {
6215 my $mac = $_am_macro_for_cond{$cond};
6216 $text .= "\n The usual way to define `$cond' is to add ";
6217 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6218 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6219 # These warnings appear in Automake files (depend2.am),
6220 # so there is no need to display them more than once:
6221 $scope = US_GLOBAL;
6222 }
6223 error $where, $text, uniq_scope => $scope;
6224 }
6226 push (@cond_stack, make_conditional_string ($negate, $cond));
6228 return new Automake::Condition (@cond_stack);
6229 }
6232 # $COND
6233 # cond_stack_else ($NEGATE, $COND, $WHERE)
6234 # ----------------------------------------
6235 sub cond_stack_else ($$$)
6236 {
6237 my ($negate, $cond, $where) = @_;
6239 if (! @cond_stack)
6240 {
6241 error $where, "else without if";
6242 return FALSE;
6243 }
6245 $cond_stack[$#cond_stack] =
6246 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6248 # If $COND is given, check against it.
6249 if (defined $cond)
6250 {
6251 $cond = make_conditional_string ($negate, $cond);
6253 error ($where, "else reminder ($negate$cond) incompatible with "
6254 . "current conditional: $cond_stack[$#cond_stack]")
6255 if $cond_stack[$#cond_stack] ne $cond;
6256 }
6258 return new Automake::Condition (@cond_stack);
6259 }
6262 # $COND
6263 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6264 # -----------------------------------------
6265 sub cond_stack_endif ($$$)
6266 {
6267 my ($negate, $cond, $where) = @_;
6268 my $old_cond;
6270 if (! @cond_stack)
6271 {
6272 error $where, "endif without if";
6273 return TRUE;
6274 }
6276 # If $COND is given, check against it.
6277 if (defined $cond)
6278 {
6279 $cond = make_conditional_string ($negate, $cond);
6281 error ($where, "endif reminder ($negate$cond) incompatible with "
6282 . "current conditional: $cond_stack[$#cond_stack]")
6283 if $cond_stack[$#cond_stack] ne $cond;
6284 }
6286 pop @cond_stack;
6288 return new Automake::Condition (@cond_stack);
6289 }
6295 ## ------------------------ ##
6296 ## Handling the variables. ##
6297 ## ------------------------ ##
6300 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6301 # -----------------------------------------------------
6302 # Like define_variable, but the value is a list, and the variable may
6303 # be defined conditionally. The second argument is the condition
6304 # under which the value should be defined; this should be the empty
6305 # string to define the variable unconditionally. The third argument
6306 # is a list holding the values to use for the variable. The value is
6307 # pretty printed in the output file.
6308 sub define_pretty_variable ($$$@)
6309 {
6310 my ($var, $cond, $where, @value) = @_;
6312 if (! vardef ($var, $cond))
6313 {
6314 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6315 '', $where, VAR_PRETTY);
6316 rvar ($var)->rdef ($cond)->set_seen;
6317 }
6318 }
6321 # define_variable ($VAR, $VALUE, $WHERE)
6322 # --------------------------------------
6323 # Define a new Automake Makefile variable VAR to VALUE, but only if
6324 # not already defined.
6325 sub define_variable ($$$)
6326 {
6327 my ($var, $value, $where) = @_;
6328 define_pretty_variable ($var, TRUE, $where, $value);
6329 }
6332 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6333 # -----------------------------------------------------------
6334 # Define the $VAR which content is the list of file names composed of
6335 # a @BASENAME and the $EXTENSION.
6336 sub define_files_variable ($\@$$)
6337 {
6338 my ($var, $basename, $extension, $where) = @_;
6339 define_variable ($var,
6340 join (' ', map { "$_.$extension" } @$basename),
6341 $where);
6342 }
6345 # Like define_variable, but define a variable to be the configure
6346 # substitution by the same name.
6347 sub define_configure_variable ($)
6348 {
6349 my ($var) = @_;
6351 my $pretty = VAR_ASIS;
6352 my $owner = VAR_CONFIGURE;
6354 # Some variables we do not want to output. For instance it
6355 # would be a bad idea to output `U = @U@` when `@U@` can be
6356 # substituted as `\`.
6357 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6359 # ANSI2KNR is a variable that Automake wants to redefine, so
6360 # it must be owned by Automake. (It is also used as a proof
6361 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6362 # omit the AC_SUBST.)
6363 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6365 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6366 '', $configure_vars{$var}, $pretty);
6367 }
6370 # define_compiler_variable ($LANG)
6371 # --------------------------------
6372 # Define a compiler variable. We also handle defining the `LT'
6373 # version of the command when using libtool.
6374 sub define_compiler_variable ($)
6375 {
6376 my ($lang) = @_;
6378 my ($var, $value) = ($lang->compiler, $lang->compile);
6379 my $libtool_tag = '';
6380 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6381 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6382 &define_variable ($var, $value, INTERNAL);
6383 if (var ('LIBTOOL'))
6384 {
6385 my $verbose = define_verbose_libtool ();
6386 &define_variable ("LT$var",
6387 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6388 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6389 INTERNAL);
6390 }
6391 define_verbose_tagvar ($lang->ccer || 'GEN');
6392 }
6395 # define_linker_variable ($LANG)
6396 # ------------------------------
6397 # Define linker variables.
6398 sub define_linker_variable ($)
6399 {
6400 my ($lang) = @_;
6402 my $libtool_tag = '';
6403 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6404 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6405 # CCLD = $(CC).
6406 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6407 # CCLINK = $(CCLD) blah blah...
6408 my $link = '';
6409 if (var ('LIBTOOL'))
6410 {
6411 my $verbose = define_verbose_libtool ();
6412 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6413 . "\$(LIBTOOLFLAGS) --mode=link ";
6414 }
6415 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6416 &define_variable ($lang->compiler, $lang);
6417 &define_verbose_tagvar ($lang->lder || 'GEN');
6418 }
6420 sub define_per_target_linker_variable ($$)
6421 {
6422 my ($linker, $target) = @_;
6424 # If the user wrote a custom link command, we don't define ours.
6425 return "${target}_LINK"
6426 if set_seen "${target}_LINK";
6428 my $xlink = $linker ? $linker : 'LINK';
6430 my $lang = $link_languages{$xlink};
6431 prog_error "Unknown language for linker variable `$xlink'"
6432 unless $lang;
6434 my $link_command = $lang->link;
6435 if (var 'LIBTOOL')
6436 {
6437 my $libtool_tag = '';
6438 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6439 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6441 my $verbose = define_verbose_libtool ();
6442 $link_command =
6443 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6444 . "--mode=link " . $link_command;
6445 }
6447 # Rewrite each occurrence of `AM_$flag' in the link
6448 # command into `${derived}_$flag' if it exists.
6449 my $orig_command = $link_command;
6450 my @flags = (@{$lang->flags}, 'LDFLAGS');
6451 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6452 for my $flag (@flags)
6453 {
6454 my $val = "${target}_$flag";
6455 $link_command =~ s/\(AM_$flag\)/\($val\)/
6456 if set_seen ($val);
6457 }
6459 # If the computed command is the same as the generic command, use
6460 # the command linker variable.
6461 return ($lang->linker, $lang->lder)
6462 if $link_command eq $orig_command;
6464 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6465 return ("${target}_LINK", $lang->lder);
6466 }
6468 ################################################################
6470 # &check_trailing_slash ($WHERE, $LINE)
6471 # --------------------------------------
6472 # Return 1 iff $LINE ends with a slash.
6473 # Might modify $LINE.
6474 sub check_trailing_slash ($\$)
6475 {
6476 my ($where, $line) = @_;
6478 # Ignore `##' lines.
6479 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6481 # Catch and fix a common error.
6482 msg "syntax", $where, "whitespace following trailing backslash"
6483 if $$line =~ s/\\\s+\n$/\\\n/;
6485 return $$line =~ /\\$/;
6486 }
6489 # &read_am_file ($AMFILE, $WHERE)
6490 # -------------------------------
6491 # Read Makefile.am and set up %contents. Simultaneously copy lines
6492 # from Makefile.am into $output_trailer, or define variables as
6493 # appropriate. NOTE we put rules in the trailer section. We want
6494 # user rules to come after our generated stuff.
6495 sub read_am_file ($$)
6496 {
6497 my ($amfile, $where) = @_;
6499 my $am_file = new Automake::XFile ("< $amfile");
6500 verb "reading $amfile";
6502 # Keep track of the youngest output dependency.
6503 my $mtime = mtime $amfile;
6504 $output_deps_greatest_timestamp = $mtime
6505 if $mtime > $output_deps_greatest_timestamp;
6507 my $spacing = '';
6508 my $comment = '';
6509 my $blank = 0;
6510 my $saw_bk = 0;
6511 my $var_look = VAR_ASIS;
6513 use constant IN_VAR_DEF => 0;
6514 use constant IN_RULE_DEF => 1;
6515 use constant IN_COMMENT => 2;
6516 my $prev_state = IN_RULE_DEF;
6518 while ($_ = $am_file->getline)
6519 {
6520 $where->set ("$amfile:$.");
6521 if (/$IGNORE_PATTERN/o)
6522 {
6523 # Merely delete comments beginning with two hashes.
6524 }
6525 elsif (/$WHITE_PATTERN/o)
6526 {
6527 error $where, "blank line following trailing backslash"
6528 if $saw_bk;
6529 # Stick a single white line before the incoming macro or rule.
6530 $spacing = "\n";
6531 $blank = 1;
6532 # Flush all comments seen so far.
6533 if ($comment ne '')
6534 {
6535 $output_vars .= $comment;
6536 $comment = '';
6537 }
6538 }
6539 elsif (/$COMMENT_PATTERN/o)
6540 {
6541 # Stick comments before the incoming macro or rule. Make
6542 # sure a blank line precedes the first block of comments.
6543 $spacing = "\n" unless $blank;
6544 $blank = 1;
6545 $comment .= $spacing . $_;
6546 $spacing = '';
6547 $prev_state = IN_COMMENT;
6548 }
6549 else
6550 {
6551 last;
6552 }
6553 $saw_bk = check_trailing_slash ($where, $_);
6554 }
6556 # We save the conditional stack on entry, and then check to make
6557 # sure it is the same on exit. This lets us conditionally include
6558 # other files.
6559 my @saved_cond_stack = @cond_stack;
6560 my $cond = new Automake::Condition (@cond_stack);
6562 my $last_var_name = '';
6563 my $last_var_type = '';
6564 my $last_var_value = '';
6565 my $last_where;
6566 # FIXME: shouldn't use $_ in this loop; it is too big.
6567 while ($_)
6568 {
6569 $where->set ("$amfile:$.");
6571 # Make sure the line is \n-terminated.
6572 chomp;
6573 $_ .= "\n";
6575 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6576 # used by users. @MAINT@ is an anachronism now.
6577 $_ =~ s/\@MAINT\@//g
6578 unless $seen_maint_mode;
6580 my $new_saw_bk = check_trailing_slash ($where, $_);
6582 if (/$IGNORE_PATTERN/o)
6583 {
6584 # Merely delete comments beginning with two hashes.
6586 # Keep any backslash from the previous line.
6587 $new_saw_bk = $saw_bk;
6588 }
6589 elsif (/$WHITE_PATTERN/o)
6590 {
6591 # Stick a single white line before the incoming macro or rule.
6592 $spacing = "\n";
6593 error $where, "blank line following trailing backslash"
6594 if $saw_bk;
6595 }
6596 elsif (/$COMMENT_PATTERN/o)
6597 {
6598 error $where, "comment following trailing backslash"
6599 if $saw_bk && $comment eq '';
6601 # Stick comments before the incoming macro or rule.
6602 $comment .= $spacing . $_;
6603 $spacing = '';
6604 $prev_state = IN_COMMENT;
6605 }
6606 elsif ($saw_bk)
6607 {
6608 if ($prev_state == IN_RULE_DEF)
6609 {
6610 my $cond = new Automake::Condition @cond_stack;
6611 $output_trailer .= $cond->subst_string;
6612 $output_trailer .= $_;
6613 }
6614 elsif ($prev_state == IN_COMMENT)
6615 {
6616 # If the line doesn't start with a `#', add it.
6617 # We do this because a continued comment like
6618 # # A = foo \
6619 # bar \
6620 # baz
6621 # is not portable. BSD make doesn't honor
6622 # escaped newlines in comments.
6623 s/^#?/#/;
6624 $comment .= $spacing . $_;
6625 }
6626 else # $prev_state == IN_VAR_DEF
6627 {
6628 $last_var_value .= ' '
6629 unless $last_var_value =~ /\s$/;
6630 $last_var_value .= $_;
6632 if (!/\\$/)
6633 {
6634 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6635 $last_var_type, $cond,
6636 $last_var_value, $comment,
6637 $last_where, VAR_ASIS)
6638 if $cond != FALSE;
6639 $comment = $spacing = '';
6640 }
6641 }
6642 }
6644 elsif (/$IF_PATTERN/o)
6645 {
6646 $cond = cond_stack_if ($1, $2, $where);
6647 }
6648 elsif (/$ELSE_PATTERN/o)
6649 {
6650 $cond = cond_stack_else ($1, $2, $where);
6651 }
6652 elsif (/$ENDIF_PATTERN/o)
6653 {
6654 $cond = cond_stack_endif ($1, $2, $where);
6655 }
6657 elsif (/$RULE_PATTERN/o)
6658 {
6659 # Found a rule.
6660 $prev_state = IN_RULE_DEF;
6662 # For now we have to output all definitions of user rules
6663 # and can't diagnose duplicates (see the comment in
6664 # Automake::Rule::define). So we go on and ignore the return value.
6665 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6667 check_variable_expansions ($_, $where);
6669 $output_trailer .= $comment . $spacing;
6670 my $cond = new Automake::Condition @cond_stack;
6671 $output_trailer .= $cond->subst_string;
6672 $output_trailer .= $_;
6673 $comment = $spacing = '';
6674 }
6675 elsif (/$ASSIGNMENT_PATTERN/o)
6676 {
6677 # Found a macro definition.
6678 $prev_state = IN_VAR_DEF;
6679 $last_var_name = $1;
6680 $last_var_type = $2;
6681 $last_var_value = $3;
6682 $last_where = $where->clone;
6683 if ($3 ne '' && substr ($3, -1) eq "\\")
6684 {
6685 # We preserve the `\' because otherwise the long lines
6686 # that are generated will be truncated by broken
6687 # `sed's.
6688 $last_var_value = $3 . "\n";
6689 }
6690 # Normally we try to output variable definitions in the
6691 # same format they were input. However, POSIX compliant
6692 # systems are not required to support lines longer than
6693 # 2048 bytes (most notably, some sed implementation are
6694 # limited to 4000 bytes, and sed is used by config.status
6695 # to rewrite Makefile.in into Makefile). Moreover nobody
6696 # would really write such long lines by hand since it is
6697 # hardly maintainable. So if a line is longer that 1000
6698 # bytes (an arbitrary limit), assume it has been
6699 # automatically generated by some tools, and flatten the
6700 # variable definition. Otherwise, keep the variable as it
6701 # as been input.
6702 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6704 if (!/\\$/)
6705 {
6706 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6707 $last_var_type, $cond,
6708 $last_var_value, $comment,
6709 $last_where, $var_look)
6710 if $cond != FALSE;
6711 $comment = $spacing = '';
6712 $var_look = VAR_ASIS;
6713 }
6714 }
6715 elsif (/$INCLUDE_PATTERN/o)
6716 {
6717 my $path = $1;
6719 if ($path =~ s/^\$\(top_srcdir\)\///)
6720 {
6721 push (@include_stack, "\$\(top_srcdir\)/$path");
6722 # Distribute any included file.
6724 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6725 # otherwise OSF make will implicitly copy the included
6726 # file in the build tree during `make distdir' to satisfy
6727 # the dependency.
6728 # (subdircond2.test and subdircond3.test will fail.)
6729 push_dist_common ("\$\(top_srcdir\)/$path");
6730 }
6731 else
6732 {
6733 $path =~ s/\$\(srcdir\)\///;
6734 push (@include_stack, "\$\(srcdir\)/$path");
6735 # Always use the $(srcdir) prefix in DIST_COMMON,
6736 # otherwise OSF make will implicitly copy the included
6737 # file in the build tree during `make distdir' to satisfy
6738 # the dependency.
6739 # (subdircond2.test and subdircond3.test will fail.)
6740 push_dist_common ("\$\(srcdir\)/$path");
6741 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6742 }
6743 $where->push_context ("`$path' included from here");
6744 &read_am_file ($path, $where);
6745 $where->pop_context;
6746 }
6747 else
6748 {
6749 # This isn't an error; it is probably a continued rule.
6750 # In fact, this is what we assume.
6751 $prev_state = IN_RULE_DEF;
6752 check_variable_expansions ($_, $where);
6753 $output_trailer .= $comment . $spacing;
6754 my $cond = new Automake::Condition @cond_stack;
6755 $output_trailer .= $cond->subst_string;
6756 $output_trailer .= $_;
6757 $comment = $spacing = '';
6758 error $where, "`#' comment at start of rule is unportable"
6759 if $_ =~ /^\t\s*\#/;
6760 }
6762 $saw_bk = $new_saw_bk;
6763 $_ = $am_file->getline;
6764 }
6766 $output_trailer .= $comment;
6768 error ($where, "trailing backslash on last line")
6769 if $saw_bk;
6771 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6772 : "too many conditionals closed in include file"))
6773 if "@saved_cond_stack" ne "@cond_stack";
6774 }
6777 # define_standard_variables ()
6778 # ----------------------------
6779 # A helper for read_main_am_file which initializes configure variables
6780 # and variables from header-vars.am.
6781 sub define_standard_variables
6782 {
6783 my $saved_output_vars = $output_vars;
6784 my ($comments, undef, $rules) =
6785 file_contents_internal (1, "$libdir/am/header-vars.am",
6786 new Automake::Location);
6788 foreach my $var (sort keys %configure_vars)
6789 {
6790 &define_configure_variable ($var);
6791 }
6793 $output_vars .= $comments . $rules;
6794 }
6796 # Read main am file.
6797 sub read_main_am_file
6798 {
6799 my ($amfile) = @_;
6801 # This supports the strange variable tricks we are about to play.
6802 prog_error (macros_dump () . "variable defined before read_main_am_file")
6803 if (scalar (variables) > 0);
6805 # Generate copyright header for generated Makefile.in.
6806 # We do discard the output of predefined variables, handled below.
6807 $output_vars = ("# $in_file_name generated by automake "
6808 . $VERSION . " from $am_file_name.\n");
6809 $output_vars .= '# ' . subst ('configure_input') . "\n";
6810 $output_vars .= $gen_copyright;
6812 # We want to predefine as many variables as possible. This lets
6813 # the user set them with `+=' in Makefile.am.
6814 &define_standard_variables;
6816 # Read user file, which might override some of our values.
6817 &read_am_file ($amfile, new Automake::Location);
6818 }
6822 ################################################################
6824 # $FLATTENED
6825 # &flatten ($STRING)
6826 # ------------------
6827 # Flatten the $STRING and return the result.
6828 sub flatten
6829 {
6830 $_ = shift;
6832 s/\\\n//somg;
6833 s/\s+/ /g;
6834 s/^ //;
6835 s/ $//;
6837 return $_;
6838 }
6841 # transform_token ($TOKEN, \%PAIRS, $KEY)
6842 # =======================================
6843 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6844 # (which should be ?KEY? or any of the special %% requests)..
6845 sub transform_token ($$$)
6846 {
6847 my ($token, $transform, $key) = @_;
6848 my $res = $transform->{$key};
6849 prog_error "Unknown key `$key' in `$token'" unless defined $res;
6850 return $res;
6851 }
6854 # transform ($TOKEN, \%PAIRS)
6855 # ===========================
6856 # If ($TOKEN, $VAL) is in %PAIRS:
6857 # - replaces %KEY% with $VAL,
6858 # - enables/disables ?KEY? and ?!KEY?,
6859 # - replaces %?KEY% with TRUE or FALSE.
6860 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6861 # IFTRUE / IFFALSE, as appropriate.
6862 sub transform ($$)
6863 {
6864 my ($token, $transform) = @_;
6866 # %KEY%.
6867 # Must be before the following pattern to exclude the case
6868 # when there is neither IFTRUE nor IFFALSE.
6869 if ($token =~ /^%([\w\-]+)%$/)
6870 {
6871 return transform_token ($token, $transform, $1);
6872 }
6873 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6874 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6875 {
6876 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6877 }
6878 # %?KEY%.
6879 elsif ($token =~ /^%\?([\w\-]+)%$/)
6880 {
6881 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6882 }
6883 # ?KEY? and ?!KEY?.
6884 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6885 {
6886 my $neg = ($1 eq '!') ? 1 : 0;
6887 my $val = transform_token ($token, $transform, $2);
6888 return (!!$val == $neg) ? '##%' : '';
6889 }
6890 else
6891 {
6892 prog_error "Unknown request format: $token";
6893 }
6894 }
6897 # @PARAGRAPHS
6898 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6899 # ------------------------------------------
6900 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6901 # paragraphs.
6902 sub make_paragraphs ($%)
6903 {
6904 my ($file, %transform) = @_;
6906 # Complete %transform with global options.
6907 # Note that %transform goes last, so it overrides global options.
6908 %transform = ('CYGNUS' => !! option 'cygnus',
6909 'MAINTAINER-MODE'
6910 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6912 'XZ' => !! option 'dist-xz',
6913 'LZMA' => !! option 'dist-lzma',
6914 'BZIP2' => !! option 'dist-bzip2',
6915 'COMPRESS' => !! option 'dist-tarZ',
6916 'GZIP' => ! option 'no-dist-gzip',
6917 'SHAR' => !! option 'dist-shar',
6918 'ZIP' => !! option 'dist-zip',
6920 'INSTALL-INFO' => ! option 'no-installinfo',
6921 'INSTALL-MAN' => ! option 'no-installman',
6922 'HAVE-MANS' => !! var ('MANS'),
6923 'CK-NEWS' => !! option 'check-news',
6925 'SUBDIRS' => !! var ('SUBDIRS'),
6926 'TOPDIR_P' => $relative_dir eq '.',
6928 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6929 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6930 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6932 'LIBTOOL' => !! var ('LIBTOOL'),
6933 'NONLIBTOOL' => 1,
6934 'FIRST' => ! $transformed_files{$file},
6935 %transform);
6937 $transformed_files{$file} = 1;
6938 $_ = $am_file_cache{$file};
6940 if (! defined $_)
6941 {
6942 verb "reading $file";
6943 # Swallow the whole file.
6944 my $fc_file = new Automake::XFile "< $file";
6945 my $saved_dollar_slash = $/;
6946 undef $/;
6947 $_ = $fc_file->getline;
6948 $/ = $saved_dollar_slash;
6949 $fc_file->close;
6951 # Remove ##-comments.
6952 # Besides we don't need more than two consecutive new-lines.
6953 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6955 $am_file_cache{$file} = $_;
6956 }
6958 # Substitute Automake template tokens.
6959 s/(?: % \?? [\w\-]+ %
6960 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
6961 | \? !? [\w\-]+ \?
6962 )/transform($&, \%transform)/gex;
6963 # transform() may have added some ##%-comments to strip.
6964 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
6965 # ####### and do not remove the latter.)
6966 s/^[ \t]*(?:##%)+.*\n//gm;
6968 # Split at unescaped new lines.
6969 my @lines = split (/(?<!\\)\n/, $_);
6970 my @res;
6972 while (defined ($_ = shift @lines))
6973 {
6974 my $paragraph = $_;
6975 # If we are a rule, eat as long as we start with a tab.
6976 if (/$RULE_PATTERN/smo)
6977 {
6978 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6979 {
6980 $paragraph .= "\n$_";
6981 }
6982 unshift (@lines, $_);
6983 }
6985 # If we are a comments, eat as much comments as you can.
6986 elsif (/$COMMENT_PATTERN/smo)
6987 {
6988 while (defined ($_ = shift @lines)
6989 && $_ =~ /$COMMENT_PATTERN/smo)
6990 {
6991 $paragraph .= "\n$_";
6992 }
6993 unshift (@lines, $_);
6994 }
6996 push @res, $paragraph;
6997 }
6999 return @res;
7000 }
7004 # ($COMMENT, $VARIABLES, $RULES)
7005 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7006 # -------------------------------------------------------------
7007 # Return contents of a file from $libdir/am, automatically skipping
7008 # macros or rules which are already known. $IS_AM iff the caller is
7009 # reading an Automake file (as opposed to the user's Makefile.am).
7010 sub file_contents_internal ($$$%)
7011 {
7012 my ($is_am, $file, $where, %transform) = @_;
7014 $where->set ($file);
7016 my $result_vars = '';
7017 my $result_rules = '';
7018 my $comment = '';
7019 my $spacing = '';
7021 # The following flags are used to track rules spanning across
7022 # multiple paragraphs.
7023 my $is_rule = 0; # 1 if we are processing a rule.
7024 my $discard_rule = 0; # 1 if the current rule should not be output.
7026 # We save the conditional stack on entry, and then check to make
7027 # sure it is the same on exit. This lets us conditionally include
7028 # other files.
7029 my @saved_cond_stack = @cond_stack;
7030 my $cond = new Automake::Condition (@cond_stack);
7032 foreach (make_paragraphs ($file, %transform))
7033 {
7034 # FIXME: no line number available.
7035 $where->set ($file);
7037 # Sanity checks.
7038 error $where, "blank line following trailing backslash:\n$_"
7039 if /\\$/;
7040 error $where, "comment following trailing backslash:\n$_"
7041 if /\\#/;
7043 if (/^$/)
7044 {
7045 $is_rule = 0;
7046 # Stick empty line before the incoming macro or rule.
7047 $spacing = "\n";
7048 }
7049 elsif (/$COMMENT_PATTERN/mso)
7050 {
7051 $is_rule = 0;
7052 # Stick comments before the incoming macro or rule.
7053 $comment = "$_\n";
7054 }
7056 # Handle inclusion of other files.
7057 elsif (/$INCLUDE_PATTERN/o)
7058 {
7059 if ($cond != FALSE)
7060 {
7061 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7062 $where->push_context ("`$file' included from here");
7063 # N-ary `.=' fails.
7064 my ($com, $vars, $rules)
7065 = file_contents_internal ($is_am, $file, $where, %transform);
7066 $where->pop_context;
7067 $comment .= $com;
7068 $result_vars .= $vars;
7069 $result_rules .= $rules;
7070 }
7071 }
7073 # Handling the conditionals.
7074 elsif (/$IF_PATTERN/o)
7075 {
7076 $cond = cond_stack_if ($1, $2, $file);
7077 }
7078 elsif (/$ELSE_PATTERN/o)
7079 {
7080 $cond = cond_stack_else ($1, $2, $file);
7081 }
7082 elsif (/$ENDIF_PATTERN/o)
7083 {
7084 $cond = cond_stack_endif ($1, $2, $file);
7085 }
7087 # Handling rules.
7088 elsif (/$RULE_PATTERN/mso)
7089 {
7090 $is_rule = 1;
7091 $discard_rule = 0;
7092 # Separate relationship from optional actions: the first
7093 # `new-line tab" not preceded by backslash (continuation
7094 # line).
7095 my $paragraph = $_;
7096 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7097 my ($relationship, $actions) = ($1, $2 || '');
7099 # Separate targets from dependencies: the first colon.
7100 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7101 my ($targets, $dependencies) = ($1, $2);
7102 # Remove the escaped new lines.
7103 # I don't know why, but I have to use a tmp $flat_deps.
7104 my $flat_deps = &flatten ($dependencies);
7105 my @deps = split (' ', $flat_deps);
7107 foreach (split (' ', $targets))
7108 {
7109 # FIXME: 1. We are not robust to people defining several targets
7110 # at once, only some of them being in %dependencies. The
7111 # actions from the targets in %dependencies are usually generated
7112 # from the content of %actions, but if some targets in $targets
7113 # are not in %dependencies the ELSE branch will output
7114 # a rule for all $targets (i.e. the targets which are both
7115 # in %dependencies and $targets will have two rules).
7117 # FIXME: 2. The logic here is not able to output a
7118 # multi-paragraph rule several time (e.g. for each condition
7119 # it is defined for) because it only knows the first paragraph.
7121 # FIXME: 3. We are not robust to people defining a subset
7122 # of a previously defined "multiple-target" rule. E.g.
7123 # `foo:' after `foo bar:'.
7125 # Output only if not in FALSE.
7126 if (defined $dependencies{$_} && $cond != FALSE)
7127 {
7128 &depend ($_, @deps);
7129 register_action ($_, $actions);
7130 }
7131 else
7132 {
7133 # Free-lance dependency. Output the rule for all the
7134 # targets instead of one by one.
7135 my @undefined_conds =
7136 Automake::Rule::define ($targets, $file,
7137 $is_am ? RULE_AUTOMAKE : RULE_USER,
7138 $cond, $where);
7139 for my $undefined_cond (@undefined_conds)
7140 {
7141 my $condparagraph = $paragraph;
7142 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7143 $result_rules .= "$spacing$comment$condparagraph\n";
7144 }
7145 if (scalar @undefined_conds == 0)
7146 {
7147 # Remember to discard next paragraphs
7148 # if they belong to this rule.
7149 # (but see also FIXME: #2 above.)
7150 $discard_rule = 1;
7151 }
7152 $comment = $spacing = '';
7153 last;
7154 }
7155 }
7156 }
7158 elsif (/$ASSIGNMENT_PATTERN/mso)
7159 {
7160 my ($var, $type, $val) = ($1, $2, $3);
7161 error $where, "variable `$var' with trailing backslash"
7162 if /\\$/;
7164 $is_rule = 0;
7166 Automake::Variable::define ($var,
7167 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7168 $type, $cond, $val, $comment, $where,
7169 VAR_ASIS)
7170 if $cond != FALSE;
7172 $comment = $spacing = '';
7173 }
7174 else
7175 {
7176 # This isn't an error; it is probably some tokens which
7177 # configure is supposed to replace, such as `@SET-MAKE@',
7178 # or some part of a rule cut by an if/endif.
7179 if (! $cond->false && ! ($is_rule && $discard_rule))
7180 {
7181 s/^/$cond->subst_string/gme;
7182 $result_rules .= "$spacing$comment$_\n";
7183 }
7184 $comment = $spacing = '';
7185 }
7186 }
7188 error ($where, @cond_stack ?
7189 "unterminated conditionals: @cond_stack" :
7190 "too many conditionals closed in include file")
7191 if "@saved_cond_stack" ne "@cond_stack";
7193 return ($comment, $result_vars, $result_rules);
7194 }
7197 # $CONTENTS
7198 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7199 # ------------------------------------------------
7200 # Return contents of a file from $libdir/am, automatically skipping
7201 # macros or rules which are already known.
7202 sub file_contents ($$%)
7203 {
7204 my ($basename, $where, %transform) = @_;
7205 my ($comments, $variables, $rules) =
7206 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7207 %transform);
7208 return "$comments$variables$rules";
7209 }
7212 # @PREFIX
7213 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7214 # -----------------------------------------------------
7215 # Find all variable prefixes that are used for install directories. A
7216 # prefix `zar' qualifies iff:
7217 #
7218 # * `zardir' is a variable.
7219 # * `zar_PRIMARY' is a variable.
7220 #
7221 # As a side effect, it looks for misspellings. It is an error to have
7222 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7223 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7224 # of the same name (with "dir" appended) exists. For instance, if the
7225 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7226 # This is to provide a little extra flexibility in those cases which
7227 # need it.
7228 sub am_primary_prefixes ($$@)
7229 {
7230 my ($primary, $can_dist, @prefixes) = @_;
7232 local $_;
7233 my %valid = map { $_ => 0 } @prefixes;
7234 $valid{'EXTRA'} = 0;
7235 foreach my $var (variables $primary)
7236 {
7237 # Automake is allowed to define variables that look like primaries
7238 # but which aren't. E.g. INSTALL_sh_DATA.
7239 # Autoconf can also define variables like INSTALL_DATA, so
7240 # ignore all configure variables (at least those which are not
7241 # redefined in Makefile.am).
7242 # FIXME: We should make sure that these variables are not
7243 # conditionally defined (or else adjust the condition below).
7244 my $def = $var->def (TRUE);
7245 next if $def && $def->owner != VAR_MAKEFILE;
7247 my $varname = $var->name;
7249 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7250 {
7251 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7252 if ($dist ne '' && ! $can_dist)
7253 {
7254 err_var ($var,
7255 "invalid variable `$varname': `dist' is forbidden");
7256 }
7257 # Standard directories must be explicitly allowed.
7258 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7259 {
7260 err_var ($var,
7261 "`${X}dir' is not a legitimate directory " .
7262 "for `$primary'");
7263 }
7264 # A not explicitly valid directory is allowed if Xdir is defined.
7265 elsif (! defined $valid{$X} &&
7266 $var->requires_variables ("`$varname' is used", "${X}dir"))
7267 {
7268 # Nothing to do. Any error message has been output
7269 # by $var->requires_variables.
7270 }
7271 else
7272 {
7273 # Ensure all extended prefixes are actually used.
7274 $valid{"$base$dist$X"} = 1;
7275 }
7276 }
7277 else
7278 {
7279 prog_error "unexpected variable name: $varname";
7280 }
7281 }
7283 # Return only those which are actually defined.
7284 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7285 }
7288 # Handle `where_HOW' variable magic. Does all lookups, generates
7289 # install code, and possibly generates code to define the primary
7290 # variable. The first argument is the name of the .am file to munge,
7291 # the second argument is the primary variable (e.g. HEADERS), and all
7292 # subsequent arguments are possible installation locations.
7293 #
7294 # Returns list of [$location, $value] pairs, where
7295 # $value's are the values in all where_HOW variable, and $location
7296 # there associated location (the place here their parent variables were
7297 # defined).
7298 #
7299 # FIXME: this should be rewritten to be cleaner. It should be broken
7300 # up into multiple functions.
7301 #
7302 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7303 sub am_install_var
7304 {
7305 my (@args) = @_;
7307 my $do_require = 1;
7308 my $can_dist = 0;
7309 my $default_dist = 0;
7310 while (@args)
7311 {
7312 if ($args[0] eq '-noextra')
7313 {
7314 $do_require = 0;
7315 }
7316 elsif ($args[0] eq '-candist')
7317 {
7318 $can_dist = 1;
7319 }
7320 elsif ($args[0] eq '-defaultdist')
7321 {
7322 $default_dist = 1;
7323 $can_dist = 1;
7324 }
7325 elsif ($args[0] !~ /^-/)
7326 {
7327 last;
7328 }
7329 shift (@args);
7330 }
7332 my ($file, $primary, @prefix) = @args;
7334 # Now that configure substitutions are allowed in where_HOW
7335 # variables, it is an error to actually define the primary. We
7336 # allow `JAVA', as it is customarily used to mean the Java
7337 # interpreter. This is but one of several Java hacks. Similarly,
7338 # `PYTHON' is customarily used to mean the Python interpreter.
7339 reject_var $primary, "`$primary' is an anachronism"
7340 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7342 # Get the prefixes which are valid and actually used.
7343 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7345 # If a primary includes a configure substitution, then the EXTRA_
7346 # form is required. Otherwise we can't properly do our job.
7347 my $require_extra;
7349 my @used = ();
7350 my @result = ();
7352 foreach my $X (@prefix)
7353 {
7354 my $nodir_name = $X;
7355 my $one_name = $X . '_' . $primary;
7356 my $one_var = var $one_name;
7358 my $strip_subdir = 1;
7359 # If subdir prefix should be preserved, do so.
7360 if ($nodir_name =~ /^nobase_/)
7361 {
7362 $strip_subdir = 0;
7363 $nodir_name =~ s/^nobase_//;
7364 }
7366 # If files should be distributed, do so.
7367 my $dist_p = 0;
7368 if ($can_dist)
7369 {
7370 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7371 || (! $default_dist && $nodir_name =~ /^dist_/));
7372 $nodir_name =~ s/^(dist|nodist)_//;
7373 }
7376 # Use the location of the currently processed variable.
7377 # We are not processing a particular condition, so pick the first
7378 # available.
7379 my $tmpcond = $one_var->conditions->one_cond;
7380 my $where = $one_var->rdef ($tmpcond)->location->clone;
7382 # Append actual contents of where_PRIMARY variable to
7383 # @result, skipping @substitutions@.
7384 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7385 {
7386 my ($loc, $value) = @$locvals;
7387 # Skip configure substitutions.
7388 if ($value =~ /^\@.*\@$/)
7389 {
7390 if ($nodir_name eq 'EXTRA')
7391 {
7392 error ($where,
7393 "`$one_name' contains configure substitution, "
7394 . "but shouldn't");
7395 }
7396 # Check here to make sure variables defined in
7397 # configure.ac do not imply that EXTRA_PRIMARY
7398 # must be defined.
7399 elsif (! defined $configure_vars{$one_name})
7400 {
7401 $require_extra = $one_name
7402 if $do_require;
7403 }
7404 }
7405 else
7406 {
7407 push (@result, $locvals);
7408 }
7409 }
7410 # A blatant hack: we rewrite each _PROGRAMS primary to include
7411 # EXEEXT.
7412 append_exeext { 1 } $one_name
7413 if $primary eq 'PROGRAMS';
7414 # "EXTRA" shouldn't be used when generating clean targets,
7415 # all, or install targets. We used to warn if EXTRA_FOO was
7416 # defined uselessly, but this was annoying.
7417 next
7418 if $nodir_name eq 'EXTRA';
7420 if ($nodir_name eq 'check')
7421 {
7422 push (@check, '$(' . $one_name . ')');
7423 }
7424 else
7425 {
7426 push (@used, '$(' . $one_name . ')');
7427 }
7429 # Is this to be installed?
7430 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7432 # If so, with install-exec? (or install-data?).
7433 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7435 my $check_options_p = $install_p && !! option 'std-options';
7437 # Use the location of the currently processed variable as context.
7438 $where->push_context ("while processing `$one_name'");
7440 # The variable containing all files to distribute.
7441 my $distvar = "\$($one_name)";
7442 $distvar = shadow_unconditionally ($one_name, $where)
7443 if ($dist_p && $one_var->has_conditional_contents);
7445 # Singular form of $PRIMARY.
7446 (my $one_primary = $primary) =~ s/S$//;
7447 $output_rules .= &file_contents ($file, $where,
7448 PRIMARY => $primary,
7449 ONE_PRIMARY => $one_primary,
7450 DIR => $X,
7451 NDIR => $nodir_name,
7452 BASE => $strip_subdir,
7454 EXEC => $exec_p,
7455 INSTALL => $install_p,
7456 DIST => $dist_p,
7457 DISTVAR => $distvar,
7458 'CK-OPTS' => $check_options_p);
7459 }
7461 # The JAVA variable is used as the name of the Java interpreter.
7462 # The PYTHON variable is used as the name of the Python interpreter.
7463 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7464 {
7465 # Define it.
7466 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7467 $output_vars .= "\n";
7468 }
7470 err_var ($require_extra,
7471 "`$require_extra' contains configure substitution,\n"
7472 . "but `EXTRA_$primary' not defined")
7473 if ($require_extra && ! var ('EXTRA_' . $primary));
7475 # Push here because PRIMARY might be configure time determined.
7476 push (@all, '$(' . $primary . ')')
7477 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7479 # Make the result unique. This lets the user use conditionals in
7480 # a natural way, but still lets us program lazily -- we don't have
7481 # to worry about handling a particular object more than once.
7482 # We will keep only one location per object.
7483 my %result = ();
7484 for my $pair (@result)
7485 {
7486 my ($loc, $val) = @$pair;
7487 $result{$val} = $loc;
7488 }
7489 my @l = sort keys %result;
7490 return map { [$result{$_}->clone, $_] } @l;
7491 }
7494 ################################################################
7496 # Each key in this hash is the name of a directory holding a
7497 # Makefile.in. These variables are local to `is_make_dir'.
7498 my %make_dirs = ();
7499 my $make_dirs_set = 0;
7501 sub is_make_dir
7502 {
7503 my ($dir) = @_;
7504 if (! $make_dirs_set)
7505 {
7506 foreach my $iter (@configure_input_files)
7507 {
7508 $make_dirs{dirname ($iter)} = 1;
7509 }
7510 # We also want to notice Makefile.in's.
7511 foreach my $iter (@other_input_files)
7512 {
7513 if ($iter =~ /Makefile\.in$/)
7514 {
7515 $make_dirs{dirname ($iter)} = 1;
7516 }
7517 }
7518 $make_dirs_set = 1;
7519 }
7520 return defined $make_dirs{$dir};
7521 }
7523 ################################################################
7525 # Find the aux dir. This should match the algorithm used by
7526 # ./configure. (See the Autoconf documentation for for
7527 # AC_CONFIG_AUX_DIR.)
7528 sub locate_aux_dir ()
7529 {
7530 if (! $config_aux_dir_set_in_configure_ac)
7531 {
7532 # The default auxiliary directory is the first
7533 # of ., .., or ../.. that contains install-sh.
7534 # Assume . if install-sh doesn't exist yet.
7535 for my $dir (qw (. .. ../..))
7536 {
7537 if (-f "$dir/install-sh")
7538 {
7539 $config_aux_dir = $dir;
7540 last;
7541 }
7542 }
7543 $config_aux_dir = '.' unless $config_aux_dir;
7544 }
7545 # Avoid unsightly '/.'s.
7546 $am_config_aux_dir =
7547 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7548 $am_config_aux_dir =~ s,/*$,,;
7549 }
7552 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7553 # --------------------------------------------------
7554 # See if we want to push this file onto dist_common. This function
7555 # encodes the rules for deciding when to do so.
7556 sub maybe_push_required_file
7557 {
7558 my ($dir, $file, $fullfile) = @_;
7560 if ($dir eq $relative_dir)
7561 {
7562 push_dist_common ($file);
7563 return 1;
7564 }
7565 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7566 {
7567 # If we are doing the topmost directory, and the file is in a
7568 # subdir which does not have a Makefile, then we distribute it
7569 # here.
7571 # If a required file is above the source tree, it is important
7572 # to prefix it with `$(srcdir)' so that no VPATH search is
7573 # performed. Otherwise problems occur with Make implementations
7574 # that rewrite and simplify rules whose dependencies are found in a
7575 # VPATH location. Here is an example with OSF1/Tru64 Make.
7576 #
7577 # % cat Makefile
7578 # VPATH = sub
7579 # distdir: ../a
7580 # echo ../a
7581 # % ls
7582 # Makefile a
7583 # % make
7584 # echo a
7585 # a
7586 #
7587 # Dependency `../a' was found in `sub/../a', but this make
7588 # implementation simplified it as `a'. (Note that the sub/
7589 # directory does not even exist.)
7590 #
7591 # This kind of VPATH rewriting seems hard to cancel. The
7592 # distdir.am hack against VPATH rewriting works only when no
7593 # simplification is done, i.e., for dependencies which are in
7594 # subdirectories, not in enclosing directories. Hence, in
7595 # the latter case we use a full path to make sure no VPATH
7596 # search occurs.
7597 $fullfile = '$(srcdir)/' . $fullfile
7598 if $dir =~ m,^\.\.(?:$|/),;
7600 push_dist_common ($fullfile);
7601 return 1;
7602 }
7603 return 0;
7604 }
7607 # If a file name appears as a key in this hash, then it has already
7608 # been checked for. This allows us not to report the same error more
7609 # than once.
7610 my %required_file_not_found = ();
7612 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7613 # --------------------------------------------------------------
7614 # Verify that the file must exist in $DIRECTORY, or install it.
7615 # $MYSTRICT is the strictness level at which this file becomes required.
7616 sub require_file_internal ($$$@)
7617 {
7618 my ($where, $mystrict, $dir, @files) = @_;
7620 foreach my $file (@files)
7621 {
7622 my $fullfile = "$dir/$file";
7623 my $found_it = 0;
7624 my $dangling_sym = 0;
7626 if (-l $fullfile && ! -f $fullfile)
7627 {
7628 $dangling_sym = 1;
7629 }
7630 elsif (dir_has_case_matching_file ($dir, $file))
7631 {
7632 $found_it = 1;
7633 maybe_push_required_file ($dir, $file, $fullfile);
7634 }
7636 # `--force-missing' only has an effect if `--add-missing' is
7637 # specified.
7638 if ($found_it && (! $add_missing || ! $force_missing))
7639 {
7640 next;
7641 }
7642 else
7643 {
7644 # If we've already looked for it, we're done. You might
7645 # wonder why we don't do this before searching for the
7646 # file. If we do that, then something like
7647 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7648 # DIST_COMMON.
7649 if (! $found_it)
7650 {
7651 next if defined $required_file_not_found{$fullfile};
7652 $required_file_not_found{$fullfile} = 1;
7653 }
7655 if ($strictness >= $mystrict)
7656 {
7657 if ($dangling_sym && $add_missing)
7658 {
7659 unlink ($fullfile);
7660 }
7662 my $trailer = '';
7663 my $trailer2 = '';
7664 my $suppress = 0;
7666 # Only install missing files according to our desired
7667 # strictness level.
7668 my $message = "required file `$fullfile' not found";
7669 if ($add_missing)
7670 {
7671 if (-f "$libdir/$file")
7672 {
7673 $suppress = 1;
7675 # Install the missing file. Symlink if we
7676 # can, copy if we must. Note: delete the file
7677 # first, in case it is a dangling symlink.
7678 $message = "installing `$fullfile'";
7680 # The license file should not be volatile.
7681 if ($file eq "COPYING")
7682 {
7683 $message .= " using GNU General Public License v3 file";
7684 $trailer2 = "\n Consider adding the COPYING file"
7685 . " to the version control system"
7686 . "\n for your code, to avoid questions"
7687 . " about which license your project uses.";
7688 }
7690 # Windows Perl will hang if we try to delete a
7691 # file that doesn't exist.
7692 unlink ($fullfile) if -f $fullfile;
7693 if ($symlink_exists && ! $copy_missing)
7694 {
7695 if (! symlink ("$libdir/$file", $fullfile))
7696 {
7697 $suppress = 0;
7698 $trailer = "; error while making link: $!";
7699 }
7700 }
7701 elsif (system ('cp', "$libdir/$file", $fullfile))
7702 {
7703 $suppress = 0;
7704 $trailer = "\n error while copying";
7705 }
7706 set_dir_cache_file ($dir, $file);
7707 }
7709 if (! maybe_push_required_file (dirname ($fullfile),
7710 $file, $fullfile))
7711 {
7712 if (! $found_it && ! $automake_will_process_aux_dir)
7713 {
7714 # We have added the file but could not push it
7715 # into DIST_COMMON, probably because this is
7716 # an auxiliary file and we are not processing
7717 # the top level Makefile. Furthermore Automake
7718 # hasn't been asked to create the Makefile.in
7719 # that distributes the aux dir files.
7720 error ($where, 'Please make a full run of automake'
7721 . " so $fullfile gets distributed.");
7722 }
7723 }
7724 }
7725 else
7726 {
7727 $trailer = "\n `automake --add-missing' can install `$file'"
7728 if -f "$libdir/$file";
7729 }
7731 # If --force-missing was specified, and we have
7732 # actually found the file, then do nothing.
7733 next
7734 if $found_it && $force_missing;
7736 # If we couldn't install the file, but it is a target in
7737 # the Makefile, don't print anything. This allows files
7738 # like README, AUTHORS, or THANKS to be generated.
7739 next
7740 if !$suppress && rule $file;
7742 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7743 }
7744 }
7745 }
7746 }
7748 # &require_file ($WHERE, $MYSTRICT, @FILES)
7749 # -----------------------------------------
7750 sub require_file ($$@)
7751 {
7752 my ($where, $mystrict, @files) = @_;
7753 require_file_internal ($where, $mystrict, $relative_dir, @files);
7754 }
7756 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7757 # -----------------------------------------------------------
7758 sub require_file_with_macro ($$$@)
7759 {
7760 my ($cond, $macro, $mystrict, @files) = @_;
7761 $macro = rvar ($macro) unless ref $macro;
7762 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7763 }
7765 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7766 # ----------------------------------------------------------------
7767 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7768 # must be in that directory. Otherwise expect it in the current directory.
7769 sub require_libsource_with_macro ($$$@)
7770 {
7771 my ($cond, $macro, $mystrict, @files) = @_;
7772 $macro = rvar ($macro) unless ref $macro;
7773 if ($config_libobj_dir)
7774 {
7775 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7776 $config_libobj_dir, @files);
7777 }
7778 else
7779 {
7780 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7781 }
7782 }
7784 # Queue to push require_conf_file requirements to.
7785 my $required_conf_file_queue;
7787 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
7788 # -------------------------------------------------------------------------
7789 sub queue_required_conf_file ($$$$@)
7790 {
7791 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7792 my @serial_loc;
7793 if (ref $where)
7794 {
7795 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7796 }
7797 else
7798 {
7799 @serial_loc = (QUEUE_STRING, $where);
7800 }
7801 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7802 }
7804 # &require_queued_conf_file ($QUEUE)
7805 # ----------------------------------
7806 sub require_queued_conf_file ($)
7807 {
7808 my ($queue) = @_;
7809 my $where;
7810 my $dir = $queue->dequeue ();
7811 my $loc_key = $queue->dequeue ();
7812 if ($loc_key eq QUEUE_LOCATION)
7813 {
7814 $where = Automake::Location::deserialize ($queue);
7815 }
7816 elsif ($loc_key eq QUEUE_STRING)
7817 {
7818 $where = $queue->dequeue ();
7819 }
7820 else
7821 {
7822 prog_error "unexpected key $loc_key";
7823 }
7824 my $mystrict = $queue->dequeue ();
7825 my $nfiles = $queue->dequeue ();
7826 my @files;
7827 push @files, $queue->dequeue ()
7828 foreach (1 .. $nfiles);
7830 # Dequeuing happens outside of per-makefile context, so we have to
7831 # set the variables used by require_file_internal and the functions
7832 # it calls. Gross!
7833 $relative_dir = $dir;
7834 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7835 }
7837 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7838 # ----------------------------------------------
7839 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
7840 # worker threads may queue up the action to be serialized by the master.
7841 #
7842 # FIXME: this seriously relies on the semantics of require_file_internal
7843 # and maybe_push_required_file, in that we exploit the fact that only the
7844 # contents of the last handled output file may be impacted (which in turn
7845 # is dealt with by the master thread).
7846 sub require_conf_file ($$@)
7847 {
7848 my ($where, $mystrict, @files) = @_;
7849 if (defined $required_conf_file_queue)
7850 {
7851 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
7852 $relative_dir, $where, $mystrict, @files);
7853 }
7854 else
7855 {
7856 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7857 }
7858 }
7861 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7862 # ----------------------------------------------------------------
7863 sub require_conf_file_with_macro ($$$@)
7864 {
7865 my ($cond, $macro, $mystrict, @files) = @_;
7866 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7867 $mystrict, @files);
7868 }
7870 ################################################################
7872 # &require_build_directory ($DIRECTORY)
7873 # ------------------------------------
7874 # Emit rules to create $DIRECTORY if needed, and return
7875 # the file that any target requiring this directory should be made
7876 # dependent upon.
7877 # We don't want to emit the rule twice, and want to reuse it
7878 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7879 sub require_build_directory ($)
7880 {
7881 my $directory = shift;
7883 return $directory_map{$directory} if exists $directory_map{$directory};
7885 my $cdir = File::Spec->canonpath ($directory);
7887 if (exists $directory_map{$cdir})
7888 {
7889 my $stamp = $directory_map{$cdir};
7890 $directory_map{$directory} = $stamp;
7891 return $stamp;
7892 }
7894 my $dirstamp = "$cdir/\$(am__dirstamp)";
7896 $directory_map{$directory} = $dirstamp;
7897 $directory_map{$cdir} = $dirstamp;
7899 # Set a variable for the dirstamp basename.
7900 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7901 '$(am__leading_dot)dirstamp');
7903 # Directory must be removed by `make distclean'.
7904 $clean_files{$dirstamp} = DIST_CLEAN;
7906 $output_rules .= ("$dirstamp:\n"
7907 . "\t\@\$(MKDIR_P) $directory\n"
7908 . "\t\@: > $dirstamp\n");
7910 return $dirstamp;
7911 }
7913 # &require_build_directory_maybe ($FILE)
7914 # --------------------------------------
7915 # If $FILE lies in a subdirectory, emit a rule to create this
7916 # directory and return the file that $FILE should be made
7917 # dependent upon. Otherwise, just return the empty string.
7918 sub require_build_directory_maybe ($)
7919 {
7920 my $file = shift;
7921 my $directory = dirname ($file);
7923 if ($directory ne '.')
7924 {
7925 return require_build_directory ($directory);
7926 }
7927 else
7928 {
7929 return '';
7930 }
7931 }
7933 ################################################################
7935 # Push a list of files onto dist_common.
7936 sub push_dist_common
7937 {
7938 prog_error "push_dist_common run after handle_dist"
7939 if $handle_dist_run;
7940 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7941 '', INTERNAL, VAR_PRETTY);
7942 }
7945 ################################################################
7947 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7948 # ----------------------------------------------
7949 # Generate a Makefile.in given the name of the corresponding Makefile and
7950 # the name of the file output by config.status.
7951 sub generate_makefile ($$)
7952 {
7953 my ($makefile_am, $makefile_in) = @_;
7955 # Reset all the Makefile.am related variables.
7956 initialize_per_input;
7958 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7959 # warnings for this file. So hold any warning issued before
7960 # we have processed AUTOMAKE_OPTIONS.
7961 buffer_messages ('warning');
7963 # Name of input file ("Makefile.am") and output file
7964 # ("Makefile.in"). These have no directory components.
7965 $am_file_name = basename ($makefile_am);
7966 $in_file_name = basename ($makefile_in);
7968 # $OUTPUT is encoded. If it contains a ":" then the first element
7969 # is the real output file, and all remaining elements are input
7970 # files. We don't scan or otherwise deal with these input files,
7971 # other than to mark them as dependencies. See
7972 # &scan_autoconf_files for details.
7973 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7975 $relative_dir = dirname ($makefile);
7976 $am_relative_dir = dirname ($makefile_am);
7977 $topsrcdir = backname ($relative_dir);
7979 read_main_am_file ($makefile_am);
7980 if (handle_options)
7981 {
7982 # Process buffered warnings.
7983 flush_messages;
7984 # Fatal error. Just return, so we can continue with next file.
7985 return;
7986 }
7987 # Process buffered warnings.
7988 flush_messages;
7990 # There are a few install-related variables that you should not define.
7991 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7992 {
7993 my $v = var $var;
7994 if ($v)
7995 {
7996 my $def = $v->def (TRUE);
7997 prog_error "$var not defined in condition TRUE"
7998 unless $def;
7999 reject_var $var, "`$var' should not be defined"
8000 if $def->owner != VAR_AUTOMAKE;
8001 }
8002 }
8004 # Catch some obsolete variables.
8005 msg_var ('obsolete', 'INCLUDES',
8006 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8007 if var ('INCLUDES');
8009 # Must do this after reading .am file.
8010 define_variable ('subdir', $relative_dir, INTERNAL);
8012 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8013 # recursive rules are enabled.
8014 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8015 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8017 # Check first, because we might modify some state.
8018 check_cygnus;
8019 check_gnu_standards;
8020 check_gnits_standards;
8022 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8023 handle_gettext;
8024 handle_libraries;
8025 handle_ltlibraries;
8026 handle_programs;
8027 handle_scripts;
8029 # These must be run after all the sources are scanned. They
8030 # use variables defined by &handle_libraries, &handle_ltlibraries,
8031 # or &handle_programs.
8032 handle_compile;
8033 handle_languages;
8034 handle_libtool;
8036 # Variables used by distdir.am and tags.am.
8037 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8038 if (! option 'no-dist')
8039 {
8040 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8041 }
8043 handle_multilib;
8044 handle_texinfo;
8045 handle_emacs_lisp;
8046 handle_python;
8047 handle_java;
8048 handle_man_pages;
8049 handle_data;
8050 handle_headers;
8051 handle_subdirs;
8052 handle_tags;
8053 handle_minor_options;
8054 # Must come after handle_programs so that %known_programs is up-to-date.
8055 handle_tests;
8057 # This must come after most other rules.
8058 handle_dist;
8060 handle_footer;
8061 do_check_merge_target;
8062 handle_all ($makefile);
8064 # FIXME: Gross!
8065 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8066 {
8067 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8068 }
8069 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8070 {
8071 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8072 }
8074 handle_install;
8075 handle_clean ($makefile);
8076 handle_factored_dependencies;
8078 # Comes last, because all the above procedures may have
8079 # defined or overridden variables.
8080 $output_vars .= output_variables;
8082 check_typos;
8084 my ($out_file) = $output_directory . '/' . $makefile_in;
8086 if ($exit_code != 0)
8087 {
8088 verb "not writing $out_file because of earlier errors";
8089 return;
8090 }
8092 if (! -d ($output_directory . '/' . $am_relative_dir))
8093 {
8094 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8095 }
8097 # We make sure that `all:' is the first target.
8098 my $output =
8099 "$output_vars$output_all$output_header$output_rules$output_trailer";
8101 # Decide whether we must update the output file or not.
8102 # We have to update in the following situations.
8103 # * $force_generation is set.
8104 # * any of the output dependencies is younger than the output
8105 # * the contents of the output is different (this can happen
8106 # if the project has been populated with a file listed in
8107 # @common_files since the last run).
8108 # Output's dependencies are split in two sets:
8109 # * dependencies which are also configure dependencies
8110 # These do not change between each Makefile.am
8111 # * other dependencies, specific to the Makefile.am being processed
8112 # (such as the Makefile.am itself, or any Makefile fragment
8113 # it includes).
8114 my $timestamp = mtime $out_file;
8115 if (! $force_generation
8116 && $configure_deps_greatest_timestamp < $timestamp
8117 && $output_deps_greatest_timestamp < $timestamp
8118 && $output eq contents ($out_file))
8119 {
8120 verb "$out_file unchanged";
8121 # No need to update.
8122 return;
8123 }
8125 if (-e $out_file)
8126 {
8127 unlink ($out_file)
8128 or fatal "cannot remove $out_file: $!\n";
8129 }
8131 my $gm_file = new Automake::XFile "> $out_file";
8132 verb "creating $out_file";
8133 print $gm_file $output;
8134 }
8136 ################################################################
8141 ################################################################
8143 # Print usage information.
8144 sub usage ()
8145 {
8146 print "Usage: $0 [OPTION] ... [Makefile]...
8148 Generate Makefile.in for configure from Makefile.am.
8150 Operation modes:
8151 --help print this help, then exit
8152 --version print version number, then exit
8153 -v, --verbose verbosely list files processed
8154 --no-force only update Makefile.in's that are out of date
8155 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8157 Dependency tracking:
8158 -i, --ignore-deps disable dependency tracking code
8159 --include-deps enable dependency tracking code
8161 Verbosity of generated rules:
8162 --silent-rules enable silent build rules
8164 Flavors:
8165 --cygnus assume program is part of Cygnus-style tree
8166 --foreign set strictness to foreign
8167 --gnits set strictness to gnits
8168 --gnu set strictness to gnu
8170 Library files:
8171 -a, --add-missing add missing standard files to package
8172 --libdir=DIR directory storing library files
8173 -c, --copy with -a, copy missing files (default is symlink)
8174 -f, --force-missing force update of standard files
8176 ";
8177 Automake::ChannelDefs::usage;
8179 my ($last, @lcomm);
8180 $last = '';
8181 foreach my $iter (sort ((@common_files, @common_sometimes)))
8182 {
8183 push (@lcomm, $iter) unless $iter eq $last;
8184 $last = $iter;
8185 }
8187 my @four;
8188 print "\nFiles which are automatically distributed, if found:\n";
8189 format USAGE_FORMAT =
8190 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8191 $four[0], $four[1], $four[2], $four[3]
8192 .
8193 $~ = "USAGE_FORMAT";
8195 my $cols = 4;
8196 my $rows = int(@lcomm / $cols);
8197 my $rest = @lcomm % $cols;
8199 if ($rest)
8200 {
8201 $rows++;
8202 }
8203 else
8204 {
8205 $rest = $cols;
8206 }
8208 for (my $y = 0; $y < $rows; $y++)
8209 {
8210 @four = ("", "", "", "");
8211 for (my $x = 0; $x < $cols; $x++)
8212 {
8213 last if $y + 1 == $rows && $x == $rest;
8215 my $idx = (($x > $rest)
8216 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8217 : ($rows * $x));
8219 $idx += $y;
8220 $four[$x] = $lcomm[$idx];
8221 }
8222 write;
8223 }
8225 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
8227 # --help always returns 0 per GNU standards.
8228 exit 0;
8229 }
8232 # &version ()
8233 # -----------
8234 # Print version information
8235 sub version ()
8236 {
8237 print <<EOF;
8238 automake (GNU $PACKAGE) $VERSION
8239 Copyright (C) 2009 Free Software Foundation, Inc.
8240 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
8241 This is free software: you are free to change and redistribute it.
8242 There is NO WARRANTY, to the extent permitted by law.
8244 Written by Tom Tromey <tromey\@redhat.com>
8245 and Alexandre Duret-Lutz <adl\@gnu.org>.
8246 EOF
8247 # --version always returns 0 per GNU standards.
8248 exit 0;
8249 }
8251 ################################################################
8253 # Parse command line.
8254 sub parse_arguments ()
8255 {
8256 # Start off as gnu.
8257 set_strictness ('gnu');
8259 my $cli_where = new Automake::Location;
8260 my %cli_options =
8261 (
8262 'libdir=s' => \$libdir,
8263 'gnu' => sub { set_strictness ('gnu'); },
8264 'gnits' => sub { set_strictness ('gnits'); },
8265 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8266 'foreign' => sub { set_strictness ('foreign'); },
8267 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8268 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8269 $cli_where); },
8270 'no-force' => sub { $force_generation = 0; },
8271 'f|force-missing' => \$force_missing,
8272 'o|output-dir=s' => \$output_directory,
8273 'a|add-missing' => \$add_missing,
8274 'c|copy' => \$copy_missing,
8275 'silent-rules' => sub { set_global_option ('silent-rules',
8276 $cli_where); },
8277 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8278 'W|warnings=s' => \&parse_warnings,
8279 # These long options (--Werror and --Wno-error) for backward
8280 # compatibility. Use -Werror and -Wno-error today.
8281 'Werror' => sub { parse_warnings 'W', 'error'; },
8282 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8283 );
8284 use Getopt::Long;
8285 Getopt::Long::config ("bundling", "pass_through");
8287 # See if --version or --help is used. We want to process these before
8288 # anything else because the GNU Coding Standards require us to
8289 # `exit 0' after processing these options, and we can't guarantee this
8290 # if we treat other options first. (Handling other options first
8291 # could produce error diagnostics, and in this condition it is
8292 # confusing if Automake does `exit 0'.)
8293 my %cli_options_1st_pass =
8294 (
8295 'version' => \&version,
8296 'help' => \&usage,
8297 # Recognize all other options (and their arguments) but do nothing.
8298 map { $_ => sub {} } (keys %cli_options)
8299 );
8300 my @ARGV_backup = @ARGV;
8301 Getopt::Long::GetOptions %cli_options_1st_pass
8302 or exit 1;
8303 @ARGV = @ARGV_backup;
8305 # Now *really* process the options. This time we know that --help
8306 # and --version are not present, but we specify them nonetheless so
8307 # that ambiguous abbreviation are diagnosed.
8308 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
8309 or exit 1;
8311 if (defined $output_directory)
8312 {
8313 msg 'obsolete', "`--output-dir' is deprecated\n";
8314 }
8315 else
8316 {
8317 # In the next release we'll remove this entirely.
8318 $output_directory = '.';
8319 }
8321 return unless @ARGV;
8323 if ($ARGV[0] =~ /^-./)
8324 {
8325 my %argopts;
8326 for my $k (keys %cli_options)
8327 {
8328 if ($k =~ /(.*)=s$/)
8329 {
8330 map { $argopts{(length ($_) == 1)
8331 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
8332 }
8333 }
8334 if ($ARGV[0] eq '--')
8335 {
8336 shift @ARGV;
8337 }
8338 elsif (exists $argopts{$ARGV[0]})
8339 {
8340 fatal ("option `$ARGV[0]' requires an argument\n"
8341 . "Try `$0 --help' for more information.");
8342 }
8343 else
8344 {
8345 fatal ("unrecognized option `$ARGV[0]'.\n"
8346 . "Try `$0 --help' for more information.");
8347 }
8348 }
8350 my $errspec = 0;
8351 foreach my $arg (@ARGV)
8352 {
8353 fatal ("empty argument\nTry `$0 --help' for more information.")
8354 if ($arg eq '');
8356 # Handle $local:$input syntax.
8357 my ($local, @rest) = split (/:/, $arg);
8358 @rest = ("$local.in",) unless @rest;
8359 my $input = locate_am @rest;
8360 if ($input)
8361 {
8362 push @input_files, $input;
8363 $output_files{$input} = join (':', ($local, @rest));
8364 }
8365 else
8366 {
8367 error "no Automake input file found for `$arg'";
8368 $errspec = 1;
8369 }
8370 }
8371 fatal "no input file found among supplied arguments"
8372 if $errspec && ! @input_files;
8373 }
8376 # handle_makefile ($MAKEFILE_IN)
8377 # ------------------------------
8378 # Deal with $MAKEFILE_IN.
8379 sub handle_makefile ($)
8380 {
8381 my ($file) = @_;
8382 ($am_file = $file) =~ s/\.in$//;
8383 if (! -f ($am_file . '.am'))
8384 {
8385 error "`$am_file.am' does not exist";
8386 }
8387 else
8388 {
8389 # Any warning setting now local to this Makefile.am.
8390 dup_channel_setup;
8392 generate_makefile ($am_file . '.am', $file);
8394 # Back out any warning setting.
8395 drop_channel_setup;
8396 }
8397 }
8399 # handle_makefiles_serial ()
8400 # --------------------------
8401 # Deal with all makefiles, without threads.
8402 sub handle_makefiles_serial ()
8403 {
8404 foreach my $file (@input_files)
8405 {
8406 handle_makefile ($file);
8407 }
8408 }
8410 # get_number_of_threads ()
8411 # ------------------------
8412 # Logic for deciding how many worker threads to use.
8413 sub get_number_of_threads
8414 {
8415 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8417 $nthreads = 0
8418 unless $nthreads =~ /^[0-9]+$/;
8420 # It doesn't make sense to use more threads than makefiles,
8421 my $max_threads = @input_files;
8423 # but a single worker thread is helpful for exposing bugs.
8424 if ($automake_will_process_aux_dir && $max_threads > 1)
8425 {
8426 $max_threads--;
8427 }
8428 if ($nthreads > $max_threads)
8429 {
8430 $nthreads = $max_threads;
8431 }
8432 return $nthreads;
8433 }
8435 # handle_makefiles_threaded ($NTHREADS)
8436 # -------------------------------------
8437 # Deal with all makefiles, using threads. The general strategy is to
8438 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8439 # worker threads push back everything that needs serialization:
8440 # * warning and (normal) error messages, for stable stderr output
8441 # order and content (avoiding duplicates, for example),
8442 # * races when installing aux files (and respective messages),
8443 # * races when collecting aux files for distribution.
8444 #
8445 # The latter requires that the makefile that deals with the aux dir
8446 # files be handled last, done by the master thread.
8447 sub handle_makefiles_threaded ($)
8448 {
8449 my ($nthreads) = @_;
8451 my @queued_input_files = @input_files;
8452 my $last_input_file = undef;
8453 if ($automake_will_process_aux_dir)
8454 {
8455 $last_input_file = pop @queued_input_files;
8456 }
8458 # The file queue distributes all makefiles, the message queues
8459 # collect all serializations needed for respective files.
8460 my $file_queue = Thread::Queue->new;
8461 my %msg_queues;
8462 foreach my $file (@queued_input_files)
8463 {
8464 $msg_queues{$file} = Thread::Queue->new;
8465 }
8467 verb "spawning $nthreads worker threads";
8468 my @threads = (1 .. $nthreads);
8469 foreach my $t (@threads)
8470 {
8471 $t = threads->new (sub
8472 {
8473 while (my $file = $file_queue->dequeue)
8474 {
8475 verb "handling $file";
8476 my $queue = $msg_queues{$file};
8477 setup_channel_queue ($queue, QUEUE_MESSAGE);
8478 $required_conf_file_queue = $queue;
8479 handle_makefile ($file);
8480 $queue->enqueue (undef);
8481 setup_channel_queue (undef, undef);
8482 $required_conf_file_queue = undef;
8483 }
8484 return $exit_code;
8485 });
8486 }
8488 # Queue all normal makefiles.
8489 verb "queuing " . @queued_input_files . " input files";
8490 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8492 # Collect and process serializations.
8493 foreach my $file (@queued_input_files)
8494 {
8495 verb "dequeuing messages for " . $file;
8496 reset_local_duplicates ();
8497 my $queue = $msg_queues{$file};
8498 while (my $key = $queue->dequeue)
8499 {
8500 if ($key eq QUEUE_MESSAGE)
8501 {
8502 pop_channel_queue ($queue);
8503 }
8504 elsif ($key eq QUEUE_CONF_FILE)
8505 {
8506 require_queued_conf_file ($queue);
8507 }
8508 else
8509 {
8510 prog_error "unexpected key $key";
8511 }
8512 }
8513 }
8515 foreach my $t (@threads)
8516 {
8517 my @exit_thread = $t->join;
8518 $exit_code = $exit_thread[0]
8519 if ($exit_thread[0] > $exit_code);
8520 }
8522 # The master processes the last file.
8523 if ($automake_will_process_aux_dir)
8524 {
8525 verb "processing last input file";
8526 handle_makefile ($last_input_file);
8527 }
8528 }
8530 ################################################################
8532 # Parse the WARNINGS environment variable.
8533 parse_WARNINGS;
8535 # Parse command line.
8536 parse_arguments;
8538 $configure_ac = require_configure_ac;
8540 # Do configure.ac scan only once.
8541 scan_autoconf_files;
8543 if (! @input_files)
8544 {
8545 my $msg = '';
8546 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8547 if -f 'Makefile.am';
8548 fatal ("no `Makefile.am' found for any configure output$msg");
8549 }
8551 my $nthreads = get_number_of_threads ();
8553 if ($perl_threads && $nthreads >= 1)
8554 {
8555 handle_makefiles_threaded ($nthreads);
8556 }
8557 else
8558 {
8559 handle_makefiles_serial ();
8560 }
8562 exit $exit_code;
8565 ### Setup "GNU" style for perl-mode and cperl-mode.
8566 ## Local Variables:
8567 ## perl-indent-level: 2
8568 ## perl-continued-statement-offset: 2
8569 ## perl-continued-brace-offset: 0
8570 ## perl-brace-offset: 0
8571 ## perl-brace-imaginary-offset: 0
8572 ## perl-label-offset: -2
8573 ## cperl-indent-level: 2
8574 ## cperl-brace-offset: 0
8575 ## cperl-continued-brace-offset: 0
8576 ## cperl-label-offset: -2
8577 ## cperl-extra-newline-before-brace: t
8578 ## cperl-merge-trailing-else: nil
8579 ## cperl-continued-statement-offset: 2
8580 ## End: