| blob | 35fb1987759a0bb009b2ec2260023fd047460773 |
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 Free Software Foundation, Inc.
12 # This program is free software; you can redistribute it and/or modify
13 # it under the terms of the GNU General Public License as published by
14 # the Free Software Foundation; either version 2, or (at your option)
15 # any later version.
17 # This program is distributed in the hope that it will be useful,
18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 # GNU General Public License for more details.
22 # You should have received a copy of the GNU General Public License
23 # along with this program; if not, write to the Free Software
24 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 # 02110-1301, USA.
27 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
28 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
29 # Alexandre Duret-Lutz <adl@gnu.org>.
31 package Language;
33 BEGIN
34 {
35 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
36 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
38 # Override SHELL. This is required on DJGPP so that system() uses
39 # bash, not COMMAND.COM which doesn't quote arguments properly.
40 # Other systems aren't expected to use $SHELL when Automake
41 # runs, but it should be safe to drop the `if DJGPP' guard if
42 # it turns up other systems need the same thing. After all,
43 # if SHELL is used, ./configure's SHELL is always better than
44 # the user's SHELL (which may be something like tcsh).
45 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJGPP'};
46 }
48 use Automake::Struct;
49 struct (# Short name of the language (c, f77...).
50 'name' => "\$",
51 # Nice name of the language (C, Fortran 77...).
52 'Name' => "\$",
54 # List of configure variables which must be defined.
55 'config_vars' => '@',
57 'ansi' => "\$",
58 # `pure' is `1' or `'. A `pure' language is one where, if
59 # all the files in a directory are of that language, then we
60 # do not require the C compiler or any code to call it.
61 'pure' => "\$",
63 'autodep' => "\$",
65 # Name of the compiling variable (COMPILE).
66 'compiler' => "\$",
67 # Content of the compiling variable.
68 'compile' => "\$",
69 # Flag to require compilation without linking (-c).
70 'compile_flag' => "\$",
71 'extensions' => '@',
72 # A subroutine to compute a list of possible extensions of
73 # the product given the input extensions.
74 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
75 'output_extensions' => "\$",
76 # A list of flag variables used in 'compile'.
77 # (defaults to [])
78 'flags' => "@",
80 # Any tag to pass to libtool while compiling.
81 'libtool_tag' => "\$",
83 # The file to use when generating rules for this language.
84 # The default is 'depend2'.
85 'rule_file' => "\$",
87 # Name of the linking variable (LINK).
88 'linker' => "\$",
89 # Content of the linking variable.
90 'link' => "\$",
92 # Name of the linker variable (LD).
93 'lder' => "\$",
94 # Content of the linker variable ($(CC)).
95 'ld' => "\$",
97 # Flag to specify the output file (-o).
98 'output_flag' => "\$",
99 '_finish' => "\$",
101 # This is a subroutine which is called whenever we finally
102 # determine the context in which a source file will be
103 # compiled.
104 '_target_hook' => "\$",
106 # If TRUE, nodist_ sources will be compiled using specific rules
107 # (i.e. not inference rules). The default is FALSE.
108 'nodist_specific' => "\$");
111 sub finish ($)
112 {
113 my ($self) = @_;
114 if (defined $self->_finish)
115 {
116 &{$self->_finish} ();
117 }
118 }
120 sub target_hook ($$$$%)
121 {
122 my ($self) = @_;
123 if (defined $self->_target_hook)
124 {
125 &{$self->_target_hook} (@_);
126 }
127 }
129 package Automake;
131 use strict;
132 use Automake::Config;
133 use Automake::General;
134 use Automake::XFile;
135 use Automake::Channels;
136 use Automake::ChannelDefs;
137 use Automake::Configure_ac;
138 use Automake::FileUtils;
139 use Automake::Location;
140 use Automake::Condition qw/TRUE FALSE/;
141 use Automake::DisjConditions;
142 use Automake::Options;
143 use Automake::Version;
144 use Automake::Variable;
145 use Automake::VarDef;
146 use Automake::Rule;
147 use Automake::RuleDef;
148 use Automake::Wrap 'makefile_wrap';
149 use File::Basename;
150 use File::Spec;
151 use Carp;
153 ## ----------- ##
154 ## Constants. ##
155 ## ----------- ##
157 # Some regular expressions. One reason to put them here is that it
158 # makes indentation work better in Emacs.
160 # Writing singled-quoted-$-terminated regexes is a pain because
161 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
162 # by a closing quote. Letting perl-mode think the quote is not closed
163 # leads to all sort of misindentations. On the other hand, defining
164 # regexes as double-quoted strings is far less readable. So usually
165 # we will write:
166 #
167 # $REGEX = '^regex_value' . "\$";
169 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
170 my $WHITE_PATTERN = '^\s*' . "\$";
171 my $COMMENT_PATTERN = '^#';
172 my $TARGET_PATTERN='[$a-zA-Z_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
173 # A rule has three parts: a list of targets, a list of dependencies,
174 # and optionally actions.
175 my $RULE_PATTERN =
176 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
178 # Only recognize leading spaces, not leading tabs. If we recognize
179 # leading tabs here then we need to make the reader smarter, because
180 # otherwise it will think rules like `foo=bar; \' are errors.
181 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
182 # This pattern recognizes a Gnits version id and sets $1 if the
183 # release is an alpha release. We also allow a suffix which can be
184 # used to extend the version number with a "fork" identifier.
185 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
187 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
188 my $ELSE_PATTERN =
189 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
190 my $ENDIF_PATTERN =
191 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
192 my $PATH_PATTERN = '(\w|[+/.-])+';
193 # This will pass through anything not of the prescribed form.
194 my $INCLUDE_PATTERN = ('^include\s+'
195 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
196 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
197 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
199 # Match `-d' as a command-line argument in a string.
200 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
201 # Directories installed during 'install-exec' phase.
202 my $EXEC_DIR_PATTERN =
203 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
205 # Values for AC_CANONICAL_*
206 use constant AC_CANONICAL_BUILD => 1;
207 use constant AC_CANONICAL_HOST => 2;
208 use constant AC_CANONICAL_TARGET => 3;
210 # Values indicating when something should be cleaned.
211 use constant MOSTLY_CLEAN => 0;
212 use constant CLEAN => 1;
213 use constant DIST_CLEAN => 2;
214 use constant MAINTAINER_CLEAN => 3;
216 # Libtool files.
217 my @libtool_files = qw(ltmain.sh config.guess config.sub);
218 # ltconfig appears here for compatibility with old versions of libtool.
219 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
221 # Commonly found files we look for and automatically include in
222 # DISTFILES.
223 my @common_files =
224 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
225 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
226 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
227 depcomp elisp-comp install-sh libversion.in mdate-sh missing
228 mkinstalldirs py-compile texinfo.tex ylwrap),
229 @libtool_files, @libtool_sometimes);
231 # Commonly used files we auto-include, but only sometimes. This list
232 # is used for the --help output only.
233 my @common_sometimes =
234 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
235 configure.ac configure.in stamp-vti);
237 # Standard directories from the GNU Coding Standards, and additional
238 # pkg* directories from Automake. Stored in a hash for fast member check.
239 my %standard_prefix =
240 map { $_ => 1 } (qw(bin data dataroot dvi exec html include info
241 lib libexec lisp localstate man man1 man2 man3
242 man4 man5 man6 man7 man8 man9 oldinclude pdf
243 pkgdatadir pkgincludedir pkglibdir ps sbin
244 sharedstate sysconf));
246 # Copyright on generated Makefile.ins.
247 my $gen_copyright = "\
248 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
249 # 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
250 # This Makefile.in is free software; the Free Software Foundation
251 # gives unlimited permission to copy and/or distribute it,
252 # with or without modifications, as long as this notice is preserved.
254 # This program is distributed in the hope that it will be useful,
255 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
256 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
257 # PARTICULAR PURPOSE.
258 ";
260 # These constants are returned by lang_*_rewrite functions.
261 # LANG_SUBDIR means that the resulting object file should be in a
262 # subdir if the source file is. In this case the file name cannot
263 # have `..' components.
264 use constant LANG_IGNORE => 0;
265 use constant LANG_PROCESS => 1;
266 use constant LANG_SUBDIR => 2;
268 # These are used when keeping track of whether an object can be built
269 # by two different paths.
270 use constant COMPILE_LIBTOOL => 1;
271 use constant COMPILE_ORDINARY => 2;
273 # We can't always associate a location to a variable or a rule,
274 # when its defined by Automake. We use INTERNAL in this case.
275 use constant INTERNAL => new Automake::Location;
276 \f
278 ## ---------------------------------- ##
279 ## Variables related to the options. ##
280 ## ---------------------------------- ##
282 # TRUE if we should always generate Makefile.in.
283 my $force_generation = 1;
285 # From the Perl manual.
286 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
288 # TRUE if missing standard files should be installed.
289 my $add_missing = 0;
291 # TRUE if we should copy missing files; otherwise symlink if possible.
292 my $copy_missing = 0;
294 # TRUE if we should always update files that we know about.
295 my $force_missing = 0;
298 ## ---------------------------------------- ##
299 ## Variables filled during files scanning. ##
300 ## ---------------------------------------- ##
302 # Name of the configure.ac file.
303 my $configure_ac;
305 # Files found by scanning configure.ac for LIBOBJS.
306 my %libsources = ();
308 # Names used in AC_CONFIG_HEADER call.
309 my @config_headers = ();
311 # Names used in AC_CONFIG_LINKS call.
312 my @config_links = ();
314 # Directory where output files go. Actually, output files are
315 # relative to this directory.
316 my $output_directory;
318 # List of Makefile.am's to process, and their corresponding outputs.
319 my @input_files = ();
320 my %output_files = ();
322 # Complete list of Makefile.am's that exist.
323 my @configure_input_files = ();
325 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
326 # and their outputs.
327 my @other_input_files = ();
328 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
329 # The keys are the files created by these macros.
330 my %ac_config_files_location = ();
332 # Directory to search for configure-required files. This
333 # will be computed by &locate_aux_dir and can be set using
334 # AC_CONFIG_AUX_DIR in configure.ac.
335 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
336 my $config_aux_dir = '';
337 my $config_aux_dir_set_in_configure_ac = 0;
338 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
339 # in Makefiles.
340 my $am_config_aux_dir = '';
342 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
343 # in configure.ac.
344 my $config_libobj_dir = '';
346 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
347 my $seen_gettext = 0;
348 # Whether AM_GNU_GETTEXT([external]) is used.
349 my $seen_gettext_external = 0;
350 # Where AM_GNU_GETTEXT appears.
351 my $ac_gettext_location;
353 # Lists of tags supported by Libtool.
354 my %libtool_tags = ();
355 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
356 # uses AC_REQUIRE_AUX_FILE.
357 my $libtool_new_api = 0;
359 # Most important AC_CANONICAL_* macro seen so far.
360 my $seen_canonical = 0;
361 # Location of that macro.
362 my $canonical_location;
364 # Where AM_MAINTAINER_MODE appears.
365 my $seen_maint_mode;
367 # Actual version we've seen.
368 my $package_version = '';
370 # Where version is defined.
371 my $package_version_location;
373 # TRUE if we've seen AC_ENABLE_MULTILIB.
374 my $seen_multilib = 0;
376 # TRUE if we've seen AM_PROG_CC_C_O
377 my $seen_cc_c_o = 0;
379 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
380 my %required_aux_file = ();
382 # Where AM_INIT_AUTOMAKE is called;
383 my $seen_init_automake = 0;
385 # TRUE if we've seen AM_AUTOMAKE_VERSION.
386 my $seen_automake_version = 0;
388 # Hash table of discovered configure substitutions. Keys are names,
389 # values are `FILE:LINE' strings which are used by error message
390 # generation.
391 my %configure_vars = ();
393 # Ignored configure substitutions (i.e., variables not to be output in
394 # Makefile.in)
395 my %ignored_configure_vars = ();
397 # Files included by $configure_ac.
398 my @configure_deps = ();
400 # Greatest timestamp of configure's dependencies.
401 my $configure_deps_greatest_timestamp = 0;
403 # Hash table of AM_CONDITIONAL variables seen in configure.
404 my %configure_cond = ();
406 # This maps extensions onto language names.
407 my %extension_map = ();
409 # List of the DIST_COMMON files we discovered while reading
410 # configure.in
411 my $configure_dist_common = '';
413 # This maps languages names onto objects.
414 my %languages = ();
415 # Maps each linker variable onto a language object.
416 my %link_languages = ();
418 # List of targets we must always output.
419 # FIXME: Complete, and remove falsely required targets.
420 my %required_targets =
421 (
422 'all' => 1,
423 'dvi' => 1,
424 'pdf' => 1,
425 'ps' => 1,
426 'info' => 1,
427 'install-info' => 1,
428 'install' => 1,
429 'install-data' => 1,
430 'install-exec' => 1,
431 'uninstall' => 1,
433 # FIXME: Not required, temporary hacks.
434 # Well, actually they are sort of required: the -recursive
435 # targets will run them anyway...
436 'dvi-am' => 1,
437 'pdf-am' => 1,
438 'ps-am' => 1,
439 'info-am' => 1,
440 'install-data-am' => 1,
441 'install-exec-am' => 1,
442 'installcheck-am' => 1,
443 'uninstall-am' => 1,
445 'install-man' => 1,
446 );
448 # Set to 1 if this run will create the Makefile.in that distribute
449 # the files in config_aux_dir.
450 my $automake_will_process_aux_dir = 0;
452 # The name of the Makefile currently being processed.
453 my $am_file = 'BUG';
454 \f
456 ################################################################
458 ## ------------------------------------------ ##
459 ## Variables reset by &initialize_per_input. ##
460 ## ------------------------------------------ ##
462 # Basename and relative dir of the input file.
463 my $am_file_name;
464 my $am_relative_dir;
466 # Same but wrt Makefile.in.
467 my $in_file_name;
468 my $relative_dir;
470 # Relative path to the top directory.
471 my $topsrcdir;
473 # Greatest timestamp of the output's dependencies (excluding
474 # configure's dependencies).
475 my $output_deps_greatest_timestamp;
477 # These two variables are used when generating each Makefile.in.
478 # They hold the Makefile.in until it is ready to be printed.
479 my $output_rules;
480 my $output_vars;
481 my $output_trailer;
482 my $output_all;
483 my $output_header;
485 # This is the conditional stack, updated on if/else/endif, and
486 # used to build Condition objects.
487 my @cond_stack;
489 # This holds the set of included files.
490 my @include_stack;
492 # List of dependencies for the obvious targets.
493 my @all;
494 my @check;
495 my @check_tests;
497 # Keys in this hash table are files to delete. The associated
498 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
499 my %clean_files;
501 # Keys in this hash table are object files or other files in
502 # subdirectories which need to be removed. This only holds files
503 # which are created by compilations. The value in the hash indicates
504 # when the file should be removed.
505 my %compile_clean_files;
507 # Keys in this hash table are directories where we expect to build a
508 # libtool object. We use this information to decide what directories
509 # to delete.
510 my %libtool_clean_directories;
512 # Value of `$(SOURCES)', used by tags.am.
513 my @sources;
514 # Sources which go in the distribution.
515 my @dist_sources;
517 # This hash maps object file names onto their corresponding source
518 # file names. This is used to ensure that each object is created
519 # by a single source file.
520 my %object_map;
522 # This hash maps object file names onto an integer value representing
523 # whether this object has been built via ordinary compilation or
524 # libtool compilation (the COMPILE_* constants).
525 my %object_compilation_map;
528 # This keeps track of the directories for which we've already
529 # created dirstamp code. Keys are directories, values are stamp files.
530 # Several keys can share the same stamp files if they are equivalent
531 # (as are `.//foo' and `foo').
532 my %directory_map;
534 # All .P files.
535 my %dep_files;
537 # This is a list of all targets to run during "make dist".
538 my @dist_targets;
540 # Keep track of all programs declared in this Makefile, without
541 # $(EXEEXT). @substitution@ are not listed.
542 my %known_programs;
544 # Keys in this hash are the basenames of files which must depend on
545 # ansi2knr. Values are either the empty string, or the directory in
546 # which the ANSI source file appears; the directory must have a
547 # trailing `/'.
548 my %de_ansi_files;
550 # This is the name of the redirect `all' target to use.
551 my $all_target;
553 # This keeps track of which extensions we've seen (that we care
554 # about).
555 my %extension_seen;
557 # This is random scratch space for the language finish functions.
558 # Don't randomly overwrite it; examine other uses of keys first.
559 my %language_scratch;
561 # We keep track of which objects need special (per-executable)
562 # handling on a per-language basis.
563 my %lang_specific_files;
565 # This is set when `handle_dist' has finished. Once this happens,
566 # we should no longer push on dist_common.
567 my $handle_dist_run;
569 # Used to store a set of linkers needed to generate the sources currently
570 # under consideration.
571 my %linkers_used;
573 # True if we need `LINK' defined. This is a hack.
574 my $need_link;
576 # Was get_object_extension run?
577 # FIXME: This is a hack. a better switch should be found.
578 my $get_object_extension_was_run;
580 # Record each file processed by make_paragraphs.
581 my %transformed_files;
583 # Cache each file processed by make_paragraphs.
584 # (This is different from %transformed_files because
585 # %transformed_files is reset for each file while %am_file_cache
586 # it global to the run.)
587 my %am_file_cache;
589 ################################################################
591 # var_SUFFIXES_trigger ($TYPE, $VALUE)
592 # ------------------------------------
593 # This is called by Automake::Variable::define() when SUFFIXES
594 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
595 # The work here needs to be performed as a side-effect of the
596 # macro_define() call because SUFFIXES definitions impact
597 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
598 # the input am file.
599 sub var_SUFFIXES_trigger ($$)
600 {
601 my ($type, $value) = @_;
602 accept_extensions (split (' ', $value));
603 }
604 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
606 ################################################################
608 ## --------------------------------- ##
609 ## Forward subroutine declarations. ##
610 ## --------------------------------- ##
611 sub register_language (%);
612 sub file_contents_internal ($$$%);
613 sub define_files_variable ($\@$$);
616 # &initialize_per_input ()
617 # ------------------------
618 # (Re)-Initialize per-Makefile.am variables.
619 sub initialize_per_input ()
620 {
621 reset_local_duplicates ();
623 $am_file_name = '';
624 $am_relative_dir = '';
626 $in_file_name = '';
627 $relative_dir = '';
629 $output_deps_greatest_timestamp = 0;
631 $output_rules = '';
632 $output_vars = '';
633 $output_trailer = '';
634 $output_all = '';
635 $output_header = '';
637 Automake::Options::reset;
638 Automake::Variable::reset;
639 Automake::Rule::reset;
641 @cond_stack = ();
643 @include_stack = ();
645 @all = ();
646 @check = ();
647 @check_tests = ();
649 %clean_files = ();
651 @sources = ();
652 @dist_sources = ();
654 %object_map = ();
655 %object_compilation_map = ();
657 %directory_map = ();
659 %dep_files = ();
661 @dist_targets = ();
663 %known_programs = ();
665 %de_ansi_files = ();
667 $all_target = '';
669 %extension_seen = ();
671 %language_scratch = ();
673 %lang_specific_files = ();
675 $handle_dist_run = 0;
677 $need_link = 0;
679 $get_object_extension_was_run = 0;
681 %compile_clean_files = ();
683 # We always include `.'. This isn't strictly correct.
684 %libtool_clean_directories = ('.' => 1);
686 %transformed_files = ();
687 }
690 ################################################################
692 # Initialize our list of languages that are internally supported.
694 # C.
695 register_language ('name' => 'c',
696 'Name' => 'C',
697 'config_vars' => ['CC'],
698 'ansi' => 1,
699 'autodep' => '',
700 'flags' => ['CFLAGS', 'CPPFLAGS'],
701 'compiler' => 'COMPILE',
702 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
703 'lder' => 'CCLD',
704 'ld' => '$(CC)',
705 'linker' => 'LINK',
706 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
707 'compile_flag' => '-c',
708 'libtool_tag' => 'CC',
709 'extensions' => ['.c'],
710 '_finish' => \&lang_c_finish);
712 # C++.
713 register_language ('name' => 'cxx',
714 'Name' => 'C++',
715 'config_vars' => ['CXX'],
716 'linker' => 'CXXLINK',
717 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
718 'autodep' => 'CXX',
719 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
720 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
721 'compiler' => 'CXXCOMPILE',
722 'compile_flag' => '-c',
723 'output_flag' => '-o',
724 'libtool_tag' => 'CXX',
725 'lder' => 'CXXLD',
726 'ld' => '$(CXX)',
727 'pure' => 1,
728 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
730 # Objective C.
731 register_language ('name' => 'objc',
732 'Name' => 'Objective C',
733 'config_vars' => ['OBJC'],
734 'linker' => 'OBJCLINK',
735 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
736 'autodep' => 'OBJC',
737 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
738 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
739 'compiler' => 'OBJCCOMPILE',
740 'compile_flag' => '-c',
741 'output_flag' => '-o',
742 'lder' => 'OBJCLD',
743 'ld' => '$(OBJC)',
744 'pure' => 1,
745 'extensions' => ['.m']);
747 # Unified Parallel C.
748 register_language ('name' => 'upc',
749 'Name' => 'Unified Parallel C',
750 'config_vars' => ['UPC'],
751 'linker' => 'UPCLINK',
752 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
753 'autodep' => 'UPC',
754 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
755 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
756 'compiler' => 'UPCCOMPILE',
757 'compile_flag' => '-c',
758 'output_flag' => '-o',
759 'lder' => 'UPCLD',
760 'ld' => '$(UPC)',
761 'pure' => 1,
762 'extensions' => ['.upc']);
764 # Headers.
765 register_language ('name' => 'header',
766 'Name' => 'Header',
767 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
768 '.hpp', '.inc'],
769 # No output.
770 'output_extensions' => sub { return () },
771 # Nothing to do.
772 '_finish' => sub { });
774 # Yacc (C & C++).
775 register_language ('name' => 'yacc',
776 'Name' => 'Yacc',
777 'config_vars' => ['YACC'],
778 'flags' => ['YFLAGS'],
779 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
780 'compiler' => 'YACCCOMPILE',
781 'extensions' => ['.y'],
782 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
783 return ($ext,) },
784 'rule_file' => 'yacc',
785 '_finish' => \&lang_yacc_finish,
786 '_target_hook' => \&lang_yacc_target_hook,
787 'nodist_specific' => 1);
788 register_language ('name' => 'yaccxx',
789 'Name' => 'Yacc (C++)',
790 'config_vars' => ['YACC'],
791 'rule_file' => 'yacc',
792 'flags' => ['YFLAGS'],
793 'compiler' => 'YACCCOMPILE',
794 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
795 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
796 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
797 return ($ext,) },
798 '_finish' => \&lang_yacc_finish,
799 '_target_hook' => \&lang_yacc_target_hook,
800 'nodist_specific' => 1);
802 # Lex (C & C++).
803 register_language ('name' => 'lex',
804 'Name' => 'Lex',
805 'config_vars' => ['LEX'],
806 'rule_file' => 'lex',
807 'flags' => ['LFLAGS'],
808 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
809 'compiler' => 'LEXCOMPILE',
810 'extensions' => ['.l'],
811 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
812 return ($ext,) },
813 '_finish' => \&lang_lex_finish,
814 '_target_hook' => \&lang_lex_target_hook,
815 'nodist_specific' => 1);
816 register_language ('name' => 'lexxx',
817 'Name' => 'Lex (C++)',
818 'config_vars' => ['LEX'],
819 'rule_file' => 'lex',
820 'flags' => ['LFLAGS'],
821 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
822 'compiler' => 'LEXCOMPILE',
823 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
824 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
825 return ($ext,) },
826 '_finish' => \&lang_lex_finish,
827 '_target_hook' => \&lang_lex_target_hook,
828 'nodist_specific' => 1);
830 # Assembler.
831 register_language ('name' => 'asm',
832 'Name' => 'Assembler',
833 'config_vars' => ['CCAS', 'CCASFLAGS'],
835 'flags' => ['CCASFLAGS'],
836 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
837 # or anything else required. They can also set CCAS.
838 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
839 'compiler' => 'CCASCOMPILE',
840 'compile_flag' => '-c',
841 'extensions' => ['.s'],
843 # With assembly we still use the C linker.
844 '_finish' => \&lang_c_finish);
846 # Preprocessed Assembler.
847 register_language ('name' => 'cppasm',
848 'Name' => 'Preprocessed Assembler',
849 'config_vars' => ['CCAS', 'CCASFLAGS'],
851 'autodep' => 'CCAS',
852 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
853 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
854 # or anything else required beyond AM_CPPFLAGS. They
855 # can also set CCAS.
856 'compile' => '$(CCAS) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
857 'compiler' => 'CPPASCOMPILE',
858 'compile_flag' => '-c',
859 'extensions' => ['.S'],
861 # With assembly we still use the C linker.
862 '_finish' => \&lang_c_finish);
864 # Fortran 77
865 register_language ('name' => 'f77',
866 'Name' => 'Fortran 77',
867 'linker' => 'F77LINK',
868 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
869 'flags' => ['FFLAGS'],
870 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
871 'compiler' => 'F77COMPILE',
872 'compile_flag' => '-c',
873 'output_flag' => '-o',
874 'libtool_tag' => 'F77',
875 'lder' => 'F77LD',
876 'ld' => '$(F77)',
877 'pure' => 1,
878 'extensions' => ['.f', '.for']);
880 # Fortran
881 register_language ('name' => 'fc',
882 'Name' => 'Fortran',
883 'linker' => 'FCLINK',
884 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
885 'flags' => ['FCFLAGS'],
886 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
887 'compiler' => 'FCCOMPILE',
888 'compile_flag' => '-c',
889 'output_flag' => '-o',
890 'lder' => 'FCLD',
891 'ld' => '$(FC)',
892 'pure' => 1,
893 'extensions' => ['.f90', '.f95']);
895 # Preprocessed Fortran
896 register_language ('name' => 'ppfc',
897 'Name' => 'Preprocessed Fortran',
898 'config_vars' => ['FC'],
899 'linker' => 'FCLINK',
900 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
901 'lder' => 'FCLD',
902 'ld' => '$(FC)',
903 'flags' => ['FCFLAGS', 'CPPFLAGS'],
904 'compiler' => 'PPFCCOMPILE',
905 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
906 'compile_flag' => '-c',
907 'output_flag' => '-o',
908 'libtool_tag' => 'FC',
909 'pure' => 1,
910 'extensions' => ['.F90','.F95']);
912 # Preprocessed Fortran 77
913 #
914 # The current support for preprocessing Fortran 77 just involves
915 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
916 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
917 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
918 # for `make' Version 3.76 Beta' (specifically, from info file
919 # `(make)Catalogue of Rules').
920 #
921 # A better approach would be to write an Autoconf test
922 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
923 # Fortran 77 compilers know how to do preprocessing. The Autoconf
924 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
925 # preprocessing capabilities, and then fall back on cpp (if cpp were
926 # available).
927 register_language ('name' => 'ppf77',
928 'Name' => 'Preprocessed Fortran 77',
929 'config_vars' => ['F77'],
930 'linker' => 'F77LINK',
931 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
932 'lder' => 'F77LD',
933 'ld' => '$(F77)',
934 'flags' => ['FFLAGS', 'CPPFLAGS'],
935 'compiler' => 'PPF77COMPILE',
936 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
937 'compile_flag' => '-c',
938 'output_flag' => '-o',
939 'libtool_tag' => 'F77',
940 'pure' => 1,
941 'extensions' => ['.F']);
943 # Ratfor.
944 register_language ('name' => 'ratfor',
945 'Name' => 'Ratfor',
946 'config_vars' => ['F77'],
947 'linker' => 'F77LINK',
948 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
949 'lder' => 'F77LD',
950 'ld' => '$(F77)',
951 'flags' => ['RFLAGS', 'FFLAGS'],
952 # FIXME also FFLAGS.
953 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
954 'compiler' => 'RCOMPILE',
955 'compile_flag' => '-c',
956 'output_flag' => '-o',
957 'libtool_tag' => 'F77',
958 'pure' => 1,
959 'extensions' => ['.r']);
961 # Java via gcj.
962 register_language ('name' => 'java',
963 'Name' => 'Java',
964 'config_vars' => ['GCJ'],
965 'linker' => 'GCJLINK',
966 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
967 'autodep' => 'GCJ',
968 'flags' => ['GCJFLAGS'],
969 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
970 'compiler' => 'GCJCOMPILE',
971 'compile_flag' => '-c',
972 'output_flag' => '-o',
973 'libtool_tag' => 'GCJ',
974 'lder' => 'GCJLD',
975 'ld' => '$(GCJ)',
976 'pure' => 1,
977 'extensions' => ['.java', '.class', '.zip', '.jar']);
979 ################################################################
981 # Error reporting functions.
983 # err_am ($MESSAGE, [%OPTIONS])
984 # -----------------------------
985 # Uncategorized errors about the current Makefile.am.
986 sub err_am ($;%)
987 {
988 msg_am ('error', @_);
989 }
991 # err_ac ($MESSAGE, [%OPTIONS])
992 # -----------------------------
993 # Uncategorized errors about configure.ac.
994 sub err_ac ($;%)
995 {
996 msg_ac ('error', @_);
997 }
999 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1000 # ---------------------------------------
1001 # Messages about about the current Makefile.am.
1002 sub msg_am ($$;%)
1003 {
1004 my ($channel, $msg, %opts) = @_;
1005 msg $channel, "${am_file}.am", $msg, %opts;
1006 }
1008 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1009 # ---------------------------------------
1010 # Messages about about configure.ac.
1011 sub msg_ac ($$;%)
1012 {
1013 my ($channel, $msg, %opts) = @_;
1014 msg $channel, $configure_ac, $msg, %opts;
1015 }
1017 ################################################################
1019 # subst ($TEXT)
1020 # -------------
1021 # Return a configure-style substitution using the indicated text.
1022 # We do this to avoid having the substitutions directly in automake.in;
1023 # when we do that they are sometimes removed and this causes confusion
1024 # and bugs.
1025 sub subst ($)
1026 {
1027 my ($text) = @_;
1028 return '@' . $text . '@';
1029 }
1031 ################################################################
1034 # $BACKPATH
1035 # &backname ($REL-DIR)
1036 # --------------------
1037 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1038 # For instance `src/foo' => `../..'.
1039 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1040 sub backname ($)
1041 {
1042 my ($file) = @_;
1043 my @res;
1044 foreach (split (/\//, $file))
1045 {
1046 next if $_ eq '.' || $_ eq '';
1047 if ($_ eq '..')
1048 {
1049 pop @res;
1050 }
1051 else
1052 {
1053 push (@res, '..');
1054 }
1055 }
1056 return join ('/', @res) || '.';
1057 }
1059 ################################################################
1062 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1063 sub handle_options
1064 {
1065 my $var = var ('AUTOMAKE_OPTIONS');
1066 if ($var)
1067 {
1068 if ($var->has_conditional_contents)
1069 {
1070 msg_var ('unsupported', $var,
1071 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1072 }
1073 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1074 location => 1))
1075 {
1076 my ($loc, $value) = @$locvals;
1077 return 1 if (process_option_list ($loc, $value))
1078 }
1079 }
1081 if ($strictness == GNITS)
1082 {
1083 set_option ('readme-alpha', INTERNAL);
1084 set_option ('std-options', INTERNAL);
1085 set_option ('check-news', INTERNAL);
1086 }
1088 return 0;
1089 }
1091 # shadow_unconditionally ($varname, $where)
1092 # -----------------------------------------
1093 # Return a $(variable) that contains all possible values
1094 # $varname can take.
1095 # If the VAR wasn't defined conditionally, return $(VAR).
1096 # Otherwise we create a am__VAR_DIST variable which contains
1097 # all possible values, and return $(am__VAR_DIST).
1098 sub shadow_unconditionally ($$)
1099 {
1100 my ($varname, $where) = @_;
1101 my $var = var $varname;
1102 if ($var->has_conditional_contents)
1103 {
1104 $varname = "am__${varname}_DIST";
1105 my @files = uniq ($var->value_as_list_recursive);
1106 define_pretty_variable ($varname, TRUE, $where, @files);
1107 }
1108 return "\$($varname)"
1109 }
1111 # get_object_extension ($EXTENSION)
1112 # ---------------------------------
1113 # Prefix $EXTENSION with $U if ansi2knr is in use.
1114 sub get_object_extension ($)
1115 {
1116 my ($extension) = @_;
1118 # Check for automatic de-ANSI-fication.
1119 $extension = '$U' . $extension
1120 if option 'ansi2knr';
1122 $get_object_extension_was_run = 1;
1124 return $extension;
1125 }
1127 # check_user_variables (@LIST)
1128 # ----------------------------
1129 # Make sure each variable VAR in @LIST do not exist, suggest using AM_VAR
1130 # otherwise.
1131 sub check_user_variables (@)
1132 {
1133 my @dont_override = @_;
1134 foreach my $flag (@dont_override)
1135 {
1136 my $var = var $flag;
1137 if ($var)
1138 {
1139 for my $cond ($var->conditions->conds)
1140 {
1141 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1142 {
1143 msg_cond_var ('gnu', $cond, $flag,
1144 "`$flag' is a user variable, "
1145 . "you should not override it;\n"
1146 . "use `AM_$flag' instead.");
1147 }
1148 }
1149 }
1150 }
1151 }
1153 # Call finish function for each language that was used.
1154 sub handle_languages
1155 {
1156 if (! option 'no-dependencies')
1157 {
1158 # Include auto-dep code. Don't include it if DEP_FILES would
1159 # be empty.
1160 if (&saw_sources_p (0) && keys %dep_files)
1161 {
1162 # Set location of depcomp.
1163 &define_variable ('depcomp',
1164 "\$(SHELL) $am_config_aux_dir/depcomp",
1165 INTERNAL);
1166 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1168 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1170 my @deplist = sort keys %dep_files;
1171 # Generate each `include' individually. Irix 6 make will
1172 # not properly include several files resulting from a
1173 # variable expansion; generating many separate includes
1174 # seems safest.
1175 $output_rules .= "\n";
1176 foreach my $iter (@deplist)
1177 {
1178 $output_rules .= (subst ('AMDEP_TRUE')
1179 . subst ('am__include')
1180 . ' '
1181 . subst ('am__quote')
1182 . $iter
1183 . subst ('am__quote')
1184 . "\n");
1185 }
1187 # Compute the set of directories to remove in distclean-depend.
1188 my @depdirs = uniq (map { dirname ($_) } @deplist);
1189 $output_rules .= &file_contents ('depend',
1190 new Automake::Location,
1191 DEPDIRS => "@depdirs");
1192 }
1193 }
1194 else
1195 {
1196 &define_variable ('depcomp', '', INTERNAL);
1197 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1198 }
1200 my %done;
1202 # Is the c linker needed?
1203 my $needs_c = 0;
1204 foreach my $ext (sort keys %extension_seen)
1205 {
1206 next unless $extension_map{$ext};
1208 my $lang = $languages{$extension_map{$ext}};
1210 my $rule_file = $lang->rule_file || 'depend2';
1212 # Get information on $LANG.
1213 my $pfx = $lang->autodep;
1214 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1216 my ($AMDEP, $FASTDEP) =
1217 (option 'no-dependencies' || $lang->autodep eq 'no')
1218 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1220 my %transform = ('EXT' => $ext,
1221 'PFX' => $pfx,
1222 'FPFX' => $fpfx,
1223 'AMDEP' => $AMDEP,
1224 'FASTDEP' => $FASTDEP,
1225 '-c' => $lang->compile_flag || '',
1226 # These are not used, but they need to be defined
1227 # so &transform do not complain.
1228 SUBDIROBJ => 0,
1229 'DERIVED-EXT' => 'BUG',
1230 DIST_SOURCE => 1,
1231 );
1233 # Generate the appropriate rules for this extension.
1234 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1235 || defined $lang->compile)
1236 {
1237 # Some C compilers don't support -c -o. Use it only if really
1238 # needed.
1239 my $output_flag = $lang->output_flag || '';
1240 $output_flag = '-o'
1241 if (! $output_flag
1242 && $lang->name eq 'c'
1243 && option 'subdir-objects');
1245 # Compute a possible derived extension.
1246 # This is not used by depend2.am.
1247 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1249 # When we output an inference rule like `.c.o:' we
1250 # have two cases to consider: either subdir-objects
1251 # is used, or it is not.
1252 #
1253 # In the latter case the rule is used to build objects
1254 # in the current directory, and dependencies always
1255 # go into `./$(DEPDIR)/'. We can hard-code this value.
1256 #
1257 # In the former case the rule can be used to build
1258 # objects in sub-directories too. Dependencies should
1259 # go into the appropriate sub-directories, e.g.,
1260 # `sub/$(DEPDIR)/'. The value of this directory
1261 # need the be computed on-the-fly.
1262 #
1263 # DEPBASE holds the name of this directory, plus the
1264 # basename part of the object file (extensions Po, TPo,
1265 # Plo, TPlo will be added later as appropriate). It is
1266 # either hardcoded, or a shell variable (`$depbase') that
1267 # will be computed by the rule.
1268 my $depbase =
1269 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1270 $output_rules .=
1271 file_contents ($rule_file,
1272 new Automake::Location,
1273 %transform,
1274 GENERIC => 1,
1276 'DERIVED-EXT' => $der_ext,
1278 DEPBASE => $depbase,
1279 BASE => '$*',
1280 SOURCE => '$<',
1281 OBJ => '$@',
1282 OBJOBJ => '$@',
1283 LTOBJ => '$@',
1285 COMPILE => '$(' . $lang->compiler . ')',
1286 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1287 -o => $output_flag,
1288 SUBDIROBJ => !! option 'subdir-objects');
1289 }
1291 # Now include code for each specially handled object with this
1292 # language.
1293 my %seen_files = ();
1294 foreach my $file (@{$lang_specific_files{$lang->name}})
1295 {
1296 my ($derived, $source, $obj, $myext, %file_transform) = @$file;
1298 # We might see a given object twice, for instance if it is
1299 # used under different conditions.
1300 next if defined $seen_files{$obj};
1301 $seen_files{$obj} = 1;
1303 prog_error ("found " . $lang->name .
1304 " in handle_languages, but compiler not defined")
1305 unless defined $lang->compile;
1307 my $obj_compile = $lang->compile;
1309 # Rewrite each occurrence of `AM_$flag' in the compile
1310 # rule into `${derived}_$flag' if it exists.
1311 for my $flag (@{$lang->flags})
1312 {
1313 my $val = "${derived}_$flag";
1314 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1315 if set_seen ($val);
1316 }
1318 my $libtool_tag = '';
1319 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1320 {
1321 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1322 }
1324 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1325 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1327 my $obj_ltcompile =
1328 "\$(LIBTOOL) $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1329 . "--mode=compile $obj_compile";
1331 # We _need_ `-o' for per object rules.
1332 my $output_flag = $lang->output_flag || '-o';
1334 my $depbase = dirname ($obj);
1335 $depbase = ''
1336 if $depbase eq '.';
1337 $depbase .= '/'
1338 unless $depbase eq '';
1339 $depbase .= '$(DEPDIR)/' . basename ($obj);
1341 # Support for deansified files in subdirectories is ugly
1342 # enough to deserve an explanation.
1343 #
1344 # A Note about normal ansi2knr processing first. On
1345 #
1346 # AUTOMAKE_OPTIONS = ansi2knr
1347 # bin_PROGRAMS = foo
1348 # foo_SOURCES = foo.c
1349 #
1350 # we generate rules similar to:
1351 #
1352 # foo: foo$U.o; link ...
1353 # foo$U.o: foo$U.c; compile ...
1354 # foo_.c: foo.c; ansi2knr ...
1355 #
1356 # this is fairly compact, and will call ansi2knr depending
1357 # on the value of $U (`' or `_').
1358 #
1359 # It's harder with subdir sources. On
1360 #
1361 # AUTOMAKE_OPTIONS = ansi2knr
1362 # bin_PROGRAMS = foo
1363 # foo_SOURCES = sub/foo.c
1364 #
1365 # we have to create foo_.c in the current directory.
1366 # (Unless the user asks 'subdir-objects'.) This is important
1367 # in case the same file (`foo.c') is compiled from other
1368 # directories with different cpp options: foo_.c would
1369 # be preprocessed for only one set of options if it were
1370 # put in the subdirectory.
1371 #
1372 # Because foo$U.o must be built from either foo_.c or
1373 # sub/foo.c we can't be as concise as in the first example.
1374 # Instead we output
1375 #
1376 # foo: foo$U.o; link ...
1377 # foo_.o: foo_.c; compile ...
1378 # foo.o: sub/foo.c; compile ...
1379 # foo_.c: foo.c; ansi2knr ...
1380 #
1381 # This is why we'll now transform $rule_file twice
1382 # if we detect this case.
1383 # A first time we output the compile rule with `$U'
1384 # replaced by `_' and the source directory removed,
1385 # and another time we simply remove `$U'.
1386 #
1387 # Note that at this point $source (as computed by
1388 # &handle_single_transform) is `sub/foo$U.c'.
1389 # This can be confusing: it can be used as-is when
1390 # subdir-objects is set, otherwise you have to know
1391 # it really means `foo_.c' or `sub/foo.c'.
1392 my $objdir = dirname ($obj);
1393 my $srcdir = dirname ($source);
1394 if ($lang->ansi && $obj =~ /\$U/)
1395 {
1396 prog_error "`$obj' contains \$U, but `$source' doesn't."
1397 if $source !~ /\$U/;
1399 (my $source_ = $source) =~ s/\$U/_/g;
1400 # Output an additional rule if _.c and .c are not in
1401 # the same directory. (_.c is always in $objdir.)
1402 if ($objdir ne $srcdir)
1403 {
1404 (my $obj_ = $obj) =~ s/\$U/_/g;
1405 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1406 $source_ = basename ($source_);
1408 $output_rules .=
1409 file_contents ($rule_file,
1410 new Automake::Location,
1411 %transform,
1412 GENERIC => 0,
1414 DEPBASE => $depbase_,
1415 BASE => $obj_,
1416 SOURCE => $source_,
1417 OBJ => "$obj_$myext",
1418 OBJOBJ => "$obj_.obj",
1419 LTOBJ => "$obj_.lo",
1421 COMPILE => $obj_compile,
1422 LTCOMPILE => $obj_ltcompile,
1423 -o => $output_flag,
1424 %file_transform);
1425 $obj =~ s/\$U//g;
1426 $depbase =~ s/\$U//g;
1427 $source =~ s/\$U//g;
1428 }
1429 }
1431 $output_rules .=
1432 file_contents ($rule_file,
1433 new Automake::Location,
1434 %transform,
1435 GENERIC => 0,
1437 DEPBASE => $depbase,
1438 BASE => $obj,
1439 SOURCE => $source,
1440 # Use $myext and not `.o' here, in case
1441 # we are actually building a new source
1442 # file -- e.g. via yacc.
1443 OBJ => "$obj$myext",
1444 OBJOBJ => "$obj.obj",
1445 LTOBJ => "$obj.lo",
1447 COMPILE => $obj_compile,
1448 LTCOMPILE => $obj_ltcompile,
1449 -o => $output_flag,
1450 %file_transform);
1451 }
1453 # The rest of the loop is done once per language.
1454 next if defined $done{$lang};
1455 $done{$lang} = 1;
1457 # Load the language dependent Makefile chunks.
1458 my %lang = map { uc ($_) => 0 } keys %languages;
1459 $lang{uc ($lang->name)} = 1;
1460 $output_rules .= file_contents ('lang-compile',
1461 new Automake::Location,
1462 %transform, %lang);
1464 # If the source to a program consists entirely of code from a
1465 # `pure' language, for instance C++ or Fortran 77, then we
1466 # don't need the C compiler code. However if we run into
1467 # something unusual then we do generate the C code. There are
1468 # probably corner cases here that do not work properly.
1469 # People linking Java code to Fortran code deserve pain.
1470 $needs_c ||= ! $lang->pure;
1472 define_compiler_variable ($lang)
1473 if ($lang->compile);
1475 define_linker_variable ($lang)
1476 if ($lang->link);
1478 require_variables ("$am_file.am", $lang->Name . " source seen",
1479 TRUE, @{$lang->config_vars});
1481 # Call the finisher.
1482 $lang->finish;
1484 # Flags listed in `->flags' are user variables (per GNU Standards),
1485 # they should not be overridden in the Makefile...
1486 my @dont_override = @{$lang->flags};
1487 # ... and so is LDFLAGS.
1488 push @dont_override, 'LDFLAGS' if $lang->link;
1490 check_user_variables @dont_override;
1491 }
1493 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1494 # suffix rule was learned), don't bother with the C stuff. But if
1495 # anything else creeps in, then use it.
1496 $needs_c = 1
1497 if $need_link || suffix_rules_count > 1;
1499 if ($needs_c)
1500 {
1501 &define_compiler_variable ($languages{'c'})
1502 unless defined $done{$languages{'c'}};
1503 define_linker_variable ($languages{'c'});
1504 }
1505 }
1508 # append_exeext { PREDICATE } $MACRO
1509 # ----------------------------------
1510 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1511 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1512 # ignored.
1513 #
1514 # This is typically used on all filenames of *_PROGRAMS, and filenames
1515 # of TESTS that are programs.
1516 sub append_exeext (&$)
1517 {
1518 my ($pred, $macro) = @_;
1520 transform_variable_recursively
1521 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1522 sub {
1523 my ($subvar, $val, $cond, $full_cond) = @_;
1524 # Append $(EXEEXT) unless the user did it already, or it's a
1525 # @substitution@.
1526 $val .= '$(EXEEXT)'
1527 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1528 return $val;
1529 });
1530 }
1533 # Check to make sure a source defined in LIBOBJS is not explicitly
1534 # mentioned. This is a separate function (as opposed to being inlined
1535 # in handle_source_transform) because it isn't always appropriate to
1536 # do this check.
1537 sub check_libobjs_sources
1538 {
1539 my ($one_file, $unxformed) = @_;
1541 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1542 'dist_EXTRA_', 'nodist_EXTRA_')
1543 {
1544 my @files;
1545 my $varname = $prefix . $one_file . '_SOURCES';
1546 my $var = var ($varname);
1547 if ($var)
1548 {
1549 @files = $var->value_as_list_recursive;
1550 }
1551 elsif ($prefix eq '')
1552 {
1553 @files = ($unxformed . '.c');
1554 }
1555 else
1556 {
1557 next;
1558 }
1560 foreach my $file (@files)
1561 {
1562 err_var ($prefix . $one_file . '_SOURCES',
1563 "automatically discovered file `$file' should not" .
1564 " be explicitly mentioned")
1565 if defined $libsources{$file};
1566 }
1567 }
1568 }
1571 # @OBJECTS
1572 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1573 # -----------------------------------------------------------------------------
1574 # Does much of the actual work for handle_source_transform.
1575 # Arguments are:
1576 # $VAR is the name of the variable that the source filenames come from
1577 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1578 # $DERIVED is the name of resulting executable or library
1579 # $OBJ is the object extension (e.g., `$U.lo')
1580 # $FILE the source file to transform
1581 # %TRANSFORM contains extras arguments to pass to file_contents
1582 # when producing explicit rules
1583 # Result is a list of the names of objects
1584 # %linkers_used will be updated with any linkers needed
1585 sub handle_single_transform ($$$$$%)
1586 {
1587 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1588 my @files = ($_file);
1589 my @result = ();
1590 my $nonansi_obj = $obj;
1591 $nonansi_obj =~ s/\$U//g;
1593 # Turn sources into objects. We use a while loop like this
1594 # because we might add to @files in the loop.
1595 while (scalar @files > 0)
1596 {
1597 $_ = shift @files;
1599 # Configure substitutions in _SOURCES variables are errors.
1600 if (/^\@.*\@$/)
1601 {
1602 my $parent_msg = '';
1603 $parent_msg = "\nand is referred to from `$topparent'"
1604 if $topparent ne $var->name;
1605 err_var ($var,
1606 "`" . $var->name . "' includes configure substitution `$_'"
1607 . $parent_msg . ";\nconfigure " .
1608 "substitutions are not allowed in _SOURCES variables");
1609 next;
1610 }
1612 # If the source file is in a subdirectory then the `.o' is put
1613 # into the current directory, unless the subdir-objects option
1614 # is in effect.
1616 # Split file name into base and extension.
1617 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1618 my $full = $_;
1619 my $directory = $1 || '';
1620 my $base = $2;
1621 my $extension = $3;
1623 # We must generate a rule for the object if it requires its own flags.
1624 my $renamed = 0;
1625 my ($linker, $object);
1627 # This records whether we've seen a derived source file (e.g.
1628 # yacc output).
1629 my $derived_source = 0;
1631 # This holds the `aggregate context' of the file we are
1632 # currently examining. If the file is compiled with
1633 # per-object flags, then it will be the name of the object.
1634 # Otherwise it will be `AM'. This is used by the target hook
1635 # language function.
1636 my $aggregate = 'AM';
1638 $extension = &derive_suffix ($extension, $nonansi_obj);
1639 my $lang;
1640 if ($extension_map{$extension} &&
1641 ($lang = $languages{$extension_map{$extension}}))
1642 {
1643 # Found the language, so see what it says.
1644 &saw_extension ($extension);
1646 # Do we have per-executable flags for this executable?
1647 my $have_per_exec_flags = 0;
1648 my @peflags = @{$lang->flags};
1649 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1650 foreach my $flag (@peflags)
1651 {
1652 if (set_seen ("${derived}_$flag"))
1653 {
1654 $have_per_exec_flags = 1;
1655 last;
1656 }
1657 }
1659 # Note: computed subr call. The language rewrite function
1660 # should return one of the LANG_* constants. It could
1661 # also return a list whose first value is such a constant
1662 # and whose second value is a new source extension which
1663 # should be applied. This means this particular language
1664 # generates another source file which we must then process
1665 # further.
1666 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1667 my ($r, $source_extension)
1668 = &$subr ($directory, $base, $extension,
1669 $nonansi_obj, $have_per_exec_flags, $var);
1670 # Skip this entry if we were asked not to process it.
1671 next if $r == LANG_IGNORE;
1673 # Now extract linker and other info.
1674 $linker = $lang->linker;
1676 my $this_obj_ext;
1677 if (defined $source_extension)
1678 {
1679 $this_obj_ext = $source_extension;
1680 $derived_source = 1;
1681 }
1682 elsif ($lang->ansi)
1683 {
1684 $this_obj_ext = $obj;
1685 }
1686 else
1687 {
1688 $this_obj_ext = $nonansi_obj;
1689 }
1690 $object = $base . $this_obj_ext;
1692 if ($have_per_exec_flags)
1693 {
1694 # We have a per-executable flag in effect for this
1695 # object. In this case we rewrite the object's
1696 # name to ensure it is unique.
1698 # We choose the name `DERIVED_OBJECT' to ensure
1699 # (1) uniqueness, and (2) continuity between
1700 # invocations. However, this will result in a
1701 # name that is too long for losing systems, in
1702 # some situations. So we provide _SHORTNAME to
1703 # override.
1705 my $dname = $derived;
1706 my $var = var ($derived . '_SHORTNAME');
1707 if ($var)
1708 {
1709 # FIXME: should use the same Condition as
1710 # the _SOURCES variable. But this is really
1711 # silly overkill -- nobody should have
1712 # conditional shortnames.
1713 $dname = $var->variable_value;
1714 }
1715 $object = $dname . '-' . $object;
1717 prog_error ($lang->name . " flags defined without compiler")
1718 if ! defined $lang->compile;
1720 $renamed = 1;
1721 }
1723 # If rewrite said it was ok, put the object into a
1724 # subdir.
1725 if ($r == LANG_SUBDIR && $directory ne '')
1726 {
1727 $object = $directory . '/' . $object;
1728 }
1730 # If the object file has been renamed (because per-target
1731 # flags are used) we cannot compile the file with an
1732 # inference rule: we need an explicit rule.
1733 #
1734 # If the source is in a subdirectory and the object is in
1735 # the current directory, we also need an explicit rule.
1736 #
1737 # If both source and object files are in a subdirectory
1738 # (this happens when the subdir-objects option is used),
1739 # then the inference will work.
1740 #
1741 # The latter case deserves a historical note. When the
1742 # subdir-objects option was added on 1999-04-11 it was
1743 # thought that inferences rules would work for
1744 # subdirectory objects too. Later, on 1999-11-22,
1745 # automake was changed to output explicit rules even for
1746 # subdir-objects. Nobody remembers why, but this occured
1747 # soon after the merge of the user-dep-gen-branch so it
1748 # might be related. In late 2003 people complained about
1749 # the size of the generated Makefile.ins (libgcj, with
1750 # 2200+ subdir objects was reported to have a 9MB
1751 # Makefile), so we now rely on inference rules again.
1752 # Maybe we'll run across the same issue as in the past,
1753 # but at least this time we can document it. However since
1754 # dependency tracking has evolved it is possible that
1755 # our old problem no longer exists.
1756 # Using inference rules for subdir-objects has been tested
1757 # with GNU make, Solaris make, Ultrix make, BSD make,
1758 # HP-UX make, and OSF1 make successfully.
1759 if ($renamed
1760 || ($directory ne '' && ! option 'subdir-objects')
1761 # We must also use specific rules for a nodist_ source
1762 # if its language requests it.
1763 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1764 {
1765 my $obj_sans_ext = substr ($object, 0,
1766 - length ($this_obj_ext));
1767 my $full_ansi = $full;
1768 if ($lang->ansi && option 'ansi2knr')
1769 {
1770 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1771 $obj_sans_ext .= '$U';
1772 }
1774 my @specifics = ($full_ansi, $obj_sans_ext,
1775 # Only use $this_obj_ext in the derived
1776 # source case because in the other case we
1777 # *don't* want $(OBJEXT) to appear here.
1778 ($derived_source ? $this_obj_ext : '.o'));
1780 # If we renamed the object then we want to use the
1781 # per-executable flag name. But if this is simply a
1782 # subdir build then we still want to use the AM_ flag
1783 # name.
1784 if ($renamed)
1785 {
1786 unshift @specifics, $derived;
1787 $aggregate = $derived;
1788 }
1789 else
1790 {
1791 unshift @specifics, 'AM';
1792 }
1794 # Each item on this list is a reference to a list consisting
1795 # of four values followed by additional transform flags for
1796 # file_contents. The four values are the derived flag prefix
1797 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1798 # source file, the base name of the output file, and
1799 # the extension for the object file.
1800 push (@{$lang_specific_files{$lang->name}},
1801 [@specifics, %transform]);
1802 }
1803 }
1804 elsif ($extension eq $nonansi_obj)
1805 {
1806 # This is probably the result of a direct suffix rule.
1807 # In this case we just accept the rewrite.
1808 $object = "$base$extension";
1809 $object = "$directory/$object" if $directory ne '';
1810 $linker = '';
1811 }
1812 else
1813 {
1814 # No error message here. Used to have one, but it was
1815 # very unpopular.
1816 # FIXME: we could potentially do more processing here,
1817 # perhaps treating the new extension as though it were a
1818 # new source extension (as above). This would require
1819 # more restructuring than is appropriate right now.
1820 next;
1821 }
1823 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1824 if (defined $object_map{$object}
1825 && $object_map{$object} ne $full);
1827 my $comp_val = (($object =~ /\.lo$/)
1828 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1829 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1830 if (defined $object_compilation_map{$comp_obj}
1831 && $object_compilation_map{$comp_obj} != 0
1832 # Only see the error once.
1833 && ($object_compilation_map{$comp_obj}
1834 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1835 && $object_compilation_map{$comp_obj} != $comp_val)
1836 {
1837 err_am "object `$comp_obj' created both with libtool and without";
1838 }
1839 $object_compilation_map{$comp_obj} |= $comp_val;
1841 if (defined $lang)
1842 {
1843 # Let the language do some special magic if required.
1844 $lang->target_hook ($aggregate, $object, $full, %transform);
1845 }
1847 if ($derived_source)
1848 {
1849 prog_error ($lang->name . " has automatic dependency tracking")
1850 if $lang->autodep ne 'no';
1851 # Make sure this new source file is handled next. That will
1852 # make it appear to be at the right place in the list.
1853 unshift (@files, $object);
1854 # Distribute derived sources unless the source they are
1855 # derived from is not.
1856 &push_dist_common ($object)
1857 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1858 next;
1859 }
1861 $linkers_used{$linker} = 1;
1863 push (@result, $object);
1865 if (! defined $object_map{$object})
1866 {
1867 my @dep_list = ();
1868 $object_map{$object} = $full;
1870 # If resulting object is in subdir, we need to make
1871 # sure the subdir exists at build time.
1872 if ($object =~ /\//)
1873 {
1874 # FIXME: check that $DIRECTORY is somewhere in the
1875 # project
1877 # For Java, the way we're handling it right now, a
1878 # `..' component doesn't make sense.
1879 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1880 {
1881 err_am "`$full' should not contain a `..' component";
1882 }
1884 # Make sure object is removed by `make mostlyclean'.
1885 $compile_clean_files{$object} = MOSTLY_CLEAN;
1886 # If we have a libtool object then we also must remove
1887 # the ordinary .o.
1888 if ($object =~ /\.lo$/)
1889 {
1890 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1891 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1893 # Remove any libtool object in this directory.
1894 $libtool_clean_directories{$directory} = 1;
1895 }
1897 push (@dep_list, require_build_directory ($directory));
1899 # If we're generating dependencies, we also want
1900 # to make sure that the appropriate subdir of the
1901 # .deps directory is created.
1902 push (@dep_list,
1903 require_build_directory ($directory . '/$(DEPDIR)'))
1904 unless option 'no-dependencies';
1905 }
1907 &pretty_print_rule ($object . ':', "\t", @dep_list)
1908 if scalar @dep_list > 0;
1909 }
1911 # Transform .o or $o file into .P file (for automatic
1912 # dependency code).
1913 if ($lang && $lang->autodep ne 'no')
1914 {
1915 my $depfile = $object;
1916 $depfile =~ s/\.([^.]*)$/.P$1/;
1917 $depfile =~ s/\$\(OBJEXT\)$/o/;
1918 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1919 . basename ($depfile)} = 1;
1920 }
1921 }
1923 return @result;
1924 }
1927 # $LINKER
1928 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1929 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1930 # ---------------------------------------------------------------------------
1931 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1932 #
1933 # Arguments are:
1934 # $VAR is the name of the _SOURCES variable
1935 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1936 # it will be generated and returned).
1937 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1938 # work done to determine the linker will be).
1939 # $ONE_FILE is the canonical (transformed) name of object to build
1940 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1941 # $TOPPARENT is the _SOURCES variable being processed.
1942 # $WHERE context into which this definition is done
1943 # %TRANSFORM extra arguments to pass to file_contents when producing
1944 # rules
1945 #
1946 # Result is a pair ($LINKER, $OBJVAR):
1947 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1948 sub define_objects_from_sources ($$$$$$$%)
1949 {
1950 my ($var, $objvar, $nodefine, $one_file,
1951 $obj, $topparent, $where, %transform) = @_;
1953 my $needlinker = "";
1955 transform_variable_recursively
1956 ($var, $objvar, 'am__objects', $nodefine, $where,
1957 # The transform code to run on each filename.
1958 sub {
1959 my ($subvar, $val, $cond, $full_cond) = @_;
1960 my @trans = handle_single_transform ($subvar, $topparent,
1961 $one_file, $obj, $val,
1962 %transform);
1963 $needlinker = "true" if @trans;
1964 return @trans;
1965 });
1967 return $needlinker;
1968 }
1971 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
1972 # -----------------------------------------------------------------------------
1973 # Handle SOURCE->OBJECT transform for one program or library.
1974 # Arguments are:
1975 # canonical (transformed) name of target to build
1976 # actual target of object to build
1977 # object extension (i.e., either `.o' or `$o')
1978 # location of the source variable
1979 # extra arguments to pass to file_contents when producing rules
1980 # Return the name of the linker variable that must be used.
1981 # Empty return means just use `LINK'.
1982 sub handle_source_transform ($$$$%)
1983 {
1984 # one_file is canonical name. unxformed is given name. obj is
1985 # object extension.
1986 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
1988 my $linker = '';
1990 # No point in continuing if _OBJECTS is defined.
1991 return if reject_var ($one_file . '_OBJECTS',
1992 $one_file . '_OBJECTS should not be defined');
1994 my %used_pfx = ();
1995 my $needlinker;
1996 %linkers_used = ();
1997 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1998 'dist_EXTRA_', 'nodist_EXTRA_')
1999 {
2000 my $varname = $prefix . $one_file . "_SOURCES";
2001 my $var = var $varname;
2002 next unless $var;
2004 # We are going to define _OBJECTS variables using the prefix.
2005 # Then we glom them all together. So we can't use the null
2006 # prefix here as we need it later.
2007 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2009 # Keep track of which prefixes we saw.
2010 $used_pfx{$xpfx} = 1
2011 unless $prefix =~ /EXTRA_/;
2013 push @sources, "\$($varname)";
2014 push @dist_sources, shadow_unconditionally ($varname, $where)
2015 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2017 $needlinker |=
2018 define_objects_from_sources ($varname,
2019 $xpfx . $one_file . '_OBJECTS',
2020 $prefix =~ /EXTRA_/,
2021 $one_file, $obj, $varname, $where,
2022 DIST_SOURCE => ($prefix !~ /^nodist_/),
2023 %transform);
2024 }
2025 if ($needlinker)
2026 {
2027 $linker ||= &resolve_linker (%linkers_used);
2028 }
2030 my @keys = sort keys %used_pfx;
2031 if (scalar @keys == 0)
2032 {
2033 # The default source for libfoo.la is libfoo.c, but for
2034 # backward compatibility we first look at libfoo_la.c
2035 my $old_default_source = "$one_file.c";
2036 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
2037 if ($old_default_source ne $default_source
2038 && (rule $old_default_source
2039 || rule '$(srcdir)/' . $old_default_source
2040 || rule '${srcdir}/' . $old_default_source
2041 || -f $old_default_source))
2042 {
2043 my $loc = $where->clone;
2044 $loc->pop_context;
2045 msg ('obsolete', $loc,
2046 "the default source for `$unxformed' has been changed "
2047 . "to `$default_source'.\n(Using `$old_default_source' for "
2048 . "backward compatibility.)");
2049 $default_source = $old_default_source;
2050 }
2051 # If a rule exists to build this source with a $(srcdir)
2052 # prefix, use that prefix in our variables too. This is for
2053 # the sake of BSD Make.
2054 if (rule '$(srcdir)/' . $default_source
2055 || rule '${srcdir}/' . $default_source)
2056 {
2057 $default_source = '$(srcdir)/' . $default_source;
2058 }
2060 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2061 push (@sources, $default_source);
2062 push (@dist_sources, $default_source);
2064 %linkers_used = ();
2065 my (@result) =
2066 handle_single_transform ($one_file . '_SOURCES',
2067 $one_file . '_SOURCES',
2068 $one_file, $obj,
2069 $default_source, %transform);
2070 $linker ||= &resolve_linker (%linkers_used);
2071 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2072 }
2073 else
2074 {
2075 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2076 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2077 }
2079 # If we want to use `LINK' we must make sure it is defined.
2080 if ($linker eq '')
2081 {
2082 $need_link = 1;
2083 }
2085 return $linker;
2086 }
2089 # handle_lib_objects ($XNAME, $VAR)
2090 # ---------------------------------
2091 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2092 # Also, generate _DEPENDENCIES variable if appropriate.
2093 # Arguments are:
2094 # transformed name of object being built, or empty string if no object
2095 # name of _LDADD/_LIBADD-type variable to examine
2096 # Returns 1 if LIBOBJS seen, 0 otherwise.
2097 sub handle_lib_objects
2098 {
2099 my ($xname, $varname) = @_;
2101 my $var = var ($varname);
2102 prog_error "handle_lib_objects: `$varname' undefined"
2103 unless $var;
2104 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2105 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2106 my $prefix = $1 || 'AM_';
2108 my $seen_libobjs = 0;
2109 my $flagvar = 0;
2111 transform_variable_recursively
2112 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2113 ! $xname, INTERNAL,
2114 # Transformation function, run on each filename.
2115 sub {
2116 my ($subvar, $val, $cond, $full_cond) = @_;
2118 if ($val =~ /^-/)
2119 {
2120 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2121 if ($val !~ /^-[lL]/ &&
2122 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2123 # for Libtool libraries or programs. (Actually we are a bit
2124 # laxest here since this code also applies to non-libtool
2125 # libraries or programs, for which -dlopen and -dlopreopen
2126 # are pure non-sence. Diagnosting this doesn't seems very
2127 # important: the developer will quickly get complaints from
2128 # the linker.)
2129 $val !~ /^-dl(?:pre)?open$/ &&
2130 # Only get this error once.
2131 ! $flagvar)
2132 {
2133 $flagvar = 1;
2134 # FIXME: should display a stack of nested variables
2135 # as context when $var != $subvar.
2136 err_var ($var, "linker flags such as `$val' belong in "
2137 . "`${prefix}LDFLAGS");
2138 }
2139 return ();
2140 }
2141 elsif ($val !~ /^\@.*\@$/)
2142 {
2143 # Assume we have a file of some sort, and output it into the
2144 # dependency variable. Autoconf substitutions are not output;
2145 # rarely is a new dependency substituted into e.g. foo_LDADD
2146 # -- but bad things (e.g. -lX11) are routinely substituted.
2147 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2148 # and handled specially below.
2149 return $val;
2150 }
2151 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2152 {
2153 handle_LIBOBJS ($subvar, $cond, $1);
2154 $seen_libobjs = 1;
2155 return $val;
2156 }
2157 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2158 {
2159 handle_ALLOCA ($subvar, $cond, $1);
2160 return $val;
2161 }
2162 else
2163 {
2164 return ();
2165 }
2166 });
2168 return $seen_libobjs;
2169 }
2171 # handle_LIBOBJS_or_ALLOCA ($VAR)
2172 # -------------------------------
2173 # Definitions common to LIBOBJS and ALLOCA.
2174 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2175 sub handle_LIBOBJS_or_ALLOCA ($)
2176 {
2177 my ($var) = @_;
2179 my $dir = $config_libobj_dir ? "$config_libobj_dir/" : '';
2181 # If LIBOBJS files must be built in another directory we have
2182 # to define LIBOBJDIR and ensure the files get cleaned.
2183 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2184 # is achieved by `rm -f *.($OBJEXT)' in compile.am.
2185 if ($config_libobj_dir
2186 && $relative_dir ne $config_libobj_dir)
2187 {
2188 if (option 'subdir-objects')
2189 {
2190 # In the top-level Makefile we do not use $(top_builddir), because
2191 # we are already there, and since the targets are built without
2192 # a $(top_builddir), it helps BSD Make to match them with
2193 # dependencies.
2194 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2195 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2196 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2197 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2198 # be created by libtool as a side-effect of creating LTLIBOBJS).
2199 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2201 }
2202 else
2203 {
2204 error ("`\$($var)' cannot be used outside `$dir' if"
2205 . " `subdir-objects' is not set");
2206 }
2207 }
2209 return $dir;
2210 }
2212 sub handle_LIBOBJS ($$$)
2213 {
2214 my ($var, $cond, $lt) = @_;
2215 my $myobjext = $lt ? 'lo' : 'o';
2216 $lt ||= '';
2218 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2219 if ! keys %libsources;
2221 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2223 foreach my $iter (keys %libsources)
2224 {
2225 if ($iter =~ /\.[cly]$/)
2226 {
2227 &saw_extension ($&);
2228 &saw_extension ('.c');
2229 }
2231 if ($iter =~ /\.h$/)
2232 {
2233 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2234 }
2235 elsif ($iter ne 'alloca.c')
2236 {
2237 my $rewrite = $iter;
2238 $rewrite =~ s/\.c$/.P$myobjext/;
2239 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2240 $rewrite = "^" . quotemeta ($iter) . "\$";
2241 # Only require the file if it is not a built source.
2242 my $bs = var ('BUILT_SOURCES');
2243 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2244 {
2245 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2246 }
2247 }
2248 }
2249 }
2251 sub handle_ALLOCA ($$$)
2252 {
2253 my ($var, $cond, $lt) = @_;
2254 my $myobjext = $lt ? 'lo' : 'o';
2255 $lt ||= '';
2256 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2258 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2259 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2260 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2261 &saw_extension ('.c');
2262 }
2264 # Canonicalize the input parameter
2265 sub canonicalize
2266 {
2267 my ($string) = @_;
2268 $string =~ tr/A-Za-z0-9_\@/_/c;
2269 return $string;
2270 }
2272 # Canonicalize a name, and check to make sure the non-canonical name
2273 # is never used. Returns canonical name. Arguments are name and a
2274 # list of suffixes to check for.
2275 sub check_canonical_spelling
2276 {
2277 my ($name, @suffixes) = @_;
2279 my $xname = &canonicalize ($name);
2280 if ($xname ne $name)
2281 {
2282 foreach my $xt (@suffixes)
2283 {
2284 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2285 }
2286 }
2288 return $xname;
2289 }
2292 # handle_compile ()
2293 # -----------------
2294 # Set up the compile suite.
2295 sub handle_compile ()
2296 {
2297 return
2298 unless $get_object_extension_was_run;
2300 # Boilerplate.
2301 my $default_includes = '';
2302 if (! option 'nostdinc')
2303 {
2304 $default_includes = ' -I. -I$(srcdir)';
2306 my $var = var 'CONFIG_HEADER';
2307 if ($var)
2308 {
2309 foreach my $hdr (split (' ', $var->variable_value))
2310 {
2311 $default_includes .= ' -I' . dirname ($hdr);
2312 }
2313 }
2314 }
2316 my (@mostly_rms, @dist_rms);
2317 foreach my $item (sort keys %compile_clean_files)
2318 {
2319 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2320 {
2321 push (@mostly_rms, "\t-rm -f $item");
2322 }
2323 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2324 {
2325 push (@dist_rms, "\t-rm -f $item");
2326 }
2327 else
2328 {
2329 prog_error 'invalid entry in %compile_clean_files';
2330 }
2331 }
2333 my ($coms, $vars, $rules) =
2334 &file_contents_internal (1, "$libdir/am/compile.am",
2335 new Automake::Location,
2336 ('DEFAULT_INCLUDES' => $default_includes,
2337 'MOSTLYRMS' => join ("\n", @mostly_rms),
2338 'DISTRMS' => join ("\n", @dist_rms)));
2339 $output_vars .= $vars;
2340 $output_rules .= "$coms$rules";
2342 # Check for automatic de-ANSI-fication.
2343 if (option 'ansi2knr')
2344 {
2345 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2346 my $ansi2knr_dir = '';
2348 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2349 TRUE, "ANSI2KNR", "U");
2351 # topdir is where ansi2knr should be.
2352 if ($ansi2knr_filename eq 'ansi2knr')
2353 {
2354 # Only require ansi2knr files if they should appear in
2355 # this directory.
2356 require_file ($ansi2knr_where, FOREIGN,
2357 'ansi2knr.c', 'ansi2knr.1');
2359 # ansi2knr needs to be built before subdirs, so unshift it.
2360 unshift (@all, '$(ANSI2KNR)');
2361 }
2362 else
2363 {
2364 $ansi2knr_dir = dirname ($ansi2knr_filename);
2365 }
2367 $output_rules .= &file_contents ('ansi2knr',
2368 new Automake::Location,
2369 'ANSI2KNR-DIR' => $ansi2knr_dir);
2371 }
2372 }
2374 # handle_libtool ()
2375 # -----------------
2376 # Handle libtool rules.
2377 sub handle_libtool
2378 {
2379 return unless var ('LIBTOOL');
2381 # Libtool requires some files, but only at top level.
2382 # (Starting with Libtool 2.0 we do not have to bother. These
2383 # requirements are done with AC_REQUIRE_AUX_FILE.)
2384 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2385 if $relative_dir eq '.' && ! $libtool_new_api;
2387 my @libtool_rms;
2388 foreach my $item (sort keys %libtool_clean_directories)
2389 {
2390 my $dir = ($item eq '.') ? '' : "$item/";
2391 # .libs is for Unix, _libs for DOS.
2392 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2393 }
2395 check_user_variables 'LIBTOOLFLAGS';
2397 # Output the libtool compilation rules.
2398 $output_rules .= &file_contents ('libtool',
2399 new Automake::Location,
2400 LTRMS => join ("\n", @libtool_rms));
2401 }
2403 # handle_programs ()
2404 # ------------------
2405 # Handle C programs.
2406 sub handle_programs
2407 {
2408 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2409 'bin', 'sbin', 'libexec', 'pkglib',
2410 'noinst', 'check');
2411 return if ! @proglist;
2413 my $seen_global_libobjs =
2414 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2416 foreach my $pair (@proglist)
2417 {
2418 my ($where, $one_file) = @$pair;
2420 my $seen_libobjs = 0;
2421 my $obj = get_object_extension '.$(OBJEXT)';
2423 # Strip any $(EXEEXT) suffix the user might have added, or this
2424 # will confuse &handle_source_transform and &check_canonical_spelling.
2425 # We'll add $(EXEEXT) back later anyway.
2426 $one_file =~ s/\$\(EXEEXT\)$//;
2428 $known_programs{$one_file} = $where;
2430 # Canonicalize names and check for misspellings.
2431 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2432 '_SOURCES', '_OBJECTS',
2433 '_DEPENDENCIES');
2435 $where->push_context ("while processing program `$one_file'");
2436 $where->set (INTERNAL->get);
2438 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2439 NONLIBTOOL => 1, LIBTOOL => 0);
2441 if (var ($xname . "_LDADD"))
2442 {
2443 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2444 }
2445 else
2446 {
2447 # User didn't define prog_LDADD override. So do it.
2448 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2450 # This does a bit too much work. But we need it to
2451 # generate _DEPENDENCIES when appropriate.
2452 if (var ('LDADD'))
2453 {
2454 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2455 }
2456 }
2458 reject_var ($xname . '_LIBADD',
2459 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2461 set_seen ($xname . '_DEPENDENCIES');
2462 set_seen ($xname . '_LDFLAGS');
2464 # Determine program to use for link.
2465 my $xlink = &define_per_target_linker_variable ($linker, $xname);
2467 # If the resulting program lies into a subdirectory,
2468 # make sure this directory will exist.
2469 my $dirstamp = require_build_directory_maybe ($one_file);
2471 $output_rules .= &file_contents ('program',
2472 $where,
2473 PROGRAM => $one_file,
2474 XPROGRAM => $xname,
2475 XLINK => $xlink,
2476 DIRSTAMP => $dirstamp,
2477 EXEEXT => '$(EXEEXT)');
2479 if ($seen_libobjs || $seen_global_libobjs)
2480 {
2481 if (var ($xname . '_LDADD'))
2482 {
2483 &check_libobjs_sources ($xname, $xname . '_LDADD');
2484 }
2485 elsif (var ('LDADD'))
2486 {
2487 &check_libobjs_sources ($xname, 'LDADD');
2488 }
2489 }
2490 }
2491 }
2494 # handle_libraries ()
2495 # -------------------
2496 # Handle libraries.
2497 sub handle_libraries
2498 {
2499 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2500 'lib', 'pkglib', 'noinst', 'check');
2501 return if ! @liblist;
2503 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2504 'noinst', 'check');
2506 if (@prefix)
2507 {
2508 my $var = rvar ($prefix[0] . '_LIBRARIES');
2509 $var->requires_variables ('library used', 'RANLIB');
2510 }
2512 &define_variable ('AR', 'ar', INTERNAL);
2513 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2515 foreach my $pair (@liblist)
2516 {
2517 my ($where, $onelib) = @$pair;
2519 my $seen_libobjs = 0;
2520 # Check that the library fits the standard naming convention.
2521 my $bn = basename ($onelib);
2522 if ($bn !~ /^lib.*\.a$/)
2523 {
2524 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2525 my $suggestion = dirname ($onelib) . "/$bn";
2526 $suggestion =~ s|^\./||g;
2527 msg ('error-gnu/warn', $where,
2528 "`$onelib' is not a standard library name\n"
2529 . "did you mean `$suggestion'?")
2530 }
2532 $where->push_context ("while processing library `$onelib'");
2533 $where->set (INTERNAL->get);
2535 my $obj = get_object_extension '.$(OBJEXT)';
2537 # Canonicalize names and check for misspellings.
2538 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2539 '_OBJECTS', '_DEPENDENCIES',
2540 '_AR');
2542 if (! var ($xlib . '_AR'))
2543 {
2544 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2545 }
2547 # Generate support for conditional object inclusion in
2548 # libraries.
2549 if (var ($xlib . '_LIBADD'))
2550 {
2551 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2552 {
2553 $seen_libobjs = 1;
2554 }
2555 }
2556 else
2557 {
2558 &define_variable ($xlib . "_LIBADD", '', $where);
2559 }
2561 reject_var ($xlib . '_LDADD',
2562 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2564 # Make sure we at look at this.
2565 set_seen ($xlib . '_DEPENDENCIES');
2567 &handle_source_transform ($xlib, $onelib, $obj, $where,
2568 NONLIBTOOL => 1, LIBTOOL => 0);
2570 # If the resulting library lies into a subdirectory,
2571 # make sure this directory will exist.
2572 my $dirstamp = require_build_directory_maybe ($onelib);
2574 $output_rules .= &file_contents ('library',
2575 $where,
2576 LIBRARY => $onelib,
2577 XLIBRARY => $xlib,
2578 DIRSTAMP => $dirstamp);
2580 if ($seen_libobjs)
2581 {
2582 if (var ($xlib . '_LIBADD'))
2583 {
2584 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2585 }
2586 }
2587 }
2588 }
2591 # handle_ltlibraries ()
2592 # ---------------------
2593 # Handle shared libraries.
2594 sub handle_ltlibraries
2595 {
2596 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2597 'noinst', 'lib', 'pkglib', 'check');
2598 return if ! @liblist;
2600 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2601 'noinst', 'check');
2603 if (@prefix)
2604 {
2605 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2606 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2607 }
2609 my %instdirs = ();
2610 my %instconds = ();
2611 my %liblocations = (); # Location (in Makefile.am) of each library.
2613 foreach my $key (@prefix)
2614 {
2615 # Get the installation directory of each library.
2616 (my $dir = $key) =~ s/^nobase_//;
2617 my $var = rvar ($key . '_LTLIBRARIES');
2619 # We reject libraries which are installed in several places
2620 # in the same condition, because we can only specify one
2621 # `-rpath' option.
2622 $var->traverse_recursively
2623 (sub
2624 {
2625 my ($var, $val, $cond, $full_cond) = @_;
2626 my $hcond = $full_cond->human;
2627 my $where = $var->rdef ($cond)->location;
2628 # A library cannot be installed in different directory
2629 # in overlapping conditions.
2630 if (exists $instconds{$val})
2631 {
2632 my ($msg, $acond) =
2633 $instconds{$val}->ambiguous_p ($val, $full_cond);
2635 if ($msg)
2636 {
2637 error ($where, $msg, partial => 1);
2639 my $dirtxt = "installed in `$dir'";
2640 $dirtxt = "built for `$dir'"
2641 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2642 my $dircond =
2643 $full_cond->true ? "" : " in condition $hcond";
2645 error ($where, "`$val' should be $dirtxt$dircond ...",
2646 partial => 1);
2648 my $hacond = $acond->human;
2649 my $adir = $instdirs{$val}{$acond};
2650 my $adirtxt = "installed in `$adir'";
2651 $adirtxt = "built for `$adir'"
2652 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2653 || $adir eq 'check');
2654 my $adircond = $acond->true ? "" : " in condition $hacond";
2656 my $onlyone = ($dir ne $adir) ?
2657 ("\nLibtool libraries can be built for only one "
2658 . "destination.") : "";
2660 error ($liblocations{$val}{$acond},
2661 "... and should also be $adirtxt$adircond.$onlyone");
2662 return;
2663 }
2664 }
2665 else
2666 {
2667 $instconds{$val} = new Automake::DisjConditions;
2668 }
2669 $instdirs{$val}{$full_cond} = $dir;
2670 $liblocations{$val}{$full_cond} = $where;
2671 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2672 },
2673 sub
2674 {
2675 return ();
2676 },
2677 skip_ac_subst => 1);
2678 }
2680 foreach my $pair (@liblist)
2681 {
2682 my ($where, $onelib) = @$pair;
2684 my $seen_libobjs = 0;
2685 my $obj = get_object_extension '.lo';
2687 # Canonicalize names and check for misspellings.
2688 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2689 '_SOURCES', '_OBJECTS',
2690 '_DEPENDENCIES');
2692 # Check that the library fits the standard naming convention.
2693 my $libname_rx = '^lib.*\.la';
2694 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2695 my $ldvar2 = var ('LDFLAGS');
2696 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2697 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2698 {
2699 # Relax name checking for libtool modules.
2700 $libname_rx = '\.la';
2701 }
2703 my $bn = basename ($onelib);
2704 if ($bn !~ /$libname_rx$/)
2705 {
2706 my $type = 'library';
2707 if ($libname_rx eq '\.la')
2708 {
2709 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2710 $type = 'module';
2711 }
2712 else
2713 {
2714 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2715 }
2716 my $suggestion = dirname ($onelib) . "/$bn";
2717 $suggestion =~ s|^\./||g;
2718 msg ('error-gnu/warn', $where,
2719 "`$onelib' is not a standard libtool $type name\n"
2720 . "did you mean `$suggestion'?")
2721 }
2723 $where->push_context ("while processing Libtool library `$onelib'");
2724 $where->set (INTERNAL->get);
2726 # Make sure we look at these.
2727 set_seen ($xlib . '_LDFLAGS');
2728 set_seen ($xlib . '_DEPENDENCIES');
2730 # Generate support for conditional object inclusion in
2731 # libraries.
2732 if (var ($xlib . '_LIBADD'))
2733 {
2734 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2735 {
2736 $seen_libobjs = 1;
2737 }
2738 }
2739 else
2740 {
2741 &define_variable ($xlib . "_LIBADD", '', $where);
2742 }
2744 reject_var ("${xlib}_LDADD",
2745 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2748 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2749 NONLIBTOOL => 0, LIBTOOL => 1);
2751 # Determine program to use for link.
2752 my $xlink = &define_per_target_linker_variable ($linker, $xlib);
2754 my $rpathvar = "am_${xlib}_rpath";
2755 my $rpath = "\$($rpathvar)";
2756 foreach my $rcond ($instconds{$onelib}->conds)
2757 {
2758 my $val;
2759 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2760 || $instdirs{$onelib}{$rcond} eq 'noinst'
2761 || $instdirs{$onelib}{$rcond} eq 'check')
2762 {
2763 # It's an EXTRA_ library, so we can't specify -rpath,
2764 # because we don't know where the library will end up.
2765 # The user probably knows, but generally speaking automake
2766 # doesn't -- and in fact configure could decide
2767 # dynamically between two different locations.
2768 $val = '';
2769 }
2770 else
2771 {
2772 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2773 }
2774 if ($rcond->true)
2775 {
2776 # If $rcond is true there is only one condition and
2777 # there is no point defining an helper variable.
2778 $rpath = $val;
2779 }
2780 else
2781 {
2782 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2783 }
2784 }
2786 # If the resulting library lies into a subdirectory,
2787 # make sure this directory will exist.
2788 my $dirstamp = require_build_directory_maybe ($onelib);
2790 # Remember to cleanup .libs/ in this directory.
2791 my $dirname = dirname $onelib;
2792 $libtool_clean_directories{$dirname} = 1;
2794 $output_rules .= &file_contents ('ltlibrary',
2795 $where,
2796 LTLIBRARY => $onelib,
2797 XLTLIBRARY => $xlib,
2798 RPATH => $rpath,
2799 XLINK => $xlink,
2800 DIRSTAMP => $dirstamp);
2801 if ($seen_libobjs)
2802 {
2803 if (var ($xlib . '_LIBADD'))
2804 {
2805 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2806 }
2807 }
2808 }
2809 }
2811 # See if any _SOURCES variable were misspelled.
2812 sub check_typos ()
2813 {
2814 # It is ok if the user sets this particular variable.
2815 set_seen 'AM_LDFLAGS';
2817 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2818 {
2819 foreach my $var (variables $primary)
2820 {
2821 my $varname = $var->name;
2822 # A configure variable is always legitimate.
2823 next if exists $configure_vars{$varname};
2825 for my $cond ($var->conditions->conds)
2826 {
2827 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2828 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2829 . " program or\nlibrary has `$1' as canonic name"
2830 . " (possible typo)")
2831 unless $var->rdef ($cond)->seen;
2832 }
2833 }
2834 }
2835 }
2838 # Handle scripts.
2839 sub handle_scripts
2840 {
2841 # NOTE we no longer automatically clean SCRIPTS, because it is
2842 # useful to sometimes distribute scripts verbatim. This happens
2843 # e.g. in Automake itself.
2844 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2845 'bin', 'sbin', 'libexec', 'pkgdata',
2846 'noinst', 'check');
2847 }
2852 ## ------------------------ ##
2853 ## Handling Texinfo files. ##
2854 ## ------------------------ ##
2856 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2857 # &scan_texinfo_file ($FILENAME)
2858 # ------------------------------
2859 # $OUTFILE - name of the info file produced by $FILENAME.
2860 # $VFILE - name of the version.texi file used (undef if none).
2861 # @CLEAN_FILES - list of byproducts (indexes etc.)
2862 sub scan_texinfo_file ($)
2863 {
2864 my ($filename) = @_;
2866 # Some of the following extensions are always created, no matter
2867 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2868 # are only created when they are used. We used to scan $FILENAME
2869 # for their use, but that is not enough: they could be used in
2870 # included files. We can't scan included files because we don't
2871 # know the include path. Therefore we always erase these files, no
2872 # matter whether they are used or not.
2873 #
2874 # (tmp is only created if an @macro is used and a certain e-TeX
2875 # feature is not available.)
2876 my %clean_suffixes =
2877 map { $_ => 1 } (qw(aux log toc tmp
2878 cp cps
2879 fn fns
2880 ky kys
2881 vr vrs
2882 tp tps
2883 pg pgs)); # grep 'new.*index' texinfo.tex
2885 my $texi = new Automake::XFile "< $filename";
2886 verb "reading $filename";
2888 my ($outfile, $vfile);
2889 while ($_ = $texi->getline)
2890 {
2891 if (/^\@setfilename +(\S+)/)
2892 {
2893 # Honor only the first @setfilename. (It's possible to have
2894 # more occurrences later if the manual shows examples of how
2895 # to use @setfilename...)
2896 next if $outfile;
2898 $outfile = $1;
2899 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2900 {
2901 error ("$filename:$.",
2902 "output `$outfile' has unrecognized extension");
2903 return;
2904 }
2905 }
2906 # A "version.texi" file is actually any file whose name matches
2907 # "vers*.texi".
2908 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2909 {
2910 $vfile = $1;
2911 }
2913 # Try to find new or unused indexes.
2915 # Creating a new category of index.
2916 elsif (/^\@def(code)?index (\w+)/)
2917 {
2918 $clean_suffixes{$2} = 1;
2919 $clean_suffixes{"$2s"} = 1;
2920 }
2922 # Merging an index into an another.
2923 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2924 {
2925 delete $clean_suffixes{"$2s"};
2926 $clean_suffixes{"$3s"} = 1;
2927 }
2929 }
2931 if (! $outfile)
2932 {
2933 err_am "`$filename' missing \@setfilename";
2934 return;
2935 }
2937 my $infobase = basename ($filename);
2938 $infobase =~ s/\.te?xi(nfo)?$//;
2939 return ($outfile, $vfile,
2940 map { "$infobase.$_" } (sort keys %clean_suffixes));
2941 }
2944 # ($DIRSTAMP, @CLEAN_FILES)
2945 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2946 # ------------------------------------------------------------------
2947 # SOURCE - the source Texinfo file
2948 # DEST - the destination Info file
2949 # INSRC - wether DEST should be built in the source tree
2950 # DEPENDENCIES - known dependencies
2951 sub output_texinfo_build_rules ($$$@)
2952 {
2953 my ($source, $dest, $insrc, @deps) = @_;
2955 # Split `a.texi' into `a' and `.texi'.
2956 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2957 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2959 $ssfx ||= "";
2960 $dsfx ||= "";
2962 # We can output two kinds of rules: the "generic" rules use Make
2963 # suffix rules and are appropriate when $source and $dest do not lie
2964 # in a sub-directory; the "specific" rules are needed in the other
2965 # case.
2966 #
2967 # The former are output only once (this is not really apparent here,
2968 # but just remember that some logic deeper in Automake will not
2969 # output the same rule twice); while the later need to be output for
2970 # each Texinfo source.
2971 my $generic;
2972 my $makeinfoflags;
2973 my $sdir = dirname $source;
2974 if ($sdir eq '.' && dirname ($dest) eq '.')
2975 {
2976 $generic = 1;
2977 $makeinfoflags = '-I $(srcdir)';
2978 }
2979 else
2980 {
2981 $generic = 0;
2982 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
2983 }
2985 # A directory can contain two kinds of info files: some built in the
2986 # source tree, and some built in the build tree. The rules are
2987 # different in each case. However we cannot output two different
2988 # set of generic rules. Because in-source builds are more usual, we
2989 # use generic rules in this case and fall back to "specific" rules
2990 # for build-dir builds. (It should not be a problem to invert this
2991 # if needed.)
2992 $generic = 0 unless $insrc;
2994 # We cannot use a suffix rule to build info files with an empty
2995 # extension. Otherwise we would output a single suffix inference
2996 # rule, with separate dependencies, as in
2997 #
2998 # .texi:
2999 # $(MAKEINFO) ...
3000 # foo.info: foo.texi
3001 #
3002 # which confuse Solaris make. (See the Autoconf manual for
3003 # details.) Therefore we use a specific rule in this case. This
3004 # applies to info files only (dvi and pdf files always have an
3005 # extension).
3006 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3008 # If the resulting file lie into a subdirectory,
3009 # make sure this directory will exist.
3010 my $dirstamp = require_build_directory_maybe ($dest);
3012 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3014 $output_rules .= file_contents ('texibuild',
3015 new Automake::Location,
3016 DEPS => "@deps",
3017 DEST_PREFIX => $dpfx,
3018 DEST_INFO_PREFIX => $dipfx,
3019 DEST_SUFFIX => $dsfx,
3020 DIRSTAMP => $dirstamp,
3021 GENERIC => $generic,
3022 GENERIC_INFO => $generic_info,
3023 INSRC => $insrc,
3024 MAKEINFOFLAGS => $makeinfoflags,
3025 SOURCE => ($generic
3026 ? '$<' : $source),
3027 SOURCE_INFO => ($generic_info
3028 ? '$<' : $source),
3029 SOURCE_REAL => $source,
3030 SOURCE_SUFFIX => $ssfx,
3031 );
3032 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3033 }
3036 # $TEXICLEANS
3037 # handle_texinfo_helper ($info_texinfos)
3038 # --------------------------------------
3039 # Handle all Texinfo source; helper for handle_texinfo.
3040 sub handle_texinfo_helper ($)
3041 {
3042 my ($info_texinfos) = @_;
3043 my (@infobase, @info_deps_list, @texi_deps);
3044 my %versions;
3045 my $done = 0;
3046 my @texi_cleans;
3048 # Build a regex matching user-cleaned files.
3049 my $d = var 'DISTCLEANFILES';
3050 my $c = var 'CLEANFILES';
3051 my @f = ();
3052 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3053 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3054 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3055 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3057 foreach my $texi
3058 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3059 {
3060 my $infobase = $texi;
3061 $infobase =~ s/\.(txi|texinfo|texi)$//;
3063 if ($infobase eq $texi)
3064 {
3065 # FIXME: report line number.
3066 err_am "texinfo file `$texi' has unrecognized extension";
3067 next;
3068 }
3070 push @infobase, $infobase;
3072 # If 'version.texi' is referenced by input file, then include
3073 # automatic versioning capability.
3074 my ($out_file, $vtexi, @clean_files) =
3075 scan_texinfo_file ("$relative_dir/$texi")
3076 or next;
3077 push (@texi_cleans, @clean_files);
3079 # If the Texinfo source is in a subdirectory, create the
3080 # resulting info in this subdirectory. If it is in the current
3081 # directory, try hard to not prefix "./" because it breaks the
3082 # generic rules.
3083 my $outdir = dirname ($texi) . '/';
3084 $outdir = "" if $outdir eq './';
3085 $out_file = $outdir . $out_file;
3087 # Until Automake 1.6.3, .info files were built in the
3088 # source tree. This was an obstacle to the support of
3089 # non-distributed .info files, and non-distributed .texi
3090 # files.
3091 #
3092 # * Non-distributed .texi files is important in some packages
3093 # where .texi files are built at make time, probably using
3094 # other binaries built in the package itself, maybe using
3095 # tools or information found on the build host. Because
3096 # these files are not distributed they are always rebuilt
3097 # at make time; they should therefore not lie in the source
3098 # directory. One plan was to support this using
3099 # nodist_info_TEXINFOS or something similar. (Doing this
3100 # requires some sanity checks. For instance Automake should
3101 # not allow:
3102 # dist_info_TEXINFO = foo.texi
3103 # nodist_foo_TEXINFO = included.texi
3104 # because a distributed file should never depend on a
3105 # non-distributed file.)
3106 #
3107 # * If .texi files are not distributed, then .info files should
3108 # not be distributed either. There are also cases where one
3109 # want to distribute .texi files, but do not want to
3110 # distribute the .info files. For instance the Texinfo package
3111 # distributes the tool used to build these files; it would
3112 # be a waste of space to distribute them. It's not clear
3113 # which syntax we should use to indicate that .info files should
3114 # not be distributed. Akim Demaille suggested that eventually
3115 # we switch to a new syntax:
3116 # | Maybe we should take some inspiration from what's already
3117 # | done in the rest of Automake. Maybe there is too much
3118 # | syntactic sugar here, and you want
3119 # | nodist_INFO = bar.info
3120 # | dist_bar_info_SOURCES = bar.texi
3121 # | bar_texi_DEPENDENCIES = foo.texi
3122 # | with a bit of magic to have bar.info represent the whole
3123 # | bar*info set. That's a lot more verbose that the current
3124 # | situation, but it is # not new, hence the user has less
3125 # | to learn.
3126 # |
3127 # | But there is still too much room for meaningless specs:
3128 # | nodist_INFO = bar.info
3129 # | dist_bar_info_SOURCES = bar.texi
3130 # | dist_PS = bar.ps something-written-by-hand.ps
3131 # | nodist_bar_ps_SOURCES = bar.texi
3132 # | bar_texi_DEPENDENCIES = foo.texi
3133 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3134 #
3135 # Back to the point, it should be clear that in order to support
3136 # non-distributed .info files, we need to build them in the
3137 # build tree, not in the source tree (non-distributed .texi
3138 # files are less of a problem, because we do not output build
3139 # rules for them). In Automake 1.7 .info build rules have been
3140 # largely cleaned up so that .info files get always build in the
3141 # build tree, even when distributed. The idea was that
3142 # (1) if during a VPATH build the .info file was found to be
3143 # absent or out-of-date (in the source tree or in the
3144 # build tree), Make would rebuild it in the build tree.
3145 # If an up-to-date source-tree of the .info file existed,
3146 # make would not rebuild it in the build tree.
3147 # (2) having two copies of .info files, one in the source tree
3148 # and one (newer) in the build tree is not a problem
3149 # because `make dist' always pick files in the build tree
3150 # first.
3151 # However it turned out the be a bad idea for several reasons:
3152 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3153 # like GNU Make on point (1) above. These implementations
3154 # of Make would always rebuild .info files in the build
3155 # tree, even if such files were up to date in the source
3156 # tree. Consequently, it was impossible to perform a VPATH
3157 # build of a package containing Texinfo files using these
3158 # Make implementations.
3159 # (Refer to the Autoconf Manual, section "Limitation of
3160 # Make", paragraph "VPATH", item "target lookup", for
3161 # an account of the differences between these
3162 # implementations.)
3163 # * The GNU Coding Standards require these files to be built
3164 # in the source-tree (when they are distributed, that is).
3165 # * Keeping a fresher copy of distributed files in the
3166 # build tree can be annoying during development because
3167 # - if the files is kept under CVS, you really want it
3168 # to be updated in the source tree
3169 # - it is confusing that `make distclean' does not erase
3170 # all files in the build tree.
3171 #
3172 # Consequently, starting with Automake 1.8, .info files are
3173 # built in the source tree again. Because we still plan to
3174 # support non-distributed .info files at some point, we
3175 # have a single variable ($INSRC) that controls whether
3176 # the current .info file must be built in the source tree
3177 # or in the build tree. Actually this variable is switched
3178 # off for .info files that appear to be cleaned; this is
3179 # for backward compatibility with package such as Texinfo,
3180 # which do things like
3181 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3182 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3183 # # Do not create info files for distribution.
3184 # dist-info:
3185 # in order not to distribute .info files.
3186 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3188 my $soutdir = '$(srcdir)/' . $outdir;
3189 $outdir = $soutdir if $insrc;
3191 # If user specified file_TEXINFOS, then use that as explicit
3192 # dependency list.
3193 @texi_deps = ();
3194 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3196 my $canonical = canonicalize ($infobase);
3197 if (var ($canonical . "_TEXINFOS"))
3198 {
3199 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3200 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3201 }
3203 my ($dirstamp, @cfiles) =
3204 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3205 push (@texi_cleans, @cfiles);
3207 push (@info_deps_list, $out_file);
3209 # If a vers*.texi file is needed, emit the rule.
3210 if ($vtexi)
3211 {
3212 err_am ("`$vtexi', included in `$texi', "
3213 . "also included in `$versions{$vtexi}'")
3214 if defined $versions{$vtexi};
3215 $versions{$vtexi} = $texi;
3217 # We number the stamp-vti files. This is doable since the
3218 # actual names don't matter much. We only number starting
3219 # with the second one, so that the common case looks nice.
3220 my $vti = ($done ? $done : 'vti');
3221 ++$done;
3223 # This is ugly, but it is our historical practice.
3224 if ($config_aux_dir_set_in_configure_ac)
3225 {
3226 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3227 'mdate-sh');
3228 }
3229 else
3230 {
3231 require_file_with_macro (TRUE, 'info_TEXINFOS',
3232 FOREIGN, 'mdate-sh');
3233 }
3235 my $conf_dir;
3236 if ($config_aux_dir_set_in_configure_ac)
3237 {
3238 $conf_dir = "$am_config_aux_dir/";
3239 }
3240 else
3241 {
3242 $conf_dir = '$(srcdir)/';
3243 }
3244 $output_rules .= file_contents ('texi-vers',
3245 new Automake::Location,
3246 TEXI => $texi,
3247 VTI => $vti,
3248 STAMPVTI => "${soutdir}stamp-$vti",
3249 VTEXI => "$soutdir$vtexi",
3250 MDDIR => $conf_dir,
3251 DIRSTAMP => $dirstamp);
3252 }
3253 }
3255 # Handle location of texinfo.tex.
3256 my $need_texi_file = 0;
3257 my $texinfodir;
3258 if (var ('TEXINFO_TEX'))
3259 {
3260 # The user defined TEXINFO_TEX so assume he knows what he is
3261 # doing.
3262 $texinfodir = ('$(srcdir)/'
3263 . dirname (variable_value ('TEXINFO_TEX')));
3264 }
3265 elsif (option 'cygnus')
3266 {
3267 $texinfodir = '$(top_srcdir)/../texinfo';
3268 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3269 }
3270 elsif ($config_aux_dir_set_in_configure_ac)
3271 {
3272 $texinfodir = $am_config_aux_dir;
3273 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3274 $need_texi_file = 2; # so that we require_conf_file later
3275 }
3276 else
3277 {
3278 $texinfodir = '$(srcdir)';
3279 $need_texi_file = 1;
3280 }
3281 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3283 push (@dist_targets, 'dist-info');
3285 if (! option 'no-installinfo')
3286 {
3287 # Make sure documentation is made and installed first. Use
3288 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3289 # get run twice during "make all".
3290 unshift (@all, '$(INFO_DEPS)');
3291 }
3293 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3294 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3295 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3296 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3298 # This next isn't strictly needed now -- the places that look here
3299 # could easily be changed to look in info_TEXINFOS. But this is
3300 # probably better, in case noinst_TEXINFOS is ever supported.
3301 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3303 # Do some error checking. Note that this file is not required
3304 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3305 # up above.
3306 if ($need_texi_file && ! option 'no-texinfo.tex')
3307 {
3308 if ($need_texi_file > 1)
3309 {
3310 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3311 'texinfo.tex');
3312 }
3313 else
3314 {
3315 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3316 'texinfo.tex');
3317 }
3318 }
3320 return makefile_wrap ("", "\t ", @texi_cleans);
3321 }
3324 # handle_texinfo ()
3325 # -----------------
3326 # Handle all Texinfo source.
3327 sub handle_texinfo ()
3328 {
3329 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3330 # FIXME: I think this is an obsolete future feature name.
3331 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3333 my $info_texinfos = var ('info_TEXINFOS');
3334 my $texiclean = "";
3335 if ($info_texinfos)
3336 {
3337 $texiclean = handle_texinfo_helper ($info_texinfos);
3338 }
3339 $output_rules .= file_contents ('texinfos',
3340 new Automake::Location,
3341 TEXICLEAN => $texiclean,
3342 'LOCAL-TEXIS' => !!$info_texinfos);
3343 }
3346 # Handle any man pages.
3347 sub handle_man_pages
3348 {
3349 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3351 # Find all the sections in use. We do this by first looking for
3352 # "standard" sections, and then looking for any additional
3353 # sections used in man_MANS.
3354 my (%sections, %vlist);
3355 # We handle nodist_ for uniformity. man pages aren't distributed
3356 # by default so it isn't actually very important.
3357 foreach my $pfx ('', 'dist_', 'nodist_')
3358 {
3359 # Add more sections as needed.
3360 foreach my $section ('0'..'9', 'n', 'l')
3361 {
3362 my $varname = $pfx . 'man' . $section . '_MANS';
3363 if (var ($varname))
3364 {
3365 $sections{$section} = 1;
3366 $varname = '$(' . $varname . ')';
3367 $vlist{$varname} = 1;
3369 &push_dist_common ($varname)
3370 if $pfx eq 'dist_';
3371 }
3372 }
3374 my $varname = $pfx . 'man_MANS';
3375 my $var = var ($varname);
3376 if ($var)
3377 {
3378 foreach ($var->value_as_list_recursive)
3379 {
3380 # A page like `foo.1c' goes into man1dir.
3381 if (/\.([0-9a-z])([a-z]*)$/)
3382 {
3383 $sections{$1} = 1;
3384 }
3385 }
3387 $varname = '$(' . $varname . ')';
3388 $vlist{$varname} = 1;
3389 &push_dist_common ($varname)
3390 if $pfx eq 'dist_';
3391 }
3392 }
3394 return unless %sections;
3396 # Now for each section, generate an install and uninstall rule.
3397 # Sort sections so output is deterministic.
3398 foreach my $section (sort keys %sections)
3399 {
3400 $output_rules .= &file_contents ('mans',
3401 new Automake::Location,
3402 SECTION => $section);
3403 }
3405 my @mans = sort keys %vlist;
3406 $output_vars .= file_contents ('mans-vars',
3407 new Automake::Location,
3408 MANS => "@mans");
3410 push (@all, '$(MANS)')
3411 unless option 'no-installman';
3412 }
3414 # Handle DATA variables.
3415 sub handle_data
3416 {
3417 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3418 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3419 'sysconf', 'sharedstate', 'localstate',
3420 'pkgdata', 'lisp', 'noinst', 'check');
3421 }
3423 # Handle TAGS.
3424 sub handle_tags
3425 {
3426 my @tag_deps = ();
3427 my @ctag_deps = ();
3428 if (var ('SUBDIRS'))
3429 {
3430 $output_rules .= ("tags-recursive:\n"
3431 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3432 # Never fail here if a subdir fails; it
3433 # isn't important.
3434 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3435 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3436 . "\tdone\n");
3437 push (@tag_deps, 'tags-recursive');
3438 &depend ('.PHONY', 'tags-recursive');
3440 $output_rules .= ("ctags-recursive:\n"
3441 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3442 # Never fail here if a subdir fails; it
3443 # isn't important.
3444 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3445 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3446 . "\tdone\n");
3447 push (@ctag_deps, 'ctags-recursive');
3448 &depend ('.PHONY', 'ctags-recursive');
3449 }
3451 if (&saw_sources_p (1)
3452 || var ('ETAGS_ARGS')
3453 || @tag_deps)
3454 {
3455 my @config;
3456 foreach my $spec (@config_headers)
3457 {
3458 my ($out, @ins) = split_config_file_spec ($spec);
3459 foreach my $in (@ins)
3460 {
3461 # If the config header source is in this directory,
3462 # require it.
3463 push @config, basename ($in)
3464 if $relative_dir eq dirname ($in);
3465 }
3466 }
3467 $output_rules .= &file_contents ('tags',
3468 new Automake::Location,
3469 CONFIG => "@config",
3470 TAGSDIRS => "@tag_deps",
3471 CTAGSDIRS => "@ctag_deps");
3473 set_seen 'TAGS_DEPENDENCIES';
3474 }
3475 elsif (reject_var ('TAGS_DEPENDENCIES',
3476 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3477 . "without\nsources or `ETAGS_ARGS'"))
3478 {
3479 }
3480 else
3481 {
3482 # Every Makefile must define some sort of TAGS rule.
3483 # Otherwise, it would be possible for a top-level "make TAGS"
3484 # to fail because some subdirectory failed.
3485 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3486 # Ditto ctags.
3487 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3488 }
3489 }
3491 # Handle multilib support.
3492 sub handle_multilib
3493 {
3494 if ($seen_multilib && $relative_dir eq '.')
3495 {
3496 $output_rules .= &file_contents ('multilib', new Automake::Location);
3497 push (@all, 'all-multi');
3498 }
3499 }
3502 # user_phony_rule ($NAME)
3503 # -----------------------
3504 # Return false if rule $NAME does not exist. Otherwise,
3505 # declare it as phony, complete its definition (in case it is
3506 # conditional), and return its Automake::Rule instance.
3507 sub user_phony_rule ($)
3508 {
3509 my ($name) = @_;
3510 my $rule = rule $name;
3511 if ($rule)
3512 {
3513 depend ('.PHONY', $name);
3514 # Define $NAME in all condition where it is not already defined,
3515 # so that it is always OK to depend on $NAME.
3516 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3517 {
3518 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3519 $c, INTERNAL);
3520 $output_rules .= $c->subst_string . "$name:\n";
3521 }
3522 }
3523 return $rule;
3524 }
3527 # $BOOLEAN
3528 # &for_dist_common ($A, $B)
3529 # -------------------------
3530 # Subroutine for &handle_dist: sort files to dist.
3531 #
3532 # We put README first because it then becomes easier to make a
3533 # Usenet-compliant shar file (in these, README must be first).
3534 #
3535 # FIXME: do more ordering of files here.
3536 sub for_dist_common
3537 {
3538 return 0
3539 if $a eq $b;
3540 return -1
3541 if $a eq 'README';
3542 return 1
3543 if $b eq 'README';
3544 return $a cmp $b;
3545 }
3547 # handle_dist
3548 # -----------
3549 # Handle 'dist' target.
3550 sub handle_dist ()
3551 {
3552 # Substutions for distdit.am
3553 my %transform;
3555 # Define DIST_SUBDIRS. This must always be done, regardless of the
3556 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3557 my $subdirs = var ('SUBDIRS');
3558 if ($subdirs)
3559 {
3560 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3561 # to all possible directories, and use it. If DIST_SUBDIRS is
3562 # defined, just use it.
3564 # Note that we check DIST_SUBDIRS first on purpose, so that
3565 # we don't call has_conditional_contents for now reason.
3566 # (In the past one project used so many conditional subdirectories
3567 # that calling has_conditional_contents on SUBDIRS caused
3568 # automake to grow to 150Mb -- this should not happen with
3569 # the current implementation of has_conditional_contents,
3570 # but it's more efficient to avoid the call anyway.)
3571 if (var ('DIST_SUBDIRS'))
3572 {
3573 }
3574 elsif ($subdirs->has_conditional_contents)
3575 {
3576 define_pretty_variable
3577 ('DIST_SUBDIRS', TRUE, INTERNAL,
3578 uniq ($subdirs->value_as_list_recursive));
3579 }
3580 else
3581 {
3582 # We always define this because that is what `distclean'
3583 # wants.
3584 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3585 '$(SUBDIRS)');
3586 }
3587 }
3589 # The remaining definitions are only required when a dist target is used.
3590 return if option 'no-dist';
3592 # At least one of the archive formats must be enabled.
3593 if ($relative_dir eq '.')
3594 {
3595 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3596 $archive_defined ||=
3597 grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
3598 error (option 'no-dist-gzip',
3599 "no-dist-gzip specified but no dist-* specified, "
3600 . "at least one archive format must be enabled")
3601 unless $archive_defined;
3602 }
3604 # Look for common files that should be included in distribution.
3605 # If the aux dir is set, and it does not have a Makefile.am, then
3606 # we check for these files there as well.
3607 my $check_aux = 0;
3608 if ($relative_dir eq '.'
3609 && $config_aux_dir_set_in_configure_ac)
3610 {
3611 if (! &is_make_dir ($config_aux_dir))
3612 {
3613 $check_aux = 1;
3614 }
3615 }
3616 foreach my $cfile (@common_files)
3617 {
3618 if (dir_has_case_matching_file ($relative_dir, $cfile)
3619 # The file might be absent, but if it can be built it's ok.
3620 || rule $cfile)
3621 {
3622 &push_dist_common ($cfile);
3623 }
3625 # Don't use `elsif' here because a file might meaningfully
3626 # appear in both directories.
3627 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3628 {
3629 &push_dist_common ("$config_aux_dir/$cfile")
3630 }
3631 }
3633 # We might copy elements from $configure_dist_common to
3634 # %dist_common if we think we need to. If the file appears in our
3635 # directory, we would have discovered it already, so we don't
3636 # check that. But if the file is in a subdir without a Makefile,
3637 # we want to distribute it here if we are doing `.'. Ugly!
3638 if ($relative_dir eq '.')
3639 {
3640 foreach my $file (split (' ' , $configure_dist_common))
3641 {
3642 push_dist_common ($file)
3643 unless is_make_dir (dirname ($file));
3644 }
3645 }
3647 # Files to distributed. Don't use ->value_as_list_recursive
3648 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3649 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3650 @dist_common = uniq (sort for_dist_common (@dist_common));
3651 variable_delete 'DIST_COMMON';
3652 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3654 # Now that we've processed DIST_COMMON, disallow further attempts
3655 # to set it.
3656 $handle_dist_run = 1;
3658 # Scan EXTRA_DIST to see if we need to distribute anything from a
3659 # subdir. If so, add it to the list. I didn't want to do this
3660 # originally, but there were so many requests that I finally
3661 # relented.
3662 my $extra_dist = var ('EXTRA_DIST');
3664 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3665 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3667 # If the target `dist-hook' exists, make sure it is run. This
3668 # allows users to do random weird things to the distribution
3669 # before it is packaged up.
3670 push (@dist_targets, 'dist-hook')
3671 if user_phony_rule 'dist-hook';
3672 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3674 my $flm = option ('filename-length-max');
3675 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3677 $output_rules .= &file_contents ('distdir',
3678 new Automake::Location,
3679 %transform,
3680 FILENAME_FILTER => $filename_filter);
3681 }
3684 # check_directory ($NAME, $WHERE)
3685 # -------------------------------
3686 # Ensure $NAME is a directory, and that it uses sane name.
3687 # Use $WHERE as a location in the diagnostic, if any.
3688 sub check_directory ($$)
3689 {
3690 my ($dir, $where) = @_;
3692 error $where, "required directory $relative_dir/$dir does not exist"
3693 unless -d "$relative_dir/$dir";
3695 # If an `obj/' directory exists, BSD make will enter it before
3696 # reading `Makefile'. Hence the `Makefile' in the current directory
3697 # will not be read.
3698 #
3699 # % cat Makefile
3700 # all:
3701 # echo Hello
3702 # % cat obj/Makefile
3703 # all:
3704 # echo World
3705 # % make # GNU make
3706 # echo Hello
3707 # Hello
3708 # % pmake # BSD make
3709 # echo World
3710 # World
3711 msg ('portability', $where,
3712 "naming a subdirectory `obj' causes troubles with BSD make")
3713 if $dir eq 'obj';
3715 # `aux' is probably the most important of the following forbidden name,
3716 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3717 msg ('portability', $where,
3718 "name `$dir' is reserved on W32 and DOS platforms")
3719 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3720 }
3722 # check_directories_in_var ($VARIABLE)
3723 # ------------------------------------
3724 # Recursively check all items in variables $VARIABLE as directories
3725 sub check_directories_in_var ($)
3726 {
3727 my ($var) = @_;
3728 $var->traverse_recursively
3729 (sub
3730 {
3731 my ($var, $val, $cond, $full_cond) = @_;
3732 check_directory ($val, $var->rdef ($cond)->location);
3733 return ();
3734 },
3735 undef,
3736 skip_ac_subst => 1);
3737 }
3739 # &handle_subdirs ()
3740 # ------------------
3741 # Handle subdirectories.
3742 sub handle_subdirs ()
3743 {
3744 my $subdirs = var ('SUBDIRS');
3745 return
3746 unless $subdirs;
3748 check_directories_in_var $subdirs;
3750 my $dsubdirs = var ('DIST_SUBDIRS');
3751 check_directories_in_var $dsubdirs
3752 if $dsubdirs;
3754 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3755 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3756 }
3759 # ($REGEN, @DEPENDENCIES)
3760 # &scan_aclocal_m4
3761 # ----------------
3762 # If aclocal.m4 creation is automated, return the list of its dependencies.
3763 sub scan_aclocal_m4 ()
3764 {
3765 my $regen_aclocal = 0;
3767 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3768 set_seen 'CONFIGURE_DEPENDENCIES';
3770 if (-f 'aclocal.m4')
3771 {
3772 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3774 my $aclocal = new Automake::XFile "< aclocal.m4";
3775 my $line = $aclocal->getline;
3776 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3777 }
3779 my @ac_deps = ();
3781 if (set_seen ('ACLOCAL_M4_SOURCES'))
3782 {
3783 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3784 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3785 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3786 . "It should be safe to simply remove it.");
3787 }
3789 # Note that it might be possible that aclocal.m4 doesn't exist but
3790 # should be auto-generated. This case probably isn't very
3791 # important.
3793 return ($regen_aclocal, @ac_deps);
3794 }
3797 # Helper function for substitute_ac_subst_variables.
3798 sub substitute_ac_subst_variables_worker($)
3799 {
3800 my ($token) = @_;
3801 return "\@$token\@" if var $token;
3802 return "\${$token\}";
3803 }
3805 # substitute_ac_subst_variables ($TEXT)
3806 # -------------------------------------
3807 # Replace any occurence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3808 # variable.
3809 sub substitute_ac_subst_variables ($)
3810 {
3811 my ($text) = @_;
3812 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3813 return $text;
3814 }
3816 # @DEPENDENCIES
3817 # &prepend_srcdir (@INPUTS)
3818 # -------------------------
3819 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3820 # if an input file has a directory part the same as the current
3821 # directory, then the directory part is simply replaced by $(srcdir).
3822 # But if the directory part is different, then $(top_srcdir) is
3823 # prepended.
3824 sub prepend_srcdir (@)
3825 {
3826 my (@inputs) = @_;
3827 my @newinputs;
3829 foreach my $single (@inputs)
3830 {
3831 if (dirname ($single) eq $relative_dir)
3832 {
3833 push (@newinputs, '$(srcdir)/' . basename ($single));
3834 }
3835 else
3836 {
3837 push (@newinputs, '$(top_srcdir)/' . $single);
3838 }
3839 }
3840 return @newinputs;
3841 }
3843 # @DEPENDENCIES
3844 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3845 # ---------------------------------------------------
3846 # Compute a list of dependencies appropriate for the rebuild
3847 # rule of
3848 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3849 # Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
3850 sub rewrite_inputs_into_dependencies ($@)
3851 {
3852 my ($file, @inputs) = @_;
3853 my @res = ();
3855 for my $i (@inputs)
3856 {
3857 # We cannot create dependencies on shell variables.
3858 next if (substitute_ac_subst_variables $i) =~ /\$/;
3860 if (exists $ac_config_files_location{$i})
3861 {
3862 my $di = dirname $i;
3863 if ($di eq $relative_dir)
3864 {
3865 $i = basename $i;
3866 }
3867 # In the top-level Makefile we do not use $(top_builddir), because
3868 # we are already there, and since the targets are built without
3869 # a $(top_builddir), it helps BSD Make to match them with
3870 # dependencies.
3871 elsif ($relative_dir ne '.')
3872 {
3873 $i = '$(top_builddir)/' . $i;
3874 }
3875 }
3876 else
3877 {
3878 msg ('error', $ac_config_files_location{$file},
3879 "required file `$i' not found")
3880 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3881 ($i) = prepend_srcdir ($i);
3882 push_dist_common ($i);
3883 }
3884 push @res, $i;
3885 }
3886 return @res;
3887 }
3891 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3892 # ------------------------------------------------------------------
3893 # Handle remaking and configure stuff.
3894 # We need the name of the input file, to do proper remaking rules.
3895 sub handle_configure ($$$@)
3896 {
3897 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
3899 prog_error 'empty @inputs'
3900 unless @inputs;
3902 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
3903 $makefile_in);
3904 my $rel_makefile = basename $makefile;
3906 my $colon_infile = ':' . join (':', @inputs);
3907 $colon_infile = '' if $colon_infile eq ":$makefile.in";
3908 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
3909 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
3910 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
3911 @configure_deps, @aclocal_m4_deps,
3912 '$(top_srcdir)/' . $configure_ac);
3913 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
3914 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
3915 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
3916 @configuredeps);
3918 $output_rules .= file_contents
3919 ('configure',
3920 new Automake::Location,
3921 MAKEFILE => $rel_makefile,
3922 'MAKEFILE-DEPS' => "@rewritten",
3923 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
3924 'MAKEFILE-IN' => $rel_makefile_in,
3925 'MAKEFILE-IN-DEPS' => "@include_stack",
3926 'MAKEFILE-AM' => $rel_makefile_am,
3927 STRICTNESS => global_option 'cygnus'
3928 ? 'cygnus' : $strictness_name,
3929 'USE-DEPS' => global_option 'no-dependencies'
3930 ? ' --ignore-deps' : '',
3931 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
3932 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
3934 if ($relative_dir eq '.')
3935 {
3936 &push_dist_common ('acconfig.h')
3937 if -f 'acconfig.h';
3938 }
3940 # If we have a configure header, require it.
3941 my $hdr_index = 0;
3942 my @distclean_config;
3943 foreach my $spec (@config_headers)
3944 {
3945 $hdr_index += 1;
3946 # $CONFIG_H_PATH: config.h from top level.
3947 my ($config_h_path, @ins) = split_config_file_spec ($spec);
3948 my $config_h_dir = dirname ($config_h_path);
3950 # If the header is in the current directory we want to build
3951 # the header here. Otherwise, if we're at the topmost
3952 # directory and the header's directory doesn't have a
3953 # Makefile, then we also want to build the header.
3954 if ($relative_dir eq $config_h_dir
3955 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
3956 {
3957 my ($cn_sans_dir, $stamp_dir);
3958 if ($relative_dir eq $config_h_dir)
3959 {
3960 $cn_sans_dir = basename ($config_h_path);
3961 $stamp_dir = '';
3962 }
3963 else
3964 {
3965 $cn_sans_dir = $config_h_path;
3966 if ($config_h_dir eq '.')
3967 {
3968 $stamp_dir = '';
3969 }
3970 else
3971 {
3972 $stamp_dir = $config_h_dir . '/';
3973 }
3974 }
3976 # This will also distribute all inputs.
3977 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
3979 # Cannot define rebuild rules for filenames with shell variables.
3980 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
3982 # Header defined in this directory.
3983 my @files;
3984 if (-f $config_h_path . '.top')
3985 {
3986 push (@files, "$cn_sans_dir.top");
3987 }
3988 if (-f $config_h_path . '.bot')
3989 {
3990 push (@files, "$cn_sans_dir.bot");
3991 }
3993 push_dist_common (@files);
3995 # For now, acconfig.h can only appear in the top srcdir.
3996 if (-f 'acconfig.h')
3997 {
3998 push (@files, '$(top_srcdir)/acconfig.h');
3999 }
4001 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4002 $output_rules .=
4003 file_contents ('remake-hdr',
4004 new Automake::Location,
4005 FILES => "@files",
4006 CONFIG_H => $cn_sans_dir,
4007 CONFIG_HIN => $ins[0],
4008 CONFIG_H_DEPS => "@ins",
4009 CONFIG_H_PATH => $config_h_path,
4010 STAMP => "$stamp");
4012 push @distclean_config, $cn_sans_dir, $stamp;
4013 }
4014 }
4016 $output_rules .= file_contents ('clean-hdr',
4017 new Automake::Location,
4018 FILES => "@distclean_config")
4019 if @distclean_config;
4021 # Distribute and define mkinstalldirs only if it is already present
4022 # in the package, for backward compatibility (some people may still
4023 # use $(mkinstalldirs)).
4024 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4025 if (-f $mkidpath)
4026 {
4027 # Use require_file so that any existing script gets updated
4028 # by --force-missing.
4029 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4030 define_variable ('mkinstalldirs',
4031 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4032 }
4033 else
4034 {
4035 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4036 # at least one argument, and $(mkinstalldirs) used to work
4037 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4038 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4039 }
4041 reject_var ('CONFIG_HEADER',
4042 "`CONFIG_HEADER' is an anachronism; now determined "
4043 . "automatically\nfrom `$configure_ac'");
4045 my @config_h;
4046 foreach my $spec (@config_headers)
4047 {
4048 my ($out, @ins) = split_config_file_spec ($spec);
4049 # Generate CONFIG_HEADER define.
4050 if ($relative_dir eq dirname ($out))
4051 {
4052 push @config_h, basename ($out);
4053 }
4054 else
4055 {
4056 push @config_h, "\$(top_builddir)/$out";
4057 }
4058 }
4059 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4060 if @config_h;
4062 # Now look for other files in this directory which must be remade
4063 # by config.status, and generate rules for them.
4064 my @actual_other_files = ();
4065 foreach my $lfile (@other_input_files)
4066 {
4067 my $file;
4068 my @inputs;
4069 if ($lfile =~ /^([^:]*):(.*)$/)
4070 {
4071 # This is the ":" syntax of AC_OUTPUT.
4072 $file = $1;
4073 @inputs = split (':', $2);
4074 }
4075 else
4076 {
4077 # Normal usage.
4078 $file = $lfile;
4079 @inputs = $file . '.in';
4080 }
4082 # Automake files should not be stored in here, but in %MAKE_LIST.
4083 prog_error ("$lfile in \@other_input_files\n"
4084 . "\@other_input_files = (@other_input_files)")
4085 if -f $file . '.am';
4087 my $local = basename ($file);
4089 # We skip files that aren't in this directory. However, if
4090 # the file's directory does not have a Makefile, and we are
4091 # currently doing `.', then we create a rule to rebuild the
4092 # file in the subdir.
4093 my $fd = dirname ($file);
4094 if ($fd ne $relative_dir)
4095 {
4096 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4097 {
4098 $local = $file;
4099 }
4100 else
4101 {
4102 next;
4103 }
4104 }
4106 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4108 # Cannot output rules for shell variables.
4109 next if (substitute_ac_subst_variables $local) =~ /\$/;
4111 $output_rules .= ($local . ': '
4112 . '$(top_builddir)/config.status '
4113 . "@rewritten_inputs\n"
4114 . "\t"
4115 . 'cd $(top_builddir) && '
4116 . '$(SHELL) ./config.status '
4117 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4118 . '$@'
4119 . "\n");
4120 push (@actual_other_files, $local);
4121 }
4123 # For links we should clean destinations and distribute sources.
4124 foreach my $spec (@config_links)
4125 {
4126 my ($link, $file) = split /:/, $spec;
4127 # Some people do AC_CONFIG_LINKS($computed). We only handle
4128 # the DEST:SRC form.
4129 next unless $file;
4130 my $where = $ac_config_files_location{$link};
4132 # Skip destinations that contain shell variables.
4133 if ((substitute_ac_subst_variables $link) !~ /\$/)
4134 {
4135 # We skip links that aren't in this directory. However, if
4136 # the link's directory does not have a Makefile, and we are
4137 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4138 # in `.'s Makefile.in.
4139 my $local = basename ($link);
4140 my $fd = dirname ($link);
4141 if ($fd ne $relative_dir)
4142 {
4143 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4144 {
4145 $local = $link;
4146 }
4147 else
4148 {
4149 $local = undef;
4150 }
4151 }
4152 push @actual_other_files, $local if $local;
4153 }
4155 # Do not process sources that contain shell variables.
4156 if ((substitute_ac_subst_variables $file) !~ /\$/)
4157 {
4158 my $fd = dirname ($file);
4160 # We distribute files that are in this directory.
4161 # At the top-level (`.') we also distribute files whose
4162 # directory does not have a Makefile.
4163 if (($fd eq $relative_dir)
4164 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4165 {
4166 # The following will distribute $file as a side-effect when
4167 # it is appropriate (i.e., when $file is not already an output).
4168 # We do not need the result, just the side-effect.
4169 rewrite_inputs_into_dependencies ($link, $file);
4170 }
4171 }
4172 }
4174 # These files get removed by "make distclean".
4175 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4176 @actual_other_files);
4177 }
4179 # Handle C headers.
4180 sub handle_headers
4181 {
4182 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4183 'oldinclude', 'pkginclude',
4184 'noinst', 'check');
4185 foreach (@r)
4186 {
4187 next unless $_->[1] =~ /\..*$/;
4188 &saw_extension ($&);
4189 }
4190 }
4192 sub handle_gettext
4193 {
4194 return if ! $seen_gettext || $relative_dir ne '.';
4196 my $subdirs = var 'SUBDIRS';
4198 if (! $subdirs)
4199 {
4200 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4201 return;
4202 }
4204 # Perform some sanity checks to help users get the right setup.
4205 # We disable these tests when po/ doesn't exist in order not to disallow
4206 # unusual gettext setups.
4207 #
4208 # Bruno Haible:
4209 # | The idea is:
4210 # |
4211 # | 1) If a package doesn't have a directory po/ at top level, it
4212 # | will likely have multiple po/ directories in subpackages.
4213 # |
4214 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4215 # | is used without 'external'. It is also useful to warn for the
4216 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4217 # | warnings apply only to the usual layout of packages, therefore
4218 # | they should both be disabled if no po/ directory is found at
4219 # | top level.
4221 if (-d 'po')
4222 {
4223 my @subdirs = $subdirs->value_as_list_recursive;
4225 msg_var ('syntax', $subdirs,
4226 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4227 if ! grep ($_ eq 'po', @subdirs);
4229 # intl/ is not required when AM_GNU_GETTEXT is called with
4230 # the `external' option.
4231 msg_var ('syntax', $subdirs,
4232 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4233 if (! $seen_gettext_external
4234 && ! grep ($_ eq 'intl', @subdirs));
4236 # intl/ should not be used with AM_GNU_GETTEXT([external])
4237 msg_var ('syntax', $subdirs,
4238 "`intl' should not be in SUBDIRS when "
4239 . "AM_GNU_GETTEXT([external]) is used")
4240 if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
4241 }
4243 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4244 }
4246 # Handle footer elements.
4247 sub handle_footer
4248 {
4249 reject_rule ('.SUFFIXES',
4250 "use variable `SUFFIXES', not target `.SUFFIXES'");
4252 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4253 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4254 # anything else, by sticking it right after the default: target.
4255 $output_header .= ".SUFFIXES:\n";
4256 my $suffixes = var 'SUFFIXES';
4257 my @suffixes = Automake::Rule::suffixes;
4258 if (@suffixes || $suffixes)
4259 {
4260 # Make sure SUFFIXES has unique elements. Sort them to ensure
4261 # the output remains consistent. However, $(SUFFIXES) is
4262 # always at the start of the list, unsorted. This is done
4263 # because make will choose rules depending on the ordering of
4264 # suffixes, and this lets the user have some control. Push
4265 # actual suffixes, and not $(SUFFIXES). Some versions of make
4266 # do not like variable substitutions on the .SUFFIXES line.
4267 my @user_suffixes = ($suffixes
4268 ? $suffixes->value_as_list_recursive : ());
4270 my %suffixes = map { $_ => 1 } @suffixes;
4271 delete @suffixes{@user_suffixes};
4273 $output_header .= (".SUFFIXES: "
4274 . join (' ', @user_suffixes, sort keys %suffixes)
4275 . "\n");
4276 }
4278 $output_trailer .= file_contents ('footer', new Automake::Location);
4279 }
4282 # Generate `make install' rules.
4283 sub handle_install ()
4284 {
4285 $output_rules .= &file_contents
4286 ('install',
4287 new Automake::Location,
4288 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4289 ? (" \$(BUILT_SOURCES)\n"
4290 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4291 : ''),
4292 'installdirs-local' => (user_phony_rule 'installdirs-local'
4293 ? ' installdirs-local' : ''),
4294 am__installdirs => variable_value ('am__installdirs') || '');
4295 }
4298 # Deal with all and all-am.
4299 sub handle_all ($)
4300 {
4301 my ($makefile) = @_;
4303 # Output `all-am'.
4305 # Put this at the beginning for the sake of non-GNU makes. This
4306 # is still wrong if these makes can run parallel jobs. But it is
4307 # right enough.
4308 unshift (@all, basename ($makefile));
4310 foreach my $spec (@config_headers)
4311 {
4312 my ($out, @ins) = split_config_file_spec ($spec);
4313 push (@all, basename ($out))
4314 if dirname ($out) eq $relative_dir;
4315 }
4317 # Install `all' hooks.
4318 push (@all, "all-local")
4319 if user_phony_rule "all-local";
4321 &pretty_print_rule ("all-am:", "\t\t", @all);
4322 &depend ('.PHONY', 'all-am', 'all');
4325 # Output `all'.
4327 my @local_headers = ();
4328 push @local_headers, '$(BUILT_SOURCES)'
4329 if var ('BUILT_SOURCES');
4330 foreach my $spec (@config_headers)
4331 {
4332 my ($out, @ins) = split_config_file_spec ($spec);
4333 push @local_headers, basename ($out)
4334 if dirname ($out) eq $relative_dir;
4335 }
4337 if (@local_headers)
4338 {
4339 # We need to make sure config.h is built before we recurse.
4340 # We also want to make sure that built sources are built
4341 # before any ordinary `all' targets are run. We can't do this
4342 # by changing the order of dependencies to the "all" because
4343 # that breaks when using parallel makes. Instead we handle
4344 # things explicitly.
4345 $output_all .= ("all: @local_headers"
4346 . "\n\t"
4347 . '$(MAKE) $(AM_MAKEFLAGS) '
4348 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4349 . "\n\n");
4350 }
4351 else
4352 {
4353 $output_all .= "all: " . (var ('SUBDIRS')
4354 ? 'all-recursive' : 'all-am') . "\n\n";
4355 }
4356 }
4359 # &do_check_merge_target ()
4360 # -------------------------
4361 # Handle check merge target specially.
4362 sub do_check_merge_target ()
4363 {
4364 # Include user-defined local form of target.
4365 push @check_tests, 'check-local'
4366 if user_phony_rule 'check-local';
4368 # In --cygnus mode, check doesn't depend on all.
4369 if (option 'cygnus')
4370 {
4371 # Just run the local check rules.
4372 pretty_print_rule ('check-am:', "\t\t", @check);
4373 }
4374 else
4375 {
4376 # The check target must depend on the local equivalent of
4377 # `all', to ensure all the primary targets are built. Then it
4378 # must build the local check rules.
4379 $output_rules .= "check-am: all-am\n";
4380 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4381 @check)
4382 if @check;
4383 }
4384 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4385 @check_tests)
4386 if @check_tests;
4388 depend '.PHONY', 'check', 'check-am';
4389 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4390 $output_rules .= ("check: "
4391 . (var ('BUILT_SOURCES')
4392 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4393 : '')
4394 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4395 . "\n");
4396 }
4398 # handle_clean ($MAKEFILE)
4399 # ------------------------
4400 # Handle all 'clean' targets.
4401 sub handle_clean ($)
4402 {
4403 my ($makefile) = @_;
4405 # Clean the files listed in user variables if they exist.
4406 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4407 if var ('MOSTLYCLEANFILES');
4408 $clean_files{'$(CLEANFILES)'} = CLEAN
4409 if var ('CLEANFILES');
4410 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4411 if var ('DISTCLEANFILES');
4412 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4413 if var ('MAINTAINERCLEANFILES');
4415 # Built sources are automatically removed by maintainer-clean.
4416 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4417 if var ('BUILT_SOURCES');
4419 # Compute a list of "rm"s to run for each target.
4420 my %rms = (MOSTLY_CLEAN, [],
4421 CLEAN, [],
4422 DIST_CLEAN, [],
4423 MAINTAINER_CLEAN, []);
4425 foreach my $file (keys %clean_files)
4426 {
4427 my $when = $clean_files{$file};
4428 prog_error 'invalid entry in %clean_files'
4429 unless exists $rms{$when};
4431 my $rm = "rm -f $file";
4432 # If file is a variable, make sure when don't call `rm -f' without args.
4433 $rm ="test -z \"$file\" || $rm"
4434 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4436 push @{$rms{$when}}, "\t-$rm\n";
4437 }
4439 $output_rules .= &file_contents
4440 ('clean',
4441 new Automake::Location,
4442 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4443 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4444 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4445 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4446 MAKEFILE => basename $makefile,
4447 );
4448 }
4451 # &target_cmp ($A, $B)
4452 # --------------------
4453 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4454 # other `.TARGETS' be last.
4455 sub target_cmp
4456 {
4457 return 0 if $a eq $b;
4459 my $a1 = substr ($a, 0, 1);
4460 my $b1 = substr ($b, 0, 1);
4461 if ($a1 ne $b1)
4462 {
4463 return -1 if $b1 eq '.';
4464 return 1 if $a1 eq '.';
4465 }
4466 return $a cmp $b;
4467 }
4470 # &handle_factored_dependencies ()
4471 # --------------------------------
4472 # Handle everything related to gathered targets.
4473 sub handle_factored_dependencies
4474 {
4475 # Reject bad hooks.
4476 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4477 'uninstall-exec-local', 'uninstall-exec-hook',
4478 'uninstall-dvi-local',
4479 'uninstall-html-local',
4480 'uninstall-info-local',
4481 'uninstall-pdf-local',
4482 'uninstall-ps-local')
4483 {
4484 my $x = $utarg;
4485 $x =~ s/-.*-/-/;
4486 reject_rule ($utarg, "use `$x', not `$utarg'");
4487 }
4489 reject_rule ('install-local',
4490 "use `install-data-local' or `install-exec-local', "
4491 . "not `install-local'");
4493 reject_rule ('install-hook',
4494 "use `install-data-hook' or `install-exec-hook', "
4495 . "not `install-hook'");
4497 # Install the -local hooks.
4498 foreach (keys %dependencies)
4499 {
4500 # Hooks are installed on the -am targets.
4501 s/-am$// or next;
4502 depend ("$_-am", "$_-local")
4503 if user_phony_rule "$_-local";
4504 }
4506 # Install the -hook hooks.
4507 # FIXME: Why not be as liberal as we are with -local hooks?
4508 foreach ('install-exec', 'install-data', 'uninstall')
4509 {
4510 if (user_phony_rule "$_-hook")
4511 {
4512 $actions{"$_-am"} .=
4513 ("\t\@\$(NORMAL_INSTALL)\n"
4514 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4515 depend ('.MAKE', "$_-am");
4516 }
4517 }
4519 # All the required targets are phony.
4520 depend ('.PHONY', keys %required_targets);
4522 # Actually output gathered targets.
4523 foreach (sort target_cmp keys %dependencies)
4524 {
4525 # If there is nothing about this guy, skip it.
4526 next
4527 unless (@{$dependencies{$_}}
4528 || $actions{$_}
4529 || $required_targets{$_});
4531 # Define gathered targets in undefined conditions.
4532 # FIXME: Right now we must handle .PHONY as an exception,
4533 # because people write things like
4534 # .PHONY: myphonytarget
4535 # to append dependencies. This would not work if Automake
4536 # refrained from defining its own .PHONY target as it does
4537 # with other overridden targets.
4538 # Likewise for `.MAKE'.
4539 my @undefined_conds = (TRUE,);
4540 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4541 {
4542 @undefined_conds =
4543 Automake::Rule::define ($_, 'internal',
4544 RULE_AUTOMAKE, TRUE, INTERNAL);
4545 }
4546 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4547 foreach my $cond (@undefined_conds)
4548 {
4549 my $condstr = $cond->subst_string;
4550 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4551 $output_rules .= $actions{$_} if defined $actions{$_};
4552 $output_rules .= "\n";
4553 }
4554 }
4555 }
4558 # &handle_tests_dejagnu ()
4559 # ------------------------
4560 sub handle_tests_dejagnu
4561 {
4562 push (@check_tests, 'check-DEJAGNU');
4563 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4564 }
4567 # Handle TESTS variable and other checks.
4568 sub handle_tests
4569 {
4570 if (option 'dejagnu')
4571 {
4572 &handle_tests_dejagnu;
4573 }
4574 else
4575 {
4576 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4577 {
4578 reject_var ($c, "`$c' defined but `dejagnu' not in "
4579 . "`AUTOMAKE_OPTIONS'");
4580 }
4581 }
4583 if (var ('TESTS'))
4584 {
4585 push (@check_tests, 'check-TESTS');
4586 $output_rules .= &file_contents ('check', new Automake::Location);
4588 # Tests that are known programs should have $(EXEEXT) appended.
4589 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4590 }
4591 }
4593 # Handle Emacs Lisp.
4594 sub handle_emacs_lisp
4595 {
4596 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4597 'lisp', 'noinst');
4599 return if ! @elfiles;
4601 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4602 map { $_->[1] } @elfiles);
4603 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4604 '$(am__ELFILES:.el=.elc)');
4605 # This one can be overridden by users.
4606 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4608 push @all, '$(ELCFILES)';
4610 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4611 'EMACS', 'lispdir');
4612 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4613 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4614 }
4616 # Handle Python
4617 sub handle_python
4618 {
4619 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4620 'noinst');
4621 return if ! @pyfiles;
4623 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4624 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4625 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4626 }
4628 # Handle Java.
4629 sub handle_java
4630 {
4631 my @sourcelist = &am_install_var ('-candist',
4632 'java', 'JAVA',
4633 'java', 'noinst', 'check');
4634 return if ! @sourcelist;
4636 my @prefix = am_primary_prefixes ('JAVA', 1,
4637 'java', 'noinst', 'check');
4639 my $dir;
4640 foreach my $curs (@prefix)
4641 {
4642 next
4643 if $curs eq 'EXTRA';
4645 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4646 if defined $dir;
4647 $dir = $curs;
4648 }
4651 push (@all, 'class' . $dir . '.stamp');
4652 }
4655 # Handle some of the minor options.
4656 sub handle_minor_options
4657 {
4658 if (option 'readme-alpha')
4659 {
4660 if ($relative_dir eq '.')
4661 {
4662 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4663 {
4664 msg ('error-gnits', $package_version_location,
4665 "version `$package_version' doesn't follow " .
4666 "Gnits standards");
4667 }
4668 if (defined $1 && -f 'README-alpha')
4669 {
4670 # This means we have an alpha release. See
4671 # GNITS_VERSION_PATTERN for details.
4672 push_dist_common ('README-alpha');
4673 }
4674 }
4675 }
4676 }
4678 ################################################################
4680 # ($OUTPUT, @INPUTS)
4681 # &split_config_file_spec ($SPEC)
4682 # -------------------------------
4683 # Decode the Autoconf syntax for config files (files, headers, links
4684 # etc.).
4685 sub split_config_file_spec ($)
4686 {
4687 my ($spec) = @_;
4688 my ($output, @inputs) = split (/:/, $spec);
4690 push @inputs, "$output.in"
4691 unless @inputs;
4693 return ($output, @inputs);
4694 }
4696 # $input
4697 # locate_am (@POSSIBLE_SOURCES)
4698 # -----------------------------
4699 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4700 # This functions returns the first *.in file for which a *.am exists.
4701 # It returns undef otherwise.
4702 sub locate_am (@)
4703 {
4704 my (@rest) = @_;
4705 my $input;
4706 foreach my $file (@rest)
4707 {
4708 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4709 {
4710 $input = $file;
4711 last;
4712 }
4713 }
4714 return $input;
4715 }
4717 my %make_list;
4719 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4720 # ---------------------------------------------------
4721 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4722 # (or AC_OUTPUT).
4723 sub scan_autoconf_config_files ($$)
4724 {
4725 my ($where, $config_files) = @_;
4727 # Look at potential Makefile.am's.
4728 foreach (split ' ', $config_files)
4729 {
4730 # Must skip empty string for Perl 4.
4731 next if $_ eq "\\" || $_ eq '';
4733 # Handle $local:$input syntax.
4734 my ($local, @rest) = split (/:/);
4735 @rest = ("$local.in",) unless @rest;
4736 my $input = locate_am @rest;
4737 if ($input)
4738 {
4739 # We have a file that automake should generate.
4740 $make_list{$input} = join (':', ($local, @rest));
4741 }
4742 else
4743 {
4744 # We have a file that automake should cause to be
4745 # rebuilt, but shouldn't generate itself.
4746 push (@other_input_files, $_);
4747 }
4748 $ac_config_files_location{$local} = $where;
4749 }
4750 }
4753 # &scan_autoconf_traces ($FILENAME)
4754 # ---------------------------------
4755 sub scan_autoconf_traces ($)
4756 {
4757 my ($filename) = @_;
4759 # Macros to trace, with their minimal number of arguments.
4760 #
4761 # IMPORTANT: If you add a macro here, you should also add this macro
4762 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
4763 my %traced = (
4764 AC_CANONICAL_BUILD => 0,
4765 AC_CANONICAL_HOST => 0,
4766 AC_CANONICAL_TARGET => 0,
4767 AC_CONFIG_AUX_DIR => 1,
4768 AC_CONFIG_FILES => 1,
4769 AC_CONFIG_HEADERS => 1,
4770 AC_CONFIG_LIBOBJ_DIR => 1,
4771 AC_CONFIG_LINKS => 1,
4772 AC_INIT => 0,
4773 AC_LIBSOURCE => 1,
4774 AC_REQUIRE_AUX_FILE => 1,
4775 AC_SUBST_TRACE => 1,
4776 AM_AUTOMAKE_VERSION => 1,
4777 AM_CONDITIONAL => 2,
4778 AM_ENABLE_MULTILIB => 0,
4779 AM_GNU_GETTEXT => 0,
4780 AM_INIT_AUTOMAKE => 0,
4781 AM_MAINTAINER_MODE => 0,
4782 AM_PROG_CC_C_O => 0,
4783 _AM_SUBST_NOTMAKE => 1,
4784 LT_SUPPORTED_TAG => 1,
4785 _LT_AC_TAGCONFIG => 0,
4786 m4_include => 1,
4787 m4_sinclude => 1,
4788 sinclude => 1,
4789 );
4791 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4793 # Use a separator unlikely to be used, not `:', the default, which
4794 # has a precise meaning for AC_CONFIG_FILES and so on.
4795 $traces .= join (' ',
4796 map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
4797 (keys %traced));
4799 my $tracefh = new Automake::XFile ("$traces $filename |");
4800 verb "reading $traces";
4802 while ($_ = $tracefh->getline)
4803 {
4804 chomp;
4805 my ($here, @args) = split (/::/);
4806 my $where = new Automake::Location $here;
4807 my $macro = $args[0];
4809 prog_error ("unrequested trace `$macro'")
4810 unless exists $traced{$macro};
4812 # Skip and diagnose malformed calls.
4813 if ($#args < $traced{$macro})
4814 {
4815 msg ('syntax', $where, "not enough arguments for $macro");
4816 next;
4817 }
4819 # Alphabetical ordering please.
4820 if ($macro eq 'AC_CANONICAL_BUILD')
4821 {
4822 if ($seen_canonical <= AC_CANONICAL_BUILD)
4823 {
4824 $seen_canonical = AC_CANONICAL_BUILD;
4825 $canonical_location = $where;
4826 }
4827 }
4828 elsif ($macro eq 'AC_CANONICAL_HOST')
4829 {
4830 if ($seen_canonical <= AC_CANONICAL_HOST)
4831 {
4832 $seen_canonical = AC_CANONICAL_HOST;
4833 $canonical_location = $where;
4834 }
4835 }
4836 elsif ($macro eq 'AC_CANONICAL_TARGET')
4837 {
4838 $seen_canonical = AC_CANONICAL_TARGET;
4839 $canonical_location = $where;
4840 }
4841 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4842 {
4843 if ($seen_init_automake)
4844 {
4845 error ($where, "AC_CONFIG_AUX_DIR must be called before "
4846 . "AM_INIT_AUTOMAKE...", partial => 1);
4847 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
4848 }
4849 $config_aux_dir = $args[1];
4850 $config_aux_dir_set_in_configure_ac = 1;
4851 $relative_dir = '.';
4852 check_directory ($config_aux_dir, $where);
4853 }
4854 elsif ($macro eq 'AC_CONFIG_FILES')
4855 {
4856 # Look at potential Makefile.am's.
4857 scan_autoconf_config_files ($where, $args[1]);
4858 }
4859 elsif ($macro eq 'AC_CONFIG_HEADERS')
4860 {
4861 foreach my $spec (split (' ', $args[1]))
4862 {
4863 my ($dest, @src) = split (':', $spec);
4864 $ac_config_files_location{$dest} = $where;
4865 push @config_headers, $spec;
4866 }
4867 }
4868 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
4869 {
4870 $config_libobj_dir = $args[1];
4871 $relative_dir = '.';
4872 check_directory ($config_libobj_dir, $where);
4873 }
4874 elsif ($macro eq 'AC_CONFIG_LINKS')
4875 {
4876 foreach my $spec (split (' ', $args[1]))
4877 {
4878 my ($dest, $src) = split (':', $spec);
4879 $ac_config_files_location{$dest} = $where;
4880 push @config_links, $spec;
4881 }
4882 }
4883 elsif ($macro eq 'AC_INIT')
4884 {
4885 if (defined $args[2])
4886 {
4887 $package_version = $args[2];
4888 $package_version_location = $where;
4889 }
4890 }
4891 elsif ($macro eq 'AC_LIBSOURCE')
4892 {
4893 $libsources{$args[1]} = $here;
4894 }
4895 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
4896 {
4897 # Only remember the first time a file is required.
4898 $required_aux_file{$args[1]} = $where
4899 unless exists $required_aux_file{$args[1]};
4900 }
4901 elsif ($macro eq 'AC_SUBST_TRACE')
4902 {
4903 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
4904 # AC_SUBST(5), then too bad.
4905 $configure_vars{$args[1]} = $where
4906 if $args[1] =~ /^\w+$/;
4907 }
4908 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
4909 {
4910 error ($where,
4911 "version mismatch. This is Automake $VERSION,\n" .
4912 "but the definition used by this AM_INIT_AUTOMAKE\n" .
4913 "comes from Automake $args[1]. You should recreate\n" .
4914 "aclocal.m4 with aclocal and run automake again.\n",
4915 # $? = 63 is used to indicate version mismatch to missing.
4916 exit_code => 63)
4917 if $VERSION ne $args[1];
4919 $seen_automake_version = 1;
4920 }
4921 elsif ($macro eq 'AM_CONDITIONAL')
4922 {
4923 $configure_cond{$args[1]} = $where;
4924 }
4925 elsif ($macro eq 'AM_ENABLE_MULTILIB')
4926 {
4927 $seen_multilib = $where;
4928 }
4929 elsif ($macro eq 'AM_GNU_GETTEXT')
4930 {
4931 $seen_gettext = $where;
4932 $ac_gettext_location = $where;
4933 $seen_gettext_external = grep ($_ eq 'external', @args);
4934 }
4935 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4936 {
4937 $seen_init_automake = $where;
4938 if (defined $args[2])
4939 {
4940 $package_version = $args[2];
4941 $package_version_location = $where;
4942 }
4943 elsif (defined $args[1])
4944 {
4945 exit $exit_code
4946 if (process_global_option_list ($where,
4947 split (' ', $args[1])));
4948 }
4949 }
4950 elsif ($macro eq 'AM_MAINTAINER_MODE')
4951 {
4952 $seen_maint_mode = $where;
4953 }
4954 elsif ($macro eq 'AM_PROG_CC_C_O')
4955 {
4956 $seen_cc_c_o = $where;
4957 }
4958 elsif ($macro eq '_AM_SUBST_NOTMAKE')
4959 {
4960 $ignored_configure_vars{$args[1]} = $where;
4961 }
4962 elsif ($macro eq 'm4_include'
4963 || $macro eq 'm4_sinclude'
4964 || $macro eq 'sinclude')
4965 {
4966 # Skip missing `sinclude'd files.
4967 next if $macro ne 'm4_include' && ! -f $args[1];
4969 # Some modified versions of Autoconf don't use
4970 # forzen files. Consequently it's possible that we see all
4971 # m4_include's performed during Autoconf's startup.
4972 # Obviously we don't want to distribute Autoconf's files
4973 # so we skip absolute filenames here.
4974 push @configure_deps, '$(top_srcdir)/' . $args[1]
4975 unless $here =~ m,^(?:\w:)?[\\/],;
4976 # Keep track of the greatest timestamp.
4977 if (-e $args[1])
4978 {
4979 my $mtime = mtime $args[1];
4980 $configure_deps_greatest_timestamp = $mtime
4981 if $mtime > $configure_deps_greatest_timestamp;
4982 }
4983 }
4984 elsif ($macro eq 'LT_SUPPORTED_TAG')
4985 {
4986 $libtool_tags{$args[1]} = 1;
4987 $libtool_new_api = 1;
4988 }
4989 elsif ($macro eq '_LT_AC_TAGCONFIG')
4990 {
4991 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
4992 # We use it to detect whether tags are supported. Our
4993 # prefered interface is LT_SUPPORTED_TAG, but it was
4994 # introduced in Libtool 1.6.
4995 if (0 == keys %libtool_tags)
4996 {
4997 # Hardcode the tags supported by Libtool 1.5.
4998 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
4999 }
5000 }
5001 }
5003 $tracefh->close;
5004 }
5007 # &scan_autoconf_files ()
5008 # -----------------------
5009 # Check whether we use `configure.ac' or `configure.in'.
5010 # Scan it (and possibly `aclocal.m4') for interesting things.
5011 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5012 sub scan_autoconf_files ()
5013 {
5014 # Reinitialize libsources here. This isn't really necessary,
5015 # since we currently assume there is only one configure.ac. But
5016 # that won't always be the case.
5017 %libsources = ();
5019 # Keep track of the youngest configure dependency.
5020 $configure_deps_greatest_timestamp = mtime $configure_ac;
5021 if (-e 'aclocal.m4')
5022 {
5023 my $mtime = mtime 'aclocal.m4';
5024 $configure_deps_greatest_timestamp = $mtime
5025 if $mtime > $configure_deps_greatest_timestamp;
5026 }
5028 scan_autoconf_traces ($configure_ac);
5030 @configure_input_files = sort keys %make_list;
5031 # Set input and output files if not specified by user.
5032 if (! @input_files)
5033 {
5034 @input_files = @configure_input_files;
5035 %output_files = %make_list;
5036 }
5039 if (! $seen_init_automake)
5040 {
5041 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5042 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5043 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5044 . "and that aclocal.m4 was recently regenerated "
5045 . "(using aclocal).");
5046 }
5047 else
5048 {
5049 if (! $seen_automake_version)
5050 {
5051 if (-f 'aclocal.m4')
5052 {
5053 error ($seen_init_automake,
5054 "your implementation of AM_INIT_AUTOMAKE comes from " .
5055 "an\nold Automake version. You should recreate " .
5056 "aclocal.m4\nwith aclocal and run automake again.\n",
5057 # $? = 63 is used to indicate version mismatch to missing.
5058 exit_code => 63);
5059 }
5060 else
5061 {
5062 error ($seen_init_automake,
5063 "no proper implementation of AM_INIT_AUTOMAKE was " .
5064 "found,\nprobably because aclocal.m4 is missing...\n" .
5065 "You should run aclocal to create this file, then\n" .
5066 "run automake again.\n");
5067 }
5068 }
5069 }
5071 locate_aux_dir ();
5073 # Reorder @input_files so that the Makefile that distributes aux
5074 # files is processed last. This is important because each directory
5075 # can require auxiliary scripts and we should wait until they have
5076 # been installed before distributing them.
5078 # The Makefile.in that distribute the aux files is the one in
5079 # $config_aux_dir or the top-level Makefile.
5080 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5081 my @new_input_files = ();
5082 while (@input_files)
5083 {
5084 my $in = pop @input_files;
5085 my @ins = split (/:/, $output_files{$in});
5086 if (dirname ($ins[0]) eq $auxdirdist)
5087 {
5088 push @new_input_files, $in;
5089 $automake_will_process_aux_dir = 1;
5090 }
5091 else
5092 {
5093 unshift @new_input_files, $in;
5094 }
5095 }
5096 @input_files = @new_input_files;
5098 # If neither the auxdir/Makefile nor the ./Makefile are generated
5099 # by Automake, we won't distribute the aux files anyway. Assume
5100 # the user know what (s)he does, and pretend we will distribute
5101 # them to disable the error in require_file_internal.
5102 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5104 # Look for some files we need. Always check for these. This
5105 # check must be done for every run, even those where we are only
5106 # looking at a subdir Makefile. We must set relative_dir for
5107 # maybe_push_required_file to work.
5108 $relative_dir = '.';
5109 foreach my $file (keys %required_aux_file)
5110 {
5111 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5112 }
5113 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5114 if -f $config_aux_dir . '/install.sh';
5116 # Preserve dist_common for later.
5117 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5119 }
5121 ################################################################
5123 # Set up for Cygnus mode.
5124 sub check_cygnus
5125 {
5126 my $cygnus = option 'cygnus';
5127 return unless $cygnus;
5129 set_strictness ('foreign');
5130 set_option ('no-installinfo', $cygnus);
5131 set_option ('no-dependencies', $cygnus);
5132 set_option ('no-dist', $cygnus);
5134 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5135 if !$seen_maint_mode;
5136 }
5138 # Do any extra checking for GNU standards.
5139 sub check_gnu_standards
5140 {
5141 if ($relative_dir eq '.')
5142 {
5143 # In top level (or only) directory.
5144 require_file ("$am_file.am", GNU,
5145 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5147 # Accept one of these three licenses; default to COPYING.
5148 # Make sure we do not overwrite an existing license.
5149 my $license;
5150 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5151 {
5152 if (-f $_)
5153 {
5154 $license = $_;
5155 last;
5156 }
5157 }
5158 require_file ("$am_file.am", GNU, 'COPYING')
5159 unless $license;
5160 }
5162 for my $opt ('no-installman', 'no-installinfo')
5163 {
5164 msg ('error-gnu', option $opt,
5165 "option `$opt' disallowed by GNU standards")
5166 if option $opt;
5167 }
5168 }
5170 # Do any extra checking for GNITS standards.
5171 sub check_gnits_standards
5172 {
5173 if ($relative_dir eq '.')
5174 {
5175 # In top level (or only) directory.
5176 require_file ("$am_file.am", GNITS, 'THANKS');
5177 }
5178 }
5180 ################################################################
5181 #
5182 # Functions to handle files of each language.
5184 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5185 # simple formula: Return value is LANG_SUBDIR if the resulting object
5186 # file should be in a subdir if the source file is, LANG_PROCESS if
5187 # file is to be dealt with, LANG_IGNORE otherwise.
5189 # Much of the actual processing is handled in
5190 # handle_single_transform. These functions exist so that
5191 # auxiliary information can be recorded for a later cleanup pass.
5192 # Note that the calls to these functions are computed, so don't bother
5193 # searching for their precise names in the source.
5195 # This is just a convenience function that can be used to determine
5196 # when a subdir object should be used.
5197 sub lang_sub_obj
5198 {
5199 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5200 }
5202 # Rewrite a single C source file.
5203 sub lang_c_rewrite
5204 {
5205 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5207 if (option 'ansi2knr' && $base =~ /_$/)
5208 {
5209 # FIXME: include line number in error.
5210 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5211 }
5213 my $r = LANG_PROCESS;
5214 if (option 'subdir-objects')
5215 {
5216 $r = LANG_SUBDIR;
5217 if ($directory && $directory ne '.')
5218 {
5219 $base = $directory . '/' . $base;
5221 # libtool is always able to put the object at the proper place,
5222 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5223 msg_var ('portability', $var,
5224 "compiling `$base.c' in subdir requires "
5225 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5226 uniq_scope => US_GLOBAL,
5227 uniq_part => 'AM_PROG_CC_C_O subdir')
5228 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5229 }
5231 # In this case we already have the directory information, so
5232 # don't add it again.
5233 $de_ansi_files{$base} = '';
5234 }
5235 else
5236 {
5237 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5238 ? ''
5239 : "$directory/");
5240 }
5242 if (! $seen_cc_c_o
5243 && $have_per_exec_flags
5244 && ! option 'subdir-objects'
5245 && $nonansi_obj ne '.lo')
5246 {
5247 msg_var ('portability',
5248 $var, "compiling `$base.c' with per-target flags requires "
5249 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5250 uniq_scope => US_GLOBAL,
5251 uniq_part => 'AM_PROG_CC_C_O per-target')
5252 }
5254 return $r;
5255 }
5257 # Rewrite a single C++ source file.
5258 sub lang_cxx_rewrite
5259 {
5260 return &lang_sub_obj;
5261 }
5263 # Rewrite a single header file.
5264 sub lang_header_rewrite
5265 {
5266 # Header files are simply ignored.
5267 return LANG_IGNORE;
5268 }
5270 # Rewrite a single yacc file.
5271 sub lang_yacc_rewrite
5272 {
5273 my ($directory, $base, $ext) = @_;
5275 my $r = &lang_sub_obj;
5276 (my $newext = $ext) =~ tr/y/c/;
5277 return ($r, $newext);
5278 }
5280 # Rewrite a single yacc++ file.
5281 sub lang_yaccxx_rewrite
5282 {
5283 my ($directory, $base, $ext) = @_;
5285 my $r = &lang_sub_obj;
5286 (my $newext = $ext) =~ tr/y/c/;
5287 return ($r, $newext);
5288 }
5290 # Rewrite a single lex file.
5291 sub lang_lex_rewrite
5292 {
5293 my ($directory, $base, $ext) = @_;
5295 my $r = &lang_sub_obj;
5296 (my $newext = $ext) =~ tr/l/c/;
5297 return ($r, $newext);
5298 }
5300 # Rewrite a single lex++ file.
5301 sub lang_lexxx_rewrite
5302 {
5303 my ($directory, $base, $ext) = @_;
5305 my $r = &lang_sub_obj;
5306 (my $newext = $ext) =~ tr/l/c/;
5307 return ($r, $newext);
5308 }
5310 # Rewrite a single assembly file.
5311 sub lang_asm_rewrite
5312 {
5313 return &lang_sub_obj;
5314 }
5316 # Rewrite a single preprocessed assembly file.
5317 sub lang_cppasm_rewrite
5318 {
5319 return &lang_sub_obj;
5320 }
5322 # Rewrite a single Fortran 77 file.
5323 sub lang_f77_rewrite
5324 {
5325 return LANG_PROCESS;
5326 }
5328 # Rewrite a single Fortran file.
5329 sub lang_fc_rewrite
5330 {
5331 return LANG_PROCESS;
5332 }
5334 # Rewrite a single preprocessed Fortran file.
5335 sub lang_ppfc_rewrite
5336 {
5337 return LANG_PROCESS;
5338 }
5340 # Rewrite a single preprocessed Fortran 77 file.
5341 sub lang_ppf77_rewrite
5342 {
5343 return LANG_PROCESS;
5344 }
5346 # Rewrite a single ratfor file.
5347 sub lang_ratfor_rewrite
5348 {
5349 return LANG_PROCESS;
5350 }
5352 # Rewrite a single Objective C file.
5353 sub lang_objc_rewrite
5354 {
5355 return &lang_sub_obj;
5356 }
5358 # Rewrite a single Unified Parallel C file.
5359 sub lang_upc_rewrite
5360 {
5361 return &lang_sub_obj;
5362 }
5364 # Rewrite a single Java file.
5365 sub lang_java_rewrite
5366 {
5367 return LANG_SUBDIR;
5368 }
5370 # The lang_X_finish functions are called after all source file
5371 # processing is done. Each should handle defining rules for the
5372 # language, etc. A finish function is only called if a source file of
5373 # the appropriate type has been seen.
5375 sub lang_c_finish
5376 {
5377 # Push all libobjs files onto de_ansi_files. We actually only
5378 # push files which exist in the current directory, and which are
5379 # genuine source files.
5380 foreach my $file (keys %libsources)
5381 {
5382 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5383 {
5384 $de_ansi_files{$1} = ''
5385 }
5386 }
5388 if (option 'ansi2knr' && keys %de_ansi_files)
5389 {
5390 # Make all _.c files depend on their corresponding .c files.
5391 my @objects;
5392 foreach my $base (sort keys %de_ansi_files)
5393 {
5394 # Each _.c file must depend on ansi2knr; otherwise it
5395 # might be used in a parallel build before it is built.
5396 # We need to support files in the srcdir and in the build
5397 # dir (because these files might be auto-generated. But
5398 # we can't use $< -- some makes only define $< during a
5399 # suffix rule.
5400 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5401 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5402 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5403 . '`if test -f $(srcdir)/' . $ansfile
5404 . '; then echo $(srcdir)/' . $ansfile
5405 . '; else echo ' . $ansfile . '; fi` '
5406 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5407 . '| $(ANSI2KNR) > $@'
5408 # If ansi2knr fails then we shouldn't
5409 # create the _.c file
5410 . " || rm -f \$\@\n");
5411 push (@objects, $base . '_.$(OBJEXT)');
5412 push (@objects, $base . '_.lo')
5413 if var ('LIBTOOL');
5415 # Explicitly clean the _.c files if they are in a
5416 # subdirectory. (In the current directory they get erased
5417 # by a `rm -f *_.c' rule.)
5418 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5419 if dirname ($base) ne '.';
5420 }
5422 # Make all _.o (and _.lo) files depend on ansi2knr.
5423 # Use a sneaky little hack to make it print nicely.
5424 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5425 }
5426 }
5428 # This is a yacc helper which is called whenever we have decided to
5429 # compile a yacc file.
5430 sub lang_yacc_target_hook
5431 {
5432 my ($self, $aggregate, $output, $input, %transform) = @_;
5434 my $flag = $aggregate . "_YFLAGS";
5435 my $flagvar = var $flag;
5436 my $YFLAGSvar = var 'YFLAGS';
5437 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5438 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5439 {
5440 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5441 my $header = $output_base . '.h';
5443 # Found a `-d' that applies to the compilation of this file.
5444 # Add a dependency for the generated header file, and arrange
5445 # for that file to be included in the distribution.
5446 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5447 RULE_AUTOMAKE, TRUE,
5448 INTERNAL))
5449 {
5450 my $condstr = $cond->subst_string;
5451 $output_rules .=
5452 "$condstr${header}: $output\n"
5453 # Recover from removal of $header
5454 . "$condstr\t\@if test ! -f \$@; then \\\n"
5455 . "$condstr\t rm -f $output; \\\n"
5456 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
5457 . "$condstr\telse :; fi\n";
5458 }
5459 # Distribute the generated file, unless its .y source was
5460 # listed in a nodist_ variable. (&handle_source_transform
5461 # will set DIST_SOURCE.)
5462 &push_dist_common ($header)
5463 if $transform{'DIST_SOURCE'};
5465 # If the files are built in the build directory, then we want
5466 # to remove them with `make clean'. If they are in srcdir
5467 # they shouldn't be touched. However, we can't determine this
5468 # statically, and the GNU rules say that yacc/lex output files
5469 # should be removed by maintainer-clean. So that's what we
5470 # do.
5471 $clean_files{$header} = MAINTAINER_CLEAN;
5472 }
5473 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5474 # See the comment above for $HEADER.
5475 $clean_files{$output} = MAINTAINER_CLEAN;
5476 }
5478 # This is a lex helper which is called whenever we have decided to
5479 # compile a lex file.
5480 sub lang_lex_target_hook
5481 {
5482 my ($self, $aggregate, $output, $input) = @_;
5483 # If the files are built in the build directory, then we want to
5484 # remove them with `make clean'. If they are in srcdir they
5485 # shouldn't be touched. However, we can't determine this
5486 # statically, and the GNU rules say that yacc/lex output files
5487 # should be removed by maintainer-clean. So that's what we do.
5488 $clean_files{$output} = MAINTAINER_CLEAN;
5489 }
5491 # This is a helper for both lex and yacc.
5492 sub yacc_lex_finish_helper
5493 {
5494 return if defined $language_scratch{'lex-yacc-done'};
5495 $language_scratch{'lex-yacc-done'} = 1;
5497 # FIXME: for now, no line number.
5498 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5499 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5500 }
5502 sub lang_yacc_finish
5503 {
5504 return if defined $language_scratch{'yacc-done'};
5505 $language_scratch{'yacc-done'} = 1;
5507 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5509 yacc_lex_finish_helper;
5510 }
5513 sub lang_lex_finish
5514 {
5515 return if defined $language_scratch{'lex-done'};
5516 $language_scratch{'lex-done'} = 1;
5518 yacc_lex_finish_helper;
5519 }
5522 # Given a hash table of linker names, pick the name that has the most
5523 # precedence. This is lame, but something has to have global
5524 # knowledge in order to eliminate the conflict. Add more linkers as
5525 # required.
5526 sub resolve_linker
5527 {
5528 my (%linkers) = @_;
5530 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5531 {
5532 return $l if defined $linkers{$l};
5533 }
5534 return 'LINK';
5535 }
5537 # Called to indicate that an extension was used.
5538 sub saw_extension
5539 {
5540 my ($ext) = @_;
5541 if (! defined $extension_seen{$ext})
5542 {
5543 $extension_seen{$ext} = 1;
5544 }
5545 else
5546 {
5547 ++$extension_seen{$ext};
5548 }
5549 }
5551 # Return the number of files seen for a given language. Knows about
5552 # special cases we care about. FIXME: this is hideous. We need
5553 # something that involves real language objects. For instance yacc
5554 # and yaccxx could both derive from a common yacc class which would
5555 # know about the strange ylwrap requirement. (Or better yet we could
5556 # just not support legacy yacc!)
5557 sub count_files_for_language
5558 {
5559 my ($name) = @_;
5561 my @names;
5562 if ($name eq 'yacc' || $name eq 'yaccxx')
5563 {
5564 @names = ('yacc', 'yaccxx');
5565 }
5566 elsif ($name eq 'lex' || $name eq 'lexxx')
5567 {
5568 @names = ('lex', 'lexxx');
5569 }
5570 else
5571 {
5572 @names = ($name);
5573 }
5575 my $r = 0;
5576 foreach $name (@names)
5577 {
5578 my $lang = $languages{$name};
5579 foreach my $ext (@{$lang->extensions})
5580 {
5581 $r += $extension_seen{$ext}
5582 if defined $extension_seen{$ext};
5583 }
5584 }
5586 return $r
5587 }
5589 # Called to ask whether source files have been seen . If HEADERS is 1,
5590 # headers can be included.
5591 sub saw_sources_p
5592 {
5593 my ($headers) = @_;
5595 # count all the sources
5596 my $count = 0;
5597 foreach my $val (values %extension_seen)
5598 {
5599 $count += $val;
5600 }
5602 if (!$headers)
5603 {
5604 $count -= count_files_for_language ('header');
5605 }
5607 return $count > 0;
5608 }
5611 # register_language (%ATTRIBUTE)
5612 # ------------------------------
5613 # Register a single language.
5614 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5615 sub register_language (%)
5616 {
5617 my (%option) = @_;
5619 # Set the defaults.
5620 $option{'ansi'} = 0
5621 unless defined $option{'ansi'};
5622 $option{'autodep'} = 'no'
5623 unless defined $option{'autodep'};
5624 $option{'linker'} = ''
5625 unless defined $option{'linker'};
5626 $option{'flags'} = []
5627 unless defined $option{'flags'};
5628 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5629 unless defined $option{'output_extensions'};
5630 $option{'nodist_specific'} = 0
5631 unless defined $option{'nodist_specific'};
5633 my $lang = new Language (%option);
5635 # Fill indexes.
5636 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5637 $languages{$lang->name} = $lang;
5638 my $link = $lang->linker;
5639 if ($link)
5640 {
5641 if (exists $link_languages{$link})
5642 {
5643 prog_error ("`$link' has different definitions in "
5644 . $lang->name . " and " . $link_languages{$link}->name)
5645 if $lang->link ne $link_languages{$link}->link;
5646 }
5647 else
5648 {
5649 $link_languages{$link} = $lang;
5650 }
5651 }
5653 # Update the pattern of known extensions.
5654 accept_extensions (@{$lang->extensions});
5656 # Upate the $suffix_rule map.
5657 foreach my $suffix (@{$lang->extensions})
5658 {
5659 foreach my $dest (&{$lang->output_extensions} ($suffix))
5660 {
5661 register_suffix_rule (INTERNAL, $suffix, $dest);
5662 }
5663 }
5664 }
5666 # derive_suffix ($EXT, $OBJ)
5667 # --------------------------
5668 # This function is used to find a path from a user-specified suffix $EXT
5669 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5670 sub derive_suffix ($$)
5671 {
5672 my ($source_ext, $obj) = @_;
5674 while (! $extension_map{$source_ext}
5675 && $source_ext ne $obj
5676 && exists $suffix_rules->{$source_ext}
5677 && exists $suffix_rules->{$source_ext}{$obj})
5678 {
5679 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5680 }
5682 return $source_ext;
5683 }
5686 ################################################################
5688 # Pretty-print something and append to output_rules.
5689 sub pretty_print_rule
5690 {
5691 $output_rules .= &makefile_wrap (@_);
5692 }
5695 ################################################################
5698 ## -------------------------------- ##
5699 ## Handling the conditional stack. ##
5700 ## -------------------------------- ##
5703 # $STRING
5704 # make_conditional_string ($NEGATE, $COND)
5705 # ----------------------------------------
5706 sub make_conditional_string ($$)
5707 {
5708 my ($negate, $cond) = @_;
5709 $cond = "${cond}_TRUE"
5710 unless $cond =~ /^TRUE|FALSE$/;
5711 $cond = Automake::Condition::conditional_negate ($cond)
5712 if $negate;
5713 return $cond;
5714 }
5717 # $COND
5718 # cond_stack_if ($NEGATE, $COND, $WHERE)
5719 # --------------------------------------
5720 sub cond_stack_if ($$$)
5721 {
5722 my ($negate, $cond, $where) = @_;
5724 error $where, "$cond does not appear in AM_CONDITIONAL"
5725 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5727 push (@cond_stack, make_conditional_string ($negate, $cond));
5729 return new Automake::Condition (@cond_stack);
5730 }
5733 # $COND
5734 # cond_stack_else ($NEGATE, $COND, $WHERE)
5735 # ----------------------------------------
5736 sub cond_stack_else ($$$)
5737 {
5738 my ($negate, $cond, $where) = @_;
5740 if (! @cond_stack)
5741 {
5742 error $where, "else without if";
5743 return FALSE;
5744 }
5746 $cond_stack[$#cond_stack] =
5747 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5749 # If $COND is given, check against it.
5750 if (defined $cond)
5751 {
5752 $cond = make_conditional_string ($negate, $cond);
5754 error ($where, "else reminder ($negate$cond) incompatible with "
5755 . "current conditional: $cond_stack[$#cond_stack]")
5756 if $cond_stack[$#cond_stack] ne $cond;
5757 }
5759 return new Automake::Condition (@cond_stack);
5760 }
5763 # $COND
5764 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5765 # -----------------------------------------
5766 sub cond_stack_endif ($$$)
5767 {
5768 my ($negate, $cond, $where) = @_;
5769 my $old_cond;
5771 if (! @cond_stack)
5772 {
5773 error $where, "endif without if";
5774 return TRUE;
5775 }
5777 # If $COND is given, check against it.
5778 if (defined $cond)
5779 {
5780 $cond = make_conditional_string ($negate, $cond);
5782 error ($where, "endif reminder ($negate$cond) incompatible with "
5783 . "current conditional: $cond_stack[$#cond_stack]")
5784 if $cond_stack[$#cond_stack] ne $cond;
5785 }
5787 pop @cond_stack;
5789 return new Automake::Condition (@cond_stack);
5790 }
5796 ## ------------------------ ##
5797 ## Handling the variables. ##
5798 ## ------------------------ ##
5801 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
5802 # -----------------------------------------------------
5803 # Like define_variable, but the value is a list, and the variable may
5804 # be defined conditionally. The second argument is the Condition
5805 # under which the value should be defined; this should be the empty
5806 # string to define the variable unconditionally. The third argument
5807 # is a list holding the values to use for the variable. The value is
5808 # pretty printed in the output file.
5809 sub define_pretty_variable ($$$@)
5810 {
5811 my ($var, $cond, $where, @value) = @_;
5813 if (! vardef ($var, $cond))
5814 {
5815 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
5816 '', $where, VAR_PRETTY);
5817 rvar ($var)->rdef ($cond)->set_seen;
5818 }
5819 }
5822 # define_variable ($VAR, $VALUE, $WHERE)
5823 # --------------------------------------
5824 # Define a new Automake Makefile variable VAR to VALUE, but only if
5825 # not already defined.
5826 sub define_variable ($$$)
5827 {
5828 my ($var, $value, $where) = @_;
5829 define_pretty_variable ($var, TRUE, $where, $value);
5830 }
5833 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
5834 # -----------------------------------------------------------
5835 # Define the $VAR which content is the list of file names composed of
5836 # a @BASENAME and the $EXTENSION.
5837 sub define_files_variable ($\@$$)
5838 {
5839 my ($var, $basename, $extension, $where) = @_;
5840 define_variable ($var,
5841 join (' ', map { "$_.$extension" } @$basename),
5842 $where);
5843 }
5846 # Like define_variable, but define a variable to be the configure
5847 # substitution by the same name.
5848 sub define_configure_variable ($)
5849 {
5850 my ($var) = @_;
5852 my $pretty = VAR_ASIS;
5853 my $owner = VAR_CONFIGURE;
5855 # Some variables we do not want to output. For instance it
5856 # would be a bad idea to output `U = @U@` when `@U@` can be
5857 # substituted as `\`.
5858 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
5860 # ANSI2KNR is a variable that Automake wants to redefine, so
5861 # it must be owned by Automake. (It is also used as a proof
5862 # that AM_C_PROTOTYPES has been run, that's why we do not simply
5863 # omit the AC_SUBST.)
5864 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
5866 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
5867 '', $configure_vars{$var}, $pretty);
5868 }
5871 # define_compiler_variable ($LANG)
5872 # --------------------------------
5873 # Define a compiler variable. We also handle defining the `LT'
5874 # version of the command when using libtool.
5875 sub define_compiler_variable ($)
5876 {
5877 my ($lang) = @_;
5879 my ($var, $value) = ($lang->compiler, $lang->compile);
5880 my $libtool_tag = '';
5881 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5882 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5883 &define_variable ($var, $value, INTERNAL);
5884 &define_variable ("LT$var",
5885 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5886 . "\$(LIBTOOLFLAGS) --mode=compile $value",
5887 INTERNAL)
5888 if var ('LIBTOOL');
5889 }
5892 # define_linker_variable ($LANG)
5893 # ------------------------------
5894 # Define linker variables.
5895 sub define_linker_variable ($)
5896 {
5897 my ($lang) = @_;
5899 my $libtool_tag = '';
5900 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5901 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5902 # CCLD = $(CC).
5903 &define_variable ($lang->lder, $lang->ld, INTERNAL);
5904 # CCLINK = $(CCLD) blah blah...
5905 &define_variable ($lang->linker,
5906 ((var ('LIBTOOL') ?
5907 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5908 . "\$(LIBTOOLFLAGS) --mode=link " : '')
5909 . $lang->link),
5910 INTERNAL);
5911 }
5913 sub define_per_target_linker_variable ($$)
5914 {
5915 my ($linker, $target) = @_;
5917 # If the user wrote a custom link command, we don't define ours.
5918 return "${target}_LINK"
5919 if set_seen "${target}_LINK";
5921 my $xlink = $linker ? $linker : 'LINK';
5923 my $lang = $link_languages{$xlink};
5924 prog_error "Unknown language for linker variable `$xlink'"
5925 unless $lang;
5927 my $link_command = $lang->link;
5928 if (var 'LIBTOOL')
5929 {
5930 my $libtool_tag = '';
5931 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5932 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5934 $link_command =
5935 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
5936 . "--mode=link " . $link_command;
5937 }
5939 # Rewrite each occurrence of `AM_$flag' in the link
5940 # command into `${derived}_$flag' if it exists.
5941 my $orig_command = $link_command;
5942 my @flags = (@{$lang->flags}, 'LDFLAGS');
5943 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
5944 for my $flag (@flags)
5945 {
5946 my $val = "${target}_$flag";
5947 $link_command =~ s/\(AM_$flag\)/\($val\)/
5948 if set_seen ($val);
5949 }
5951 # If the computed command is the same as the generic command, use
5952 # the command linker variable.
5953 return $lang->linker
5954 if $link_command eq $orig_command;
5956 &define_variable ("${target}_LINK", $link_command, INTERNAL);
5957 return "${target}_LINK";
5958 }
5960 ################################################################
5962 # &check_trailing_slash ($WHERE, $LINE)
5963 # --------------------------------------
5964 # Return 1 iff $LINE ends with a slash.
5965 # Might modify $LINE.
5966 sub check_trailing_slash ($\$)
5967 {
5968 my ($where, $line) = @_;
5970 # Ignore `##' lines.
5971 return 0 if $$line =~ /$IGNORE_PATTERN/o;
5973 # Catch and fix a common error.
5974 msg "syntax", $where, "whitespace following trailing backslash"
5975 if $$line =~ s/\\\s+\n$/\\\n/;
5977 return $$line =~ /\\$/;
5978 }
5981 # &read_am_file ($AMFILE, $WHERE)
5982 # -------------------------------
5983 # Read Makefile.am and set up %contents. Simultaneously copy lines
5984 # from Makefile.am into $output_trailer, or define variables as
5985 # appropriate. NOTE we put rules in the trailer section. We want
5986 # user rules to come after our generated stuff.
5987 sub read_am_file ($$)
5988 {
5989 my ($amfile, $where) = @_;
5991 my $am_file = new Automake::XFile ("< $amfile");
5992 verb "reading $amfile";
5994 # Keep track of the youngest output dependency.
5995 my $mtime = mtime $amfile;
5996 $output_deps_greatest_timestamp = $mtime
5997 if $mtime > $output_deps_greatest_timestamp;
5999 my $spacing = '';
6000 my $comment = '';
6001 my $blank = 0;
6002 my $saw_bk = 0;
6003 my $var_look = VAR_ASIS;
6005 use constant IN_VAR_DEF => 0;
6006 use constant IN_RULE_DEF => 1;
6007 use constant IN_COMMENT => 2;
6008 my $prev_state = IN_RULE_DEF;
6010 while ($_ = $am_file->getline)
6011 {
6012 $where->set ("$amfile:$.");
6013 if (/$IGNORE_PATTERN/o)
6014 {
6015 # Merely delete comments beginning with two hashes.
6016 }
6017 elsif (/$WHITE_PATTERN/o)
6018 {
6019 error $where, "blank line following trailing backslash"
6020 if $saw_bk;
6021 # Stick a single white line before the incoming macro or rule.
6022 $spacing = "\n";
6023 $blank = 1;
6024 # Flush all comments seen so far.
6025 if ($comment ne '')
6026 {
6027 $output_vars .= $comment;
6028 $comment = '';
6029 }
6030 }
6031 elsif (/$COMMENT_PATTERN/o)
6032 {
6033 # Stick comments before the incoming macro or rule. Make
6034 # sure a blank line precedes the first block of comments.
6035 $spacing = "\n" unless $blank;
6036 $blank = 1;
6037 $comment .= $spacing . $_;
6038 $spacing = '';
6039 $prev_state = IN_COMMENT;
6040 }
6041 else
6042 {
6043 last;
6044 }
6045 $saw_bk = check_trailing_slash ($where, $_);
6046 }
6048 # We save the conditional stack on entry, and then check to make
6049 # sure it is the same on exit. This lets us conditionally include
6050 # other files.
6051 my @saved_cond_stack = @cond_stack;
6052 my $cond = new Automake::Condition (@cond_stack);
6054 my $last_var_name = '';
6055 my $last_var_type = '';
6056 my $last_var_value = '';
6057 my $last_where;
6058 # FIXME: shouldn't use $_ in this loop; it is too big.
6059 while ($_)
6060 {
6061 $where->set ("$amfile:$.");
6063 # Make sure the line is \n-terminated.
6064 chomp;
6065 $_ .= "\n";
6067 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6068 # used by users. @MAINT@ is an anachronism now.
6069 $_ =~ s/\@MAINT\@//g
6070 unless $seen_maint_mode;
6072 my $new_saw_bk = check_trailing_slash ($where, $_);
6074 if (/$IGNORE_PATTERN/o)
6075 {
6076 # Merely delete comments beginning with two hashes.
6078 # Keep any backslash from the previous line.
6079 $new_saw_bk = $saw_bk;
6080 }
6081 elsif (/$WHITE_PATTERN/o)
6082 {
6083 # Stick a single white line before the incoming macro or rule.
6084 $spacing = "\n";
6085 error $where, "blank line following trailing backslash"
6086 if $saw_bk;
6087 }
6088 elsif (/$COMMENT_PATTERN/o)
6089 {
6090 error $where, "comment following trailing backslash"
6091 if $saw_bk && $comment eq '';
6093 # Stick comments before the incoming macro or rule.
6094 $comment .= $spacing . $_;
6095 $spacing = '';
6096 $prev_state = IN_COMMENT;
6097 }
6098 elsif ($saw_bk)
6099 {
6100 if ($prev_state == IN_RULE_DEF)
6101 {
6102 my $cond = new Automake::Condition @cond_stack;
6103 $output_trailer .= $cond->subst_string;
6104 $output_trailer .= $_;
6105 }
6106 elsif ($prev_state == IN_COMMENT)
6107 {
6108 # If the line doesn't start with a `#', add it.
6109 # We do this because a continued comment like
6110 # # A = foo \
6111 # bar \
6112 # baz
6113 # is not portable. BSD make doesn't honor
6114 # escaped newlines in comments.
6115 s/^#?/#/;
6116 $comment .= $spacing . $_;
6117 }
6118 else # $prev_state == IN_VAR_DEF
6119 {
6120 $last_var_value .= ' '
6121 unless $last_var_value =~ /\s$/;
6122 $last_var_value .= $_;
6124 if (!/\\$/)
6125 {
6126 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6127 $last_var_type, $cond,
6128 $last_var_value, $comment,
6129 $last_where, VAR_ASIS)
6130 if $cond != FALSE;
6131 $comment = $spacing = '';
6132 }
6133 }
6134 }
6136 elsif (/$IF_PATTERN/o)
6137 {
6138 $cond = cond_stack_if ($1, $2, $where);
6139 }
6140 elsif (/$ELSE_PATTERN/o)
6141 {
6142 $cond = cond_stack_else ($1, $2, $where);
6143 }
6144 elsif (/$ENDIF_PATTERN/o)
6145 {
6146 $cond = cond_stack_endif ($1, $2, $where);
6147 }
6149 elsif (/$RULE_PATTERN/o)
6150 {
6151 # Found a rule.
6152 $prev_state = IN_RULE_DEF;
6154 # For now we have to output all definitions of user rules
6155 # and can't diagnose duplicates (see the comment in
6156 # Automake::Rule::define). So we go on and ignore the return value.
6157 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6159 check_variable_expansions ($_, $where);
6161 $output_trailer .= $comment . $spacing;
6162 my $cond = new Automake::Condition @cond_stack;
6163 $output_trailer .= $cond->subst_string;
6164 $output_trailer .= $_;
6165 $comment = $spacing = '';
6166 }
6167 elsif (/$ASSIGNMENT_PATTERN/o)
6168 {
6169 # Found a macro definition.
6170 $prev_state = IN_VAR_DEF;
6171 $last_var_name = $1;
6172 $last_var_type = $2;
6173 $last_var_value = $3;
6174 $last_where = $where->clone;
6175 if ($3 ne '' && substr ($3, -1) eq "\\")
6176 {
6177 # We preserve the `\' because otherwise the long lines
6178 # that are generated will be truncated by broken
6179 # `sed's.
6180 $last_var_value = $3 . "\n";
6181 }
6182 # Normally we try to output variable definitions in the
6183 # same format they were input. However, POSIX compliant
6184 # systems are not required to support lines longer than
6185 # 2048 bytes (most notably, some sed implementation are
6186 # limited to 4000 bytes, and sed is used by config.status
6187 # to rewrite Makefile.in into Makefile). Moreover nobody
6188 # would really write such long lines by hand since it is
6189 # hardly maintainable. So if a line is longer that 1000
6190 # bytes (an arbitrary limit), assume it has been
6191 # automatically generated by some tools, and flatten the
6192 # variable definition. Otherwise, keep the variable as it
6193 # as been input.
6194 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6196 if (!/\\$/)
6197 {
6198 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6199 $last_var_type, $cond,
6200 $last_var_value, $comment,
6201 $last_where, $var_look)
6202 if $cond != FALSE;
6203 $comment = $spacing = '';
6204 $var_look = VAR_ASIS;
6205 }
6206 }
6207 elsif (/$INCLUDE_PATTERN/o)
6208 {
6209 my $path = $1;
6211 if ($path =~ s/^\$\(top_srcdir\)\///)
6212 {
6213 push (@include_stack, "\$\(top_srcdir\)/$path");
6214 # Distribute any included file.
6216 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6217 # otherwise OSF make will implicitly copy the included
6218 # file in the build tree during `make distdir' to satisfy
6219 # the dependency.
6220 # (subdircond2.test and subdircond3.test will fail.)
6221 push_dist_common ("\$\(top_srcdir\)/$path");
6222 }
6223 else
6224 {
6225 $path =~ s/\$\(srcdir\)\///;
6226 push (@include_stack, "\$\(srcdir\)/$path");
6227 # Always use the $(srcdir) prefix in DIST_COMMON,
6228 # otherwise OSF make will implicitly copy the included
6229 # file in the build tree during `make distdir' to satisfy
6230 # the dependency.
6231 # (subdircond2.test and subdircond3.test will fail.)
6232 push_dist_common ("\$\(srcdir\)/$path");
6233 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6234 }
6235 $where->push_context ("`$path' included from here");
6236 &read_am_file ($path, $where);
6237 $where->pop_context;
6238 }
6239 else
6240 {
6241 # This isn't an error; it is probably a continued rule.
6242 # In fact, this is what we assume.
6243 $prev_state = IN_RULE_DEF;
6244 check_variable_expansions ($_, $where);
6245 $output_trailer .= $comment . $spacing;
6246 my $cond = new Automake::Condition @cond_stack;
6247 $output_trailer .= $cond->subst_string;
6248 $output_trailer .= $_;
6249 $comment = $spacing = '';
6250 error $where, "`#' comment at start of rule is unportable"
6251 if $_ =~ /^\t\s*\#/;
6252 }
6254 $saw_bk = $new_saw_bk;
6255 $_ = $am_file->getline;
6256 }
6258 $output_trailer .= $comment;
6260 error ($where, "trailing backslash on last line")
6261 if $saw_bk;
6263 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6264 : "too many conditionals closed in include file"))
6265 if "@saved_cond_stack" ne "@cond_stack";
6266 }
6269 # define_standard_variables ()
6270 # ----------------------------
6271 # A helper for read_main_am_file which initializes configure variables
6272 # and variables from header-vars.am.
6273 sub define_standard_variables
6274 {
6275 my $saved_output_vars = $output_vars;
6276 my ($comments, undef, $rules) =
6277 file_contents_internal (1, "$libdir/am/header-vars.am",
6278 new Automake::Location);
6280 foreach my $var (sort keys %configure_vars)
6281 {
6282 &define_configure_variable ($var);
6283 }
6285 $output_vars .= $comments . $rules;
6286 }
6288 # Read main am file.
6289 sub read_main_am_file
6290 {
6291 my ($amfile) = @_;
6293 # This supports the strange variable tricks we are about to play.
6294 prog_error (macros_dump () . "variable defined before read_main_am_file")
6295 if (scalar (variables) > 0);
6297 # Generate copyright header for generated Makefile.in.
6298 # We do discard the output of predefined variables, handled below.
6299 $output_vars = ("# $in_file_name generated by automake "
6300 . $VERSION . " from $am_file_name.\n");
6301 $output_vars .= '# ' . subst ('configure_input') . "\n";
6302 $output_vars .= $gen_copyright;
6304 # We want to predefine as many variables as possible. This lets
6305 # the user set them with `+=' in Makefile.am.
6306 &define_standard_variables;
6308 # Read user file, which might override some of our values.
6309 &read_am_file ($amfile, new Automake::Location);
6310 }
6314 ################################################################
6316 # $FLATTENED
6317 # &flatten ($STRING)
6318 # ------------------
6319 # Flatten the $STRING and return the result.
6320 sub flatten
6321 {
6322 $_ = shift;
6324 s/\\\n//somg;
6325 s/\s+/ /g;
6326 s/^ //;
6327 s/ $//;
6329 return $_;
6330 }
6332 # transform($TOKEN, \%PAIRS)
6333 # ==========================
6334 # If ($TOKEN, $VAL) is in %PAIRS:
6335 # - replaces %$TOKEN% with $VAL,
6336 # - enables/disables ?$TOKEN? and ?!$TOKEN?,
6337 # - replaces %?$TOKEN% with TRUE or FALSE.
6338 sub transform($$)
6339 {
6340 my ($token, $transform) = @_;
6342 if (substr ($token, 0, 1) eq '%')
6343 {
6344 my $cond = (substr ($token, 1, 1) eq '?') ? 1 : 0;
6345 $token = substr ($token, 1 + $cond, -1);
6346 my $val = $transform->{$token};
6347 prog_error "Unknown %token% `$token'" unless defined $val;
6348 if ($cond)
6349 {
6350 return $val ? 'TRUE' : 'FALSE';
6351 }
6352 else
6353 {
6354 return $val;
6355 }
6356 }
6357 # Now $token is '?xxx?' or '?!xxx?'.
6358 my $neg = (substr ($token, 1, 1) eq '!') ? 1 : 0;
6359 $token = substr ($token, 1 + $neg, -1);
6360 my $val = $transform->{$token};
6361 prog_error "Unknown ?token? `$token' (neg = $neg)" unless defined $val;
6362 return (!!$val == $neg) ? '##%' : '';
6363 }
6365 # @PARAGRAPHS
6366 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6367 # ------------------------------------------
6368 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6369 # paragraphs.
6370 sub make_paragraphs ($%)
6371 {
6372 my ($file, %transform) = @_;
6374 # Complete %transform with global options.
6375 # Note that %transform goes last, so it overrides global options.
6376 %transform = ('CYGNUS' => !! option 'cygnus',
6377 'MAINTAINER-MODE'
6378 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6380 'BZIP2' => !! option 'dist-bzip2',
6381 'COMPRESS' => !! option 'dist-tarZ',
6382 'GZIP' => ! option 'no-dist-gzip',
6383 'SHAR' => !! option 'dist-shar',
6384 'ZIP' => !! option 'dist-zip',
6386 'INSTALL-INFO' => ! option 'no-installinfo',
6387 'INSTALL-MAN' => ! option 'no-installman',
6388 'CK-NEWS' => !! option 'check-news',
6390 'SUBDIRS' => !! var ('SUBDIRS'),
6391 'TOPDIR_P' => $relative_dir eq '.',
6393 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6394 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6395 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6397 'LIBTOOL' => !! var ('LIBTOOL'),
6398 'NONLIBTOOL' => 1,
6399 'FIRST' => ! $transformed_files{$file},
6400 %transform);
6402 $transformed_files{$file} = 1;
6403 $_ = $am_file_cache{$file};
6405 if (! defined $_)
6406 {
6407 verb "reading $file";
6408 # Swallow the whole file.
6409 my $fc_file = new Automake::XFile "< $file";
6410 my $saved_dollar_slash = $/;
6411 undef $/;
6412 $_ = $fc_file->getline;
6413 $/ = $saved_dollar_slash;
6414 $fc_file->close;
6416 # Remove ##-comments.
6417 # Besides we don't need more than two consecutive new-lines.
6418 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6420 $am_file_cache{$file} = $_;
6421 }
6423 # Substitute Automake template tokens.
6424 s/(?:%\??[\w\-]+%|\?!?[\w\-]+\?)/transform($&, \%transform)/ge;
6425 # transform() may have added some ##%-comments to strip.
6426 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
6427 # ####### and do not remove the latter.)
6428 s/^[ \t]*(?:##%)+.*\n//gm;
6430 # Split at unescaped new lines.
6431 my @lines = split (/(?<!\\)\n/, $_);
6432 my @res;
6434 while (defined ($_ = shift @lines))
6435 {
6436 my $paragraph = $_;
6437 # If we are a rule, eat as long as we start with a tab.
6438 if (/$RULE_PATTERN/smo)
6439 {
6440 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6441 {
6442 $paragraph .= "\n$_";
6443 }
6444 unshift (@lines, $_);
6445 }
6447 # If we are a comments, eat as much comments as you can.
6448 elsif (/$COMMENT_PATTERN/smo)
6449 {
6450 while (defined ($_ = shift @lines)
6451 && $_ =~ /$COMMENT_PATTERN/smo)
6452 {
6453 $paragraph .= "\n$_";
6454 }
6455 unshift (@lines, $_);
6456 }
6458 push @res, $paragraph;
6459 }
6461 return @res;
6462 }
6466 # ($COMMENT, $VARIABLES, $RULES)
6467 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6468 # -------------------------------------------------------------
6469 # Return contents of a file from $libdir/am, automatically skipping
6470 # macros or rules which are already known. $IS_AM iff the caller is
6471 # reading an Automake file (as opposed to the user's Makefile.am).
6472 sub file_contents_internal ($$$%)
6473 {
6474 my ($is_am, $file, $where, %transform) = @_;
6476 $where->set ($file);
6478 my $result_vars = '';
6479 my $result_rules = '';
6480 my $comment = '';
6481 my $spacing = '';
6483 # The following flags are used to track rules spanning across
6484 # multiple paragraphs.
6485 my $is_rule = 0; # 1 if we are processing a rule.
6486 my $discard_rule = 0; # 1 if the current rule should not be output.
6488 # We save the conditional stack on entry, and then check to make
6489 # sure it is the same on exit. This lets us conditionally include
6490 # other files.
6491 my @saved_cond_stack = @cond_stack;
6492 my $cond = new Automake::Condition (@cond_stack);
6494 foreach (make_paragraphs ($file, %transform))
6495 {
6496 # FIXME: no line number available.
6497 $where->set ($file);
6499 # Sanity checks.
6500 error $where, "blank line following trailing backslash:\n$_"
6501 if /\\$/;
6502 error $where, "comment following trailing backslash:\n$_"
6503 if /\\#/;
6505 if (/^$/)
6506 {
6507 $is_rule = 0;
6508 # Stick empty line before the incoming macro or rule.
6509 $spacing = "\n";
6510 }
6511 elsif (/$COMMENT_PATTERN/mso)
6512 {
6513 $is_rule = 0;
6514 # Stick comments before the incoming macro or rule.
6515 $comment = "$_\n";
6516 }
6518 # Handle inclusion of other files.
6519 elsif (/$INCLUDE_PATTERN/o)
6520 {
6521 if ($cond != FALSE)
6522 {
6523 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6524 $where->push_context ("`$file' included from here");
6525 # N-ary `.=' fails.
6526 my ($com, $vars, $rules)
6527 = file_contents_internal ($is_am, $file, $where, %transform);
6528 $where->pop_context;
6529 $comment .= $com;
6530 $result_vars .= $vars;
6531 $result_rules .= $rules;
6532 }
6533 }
6535 # Handling the conditionals.
6536 elsif (/$IF_PATTERN/o)
6537 {
6538 $cond = cond_stack_if ($1, $2, $file);
6539 }
6540 elsif (/$ELSE_PATTERN/o)
6541 {
6542 $cond = cond_stack_else ($1, $2, $file);
6543 }
6544 elsif (/$ENDIF_PATTERN/o)
6545 {
6546 $cond = cond_stack_endif ($1, $2, $file);
6547 }
6549 # Handling rules.
6550 elsif (/$RULE_PATTERN/mso)
6551 {
6552 $is_rule = 1;
6553 $discard_rule = 0;
6554 # Separate relationship from optional actions: the first
6555 # `new-line tab" not preceded by backslash (continuation
6556 # line).
6557 my $paragraph = $_;
6558 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6559 my ($relationship, $actions) = ($1, $2 || '');
6561 # Separate targets from dependencies: the first colon.
6562 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6563 my ($targets, $dependencies) = ($1, $2);
6564 # Remove the escaped new lines.
6565 # I don't know why, but I have to use a tmp $flat_deps.
6566 my $flat_deps = &flatten ($dependencies);
6567 my @deps = split (' ', $flat_deps);
6569 foreach (split (' ' , $targets))
6570 {
6571 # FIXME: 1. We are not robust to people defining several targets
6572 # at once, only some of them being in %dependencies. The
6573 # actions from the targets in %dependencies are usually generated
6574 # from the content of %actions, but if some targets in $targets
6575 # are not in %dependencies the ELSE branch will output
6576 # a rule for all $targets (i.e. the targets which are both
6577 # in %dependencies and $targets will have two rules).
6579 # FIXME: 2. The logic here is not able to output a
6580 # multi-paragraph rule several time (e.g. for each condition
6581 # it is defined for) because it only knows the first paragraph.
6583 # FIXME: 3. We are not robust to people defining a subset
6584 # of a previously defined "multiple-target" rule. E.g.
6585 # `foo:' after `foo bar:'.
6587 # Output only if not in FALSE.
6588 if (defined $dependencies{$_} && $cond != FALSE)
6589 {
6590 &depend ($_, @deps);
6591 if ($actions{$_})
6592 {
6593 $actions{$_} .= "\n$actions" if $actions;
6594 }
6595 else
6596 {
6597 $actions{$_} = $actions;
6598 }
6599 }
6600 else
6601 {
6602 # Free-lance dependency. Output the rule for all the
6603 # targets instead of one by one.
6604 my @undefined_conds =
6605 Automake::Rule::define ($targets, $file,
6606 $is_am ? RULE_AUTOMAKE : RULE_USER,
6607 $cond, $where);
6608 for my $undefined_cond (@undefined_conds)
6609 {
6610 my $condparagraph = $paragraph;
6611 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6612 $result_rules .= "$spacing$comment$condparagraph\n";
6613 }
6614 if (scalar @undefined_conds == 0)
6615 {
6616 # Remember to discard next paragraphs
6617 # if they belong to this rule.
6618 # (but see also FIXME: #2 above.)
6619 $discard_rule = 1;
6620 }
6621 $comment = $spacing = '';
6622 last;
6623 }
6624 }
6625 }
6627 elsif (/$ASSIGNMENT_PATTERN/mso)
6628 {
6629 my ($var, $type, $val) = ($1, $2, $3);
6630 error $where, "variable `$var' with trailing backslash"
6631 if /\\$/;
6633 $is_rule = 0;
6635 Automake::Variable::define ($var,
6636 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6637 $type, $cond, $val, $comment, $where,
6638 VAR_ASIS)
6639 if $cond != FALSE;
6641 $comment = $spacing = '';
6642 }
6643 else
6644 {
6645 # This isn't an error; it is probably some tokens which
6646 # configure is supposed to replace, such as `@SET-MAKE@',
6647 # or some part of a rule cut by an if/endif.
6648 if (! $cond->false && ! ($is_rule && $discard_rule))
6649 {
6650 s/^/$cond->subst_string/gme;
6651 $result_rules .= "$spacing$comment$_\n";
6652 }
6653 $comment = $spacing = '';
6654 }
6655 }
6657 error ($where, @cond_stack ?
6658 "unterminated conditionals: @cond_stack" :
6659 "too many conditionals closed in include file")
6660 if "@saved_cond_stack" ne "@cond_stack";
6662 return ($comment, $result_vars, $result_rules);
6663 }
6666 # $CONTENTS
6667 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6668 # ------------------------------------------------
6669 # Return contents of a file from $libdir/am, automatically skipping
6670 # macros or rules which are already known.
6671 sub file_contents ($$%)
6672 {
6673 my ($basename, $where, %transform) = @_;
6674 my ($comments, $variables, $rules) =
6675 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6676 %transform);
6677 return "$comments$variables$rules";
6678 }
6681 # @PREFIX
6682 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6683 # -----------------------------------------------------
6684 # Find all variable prefixes that are used for install directories. A
6685 # prefix `zar' qualifies iff:
6686 #
6687 # * `zardir' is a variable.
6688 # * `zar_PRIMARY' is a variable.
6689 #
6690 # As a side effect, it looks for misspellings. It is an error to have
6691 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6692 # "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
6693 # of the same name (with "dir" appended) exists. For instance, if the
6694 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6695 # This is to provide a little extra flexibility in those cases which
6696 # need it.
6697 sub am_primary_prefixes ($$@)
6698 {
6699 my ($primary, $can_dist, @prefixes) = @_;
6701 local $_;
6702 my %valid = map { $_ => 0 } @prefixes;
6703 $valid{'EXTRA'} = 0;
6704 foreach my $var (variables $primary)
6705 {
6706 # Automake is allowed to define variables that look like primaries
6707 # but which aren't. E.g. INSTALL_sh_DATA.
6708 # Autoconf can also define variables like INSTALL_DATA, so
6709 # ignore all configure variables (at least those which are not
6710 # redefined in Makefile.am).
6711 # FIXME: We should make sure that these variables are not
6712 # conditionally defined (or else adjust the condition below).
6713 my $def = $var->def (TRUE);
6714 next if $def && $def->owner != VAR_MAKEFILE;
6716 my $varname = $var->name;
6718 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
6719 {
6720 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6721 if ($dist ne '' && ! $can_dist)
6722 {
6723 err_var ($var,
6724 "invalid variable `$varname': `dist' is forbidden");
6725 }
6726 # Standard directories must be explicitly allowed.
6727 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6728 {
6729 err_var ($var,
6730 "`${X}dir' is not a legitimate directory " .
6731 "for `$primary'");
6732 }
6733 # A not explicitly valid directory is allowed if Xdir is defined.
6734 elsif (! defined $valid{$X} &&
6735 $var->requires_variables ("`$varname' is used", "${X}dir"))
6736 {
6737 # Nothing to do. Any error message has been output
6738 # by $var->requires_variables.
6739 }
6740 else
6741 {
6742 # Ensure all extended prefixes are actually used.
6743 $valid{"$base$dist$X"} = 1;
6744 }
6745 }
6746 else
6747 {
6748 prog_error "unexpected variable name: $varname";
6749 }
6750 }
6752 # Return only those which are actually defined.
6753 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6754 }
6757 # Handle `where_HOW' variable magic. Does all lookups, generates
6758 # install code, and possibly generates code to define the primary
6759 # variable. The first argument is the name of the .am file to munge,
6760 # the second argument is the primary variable (e.g. HEADERS), and all
6761 # subsequent arguments are possible installation locations.
6762 #
6763 # Returns list of [$location, $value] pairs, where
6764 # $value's are the values in all where_HOW variable, and $location
6765 # there associated location (the place here their parent variables were
6766 # defined).
6767 #
6768 # FIXME: this should be rewritten to be cleaner. It should be broken
6769 # up into multiple functions.
6770 #
6771 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6772 sub am_install_var
6773 {
6774 my (@args) = @_;
6776 my $do_require = 1;
6777 my $can_dist = 0;
6778 my $default_dist = 0;
6779 while (@args)
6780 {
6781 if ($args[0] eq '-noextra')
6782 {
6783 $do_require = 0;
6784 }
6785 elsif ($args[0] eq '-candist')
6786 {
6787 $can_dist = 1;
6788 }
6789 elsif ($args[0] eq '-defaultdist')
6790 {
6791 $default_dist = 1;
6792 $can_dist = 1;
6793 }
6794 elsif ($args[0] !~ /^-/)
6795 {
6796 last;
6797 }
6798 shift (@args);
6799 }
6801 my ($file, $primary, @prefix) = @args;
6803 # Now that configure substitutions are allowed in where_HOW
6804 # variables, it is an error to actually define the primary. We
6805 # allow `JAVA', as it is customarily used to mean the Java
6806 # interpreter. This is but one of several Java hacks. Similarly,
6807 # `PYTHON' is customarily used to mean the Python interpreter.
6808 reject_var $primary, "`$primary' is an anachronism"
6809 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
6811 # Get the prefixes which are valid and actually used.
6812 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
6814 # If a primary includes a configure substitution, then the EXTRA_
6815 # form is required. Otherwise we can't properly do our job.
6816 my $require_extra;
6818 my @used = ();
6819 my @result = ();
6821 foreach my $X (@prefix)
6822 {
6823 my $nodir_name = $X;
6824 my $one_name = $X . '_' . $primary;
6825 my $one_var = var $one_name;
6827 my $strip_subdir = 1;
6828 # If subdir prefix should be preserved, do so.
6829 if ($nodir_name =~ /^nobase_/)
6830 {
6831 $strip_subdir = 0;
6832 $nodir_name =~ s/^nobase_//;
6833 }
6835 # If files should be distributed, do so.
6836 my $dist_p = 0;
6837 if ($can_dist)
6838 {
6839 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
6840 || (! $default_dist && $nodir_name =~ /^dist_/));
6841 $nodir_name =~ s/^(dist|nodist)_//;
6842 }
6845 # Use the location of the currently processed variable.
6846 # We are not processing a particular condition, so pick the first
6847 # available.
6848 my $tmpcond = $one_var->conditions->one_cond;
6849 my $where = $one_var->rdef ($tmpcond)->location->clone;
6851 # Append actual contents of where_PRIMARY variable to
6852 # @result, skipping @substitutions@.
6853 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
6854 {
6855 my ($loc, $value) = @$locvals;
6856 # Skip configure substitutions.
6857 if ($value =~ /^\@.*\@$/)
6858 {
6859 if ($nodir_name eq 'EXTRA')
6860 {
6861 error ($where,
6862 "`$one_name' contains configure substitution, "
6863 . "but shouldn't");
6864 }
6865 # Check here to make sure variables defined in
6866 # configure.ac do not imply that EXTRA_PRIMARY
6867 # must be defined.
6868 elsif (! defined $configure_vars{$one_name})
6869 {
6870 $require_extra = $one_name
6871 if $do_require;
6872 }
6873 }
6874 else
6875 {
6876 push (@result, $locvals);
6877 }
6878 }
6879 # A blatant hack: we rewrite each _PROGRAMS primary to include
6880 # EXEEXT.
6881 append_exeext { 1 } $one_name
6882 if $primary eq 'PROGRAMS';
6883 # "EXTRA" shouldn't be used when generating clean targets,
6884 # all, or install targets. We used to warn if EXTRA_FOO was
6885 # defined uselessly, but this was annoying.
6886 next
6887 if $nodir_name eq 'EXTRA';
6889 if ($nodir_name eq 'check')
6890 {
6891 push (@check, '$(' . $one_name . ')');
6892 }
6893 else
6894 {
6895 push (@used, '$(' . $one_name . ')');
6896 }
6898 # Is this to be installed?
6899 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
6901 # If so, with install-exec? (or install-data?).
6902 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
6904 my $check_options_p = $install_p && !! option 'std-options';
6906 # Use the location of the currently processed variable as context.
6907 $where->push_context ("while processing `$one_name'");
6909 # The variable containing all file to distribute.
6910 my $distvar = "\$($one_name)";
6911 $distvar = shadow_unconditionally ($one_name, $where)
6912 if ($dist_p && $one_var->has_conditional_contents);
6914 # Singular form of $PRIMARY.
6915 (my $one_primary = $primary) =~ s/S$//;
6916 $output_rules .= &file_contents ($file, $where,
6917 PRIMARY => $primary,
6918 ONE_PRIMARY => $one_primary,
6919 DIR => $X,
6920 NDIR => $nodir_name,
6921 BASE => $strip_subdir,
6923 EXEC => $exec_p,
6924 INSTALL => $install_p,
6925 DIST => $dist_p,
6926 DISTVAR => $distvar,
6927 'CK-OPTS' => $check_options_p);
6928 }
6930 # The JAVA variable is used as the name of the Java interpreter.
6931 # The PYTHON variable is used as the name of the Python interpreter.
6932 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
6933 {
6934 # Define it.
6935 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
6936 $output_vars .= "\n";
6937 }
6939 err_var ($require_extra,
6940 "`$require_extra' contains configure substitution,\n"
6941 . "but `EXTRA_$primary' not defined")
6942 if ($require_extra && ! var ('EXTRA_' . $primary));
6944 # Push here because PRIMARY might be configure time determined.
6945 push (@all, '$(' . $primary . ')')
6946 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
6948 # Make the result unique. This lets the user use conditionals in
6949 # a natural way, but still lets us program lazily -- we don't have
6950 # to worry about handling a particular object more than once.
6951 # We will keep only one location per object.
6952 my %result = ();
6953 for my $pair (@result)
6954 {
6955 my ($loc, $val) = @$pair;
6956 $result{$val} = $loc;
6957 }
6958 my @l = sort keys %result;
6959 return map { [$result{$_}->clone, $_] } @l;
6960 }
6963 ################################################################
6965 # Each key in this hash is the name of a directory holding a
6966 # Makefile.in. These variables are local to `is_make_dir'.
6967 my %make_dirs = ();
6968 my $make_dirs_set = 0;
6970 sub is_make_dir
6971 {
6972 my ($dir) = @_;
6973 if (! $make_dirs_set)
6974 {
6975 foreach my $iter (@configure_input_files)
6976 {
6977 $make_dirs{dirname ($iter)} = 1;
6978 }
6979 # We also want to notice Makefile.in's.
6980 foreach my $iter (@other_input_files)
6981 {
6982 if ($iter =~ /Makefile\.in$/)
6983 {
6984 $make_dirs{dirname ($iter)} = 1;
6985 }
6986 }
6987 $make_dirs_set = 1;
6988 }
6989 return defined $make_dirs{$dir};
6990 }
6992 ################################################################
6994 # Find the aux dir. This should match the algorithm used by
6995 # ./configure. (See the Autoconf documentation for for
6996 # AC_CONFIG_AUX_DIR.)
6997 sub locate_aux_dir ()
6998 {
6999 if (! $config_aux_dir_set_in_configure_ac)
7000 {
7001 # The default auxiliary directory is the first
7002 # of ., .., or ../.. that contains install-sh.
7003 # Assume . if install-sh doesn't exist yet.
7004 for my $dir (qw (. .. ../..))
7005 {
7006 if (-f "$dir/install-sh")
7007 {
7008 $config_aux_dir = $dir;
7009 last;
7010 }
7011 }
7012 $config_aux_dir = '.' unless $config_aux_dir;
7013 }
7014 # Avoid unsightly '/.'s.
7015 $am_config_aux_dir =
7016 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7017 $am_config_aux_dir =~ s,/*$,,;
7018 }
7021 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7022 # --------------------------------------------------
7023 # See if we want to push this file onto dist_common. This function
7024 # encodes the rules for deciding when to do so.
7025 sub maybe_push_required_file
7026 {
7027 my ($dir, $file, $fullfile) = @_;
7029 if ($dir eq $relative_dir)
7030 {
7031 push_dist_common ($file);
7032 return 1;
7033 }
7034 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7035 {
7036 # If we are doing the topmost directory, and the file is in a
7037 # subdir which does not have a Makefile, then we distribute it
7038 # here.
7040 # If a required file is above the source tree, it is important
7041 # to prefix it with `$(srcdir)' so that no VPATH search is
7042 # performed. Otherwise problems occur with Make implementations
7043 # that rewrite and simplify rules whose dependencies are found in a
7044 # VPATH location. Here is an example with OSF1/Tru64 Make.
7045 #
7046 # % cat Makefile
7047 # VPATH = sub
7048 # distdir: ../a
7049 # echo ../a
7050 # % ls
7051 # Makefile a
7052 # % make
7053 # echo a
7054 # a
7055 #
7056 # Dependency `../a' was found in `sub/../a', but this make
7057 # implementation simplified it as `a'. (Note that the sub/
7058 # directory does not even exist.)
7059 #
7060 # This kind of VPATH rewriting seems hard to cancel. The
7061 # distdir.am hack against VPATH rewriting works only when no
7062 # simplification is done, i.e., for dependencies which are in
7063 # subdirectories, not in enclosing directories. Hence, in
7064 # the latter case we use a full path to make sure no VPATH
7065 # search occurs.
7066 $fullfile = '$(srcdir)/' . $fullfile
7067 if $dir =~ m,^\.\.(?:$|/),;
7069 push_dist_common ($fullfile);
7070 return 1;
7071 }
7072 return 0;
7073 }
7076 # If a file name appears as a key in this hash, then it has already
7077 # been checked for. This allows us not to report the same error more
7078 # than once.
7079 my %required_file_not_found = ();
7081 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7082 # --------------------------------------------------------------
7083 # Verify that the file must exist in $DIRECTORY, or install it.
7084 # $MYSTRICT is the strictness level at which this file becomes required.
7085 sub require_file_internal ($$$@)
7086 {
7087 my ($where, $mystrict, $dir, @files) = @_;
7089 foreach my $file (@files)
7090 {
7091 my $fullfile = "$dir/$file";
7092 my $found_it = 0;
7093 my $dangling_sym = 0;
7095 if (-l $fullfile && ! -f $fullfile)
7096 {
7097 $dangling_sym = 1;
7098 }
7099 elsif (dir_has_case_matching_file ($dir, $file))
7100 {
7101 $found_it = 1;
7102 maybe_push_required_file ($dir, $file, $fullfile);
7103 }
7105 # `--force-missing' only has an effect if `--add-missing' is
7106 # specified.
7107 if ($found_it && (! $add_missing || ! $force_missing))
7108 {
7109 next;
7110 }
7111 else
7112 {
7113 # If we've already looked for it, we're done. You might
7114 # wonder why we don't do this before searching for the
7115 # file. If we do that, then something like
7116 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7117 # DIST_COMMON.
7118 if (! $found_it)
7119 {
7120 next if defined $required_file_not_found{$fullfile};
7121 $required_file_not_found{$fullfile} = 1;
7122 }
7124 if ($strictness >= $mystrict)
7125 {
7126 if ($dangling_sym && $add_missing)
7127 {
7128 unlink ($fullfile);
7129 }
7131 my $trailer = '';
7132 my $suppress = 0;
7134 # Only install missing files according to our desired
7135 # strictness level.
7136 my $message = "required file `$fullfile' not found";
7137 if ($add_missing)
7138 {
7139 if (-f "$libdir/$file")
7140 {
7141 $suppress = 1;
7143 # Install the missing file. Symlink if we
7144 # can, copy if we must. Note: delete the file
7145 # first, in case it is a dangling symlink.
7146 $message = "installing `$fullfile'";
7147 # Windows Perl will hang if we try to delete a
7148 # file that doesn't exist.
7149 unlink ($fullfile) if -f $fullfile;
7150 if ($symlink_exists && ! $copy_missing)
7151 {
7152 if (! symlink ("$libdir/$file", $fullfile))
7153 {
7154 $suppress = 0;
7155 $trailer = "; error while making link: $!";
7156 }
7157 }
7158 elsif (system ('cp', "$libdir/$file", $fullfile))
7159 {
7160 $suppress = 0;
7161 $trailer = "\n error while copying";
7162 }
7163 reset_dir_cache ($dir);
7164 }
7166 if (! maybe_push_required_file (dirname ($fullfile),
7167 $file, $fullfile))
7168 {
7169 if (! $found_it && ! $automake_will_process_aux_dir)
7170 {
7171 # We have added the file but could not push it
7172 # into DIST_COMMON, probably because this is
7173 # an auxiliary file and we are not processing
7174 # the top level Makefile. Furthermore Automake
7175 # hasn't been asked to create the Makefile.in
7176 # that distribute the aux dir files.
7177 error ($where, 'Please make a full run of automake'
7178 . " so $fullfile gets distributed.");
7179 }
7180 }
7181 }
7182 else
7183 {
7184 $trailer = "\n `automake --add-missing' can install `$file'"
7185 if -f "$libdir/$file";
7186 }
7188 # If --force-missing was specified, and we have
7189 # actually found the file, then do nothing.
7190 next
7191 if $found_it && $force_missing;
7193 # If we couldn' install the file, but it is a target in
7194 # the Makefile, don't print anything. This allows files
7195 # like README, AUTHORS, or THANKS to be generated.
7196 next
7197 if !$suppress && rule $file;
7199 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
7200 }
7201 }
7202 }
7203 }
7205 # &require_file ($WHERE, $MYSTRICT, @FILES)
7206 # -----------------------------------------
7207 sub require_file ($$@)
7208 {
7209 my ($where, $mystrict, @files) = @_;
7210 require_file_internal ($where, $mystrict, $relative_dir, @files);
7211 }
7213 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7214 # -----------------------------------------------------------
7215 sub require_file_with_macro ($$$@)
7216 {
7217 my ($cond, $macro, $mystrict, @files) = @_;
7218 $macro = rvar ($macro) unless ref $macro;
7219 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7220 }
7222 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7223 # ----------------------------------------------------------------
7224 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7225 # must be in that directory. Otherwise expect it in the current directory.
7226 sub require_libsource_with_macro ($$$@)
7227 {
7228 my ($cond, $macro, $mystrict, @files) = @_;
7229 $macro = rvar ($macro) unless ref $macro;
7230 if ($config_libobj_dir)
7231 {
7232 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7233 $config_libobj_dir, @files);
7234 }
7235 else
7236 {
7237 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7238 }
7239 }
7241 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7242 # ----------------------------------------------
7243 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7244 sub require_conf_file ($$@)
7245 {
7246 my ($where, $mystrict, @files) = @_;
7247 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7248 }
7251 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7252 # ----------------------------------------------------------------
7253 sub require_conf_file_with_macro ($$$@)
7254 {
7255 my ($cond, $macro, $mystrict, @files) = @_;
7256 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7257 $mystrict, @files);
7258 }
7260 ################################################################
7262 # &require_build_directory ($DIRECTORY)
7263 # ------------------------------------
7264 # Emit rules to create $DIRECTORY if needed, and return
7265 # the file that any target requiring this directory should be made
7266 # dependent upon.
7267 # We don't want to emit the rule twice, and want to reuse it
7268 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7269 sub require_build_directory ($)
7270 {
7271 my $directory = shift;
7273 return $directory_map{$directory} if exists $directory_map{$directory};
7275 my $cdir = File::Spec->canonpath ($directory);
7277 if (exists $directory_map{$cdir})
7278 {
7279 my $stamp = $directory_map{$cdir};
7280 $directory_map{$directory} = $stamp;
7281 return $stamp;
7282 }
7284 my $dirstamp = "$cdir/\$(am__dirstamp)";
7286 $directory_map{$directory} = $dirstamp;
7287 $directory_map{$cdir} = $dirstamp;
7289 # Set a variable for the dirstamp basename.
7290 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7291 '$(am__leading_dot)dirstamp');
7293 # Directory must be removed by `make distclean'.
7294 $clean_files{$dirstamp} = DIST_CLEAN;
7296 $output_rules .= ("$dirstamp:\n"
7297 . "\t\@\$(MKDIR_P) $directory\n"
7298 . "\t\@: > $dirstamp\n");
7300 return $dirstamp;
7301 }
7303 # &require_build_directory_maybe ($FILE)
7304 # --------------------------------------
7305 # If $FILE lies in a subdirectory, emit a rule to create this
7306 # directory and return the file that $FILE should be made
7307 # dependent upon. Otherwise, just return the empty string.
7308 sub require_build_directory_maybe ($)
7309 {
7310 my $file = shift;
7311 my $directory = dirname ($file);
7313 if ($directory ne '.')
7314 {
7315 return require_build_directory ($directory);
7316 }
7317 else
7318 {
7319 return '';
7320 }
7321 }
7323 ################################################################
7325 # Push a list of files onto dist_common.
7326 sub push_dist_common
7327 {
7328 prog_error "push_dist_common run after handle_dist"
7329 if $handle_dist_run;
7330 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7331 '', INTERNAL, VAR_PRETTY);
7332 }
7335 ################################################################
7337 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7338 # ----------------------------------------------
7339 # Generate a Makefile.in given the name of the corresponding Makefile and
7340 # the name of the file output by config.status.
7341 sub generate_makefile ($$)
7342 {
7343 my ($makefile_am, $makefile_in) = @_;
7345 # Reset all the Makefile.am related variables.
7346 initialize_per_input;
7348 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7349 # warnings for this file. So hold any warning issued before
7350 # we have processed AUTOMAKE_OPTIONS.
7351 buffer_messages ('warning');
7353 # Name of input file ("Makefile.am") and output file
7354 # ("Makefile.in"). These have no directory components.
7355 $am_file_name = basename ($makefile_am);
7356 $in_file_name = basename ($makefile_in);
7358 # $OUTPUT is encoded. If it contains a ":" then the first element
7359 # is the real output file, and all remaining elements are input
7360 # files. We don't scan or otherwise deal with these input files,
7361 # other than to mark them as dependencies. See
7362 # &scan_autoconf_files for details.
7363 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7365 $relative_dir = dirname ($makefile);
7366 $am_relative_dir = dirname ($makefile_am);
7367 $topsrcdir = backname ($relative_dir);
7369 read_main_am_file ($makefile_am);
7370 if (handle_options)
7371 {
7372 # Process buffered warnings.
7373 flush_messages;
7374 # Fatal error. Just return, so we can continue with next file.
7375 return;
7376 }
7377 # Process buffered warnings.
7378 flush_messages;
7380 # There are a few install-related variables that you should not define.
7381 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7382 {
7383 my $v = var $var;
7384 if ($v)
7385 {
7386 my $def = $v->def (TRUE);
7387 prog_error "$var not defined in condition TRUE"
7388 unless $def;
7389 reject_var $var, "`$var' should not be defined"
7390 if $def->owner != VAR_AUTOMAKE;
7391 }
7392 }
7394 # Catch some obsolete variables.
7395 msg_var ('obsolete', 'INCLUDES',
7396 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
7397 if var ('INCLUDES');
7399 # Must do this after reading .am file.
7400 define_variable ('subdir', $relative_dir, INTERNAL);
7402 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7403 # recursive rules are enabled.
7404 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7405 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7407 # Check first, because we might modify some state.
7408 check_cygnus;
7409 check_gnu_standards;
7410 check_gnits_standards;
7412 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7413 handle_gettext;
7414 handle_libraries;
7415 handle_ltlibraries;
7416 handle_programs;
7417 handle_scripts;
7419 # These must be run after all the sources are scanned. They
7420 # use variables defined by &handle_libraries, &handle_ltlibraries,
7421 # or &handle_programs.
7422 handle_compile;
7423 handle_languages;
7424 handle_libtool;
7426 # Variables used by distdir.am and tags.am.
7427 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7428 if (! option 'no-dist')
7429 {
7430 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7431 }
7433 handle_multilib;
7434 handle_texinfo;
7435 handle_emacs_lisp;
7436 handle_python;
7437 handle_java;
7438 handle_man_pages;
7439 handle_data;
7440 handle_headers;
7441 handle_subdirs;
7442 handle_tags;
7443 handle_minor_options;
7444 # Must come after handle_programs so that %known_programs is up-to-date.
7445 handle_tests;
7447 # This must come after most other rules.
7448 handle_dist;
7450 handle_footer;
7451 do_check_merge_target;
7452 handle_all ($makefile);
7454 # FIXME: Gross!
7455 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7456 {
7457 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7458 }
7460 handle_install;
7461 handle_clean ($makefile);
7462 handle_factored_dependencies;
7464 # Comes last, because all the above procedures may have
7465 # defined or overridden variables.
7466 $output_vars .= output_variables;
7468 check_typos;
7470 my ($out_file) = $output_directory . '/' . $makefile_in;
7472 if ($exit_code != 0)
7473 {
7474 verb "not writing $out_file because of earlier errors";
7475 return;
7476 }
7478 if (! -d ($output_directory . '/' . $am_relative_dir))
7479 {
7480 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
7481 }
7483 # We make sure that `all:' is the first target.
7484 my $output =
7485 "$output_vars$output_all$output_header$output_rules$output_trailer";
7487 # Decide whether we must update the output file or not.
7488 # We have to update in the following situations.
7489 # * $force_generation is set.
7490 # * any of the output dependencies is younger than the output
7491 # * the contents of the output is different (this can happen
7492 # if the project has been populated with a file listed in
7493 # @common_files since the last run).
7494 # Output's dependencies are split in two sets:
7495 # * dependencies which are also configure dependencies
7496 # These do not change between each Makefile.am
7497 # * other dependencies, specific to the Makefile.am being processed
7498 # (such as the Makefile.am itself, or any Makefile fragment
7499 # it includes).
7500 my $timestamp = mtime $out_file;
7501 if (! $force_generation
7502 && $configure_deps_greatest_timestamp < $timestamp
7503 && $output_deps_greatest_timestamp < $timestamp
7504 && $output eq contents ($out_file))
7505 {
7506 verb "$out_file unchanged";
7507 # No need to update.
7508 return;
7509 }
7511 if (-e $out_file)
7512 {
7513 unlink ($out_file)
7514 or fatal "cannot remove $out_file: $!\n";
7515 }
7517 my $gm_file = new Automake::XFile "> $out_file";
7518 verb "creating $out_file";
7519 print $gm_file $output;
7520 }
7522 ################################################################
7527 ################################################################
7529 # Print usage information.
7530 sub usage ()
7531 {
7532 print "Usage: $0 [OPTION] ... [Makefile]...
7534 Generate Makefile.in for configure from Makefile.am.
7536 Operation modes:
7537 --help print this help, then exit
7538 --version print version number, then exit
7539 -v, --verbose verbosely list files processed
7540 --no-force only update Makefile.in's that are out of date
7541 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
7543 Dependency tracking:
7544 -i, --ignore-deps disable dependency tracking code
7545 --include-deps enable dependency tracking code
7547 Flavors:
7548 --cygnus assume program is part of Cygnus-style tree
7549 --foreign set strictness to foreign
7550 --gnits set strictness to gnits
7551 --gnu set strictness to gnu
7553 Library files:
7554 -a, --add-missing add missing standard files to package
7555 --libdir=DIR directory storing library files
7556 -c, --copy with -a, copy missing files (default is symlink)
7557 -f, --force-missing force update of standard files
7559 ";
7560 Automake::ChannelDefs::usage;
7562 my ($last, @lcomm);
7563 $last = '';
7564 foreach my $iter (sort ((@common_files, @common_sometimes)))
7565 {
7566 push (@lcomm, $iter) unless $iter eq $last;
7567 $last = $iter;
7568 }
7570 my @four;
7571 print "\nFiles which are automatically distributed, if found:\n";
7572 format USAGE_FORMAT =
7573 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7574 $four[0], $four[1], $four[2], $four[3]
7575 .
7576 $~ = "USAGE_FORMAT";
7578 my $cols = 4;
7579 my $rows = int(@lcomm / $cols);
7580 my $rest = @lcomm % $cols;
7582 if ($rest)
7583 {
7584 $rows++;
7585 }
7586 else
7587 {
7588 $rest = $cols;
7589 }
7591 for (my $y = 0; $y < $rows; $y++)
7592 {
7593 @four = ("", "", "", "");
7594 for (my $x = 0; $x < $cols; $x++)
7595 {
7596 last if $y + 1 == $rows && $x == $rest;
7598 my $idx = (($x > $rest)
7599 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
7600 : ($rows * $x));
7602 $idx += $y;
7603 $four[$x] = $lcomm[$idx];
7604 }
7605 write;
7606 }
7608 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
7610 # --help always returns 0 per GNU standards.
7611 exit 0;
7612 }
7615 # &version ()
7616 # -----------
7617 # Print version information
7618 sub version ()
7619 {
7620 print <<EOF;
7621 automake (GNU $PACKAGE) $VERSION
7622 Written by Tom Tromey <tromey\@redhat.com>
7623 and Alexandre Duret-Lutz <adl\@gnu.org>.
7625 Copyright 2006 Free Software Foundation, Inc.
7626 This is free software; see the source for copying conditions. There is NO
7627 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7628 EOF
7629 # --version always returns 0 per GNU standards.
7630 exit 0;
7631 }
7633 ################################################################
7635 # Parse command line.
7636 sub parse_arguments ()
7637 {
7638 # Start off as gnu.
7639 set_strictness ('gnu');
7641 my $cli_where = new Automake::Location;
7642 my %cli_options =
7643 (
7644 'libdir=s' => \$libdir,
7645 'gnu' => sub { set_strictness ('gnu'); },
7646 'gnits' => sub { set_strictness ('gnits'); },
7647 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
7648 'foreign' => sub { set_strictness ('foreign'); },
7649 'include-deps' => sub { unset_global_option ('no-dependencies'); },
7650 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
7651 $cli_where); },
7652 'no-force' => sub { $force_generation = 0; },
7653 'f|force-missing' => \$force_missing,
7654 'o|output-dir=s' => \$output_directory,
7655 'a|add-missing' => \$add_missing,
7656 'c|copy' => \$copy_missing,
7657 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
7658 'W|warnings=s' => \&parse_warnings,
7659 # These long options (--Werror and --Wno-error) for backward
7660 # compatibility. Use -Werror and -Wno-error today.
7661 'Werror' => sub { parse_warnings 'W', 'error'; },
7662 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
7663 );
7664 use Getopt::Long;
7665 Getopt::Long::config ("bundling", "pass_through");
7667 # See if --version or --help is used. We want to process these before
7668 # anything else because the GNU Coding Standards require us to
7669 # `exit 0' after processing these options, and we can't guarantee this
7670 # if we treat other options first. (Handling other options first
7671 # could produce error diagnostics, and in this condition it is
7672 # confusing if Automake does `exit 0'.)
7673 my %cli_options_1st_pass =
7674 (
7675 'version' => \&version,
7676 'help' => \&usage,
7677 # Recognize all other options (and their arguments) but do nothing.
7678 map { $_ => sub {} } (keys %cli_options)
7679 );
7680 my @ARGV_backup = @ARGV;
7681 Getopt::Long::GetOptions %cli_options_1st_pass
7682 or exit 1;
7683 @ARGV = @ARGV_backup;
7685 # Now *really* process the options. This time we know that --help
7686 # and --version are not present, but we specify them nonetheless so
7687 # that ambiguous abbreviation are diagnosed.
7688 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
7689 or exit 1;
7691 if (defined $output_directory)
7692 {
7693 msg 'obsolete', "`--output-dir' is deprecated\n";
7694 }
7695 else
7696 {
7697 # In the next release we'll remove this entirely.
7698 $output_directory = '.';
7699 }
7701 return unless @ARGV;
7703 if ($ARGV[0] =~ /^-./)
7704 {
7705 my %argopts;
7706 for my $k (keys %cli_options)
7707 {
7708 if ($k =~ /(.*)=s$/)
7709 {
7710 map { $argopts{(length ($_) == 1)
7711 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
7712 }
7713 }
7714 if ($ARGV[0] eq '--')
7715 {
7716 shift @ARGV;
7717 }
7718 elsif (exists $argopts{$ARGV[0]})
7719 {
7720 fatal ("option `$ARGV[0]' requires an argument\n"
7721 . "Try `$0 --help' for more information.");
7722 }
7723 else
7724 {
7725 fatal ("unrecognized option `$ARGV[0]'.\n"
7726 . "Try `$0 --help' for more information.");
7727 }
7728 }
7730 my $errspec = 0;
7731 foreach my $arg (@ARGV)
7732 {
7733 fatal ("empty argument\nTry `$0 --help' for more information.")
7734 if ($arg eq '');
7736 # Handle $local:$input syntax.
7737 my ($local, @rest) = split (/:/, $arg);
7738 @rest = ("$local.in",) unless @rest;
7739 my $input = locate_am @rest;
7740 if ($input)
7741 {
7742 push @input_files, $input;
7743 $output_files{$input} = join (':', ($local, @rest));
7744 }
7745 else
7746 {
7747 error "no Automake input file found for `$arg'";
7748 $errspec = 1;
7749 }
7750 }
7751 fatal "no input file found among supplied arguments"
7752 if $errspec && ! @input_files;
7753 }
7755 ################################################################
7757 # Parse the WARNINGS environment variable.
7758 parse_WARNINGS;
7760 # Parse command line.
7761 parse_arguments;
7763 $configure_ac = require_configure_ac;
7765 # Do configure.ac scan only once.
7766 scan_autoconf_files;
7768 if (! @input_files)
7769 {
7770 my $msg = '';
7771 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
7772 if -f 'Makefile.am';
7773 fatal ("no `Makefile.am' found for any configure output$msg");
7774 }
7776 # Now do all the work on each file.
7777 foreach my $file (@input_files)
7778 {
7779 ($am_file = $file) =~ s/\.in$//;
7780 if (! -f ($am_file . '.am'))
7781 {
7782 error "`$am_file.am' does not exist";
7783 }
7784 else
7785 {
7786 # Any warning setting now local to this Makefile.am.
7787 dup_channel_setup;
7789 generate_makefile ($am_file . '.am', $file);
7791 # Back out any warning setting.
7792 drop_channel_setup;
7793 }
7794 }
7796 exit $exit_code;
7799 ### Setup "GNU" style for perl-mode and cperl-mode.
7800 ## Local Variables:
7801 ## perl-indent-level: 2
7802 ## perl-continued-statement-offset: 2
7803 ## perl-continued-brace-offset: 0
7804 ## perl-brace-offset: 0
7805 ## perl-brace-imaginary-offset: 0
7806 ## perl-label-offset: -2
7807 ## cperl-indent-level: 2
7808 ## cperl-brace-offset: 0
7809 ## cperl-continued-brace-offset: 0
7810 ## cperl-label-offset: -2
7811 ## cperl-extra-newline-before-brace: t
7812 ## cperl-merge-trailing-else: nil
7813 ## cperl-continued-statement-offset: 2
7814 ## End: