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 $ENV{'DJDIR'};
46 struct (# Short name of the language (c, f77...).
48 # Nice name of the language (C, Fortran 77...).
51 # List of configure variables which must be defined.
54 # `pure' is `1' or `'. A `pure' language is one where, if
55 # all the files in a directory are of that language, then we
56 # do not require the C compiler or any code to call it.
61 # Name of the compiling variable (COMPILE).
63 # Content of the compiling variable.
65 # Flag to require compilation without linking (-c).
66 'compile_flag' => "\$",
68 # A subroutine to compute a list of possible extensions of
69 # the product given the input extensions.
70 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
71 'output_extensions' => "\$",
72 # A list of flag variables used in 'compile'.
76 # Any tag to pass to libtool while compiling.
77 'libtool_tag' => "\$",
79 # The file to use when generating rules for this language.
80 # The default is 'depend2'.
83 # Name of the linking variable (LINK).
85 # Content of the linking variable.
88 # Name of the compiler variable (CC).
91 # Name of the linker variable (LD).
93 # Content of the linker variable ($(CC)).
96 # Flag to specify the output file (-o).
97 'output_flag' => "\$",
100 # This is a subroutine which is called whenever we finally
101 # determine the context in which a source file will be
103 '_target_hook' => "\$",
105 # If TRUE, nodist_ sources will be compiled using specific rules
106 # (i.e. not inference rules). The default is FALSE.
107 'nodist_specific' => "\$");
113 if (defined $self->_finish)
115 &{$self->_finish} (@_);
119 sub target_hook ($$$$%)
122 if (defined $self->_target_hook)
124 &{$self->_target_hook} (@_);
131 use Automake::Config;
138 require Thread::Queue;
139 import Thread::Queue;
142 use Automake::General;
144 use Automake::Channels;
145 use Automake::ChannelDefs;
146 use Automake::Configure_ac;
147 use Automake::FileUtils;
148 use Automake::Location;
149 use Automake::Condition qw/TRUE FALSE/;
150 use Automake::DisjConditions;
151 use Automake::Options;
152 use Automake::Version;
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, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
256 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
258 # This Makefile.in is free software; the Free Software Foundation
259 # gives unlimited permission to copy and/or distribute it,
260 # with or without modifications, as long as this notice is preserved.
262 # This program is distributed in the hope that it will be useful,
263 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
264 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
265 # PARTICULAR PURPOSE.
268 # These constants are returned by the lang_*_rewrite functions.
269 # LANG_SUBDIR means that the resulting object file should be in a
270 # subdir if the source file is. In this case the file name cannot
271 # have `..' components.
272 use constant LANG_IGNORE => 0;
273 use constant LANG_PROCESS => 1;
274 use constant LANG_SUBDIR => 2;
276 # These are used when keeping track of whether an object can be built
277 # by two different paths.
278 use constant COMPILE_LIBTOOL => 1;
279 use constant COMPILE_ORDINARY => 2;
281 # We can't always associate a location to a variable or a rule,
282 # when it's defined by Automake. We use INTERNAL in this case.
283 use constant INTERNAL => new Automake::Location;
285 # Serialization keys for message queues.
286 use constant QUEUE_MESSAGE => "msg";
287 use constant QUEUE_CONF_FILE => "conf file";
288 use constant QUEUE_LOCATION => "location";
289 use constant QUEUE_STRING => "string";
292 ## ---------------------------------- ##
293 ## Variables related to the options. ##
294 ## ---------------------------------- ##
296 # TRUE if we should always generate Makefile.in.
297 my $force_generation = 1;
299 # From the Perl manual.
300 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
302 # TRUE if missing standard files should be installed.
305 # TRUE if we should copy missing files; otherwise symlink if possible.
306 my $copy_missing = 0;
308 # TRUE if we should always update files that we know about.
309 my $force_missing = 0;
312 ## ---------------------------------------- ##
313 ## Variables filled during files scanning. ##
314 ## ---------------------------------------- ##
316 # Name of the configure.ac file.
319 # Files found by scanning configure.ac for LIBOBJS.
322 # Names used in AC_CONFIG_HEADER call.
323 my @config_headers = ();
325 # Names used in AC_CONFIG_LINKS call.
326 my @config_links = ();
328 # List of Makefile.am's to process, and their corresponding outputs.
329 my @input_files = ();
330 my %output_files = ();
332 # Complete list of Makefile.am's that exist.
333 my @configure_input_files = ();
335 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
337 my @other_input_files = ();
338 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
339 # The keys are the files created by these macros.
340 my %ac_config_files_location = ();
341 # The condition under which AC_CONFIG_FOOS appears.
342 my %ac_config_files_condition = ();
344 # Directory to search for configure-required files. This
345 # will be computed by &locate_aux_dir and can be set using
346 # AC_CONFIG_AUX_DIR in configure.ac.
347 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
348 my $config_aux_dir = '';
349 my $config_aux_dir_set_in_configure_ac = 0;
350 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
352 my $am_config_aux_dir = '';
354 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
356 my $config_libobj_dir = '';
358 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
359 my $seen_gettext = 0;
360 # Whether AM_GNU_GETTEXT([external]) is used.
361 my $seen_gettext_external = 0;
362 # Where AM_GNU_GETTEXT appears.
363 my $ac_gettext_location;
364 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
365 my $seen_gettext_intl = 0;
367 # Lists of tags supported by Libtool.
368 my %libtool_tags = ();
369 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
370 # uses AC_REQUIRE_AUX_FILE.
371 my $libtool_new_api = 0;
373 # Most important AC_CANONICAL_* macro seen so far.
374 my $seen_canonical = 0;
375 # Location of that macro.
376 my $canonical_location;
378 # Where AM_MAINTAINER_MODE appears.
381 # Actual version we've seen.
382 my $package_version = '';
384 # Where version is defined.
385 my $package_version_location;
387 # TRUE if we've seen AM_PROG_AR
390 # TRUE if we've seen AM_PROG_CC_C_O
393 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
394 my %required_aux_file = ();
396 # Where AM_INIT_AUTOMAKE is called;
397 my $seen_init_automake = 0;
399 # TRUE if we've seen AM_AUTOMAKE_VERSION.
400 my $seen_automake_version = 0;
402 # Hash table of discovered configure substitutions. Keys are names,
403 # values are `FILE:LINE' strings which are used by error message
405 my %configure_vars = ();
407 # Ignored configure substitutions (i.e., variables not to be output in
409 my %ignored_configure_vars = ();
411 # Files included by $configure_ac.
412 my @configure_deps = ();
414 # Greatest timestamp of configure's dependencies.
415 my $configure_deps_greatest_timestamp = 0;
417 # Hash table of AM_CONDITIONAL variables seen in configure.
418 my %configure_cond = ();
420 # This maps extensions onto language names.
421 my %extension_map = ();
423 # List of the DIST_COMMON files we discovered while reading
425 my $configure_dist_common = '';
427 # This maps languages names onto objects.
429 # Maps each linker variable onto a language object.
430 my %link_languages = ();
432 # maps extensions to needed source flags.
433 my %sourceflags = ();
435 # List of targets we must always output.
436 # FIXME: Complete, and remove falsely required targets.
437 my %required_targets =
450 # FIXME: Not required, temporary hacks.
451 # Well, actually they are sort of required: the -recursive
452 # targets will run them anyway...
458 'install-data-am' => 1,
459 'install-exec-am' => 1,
460 'install-html-am' => 1,
461 'install-dvi-am' => 1,
462 'install-pdf-am' => 1,
463 'install-ps-am' => 1,
464 'install-info-am' => 1,
465 'installcheck-am' => 1,
471 # Queue to push require_conf_file requirements to.
472 my $required_conf_file_queue;
474 # The name of the Makefile currently being processed.
478 ################################################################
480 ## ------------------------------------------ ##
481 ## Variables reset by &initialize_per_input. ##
482 ## ------------------------------------------ ##
484 # Basename and relative dir of the input file.
488 # Same but wrt Makefile.in.
492 # Relative path to the top directory.
495 # Greatest timestamp of the output's dependencies (excluding
496 # configure's dependencies).
497 my $output_deps_greatest_timestamp;
499 # These variables are used when generating each Makefile.in.
500 # They hold the Makefile.in until it is ready to be printed.
507 # This is the conditional stack, updated on if/else/endif, and
508 # used to build Condition objects.
511 # This holds the set of included files.
514 # List of dependencies for the obvious targets.
519 # Keys in this hash table are files to delete. The associated
520 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
523 # Keys in this hash table are object files or other files in
524 # subdirectories which need to be removed. This only holds files
525 # which are created by compilations. The value in the hash indicates
526 # when the file should be removed.
527 my %compile_clean_files;
529 # Keys in this hash table are directories where we expect to build a
530 # libtool object. We use this information to decide what directories
532 my %libtool_clean_directories;
534 # Value of `$(SOURCES)', used by tags.am.
536 # Sources which go in the distribution.
539 # This hash maps object file names onto their corresponding source
540 # file names. This is used to ensure that each object is created
541 # by a single source file.
544 # This hash maps object file names onto an integer value representing
545 # whether this object has been built via ordinary compilation or
546 # libtool compilation (the COMPILE_* constants).
547 my %object_compilation_map;
550 # This keeps track of the directories for which we've already
551 # created dirstamp code. Keys are directories, values are stamp files.
552 # Several keys can share the same stamp files if they are equivalent
553 # (as are `.//foo' and `foo').
559 # This is a list of all targets to run during "make dist".
562 # Keep track of all programs declared in this Makefile, without
563 # $(EXEEXT). @substitutions@ are not listed.
567 # This keeps track of which extensions we've seen (that we care
571 # This is random scratch space for the language finish functions.
572 # Don't randomly overwrite it; examine other uses of keys first.
573 my %language_scratch;
575 # We keep track of which objects need special (per-executable)
576 # handling on a per-language basis.
577 my %lang_specific_files;
579 # This is set when `handle_dist' has finished. Once this happens,
580 # we should no longer push on dist_common.
583 # Used to store a set of linkers needed to generate the sources currently
584 # under consideration.
587 # True if we need `LINK' defined. This is a hack.
590 # Does the generated Makefile have to build some compiled object
591 # (for binary programs, or plain or libtool libraries)?
592 my $must_handle_compiled_objects;
594 # Record each file processed by make_paragraphs.
595 my %transformed_files;
598 ################################################################
600 ## ---------------------------------------------- ##
601 ## Variables not reset by &initialize_per_input. ##
602 ## ---------------------------------------------- ##
604 # Cache each file processed by make_paragraphs.
605 # (This is different from %transformed_files because
606 # %transformed_files is reset for each file while %am_file_cache
607 # it global to the run.)
610 ################################################################
612 # var_SUFFIXES_trigger ($TYPE, $VALUE)
613 # ------------------------------------
614 # This is called by Automake::Variable::define() when SUFFIXES
615 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
616 # The work here needs to be performed as a side-effect of the
617 # macro_define() call because SUFFIXES definitions impact
618 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
620 sub var_SUFFIXES_trigger ($$)
622 my ($type, $value) = @_;
623 accept_extensions (split (' ', $value));
625 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
627 ################################################################
629 ## --------------------------------- ##
630 ## Forward subroutine declarations. ##
631 ## --------------------------------- ##
632 sub register_language (%);
633 sub file_contents_internal ($$$%);
634 sub define_files_variable ($\@$$);
637 # &initialize_per_input ()
638 # ------------------------
639 # (Re)-Initialize per-Makefile.am variables.
640 sub initialize_per_input ()
642 reset_local_duplicates ();
644 $am_file_name = undef;
645 $am_relative_dir = undef;
647 $in_file_name = undef;
648 $relative_dir = undef;
651 $output_deps_greatest_timestamp = 0;
657 $output_trailer = '';
659 Automake::Options::reset;
660 Automake::Variable::reset;
661 Automake::Rule::reset;
672 %compile_clean_files = ();
674 # We always include `.'. This isn't strictly correct.
675 %libtool_clean_directories = ('.' => 1);
681 %object_compilation_map = ();
689 %known_programs = ();
690 %known_libraries= ();
692 %extension_seen = ();
694 %language_scratch = ();
696 %lang_specific_files = ();
698 $handle_dist_run = 0;
702 $must_handle_compiled_objects = 0;
704 %transformed_files = ();
708 ################################################################
710 # Initialize our list of languages that are internally supported.
713 register_language ('name' => 'c',
715 'config_vars' => ['CC'],
717 'flags' => ['CFLAGS', 'CPPFLAGS'],
719 'compiler' => 'COMPILE',
720 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
724 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
725 'compile_flag' => '-c',
726 'libtool_tag' => 'CC',
727 'extensions' => ['.c']);
730 register_language ('name' => 'cxx',
732 'config_vars' => ['CXX'],
733 'linker' => 'CXXLINK',
734 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
736 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
737 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
739 'compiler' => 'CXXCOMPILE',
740 'compile_flag' => '-c',
741 'output_flag' => '-o',
742 'libtool_tag' => 'CXX',
746 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
749 register_language ('name' => 'objc',
750 'Name' => 'Objective C',
751 'config_vars' => ['OBJC'],
752 'linker' => 'OBJCLINK',
753 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
755 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
756 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
758 'compiler' => 'OBJCCOMPILE',
759 'compile_flag' => '-c',
760 'output_flag' => '-o',
764 'extensions' => ['.m']);
766 # Unified Parallel C.
767 register_language ('name' => 'upc',
768 'Name' => 'Unified Parallel C',
769 'config_vars' => ['UPC'],
770 'linker' => 'UPCLINK',
771 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
773 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
774 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
776 'compiler' => 'UPCCOMPILE',
777 'compile_flag' => '-c',
778 'output_flag' => '-o',
782 'extensions' => ['.upc']);
785 register_language ('name' => 'header',
787 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
790 'output_extensions' => sub { return () },
792 '_finish' => sub { });
795 register_language ('name' => 'vala',
797 'config_vars' => ['VALAC'],
799 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
801 'compiler' => 'VALACOMPILE',
802 'extensions' => ['.vala'],
803 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
805 'rule_file' => 'vala',
806 '_finish' => \&lang_vala_finish,
807 '_target_hook' => \&lang_vala_target_hook,
808 'nodist_specific' => 1);
811 register_language ('name' => 'yacc',
813 'config_vars' => ['YACC'],
814 'flags' => ['YFLAGS'],
815 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
817 'compiler' => 'YACCCOMPILE',
818 'extensions' => ['.y'],
819 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
821 'rule_file' => 'yacc',
822 '_finish' => \&lang_yacc_finish,
823 '_target_hook' => \&lang_yacc_target_hook,
824 'nodist_specific' => 1);
825 register_language ('name' => 'yaccxx',
826 'Name' => 'Yacc (C++)',
827 'config_vars' => ['YACC'],
828 'rule_file' => 'yacc',
829 'flags' => ['YFLAGS'],
831 'compiler' => 'YACCCOMPILE',
832 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
833 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
834 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
836 '_finish' => \&lang_yacc_finish,
837 '_target_hook' => \&lang_yacc_target_hook,
838 'nodist_specific' => 1);
841 register_language ('name' => 'lex',
843 'config_vars' => ['LEX'],
844 'rule_file' => 'lex',
845 'flags' => ['LFLAGS'],
846 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
848 'compiler' => 'LEXCOMPILE',
849 'extensions' => ['.l'],
850 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
852 '_finish' => \&lang_lex_finish,
853 '_target_hook' => \&lang_lex_target_hook,
854 'nodist_specific' => 1);
855 register_language ('name' => 'lexxx',
856 'Name' => 'Lex (C++)',
857 'config_vars' => ['LEX'],
858 'rule_file' => 'lex',
859 'flags' => ['LFLAGS'],
860 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
862 'compiler' => 'LEXCOMPILE',
863 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
864 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
866 '_finish' => \&lang_lex_finish,
867 '_target_hook' => \&lang_lex_target_hook,
868 'nodist_specific' => 1);
871 register_language ('name' => 'asm',
872 'Name' => 'Assembler',
873 'config_vars' => ['CCAS', 'CCASFLAGS'],
875 'flags' => ['CCASFLAGS'],
876 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
877 # or anything else required. They can also set CCAS.
878 # Or simply use Preprocessed Assembler.
879 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
881 'compiler' => 'CCASCOMPILE',
882 'compile_flag' => '-c',
883 'output_flag' => '-o',
884 'extensions' => ['.s']);
886 # Preprocessed Assembler.
887 register_language ('name' => 'cppasm',
888 'Name' => 'Preprocessed Assembler',
889 'config_vars' => ['CCAS', 'CCASFLAGS'],
892 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
893 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
895 'compiler' => 'CPPASCOMPILE',
896 'compile_flag' => '-c',
897 'output_flag' => '-o',
898 'extensions' => ['.S', '.sx']);
901 register_language ('name' => 'f77',
902 'Name' => 'Fortran 77',
903 'config_vars' => ['F77'],
904 'linker' => 'F77LINK',
905 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
906 'flags' => ['FFLAGS'],
907 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
909 'compiler' => 'F77COMPILE',
910 'compile_flag' => '-c',
911 'output_flag' => '-o',
912 'libtool_tag' => 'F77',
916 'extensions' => ['.f', '.for']);
919 register_language ('name' => 'fc',
921 'config_vars' => ['FC'],
922 'linker' => 'FCLINK',
923 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
924 'flags' => ['FCFLAGS'],
925 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
927 'compiler' => 'FCCOMPILE',
928 'compile_flag' => '-c',
929 'output_flag' => '-o',
930 'libtool_tag' => 'FC',
934 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
936 # Preprocessed Fortran
937 register_language ('name' => 'ppfc',
938 'Name' => 'Preprocessed Fortran',
939 'config_vars' => ['FC'],
940 'linker' => 'FCLINK',
941 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
944 'flags' => ['FCFLAGS', 'CPPFLAGS'],
946 'compiler' => 'PPFCCOMPILE',
947 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
948 'compile_flag' => '-c',
949 'output_flag' => '-o',
950 'libtool_tag' => 'FC',
952 'extensions' => ['.F90','.F95', '.F03', '.F08']);
954 # Preprocessed Fortran 77
956 # The current support for preprocessing Fortran 77 just involves
957 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
958 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
959 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
960 # for `make' Version 3.76 Beta' (specifically, from info file
961 # `(make)Catalogue of Rules').
963 # A better approach would be to write an Autoconf test
964 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
965 # Fortran 77 compilers know how to do preprocessing. The Autoconf
966 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
967 # preprocessing capabilities, and then fall back on cpp (if cpp were
969 register_language ('name' => 'ppf77',
970 'Name' => 'Preprocessed Fortran 77',
971 'config_vars' => ['F77'],
972 'linker' => 'F77LINK',
973 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
976 'flags' => ['FFLAGS', 'CPPFLAGS'],
978 'compiler' => 'PPF77COMPILE',
979 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
980 'compile_flag' => '-c',
981 'output_flag' => '-o',
982 'libtool_tag' => 'F77',
984 'extensions' => ['.F']);
987 register_language ('name' => 'ratfor',
989 'config_vars' => ['F77'],
990 'linker' => 'F77LINK',
991 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
994 'flags' => ['RFLAGS', 'FFLAGS'],
996 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
998 'compiler' => 'RCOMPILE',
999 'compile_flag' => '-c',
1000 'output_flag' => '-o',
1001 'libtool_tag' => 'F77',
1003 'extensions' => ['.r']);
1006 register_language ('name' => 'java',
1008 'config_vars' => ['GCJ'],
1009 'linker' => 'GCJLINK',
1010 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1012 'flags' => ['GCJFLAGS'],
1013 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1015 'compiler' => 'GCJCOMPILE',
1016 'compile_flag' => '-c',
1017 'output_flag' => '-o',
1018 'libtool_tag' => 'GCJ',
1022 'extensions' => ['.java', '.class', '.zip', '.jar']);
1024 ################################################################
1026 # Error reporting functions.
1028 # err_am ($MESSAGE, [%OPTIONS])
1029 # -----------------------------
1030 # Uncategorized errors about the current Makefile.am.
1033 msg_am ('error', @_);
1036 # err_ac ($MESSAGE, [%OPTIONS])
1037 # -----------------------------
1038 # Uncategorized errors about configure.ac.
1041 msg_ac ('error', @_);
1044 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1045 # ---------------------------------------
1046 # Messages about about the current Makefile.am.
1049 my ($channel, $msg, %opts) = @_;
1050 msg $channel, "${am_file}.am", $msg, %opts;
1053 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1054 # ---------------------------------------
1055 # Messages about about configure.ac.
1058 my ($channel, $msg, %opts) = @_;
1059 msg $channel, $configure_ac, $msg, %opts;
1062 ################################################################
1066 # Return a configure-style substitution using the indicated text.
1067 # We do this to avoid having the substitutions directly in automake.in;
1068 # when we do that they are sometimes removed and this causes confusion
1073 return '@' . $text . '@';
1076 ################################################################
1080 # &backname ($REL-DIR)
1081 # --------------------
1082 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1083 # For instance `src/foo' => `../..'.
1084 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1089 foreach (split (/\//, $file))
1091 next if $_ eq '.' || $_ eq '';
1095 or prog_error ("trying to reverse path `$file' pointing outside tree");
1102 return join ('/', @res) || '.';
1105 ################################################################
1107 # `silent-rules' mode handling functions.
1109 # verbose_var (NAME)
1110 # ------------------
1111 # The public variable stem used to implement `silent-rules'.
1115 return 'AM_V_' . $name;
1118 # verbose_private_var (NAME)
1119 # --------------------------
1120 # The naming policy for the private variables for `silent-rules'.
1121 sub verbose_private_var ($)
1124 return 'am__v_' . $name;
1127 # define_verbose_var (NAME, VAL)
1128 # ------------------------------
1129 # For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1130 sub define_verbose_var ($$)
1132 my ($name, $val) = @_;
1133 my $var = verbose_var ($name);
1134 my $pvar = verbose_private_var ($name);
1135 my $silent_var = $pvar . '_0';
1136 if (option 'silent-rules')
1138 # For typical `make's, `configure' replaces AM_V (inside @@) with $(V)
1139 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1140 # For strict POSIX 2008 `make's, it replaces them with 0 or 1 instead.
1141 # See AM_SILENT_RULES in m4/silent.m4.
1142 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1143 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)', INTERNAL);
1144 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1145 '', INTERNAL, VAR_ASIS)
1146 if (! vardef ($silent_var, TRUE));
1150 # Above should not be needed in the general automake code.
1152 # verbose_flag (NAME)
1153 # -------------------
1154 # Contents of %VERBOSE%: variable to expand before rule command.
1155 sub verbose_flag ($)
1158 return '$(' . verbose_var ($name) . ')'
1159 if (option 'silent-rules');
1163 sub verbose_nodep_flag ($)
1166 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1167 if (option 'silent-rules');
1173 # Contents of %SILENT%: variable to expand to `@' when silent.
1176 return verbose_flag ('at');
1179 # define_verbose_tagvar (NAME)
1180 # ----------------------------
1181 # Engage the needed `silent-rules' machinery for tag NAME.
1182 sub define_verbose_tagvar ($)
1185 if (option 'silent-rules')
1187 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1188 define_verbose_var ('at', '@');
1192 # define_verbose_texinfo
1193 # ----------------------
1194 # Engage the needed `silent-rules' machinery for assorted texinfo commands.
1195 sub define_verbose_texinfo ()
1197 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1198 foreach my $tag (@tagvars)
1200 define_verbose_tagvar($tag);
1202 define_verbose_var('texinfo', '-q');
1203 define_verbose_var('texidevnull', '> /dev/null');
1206 # define_verbose_libtool
1207 # ----------------------
1208 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1209 sub define_verbose_libtool ()
1211 define_verbose_var ('lt', '--silent');
1212 return verbose_flag ('lt');
1216 ################################################################
1219 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1222 my $var = var ('AUTOMAKE_OPTIONS');
1225 if ($var->has_conditional_contents)
1227 msg_var ('unsupported', $var,
1228 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1230 my @options = map { { option => $_->[1], where => $_->[0] } }
1231 $var->value_as_list_recursive (cond_filter => TRUE,
1233 return 1 if process_option_list (@options);
1236 # Override portability-recursive warning.
1237 switch_warning ('no-portability-recursive')
1238 if option 'silent-rules';
1240 if ($strictness == GNITS)
1242 set_option ('readme-alpha', INTERNAL);
1243 set_option ('std-options', INTERNAL);
1244 set_option ('check-news', INTERNAL);
1250 # shadow_unconditionally ($varname, $where)
1251 # -----------------------------------------
1252 # Return a $(variable) that contains all possible values
1253 # $varname can take.
1254 # If the VAR wasn't defined conditionally, return $(VAR).
1255 # Otherwise we create an am__VAR_DIST variable which contains
1256 # all possible values, and return $(am__VAR_DIST).
1257 sub shadow_unconditionally ($$)
1259 my ($varname, $where) = @_;
1260 my $var = var $varname;
1261 if ($var->has_conditional_contents)
1263 $varname = "am__${varname}_DIST";
1264 my @files = uniq ($var->value_as_list_recursive);
1265 define_pretty_variable ($varname, TRUE, $where, @files);
1267 return "\$($varname)"
1270 # check_user_variables (@LIST)
1271 # ----------------------------
1272 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1274 sub check_user_variables (@)
1276 my @dont_override = @_;
1277 foreach my $flag (@dont_override)
1279 my $var = var $flag;
1282 for my $cond ($var->conditions->conds)
1284 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1286 msg_cond_var ('gnu', $cond, $flag,
1287 "`$flag' is a user variable, "
1288 . "you should not override it;\n"
1289 . "use `AM_$flag' instead");
1296 # Call finish function for each language that was used.
1297 sub handle_languages
1299 if (! option 'no-dependencies')
1301 # Include auto-dep code. Don't include it if DEP_FILES would
1303 if (&saw_sources_p (0) && keys %dep_files)
1305 # Set location of depcomp.
1306 &define_variable ('depcomp',
1307 "\$(SHELL) $am_config_aux_dir/depcomp",
1309 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1311 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1313 my @deplist = sort keys %dep_files;
1314 # Generate each `include' individually. Irix 6 make will
1315 # not properly include several files resulting from a
1316 # variable expansion; generating many separate includes
1318 $output_rules .= "\n";
1319 foreach my $iter (@deplist)
1321 $output_rules .= (subst ('AMDEP_TRUE')
1322 . subst ('am__include')
1324 . subst ('am__quote')
1326 . subst ('am__quote')
1330 # Compute the set of directories to remove in distclean-depend.
1331 my @depdirs = uniq (map { dirname ($_) } @deplist);
1332 $output_rules .= &file_contents ('depend',
1333 new Automake::Location,
1334 DEPDIRS => "@depdirs");
1339 &define_variable ('depcomp', '', INTERNAL);
1340 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1345 # Is the C linker needed?
1347 foreach my $ext (sort keys %extension_seen)
1349 next unless $extension_map{$ext};
1351 my $lang = $languages{$extension_map{$ext}};
1353 my $rule_file = $lang->rule_file || 'depend2';
1355 # Get information on $LANG.
1356 my $pfx = $lang->autodep;
1357 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1359 my ($AMDEP, $FASTDEP) =
1360 (option 'no-dependencies' || $lang->autodep eq 'no')
1361 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1363 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1364 my $verbose_nodep = ($AMDEP eq 'FALSE')
1365 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1366 my $silent = silent_flag ();
1368 my %transform = ('EXT' => $ext,
1372 'FASTDEP' => $FASTDEP,
1373 '-c' => $lang->compile_flag || '',
1374 # These are not used, but they need to be defined
1375 # so &transform do not complain.
1377 'DERIVED-EXT' => 'BUG',
1379 VERBOSE => $verbose,
1380 'VERBOSE-NODEP' => $verbose_nodep,
1384 # Generate the appropriate rules for this extension.
1385 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1386 || defined $lang->compile)
1388 # Some C compilers don't support -c -o. Use it only if really
1390 my $output_flag = $lang->output_flag || '';
1393 && $lang->name eq 'c'
1394 && option 'subdir-objects');
1396 # Compute a possible derived extension.
1397 # This is not used by depend2.am.
1398 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1400 # When we output an inference rule like `.c.o:' we
1401 # have two cases to consider: either subdir-objects
1402 # is used, or it is not.
1404 # In the latter case the rule is used to build objects
1405 # in the current directory, and dependencies always
1406 # go into `./$(DEPDIR)/'. We can hard-code this value.
1408 # In the former case the rule can be used to build
1409 # objects in sub-directories too. Dependencies should
1410 # go into the appropriate sub-directories, e.g.,
1411 # `sub/$(DEPDIR)/'. The value of this directory
1412 # needs to be computed on-the-fly.
1414 # DEPBASE holds the name of this directory, plus the
1415 # basename part of the object file (extensions Po, TPo,
1416 # Plo, TPlo will be added later as appropriate). It is
1417 # either hardcoded, or a shell variable (`$depbase') that
1418 # will be computed by the rule.
1420 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1422 file_contents ($rule_file,
1423 new Automake::Location,
1427 'DERIVED-EXT' => $der_ext,
1429 DEPBASE => $depbase,
1432 SOURCEFLAG => $sourceflags{$ext} || '',
1437 COMPILE => '$(' . $lang->compiler . ')',
1438 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1440 SUBDIROBJ => !! option 'subdir-objects');
1443 # Now include code for each specially handled object with this
1445 my %seen_files = ();
1446 foreach my $file (@{$lang_specific_files{$lang->name}})
1448 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1450 # We might see a given object twice, for instance if it is
1451 # used under different conditions.
1452 next if defined $seen_files{$obj};
1453 $seen_files{$obj} = 1;
1455 prog_error ("found " . $lang->name .
1456 " in handle_languages, but compiler not defined")
1457 unless defined $lang->compile;
1459 my $obj_compile = $lang->compile;
1461 # Rewrite each occurrence of `AM_$flag' in the compile
1462 # rule into `${derived}_$flag' if it exists.
1463 for my $flag (@{$lang->flags})
1465 my $val = "${derived}_$flag";
1466 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1470 my $libtool_tag = '';
1471 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1473 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1476 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1477 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1479 my $ltverbose = define_verbose_libtool ();
1481 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1482 . "--mode=compile $obj_compile";
1484 # We _need_ `-o' for per object rules.
1485 my $output_flag = $lang->output_flag || '-o';
1487 my $depbase = dirname ($obj);
1491 unless $depbase eq '';
1492 $depbase .= '$(DEPDIR)/' . basename ($obj);
1495 file_contents ($rule_file,
1496 new Automake::Location,
1500 DEPBASE => $depbase,
1503 SOURCEFLAG => $sourceflags{$srcext} || '',
1504 # Use $myext and not `.o' here, in case
1505 # we are actually building a new source
1506 # file -- e.g. via yacc.
1507 OBJ => "$obj$myext",
1508 OBJOBJ => "$obj.obj",
1511 VERBOSE => $verbose,
1512 'VERBOSE-NODEP' => $verbose_nodep,
1514 COMPILE => $obj_compile,
1515 LTCOMPILE => $obj_ltcompile,
1520 # The rest of the loop is done once per language.
1521 next if defined $done{$lang};
1524 # Load the language dependent Makefile chunks.
1525 my %lang = map { uc ($_) => 0 } keys %languages;
1526 $lang{uc ($lang->name)} = 1;
1527 $output_rules .= file_contents ('lang-compile',
1528 new Automake::Location,
1531 # If the source to a program consists entirely of code from a
1532 # `pure' language, for instance C++ or Fortran 77, then we
1533 # don't need the C compiler code. However if we run into
1534 # something unusual then we do generate the C code. There are
1535 # probably corner cases here that do not work properly.
1536 # People linking Java code to Fortran code deserve pain.
1537 $needs_c ||= ! $lang->pure;
1539 define_compiler_variable ($lang)
1540 if ($lang->compile);
1542 define_linker_variable ($lang)
1545 require_variables ("$am_file.am", $lang->Name . " source seen",
1546 TRUE, @{$lang->config_vars});
1548 # Call the finisher.
1551 # Flags listed in `->flags' are user variables (per GNU Standards),
1552 # they should not be overridden in the Makefile...
1553 my @dont_override = @{$lang->flags};
1554 # ... and so is LDFLAGS.
1555 push @dont_override, 'LDFLAGS' if $lang->link;
1557 check_user_variables @dont_override;
1560 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1561 # suffix rule was learned), don't bother with the C stuff. But if
1562 # anything else creeps in, then use it.
1564 if $need_link || suffix_rules_count > 1;
1568 &define_compiler_variable ($languages{'c'})
1569 unless defined $done{$languages{'c'}};
1570 define_linker_variable ($languages{'c'});
1573 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1574 define_verbose_tagvar ('GEN');
1578 # append_exeext { PREDICATE } $MACRO
1579 # ----------------------------------
1580 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1581 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1584 # This is typically used on all filenames of *_PROGRAMS, and filenames
1585 # of TESTS that are programs.
1586 sub append_exeext (&$)
1588 my ($pred, $macro) = @_;
1590 transform_variable_recursively
1591 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1593 my ($subvar, $val, $cond, $full_cond) = @_;
1594 # Append $(EXEEXT) unless the user did it already, or it's a
1597 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1603 # Check to make sure a source defined in LIBOBJS is not explicitly
1604 # mentioned. This is a separate function (as opposed to being inlined
1605 # in handle_source_transform) because it isn't always appropriate to
1607 sub check_libobjs_sources
1609 my ($one_file, $unxformed) = @_;
1611 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1612 'dist_EXTRA_', 'nodist_EXTRA_')
1615 my $varname = $prefix . $one_file . '_SOURCES';
1616 my $var = var ($varname);
1619 @files = $var->value_as_list_recursive;
1621 elsif ($prefix eq '')
1623 @files = ($unxformed . '.c');
1630 foreach my $file (@files)
1632 err_var ($prefix . $one_file . '_SOURCES',
1633 "automatically discovered file `$file' should not" .
1634 " be explicitly mentioned")
1635 if defined $libsources{$file};
1642 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1643 # -----------------------------------------------------------------------------
1644 # Does much of the actual work for handle_source_transform.
1646 # $VAR is the name of the variable that the source filenames come from
1647 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1648 # $DERIVED is the name of resulting executable or library
1649 # $OBJ is the object extension (e.g., `.lo')
1650 # $FILE the source file to transform
1651 # %TRANSFORM contains extras arguments to pass to file_contents
1652 # when producing explicit rules
1653 # Result is a list of the names of objects
1654 # %linkers_used will be updated with any linkers needed
1655 sub handle_single_transform ($$$$$%)
1657 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1658 my @files = ($_file);
1661 # Turn sources into objects. We use a while loop like this
1662 # because we might add to @files in the loop.
1663 while (scalar @files > 0)
1667 # Configure substitutions in _SOURCES variables are errors.
1670 my $parent_msg = '';
1671 $parent_msg = "\nand is referred to from `$topparent'"
1672 if $topparent ne $var->name;
1674 "`" . $var->name . "' includes configure substitution `$_'"
1675 . $parent_msg . ";\nconfigure " .
1676 "substitutions are not allowed in _SOURCES variables");
1680 # If the source file is in a subdirectory then the `.o' is put
1681 # into the current directory, unless the subdir-objects option
1684 # Split file name into base and extension.
1685 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1687 my $directory = $1 || '';
1691 # We must generate a rule for the object if it requires its own flags.
1693 my ($linker, $object);
1695 # This records whether we've seen a derived source file (e.g.
1697 my $derived_source = 0;
1699 # This holds the `aggregate context' of the file we are
1700 # currently examining. If the file is compiled with
1701 # per-object flags, then it will be the name of the object.
1702 # Otherwise it will be `AM'. This is used by the target hook
1703 # language function.
1704 my $aggregate = 'AM';
1706 $extension = &derive_suffix ($extension, $obj);
1708 if ($extension_map{$extension} &&
1709 ($lang = $languages{$extension_map{$extension}}))
1711 # Found the language, so see what it says.
1712 &saw_extension ($extension);
1714 # Do we have per-executable flags for this executable?
1715 my $have_per_exec_flags = 0;
1716 my @peflags = @{$lang->flags};
1717 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1718 foreach my $flag (@peflags)
1720 if (set_seen ("${derived}_$flag"))
1722 $have_per_exec_flags = 1;
1727 # Note: computed subr call. The language rewrite function
1728 # should return one of the LANG_* constants. It could
1729 # also return a list whose first value is such a constant
1730 # and whose second value is a new source extension which
1731 # should be applied. This means this particular language
1732 # generates another source file which we must then process
1734 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1735 my ($r, $source_extension)
1736 = &$subr ($directory, $base, $extension,
1737 $obj, $have_per_exec_flags, $var);
1738 # Skip this entry if we were asked not to process it.
1739 next if $r == LANG_IGNORE;
1741 # Now extract linker and other info.
1742 $linker = $lang->linker;
1745 if (defined $source_extension)
1747 $this_obj_ext = $source_extension;
1748 $derived_source = 1;
1752 $this_obj_ext = $obj;
1754 $object = $base . $this_obj_ext;
1756 if ($have_per_exec_flags)
1758 # We have a per-executable flag in effect for this
1759 # object. In this case we rewrite the object's
1760 # name to ensure it is unique.
1762 # We choose the name `DERIVED_OBJECT' to ensure
1763 # (1) uniqueness, and (2) continuity between
1764 # invocations. However, this will result in a
1765 # name that is too long for losing systems, in
1766 # some situations. So we provide _SHORTNAME to
1769 my $dname = $derived;
1770 my $var = var ($derived . '_SHORTNAME');
1773 # FIXME: should use the same Condition as
1774 # the _SOURCES variable. But this is really
1775 # silly overkill -- nobody should have
1776 # conditional shortnames.
1777 $dname = $var->variable_value;
1779 $object = $dname . '-' . $object;
1781 prog_error ($lang->name . " flags defined without compiler")
1782 if ! defined $lang->compile;
1787 # If rewrite said it was ok, put the object into a
1789 if ($r == LANG_SUBDIR && $directory ne '')
1791 $object = $directory . '/' . $object;
1794 # If the object file has been renamed (because per-target
1795 # flags are used) we cannot compile the file with an
1796 # inference rule: we need an explicit rule.
1798 # If the source is in a subdirectory and the object is in
1799 # the current directory, we also need an explicit rule.
1801 # If both source and object files are in a subdirectory
1802 # (this happens when the subdir-objects option is used),
1803 # then the inference will work.
1805 # The latter case deserves a historical note. When the
1806 # subdir-objects option was added on 1999-04-11 it was
1807 # thought that inferences rules would work for
1808 # subdirectory objects too. Later, on 1999-11-22,
1809 # automake was changed to output explicit rules even for
1810 # subdir-objects. Nobody remembers why, but this occurred
1811 # soon after the merge of the user-dep-gen-branch so it
1812 # might be related. In late 2003 people complained about
1813 # the size of the generated Makefile.ins (libgcj, with
1814 # 2200+ subdir objects was reported to have a 9MB
1815 # Makefile), so we now rely on inference rules again.
1816 # Maybe we'll run across the same issue as in the past,
1817 # but at least this time we can document it. However since
1818 # dependency tracking has evolved it is possible that
1819 # our old problem no longer exists.
1820 # Using inference rules for subdir-objects has been tested
1821 # with GNU make, Solaris make, Ultrix make, BSD make,
1822 # HP-UX make, and OSF1 make successfully.
1824 || ($directory ne '' && ! option 'subdir-objects')
1825 # We must also use specific rules for a nodist_ source
1826 # if its language requests it.
1827 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1829 my $obj_sans_ext = substr ($object, 0,
1830 - length ($this_obj_ext));
1832 if ($directory ne '')
1834 $full_ansi = $directory . '/' . $base . $extension;
1838 $full_ansi = $base . $extension;
1841 my @specifics = ($full_ansi, $obj_sans_ext,
1842 # Only use $this_obj_ext in the derived
1843 # source case because in the other case we
1844 # *don't* want $(OBJEXT) to appear here.
1845 ($derived_source ? $this_obj_ext : '.o'),
1848 # If we renamed the object then we want to use the
1849 # per-executable flag name. But if this is simply a
1850 # subdir build then we still want to use the AM_ flag
1854 unshift @specifics, $derived;
1855 $aggregate = $derived;
1859 unshift @specifics, 'AM';
1862 # Each item on this list is a reference to a list consisting
1863 # of four values followed by additional transform flags for
1864 # file_contents. The four values are the derived flag prefix
1865 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1866 # source file, the base name of the output file, and
1867 # the extension for the object file.
1868 push (@{$lang_specific_files{$lang->name}},
1869 [@specifics, %transform]);
1872 elsif ($extension eq $obj)
1874 # This is probably the result of a direct suffix rule.
1875 # In this case we just accept the rewrite.
1876 $object = "$base$extension";
1877 $object = "$directory/$object" if $directory ne '';
1882 # No error message here. Used to have one, but it was
1884 # FIXME: we could potentially do more processing here,
1885 # perhaps treating the new extension as though it were a
1886 # new source extension (as above). This would require
1887 # more restructuring than is appropriate right now.
1891 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1892 if (defined $object_map{$object}
1893 && $object_map{$object} ne $full);
1895 my $comp_val = (($object =~ /\.lo$/)
1896 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1897 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1898 if (defined $object_compilation_map{$comp_obj}
1899 && $object_compilation_map{$comp_obj} != 0
1900 # Only see the error once.
1901 && ($object_compilation_map{$comp_obj}
1902 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1903 && $object_compilation_map{$comp_obj} != $comp_val)
1905 err_am "object `$comp_obj' created both with libtool and without";
1907 $object_compilation_map{$comp_obj} |= $comp_val;
1911 # Let the language do some special magic if required.
1912 $lang->target_hook ($aggregate, $object, $full, %transform);
1915 if ($derived_source)
1917 prog_error ($lang->name . " has automatic dependency tracking")
1918 if $lang->autodep ne 'no';
1919 # Make sure this new source file is handled next. That will
1920 # make it appear to be at the right place in the list.
1921 unshift (@files, $object);
1922 # Distribute derived sources unless the source they are
1923 # derived from is not.
1924 &push_dist_common ($object)
1925 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1929 $linkers_used{$linker} = 1;
1931 push (@result, $object);
1933 if (! defined $object_map{$object})
1936 $object_map{$object} = $full;
1938 # If resulting object is in subdir, we need to make
1939 # sure the subdir exists at build time.
1940 if ($object =~ /\//)
1942 # FIXME: check that $DIRECTORY is somewhere in the
1945 # For Java, the way we're handling it right now, a
1946 # `..' component doesn't make sense.
1947 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1949 err_am "`$full' should not contain a `..' component";
1952 # Make sure object is removed by `make mostlyclean'.
1953 $compile_clean_files{$object} = MOSTLY_CLEAN;
1954 # If we have a libtool object then we also must remove
1956 if ($object =~ /\.lo$/)
1958 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1959 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1961 # Remove any libtool object in this directory.
1962 $libtool_clean_directories{$directory} = 1;
1965 push (@dep_list, require_build_directory ($directory));
1967 # If we're generating dependencies, we also want
1968 # to make sure that the appropriate subdir of the
1969 # .deps directory is created.
1971 require_build_directory ($directory . '/$(DEPDIR)'))
1972 unless option 'no-dependencies';
1975 &pretty_print_rule ($object . ':', "\t", @dep_list)
1976 if scalar @dep_list > 0;
1979 # Transform .o or $o file into .P file (for automatic
1981 # Properly flatten multiple adjacent slashes, as Solaris 10 make
1982 # might fail over them in an include statement.
1983 # Leading double slashes may be special, as per Posix, so deal
1984 # with them carefully.
1985 if ($lang && $lang->autodep ne 'no')
1987 my $depfile = $object;
1988 $depfile =~ s/\.([^.]*)$/.P$1/;
1989 $depfile =~ s/\$\(OBJEXT\)$/o/;
1990 my $maybe_extra_leading_slash = '';
1991 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
1992 $depfile =~ s,/+,/,g;
1993 my $basename = basename ($depfile);
1994 # This might make $dirname empty, but we account for that below.
1995 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
1996 $dirname = $maybe_extra_leading_slash . $dirname;
1997 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2006 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2007 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2008 # ---------------------------------------------------------------------------
2009 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2012 # $VAR is the name of the _SOURCES variable
2013 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2014 # it will be generated and returned).
2015 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2016 # work done to determine the linker will be).
2017 # $ONE_FILE is the canonical (transformed) name of object to build
2018 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2019 # $TOPPARENT is the _SOURCES variable being processed.
2020 # $WHERE context into which this definition is done
2021 # %TRANSFORM extra arguments to pass to file_contents when producing
2024 # Result is a pair ($LINKER, $OBJVAR):
2025 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2026 sub define_objects_from_sources ($$$$$$$%)
2028 my ($var, $objvar, $nodefine, $one_file,
2029 $obj, $topparent, $where, %transform) = @_;
2031 my $needlinker = "";
2033 transform_variable_recursively
2034 ($var, $objvar, 'am__objects', $nodefine, $where,
2035 # The transform code to run on each filename.
2037 my ($subvar, $val, $cond, $full_cond) = @_;
2038 my @trans = handle_single_transform ($subvar, $topparent,
2039 $one_file, $obj, $val,
2041 $needlinker = "true" if @trans;
2049 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2050 # -----------------------------------------------------------------------------
2051 # Handle SOURCE->OBJECT transform for one program or library.
2053 # canonical (transformed) name of target to build
2054 # actual target of object to build
2055 # object extension (i.e., either `.o' or `$o')
2056 # location of the source variable
2057 # extra arguments to pass to file_contents when producing rules
2058 # Return the name of the linker variable that must be used.
2059 # Empty return means just use `LINK'.
2060 sub handle_source_transform ($$$$%)
2062 # one_file is canonical name. unxformed is given name. obj is
2064 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2068 # No point in continuing if _OBJECTS is defined.
2069 return if reject_var ($one_file . '_OBJECTS',
2070 $one_file . '_OBJECTS should not be defined');
2075 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2076 'dist_EXTRA_', 'nodist_EXTRA_')
2078 my $varname = $prefix . $one_file . "_SOURCES";
2079 my $var = var $varname;
2082 # We are going to define _OBJECTS variables using the prefix.
2083 # Then we glom them all together. So we can't use the null
2084 # prefix here as we need it later.
2085 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2087 # Keep track of which prefixes we saw.
2088 $used_pfx{$xpfx} = 1
2089 unless $prefix =~ /EXTRA_/;
2091 push @sources, "\$($varname)";
2092 push @dist_sources, shadow_unconditionally ($varname, $where)
2093 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2096 define_objects_from_sources ($varname,
2097 $xpfx . $one_file . '_OBJECTS',
2098 $prefix =~ /EXTRA_/,
2099 $one_file, $obj, $varname, $where,
2100 DIST_SOURCE => ($prefix !~ /^nodist_/),
2105 $linker ||= &resolve_linker (%linkers_used);
2108 my @keys = sort keys %used_pfx;
2109 if (scalar @keys == 0)
2111 # The default source for libfoo.la is libfoo.c, but for
2112 # backward compatibility we first look at libfoo_la.c,
2113 # if no default source suffix is given.
2114 my $old_default_source = "$one_file.c";
2115 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2116 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2117 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2118 if $default_source_ext =~ /[\t ]/;
2119 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2120 if ($old_default_source ne $default_source
2122 && (rule $old_default_source
2123 || rule '$(srcdir)/' . $old_default_source
2124 || rule '${srcdir}/' . $old_default_source
2125 || -f $old_default_source))
2127 my $loc = $where->clone;
2129 msg ('obsolete', $loc,
2130 "the default source for `$unxformed' has been changed "
2131 . "to `$default_source'.\n(Using `$old_default_source' for "
2132 . "backward compatibility.)");
2133 $default_source = $old_default_source;
2135 # If a rule exists to build this source with a $(srcdir)
2136 # prefix, use that prefix in our variables too. This is for
2137 # the sake of BSD Make.
2138 if (rule '$(srcdir)/' . $default_source
2139 || rule '${srcdir}/' . $default_source)
2141 $default_source = '$(srcdir)/' . $default_source;
2144 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2145 push (@sources, $default_source);
2146 push (@dist_sources, $default_source);
2150 handle_single_transform ($one_file . '_SOURCES',
2151 $one_file . '_SOURCES',
2153 $default_source, %transform);
2154 $linker ||= &resolve_linker (%linkers_used);
2155 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2159 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2160 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2163 # If we want to use `LINK' we must make sure it is defined.
2173 # handle_lib_objects ($XNAME, $VAR)
2174 # ---------------------------------
2175 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2176 # Also, generate _DEPENDENCIES variable if appropriate.
2178 # transformed name of object being built, or empty string if no object
2179 # name of _LDADD/_LIBADD-type variable to examine
2180 # Returns 1 if LIBOBJS seen, 0 otherwise.
2181 sub handle_lib_objects
2183 my ($xname, $varname) = @_;
2185 my $var = var ($varname);
2186 prog_error "`$varname' undefined"
2188 prog_error "unexpected variable name `$varname'"
2189 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2190 my $prefix = $1 || 'AM_';
2192 my $seen_libobjs = 0;
2195 transform_variable_recursively
2196 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2198 # Transformation function, run on each filename.
2200 my ($subvar, $val, $cond, $full_cond) = @_;
2204 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2205 if ($val !~ /^-[lL]/ &&
2206 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2207 # for Libtool libraries or programs. (Actually we are a bit
2208 # lax here since this code also applies to non-libtool
2209 # libraries or programs, for which -dlopen and -dlopreopen
2210 # are pure nonsense. Diagnosing this doesn't seem very
2211 # important: the developer will quickly get complaints from
2213 $val !~ /^-dl(?:pre)?open$/ &&
2214 # Only get this error once.
2218 # FIXME: should display a stack of nested variables
2219 # as context when $var != $subvar.
2220 err_var ($var, "linker flags such as `$val' belong in "
2221 . "`${prefix}LDFLAGS'");
2225 elsif ($val !~ /^\@.*\@$/)
2227 # Assume we have a file of some sort, and output it into the
2228 # dependency variable. Autoconf substitutions are not output;
2229 # rarely is a new dependency substituted into e.g. foo_LDADD
2230 # -- but bad things (e.g. -lX11) are routinely substituted.
2231 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2232 # and handled specially below.
2235 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2237 handle_LIBOBJS ($subvar, $cond, $1);
2241 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2243 handle_ALLOCA ($subvar, $cond, $1);
2252 return $seen_libobjs;
2255 # handle_LIBOBJS_or_ALLOCA ($VAR)
2256 # -------------------------------
2257 # Definitions common to LIBOBJS and ALLOCA.
2258 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2259 sub handle_LIBOBJS_or_ALLOCA ($)
2265 # If LIBOBJS files must be built in another directory we have
2266 # to define LIBOBJDIR and ensure the files get cleaned.
2267 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2268 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2269 if ($config_libobj_dir
2270 && $relative_dir ne $config_libobj_dir)
2272 if (option 'subdir-objects')
2274 # In the top-level Makefile we do not use $(top_builddir), because
2275 # we are already there, and since the targets are built without
2276 # a $(top_builddir), it helps BSD Make to match them with
2278 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2279 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2280 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2281 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2282 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2283 # be created by libtool as a side-effect of creating LTLIBOBJS).
2284 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2288 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2289 . " `subdir-objects' is not set");
2296 sub handle_LIBOBJS ($$$)
2298 my ($var, $cond, $lt) = @_;
2299 my $myobjext = $lt ? 'lo' : 'o';
2302 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2303 if ! keys %libsources;
2305 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2307 foreach my $iter (keys %libsources)
2309 if ($iter =~ /\.[cly]$/)
2311 &saw_extension ($&);
2312 &saw_extension ('.c');
2315 if ($iter =~ /\.h$/)
2317 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2319 elsif ($iter ne 'alloca.c')
2321 my $rewrite = $iter;
2322 $rewrite =~ s/\.c$/.P$myobjext/;
2323 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2324 $rewrite = "^" . quotemeta ($iter) . "\$";
2325 # Only require the file if it is not a built source.
2326 my $bs = var ('BUILT_SOURCES');
2327 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2329 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2335 sub handle_ALLOCA ($$$)
2337 my ($var, $cond, $lt) = @_;
2338 my $myobjext = $lt ? 'lo' : 'o';
2340 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2342 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2343 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2344 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2345 &saw_extension ('.c');
2348 # Canonicalize the input parameter
2352 $string =~ tr/A-Za-z0-9_\@/_/c;
2356 # Canonicalize a name, and check to make sure the non-canonical name
2357 # is never used. Returns canonical name. Arguments are name and a
2358 # list of suffixes to check for.
2359 sub check_canonical_spelling
2361 my ($name, @suffixes) = @_;
2363 my $xname = &canonicalize ($name);
2364 if ($xname ne $name)
2366 foreach my $xt (@suffixes)
2368 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2378 # Set up the compile suite.
2379 sub handle_compile ()
2381 return if ! $must_handle_compiled_objects;
2384 my $default_includes = '';
2385 if (! option 'nostdinc')
2387 my @incs = ('-I.', subst ('am__isrc'));
2389 my $var = var 'CONFIG_HEADER';
2392 foreach my $hdr (split (' ', $var->variable_value))
2394 push @incs, '-I' . dirname ($hdr);
2397 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2398 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2399 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2400 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2401 # to just put @am__isrc@ right after `-I.', without a space.
2402 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2405 my (@mostly_rms, @dist_rms);
2406 foreach my $item (sort keys %compile_clean_files)
2408 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2410 push (@mostly_rms, "\t-rm -f $item");
2412 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2414 push (@dist_rms, "\t-rm -f $item");
2418 prog_error 'invalid entry in %compile_clean_files';
2422 my ($coms, $vars, $rules) =
2423 &file_contents_internal (1, "$libdir/am/compile.am",
2424 new Automake::Location,
2425 ('DEFAULT_INCLUDES' => $default_includes,
2426 'MOSTLYRMS' => join ("\n", @mostly_rms),
2427 'DISTRMS' => join ("\n", @dist_rms)));
2428 $output_vars .= $vars;
2429 $output_rules .= "$coms$rules";
2434 # Handle libtool rules.
2437 return unless var ('LIBTOOL');
2439 # Libtool requires some files, but only at top level.
2440 # (Starting with Libtool 2.0 we do not have to bother. These
2441 # requirements are done with AC_REQUIRE_AUX_FILE.)
2442 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2443 if $relative_dir eq '.' && ! $libtool_new_api;
2446 foreach my $item (sort keys %libtool_clean_directories)
2448 my $dir = ($item eq '.') ? '' : "$item/";
2449 # .libs is for Unix, _libs for DOS.
2450 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2453 check_user_variables 'LIBTOOLFLAGS';
2455 # Output the libtool compilation rules.
2456 $output_rules .= &file_contents ('libtool',
2457 new Automake::Location,
2458 LTRMS => join ("\n", @libtool_rms));
2461 # handle_programs ()
2462 # ------------------
2463 # Handle C programs.
2466 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2467 'bin', 'sbin', 'libexec', 'pkglibexec',
2469 return if ! @proglist;
2470 $must_handle_compiled_objects = 1;
2472 my $seen_global_libobjs =
2473 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2475 foreach my $pair (@proglist)
2477 my ($where, $one_file) = @$pair;
2479 my $seen_libobjs = 0;
2480 my $obj = '.$(OBJEXT)';
2482 $known_programs{$one_file} = $where;
2484 # Canonicalize names and check for misspellings.
2485 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2486 '_SOURCES', '_OBJECTS',
2489 $where->push_context ("while processing program `$one_file'");
2490 $where->set (INTERNAL->get);
2492 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2493 NONLIBTOOL => 1, LIBTOOL => 0);
2495 if (var ($xname . "_LDADD"))
2497 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2501 # User didn't define prog_LDADD override. So do it.
2502 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2504 # This does a bit too much work. But we need it to
2505 # generate _DEPENDENCIES when appropriate.
2508 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2512 reject_var ($xname . '_LIBADD',
2513 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2515 set_seen ($xname . '_DEPENDENCIES');
2516 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2517 set_seen ($xname . '_LDFLAGS');
2519 # Determine program to use for link.
2520 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2521 $vlink = verbose_flag ($vlink || 'GEN');
2523 # If the resulting program lies into a subdirectory,
2524 # make sure this directory will exist.
2525 my $dirstamp = require_build_directory_maybe ($one_file);
2527 $libtool_clean_directories{dirname ($one_file)} = 1;
2529 $output_rules .= &file_contents ('program',
2531 PROGRAM => $one_file,
2535 DIRSTAMP => $dirstamp,
2536 EXEEXT => '$(EXEEXT)');
2538 if ($seen_libobjs || $seen_global_libobjs)
2540 if (var ($xname . '_LDADD'))
2542 &check_libobjs_sources ($xname, $xname . '_LDADD');
2544 elsif (var ('LDADD'))
2546 &check_libobjs_sources ($xname, 'LDADD');
2553 # handle_libraries ()
2554 # -------------------
2556 sub handle_libraries
2558 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2559 'lib', 'pkglib', 'noinst', 'check');
2560 return if ! @liblist;
2561 $must_handle_compiled_objects = 1;
2563 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2568 my $var = rvar ($prefix[0] . '_LIBRARIES');
2569 $var->requires_variables ('library used', 'RANLIB');
2572 &define_variable ('AR', 'ar', INTERNAL);
2573 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2574 &define_verbose_tagvar ('AR');
2576 foreach my $pair (@liblist)
2578 my ($where, $onelib) = @$pair;
2580 my $seen_libobjs = 0;
2581 # Check that the library fits the standard naming convention.
2582 my $bn = basename ($onelib);
2583 if ($bn !~ /^lib.*\.a$/)
2585 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2586 my $suggestion = dirname ($onelib) . "/$bn";
2587 $suggestion =~ s|^\./||g;
2588 msg ('error-gnu/warn', $where,
2589 "`$onelib' is not a standard library name\n"
2590 . "did you mean `$suggestion'?")
2593 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2595 $where->push_context ("while processing library `$onelib'");
2596 $where->set (INTERNAL->get);
2598 my $obj = '.$(OBJEXT)';
2600 # Canonicalize names and check for misspellings.
2601 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2602 '_OBJECTS', '_DEPENDENCIES',
2605 if (! var ($xlib . '_AR'))
2607 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2610 # Generate support for conditional object inclusion in
2612 if (var ($xlib . '_LIBADD'))
2614 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2621 &define_variable ($xlib . "_LIBADD", '', $where);
2624 reject_var ($xlib . '_LDADD',
2625 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2627 # Make sure we at look at this.
2628 set_seen ($xlib . '_DEPENDENCIES');
2629 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2631 &handle_source_transform ($xlib, $onelib, $obj, $where,
2632 NONLIBTOOL => 1, LIBTOOL => 0);
2634 # If the resulting library lies into a subdirectory,
2635 # make sure this directory will exist.
2636 my $dirstamp = require_build_directory_maybe ($onelib);
2637 my $verbose = verbose_flag ('AR');
2638 my $silent = silent_flag ();
2640 $output_rules .= &file_contents ('library',
2642 VERBOSE => $verbose,
2646 DIRSTAMP => $dirstamp);
2650 if (var ($xlib . '_LIBADD'))
2652 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2658 msg ('extra-portability', $where,
2659 "`$onelib': linking libraries using a non-POSIX\n"
2660 . "archiver requires `AM_PROG_AR' in `$configure_ac'")
2666 # handle_ltlibraries ()
2667 # ---------------------
2668 # Handle shared libraries.
2669 sub handle_ltlibraries
2671 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2672 'noinst', 'lib', 'pkglib', 'check');
2673 return if ! @liblist;
2674 $must_handle_compiled_objects = 1;
2676 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2681 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2682 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2686 my %instsubdirs = ();
2688 my %liblocations = (); # Location (in Makefile.am) of each library.
2690 foreach my $key (@prefix)
2692 # Get the installation directory of each library.
2694 my $strip_subdir = 1;
2695 if ($dir =~ /^nobase_/)
2697 $dir =~ s/^nobase_//;
2700 my $var = rvar ($key . '_LTLIBRARIES');
2702 # We reject libraries which are installed in several places
2703 # in the same condition, because we can only specify one
2705 $var->traverse_recursively
2708 my ($var, $val, $cond, $full_cond) = @_;
2709 my $hcond = $full_cond->human;
2710 my $where = $var->rdef ($cond)->location;
2712 $ldir = '/' . dirname ($val)
2713 if (!$strip_subdir);
2714 # A library cannot be installed in different directories
2715 # in overlapping conditions.
2716 if (exists $instconds{$val})
2719 $instconds{$val}->ambiguous_p ($val, $full_cond);
2723 error ($where, $msg, partial => 1);
2724 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2725 $dirtxt = "built for `$dir'"
2726 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2728 $full_cond->true ? "" : " in condition $hcond";
2730 error ($where, "`$val' should be $dirtxt$dircond ...",
2733 my $hacond = $acond->human;
2734 my $adir = $instdirs{$val}{$acond};
2735 my $adirtxt = "installed in `$adir'";
2736 $adirtxt = "built for `$adir'"
2737 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2738 || $adir eq 'check');
2739 my $adircond = $acond->true ? "" : " in condition $hacond";
2741 my $onlyone = ($dir ne $adir) ?
2742 ("\nLibtool libraries can be built for only one "
2743 . "destination") : "";
2745 error ($liblocations{$val}{$acond},
2746 "... and should also be $adirtxt$adircond.$onlyone");
2752 $instconds{$val} = new Automake::DisjConditions;
2754 $instdirs{$val}{$full_cond} = $dir;
2755 $instsubdirs{$val}{$full_cond} = $ldir;
2756 $liblocations{$val}{$full_cond} = $where;
2757 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2763 skip_ac_subst => 1);
2766 foreach my $pair (@liblist)
2768 my ($where, $onelib) = @$pair;
2770 my $seen_libobjs = 0;
2773 # Canonicalize names and check for misspellings.
2774 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2775 '_SOURCES', '_OBJECTS',
2778 # Check that the library fits the standard naming convention.
2779 my $libname_rx = '^lib.*\.la';
2780 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2781 my $ldvar2 = var ('LDFLAGS');
2782 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2783 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2785 # Relax name checking for libtool modules.
2786 $libname_rx = '\.la';
2789 my $bn = basename ($onelib);
2790 if ($bn !~ /$libname_rx$/)
2792 my $type = 'library';
2793 if ($libname_rx eq '\.la')
2795 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2800 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2802 my $suggestion = dirname ($onelib) . "/$bn";
2803 $suggestion =~ s|^\./||g;
2804 msg ('error-gnu/warn', $where,
2805 "`$onelib' is not a standard libtool $type name\n"
2806 . "did you mean `$suggestion'?")
2809 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2811 $where->push_context ("while processing Libtool library `$onelib'");
2812 $where->set (INTERNAL->get);
2814 # Make sure we look at these.
2815 set_seen ($xlib . '_LDFLAGS');
2816 set_seen ($xlib . '_DEPENDENCIES');
2817 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2819 # Generate support for conditional object inclusion in
2821 if (var ($xlib . '_LIBADD'))
2823 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2830 &define_variable ($xlib . "_LIBADD", '', $where);
2833 reject_var ("${xlib}_LDADD",
2834 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2837 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2838 NONLIBTOOL => 0, LIBTOOL => 1);
2840 # Determine program to use for link.
2841 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2842 $vlink = verbose_flag ($vlink || 'GEN');
2844 my $rpathvar = "am_${xlib}_rpath";
2845 my $rpath = "\$($rpathvar)";
2846 foreach my $rcond ($instconds{$onelib}->conds)
2849 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2850 || $instdirs{$onelib}{$rcond} eq 'noinst'
2851 || $instdirs{$onelib}{$rcond} eq 'check')
2853 # It's an EXTRA_ library, so we can't specify -rpath,
2854 # because we don't know where the library will end up.
2855 # The user probably knows, but generally speaking automake
2856 # doesn't -- and in fact configure could decide
2857 # dynamically between two different locations.
2862 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2863 $val .= $instsubdirs{$onelib}{$rcond}
2864 if defined $instsubdirs{$onelib}{$rcond};
2868 # If $rcond is true there is only one condition and
2869 # there is no point defining an helper variable.
2874 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2878 # If the resulting library lies into a subdirectory,
2879 # make sure this directory will exist.
2880 my $dirstamp = require_build_directory_maybe ($onelib);
2882 # Remember to cleanup .libs/ in this directory.
2883 my $dirname = dirname $onelib;
2884 $libtool_clean_directories{$dirname} = 1;
2886 $output_rules .= &file_contents ('ltlibrary',
2888 LTLIBRARY => $onelib,
2889 XLTLIBRARY => $xlib,
2893 DIRSTAMP => $dirstamp);
2896 if (var ($xlib . '_LIBADD'))
2898 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2904 msg ('extra-portability', $where,
2905 "`$onelib': linking libtool libraries using a non-POSIX\n"
2906 . "archiver requires `AM_PROG_AR' in `$configure_ac'")
2911 # See if any _SOURCES variable were misspelled.
2914 # It is ok if the user sets this particular variable.
2915 set_seen 'AM_LDFLAGS';
2917 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2919 foreach my $var (variables $primary)
2921 my $varname = $var->name;
2922 # A configure variable is always legitimate.
2923 next if exists $configure_vars{$varname};
2925 for my $cond ($var->conditions->conds)
2927 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2928 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2929 . " program or\nlibrary has `$1' as canonical name"
2930 . " (possible typo)")
2931 unless $var->rdef ($cond)->seen;
2941 # NOTE we no longer automatically clean SCRIPTS, because it is
2942 # useful to sometimes distribute scripts verbatim. This happens
2943 # e.g. in Automake itself.
2944 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2945 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2952 ## ------------------------ ##
2953 ## Handling Texinfo files. ##
2954 ## ------------------------ ##
2956 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2957 # &scan_texinfo_file ($FILENAME)
2958 # ------------------------------
2959 # $OUTFILE - name of the info file produced by $FILENAME.
2960 # $VFILE - name of the version.texi file used (undef if none).
2961 # @CLEAN_FILES - list of byproducts (indexes etc.)
2962 sub scan_texinfo_file ($)
2964 my ($filename) = @_;
2966 # Some of the following extensions are always created, no matter
2967 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2968 # are only created when they are used. We used to scan $FILENAME
2969 # for their use, but that is not enough: they could be used in
2970 # included files. We can't scan included files because we don't
2971 # know the include path. Therefore we always erase these files, no
2972 # matter whether they are used or not.
2974 # (tmp is only created if an @macro is used and a certain e-TeX
2975 # feature is not available.)
2976 my %clean_suffixes =
2977 map { $_ => 1 } (qw(aux log toc tmp
2983 pg pgs)); # grep 'new.*index' texinfo.tex
2985 my $texi = new Automake::XFile "< $filename";
2986 verb "reading $filename";
2988 my ($outfile, $vfile);
2989 while ($_ = $texi->getline)
2991 if (/^\@setfilename +(\S+)/)
2993 # Honor only the first @setfilename. (It's possible to have
2994 # more occurrences later if the manual shows examples of how
2995 # to use @setfilename...)
2999 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3001 error ("$filename:$.",
3002 "output `$outfile' has unrecognized extension");
3006 # A "version.texi" file is actually any file whose name matches
3008 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3013 # Try to find new or unused indexes.
3015 # Creating a new category of index.
3016 elsif (/^\@def(code)?index (\w+)/)
3018 $clean_suffixes{$2} = 1;
3019 $clean_suffixes{"$2s"} = 1;
3022 # Merging an index into an another.
3023 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3025 delete $clean_suffixes{"$2s"};
3026 $clean_suffixes{"$3s"} = 1;
3033 err_am "`$filename' missing \@setfilename";
3037 my $infobase = basename ($filename);
3038 $infobase =~ s/\.te?xi(nfo)?$//;
3039 return ($outfile, $vfile,
3040 map { "$infobase.$_" } (sort keys %clean_suffixes));
3044 # ($DIRSTAMP, @CLEAN_FILES)
3045 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3046 # ------------------------------------------------------------------
3047 # SOURCE - the source Texinfo file
3048 # DEST - the destination Info file
3049 # INSRC - whether DEST should be built in the source tree
3050 # DEPENDENCIES - known dependencies
3051 sub output_texinfo_build_rules ($$$@)
3053 my ($source, $dest, $insrc, @deps) = @_;
3055 # Split `a.texi' into `a' and `.texi'.
3056 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3057 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3062 # We can output two kinds of rules: the "generic" rules use Make
3063 # suffix rules and are appropriate when $source and $dest do not lie
3064 # in a sub-directory; the "specific" rules are needed in the other
3067 # The former are output only once (this is not really apparent here,
3068 # but just remember that some logic deeper in Automake will not
3069 # output the same rule twice); while the later need to be output for
3070 # each Texinfo source.
3073 my $sdir = dirname $source;
3074 if ($sdir eq '.' && dirname ($dest) eq '.')
3077 $makeinfoflags = '-I $(srcdir)';
3082 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3085 # A directory can contain two kinds of info files: some built in the
3086 # source tree, and some built in the build tree. The rules are
3087 # different in each case. However we cannot output two different
3088 # set of generic rules. Because in-source builds are more usual, we
3089 # use generic rules in this case and fall back to "specific" rules
3090 # for build-dir builds. (It should not be a problem to invert this
3092 $generic = 0 unless $insrc;
3094 # We cannot use a suffix rule to build info files with an empty
3095 # extension. Otherwise we would output a single suffix inference
3096 # rule, with separate dependencies, as in
3100 # foo.info: foo.texi
3102 # which confuse Solaris make. (See the Autoconf manual for
3103 # details.) Therefore we use a specific rule in this case. This
3104 # applies to info files only (dvi and pdf files always have an
3106 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3108 # If the resulting file lie into a subdirectory,
3109 # make sure this directory will exist.
3110 my $dirstamp = require_build_directory_maybe ($dest);
3112 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3114 $output_rules .= file_contents ('texibuild',
3115 new Automake::Location,
3116 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3117 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3118 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3120 DEST_PREFIX => $dpfx,
3121 DEST_INFO_PREFIX => $dipfx,
3122 DEST_SUFFIX => $dsfx,
3123 DIRSTAMP => $dirstamp,
3124 GENERIC => $generic,
3125 GENERIC_INFO => $generic_info,
3127 MAKEINFOFLAGS => $makeinfoflags,
3128 SILENT => silent_flag(),
3131 SOURCE_INFO => ($generic_info
3133 SOURCE_REAL => $source,
3134 SOURCE_SUFFIX => $ssfx,
3135 TEXIQUIET => verbose_flag('texinfo'),
3136 TEXIDEVNULL => verbose_flag('texidevnull'),
3138 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3142 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3143 # handle_texinfo_helper ($info_texinfos)
3144 # --------------------------------------
3145 # Handle all Texinfo source; helper for handle_texinfo.
3146 sub handle_texinfo_helper ($)
3148 my ($info_texinfos) = @_;
3149 my (@infobase, @info_deps_list, @texi_deps);
3152 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3154 # Build a regex matching user-cleaned files.
3155 my $d = var 'DISTCLEANFILES';
3156 my $c = var 'CLEANFILES';
3158 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3159 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3160 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3161 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3164 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3166 my $infobase = $texi;
3167 $infobase =~ s/\.(txi|texinfo|texi)$//;
3169 if ($infobase eq $texi)
3171 # FIXME: report line number.
3172 err_am "texinfo file `$texi' has unrecognized extension";
3176 push @infobase, $infobase;
3178 # If 'version.texi' is referenced by input file, then include
3179 # automatic versioning capability.
3180 my ($out_file, $vtexi, @clean_files) =
3181 scan_texinfo_file ("$relative_dir/$texi")
3183 push (@mostly_cleans, @clean_files);
3185 # If the Texinfo source is in a subdirectory, create the
3186 # resulting info in this subdirectory. If it is in the current
3187 # directory, try hard to not prefix "./" because it breaks the
3189 my $outdir = dirname ($texi) . '/';
3190 $outdir = "" if $outdir eq './';
3191 $out_file = $outdir . $out_file;
3193 # Until Automake 1.6.3, .info files were built in the
3194 # source tree. This was an obstacle to the support of
3195 # non-distributed .info files, and non-distributed .texi
3198 # * Non-distributed .texi files is important in some packages
3199 # where .texi files are built at make time, probably using
3200 # other binaries built in the package itself, maybe using
3201 # tools or information found on the build host. Because
3202 # these files are not distributed they are always rebuilt
3203 # at make time; they should therefore not lie in the source
3204 # directory. One plan was to support this using
3205 # nodist_info_TEXINFOS or something similar. (Doing this
3206 # requires some sanity checks. For instance Automake should
3208 # dist_info_TEXINFOS = foo.texi
3209 # nodist_foo_TEXINFOS = included.texi
3210 # because a distributed file should never depend on a
3211 # non-distributed file.)
3213 # * If .texi files are not distributed, then .info files should
3214 # not be distributed either. There are also cases where one
3215 # wants to distribute .texi files, but does not want to
3216 # distribute the .info files. For instance the Texinfo package
3217 # distributes the tool used to build these files; it would
3218 # be a waste of space to distribute them. It's not clear
3219 # which syntax we should use to indicate that .info files should
3220 # not be distributed. Akim Demaille suggested that eventually
3221 # we switch to a new syntax:
3222 # | Maybe we should take some inspiration from what's already
3223 # | done in the rest of Automake. Maybe there is too much
3224 # | syntactic sugar here, and you want
3225 # | nodist_INFO = bar.info
3226 # | dist_bar_info_SOURCES = bar.texi
3227 # | bar_texi_DEPENDENCIES = foo.texi
3228 # | with a bit of magic to have bar.info represent the whole
3229 # | bar*info set. That's a lot more verbose that the current
3230 # | situation, but it is # not new, hence the user has less
3233 # | But there is still too much room for meaningless specs:
3234 # | nodist_INFO = bar.info
3235 # | dist_bar_info_SOURCES = bar.texi
3236 # | dist_PS = bar.ps something-written-by-hand.ps
3237 # | nodist_bar_ps_SOURCES = bar.texi
3238 # | bar_texi_DEPENDENCIES = foo.texi
3239 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3241 # Back to the point, it should be clear that in order to support
3242 # non-distributed .info files, we need to build them in the
3243 # build tree, not in the source tree (non-distributed .texi
3244 # files are less of a problem, because we do not output build
3245 # rules for them). In Automake 1.7 .info build rules have been
3246 # largely cleaned up so that .info files get always build in the
3247 # build tree, even when distributed. The idea was that
3248 # (1) if during a VPATH build the .info file was found to be
3249 # absent or out-of-date (in the source tree or in the
3250 # build tree), Make would rebuild it in the build tree.
3251 # If an up-to-date source-tree of the .info file existed,
3252 # make would not rebuild it in the build tree.
3253 # (2) having two copies of .info files, one in the source tree
3254 # and one (newer) in the build tree is not a problem
3255 # because `make dist' always pick files in the build tree
3257 # However it turned out the be a bad idea for several reasons:
3258 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3259 # like GNU Make on point (1) above. These implementations
3260 # of Make would always rebuild .info files in the build
3261 # tree, even if such files were up to date in the source
3262 # tree. Consequently, it was impossible to perform a VPATH
3263 # build of a package containing Texinfo files using these
3264 # Make implementations.
3265 # (Refer to the Autoconf Manual, section "Limitation of
3266 # Make", paragraph "VPATH", item "target lookup", for
3267 # an account of the differences between these
3269 # * The GNU Coding Standards require these files to be built
3270 # in the source-tree (when they are distributed, that is).
3271 # * Keeping a fresher copy of distributed files in the
3272 # build tree can be annoying during development because
3273 # - if the files is kept under CVS, you really want it
3274 # to be updated in the source tree
3275 # - it is confusing that `make distclean' does not erase
3276 # all files in the build tree.
3278 # Consequently, starting with Automake 1.8, .info files are
3279 # built in the source tree again. Because we still plan to
3280 # support non-distributed .info files at some point, we
3281 # have a single variable ($INSRC) that controls whether
3282 # the current .info file must be built in the source tree
3283 # or in the build tree. Actually this variable is switched
3284 # off for .info files that appear to be cleaned; this is
3285 # for backward compatibility with package such as Texinfo,
3286 # which do things like
3287 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3288 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3289 # # Do not create info files for distribution.
3291 # in order not to distribute .info files.
3292 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3294 my $soutdir = '$(srcdir)/' . $outdir;
3295 $outdir = $soutdir if $insrc;
3297 # If user specified file_TEXINFOS, then use that as explicit
3300 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3302 my $canonical = canonicalize ($infobase);
3303 if (var ($canonical . "_TEXINFOS"))
3305 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3306 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3309 my ($dirstamp, @cfiles) =
3310 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3311 push (@texi_cleans, @cfiles);
3313 push (@info_deps_list, $out_file);
3315 # If a vers*.texi file is needed, emit the rule.
3318 err_am ("`$vtexi', included in `$texi', "
3319 . "also included in `$versions{$vtexi}'")
3320 if defined $versions{$vtexi};
3321 $versions{$vtexi} = $texi;
3323 # We number the stamp-vti files. This is doable since the
3324 # actual names don't matter much. We only number starting
3325 # with the second one, so that the common case looks nice.
3326 my $vti = ($done ? $done : 'vti');
3329 # This is ugly, but it is our historical practice.
3330 if ($config_aux_dir_set_in_configure_ac)
3332 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3337 require_file_with_macro (TRUE, 'info_TEXINFOS',
3338 FOREIGN, 'mdate-sh');
3342 if ($config_aux_dir_set_in_configure_ac)
3344 $conf_dir = "$am_config_aux_dir/";
3348 $conf_dir = '$(srcdir)/';
3350 $output_rules .= file_contents ('texi-vers',
3351 new Automake::Location,
3354 STAMPVTI => "${soutdir}stamp-$vti",
3355 VTEXI => "$soutdir$vtexi",
3357 DIRSTAMP => $dirstamp);
3361 # Handle location of texinfo.tex.
3362 my $need_texi_file = 0;
3364 if (var ('TEXINFO_TEX'))
3366 # The user defined TEXINFO_TEX so assume he knows what he is
3368 $texinfodir = ('$(srcdir)/'
3369 . dirname (variable_value ('TEXINFO_TEX')));
3371 elsif (option 'cygnus')
3373 $texinfodir = '$(top_srcdir)/../texinfo';
3374 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3376 elsif ($config_aux_dir_set_in_configure_ac)
3378 $texinfodir = $am_config_aux_dir;
3379 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3380 $need_texi_file = 2; # so that we require_conf_file later
3384 $texinfodir = '$(srcdir)';
3385 $need_texi_file = 1;
3387 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3389 push (@dist_targets, 'dist-info');
3391 if (! option 'no-installinfo')
3393 # Make sure documentation is made and installed first. Use
3394 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3395 # get run twice during "make all".
3396 unshift (@all, '$(INFO_DEPS)');
3399 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3400 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3401 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3402 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3404 # This next isn't strictly needed now -- the places that look here
3405 # could easily be changed to look in info_TEXINFOS. But this is
3406 # probably better, in case noinst_TEXINFOS is ever supported.
3407 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3409 # Do some error checking. Note that this file is not required
3410 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3412 if ($need_texi_file && ! option 'no-texinfo.tex')
3414 if ($need_texi_file > 1)
3416 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3421 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3426 return (makefile_wrap ("", "\t ", @mostly_cleans),
3427 makefile_wrap ("", "\t ", @texi_cleans),
3428 makefile_wrap ("", "\t ", @maint_cleans));
3434 # Handle all Texinfo source.
3435 sub handle_texinfo ()
3437 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3438 # FIXME: I think this is an obsolete future feature name.
3439 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3441 my $info_texinfos = var ('info_TEXINFOS');
3442 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3445 define_verbose_texinfo;
3446 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3452 $output_rules .= file_contents ('texinfos',
3453 new Automake::Location,
3454 AM_V_DVIPS => verbose_flag('DVIPS'),
3455 MOSTLYCLEAN => $mostlyclean,
3456 TEXICLEAN => $clean,
3457 MAINTCLEAN => $maintclean,
3458 'LOCAL-TEXIS' => !!$info_texinfos,
3459 TEXIQUIET => verbose_flag('texinfo'));
3463 # Handle any man pages.
3464 sub handle_man_pages
3466 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3468 # Find all the sections in use. We do this by first looking for
3469 # "standard" sections, and then looking for any additional
3470 # sections used in man_MANS.
3471 my (%sections, %notrans_sections, %trans_sections,
3472 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3473 # We handle nodist_ for uniformity. man pages aren't distributed
3474 # by default so it isn't actually very important.
3475 foreach my $npfx ('', 'notrans_')
3477 foreach my $pfx ('', 'dist_', 'nodist_')
3479 # Add more sections as needed.
3480 foreach my $section ('0'..'9', 'n', 'l')
3482 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3485 $sections{$section} = 1;
3486 $varname = '$(' . $varname . ')';
3487 if ($npfx eq 'notrans_')
3489 $notrans_sections{$section} = 1;
3490 $notrans_sect_vars{$varname} = 1;
3494 $trans_sections{$section} = 1;
3495 $trans_sect_vars{$varname} = 1;
3498 &push_dist_common ($varname)
3503 my $varname = $npfx . $pfx . 'man_MANS';
3504 my $var = var ($varname);
3507 foreach ($var->value_as_list_recursive)
3509 # A page like `foo.1c' goes into man1dir.
3510 if (/\.([0-9a-z])([a-z]*)$/)
3513 if ($npfx eq 'notrans_')
3515 $notrans_sections{$1} = 1;
3519 $trans_sections{$1} = 1;
3524 $varname = '$(' . $varname . ')';
3525 if ($npfx eq 'notrans_')
3527 $notrans_vars{$varname} = 1;
3531 $trans_vars{$varname} = 1;
3533 &push_dist_common ($varname)
3539 return unless %sections;
3543 # Build section independent variables.
3544 my $have_notrans = %notrans_vars;
3545 my @notrans_list = sort keys %notrans_vars;
3546 my $have_trans = %trans_vars;
3547 my @trans_list = sort keys %trans_vars;
3549 # Now for each section, generate an install and uninstall rule.
3550 # Sort sections so output is deterministic.
3551 foreach my $section (sort keys %sections)
3553 # Build section dependent variables.
3554 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3555 my $trans_mans = $have_trans || exists $trans_sections{$section};
3556 my (%notrans_this_sect, %trans_this_sect);
3557 my $expr = 'man' . $section . '_MANS';
3558 foreach my $varname (keys %notrans_sect_vars)
3560 if ($varname =~ /$expr/)
3562 $notrans_this_sect{$varname} = 1;
3565 foreach my $varname (keys %trans_sect_vars)
3567 if ($varname =~ /$expr/)
3569 $trans_this_sect{$varname} = 1;
3572 my @notrans_sect_list = sort keys %notrans_this_sect;
3573 my @trans_sect_list = sort keys %trans_this_sect;
3574 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3575 keys %notrans_this_sect, keys %trans_this_sect);
3576 my @deps = sort @unsorted_deps;
3577 $output_rules .= &file_contents ('mans',
3578 new Automake::Location,
3579 SECTION => $section,
3581 NOTRANS_MANS => $notrans_mans,
3582 NOTRANS_SECT_LIST => "@notrans_sect_list",
3583 HAVE_NOTRANS => $have_notrans,
3584 NOTRANS_LIST => "@notrans_list",
3585 TRANS_MANS => $trans_mans,
3586 TRANS_SECT_LIST => "@trans_sect_list",
3587 HAVE_TRANS => $have_trans,
3588 TRANS_LIST => "@trans_list");
3591 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3592 keys %notrans_sect_vars, keys %trans_sect_vars);
3593 my @mans = sort @unsorted_deps;
3594 $output_vars .= file_contents ('mans-vars',
3595 new Automake::Location,
3598 push (@all, '$(MANS)')
3599 unless option 'no-installman';
3602 # Handle DATA variables.
3605 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3606 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3607 'ps', 'sysconf', 'sharedstate', 'localstate',
3608 'pkgdata', 'lisp', 'noinst', 'check');
3616 my @cscope_deps = ();
3617 if (var ('SUBDIRS'))
3619 $output_rules .= ("tags-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) tags); \\\n"
3626 push (@tag_deps, 'tags-recursive');
3627 &depend ('.PHONY', 'tags-recursive');
3628 &depend ('.MAKE', 'tags-recursive');
3630 $output_rules .= ("ctags-recursive:\n"
3631 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3632 # Never fail here if a subdir fails; it
3634 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3635 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3637 push (@ctag_deps, 'ctags-recursive');
3638 &depend ('.PHONY', 'ctags-recursive');
3639 &depend ('.MAKE', 'ctags-recursive');
3641 $output_rules .= ("cscopelist-recursive:\n"
3642 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3643 # Never fail here if a subdir fails; it
3645 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3646 . " && \$(MAKE) \$(AM_MAKEFLAGS) cscopelist); \\\n"
3648 push (@cscope_deps, 'cscopelist-recursive');
3649 &depend ('.PHONY', 'cscopelist-recursive');
3650 &depend ('.MAKE', 'cscopelist-recursive');
3653 if (&saw_sources_p (1)
3654 || var ('ETAGS_ARGS')
3658 foreach my $spec (@config_headers)
3660 my ($out, @ins) = split_config_file_spec ($spec);
3661 foreach my $in (@ins)
3663 # If the config header source is in this directory,
3665 push @config, basename ($in)
3666 if $relative_dir eq dirname ($in);
3669 $output_rules .= &file_contents ('tags',
3670 new Automake::Location,
3671 CONFIG => "@config",
3672 TAGSDIRS => "@tag_deps",
3673 CTAGSDIRS => "@ctag_deps",
3674 CSCOPEDIRS => "@cscope_deps");
3676 set_seen 'TAGS_DEPENDENCIES';
3678 elsif (reject_var ('TAGS_DEPENDENCIES',
3679 "it doesn't make sense to define `TAGS_DEPENDENCIES'"
3680 . " without\nsources or `ETAGS_ARGS'"))
3685 # Every Makefile must define some sort of TAGS rule.
3686 # Otherwise, it would be possible for a top-level "make TAGS"
3687 # to fail because some subdirectory failed.
3688 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3689 # Ditto ctags and cscope.
3690 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3691 $output_rules .= "cscope cscopelist:\n\n";
3696 # user_phony_rule ($NAME)
3697 # -----------------------
3698 # Return false if rule $NAME does not exist. Otherwise,
3699 # declare it as phony, complete its definition (in case it is
3700 # conditional), and return its Automake::Rule instance.
3701 sub user_phony_rule ($)
3704 my $rule = rule $name;
3707 depend ('.PHONY', $name);
3708 # Define $NAME in all condition where it is not already defined,
3709 # so that it is always OK to depend on $NAME.
3710 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3712 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3714 $output_rules .= $c->subst_string . "$name:\n";
3722 # &for_dist_common ($A, $B)
3723 # -------------------------
3724 # Subroutine for &handle_dist: sort files to dist.
3726 # We put README first because it then becomes easier to make a
3727 # Usenet-compliant shar file (in these, README must be first).
3729 # FIXME: do more ordering of files here.
3743 # Handle 'dist' target.
3746 # Substitutions for distdir.am
3749 # Define DIST_SUBDIRS. This must always be done, regardless of the
3750 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3751 my $subdirs = var ('SUBDIRS');
3754 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3755 # to all possible directories, and use it. If DIST_SUBDIRS is
3756 # defined, just use it.
3758 # Note that we check DIST_SUBDIRS first on purpose, so that
3759 # we don't call has_conditional_contents for now reason.
3760 # (In the past one project used so many conditional subdirectories
3761 # that calling has_conditional_contents on SUBDIRS caused
3762 # automake to grow to 150Mb -- this should not happen with
3763 # the current implementation of has_conditional_contents,
3764 # but it's more efficient to avoid the call anyway.)
3765 if (var ('DIST_SUBDIRS'))
3768 elsif ($subdirs->has_conditional_contents)
3770 define_pretty_variable
3771 ('DIST_SUBDIRS', TRUE, INTERNAL,
3772 uniq ($subdirs->value_as_list_recursive));
3776 # We always define this because that is what `distclean'
3778 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3783 # The remaining definitions are only required when a dist target is used.
3784 return if option 'no-dist';
3786 # At least one of the archive formats must be enabled.
3787 if ($relative_dir eq '.')
3789 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3790 $archive_defined ||=
3791 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3792 error (option 'no-dist-gzip',
3793 "no-dist-gzip specified but no dist-* specified,\n"
3794 . "at least one archive format must be enabled")
3795 unless $archive_defined;
3798 # Look for common files that should be included in distribution.
3799 # If the aux dir is set, and it does not have a Makefile.am, then
3800 # we check for these files there as well.
3802 if ($relative_dir eq '.'
3803 && $config_aux_dir_set_in_configure_ac)
3805 if (! &is_make_dir ($config_aux_dir))
3810 foreach my $cfile (@common_files)
3812 if (dir_has_case_matching_file ($relative_dir, $cfile)
3813 # The file might be absent, but if it can be built it's ok.
3816 &push_dist_common ($cfile);
3819 # Don't use `elsif' here because a file might meaningfully
3820 # appear in both directories.
3821 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3823 &push_dist_common ("$config_aux_dir/$cfile")
3827 # We might copy elements from $configure_dist_common to
3828 # %dist_common if we think we need to. If the file appears in our
3829 # directory, we would have discovered it already, so we don't
3830 # check that. But if the file is in a subdir without a Makefile,
3831 # we want to distribute it here if we are doing `.'. Ugly!
3832 # Also, in some corner cases, it's possible that the following code
3833 # will cause the same file to appear in the $(DIST_COMMON) variables
3834 # of two distinct Makefiles; but this is not a problem, since the
3835 # `distdir' target in `lib/am/distdir.am' can deal with the same
3836 # file being distributed multiple times.
3837 # See also automake bug#9651.
3838 if ($relative_dir eq '.')
3840 foreach my $file (split (' ' , $configure_dist_common))
3842 my $dir = dirname ($file);
3843 push_dist_common ($file)
3844 if ($dir eq '.' || ! is_make_dir ($dir));
3848 # Files to distributed. Don't use ->value_as_list_recursive
3849 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3850 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3851 @dist_common = uniq (sort for_dist_common (@dist_common));
3852 variable_delete 'DIST_COMMON';
3853 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3855 # Now that we've processed DIST_COMMON, disallow further attempts
3857 $handle_dist_run = 1;
3859 # Scan EXTRA_DIST to see if we need to distribute anything from a
3860 # subdir. If so, add it to the list. I didn't want to do this
3861 # originally, but there were so many requests that I finally
3863 my $extra_dist = var ('EXTRA_DIST');
3865 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3866 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3868 # If the target `dist-hook' exists, make sure it is run. This
3869 # allows users to do random weird things to the distribution
3870 # before it is packaged up.
3871 push (@dist_targets, 'dist-hook')
3872 if user_phony_rule 'dist-hook';
3873 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3875 my $flm = option ('filename-length-max');
3876 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3878 $output_rules .= &file_contents ('distdir',
3879 new Automake::Location,
3881 FILENAME_FILTER => $filename_filter);
3885 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3886 # -------------------------------------------------------
3887 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3888 # name. Use $WHERE as a location in the diagnostic, if any.
3889 sub check_directory ($$;$)
3891 my ($dir, $where, $reldir) = @_;
3892 $reldir = '.' unless defined $reldir;
3894 error $where, "required directory $reldir/$dir does not exist"
3895 unless -d "$reldir/$dir";
3897 # If an `obj/' directory exists, BSD make will enter it before
3898 # reading `Makefile'. Hence the `Makefile' in the current directory
3904 # % cat obj/Makefile
3910 # % pmake # BSD make
3913 msg ('portability', $where,
3914 "naming a subdirectory `obj' causes troubles with BSD make")
3917 # `aux' is probably the most important of the following forbidden name,
3918 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3919 msg ('portability', $where,
3920 "name `$dir' is reserved on W32 and DOS platforms")
3921 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3924 # check_directories_in_var ($VARIABLE)
3925 # ------------------------------------
3926 # Recursively check all items in variables $VARIABLE as directories
3927 sub check_directories_in_var ($)
3930 $var->traverse_recursively
3933 my ($var, $val, $cond, $full_cond) = @_;
3934 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3938 skip_ac_subst => 1);
3941 # &handle_subdirs ()
3942 # ------------------
3943 # Handle subdirectories.
3944 sub handle_subdirs ()
3946 my $subdirs = var ('SUBDIRS');
3950 check_directories_in_var $subdirs;
3952 my $dsubdirs = var ('DIST_SUBDIRS');
3953 check_directories_in_var $dsubdirs
3956 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3957 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3961 # ($REGEN, @DEPENDENCIES)
3964 # If aclocal.m4 creation is automated, return the list of its dependencies.
3965 sub scan_aclocal_m4 ()
3967 my $regen_aclocal = 0;
3969 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3970 set_seen 'CONFIGURE_DEPENDENCIES';
3972 if (-f 'aclocal.m4')
3974 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3976 my $aclocal = new Automake::XFile "< aclocal.m4";
3977 my $line = $aclocal->getline;
3978 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3983 if (set_seen ('ACLOCAL_M4_SOURCES'))
3985 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3986 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3987 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3988 . "It should be safe to simply remove it");
3991 # Note that it might be possible that aclocal.m4 doesn't exist but
3992 # should be auto-generated. This case probably isn't very
3995 return ($regen_aclocal, @ac_deps);
3999 # Helper function for substitute_ac_subst_variables.
4000 sub substitute_ac_subst_variables_worker($)
4003 return "\@$token\@" if var $token;
4004 return "\${$token\}";
4007 # substitute_ac_subst_variables ($TEXT)
4008 # -------------------------------------
4009 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4011 sub substitute_ac_subst_variables ($)
4014 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4019 # &prepend_srcdir (@INPUTS)
4020 # -------------------------
4021 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4022 # if an input file has a directory part the same as the current
4023 # directory, then the directory part is simply replaced by $(srcdir).
4024 # But if the directory part is different, then $(top_srcdir) is
4026 sub prepend_srcdir (@)
4031 foreach my $single (@inputs)
4033 if (dirname ($single) eq $relative_dir)
4035 push (@newinputs, '$(srcdir)/' . basename ($single));
4039 push (@newinputs, '$(top_srcdir)/' . $single);
4046 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4047 # ---------------------------------------------------
4048 # Compute a list of dependencies appropriate for the rebuild
4050 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4051 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4052 sub rewrite_inputs_into_dependencies ($@)
4054 my ($file, @inputs) = @_;
4059 # We cannot create dependencies on shell variables.
4060 next if (substitute_ac_subst_variables $i) =~ /\$/;
4062 if (exists $ac_config_files_location{$i} && $i ne $file)
4064 my $di = dirname $i;
4065 if ($di eq $relative_dir)
4069 # In the top-level Makefile we do not use $(top_builddir), because
4070 # we are already there, and since the targets are built without
4071 # a $(top_builddir), it helps BSD Make to match them with
4073 elsif ($relative_dir ne '.')
4075 $i = '$(top_builddir)/' . $i;
4080 msg ('error', $ac_config_files_location{$file},
4081 "required file `$i' not found")
4082 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4083 ($i) = prepend_srcdir ($i);
4084 push_dist_common ($i);
4093 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4094 # ------------------------------------------------------------------
4095 # Handle remaking and configure stuff.
4096 # We need the name of the input file, to do proper remaking rules.
4097 sub handle_configure ($$$@)
4099 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4101 prog_error 'empty @inputs'
4104 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4106 my $rel_makefile = basename $makefile;
4108 my $colon_infile = ':' . join (':', @inputs);
4109 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4110 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4111 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4112 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4113 @configure_deps, @aclocal_m4_deps,
4114 '$(top_srcdir)/' . $configure_ac);
4115 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4116 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4117 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4120 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4121 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4123 $output_rules .= file_contents
4125 new Automake::Location,
4126 MAKEFILE => $rel_makefile,
4127 'MAKEFILE-DEPS' => "@rewritten",
4128 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4129 'MAKEFILE-IN' => $rel_makefile_in,
4130 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4131 'MAKEFILE-IN-DEPS' => "@include_stack",
4132 'MAKEFILE-AM' => $rel_makefile_am,
4133 'AUTOMAKE-OPTIONS' => $automake_options,
4134 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4135 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4136 VERBOSE => verbose_flag ('GEN'));
4138 if ($relative_dir eq '.')
4140 &push_dist_common ('acconfig.h')
4144 # If we have a configure header, require it.
4146 my @distclean_config;
4147 foreach my $spec (@config_headers)
4150 # $CONFIG_H_PATH: config.h from top level.
4151 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4152 my $config_h_dir = dirname ($config_h_path);
4154 # If the header is in the current directory we want to build
4155 # the header here. Otherwise, if we're at the topmost
4156 # directory and the header's directory doesn't have a
4157 # Makefile, then we also want to build the header.
4158 if ($relative_dir eq $config_h_dir
4159 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4161 my ($cn_sans_dir, $stamp_dir);
4162 if ($relative_dir eq $config_h_dir)
4164 $cn_sans_dir = basename ($config_h_path);
4169 $cn_sans_dir = $config_h_path;
4170 if ($config_h_dir eq '.')
4176 $stamp_dir = $config_h_dir . '/';
4180 # This will also distribute all inputs.
4181 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4183 # Cannot define rebuild rules for filenames with shell variables.
4184 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4186 # Header defined in this directory.
4188 if (-f $config_h_path . '.top')
4190 push (@files, "$cn_sans_dir.top");
4192 if (-f $config_h_path . '.bot')
4194 push (@files, "$cn_sans_dir.bot");
4197 push_dist_common (@files);
4199 # For now, acconfig.h can only appear in the top srcdir.
4200 if (-f 'acconfig.h')
4202 push (@files, '$(top_srcdir)/acconfig.h');
4205 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4207 file_contents ('remake-hdr',
4208 new Automake::Location,
4210 CONFIG_H => $cn_sans_dir,
4211 CONFIG_HIN => $ins[0],
4212 CONFIG_H_DEPS => "@ins",
4213 CONFIG_H_PATH => $config_h_path,
4216 push @distclean_config, $cn_sans_dir, $stamp;
4220 $output_rules .= file_contents ('clean-hdr',
4221 new Automake::Location,
4222 FILES => "@distclean_config")
4223 if @distclean_config;
4225 # Distribute and define mkinstalldirs only if it is already present
4226 # in the package, for backward compatibility (some people may still
4227 # use $(mkinstalldirs)).
4228 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4231 # Use require_file so that any existing script gets updated
4232 # by --force-missing.
4233 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4234 define_variable ('mkinstalldirs',
4235 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4239 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4240 # at least one argument, and $(mkinstalldirs) used to work
4241 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4242 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4245 reject_var ('CONFIG_HEADER',
4246 "`CONFIG_HEADER' is an anachronism; now determined "
4247 . "automatically\nfrom `$configure_ac'");
4250 foreach my $spec (@config_headers)
4252 my ($out, @ins) = split_config_file_spec ($spec);
4253 # Generate CONFIG_HEADER define.
4254 if ($relative_dir eq dirname ($out))
4256 push @config_h, basename ($out);
4260 push @config_h, "\$(top_builddir)/$out";
4263 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4266 # Now look for other files in this directory which must be remade
4267 # by config.status, and generate rules for them.
4268 my @actual_other_files = ();
4269 # These get cleaned only in a VPATH build.
4270 my @actual_other_vpath_files = ();
4271 foreach my $lfile (@other_input_files)
4275 if ($lfile =~ /^([^:]*):(.*)$/)
4277 # This is the ":" syntax of AC_OUTPUT.
4279 @inputs = split (':', $2);
4285 @inputs = $file . '.in';
4288 # Automake files should not be stored in here, but in %MAKE_LIST.
4289 prog_error ("$lfile in \@other_input_files\n"
4290 . "\@other_input_files = (@other_input_files)")
4291 if -f $file . '.am';
4293 my $local = basename ($file);
4295 # We skip files that aren't in this directory. However, if
4296 # the file's directory does not have a Makefile, and we are
4297 # currently doing `.', then we create a rule to rebuild the
4298 # file in the subdir.
4299 my $fd = dirname ($file);
4300 if ($fd ne $relative_dir)
4302 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4312 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4314 # Cannot output rules for shell variables.
4315 next if (substitute_ac_subst_variables $local) =~ /\$/;
4318 my $cond = $ac_config_files_condition{$lfile};
4321 $condstr = $cond->subst_string;
4322 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4323 $ac_config_files_location{$file});
4325 $output_rules .= ($condstr . $local . ': '
4326 . '$(top_builddir)/config.status '
4327 . "@rewritten_inputs\n"
4329 . 'cd $(top_builddir) && '
4330 . '$(SHELL) ./config.status '
4331 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4334 push (@actual_other_files, $local);
4337 # For links we should clean destinations and distribute sources.
4338 foreach my $spec (@config_links)
4340 my ($link, $file) = split /:/, $spec;
4341 # Some people do AC_CONFIG_LINKS($computed). We only handle
4342 # the DEST:SRC form.
4344 my $where = $ac_config_files_location{$link};
4346 # Skip destinations that contain shell variables.
4347 if ((substitute_ac_subst_variables $link) !~ /\$/)
4349 # We skip links that aren't in this directory. However, if
4350 # the link's directory does not have a Makefile, and we are
4351 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4352 # in `.'s Makefile.in.
4353 my $local = basename ($link);
4354 my $fd = dirname ($link);
4355 if ($fd ne $relative_dir)
4357 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4368 push @actual_other_files, $local if $local;
4372 push @actual_other_vpath_files, $local if $local;
4376 # Do not process sources that contain shell variables.
4377 if ((substitute_ac_subst_variables $file) !~ /\$/)
4379 my $fd = dirname ($file);
4381 # We distribute files that are in this directory.
4382 # At the top-level (`.') we also distribute files whose
4383 # directory does not have a Makefile.
4384 if (($fd eq $relative_dir)
4385 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4387 # The following will distribute $file as a side-effect when
4388 # it is appropriate (i.e., when $file is not already an output).
4389 # We do not need the result, just the side-effect.
4390 rewrite_inputs_into_dependencies ($link, $file);
4395 # These files get removed by "make distclean".
4396 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4397 @actual_other_files);
4398 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4399 @actual_other_vpath_files);
4405 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4406 'oldinclude', 'pkginclude',
4410 next unless $_->[1] =~ /\..*$/;
4411 &saw_extension ($&);
4417 return if ! $seen_gettext || $relative_dir ne '.';
4419 my $subdirs = var 'SUBDIRS';
4423 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4427 # Perform some sanity checks to help users get the right setup.
4428 # We disable these tests when po/ doesn't exist in order not to disallow
4429 # unusual gettext setups.
4434 # | 1) If a package doesn't have a directory po/ at top level, it
4435 # | will likely have multiple po/ directories in subpackages.
4437 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4438 # | is used without 'external'. It is also useful to warn for the
4439 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4440 # | warnings apply only to the usual layout of packages, therefore
4441 # | they should both be disabled if no po/ directory is found at
4446 my @subdirs = $subdirs->value_as_list_recursive;
4448 msg_var ('syntax', $subdirs,
4449 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4450 if ! grep ($_ eq 'po', @subdirs);
4452 # intl/ is not required when AM_GNU_GETTEXT is called with the
4453 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4454 msg_var ('syntax', $subdirs,
4455 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4456 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4457 && ! grep ($_ eq 'intl', @subdirs));
4459 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4460 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4461 msg_var ('syntax', $subdirs,
4462 "`intl' should not be in SUBDIRS when "
4463 . "AM_GNU_GETTEXT([external]) is used")
4464 if ($seen_gettext_external && ! $seen_gettext_intl
4465 && grep ($_ eq 'intl', @subdirs));
4468 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4471 # Handle footer elements.
4474 reject_rule ('.SUFFIXES',
4475 "use variable `SUFFIXES', not target `.SUFFIXES'");
4477 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4478 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4479 # anything else, by sticking it right after the default: target.
4480 $output_header .= ".SUFFIXES:\n";
4481 my $suffixes = var 'SUFFIXES';
4482 my @suffixes = Automake::Rule::suffixes;
4483 if (@suffixes || $suffixes)
4485 # Make sure SUFFIXES has unique elements. Sort them to ensure
4486 # the output remains consistent. However, $(SUFFIXES) is
4487 # always at the start of the list, unsorted. This is done
4488 # because make will choose rules depending on the ordering of
4489 # suffixes, and this lets the user have some control. Push
4490 # actual suffixes, and not $(SUFFIXES). Some versions of make
4491 # do not like variable substitutions on the .SUFFIXES line.
4492 my @user_suffixes = ($suffixes
4493 ? $suffixes->value_as_list_recursive : ());
4495 my %suffixes = map { $_ => 1 } @suffixes;
4496 delete @suffixes{@user_suffixes};
4498 $output_header .= (".SUFFIXES: "
4499 . join (' ', @user_suffixes, sort keys %suffixes)
4503 $output_trailer .= file_contents ('footer', new Automake::Location);
4507 # Generate `make install' rules.
4508 sub handle_install ()
4510 $output_rules .= &file_contents
4512 new Automake::Location,
4513 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4514 ? (" \$(BUILT_SOURCES)\n"
4515 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4517 'installdirs-local' => (user_phony_rule 'installdirs-local'
4518 ? ' installdirs-local' : ''),
4519 am__installdirs => variable_value ('am__installdirs') || '');
4523 # Deal with all and all-am.
4526 my ($makefile) = @_;
4530 # Put this at the beginning for the sake of non-GNU makes. This
4531 # is still wrong if these makes can run parallel jobs. But it is
4533 unshift (@all, basename ($makefile));
4535 foreach my $spec (@config_headers)
4537 my ($out, @ins) = split_config_file_spec ($spec);
4538 push (@all, basename ($out))
4539 if dirname ($out) eq $relative_dir;
4542 # Install `all' hooks.
4543 push (@all, "all-local")
4544 if user_phony_rule "all-local";
4546 &pretty_print_rule ("all-am:", "\t\t", @all);
4547 &depend ('.PHONY', 'all-am', 'all');
4552 my @local_headers = ();
4553 push @local_headers, '$(BUILT_SOURCES)'
4554 if var ('BUILT_SOURCES');
4555 foreach my $spec (@config_headers)
4557 my ($out, @ins) = split_config_file_spec ($spec);
4558 push @local_headers, basename ($out)
4559 if dirname ($out) eq $relative_dir;
4564 # We need to make sure config.h is built before we recurse.
4565 # We also want to make sure that built sources are built
4566 # before any ordinary `all' targets are run. We can't do this
4567 # by changing the order of dependencies to the "all" because
4568 # that breaks when using parallel makes. Instead we handle
4569 # things explicitly.
4570 $output_all .= ("all: @local_headers"
4572 . '$(MAKE) $(AM_MAKEFLAGS) '
4573 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4575 depend ('.MAKE', 'all');
4579 $output_all .= "all: " . (var ('SUBDIRS')
4580 ? 'all-recursive' : 'all-am') . "\n\n";
4585 # &do_check_merge_target ()
4586 # -------------------------
4587 # Handle check merge target specially.
4588 sub do_check_merge_target ()
4590 # Include user-defined local form of target.
4591 push @check_tests, 'check-local'
4592 if user_phony_rule 'check-local';
4594 # In --cygnus mode, check doesn't depend on all.
4595 if (option 'cygnus')
4597 # Just run the local check rules.
4598 pretty_print_rule ('check-am:', "\t\t", @check);
4602 # The check target must depend on the local equivalent of
4603 # `all', to ensure all the primary targets are built. Then it
4604 # must build the local check rules.
4605 $output_rules .= "check-am: all-am\n";
4608 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4610 depend ('.MAKE', 'check-am');
4615 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4617 depend ('.MAKE', 'check-am');
4620 depend '.PHONY', 'check', 'check-am';
4621 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4622 $output_rules .= ("check: "
4623 . (var ('BUILT_SOURCES')
4624 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4626 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4628 depend ('.MAKE', 'check')
4629 if var ('BUILT_SOURCES');
4632 # handle_clean ($MAKEFILE)
4633 # ------------------------
4634 # Handle all 'clean' targets.
4635 sub handle_clean ($)
4637 my ($makefile) = @_;
4639 # Clean the files listed in user variables if they exist.
4640 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4641 if var ('MOSTLYCLEANFILES');
4642 $clean_files{'$(CLEANFILES)'} = CLEAN
4643 if var ('CLEANFILES');
4644 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4645 if var ('DISTCLEANFILES');
4646 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4647 if var ('MAINTAINERCLEANFILES');
4649 # Built sources are automatically removed by maintainer-clean.
4650 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4651 if var ('BUILT_SOURCES');
4653 # Compute a list of "rm"s to run for each target.
4654 my %rms = (MOSTLY_CLEAN, [],
4657 MAINTAINER_CLEAN, []);
4659 foreach my $file (keys %clean_files)
4661 my $when = $clean_files{$file};
4662 prog_error 'invalid entry in %clean_files'
4663 unless exists $rms{$when};
4665 my $rm = "rm -f $file";
4666 # If file is a variable, make sure when don't call `rm -f' without args.
4667 $rm ="test -z \"$file\" || $rm"
4668 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4670 push @{$rms{$when}}, "\t-$rm\n";
4673 $output_rules .= &file_contents
4675 new Automake::Location,
4676 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4677 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4678 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4679 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4680 MAKEFILE => basename $makefile,
4685 # &target_cmp ($A, $B)
4686 # --------------------
4687 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4688 # other `.TARGETS' be last.
4691 return 0 if $a eq $b;
4693 my $a1 = substr ($a, 0, 1);
4694 my $b1 = substr ($b, 0, 1);
4697 return -1 if $b1 eq '.';
4698 return 1 if $a1 eq '.';
4704 # &handle_factored_dependencies ()
4705 # --------------------------------
4706 # Handle everything related to gathered targets.
4707 sub handle_factored_dependencies
4710 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4711 'uninstall-exec-local', 'uninstall-exec-hook',
4712 'uninstall-dvi-local',
4713 'uninstall-html-local',
4714 'uninstall-info-local',
4715 'uninstall-pdf-local',
4716 'uninstall-ps-local')
4720 reject_rule ($utarg, "use `$x', not `$utarg'");
4723 reject_rule ('install-local',
4724 "use `install-data-local' or `install-exec-local', "
4725 . "not `install-local'");
4727 reject_rule ('install-hook',
4728 "use `install-data-hook' or `install-exec-hook', "
4729 . "not `install-hook'");
4731 # Install the -local hooks.
4732 foreach (keys %dependencies)
4734 # Hooks are installed on the -am targets.
4736 depend ("$_-am", "$_-local")
4737 if user_phony_rule "$_-local";
4740 # Install the -hook hooks.
4741 # FIXME: Why not be as liberal as we are with -local hooks?
4742 foreach ('install-exec', 'install-data', 'uninstall')
4744 if (user_phony_rule "$_-hook")
4746 depend ('.MAKE', "$_-am");
4747 register_action("$_-am",
4748 ("\t\@\$(NORMAL_INSTALL)\n"
4749 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4753 # All the required targets are phony.
4754 depend ('.PHONY', keys %required_targets);
4756 # Actually output gathered targets.
4757 foreach (sort target_cmp keys %dependencies)
4759 # If there is nothing about this guy, skip it.
4761 unless (@{$dependencies{$_}}
4763 || $required_targets{$_});
4765 # Define gathered targets in undefined conditions.
4766 # FIXME: Right now we must handle .PHONY as an exception,
4767 # because people write things like
4768 # .PHONY: myphonytarget
4769 # to append dependencies. This would not work if Automake
4770 # refrained from defining its own .PHONY target as it does
4771 # with other overridden targets.
4772 # Likewise for `.MAKE'.
4773 my @undefined_conds = (TRUE,);
4774 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4777 Automake::Rule::define ($_, 'internal',
4778 RULE_AUTOMAKE, TRUE, INTERNAL);
4780 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4781 foreach my $cond (@undefined_conds)
4783 my $condstr = $cond->subst_string;
4784 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4785 $output_rules .= $actions{$_} if defined $actions{$_};
4786 $output_rules .= "\n";
4792 # &handle_tests_dejagnu ()
4793 # ------------------------
4794 sub handle_tests_dejagnu
4796 push (@check_tests, 'check-DEJAGNU');
4797 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4800 sub handle_per_suffix_test
4802 my ($test_suffix, %transform) = @_;
4803 my ($pfx, $generic, $parallel_tests_option, $am_exeext);
4804 prog_error ("called with 'parallel-tests' option not set")
4805 unless $parallel_tests_option = option 'parallel-tests';
4806 if ($test_suffix eq '')
4810 $am_exeext = 'FALSE';
4814 prog_error ("test suffix `$test_suffix' lacks leading dot")
4815 unless $test_suffix =~ m/^\.(.*)/;
4816 $pfx = uc ($1) . '_';
4818 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4821 # The "test driver" program, deputed to handle tests protocol used by
4822 # test scripts. By default, it's assumed that no protocol is used,
4823 # so we fall back to the old "parallel-tests" behaviour, implemented
4824 # by the `test-driver' auxiliary script.
4825 if (! var "${pfx}LOG_DRIVER")
4827 require_conf_file ($parallel_tests_option->{position}, FOREIGN,
4829 define_variable ("${pfx}LOG_DRIVER",
4830 "\$(SHELL) $am_config_aux_dir/test-driver",
4833 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4834 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4835 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4836 my $compile = "${pfx}LOG_COMPILE";
4837 define_variable ($compile,
4838 '$(' . $pfx . 'LOG_COMPILER)'
4839 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4840 . ' $(' . $pfx . 'LOG_FLAGS)',
4842 $output_rules .= file_contents ('check2', new Automake::Location,
4843 GENERIC => $generic,
4845 DRIVER_FLAGS => $driver_flags,
4846 COMPILE => '$(' . $compile . ')',
4847 EXT => $test_suffix,
4848 am__EXEEXT => $am_exeext,
4852 # is_valid_test_extension ($EXT)
4853 # ------------------------------
4854 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4856 sub is_valid_test_extension ($)
4860 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4862 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4866 # Handle TESTS variable and other checks.
4869 if (option 'dejagnu')
4871 &handle_tests_dejagnu;
4875 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4877 reject_var ($c, "`$c' defined but `dejagnu' not in "
4878 . "`AUTOMAKE_OPTIONS'");
4884 push (@check_tests, 'check-TESTS');
4885 my $check_deps = "@check";
4886 $output_rules .= &file_contents ('check', new Automake::Location,
4887 COLOR => !! option 'color-tests',
4888 PARALLEL_TESTS => !! option 'parallel-tests',
4889 CHECK_DEPS => $check_deps);
4891 # Tests that are known programs should have $(EXEEXT) appended.
4892 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4893 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4894 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4895 if (var ('XFAIL_TESTS'));
4897 if (my $parallel_tests = option 'parallel-tests')
4899 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4902 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4905 $at_exeext = subst ('EXEEXT');
4906 $suff = $at_exeext . ' ' . $suff;
4908 if (! var 'TEST_EXTENSIONS')
4910 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4912 my $var = var 'TEST_EXTENSIONS';
4913 # Currently, we are not able to deal with conditional contents
4914 # in TEST_EXTENSIONS.
4915 if ($var->has_conditional_contents)
4917 msg_var 'unsupported', $var,
4918 "`TEST_EXTENSIONS' cannot have conditional contents";
4920 my @test_suffixes = $var->value_as_list_recursive;
4921 if ((my @invalid_test_suffixes =
4922 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4924 error $var->rdef (TRUE)->location,
4925 "invalid test extensions: @invalid_test_suffixes";
4927 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4930 unshift (@test_suffixes, $at_exeext)
4931 unless $test_suffixes[0] eq $at_exeext;
4933 unshift (@test_suffixes, '');
4935 transform_variable_recursively
4936 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4938 my ($subvar, $val, $cond, $full_cond) = @_;
4941 if $val =~ /^\@.*\@$/;
4942 $obj =~ s/\$\(EXEEXT\)$//o;
4944 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4946 msg ('error', $subvar->rdef ($cond)->location,
4947 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
4950 foreach my $test_suffix (@test_suffixes)
4953 if $test_suffix eq $at_exeext || $test_suffix eq '';
4954 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4955 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4959 handle_per_suffix_test ('',
4969 my $last_suffix = $test_suffixes[$#test_suffixes];
4971 foreach my $test_suffix (@test_suffixes)
4973 if ($test_suffix eq $last_suffix)
4979 $cur = 'am__test_logs' . $nhelper;
4981 define_variable ($cur,
4982 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4986 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4988 handle_per_suffix_test ($test_suffix,
4994 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4995 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4996 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5001 # Handle Emacs Lisp.
5002 sub handle_emacs_lisp
5004 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5007 return if ! @elfiles;
5009 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5010 map { $_->[1] } @elfiles);
5011 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5012 '$(am__ELFILES:.el=.elc)');
5013 # This one can be overridden by users.
5014 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5016 push @all, '$(ELCFILES)';
5018 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5019 'EMACS', 'lispdir');
5020 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5021 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5027 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5029 return if ! @pyfiles;
5031 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5032 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5033 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5039 my @sourcelist = &am_install_var ('-candist',
5042 return if ! @sourcelist;
5044 my @prefixes = am_primary_prefixes ('JAVA', 1,
5048 my @java_sources = ();
5049 foreach my $prefix (@prefixes)
5051 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5054 if $curs eq 'EXTRA';
5056 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5060 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5061 unless $curs eq $dir;
5067 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5070 if ($dir eq 'check')
5072 push (@check, "class$dir.stamp");
5076 push (@all, "class$dir.stamp");
5081 # Handle some of the minor options.
5082 sub handle_minor_options
5084 if (option 'readme-alpha')
5086 if ($relative_dir eq '.')
5088 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5090 msg ('error-gnits', $package_version_location,
5091 "version `$package_version' doesn't follow " .
5094 if (defined $1 && -f 'README-alpha')
5096 # This means we have an alpha release. See
5097 # GNITS_VERSION_PATTERN for details.
5098 push_dist_common ('README-alpha');
5104 ################################################################
5106 # ($OUTPUT, @INPUTS)
5107 # &split_config_file_spec ($SPEC)
5108 # -------------------------------
5109 # Decode the Autoconf syntax for config files (files, headers, links
5111 sub split_config_file_spec ($)
5114 my ($output, @inputs) = split (/:/, $spec);
5116 push @inputs, "$output.in"
5119 return ($output, @inputs);
5123 # locate_am (@POSSIBLE_SOURCES)
5124 # -----------------------------
5125 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5126 # This functions returns the first *.in file for which a *.am exists.
5127 # It returns undef otherwise.
5132 foreach my $file (@rest)
5134 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5145 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5146 # ---------------------------------------------------
5147 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5149 sub scan_autoconf_config_files ($$)
5151 my ($where, $config_files) = @_;
5153 # Look at potential Makefile.am's.
5154 foreach (split ' ', $config_files)
5156 # Must skip empty string for Perl 4.
5157 next if $_ eq "\\" || $_ eq '';
5159 # Handle $local:$input syntax.
5160 my ($local, @rest) = split (/:/);
5161 @rest = ("$local.in",) unless @rest;
5162 # Keep in sync with 'conffile-leading-dot.test'.
5163 msg ('unsupported', $where,
5164 "omit leading './' from config file names such as '$local';"
5165 . "\nremake rules might be subtly broken otherwise")
5166 if ($local =~ /^\.\//);
5167 my $input = locate_am @rest;
5170 # We have a file that automake should generate.
5171 $make_list{$input} = join (':', ($local, @rest));
5175 # We have a file that automake should cause to be
5176 # rebuilt, but shouldn't generate itself.
5177 push (@other_input_files, $_);
5179 $ac_config_files_location{$local} = $where;
5180 $ac_config_files_condition{$local} =
5181 new Automake::Condition (@cond_stack)
5187 # &scan_autoconf_traces ($FILENAME)
5188 # ---------------------------------
5189 sub scan_autoconf_traces ($)
5191 my ($filename) = @_;
5193 # Macros to trace, with their minimal number of arguments.
5195 # IMPORTANT: If you add a macro here, you should also add this macro
5196 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5198 AC_CANONICAL_BUILD => 0,
5199 AC_CANONICAL_HOST => 0,
5200 AC_CANONICAL_TARGET => 0,
5201 AC_CONFIG_AUX_DIR => 1,
5202 AC_CONFIG_FILES => 1,
5203 AC_CONFIG_HEADERS => 1,
5204 AC_CONFIG_LIBOBJ_DIR => 1,
5205 AC_CONFIG_LINKS => 1,
5209 AC_REQUIRE_AUX_FILE => 1,
5210 AC_SUBST_TRACE => 1,
5211 AM_AUTOMAKE_VERSION => 1,
5212 AM_CONDITIONAL => 2,
5213 AM_GNU_GETTEXT => 0,
5214 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5215 AM_INIT_AUTOMAKE => 0,
5216 AM_MAINTAINER_MODE => 0,
5218 AM_PROG_CC_C_O => 0,
5219 AM_SILENT_RULES => 0,
5220 _AM_SUBST_NOTMAKE => 1,
5223 _AM_COND_ENDIF => 1,
5224 LT_SUPPORTED_TAG => 1,
5225 _LT_AC_TAGCONFIG => 0,
5231 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5233 # Use a separator unlikely to be used, not `:', the default, which
5234 # has a precise meaning for AC_CONFIG_FILES and so on.
5235 $traces .= join (' ',
5236 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5239 my $tracefh = new Automake::XFile ("$traces $filename |");
5240 verb "reading $traces";
5245 while ($_ = $tracefh->getline)
5248 my ($here, $depth, @args) = split (/::/);
5249 $where = new Automake::Location $here;
5250 my $macro = $args[0];
5252 prog_error ("unrequested trace `$macro'")
5253 unless exists $traced{$macro};
5255 # Skip and diagnose malformed calls.
5256 if ($#args < $traced{$macro})
5258 msg ('syntax', $where, "not enough arguments for $macro");
5262 # Alphabetical ordering please.
5263 if ($macro eq 'AC_CANONICAL_BUILD')
5265 if ($seen_canonical <= AC_CANONICAL_BUILD)
5267 $seen_canonical = AC_CANONICAL_BUILD;
5268 $canonical_location = $where;
5271 elsif ($macro eq 'AC_CANONICAL_HOST')
5273 if ($seen_canonical <= AC_CANONICAL_HOST)
5275 $seen_canonical = AC_CANONICAL_HOST;
5276 $canonical_location = $where;
5279 elsif ($macro eq 'AC_CANONICAL_TARGET')
5281 $seen_canonical = AC_CANONICAL_TARGET;
5282 $canonical_location = $where;
5284 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5286 if ($seen_init_automake)
5288 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5289 . "AM_INIT_AUTOMAKE ...", partial => 1);
5290 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5292 $config_aux_dir = $args[1];
5293 $config_aux_dir_set_in_configure_ac = 1;
5294 check_directory ($config_aux_dir, $where);
5296 elsif ($macro eq 'AC_CONFIG_FILES')
5298 # Look at potential Makefile.am's.
5299 scan_autoconf_config_files ($where, $args[1]);
5301 elsif ($macro eq 'AC_CONFIG_HEADERS')
5303 foreach my $spec (split (' ', $args[1]))
5305 my ($dest, @src) = split (':', $spec);
5306 $ac_config_files_location{$dest} = $where;
5307 push @config_headers, $spec;
5310 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5312 $config_libobj_dir = $args[1];
5313 check_directory ($config_libobj_dir, $where);
5315 elsif ($macro eq 'AC_CONFIG_LINKS')
5317 foreach my $spec (split (' ', $args[1]))
5319 my ($dest, $src) = split (':', $spec);
5320 $ac_config_files_location{$dest} = $where;
5321 push @config_links, $spec;
5324 elsif ($macro eq 'AC_FC_SRCEXT')
5326 my $suffix = $args[1];
5327 # These flags are used as %SOURCEFLAG% in depend2.am,
5328 # where the trailing space is important.
5329 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5330 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5332 elsif ($macro eq 'AC_INIT')
5334 if (defined $args[2])
5336 $package_version = $args[2];
5337 $package_version_location = $where;
5340 elsif ($macro eq 'AC_LIBSOURCE')
5342 $libsources{$args[1]} = $here;
5344 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5346 # Only remember the first time a file is required.
5347 $required_aux_file{$args[1]} = $where
5348 unless exists $required_aux_file{$args[1]};
5350 elsif ($macro eq 'AC_SUBST_TRACE')
5352 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5353 # AC_SUBST(5), then too bad.
5354 $configure_vars{$args[1]} = $where
5355 if $args[1] =~ /^\w+$/;
5357 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5360 "version mismatch. This is Automake $VERSION,\n" .
5361 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5362 "comes from Automake $args[1]. You should recreate\n" .
5363 "aclocal.m4 with aclocal and run automake again.\n",
5364 # $? = 63 is used to indicate version mismatch to missing.
5366 if $VERSION ne $args[1];
5368 $seen_automake_version = 1;
5370 elsif ($macro eq 'AM_CONDITIONAL')
5372 $configure_cond{$args[1]} = $where;
5374 elsif ($macro eq 'AM_GNU_GETTEXT')
5376 $seen_gettext = $where;
5377 $ac_gettext_location = $where;
5378 $seen_gettext_external = grep ($_ eq 'external', @args);
5380 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5382 $seen_gettext_intl = $where;
5384 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5386 $seen_init_automake = $where;
5387 if (defined $args[2])
5389 $package_version = $args[2];
5390 $package_version_location = $where;
5392 elsif (defined $args[1])
5394 my @opts = split (' ', $args[1]);
5395 @opts = map { { option => $_, where => $where } } @opts;
5396 exit $exit_code if process_global_option_list (@opts);
5399 elsif ($macro eq 'AM_MAINTAINER_MODE')
5401 $seen_maint_mode = $where;
5403 elsif ($macro eq 'AM_PROG_AR')
5407 elsif ($macro eq 'AM_PROG_CC_C_O')
5409 $seen_cc_c_o = $where;
5411 elsif ($macro eq 'AM_SILENT_RULES')
5413 set_global_option ('silent-rules', $where);
5415 elsif ($macro eq '_AM_COND_IF')
5417 cond_stack_if ('', $args[1], $where);
5418 error ($where, "missing m4 quoting, macro depth $depth")
5421 elsif ($macro eq '_AM_COND_ELSE')
5423 cond_stack_else ('!', $args[1], $where);
5424 error ($where, "missing m4 quoting, macro depth $depth")
5427 elsif ($macro eq '_AM_COND_ENDIF')
5429 cond_stack_endif (undef, undef, $where);
5430 error ($where, "missing m4 quoting, macro depth $depth")
5433 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5435 $ignored_configure_vars{$args[1]} = $where;
5437 elsif ($macro eq 'm4_include'
5438 || $macro eq 'm4_sinclude'
5439 || $macro eq 'sinclude')
5441 # Skip missing `sinclude'd files.
5442 next if $macro ne 'm4_include' && ! -f $args[1];
5444 # Some modified versions of Autoconf don't use
5445 # frozen files. Consequently it's possible that we see all
5446 # m4_include's performed during Autoconf's startup.
5447 # Obviously we don't want to distribute Autoconf's files
5448 # so we skip absolute filenames here.
5449 push @configure_deps, '$(top_srcdir)/' . $args[1]
5450 unless $here =~ m,^(?:\w:)?[\\/],;
5451 # Keep track of the greatest timestamp.
5454 my $mtime = mtime $args[1];
5455 $configure_deps_greatest_timestamp = $mtime
5456 if $mtime > $configure_deps_greatest_timestamp;
5459 elsif ($macro eq 'LT_SUPPORTED_TAG')
5461 $libtool_tags{$args[1]} = 1;
5462 $libtool_new_api = 1;
5464 elsif ($macro eq '_LT_AC_TAGCONFIG')
5466 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5467 # We use it to detect whether tags are supported. Our
5468 # preferred interface is LT_SUPPORTED_TAG, but it was
5469 # introduced in Libtool 1.6.
5470 if (0 == keys %libtool_tags)
5472 # Hardcode the tags supported by Libtool 1.5.
5473 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5478 error ($where, "condition stack not properly closed")
5485 # &scan_autoconf_files ()
5486 # -----------------------
5487 # Check whether we use `configure.ac' or `configure.in'.
5488 # Scan it (and possibly `aclocal.m4') for interesting things.
5489 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5490 sub scan_autoconf_files ()
5492 # Reinitialize libsources here. This isn't really necessary,
5493 # since we currently assume there is only one configure.ac. But
5494 # that won't always be the case.
5497 # Keep track of the youngest configure dependency.
5498 $configure_deps_greatest_timestamp = mtime $configure_ac;
5499 if (-e 'aclocal.m4')
5501 my $mtime = mtime 'aclocal.m4';
5502 $configure_deps_greatest_timestamp = $mtime
5503 if $mtime > $configure_deps_greatest_timestamp;
5506 scan_autoconf_traces ($configure_ac);
5508 @configure_input_files = sort keys %make_list;
5509 # Set input and output files if not specified by user.
5512 @input_files = @configure_input_files;
5513 %output_files = %make_list;
5517 if (! $seen_init_automake)
5519 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5520 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5521 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5522 . "and that aclocal.m4 was recently regenerated "
5523 . "(using aclocal)");
5527 if (! $seen_automake_version)
5529 if (-f 'aclocal.m4')
5531 error ($seen_init_automake,
5532 "your implementation of AM_INIT_AUTOMAKE comes from " .
5533 "an\nold Automake version. You should recreate " .
5534 "aclocal.m4\nwith aclocal and run automake again",
5535 # $? = 63 is used to indicate version mismatch to missing.
5540 error ($seen_init_automake,
5541 "no proper implementation of AM_INIT_AUTOMAKE was " .
5542 "found,\nprobably because aclocal.m4 is missing.\n" .
5543 "You should run aclocal to create this file, then\n" .
5544 "run automake again");
5551 # Look for some files we need. Always check for these. This
5552 # check must be done for every run, even those where we are only
5553 # looking at a subdir Makefile. We must set relative_dir for
5554 # push_required_file to work.
5555 # Sort the files for stable verbose output.
5556 $relative_dir = '.';
5557 foreach my $file (sort keys %required_aux_file)
5559 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5561 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5562 if -f $config_aux_dir . '/install.sh';
5564 # Preserve dist_common for later.
5565 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5569 ################################################################
5571 # Set up for Cygnus mode.
5574 my $cygnus = option 'cygnus';
5575 return unless $cygnus;
5577 set_strictness ('foreign');
5578 set_option ('no-installinfo', $cygnus);
5579 set_option ('no-dependencies', $cygnus);
5580 set_option ('no-dist', $cygnus);
5582 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5583 if !$seen_maint_mode;
5586 # Do any extra checking for GNU standards.
5587 sub check_gnu_standards
5589 if ($relative_dir eq '.')
5591 # In top level (or only) directory.
5592 require_file ("$am_file.am", GNU,
5593 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5595 # Accept one of these three licenses; default to COPYING.
5596 # Make sure we do not overwrite an existing license.
5598 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5606 require_file ("$am_file.am", GNU, 'COPYING')
5610 for my $opt ('no-installman', 'no-installinfo')
5612 msg ('error-gnu', option $opt,
5613 "option `$opt' disallowed by GNU standards")
5618 # Do any extra checking for GNITS standards.
5619 sub check_gnits_standards
5621 if ($relative_dir eq '.')
5623 # In top level (or only) directory.
5624 require_file ("$am_file.am", GNITS, 'THANKS');
5628 ################################################################
5630 # Functions to handle files of each language.
5632 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5633 # simple formula: Return value is LANG_SUBDIR if the resulting object
5634 # file should be in a subdir if the source file is, LANG_PROCESS if
5635 # file is to be dealt with, LANG_IGNORE otherwise.
5637 # Much of the actual processing is handled in
5638 # handle_single_transform. These functions exist so that
5639 # auxiliary information can be recorded for a later cleanup pass.
5640 # Note that the calls to these functions are computed, so don't bother
5641 # searching for their precise names in the source.
5643 # This is just a convenience function that can be used to determine
5644 # when a subdir object should be used.
5647 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5650 # Rewrite a single C source file.
5653 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5655 my $r = LANG_PROCESS;
5656 if (option 'subdir-objects')
5659 if ($directory && $directory ne '.')
5661 $base = $directory . '/' . $base;
5663 # libtool is always able to put the object at the proper place,
5664 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5665 msg_var ('portability', $var,
5666 "compiling `$base.c' in subdir requires "
5667 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5668 uniq_scope => US_GLOBAL,
5669 uniq_part => 'AM_PROG_CC_C_O subdir')
5670 unless $seen_cc_c_o || $obj eq '.lo';
5675 && $have_per_exec_flags
5676 && ! option 'subdir-objects'
5679 msg_var ('portability',
5680 $var, "compiling `$base.c' with per-target flags requires "
5681 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5682 uniq_scope => US_GLOBAL,
5683 uniq_part => 'AM_PROG_CC_C_O per-target')
5689 # Rewrite a single C++ source file.
5690 sub lang_cxx_rewrite
5692 return &lang_sub_obj;
5695 # Rewrite a single header file.
5696 sub lang_header_rewrite
5698 # Header files are simply ignored.
5702 # Rewrite a single Vala source file.
5703 sub lang_vala_rewrite
5705 my ($directory, $base, $ext) = @_;
5707 (my $newext = $ext) =~ s/vala$/c/;
5708 return (LANG_SUBDIR, $newext);
5711 # Rewrite a single yacc file.
5712 sub lang_yacc_rewrite
5714 my ($directory, $base, $ext) = @_;
5716 my $r = &lang_sub_obj;
5717 (my $newext = $ext) =~ tr/y/c/;
5718 return ($r, $newext);
5721 # Rewrite a single yacc++ file.
5722 sub lang_yaccxx_rewrite
5724 my ($directory, $base, $ext) = @_;
5726 my $r = &lang_sub_obj;
5727 (my $newext = $ext) =~ tr/y/c/;
5728 return ($r, $newext);
5731 # Rewrite a single lex file.
5732 sub lang_lex_rewrite
5734 my ($directory, $base, $ext) = @_;
5736 my $r = &lang_sub_obj;
5737 (my $newext = $ext) =~ tr/l/c/;
5738 return ($r, $newext);
5741 # Rewrite a single lex++ file.
5742 sub lang_lexxx_rewrite
5744 my ($directory, $base, $ext) = @_;
5746 my $r = &lang_sub_obj;
5747 (my $newext = $ext) =~ tr/l/c/;
5748 return ($r, $newext);
5751 # Rewrite a single assembly file.
5752 sub lang_asm_rewrite
5754 return &lang_sub_obj;
5757 # Rewrite a single preprocessed assembly file.
5758 sub lang_cppasm_rewrite
5760 return &lang_sub_obj;
5763 # Rewrite a single Fortran 77 file.
5764 sub lang_f77_rewrite
5766 return &lang_sub_obj;
5769 # Rewrite a single Fortran file.
5772 return &lang_sub_obj;
5775 # Rewrite a single preprocessed Fortran file.
5776 sub lang_ppfc_rewrite
5778 return &lang_sub_obj;
5781 # Rewrite a single preprocessed Fortran 77 file.
5782 sub lang_ppf77_rewrite
5784 return &lang_sub_obj;
5787 # Rewrite a single ratfor file.
5788 sub lang_ratfor_rewrite
5790 return &lang_sub_obj;
5793 # Rewrite a single Objective C file.
5794 sub lang_objc_rewrite
5796 return &lang_sub_obj;
5799 # Rewrite a single Unified Parallel C file.
5800 sub lang_upc_rewrite
5802 return &lang_sub_obj;
5805 # Rewrite a single Java file.
5806 sub lang_java_rewrite
5811 # The lang_X_finish functions are called after all source file
5812 # processing is done. Each should handle defining rules for the
5813 # language, etc. A finish function is only called if a source file of
5814 # the appropriate type has been seen.
5816 sub lang_vala_finish_target ($$)
5818 my ($self, $name) = @_;
5820 my $derived = canonicalize ($name);
5821 my $varname = $derived . '_SOURCES';
5822 my $var = var ($varname);
5826 foreach my $file ($var->value_as_list_recursive)
5828 $output_rules .= "\$(srcdir)/$file: \$(srcdir)/${derived}_vala.stamp\n"
5829 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5830 . "\t\@if test -f \$@; then :; else \\\n"
5831 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5833 if $file =~ s/(.*)\.vala$/$1.c/;
5837 # Add rebuild rules for generated header and vapi files
5838 my $flags = var ($derived . '_VALAFLAGS');
5842 foreach my $flag ($flags->value_as_list_recursive)
5844 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5845 '--vapi', '--internal-vapi', '--gir')))
5847 my $headerfile = $flag;
5848 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5849 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5850 . "\t\@if test -f \$@; then :; else \\\n"
5851 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5854 # valac is not used when building from dist tarballs
5855 # distribute the generated files
5856 push_dist_common ($headerfile);
5857 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5863 my $compile = $self->compile;
5865 # Rewrite each occurrence of `AM_VALAFLAGS' in the compile
5866 # rule into `${derived}_VALAFLAGS' if it exists.
5867 my $val = "${derived}_VALAFLAGS";
5868 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5871 # VALAFLAGS is a user variable (per GNU Standards),
5872 # it should not be overridden in the Makefile...
5873 check_user_variables ['VALAFLAGS'];
5875 my $dirname = dirname ($name);
5877 # Only generate C code, do not run C compiler
5880 my $verbose = verbose_flag ('VALAC');
5881 my $silent = silent_flag ();
5884 "\$(srcdir)/${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
5885 # Since the C files generated from the vala sources depend on the
5886 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5887 # those of the C files generated by the valac invocation below (this is
5888 # especially important on systems with sub-second timestamp resolution).
5889 # Thus we need to create the stamp file *before* invoking valac, and to
5890 # move it to its final location only after valac has been invoked.
5891 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5892 "\t${verbose}\$(am__cd) \$(srcdir) && ${compile} \$(${derived}_SOURCES)\n".
5893 "\t${silent}mv -f \$\@-t \$\@\n";
5895 push_dist_common ("${derived}_vala.stamp");
5897 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
5900 # Add output rules to invoke valac and create stamp file as a witness
5901 # to handle multiple outputs. This function is called after all source
5902 # file processing is done.
5903 sub lang_vala_finish
5907 foreach my $prog (keys %known_programs)
5909 lang_vala_finish_target ($self, $prog);
5912 while (my ($name) = each %known_libraries)
5914 lang_vala_finish_target ($self, $name);
5918 # The built .c files should be cleaned only on maintainer-clean
5919 # as the .c files are distributed. This function is called for each
5920 # .vala source file.
5921 sub lang_vala_target_hook
5923 my ($self, $aggregate, $output, $input, %transform) = @_;
5925 $clean_files{$output} = MAINTAINER_CLEAN;
5928 # This is a yacc helper which is called whenever we have decided to
5929 # compile a yacc file.
5930 sub lang_yacc_target_hook
5932 my ($self, $aggregate, $output, $input, %transform) = @_;
5934 # If some relevant *YFLAGS variable contains the `-d' flag, we'll
5935 # have to to generate special code.
5936 my $yflags_contains_minus_d = 0;
5938 foreach my $pfx ("", "${aggregate}_")
5940 my $yflagsvar = var ("${pfx}YFLAGS");
5941 next unless $yflagsvar;
5942 # We cannot work reliably with conditionally-defined YFLAGS.
5943 if ($yflagsvar->has_conditional_contents)
5945 msg_var ('unsupported', $yflagsvar,
5946 "`${pfx}YFLAGS' cannot have conditional contents");
5950 $yflags_contains_minus_d = 1
5951 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5955 if ($yflags_contains_minus_d)
5957 # Found a `-d' that applies to the compilation of this file.
5958 # Add a dependency for the generated header file, and arrange
5959 # for that file to be included in the distribution.
5961 # The extension of the output file (e.g., `.c' or `.cxx').
5962 # We'll need it to compute the name of the generated header file.
5963 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5965 # We know that a yacc input should be turned into either a C or
5966 # C++ output file. We depend on this fact (here and in yacc.am),
5967 # so check that it really holds.
5968 my $lang = $languages{$extension_map{$output_ext}};
5969 prog_error "invalid output name `$output' for yacc file `$input'"
5970 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5972 (my $header_ext = $output_ext) =~ s/c/h/g;
5973 # Quote $output_ext in the regexp, so that dots in it are taken
5974 # as literal dots, not as metacharacters.
5975 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5977 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5978 RULE_AUTOMAKE, TRUE,
5981 my $condstr = $cond->subst_string;
5983 "$condstr${header}: $output\n"
5984 # Recover from removal of $header
5985 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5986 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5988 # Distribute the generated file, unless its .y source was
5989 # listed in a nodist_ variable. (&handle_source_transform
5990 # will set DIST_SOURCE.)
5991 &push_dist_common ($header)
5992 if $transform{'DIST_SOURCE'};
5994 # The GNU rules say that yacc/lex output files should be removed
5995 # by maintainer-clean. However, if the files are not distributed,
5996 # then we want to remove them with "make clean"; otherwise,
5997 # "make distcheck" will fail.
5998 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
6000 # See the comment above for $HEADER.
6001 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
6004 # This is a lex helper which is called whenever we have decided to
6005 # compile a lex file.
6006 sub lang_lex_target_hook
6008 my ($self, $aggregate, $output, $input, %transform) = @_;
6009 # The GNU rules say that yacc/lex output files should be removed
6010 # by maintainer-clean. However, if the files are not distributed,
6011 # then we want to remove them with "make clean"; otherwise,
6012 # "make distcheck" will fail.
6013 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
6016 # This is a helper for both lex and yacc.
6017 sub yacc_lex_finish_helper
6019 return if defined $language_scratch{'lex-yacc-done'};
6020 $language_scratch{'lex-yacc-done'} = 1;
6022 # FIXME: for now, no line number.
6023 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6024 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6027 sub lang_yacc_finish
6029 return if defined $language_scratch{'yacc-done'};
6030 $language_scratch{'yacc-done'} = 1;
6032 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6034 yacc_lex_finish_helper;
6040 return if defined $language_scratch{'lex-done'};
6041 $language_scratch{'lex-done'} = 1;
6043 yacc_lex_finish_helper;
6047 # Given a hash table of linker names, pick the name that has the most
6048 # precedence. This is lame, but something has to have global
6049 # knowledge in order to eliminate the conflict. Add more linkers as
6055 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6057 return $l if defined $linkers{$l};
6062 # Called to indicate that an extension was used.
6066 if (! defined $extension_seen{$ext})
6068 $extension_seen{$ext} = 1;
6072 ++$extension_seen{$ext};
6076 # Return the number of files seen for a given language. Knows about
6077 # special cases we care about. FIXME: this is hideous. We need
6078 # something that involves real language objects. For instance yacc
6079 # and yaccxx could both derive from a common yacc class which would
6080 # know about the strange ylwrap requirement. (Or better yet we could
6081 # just not support legacy yacc!)
6082 sub count_files_for_language
6087 if ($name eq 'yacc' || $name eq 'yaccxx')
6089 @names = ('yacc', 'yaccxx');
6091 elsif ($name eq 'lex' || $name eq 'lexxx')
6093 @names = ('lex', 'lexxx');
6101 foreach $name (@names)
6103 my $lang = $languages{$name};
6104 foreach my $ext (@{$lang->extensions})
6106 $r += $extension_seen{$ext}
6107 if defined $extension_seen{$ext};
6114 # Called to ask whether source files have been seen . If HEADERS is 1,
6115 # headers can be included.
6120 # count all the sources
6122 foreach my $val (values %extension_seen)
6129 $count -= count_files_for_language ('header');
6136 # register_language (%ATTRIBUTE)
6137 # ------------------------------
6138 # Register a single language.
6139 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6140 sub register_language (%)
6145 $option{'autodep'} = 'no'
6146 unless defined $option{'autodep'};
6147 $option{'linker'} = ''
6148 unless defined $option{'linker'};
6149 $option{'flags'} = []
6150 unless defined $option{'flags'};
6151 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6152 unless defined $option{'output_extensions'};
6153 $option{'nodist_specific'} = 0
6154 unless defined $option{'nodist_specific'};
6156 my $lang = new Language (%option);
6159 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6160 $languages{$lang->name} = $lang;
6161 my $link = $lang->linker;
6164 if (exists $link_languages{$link})
6166 prog_error ("`$link' has different definitions in "
6167 . $lang->name . " and " . $link_languages{$link}->name)
6168 if $lang->link ne $link_languages{$link}->link;
6172 $link_languages{$link} = $lang;
6176 # Update the pattern of known extensions.
6177 accept_extensions (@{$lang->extensions});
6179 # Upate the $suffix_rule map.
6180 foreach my $suffix (@{$lang->extensions})
6182 foreach my $dest (&{$lang->output_extensions} ($suffix))
6184 register_suffix_rule (INTERNAL, $suffix, $dest);
6189 # derive_suffix ($EXT, $OBJ)
6190 # --------------------------
6191 # This function is used to find a path from a user-specified suffix $EXT
6192 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6193 sub derive_suffix ($$)
6195 my ($source_ext, $obj) = @_;
6197 while (! $extension_map{$source_ext}
6198 && $source_ext ne $obj
6199 && exists $suffix_rules->{$source_ext}
6200 && exists $suffix_rules->{$source_ext}{$obj})
6202 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6209 ################################################################
6211 # Pretty-print something and append to output_rules.
6212 sub pretty_print_rule
6214 $output_rules .= &makefile_wrap (@_);
6218 ################################################################
6221 ## -------------------------------- ##
6222 ## Handling the conditional stack. ##
6223 ## -------------------------------- ##
6227 # make_conditional_string ($NEGATE, $COND)
6228 # ----------------------------------------
6229 sub make_conditional_string ($$)
6231 my ($negate, $cond) = @_;
6232 $cond = "${cond}_TRUE"
6233 unless $cond =~ /^TRUE|FALSE$/;
6234 $cond = Automake::Condition::conditional_negate ($cond)
6240 my %_am_macro_for_cond =
6242 AMDEP => "one of the compiler tests\n"
6243 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6244 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6245 am__fastdepCC => 'AC_PROG_CC',
6246 am__fastdepCCAS => 'AM_PROG_AS',
6247 am__fastdepCXX => 'AC_PROG_CXX',
6248 am__fastdepGCJ => 'AM_PROG_GCJ',
6249 am__fastdepOBJC => 'AC_PROG_OBJC',
6250 am__fastdepUPC => 'AM_PROG_UPC'
6254 # cond_stack_if ($NEGATE, $COND, $WHERE)
6255 # --------------------------------------
6256 sub cond_stack_if ($$$)
6258 my ($negate, $cond, $where) = @_;
6260 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6262 my $text = "$cond does not appear in AM_CONDITIONAL";
6263 my $scope = US_LOCAL;
6264 if (exists $_am_macro_for_cond{$cond})
6266 my $mac = $_am_macro_for_cond{$cond};
6267 $text .= "\n The usual way to define `$cond' is to add ";
6268 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6269 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again";
6270 # These warnings appear in Automake files (depend2.am),
6271 # so there is no need to display them more than once:
6274 error $where, $text, uniq_scope => $scope;
6277 push (@cond_stack, make_conditional_string ($negate, $cond));
6279 return new Automake::Condition (@cond_stack);
6284 # cond_stack_else ($NEGATE, $COND, $WHERE)
6285 # ----------------------------------------
6286 sub cond_stack_else ($$$)
6288 my ($negate, $cond, $where) = @_;
6292 error $where, "else without if";
6296 $cond_stack[$#cond_stack] =
6297 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6299 # If $COND is given, check against it.
6302 $cond = make_conditional_string ($negate, $cond);
6304 error ($where, "else reminder ($negate$cond) incompatible with "
6305 . "current conditional: $cond_stack[$#cond_stack]")
6306 if $cond_stack[$#cond_stack] ne $cond;
6309 return new Automake::Condition (@cond_stack);
6314 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6315 # -----------------------------------------
6316 sub cond_stack_endif ($$$)
6318 my ($negate, $cond, $where) = @_;
6323 error $where, "endif without if";
6327 # If $COND is given, check against it.
6330 $cond = make_conditional_string ($negate, $cond);
6332 error ($where, "endif reminder ($negate$cond) incompatible with "
6333 . "current conditional: $cond_stack[$#cond_stack]")
6334 if $cond_stack[$#cond_stack] ne $cond;
6339 return new Automake::Condition (@cond_stack);
6346 ## ------------------------ ##
6347 ## Handling the variables. ##
6348 ## ------------------------ ##
6351 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6352 # -----------------------------------------------------
6353 # Like define_variable, but the value is a list, and the variable may
6354 # be defined conditionally. The second argument is the condition
6355 # under which the value should be defined; this should be the empty
6356 # string to define the variable unconditionally. The third argument
6357 # is a list holding the values to use for the variable. The value is
6358 # pretty printed in the output file.
6359 sub define_pretty_variable ($$$@)
6361 my ($var, $cond, $where, @value) = @_;
6363 if (! vardef ($var, $cond))
6365 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6366 '', $where, VAR_PRETTY);
6367 rvar ($var)->rdef ($cond)->set_seen;
6372 # define_variable ($VAR, $VALUE, $WHERE)
6373 # --------------------------------------
6374 # Define a new Automake Makefile variable VAR to VALUE, but only if
6375 # not already defined.
6376 sub define_variable ($$$)
6378 my ($var, $value, $where) = @_;
6379 define_pretty_variable ($var, TRUE, $where, $value);
6383 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6384 # ------------------------------------------------------------
6385 # Define the $VAR which content is the list of file names composed of
6386 # a @BASENAME and the $EXTENSION.
6387 sub define_files_variable ($\@$$)
6389 my ($var, $basename, $extension, $where) = @_;
6390 define_variable ($var,
6391 join (' ', map { "$_.$extension" } @$basename),
6396 # Like define_variable, but define a variable to be the configure
6397 # substitution by the same name.
6398 sub define_configure_variable ($)
6401 # Some variables we do not want to output. For instance it
6402 # would be a bad idea to output `U = @U@` when `@U@` can be
6403 # substituted as `\`.
6404 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6405 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6406 '', $configure_vars{$var}, $pretty);
6410 # define_compiler_variable ($LANG)
6411 # --------------------------------
6412 # Define a compiler variable. We also handle defining the `LT'
6413 # version of the command when using libtool.
6414 sub define_compiler_variable ($)
6418 my ($var, $value) = ($lang->compiler, $lang->compile);
6419 my $libtool_tag = '';
6420 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6421 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6422 &define_variable ($var, $value, INTERNAL);
6423 if (var ('LIBTOOL'))
6425 my $verbose = define_verbose_libtool ();
6426 &define_variable ("LT$var",
6427 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6428 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6431 define_verbose_tagvar ($lang->ccer || 'GEN');
6435 # define_linker_variable ($LANG)
6436 # ------------------------------
6437 # Define linker variables.
6438 sub define_linker_variable ($)
6442 my $libtool_tag = '';
6443 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6444 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6446 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6447 # CCLINK = $(CCLD) blah blah...
6449 if (var ('LIBTOOL'))
6451 my $verbose = define_verbose_libtool ();
6452 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6453 . "\$(LIBTOOLFLAGS) --mode=link ";
6455 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6456 &define_variable ($lang->compiler, $lang);
6457 &define_verbose_tagvar ($lang->lder || 'GEN');
6460 sub define_per_target_linker_variable ($$)
6462 my ($linker, $target) = @_;
6464 # If the user wrote a custom link command, we don't define ours.
6465 return "${target}_LINK"
6466 if set_seen "${target}_LINK";
6468 my $xlink = $linker ? $linker : 'LINK';
6470 my $lang = $link_languages{$xlink};
6471 prog_error "Unknown language for linker variable `$xlink'"
6474 my $link_command = $lang->link;
6477 my $libtool_tag = '';
6478 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6479 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6481 my $verbose = define_verbose_libtool ();
6483 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6484 . "--mode=link " . $link_command;
6487 # Rewrite each occurrence of `AM_$flag' in the link
6488 # command into `${derived}_$flag' if it exists.
6489 my $orig_command = $link_command;
6490 my @flags = (@{$lang->flags}, 'LDFLAGS');
6491 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6492 for my $flag (@flags)
6494 my $val = "${target}_$flag";
6495 $link_command =~ s/\(AM_$flag\)/\($val\)/
6499 # If the computed command is the same as the generic command, use
6500 # the command linker variable.
6501 return ($lang->linker, $lang->lder)
6502 if $link_command eq $orig_command;
6504 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6505 return ("${target}_LINK", $lang->lder);
6508 ################################################################
6510 # &check_trailing_slash ($WHERE, $LINE)
6511 # -------------------------------------
6512 # Return 1 iff $LINE ends with a slash.
6513 # Might modify $LINE.
6514 sub check_trailing_slash ($\$)
6516 my ($where, $line) = @_;
6518 # Ignore `##' lines.
6519 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6521 # Catch and fix a common error.
6522 msg "syntax", $where, "whitespace following trailing backslash"
6523 if $$line =~ s/\\\s+\n$/\\\n/;
6525 return $$line =~ /\\$/;
6529 # &read_am_file ($AMFILE, $WHERE)
6530 # -------------------------------
6531 # Read Makefile.am and set up %contents. Simultaneously copy lines
6532 # from Makefile.am into $output_trailer, or define variables as
6533 # appropriate. NOTE we put rules in the trailer section. We want
6534 # user rules to come after our generated stuff.
6535 sub read_am_file ($$)
6537 my ($amfile, $where) = @_;
6539 my $am_file = new Automake::XFile ("< $amfile");
6540 verb "reading $amfile";
6542 # Keep track of the youngest output dependency.
6543 my $mtime = mtime $amfile;
6544 $output_deps_greatest_timestamp = $mtime
6545 if $mtime > $output_deps_greatest_timestamp;
6551 my $var_look = VAR_ASIS;
6553 use constant IN_VAR_DEF => 0;
6554 use constant IN_RULE_DEF => 1;
6555 use constant IN_COMMENT => 2;
6556 my $prev_state = IN_RULE_DEF;
6558 while ($_ = $am_file->getline)
6560 $where->set ("$amfile:$.");
6561 if (/$IGNORE_PATTERN/o)
6563 # Merely delete comments beginning with two hashes.
6565 elsif (/$WHITE_PATTERN/o)
6567 error $where, "blank line following trailing backslash"
6569 # Stick a single white line before the incoming macro or rule.
6572 # Flush all comments seen so far.
6575 $output_vars .= $comment;
6579 elsif (/$COMMENT_PATTERN/o)
6581 # Stick comments before the incoming macro or rule. Make
6582 # sure a blank line precedes the first block of comments.
6583 $spacing = "\n" unless $blank;
6585 $comment .= $spacing . $_;
6587 $prev_state = IN_COMMENT;
6593 $saw_bk = check_trailing_slash ($where, $_);
6596 # We save the conditional stack on entry, and then check to make
6597 # sure it is the same on exit. This lets us conditionally include
6599 my @saved_cond_stack = @cond_stack;
6600 my $cond = new Automake::Condition (@cond_stack);
6602 my $last_var_name = '';
6603 my $last_var_type = '';
6604 my $last_var_value = '';
6606 # FIXME: shouldn't use $_ in this loop; it is too big.
6609 $where->set ("$amfile:$.");
6611 # Make sure the line is \n-terminated.
6615 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6616 # used by users. @MAINT@ is an anachronism now.
6617 $_ =~ s/\@MAINT\@//g
6618 unless $seen_maint_mode;
6620 my $new_saw_bk = check_trailing_slash ($where, $_);
6622 if (/$IGNORE_PATTERN/o)
6624 # Merely delete comments beginning with two hashes.
6626 # Keep any backslash from the previous line.
6627 $new_saw_bk = $saw_bk;
6629 elsif (/$WHITE_PATTERN/o)
6631 # Stick a single white line before the incoming macro or rule.
6633 error $where, "blank line following trailing backslash"
6636 elsif (/$COMMENT_PATTERN/o)
6638 error $where, "comment following trailing backslash"
6639 if $saw_bk && $prev_state != IN_COMMENT;
6641 # Stick comments before the incoming macro or rule.
6642 $comment .= $spacing . $_;
6644 $prev_state = IN_COMMENT;
6648 if ($prev_state == IN_RULE_DEF)
6650 my $cond = new Automake::Condition @cond_stack;
6651 $output_trailer .= $cond->subst_string;
6652 $output_trailer .= $_;
6654 elsif ($prev_state == IN_COMMENT)
6656 # If the line doesn't start with a `#', add it.
6657 # We do this because a continued comment like
6661 # is not portable. BSD make doesn't honor
6662 # escaped newlines in comments.
6664 $comment .= $spacing . $_;
6666 else # $prev_state == IN_VAR_DEF
6668 $last_var_value .= ' '
6669 unless $last_var_value =~ /\s$/;
6670 $last_var_value .= $_;
6674 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6675 $last_var_type, $cond,
6676 $last_var_value, $comment,
6677 $last_where, VAR_ASIS)
6679 $comment = $spacing = '';
6684 elsif (/$IF_PATTERN/o)
6686 $cond = cond_stack_if ($1, $2, $where);
6688 elsif (/$ELSE_PATTERN/o)
6690 $cond = cond_stack_else ($1, $2, $where);
6692 elsif (/$ENDIF_PATTERN/o)
6694 $cond = cond_stack_endif ($1, $2, $where);
6697 elsif (/$RULE_PATTERN/o)
6700 $prev_state = IN_RULE_DEF;
6702 # For now we have to output all definitions of user rules
6703 # and can't diagnose duplicates (see the comment in
6704 # Automake::Rule::define). So we go on and ignore the return value.
6705 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6707 check_variable_expansions ($_, $where);
6709 $output_trailer .= $comment . $spacing;
6710 my $cond = new Automake::Condition @cond_stack;
6711 $output_trailer .= $cond->subst_string;
6712 $output_trailer .= $_;
6713 $comment = $spacing = '';
6715 elsif (/$ASSIGNMENT_PATTERN/o)
6717 # Found a macro definition.
6718 $prev_state = IN_VAR_DEF;
6719 $last_var_name = $1;
6720 $last_var_type = $2;
6721 $last_var_value = $3;
6722 $last_where = $where->clone;
6723 if ($3 ne '' && substr ($3, -1) eq "\\")
6725 # We preserve the `\' because otherwise the long lines
6726 # that are generated will be truncated by broken
6728 $last_var_value = $3 . "\n";
6730 # Normally we try to output variable definitions in the
6731 # same format they were input. However, POSIX compliant
6732 # systems are not required to support lines longer than
6733 # 2048 bytes (most notably, some sed implementation are
6734 # limited to 4000 bytes, and sed is used by config.status
6735 # to rewrite Makefile.in into Makefile). Moreover nobody
6736 # would really write such long lines by hand since it is
6737 # hardly maintainable. So if a line is longer that 1000
6738 # bytes (an arbitrary limit), assume it has been
6739 # automatically generated by some tools, and flatten the
6740 # variable definition. Otherwise, keep the variable as it
6742 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6746 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6747 $last_var_type, $cond,
6748 $last_var_value, $comment,
6749 $last_where, $var_look)
6751 $comment = $spacing = '';
6752 $var_look = VAR_ASIS;
6755 elsif (/$INCLUDE_PATTERN/o)
6759 if ($path =~ s/^\$\(top_srcdir\)\///)
6761 push (@include_stack, "\$\(top_srcdir\)/$path");
6762 # Distribute any included file.
6764 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6765 # otherwise OSF make will implicitly copy the included
6766 # file in the build tree during `make distdir' to satisfy
6768 # (subdircond2.test and subdircond3.test will fail.)
6769 push_dist_common ("\$\(top_srcdir\)/$path");
6773 $path =~ s/\$\(srcdir\)\///;
6774 push (@include_stack, "\$\(srcdir\)/$path");
6775 # Always use the $(srcdir) prefix in DIST_COMMON,
6776 # otherwise OSF make will implicitly copy the included
6777 # file in the build tree during `make distdir' to satisfy
6779 # (subdircond2.test and subdircond3.test will fail.)
6780 push_dist_common ("\$\(srcdir\)/$path");
6781 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6783 $where->push_context ("`$path' included from here");
6784 &read_am_file ($path, $where);
6785 $where->pop_context;
6789 # This isn't an error; it is probably a continued rule.
6790 # In fact, this is what we assume.
6791 $prev_state = IN_RULE_DEF;
6792 check_variable_expansions ($_, $where);
6793 $output_trailer .= $comment . $spacing;
6794 my $cond = new Automake::Condition @cond_stack;
6795 $output_trailer .= $cond->subst_string;
6796 $output_trailer .= $_;
6797 $comment = $spacing = '';
6798 error $where, "`#' comment at start of rule is unportable"
6799 if $_ =~ /^\t\s*\#/;
6802 $saw_bk = $new_saw_bk;
6803 $_ = $am_file->getline;
6806 $output_trailer .= $comment;
6808 error ($where, "trailing backslash on last line")
6811 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6812 : "too many conditionals closed in include file"))
6813 if "@saved_cond_stack" ne "@cond_stack";
6817 # define_standard_variables ()
6818 # ----------------------------
6819 # A helper for read_main_am_file which initializes configure variables
6820 # and variables from header-vars.am.
6821 sub define_standard_variables
6823 my $saved_output_vars = $output_vars;
6824 my ($comments, undef, $rules) =
6825 file_contents_internal (1, "$libdir/am/header-vars.am",
6826 new Automake::Location);
6828 foreach my $var (sort keys %configure_vars)
6830 &define_configure_variable ($var);
6833 $output_vars .= $comments . $rules;
6836 # Read main am file.
6837 sub read_main_am_file
6841 # This supports the strange variable tricks we are about to play.
6842 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6843 if (scalar (variables) > 0);
6845 # Generate copyright header for generated Makefile.in.
6846 # We do discard the output of predefined variables, handled below.
6847 $output_vars = ("# $in_file_name generated by automake "
6848 . $VERSION . " from $am_file_name.\n");
6849 $output_vars .= '# ' . subst ('configure_input') . "\n";
6850 $output_vars .= $gen_copyright;
6852 # We want to predefine as many variables as possible. This lets
6853 # the user set them with `+=' in Makefile.am.
6854 &define_standard_variables;
6856 # Read user file, which might override some of our values.
6857 &read_am_file ($amfile, new Automake::Location);
6862 ################################################################
6865 # &flatten ($STRING)
6866 # ------------------
6867 # Flatten the $STRING and return the result.
6881 # transform_token ($TOKEN, \%PAIRS, $KEY)
6882 # =======================================
6883 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6884 # (which should be ?KEY? or any of the special %% requests)..
6885 sub transform_token ($$$)
6887 my ($token, $transform, $key) = @_;
6888 my $res = $transform->{$key};
6889 prog_error "Unknown key `$key' in `$token'" unless defined $res;
6894 # transform ($TOKEN, \%PAIRS)
6895 # ===========================
6896 # If ($TOKEN, $VAL) is in %PAIRS:
6897 # - replaces %KEY% with $VAL,
6898 # - enables/disables ?KEY? and ?!KEY?,
6899 # - replaces %?KEY% with TRUE or FALSE.
6900 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6901 # IFTRUE / IFFALSE, as appropriate.
6904 my ($token, $transform) = @_;
6907 # Must be before the following pattern to exclude the case
6908 # when there is neither IFTRUE nor IFFALSE.
6909 if ($token =~ /^%([\w\-]+)%$/)
6911 return transform_token ($token, $transform, $1);
6913 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6914 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6916 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6919 elsif ($token =~ /^%\?([\w\-]+)%$/)
6921 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6924 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6926 my $neg = ($1 eq '!') ? 1 : 0;
6927 my $val = transform_token ($token, $transform, $2);
6928 return (!!$val == $neg) ? '##%' : '';
6932 prog_error "Unknown request format: $token";
6938 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6939 # ------------------------------------------
6940 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6942 sub make_paragraphs ($%)
6944 my ($file, %transform) = @_;
6946 # Complete %transform with global options.
6947 # Note that %transform goes last, so it overrides global options.
6948 %transform = ('CYGNUS' => !! option 'cygnus',
6950 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6952 'XZ' => !! option 'dist-xz',
6953 'LZMA' => !! option 'dist-lzma',
6954 'LZIP' => !! option 'dist-lzip',
6955 'BZIP2' => !! option 'dist-bzip2',
6956 'COMPRESS' => !! option 'dist-tarZ',
6957 'GZIP' => ! option 'no-dist-gzip',
6958 'SHAR' => !! option 'dist-shar',
6959 'ZIP' => !! option 'dist-zip',
6961 'INSTALL-INFO' => ! option 'no-installinfo',
6962 'INSTALL-MAN' => ! option 'no-installman',
6963 'HAVE-MANS' => !! var ('MANS'),
6964 'CK-NEWS' => !! option 'check-news',
6966 'SUBDIRS' => !! var ('SUBDIRS'),
6967 'TOPDIR_P' => $relative_dir eq '.',
6969 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6970 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6971 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6973 'LIBTOOL' => !! var ('LIBTOOL'),
6975 'FIRST' => ! $transformed_files{$file},
6978 $transformed_files{$file} = 1;
6979 $_ = $am_file_cache{$file};
6983 verb "reading $file";
6984 # Swallow the whole file.
6985 my $fc_file = new Automake::XFile "< $file";
6986 my $saved_dollar_slash = $/;
6988 $_ = $fc_file->getline;
6989 $/ = $saved_dollar_slash;
6992 # Remove ##-comments.
6993 # Besides we don't need more than two consecutive new-lines.
6994 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6996 $am_file_cache{$file} = $_;
6999 # Substitute Automake template tokens.
7000 s/(?: % \?? [\w\-]+ %
7001 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7003 )/transform($&, \%transform)/gex;
7004 # transform() may have added some ##%-comments to strip.
7005 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7006 # ####### and do not remove the latter.)
7007 s/^[ \t]*(?:##%)+.*\n//gm;
7009 # Split at unescaped new lines.
7010 my @lines = split (/(?<!\\)\n/, $_);
7013 while (defined ($_ = shift @lines))
7016 # If we are a rule, eat as long as we start with a tab.
7017 if (/$RULE_PATTERN/smo)
7019 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7021 $paragraph .= "\n$_";
7023 unshift (@lines, $_);
7026 # If we are a comments, eat as much comments as you can.
7027 elsif (/$COMMENT_PATTERN/smo)
7029 while (defined ($_ = shift @lines)
7030 && $_ =~ /$COMMENT_PATTERN/smo)
7032 $paragraph .= "\n$_";
7034 unshift (@lines, $_);
7037 push @res, $paragraph;
7045 # ($COMMENT, $VARIABLES, $RULES)
7046 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7047 # -------------------------------------------------------------
7048 # Return contents of a file from $libdir/am, automatically skipping
7049 # macros or rules which are already known. $IS_AM iff the caller is
7050 # reading an Automake file (as opposed to the user's Makefile.am).
7051 sub file_contents_internal ($$$%)
7053 my ($is_am, $file, $where, %transform) = @_;
7055 $where->set ($file);
7057 my $result_vars = '';
7058 my $result_rules = '';
7062 # The following flags are used to track rules spanning across
7063 # multiple paragraphs.
7064 my $is_rule = 0; # 1 if we are processing a rule.
7065 my $discard_rule = 0; # 1 if the current rule should not be output.
7067 # We save the conditional stack on entry, and then check to make
7068 # sure it is the same on exit. This lets us conditionally include
7070 my @saved_cond_stack = @cond_stack;
7071 my $cond = new Automake::Condition (@cond_stack);
7073 foreach (make_paragraphs ($file, %transform))
7075 # FIXME: no line number available.
7076 $where->set ($file);
7079 error $where, "blank line following trailing backslash:\n$_"
7081 error $where, "comment following trailing backslash:\n$_"
7087 # Stick empty line before the incoming macro or rule.
7090 elsif (/$COMMENT_PATTERN/mso)
7093 # Stick comments before the incoming macro or rule.
7097 # Handle inclusion of other files.
7098 elsif (/$INCLUDE_PATTERN/o)
7102 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7103 $where->push_context ("`$file' included from here");
7105 my ($com, $vars, $rules)
7106 = file_contents_internal ($is_am, $file, $where, %transform);
7107 $where->pop_context;
7109 $result_vars .= $vars;
7110 $result_rules .= $rules;
7114 # Handling the conditionals.
7115 elsif (/$IF_PATTERN/o)
7117 $cond = cond_stack_if ($1, $2, $file);
7119 elsif (/$ELSE_PATTERN/o)
7121 $cond = cond_stack_else ($1, $2, $file);
7123 elsif (/$ENDIF_PATTERN/o)
7125 $cond = cond_stack_endif ($1, $2, $file);
7129 elsif (/$RULE_PATTERN/mso)
7133 # Separate relationship from optional actions: the first
7134 # `new-line tab" not preceded by backslash (continuation
7137 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7138 my ($relationship, $actions) = ($1, $2 || '');
7140 # Separate targets from dependencies: the first colon.
7141 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7142 my ($targets, $dependencies) = ($1, $2);
7143 # Remove the escaped new lines.
7144 # I don't know why, but I have to use a tmp $flat_deps.
7145 my $flat_deps = &flatten ($dependencies);
7146 my @deps = split (' ', $flat_deps);
7148 foreach (split (' ', $targets))
7150 # FIXME: 1. We are not robust to people defining several targets
7151 # at once, only some of them being in %dependencies. The
7152 # actions from the targets in %dependencies are usually generated
7153 # from the content of %actions, but if some targets in $targets
7154 # are not in %dependencies the ELSE branch will output
7155 # a rule for all $targets (i.e. the targets which are both
7156 # in %dependencies and $targets will have two rules).
7158 # FIXME: 2. The logic here is not able to output a
7159 # multi-paragraph rule several time (e.g. for each condition
7160 # it is defined for) because it only knows the first paragraph.
7162 # FIXME: 3. We are not robust to people defining a subset
7163 # of a previously defined "multiple-target" rule. E.g.
7164 # `foo:' after `foo bar:'.
7166 # Output only if not in FALSE.
7167 if (defined $dependencies{$_} && $cond != FALSE)
7169 &depend ($_, @deps);
7170 register_action ($_, $actions);
7174 # Free-lance dependency. Output the rule for all the
7175 # targets instead of one by one.
7176 my @undefined_conds =
7177 Automake::Rule::define ($targets, $file,
7178 $is_am ? RULE_AUTOMAKE : RULE_USER,
7180 for my $undefined_cond (@undefined_conds)
7182 my $condparagraph = $paragraph;
7183 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7184 $result_rules .= "$spacing$comment$condparagraph\n";
7186 if (scalar @undefined_conds == 0)
7188 # Remember to discard next paragraphs
7189 # if they belong to this rule.
7190 # (but see also FIXME: #2 above.)
7193 $comment = $spacing = '';
7199 elsif (/$ASSIGNMENT_PATTERN/mso)
7201 my ($var, $type, $val) = ($1, $2, $3);
7202 error $where, "variable `$var' with trailing backslash"
7207 Automake::Variable::define ($var,
7208 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7209 $type, $cond, $val, $comment, $where,
7213 $comment = $spacing = '';
7217 # This isn't an error; it is probably some tokens which
7218 # configure is supposed to replace, such as `@SET-MAKE@',
7219 # or some part of a rule cut by an if/endif.
7220 if (! $cond->false && ! ($is_rule && $discard_rule))
7222 s/^/$cond->subst_string/gme;
7223 $result_rules .= "$spacing$comment$_\n";
7225 $comment = $spacing = '';
7229 error ($where, @cond_stack ?
7230 "unterminated conditionals: @cond_stack" :
7231 "too many conditionals closed in include file")
7232 if "@saved_cond_stack" ne "@cond_stack";
7234 return ($comment, $result_vars, $result_rules);
7239 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7240 # ------------------------------------------------
7241 # Return contents of a file from $libdir/am, automatically skipping
7242 # macros or rules which are already known.
7243 sub file_contents ($$%)
7245 my ($basename, $where, %transform) = @_;
7246 my ($comments, $variables, $rules) =
7247 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7249 return "$comments$variables$rules";
7254 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7255 # -----------------------------------------------------
7256 # Find all variable prefixes that are used for install directories. A
7257 # prefix `zar' qualifies iff:
7259 # * `zardir' is a variable.
7260 # * `zar_PRIMARY' is a variable.
7262 # As a side effect, it looks for misspellings. It is an error to have
7263 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7264 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7265 # of the same name (with "dir" appended) exists. For instance, if the
7266 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7267 # This is to provide a little extra flexibility in those cases which
7269 sub am_primary_prefixes ($$@)
7271 my ($primary, $can_dist, @prefixes) = @_;
7274 my %valid = map { $_ => 0 } @prefixes;
7275 $valid{'EXTRA'} = 0;
7276 foreach my $var (variables $primary)
7278 # Automake is allowed to define variables that look like primaries
7279 # but which aren't. E.g. INSTALL_sh_DATA.
7280 # Autoconf can also define variables like INSTALL_DATA, so
7281 # ignore all configure variables (at least those which are not
7282 # redefined in Makefile.am).
7283 # FIXME: We should make sure that these variables are not
7284 # conditionally defined (or else adjust the condition below).
7285 my $def = $var->def (TRUE);
7286 next if $def && $def->owner != VAR_MAKEFILE;
7288 my $varname = $var->name;
7290 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7292 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7293 if ($dist ne '' && ! $can_dist)
7296 "invalid variable `$varname': `dist' is forbidden");
7298 # Standard directories must be explicitly allowed.
7299 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7302 "`${X}dir' is not a legitimate directory " .
7305 # A not explicitly valid directory is allowed if Xdir is defined.
7306 elsif (! defined $valid{$X} &&
7307 $var->requires_variables ("`$varname' is used", "${X}dir"))
7309 # Nothing to do. Any error message has been output
7310 # by $var->requires_variables.
7314 # Ensure all extended prefixes are actually used.
7315 $valid{"$base$dist$X"} = 1;
7320 prog_error "unexpected variable name: $varname";
7324 # Return only those which are actually defined.
7325 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7329 # Handle `where_HOW' variable magic. Does all lookups, generates
7330 # install code, and possibly generates code to define the primary
7331 # variable. The first argument is the name of the .am file to munge,
7332 # the second argument is the primary variable (e.g. HEADERS), and all
7333 # subsequent arguments are possible installation locations.
7335 # Returns list of [$location, $value] pairs, where
7336 # $value's are the values in all where_HOW variable, and $location
7337 # there associated location (the place here their parent variables were
7340 # FIXME: this should be rewritten to be cleaner. It should be broken
7341 # up into multiple functions.
7343 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7350 my $default_dist = 0;
7353 if ($args[0] eq '-noextra')
7357 elsif ($args[0] eq '-candist')
7361 elsif ($args[0] eq '-defaultdist')
7366 elsif ($args[0] !~ /^-/)
7373 my ($file, $primary, @prefix) = @args;
7375 # Now that configure substitutions are allowed in where_HOW
7376 # variables, it is an error to actually define the primary. We
7377 # allow `JAVA', as it is customarily used to mean the Java
7378 # interpreter. This is but one of several Java hacks. Similarly,
7379 # `PYTHON' is customarily used to mean the Python interpreter.
7380 reject_var $primary, "`$primary' is an anachronism"
7381 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7383 # Get the prefixes which are valid and actually used.
7384 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7386 # If a primary includes a configure substitution, then the EXTRA_
7387 # form is required. Otherwise we can't properly do our job.
7393 foreach my $X (@prefix)
7395 my $nodir_name = $X;
7396 my $one_name = $X . '_' . $primary;
7397 my $one_var = var $one_name;
7399 my $strip_subdir = 1;
7400 # If subdir prefix should be preserved, do so.
7401 if ($nodir_name =~ /^nobase_/)
7404 $nodir_name =~ s/^nobase_//;
7407 # If files should be distributed, do so.
7411 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7412 || (! $default_dist && $nodir_name =~ /^dist_/));
7413 $nodir_name =~ s/^(dist|nodist)_//;
7417 # Use the location of the currently processed variable.
7418 # We are not processing a particular condition, so pick the first
7420 my $tmpcond = $one_var->conditions->one_cond;
7421 my $where = $one_var->rdef ($tmpcond)->location->clone;
7423 # Append actual contents of where_PRIMARY variable to
7424 # @result, skipping @substitutions@.
7425 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7427 my ($loc, $value) = @$locvals;
7428 # Skip configure substitutions.
7429 if ($value =~ /^\@.*\@$/)
7431 if ($nodir_name eq 'EXTRA')
7434 "`$one_name' contains configure substitution, "
7437 # Check here to make sure variables defined in
7438 # configure.ac do not imply that EXTRA_PRIMARY
7440 elsif (! defined $configure_vars{$one_name})
7442 $require_extra = $one_name
7448 # Strip any $(EXEEXT) suffix the user might have added, or this
7449 # will confuse &handle_source_transform and &check_canonical_spelling.
7450 # We'll add $(EXEEXT) back later anyway.
7451 # Do it here rather than in handle_programs so the uniquifying at the
7452 # end of this function works.
7453 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7454 if $primary eq 'PROGRAMS';
7456 push (@result, $locvals);
7459 # A blatant hack: we rewrite each _PROGRAMS primary to include
7461 append_exeext { 1 } $one_name
7462 if $primary eq 'PROGRAMS';
7463 # "EXTRA" shouldn't be used when generating clean targets,
7464 # all, or install targets. We used to warn if EXTRA_FOO was
7465 # defined uselessly, but this was annoying.
7467 if $nodir_name eq 'EXTRA';
7469 if ($nodir_name eq 'check')
7471 push (@check, '$(' . $one_name . ')');
7475 push (@used, '$(' . $one_name . ')');
7478 # Is this to be installed?
7479 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7481 # If so, with install-exec? (or install-data?).
7482 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7484 my $check_options_p = $install_p && !! option 'std-options';
7486 # Use the location of the currently processed variable as context.
7487 $where->push_context ("while processing `$one_name'");
7489 # The variable containing all files to distribute.
7490 my $distvar = "\$($one_name)";
7491 $distvar = shadow_unconditionally ($one_name, $where)
7492 if ($dist_p && $one_var->has_conditional_contents);
7494 # Singular form of $PRIMARY.
7495 (my $one_primary = $primary) =~ s/S$//;
7496 $output_rules .= &file_contents ($file, $where,
7497 PRIMARY => $primary,
7498 ONE_PRIMARY => $one_primary,
7500 NDIR => $nodir_name,
7501 BASE => $strip_subdir,
7504 INSTALL => $install_p,
7506 DISTVAR => $distvar,
7507 'CK-OPTS' => $check_options_p);
7510 # The JAVA variable is used as the name of the Java interpreter.
7511 # The PYTHON variable is used as the name of the Python interpreter.
7512 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7515 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7516 $output_vars .= "\n";
7519 err_var ($require_extra,
7520 "`$require_extra' contains configure substitution,\n"
7521 . "but `EXTRA_$primary' not defined")
7522 if ($require_extra && ! var ('EXTRA_' . $primary));
7524 # Push here because PRIMARY might be configure time determined.
7525 push (@all, '$(' . $primary . ')')
7526 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7528 # Make the result unique. This lets the user use conditionals in
7529 # a natural way, but still lets us program lazily -- we don't have
7530 # to worry about handling a particular object more than once.
7531 # We will keep only one location per object.
7533 for my $pair (@result)
7535 my ($loc, $val) = @$pair;
7536 $result{$val} = $loc;
7538 my @l = sort keys %result;
7539 return map { [$result{$_}->clone, $_] } @l;
7543 ################################################################
7545 # Each key in this hash is the name of a directory holding a
7546 # Makefile.in. These variables are local to `is_make_dir'.
7548 my $make_dirs_set = 0;
7553 if (! $make_dirs_set)
7555 foreach my $iter (@configure_input_files)
7557 $make_dirs{dirname ($iter)} = 1;
7559 # We also want to notice Makefile.in's.
7560 foreach my $iter (@other_input_files)
7562 if ($iter =~ /Makefile\.in$/)
7564 $make_dirs{dirname ($iter)} = 1;
7569 return defined $make_dirs{$dir};
7572 ################################################################
7574 # Find the aux dir. This should match the algorithm used by
7575 # ./configure. (See the Autoconf documentation for for
7576 # AC_CONFIG_AUX_DIR.)
7577 sub locate_aux_dir ()
7579 if (! $config_aux_dir_set_in_configure_ac)
7581 # The default auxiliary directory is the first
7582 # of ., .., or ../.. that contains install-sh.
7583 # Assume . if install-sh doesn't exist yet.
7584 for my $dir (qw (. .. ../..))
7586 if (-f "$dir/install-sh")
7588 $config_aux_dir = $dir;
7592 $config_aux_dir = '.' unless $config_aux_dir;
7594 # Avoid unsightly '/.'s.
7595 $am_config_aux_dir =
7596 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7597 $am_config_aux_dir =~ s,/*$,,;
7601 # &push_required_file ($DIR, $FILE, $FULLFILE)
7602 # --------------------------------------------------
7603 # Push the given file onto DIST_COMMON.
7604 sub push_required_file
7606 my ($dir, $file, $fullfile) = @_;
7608 # If the file to be distributed is in the same directory of the
7609 # currently processed Makefile.am, then we want to distribute it
7610 # from this same Makefile.am.
7611 if ($dir eq $relative_dir)
7613 push_dist_common ($file);
7615 # This is needed to allow a construct in a non-top-level Makefile.am
7616 # to require a file in the build-aux directory (see at least the test
7617 # script `test-driver-is-distributed.test'). This is related to the
7618 # automake bug#9546. Note that the use of $config_aux_dir instead
7619 # of $am_config_aux_dir here is deliberate and necessary.
7620 elsif ($dir eq $config_aux_dir)
7622 push_dist_common ("$am_config_aux_dir/$file");
7624 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7625 # We probably need some refactoring of this function and its callers,
7626 # to have a more explicit and systematic handling of all the special
7627 # cases; but, since there are only two of them, this is low-priority
7629 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7631 # Avoid unsightly '/.'s.
7632 my $am_config_libobj_dir =
7634 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7635 $am_config_libobj_dir =~ s|/*$||;
7636 push_dist_common ("$am_config_libobj_dir/$file");
7638 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7640 # If we are doing the topmost directory, and the file is in a
7641 # subdir which does not have a Makefile, then we distribute it
7644 # If a required file is above the source tree, it is important
7645 # to prefix it with `$(srcdir)' so that no VPATH search is
7646 # performed. Otherwise problems occur with Make implementations
7647 # that rewrite and simplify rules whose dependencies are found in a
7648 # VPATH location. Here is an example with OSF1/Tru64 Make.
7660 # Dependency `../a' was found in `sub/../a', but this make
7661 # implementation simplified it as `a'. (Note that the sub/
7662 # directory does not even exist.)
7664 # This kind of VPATH rewriting seems hard to cancel. The
7665 # distdir.am hack against VPATH rewriting works only when no
7666 # simplification is done, i.e., for dependencies which are in
7667 # subdirectories, not in enclosing directories. Hence, in
7668 # the latter case we use a full path to make sure no VPATH
7670 $fullfile = '$(srcdir)/' . $fullfile
7671 if $dir =~ m,^\.\.(?:$|/),;
7673 push_dist_common ($fullfile);
7677 prog_error "a Makefile in relative directory $relative_dir " .
7678 "can't add files in directory $dir to DIST_COMMON";
7683 # If a file name appears as a key in this hash, then it has already
7684 # been checked for. This allows us not to report the same error more
7686 my %required_file_not_found = ();
7688 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7689 # --------------------------------------------------------
7690 # Verify that the file must exist in $DIRECTORY, or install it.
7691 sub required_file_check_or_copy ($$$)
7693 my ($where, $dir, $file) = @_;
7695 my $fullfile = "$dir/$file";
7697 my $dangling_sym = 0;
7699 if (-l $fullfile && ! -f $fullfile)
7703 elsif (dir_has_case_matching_file ($dir, $file))
7708 # `--force-missing' only has an effect if `--add-missing' is
7711 if $found_it && (! $add_missing || ! $force_missing);
7713 # If we've already looked for it, we're done. You might
7714 # wonder why we don't do this before searching for the
7715 # file. If we do that, then something like
7716 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7720 return if defined $required_file_not_found{$fullfile};
7721 $required_file_not_found{$fullfile} = 1;
7723 if ($dangling_sym && $add_missing)
7732 # Only install missing files according to our desired
7734 my $message = "required file `$fullfile' not found";
7737 if (-f "$libdir/$file")
7741 # Install the missing file. Symlink if we
7742 # can, copy if we must. Note: delete the file
7743 # first, in case it is a dangling symlink.
7744 $message = "installing `$fullfile'";
7746 # The license file should not be volatile.
7747 if ($file eq "COPYING")
7749 $message .= " using GNU General Public License v3 file";
7750 $trailer2 = "\n Consider adding the COPYING file"
7751 . " to the version control system"
7752 . "\n for your code, to avoid questions"
7753 . " about which license your project uses";
7756 # Windows Perl will hang if we try to delete a
7757 # file that doesn't exist.
7758 unlink ($fullfile) if -f $fullfile;
7759 if ($symlink_exists && ! $copy_missing)
7761 if (! symlink ("$libdir/$file", $fullfile)
7765 $trailer = "; error while making link: $!";
7768 elsif (system ('cp', "$libdir/$file", $fullfile))
7771 $trailer = "\n error while copying";
7773 set_dir_cache_file ($dir, $file);
7778 $trailer = "\n `automake --add-missing' can install `$file'"
7779 if -f "$libdir/$file";
7782 # If --force-missing was specified, and we have
7783 # actually found the file, then do nothing.
7785 if $found_it && $force_missing;
7787 # If we couldn't install the file, but it is a target in
7788 # the Makefile, don't print anything. This allows files
7789 # like README, AUTHORS, or THANKS to be generated.
7791 if !$suppress && rule $file;
7793 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7797 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7798 # ----------------------------------------------------------------------
7799 # Verify that the file must exist in $DIRECTORY, or install it.
7800 # $MYSTRICT is the strictness level at which this file becomes required.
7801 # Worker threads may queue up the action to be serialized by the master,
7803 sub require_file_internal ($$$@)
7805 my ($where, $mystrict, $dir, $queue, @files) = @_;
7808 unless $strictness >= $mystrict;
7810 foreach my $file (@files)
7812 push_required_file ($dir, $file, "$dir/$file");
7815 queue_required_file_check_or_copy ($required_conf_file_queue,
7816 QUEUE_CONF_FILE, $relative_dir,
7817 $where, $mystrict, @files);
7821 required_file_check_or_copy ($where, $dir, $file);
7826 # &require_file ($WHERE, $MYSTRICT, @FILES)
7827 # -----------------------------------------
7828 sub require_file ($$@)
7830 my ($where, $mystrict, @files) = @_;
7831 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7834 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7835 # -----------------------------------------------------------
7836 sub require_file_with_macro ($$$@)
7838 my ($cond, $macro, $mystrict, @files) = @_;
7839 $macro = rvar ($macro) unless ref $macro;
7840 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7843 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7844 # ----------------------------------------------------------------
7845 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7846 # must be in that directory. Otherwise expect it in the current directory.
7847 sub require_libsource_with_macro ($$$@)
7849 my ($cond, $macro, $mystrict, @files) = @_;
7850 $macro = rvar ($macro) unless ref $macro;
7851 if ($config_libobj_dir)
7853 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7854 $config_libobj_dir, 0, @files);
7858 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7862 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7863 # $MYSTRICT, @FILES)
7864 # ---------------------------------------------------------------
7865 sub queue_required_file_check_or_copy ($$$$@)
7867 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7871 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7875 @serial_loc = (QUEUE_STRING, $where);
7877 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7880 # &require_queued_file_check_or_copy ($QUEUE)
7881 # -------------------------------------------
7882 sub require_queued_file_check_or_copy ($)
7886 my $dir = $queue->dequeue ();
7887 my $loc_key = $queue->dequeue ();
7888 if ($loc_key eq QUEUE_LOCATION)
7890 $where = Automake::Location::deserialize ($queue);
7892 elsif ($loc_key eq QUEUE_STRING)
7894 $where = $queue->dequeue ();
7898 prog_error "unexpected key $loc_key";
7900 my $mystrict = $queue->dequeue ();
7901 my $nfiles = $queue->dequeue ();
7903 push @files, $queue->dequeue ()
7904 foreach (1 .. $nfiles);
7906 unless $strictness >= $mystrict;
7907 foreach my $file (@files)
7909 required_file_check_or_copy ($where, $config_aux_dir, $file);
7913 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7914 # ----------------------------------------------
7915 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7916 sub require_conf_file ($$@)
7918 my ($where, $mystrict, @files) = @_;
7919 my $queue = defined $required_conf_file_queue ? 1 : 0;
7920 require_file_internal ($where, $mystrict, $config_aux_dir,
7925 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7926 # ----------------------------------------------------------------
7927 sub require_conf_file_with_macro ($$$@)
7929 my ($cond, $macro, $mystrict, @files) = @_;
7930 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7934 ################################################################
7936 # &require_build_directory ($DIRECTORY)
7937 # -------------------------------------
7938 # Emit rules to create $DIRECTORY if needed, and return
7939 # the file that any target requiring this directory should be made
7941 # We don't want to emit the rule twice, and want to reuse it
7942 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7943 sub require_build_directory ($)
7945 my $directory = shift;
7947 return $directory_map{$directory} if exists $directory_map{$directory};
7949 my $cdir = File::Spec->canonpath ($directory);
7951 if (exists $directory_map{$cdir})
7953 my $stamp = $directory_map{$cdir};
7954 $directory_map{$directory} = $stamp;
7958 my $dirstamp = "$cdir/\$(am__dirstamp)";
7960 $directory_map{$directory} = $dirstamp;
7961 $directory_map{$cdir} = $dirstamp;
7963 # Set a variable for the dirstamp basename.
7964 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7965 '$(am__leading_dot)dirstamp');
7967 # Directory must be removed by `make distclean'.
7968 $clean_files{$dirstamp} = DIST_CLEAN;
7970 $output_rules .= ("$dirstamp:\n"
7971 . "\t\@\$(MKDIR_P) $directory\n"
7972 . "\t\@: > $dirstamp\n");
7977 # &require_build_directory_maybe ($FILE)
7978 # --------------------------------------
7979 # If $FILE lies in a subdirectory, emit a rule to create this
7980 # directory and return the file that $FILE should be made
7981 # dependent upon. Otherwise, just return the empty string.
7982 sub require_build_directory_maybe ($)
7985 my $directory = dirname ($file);
7987 if ($directory ne '.')
7989 return require_build_directory ($directory);
7997 ################################################################
7999 # Push a list of files onto dist_common.
8000 sub push_dist_common
8002 prog_error "push_dist_common run after handle_dist"
8003 if $handle_dist_run;
8004 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8005 '', INTERNAL, VAR_PRETTY);
8009 ################################################################
8011 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8012 # ----------------------------------------------
8013 # Generate a Makefile.in given the name of the corresponding Makefile and
8014 # the name of the file output by config.status.
8015 sub generate_makefile ($$)
8017 my ($makefile_am, $makefile_in) = @_;
8019 # Reset all the Makefile.am related variables.
8020 initialize_per_input;
8022 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8023 # warnings for this file. So hold any warning issued before
8024 # we have processed AUTOMAKE_OPTIONS.
8025 buffer_messages ('warning');
8027 # Name of input file ("Makefile.am") and output file
8028 # ("Makefile.in"). These have no directory components.
8029 $am_file_name = basename ($makefile_am);
8030 $in_file_name = basename ($makefile_in);
8032 # $OUTPUT is encoded. If it contains a ":" then the first element
8033 # is the real output file, and all remaining elements are input
8034 # files. We don't scan or otherwise deal with these input files,
8035 # other than to mark them as dependencies. See
8036 # &scan_autoconf_files for details.
8037 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8039 $relative_dir = dirname ($makefile);
8040 $am_relative_dir = dirname ($makefile_am);
8041 $topsrcdir = backname ($relative_dir);
8043 read_main_am_file ($makefile_am);
8046 # Process buffered warnings.
8048 # Fatal error. Just return, so we can continue with next file.
8051 # Process buffered warnings.
8054 # There are a few install-related variables that you should not define.
8055 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8060 my $def = $v->def (TRUE);
8061 prog_error "$var not defined in condition TRUE"
8063 reject_var $var, "`$var' should not be defined"
8064 if $def->owner != VAR_AUTOMAKE;
8068 # Catch some obsolete variables.
8069 msg_var ('obsolete', 'INCLUDES',
8070 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8071 if var ('INCLUDES');
8073 # Must do this after reading .am file.
8074 define_variable ('subdir', $relative_dir, INTERNAL);
8076 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8077 # recursive rules are enabled.
8078 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8079 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8081 # Check first, because we might modify some state.
8083 check_gnu_standards;
8084 check_gnits_standards;
8086 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8093 # These must be run after all the sources are scanned. They
8094 # use variables defined by &handle_libraries, &handle_ltlibraries,
8095 # or &handle_programs.
8100 # Variables used by distdir.am and tags.am.
8101 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8102 if (! option 'no-dist')
8104 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8116 handle_minor_options;
8117 # Must come after handle_programs so that %known_programs is up-to-date.
8120 # This must come after most other rules.
8124 do_check_merge_target;
8125 handle_all ($makefile);
8128 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8130 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8132 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8134 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8138 handle_clean ($makefile);
8139 handle_factored_dependencies;
8141 # Comes last, because all the above procedures may have
8142 # defined or overridden variables.
8143 $output_vars .= output_variables;
8147 if ($exit_code != 0)
8149 verb "not writing $makefile_in because of earlier errors";
8153 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8155 # We make sure that `all:' is the first target.
8157 "$output_vars$output_all$output_header$output_rules$output_trailer";
8159 # Decide whether we must update the output file or not.
8160 # We have to update in the following situations.
8161 # * $force_generation is set.
8162 # * any of the output dependencies is younger than the output
8163 # * the contents of the output is different (this can happen
8164 # if the project has been populated with a file listed in
8165 # @common_files since the last run).
8166 # Output's dependencies are split in two sets:
8167 # * dependencies which are also configure dependencies
8168 # These do not change between each Makefile.am
8169 # * other dependencies, specific to the Makefile.am being processed
8170 # (such as the Makefile.am itself, or any Makefile fragment
8172 my $timestamp = mtime $makefile_in;
8173 if (! $force_generation
8174 && $configure_deps_greatest_timestamp < $timestamp
8175 && $output_deps_greatest_timestamp < $timestamp
8176 && $output eq contents ($makefile_in))
8178 verb "$makefile_in unchanged";
8179 # No need to update.
8183 if (-e $makefile_in)
8185 unlink ($makefile_in)
8186 or fatal "cannot remove $makefile_in: $!";
8189 my $gm_file = new Automake::XFile "> $makefile_in";
8190 verb "creating $makefile_in";
8191 print $gm_file $output;
8194 ################################################################
8199 ################################################################
8201 # Helper function for usage().
8202 sub print_autodist_files (@)
8204 my @lcomm = sort (&uniq (@_));
8207 format USAGE_FORMAT =
8208 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8209 $four[0], $four[1], $four[2], $four[3]
8211 local $~ = "USAGE_FORMAT";
8214 my $rows = int(@lcomm / $cols);
8215 my $rest = @lcomm % $cols;
8226 for (my $y = 0; $y < $rows; $y++)
8228 @four = ("", "", "", "");
8229 for (my $x = 0; $x < $cols; $x++)
8231 last if $y + 1 == $rows && $x == $rest;
8233 my $idx = (($x > $rest)
8234 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8238 $four[$x] = $lcomm[$idx];
8245 # Print usage information.
8248 print "Usage: $0 [OPTION]... [Makefile]...
8250 Generate Makefile.in for configure from Makefile.am.
8253 --help print this help, then exit
8254 --version print version number, then exit
8255 -v, --verbose verbosely list files processed
8256 --no-force only update Makefile.in's that are out of date
8257 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8259 Dependency tracking:
8260 -i, --ignore-deps disable dependency tracking code
8261 --include-deps enable dependency tracking code
8264 --cygnus assume program is part of Cygnus-style tree
8265 --foreign set strictness to foreign
8266 --gnits set strictness to gnits
8267 --gnu set strictness to gnu
8270 -a, --add-missing add missing standard files to package
8271 --libdir=DIR directory storing library files
8272 -c, --copy with -a, copy missing files (default is symlink)
8273 -f, --force-missing force update of standard files
8276 Automake::ChannelDefs::usage;
8278 print "\nFiles automatically distributed if found " .
8280 print_autodist_files @common_files;
8281 print "\nFiles automatically distributed if found " .
8282 "(under certain conditions):\n";
8283 print_autodist_files @common_sometimes;
8286 Report bugs to <@PACKAGE_BUGREPORT@>.
8287 GNU Automake home page: <@PACKAGE_URL@>.
8288 General help using GNU software: <http://www.gnu.org/gethelp/>.
8291 # --help always returns 0 per GNU standards.
8298 # Print version information
8302 automake (GNU $PACKAGE) $VERSION
8303 Copyright (C) 2011 Free Software Foundation, Inc.
8304 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8305 This is free software: you are free to change and redistribute it.
8306 There is NO WARRANTY, to the extent permitted by law.
8308 Written by Tom Tromey <tromey\@redhat.com>
8309 and Alexandre Duret-Lutz <adl\@gnu.org>.
8311 # --version always returns 0 per GNU standards.
8315 ################################################################
8317 # Parse command line.
8318 sub parse_arguments ()
8322 my $ignore_deps = 0;
8327 'version' => \&version,
8329 'libdir=s' => \$libdir,
8330 'gnu' => sub { $strict = 'gnu'; },
8331 'gnits' => sub { $strict = 'gnits'; },
8332 'foreign' => sub { $strict = 'foreign'; },
8333 'cygnus' => \$cygnus,
8334 'include-deps' => sub { $ignore_deps = 0; },
8335 'i|ignore-deps' => sub { $ignore_deps = 1; },
8336 'no-force' => sub { $force_generation = 0; },
8337 'f|force-missing' => \$force_missing,
8338 'a|add-missing' => \$add_missing,
8339 'c|copy' => \$copy_missing,
8340 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8341 'W|warnings=s' => \@warnings,
8344 use Automake::Getopt ();
8345 Automake::Getopt::parse_options %cli_options;
8347 set_strictness ($strict);
8348 my $cli_where = new Automake::Location;
8349 set_global_option ('cygnus', $cli_where) if $cygnus;
8350 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8351 for my $warning (@warnings)
8353 &parse_warnings ('-W', $warning);
8356 return unless @ARGV;
8359 foreach my $arg (@ARGV)
8361 fatal ("empty argument\nTry `$0 --help' for more information")
8364 # Handle $local:$input syntax.
8365 my ($local, @rest) = split (/:/, $arg);
8366 @rest = ("$local.in",) unless @rest;
8367 my $input = locate_am @rest;
8370 push @input_files, $input;
8371 $output_files{$input} = join (':', ($local, @rest));
8375 error "no Automake input file found for `$arg'";
8379 fatal "no input file found among supplied arguments"
8380 if $errspec && ! @input_files;
8384 # handle_makefile ($MAKEFILE_IN)
8385 # ------------------------------
8386 # Deal with $MAKEFILE_IN.
8387 sub handle_makefile ($)
8390 ($am_file = $file) =~ s/\.in$//;
8391 if (! -f ($am_file . '.am'))
8393 error "`$am_file.am' does not exist";
8397 # Any warning setting now local to this Makefile.am.
8400 generate_makefile ($am_file . '.am', $file);
8402 # Back out any warning setting.
8407 # handle_makefiles_serial ()
8408 # --------------------------
8409 # Deal with all makefiles, without threads.
8410 sub handle_makefiles_serial ()
8412 foreach my $file (@input_files)
8414 handle_makefile ($file);
8418 # get_number_of_threads ()
8419 # ------------------------
8420 # Logic for deciding how many worker threads to use.
8421 sub get_number_of_threads
8423 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8426 unless $nthreads =~ /^[0-9]+$/;
8428 # It doesn't make sense to use more threads than makefiles,
8429 my $max_threads = @input_files;
8431 if ($nthreads > $max_threads)
8433 $nthreads = $max_threads;
8438 # handle_makefiles_threaded ($NTHREADS)
8439 # -------------------------------------
8440 # Deal with all makefiles, using threads. The general strategy is to
8441 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8442 # worker threads push back everything that needs serialization:
8443 # * warning and (normal) error messages, for stable stderr output
8444 # order and content (avoiding duplicates, for example),
8445 # * races when installing aux files (and respective messages),
8446 # * races when collecting aux files for distribution.
8448 # The latter requires that the makefile that deals with the aux dir
8449 # files be handled last, done by the master thread.
8450 sub handle_makefiles_threaded ($)
8452 my ($nthreads) = @_;
8454 # The file queue distributes all makefiles, the message queues
8455 # collect all serializations needed for respective files.
8456 my $file_queue = Thread::Queue->new;
8458 foreach my $file (@input_files)
8460 $msg_queues{$file} = Thread::Queue->new;
8463 verb "spawning $nthreads worker threads";
8464 my @threads = (1 .. $nthreads);
8465 foreach my $t (@threads)
8467 $t = threads->new (sub
8469 while (my $file = $file_queue->dequeue)
8471 verb "handling $file";
8472 my $queue = $msg_queues{$file};
8473 setup_channel_queue ($queue, QUEUE_MESSAGE);
8474 $required_conf_file_queue = $queue;
8475 handle_makefile ($file);
8476 $queue->enqueue (undef);
8477 setup_channel_queue (undef, undef);
8478 $required_conf_file_queue = undef;
8484 # Queue all makefiles.
8485 verb "queuing " . @input_files . " input files";
8486 $file_queue->enqueue (@input_files, (undef) x @threads);
8488 # Collect and process serializations.
8489 foreach my $file (@input_files)
8491 verb "dequeuing messages for " . $file;
8492 reset_local_duplicates ();
8493 my $queue = $msg_queues{$file};
8494 while (my $key = $queue->dequeue)
8496 if ($key eq QUEUE_MESSAGE)
8498 pop_channel_queue ($queue);
8500 elsif ($key eq QUEUE_CONF_FILE)
8502 require_queued_file_check_or_copy ($queue);
8506 prog_error "unexpected key $key";
8511 foreach my $t (@threads)
8513 my @exit_thread = $t->join;
8514 $exit_code = $exit_thread[0]
8515 if ($exit_thread[0] > $exit_code);
8519 ################################################################
8521 # Parse the WARNINGS environment variable.
8524 # Parse command line.
8527 $configure_ac = require_configure_ac;
8529 # Do configure.ac scan only once.
8530 scan_autoconf_files;
8535 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8536 if -f 'Makefile.am';
8537 fatal ("no `Makefile.am' found for any configure output$msg");
8540 my $nthreads = get_number_of_threads ();
8542 if ($perl_threads && $nthreads >= 1)
8544 handle_makefiles_threaded ($nthreads);
8548 handle_makefiles_serial ();
8554 ### Setup "GNU" style for perl-mode and cperl-mode.
8556 ## perl-indent-level: 2
8557 ## perl-continued-statement-offset: 2
8558 ## perl-continued-brace-offset: 0
8559 ## perl-brace-offset: 0
8560 ## perl-brace-imaginary-offset: 0
8561 ## perl-label-offset: -2
8562 ## cperl-indent-level: 2
8563 ## cperl-brace-offset: 0
8564 ## cperl-continued-brace-offset: 0
8565 ## cperl-label-offset: -2
8566 ## cperl-extra-newline-before-brace: t
8567 ## cperl-merge-trailing-else: nil
8568 ## cperl-continued-statement-offset: 2