5 eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
8 # automake - create Makefile.in from Makefile.am
9 # Copyright (C) 1994-2012 Free Software Foundation, Inc.
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2, or (at your option)
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program. If not, see <http://www.gnu.org/licenses/>.
24 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
25 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
26 # Alexandre Duret-Lutz <adl@gnu.org>.
32 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
33 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
35 # Override SHELL. This is required on DJGPP so that system() uses
36 # bash, not COMMAND.COM which doesn't quote arguments properly.
37 # Other systems aren't expected to use $SHELL when Automake
38 # runs, but it should be safe to drop the "if DJGPP" guard if
39 # it turns up other systems need the same thing. After all,
40 # if SHELL is used, ./configure's SHELL is always better than
41 # the user's SHELL (which may be something like tcsh).
42 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
46 Class::Struct::struct (
47 # Short name of the language (c, f77...).
49 # Nice name of the language (C, Fortran 77...).
52 # List of configure variables which must be defined.
55 # 'pure' is '1' or ''. A 'pure' language is one where, if
56 # all the files in a directory are of that language, then we
57 # do not require the C compiler or any code to call it.
62 # Name of the compiling variable (COMPILE).
64 # Content of the compiling variable.
66 # Flag to require compilation without linking (-c).
67 'compile_flag' => "\$",
69 # A subroutine to compute a list of possible extensions of
70 # the product given the input extensions.
71 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
72 'output_extensions' => "\$",
73 # A list of flag variables used in 'compile'.
77 # Any tag to pass to libtool while compiling.
78 'libtool_tag' => "\$",
80 # The file to use when generating rules for this language.
81 # The default is 'depend2'.
84 # Name of the linking variable (LINK).
86 # Content of the linking variable.
89 # Name of the compiler variable (CC).
92 # Name of the linker variable (LD).
94 # Content of the linker variable ($(CC)).
97 # Flag to specify the output file (-o).
98 'output_flag' => "\$",
101 # This is a subroutine which is called whenever we finally
102 # determine the context in which a source file will be
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' => "\$");
114 if (defined $self->_finish)
116 &{$self->_finish} (@_);
120 sub target_hook ($$$$%)
123 if (defined $self->_target_hook)
125 &{$self->_target_hook} (@_);
132 use Automake::Config;
139 require Thread::Queue;
140 import Thread::Queue;
143 use Automake::General;
145 use Automake::Channels;
146 use Automake::ChannelDefs;
147 use Automake::Configure_ac;
148 use Automake::FileUtils;
149 use Automake::Location;
150 use Automake::Condition qw/TRUE FALSE/;
151 use Automake::DisjConditions;
152 use Automake::Options;
153 use Automake::Variable;
154 use Automake::VarDef;
156 use Automake::RuleDef;
157 use Automake::Wrap 'makefile_wrap';
166 # Some regular expressions. One reason to put them here is that it
167 # makes indentation work better in Emacs.
169 # Writing singled-quoted-$-terminated regexes is a pain because
170 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
171 # by a closing quote. Letting perl-mode think the quote is not closed
172 # leads to all sort of misindentations. On the other hand, defining
173 # regexes as double-quoted strings is far less readable. So usually
176 # $REGEX = '^regex_value' . "\$";
178 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
179 my $WHITE_PATTERN = '^\s*' . "\$";
180 my $COMMENT_PATTERN = '^#';
181 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
182 # A rule has three parts: a list of targets, a list of dependencies,
183 # and optionally actions.
185 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
187 # Only recognize leading spaces, not leading tabs. If we recognize
188 # leading tabs here then we need to make the reader smarter, because
189 # otherwise it will think rules like 'foo=bar; \' are errors.
190 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
191 # This pattern recognizes a Gnits version id and sets $1 if the
192 # release is an alpha release. We also allow a suffix which can be
193 # used to extend the version number with a "fork" identifier.
194 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
196 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
198 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
200 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
201 my $PATH_PATTERN = '(\w|[+/.-])+';
202 # This will pass through anything not of the prescribed form.
203 my $INCLUDE_PATTERN = ('^include\s+'
204 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
205 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
206 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
208 # Directories installed during 'install-exec' phase.
209 my $EXEC_DIR_PATTERN =
210 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
212 # Values for AC_CANONICAL_*
213 use constant AC_CANONICAL_BUILD => 1;
214 use constant AC_CANONICAL_HOST => 2;
215 use constant AC_CANONICAL_TARGET => 3;
217 # Values indicating when something should be cleaned.
218 use constant MOSTLY_CLEAN => 0;
219 use constant CLEAN => 1;
220 use constant DIST_CLEAN => 2;
221 use constant MAINTAINER_CLEAN => 3;
224 my @libtool_files = qw(ltmain.sh config.guess config.sub);
225 # ltconfig appears here for compatibility with old versions of libtool.
226 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
228 # Commonly found files we look for and automatically include in
231 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
232 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
233 ar-lib compile config.guess config.rpath
234 config.sub depcomp elisp-comp install-sh libversion.in mdate-sh
235 missing mkinstalldirs py-compile texinfo.tex ylwrap),
236 @libtool_files, @libtool_sometimes);
238 # Commonly used files we auto-include, but only sometimes. This list
239 # is used for the --help output only.
240 my @common_sometimes =
241 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
242 configure.ac configure.in stamp-vti);
244 # Standard directories from the GNU Coding Standards, and additional
245 # pkg* directories from Automake. Stored in a hash for fast member check.
246 my %standard_prefix =
247 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
248 lib libexec lisp locale localstate man man1 man2
249 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
250 pkgdata pkginclude pkglib pkglibexec ps sbin
251 sharedstate sysconf));
253 # Copyright on generated Makefile.ins.
254 my $gen_copyright = "\
255 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
257 # This Makefile.in is free software; the Free Software Foundation
258 # gives unlimited permission to copy and/or distribute it,
259 # with or without modifications, as long as this notice is preserved.
261 # This program is distributed in the hope that it will be useful,
262 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
263 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
264 # PARTICULAR PURPOSE.
267 # These constants are returned by the lang_*_rewrite functions.
268 # LANG_SUBDIR means that the resulting object file should be in a
269 # subdir if the source file is. In this case the file name cannot
270 # have '..' components.
271 use constant LANG_IGNORE => 0;
272 use constant LANG_PROCESS => 1;
273 use constant LANG_SUBDIR => 2;
275 # These are used when keeping track of whether an object can be built
276 # by two different paths.
277 use constant COMPILE_LIBTOOL => 1;
278 use constant COMPILE_ORDINARY => 2;
280 # We can't always associate a location to a variable or a rule,
281 # when it's defined by Automake. We use INTERNAL in this case.
282 use constant INTERNAL => new Automake::Location;
284 # Serialization keys for message queues.
285 use constant QUEUE_MESSAGE => "msg";
286 use constant QUEUE_CONF_FILE => "conf file";
287 use constant QUEUE_LOCATION => "location";
288 use constant QUEUE_STRING => "string";
290 ## ---------------------------------- ##
291 ## Variables related to the options. ##
292 ## ---------------------------------- ##
294 # TRUE if we should always generate Makefile.in.
295 my $force_generation = 1;
297 # From the Perl manual.
298 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
300 # TRUE if missing standard files should be installed.
303 # TRUE if we should copy missing files; otherwise symlink if possible.
304 my $copy_missing = 0;
306 # TRUE if we should always update files that we know about.
307 my $force_missing = 0;
310 ## ---------------------------------------- ##
311 ## Variables filled during files scanning. ##
312 ## ---------------------------------------- ##
314 # Name of the configure.ac file.
317 # Files found by scanning configure.ac for LIBOBJS.
320 # Names used in AC_CONFIG_HEADER call.
321 my @config_headers = ();
323 # Names used in AC_CONFIG_LINKS call.
324 my @config_links = ();
326 # List of Makefile.am's to process, and their corresponding outputs.
327 my @input_files = ();
328 my %output_files = ();
330 # Complete list of Makefile.am's that exist.
331 my @configure_input_files = ();
333 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
335 my @other_input_files = ();
336 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
337 # The keys are the files created by these macros.
338 my %ac_config_files_location = ();
339 # The condition under which AC_CONFIG_FOOS appears.
340 my %ac_config_files_condition = ();
342 # Directory to search for configure-required files. This
343 # will be computed by &locate_aux_dir and can be set using
344 # AC_CONFIG_AUX_DIR in configure.ac.
345 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
346 my $config_aux_dir = '';
347 my $config_aux_dir_set_in_configure_ac = 0;
348 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
350 my $am_config_aux_dir = '';
352 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
354 my $config_libobj_dir = '';
356 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
357 my $seen_gettext = 0;
358 # Whether AM_GNU_GETTEXT([external]) is used.
359 my $seen_gettext_external = 0;
360 # Where AM_GNU_GETTEXT appears.
361 my $ac_gettext_location;
362 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
363 my $seen_gettext_intl = 0;
365 # Lists of tags supported by Libtool.
366 my %libtool_tags = ();
367 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
368 # uses AC_REQUIRE_AUX_FILE.
369 my $libtool_new_api = 0;
371 # Most important AC_CANONICAL_* macro seen so far.
372 my $seen_canonical = 0;
373 # Location of that macro.
374 my $canonical_location;
376 # Where AM_MAINTAINER_MODE appears.
379 # Actual version we've seen.
380 my $package_version = '';
382 # Where version is defined.
383 my $package_version_location;
385 # TRUE if we've seen AM_PROG_AR
388 # TRUE if we've seen AM_PROG_CC_C_O
391 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
392 my %required_aux_file = ();
394 # Where AM_INIT_AUTOMAKE is called;
395 my $seen_init_automake = 0;
397 # TRUE if we've seen AM_AUTOMAKE_VERSION.
398 my $seen_automake_version = 0;
400 # Hash table of discovered configure substitutions. Keys are names,
401 # values are 'FILE:LINE' strings which are used by error message
403 my %configure_vars = ();
405 # Ignored configure substitutions (i.e., variables not to be output in
407 my %ignored_configure_vars = ();
409 # Files included by $configure_ac.
410 my @configure_deps = ();
412 # Greatest timestamp of configure's dependencies.
413 my $configure_deps_greatest_timestamp = 0;
415 # Hash table of AM_CONDITIONAL variables seen in configure.
416 my %configure_cond = ();
418 # This maps extensions onto language names.
419 my %extension_map = ();
421 # List of the DIST_COMMON files we discovered while reading
423 my $configure_dist_common = '';
425 # This maps languages names onto objects.
427 # Maps each linker variable onto a language object.
428 my %link_languages = ();
430 # maps extensions to needed source flags.
431 my %sourceflags = ();
433 # List of targets we must always output.
434 # FIXME: Complete, and remove falsely required targets.
435 my %required_targets =
448 # FIXME: Not required, temporary hacks.
449 # Well, actually they are sort of required: the -recursive
450 # targets will run them anyway...
456 'install-data-am' => 1,
457 'install-exec-am' => 1,
458 'install-html-am' => 1,
459 'install-dvi-am' => 1,
460 'install-pdf-am' => 1,
461 'install-ps-am' => 1,
462 'install-info-am' => 1,
463 'installcheck-am' => 1,
469 # Queue to push require_conf_file requirements to.
470 my $required_conf_file_queue;
472 # The name of the Makefile currently being processed.
475 ################################################################
477 ## ------------------------------------------ ##
478 ## Variables reset by &initialize_per_input. ##
479 ## ------------------------------------------ ##
481 # Basename and relative dir of the input file.
485 # Same but wrt Makefile.in.
489 # Relative path to the top directory.
492 # Greatest timestamp of the output's dependencies (excluding
493 # configure's dependencies).
494 my $output_deps_greatest_timestamp;
496 # These variables are used when generating each Makefile.in.
497 # They hold the Makefile.in until it is ready to be printed.
504 # This is the conditional stack, updated on if/else/endif, and
505 # used to build Condition objects.
508 # This holds the set of included files.
511 # List of dependencies for the obvious targets.
516 # Keys in this hash table are files to delete. The associated
517 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
520 # Keys in this hash table are object files or other files in
521 # subdirectories which need to be removed. This only holds files
522 # which are created by compilations. The value in the hash indicates
523 # when the file should be removed.
524 my %compile_clean_files;
526 # Keys in this hash table are directories where we expect to build a
527 # libtool object. We use this information to decide what directories
529 my %libtool_clean_directories;
531 # Value of $(SOURCES), used by tags.am.
533 # Sources which go in the distribution.
536 # This hash maps object file names onto their corresponding source
537 # file names. This is used to ensure that each object is created
538 # by a single source file.
541 # This hash maps object file names onto an integer value representing
542 # whether this object has been built via ordinary compilation or
543 # libtool compilation (the COMPILE_* constants).
544 my %object_compilation_map;
547 # This keeps track of the directories for which we've already
548 # created dirstamp code. Keys are directories, values are stamp files.
549 # Several keys can share the same stamp files if they are equivalent
550 # (as are './/foo' and 'foo').
556 # This is a list of all targets to run during "make dist".
559 # Keep track of all programs declared in this Makefile, without
560 # $(EXEEXT). @substitutions@ are not listed.
564 # This keeps track of which extensions we've seen (that we care
568 # This is random scratch space for the language finish functions.
569 # Don't randomly overwrite it; examine other uses of keys first.
570 my %language_scratch;
572 # We keep track of which objects need special (per-executable)
573 # handling on a per-language basis.
574 my %lang_specific_files;
576 # This is set when 'handle_dist' has finished. Once this happens,
577 # we should no longer push on dist_common.
580 # Used to store a set of linkers needed to generate the sources currently
581 # under consideration.
584 # True if we need 'LINK' defined. This is a hack.
587 # Does the generated Makefile have to build some compiled object
588 # (for binary programs, or plain or libtool libraries)?
589 my $must_handle_compiled_objects;
591 # Record each file processed by make_paragraphs.
592 my %transformed_files;
594 ################################################################
596 ## ---------------------------------------------- ##
597 ## Variables not reset by &initialize_per_input. ##
598 ## ---------------------------------------------- ##
600 # Cache each file processed by make_paragraphs.
601 # (This is different from %transformed_files because
602 # %transformed_files is reset for each file while %am_file_cache
603 # it global to the run.)
606 ################################################################
608 # var_SUFFIXES_trigger ($TYPE, $VALUE)
609 # ------------------------------------
610 # This is called by Automake::Variable::define() when SUFFIXES
611 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
612 # The work here needs to be performed as a side-effect of the
613 # macro_define() call because SUFFIXES definitions impact
614 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
616 sub var_SUFFIXES_trigger ($$)
618 my ($type, $value) = @_;
619 accept_extensions (split (' ', $value));
621 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
623 ################################################################
625 ## --------------------------------- ##
626 ## Forward subroutine declarations. ##
627 ## --------------------------------- ##
628 sub register_language (%);
629 sub file_contents_internal ($$$%);
630 sub define_files_variable ($\@$$);
633 # &initialize_per_input ()
634 # ------------------------
635 # (Re)-Initialize per-Makefile.am variables.
636 sub initialize_per_input ()
638 reset_local_duplicates ();
640 $am_file_name = undef;
641 $am_relative_dir = undef;
643 $in_file_name = undef;
644 $relative_dir = undef;
647 $output_deps_greatest_timestamp = 0;
653 $output_trailer = '';
655 Automake::Options::reset;
656 Automake::Variable::reset;
657 Automake::Rule::reset;
668 %compile_clean_files = ();
670 # We always include '.'. This isn't strictly correct.
671 %libtool_clean_directories = ('.' => 1);
677 %object_compilation_map = ();
685 %known_programs = ();
686 %known_libraries= ();
688 %extension_seen = ();
690 %language_scratch = ();
692 %lang_specific_files = ();
694 $handle_dist_run = 0;
698 $must_handle_compiled_objects = 0;
700 %transformed_files = ();
704 ################################################################
706 # Initialize our list of languages that are internally supported.
709 register_language ('name' => 'c',
711 'config_vars' => ['CC'],
713 'flags' => ['CFLAGS', 'CPPFLAGS'],
715 'compiler' => 'COMPILE',
716 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
720 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
721 'compile_flag' => '-c',
722 'libtool_tag' => 'CC',
723 'extensions' => ['.c']);
726 register_language ('name' => 'cxx',
728 'config_vars' => ['CXX'],
729 'linker' => 'CXXLINK',
730 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
732 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
733 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
735 'compiler' => 'CXXCOMPILE',
736 'compile_flag' => '-c',
737 'output_flag' => '-o',
738 'libtool_tag' => 'CXX',
742 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
745 register_language ('name' => 'objc',
746 'Name' => 'Objective C',
747 'config_vars' => ['OBJC'],
748 'linker' => 'OBJCLINK',
749 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
751 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
752 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
754 'compiler' => 'OBJCCOMPILE',
755 'compile_flag' => '-c',
756 'output_flag' => '-o',
760 'extensions' => ['.m']);
762 # Unified Parallel C.
763 register_language ('name' => 'upc',
764 'Name' => 'Unified Parallel C',
765 'config_vars' => ['UPC'],
766 'linker' => 'UPCLINK',
767 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
769 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
770 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
772 'compiler' => 'UPCCOMPILE',
773 'compile_flag' => '-c',
774 'output_flag' => '-o',
778 'extensions' => ['.upc']);
781 register_language ('name' => 'header',
783 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
786 'output_extensions' => sub { return () },
788 '_finish' => sub { });
791 register_language ('name' => 'vala',
793 'config_vars' => ['VALAC'],
795 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
797 'compiler' => 'VALACOMPILE',
798 'extensions' => ['.vala'],
799 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
801 'rule_file' => 'vala',
802 '_finish' => \&lang_vala_finish,
803 '_target_hook' => \&lang_vala_target_hook,
804 'nodist_specific' => 1);
807 register_language ('name' => 'yacc',
809 'config_vars' => ['YACC'],
810 'flags' => ['YFLAGS'],
811 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
813 'compiler' => 'YACCCOMPILE',
814 'extensions' => ['.y'],
815 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
817 'rule_file' => 'yacc',
818 '_finish' => \&lang_yacc_finish,
819 '_target_hook' => \&lang_yacc_target_hook,
820 'nodist_specific' => 1);
821 register_language ('name' => 'yaccxx',
822 'Name' => 'Yacc (C++)',
823 'config_vars' => ['YACC'],
824 'rule_file' => 'yacc',
825 'flags' => ['YFLAGS'],
827 'compiler' => 'YACCCOMPILE',
828 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
829 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
830 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
832 '_finish' => \&lang_yacc_finish,
833 '_target_hook' => \&lang_yacc_target_hook,
834 'nodist_specific' => 1);
837 register_language ('name' => 'lex',
839 'config_vars' => ['LEX'],
840 'rule_file' => 'lex',
841 'flags' => ['LFLAGS'],
842 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
844 'compiler' => 'LEXCOMPILE',
845 'extensions' => ['.l'],
846 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
848 '_finish' => \&lang_lex_finish,
849 '_target_hook' => \&lang_lex_target_hook,
850 'nodist_specific' => 1);
851 register_language ('name' => 'lexxx',
852 'Name' => 'Lex (C++)',
853 'config_vars' => ['LEX'],
854 'rule_file' => 'lex',
855 'flags' => ['LFLAGS'],
856 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
858 'compiler' => 'LEXCOMPILE',
859 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
860 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
862 '_finish' => \&lang_lex_finish,
863 '_target_hook' => \&lang_lex_target_hook,
864 'nodist_specific' => 1);
867 register_language ('name' => 'asm',
868 'Name' => 'Assembler',
869 'config_vars' => ['CCAS', 'CCASFLAGS'],
871 'flags' => ['CCASFLAGS'],
872 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
873 # or anything else required. They can also set CCAS.
874 # Or simply use Preprocessed Assembler.
875 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
877 'compiler' => 'CCASCOMPILE',
878 'compile_flag' => '-c',
879 'output_flag' => '-o',
880 'extensions' => ['.s']);
882 # Preprocessed Assembler.
883 register_language ('name' => 'cppasm',
884 'Name' => 'Preprocessed Assembler',
885 'config_vars' => ['CCAS', 'CCASFLAGS'],
888 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
889 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
891 'compiler' => 'CPPASCOMPILE',
892 'compile_flag' => '-c',
893 'output_flag' => '-o',
894 'extensions' => ['.S', '.sx']);
897 register_language ('name' => 'f77',
898 'Name' => 'Fortran 77',
899 'config_vars' => ['F77'],
900 'linker' => 'F77LINK',
901 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
902 'flags' => ['FFLAGS'],
903 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
905 'compiler' => 'F77COMPILE',
906 'compile_flag' => '-c',
907 'output_flag' => '-o',
908 'libtool_tag' => 'F77',
912 'extensions' => ['.f', '.for']);
915 register_language ('name' => 'fc',
917 'config_vars' => ['FC'],
918 'linker' => 'FCLINK',
919 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
920 'flags' => ['FCFLAGS'],
921 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
923 'compiler' => 'FCCOMPILE',
924 'compile_flag' => '-c',
925 'output_flag' => '-o',
926 'libtool_tag' => 'FC',
930 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
932 # Preprocessed Fortran
933 register_language ('name' => 'ppfc',
934 'Name' => 'Preprocessed Fortran',
935 'config_vars' => ['FC'],
936 'linker' => 'FCLINK',
937 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
940 'flags' => ['FCFLAGS', 'CPPFLAGS'],
942 'compiler' => 'PPFCCOMPILE',
943 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
944 'compile_flag' => '-c',
945 'output_flag' => '-o',
946 'libtool_tag' => 'FC',
948 'extensions' => ['.F90','.F95', '.F03', '.F08']);
950 # Preprocessed Fortran 77
952 # The current support for preprocessing Fortran 77 just involves
953 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
954 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
955 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
956 # for 'make' Version 3.76 Beta" (specifically, from info file
957 # '(make)Catalogue of Rules').
959 # A better approach would be to write an Autoconf test
960 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
961 # Fortran 77 compilers know how to do preprocessing. The Autoconf
962 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
963 # preprocessing capabilities, and then fall back on cpp (if cpp were
965 register_language ('name' => 'ppf77',
966 'Name' => 'Preprocessed Fortran 77',
967 'config_vars' => ['F77'],
968 'linker' => 'F77LINK',
969 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
972 'flags' => ['FFLAGS', 'CPPFLAGS'],
974 'compiler' => 'PPF77COMPILE',
975 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
976 'compile_flag' => '-c',
977 'output_flag' => '-o',
978 'libtool_tag' => 'F77',
980 'extensions' => ['.F']);
983 register_language ('name' => 'ratfor',
985 'config_vars' => ['F77'],
986 'linker' => 'F77LINK',
987 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
990 'flags' => ['RFLAGS', 'FFLAGS'],
992 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
994 'compiler' => 'RCOMPILE',
995 'compile_flag' => '-c',
996 'output_flag' => '-o',
997 'libtool_tag' => 'F77',
999 'extensions' => ['.r']);
1002 register_language ('name' => 'java',
1004 'config_vars' => ['GCJ'],
1005 'linker' => 'GCJLINK',
1006 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1008 'flags' => ['GCJFLAGS'],
1009 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1011 'compiler' => 'GCJCOMPILE',
1012 'compile_flag' => '-c',
1013 'output_flag' => '-o',
1014 'libtool_tag' => 'GCJ',
1018 'extensions' => ['.java', '.class', '.zip', '.jar']);
1020 ################################################################
1022 # Error reporting functions.
1024 # err_am ($MESSAGE, [%OPTIONS])
1025 # -----------------------------
1026 # Uncategorized errors about the current Makefile.am.
1029 msg_am ('error', @_);
1032 # err_ac ($MESSAGE, [%OPTIONS])
1033 # -----------------------------
1034 # Uncategorized errors about configure.ac.
1037 msg_ac ('error', @_);
1040 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1041 # ---------------------------------------
1042 # Messages about about the current Makefile.am.
1045 my ($channel, $msg, %opts) = @_;
1046 msg $channel, "${am_file}.am", $msg, %opts;
1049 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1050 # ---------------------------------------
1051 # Messages about about configure.ac.
1054 my ($channel, $msg, %opts) = @_;
1055 msg $channel, $configure_ac, $msg, %opts;
1058 ################################################################
1062 # Return a configure-style substitution using the indicated text.
1063 # We do this to avoid having the substitutions directly in automake.in;
1064 # when we do that they are sometimes removed and this causes confusion
1069 return '@' . $text . '@';
1072 ################################################################
1076 # &backname ($RELDIR)
1077 # --------------------
1078 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1079 # For instance 'src/foo' => '../..'.
1080 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1085 foreach (split (/\//, $file))
1087 next if $_ eq '.' || $_ eq '';
1091 or prog_error ("trying to reverse path '$file' pointing outside tree");
1098 return join ('/', @res) || '.';
1101 ################################################################
1103 # Silent rules handling functions.
1105 # verbose_var (NAME)
1106 # ------------------
1107 # The public variable stem used to implement silent rules.
1111 return 'AM_V_' . $name;
1114 # verbose_private_var (NAME)
1115 # --------------------------
1116 # The naming policy for the private variables for silent rules.
1117 sub verbose_private_var ($)
1120 return 'am__v_' . $name;
1123 # define_verbose_var (NAME, VAL)
1124 # ------------------------------
1125 # For silent rules, setup VAR and dispatcher, to expand to VAL if silent.
1126 sub define_verbose_var ($$)
1128 my ($name, $val) = @_;
1129 my $var = verbose_var ($name);
1130 my $pvar = verbose_private_var ($name);
1131 my $silent_var = $pvar . '_0';
1132 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1133 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1134 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1135 # See AM_SILENT_RULES in m4/silent.m4.
1136 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1137 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1139 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1140 '', INTERNAL, VAR_ASIS)
1141 if (! vardef ($silent_var, TRUE));
1144 # Above should not be needed in the general automake code.
1146 # verbose_flag (NAME)
1147 # -------------------
1148 # Contents of %VERBOSE%: variable to expand before rule command.
1149 sub verbose_flag ($)
1152 return '$(' . verbose_var ($name) . ')';
1155 sub verbose_nodep_flag ($)
1158 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1163 # Contents of %SILENT%: variable to expand to '@' when silent.
1166 return verbose_flag ('at');
1169 # define_verbose_tagvar (NAME)
1170 # ----------------------------
1171 # Engage the needed silent rules machinery for tag NAME.
1172 sub define_verbose_tagvar ($)
1175 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1176 define_verbose_var ('at', '@');
1179 # define_verbose_texinfo
1180 # ----------------------
1181 # Engage the needed silent rules machinery for assorted texinfo commands.
1182 sub define_verbose_texinfo ()
1184 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1185 foreach my $tag (@tagvars)
1187 define_verbose_tagvar($tag);
1189 define_verbose_var('texinfo', '-q');
1190 define_verbose_var('texidevnull', '> /dev/null');
1193 # define_verbose_libtool
1194 # ----------------------
1195 # Engage the needed silent rules machinery for 'libtool --silent'.
1196 sub define_verbose_libtool ()
1198 define_verbose_var ('lt', '--silent');
1199 return verbose_flag ('lt');
1203 ################################################################
1206 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1209 my $var = var ('AUTOMAKE_OPTIONS');
1212 if ($var->has_conditional_contents)
1214 msg_var ('unsupported', $var,
1215 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1217 my @options = map { { option => $_->[1], where => $_->[0] } }
1218 $var->value_as_list_recursive (cond_filter => TRUE,
1220 return 1 if process_option_list (@options);
1223 if ($strictness == GNITS)
1225 set_option ('readme-alpha', INTERNAL);
1226 set_option ('std-options', INTERNAL);
1227 set_option ('check-news', INTERNAL);
1233 # shadow_unconditionally ($varname, $where)
1234 # -----------------------------------------
1235 # Return a $(variable) that contains all possible values
1236 # $varname can take.
1237 # If the VAR wasn't defined conditionally, return $(VAR).
1238 # Otherwise we create an am__VAR_DIST variable which contains
1239 # all possible values, and return $(am__VAR_DIST).
1240 sub shadow_unconditionally ($$)
1242 my ($varname, $where) = @_;
1243 my $var = var $varname;
1244 if ($var->has_conditional_contents)
1246 $varname = "am__${varname}_DIST";
1247 my @files = uniq ($var->value_as_list_recursive);
1248 define_pretty_variable ($varname, TRUE, $where, @files);
1250 return "\$($varname)"
1253 # check_user_variables (@LIST)
1254 # ----------------------------
1255 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1257 sub check_user_variables (@)
1259 my @dont_override = @_;
1260 foreach my $flag (@dont_override)
1262 my $var = var $flag;
1265 for my $cond ($var->conditions->conds)
1267 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1269 msg_cond_var ('gnu', $cond, $flag,
1270 "'$flag' is a user variable, "
1271 . "you should not override it;\n"
1272 . "use 'AM_$flag' instead");
1279 # Call finish function for each language that was used.
1280 sub handle_languages
1282 if (! option 'no-dependencies')
1284 # Include auto-dep code. Don't include it if DEP_FILES would
1286 if (&saw_sources_p (0) && keys %dep_files)
1288 # Set location of depcomp.
1289 &define_variable ('depcomp',
1290 "\$(SHELL) $am_config_aux_dir/depcomp",
1292 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1294 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1296 my @deplist = sort keys %dep_files;
1297 # Generate each 'include' individually. Irix 6 make will
1298 # not properly include several files resulting from a
1299 # variable expansion; generating many separate includes
1301 $output_rules .= "\n";
1302 foreach my $iter (@deplist)
1304 $output_rules .= (subst ('AMDEP_TRUE')
1305 . subst ('am__include')
1307 . subst ('am__quote')
1309 . subst ('am__quote')
1313 # Compute the set of directories to remove in distclean-depend.
1314 my @depdirs = uniq (map { dirname ($_) } @deplist);
1315 $output_rules .= &file_contents ('depend',
1316 new Automake::Location,
1317 DEPDIRS => "@depdirs");
1322 &define_variable ('depcomp', '', INTERNAL);
1323 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1328 # Is the C linker needed?
1330 foreach my $ext (sort keys %extension_seen)
1332 next unless $extension_map{$ext};
1334 my $lang = $languages{$extension_map{$ext}};
1336 my $rule_file = $lang->rule_file || 'depend2';
1338 # Get information on $LANG.
1339 my $pfx = $lang->autodep;
1340 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1342 my ($AMDEP, $FASTDEP) =
1343 (option 'no-dependencies' || $lang->autodep eq 'no')
1344 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1346 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1347 my $verbose_nodep = ($AMDEP eq 'FALSE')
1348 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1349 my $silent = silent_flag ();
1351 my %transform = ('EXT' => $ext,
1355 'FASTDEP' => $FASTDEP,
1356 '-c' => $lang->compile_flag || '',
1357 # These are not used, but they need to be defined
1358 # so &transform do not complain.
1360 'DERIVED-EXT' => 'BUG',
1362 VERBOSE => $verbose,
1363 'VERBOSE-NODEP' => $verbose_nodep,
1367 # Generate the appropriate rules for this extension.
1368 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1369 || defined $lang->compile)
1371 # Some C compilers don't support -c -o. Use it only if really
1373 my $output_flag = $lang->output_flag || '';
1376 && $lang->name eq 'c'
1377 && option 'subdir-objects');
1379 # Compute a possible derived extension.
1380 # This is not used by depend2.am.
1381 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1383 # When we output an inference rule like '.c.o:' we
1384 # have two cases to consider: either subdir-objects
1385 # is used, or it is not.
1387 # In the latter case the rule is used to build objects
1388 # in the current directory, and dependencies always
1389 # go into './$(DEPDIR)/'. We can hard-code this value.
1391 # In the former case the rule can be used to build
1392 # objects in sub-directories too. Dependencies should
1393 # go into the appropriate sub-directories, e.g.,
1394 # 'sub/$(DEPDIR)/'. The value of this directory
1395 # needs to be computed on-the-fly.
1397 # DEPBASE holds the name of this directory, plus the
1398 # basename part of the object file (extensions Po, TPo,
1399 # Plo, TPlo will be added later as appropriate). It is
1400 # either hardcoded, or a shell variable ('$depbase') that
1401 # will be computed by the rule.
1403 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1405 file_contents ($rule_file,
1406 new Automake::Location,
1410 'DERIVED-EXT' => $der_ext,
1412 DEPBASE => $depbase,
1415 SOURCEFLAG => $sourceflags{$ext} || '',
1420 COMPILE => '$(' . $lang->compiler . ')',
1421 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1423 SUBDIROBJ => !! option 'subdir-objects');
1426 # Now include code for each specially handled object with this
1428 my %seen_files = ();
1429 foreach my $file (@{$lang_specific_files{$lang->name}})
1431 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1433 # We might see a given object twice, for instance if it is
1434 # used under different conditions.
1435 next if defined $seen_files{$obj};
1436 $seen_files{$obj} = 1;
1438 prog_error ("found " . $lang->name .
1439 " in handle_languages, but compiler not defined")
1440 unless defined $lang->compile;
1442 my $obj_compile = $lang->compile;
1444 # Rewrite each occurrence of 'AM_$flag' in the compile
1445 # rule into '${derived}_$flag' if it exists.
1446 for my $flag (@{$lang->flags})
1448 my $val = "${derived}_$flag";
1449 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1453 my $libtool_tag = '';
1454 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1456 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1459 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1460 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1462 my $ltverbose = define_verbose_libtool ();
1464 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1465 . "--mode=compile $obj_compile";
1467 # We _need_ '-o' for per object rules.
1468 my $output_flag = $lang->output_flag || '-o';
1470 my $depbase = dirname ($obj);
1474 unless $depbase eq '';
1475 $depbase .= '$(DEPDIR)/' . basename ($obj);
1478 file_contents ($rule_file,
1479 new Automake::Location,
1483 DEPBASE => $depbase,
1486 SOURCEFLAG => $sourceflags{$srcext} || '',
1487 # Use $myext and not '.o' here, in case
1488 # we are actually building a new source
1489 # file -- e.g. via yacc.
1490 OBJ => "$obj$myext",
1491 OBJOBJ => "$obj.obj",
1494 VERBOSE => $verbose,
1495 'VERBOSE-NODEP' => $verbose_nodep,
1497 COMPILE => $obj_compile,
1498 LTCOMPILE => $obj_ltcompile,
1503 # The rest of the loop is done once per language.
1504 next if defined $done{$lang};
1507 # Load the language dependent Makefile chunks.
1508 my %lang = map { uc ($_) => 0 } keys %languages;
1509 $lang{uc ($lang->name)} = 1;
1510 $output_rules .= file_contents ('lang-compile',
1511 new Automake::Location,
1514 # If the source to a program consists entirely of code from a
1515 # 'pure' language, for instance C++ or Fortran 77, then we
1516 # don't need the C compiler code. However if we run into
1517 # something unusual then we do generate the C code. There are
1518 # probably corner cases here that do not work properly.
1519 # People linking Java code to Fortran code deserve pain.
1520 $needs_c ||= ! $lang->pure;
1522 define_compiler_variable ($lang)
1523 if ($lang->compile);
1525 define_linker_variable ($lang)
1528 require_variables ("$am_file.am", $lang->Name . " source seen",
1529 TRUE, @{$lang->config_vars});
1531 # Call the finisher.
1534 # Flags listed in '->flags' are user variables (per GNU Standards),
1535 # they should not be overridden in the Makefile...
1536 my @dont_override = @{$lang->flags};
1537 # ... and so is LDFLAGS.
1538 push @dont_override, 'LDFLAGS' if $lang->link;
1540 check_user_variables @dont_override;
1543 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1544 # suffix rule was learned), don't bother with the C stuff. But if
1545 # anything else creeps in, then use it.
1547 if $need_link || suffix_rules_count > 1;
1551 &define_compiler_variable ($languages{'c'})
1552 unless defined $done{$languages{'c'}};
1553 define_linker_variable ($languages{'c'});
1556 # Always provide the user with 'AM_V_GEN' for silent rules.
1557 define_verbose_tagvar ('GEN');
1561 # append_exeext { PREDICATE } $MACRO
1562 # ----------------------------------
1563 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1564 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1567 # This is typically used on all filenames of *_PROGRAMS, and filenames
1568 # of TESTS that are programs.
1569 sub append_exeext (&$)
1571 my ($pred, $macro) = @_;
1573 transform_variable_recursively
1574 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1576 my ($subvar, $val, $cond, $full_cond) = @_;
1577 # Append $(EXEEXT) unless the user did it already, or it's a
1580 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1586 # Check to make sure a source defined in LIBOBJS is not explicitly
1587 # mentioned. This is a separate function (as opposed to being inlined
1588 # in handle_source_transform) because it isn't always appropriate to
1590 sub check_libobjs_sources
1592 my ($one_file, $unxformed) = @_;
1594 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1595 'dist_EXTRA_', 'nodist_EXTRA_')
1598 my $varname = $prefix . $one_file . '_SOURCES';
1599 my $var = var ($varname);
1602 @files = $var->value_as_list_recursive;
1604 elsif ($prefix eq '')
1606 @files = ($unxformed . '.c');
1613 foreach my $file (@files)
1615 err_var ($prefix . $one_file . '_SOURCES',
1616 "automatically discovered file '$file' should not" .
1617 " be explicitly mentioned")
1618 if defined $libsources{$file};
1625 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1626 # -----------------------------------------------------------------------------
1627 # Does much of the actual work for handle_source_transform.
1629 # $VAR is the name of the variable that the source filenames come from
1630 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1631 # $DERIVED is the name of resulting executable or library
1632 # $OBJ is the object extension (e.g., '.lo')
1633 # $FILE the source file to transform
1634 # %TRANSFORM contains extras arguments to pass to file_contents
1635 # when producing explicit rules
1636 # Result is a list of the names of objects
1637 # %linkers_used will be updated with any linkers needed
1638 sub handle_single_transform ($$$$$%)
1640 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1641 my @files = ($_file);
1644 # Turn sources into objects. We use a while loop like this
1645 # because we might add to @files in the loop.
1646 while (scalar @files > 0)
1650 # Configure substitutions in _SOURCES variables are errors.
1653 my $parent_msg = '';
1654 $parent_msg = "\nand is referred to from '$topparent'"
1655 if $topparent ne $var->name;
1657 "'" . $var->name . "' includes configure substitution '$_'"
1658 . $parent_msg . ";\nconfigure " .
1659 "substitutions are not allowed in _SOURCES variables");
1663 # If the source file is in a subdirectory then the '.o' is put
1664 # into the current directory, unless the subdir-objects option
1667 # Split file name into base and extension.
1668 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1670 my $directory = $1 || '';
1674 # We must generate a rule for the object if it requires its own flags.
1676 my ($linker, $object);
1678 # This records whether we've seen a derived source file (e.g.
1680 my $derived_source = 0;
1682 # This holds the 'aggregate context' of the file we are
1683 # currently examining. If the file is compiled with
1684 # per-object flags, then it will be the name of the object.
1685 # Otherwise it will be 'AM'. This is used by the target hook
1686 # language function.
1687 my $aggregate = 'AM';
1689 $extension = &derive_suffix ($extension, $obj);
1691 if ($extension_map{$extension} &&
1692 ($lang = $languages{$extension_map{$extension}}))
1694 # Found the language, so see what it says.
1695 &saw_extension ($extension);
1697 # Do we have per-executable flags for this executable?
1698 my $have_per_exec_flags = 0;
1699 my @peflags = @{$lang->flags};
1700 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1701 foreach my $flag (@peflags)
1703 if (set_seen ("${derived}_$flag"))
1705 $have_per_exec_flags = 1;
1710 # Note: computed subr call. The language rewrite function
1711 # should return one of the LANG_* constants. It could
1712 # also return a list whose first value is such a constant
1713 # and whose second value is a new source extension which
1714 # should be applied. This means this particular language
1715 # generates another source file which we must then process
1717 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1718 my ($r, $source_extension)
1719 = &$subr ($directory, $base, $extension,
1720 $obj, $have_per_exec_flags, $var);
1721 # Skip this entry if we were asked not to process it.
1722 next if $r == LANG_IGNORE;
1724 # Now extract linker and other info.
1725 $linker = $lang->linker;
1728 if (defined $source_extension)
1730 $this_obj_ext = $source_extension;
1731 $derived_source = 1;
1735 $this_obj_ext = $obj;
1737 $object = $base . $this_obj_ext;
1739 if ($have_per_exec_flags)
1741 # We have a per-executable flag in effect for this
1742 # object. In this case we rewrite the object's
1743 # name to ensure it is unique.
1745 # We choose the name 'DERIVED_OBJECT' to ensure
1746 # (1) uniqueness, and (2) continuity between
1747 # invocations. However, this will result in a
1748 # name that is too long for losing systems, in
1749 # some situations. So we provide _SHORTNAME to
1752 my $dname = $derived;
1753 my $var = var ($derived . '_SHORTNAME');
1756 # FIXME: should use the same Condition as
1757 # the _SOURCES variable. But this is really
1758 # silly overkill -- nobody should have
1759 # conditional shortnames.
1760 $dname = $var->variable_value;
1762 $object = $dname . '-' . $object;
1764 prog_error ($lang->name . " flags defined without compiler")
1765 if ! defined $lang->compile;
1770 # If rewrite said it was ok, put the object into a
1772 if ($r == LANG_SUBDIR && $directory ne '')
1774 $object = $directory . '/' . $object;
1777 # If the object file has been renamed (because per-target
1778 # flags are used) we cannot compile the file with an
1779 # inference rule: we need an explicit rule.
1781 # If the source is in a subdirectory and the object is in
1782 # the current directory, we also need an explicit rule.
1784 # If both source and object files are in a subdirectory
1785 # (this happens when the subdir-objects option is used),
1786 # then the inference will work.
1788 # The latter case deserves a historical note. When the
1789 # subdir-objects option was added on 1999-04-11 it was
1790 # thought that inferences rules would work for
1791 # subdirectory objects too. Later, on 1999-11-22,
1792 # automake was changed to output explicit rules even for
1793 # subdir-objects. Nobody remembers why, but this occurred
1794 # soon after the merge of the user-dep-gen-branch so it
1795 # might be related. In late 2003 people complained about
1796 # the size of the generated Makefile.ins (libgcj, with
1797 # 2200+ subdir objects was reported to have a 9MB
1798 # Makefile), so we now rely on inference rules again.
1799 # Maybe we'll run across the same issue as in the past,
1800 # but at least this time we can document it. However since
1801 # dependency tracking has evolved it is possible that
1802 # our old problem no longer exists.
1803 # Using inference rules for subdir-objects has been tested
1804 # with GNU make, Solaris make, Ultrix make, BSD make,
1805 # HP-UX make, and OSF1 make successfully.
1807 || ($directory ne '' && ! option 'subdir-objects')
1808 # We must also use specific rules for a nodist_ source
1809 # if its language requests it.
1810 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1812 my $obj_sans_ext = substr ($object, 0,
1813 - length ($this_obj_ext));
1815 if ($directory ne '')
1817 $full_ansi = $directory . '/' . $base . $extension;
1821 $full_ansi = $base . $extension;
1824 my @specifics = ($full_ansi, $obj_sans_ext,
1825 # Only use $this_obj_ext in the derived
1826 # source case because in the other case we
1827 # *don't* want $(OBJEXT) to appear here.
1828 ($derived_source ? $this_obj_ext : '.o'),
1831 # If we renamed the object then we want to use the
1832 # per-executable flag name. But if this is simply a
1833 # subdir build then we still want to use the AM_ flag
1837 unshift @specifics, $derived;
1838 $aggregate = $derived;
1842 unshift @specifics, 'AM';
1845 # Each item on this list is a reference to a list consisting
1846 # of four values followed by additional transform flags for
1847 # file_contents. The four values are the derived flag prefix
1848 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1849 # source file, the base name of the output file, and
1850 # the extension for the object file.
1851 push (@{$lang_specific_files{$lang->name}},
1852 [@specifics, %transform]);
1855 elsif ($extension eq $obj)
1857 # This is probably the result of a direct suffix rule.
1858 # In this case we just accept the rewrite.
1859 $object = "$base$extension";
1860 $object = "$directory/$object" if $directory ne '';
1865 # No error message here. Used to have one, but it was
1867 # FIXME: we could potentially do more processing here,
1868 # perhaps treating the new extension as though it were a
1869 # new source extension (as above). This would require
1870 # more restructuring than is appropriate right now.
1874 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1875 if (defined $object_map{$object}
1876 && $object_map{$object} ne $full);
1878 my $comp_val = (($object =~ /\.lo$/)
1879 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1880 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1881 if (defined $object_compilation_map{$comp_obj}
1882 && $object_compilation_map{$comp_obj} != 0
1883 # Only see the error once.
1884 && ($object_compilation_map{$comp_obj}
1885 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1886 && $object_compilation_map{$comp_obj} != $comp_val)
1888 err_am "object '$comp_obj' created both with libtool and without";
1890 $object_compilation_map{$comp_obj} |= $comp_val;
1894 # Let the language do some special magic if required.
1895 $lang->target_hook ($aggregate, $object, $full, %transform);
1898 if ($derived_source)
1900 prog_error ($lang->name . " has automatic dependency tracking")
1901 if $lang->autodep ne 'no';
1902 # Make sure this new source file is handled next. That will
1903 # make it appear to be at the right place in the list.
1904 unshift (@files, $object);
1905 # Distribute derived sources unless the source they are
1906 # derived from is not.
1907 &push_dist_common ($object)
1908 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1912 $linkers_used{$linker} = 1;
1914 push (@result, $object);
1916 if (! defined $object_map{$object})
1919 $object_map{$object} = $full;
1921 # If resulting object is in subdir, we need to make
1922 # sure the subdir exists at build time.
1923 if ($object =~ /\//)
1925 # FIXME: check that $DIRECTORY is somewhere in the
1928 # For Java, the way we're handling it right now, a
1929 # '..' component doesn't make sense.
1930 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1932 err_am "'$full' should not contain a '..' component";
1935 # Make sure object is removed by 'make mostlyclean'.
1936 $compile_clean_files{$object} = MOSTLY_CLEAN;
1937 # If we have a libtool object then we also must remove
1939 if ($object =~ /\.lo$/)
1941 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1942 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1944 # Remove any libtool object in this directory.
1945 $libtool_clean_directories{$directory} = 1;
1948 push (@dep_list, require_build_directory ($directory));
1950 # If we're generating dependencies, we also want
1951 # to make sure that the appropriate subdir of the
1952 # .deps directory is created.
1954 require_build_directory ($directory . '/$(DEPDIR)'))
1955 unless option 'no-dependencies';
1958 &pretty_print_rule ($object . ':', "\t", @dep_list)
1959 if scalar @dep_list > 0;
1962 # Transform .o or $o file into .P file (for automatic
1964 # Properly flatten multiple adjacent slashes, as Solaris 10 make
1965 # might fail over them in an include statement.
1966 # Leading double slashes may be special, as per Posix, so deal
1967 # with them carefully.
1968 if ($lang && $lang->autodep ne 'no')
1970 my $depfile = $object;
1971 $depfile =~ s/\.([^.]*)$/.P$1/;
1972 $depfile =~ s/\$\(OBJEXT\)$/o/;
1973 my $maybe_extra_leading_slash = '';
1974 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
1975 $depfile =~ s,/+,/,g;
1976 my $basename = basename ($depfile);
1977 # This might make $dirname empty, but we account for that below.
1978 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
1979 $dirname = $maybe_extra_leading_slash . $dirname;
1980 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
1989 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1990 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1991 # ---------------------------------------------------------------------------
1992 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1995 # $VAR is the name of the _SOURCES variable
1996 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1997 # it will be generated and returned).
1998 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1999 # work done to determine the linker will be).
2000 # $ONE_FILE is the canonical (transformed) name of object to build
2001 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2002 # $TOPPARENT is the _SOURCES variable being processed.
2003 # $WHERE context into which this definition is done
2004 # %TRANSFORM extra arguments to pass to file_contents when producing
2007 # Result is a pair ($LINKER, $OBJVAR):
2008 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2009 sub define_objects_from_sources ($$$$$$$%)
2011 my ($var, $objvar, $nodefine, $one_file,
2012 $obj, $topparent, $where, %transform) = @_;
2014 my $needlinker = "";
2016 transform_variable_recursively
2017 ($var, $objvar, 'am__objects', $nodefine, $where,
2018 # The transform code to run on each filename.
2020 my ($subvar, $val, $cond, $full_cond) = @_;
2021 my @trans = handle_single_transform ($subvar, $topparent,
2022 $one_file, $obj, $val,
2024 $needlinker = "true" if @trans;
2032 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2033 # -----------------------------------------------------------------------------
2034 # Handle SOURCE->OBJECT transform for one program or library.
2036 # canonical (transformed) name of target to build
2037 # actual target of object to build
2038 # object extension (i.e., either '.o' or '$o')
2039 # location of the source variable
2040 # extra arguments to pass to file_contents when producing rules
2041 # Return the name of the linker variable that must be used.
2042 # Empty return means just use 'LINK'.
2043 sub handle_source_transform ($$$$%)
2045 # one_file is canonical name. unxformed is given name. obj is
2047 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2051 # No point in continuing if _OBJECTS is defined.
2052 return if reject_var ($one_file . '_OBJECTS',
2053 $one_file . '_OBJECTS should not be defined');
2058 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2059 'dist_EXTRA_', 'nodist_EXTRA_')
2061 my $varname = $prefix . $one_file . "_SOURCES";
2062 my $var = var $varname;
2065 # We are going to define _OBJECTS variables using the prefix.
2066 # Then we glom them all together. So we can't use the null
2067 # prefix here as we need it later.
2068 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2070 # Keep track of which prefixes we saw.
2071 $used_pfx{$xpfx} = 1
2072 unless $prefix =~ /EXTRA_/;
2074 push @sources, "\$($varname)";
2075 push @dist_sources, shadow_unconditionally ($varname, $where)
2076 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2079 define_objects_from_sources ($varname,
2080 $xpfx . $one_file . '_OBJECTS',
2081 $prefix =~ /EXTRA_/,
2082 $one_file, $obj, $varname, $where,
2083 DIST_SOURCE => ($prefix !~ /^nodist_/),
2088 $linker ||= &resolve_linker (%linkers_used);
2091 my @keys = sort keys %used_pfx;
2092 if (scalar @keys == 0)
2094 # The default source for libfoo.la is libfoo.c, but for
2095 # backward compatibility we first look at libfoo_la.c,
2096 # if no default source suffix is given.
2097 my $old_default_source = "$one_file.c";
2098 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2099 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2100 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2101 if $default_source_ext =~ /[\t ]/;
2102 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2103 if ($old_default_source ne $default_source
2105 && (rule $old_default_source
2106 || rule '$(srcdir)/' . $old_default_source
2107 || rule '${srcdir}/' . $old_default_source
2108 || -f $old_default_source))
2110 my $loc = $where->clone;
2112 msg ('obsolete', $loc,
2113 "the default source for '$unxformed' has been changed "
2114 . "to '$default_source'.\n(Using '$old_default_source' for "
2115 . "backward compatibility.)");
2116 $default_source = $old_default_source;
2118 # If a rule exists to build this source with a $(srcdir)
2119 # prefix, use that prefix in our variables too. This is for
2120 # the sake of BSD Make.
2121 if (rule '$(srcdir)/' . $default_source
2122 || rule '${srcdir}/' . $default_source)
2124 $default_source = '$(srcdir)/' . $default_source;
2127 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2128 push (@sources, $default_source);
2129 push (@dist_sources, $default_source);
2133 handle_single_transform ($one_file . '_SOURCES',
2134 $one_file . '_SOURCES',
2136 $default_source, %transform);
2137 $linker ||= &resolve_linker (%linkers_used);
2138 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2142 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2143 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2146 # If we want to use 'LINK' we must make sure it is defined.
2156 # handle_lib_objects ($XNAME, $VAR)
2157 # ---------------------------------
2158 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2159 # Also, generate _DEPENDENCIES variable if appropriate.
2161 # transformed name of object being built, or empty string if no object
2162 # name of _LDADD/_LIBADD-type variable to examine
2163 # Returns 1 if LIBOBJS seen, 0 otherwise.
2164 sub handle_lib_objects
2166 my ($xname, $varname) = @_;
2168 my $var = var ($varname);
2169 prog_error "'$varname' undefined"
2171 prog_error "unexpected variable name '$varname'"
2172 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2173 my $prefix = $1 || 'AM_';
2175 my $seen_libobjs = 0;
2178 transform_variable_recursively
2179 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2181 # Transformation function, run on each filename.
2183 my ($subvar, $val, $cond, $full_cond) = @_;
2187 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2188 if ($val !~ /^-[lL]/ &&
2189 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2190 # for Libtool libraries or programs. (Actually we are a bit
2191 # lax here since this code also applies to non-libtool
2192 # libraries or programs, for which -dlopen and -dlopreopen
2193 # are pure nonsense. Diagnosing this doesn't seem very
2194 # important: the developer will quickly get complaints from
2196 $val !~ /^-dl(?:pre)?open$/ &&
2197 # Only get this error once.
2201 # FIXME: should display a stack of nested variables
2202 # as context when $var != $subvar.
2203 err_var ($var, "linker flags such as '$val' belong in "
2204 . "'${prefix}LDFLAGS'");
2208 elsif ($val !~ /^\@.*\@$/)
2210 # Assume we have a file of some sort, and output it into the
2211 # dependency variable. Autoconf substitutions are not output;
2212 # rarely is a new dependency substituted into e.g. foo_LDADD
2213 # -- but bad things (e.g. -lX11) are routinely substituted.
2214 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2215 # and handled specially below.
2218 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2220 handle_LIBOBJS ($subvar, $cond, $1);
2224 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2226 handle_ALLOCA ($subvar, $cond, $1);
2235 return $seen_libobjs;
2238 # handle_LIBOBJS_or_ALLOCA ($VAR)
2239 # -------------------------------
2240 # Definitions common to LIBOBJS and ALLOCA.
2241 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2242 sub handle_LIBOBJS_or_ALLOCA ($)
2248 # If LIBOBJS files must be built in another directory we have
2249 # to define LIBOBJDIR and ensure the files get cleaned.
2250 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2251 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2252 if ($config_libobj_dir
2253 && $relative_dir ne $config_libobj_dir)
2255 if (option 'subdir-objects')
2257 # In the top-level Makefile we do not use $(top_builddir), because
2258 # we are already there, and since the targets are built without
2259 # a $(top_builddir), it helps BSD Make to match them with
2261 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2262 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2263 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2264 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2265 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2266 # be created by libtool as a side-effect of creating LTLIBOBJS).
2267 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2271 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2272 . " 'subdir-objects' is not set");
2279 sub handle_LIBOBJS ($$$)
2281 my ($var, $cond, $lt) = @_;
2282 my $myobjext = $lt ? 'lo' : 'o';
2285 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2286 if ! keys %libsources;
2288 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2290 foreach my $iter (keys %libsources)
2292 if ($iter =~ /\.[cly]$/)
2294 &saw_extension ($&);
2295 &saw_extension ('.c');
2298 if ($iter =~ /\.h$/)
2300 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2302 elsif ($iter ne 'alloca.c')
2304 my $rewrite = $iter;
2305 $rewrite =~ s/\.c$/.P$myobjext/;
2306 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2307 $rewrite = "^" . quotemeta ($iter) . "\$";
2308 # Only require the file if it is not a built source.
2309 my $bs = var ('BUILT_SOURCES');
2310 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2312 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2318 sub handle_ALLOCA ($$$)
2320 my ($var, $cond, $lt) = @_;
2321 my $myobjext = $lt ? 'lo' : 'o';
2323 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2325 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2326 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2327 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2328 &saw_extension ('.c');
2331 # Canonicalize the input parameter
2335 $string =~ tr/A-Za-z0-9_\@/_/c;
2339 # Canonicalize a name, and check to make sure the non-canonical name
2340 # is never used. Returns canonical name. Arguments are name and a
2341 # list of suffixes to check for.
2342 sub check_canonical_spelling
2344 my ($name, @suffixes) = @_;
2346 my $xname = &canonicalize ($name);
2347 if ($xname ne $name)
2349 foreach my $xt (@suffixes)
2351 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2361 # Set up the compile suite.
2362 sub handle_compile ()
2364 return if ! $must_handle_compiled_objects;
2367 my $default_includes = '';
2368 if (! option 'nostdinc')
2370 my @incs = ('-I.', subst ('am__isrc'));
2372 my $var = var 'CONFIG_HEADER';
2375 foreach my $hdr (split (' ', $var->variable_value))
2377 push @incs, '-I' . dirname ($hdr);
2380 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2381 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2382 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2383 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2384 # to just put @am__isrc@ right after '-I.', without a space.
2385 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2388 my (@mostly_rms, @dist_rms);
2389 foreach my $item (sort keys %compile_clean_files)
2391 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2393 push (@mostly_rms, "\t-rm -f $item");
2395 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2397 push (@dist_rms, "\t-rm -f $item");
2401 prog_error 'invalid entry in %compile_clean_files';
2405 my ($coms, $vars, $rules) =
2406 &file_contents_internal (1, "$libdir/am/compile.am",
2407 new Automake::Location,
2408 ('DEFAULT_INCLUDES' => $default_includes,
2409 'MOSTLYRMS' => join ("\n", @mostly_rms),
2410 'DISTRMS' => join ("\n", @dist_rms)));
2411 $output_vars .= $vars;
2412 $output_rules .= "$coms$rules";
2417 # Handle libtool rules.
2420 return unless var ('LIBTOOL');
2422 # Libtool requires some files, but only at top level.
2423 # (Starting with Libtool 2.0 we do not have to bother. These
2424 # requirements are done with AC_REQUIRE_AUX_FILE.)
2425 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2426 if $relative_dir eq '.' && ! $libtool_new_api;
2429 foreach my $item (sort keys %libtool_clean_directories)
2431 my $dir = ($item eq '.') ? '' : "$item/";
2432 # .libs is for Unix, _libs for DOS.
2433 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2436 check_user_variables 'LIBTOOLFLAGS';
2438 # Output the libtool compilation rules.
2439 $output_rules .= &file_contents ('libtool',
2440 new Automake::Location,
2441 LTRMS => join ("\n", @libtool_rms));
2444 # handle_programs ()
2445 # ------------------
2446 # Handle C programs.
2449 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2450 'bin', 'sbin', 'libexec', 'pkglibexec',
2452 return if ! @proglist;
2453 $must_handle_compiled_objects = 1;
2455 my $seen_global_libobjs =
2456 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2458 foreach my $pair (@proglist)
2460 my ($where, $one_file) = @$pair;
2462 my $seen_libobjs = 0;
2463 my $obj = '.$(OBJEXT)';
2465 $known_programs{$one_file} = $where;
2467 # Canonicalize names and check for misspellings.
2468 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2469 '_SOURCES', '_OBJECTS',
2472 $where->push_context ("while processing program '$one_file'");
2473 $where->set (INTERNAL->get);
2475 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2476 NONLIBTOOL => 1, LIBTOOL => 0);
2478 if (var ($xname . "_LDADD"))
2480 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2484 # User didn't define prog_LDADD override. So do it.
2485 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2487 # This does a bit too much work. But we need it to
2488 # generate _DEPENDENCIES when appropriate.
2491 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2495 reject_var ($xname . '_LIBADD',
2496 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2498 set_seen ($xname . '_DEPENDENCIES');
2499 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2500 set_seen ($xname . '_LDFLAGS');
2502 # Determine program to use for link.
2503 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2504 $vlink = verbose_flag ($vlink || 'GEN');
2506 # If the resulting program lies into a subdirectory,
2507 # make sure this directory will exist.
2508 my $dirstamp = require_build_directory_maybe ($one_file);
2510 $libtool_clean_directories{dirname ($one_file)} = 1;
2512 $output_rules .= &file_contents ('program',
2514 PROGRAM => $one_file,
2518 DIRSTAMP => $dirstamp,
2519 EXEEXT => '$(EXEEXT)');
2521 if ($seen_libobjs || $seen_global_libobjs)
2523 if (var ($xname . '_LDADD'))
2525 &check_libobjs_sources ($xname, $xname . '_LDADD');
2527 elsif (var ('LDADD'))
2529 &check_libobjs_sources ($xname, 'LDADD');
2536 # handle_libraries ()
2537 # -------------------
2539 sub handle_libraries
2541 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2542 'lib', 'pkglib', 'noinst', 'check');
2543 return if ! @liblist;
2544 $must_handle_compiled_objects = 1;
2546 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2551 my $var = rvar ($prefix[0] . '_LIBRARIES');
2552 $var->requires_variables ('library used', 'RANLIB');
2555 &define_variable ('AR', 'ar', INTERNAL);
2556 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2557 &define_verbose_tagvar ('AR');
2559 foreach my $pair (@liblist)
2561 my ($where, $onelib) = @$pair;
2563 my $seen_libobjs = 0;
2564 # Check that the library fits the standard naming convention.
2565 my $bn = basename ($onelib);
2566 if ($bn !~ /^lib.*\.a$/)
2568 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2569 my $suggestion = dirname ($onelib) . "/$bn";
2570 $suggestion =~ s|^\./||g;
2571 msg ('error-gnu/warn', $where,
2572 "'$onelib' is not a standard library name\n"
2573 . "did you mean '$suggestion'?")
2576 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2578 $where->push_context ("while processing library '$onelib'");
2579 $where->set (INTERNAL->get);
2581 my $obj = '.$(OBJEXT)';
2583 # Canonicalize names and check for misspellings.
2584 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2585 '_OBJECTS', '_DEPENDENCIES',
2588 if (! var ($xlib . '_AR'))
2590 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2593 # Generate support for conditional object inclusion in
2595 if (var ($xlib . '_LIBADD'))
2597 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2604 &define_variable ($xlib . "_LIBADD", '', $where);
2607 reject_var ($xlib . '_LDADD',
2608 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2610 # Make sure we at look at this.
2611 set_seen ($xlib . '_DEPENDENCIES');
2612 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2614 &handle_source_transform ($xlib, $onelib, $obj, $where,
2615 NONLIBTOOL => 1, LIBTOOL => 0);
2617 # If the resulting library lies into a subdirectory,
2618 # make sure this directory will exist.
2619 my $dirstamp = require_build_directory_maybe ($onelib);
2620 my $verbose = verbose_flag ('AR');
2621 my $silent = silent_flag ();
2623 $output_rules .= &file_contents ('library',
2625 VERBOSE => $verbose,
2629 DIRSTAMP => $dirstamp);
2633 if (var ($xlib . '_LIBADD'))
2635 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2641 msg ('extra-portability', $where,
2642 "'$onelib': linking libraries using a non-POSIX\n"
2643 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2649 # handle_ltlibraries ()
2650 # ---------------------
2651 # Handle shared libraries.
2652 sub handle_ltlibraries
2654 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2655 'noinst', 'lib', 'pkglib', 'check');
2656 return if ! @liblist;
2657 $must_handle_compiled_objects = 1;
2659 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2664 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2665 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2669 my %instsubdirs = ();
2671 my %liblocations = (); # Location (in Makefile.am) of each library.
2673 foreach my $key (@prefix)
2675 # Get the installation directory of each library.
2677 my $strip_subdir = 1;
2678 if ($dir =~ /^nobase_/)
2680 $dir =~ s/^nobase_//;
2683 my $var = rvar ($key . '_LTLIBRARIES');
2685 # We reject libraries which are installed in several places
2686 # in the same condition, because we can only specify one
2688 $var->traverse_recursively
2691 my ($var, $val, $cond, $full_cond) = @_;
2692 my $hcond = $full_cond->human;
2693 my $where = $var->rdef ($cond)->location;
2695 $ldir = '/' . dirname ($val)
2696 if (!$strip_subdir);
2697 # A library cannot be installed in different directories
2698 # in overlapping conditions.
2699 if (exists $instconds{$val})
2702 $instconds{$val}->ambiguous_p ($val, $full_cond);
2706 error ($where, $msg, partial => 1);
2707 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2708 $dirtxt = "built for '$dir'"
2709 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2711 $full_cond->true ? "" : " in condition $hcond";
2713 error ($where, "'$val' should be $dirtxt$dircond ...",
2716 my $hacond = $acond->human;
2717 my $adir = $instdirs{$val}{$acond};
2718 my $adirtxt = "installed in '$adir'";
2719 $adirtxt = "built for '$adir'"
2720 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2721 || $adir eq 'check');
2722 my $adircond = $acond->true ? "" : " in condition $hacond";
2724 my $onlyone = ($dir ne $adir) ?
2725 ("\nLibtool libraries can be built for only one "
2726 . "destination") : "";
2728 error ($liblocations{$val}{$acond},
2729 "... and should also be $adirtxt$adircond.$onlyone");
2735 $instconds{$val} = new Automake::DisjConditions;
2737 $instdirs{$val}{$full_cond} = $dir;
2738 $instsubdirs{$val}{$full_cond} = $ldir;
2739 $liblocations{$val}{$full_cond} = $where;
2740 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2746 skip_ac_subst => 1);
2749 foreach my $pair (@liblist)
2751 my ($where, $onelib) = @$pair;
2753 my $seen_libobjs = 0;
2756 # Canonicalize names and check for misspellings.
2757 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2758 '_SOURCES', '_OBJECTS',
2761 # Check that the library fits the standard naming convention.
2762 my $libname_rx = '^lib.*\.la';
2763 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2764 my $ldvar2 = var ('LDFLAGS');
2765 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2766 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2768 # Relax name checking for libtool modules.
2769 $libname_rx = '\.la';
2772 my $bn = basename ($onelib);
2773 if ($bn !~ /$libname_rx$/)
2775 my $type = 'library';
2776 if ($libname_rx eq '\.la')
2778 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2783 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2785 my $suggestion = dirname ($onelib) . "/$bn";
2786 $suggestion =~ s|^\./||g;
2787 msg ('error-gnu/warn', $where,
2788 "'$onelib' is not a standard libtool $type name\n"
2789 . "did you mean '$suggestion'?")
2792 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2794 $where->push_context ("while processing Libtool library '$onelib'");
2795 $where->set (INTERNAL->get);
2797 # Make sure we look at these.
2798 set_seen ($xlib . '_LDFLAGS');
2799 set_seen ($xlib . '_DEPENDENCIES');
2800 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2802 # Generate support for conditional object inclusion in
2804 if (var ($xlib . '_LIBADD'))
2806 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2813 &define_variable ($xlib . "_LIBADD", '', $where);
2816 reject_var ("${xlib}_LDADD",
2817 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2820 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2821 NONLIBTOOL => 0, LIBTOOL => 1);
2823 # Determine program to use for link.
2824 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2825 $vlink = verbose_flag ($vlink || 'GEN');
2827 my $rpathvar = "am_${xlib}_rpath";
2828 my $rpath = "\$($rpathvar)";
2829 foreach my $rcond ($instconds{$onelib}->conds)
2832 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2833 || $instdirs{$onelib}{$rcond} eq 'noinst'
2834 || $instdirs{$onelib}{$rcond} eq 'check')
2836 # It's an EXTRA_ library, so we can't specify -rpath,
2837 # because we don't know where the library will end up.
2838 # The user probably knows, but generally speaking automake
2839 # doesn't -- and in fact configure could decide
2840 # dynamically between two different locations.
2845 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2846 $val .= $instsubdirs{$onelib}{$rcond}
2847 if defined $instsubdirs{$onelib}{$rcond};
2851 # If $rcond is true there is only one condition and
2852 # there is no point defining an helper variable.
2857 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2861 # If the resulting library lies into a subdirectory,
2862 # make sure this directory will exist.
2863 my $dirstamp = require_build_directory_maybe ($onelib);
2865 # Remember to cleanup .libs/ in this directory.
2866 my $dirname = dirname $onelib;
2867 $libtool_clean_directories{$dirname} = 1;
2869 $output_rules .= &file_contents ('ltlibrary',
2871 LTLIBRARY => $onelib,
2872 XLTLIBRARY => $xlib,
2876 DIRSTAMP => $dirstamp);
2879 if (var ($xlib . '_LIBADD'))
2881 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2887 msg ('extra-portability', $where,
2888 "'$onelib': linking libtool libraries using a non-POSIX\n"
2889 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2894 # See if any _SOURCES variable were misspelled.
2897 # It is ok if the user sets this particular variable.
2898 set_seen 'AM_LDFLAGS';
2900 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2902 foreach my $var (variables $primary)
2904 my $varname = $var->name;
2905 # A configure variable is always legitimate.
2906 next if exists $configure_vars{$varname};
2908 for my $cond ($var->conditions->conds)
2910 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2911 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2912 . " program or\nlibrary has '$1' as canonical name"
2913 . " (possible typo)")
2914 unless $var->rdef ($cond)->seen;
2924 # NOTE we no longer automatically clean SCRIPTS, because it is
2925 # useful to sometimes distribute scripts verbatim. This happens
2926 # e.g. in Automake itself.
2927 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2928 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2935 ## ------------------------ ##
2936 ## Handling Texinfo files. ##
2937 ## ------------------------ ##
2939 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2940 # &scan_texinfo_file ($FILENAME)
2941 # ------------------------------
2942 # $OUTFILE - name of the info file produced by $FILENAME.
2943 # $VFILE - name of the version.texi file used (undef if none).
2944 # @CLEAN_FILES - list of byproducts (indexes etc.)
2945 sub scan_texinfo_file ($)
2947 my ($filename) = @_;
2949 # Some of the following extensions are always created, no matter
2950 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2951 # are only created when they are used. We used to scan $FILENAME
2952 # for their use, but that is not enough: they could be used in
2953 # included files. We can't scan included files because we don't
2954 # know the include path. Therefore we always erase these files, no
2955 # matter whether they are used or not.
2957 # (tmp is only created if an @macro is used and a certain e-TeX
2958 # feature is not available.)
2959 my %clean_suffixes =
2960 map { $_ => 1 } (qw(aux log toc tmp
2966 pg pgs)); # grep 'new.*index' texinfo.tex
2968 my $texi = new Automake::XFile "< $filename";
2969 verb "reading $filename";
2971 my ($outfile, $vfile);
2972 while ($_ = $texi->getline)
2974 if (/^\@setfilename +(\S+)/)
2976 # Honor only the first @setfilename. (It's possible to have
2977 # more occurrences later if the manual shows examples of how
2978 # to use @setfilename...)
2982 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2984 error ("$filename:$.",
2985 "output '$outfile' has unrecognized extension");
2989 # A "version.texi" file is actually any file whose name matches
2991 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2996 # Try to find new or unused indexes.
2998 # Creating a new category of index.
2999 elsif (/^\@def(code)?index (\w+)/)
3001 $clean_suffixes{$2} = 1;
3002 $clean_suffixes{"$2s"} = 1;
3005 # Merging an index into an another.
3006 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3008 delete $clean_suffixes{"$2s"};
3009 $clean_suffixes{"$3s"} = 1;
3016 err_am "'$filename' missing \@setfilename";
3020 my $infobase = basename ($filename);
3021 $infobase =~ s/\.te?xi(nfo)?$//;
3022 return ($outfile, $vfile,
3023 map { "$infobase.$_" } (sort keys %clean_suffixes));
3027 # ($DIRSTAMP, @CLEAN_FILES)
3028 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3029 # ------------------------------------------------------------------
3030 # SOURCE - the source Texinfo file
3031 # DEST - the destination Info file
3032 # INSRC - whether DEST should be built in the source tree
3033 # DEPENDENCIES - known dependencies
3034 sub output_texinfo_build_rules ($$$@)
3036 my ($source, $dest, $insrc, @deps) = @_;
3038 # Split 'a.texi' into 'a' and '.texi'.
3039 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3040 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3045 # We can output two kinds of rules: the "generic" rules use Make
3046 # suffix rules and are appropriate when $source and $dest do not lie
3047 # in a sub-directory; the "specific" rules are needed in the other
3050 # The former are output only once (this is not really apparent here,
3051 # but just remember that some logic deeper in Automake will not
3052 # output the same rule twice); while the later need to be output for
3053 # each Texinfo source.
3056 my $sdir = dirname $source;
3057 if ($sdir eq '.' && dirname ($dest) eq '.')
3060 $makeinfoflags = '-I $(srcdir)';
3065 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3068 # A directory can contain two kinds of info files: some built in the
3069 # source tree, and some built in the build tree. The rules are
3070 # different in each case. However we cannot output two different
3071 # set of generic rules. Because in-source builds are more usual, we
3072 # use generic rules in this case and fall back to "specific" rules
3073 # for build-dir builds. (It should not be a problem to invert this
3075 $generic = 0 unless $insrc;
3077 # We cannot use a suffix rule to build info files with an empty
3078 # extension. Otherwise we would output a single suffix inference
3079 # rule, with separate dependencies, as in
3083 # foo.info: foo.texi
3085 # which confuse Solaris make. (See the Autoconf manual for
3086 # details.) Therefore we use a specific rule in this case. This
3087 # applies to info files only (dvi and pdf files always have an
3089 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3091 # If the resulting file lie into a subdirectory,
3092 # make sure this directory will exist.
3093 my $dirstamp = require_build_directory_maybe ($dest);
3095 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3097 $output_rules .= file_contents ('texibuild',
3098 new Automake::Location,
3099 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3100 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3101 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3103 DEST_PREFIX => $dpfx,
3104 DEST_INFO_PREFIX => $dipfx,
3105 DEST_SUFFIX => $dsfx,
3106 DIRSTAMP => $dirstamp,
3107 GENERIC => $generic,
3108 GENERIC_INFO => $generic_info,
3110 MAKEINFOFLAGS => $makeinfoflags,
3111 SILENT => silent_flag(),
3114 SOURCE_INFO => ($generic_info
3116 SOURCE_REAL => $source,
3117 SOURCE_SUFFIX => $ssfx,
3118 TEXIQUIET => verbose_flag('texinfo'),
3119 TEXIDEVNULL => verbose_flag('texidevnull'),
3121 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3125 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3126 # handle_texinfo_helper ($info_texinfos)
3127 # --------------------------------------
3128 # Handle all Texinfo source; helper for handle_texinfo.
3129 sub handle_texinfo_helper ($)
3131 my ($info_texinfos) = @_;
3132 my (@infobase, @info_deps_list, @texi_deps);
3135 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3137 # Build a regex matching user-cleaned files.
3138 my $d = var 'DISTCLEANFILES';
3139 my $c = var 'CLEANFILES';
3141 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3142 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3143 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3144 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3147 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3149 my $infobase = $texi;
3150 $infobase =~ s/\.(txi|texinfo|texi)$//;
3152 if ($infobase eq $texi)
3154 # FIXME: report line number.
3155 err_am "texinfo file '$texi' has unrecognized extension";
3159 push @infobase, $infobase;
3161 # If 'version.texi' is referenced by input file, then include
3162 # automatic versioning capability.
3163 my ($out_file, $vtexi, @clean_files) =
3164 scan_texinfo_file ("$relative_dir/$texi")
3166 push (@mostly_cleans, @clean_files);
3168 # If the Texinfo source is in a subdirectory, create the
3169 # resulting info in this subdirectory. If it is in the current
3170 # directory, try hard to not prefix "./" because it breaks the
3172 my $outdir = dirname ($texi) . '/';
3173 $outdir = "" if $outdir eq './';
3174 $out_file = $outdir . $out_file;
3176 # Until Automake 1.6.3, .info files were built in the
3177 # source tree. This was an obstacle to the support of
3178 # non-distributed .info files, and non-distributed .texi
3181 # * Non-distributed .texi files is important in some packages
3182 # where .texi files are built at make time, probably using
3183 # other binaries built in the package itself, maybe using
3184 # tools or information found on the build host. Because
3185 # these files are not distributed they are always rebuilt
3186 # at make time; they should therefore not lie in the source
3187 # directory. One plan was to support this using
3188 # nodist_info_TEXINFOS or something similar. (Doing this
3189 # requires some sanity checks. For instance Automake should
3191 # dist_info_TEXINFOS = foo.texi
3192 # nodist_foo_TEXINFOS = included.texi
3193 # because a distributed file should never depend on a
3194 # non-distributed file.)
3196 # * If .texi files are not distributed, then .info files should
3197 # not be distributed either. There are also cases where one
3198 # wants to distribute .texi files, but does not want to
3199 # distribute the .info files. For instance the Texinfo package
3200 # distributes the tool used to build these files; it would
3201 # be a waste of space to distribute them. It's not clear
3202 # which syntax we should use to indicate that .info files should
3203 # not be distributed. Akim Demaille suggested that eventually
3204 # we switch to a new syntax:
3205 # | Maybe we should take some inspiration from what's already
3206 # | done in the rest of Automake. Maybe there is too much
3207 # | syntactic sugar here, and you want
3208 # | nodist_INFO = bar.info
3209 # | dist_bar_info_SOURCES = bar.texi
3210 # | bar_texi_DEPENDENCIES = foo.texi
3211 # | with a bit of magic to have bar.info represent the whole
3212 # | bar*info set. That's a lot more verbose that the current
3213 # | situation, but it is # not new, hence the user has less
3216 # | But there is still too much room for meaningless specs:
3217 # | nodist_INFO = bar.info
3218 # | dist_bar_info_SOURCES = bar.texi
3219 # | dist_PS = bar.ps something-written-by-hand.ps
3220 # | nodist_bar_ps_SOURCES = bar.texi
3221 # | bar_texi_DEPENDENCIES = foo.texi
3222 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3224 # Back to the point, it should be clear that in order to support
3225 # non-distributed .info files, we need to build them in the
3226 # build tree, not in the source tree (non-distributed .texi
3227 # files are less of a problem, because we do not output build
3228 # rules for them). In Automake 1.7 .info build rules have been
3229 # largely cleaned up so that .info files get always build in the
3230 # build tree, even when distributed. The idea was that
3231 # (1) if during a VPATH build the .info file was found to be
3232 # absent or out-of-date (in the source tree or in the
3233 # build tree), Make would rebuild it in the build tree.
3234 # If an up-to-date source-tree of the .info file existed,
3235 # make would not rebuild it in the build tree.
3236 # (2) having two copies of .info files, one in the source tree
3237 # and one (newer) in the build tree is not a problem
3238 # because 'make dist' always pick files in the build tree
3240 # However it turned out the be a bad idea for several reasons:
3241 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3242 # like GNU Make on point (1) above. These implementations
3243 # of Make would always rebuild .info files in the build
3244 # tree, even if such files were up to date in the source
3245 # tree. Consequently, it was impossible to perform a VPATH
3246 # build of a package containing Texinfo files using these
3247 # Make implementations.
3248 # (Refer to the Autoconf Manual, section "Limitation of
3249 # Make", paragraph "VPATH", item "target lookup", for
3250 # an account of the differences between these
3252 # * The GNU Coding Standards require these files to be built
3253 # in the source-tree (when they are distributed, that is).
3254 # * Keeping a fresher copy of distributed files in the
3255 # build tree can be annoying during development because
3256 # - if the files is kept under CVS, you really want it
3257 # to be updated in the source tree
3258 # - it is confusing that 'make distclean' does not erase
3259 # all files in the build tree.
3261 # Consequently, starting with Automake 1.8, .info files are
3262 # built in the source tree again. Because we still plan to
3263 # support non-distributed .info files at some point, we
3264 # have a single variable ($INSRC) that controls whether
3265 # the current .info file must be built in the source tree
3266 # or in the build tree. Actually this variable is switched
3267 # off for .info files that appear to be cleaned; this is
3268 # for backward compatibility with package such as Texinfo,
3269 # which do things like
3270 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3271 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3272 # # Do not create info files for distribution.
3274 # in order not to distribute .info files.
3275 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3277 my $soutdir = '$(srcdir)/' . $outdir;
3278 $outdir = $soutdir if $insrc;
3280 # If user specified file_TEXINFOS, then use that as explicit
3283 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3285 my $canonical = canonicalize ($infobase);
3286 if (var ($canonical . "_TEXINFOS"))
3288 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3289 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3292 my ($dirstamp, @cfiles) =
3293 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3294 push (@texi_cleans, @cfiles);
3296 push (@info_deps_list, $out_file);
3298 # If a vers*.texi file is needed, emit the rule.
3301 err_am ("'$vtexi', included in '$texi', "
3302 . "also included in '$versions{$vtexi}'")
3303 if defined $versions{$vtexi};
3304 $versions{$vtexi} = $texi;
3306 # We number the stamp-vti files. This is doable since the
3307 # actual names don't matter much. We only number starting
3308 # with the second one, so that the common case looks nice.
3309 my $vti = ($done ? $done : 'vti');
3312 # This is ugly, but it is our historical practice.
3313 if ($config_aux_dir_set_in_configure_ac)
3315 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3320 require_file_with_macro (TRUE, 'info_TEXINFOS',
3321 FOREIGN, 'mdate-sh');
3325 if ($config_aux_dir_set_in_configure_ac)
3327 $conf_dir = "$am_config_aux_dir/";
3331 $conf_dir = '$(srcdir)/';
3333 $output_rules .= file_contents ('texi-vers',
3334 new Automake::Location,
3337 STAMPVTI => "${soutdir}stamp-$vti",
3338 VTEXI => "$soutdir$vtexi",
3340 DIRSTAMP => $dirstamp);
3344 # Handle location of texinfo.tex.
3345 my $need_texi_file = 0;
3347 if (var ('TEXINFO_TEX'))
3349 # The user defined TEXINFO_TEX so assume he knows what he is
3351 $texinfodir = ('$(srcdir)/'
3352 . dirname (variable_value ('TEXINFO_TEX')));
3354 elsif ($config_aux_dir_set_in_configure_ac)
3356 $texinfodir = $am_config_aux_dir;
3357 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3358 $need_texi_file = 2; # so that we require_conf_file later
3362 $texinfodir = '$(srcdir)';
3363 $need_texi_file = 1;
3365 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3367 push (@dist_targets, 'dist-info');
3369 if (! option 'no-installinfo')
3371 # Make sure documentation is made and installed first. Use
3372 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3373 # get run twice during "make all".
3374 unshift (@all, '$(INFO_DEPS)');
3377 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3378 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3379 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3380 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3382 # This next isn't strictly needed now -- the places that look here
3383 # could easily be changed to look in info_TEXINFOS. But this is
3384 # probably better, in case noinst_TEXINFOS is ever supported.
3385 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3387 # Do some error checking. Note that this file is not required
3388 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3390 if ($need_texi_file && ! option 'no-texinfo.tex')
3392 if ($need_texi_file > 1)
3394 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3399 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3404 return (makefile_wrap ("", "\t ", @mostly_cleans),
3405 makefile_wrap ("", "\t ", @texi_cleans),
3406 makefile_wrap ("", "\t ", @maint_cleans));
3412 # Handle all Texinfo source.
3413 sub handle_texinfo ()
3415 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3416 # FIXME: I think this is an obsolete future feature name.
3417 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3419 my $info_texinfos = var ('info_TEXINFOS');
3420 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3423 define_verbose_texinfo;
3424 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3430 $output_rules .= file_contents ('texinfos',
3431 new Automake::Location,
3432 AM_V_DVIPS => verbose_flag('DVIPS'),
3433 MOSTLYCLEAN => $mostlyclean,
3434 TEXICLEAN => $clean,
3435 MAINTCLEAN => $maintclean,
3436 'LOCAL-TEXIS' => !!$info_texinfos,
3437 TEXIQUIET => verbose_flag('texinfo'));
3441 # Handle any man pages.
3442 sub handle_man_pages
3444 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3446 # Find all the sections in use. We do this by first looking for
3447 # "standard" sections, and then looking for any additional
3448 # sections used in man_MANS.
3449 my (%sections, %notrans_sections, %trans_sections,
3450 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3451 # We handle nodist_ for uniformity. man pages aren't distributed
3452 # by default so it isn't actually very important.
3453 foreach my $npfx ('', 'notrans_')
3455 foreach my $pfx ('', 'dist_', 'nodist_')
3457 # Add more sections as needed.
3458 foreach my $section ('0'..'9', 'n', 'l')
3460 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3463 $sections{$section} = 1;
3464 $varname = '$(' . $varname . ')';
3465 if ($npfx eq 'notrans_')
3467 $notrans_sections{$section} = 1;
3468 $notrans_sect_vars{$varname} = 1;
3472 $trans_sections{$section} = 1;
3473 $trans_sect_vars{$varname} = 1;
3476 &push_dist_common ($varname)
3481 my $varname = $npfx . $pfx . 'man_MANS';
3482 my $var = var ($varname);
3485 foreach ($var->value_as_list_recursive)
3487 # A page like 'foo.1c' goes into man1dir.
3488 if (/\.([0-9a-z])([a-z]*)$/)
3491 if ($npfx eq 'notrans_')
3493 $notrans_sections{$1} = 1;
3497 $trans_sections{$1} = 1;
3502 $varname = '$(' . $varname . ')';
3503 if ($npfx eq 'notrans_')
3505 $notrans_vars{$varname} = 1;
3509 $trans_vars{$varname} = 1;
3511 &push_dist_common ($varname)
3517 return unless %sections;
3521 # Build section independent variables.
3522 my $have_notrans = %notrans_vars;
3523 my @notrans_list = sort keys %notrans_vars;
3524 my $have_trans = %trans_vars;
3525 my @trans_list = sort keys %trans_vars;
3527 # Now for each section, generate an install and uninstall rule.
3528 # Sort sections so output is deterministic.
3529 foreach my $section (sort keys %sections)
3531 # Build section dependent variables.
3532 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3533 my $trans_mans = $have_trans || exists $trans_sections{$section};
3534 my (%notrans_this_sect, %trans_this_sect);
3535 my $expr = 'man' . $section . '_MANS';
3536 foreach my $varname (keys %notrans_sect_vars)
3538 if ($varname =~ /$expr/)
3540 $notrans_this_sect{$varname} = 1;
3543 foreach my $varname (keys %trans_sect_vars)
3545 if ($varname =~ /$expr/)
3547 $trans_this_sect{$varname} = 1;
3550 my @notrans_sect_list = sort keys %notrans_this_sect;
3551 my @trans_sect_list = sort keys %trans_this_sect;
3552 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3553 keys %notrans_this_sect, keys %trans_this_sect);
3554 my @deps = sort @unsorted_deps;
3555 $output_rules .= &file_contents ('mans',
3556 new Automake::Location,
3557 SECTION => $section,
3559 NOTRANS_MANS => $notrans_mans,
3560 NOTRANS_SECT_LIST => "@notrans_sect_list",
3561 HAVE_NOTRANS => $have_notrans,
3562 NOTRANS_LIST => "@notrans_list",
3563 TRANS_MANS => $trans_mans,
3564 TRANS_SECT_LIST => "@trans_sect_list",
3565 HAVE_TRANS => $have_trans,
3566 TRANS_LIST => "@trans_list");
3569 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3570 keys %notrans_sect_vars, keys %trans_sect_vars);
3571 my @mans = sort @unsorted_deps;
3572 $output_vars .= file_contents ('mans-vars',
3573 new Automake::Location,
3576 push (@all, '$(MANS)')
3577 unless option 'no-installman';
3580 # Handle DATA variables.
3583 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3584 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3585 'ps', 'sysconf', 'sharedstate', 'localstate',
3586 'pkgdata', 'lisp', 'noinst', 'check');
3594 my @cscope_deps = ();
3595 if (var ('SUBDIRS'))
3597 $output_rules .= ("tags-recursive:\n"
3598 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3599 # Never fail here if a subdir fails; it
3601 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3602 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3604 push (@tag_deps, 'tags-recursive');
3605 &depend ('.PHONY', 'tags-recursive');
3606 &depend ('.MAKE', 'tags-recursive');
3608 $output_rules .= ("ctags-recursive:\n"
3609 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3610 # Never fail here if a subdir fails; it
3612 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3613 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3615 push (@ctag_deps, 'ctags-recursive');
3616 &depend ('.PHONY', 'ctags-recursive');
3617 &depend ('.MAKE', 'ctags-recursive');
3619 $output_rules .= ("cscopelist-recursive:\n"
3620 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3621 # Never fail here if a subdir fails; it
3623 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3624 . " && \$(MAKE) \$(AM_MAKEFLAGS) cscopelist); \\\n"
3626 push (@cscope_deps, 'cscopelist-recursive');
3627 &depend ('.PHONY', 'cscopelist-recursive');
3628 &depend ('.MAKE', 'cscopelist-recursive');
3631 if (&saw_sources_p (1)
3632 || var ('ETAGS_ARGS')
3636 foreach my $spec (@config_headers)
3638 my ($out, @ins) = split_config_file_spec ($spec);
3639 foreach my $in (@ins)
3641 # If the config header source is in this directory,
3643 push @config, basename ($in)
3644 if $relative_dir eq dirname ($in);
3647 $output_rules .= &file_contents ('tags',
3648 new Automake::Location,
3649 CONFIG => "@config",
3650 TAGSDIRS => "@tag_deps",
3651 CTAGSDIRS => "@ctag_deps",
3652 CSCOPEDIRS => "@cscope_deps");
3654 set_seen 'TAGS_DEPENDENCIES';
3656 elsif (reject_var ('TAGS_DEPENDENCIES',
3657 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3658 . " without\nsources or 'ETAGS_ARGS'"))
3663 # Every Makefile must define some sort of TAGS rule.
3664 # Otherwise, it would be possible for a top-level "make TAGS"
3665 # to fail because some subdirectory failed.
3666 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3667 # Ditto ctags and cscope.
3668 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3669 $output_rules .= "cscope cscopelist:\n\n";
3674 # user_phony_rule ($NAME)
3675 # -----------------------
3676 # Return false if rule $NAME does not exist. Otherwise,
3677 # declare it as phony, complete its definition (in case it is
3678 # conditional), and return its Automake::Rule instance.
3679 sub user_phony_rule ($)
3682 my $rule = rule $name;
3685 depend ('.PHONY', $name);
3686 # Define $NAME in all condition where it is not already defined,
3687 # so that it is always OK to depend on $NAME.
3688 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3690 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3692 $output_rules .= $c->subst_string . "$name:\n";
3700 # &for_dist_common ($A, $B)
3701 # -------------------------
3702 # Subroutine for &handle_dist: sort files to dist.
3704 # We put README first because it then becomes easier to make a
3705 # Usenet-compliant shar file (in these, README must be first).
3707 # FIXME: do more ordering of files here.
3721 # Handle 'dist' target.
3724 # Substitutions for distdir.am
3727 # Define DIST_SUBDIRS. This must always be done, regardless of the
3728 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3729 my $subdirs = var ('SUBDIRS');
3732 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3733 # to all possible directories, and use it. If DIST_SUBDIRS is
3734 # defined, just use it.
3736 # Note that we check DIST_SUBDIRS first on purpose, so that
3737 # we don't call has_conditional_contents for now reason.
3738 # (In the past one project used so many conditional subdirectories
3739 # that calling has_conditional_contents on SUBDIRS caused
3740 # automake to grow to 150Mb -- this should not happen with
3741 # the current implementation of has_conditional_contents,
3742 # but it's more efficient to avoid the call anyway.)
3743 if (var ('DIST_SUBDIRS'))
3746 elsif ($subdirs->has_conditional_contents)
3748 define_pretty_variable
3749 ('DIST_SUBDIRS', TRUE, INTERNAL,
3750 uniq ($subdirs->value_as_list_recursive));
3754 # We always define this because that is what 'distclean'
3756 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3761 # The remaining definitions are only required when a dist target is used.
3762 return if option 'no-dist';
3764 # At least one of the archive formats must be enabled.
3765 if ($relative_dir eq '.')
3767 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3768 $archive_defined ||=
3769 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3770 error (option 'no-dist-gzip',
3771 "no-dist-gzip specified but no dist-* specified,\n"
3772 . "at least one archive format must be enabled")
3773 unless $archive_defined;
3776 # Look for common files that should be included in distribution.
3777 # If the aux dir is set, and it does not have a Makefile.am, then
3778 # we check for these files there as well.
3780 if ($relative_dir eq '.'
3781 && $config_aux_dir_set_in_configure_ac)
3783 if (! &is_make_dir ($config_aux_dir))
3788 foreach my $cfile (@common_files)
3790 if (dir_has_case_matching_file ($relative_dir, $cfile)
3791 # The file might be absent, but if it can be built it's ok.
3794 &push_dist_common ($cfile);
3797 # Don't use 'elsif' here because a file might meaningfully
3798 # appear in both directories.
3799 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3801 &push_dist_common ("$config_aux_dir/$cfile")
3805 # We might copy elements from $configure_dist_common to
3806 # %dist_common if we think we need to. If the file appears in our
3807 # directory, we would have discovered it already, so we don't
3808 # check that. But if the file is in a subdir without a Makefile,
3809 # we want to distribute it here if we are doing '.'. Ugly!
3810 # Also, in some corner cases, it's possible that the following code
3811 # will cause the same file to appear in the $(DIST_COMMON) variables
3812 # of two distinct Makefiles; but this is not a problem, since the
3813 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3814 # file being distributed multiple times.
3815 # See also automake bug#9651.
3816 if ($relative_dir eq '.')
3818 foreach my $file (split (' ' , $configure_dist_common))
3820 my $dir = dirname ($file);
3821 push_dist_common ($file)
3822 if ($dir eq '.' || ! is_make_dir ($dir));
3826 # Files to distributed. Don't use ->value_as_list_recursive
3827 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3828 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3829 @dist_common = uniq (sort for_dist_common (@dist_common));
3830 variable_delete 'DIST_COMMON';
3831 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3833 # Now that we've processed DIST_COMMON, disallow further attempts
3835 $handle_dist_run = 1;
3837 # Scan EXTRA_DIST to see if we need to distribute anything from a
3838 # subdir. If so, add it to the list. I didn't want to do this
3839 # originally, but there were so many requests that I finally
3841 my $extra_dist = var ('EXTRA_DIST');
3843 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3844 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3846 # If the target 'dist-hook' exists, make sure it is run. This
3847 # allows users to do random weird things to the distribution
3848 # before it is packaged up.
3849 push (@dist_targets, 'dist-hook')
3850 if user_phony_rule 'dist-hook';
3851 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3853 my $flm = option ('filename-length-max');
3854 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3856 $output_rules .= &file_contents ('distdir',
3857 new Automake::Location,
3859 FILENAME_FILTER => $filename_filter);
3863 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3864 # -------------------------------------------------------
3865 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3866 # name. Use $WHERE as a location in the diagnostic, if any.
3867 sub check_directory ($$;$)
3869 my ($dir, $where, $reldir) = @_;
3870 $reldir = '.' unless defined $reldir;
3872 error $where, "required directory $reldir/$dir does not exist"
3873 unless -d "$reldir/$dir";
3875 # If an 'obj/' directory exists, BSD make will enter it before
3876 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3882 # % cat obj/Makefile
3888 # % pmake # BSD make
3891 msg ('portability', $where,
3892 "naming a subdirectory 'obj' causes troubles with BSD make")
3895 # 'aux' is probably the most important of the following forbidden name,
3896 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3897 msg ('portability', $where,
3898 "name '$dir' is reserved on W32 and DOS platforms")
3899 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3902 # check_directories_in_var ($VARIABLE)
3903 # ------------------------------------
3904 # Recursively check all items in variables $VARIABLE as directories
3905 sub check_directories_in_var ($)
3908 $var->traverse_recursively
3911 my ($var, $val, $cond, $full_cond) = @_;
3912 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3916 skip_ac_subst => 1);
3919 # &handle_subdirs ()
3920 # ------------------
3921 # Handle subdirectories.
3922 sub handle_subdirs ()
3924 my $subdirs = var ('SUBDIRS');
3928 check_directories_in_var $subdirs;
3930 my $dsubdirs = var ('DIST_SUBDIRS');
3931 check_directories_in_var $dsubdirs
3934 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3935 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3939 # ($REGEN, @DEPENDENCIES)
3942 # If aclocal.m4 creation is automated, return the list of its dependencies.
3943 sub scan_aclocal_m4 ()
3945 my $regen_aclocal = 0;
3947 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3948 set_seen 'CONFIGURE_DEPENDENCIES';
3950 if (-f 'aclocal.m4')
3952 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3954 my $aclocal = new Automake::XFile "< aclocal.m4";
3955 my $line = $aclocal->getline;
3956 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3961 if (set_seen ('ACLOCAL_M4_SOURCES'))
3963 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3964 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3965 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
3966 . "It should be safe to simply remove it");
3969 # Note that it might be possible that aclocal.m4 doesn't exist but
3970 # should be auto-generated. This case probably isn't very
3973 return ($regen_aclocal, @ac_deps);
3977 # Helper function for substitute_ac_subst_variables.
3978 sub substitute_ac_subst_variables_worker($)
3981 return "\@$token\@" if var $token;
3982 return "\${$token\}";
3985 # substitute_ac_subst_variables ($TEXT)
3986 # -------------------------------------
3987 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3989 sub substitute_ac_subst_variables ($)
3992 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3997 # &prepend_srcdir (@INPUTS)
3998 # -------------------------
3999 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4000 # if an input file has a directory part the same as the current
4001 # directory, then the directory part is simply replaced by $(srcdir).
4002 # But if the directory part is different, then $(top_srcdir) is
4004 sub prepend_srcdir (@)
4009 foreach my $single (@inputs)
4011 if (dirname ($single) eq $relative_dir)
4013 push (@newinputs, '$(srcdir)/' . basename ($single));
4017 push (@newinputs, '$(top_srcdir)/' . $single);
4024 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4025 # ---------------------------------------------------
4026 # Compute a list of dependencies appropriate for the rebuild
4028 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4029 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4030 sub rewrite_inputs_into_dependencies ($@)
4032 my ($file, @inputs) = @_;
4037 # We cannot create dependencies on shell variables.
4038 next if (substitute_ac_subst_variables $i) =~ /\$/;
4040 if (exists $ac_config_files_location{$i} && $i ne $file)
4042 my $di = dirname $i;
4043 if ($di eq $relative_dir)
4047 # In the top-level Makefile we do not use $(top_builddir), because
4048 # we are already there, and since the targets are built without
4049 # a $(top_builddir), it helps BSD Make to match them with
4051 elsif ($relative_dir ne '.')
4053 $i = '$(top_builddir)/' . $i;
4058 msg ('error', $ac_config_files_location{$file},
4059 "required file '$i' not found")
4060 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4061 ($i) = prepend_srcdir ($i);
4062 push_dist_common ($i);
4071 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4072 # ------------------------------------------------------------------
4073 # Handle remaking and configure stuff.
4074 # We need the name of the input file, to do proper remaking rules.
4075 sub handle_configure ($$$@)
4077 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4079 prog_error 'empty @inputs'
4082 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4084 my $rel_makefile = basename $makefile;
4086 my $colon_infile = ':' . join (':', @inputs);
4087 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4088 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4089 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4090 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4091 @configure_deps, @aclocal_m4_deps,
4092 '$(top_srcdir)/' . $configure_ac);
4093 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4094 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4095 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4098 my $automake_options = '--' . $strictness_name .
4099 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4101 $output_rules .= file_contents
4103 new Automake::Location,
4104 MAKEFILE => $rel_makefile,
4105 'MAKEFILE-DEPS' => "@rewritten",
4106 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4107 'MAKEFILE-IN' => $rel_makefile_in,
4108 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4109 'MAKEFILE-IN-DEPS' => "@include_stack",
4110 'MAKEFILE-AM' => $rel_makefile_am,
4111 'AUTOMAKE-OPTIONS' => $automake_options,
4112 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4113 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4114 VERBOSE => verbose_flag ('GEN'));
4116 if ($relative_dir eq '.')
4118 &push_dist_common ('acconfig.h')
4122 # If we have a configure header, require it.
4124 my @distclean_config;
4125 foreach my $spec (@config_headers)
4128 # $CONFIG_H_PATH: config.h from top level.
4129 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4130 my $config_h_dir = dirname ($config_h_path);
4132 # If the header is in the current directory we want to build
4133 # the header here. Otherwise, if we're at the topmost
4134 # directory and the header's directory doesn't have a
4135 # Makefile, then we also want to build the header.
4136 if ($relative_dir eq $config_h_dir
4137 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4139 my ($cn_sans_dir, $stamp_dir);
4140 if ($relative_dir eq $config_h_dir)
4142 $cn_sans_dir = basename ($config_h_path);
4147 $cn_sans_dir = $config_h_path;
4148 if ($config_h_dir eq '.')
4154 $stamp_dir = $config_h_dir . '/';
4158 # This will also distribute all inputs.
4159 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4161 # Cannot define rebuild rules for filenames with shell variables.
4162 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4164 # Header defined in this directory.
4166 if (-f $config_h_path . '.top')
4168 push (@files, "$cn_sans_dir.top");
4170 if (-f $config_h_path . '.bot')
4172 push (@files, "$cn_sans_dir.bot");
4175 push_dist_common (@files);
4177 # For now, acconfig.h can only appear in the top srcdir.
4178 if (-f 'acconfig.h')
4180 push (@files, '$(top_srcdir)/acconfig.h');
4183 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4185 file_contents ('remake-hdr',
4186 new Automake::Location,
4188 CONFIG_H => $cn_sans_dir,
4189 CONFIG_HIN => $ins[0],
4190 CONFIG_H_DEPS => "@ins",
4191 CONFIG_H_PATH => $config_h_path,
4194 push @distclean_config, $cn_sans_dir, $stamp;
4198 $output_rules .= file_contents ('clean-hdr',
4199 new Automake::Location,
4200 FILES => "@distclean_config")
4201 if @distclean_config;
4203 # Distribute and define mkinstalldirs only if it is already present
4204 # in the package, for backward compatibility (some people may still
4205 # use $(mkinstalldirs)).
4206 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4209 # Use require_file so that any existing script gets updated
4210 # by --force-missing.
4211 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4212 define_variable ('mkinstalldirs',
4213 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4217 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4218 # at least one argument, and $(mkinstalldirs) used to work
4219 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4220 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4223 reject_var ('CONFIG_HEADER',
4224 "'CONFIG_HEADER' is an anachronism; now determined "
4225 . "automatically\nfrom '$configure_ac'");
4228 foreach my $spec (@config_headers)
4230 my ($out, @ins) = split_config_file_spec ($spec);
4231 # Generate CONFIG_HEADER define.
4232 if ($relative_dir eq dirname ($out))
4234 push @config_h, basename ($out);
4238 push @config_h, "\$(top_builddir)/$out";
4241 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4244 # Now look for other files in this directory which must be remade
4245 # by config.status, and generate rules for them.
4246 my @actual_other_files = ();
4247 # These get cleaned only in a VPATH build.
4248 my @actual_other_vpath_files = ();
4249 foreach my $lfile (@other_input_files)
4253 if ($lfile =~ /^([^:]*):(.*)$/)
4255 # This is the ":" syntax of AC_OUTPUT.
4257 @inputs = split (':', $2);
4263 @inputs = $file . '.in';
4266 # Automake files should not be stored in here, but in %MAKE_LIST.
4267 prog_error ("$lfile in \@other_input_files\n"
4268 . "\@other_input_files = (@other_input_files)")
4269 if -f $file . '.am';
4271 my $local = basename ($file);
4273 # We skip files that aren't in this directory. However, if
4274 # the file's directory does not have a Makefile, and we are
4275 # currently doing '.', then we create a rule to rebuild the
4276 # file in the subdir.
4277 my $fd = dirname ($file);
4278 if ($fd ne $relative_dir)
4280 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4290 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4292 # Cannot output rules for shell variables.
4293 next if (substitute_ac_subst_variables $local) =~ /\$/;
4296 my $cond = $ac_config_files_condition{$lfile};
4299 $condstr = $cond->subst_string;
4300 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4301 $ac_config_files_location{$file});
4303 $output_rules .= ($condstr . $local . ': '
4304 . '$(top_builddir)/config.status '
4305 . "@rewritten_inputs\n"
4307 . 'cd $(top_builddir) && '
4308 . '$(SHELL) ./config.status '
4309 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4312 push (@actual_other_files, $local);
4315 # For links we should clean destinations and distribute sources.
4316 foreach my $spec (@config_links)
4318 my ($link, $file) = split /:/, $spec;
4319 # Some people do AC_CONFIG_LINKS($computed). We only handle
4320 # the DEST:SRC form.
4322 my $where = $ac_config_files_location{$link};
4324 # Skip destinations that contain shell variables.
4325 if ((substitute_ac_subst_variables $link) !~ /\$/)
4327 # We skip links that aren't in this directory. However, if
4328 # the link's directory does not have a Makefile, and we are
4329 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4330 # in '.'s Makefile.in.
4331 my $local = basename ($link);
4332 my $fd = dirname ($link);
4333 if ($fd ne $relative_dir)
4335 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4346 push @actual_other_files, $local if $local;
4350 push @actual_other_vpath_files, $local if $local;
4354 # Do not process sources that contain shell variables.
4355 if ((substitute_ac_subst_variables $file) !~ /\$/)
4357 my $fd = dirname ($file);
4359 # We distribute files that are in this directory.
4360 # At the top-level ('.') we also distribute files whose
4361 # directory does not have a Makefile.
4362 if (($fd eq $relative_dir)
4363 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4365 # The following will distribute $file as a side-effect when
4366 # it is appropriate (i.e., when $file is not already an output).
4367 # We do not need the result, just the side-effect.
4368 rewrite_inputs_into_dependencies ($link, $file);
4373 # These files get removed by "make distclean".
4374 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4375 @actual_other_files);
4376 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4377 @actual_other_vpath_files);
4383 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4384 'oldinclude', 'pkginclude',
4388 next unless $_->[1] =~ /\..*$/;
4389 &saw_extension ($&);
4395 return if ! $seen_gettext || $relative_dir ne '.';
4397 my $subdirs = var 'SUBDIRS';
4401 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4405 # Perform some sanity checks to help users get the right setup.
4406 # We disable these tests when po/ doesn't exist in order not to disallow
4407 # unusual gettext setups.
4412 # | 1) If a package doesn't have a directory po/ at top level, it
4413 # | will likely have multiple po/ directories in subpackages.
4415 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4416 # | is used without 'external'. It is also useful to warn for the
4417 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4418 # | warnings apply only to the usual layout of packages, therefore
4419 # | they should both be disabled if no po/ directory is found at
4424 my @subdirs = $subdirs->value_as_list_recursive;
4426 msg_var ('syntax', $subdirs,
4427 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4428 if ! grep ($_ eq 'po', @subdirs);
4430 # intl/ is not required when AM_GNU_GETTEXT is called with the
4431 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4432 msg_var ('syntax', $subdirs,
4433 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4434 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4435 && ! grep ($_ eq 'intl', @subdirs));
4437 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4438 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4439 msg_var ('syntax', $subdirs,
4440 "'intl' should not be in SUBDIRS when "
4441 . "AM_GNU_GETTEXT([external]) is used")
4442 if ($seen_gettext_external && ! $seen_gettext_intl
4443 && grep ($_ eq 'intl', @subdirs));
4446 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4449 # Handle footer elements.
4452 reject_rule ('.SUFFIXES',
4453 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4455 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4456 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4457 # anything else, by sticking it right after the default: target.
4458 $output_header .= ".SUFFIXES:\n";
4459 my $suffixes = var 'SUFFIXES';
4460 my @suffixes = Automake::Rule::suffixes;
4461 if (@suffixes || $suffixes)
4463 # Make sure SUFFIXES has unique elements. Sort them to ensure
4464 # the output remains consistent. However, $(SUFFIXES) is
4465 # always at the start of the list, unsorted. This is done
4466 # because make will choose rules depending on the ordering of
4467 # suffixes, and this lets the user have some control. Push
4468 # actual suffixes, and not $(SUFFIXES). Some versions of make
4469 # do not like variable substitutions on the .SUFFIXES line.
4470 my @user_suffixes = ($suffixes
4471 ? $suffixes->value_as_list_recursive : ());
4473 my %suffixes = map { $_ => 1 } @suffixes;
4474 delete @suffixes{@user_suffixes};
4476 $output_header .= (".SUFFIXES: "
4477 . join (' ', @user_suffixes, sort keys %suffixes)
4481 $output_trailer .= file_contents ('footer', new Automake::Location);
4485 # Generate 'make install' rules.
4486 sub handle_install ()
4488 $output_rules .= &file_contents
4490 new Automake::Location,
4491 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4492 ? (" \$(BUILT_SOURCES)\n"
4493 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4495 'installdirs-local' => (user_phony_rule 'installdirs-local'
4496 ? ' installdirs-local' : ''),
4497 am__installdirs => variable_value ('am__installdirs') || '');
4501 # Deal with all and all-am.
4504 my ($makefile) = @_;
4508 # Put this at the beginning for the sake of non-GNU makes. This
4509 # is still wrong if these makes can run parallel jobs. But it is
4511 unshift (@all, basename ($makefile));
4513 foreach my $spec (@config_headers)
4515 my ($out, @ins) = split_config_file_spec ($spec);
4516 push (@all, basename ($out))
4517 if dirname ($out) eq $relative_dir;
4520 # Install 'all' hooks.
4521 push (@all, "all-local")
4522 if user_phony_rule "all-local";
4524 &pretty_print_rule ("all-am:", "\t\t", @all);
4525 &depend ('.PHONY', 'all-am', 'all');
4530 my @local_headers = ();
4531 push @local_headers, '$(BUILT_SOURCES)'
4532 if var ('BUILT_SOURCES');
4533 foreach my $spec (@config_headers)
4535 my ($out, @ins) = split_config_file_spec ($spec);
4536 push @local_headers, basename ($out)
4537 if dirname ($out) eq $relative_dir;
4542 # We need to make sure config.h is built before we recurse.
4543 # We also want to make sure that built sources are built
4544 # before any ordinary 'all' targets are run. We can't do this
4545 # by changing the order of dependencies to the "all" because
4546 # that breaks when using parallel makes. Instead we handle
4547 # things explicitly.
4548 $output_all .= ("all: @local_headers"
4550 . '$(MAKE) $(AM_MAKEFLAGS) '
4551 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4553 depend ('.MAKE', 'all');
4557 $output_all .= "all: " . (var ('SUBDIRS')
4558 ? 'all-recursive' : 'all-am') . "\n\n";
4563 # &do_check_merge_target ()
4564 # -------------------------
4565 # Handle check merge target specially.
4566 sub do_check_merge_target ()
4568 # Include user-defined local form of target.
4569 push @check_tests, 'check-local'
4570 if user_phony_rule 'check-local';
4572 # The check target must depend on the local equivalent of
4573 # 'all', to ensure all the primary targets are built. Then it
4574 # must build the local check rules.
4575 $output_rules .= "check-am: all-am\n";
4578 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4579 depend ('.MAKE', 'check-am');
4584 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4586 depend ('.MAKE', 'check-am');
4589 depend '.PHONY', 'check', 'check-am';
4590 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4591 $output_rules .= ("check: "
4592 . (var ('BUILT_SOURCES')
4593 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4595 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4597 depend ('.MAKE', 'check')
4598 if var ('BUILT_SOURCES');
4601 # handle_clean ($MAKEFILE)
4602 # ------------------------
4603 # Handle all 'clean' targets.
4604 sub handle_clean ($)
4606 my ($makefile) = @_;
4608 # Clean the files listed in user variables if they exist.
4609 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4610 if var ('MOSTLYCLEANFILES');
4611 $clean_files{'$(CLEANFILES)'} = CLEAN
4612 if var ('CLEANFILES');
4613 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4614 if var ('DISTCLEANFILES');
4615 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4616 if var ('MAINTAINERCLEANFILES');
4618 # Built sources are automatically removed by maintainer-clean.
4619 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4620 if var ('BUILT_SOURCES');
4622 # Compute a list of "rm"s to run for each target.
4623 my %rms = (MOSTLY_CLEAN, [],
4626 MAINTAINER_CLEAN, []);
4628 foreach my $file (keys %clean_files)
4630 my $when = $clean_files{$file};
4631 prog_error 'invalid entry in %clean_files'
4632 unless exists $rms{$when};
4634 my $rm = "rm -f $file";
4635 # If file is a variable, make sure when don't call 'rm -f' without args.
4636 $rm ="test -z \"$file\" || $rm"
4637 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4639 push @{$rms{$when}}, "\t-$rm\n";
4642 $output_rules .= &file_contents
4644 new Automake::Location,
4645 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4646 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4647 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4648 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4649 MAKEFILE => basename $makefile,
4654 # &target_cmp ($A, $B)
4655 # --------------------
4656 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4657 # other '.TARGETS' be last.
4660 return 0 if $a eq $b;
4662 my $a1 = substr ($a, 0, 1);
4663 my $b1 = substr ($b, 0, 1);
4666 return -1 if $b1 eq '.';
4667 return 1 if $a1 eq '.';
4673 # &handle_factored_dependencies ()
4674 # --------------------------------
4675 # Handle everything related to gathered targets.
4676 sub handle_factored_dependencies
4679 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4680 'uninstall-exec-local', 'uninstall-exec-hook',
4681 'uninstall-dvi-local',
4682 'uninstall-html-local',
4683 'uninstall-info-local',
4684 'uninstall-pdf-local',
4685 'uninstall-ps-local')
4689 reject_rule ($utarg, "use '$x', not '$utarg'");
4692 reject_rule ('install-local',
4693 "use 'install-data-local' or 'install-exec-local', "
4694 . "not 'install-local'");
4696 reject_rule ('install-hook',
4697 "use 'install-data-hook' or 'install-exec-hook', "
4698 . "not 'install-hook'");
4700 # Install the -local hooks.
4701 foreach (keys %dependencies)
4703 # Hooks are installed on the -am targets.
4705 depend ("$_-am", "$_-local")
4706 if user_phony_rule "$_-local";
4709 # Install the -hook hooks.
4710 # FIXME: Why not be as liberal as we are with -local hooks?
4711 foreach ('install-exec', 'install-data', 'uninstall')
4713 if (user_phony_rule "$_-hook")
4715 depend ('.MAKE', "$_-am");
4716 register_action("$_-am",
4717 ("\t\@\$(NORMAL_INSTALL)\n"
4718 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4722 # All the required targets are phony.
4723 depend ('.PHONY', keys %required_targets);
4725 # Actually output gathered targets.
4726 foreach (sort target_cmp keys %dependencies)
4728 # If there is nothing about this guy, skip it.
4730 unless (@{$dependencies{$_}}
4732 || $required_targets{$_});
4734 # Define gathered targets in undefined conditions.
4735 # FIXME: Right now we must handle .PHONY as an exception,
4736 # because people write things like
4737 # .PHONY: myphonytarget
4738 # to append dependencies. This would not work if Automake
4739 # refrained from defining its own .PHONY target as it does
4740 # with other overridden targets.
4741 # Likewise for '.MAKE'.
4742 my @undefined_conds = (TRUE,);
4743 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4746 Automake::Rule::define ($_, 'internal',
4747 RULE_AUTOMAKE, TRUE, INTERNAL);
4749 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4750 foreach my $cond (@undefined_conds)
4752 my $condstr = $cond->subst_string;
4753 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4754 $output_rules .= $actions{$_} if defined $actions{$_};
4755 $output_rules .= "\n";
4761 # &handle_tests_dejagnu ()
4762 # ------------------------
4763 sub handle_tests_dejagnu
4765 push (@check_tests, 'check-DEJAGNU');
4766 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4769 sub handle_per_suffix_test
4771 my ($test_suffix, %transform) = @_;
4772 my ($pfx, $generic, $parallel_tests_option, $am_exeext);
4773 prog_error ("called with 'parallel-tests' option not set")
4774 unless $parallel_tests_option = option 'parallel-tests';
4775 if ($test_suffix eq '')
4779 $am_exeext = 'FALSE';
4783 prog_error ("test suffix '$test_suffix' lacks leading dot")
4784 unless $test_suffix =~ m/^\.(.*)/;
4785 $pfx = uc ($1) . '_';
4787 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4790 # The "test driver" program, deputed to handle tests protocol used by
4791 # test scripts. By default, it's assumed that no protocol is used,
4792 # so we fall back to the old "parallel-tests" behaviour, implemented
4793 # by the 'test-driver' auxiliary script.
4794 if (! var "${pfx}LOG_DRIVER")
4796 require_conf_file ($parallel_tests_option->{position}, FOREIGN,
4798 define_variable ("${pfx}LOG_DRIVER",
4799 "\$(SHELL) $am_config_aux_dir/test-driver",
4802 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4803 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4804 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4805 my $compile = "${pfx}LOG_COMPILE";
4806 define_variable ($compile,
4807 '$(' . $pfx . 'LOG_COMPILER)'
4808 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4809 . ' $(' . $pfx . 'LOG_FLAGS)',
4811 $output_rules .= file_contents ('check2', new Automake::Location,
4812 GENERIC => $generic,
4814 DRIVER_FLAGS => $driver_flags,
4815 COMPILE => '$(' . $compile . ')',
4816 EXT => $test_suffix,
4817 am__EXEEXT => $am_exeext,
4821 # is_valid_test_extension ($EXT)
4822 # ------------------------------
4823 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4825 sub is_valid_test_extension ($)
4829 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4831 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4835 # Handle TESTS variable and other checks.
4838 if (option 'dejagnu')
4840 &handle_tests_dejagnu;
4844 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4846 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4847 . "'AUTOMAKE_OPTIONS'");
4853 push (@check_tests, 'check-TESTS');
4854 my $check_deps = "@check";
4855 $output_rules .= &file_contents ('check', new Automake::Location,
4856 COLOR => !! option 'color-tests',
4857 PARALLEL_TESTS => !! option 'parallel-tests',
4858 CHECK_DEPS => $check_deps);
4860 # Tests that are known programs should have $(EXEEXT) appended.
4861 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4862 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4863 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4864 if (var ('XFAIL_TESTS'));
4866 if (my $parallel_tests = option 'parallel-tests')
4868 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4871 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4874 $at_exeext = subst ('EXEEXT');
4875 $suff = $at_exeext . ' ' . $suff;
4877 if (! var 'TEST_EXTENSIONS')
4879 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4881 my $var = var 'TEST_EXTENSIONS';
4882 # Currently, we are not able to deal with conditional contents
4883 # in TEST_EXTENSIONS.
4884 if ($var->has_conditional_contents)
4886 msg_var 'unsupported', $var,
4887 "'TEST_EXTENSIONS' cannot have conditional contents";
4889 my @test_suffixes = $var->value_as_list_recursive;
4890 if ((my @invalid_test_suffixes =
4891 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4893 error $var->rdef (TRUE)->location,
4894 "invalid test extensions: @invalid_test_suffixes";
4896 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4899 unshift (@test_suffixes, $at_exeext)
4900 unless $test_suffixes[0] eq $at_exeext;
4902 unshift (@test_suffixes, '');
4904 transform_variable_recursively
4905 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4907 my ($subvar, $val, $cond, $full_cond) = @_;
4910 if $val =~ /^\@.*\@$/;
4911 $obj =~ s/\$\(EXEEXT\)$//o;
4913 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4915 msg ('error', $subvar->rdef ($cond)->location,
4916 "parallel-tests: using '$1' in TESTS is currently broken: '$val'");
4919 foreach my $test_suffix (@test_suffixes)
4922 if $test_suffix eq $at_exeext || $test_suffix eq '';
4923 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4924 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4928 handle_per_suffix_test ('',
4938 my $last_suffix = $test_suffixes[$#test_suffixes];
4940 foreach my $test_suffix (@test_suffixes)
4942 if ($test_suffix eq $last_suffix)
4948 $cur = 'am__test_logs' . $nhelper;
4950 define_variable ($cur,
4951 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4955 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4957 handle_per_suffix_test ($test_suffix,
4963 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4964 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4965 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
4970 # Handle Emacs Lisp.
4971 sub handle_emacs_lisp
4973 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4976 return if ! @elfiles;
4978 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4979 map { $_->[1] } @elfiles);
4980 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4981 '$(am__ELFILES:.el=.elc)');
4982 # This one can be overridden by users.
4983 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4985 push @all, '$(ELCFILES)';
4987 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4988 'EMACS', 'lispdir');
4989 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4990 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4996 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4998 return if ! @pyfiles;
5000 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5001 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5002 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5008 my @sourcelist = &am_install_var ('-candist',
5011 return if ! @sourcelist;
5013 my @prefixes = am_primary_prefixes ('JAVA', 1,
5017 my @java_sources = ();
5018 foreach my $prefix (@prefixes)
5020 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5023 if $curs eq 'EXTRA';
5025 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5029 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5030 unless $curs eq $dir;
5036 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5039 if ($dir eq 'check')
5041 push (@check, "class$dir.stamp");
5045 push (@all, "class$dir.stamp");
5050 # Handle some of the minor options.
5051 sub handle_minor_options
5053 if (option 'readme-alpha')
5055 if ($relative_dir eq '.')
5057 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5059 msg ('error-gnits', $package_version_location,
5060 "version '$package_version' doesn't follow " .
5063 if (defined $1 && -f 'README-alpha')
5065 # This means we have an alpha release. See
5066 # GNITS_VERSION_PATTERN for details.
5067 push_dist_common ('README-alpha');
5073 ################################################################
5075 # ($OUTPUT, @INPUTS)
5076 # &split_config_file_spec ($SPEC)
5077 # -------------------------------
5078 # Decode the Autoconf syntax for config files (files, headers, links
5080 sub split_config_file_spec ($)
5083 my ($output, @inputs) = split (/:/, $spec);
5085 push @inputs, "$output.in"
5088 return ($output, @inputs);
5092 # locate_am (@POSSIBLE_SOURCES)
5093 # -----------------------------
5094 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5095 # This functions returns the first *.in file for which a *.am exists.
5096 # It returns undef otherwise.
5101 foreach my $file (@rest)
5103 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5114 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5115 # ---------------------------------------------------
5116 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5118 sub scan_autoconf_config_files ($$)
5120 my ($where, $config_files) = @_;
5122 # Look at potential Makefile.am's.
5123 foreach (split ' ', $config_files)
5125 # Must skip empty string for Perl 4.
5126 next if $_ eq "\\" || $_ eq '';
5128 # Handle $local:$input syntax.
5129 my ($local, @rest) = split (/:/);
5130 @rest = ("$local.in",) unless @rest;
5131 # Keep in sync with 'conffile-leading-dot.test'.
5132 msg ('unsupported', $where,
5133 "omit leading './' from config file names such as '$local';"
5134 . "\nremake rules might be subtly broken otherwise")
5135 if ($local =~ /^\.\//);
5136 my $input = locate_am @rest;
5139 # We have a file that automake should generate.
5140 $make_list{$input} = join (':', ($local, @rest));
5144 # We have a file that automake should cause to be
5145 # rebuilt, but shouldn't generate itself.
5146 push (@other_input_files, $_);
5148 $ac_config_files_location{$local} = $where;
5149 $ac_config_files_condition{$local} =
5150 new Automake::Condition (@cond_stack)
5156 # &scan_autoconf_traces ($FILENAME)
5157 # ---------------------------------
5158 sub scan_autoconf_traces ($)
5160 my ($filename) = @_;
5162 # Macros to trace, with their minimal number of arguments.
5164 # IMPORTANT: If you add a macro here, you should also add this macro
5165 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5167 AC_CANONICAL_BUILD => 0,
5168 AC_CANONICAL_HOST => 0,
5169 AC_CANONICAL_TARGET => 0,
5170 AC_CONFIG_AUX_DIR => 1,
5171 AC_CONFIG_FILES => 1,
5172 AC_CONFIG_HEADERS => 1,
5173 AC_CONFIG_LIBOBJ_DIR => 1,
5174 AC_CONFIG_LINKS => 1,
5178 AC_REQUIRE_AUX_FILE => 1,
5179 AC_SUBST_TRACE => 1,
5180 AM_AUTOMAKE_VERSION => 1,
5181 AM_CONDITIONAL => 2,
5182 AM_GNU_GETTEXT => 0,
5183 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5184 AM_INIT_AUTOMAKE => 0,
5185 AM_MAINTAINER_MODE => 0,
5187 AM_PROG_CC_C_O => 0,
5188 _AM_SUBST_NOTMAKE => 1,
5191 _AM_COND_ENDIF => 1,
5192 LT_SUPPORTED_TAG => 1,
5193 _LT_AC_TAGCONFIG => 0,
5199 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5201 # Use a separator unlikely to be used, not ':', the default, which
5202 # has a precise meaning for AC_CONFIG_FILES and so on.
5203 $traces .= join (' ',
5204 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5207 my $tracefh = new Automake::XFile ("$traces $filename |");
5208 verb "reading $traces";
5213 while ($_ = $tracefh->getline)
5216 my ($here, $depth, @args) = split (/::/);
5217 $where = new Automake::Location $here;
5218 my $macro = $args[0];
5220 prog_error ("unrequested trace '$macro'")
5221 unless exists $traced{$macro};
5223 # Skip and diagnose malformed calls.
5224 if ($#args < $traced{$macro})
5226 msg ('syntax', $where, "not enough arguments for $macro");
5230 # Alphabetical ordering please.
5231 if ($macro eq 'AC_CANONICAL_BUILD')
5233 if ($seen_canonical <= AC_CANONICAL_BUILD)
5235 $seen_canonical = AC_CANONICAL_BUILD;
5236 $canonical_location = $where;
5239 elsif ($macro eq 'AC_CANONICAL_HOST')
5241 if ($seen_canonical <= AC_CANONICAL_HOST)
5243 $seen_canonical = AC_CANONICAL_HOST;
5244 $canonical_location = $where;
5247 elsif ($macro eq 'AC_CANONICAL_TARGET')
5249 $seen_canonical = AC_CANONICAL_TARGET;
5250 $canonical_location = $where;
5252 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5254 if ($seen_init_automake)
5256 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5257 . "AM_INIT_AUTOMAKE ...", partial => 1);
5258 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5260 $config_aux_dir = $args[1];
5261 $config_aux_dir_set_in_configure_ac = 1;
5262 check_directory ($config_aux_dir, $where);
5264 elsif ($macro eq 'AC_CONFIG_FILES')
5266 # Look at potential Makefile.am's.
5267 scan_autoconf_config_files ($where, $args[1]);
5269 elsif ($macro eq 'AC_CONFIG_HEADERS')
5271 foreach my $spec (split (' ', $args[1]))
5273 my ($dest, @src) = split (':', $spec);
5274 $ac_config_files_location{$dest} = $where;
5275 push @config_headers, $spec;
5278 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5280 $config_libobj_dir = $args[1];
5281 check_directory ($config_libobj_dir, $where);
5283 elsif ($macro eq 'AC_CONFIG_LINKS')
5285 foreach my $spec (split (' ', $args[1]))
5287 my ($dest, $src) = split (':', $spec);
5288 $ac_config_files_location{$dest} = $where;
5289 push @config_links, $spec;
5292 elsif ($macro eq 'AC_FC_SRCEXT')
5294 my $suffix = $args[1];
5295 # These flags are used as %SOURCEFLAG% in depend2.am,
5296 # where the trailing space is important.
5297 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5298 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5300 elsif ($macro eq 'AC_INIT')
5302 if (defined $args[2])
5304 $package_version = $args[2];
5305 $package_version_location = $where;
5308 elsif ($macro eq 'AC_LIBSOURCE')
5310 $libsources{$args[1]} = $here;
5312 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5314 # Only remember the first time a file is required.
5315 $required_aux_file{$args[1]} = $where
5316 unless exists $required_aux_file{$args[1]};
5318 elsif ($macro eq 'AC_SUBST_TRACE')
5320 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5321 # AC_SUBST(5), then too bad.
5322 $configure_vars{$args[1]} = $where
5323 if $args[1] =~ /^\w+$/;
5325 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5328 "version mismatch. This is Automake $VERSION,\n" .
5329 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5330 "comes from Automake $args[1]. You should recreate\n" .
5331 "aclocal.m4 with aclocal and run automake again.\n",
5332 # $? = 63 is used to indicate version mismatch to missing.
5334 if $VERSION ne $args[1];
5336 $seen_automake_version = 1;
5338 elsif ($macro eq 'AM_CONDITIONAL')
5340 $configure_cond{$args[1]} = $where;
5342 elsif ($macro eq 'AM_GNU_GETTEXT')
5344 $seen_gettext = $where;
5345 $ac_gettext_location = $where;
5346 $seen_gettext_external = grep ($_ eq 'external', @args);
5348 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5350 $seen_gettext_intl = $where;
5352 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5354 $seen_init_automake = $where;
5355 if (defined $args[2])
5357 $package_version = $args[2];
5358 $package_version_location = $where;
5360 elsif (defined $args[1])
5362 my @opts = split (' ', $args[1]);
5363 @opts = map { { option => $_, where => $where } } @opts;
5364 exit $exit_code if process_global_option_list (@opts);
5367 elsif ($macro eq 'AM_MAINTAINER_MODE')
5369 $seen_maint_mode = $where;
5371 elsif ($macro eq 'AM_PROG_AR')
5375 elsif ($macro eq 'AM_PROG_CC_C_O')
5377 $seen_cc_c_o = $where;
5379 elsif ($macro eq '_AM_COND_IF')
5381 cond_stack_if ('', $args[1], $where);
5382 error ($where, "missing m4 quoting, macro depth $depth")
5385 elsif ($macro eq '_AM_COND_ELSE')
5387 cond_stack_else ('!', $args[1], $where);
5388 error ($where, "missing m4 quoting, macro depth $depth")
5391 elsif ($macro eq '_AM_COND_ENDIF')
5393 cond_stack_endif (undef, undef, $where);
5394 error ($where, "missing m4 quoting, macro depth $depth")
5397 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5399 $ignored_configure_vars{$args[1]} = $where;
5401 elsif ($macro eq 'm4_include'
5402 || $macro eq 'm4_sinclude'
5403 || $macro eq 'sinclude')
5405 # Skip missing 'sinclude'd files.
5406 next if $macro ne 'm4_include' && ! -f $args[1];
5408 # Some modified versions of Autoconf don't use
5409 # frozen files. Consequently it's possible that we see all
5410 # m4_include's performed during Autoconf's startup.
5411 # Obviously we don't want to distribute Autoconf's files
5412 # so we skip absolute filenames here.
5413 push @configure_deps, '$(top_srcdir)/' . $args[1]
5414 unless $here =~ m,^(?:\w:)?[\\/],;
5415 # Keep track of the greatest timestamp.
5418 my $mtime = mtime $args[1];
5419 $configure_deps_greatest_timestamp = $mtime
5420 if $mtime > $configure_deps_greatest_timestamp;
5423 elsif ($macro eq 'LT_SUPPORTED_TAG')
5425 $libtool_tags{$args[1]} = 1;
5426 $libtool_new_api = 1;
5428 elsif ($macro eq '_LT_AC_TAGCONFIG')
5430 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5431 # We use it to detect whether tags are supported. Our
5432 # preferred interface is LT_SUPPORTED_TAG, but it was
5433 # introduced in Libtool 1.6.
5434 if (0 == keys %libtool_tags)
5436 # Hardcode the tags supported by Libtool 1.5.
5437 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5442 error ($where, "condition stack not properly closed")
5449 # &scan_autoconf_files ()
5450 # -----------------------
5451 # Check whether we use 'configure.ac' or 'configure.in'.
5452 # Scan it (and possibly 'aclocal.m4') for interesting things.
5453 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5454 sub scan_autoconf_files ()
5456 # Reinitialize libsources here. This isn't really necessary,
5457 # since we currently assume there is only one configure.ac. But
5458 # that won't always be the case.
5461 # Keep track of the youngest configure dependency.
5462 $configure_deps_greatest_timestamp = mtime $configure_ac;
5463 if (-e 'aclocal.m4')
5465 my $mtime = mtime 'aclocal.m4';
5466 $configure_deps_greatest_timestamp = $mtime
5467 if $mtime > $configure_deps_greatest_timestamp;
5470 scan_autoconf_traces ($configure_ac);
5472 @configure_input_files = sort keys %make_list;
5473 # Set input and output files if not specified by user.
5476 @input_files = @configure_input_files;
5477 %output_files = %make_list;
5481 if (! $seen_init_automake)
5483 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5484 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5485 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5486 . "and that aclocal.m4 was recently regenerated "
5487 . "(using aclocal)");
5491 if (! $seen_automake_version)
5493 if (-f 'aclocal.m4')
5495 error ($seen_init_automake,
5496 "your implementation of AM_INIT_AUTOMAKE comes from " .
5497 "an\nold Automake version. You should recreate " .
5498 "aclocal.m4\nwith aclocal and run automake again",
5499 # $? = 63 is used to indicate version mismatch to missing.
5504 error ($seen_init_automake,
5505 "no proper implementation of AM_INIT_AUTOMAKE was " .
5506 "found,\nprobably because aclocal.m4 is missing.\n" .
5507 "You should run aclocal to create this file, then\n" .
5508 "run automake again");
5515 # Look for some files we need. Always check for these. This
5516 # check must be done for every run, even those where we are only
5517 # looking at a subdir Makefile. We must set relative_dir for
5518 # push_required_file to work.
5519 # Sort the files for stable verbose output.
5520 $relative_dir = '.';
5521 foreach my $file (sort keys %required_aux_file)
5523 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5525 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5526 if -f $config_aux_dir . '/install.sh';
5528 # Preserve dist_common for later.
5529 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5533 ################################################################
5535 # Do any extra checking for GNU standards.
5536 sub check_gnu_standards
5538 if ($relative_dir eq '.')
5540 # In top level (or only) directory.
5541 require_file ("$am_file.am", GNU,
5542 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5544 # Accept one of these three licenses; default to COPYING.
5545 # Make sure we do not overwrite an existing license.
5547 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5555 require_file ("$am_file.am", GNU, 'COPYING')
5559 for my $opt ('no-installman', 'no-installinfo')
5561 msg ('error-gnu', option $opt,
5562 "option '$opt' disallowed by GNU standards")
5567 # Do any extra checking for GNITS standards.
5568 sub check_gnits_standards
5570 if ($relative_dir eq '.')
5572 # In top level (or only) directory.
5573 require_file ("$am_file.am", GNITS, 'THANKS');
5577 ################################################################
5579 # Functions to handle files of each language.
5581 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5582 # simple formula: Return value is LANG_SUBDIR if the resulting object
5583 # file should be in a subdir if the source file is, LANG_PROCESS if
5584 # file is to be dealt with, LANG_IGNORE otherwise.
5586 # Much of the actual processing is handled in
5587 # handle_single_transform. These functions exist so that
5588 # auxiliary information can be recorded for a later cleanup pass.
5589 # Note that the calls to these functions are computed, so don't bother
5590 # searching for their precise names in the source.
5592 # This is just a convenience function that can be used to determine
5593 # when a subdir object should be used.
5596 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5599 # Rewrite a single C source file.
5602 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5604 my $r = LANG_PROCESS;
5605 if (option 'subdir-objects')
5608 if ($directory && $directory ne '.')
5610 $base = $directory . '/' . $base;
5612 # libtool is always able to put the object at the proper place,
5613 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5614 msg_var ('portability', $var,
5615 "compiling '$base.c' in subdir requires "
5616 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5617 uniq_scope => US_GLOBAL,
5618 uniq_part => 'AM_PROG_CC_C_O subdir')
5619 unless $seen_cc_c_o || $obj eq '.lo';
5624 && $have_per_exec_flags
5625 && ! option 'subdir-objects'
5628 msg_var ('portability',
5629 $var, "compiling '$base.c' with per-target flags requires "
5630 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5631 uniq_scope => US_GLOBAL,
5632 uniq_part => 'AM_PROG_CC_C_O per-target')
5638 # Rewrite a single C++ source file.
5639 sub lang_cxx_rewrite
5641 return &lang_sub_obj;
5644 # Rewrite a single header file.
5645 sub lang_header_rewrite
5647 # Header files are simply ignored.
5651 # Rewrite a single Vala source file.
5652 sub lang_vala_rewrite
5654 my ($directory, $base, $ext) = @_;
5656 (my $newext = $ext) =~ s/vala$/c/;
5657 return (LANG_SUBDIR, $newext);
5660 # Rewrite a single yacc file.
5661 sub lang_yacc_rewrite
5663 my ($directory, $base, $ext) = @_;
5665 my $r = &lang_sub_obj;
5666 (my $newext = $ext) =~ tr/y/c/;
5667 return ($r, $newext);
5670 # Rewrite a single yacc++ file.
5671 sub lang_yaccxx_rewrite
5673 my ($directory, $base, $ext) = @_;
5675 my $r = &lang_sub_obj;
5676 (my $newext = $ext) =~ tr/y/c/;
5677 return ($r, $newext);
5680 # Rewrite a single lex file.
5681 sub lang_lex_rewrite
5683 my ($directory, $base, $ext) = @_;
5685 my $r = &lang_sub_obj;
5686 (my $newext = $ext) =~ tr/l/c/;
5687 return ($r, $newext);
5690 # Rewrite a single lex++ file.
5691 sub lang_lexxx_rewrite
5693 my ($directory, $base, $ext) = @_;
5695 my $r = &lang_sub_obj;
5696 (my $newext = $ext) =~ tr/l/c/;
5697 return ($r, $newext);
5700 # Rewrite a single assembly file.
5701 sub lang_asm_rewrite
5703 return &lang_sub_obj;
5706 # Rewrite a single preprocessed assembly file.
5707 sub lang_cppasm_rewrite
5709 return &lang_sub_obj;
5712 # Rewrite a single Fortran 77 file.
5713 sub lang_f77_rewrite
5715 return &lang_sub_obj;
5718 # Rewrite a single Fortran file.
5721 return &lang_sub_obj;
5724 # Rewrite a single preprocessed Fortran file.
5725 sub lang_ppfc_rewrite
5727 return &lang_sub_obj;
5730 # Rewrite a single preprocessed Fortran 77 file.
5731 sub lang_ppf77_rewrite
5733 return &lang_sub_obj;
5736 # Rewrite a single ratfor file.
5737 sub lang_ratfor_rewrite
5739 return &lang_sub_obj;
5742 # Rewrite a single Objective C file.
5743 sub lang_objc_rewrite
5745 return &lang_sub_obj;
5748 # Rewrite a single Unified Parallel C file.
5749 sub lang_upc_rewrite
5751 return &lang_sub_obj;
5754 # Rewrite a single Java file.
5755 sub lang_java_rewrite
5760 # The lang_X_finish functions are called after all source file
5761 # processing is done. Each should handle defining rules for the
5762 # language, etc. A finish function is only called if a source file of
5763 # the appropriate type has been seen.
5765 sub lang_vala_finish_target ($$)
5767 my ($self, $name) = @_;
5769 my $derived = canonicalize ($name);
5770 my $var = var "${derived}_SOURCES";
5773 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5775 # For automake bug#11229.
5776 return unless @vala_sources;
5778 foreach my $vala_file (@vala_sources)
5780 my $c_file = $vala_file;
5781 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5783 $c_file = "\$(srcdir)/$c_file";
5784 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5785 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5786 . "\t\@if test -f \$@; then :; else \\\n"
5787 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5789 $clean_files{$c_file} = MAINTAINER_CLEAN;
5793 # Add rebuild rules for generated header and vapi files
5794 my $flags = var ($derived . '_VALAFLAGS');
5798 foreach my $flag ($flags->value_as_list_recursive)
5800 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5801 '--vapi', '--internal-vapi', '--gir')))
5803 my $headerfile = "\$(srcdir)/$flag";
5804 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5805 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5806 . "\t\@if test -f \$@; then :; else \\\n"
5807 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5810 # valac is not used when building from dist tarballs
5811 # distribute the generated files
5812 push_dist_common ($headerfile);
5813 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5819 my $compile = $self->compile;
5821 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5822 # rule into '${derived}_VALAFLAGS' if it exists.
5823 my $val = "${derived}_VALAFLAGS";
5824 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5827 # VALAFLAGS is a user variable (per GNU Standards),
5828 # it should not be overridden in the Makefile...
5829 check_user_variables 'VALAFLAGS';
5831 my $dirname = dirname ($name);
5833 # Only generate C code, do not run C compiler
5836 my $verbose = verbose_flag ('VALAC');
5837 my $silent = silent_flag ();
5838 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5841 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5842 # Since the C files generated from the vala sources depend on the
5843 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5844 # those of the C files generated by the valac invocation below (this is
5845 # especially important on systems with sub-second timestamp resolution).
5846 # Thus we need to create the stamp file *before* invoking valac, and to
5847 # move it to its final location only after valac has been invoked.
5848 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5849 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5850 "\t${silent}mv -f \$\@-t \$\@\n";
5852 push_dist_common ($stampfile);
5854 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5857 # Add output rules to invoke valac and create stamp file as a witness
5858 # to handle multiple outputs. This function is called after all source
5859 # file processing is done.
5860 sub lang_vala_finish
5864 foreach my $prog (keys %known_programs)
5866 lang_vala_finish_target ($self, $prog);
5869 while (my ($name) = each %known_libraries)
5871 lang_vala_finish_target ($self, $name);
5875 # The built .c files should be cleaned only on maintainer-clean
5876 # as the .c files are distributed. This function is called for each
5877 # .vala source file.
5878 sub lang_vala_target_hook
5880 my ($self, $aggregate, $output, $input, %transform) = @_;
5882 $clean_files{$output} = MAINTAINER_CLEAN;
5885 # This is a yacc helper which is called whenever we have decided to
5886 # compile a yacc file.
5887 sub lang_yacc_target_hook
5889 my ($self, $aggregate, $output, $input, %transform) = @_;
5891 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5892 # have to to generate special code.
5893 my $yflags_contains_minus_d = 0;
5895 foreach my $pfx ("", "${aggregate}_")
5897 my $yflagsvar = var ("${pfx}YFLAGS");
5898 next unless $yflagsvar;
5899 # We cannot work reliably with conditionally-defined YFLAGS.
5900 if ($yflagsvar->has_conditional_contents)
5902 msg_var ('unsupported', $yflagsvar,
5903 "'${pfx}YFLAGS' cannot have conditional contents");
5907 $yflags_contains_minus_d = 1
5908 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5912 if ($yflags_contains_minus_d)
5914 # Found a '-d' that applies to the compilation of this file.
5915 # Add a dependency for the generated header file, and arrange
5916 # for that file to be included in the distribution.
5918 # The extension of the output file (e.g., '.c' or '.cxx').
5919 # We'll need it to compute the name of the generated header file.
5920 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5922 # We know that a yacc input should be turned into either a C or
5923 # C++ output file. We depend on this fact (here and in yacc.am),
5924 # so check that it really holds.
5925 my $lang = $languages{$extension_map{$output_ext}};
5926 prog_error "invalid output name '$output' for yacc file '$input'"
5927 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5929 (my $header_ext = $output_ext) =~ s/c/h/g;
5930 # Quote $output_ext in the regexp, so that dots in it are taken
5931 # as literal dots, not as metacharacters.
5932 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5934 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5935 RULE_AUTOMAKE, TRUE,
5938 my $condstr = $cond->subst_string;
5940 "$condstr${header}: $output\n"
5941 # Recover from removal of $header
5942 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5943 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5945 # Distribute the generated file, unless its .y source was
5946 # listed in a nodist_ variable. (&handle_source_transform
5947 # will set DIST_SOURCE.)
5948 &push_dist_common ($header)
5949 if $transform{'DIST_SOURCE'};
5951 # The GNU rules say that yacc/lex output files should be removed
5952 # by maintainer-clean. However, if the files are not distributed,
5953 # then we want to remove them with "make clean"; otherwise,
5954 # "make distcheck" will fail.
5955 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5957 # See the comment above for $HEADER.
5958 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5961 # This is a lex helper which is called whenever we have decided to
5962 # compile a lex file.
5963 sub lang_lex_target_hook
5965 my ($self, $aggregate, $output, $input, %transform) = @_;
5966 # The GNU rules say that yacc/lex output files should be removed
5967 # by maintainer-clean. However, if the files are not distributed,
5968 # then we want to remove them with "make clean"; otherwise,
5969 # "make distcheck" will fail.
5970 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5973 # This is a helper for both lex and yacc.
5974 sub yacc_lex_finish_helper
5976 return if defined $language_scratch{'lex-yacc-done'};
5977 $language_scratch{'lex-yacc-done'} = 1;
5979 # FIXME: for now, no line number.
5980 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5981 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5984 sub lang_yacc_finish
5986 return if defined $language_scratch{'yacc-done'};
5987 $language_scratch{'yacc-done'} = 1;
5989 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5991 yacc_lex_finish_helper;
5997 return if defined $language_scratch{'lex-done'};
5998 $language_scratch{'lex-done'} = 1;
6000 yacc_lex_finish_helper;
6004 # Given a hash table of linker names, pick the name that has the most
6005 # precedence. This is lame, but something has to have global
6006 # knowledge in order to eliminate the conflict. Add more linkers as
6012 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6014 return $l if defined $linkers{$l};
6019 # Called to indicate that an extension was used.
6023 if (! defined $extension_seen{$ext})
6025 $extension_seen{$ext} = 1;
6029 ++$extension_seen{$ext};
6033 # Return the number of files seen for a given language. Knows about
6034 # special cases we care about. FIXME: this is hideous. We need
6035 # something that involves real language objects. For instance yacc
6036 # and yaccxx could both derive from a common yacc class which would
6037 # know about the strange ylwrap requirement. (Or better yet we could
6038 # just not support legacy yacc!)
6039 sub count_files_for_language
6044 if ($name eq 'yacc' || $name eq 'yaccxx')
6046 @names = ('yacc', 'yaccxx');
6048 elsif ($name eq 'lex' || $name eq 'lexxx')
6050 @names = ('lex', 'lexxx');
6058 foreach $name (@names)
6060 my $lang = $languages{$name};
6061 foreach my $ext (@{$lang->extensions})
6063 $r += $extension_seen{$ext}
6064 if defined $extension_seen{$ext};
6071 # Called to ask whether source files have been seen . If HEADERS is 1,
6072 # headers can be included.
6077 # count all the sources
6079 foreach my $val (values %extension_seen)
6086 $count -= count_files_for_language ('header');
6093 # register_language (%ATTRIBUTE)
6094 # ------------------------------
6095 # Register a single language.
6096 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6097 sub register_language (%)
6102 $option{'autodep'} = 'no'
6103 unless defined $option{'autodep'};
6104 $option{'linker'} = ''
6105 unless defined $option{'linker'};
6106 $option{'flags'} = []
6107 unless defined $option{'flags'};
6108 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6109 unless defined $option{'output_extensions'};
6110 $option{'nodist_specific'} = 0
6111 unless defined $option{'nodist_specific'};
6113 my $lang = new Language (%option);
6116 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6117 $languages{$lang->name} = $lang;
6118 my $link = $lang->linker;
6121 if (exists $link_languages{$link})
6123 prog_error ("'$link' has different definitions in "
6124 . $lang->name . " and " . $link_languages{$link}->name)
6125 if $lang->link ne $link_languages{$link}->link;
6129 $link_languages{$link} = $lang;
6133 # Update the pattern of known extensions.
6134 accept_extensions (@{$lang->extensions});
6136 # Upate the $suffix_rule map.
6137 foreach my $suffix (@{$lang->extensions})
6139 foreach my $dest (&{$lang->output_extensions} ($suffix))
6141 register_suffix_rule (INTERNAL, $suffix, $dest);
6146 # derive_suffix ($EXT, $OBJ)
6147 # --------------------------
6148 # This function is used to find a path from a user-specified suffix $EXT
6149 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6150 sub derive_suffix ($$)
6152 my ($source_ext, $obj) = @_;
6154 while (! $extension_map{$source_ext}
6155 && $source_ext ne $obj
6156 && exists $suffix_rules->{$source_ext}
6157 && exists $suffix_rules->{$source_ext}{$obj})
6159 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6166 ################################################################
6168 # Pretty-print something and append to output_rules.
6169 sub pretty_print_rule
6171 $output_rules .= &makefile_wrap (@_);
6175 ################################################################
6178 ## -------------------------------- ##
6179 ## Handling the conditional stack. ##
6180 ## -------------------------------- ##
6184 # make_conditional_string ($NEGATE, $COND)
6185 # ----------------------------------------
6186 sub make_conditional_string ($$)
6188 my ($negate, $cond) = @_;
6189 $cond = "${cond}_TRUE"
6190 unless $cond =~ /^TRUE|FALSE$/;
6191 $cond = Automake::Condition::conditional_negate ($cond)
6197 my %_am_macro_for_cond =
6199 AMDEP => "one of the compiler tests\n"
6200 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6201 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6202 am__fastdepCC => 'AC_PROG_CC',
6203 am__fastdepCCAS => 'AM_PROG_AS',
6204 am__fastdepCXX => 'AC_PROG_CXX',
6205 am__fastdepGCJ => 'AM_PROG_GCJ',
6206 am__fastdepOBJC => 'AC_PROG_OBJC',
6207 am__fastdepUPC => 'AM_PROG_UPC'
6211 # cond_stack_if ($NEGATE, $COND, $WHERE)
6212 # --------------------------------------
6213 sub cond_stack_if ($$$)
6215 my ($negate, $cond, $where) = @_;
6217 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6219 my $text = "$cond does not appear in AM_CONDITIONAL";
6220 my $scope = US_LOCAL;
6221 if (exists $_am_macro_for_cond{$cond})
6223 my $mac = $_am_macro_for_cond{$cond};
6224 $text .= "\n The usual way to define '$cond' is to add ";
6225 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6226 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6227 # These warnings appear in Automake files (depend2.am),
6228 # so there is no need to display them more than once:
6231 error $where, $text, uniq_scope => $scope;
6234 push (@cond_stack, make_conditional_string ($negate, $cond));
6236 return new Automake::Condition (@cond_stack);
6241 # cond_stack_else ($NEGATE, $COND, $WHERE)
6242 # ----------------------------------------
6243 sub cond_stack_else ($$$)
6245 my ($negate, $cond, $where) = @_;
6249 error $where, "else without if";
6253 $cond_stack[$#cond_stack] =
6254 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6256 # If $COND is given, check against it.
6259 $cond = make_conditional_string ($negate, $cond);
6261 error ($where, "else reminder ($negate$cond) incompatible with "
6262 . "current conditional: $cond_stack[$#cond_stack]")
6263 if $cond_stack[$#cond_stack] ne $cond;
6266 return new Automake::Condition (@cond_stack);
6271 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6272 # -----------------------------------------
6273 sub cond_stack_endif ($$$)
6275 my ($negate, $cond, $where) = @_;
6280 error $where, "endif without if";
6284 # If $COND is given, check against it.
6287 $cond = make_conditional_string ($negate, $cond);
6289 error ($where, "endif reminder ($negate$cond) incompatible with "
6290 . "current conditional: $cond_stack[$#cond_stack]")
6291 if $cond_stack[$#cond_stack] ne $cond;
6296 return new Automake::Condition (@cond_stack);
6303 ## ------------------------ ##
6304 ## Handling the variables. ##
6305 ## ------------------------ ##
6308 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6309 # -----------------------------------------------------
6310 # Like define_variable, but the value is a list, and the variable may
6311 # be defined conditionally. The second argument is the condition
6312 # under which the value should be defined; this should be the empty
6313 # string to define the variable unconditionally. The third argument
6314 # is a list holding the values to use for the variable. The value is
6315 # pretty printed in the output file.
6316 sub define_pretty_variable ($$$@)
6318 my ($var, $cond, $where, @value) = @_;
6320 if (! vardef ($var, $cond))
6322 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6323 '', $where, VAR_PRETTY);
6324 rvar ($var)->rdef ($cond)->set_seen;
6329 # define_variable ($VAR, $VALUE, $WHERE)
6330 # --------------------------------------
6331 # Define a new Automake Makefile variable VAR to VALUE, but only if
6332 # not already defined.
6333 sub define_variable ($$$)
6335 my ($var, $value, $where) = @_;
6336 define_pretty_variable ($var, TRUE, $where, $value);
6340 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6341 # ------------------------------------------------------------
6342 # Define the $VAR which content is the list of file names composed of
6343 # a @BASENAME and the $EXTENSION.
6344 sub define_files_variable ($\@$$)
6346 my ($var, $basename, $extension, $where) = @_;
6347 define_variable ($var,
6348 join (' ', map { "$_.$extension" } @$basename),
6353 # Like define_variable, but define a variable to be the configure
6354 # substitution by the same name.
6355 sub define_configure_variable ($)
6358 # Some variables we do not want to output. For instance it
6359 # would be a bad idea to output `U = @U@` when `@U@` can be
6360 # substituted as `\`.
6361 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6362 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6363 '', $configure_vars{$var}, $pretty);
6367 # define_compiler_variable ($LANG)
6368 # --------------------------------
6369 # Define a compiler variable. We also handle defining the 'LT'
6370 # version of the command when using libtool.
6371 sub define_compiler_variable ($)
6375 my ($var, $value) = ($lang->compiler, $lang->compile);
6376 my $libtool_tag = '';
6377 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6378 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6379 &define_variable ($var, $value, INTERNAL);
6380 if (var ('LIBTOOL'))
6382 my $verbose = define_verbose_libtool ();
6383 &define_variable ("LT$var",
6384 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6385 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6388 define_verbose_tagvar ($lang->ccer || 'GEN');
6392 # define_linker_variable ($LANG)
6393 # ------------------------------
6394 # Define linker variables.
6395 sub define_linker_variable ($)
6399 my $libtool_tag = '';
6400 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6401 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6403 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6404 # CCLINK = $(CCLD) blah blah...
6406 if (var ('LIBTOOL'))
6408 my $verbose = define_verbose_libtool ();
6409 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6410 . "\$(LIBTOOLFLAGS) --mode=link ";
6412 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6413 &define_variable ($lang->compiler, $lang);
6414 &define_verbose_tagvar ($lang->lder || 'GEN');
6417 sub define_per_target_linker_variable ($$)
6419 my ($linker, $target) = @_;
6421 # If the user wrote a custom link command, we don't define ours.
6422 return "${target}_LINK"
6423 if set_seen "${target}_LINK";
6425 my $xlink = $linker ? $linker : 'LINK';
6427 my $lang = $link_languages{$xlink};
6428 prog_error "Unknown language for linker variable '$xlink'"
6431 my $link_command = $lang->link;
6434 my $libtool_tag = '';
6435 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6436 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6438 my $verbose = define_verbose_libtool ();
6440 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6441 . "--mode=link " . $link_command;
6444 # Rewrite each occurrence of 'AM_$flag' in the link
6445 # command into '${derived}_$flag' if it exists.
6446 my $orig_command = $link_command;
6447 my @flags = (@{$lang->flags}, 'LDFLAGS');
6448 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6449 for my $flag (@flags)
6451 my $val = "${target}_$flag";
6452 $link_command =~ s/\(AM_$flag\)/\($val\)/
6456 # If the computed command is the same as the generic command, use
6457 # the command linker variable.
6458 return ($lang->linker, $lang->lder)
6459 if $link_command eq $orig_command;
6461 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6462 return ("${target}_LINK", $lang->lder);
6465 ################################################################
6467 # &check_trailing_slash ($WHERE, $LINE)
6468 # -------------------------------------
6469 # Return 1 iff $LINE ends with a slash.
6470 # Might modify $LINE.
6471 sub check_trailing_slash ($\$)
6473 my ($where, $line) = @_;
6475 # Ignore '##' lines.
6476 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6478 # Catch and fix a common error.
6479 msg "syntax", $where, "whitespace following trailing backslash"
6480 if $$line =~ s/\\\s+\n$/\\\n/;
6482 return $$line =~ /\\$/;
6486 # &read_am_file ($AMFILE, $WHERE)
6487 # -------------------------------
6488 # Read Makefile.am and set up %contents. Simultaneously copy lines
6489 # from Makefile.am into $output_trailer, or define variables as
6490 # appropriate. NOTE we put rules in the trailer section. We want
6491 # user rules to come after our generated stuff.
6492 sub read_am_file ($$)
6494 my ($amfile, $where) = @_;
6496 my $am_file = new Automake::XFile ("< $amfile");
6497 verb "reading $amfile";
6499 # Keep track of the youngest output dependency.
6500 my $mtime = mtime $amfile;
6501 $output_deps_greatest_timestamp = $mtime
6502 if $mtime > $output_deps_greatest_timestamp;
6508 my $var_look = VAR_ASIS;
6510 use constant IN_VAR_DEF => 0;
6511 use constant IN_RULE_DEF => 1;
6512 use constant IN_COMMENT => 2;
6513 my $prev_state = IN_RULE_DEF;
6515 while ($_ = $am_file->getline)
6517 $where->set ("$amfile:$.");
6518 if (/$IGNORE_PATTERN/o)
6520 # Merely delete comments beginning with two hashes.
6522 elsif (/$WHITE_PATTERN/o)
6524 error $where, "blank line following trailing backslash"
6526 # Stick a single white line before the incoming macro or rule.
6529 # Flush all comments seen so far.
6532 $output_vars .= $comment;
6536 elsif (/$COMMENT_PATTERN/o)
6538 # Stick comments before the incoming macro or rule. Make
6539 # sure a blank line precedes the first block of comments.
6540 $spacing = "\n" unless $blank;
6542 $comment .= $spacing . $_;
6544 $prev_state = IN_COMMENT;
6550 $saw_bk = check_trailing_slash ($where, $_);
6553 # We save the conditional stack on entry, and then check to make
6554 # sure it is the same on exit. This lets us conditionally include
6556 my @saved_cond_stack = @cond_stack;
6557 my $cond = new Automake::Condition (@cond_stack);
6559 my $last_var_name = '';
6560 my $last_var_type = '';
6561 my $last_var_value = '';
6563 # FIXME: shouldn't use $_ in this loop; it is too big.
6566 $where->set ("$amfile:$.");
6568 # Make sure the line is \n-terminated.
6572 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6573 # used by users. @MAINT@ is an anachronism now.
6574 $_ =~ s/\@MAINT\@//g
6575 unless $seen_maint_mode;
6577 my $new_saw_bk = check_trailing_slash ($where, $_);
6579 if (/$IGNORE_PATTERN/o)
6581 # Merely delete comments beginning with two hashes.
6583 # Keep any backslash from the previous line.
6584 $new_saw_bk = $saw_bk;
6586 elsif (/$WHITE_PATTERN/o)
6588 # Stick a single white line before the incoming macro or rule.
6590 error $where, "blank line following trailing backslash"
6593 elsif (/$COMMENT_PATTERN/o)
6595 error $where, "comment following trailing backslash"
6596 if $saw_bk && $prev_state != IN_COMMENT;
6598 # Stick comments before the incoming macro or rule.
6599 $comment .= $spacing . $_;
6601 $prev_state = IN_COMMENT;
6605 if ($prev_state == IN_RULE_DEF)
6607 my $cond = new Automake::Condition @cond_stack;
6608 $output_trailer .= $cond->subst_string;
6609 $output_trailer .= $_;
6611 elsif ($prev_state == IN_COMMENT)
6613 # If the line doesn't start with a '#', add it.
6614 # We do this because a continued comment like
6618 # is not portable. BSD make doesn't honor
6619 # escaped newlines in comments.
6621 $comment .= $spacing . $_;
6623 else # $prev_state == IN_VAR_DEF
6625 $last_var_value .= ' '
6626 unless $last_var_value =~ /\s$/;
6627 $last_var_value .= $_;
6631 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6632 $last_var_type, $cond,
6633 $last_var_value, $comment,
6634 $last_where, VAR_ASIS)
6636 $comment = $spacing = '';
6641 elsif (/$IF_PATTERN/o)
6643 $cond = cond_stack_if ($1, $2, $where);
6645 elsif (/$ELSE_PATTERN/o)
6647 $cond = cond_stack_else ($1, $2, $where);
6649 elsif (/$ENDIF_PATTERN/o)
6651 $cond = cond_stack_endif ($1, $2, $where);
6654 elsif (/$RULE_PATTERN/o)
6657 $prev_state = IN_RULE_DEF;
6659 # For now we have to output all definitions of user rules
6660 # and can't diagnose duplicates (see the comment in
6661 # Automake::Rule::define). So we go on and ignore the return value.
6662 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6664 check_variable_expansions ($_, $where);
6666 $output_trailer .= $comment . $spacing;
6667 my $cond = new Automake::Condition @cond_stack;
6668 $output_trailer .= $cond->subst_string;
6669 $output_trailer .= $_;
6670 $comment = $spacing = '';
6672 elsif (/$ASSIGNMENT_PATTERN/o)
6674 # Found a macro definition.
6675 $prev_state = IN_VAR_DEF;
6676 $last_var_name = $1;
6677 $last_var_type = $2;
6678 $last_var_value = $3;
6679 $last_where = $where->clone;
6680 if ($3 ne '' && substr ($3, -1) eq "\\")
6682 # We preserve the '\' because otherwise the long lines
6683 # that are generated will be truncated by broken
6685 $last_var_value = $3 . "\n";
6687 # Normally we try to output variable definitions in the
6688 # same format they were input. However, POSIX compliant
6689 # systems are not required to support lines longer than
6690 # 2048 bytes (most notably, some sed implementation are
6691 # limited to 4000 bytes, and sed is used by config.status
6692 # to rewrite Makefile.in into Makefile). Moreover nobody
6693 # would really write such long lines by hand since it is
6694 # hardly maintainable. So if a line is longer that 1000
6695 # bytes (an arbitrary limit), assume it has been
6696 # automatically generated by some tools, and flatten the
6697 # variable definition. Otherwise, keep the variable as it
6699 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6703 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6704 $last_var_type, $cond,
6705 $last_var_value, $comment,
6706 $last_where, $var_look)
6708 $comment = $spacing = '';
6709 $var_look = VAR_ASIS;
6712 elsif (/$INCLUDE_PATTERN/o)
6716 if ($path =~ s/^\$\(top_srcdir\)\///)
6718 push (@include_stack, "\$\(top_srcdir\)/$path");
6719 # Distribute any included file.
6721 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6722 # otherwise OSF make will implicitly copy the included
6723 # file in the build tree during "make distdir" to satisfy
6725 # (subdircond2.test and subdircond3.test will fail.)
6726 push_dist_common ("\$\(top_srcdir\)/$path");
6730 $path =~ s/\$\(srcdir\)\///;
6731 push (@include_stack, "\$\(srcdir\)/$path");
6732 # Always use the $(srcdir) prefix in DIST_COMMON,
6733 # otherwise OSF make will implicitly copy the included
6734 # file in the build tree during "make distdir" to satisfy
6736 # (subdircond2.test and subdircond3.test will fail.)
6737 push_dist_common ("\$\(srcdir\)/$path");
6738 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6740 $where->push_context ("'$path' included from here");
6741 &read_am_file ($path, $where);
6742 $where->pop_context;
6746 # This isn't an error; it is probably a continued rule.
6747 # In fact, this is what we assume.
6748 $prev_state = IN_RULE_DEF;
6749 check_variable_expansions ($_, $where);
6750 $output_trailer .= $comment . $spacing;
6751 my $cond = new Automake::Condition @cond_stack;
6752 $output_trailer .= $cond->subst_string;
6753 $output_trailer .= $_;
6754 $comment = $spacing = '';
6755 error $where, "'#' comment at start of rule is unportable"
6756 if $_ =~ /^\t\s*\#/;
6759 $saw_bk = $new_saw_bk;
6760 $_ = $am_file->getline;
6763 $output_trailer .= $comment;
6765 error ($where, "trailing backslash on last line")
6768 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6769 : "too many conditionals closed in include file"))
6770 if "@saved_cond_stack" ne "@cond_stack";
6774 # define_standard_variables ()
6775 # ----------------------------
6776 # A helper for read_main_am_file which initializes configure variables
6777 # and variables from header-vars.am.
6778 sub define_standard_variables
6780 my $saved_output_vars = $output_vars;
6781 my ($comments, undef, $rules) =
6782 file_contents_internal (1, "$libdir/am/header-vars.am",
6783 new Automake::Location);
6785 foreach my $var (sort keys %configure_vars)
6787 &define_configure_variable ($var);
6790 $output_vars .= $comments . $rules;
6793 # Read main am file.
6794 sub read_main_am_file
6798 # This supports the strange variable tricks we are about to play.
6799 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6800 if (scalar (variables) > 0);
6802 # Generate copyright header for generated Makefile.in.
6803 # We do discard the output of predefined variables, handled below.
6804 $output_vars = ("# $in_file_name generated by automake "
6805 . $VERSION . " from $am_file_name.\n");
6806 $output_vars .= '# ' . subst ('configure_input') . "\n";
6807 $output_vars .= $gen_copyright;
6809 # We want to predefine as many variables as possible. This lets
6810 # the user set them with '+=' in Makefile.am.
6811 &define_standard_variables;
6813 # Read user file, which might override some of our values.
6814 &read_am_file ($amfile, new Automake::Location);
6819 ################################################################
6822 # &flatten ($STRING)
6823 # ------------------
6824 # Flatten the $STRING and return the result.
6838 # transform_token ($TOKEN, \%PAIRS, $KEY)
6839 # =======================================
6840 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6841 # (which should be ?KEY? or any of the special %% requests)..
6842 sub transform_token ($$$)
6844 my ($token, $transform, $key) = @_;
6845 my $res = $transform->{$key};
6846 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6851 # transform ($TOKEN, \%PAIRS)
6852 # ===========================
6853 # If ($TOKEN, $VAL) is in %PAIRS:
6854 # - replaces %KEY% with $VAL,
6855 # - enables/disables ?KEY? and ?!KEY?,
6856 # - replaces %?KEY% with TRUE or FALSE.
6857 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6858 # IFTRUE / IFFALSE, as appropriate.
6861 my ($token, $transform) = @_;
6864 # Must be before the following pattern to exclude the case
6865 # when there is neither IFTRUE nor IFFALSE.
6866 if ($token =~ /^%([\w\-]+)%$/)
6868 return transform_token ($token, $transform, $1);
6870 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6871 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6873 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6876 elsif ($token =~ /^%\?([\w\-]+)%$/)
6878 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6881 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6883 my $neg = ($1 eq '!') ? 1 : 0;
6884 my $val = transform_token ($token, $transform, $2);
6885 return (!!$val == $neg) ? '##%' : '';
6889 prog_error "Unknown request format: $token";
6894 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6895 # -----------------------------------------
6896 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6897 # No extra parsing of post-processing is done (i.e., recognition of
6898 # rules declaration or of make variables definitions).
6899 sub preprocess_file ($%)
6901 my ($file, %transform) = @_;
6903 # Complete %transform with global options.
6904 # Note that %transform goes last, so it overrides global options.
6905 %transform = ( 'MAINTAINER-MODE'
6906 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6908 'XZ' => !! option 'dist-xz',
6909 'LZMA' => !! option 'dist-lzma',
6910 'LZIP' => !! option 'dist-lzip',
6911 'BZIP2' => !! option 'dist-bzip2',
6912 'COMPRESS' => !! option 'dist-tarZ',
6913 'GZIP' => ! option 'no-dist-gzip',
6914 'SHAR' => !! option 'dist-shar',
6915 'ZIP' => !! option 'dist-zip',
6917 'INSTALL-INFO' => ! option 'no-installinfo',
6918 'INSTALL-MAN' => ! option 'no-installman',
6919 'HAVE-MANS' => !! var ('MANS'),
6920 'CK-NEWS' => !! option 'check-news',
6922 'SUBDIRS' => !! var ('SUBDIRS'),
6923 'TOPDIR_P' => $relative_dir eq '.',
6925 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6926 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6927 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6929 'LIBTOOL' => !! var ('LIBTOOL'),
6933 if (! defined ($_ = $am_file_cache{$file}))
6935 verb "reading $file";
6936 # Swallow the whole file.
6937 my $fc_file = new Automake::XFile "< $file";
6938 my $saved_dollar_slash = $/;
6940 $_ = $fc_file->getline;
6941 $/ = $saved_dollar_slash;
6943 # Remove ##-comments.
6944 # Besides we don't need more than two consecutive new-lines.
6945 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6946 # Remember the contents of the just-read file.
6947 $am_file_cache{$file} = $_;
6950 # Substitute Automake template tokens.
6951 s/(?: % \?? [\w\-]+ %
6952 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
6954 )/transform($&, \%transform)/gex;
6955 # transform() may have added some ##%-comments to strip.
6956 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6957 # ####### and do not remove the latter.)
6958 s/^[ \t]*(?:##%)+.*\n//gm;
6965 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6966 # ------------------------------------------
6967 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6969 sub make_paragraphs ($%)
6971 my ($file, %transform) = @_;
6972 $transform{FIRST} = !$transformed_files{$file};
6973 $transformed_files{$file} = 1;
6975 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6978 while (defined ($_ = shift @lines))
6981 # If we are a rule, eat as long as we start with a tab.
6982 if (/$RULE_PATTERN/smo)
6984 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6986 $paragraph .= "\n$_";
6988 unshift (@lines, $_);
6991 # If we are a comments, eat as much comments as you can.
6992 elsif (/$COMMENT_PATTERN/smo)
6994 while (defined ($_ = shift @lines)
6995 && $_ =~ /$COMMENT_PATTERN/smo)
6997 $paragraph .= "\n$_";
6999 unshift (@lines, $_);
7002 push @res, $paragraph;
7010 # ($COMMENT, $VARIABLES, $RULES)
7011 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7012 # -------------------------------------------------------------
7013 # Return contents of a file from $libdir/am, automatically skipping
7014 # macros or rules which are already known. $IS_AM iff the caller is
7015 # reading an Automake file (as opposed to the user's Makefile.am).
7016 sub file_contents_internal ($$$%)
7018 my ($is_am, $file, $where, %transform) = @_;
7020 $where->set ($file);
7022 my $result_vars = '';
7023 my $result_rules = '';
7027 # The following flags are used to track rules spanning across
7028 # multiple paragraphs.
7029 my $is_rule = 0; # 1 if we are processing a rule.
7030 my $discard_rule = 0; # 1 if the current rule should not be output.
7032 # We save the conditional stack on entry, and then check to make
7033 # sure it is the same on exit. This lets us conditionally include
7035 my @saved_cond_stack = @cond_stack;
7036 my $cond = new Automake::Condition (@cond_stack);
7038 foreach (make_paragraphs ($file, %transform))
7040 # FIXME: no line number available.
7041 $where->set ($file);
7044 error $where, "blank line following trailing backslash:\n$_"
7046 error $where, "comment following trailing backslash:\n$_"
7052 # Stick empty line before the incoming macro or rule.
7055 elsif (/$COMMENT_PATTERN/mso)
7058 # Stick comments before the incoming macro or rule.
7062 # Handle inclusion of other files.
7063 elsif (/$INCLUDE_PATTERN/o)
7067 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7068 $where->push_context ("'$file' included from here");
7070 my ($com, $vars, $rules)
7071 = file_contents_internal ($is_am, $file, $where, %transform);
7072 $where->pop_context;
7074 $result_vars .= $vars;
7075 $result_rules .= $rules;
7079 # Handling the conditionals.
7080 elsif (/$IF_PATTERN/o)
7082 $cond = cond_stack_if ($1, $2, $file);
7084 elsif (/$ELSE_PATTERN/o)
7086 $cond = cond_stack_else ($1, $2, $file);
7088 elsif (/$ENDIF_PATTERN/o)
7090 $cond = cond_stack_endif ($1, $2, $file);
7094 elsif (/$RULE_PATTERN/mso)
7098 # Separate relationship from optional actions: the first
7099 # `new-line tab" not preceded by backslash (continuation
7102 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7103 my ($relationship, $actions) = ($1, $2 || '');
7105 # Separate targets from dependencies: the first colon.
7106 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7107 my ($targets, $dependencies) = ($1, $2);
7108 # Remove the escaped new lines.
7109 # I don't know why, but I have to use a tmp $flat_deps.
7110 my $flat_deps = &flatten ($dependencies);
7111 my @deps = split (' ', $flat_deps);
7113 foreach (split (' ', $targets))
7115 # FIXME: 1. We are not robust to people defining several targets
7116 # at once, only some of them being in %dependencies. The
7117 # actions from the targets in %dependencies are usually generated
7118 # from the content of %actions, but if some targets in $targets
7119 # are not in %dependencies the ELSE branch will output
7120 # a rule for all $targets (i.e. the targets which are both
7121 # in %dependencies and $targets will have two rules).
7123 # FIXME: 2. The logic here is not able to output a
7124 # multi-paragraph rule several time (e.g. for each condition
7125 # it is defined for) because it only knows the first paragraph.
7127 # FIXME: 3. We are not robust to people defining a subset
7128 # of a previously defined "multiple-target" rule. E.g.
7129 # 'foo:' after 'foo bar:'.
7131 # Output only if not in FALSE.
7132 if (defined $dependencies{$_} && $cond != FALSE)
7134 &depend ($_, @deps);
7135 register_action ($_, $actions);
7139 # Free-lance dependency. Output the rule for all the
7140 # targets instead of one by one.
7141 my @undefined_conds =
7142 Automake::Rule::define ($targets, $file,
7143 $is_am ? RULE_AUTOMAKE : RULE_USER,
7145 for my $undefined_cond (@undefined_conds)
7147 my $condparagraph = $paragraph;
7148 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7149 $result_rules .= "$spacing$comment$condparagraph\n";
7151 if (scalar @undefined_conds == 0)
7153 # Remember to discard next paragraphs
7154 # if they belong to this rule.
7155 # (but see also FIXME: #2 above.)
7158 $comment = $spacing = '';
7164 elsif (/$ASSIGNMENT_PATTERN/mso)
7166 my ($var, $type, $val) = ($1, $2, $3);
7167 error $where, "variable '$var' with trailing backslash"
7172 Automake::Variable::define ($var,
7173 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7174 $type, $cond, $val, $comment, $where,
7178 $comment = $spacing = '';
7182 # This isn't an error; it is probably some tokens which
7183 # configure is supposed to replace, such as '@SET-MAKE@',
7184 # or some part of a rule cut by an if/endif.
7185 if (! $cond->false && ! ($is_rule && $discard_rule))
7187 s/^/$cond->subst_string/gme;
7188 $result_rules .= "$spacing$comment$_\n";
7190 $comment = $spacing = '';
7194 error ($where, @cond_stack ?
7195 "unterminated conditionals: @cond_stack" :
7196 "too many conditionals closed in include file")
7197 if "@saved_cond_stack" ne "@cond_stack";
7199 return ($comment, $result_vars, $result_rules);
7204 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7205 # ------------------------------------------------
7206 # Return contents of a file from $libdir/am, automatically skipping
7207 # macros or rules which are already known.
7208 sub file_contents ($$%)
7210 my ($basename, $where, %transform) = @_;
7211 my ($comments, $variables, $rules) =
7212 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7214 return "$comments$variables$rules";
7219 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7220 # -----------------------------------------------------
7221 # Find all variable prefixes that are used for install directories. A
7222 # prefix 'zar' qualifies iff:
7224 # * 'zardir' is a variable.
7225 # * 'zar_PRIMARY' is a variable.
7227 # As a side effect, it looks for misspellings. It is an error to have
7228 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7229 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7230 # of the same name (with "dir" appended) exists. For instance, if the
7231 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7232 # This is to provide a little extra flexibility in those cases which
7234 sub am_primary_prefixes ($$@)
7236 my ($primary, $can_dist, @prefixes) = @_;
7239 my %valid = map { $_ => 0 } @prefixes;
7240 $valid{'EXTRA'} = 0;
7241 foreach my $var (variables $primary)
7243 # Automake is allowed to define variables that look like primaries
7244 # but which aren't. E.g. INSTALL_sh_DATA.
7245 # Autoconf can also define variables like INSTALL_DATA, so
7246 # ignore all configure variables (at least those which are not
7247 # redefined in Makefile.am).
7248 # FIXME: We should make sure that these variables are not
7249 # conditionally defined (or else adjust the condition below).
7250 my $def = $var->def (TRUE);
7251 next if $def && $def->owner != VAR_MAKEFILE;
7253 my $varname = $var->name;
7255 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7257 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7258 if ($dist ne '' && ! $can_dist)
7261 "invalid variable '$varname': 'dist' is forbidden");
7263 # Standard directories must be explicitly allowed.
7264 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7267 "'${X}dir' is not a legitimate directory " .
7270 # A not explicitly valid directory is allowed if Xdir is defined.
7271 elsif (! defined $valid{$X} &&
7272 $var->requires_variables ("'$varname' is used", "${X}dir"))
7274 # Nothing to do. Any error message has been output
7275 # by $var->requires_variables.
7279 # Ensure all extended prefixes are actually used.
7280 $valid{"$base$dist$X"} = 1;
7285 prog_error "unexpected variable name: $varname";
7289 # Return only those which are actually defined.
7290 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7294 # Handle 'where_HOW' variable magic. Does all lookups, generates
7295 # install code, and possibly generates code to define the primary
7296 # variable. The first argument is the name of the .am file to munge,
7297 # the second argument is the primary variable (e.g. HEADERS), and all
7298 # subsequent arguments are possible installation locations.
7300 # Returns list of [$location, $value] pairs, where
7301 # $value's are the values in all where_HOW variable, and $location
7302 # there associated location (the place here their parent variables were
7305 # FIXME: this should be rewritten to be cleaner. It should be broken
7306 # up into multiple functions.
7308 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7315 my $default_dist = 0;
7318 if ($args[0] eq '-noextra')
7322 elsif ($args[0] eq '-candist')
7326 elsif ($args[0] eq '-defaultdist')
7331 elsif ($args[0] !~ /^-/)
7338 my ($file, $primary, @prefix) = @args;
7340 # Now that configure substitutions are allowed in where_HOW
7341 # variables, it is an error to actually define the primary. We
7342 # allow 'JAVA', as it is customarily used to mean the Java
7343 # interpreter. This is but one of several Java hacks. Similarly,
7344 # 'PYTHON' is customarily used to mean the Python interpreter.
7345 reject_var $primary, "'$primary' is an anachronism"
7346 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7348 # Get the prefixes which are valid and actually used.
7349 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7351 # If a primary includes a configure substitution, then the EXTRA_
7352 # form is required. Otherwise we can't properly do our job.
7358 foreach my $X (@prefix)
7360 my $nodir_name = $X;
7361 my $one_name = $X . '_' . $primary;
7362 my $one_var = var $one_name;
7364 my $strip_subdir = 1;
7365 # If subdir prefix should be preserved, do so.
7366 if ($nodir_name =~ /^nobase_/)
7369 $nodir_name =~ s/^nobase_//;
7372 # If files should be distributed, do so.
7376 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7377 || (! $default_dist && $nodir_name =~ /^dist_/));
7378 $nodir_name =~ s/^(dist|nodist)_//;
7382 # Use the location of the currently processed variable.
7383 # We are not processing a particular condition, so pick the first
7385 my $tmpcond = $one_var->conditions->one_cond;
7386 my $where = $one_var->rdef ($tmpcond)->location->clone;
7388 # Append actual contents of where_PRIMARY variable to
7389 # @result, skipping @substitutions@.
7390 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7392 my ($loc, $value) = @$locvals;
7393 # Skip configure substitutions.
7394 if ($value =~ /^\@.*\@$/)
7396 if ($nodir_name eq 'EXTRA')
7399 "'$one_name' contains configure substitution, "
7402 # Check here to make sure variables defined in
7403 # configure.ac do not imply that EXTRA_PRIMARY
7405 elsif (! defined $configure_vars{$one_name})
7407 $require_extra = $one_name
7413 # Strip any $(EXEEXT) suffix the user might have added, or this
7414 # will confuse &handle_source_transform and &check_canonical_spelling.
7415 # We'll add $(EXEEXT) back later anyway.
7416 # Do it here rather than in handle_programs so the uniquifying at the
7417 # end of this function works.
7418 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7419 if $primary eq 'PROGRAMS';
7421 push (@result, $locvals);
7424 # A blatant hack: we rewrite each _PROGRAMS primary to include
7426 append_exeext { 1 } $one_name
7427 if $primary eq 'PROGRAMS';
7428 # "EXTRA" shouldn't be used when generating clean targets,
7429 # all, or install targets. We used to warn if EXTRA_FOO was
7430 # defined uselessly, but this was annoying.
7432 if $nodir_name eq 'EXTRA';
7434 if ($nodir_name eq 'check')
7436 push (@check, '$(' . $one_name . ')');
7440 push (@used, '$(' . $one_name . ')');
7443 # Is this to be installed?
7444 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7446 # If so, with install-exec? (or install-data?).
7447 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7449 my $check_options_p = $install_p && !! option 'std-options';
7451 # Use the location of the currently processed variable as context.
7452 $where->push_context ("while processing '$one_name'");
7454 # The variable containing all files to distribute.
7455 my $distvar = "\$($one_name)";
7456 $distvar = shadow_unconditionally ($one_name, $where)
7457 if ($dist_p && $one_var->has_conditional_contents);
7459 # Singular form of $PRIMARY.
7460 (my $one_primary = $primary) =~ s/S$//;
7461 $output_rules .= &file_contents ($file, $where,
7462 PRIMARY => $primary,
7463 ONE_PRIMARY => $one_primary,
7465 NDIR => $nodir_name,
7466 BASE => $strip_subdir,
7469 INSTALL => $install_p,
7471 DISTVAR => $distvar,
7472 'CK-OPTS' => $check_options_p);
7475 # The JAVA variable is used as the name of the Java interpreter.
7476 # The PYTHON variable is used as the name of the Python interpreter.
7477 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7480 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7481 $output_vars .= "\n";
7484 err_var ($require_extra,
7485 "'$require_extra' contains configure substitution,\n"
7486 . "but 'EXTRA_$primary' not defined")
7487 if ($require_extra && ! var ('EXTRA_' . $primary));
7489 # Push here because PRIMARY might be configure time determined.
7490 push (@all, '$(' . $primary . ')')
7491 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7493 # Make the result unique. This lets the user use conditionals in
7494 # a natural way, but still lets us program lazily -- we don't have
7495 # to worry about handling a particular object more than once.
7496 # We will keep only one location per object.
7498 for my $pair (@result)
7500 my ($loc, $val) = @$pair;
7501 $result{$val} = $loc;
7503 my @l = sort keys %result;
7504 return map { [$result{$_}->clone, $_] } @l;
7508 ################################################################
7510 # Each key in this hash is the name of a directory holding a
7511 # Makefile.in. These variables are local to 'is_make_dir'.
7513 my $make_dirs_set = 0;
7518 if (! $make_dirs_set)
7520 foreach my $iter (@configure_input_files)
7522 $make_dirs{dirname ($iter)} = 1;
7524 # We also want to notice Makefile.in's.
7525 foreach my $iter (@other_input_files)
7527 if ($iter =~ /Makefile\.in$/)
7529 $make_dirs{dirname ($iter)} = 1;
7534 return defined $make_dirs{$dir};
7537 ################################################################
7539 # Find the aux dir. This should match the algorithm used by
7540 # ./configure. (See the Autoconf documentation for for
7541 # AC_CONFIG_AUX_DIR.)
7542 sub locate_aux_dir ()
7544 if (! $config_aux_dir_set_in_configure_ac)
7546 # The default auxiliary directory is the first
7547 # of ., .., or ../.. that contains install-sh.
7548 # Assume . if install-sh doesn't exist yet.
7549 for my $dir (qw (. .. ../..))
7551 if (-f "$dir/install-sh")
7553 $config_aux_dir = $dir;
7557 $config_aux_dir = '.' unless $config_aux_dir;
7559 # Avoid unsightly '/.'s.
7560 $am_config_aux_dir =
7561 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7562 $am_config_aux_dir =~ s,/*$,,;
7566 # &push_required_file ($DIR, $FILE, $FULLFILE)
7567 # --------------------------------------------------
7568 # Push the given file onto DIST_COMMON.
7569 sub push_required_file
7571 my ($dir, $file, $fullfile) = @_;
7573 # If the file to be distributed is in the same directory of the
7574 # currently processed Makefile.am, then we want to distribute it
7575 # from this same Makefile.am.
7576 if ($dir eq $relative_dir)
7578 push_dist_common ($file);
7580 # This is needed to allow a construct in a non-top-level Makefile.am
7581 # to require a file in the build-aux directory (see at least the test
7582 # script 'test-driver-is-distributed.test'). This is related to the
7583 # automake bug#9546. Note that the use of $config_aux_dir instead
7584 # of $am_config_aux_dir here is deliberate and necessary.
7585 elsif ($dir eq $config_aux_dir)
7587 push_dist_common ("$am_config_aux_dir/$file");
7589 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7590 # We probably need some refactoring of this function and its callers,
7591 # to have a more explicit and systematic handling of all the special
7592 # cases; but, since there are only two of them, this is low-priority
7594 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7596 # Avoid unsightly '/.'s.
7597 my $am_config_libobj_dir =
7599 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7600 $am_config_libobj_dir =~ s|/*$||;
7601 push_dist_common ("$am_config_libobj_dir/$file");
7603 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7605 # If we are doing the topmost directory, and the file is in a
7606 # subdir which does not have a Makefile, then we distribute it
7609 # If a required file is above the source tree, it is important
7610 # to prefix it with '$(srcdir)' so that no VPATH search is
7611 # performed. Otherwise problems occur with Make implementations
7612 # that rewrite and simplify rules whose dependencies are found in a
7613 # VPATH location. Here is an example with OSF1/Tru64 Make.
7625 # Dependency '../a' was found in 'sub/../a', but this make
7626 # implementation simplified it as 'a'. (Note that the sub/
7627 # directory does not even exist.)
7629 # This kind of VPATH rewriting seems hard to cancel. The
7630 # distdir.am hack against VPATH rewriting works only when no
7631 # simplification is done, i.e., for dependencies which are in
7632 # subdirectories, not in enclosing directories. Hence, in
7633 # the latter case we use a full path to make sure no VPATH
7635 $fullfile = '$(srcdir)/' . $fullfile
7636 if $dir =~ m,^\.\.(?:$|/),;
7638 push_dist_common ($fullfile);
7642 prog_error "a Makefile in relative directory $relative_dir " .
7643 "can't add files in directory $dir to DIST_COMMON";
7648 # If a file name appears as a key in this hash, then it has already
7649 # been checked for. This allows us not to report the same error more
7651 my %required_file_not_found = ();
7653 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7654 # --------------------------------------------------------
7655 # Verify that the file must exist in $DIRECTORY, or install it.
7656 sub required_file_check_or_copy ($$$)
7658 my ($where, $dir, $file) = @_;
7660 my $fullfile = "$dir/$file";
7662 my $dangling_sym = 0;
7664 if (-l $fullfile && ! -f $fullfile)
7668 elsif (dir_has_case_matching_file ($dir, $file))
7673 # '--force-missing' only has an effect if '--add-missing' is
7676 if $found_it && (! $add_missing || ! $force_missing);
7678 # If we've already looked for it, we're done. You might
7679 # wonder why we don't do this before searching for the
7680 # file. If we do that, then something like
7681 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7685 return if defined $required_file_not_found{$fullfile};
7686 $required_file_not_found{$fullfile} = 1;
7688 if ($dangling_sym && $add_missing)
7697 # Only install missing files according to our desired
7699 my $message = "required file '$fullfile' not found";
7702 if (-f "$libdir/$file")
7706 # Install the missing file. Symlink if we
7707 # can, copy if we must. Note: delete the file
7708 # first, in case it is a dangling symlink.
7709 $message = "installing '$fullfile'";
7711 # The license file should not be volatile.
7712 if ($file eq "COPYING")
7714 $message .= " using GNU General Public License v3 file";
7715 $trailer2 = "\n Consider adding the COPYING file"
7716 . " to the version control system"
7717 . "\n for your code, to avoid questions"
7718 . " about which license your project uses";
7721 # Windows Perl will hang if we try to delete a
7722 # file that doesn't exist.
7723 unlink ($fullfile) if -f $fullfile;
7724 if ($symlink_exists && ! $copy_missing)
7726 if (! symlink ("$libdir/$file", $fullfile)
7730 $trailer = "; error while making link: $!";
7733 elsif (system ('cp', "$libdir/$file", $fullfile))
7736 $trailer = "\n error while copying";
7738 set_dir_cache_file ($dir, $file);
7743 $trailer = "\n 'automake --add-missing' can install '$file'"
7744 if -f "$libdir/$file";
7747 # If --force-missing was specified, and we have
7748 # actually found the file, then do nothing.
7750 if $found_it && $force_missing;
7752 # If we couldn't install the file, but it is a target in
7753 # the Makefile, don't print anything. This allows files
7754 # like README, AUTHORS, or THANKS to be generated.
7756 if !$suppress && rule $file;
7758 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7762 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7763 # ----------------------------------------------------------------------
7764 # Verify that the file must exist in $DIRECTORY, or install it.
7765 # $MYSTRICT is the strictness level at which this file becomes required.
7766 # Worker threads may queue up the action to be serialized by the master,
7768 sub require_file_internal ($$$@)
7770 my ($where, $mystrict, $dir, $queue, @files) = @_;
7773 unless $strictness >= $mystrict;
7775 foreach my $file (@files)
7777 push_required_file ($dir, $file, "$dir/$file");
7780 queue_required_file_check_or_copy ($required_conf_file_queue,
7781 QUEUE_CONF_FILE, $relative_dir,
7782 $where, $mystrict, @files);
7786 required_file_check_or_copy ($where, $dir, $file);
7791 # &require_file ($WHERE, $MYSTRICT, @FILES)
7792 # -----------------------------------------
7793 sub require_file ($$@)
7795 my ($where, $mystrict, @files) = @_;
7796 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7799 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7800 # -----------------------------------------------------------
7801 sub require_file_with_macro ($$$@)
7803 my ($cond, $macro, $mystrict, @files) = @_;
7804 $macro = rvar ($macro) unless ref $macro;
7805 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7808 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7809 # ----------------------------------------------------------------
7810 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7811 # must be in that directory. Otherwise expect it in the current directory.
7812 sub require_libsource_with_macro ($$$@)
7814 my ($cond, $macro, $mystrict, @files) = @_;
7815 $macro = rvar ($macro) unless ref $macro;
7816 if ($config_libobj_dir)
7818 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7819 $config_libobj_dir, 0, @files);
7823 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7827 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7828 # $MYSTRICT, @FILES)
7829 # ---------------------------------------------------------------
7830 sub queue_required_file_check_or_copy ($$$$@)
7832 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7836 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7840 @serial_loc = (QUEUE_STRING, $where);
7842 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7845 # &require_queued_file_check_or_copy ($QUEUE)
7846 # -------------------------------------------
7847 sub require_queued_file_check_or_copy ($)
7851 my $dir = $queue->dequeue ();
7852 my $loc_key = $queue->dequeue ();
7853 if ($loc_key eq QUEUE_LOCATION)
7855 $where = Automake::Location::deserialize ($queue);
7857 elsif ($loc_key eq QUEUE_STRING)
7859 $where = $queue->dequeue ();
7863 prog_error "unexpected key $loc_key";
7865 my $mystrict = $queue->dequeue ();
7866 my $nfiles = $queue->dequeue ();
7868 push @files, $queue->dequeue ()
7869 foreach (1 .. $nfiles);
7871 unless $strictness >= $mystrict;
7872 foreach my $file (@files)
7874 required_file_check_or_copy ($where, $config_aux_dir, $file);
7878 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7879 # ----------------------------------------------
7880 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7881 sub require_conf_file ($$@)
7883 my ($where, $mystrict, @files) = @_;
7884 my $queue = defined $required_conf_file_queue ? 1 : 0;
7885 require_file_internal ($where, $mystrict, $config_aux_dir,
7890 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7891 # ----------------------------------------------------------------
7892 sub require_conf_file_with_macro ($$$@)
7894 my ($cond, $macro, $mystrict, @files) = @_;
7895 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7899 ################################################################
7901 # &require_build_directory ($DIRECTORY)
7902 # -------------------------------------
7903 # Emit rules to create $DIRECTORY if needed, and return
7904 # the file that any target requiring this directory should be made
7906 # We don't want to emit the rule twice, and want to reuse it
7907 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7908 sub require_build_directory ($)
7910 my $directory = shift;
7912 return $directory_map{$directory} if exists $directory_map{$directory};
7914 my $cdir = File::Spec->canonpath ($directory);
7916 if (exists $directory_map{$cdir})
7918 my $stamp = $directory_map{$cdir};
7919 $directory_map{$directory} = $stamp;
7923 my $dirstamp = "$cdir/\$(am__dirstamp)";
7925 $directory_map{$directory} = $dirstamp;
7926 $directory_map{$cdir} = $dirstamp;
7928 # Set a variable for the dirstamp basename.
7929 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7930 '$(am__leading_dot)dirstamp');
7932 # Directory must be removed by 'make distclean'.
7933 $clean_files{$dirstamp} = DIST_CLEAN;
7935 $output_rules .= ("$dirstamp:\n"
7936 . "\t\@\$(MKDIR_P) $directory\n"
7937 . "\t\@: > $dirstamp\n");
7942 # &require_build_directory_maybe ($FILE)
7943 # --------------------------------------
7944 # If $FILE lies in a subdirectory, emit a rule to create this
7945 # directory and return the file that $FILE should be made
7946 # dependent upon. Otherwise, just return the empty string.
7947 sub require_build_directory_maybe ($)
7950 my $directory = dirname ($file);
7952 if ($directory ne '.')
7954 return require_build_directory ($directory);
7962 ################################################################
7964 # Push a list of files onto dist_common.
7965 sub push_dist_common
7967 prog_error "push_dist_common run after handle_dist"
7968 if $handle_dist_run;
7969 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7970 '', INTERNAL, VAR_PRETTY);
7974 ################################################################
7976 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7977 # ----------------------------------------------
7978 # Generate a Makefile.in given the name of the corresponding Makefile and
7979 # the name of the file output by config.status.
7980 sub generate_makefile ($$)
7982 my ($makefile_am, $makefile_in) = @_;
7984 # Reset all the Makefile.am related variables.
7985 initialize_per_input;
7987 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7988 # warnings for this file. So hold any warning issued before
7989 # we have processed AUTOMAKE_OPTIONS.
7990 buffer_messages ('warning');
7992 # Name of input file ("Makefile.am") and output file
7993 # ("Makefile.in"). These have no directory components.
7994 $am_file_name = basename ($makefile_am);
7995 $in_file_name = basename ($makefile_in);
7997 # $OUTPUT is encoded. If it contains a ":" then the first element
7998 # is the real output file, and all remaining elements are input
7999 # files. We don't scan or otherwise deal with these input files,
8000 # other than to mark them as dependencies. See
8001 # &scan_autoconf_files for details.
8002 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8004 $relative_dir = dirname ($makefile);
8005 $am_relative_dir = dirname ($makefile_am);
8006 $topsrcdir = backname ($relative_dir);
8008 read_main_am_file ($makefile_am);
8011 # Process buffered warnings.
8013 # Fatal error. Just return, so we can continue with next file.
8016 # Process buffered warnings.
8019 # There are a few install-related variables that you should not define.
8020 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8025 my $def = $v->def (TRUE);
8026 prog_error "$var not defined in condition TRUE"
8028 reject_var $var, "'$var' should not be defined"
8029 if $def->owner != VAR_AUTOMAKE;
8033 # Catch some obsolete variables.
8034 msg_var ('obsolete', 'INCLUDES',
8035 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
8036 if var ('INCLUDES');
8038 # Must do this after reading .am file.
8039 define_variable ('subdir', $relative_dir, INTERNAL);
8041 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8042 # recursive rules are enabled.
8043 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8044 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8046 # Check first, because we might modify some state.
8047 check_gnu_standards;
8048 check_gnits_standards;
8050 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8057 # These must be run after all the sources are scanned. They
8058 # use variables defined by &handle_libraries, &handle_ltlibraries,
8059 # or &handle_programs.
8064 # Variables used by distdir.am and tags.am.
8065 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8066 if (! option 'no-dist')
8068 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8080 handle_minor_options;
8081 # Must come after handle_programs so that %known_programs is up-to-date.
8084 # This must come after most other rules.
8088 do_check_merge_target;
8089 handle_all ($makefile);
8092 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8094 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8096 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8098 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8102 handle_clean ($makefile);
8103 handle_factored_dependencies;
8105 # Comes last, because all the above procedures may have
8106 # defined or overridden variables.
8107 $output_vars .= output_variables;
8111 if ($exit_code != 0)
8113 verb "not writing $makefile_in because of earlier errors";
8117 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8119 # We make sure that 'all:' is the first target.
8121 "$output_vars$output_all$output_header$output_rules$output_trailer";
8123 # Decide whether we must update the output file or not.
8124 # We have to update in the following situations.
8125 # * $force_generation is set.
8126 # * any of the output dependencies is younger than the output
8127 # * the contents of the output is different (this can happen
8128 # if the project has been populated with a file listed in
8129 # @common_files since the last run).
8130 # Output's dependencies are split in two sets:
8131 # * dependencies which are also configure dependencies
8132 # These do not change between each Makefile.am
8133 # * other dependencies, specific to the Makefile.am being processed
8134 # (such as the Makefile.am itself, or any Makefile fragment
8136 my $timestamp = mtime $makefile_in;
8137 if (! $force_generation
8138 && $configure_deps_greatest_timestamp < $timestamp
8139 && $output_deps_greatest_timestamp < $timestamp
8140 && $output eq contents ($makefile_in))
8142 verb "$makefile_in unchanged";
8143 # No need to update.
8147 if (-e $makefile_in)
8149 unlink ($makefile_in)
8150 or fatal "cannot remove $makefile_in: $!";
8153 my $gm_file = new Automake::XFile "> $makefile_in";
8154 verb "creating $makefile_in";
8155 print $gm_file $output;
8158 ################################################################
8163 ################################################################
8165 # Helper function for usage().
8166 sub print_autodist_files (@)
8168 my @lcomm = sort (&uniq (@_));
8171 format USAGE_FORMAT =
8172 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8173 $four[0], $four[1], $four[2], $four[3]
8175 local $~ = "USAGE_FORMAT";
8178 my $rows = int(@lcomm / $cols);
8179 my $rest = @lcomm % $cols;
8190 for (my $y = 0; $y < $rows; $y++)
8192 @four = ("", "", "", "");
8193 for (my $x = 0; $x < $cols; $x++)
8195 last if $y + 1 == $rows && $x == $rest;
8197 my $idx = (($x > $rest)
8198 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8202 $four[$x] = $lcomm[$idx];
8209 # Print usage information.
8212 print "Usage: $0 [OPTION]... [Makefile]...
8214 Generate Makefile.in for configure from Makefile.am.
8217 --help print this help, then exit
8218 --version print version number, then exit
8219 -v, --verbose verbosely list files processed
8220 --no-force only update Makefile.in's that are out of date
8221 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8223 Dependency tracking:
8224 -i, --ignore-deps disable dependency tracking code
8225 --include-deps enable dependency tracking code
8228 --foreign set strictness to foreign
8229 --gnits set strictness to gnits
8230 --gnu set strictness to gnu
8233 -a, --add-missing add missing standard files to package
8234 --libdir=DIR set directory storing library files
8235 --print-libdir print directory storing library files
8236 -c, --copy with -a, copy missing files (default is symlink)
8237 -f, --force-missing force update of standard files
8240 Automake::ChannelDefs::usage;
8242 print "\nFiles automatically distributed if found " .
8244 print_autodist_files @common_files;
8245 print "\nFiles automatically distributed if found " .
8246 "(under certain conditions):\n";
8247 print_autodist_files @common_sometimes;
8250 Report bugs to <@PACKAGE_BUGREPORT@>.
8251 GNU Automake home page: <@PACKAGE_URL@>.
8252 General help using GNU software: <http://www.gnu.org/gethelp/>.
8255 # --help always returns 0 per GNU standards.
8262 # Print version information
8266 automake (GNU $PACKAGE) $VERSION
8267 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8268 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8269 This is free software: you are free to change and redistribute it.
8270 There is NO WARRANTY, to the extent permitted by law.
8272 Written by Tom Tromey <tromey\@redhat.com>
8273 and Alexandre Duret-Lutz <adl\@gnu.org>.
8275 # --version always returns 0 per GNU standards.
8279 ################################################################
8281 # Parse command line.
8282 sub parse_arguments ()
8285 my $ignore_deps = 0;
8290 'version' => \&version,
8292 'libdir=s' => \$libdir,
8293 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8294 'gnu' => sub { $strict = 'gnu'; },
8295 'gnits' => sub { $strict = 'gnits'; },
8296 'foreign' => sub { $strict = 'foreign'; },
8297 'include-deps' => sub { $ignore_deps = 0; },
8298 'i|ignore-deps' => sub { $ignore_deps = 1; },
8299 'no-force' => sub { $force_generation = 0; },
8300 'f|force-missing' => \$force_missing,
8301 'a|add-missing' => \$add_missing,
8302 'c|copy' => \$copy_missing,
8303 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8304 'W|warnings=s' => \@warnings,
8307 use Automake::Getopt ();
8308 Automake::Getopt::parse_options %cli_options;
8310 set_strictness ($strict);
8311 my $cli_where = new Automake::Location;
8312 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8313 for my $warning (@warnings)
8315 &parse_warnings ('-W', $warning);
8318 return unless @ARGV;
8321 foreach my $arg (@ARGV)
8323 fatal ("empty argument\nTry '$0 --help' for more information")
8326 # Handle $local:$input syntax.
8327 my ($local, @rest) = split (/:/, $arg);
8328 @rest = ("$local.in",) unless @rest;
8329 my $input = locate_am @rest;
8332 push @input_files, $input;
8333 $output_files{$input} = join (':', ($local, @rest));
8337 error "no Automake input file found for '$arg'";
8341 fatal "no input file found among supplied arguments"
8342 if $errspec && ! @input_files;
8346 # handle_makefile ($MAKEFILE_IN)
8347 # ------------------------------
8348 # Deal with $MAKEFILE_IN.
8349 sub handle_makefile ($)
8352 ($am_file = $file) =~ s/\.in$//;
8353 if (! -f ($am_file . '.am'))
8355 error "'$am_file.am' does not exist";
8359 # Any warning setting now local to this Makefile.am.
8362 generate_makefile ($am_file . '.am', $file);
8364 # Back out any warning setting.
8369 # handle_makefiles_serial ()
8370 # --------------------------
8371 # Deal with all makefiles, without threads.
8372 sub handle_makefiles_serial ()
8374 foreach my $file (@input_files)
8376 handle_makefile ($file);
8380 # get_number_of_threads ()
8381 # ------------------------
8382 # Logic for deciding how many worker threads to use.
8383 sub get_number_of_threads
8385 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8388 unless $nthreads =~ /^[0-9]+$/;
8390 # It doesn't make sense to use more threads than makefiles,
8391 my $max_threads = @input_files;
8393 if ($nthreads > $max_threads)
8395 $nthreads = $max_threads;
8400 # handle_makefiles_threaded ($NTHREADS)
8401 # -------------------------------------
8402 # Deal with all makefiles, using threads. The general strategy is to
8403 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8404 # worker threads push back everything that needs serialization:
8405 # * warning and (normal) error messages, for stable stderr output
8406 # order and content (avoiding duplicates, for example),
8407 # * races when installing aux files (and respective messages),
8408 # * races when collecting aux files for distribution.
8410 # The latter requires that the makefile that deals with the aux dir
8411 # files be handled last, done by the master thread.
8412 sub handle_makefiles_threaded ($)
8414 my ($nthreads) = @_;
8416 # The file queue distributes all makefiles, the message queues
8417 # collect all serializations needed for respective files.
8418 my $file_queue = Thread::Queue->new;
8420 foreach my $file (@input_files)
8422 $msg_queues{$file} = Thread::Queue->new;
8425 verb "spawning $nthreads worker threads";
8426 my @threads = (1 .. $nthreads);
8427 foreach my $t (@threads)
8429 $t = threads->new (sub
8431 while (my $file = $file_queue->dequeue)
8433 verb "handling $file";
8434 my $queue = $msg_queues{$file};
8435 setup_channel_queue ($queue, QUEUE_MESSAGE);
8436 $required_conf_file_queue = $queue;
8437 handle_makefile ($file);
8438 $queue->enqueue (undef);
8439 setup_channel_queue (undef, undef);
8440 $required_conf_file_queue = undef;
8446 # Queue all makefiles.
8447 verb "queuing " . @input_files . " input files";
8448 $file_queue->enqueue (@input_files, (undef) x @threads);
8450 # Collect and process serializations.
8451 foreach my $file (@input_files)
8453 verb "dequeuing messages for " . $file;
8454 reset_local_duplicates ();
8455 my $queue = $msg_queues{$file};
8456 while (my $key = $queue->dequeue)
8458 if ($key eq QUEUE_MESSAGE)
8460 pop_channel_queue ($queue);
8462 elsif ($key eq QUEUE_CONF_FILE)
8464 require_queued_file_check_or_copy ($queue);
8468 prog_error "unexpected key $key";
8473 foreach my $t (@threads)
8475 my @exit_thread = $t->join;
8476 $exit_code = $exit_thread[0]
8477 if ($exit_thread[0] > $exit_code);
8481 ################################################################
8483 # Parse the WARNINGS environment variable.
8486 # Parse command line.
8489 $configure_ac = require_configure_ac;
8491 # Do configure.ac scan only once.
8492 scan_autoconf_files;
8497 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8498 if -f 'Makefile.am';
8499 fatal ("no 'Makefile.am' found for any configure output$msg");
8502 my $nthreads = get_number_of_threads ();
8504 if ($perl_threads && $nthreads >= 1)
8506 handle_makefiles_threaded ($nthreads);
8510 handle_makefiles_serial ();
8516 ### Setup "GNU" style for perl-mode and cperl-mode.
8518 ## perl-indent-level: 2
8519 ## perl-continued-statement-offset: 2
8520 ## perl-continued-brace-offset: 0
8521 ## perl-brace-offset: 0
8522 ## perl-brace-imaginary-offset: 0
8523 ## perl-label-offset: -2
8524 ## cperl-indent-level: 2
8525 ## cperl-brace-offset: 0
8526 ## cperl-continued-brace-offset: 0
8527 ## cperl-label-offset: -2
8528 ## cperl-extra-newline-before-brace: t
8529 ## cperl-merge-trailing-else: nil
8530 ## cperl-continued-statement-offset: 2