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, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
10 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
13 # This program is free software; you can redistribute it and/or modify
14 # it under the terms of the GNU General Public License as published by
15 # the Free Software Foundation; either version 2, or (at your option)
18 # This program is distributed in the hope that it will be useful,
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 # GNU General Public License for more details.
23 # You should have received a copy of the GNU General Public License
24 # along with this program. If not, see <http://www.gnu.org/licenses/>.
26 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
27 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
28 # Alexandre Duret-Lutz <adl@gnu.org>.
34 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
35 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
37 # Override SHELL. This is required on DJGPP so that system() uses
38 # bash, not COMMAND.COM which doesn't quote arguments properly.
39 # Other systems aren't expected to use $SHELL when Automake
40 # runs, but it should be safe to drop the `if DJGPP' guard if
41 # it turns up other systems need the same thing. After all,
42 # if SHELL is used, ./configure's SHELL is always better than
43 # the user's SHELL (which may be something like tcsh).
44 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
48 struct (# Short name of the language (c, f77...).
50 # Nice name of the language (C, Fortran 77...).
53 # List of configure variables which must be defined.
57 # `pure' is `1' or `'. A `pure' language is one where, if
58 # all the files in a directory are of that language, then we
59 # do not require the C compiler or any code to call it.
64 # Name of the compiling variable (COMPILE).
66 # Content of the compiling variable.
68 # Flag to require compilation without linking (-c).
69 'compile_flag' => "\$",
71 # A subroutine to compute a list of possible extensions of
72 # the product given the input extensions.
73 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
74 'output_extensions' => "\$",
75 # A list of flag variables used in 'compile'.
79 # Any tag to pass to libtool while compiling.
80 'libtool_tag' => "\$",
82 # The file to use when generating rules for this language.
83 # The default is 'depend2'.
86 # Name of the linking variable (LINK).
88 # Content of the linking variable.
91 # Name of the compiler variable (CC).
94 # Name of the linker variable (LD).
96 # Content of the linker variable ($(CC)).
99 # Flag to specify the output file (-o).
100 'output_flag' => "\$",
103 # This is a subroutine which is called whenever we finally
104 # determine the context in which a source file will be
106 '_target_hook' => "\$",
108 # If TRUE, nodist_ sources will be compiled using specific rules
109 # (i.e. not inference rules). The default is FALSE.
110 'nodist_specific' => "\$");
116 if (defined $self->_finish)
118 &{$self->_finish} (@_);
122 sub target_hook ($$$$%)
125 if (defined $self->_target_hook)
127 &{$self->_target_hook} (@_);
134 use Automake::Config;
141 require Thread::Queue;
142 import Thread::Queue;
145 use Automake::General;
147 use Automake::Channels;
148 use Automake::ChannelDefs;
149 use Automake::Configure_ac;
150 use Automake::FileUtils;
151 use Automake::Location;
152 use Automake::Condition qw/TRUE FALSE/;
153 use Automake::DisjConditions;
154 use Automake::Options;
155 use Automake::Version;
156 use Automake::Variable;
157 use Automake::VarDef;
159 use Automake::RuleDef;
160 use Automake::Wrap 'makefile_wrap';
169 # Some regular expressions. One reason to put them here is that it
170 # makes indentation work better in Emacs.
172 # Writing singled-quoted-$-terminated regexes is a pain because
173 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
174 # by a closing quote. Letting perl-mode think the quote is not closed
175 # leads to all sort of misindentations. On the other hand, defining
176 # regexes as double-quoted strings is far less readable. So usually
179 # $REGEX = '^regex_value' . "\$";
181 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
182 my $WHITE_PATTERN = '^\s*' . "\$";
183 my $COMMENT_PATTERN = '^#';
184 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
185 # A rule has three parts: a list of targets, a list of dependencies,
186 # and optionally actions.
188 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
190 # Only recognize leading spaces, not leading tabs. If we recognize
191 # leading tabs here then we need to make the reader smarter, because
192 # otherwise it will think rules like `foo=bar; \' are errors.
193 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
194 # This pattern recognizes a Gnits version id and sets $1 if the
195 # release is an alpha release. We also allow a suffix which can be
196 # used to extend the version number with a "fork" identifier.
197 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
199 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
201 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
203 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
204 my $PATH_PATTERN = '(\w|[+/.-])+';
205 # This will pass through anything not of the prescribed form.
206 my $INCLUDE_PATTERN = ('^include\s+'
207 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
208 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
209 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
211 # Match `-d' as a command-line argument in a string.
212 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
213 # Directories installed during 'install-exec' phase.
214 my $EXEC_DIR_PATTERN =
215 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
217 # Values for AC_CANONICAL_*
218 use constant AC_CANONICAL_BUILD => 1;
219 use constant AC_CANONICAL_HOST => 2;
220 use constant AC_CANONICAL_TARGET => 3;
222 # Values indicating when something should be cleaned.
223 use constant MOSTLY_CLEAN => 0;
224 use constant CLEAN => 1;
225 use constant DIST_CLEAN => 2;
226 use constant MAINTAINER_CLEAN => 3;
229 my @libtool_files = qw(ltmain.sh config.guess config.sub);
230 # ltconfig appears here for compatibility with old versions of libtool.
231 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
233 # Commonly found files we look for and automatically include in
236 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
237 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
238 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
239 depcomp elisp-comp install-sh libversion.in mdate-sh missing
240 mkinstalldirs py-compile texinfo.tex ylwrap),
241 @libtool_files, @libtool_sometimes);
243 # Commonly used files we auto-include, but only sometimes. This list
244 # is used for the --help output only.
245 my @common_sometimes =
246 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
247 configure.ac configure.in stamp-vti);
249 # Standard directories from the GNU Coding Standards, and additional
250 # pkg* directories from Automake. Stored in a hash for fast member check.
251 my %standard_prefix =
252 map { $_ => 1 } (qw(bin data dataroot dvi exec html include info
253 lib libexec lisp localstate man man1 man2 man3
254 man4 man5 man6 man7 man8 man9 oldinclude pdf
255 pkgdatadir pkgincludedir pkglibdir pkglibexecdir
256 ps sbin sharedstate sysconf));
258 # Copyright on generated Makefile.ins.
259 my $gen_copyright = "\
260 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
261 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
263 # This Makefile.in is free software; the Free Software Foundation
264 # gives unlimited permission to copy and/or distribute it,
265 # with or without modifications, as long as this notice is preserved.
267 # This program is distributed in the hope that it will be useful,
268 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
269 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
270 # PARTICULAR PURPOSE.
273 # These constants are returned by the lang_*_rewrite functions.
274 # LANG_SUBDIR means that the resulting object file should be in a
275 # subdir if the source file is. In this case the file name cannot
276 # have `..' components.
277 use constant LANG_IGNORE => 0;
278 use constant LANG_PROCESS => 1;
279 use constant LANG_SUBDIR => 2;
281 # These are used when keeping track of whether an object can be built
282 # by two different paths.
283 use constant COMPILE_LIBTOOL => 1;
284 use constant COMPILE_ORDINARY => 2;
286 # We can't always associate a location to a variable or a rule,
287 # when it's defined by Automake. We use INTERNAL in this case.
288 use constant INTERNAL => new Automake::Location;
290 # Serialization keys for message queues.
291 use constant QUEUE_MESSAGE => "msg";
292 use constant QUEUE_CONF_FILE => "conf file";
293 use constant QUEUE_LOCATION => "location";
294 use constant QUEUE_STRING => "string";
297 ## ---------------------------------- ##
298 ## Variables related to the options. ##
299 ## ---------------------------------- ##
301 # TRUE if we should always generate Makefile.in.
302 my $force_generation = 1;
304 # From the Perl manual.
305 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
307 # TRUE if missing standard files should be installed.
310 # TRUE if we should copy missing files; otherwise symlink if possible.
311 my $copy_missing = 0;
313 # TRUE if we should always update files that we know about.
314 my $force_missing = 0;
317 ## ---------------------------------------- ##
318 ## Variables filled during files scanning. ##
319 ## ---------------------------------------- ##
321 # Name of the configure.ac file.
324 # Files found by scanning configure.ac for LIBOBJS.
327 # Names used in AC_CONFIG_HEADER call.
328 my @config_headers = ();
330 # Names used in AC_CONFIG_LINKS call.
331 my @config_links = ();
333 # Directory where output files go. Actually, output files are
334 # relative to this directory.
335 my $output_directory;
337 # List of Makefile.am's to process, and their corresponding outputs.
338 my @input_files = ();
339 my %output_files = ();
341 # Complete list of Makefile.am's that exist.
342 my @configure_input_files = ();
344 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
346 my @other_input_files = ();
347 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
348 # The keys are the files created by these macros.
349 my %ac_config_files_location = ();
350 # The condition under which AC_CONFIG_FOOS appears.
351 my %ac_config_files_condition = ();
353 # Directory to search for configure-required files. This
354 # will be computed by &locate_aux_dir and can be set using
355 # AC_CONFIG_AUX_DIR in configure.ac.
356 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
357 my $config_aux_dir = '';
358 my $config_aux_dir_set_in_configure_ac = 0;
359 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
361 my $am_config_aux_dir = '';
363 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
365 my $config_libobj_dir = '';
367 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
368 my $seen_gettext = 0;
369 # Whether AM_GNU_GETTEXT([external]) is used.
370 my $seen_gettext_external = 0;
371 # Where AM_GNU_GETTEXT appears.
372 my $ac_gettext_location;
373 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
374 my $seen_gettext_intl = 0;
376 # Lists of tags supported by Libtool.
377 my %libtool_tags = ();
378 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
379 # uses AC_REQUIRE_AUX_FILE.
380 my $libtool_new_api = 0;
382 # Most important AC_CANONICAL_* macro seen so far.
383 my $seen_canonical = 0;
384 # Location of that macro.
385 my $canonical_location;
387 # Where AM_MAINTAINER_MODE appears.
390 # Actual version we've seen.
391 my $package_version = '';
393 # Where version is defined.
394 my $package_version_location;
396 # TRUE if we've seen AM_ENABLE_MULTILIB.
397 my $seen_multilib = 0;
399 # TRUE if we've seen AM_PROG_CC_C_O
402 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
403 my %required_aux_file = ();
405 # Where AM_INIT_AUTOMAKE is called;
406 my $seen_init_automake = 0;
408 # TRUE if we've seen AM_AUTOMAKE_VERSION.
409 my $seen_automake_version = 0;
411 # Hash table of discovered configure substitutions. Keys are names,
412 # values are `FILE:LINE' strings which are used by error message
414 my %configure_vars = ();
416 # Ignored configure substitutions (i.e., variables not to be output in
418 my %ignored_configure_vars = ();
420 # Files included by $configure_ac.
421 my @configure_deps = ();
423 # Greatest timestamp of configure's dependencies.
424 my $configure_deps_greatest_timestamp = 0;
426 # Hash table of AM_CONDITIONAL variables seen in configure.
427 my %configure_cond = ();
429 # This maps extensions onto language names.
430 my %extension_map = ();
432 # List of the DIST_COMMON files we discovered while reading
434 my $configure_dist_common = '';
436 # This maps languages names onto objects.
438 # Maps each linker variable onto a language object.
439 my %link_languages = ();
441 # maps extensions to needed source flags.
442 my %sourceflags = ();
444 # List of targets we must always output.
445 # FIXME: Complete, and remove falsely required targets.
446 my %required_targets =
459 # FIXME: Not required, temporary hacks.
460 # Well, actually they are sort of required: the -recursive
461 # targets will run them anyway...
467 'install-data-am' => 1,
468 'install-exec-am' => 1,
469 'install-html-am' => 1,
470 'install-dvi-am' => 1,
471 'install-pdf-am' => 1,
472 'install-ps-am' => 1,
473 'install-info-am' => 1,
474 'installcheck-am' => 1,
480 # Set to 1 if this run will create the Makefile.in that distributes
481 # the files in config_aux_dir.
482 my $automake_will_process_aux_dir = 0;
484 # The name of the Makefile currently being processed.
488 ################################################################
490 ## ------------------------------------------ ##
491 ## Variables reset by &initialize_per_input. ##
492 ## ------------------------------------------ ##
494 # Basename and relative dir of the input file.
498 # Same but wrt Makefile.in.
502 # Relative path to the top directory.
505 # Greatest timestamp of the output's dependencies (excluding
506 # configure's dependencies).
507 my $output_deps_greatest_timestamp;
509 # These variables are used when generating each Makefile.in.
510 # They hold the Makefile.in until it is ready to be printed.
517 # This is the conditional stack, updated on if/else/endif, and
518 # used to build Condition objects.
521 # This holds the set of included files.
524 # List of dependencies for the obvious targets.
529 # Keys in this hash table are files to delete. The associated
530 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
533 # Keys in this hash table are object files or other files in
534 # subdirectories which need to be removed. This only holds files
535 # which are created by compilations. The value in the hash indicates
536 # when the file should be removed.
537 my %compile_clean_files;
539 # Keys in this hash table are directories where we expect to build a
540 # libtool object. We use this information to decide what directories
542 my %libtool_clean_directories;
544 # Value of `$(SOURCES)', used by tags.am.
546 # Sources which go in the distribution.
549 # This hash maps object file names onto their corresponding source
550 # file names. This is used to ensure that each object is created
551 # by a single source file.
554 # This hash maps object file names onto an integer value representing
555 # whether this object has been built via ordinary compilation or
556 # libtool compilation (the COMPILE_* constants).
557 my %object_compilation_map;
560 # This keeps track of the directories for which we've already
561 # created dirstamp code. Keys are directories, values are stamp files.
562 # Several keys can share the same stamp files if they are equivalent
563 # (as are `.//foo' and `foo').
569 # This is a list of all targets to run during "make dist".
572 # Keep track of all programs declared in this Makefile, without
573 # $(EXEEXT). @substitutions@ are not listed.
577 # Keys in this hash are the basenames of files which must depend on
578 # ansi2knr. Values are either the empty string, or the directory in
579 # which the ANSI source file appears; the directory must have a
583 # This keeps track of which extensions we've seen (that we care
587 # This is random scratch space for the language finish functions.
588 # Don't randomly overwrite it; examine other uses of keys first.
589 my %language_scratch;
591 # We keep track of which objects need special (per-executable)
592 # handling on a per-language basis.
593 my %lang_specific_files;
595 # This is set when `handle_dist' has finished. Once this happens,
596 # we should no longer push on dist_common.
599 # Used to store a set of linkers needed to generate the sources currently
600 # under consideration.
603 # True if we need `LINK' defined. This is a hack.
606 # Was get_object_extension run?
607 # FIXME: This is a hack. a better switch should be found.
608 my $get_object_extension_was_run;
610 # Record each file processed by make_paragraphs.
611 my %transformed_files;
614 ################################################################
616 ## ---------------------------------------------- ##
617 ## Variables not reset by &initialize_per_input. ##
618 ## ---------------------------------------------- ##
620 # Cache each file processed by make_paragraphs.
621 # (This is different from %transformed_files because
622 # %transformed_files is reset for each file while %am_file_cache
623 # it global to the run.)
626 ################################################################
628 # var_SUFFIXES_trigger ($TYPE, $VALUE)
629 # ------------------------------------
630 # This is called by Automake::Variable::define() when SUFFIXES
631 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
632 # The work here needs to be performed as a side-effect of the
633 # macro_define() call because SUFFIXES definitions impact
634 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
636 sub var_SUFFIXES_trigger ($$)
638 my ($type, $value) = @_;
639 accept_extensions (split (' ', $value));
641 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
643 ################################################################
645 ## --------------------------------- ##
646 ## Forward subroutine declarations. ##
647 ## --------------------------------- ##
648 sub register_language (%);
649 sub file_contents_internal ($$$%);
650 sub define_files_variable ($\@$$);
653 # &initialize_per_input ()
654 # ------------------------
655 # (Re)-Initialize per-Makefile.am variables.
656 sub initialize_per_input ()
658 reset_local_duplicates ();
660 $am_file_name = undef;
661 $am_relative_dir = undef;
663 $in_file_name = undef;
664 $relative_dir = undef;
667 $output_deps_greatest_timestamp = 0;
673 $output_trailer = '';
675 Automake::Options::reset;
676 Automake::Variable::reset;
677 Automake::Rule::reset;
688 %compile_clean_files = ();
690 # We always include `.'. This isn't strictly correct.
691 %libtool_clean_directories = ('.' => 1);
697 %object_compilation_map = ();
705 %known_programs = ();
706 %known_libraries= ();
710 %extension_seen = ();
712 %language_scratch = ();
714 %lang_specific_files = ();
716 $handle_dist_run = 0;
720 $get_object_extension_was_run = 0;
722 %transformed_files = ();
726 ################################################################
728 # Initialize our list of languages that are internally supported.
731 register_language ('name' => 'c',
733 'config_vars' => ['CC'],
736 'flags' => ['CFLAGS', 'CPPFLAGS'],
738 'compiler' => 'COMPILE',
739 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
743 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
744 'compile_flag' => '-c',
745 'libtool_tag' => 'CC',
746 'extensions' => ['.c'],
747 '_finish' => \&lang_c_finish);
750 register_language ('name' => 'cxx',
752 'config_vars' => ['CXX'],
753 'linker' => 'CXXLINK',
754 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
756 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
757 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
759 'compiler' => 'CXXCOMPILE',
760 'compile_flag' => '-c',
761 'output_flag' => '-o',
762 'libtool_tag' => 'CXX',
766 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
769 register_language ('name' => 'objc',
770 'Name' => 'Objective C',
771 'config_vars' => ['OBJC'],
772 'linker' => 'OBJCLINK',
773 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
775 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
776 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
778 'compiler' => 'OBJCCOMPILE',
779 'compile_flag' => '-c',
780 'output_flag' => '-o',
784 'extensions' => ['.m']);
786 # Unified Parallel C.
787 register_language ('name' => 'upc',
788 'Name' => 'Unified Parallel C',
789 'config_vars' => ['UPC'],
790 'linker' => 'UPCLINK',
791 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
793 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
794 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
796 'compiler' => 'UPCCOMPILE',
797 'compile_flag' => '-c',
798 'output_flag' => '-o',
802 'extensions' => ['.upc']);
805 register_language ('name' => 'header',
807 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
810 'output_extensions' => sub { return () },
812 '_finish' => sub { });
815 register_language ('name' => 'vala',
817 'config_vars' => ['VALAC'],
819 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
821 'compiler' => 'VALACOMPILE',
822 'extensions' => ['.vala'],
823 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
825 'rule_file' => 'vala',
826 '_finish' => \&lang_vala_finish,
827 '_target_hook' => \&lang_vala_target_hook,
828 'nodist_specific' => 1);
831 register_language ('name' => 'yacc',
833 'config_vars' => ['YACC'],
834 'flags' => ['YFLAGS'],
835 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
837 'compiler' => 'YACCCOMPILE',
838 'extensions' => ['.y'],
839 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
841 'rule_file' => 'yacc',
842 '_finish' => \&lang_yacc_finish,
843 '_target_hook' => \&lang_yacc_target_hook,
844 'nodist_specific' => 1);
845 register_language ('name' => 'yaccxx',
846 'Name' => 'Yacc (C++)',
847 'config_vars' => ['YACC'],
848 'rule_file' => 'yacc',
849 'flags' => ['YFLAGS'],
851 'compiler' => 'YACCCOMPILE',
852 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
853 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
854 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
856 '_finish' => \&lang_yacc_finish,
857 '_target_hook' => \&lang_yacc_target_hook,
858 'nodist_specific' => 1);
861 register_language ('name' => 'lex',
863 'config_vars' => ['LEX'],
864 'rule_file' => 'lex',
865 'flags' => ['LFLAGS'],
866 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
868 'compiler' => 'LEXCOMPILE',
869 'extensions' => ['.l'],
870 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
872 '_finish' => \&lang_lex_finish,
873 '_target_hook' => \&lang_lex_target_hook,
874 'nodist_specific' => 1);
875 register_language ('name' => 'lexxx',
876 'Name' => 'Lex (C++)',
877 'config_vars' => ['LEX'],
878 'rule_file' => 'lex',
879 'flags' => ['LFLAGS'],
880 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
882 'compiler' => 'LEXCOMPILE',
883 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
884 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
886 '_finish' => \&lang_lex_finish,
887 '_target_hook' => \&lang_lex_target_hook,
888 'nodist_specific' => 1);
891 register_language ('name' => 'asm',
892 'Name' => 'Assembler',
893 'config_vars' => ['CCAS', 'CCASFLAGS'],
895 'flags' => ['CCASFLAGS'],
896 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
897 # or anything else required. They can also set CCAS.
898 # Or simply use Preprocessed Assembler.
899 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
901 'compiler' => 'CCASCOMPILE',
902 'compile_flag' => '-c',
903 'output_flag' => '-o',
904 'extensions' => ['.s'],
906 # With assembly we still use the C linker.
907 '_finish' => \&lang_c_finish);
909 # Preprocessed Assembler.
910 register_language ('name' => 'cppasm',
911 'Name' => 'Preprocessed Assembler',
912 'config_vars' => ['CCAS', 'CCASFLAGS'],
915 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
916 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
918 'compiler' => 'CPPASCOMPILE',
919 'compile_flag' => '-c',
920 'output_flag' => '-o',
921 'extensions' => ['.S', '.sx'],
923 # With assembly we still use the C linker.
924 '_finish' => \&lang_c_finish);
927 register_language ('name' => 'f77',
928 'Name' => 'Fortran 77',
929 'config_vars' => ['F77'],
930 'linker' => 'F77LINK',
931 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
932 'flags' => ['FFLAGS'],
933 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
935 'compiler' => 'F77COMPILE',
936 'compile_flag' => '-c',
937 'output_flag' => '-o',
938 'libtool_tag' => 'F77',
942 'extensions' => ['.f', '.for']);
945 register_language ('name' => 'fc',
947 'config_vars' => ['FC'],
948 'linker' => 'FCLINK',
949 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
950 'flags' => ['FCFLAGS'],
951 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
953 'compiler' => 'FCCOMPILE',
954 'compile_flag' => '-c',
955 'output_flag' => '-o',
956 'libtool_tag' => 'FC',
960 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
962 # Preprocessed Fortran
963 register_language ('name' => 'ppfc',
964 'Name' => 'Preprocessed Fortran',
965 'config_vars' => ['FC'],
966 'linker' => 'FCLINK',
967 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
970 'flags' => ['FCFLAGS', 'CPPFLAGS'],
972 'compiler' => 'PPFCCOMPILE',
973 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
974 'compile_flag' => '-c',
975 'output_flag' => '-o',
976 'libtool_tag' => 'FC',
978 'extensions' => ['.F90','.F95', '.F03', '.F08']);
980 # Preprocessed Fortran 77
982 # The current support for preprocessing Fortran 77 just involves
983 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
984 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
985 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
986 # for `make' Version 3.76 Beta' (specifically, from info file
987 # `(make)Catalogue of Rules').
989 # A better approach would be to write an Autoconf test
990 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
991 # Fortran 77 compilers know how to do preprocessing. The Autoconf
992 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
993 # preprocessing capabilities, and then fall back on cpp (if cpp were
995 register_language ('name' => 'ppf77',
996 'Name' => 'Preprocessed Fortran 77',
997 'config_vars' => ['F77'],
998 'linker' => 'F77LINK',
999 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1002 'flags' => ['FFLAGS', 'CPPFLAGS'],
1004 'compiler' => 'PPF77COMPILE',
1005 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
1006 'compile_flag' => '-c',
1007 'output_flag' => '-o',
1008 'libtool_tag' => 'F77',
1010 'extensions' => ['.F']);
1013 register_language ('name' => 'ratfor',
1015 'config_vars' => ['F77'],
1016 'linker' => 'F77LINK',
1017 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1020 'flags' => ['RFLAGS', 'FFLAGS'],
1021 # FIXME also FFLAGS.
1022 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1024 'compiler' => 'RCOMPILE',
1025 'compile_flag' => '-c',
1026 'output_flag' => '-o',
1027 'libtool_tag' => 'F77',
1029 'extensions' => ['.r']);
1032 register_language ('name' => 'java',
1034 'config_vars' => ['GCJ'],
1035 'linker' => 'GCJLINK',
1036 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1038 'flags' => ['GCJFLAGS'],
1039 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1041 'compiler' => 'GCJCOMPILE',
1042 'compile_flag' => '-c',
1043 'output_flag' => '-o',
1044 'libtool_tag' => 'GCJ',
1048 'extensions' => ['.java', '.class', '.zip', '.jar']);
1050 ################################################################
1052 # Error reporting functions.
1054 # err_am ($MESSAGE, [%OPTIONS])
1055 # -----------------------------
1056 # Uncategorized errors about the current Makefile.am.
1059 msg_am ('error', @_);
1062 # err_ac ($MESSAGE, [%OPTIONS])
1063 # -----------------------------
1064 # Uncategorized errors about configure.ac.
1067 msg_ac ('error', @_);
1070 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1071 # ---------------------------------------
1072 # Messages about about the current Makefile.am.
1075 my ($channel, $msg, %opts) = @_;
1076 msg $channel, "${am_file}.am", $msg, %opts;
1079 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1080 # ---------------------------------------
1081 # Messages about about configure.ac.
1084 my ($channel, $msg, %opts) = @_;
1085 msg $channel, $configure_ac, $msg, %opts;
1088 ################################################################
1092 # Return a configure-style substitution using the indicated text.
1093 # We do this to avoid having the substitutions directly in automake.in;
1094 # when we do that they are sometimes removed and this causes confusion
1099 return '@' . $text . '@';
1102 ################################################################
1106 # &backname ($REL-DIR)
1107 # --------------------
1108 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1109 # For instance `src/foo' => `../..'.
1110 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1115 foreach (split (/\//, $file))
1117 next if $_ eq '.' || $_ eq '';
1121 or prog_error ("trying to reverse path `$file' pointing outside tree");
1128 return join ('/', @res) || '.';
1131 ################################################################
1133 # `silent-rules' mode handling functions.
1135 # verbose_var (NAME)
1136 # ------------------
1137 # The public variable stem used to implement `silent-rules'.
1141 return 'AM_V_' . $name;
1144 # verbose_private_var (NAME)
1145 # --------------------------
1146 # The naming policy for the private variables for `silent-rules'.
1147 sub verbose_private_var ($)
1150 return 'am__v_' . $name;
1153 # define_verbose_var (NAME, VAL)
1154 # ------------------------------
1155 # For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1156 sub define_verbose_var ($$)
1158 my ($name, $val) = @_;
1159 my $var = verbose_var ($name);
1160 my $pvar = verbose_private_var ($name);
1161 my $silent_var = $pvar . '_0';
1162 if (option 'silent-rules')
1164 # Using `$V' instead of `$(V)' breaks IRIX make.
1165 define_variable ($var, '$(' . $pvar . '_$(V))', INTERNAL);
1166 define_variable ($pvar . '_', '$(' . $pvar . '_$(AM_DEFAULT_VERBOSITY))', INTERNAL);
1167 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1168 '', INTERNAL, VAR_ASIS)
1169 if (! vardef ($silent_var, TRUE));
1173 # Above should not be needed in the general automake code.
1175 # verbose_flag (NAME)
1176 # -------------------
1177 # Contents of %VERBOSE%: variable to expand before rule command.
1178 sub verbose_flag ($)
1181 return '$(' . verbose_var ($name) . ')'
1182 if (option 'silent-rules');
1186 sub verbose_nodep_flag ($)
1189 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1190 if (option 'silent-rules');
1196 # Contents of %SILENT%: variable to expand to `@' when silent.
1199 return verbose_flag ('at');
1202 # define_verbose_tagvar (NAME)
1203 # ----------------------------
1204 # Engage the needed `silent-rules' machinery for tag NAME.
1205 sub define_verbose_tagvar ($)
1208 if (option 'silent-rules')
1210 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1211 define_verbose_var ('at', '@');
1215 # define_verbose_libtool
1216 # ----------------------
1217 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1218 sub define_verbose_libtool ()
1220 define_verbose_var ('lt', '--silent');
1221 return verbose_flag ('lt');
1225 ################################################################
1228 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1231 my $var = var ('AUTOMAKE_OPTIONS');
1234 if ($var->has_conditional_contents)
1236 msg_var ('unsupported', $var,
1237 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1239 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1242 my ($loc, $value) = @$locvals;
1243 return 1 if (process_option_list ($loc, $value))
1247 # Override portability-recursive warning.
1248 switch_warning ('no-portability-recursive')
1249 if option 'silent-rules';
1251 if ($strictness == GNITS)
1253 set_option ('readme-alpha', INTERNAL);
1254 set_option ('std-options', INTERNAL);
1255 set_option ('check-news', INTERNAL);
1261 # shadow_unconditionally ($varname, $where)
1262 # -----------------------------------------
1263 # Return a $(variable) that contains all possible values
1264 # $varname can take.
1265 # If the VAR wasn't defined conditionally, return $(VAR).
1266 # Otherwise we create an am__VAR_DIST variable which contains
1267 # all possible values, and return $(am__VAR_DIST).
1268 sub shadow_unconditionally ($$)
1270 my ($varname, $where) = @_;
1271 my $var = var $varname;
1272 if ($var->has_conditional_contents)
1274 $varname = "am__${varname}_DIST";
1275 my @files = uniq ($var->value_as_list_recursive);
1276 define_pretty_variable ($varname, TRUE, $where, @files);
1278 return "\$($varname)"
1281 # get_object_extension ($EXTENSION)
1282 # ---------------------------------
1283 # Prefix $EXTENSION with $U if ansi2knr is in use.
1284 sub get_object_extension ($)
1286 my ($extension) = @_;
1288 # Check for automatic de-ANSI-fication.
1289 $extension = '$U' . $extension
1290 if option 'ansi2knr';
1292 $get_object_extension_was_run = 1;
1297 # check_user_variables (@LIST)
1298 # ----------------------------
1299 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1301 sub check_user_variables (@)
1303 my @dont_override = @_;
1304 foreach my $flag (@dont_override)
1306 my $var = var $flag;
1309 for my $cond ($var->conditions->conds)
1311 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1313 msg_cond_var ('gnu', $cond, $flag,
1314 "`$flag' is a user variable, "
1315 . "you should not override it;\n"
1316 . "use `AM_$flag' instead.");
1323 # Call finish function for each language that was used.
1324 sub handle_languages
1326 if (! option 'no-dependencies')
1328 # Include auto-dep code. Don't include it if DEP_FILES would
1330 if (&saw_sources_p (0) && keys %dep_files)
1332 # Set location of depcomp.
1333 &define_variable ('depcomp',
1334 "\$(SHELL) $am_config_aux_dir/depcomp",
1336 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1338 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1340 my @deplist = sort keys %dep_files;
1341 # Generate each `include' individually. Irix 6 make will
1342 # not properly include several files resulting from a
1343 # variable expansion; generating many separate includes
1345 $output_rules .= "\n";
1346 foreach my $iter (@deplist)
1348 $output_rules .= (subst ('AMDEP_TRUE')
1349 . subst ('am__include')
1351 . subst ('am__quote')
1353 . subst ('am__quote')
1357 # Compute the set of directories to remove in distclean-depend.
1358 my @depdirs = uniq (map { dirname ($_) } @deplist);
1359 $output_rules .= &file_contents ('depend',
1360 new Automake::Location,
1361 DEPDIRS => "@depdirs");
1366 &define_variable ('depcomp', '', INTERNAL);
1367 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1372 # Is the C linker needed?
1374 foreach my $ext (sort keys %extension_seen)
1376 next unless $extension_map{$ext};
1378 my $lang = $languages{$extension_map{$ext}};
1380 my $rule_file = $lang->rule_file || 'depend2';
1382 # Get information on $LANG.
1383 my $pfx = $lang->autodep;
1384 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1386 my ($AMDEP, $FASTDEP) =
1387 (option 'no-dependencies' || $lang->autodep eq 'no')
1388 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1390 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1391 my $verbose_nodep = ($AMDEP eq 'FALSE')
1392 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1393 my $silent = silent_flag ();
1395 my %transform = ('EXT' => $ext,
1399 'FASTDEP' => $FASTDEP,
1400 '-c' => $lang->compile_flag || '',
1401 # These are not used, but they need to be defined
1402 # so &transform do not complain.
1404 'DERIVED-EXT' => 'BUG',
1406 VERBOSE => $verbose,
1407 'VERBOSE-NODEP' => $verbose_nodep,
1411 # Generate the appropriate rules for this extension.
1412 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1413 || defined $lang->compile)
1415 # Some C compilers don't support -c -o. Use it only if really
1417 my $output_flag = $lang->output_flag || '';
1420 && $lang->name eq 'c'
1421 && option 'subdir-objects');
1423 # Compute a possible derived extension.
1424 # This is not used by depend2.am.
1425 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1427 # When we output an inference rule like `.c.o:' we
1428 # have two cases to consider: either subdir-objects
1429 # is used, or it is not.
1431 # In the latter case the rule is used to build objects
1432 # in the current directory, and dependencies always
1433 # go into `./$(DEPDIR)/'. We can hard-code this value.
1435 # In the former case the rule can be used to build
1436 # objects in sub-directories too. Dependencies should
1437 # go into the appropriate sub-directories, e.g.,
1438 # `sub/$(DEPDIR)/'. The value of this directory
1439 # needs to be computed on-the-fly.
1441 # DEPBASE holds the name of this directory, plus the
1442 # basename part of the object file (extensions Po, TPo,
1443 # Plo, TPlo will be added later as appropriate). It is
1444 # either hardcoded, or a shell variable (`$depbase') that
1445 # will be computed by the rule.
1447 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1449 file_contents ($rule_file,
1450 new Automake::Location,
1454 'DERIVED-EXT' => $der_ext,
1456 DEPBASE => $depbase,
1459 SOURCEFLAG => $sourceflags{$ext} || '',
1464 COMPILE => '$(' . $lang->compiler . ')',
1465 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1467 SUBDIROBJ => !! option 'subdir-objects');
1470 # Now include code for each specially handled object with this
1472 my %seen_files = ();
1473 foreach my $file (@{$lang_specific_files{$lang->name}})
1475 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1477 # We might see a given object twice, for instance if it is
1478 # used under different conditions.
1479 next if defined $seen_files{$obj};
1480 $seen_files{$obj} = 1;
1482 prog_error ("found " . $lang->name .
1483 " in handle_languages, but compiler not defined")
1484 unless defined $lang->compile;
1486 my $obj_compile = $lang->compile;
1488 # Rewrite each occurrence of `AM_$flag' in the compile
1489 # rule into `${derived}_$flag' if it exists.
1490 for my $flag (@{$lang->flags})
1492 my $val = "${derived}_$flag";
1493 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1497 my $libtool_tag = '';
1498 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1500 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1503 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1504 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1506 my $ltverbose = define_verbose_libtool ();
1508 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1509 . "--mode=compile $obj_compile";
1511 # We _need_ `-o' for per object rules.
1512 my $output_flag = $lang->output_flag || '-o';
1514 my $depbase = dirname ($obj);
1518 unless $depbase eq '';
1519 $depbase .= '$(DEPDIR)/' . basename ($obj);
1521 # Support for deansified files in subdirectories is ugly
1522 # enough to deserve an explanation.
1524 # A Note about normal ansi2knr processing first. On
1526 # AUTOMAKE_OPTIONS = ansi2knr
1527 # bin_PROGRAMS = foo
1528 # foo_SOURCES = foo.c
1530 # we generate rules similar to:
1532 # foo: foo$U.o; link ...
1533 # foo$U.o: foo$U.c; compile ...
1534 # foo_.c: foo.c; ansi2knr ...
1536 # this is fairly compact, and will call ansi2knr depending
1537 # on the value of $U (`' or `_').
1539 # It's harder with subdir sources. On
1541 # AUTOMAKE_OPTIONS = ansi2knr
1542 # bin_PROGRAMS = foo
1543 # foo_SOURCES = sub/foo.c
1545 # we have to create foo_.c in the current directory.
1546 # (Unless the user asks 'subdir-objects'.) This is important
1547 # in case the same file (`foo.c') is compiled from other
1548 # directories with different cpp options: foo_.c would
1549 # be preprocessed for only one set of options if it were
1550 # put in the subdirectory.
1552 # Because foo$U.o must be built from either foo_.c or
1553 # sub/foo.c we can't be as concise as in the first example.
1556 # foo: foo$U.o; link ...
1557 # foo_.o: foo_.c; compile ...
1558 # foo.o: sub/foo.c; compile ...
1559 # foo_.c: foo.c; ansi2knr ...
1561 # This is why we'll now transform $rule_file twice
1562 # if we detect this case.
1563 # A first time we output the compile rule with `$U'
1564 # replaced by `_' and the source directory removed,
1565 # and another time we simply remove `$U'.
1567 # Note that at this point $source (as computed by
1568 # &handle_single_transform) is `sub/foo$U.c'.
1569 # This can be confusing: it can be used as-is when
1570 # subdir-objects is set, otherwise you have to know
1571 # it really means `foo_.c' or `sub/foo.c'.
1572 my $objdir = dirname ($obj);
1573 my $srcdir = dirname ($source);
1574 if ($lang->ansi && $obj =~ /\$U/)
1576 prog_error "`$obj' contains \$U, but `$source' doesn't."
1577 if $source !~ /\$U/;
1579 (my $source_ = $source) =~ s/\$U/_/g;
1580 # Output an additional rule if _.c and .c are not in
1581 # the same directory. (_.c is always in $objdir.)
1582 if ($objdir ne $srcdir)
1584 (my $obj_ = $obj) =~ s/\$U/_/g;
1585 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1586 $source_ = basename ($source_);
1589 file_contents ($rule_file,
1590 new Automake::Location,
1594 DEPBASE => $depbase_,
1597 SOURCEFLAG => $sourceflags{$srcext} || '',
1598 OBJ => "$obj_$myext",
1599 OBJOBJ => "$obj_.obj",
1600 LTOBJ => "$obj_.lo",
1602 COMPILE => $obj_compile,
1603 LTCOMPILE => $obj_ltcompile,
1607 $depbase =~ s/\$U//g;
1608 $source =~ s/\$U//g;
1613 file_contents ($rule_file,
1614 new Automake::Location,
1618 DEPBASE => $depbase,
1621 SOURCEFLAG => $sourceflags{$srcext} || '',
1622 # Use $myext and not `.o' here, in case
1623 # we are actually building a new source
1624 # file -- e.g. via yacc.
1625 OBJ => "$obj$myext",
1626 OBJOBJ => "$obj.obj",
1629 VERBOSE => $verbose,
1630 'VERBOSE-NODEP' => $verbose_nodep,
1632 COMPILE => $obj_compile,
1633 LTCOMPILE => $obj_ltcompile,
1638 # The rest of the loop is done once per language.
1639 next if defined $done{$lang};
1642 # Load the language dependent Makefile chunks.
1643 my %lang = map { uc ($_) => 0 } keys %languages;
1644 $lang{uc ($lang->name)} = 1;
1645 $output_rules .= file_contents ('lang-compile',
1646 new Automake::Location,
1649 # If the source to a program consists entirely of code from a
1650 # `pure' language, for instance C++ or Fortran 77, then we
1651 # don't need the C compiler code. However if we run into
1652 # something unusual then we do generate the C code. There are
1653 # probably corner cases here that do not work properly.
1654 # People linking Java code to Fortran code deserve pain.
1655 $needs_c ||= ! $lang->pure;
1657 define_compiler_variable ($lang)
1658 if ($lang->compile);
1660 define_linker_variable ($lang)
1663 require_variables ("$am_file.am", $lang->Name . " source seen",
1664 TRUE, @{$lang->config_vars});
1666 # Call the finisher.
1669 # Flags listed in `->flags' are user variables (per GNU Standards),
1670 # they should not be overridden in the Makefile...
1671 my @dont_override = @{$lang->flags};
1672 # ... and so is LDFLAGS.
1673 push @dont_override, 'LDFLAGS' if $lang->link;
1675 check_user_variables @dont_override;
1678 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1679 # suffix rule was learned), don't bother with the C stuff. But if
1680 # anything else creeps in, then use it.
1682 if $need_link || suffix_rules_count > 1;
1686 &define_compiler_variable ($languages{'c'})
1687 unless defined $done{$languages{'c'}};
1688 define_linker_variable ($languages{'c'});
1691 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1692 define_verbose_tagvar ('GEN');
1696 # append_exeext { PREDICATE } $MACRO
1697 # ----------------------------------
1698 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1699 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1702 # This is typically used on all filenames of *_PROGRAMS, and filenames
1703 # of TESTS that are programs.
1704 sub append_exeext (&$)
1706 my ($pred, $macro) = @_;
1708 transform_variable_recursively
1709 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1711 my ($subvar, $val, $cond, $full_cond) = @_;
1712 # Append $(EXEEXT) unless the user did it already, or it's a
1715 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1721 # Check to make sure a source defined in LIBOBJS is not explicitly
1722 # mentioned. This is a separate function (as opposed to being inlined
1723 # in handle_source_transform) because it isn't always appropriate to
1725 sub check_libobjs_sources
1727 my ($one_file, $unxformed) = @_;
1729 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1730 'dist_EXTRA_', 'nodist_EXTRA_')
1733 my $varname = $prefix . $one_file . '_SOURCES';
1734 my $var = var ($varname);
1737 @files = $var->value_as_list_recursive;
1739 elsif ($prefix eq '')
1741 @files = ($unxformed . '.c');
1748 foreach my $file (@files)
1750 err_var ($prefix . $one_file . '_SOURCES',
1751 "automatically discovered file `$file' should not" .
1752 " be explicitly mentioned")
1753 if defined $libsources{$file};
1760 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1761 # -----------------------------------------------------------------------------
1762 # Does much of the actual work for handle_source_transform.
1764 # $VAR is the name of the variable that the source filenames come from
1765 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1766 # $DERIVED is the name of resulting executable or library
1767 # $OBJ is the object extension (e.g., `$U.lo')
1768 # $FILE the source file to transform
1769 # %TRANSFORM contains extras arguments to pass to file_contents
1770 # when producing explicit rules
1771 # Result is a list of the names of objects
1772 # %linkers_used will be updated with any linkers needed
1773 sub handle_single_transform ($$$$$%)
1775 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1776 my @files = ($_file);
1778 my $nonansi_obj = $obj;
1779 $nonansi_obj =~ s/\$U//g;
1781 # Turn sources into objects. We use a while loop like this
1782 # because we might add to @files in the loop.
1783 while (scalar @files > 0)
1787 # Configure substitutions in _SOURCES variables are errors.
1790 my $parent_msg = '';
1791 $parent_msg = "\nand is referred to from `$topparent'"
1792 if $topparent ne $var->name;
1794 "`" . $var->name . "' includes configure substitution `$_'"
1795 . $parent_msg . ";\nconfigure " .
1796 "substitutions are not allowed in _SOURCES variables");
1800 # If the source file is in a subdirectory then the `.o' is put
1801 # into the current directory, unless the subdir-objects option
1804 # Split file name into base and extension.
1805 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1807 my $directory = $1 || '';
1811 # We must generate a rule for the object if it requires its own flags.
1813 my ($linker, $object);
1815 # This records whether we've seen a derived source file (e.g.
1817 my $derived_source = 0;
1819 # This holds the `aggregate context' of the file we are
1820 # currently examining. If the file is compiled with
1821 # per-object flags, then it will be the name of the object.
1822 # Otherwise it will be `AM'. This is used by the target hook
1823 # language function.
1824 my $aggregate = 'AM';
1826 $extension = &derive_suffix ($extension, $nonansi_obj);
1828 if ($extension_map{$extension} &&
1829 ($lang = $languages{$extension_map{$extension}}))
1831 # Found the language, so see what it says.
1832 &saw_extension ($extension);
1834 # Do we have per-executable flags for this executable?
1835 my $have_per_exec_flags = 0;
1836 my @peflags = @{$lang->flags};
1837 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1838 foreach my $flag (@peflags)
1840 if (set_seen ("${derived}_$flag"))
1842 $have_per_exec_flags = 1;
1847 # Note: computed subr call. The language rewrite function
1848 # should return one of the LANG_* constants. It could
1849 # also return a list whose first value is such a constant
1850 # and whose second value is a new source extension which
1851 # should be applied. This means this particular language
1852 # generates another source file which we must then process
1854 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1855 my ($r, $source_extension)
1856 = &$subr ($directory, $base, $extension,
1857 $nonansi_obj, $have_per_exec_flags, $var);
1858 # Skip this entry if we were asked not to process it.
1859 next if $r == LANG_IGNORE;
1861 # Now extract linker and other info.
1862 $linker = $lang->linker;
1865 if (defined $source_extension)
1867 $this_obj_ext = $source_extension;
1868 $derived_source = 1;
1872 $this_obj_ext = $obj;
1876 $this_obj_ext = $nonansi_obj;
1878 $object = $base . $this_obj_ext;
1880 if ($have_per_exec_flags)
1882 # We have a per-executable flag in effect for this
1883 # object. In this case we rewrite the object's
1884 # name to ensure it is unique.
1886 # We choose the name `DERIVED_OBJECT' to ensure
1887 # (1) uniqueness, and (2) continuity between
1888 # invocations. However, this will result in a
1889 # name that is too long for losing systems, in
1890 # some situations. So we provide _SHORTNAME to
1893 my $dname = $derived;
1894 my $var = var ($derived . '_SHORTNAME');
1897 # FIXME: should use the same Condition as
1898 # the _SOURCES variable. But this is really
1899 # silly overkill -- nobody should have
1900 # conditional shortnames.
1901 $dname = $var->variable_value;
1903 $object = $dname . '-' . $object;
1905 prog_error ($lang->name . " flags defined without compiler")
1906 if ! defined $lang->compile;
1911 # If rewrite said it was ok, put the object into a
1913 if ($r == LANG_SUBDIR && $directory ne '')
1915 $object = $directory . '/' . $object;
1918 # If the object file has been renamed (because per-target
1919 # flags are used) we cannot compile the file with an
1920 # inference rule: we need an explicit rule.
1922 # If the source is in a subdirectory and the object is in
1923 # the current directory, we also need an explicit rule.
1925 # If both source and object files are in a subdirectory
1926 # (this happens when the subdir-objects option is used),
1927 # then the inference will work.
1929 # The latter case deserves a historical note. When the
1930 # subdir-objects option was added on 1999-04-11 it was
1931 # thought that inferences rules would work for
1932 # subdirectory objects too. Later, on 1999-11-22,
1933 # automake was changed to output explicit rules even for
1934 # subdir-objects. Nobody remembers why, but this occurred
1935 # soon after the merge of the user-dep-gen-branch so it
1936 # might be related. In late 2003 people complained about
1937 # the size of the generated Makefile.ins (libgcj, with
1938 # 2200+ subdir objects was reported to have a 9MB
1939 # Makefile), so we now rely on inference rules again.
1940 # Maybe we'll run across the same issue as in the past,
1941 # but at least this time we can document it. However since
1942 # dependency tracking has evolved it is possible that
1943 # our old problem no longer exists.
1944 # Using inference rules for subdir-objects has been tested
1945 # with GNU make, Solaris make, Ultrix make, BSD make,
1946 # HP-UX make, and OSF1 make successfully.
1948 || ($directory ne '' && ! option 'subdir-objects')
1949 # We must also use specific rules for a nodist_ source
1950 # if its language requests it.
1951 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1953 my $obj_sans_ext = substr ($object, 0,
1954 - length ($this_obj_ext));
1956 if ($directory ne '')
1958 $full_ansi = $directory . '/' . $base . $extension;
1962 $full_ansi = $base . $extension;
1965 if ($lang->ansi && option 'ansi2knr')
1967 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1968 $obj_sans_ext .= '$U';
1971 my @specifics = ($full_ansi, $obj_sans_ext,
1972 # Only use $this_obj_ext in the derived
1973 # source case because in the other case we
1974 # *don't* want $(OBJEXT) to appear here.
1975 ($derived_source ? $this_obj_ext : '.o'),
1978 # If we renamed the object then we want to use the
1979 # per-executable flag name. But if this is simply a
1980 # subdir build then we still want to use the AM_ flag
1984 unshift @specifics, $derived;
1985 $aggregate = $derived;
1989 unshift @specifics, 'AM';
1992 # Each item on this list is a reference to a list consisting
1993 # of four values followed by additional transform flags for
1994 # file_contents. The four values are the derived flag prefix
1995 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1996 # source file, the base name of the output file, and
1997 # the extension for the object file.
1998 push (@{$lang_specific_files{$lang->name}},
1999 [@specifics, %transform]);
2002 elsif ($extension eq $nonansi_obj)
2004 # This is probably the result of a direct suffix rule.
2005 # In this case we just accept the rewrite.
2006 $object = "$base$extension";
2007 $object = "$directory/$object" if $directory ne '';
2012 # No error message here. Used to have one, but it was
2014 # FIXME: we could potentially do more processing here,
2015 # perhaps treating the new extension as though it were a
2016 # new source extension (as above). This would require
2017 # more restructuring than is appropriate right now.
2021 err_am "object `$object' created by `$full' and `$object_map{$object}'"
2022 if (defined $object_map{$object}
2023 && $object_map{$object} ne $full);
2025 my $comp_val = (($object =~ /\.lo$/)
2026 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2027 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2028 if (defined $object_compilation_map{$comp_obj}
2029 && $object_compilation_map{$comp_obj} != 0
2030 # Only see the error once.
2031 && ($object_compilation_map{$comp_obj}
2032 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2033 && $object_compilation_map{$comp_obj} != $comp_val)
2035 err_am "object `$comp_obj' created both with libtool and without";
2037 $object_compilation_map{$comp_obj} |= $comp_val;
2041 # Let the language do some special magic if required.
2042 $lang->target_hook ($aggregate, $object, $full, %transform);
2045 if ($derived_source)
2047 prog_error ($lang->name . " has automatic dependency tracking")
2048 if $lang->autodep ne 'no';
2049 # Make sure this new source file is handled next. That will
2050 # make it appear to be at the right place in the list.
2051 unshift (@files, $object);
2052 # Distribute derived sources unless the source they are
2053 # derived from is not.
2054 &push_dist_common ($object)
2055 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2059 $linkers_used{$linker} = 1;
2061 push (@result, $object);
2063 if (! defined $object_map{$object})
2066 $object_map{$object} = $full;
2068 # If resulting object is in subdir, we need to make
2069 # sure the subdir exists at build time.
2070 if ($object =~ /\//)
2072 # FIXME: check that $DIRECTORY is somewhere in the
2075 # For Java, the way we're handling it right now, a
2076 # `..' component doesn't make sense.
2077 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2079 err_am "`$full' should not contain a `..' component";
2082 # Make sure object is removed by `make mostlyclean'.
2083 $compile_clean_files{$object} = MOSTLY_CLEAN;
2084 # If we have a libtool object then we also must remove
2086 if ($object =~ /\.lo$/)
2088 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2089 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2091 # Remove any libtool object in this directory.
2092 $libtool_clean_directories{$directory} = 1;
2095 push (@dep_list, require_build_directory ($directory));
2097 # If we're generating dependencies, we also want
2098 # to make sure that the appropriate subdir of the
2099 # .deps directory is created.
2101 require_build_directory ($directory . '/$(DEPDIR)'))
2102 unless option 'no-dependencies';
2105 &pretty_print_rule ($object . ':', "\t", @dep_list)
2106 if scalar @dep_list > 0;
2109 # Transform .o or $o file into .P file (for automatic
2111 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2112 # might fail over them in an include statement.
2113 # Leading double slashes may be special, as per Posix, so deal
2114 # with them carefully.
2115 if ($lang && $lang->autodep ne 'no')
2117 my $depfile = $object;
2118 $depfile =~ s/\.([^.]*)$/.P$1/;
2119 $depfile =~ s/\$\(OBJEXT\)$/o/;
2120 my $maybe_extra_leading_slash = '';
2121 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2122 $depfile =~ s,/+,/,g;
2123 my $basename = basename ($depfile);
2124 # This might make $dirname empty, but we account for that below.
2125 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2126 $dirname = $maybe_extra_leading_slash . $dirname;
2127 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2136 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2137 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2138 # ---------------------------------------------------------------------------
2139 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2142 # $VAR is the name of the _SOURCES variable
2143 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2144 # it will be generated and returned).
2145 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2146 # work done to determine the linker will be).
2147 # $ONE_FILE is the canonical (transformed) name of object to build
2148 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2149 # $TOPPARENT is the _SOURCES variable being processed.
2150 # $WHERE context into which this definition is done
2151 # %TRANSFORM extra arguments to pass to file_contents when producing
2154 # Result is a pair ($LINKER, $OBJVAR):
2155 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2156 sub define_objects_from_sources ($$$$$$$%)
2158 my ($var, $objvar, $nodefine, $one_file,
2159 $obj, $topparent, $where, %transform) = @_;
2161 my $needlinker = "";
2163 transform_variable_recursively
2164 ($var, $objvar, 'am__objects', $nodefine, $where,
2165 # The transform code to run on each filename.
2167 my ($subvar, $val, $cond, $full_cond) = @_;
2168 my @trans = handle_single_transform ($subvar, $topparent,
2169 $one_file, $obj, $val,
2171 $needlinker = "true" if @trans;
2179 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2180 # -----------------------------------------------------------------------------
2181 # Handle SOURCE->OBJECT transform for one program or library.
2183 # canonical (transformed) name of target to build
2184 # actual target of object to build
2185 # object extension (i.e., either `.o' or `$o')
2186 # location of the source variable
2187 # extra arguments to pass to file_contents when producing rules
2188 # Return the name of the linker variable that must be used.
2189 # Empty return means just use `LINK'.
2190 sub handle_source_transform ($$$$%)
2192 # one_file is canonical name. unxformed is given name. obj is
2194 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2198 # No point in continuing if _OBJECTS is defined.
2199 return if reject_var ($one_file . '_OBJECTS',
2200 $one_file . '_OBJECTS should not be defined');
2205 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2206 'dist_EXTRA_', 'nodist_EXTRA_')
2208 my $varname = $prefix . $one_file . "_SOURCES";
2209 my $var = var $varname;
2212 # We are going to define _OBJECTS variables using the prefix.
2213 # Then we glom them all together. So we can't use the null
2214 # prefix here as we need it later.
2215 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2217 # Keep track of which prefixes we saw.
2218 $used_pfx{$xpfx} = 1
2219 unless $prefix =~ /EXTRA_/;
2221 push @sources, "\$($varname)";
2222 push @dist_sources, shadow_unconditionally ($varname, $where)
2223 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2226 define_objects_from_sources ($varname,
2227 $xpfx . $one_file . '_OBJECTS',
2228 $prefix =~ /EXTRA_/,
2229 $one_file, $obj, $varname, $where,
2230 DIST_SOURCE => ($prefix !~ /^nodist_/),
2235 $linker ||= &resolve_linker (%linkers_used);
2238 my @keys = sort keys %used_pfx;
2239 if (scalar @keys == 0)
2241 # The default source for libfoo.la is libfoo.c, but for
2242 # backward compatibility we first look at libfoo_la.c,
2243 # if no default source suffix is given.
2244 my $old_default_source = "$one_file.c";
2245 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2246 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2247 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2248 if $default_source_ext =~ /[\t ]/;
2249 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2250 if ($old_default_source ne $default_source
2252 && (rule $old_default_source
2253 || rule '$(srcdir)/' . $old_default_source
2254 || rule '${srcdir}/' . $old_default_source
2255 || -f $old_default_source))
2257 my $loc = $where->clone;
2259 msg ('obsolete', $loc,
2260 "the default source for `$unxformed' has been changed "
2261 . "to `$default_source'.\n(Using `$old_default_source' for "
2262 . "backward compatibility.)");
2263 $default_source = $old_default_source;
2265 # If a rule exists to build this source with a $(srcdir)
2266 # prefix, use that prefix in our variables too. This is for
2267 # the sake of BSD Make.
2268 if (rule '$(srcdir)/' . $default_source
2269 || rule '${srcdir}/' . $default_source)
2271 $default_source = '$(srcdir)/' . $default_source;
2274 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2275 push (@sources, $default_source);
2276 push (@dist_sources, $default_source);
2280 handle_single_transform ($one_file . '_SOURCES',
2281 $one_file . '_SOURCES',
2283 $default_source, %transform);
2284 $linker ||= &resolve_linker (%linkers_used);
2285 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2289 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2290 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2293 # If we want to use `LINK' we must make sure it is defined.
2303 # handle_lib_objects ($XNAME, $VAR)
2304 # ---------------------------------
2305 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2306 # Also, generate _DEPENDENCIES variable if appropriate.
2308 # transformed name of object being built, or empty string if no object
2309 # name of _LDADD/_LIBADD-type variable to examine
2310 # Returns 1 if LIBOBJS seen, 0 otherwise.
2311 sub handle_lib_objects
2313 my ($xname, $varname) = @_;
2315 my $var = var ($varname);
2316 prog_error "handle_lib_objects: `$varname' undefined"
2318 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2319 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2320 my $prefix = $1 || 'AM_';
2322 my $seen_libobjs = 0;
2325 transform_variable_recursively
2326 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2328 # Transformation function, run on each filename.
2330 my ($subvar, $val, $cond, $full_cond) = @_;
2334 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2335 if ($val !~ /^-[lL]/ &&
2336 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2337 # for Libtool libraries or programs. (Actually we are a bit
2338 # lax here since this code also applies to non-libtool
2339 # libraries or programs, for which -dlopen and -dlopreopen
2340 # are pure nonsense. Diagnosing this doesn't seem very
2341 # important: the developer will quickly get complaints from
2343 $val !~ /^-dl(?:pre)?open$/ &&
2344 # Only get this error once.
2348 # FIXME: should display a stack of nested variables
2349 # as context when $var != $subvar.
2350 err_var ($var, "linker flags such as `$val' belong in "
2351 . "`${prefix}LDFLAGS");
2355 elsif ($val !~ /^\@.*\@$/)
2357 # Assume we have a file of some sort, and output it into the
2358 # dependency variable. Autoconf substitutions are not output;
2359 # rarely is a new dependency substituted into e.g. foo_LDADD
2360 # -- but bad things (e.g. -lX11) are routinely substituted.
2361 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2362 # and handled specially below.
2365 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2367 handle_LIBOBJS ($subvar, $cond, $1);
2371 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2373 handle_ALLOCA ($subvar, $cond, $1);
2382 return $seen_libobjs;
2385 # handle_LIBOBJS_or_ALLOCA ($VAR)
2386 # -------------------------------
2387 # Definitions common to LIBOBJS and ALLOCA.
2388 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2389 sub handle_LIBOBJS_or_ALLOCA ($)
2395 # If LIBOBJS files must be built in another directory we have
2396 # to define LIBOBJDIR and ensure the files get cleaned.
2397 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2398 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2399 if ($config_libobj_dir
2400 && $relative_dir ne $config_libobj_dir)
2402 if (option 'subdir-objects')
2404 # In the top-level Makefile we do not use $(top_builddir), because
2405 # we are already there, and since the targets are built without
2406 # a $(top_builddir), it helps BSD Make to match them with
2408 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2409 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2410 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2411 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2412 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2413 # be created by libtool as a side-effect of creating LTLIBOBJS).
2414 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2418 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2419 . " `subdir-objects' is not set");
2426 sub handle_LIBOBJS ($$$)
2428 my ($var, $cond, $lt) = @_;
2429 my $myobjext = $lt ? 'lo' : 'o';
2432 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2433 if ! keys %libsources;
2435 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2437 foreach my $iter (keys %libsources)
2439 if ($iter =~ /\.[cly]$/)
2441 &saw_extension ($&);
2442 &saw_extension ('.c');
2445 if ($iter =~ /\.h$/)
2447 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2449 elsif ($iter ne 'alloca.c')
2451 my $rewrite = $iter;
2452 $rewrite =~ s/\.c$/.P$myobjext/;
2453 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2454 $rewrite = "^" . quotemeta ($iter) . "\$";
2455 # Only require the file if it is not a built source.
2456 my $bs = var ('BUILT_SOURCES');
2457 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2459 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2465 sub handle_ALLOCA ($$$)
2467 my ($var, $cond, $lt) = @_;
2468 my $myobjext = $lt ? 'lo' : 'o';
2470 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2472 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2473 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2474 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2475 &saw_extension ('.c');
2478 # Canonicalize the input parameter
2482 $string =~ tr/A-Za-z0-9_\@/_/c;
2486 # Canonicalize a name, and check to make sure the non-canonical name
2487 # is never used. Returns canonical name. Arguments are name and a
2488 # list of suffixes to check for.
2489 sub check_canonical_spelling
2491 my ($name, @suffixes) = @_;
2493 my $xname = &canonicalize ($name);
2494 if ($xname ne $name)
2496 foreach my $xt (@suffixes)
2498 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2508 # Set up the compile suite.
2509 sub handle_compile ()
2512 unless $get_object_extension_was_run;
2515 my $default_includes = '';
2516 if (! option 'nostdinc')
2518 my @incs = ('-I.', subst ('am__isrc'));
2520 my $var = var 'CONFIG_HEADER';
2523 foreach my $hdr (split (' ', $var->variable_value))
2525 push @incs, '-I' . dirname ($hdr);
2528 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2529 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2530 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2531 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2532 # to just put @am__isrc@ right after `-I.', without a space.
2533 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2536 my (@mostly_rms, @dist_rms);
2537 foreach my $item (sort keys %compile_clean_files)
2539 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2541 push (@mostly_rms, "\t-rm -f $item");
2543 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2545 push (@dist_rms, "\t-rm -f $item");
2549 prog_error 'invalid entry in %compile_clean_files';
2553 my ($coms, $vars, $rules) =
2554 &file_contents_internal (1, "$libdir/am/compile.am",
2555 new Automake::Location,
2556 ('DEFAULT_INCLUDES' => $default_includes,
2557 'MOSTLYRMS' => join ("\n", @mostly_rms),
2558 'DISTRMS' => join ("\n", @dist_rms)));
2559 $output_vars .= $vars;
2560 $output_rules .= "$coms$rules";
2562 # Check for automatic de-ANSI-fication.
2563 if (option 'ansi2knr')
2565 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2566 my $ansi2knr_dir = '';
2568 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2569 TRUE, "ANSI2KNR", "U");
2571 # topdir is where ansi2knr should be.
2572 if ($ansi2knr_filename eq 'ansi2knr')
2574 # Only require ansi2knr files if they should appear in
2576 require_file ($ansi2knr_where, FOREIGN,
2577 'ansi2knr.c', 'ansi2knr.1');
2579 # ansi2knr needs to be built before subdirs, so unshift it
2580 # rather then pushing it.
2581 unshift (@all, '$(ANSI2KNR)');
2585 $ansi2knr_dir = dirname ($ansi2knr_filename);
2588 $output_rules .= &file_contents ('ansi2knr',
2589 new Automake::Location,
2590 'ANSI2KNR-DIR' => $ansi2knr_dir);
2597 # Handle libtool rules.
2600 return unless var ('LIBTOOL');
2602 # Libtool requires some files, but only at top level.
2603 # (Starting with Libtool 2.0 we do not have to bother. These
2604 # requirements are done with AC_REQUIRE_AUX_FILE.)
2605 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2606 if $relative_dir eq '.' && ! $libtool_new_api;
2609 foreach my $item (sort keys %libtool_clean_directories)
2611 my $dir = ($item eq '.') ? '' : "$item/";
2612 # .libs is for Unix, _libs for DOS.
2613 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2616 check_user_variables 'LIBTOOLFLAGS';
2618 # Output the libtool compilation rules.
2619 $output_rules .= &file_contents ('libtool',
2620 new Automake::Location,
2621 LTRMS => join ("\n", @libtool_rms));
2624 # handle_programs ()
2625 # ------------------
2626 # Handle C programs.
2629 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2630 'bin', 'sbin', 'libexec', 'pkglib',
2632 return if ! @proglist;
2634 my $seen_global_libobjs =
2635 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2637 foreach my $pair (@proglist)
2639 my ($where, $one_file) = @$pair;
2641 my $seen_libobjs = 0;
2642 my $obj = get_object_extension '.$(OBJEXT)';
2644 $known_programs{$one_file} = $where;
2646 # Canonicalize names and check for misspellings.
2647 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2648 '_SOURCES', '_OBJECTS',
2651 $where->push_context ("while processing program `$one_file'");
2652 $where->set (INTERNAL->get);
2654 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2655 NONLIBTOOL => 1, LIBTOOL => 0);
2657 if (var ($xname . "_LDADD"))
2659 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2663 # User didn't define prog_LDADD override. So do it.
2664 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2666 # This does a bit too much work. But we need it to
2667 # generate _DEPENDENCIES when appropriate.
2670 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2674 reject_var ($xname . '_LIBADD',
2675 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2677 set_seen ($xname . '_DEPENDENCIES');
2678 set_seen ($xname . '_LDFLAGS');
2680 # Determine program to use for link.
2681 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2682 $vlink = verbose_flag ($vlink || 'GEN');
2684 # If the resulting program lies into a subdirectory,
2685 # make sure this directory will exist.
2686 my $dirstamp = require_build_directory_maybe ($one_file);
2688 $libtool_clean_directories{dirname ($one_file)} = 1;
2690 $output_rules .= &file_contents ('program',
2692 PROGRAM => $one_file,
2696 DIRSTAMP => $dirstamp,
2697 EXEEXT => '$(EXEEXT)');
2699 if ($seen_libobjs || $seen_global_libobjs)
2701 if (var ($xname . '_LDADD'))
2703 &check_libobjs_sources ($xname, $xname . '_LDADD');
2705 elsif (var ('LDADD'))
2707 &check_libobjs_sources ($xname, 'LDADD');
2714 # handle_libraries ()
2715 # -------------------
2717 sub handle_libraries
2719 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2720 'lib', 'pkglib', 'noinst', 'check');
2721 return if ! @liblist;
2723 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2728 my $var = rvar ($prefix[0] . '_LIBRARIES');
2729 $var->requires_variables ('library used', 'RANLIB');
2732 &define_variable ('AR', 'ar', INTERNAL);
2733 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2734 &define_verbose_tagvar ('AR');
2736 foreach my $pair (@liblist)
2738 my ($where, $onelib) = @$pair;
2740 my $seen_libobjs = 0;
2741 # Check that the library fits the standard naming convention.
2742 my $bn = basename ($onelib);
2743 if ($bn !~ /^lib.*\.a$/)
2745 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2746 my $suggestion = dirname ($onelib) . "/$bn";
2747 $suggestion =~ s|^\./||g;
2748 msg ('error-gnu/warn', $where,
2749 "`$onelib' is not a standard library name\n"
2750 . "did you mean `$suggestion'?")
2753 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2755 $where->push_context ("while processing library `$onelib'");
2756 $where->set (INTERNAL->get);
2758 my $obj = get_object_extension '.$(OBJEXT)';
2760 # Canonicalize names and check for misspellings.
2761 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2762 '_OBJECTS', '_DEPENDENCIES',
2765 if (! var ($xlib . '_AR'))
2767 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2770 # Generate support for conditional object inclusion in
2772 if (var ($xlib . '_LIBADD'))
2774 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2781 &define_variable ($xlib . "_LIBADD", '', $where);
2784 reject_var ($xlib . '_LDADD',
2785 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2787 # Make sure we at look at this.
2788 set_seen ($xlib . '_DEPENDENCIES');
2790 &handle_source_transform ($xlib, $onelib, $obj, $where,
2791 NONLIBTOOL => 1, LIBTOOL => 0);
2793 # If the resulting library lies into a subdirectory,
2794 # make sure this directory will exist.
2795 my $dirstamp = require_build_directory_maybe ($onelib);
2796 my $verbose = verbose_flag ('AR');
2797 my $silent = silent_flag ();
2799 $output_rules .= &file_contents ('library',
2801 VERBOSE => $verbose,
2805 DIRSTAMP => $dirstamp);
2809 if (var ($xlib . '_LIBADD'))
2811 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2818 # handle_ltlibraries ()
2819 # ---------------------
2820 # Handle shared libraries.
2821 sub handle_ltlibraries
2823 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2824 'noinst', 'lib', 'pkglib', 'check');
2825 return if ! @liblist;
2827 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2832 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2833 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2837 my %instsubdirs = ();
2839 my %liblocations = (); # Location (in Makefile.am) of each library.
2841 foreach my $key (@prefix)
2843 # Get the installation directory of each library.
2845 my $strip_subdir = 1;
2846 if ($dir =~ /^nobase_/)
2848 $dir =~ s/^nobase_//;
2851 my $var = rvar ($key . '_LTLIBRARIES');
2853 # We reject libraries which are installed in several places
2854 # in the same condition, because we can only specify one
2856 $var->traverse_recursively
2859 my ($var, $val, $cond, $full_cond) = @_;
2860 my $hcond = $full_cond->human;
2861 my $where = $var->rdef ($cond)->location;
2863 $ldir = '/' . dirname ($val)
2864 if (!$strip_subdir);
2865 # A library cannot be installed in different directories
2866 # in overlapping conditions.
2867 if (exists $instconds{$val})
2870 $instconds{$val}->ambiguous_p ($val, $full_cond);
2874 error ($where, $msg, partial => 1);
2875 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2876 $dirtxt = "built for `$dir'"
2877 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2879 $full_cond->true ? "" : " in condition $hcond";
2881 error ($where, "`$val' should be $dirtxt$dircond ...",
2884 my $hacond = $acond->human;
2885 my $adir = $instdirs{$val}{$acond};
2886 my $adirtxt = "installed in `$adir'";
2887 $adirtxt = "built for `$adir'"
2888 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2889 || $adir eq 'check');
2890 my $adircond = $acond->true ? "" : " in condition $hacond";
2892 my $onlyone = ($dir ne $adir) ?
2893 ("\nLibtool libraries can be built for only one "
2894 . "destination.") : "";
2896 error ($liblocations{$val}{$acond},
2897 "... and should also be $adirtxt$adircond.$onlyone");
2903 $instconds{$val} = new Automake::DisjConditions;
2905 $instdirs{$val}{$full_cond} = $dir;
2906 $instsubdirs{$val}{$full_cond} = $ldir;
2907 $liblocations{$val}{$full_cond} = $where;
2908 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2914 skip_ac_subst => 1);
2917 foreach my $pair (@liblist)
2919 my ($where, $onelib) = @$pair;
2921 my $seen_libobjs = 0;
2922 my $obj = get_object_extension '.lo';
2924 # Canonicalize names and check for misspellings.
2925 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2926 '_SOURCES', '_OBJECTS',
2929 # Check that the library fits the standard naming convention.
2930 my $libname_rx = '^lib.*\.la';
2931 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2932 my $ldvar2 = var ('LDFLAGS');
2933 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2934 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2936 # Relax name checking for libtool modules.
2937 $libname_rx = '\.la';
2940 my $bn = basename ($onelib);
2941 if ($bn !~ /$libname_rx$/)
2943 my $type = 'library';
2944 if ($libname_rx eq '\.la')
2946 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2951 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2953 my $suggestion = dirname ($onelib) . "/$bn";
2954 $suggestion =~ s|^\./||g;
2955 msg ('error-gnu/warn', $where,
2956 "`$onelib' is not a standard libtool $type name\n"
2957 . "did you mean `$suggestion'?")
2960 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2962 $where->push_context ("while processing Libtool library `$onelib'");
2963 $where->set (INTERNAL->get);
2965 # Make sure we look at these.
2966 set_seen ($xlib . '_LDFLAGS');
2967 set_seen ($xlib . '_DEPENDENCIES');
2969 # Generate support for conditional object inclusion in
2971 if (var ($xlib . '_LIBADD'))
2973 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2980 &define_variable ($xlib . "_LIBADD", '', $where);
2983 reject_var ("${xlib}_LDADD",
2984 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2987 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2988 NONLIBTOOL => 0, LIBTOOL => 1);
2990 # Determine program to use for link.
2991 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2992 $vlink = verbose_flag ($vlink || 'GEN');
2994 my $rpathvar = "am_${xlib}_rpath";
2995 my $rpath = "\$($rpathvar)";
2996 foreach my $rcond ($instconds{$onelib}->conds)
2999 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
3000 || $instdirs{$onelib}{$rcond} eq 'noinst'
3001 || $instdirs{$onelib}{$rcond} eq 'check')
3003 # It's an EXTRA_ library, so we can't specify -rpath,
3004 # because we don't know where the library will end up.
3005 # The user probably knows, but generally speaking automake
3006 # doesn't -- and in fact configure could decide
3007 # dynamically between two different locations.
3012 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
3013 $val .= $instsubdirs{$onelib}{$rcond}
3014 if defined $instsubdirs{$onelib}{$rcond};
3018 # If $rcond is true there is only one condition and
3019 # there is no point defining an helper variable.
3024 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3028 # If the resulting library lies into a subdirectory,
3029 # make sure this directory will exist.
3030 my $dirstamp = require_build_directory_maybe ($onelib);
3032 # Remember to cleanup .libs/ in this directory.
3033 my $dirname = dirname $onelib;
3034 $libtool_clean_directories{$dirname} = 1;
3036 $output_rules .= &file_contents ('ltlibrary',
3038 LTLIBRARY => $onelib,
3039 XLTLIBRARY => $xlib,
3043 DIRSTAMP => $dirstamp);
3046 if (var ($xlib . '_LIBADD'))
3048 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3054 # See if any _SOURCES variable were misspelled.
3057 # It is ok if the user sets this particular variable.
3058 set_seen 'AM_LDFLAGS';
3060 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3062 foreach my $var (variables $primary)
3064 my $varname = $var->name;
3065 # A configure variable is always legitimate.
3066 next if exists $configure_vars{$varname};
3068 for my $cond ($var->conditions->conds)
3070 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3071 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3072 . " program or\nlibrary has `$1' as canonical name"
3073 . " (possible typo)")
3074 unless $var->rdef ($cond)->seen;
3084 # NOTE we no longer automatically clean SCRIPTS, because it is
3085 # useful to sometimes distribute scripts verbatim. This happens
3086 # e.g. in Automake itself.
3087 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3088 'bin', 'sbin', 'libexec', 'pkgdata',
3095 ## ------------------------ ##
3096 ## Handling Texinfo files. ##
3097 ## ------------------------ ##
3099 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3100 # &scan_texinfo_file ($FILENAME)
3101 # ------------------------------
3102 # $OUTFILE - name of the info file produced by $FILENAME.
3103 # $VFILE - name of the version.texi file used (undef if none).
3104 # @CLEAN_FILES - list of byproducts (indexes etc.)
3105 sub scan_texinfo_file ($)
3107 my ($filename) = @_;
3109 # Some of the following extensions are always created, no matter
3110 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3111 # are only created when they are used. We used to scan $FILENAME
3112 # for their use, but that is not enough: they could be used in
3113 # included files. We can't scan included files because we don't
3114 # know the include path. Therefore we always erase these files, no
3115 # matter whether they are used or not.
3117 # (tmp is only created if an @macro is used and a certain e-TeX
3118 # feature is not available.)
3119 my %clean_suffixes =
3120 map { $_ => 1 } (qw(aux log toc tmp
3126 pg pgs)); # grep 'new.*index' texinfo.tex
3128 my $texi = new Automake::XFile "< $filename";
3129 verb "reading $filename";
3131 my ($outfile, $vfile);
3132 while ($_ = $texi->getline)
3134 if (/^\@setfilename +(\S+)/)
3136 # Honor only the first @setfilename. (It's possible to have
3137 # more occurrences later if the manual shows examples of how
3138 # to use @setfilename...)
3142 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3144 error ("$filename:$.",
3145 "output `$outfile' has unrecognized extension");
3149 # A "version.texi" file is actually any file whose name matches
3151 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3156 # Try to find new or unused indexes.
3158 # Creating a new category of index.
3159 elsif (/^\@def(code)?index (\w+)/)
3161 $clean_suffixes{$2} = 1;
3162 $clean_suffixes{"$2s"} = 1;
3165 # Merging an index into an another.
3166 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3168 delete $clean_suffixes{"$2s"};
3169 $clean_suffixes{"$3s"} = 1;
3176 err_am "`$filename' missing \@setfilename";
3180 my $infobase = basename ($filename);
3181 $infobase =~ s/\.te?xi(nfo)?$//;
3182 return ($outfile, $vfile,
3183 map { "$infobase.$_" } (sort keys %clean_suffixes));
3187 # ($DIRSTAMP, @CLEAN_FILES)
3188 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3189 # ------------------------------------------------------------------
3190 # SOURCE - the source Texinfo file
3191 # DEST - the destination Info file
3192 # INSRC - whether DEST should be built in the source tree
3193 # DEPENDENCIES - known dependencies
3194 sub output_texinfo_build_rules ($$$@)
3196 my ($source, $dest, $insrc, @deps) = @_;
3198 # Split `a.texi' into `a' and `.texi'.
3199 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3200 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3205 # We can output two kinds of rules: the "generic" rules use Make
3206 # suffix rules and are appropriate when $source and $dest do not lie
3207 # in a sub-directory; the "specific" rules are needed in the other
3210 # The former are output only once (this is not really apparent here,
3211 # but just remember that some logic deeper in Automake will not
3212 # output the same rule twice); while the later need to be output for
3213 # each Texinfo source.
3216 my $sdir = dirname $source;
3217 if ($sdir eq '.' && dirname ($dest) eq '.')
3220 $makeinfoflags = '-I $(srcdir)';
3225 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3228 # A directory can contain two kinds of info files: some built in the
3229 # source tree, and some built in the build tree. The rules are
3230 # different in each case. However we cannot output two different
3231 # set of generic rules. Because in-source builds are more usual, we
3232 # use generic rules in this case and fall back to "specific" rules
3233 # for build-dir builds. (It should not be a problem to invert this
3235 $generic = 0 unless $insrc;
3237 # We cannot use a suffix rule to build info files with an empty
3238 # extension. Otherwise we would output a single suffix inference
3239 # rule, with separate dependencies, as in
3243 # foo.info: foo.texi
3245 # which confuse Solaris make. (See the Autoconf manual for
3246 # details.) Therefore we use a specific rule in this case. This
3247 # applies to info files only (dvi and pdf files always have an
3249 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3251 # If the resulting file lie into a subdirectory,
3252 # make sure this directory will exist.
3253 my $dirstamp = require_build_directory_maybe ($dest);
3255 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3257 $output_rules .= file_contents ('texibuild',
3258 new Automake::Location,
3260 DEST_PREFIX => $dpfx,
3261 DEST_INFO_PREFIX => $dipfx,
3262 DEST_SUFFIX => $dsfx,
3263 DIRSTAMP => $dirstamp,
3264 GENERIC => $generic,
3265 GENERIC_INFO => $generic_info,
3267 MAKEINFOFLAGS => $makeinfoflags,
3270 SOURCE_INFO => ($generic_info
3272 SOURCE_REAL => $source,
3273 SOURCE_SUFFIX => $ssfx,
3275 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3279 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3280 # handle_texinfo_helper ($info_texinfos)
3281 # --------------------------------------
3282 # Handle all Texinfo source; helper for handle_texinfo.
3283 sub handle_texinfo_helper ($)
3285 my ($info_texinfos) = @_;
3286 my (@infobase, @info_deps_list, @texi_deps);
3289 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3291 # Build a regex matching user-cleaned files.
3292 my $d = var 'DISTCLEANFILES';
3293 my $c = var 'CLEANFILES';
3295 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3296 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3297 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3298 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3301 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3303 my $infobase = $texi;
3304 $infobase =~ s/\.(txi|texinfo|texi)$//;
3306 if ($infobase eq $texi)
3308 # FIXME: report line number.
3309 err_am "texinfo file `$texi' has unrecognized extension";
3313 push @infobase, $infobase;
3315 # If 'version.texi' is referenced by input file, then include
3316 # automatic versioning capability.
3317 my ($out_file, $vtexi, @clean_files) =
3318 scan_texinfo_file ("$relative_dir/$texi")
3320 push (@mostly_cleans, @clean_files);
3322 # If the Texinfo source is in a subdirectory, create the
3323 # resulting info in this subdirectory. If it is in the current
3324 # directory, try hard to not prefix "./" because it breaks the
3326 my $outdir = dirname ($texi) . '/';
3327 $outdir = "" if $outdir eq './';
3328 $out_file = $outdir . $out_file;
3330 # Until Automake 1.6.3, .info files were built in the
3331 # source tree. This was an obstacle to the support of
3332 # non-distributed .info files, and non-distributed .texi
3335 # * Non-distributed .texi files is important in some packages
3336 # where .texi files are built at make time, probably using
3337 # other binaries built in the package itself, maybe using
3338 # tools or information found on the build host. Because
3339 # these files are not distributed they are always rebuilt
3340 # at make time; they should therefore not lie in the source
3341 # directory. One plan was to support this using
3342 # nodist_info_TEXINFOS or something similar. (Doing this
3343 # requires some sanity checks. For instance Automake should
3345 # dist_info_TEXINFOS = foo.texi
3346 # nodist_foo_TEXINFOS = included.texi
3347 # because a distributed file should never depend on a
3348 # non-distributed file.)
3350 # * If .texi files are not distributed, then .info files should
3351 # not be distributed either. There are also cases where one
3352 # wants to distribute .texi files, but does not want to
3353 # distribute the .info files. For instance the Texinfo package
3354 # distributes the tool used to build these files; it would
3355 # be a waste of space to distribute them. It's not clear
3356 # which syntax we should use to indicate that .info files should
3357 # not be distributed. Akim Demaille suggested that eventually
3358 # we switch to a new syntax:
3359 # | Maybe we should take some inspiration from what's already
3360 # | done in the rest of Automake. Maybe there is too much
3361 # | syntactic sugar here, and you want
3362 # | nodist_INFO = bar.info
3363 # | dist_bar_info_SOURCES = bar.texi
3364 # | bar_texi_DEPENDENCIES = foo.texi
3365 # | with a bit of magic to have bar.info represent the whole
3366 # | bar*info set. That's a lot more verbose that the current
3367 # | situation, but it is # not new, hence the user has less
3370 # | But there is still too much room for meaningless specs:
3371 # | nodist_INFO = bar.info
3372 # | dist_bar_info_SOURCES = bar.texi
3373 # | dist_PS = bar.ps something-written-by-hand.ps
3374 # | nodist_bar_ps_SOURCES = bar.texi
3375 # | bar_texi_DEPENDENCIES = foo.texi
3376 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3378 # Back to the point, it should be clear that in order to support
3379 # non-distributed .info files, we need to build them in the
3380 # build tree, not in the source tree (non-distributed .texi
3381 # files are less of a problem, because we do not output build
3382 # rules for them). In Automake 1.7 .info build rules have been
3383 # largely cleaned up so that .info files get always build in the
3384 # build tree, even when distributed. The idea was that
3385 # (1) if during a VPATH build the .info file was found to be
3386 # absent or out-of-date (in the source tree or in the
3387 # build tree), Make would rebuild it in the build tree.
3388 # If an up-to-date source-tree of the .info file existed,
3389 # make would not rebuild it in the build tree.
3390 # (2) having two copies of .info files, one in the source tree
3391 # and one (newer) in the build tree is not a problem
3392 # because `make dist' always pick files in the build tree
3394 # However it turned out the be a bad idea for several reasons:
3395 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3396 # like GNU Make on point (1) above. These implementations
3397 # of Make would always rebuild .info files in the build
3398 # tree, even if such files were up to date in the source
3399 # tree. Consequently, it was impossible to perform a VPATH
3400 # build of a package containing Texinfo files using these
3401 # Make implementations.
3402 # (Refer to the Autoconf Manual, section "Limitation of
3403 # Make", paragraph "VPATH", item "target lookup", for
3404 # an account of the differences between these
3406 # * The GNU Coding Standards require these files to be built
3407 # in the source-tree (when they are distributed, that is).
3408 # * Keeping a fresher copy of distributed files in the
3409 # build tree can be annoying during development because
3410 # - if the files is kept under CVS, you really want it
3411 # to be updated in the source tree
3412 # - it is confusing that `make distclean' does not erase
3413 # all files in the build tree.
3415 # Consequently, starting with Automake 1.8, .info files are
3416 # built in the source tree again. Because we still plan to
3417 # support non-distributed .info files at some point, we
3418 # have a single variable ($INSRC) that controls whether
3419 # the current .info file must be built in the source tree
3420 # or in the build tree. Actually this variable is switched
3421 # off for .info files that appear to be cleaned; this is
3422 # for backward compatibility with package such as Texinfo,
3423 # which do things like
3424 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3425 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3426 # # Do not create info files for distribution.
3428 # in order not to distribute .info files.
3429 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3431 my $soutdir = '$(srcdir)/' . $outdir;
3432 $outdir = $soutdir if $insrc;
3434 # If user specified file_TEXINFOS, then use that as explicit
3437 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3439 my $canonical = canonicalize ($infobase);
3440 if (var ($canonical . "_TEXINFOS"))
3442 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3443 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3446 my ($dirstamp, @cfiles) =
3447 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3448 push (@texi_cleans, @cfiles);
3450 push (@info_deps_list, $out_file);
3452 # If a vers*.texi file is needed, emit the rule.
3455 err_am ("`$vtexi', included in `$texi', "
3456 . "also included in `$versions{$vtexi}'")
3457 if defined $versions{$vtexi};
3458 $versions{$vtexi} = $texi;
3460 # We number the stamp-vti files. This is doable since the
3461 # actual names don't matter much. We only number starting
3462 # with the second one, so that the common case looks nice.
3463 my $vti = ($done ? $done : 'vti');
3466 # This is ugly, but it is our historical practice.
3467 if ($config_aux_dir_set_in_configure_ac)
3469 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3474 require_file_with_macro (TRUE, 'info_TEXINFOS',
3475 FOREIGN, 'mdate-sh');
3479 if ($config_aux_dir_set_in_configure_ac)
3481 $conf_dir = "$am_config_aux_dir/";
3485 $conf_dir = '$(srcdir)/';
3487 $output_rules .= file_contents ('texi-vers',
3488 new Automake::Location,
3491 STAMPVTI => "${soutdir}stamp-$vti",
3492 VTEXI => "$soutdir$vtexi",
3494 DIRSTAMP => $dirstamp);
3498 # Handle location of texinfo.tex.
3499 my $need_texi_file = 0;
3501 if (var ('TEXINFO_TEX'))
3503 # The user defined TEXINFO_TEX so assume he knows what he is
3505 $texinfodir = ('$(srcdir)/'
3506 . dirname (variable_value ('TEXINFO_TEX')));
3508 elsif (option 'cygnus')
3510 $texinfodir = '$(top_srcdir)/../texinfo';
3511 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3513 elsif ($config_aux_dir_set_in_configure_ac)
3515 $texinfodir = $am_config_aux_dir;
3516 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3517 $need_texi_file = 2; # so that we require_conf_file later
3521 $texinfodir = '$(srcdir)';
3522 $need_texi_file = 1;
3524 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3526 push (@dist_targets, 'dist-info');
3528 if (! option 'no-installinfo')
3530 # Make sure documentation is made and installed first. Use
3531 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3532 # get run twice during "make all".
3533 unshift (@all, '$(INFO_DEPS)');
3536 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3537 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3538 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3539 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3541 # This next isn't strictly needed now -- the places that look here
3542 # could easily be changed to look in info_TEXINFOS. But this is
3543 # probably better, in case noinst_TEXINFOS is ever supported.
3544 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3546 # Do some error checking. Note that this file is not required
3547 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3549 if ($need_texi_file && ! option 'no-texinfo.tex')
3551 if ($need_texi_file > 1)
3553 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3558 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3563 return (makefile_wrap ("", "\t ", @mostly_cleans),
3564 makefile_wrap ("", "\t ", @texi_cleans),
3565 makefile_wrap ("", "\t ", @maint_cleans));
3571 # Handle all Texinfo source.
3572 sub handle_texinfo ()
3574 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3575 # FIXME: I think this is an obsolete future feature name.
3576 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3578 my $info_texinfos = var ('info_TEXINFOS');
3579 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3582 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3588 $output_rules .= file_contents ('texinfos',
3589 new Automake::Location,
3590 MOSTLYCLEAN => $mostlyclean,
3591 TEXICLEAN => $clean,
3592 MAINTCLEAN => $maintclean,
3593 'LOCAL-TEXIS' => !!$info_texinfos);
3597 # Handle any man pages.
3598 sub handle_man_pages
3600 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3602 # Find all the sections in use. We do this by first looking for
3603 # "standard" sections, and then looking for any additional
3604 # sections used in man_MANS.
3605 my (%sections, %notrans_sections, %trans_sections,
3606 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3607 # We handle nodist_ for uniformity. man pages aren't distributed
3608 # by default so it isn't actually very important.
3609 foreach my $npfx ('', 'notrans_')
3611 foreach my $pfx ('', 'dist_', 'nodist_')
3613 # Add more sections as needed.
3614 foreach my $section ('0'..'9', 'n', 'l')
3616 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3619 $sections{$section} = 1;
3620 $varname = '$(' . $varname . ')';
3621 if ($npfx eq 'notrans_')
3623 $notrans_sections{$section} = 1;
3624 $notrans_sect_vars{$varname} = 1;
3628 $trans_sections{$section} = 1;
3629 $trans_sect_vars{$varname} = 1;
3632 &push_dist_common ($varname)
3637 my $varname = $npfx . $pfx . 'man_MANS';
3638 my $var = var ($varname);
3641 foreach ($var->value_as_list_recursive)
3643 # A page like `foo.1c' goes into man1dir.
3644 if (/\.([0-9a-z])([a-z]*)$/)
3647 if ($npfx eq 'notrans_')
3649 $notrans_sections{$1} = 1;
3653 $trans_sections{$1} = 1;
3658 $varname = '$(' . $varname . ')';
3659 if ($npfx eq 'notrans_')
3661 $notrans_vars{$varname} = 1;
3665 $trans_vars{$varname} = 1;
3667 &push_dist_common ($varname)
3673 return unless %sections;
3677 # Build section independent variables.
3678 my $have_notrans = %notrans_vars;
3679 my @notrans_list = sort keys %notrans_vars;
3680 my $have_trans = %trans_vars;
3681 my @trans_list = sort keys %trans_vars;
3683 # Now for each section, generate an install and uninstall rule.
3684 # Sort sections so output is deterministic.
3685 foreach my $section (sort keys %sections)
3687 # Build section dependent variables.
3688 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3689 my $trans_mans = $have_trans || exists $trans_sections{$section};
3690 my (%notrans_this_sect, %trans_this_sect);
3691 my $expr = 'man' . $section . '_MANS';
3692 foreach my $varname (keys %notrans_sect_vars)
3694 if ($varname =~ /$expr/)
3696 $notrans_this_sect{$varname} = 1;
3699 foreach my $varname (keys %trans_sect_vars)
3701 if ($varname =~ /$expr/)
3703 $trans_this_sect{$varname} = 1;
3706 my @notrans_sect_list = sort keys %notrans_this_sect;
3707 my @trans_sect_list = sort keys %trans_this_sect;
3708 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3709 keys %notrans_this_sect, keys %trans_this_sect);
3710 my @deps = sort @unsorted_deps;
3711 $output_rules .= &file_contents ('mans',
3712 new Automake::Location,
3713 SECTION => $section,
3715 NOTRANS_MANS => $notrans_mans,
3716 NOTRANS_SECT_LIST => "@notrans_sect_list",
3717 HAVE_NOTRANS => $have_notrans,
3718 NOTRANS_LIST => "@notrans_list",
3719 TRANS_MANS => $trans_mans,
3720 TRANS_SECT_LIST => "@trans_sect_list",
3721 HAVE_TRANS => $have_trans,
3722 TRANS_LIST => "@trans_list");
3725 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3726 keys %notrans_sect_vars, keys %trans_sect_vars);
3727 my @mans = sort @unsorted_deps;
3728 $output_vars .= file_contents ('mans-vars',
3729 new Automake::Location,
3732 push (@all, '$(MANS)')
3733 unless option 'no-installman';
3736 # Handle DATA variables.
3739 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3740 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3741 'sysconf', 'sharedstate', 'localstate',
3742 'pkgdata', 'lisp', 'noinst', 'check');
3750 if (var ('SUBDIRS'))
3752 $output_rules .= ("tags-recursive:\n"
3753 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3754 # Never fail here if a subdir fails; it
3756 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3757 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3759 push (@tag_deps, 'tags-recursive');
3760 &depend ('.PHONY', 'tags-recursive');
3761 &depend ('.MAKE', 'tags-recursive');
3763 $output_rules .= ("ctags-recursive:\n"
3764 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3765 # Never fail here if a subdir fails; it
3767 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3768 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3770 push (@ctag_deps, 'ctags-recursive');
3771 &depend ('.PHONY', 'ctags-recursive');
3772 &depend ('.MAKE', 'ctags-recursive');
3775 if (&saw_sources_p (1)
3776 || var ('ETAGS_ARGS')
3780 foreach my $spec (@config_headers)
3782 my ($out, @ins) = split_config_file_spec ($spec);
3783 foreach my $in (@ins)
3785 # If the config header source is in this directory,
3787 push @config, basename ($in)
3788 if $relative_dir eq dirname ($in);
3791 $output_rules .= &file_contents ('tags',
3792 new Automake::Location,
3793 CONFIG => "@config",
3794 TAGSDIRS => "@tag_deps",
3795 CTAGSDIRS => "@ctag_deps");
3797 set_seen 'TAGS_DEPENDENCIES';
3799 elsif (reject_var ('TAGS_DEPENDENCIES',
3800 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3801 . "without\nsources or `ETAGS_ARGS'"))
3806 # Every Makefile must define some sort of TAGS rule.
3807 # Otherwise, it would be possible for a top-level "make TAGS"
3808 # to fail because some subdirectory failed.
3809 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3811 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3815 # Handle multilib support.
3818 if ($seen_multilib && $relative_dir eq '.')
3820 $output_rules .= &file_contents ('multilib', new Automake::Location);
3821 push (@all, 'all-multi');
3826 # user_phony_rule ($NAME)
3827 # -----------------------
3828 # Return false if rule $NAME does not exist. Otherwise,
3829 # declare it as phony, complete its definition (in case it is
3830 # conditional), and return its Automake::Rule instance.
3831 sub user_phony_rule ($)
3834 my $rule = rule $name;
3837 depend ('.PHONY', $name);
3838 # Define $NAME in all condition where it is not already defined,
3839 # so that it is always OK to depend on $NAME.
3840 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3842 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3844 $output_rules .= $c->subst_string . "$name:\n";
3852 # &for_dist_common ($A, $B)
3853 # -------------------------
3854 # Subroutine for &handle_dist: sort files to dist.
3856 # We put README first because it then becomes easier to make a
3857 # Usenet-compliant shar file (in these, README must be first).
3859 # FIXME: do more ordering of files here.
3873 # Handle 'dist' target.
3876 # Substitutions for distdir.am
3879 # Define DIST_SUBDIRS. This must always be done, regardless of the
3880 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3881 my $subdirs = var ('SUBDIRS');
3884 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3885 # to all possible directories, and use it. If DIST_SUBDIRS is
3886 # defined, just use it.
3888 # Note that we check DIST_SUBDIRS first on purpose, so that
3889 # we don't call has_conditional_contents for now reason.
3890 # (In the past one project used so many conditional subdirectories
3891 # that calling has_conditional_contents on SUBDIRS caused
3892 # automake to grow to 150Mb -- this should not happen with
3893 # the current implementation of has_conditional_contents,
3894 # but it's more efficient to avoid the call anyway.)
3895 if (var ('DIST_SUBDIRS'))
3898 elsif ($subdirs->has_conditional_contents)
3900 define_pretty_variable
3901 ('DIST_SUBDIRS', TRUE, INTERNAL,
3902 uniq ($subdirs->value_as_list_recursive));
3906 # We always define this because that is what `distclean'
3908 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3913 # The remaining definitions are only required when a dist target is used.
3914 return if option 'no-dist';
3916 # At least one of the archive formats must be enabled.
3917 if ($relative_dir eq '.')
3919 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3920 $archive_defined ||=
3921 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzma xz);
3922 error (option 'no-dist-gzip',
3923 "no-dist-gzip specified but no dist-* specified, "
3924 . "at least one archive format must be enabled")
3925 unless $archive_defined;
3928 # Look for common files that should be included in distribution.
3929 # If the aux dir is set, and it does not have a Makefile.am, then
3930 # we check for these files there as well.
3932 if ($relative_dir eq '.'
3933 && $config_aux_dir_set_in_configure_ac)
3935 if (! &is_make_dir ($config_aux_dir))
3940 foreach my $cfile (@common_files)
3942 if (dir_has_case_matching_file ($relative_dir, $cfile)
3943 # The file might be absent, but if it can be built it's ok.
3946 &push_dist_common ($cfile);
3949 # Don't use `elsif' here because a file might meaningfully
3950 # appear in both directories.
3951 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3953 &push_dist_common ("$config_aux_dir/$cfile")
3957 # We might copy elements from $configure_dist_common to
3958 # %dist_common if we think we need to. If the file appears in our
3959 # directory, we would have discovered it already, so we don't
3960 # check that. But if the file is in a subdir without a Makefile,
3961 # we want to distribute it here if we are doing `.'. Ugly!
3962 if ($relative_dir eq '.')
3964 foreach my $file (split (' ' , $configure_dist_common))
3966 push_dist_common ($file)
3967 unless is_make_dir (dirname ($file));
3971 # Files to distributed. Don't use ->value_as_list_recursive
3972 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3973 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3974 @dist_common = uniq (sort for_dist_common (@dist_common));
3975 variable_delete 'DIST_COMMON';
3976 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3978 # Now that we've processed DIST_COMMON, disallow further attempts
3980 $handle_dist_run = 1;
3982 # Scan EXTRA_DIST to see if we need to distribute anything from a
3983 # subdir. If so, add it to the list. I didn't want to do this
3984 # originally, but there were so many requests that I finally
3986 my $extra_dist = var ('EXTRA_DIST');
3988 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3989 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3991 # If the target `dist-hook' exists, make sure it is run. This
3992 # allows users to do random weird things to the distribution
3993 # before it is packaged up.
3994 push (@dist_targets, 'dist-hook')
3995 if user_phony_rule 'dist-hook';
3996 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3998 my $flm = option ('filename-length-max');
3999 my $filename_filter = $flm ? '.' x $flm->[1] : '';
4001 $output_rules .= &file_contents ('distdir',
4002 new Automake::Location,
4004 FILENAME_FILTER => $filename_filter);
4008 # check_directory ($NAME, $WHERE)
4009 # -------------------------------
4010 # Ensure $NAME is a directory, and that it uses a sane name.
4011 # Use $WHERE as a location in the diagnostic, if any.
4012 sub check_directory ($$)
4014 my ($dir, $where) = @_;
4016 error $where, "required directory $relative_dir/$dir does not exist"
4017 unless -d "$relative_dir/$dir";
4019 # If an `obj/' directory exists, BSD make will enter it before
4020 # reading `Makefile'. Hence the `Makefile' in the current directory
4026 # % cat obj/Makefile
4032 # % pmake # BSD make
4035 msg ('portability', $where,
4036 "naming a subdirectory `obj' causes troubles with BSD make")
4039 # `aux' is probably the most important of the following forbidden name,
4040 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4041 msg ('portability', $where,
4042 "name `$dir' is reserved on W32 and DOS platforms")
4043 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4046 # check_directories_in_var ($VARIABLE)
4047 # ------------------------------------
4048 # Recursively check all items in variables $VARIABLE as directories
4049 sub check_directories_in_var ($)
4052 $var->traverse_recursively
4055 my ($var, $val, $cond, $full_cond) = @_;
4056 check_directory ($val, $var->rdef ($cond)->location);
4060 skip_ac_subst => 1);
4063 # &handle_subdirs ()
4064 # ------------------
4065 # Handle subdirectories.
4066 sub handle_subdirs ()
4068 my $subdirs = var ('SUBDIRS');
4072 check_directories_in_var $subdirs;
4074 my $dsubdirs = var ('DIST_SUBDIRS');
4075 check_directories_in_var $dsubdirs
4078 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4079 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4083 # ($REGEN, @DEPENDENCIES)
4086 # If aclocal.m4 creation is automated, return the list of its dependencies.
4087 sub scan_aclocal_m4 ()
4089 my $regen_aclocal = 0;
4091 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4092 set_seen 'CONFIGURE_DEPENDENCIES';
4094 if (-f 'aclocal.m4')
4096 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4098 my $aclocal = new Automake::XFile "< aclocal.m4";
4099 my $line = $aclocal->getline;
4100 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4105 if (set_seen ('ACLOCAL_M4_SOURCES'))
4107 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4108 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4109 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4110 . "It should be safe to simply remove it.");
4113 # Note that it might be possible that aclocal.m4 doesn't exist but
4114 # should be auto-generated. This case probably isn't very
4117 return ($regen_aclocal, @ac_deps);
4121 # Helper function for substitute_ac_subst_variables.
4122 sub substitute_ac_subst_variables_worker($)
4125 return "\@$token\@" if var $token;
4126 return "\${$token\}";
4129 # substitute_ac_subst_variables ($TEXT)
4130 # -------------------------------------
4131 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4133 sub substitute_ac_subst_variables ($)
4136 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4141 # &prepend_srcdir (@INPUTS)
4142 # -------------------------
4143 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4144 # if an input file has a directory part the same as the current
4145 # directory, then the directory part is simply replaced by $(srcdir).
4146 # But if the directory part is different, then $(top_srcdir) is
4148 sub prepend_srcdir (@)
4153 foreach my $single (@inputs)
4155 if (dirname ($single) eq $relative_dir)
4157 push (@newinputs, '$(srcdir)/' . basename ($single));
4161 push (@newinputs, '$(top_srcdir)/' . $single);
4168 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4169 # ---------------------------------------------------
4170 # Compute a list of dependencies appropriate for the rebuild
4172 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4173 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4174 sub rewrite_inputs_into_dependencies ($@)
4176 my ($file, @inputs) = @_;
4181 # We cannot create dependencies on shell variables.
4182 next if (substitute_ac_subst_variables $i) =~ /\$/;
4184 if (exists $ac_config_files_location{$i} && $i ne $file)
4186 my $di = dirname $i;
4187 if ($di eq $relative_dir)
4191 # In the top-level Makefile we do not use $(top_builddir), because
4192 # we are already there, and since the targets are built without
4193 # a $(top_builddir), it helps BSD Make to match them with
4195 elsif ($relative_dir ne '.')
4197 $i = '$(top_builddir)/' . $i;
4202 msg ('error', $ac_config_files_location{$file},
4203 "required file `$i' not found")
4204 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4205 ($i) = prepend_srcdir ($i);
4206 push_dist_common ($i);
4215 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4216 # ------------------------------------------------------------------
4217 # Handle remaking and configure stuff.
4218 # We need the name of the input file, to do proper remaking rules.
4219 sub handle_configure ($$$@)
4221 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4223 prog_error 'empty @inputs'
4226 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4228 my $rel_makefile = basename $makefile;
4230 my $colon_infile = ':' . join (':', @inputs);
4231 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4232 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4233 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4234 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4235 @configure_deps, @aclocal_m4_deps,
4236 '$(top_srcdir)/' . $configure_ac);
4237 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4238 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4239 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4242 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4243 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4245 $output_rules .= file_contents
4247 new Automake::Location,
4248 MAKEFILE => $rel_makefile,
4249 'MAKEFILE-DEPS' => "@rewritten",
4250 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4251 'MAKEFILE-IN' => $rel_makefile_in,
4252 'MAKEFILE-IN-DEPS' => "@include_stack",
4253 'MAKEFILE-AM' => $rel_makefile_am,
4254 'AUTOMAKE-OPTIONS' => $automake_options,
4255 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4256 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4257 VERBOSE => verbose_flag ('GEN'));
4259 if ($relative_dir eq '.')
4261 &push_dist_common ('acconfig.h')
4265 # If we have a configure header, require it.
4267 my @distclean_config;
4268 foreach my $spec (@config_headers)
4271 # $CONFIG_H_PATH: config.h from top level.
4272 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4273 my $config_h_dir = dirname ($config_h_path);
4275 # If the header is in the current directory we want to build
4276 # the header here. Otherwise, if we're at the topmost
4277 # directory and the header's directory doesn't have a
4278 # Makefile, then we also want to build the header.
4279 if ($relative_dir eq $config_h_dir
4280 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4282 my ($cn_sans_dir, $stamp_dir);
4283 if ($relative_dir eq $config_h_dir)
4285 $cn_sans_dir = basename ($config_h_path);
4290 $cn_sans_dir = $config_h_path;
4291 if ($config_h_dir eq '.')
4297 $stamp_dir = $config_h_dir . '/';
4301 # This will also distribute all inputs.
4302 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4304 # Cannot define rebuild rules for filenames with shell variables.
4305 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4307 # Header defined in this directory.
4309 if (-f $config_h_path . '.top')
4311 push (@files, "$cn_sans_dir.top");
4313 if (-f $config_h_path . '.bot')
4315 push (@files, "$cn_sans_dir.bot");
4318 push_dist_common (@files);
4320 # For now, acconfig.h can only appear in the top srcdir.
4321 if (-f 'acconfig.h')
4323 push (@files, '$(top_srcdir)/acconfig.h');
4326 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4328 file_contents ('remake-hdr',
4329 new Automake::Location,
4331 CONFIG_H => $cn_sans_dir,
4332 CONFIG_HIN => $ins[0],
4333 CONFIG_H_DEPS => "@ins",
4334 CONFIG_H_PATH => $config_h_path,
4337 push @distclean_config, $cn_sans_dir, $stamp;
4341 $output_rules .= file_contents ('clean-hdr',
4342 new Automake::Location,
4343 FILES => "@distclean_config")
4344 if @distclean_config;
4346 # Distribute and define mkinstalldirs only if it is already present
4347 # in the package, for backward compatibility (some people may still
4348 # use $(mkinstalldirs)).
4349 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4352 # Use require_file so that any existing script gets updated
4353 # by --force-missing.
4354 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4355 define_variable ('mkinstalldirs',
4356 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4360 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4361 # at least one argument, and $(mkinstalldirs) used to work
4362 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4363 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4366 reject_var ('CONFIG_HEADER',
4367 "`CONFIG_HEADER' is an anachronism; now determined "
4368 . "automatically\nfrom `$configure_ac'");
4371 foreach my $spec (@config_headers)
4373 my ($out, @ins) = split_config_file_spec ($spec);
4374 # Generate CONFIG_HEADER define.
4375 if ($relative_dir eq dirname ($out))
4377 push @config_h, basename ($out);
4381 push @config_h, "\$(top_builddir)/$out";
4384 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4387 # Now look for other files in this directory which must be remade
4388 # by config.status, and generate rules for them.
4389 my @actual_other_files = ();
4390 # These get cleaned only in a VPATH build.
4391 my @actual_other_vpath_files = ();
4392 foreach my $lfile (@other_input_files)
4396 if ($lfile =~ /^([^:]*):(.*)$/)
4398 # This is the ":" syntax of AC_OUTPUT.
4400 @inputs = split (':', $2);
4406 @inputs = $file . '.in';
4409 # Automake files should not be stored in here, but in %MAKE_LIST.
4410 prog_error ("$lfile in \@other_input_files\n"
4411 . "\@other_input_files = (@other_input_files)")
4412 if -f $file . '.am';
4414 my $local = basename ($file);
4416 # We skip files that aren't in this directory. However, if
4417 # the file's directory does not have a Makefile, and we are
4418 # currently doing `.', then we create a rule to rebuild the
4419 # file in the subdir.
4420 my $fd = dirname ($file);
4421 if ($fd ne $relative_dir)
4423 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4433 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4435 # Cannot output rules for shell variables.
4436 next if (substitute_ac_subst_variables $local) =~ /\$/;
4439 my $cond = $ac_config_files_condition{$lfile};
4442 $condstr = $cond->subst_string;
4443 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4444 $ac_config_files_location{$file});
4446 $output_rules .= ($condstr . $local . ': '
4447 . '$(top_builddir)/config.status '
4448 . "@rewritten_inputs\n"
4450 . 'cd $(top_builddir) && '
4451 . '$(SHELL) ./config.status '
4452 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4455 push (@actual_other_files, $local);
4458 # For links we should clean destinations and distribute sources.
4459 foreach my $spec (@config_links)
4461 my ($link, $file) = split /:/, $spec;
4462 # Some people do AC_CONFIG_LINKS($computed). We only handle
4463 # the DEST:SRC form.
4465 my $where = $ac_config_files_location{$link};
4467 # Skip destinations that contain shell variables.
4468 if ((substitute_ac_subst_variables $link) !~ /\$/)
4470 # We skip links that aren't in this directory. However, if
4471 # the link's directory does not have a Makefile, and we are
4472 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4473 # in `.'s Makefile.in.
4474 my $local = basename ($link);
4475 my $fd = dirname ($link);
4476 if ($fd ne $relative_dir)
4478 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4489 push @actual_other_files, $local if $local;
4493 push @actual_other_vpath_files, $local if $local;
4497 # Do not process sources that contain shell variables.
4498 if ((substitute_ac_subst_variables $file) !~ /\$/)
4500 my $fd = dirname ($file);
4502 # We distribute files that are in this directory.
4503 # At the top-level (`.') we also distribute files whose
4504 # directory does not have a Makefile.
4505 if (($fd eq $relative_dir)
4506 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4508 # The following will distribute $file as a side-effect when
4509 # it is appropriate (i.e., when $file is not already an output).
4510 # We do not need the result, just the side-effect.
4511 rewrite_inputs_into_dependencies ($link, $file);
4516 # These files get removed by "make distclean".
4517 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4518 @actual_other_files);
4519 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4520 @actual_other_vpath_files);
4526 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4527 'oldinclude', 'pkginclude',
4531 next unless $_->[1] =~ /\..*$/;
4532 &saw_extension ($&);
4538 return if ! $seen_gettext || $relative_dir ne '.';
4540 my $subdirs = var 'SUBDIRS';
4544 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4548 # Perform some sanity checks to help users get the right setup.
4549 # We disable these tests when po/ doesn't exist in order not to disallow
4550 # unusual gettext setups.
4555 # | 1) If a package doesn't have a directory po/ at top level, it
4556 # | will likely have multiple po/ directories in subpackages.
4558 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4559 # | is used without 'external'. It is also useful to warn for the
4560 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4561 # | warnings apply only to the usual layout of packages, therefore
4562 # | they should both be disabled if no po/ directory is found at
4567 my @subdirs = $subdirs->value_as_list_recursive;
4569 msg_var ('syntax', $subdirs,
4570 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4571 if ! grep ($_ eq 'po', @subdirs);
4573 # intl/ is not required when AM_GNU_GETTEXT is called with the
4574 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4575 msg_var ('syntax', $subdirs,
4576 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4577 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4578 && ! grep ($_ eq 'intl', @subdirs));
4580 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4581 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4582 msg_var ('syntax', $subdirs,
4583 "`intl' should not be in SUBDIRS when "
4584 . "AM_GNU_GETTEXT([external]) is used")
4585 if ($seen_gettext_external && ! $seen_gettext_intl
4586 && grep ($_ eq 'intl', @subdirs));
4589 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4592 # Handle footer elements.
4595 reject_rule ('.SUFFIXES',
4596 "use variable `SUFFIXES', not target `.SUFFIXES'");
4598 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4599 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4600 # anything else, by sticking it right after the default: target.
4601 $output_header .= ".SUFFIXES:\n";
4602 my $suffixes = var 'SUFFIXES';
4603 my @suffixes = Automake::Rule::suffixes;
4604 if (@suffixes || $suffixes)
4606 # Make sure SUFFIXES has unique elements. Sort them to ensure
4607 # the output remains consistent. However, $(SUFFIXES) is
4608 # always at the start of the list, unsorted. This is done
4609 # because make will choose rules depending on the ordering of
4610 # suffixes, and this lets the user have some control. Push
4611 # actual suffixes, and not $(SUFFIXES). Some versions of make
4612 # do not like variable substitutions on the .SUFFIXES line.
4613 my @user_suffixes = ($suffixes
4614 ? $suffixes->value_as_list_recursive : ());
4616 my %suffixes = map { $_ => 1 } @suffixes;
4617 delete @suffixes{@user_suffixes};
4619 $output_header .= (".SUFFIXES: "
4620 . join (' ', @user_suffixes, sort keys %suffixes)
4624 $output_trailer .= file_contents ('footer', new Automake::Location);
4628 # Generate `make install' rules.
4629 sub handle_install ()
4631 $output_rules .= &file_contents
4633 new Automake::Location,
4634 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4635 ? (" \$(BUILT_SOURCES)\n"
4636 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4638 'installdirs-local' => (user_phony_rule 'installdirs-local'
4639 ? ' installdirs-local' : ''),
4640 am__installdirs => variable_value ('am__installdirs') || '');
4644 # Deal with all and all-am.
4647 my ($makefile) = @_;
4651 # Put this at the beginning for the sake of non-GNU makes. This
4652 # is still wrong if these makes can run parallel jobs. But it is
4654 unshift (@all, basename ($makefile));
4656 foreach my $spec (@config_headers)
4658 my ($out, @ins) = split_config_file_spec ($spec);
4659 push (@all, basename ($out))
4660 if dirname ($out) eq $relative_dir;
4663 # Install `all' hooks.
4664 push (@all, "all-local")
4665 if user_phony_rule "all-local";
4667 &pretty_print_rule ("all-am:", "\t\t", @all);
4668 &depend ('.PHONY', 'all-am', 'all');
4673 my @local_headers = ();
4674 push @local_headers, '$(BUILT_SOURCES)'
4675 if var ('BUILT_SOURCES');
4676 foreach my $spec (@config_headers)
4678 my ($out, @ins) = split_config_file_spec ($spec);
4679 push @local_headers, basename ($out)
4680 if dirname ($out) eq $relative_dir;
4685 # We need to make sure config.h is built before we recurse.
4686 # We also want to make sure that built sources are built
4687 # before any ordinary `all' targets are run. We can't do this
4688 # by changing the order of dependencies to the "all" because
4689 # that breaks when using parallel makes. Instead we handle
4690 # things explicitly.
4691 $output_all .= ("all: @local_headers"
4693 . '$(MAKE) $(AM_MAKEFLAGS) '
4694 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4696 depend ('.MAKE', 'all');
4700 $output_all .= "all: " . (var ('SUBDIRS')
4701 ? 'all-recursive' : 'all-am') . "\n\n";
4706 # &do_check_merge_target ()
4707 # -------------------------
4708 # Handle check merge target specially.
4709 sub do_check_merge_target ()
4711 # Include user-defined local form of target.
4712 push @check_tests, 'check-local'
4713 if user_phony_rule 'check-local';
4715 # In --cygnus mode, check doesn't depend on all.
4716 if (option 'cygnus')
4718 # Just run the local check rules.
4719 pretty_print_rule ('check-am:', "\t\t", @check);
4723 # The check target must depend on the local equivalent of
4724 # `all', to ensure all the primary targets are built. Then it
4725 # must build the local check rules.
4726 $output_rules .= "check-am: all-am\n";
4729 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4731 depend ('.MAKE', 'check-am');
4736 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4738 depend ('.MAKE', 'check-am');
4741 depend '.PHONY', 'check', 'check-am';
4742 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4743 $output_rules .= ("check: "
4744 . (var ('BUILT_SOURCES')
4745 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4747 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4749 depend ('.MAKE', 'check')
4750 if var ('BUILT_SOURCES');
4753 # handle_clean ($MAKEFILE)
4754 # ------------------------
4755 # Handle all 'clean' targets.
4756 sub handle_clean ($)
4758 my ($makefile) = @_;
4760 # Clean the files listed in user variables if they exist.
4761 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4762 if var ('MOSTLYCLEANFILES');
4763 $clean_files{'$(CLEANFILES)'} = CLEAN
4764 if var ('CLEANFILES');
4765 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4766 if var ('DISTCLEANFILES');
4767 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4768 if var ('MAINTAINERCLEANFILES');
4770 # Built sources are automatically removed by maintainer-clean.
4771 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4772 if var ('BUILT_SOURCES');
4774 # Compute a list of "rm"s to run for each target.
4775 my %rms = (MOSTLY_CLEAN, [],
4778 MAINTAINER_CLEAN, []);
4780 foreach my $file (keys %clean_files)
4782 my $when = $clean_files{$file};
4783 prog_error 'invalid entry in %clean_files'
4784 unless exists $rms{$when};
4786 my $rm = "rm -f $file";
4787 # If file is a variable, make sure when don't call `rm -f' without args.
4788 $rm ="test -z \"$file\" || $rm"
4789 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4791 push @{$rms{$when}}, "\t-$rm\n";
4794 $output_rules .= &file_contents
4796 new Automake::Location,
4797 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4798 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4799 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4800 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4801 MAKEFILE => basename $makefile,
4806 # &target_cmp ($A, $B)
4807 # --------------------
4808 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4809 # other `.TARGETS' be last.
4812 return 0 if $a eq $b;
4814 my $a1 = substr ($a, 0, 1);
4815 my $b1 = substr ($b, 0, 1);
4818 return -1 if $b1 eq '.';
4819 return 1 if $a1 eq '.';
4825 # &handle_factored_dependencies ()
4826 # --------------------------------
4827 # Handle everything related to gathered targets.
4828 sub handle_factored_dependencies
4831 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4832 'uninstall-exec-local', 'uninstall-exec-hook',
4833 'uninstall-dvi-local',
4834 'uninstall-html-local',
4835 'uninstall-info-local',
4836 'uninstall-pdf-local',
4837 'uninstall-ps-local')
4841 reject_rule ($utarg, "use `$x', not `$utarg'");
4844 reject_rule ('install-local',
4845 "use `install-data-local' or `install-exec-local', "
4846 . "not `install-local'");
4848 reject_rule ('install-hook',
4849 "use `install-data-hook' or `install-exec-hook', "
4850 . "not `install-hook'");
4852 # Install the -local hooks.
4853 foreach (keys %dependencies)
4855 # Hooks are installed on the -am targets.
4857 depend ("$_-am", "$_-local")
4858 if user_phony_rule "$_-local";
4861 # Install the -hook hooks.
4862 # FIXME: Why not be as liberal as we are with -local hooks?
4863 foreach ('install-exec', 'install-data', 'uninstall')
4865 if (user_phony_rule "$_-hook")
4867 depend ('.MAKE', "$_-am");
4868 register_action("$_-am",
4869 ("\t\@\$(NORMAL_INSTALL)\n"
4870 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4874 # All the required targets are phony.
4875 depend ('.PHONY', keys %required_targets);
4877 # Actually output gathered targets.
4878 foreach (sort target_cmp keys %dependencies)
4880 # If there is nothing about this guy, skip it.
4882 unless (@{$dependencies{$_}}
4884 || $required_targets{$_});
4886 # Define gathered targets in undefined conditions.
4887 # FIXME: Right now we must handle .PHONY as an exception,
4888 # because people write things like
4889 # .PHONY: myphonytarget
4890 # to append dependencies. This would not work if Automake
4891 # refrained from defining its own .PHONY target as it does
4892 # with other overridden targets.
4893 # Likewise for `.MAKE'.
4894 my @undefined_conds = (TRUE,);
4895 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4898 Automake::Rule::define ($_, 'internal',
4899 RULE_AUTOMAKE, TRUE, INTERNAL);
4901 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4902 foreach my $cond (@undefined_conds)
4904 my $condstr = $cond->subst_string;
4905 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4906 $output_rules .= $actions{$_} if defined $actions{$_};
4907 $output_rules .= "\n";
4913 # &handle_tests_dejagnu ()
4914 # ------------------------
4915 sub handle_tests_dejagnu
4917 push (@check_tests, 'check-DEJAGNU');
4918 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4922 # Handle TESTS variable and other checks.
4925 if (option 'dejagnu')
4927 &handle_tests_dejagnu;
4931 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4933 reject_var ($c, "`$c' defined but `dejagnu' not in "
4934 . "`AUTOMAKE_OPTIONS'");
4940 push (@check_tests, 'check-TESTS');
4941 $output_rules .= &file_contents ('check', new Automake::Location,
4942 COLOR => !! option 'color-tests',
4943 PARALLEL_TESTS => !! option 'parallel-tests');
4945 # Tests that are known programs should have $(EXEEXT) appended.
4946 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4947 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4948 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4949 if (var ('XFAIL_TESTS'));
4951 if (option 'parallel-tests')
4953 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4954 define_variable ('TEST_SUITE_HTML', '$(TEST_SUITE_LOG:.log=.html)', INTERNAL);
4957 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4960 $at_exeext = subst ('EXEEXT');
4961 $suff = $at_exeext . ' ' . $suff;
4963 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4964 # FIXME: this mishandles conditions.
4965 my @test_suffixes = (var 'TEST_EXTENSIONS')->value_as_list_recursive;
4968 unshift (@test_suffixes, $at_exeext)
4969 unless $test_suffixes[0] eq $at_exeext;
4971 unshift (@test_suffixes, '');
4973 transform_variable_recursively
4974 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4976 my ($subvar, $val, $cond, $full_cond) = @_;
4979 if $val =~ /^\@.*\@$/;
4980 $obj =~ s/\$\(EXEEXT\)$//o;
4982 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4984 msg ('error', $subvar->rdef ($cond)->location,
4985 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
4988 foreach my $test_suffix (@test_suffixes)
4991 if $test_suffix eq $at_exeext || $test_suffix eq '';
4992 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4993 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4996 my $compile = 'LOG_COMPILE';
4997 define_variable ($compile,
4998 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
4999 $output_rules .= file_contents ('check2', new Automake::Location,
5003 COMPILE =>'$(' . $compile . ')',
5005 am__EXEEXT => 'FALSE');
5012 my $last_suffix = $test_suffixes[$#test_suffixes];
5014 foreach my $test_suffix (@test_suffixes)
5016 if ($test_suffix eq $last_suffix)
5022 $cur = 'am__test_logs' . $nhelper;
5024 define_variable ($cur,
5025 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5029 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5031 (my $ext = $test_suffix) =~ s/^\.//;
5033 my $compile = $ext . '_LOG_COMPILE';
5034 define_variable ($compile,
5035 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5036 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5037 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5038 $output_rules .= file_contents ('check2', new Automake::Location,
5042 COMPILE => '$(' . $compile . ')',
5043 EXT => $test_suffix,
5044 am__EXEEXT => $am_exeext);
5048 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5050 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5051 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5052 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5053 $clean_files{'$(TEST_SUITE_HTML)'} = MOSTLY_CLEAN;
5058 # Handle Emacs Lisp.
5059 sub handle_emacs_lisp
5061 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5064 return if ! @elfiles;
5066 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5067 map { $_->[1] } @elfiles);
5068 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5069 '$(am__ELFILES:.el=.elc)');
5070 # This one can be overridden by users.
5071 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5073 push @all, '$(ELCFILES)';
5075 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5076 'EMACS', 'lispdir');
5077 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5078 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5084 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5086 return if ! @pyfiles;
5088 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5089 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5090 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5096 my @sourcelist = &am_install_var ('-candist',
5098 'java', 'noinst', 'check');
5099 return if ! @sourcelist;
5101 my @prefix = am_primary_prefixes ('JAVA', 1,
5102 'java', 'noinst', 'check');
5105 foreach my $curs (@prefix)
5108 if $curs eq 'EXTRA';
5110 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5116 push (@all, 'class' . $dir . '.stamp');
5120 # Handle some of the minor options.
5121 sub handle_minor_options
5123 if (option 'readme-alpha')
5125 if ($relative_dir eq '.')
5127 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5129 msg ('error-gnits', $package_version_location,
5130 "version `$package_version' doesn't follow " .
5133 if (defined $1 && -f 'README-alpha')
5135 # This means we have an alpha release. See
5136 # GNITS_VERSION_PATTERN for details.
5137 push_dist_common ('README-alpha');
5143 ################################################################
5145 # ($OUTPUT, @INPUTS)
5146 # &split_config_file_spec ($SPEC)
5147 # -------------------------------
5148 # Decode the Autoconf syntax for config files (files, headers, links
5150 sub split_config_file_spec ($)
5153 my ($output, @inputs) = split (/:/, $spec);
5155 push @inputs, "$output.in"
5158 return ($output, @inputs);
5162 # locate_am (@POSSIBLE_SOURCES)
5163 # -----------------------------
5164 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5165 # This functions returns the first *.in file for which a *.am exists.
5166 # It returns undef otherwise.
5171 foreach my $file (@rest)
5173 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5184 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5185 # ---------------------------------------------------
5186 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5188 sub scan_autoconf_config_files ($$)
5190 my ($where, $config_files) = @_;
5192 # Look at potential Makefile.am's.
5193 foreach (split ' ', $config_files)
5195 # Must skip empty string for Perl 4.
5196 next if $_ eq "\\" || $_ eq '';
5198 # Handle $local:$input syntax.
5199 my ($local, @rest) = split (/:/);
5200 @rest = ("$local.in",) unless @rest;
5201 msg ('portability', $where,
5202 "Omit leading `./' from config file names such as `$local',"
5203 . "\nas not all make implementations treat `file' and `./file' equally.")
5204 if ($local =~ /^\.\//);
5205 my $input = locate_am @rest;
5208 # We have a file that automake should generate.
5209 $make_list{$input} = join (':', ($local, @rest));
5213 # We have a file that automake should cause to be
5214 # rebuilt, but shouldn't generate itself.
5215 push (@other_input_files, $_);
5217 $ac_config_files_location{$local} = $where;
5218 $ac_config_files_condition{$local} =
5219 new Automake::Condition (@cond_stack)
5225 # &scan_autoconf_traces ($FILENAME)
5226 # ---------------------------------
5227 sub scan_autoconf_traces ($)
5229 my ($filename) = @_;
5231 # Macros to trace, with their minimal number of arguments.
5233 # IMPORTANT: If you add a macro here, you should also add this macro
5234 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5236 AC_CANONICAL_BUILD => 0,
5237 AC_CANONICAL_HOST => 0,
5238 AC_CANONICAL_TARGET => 0,
5239 AC_CONFIG_AUX_DIR => 1,
5240 AC_CONFIG_FILES => 1,
5241 AC_CONFIG_HEADERS => 1,
5242 AC_CONFIG_LIBOBJ_DIR => 1,
5243 AC_CONFIG_LINKS => 1,
5247 AC_REQUIRE_AUX_FILE => 1,
5248 AC_SUBST_TRACE => 1,
5249 AM_AUTOMAKE_VERSION => 1,
5250 AM_CONDITIONAL => 2,
5251 AM_ENABLE_MULTILIB => 0,
5252 AM_GNU_GETTEXT => 0,
5253 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5254 AM_INIT_AUTOMAKE => 0,
5255 AM_MAINTAINER_MODE => 0,
5256 AM_PROG_CC_C_O => 0,
5257 AM_SILENT_RULES => 0,
5258 _AM_SUBST_NOTMAKE => 1,
5261 _AM_COND_ENDIF => 1,
5262 LT_SUPPORTED_TAG => 1,
5263 _LT_AC_TAGCONFIG => 0,
5269 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
5271 # Use a separator unlikely to be used, not `:', the default, which
5272 # has a precise meaning for AC_CONFIG_FILES and so on.
5273 $traces .= join (' ',
5274 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5277 my $tracefh = new Automake::XFile ("$traces $filename |");
5278 verb "reading $traces";
5283 while ($_ = $tracefh->getline)
5286 my ($here, $depth, @args) = split (/::/);
5287 $where = new Automake::Location $here;
5288 my $macro = $args[0];
5290 prog_error ("unrequested trace `$macro'")
5291 unless exists $traced{$macro};
5293 # Skip and diagnose malformed calls.
5294 if ($#args < $traced{$macro})
5296 msg ('syntax', $where, "not enough arguments for $macro");
5300 # Alphabetical ordering please.
5301 if ($macro eq 'AC_CANONICAL_BUILD')
5303 if ($seen_canonical <= AC_CANONICAL_BUILD)
5305 $seen_canonical = AC_CANONICAL_BUILD;
5306 $canonical_location = $where;
5309 elsif ($macro eq 'AC_CANONICAL_HOST')
5311 if ($seen_canonical <= AC_CANONICAL_HOST)
5313 $seen_canonical = AC_CANONICAL_HOST;
5314 $canonical_location = $where;
5317 elsif ($macro eq 'AC_CANONICAL_TARGET')
5319 $seen_canonical = AC_CANONICAL_TARGET;
5320 $canonical_location = $where;
5322 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5324 if ($seen_init_automake)
5326 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5327 . "AM_INIT_AUTOMAKE...", partial => 1);
5328 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5330 $config_aux_dir = $args[1];
5331 $config_aux_dir_set_in_configure_ac = 1;
5332 $relative_dir = '.';
5333 check_directory ($config_aux_dir, $where);
5335 elsif ($macro eq 'AC_CONFIG_FILES')
5337 # Look at potential Makefile.am's.
5338 scan_autoconf_config_files ($where, $args[1]);
5340 elsif ($macro eq 'AC_CONFIG_HEADERS')
5342 foreach my $spec (split (' ', $args[1]))
5344 my ($dest, @src) = split (':', $spec);
5345 $ac_config_files_location{$dest} = $where;
5346 push @config_headers, $spec;
5349 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5351 $config_libobj_dir = $args[1];
5352 $relative_dir = '.';
5353 check_directory ($config_libobj_dir, $where);
5355 elsif ($macro eq 'AC_CONFIG_LINKS')
5357 foreach my $spec (split (' ', $args[1]))
5359 my ($dest, $src) = split (':', $spec);
5360 $ac_config_files_location{$dest} = $where;
5361 push @config_links, $spec;
5364 elsif ($macro eq 'AC_FC_SRCEXT')
5366 my $suffix = $args[1];
5367 # These flags are used as %SOURCEFLAG% in depend2.am,
5368 # where the trailing space is important.
5369 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5370 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5372 elsif ($macro eq 'AC_INIT')
5374 if (defined $args[2])
5376 $package_version = $args[2];
5377 $package_version_location = $where;
5380 elsif ($macro eq 'AC_LIBSOURCE')
5382 $libsources{$args[1]} = $here;
5384 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5386 # Only remember the first time a file is required.
5387 $required_aux_file{$args[1]} = $where
5388 unless exists $required_aux_file{$args[1]};
5390 elsif ($macro eq 'AC_SUBST_TRACE')
5392 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5393 # AC_SUBST(5), then too bad.
5394 $configure_vars{$args[1]} = $where
5395 if $args[1] =~ /^\w+$/;
5397 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5400 "version mismatch. This is Automake $VERSION,\n" .
5401 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5402 "comes from Automake $args[1]. You should recreate\n" .
5403 "aclocal.m4 with aclocal and run automake again.\n",
5404 # $? = 63 is used to indicate version mismatch to missing.
5406 if $VERSION ne $args[1];
5408 $seen_automake_version = 1;
5410 elsif ($macro eq 'AM_CONDITIONAL')
5412 $configure_cond{$args[1]} = $where;
5414 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5416 $seen_multilib = $where;
5418 elsif ($macro eq 'AM_GNU_GETTEXT')
5420 $seen_gettext = $where;
5421 $ac_gettext_location = $where;
5422 $seen_gettext_external = grep ($_ eq 'external', @args);
5424 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5426 $seen_gettext_intl = $where;
5428 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5430 $seen_init_automake = $where;
5431 if (defined $args[2])
5433 $package_version = $args[2];
5434 $package_version_location = $where;
5436 elsif (defined $args[1])
5439 if (process_global_option_list ($where,
5440 split (' ', $args[1])));
5443 elsif ($macro eq 'AM_MAINTAINER_MODE')
5445 $seen_maint_mode = $where;
5447 elsif ($macro eq 'AM_PROG_CC_C_O')
5449 $seen_cc_c_o = $where;
5451 elsif ($macro eq 'AM_SILENT_RULES')
5453 set_global_option ('silent-rules', $where);
5455 elsif ($macro eq '_AM_COND_IF')
5457 cond_stack_if ('', $args[1], $where);
5458 error ($where, "missing m4 quoting, macro depth $depth")
5461 elsif ($macro eq '_AM_COND_ELSE')
5463 cond_stack_else ('!', $args[1], $where);
5464 error ($where, "missing m4 quoting, macro depth $depth")
5467 elsif ($macro eq '_AM_COND_ENDIF')
5469 cond_stack_endif (undef, undef, $where);
5470 error ($where, "missing m4 quoting, macro depth $depth")
5473 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5475 $ignored_configure_vars{$args[1]} = $where;
5477 elsif ($macro eq 'm4_include'
5478 || $macro eq 'm4_sinclude'
5479 || $macro eq 'sinclude')
5481 # Skip missing `sinclude'd files.
5482 next if $macro ne 'm4_include' && ! -f $args[1];
5484 # Some modified versions of Autoconf don't use
5485 # frozen files. Consequently it's possible that we see all
5486 # m4_include's performed during Autoconf's startup.
5487 # Obviously we don't want to distribute Autoconf's files
5488 # so we skip absolute filenames here.
5489 push @configure_deps, '$(top_srcdir)/' . $args[1]
5490 unless $here =~ m,^(?:\w:)?[\\/],;
5491 # Keep track of the greatest timestamp.
5494 my $mtime = mtime $args[1];
5495 $configure_deps_greatest_timestamp = $mtime
5496 if $mtime > $configure_deps_greatest_timestamp;
5499 elsif ($macro eq 'LT_SUPPORTED_TAG')
5501 $libtool_tags{$args[1]} = 1;
5502 $libtool_new_api = 1;
5504 elsif ($macro eq '_LT_AC_TAGCONFIG')
5506 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5507 # We use it to detect whether tags are supported. Our
5508 # preferred interface is LT_SUPPORTED_TAG, but it was
5509 # introduced in Libtool 1.6.
5510 if (0 == keys %libtool_tags)
5512 # Hardcode the tags supported by Libtool 1.5.
5513 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5518 error ($where, "condition stack not properly closed")
5525 # &scan_autoconf_files ()
5526 # -----------------------
5527 # Check whether we use `configure.ac' or `configure.in'.
5528 # Scan it (and possibly `aclocal.m4') for interesting things.
5529 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5530 sub scan_autoconf_files ()
5532 # Reinitialize libsources here. This isn't really necessary,
5533 # since we currently assume there is only one configure.ac. But
5534 # that won't always be the case.
5537 # Keep track of the youngest configure dependency.
5538 $configure_deps_greatest_timestamp = mtime $configure_ac;
5539 if (-e 'aclocal.m4')
5541 my $mtime = mtime 'aclocal.m4';
5542 $configure_deps_greatest_timestamp = $mtime
5543 if $mtime > $configure_deps_greatest_timestamp;
5546 scan_autoconf_traces ($configure_ac);
5548 @configure_input_files = sort keys %make_list;
5549 # Set input and output files if not specified by user.
5552 @input_files = @configure_input_files;
5553 %output_files = %make_list;
5557 if (! $seen_init_automake)
5559 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5560 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5561 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5562 . "and that aclocal.m4 was recently regenerated "
5563 . "(using aclocal).");
5567 if (! $seen_automake_version)
5569 if (-f 'aclocal.m4')
5571 error ($seen_init_automake,
5572 "your implementation of AM_INIT_AUTOMAKE comes from " .
5573 "an\nold Automake version. You should recreate " .
5574 "aclocal.m4\nwith aclocal and run automake again.\n",
5575 # $? = 63 is used to indicate version mismatch to missing.
5580 error ($seen_init_automake,
5581 "no proper implementation of AM_INIT_AUTOMAKE was " .
5582 "found,\nprobably because aclocal.m4 is missing...\n" .
5583 "You should run aclocal to create this file, then\n" .
5584 "run automake again.\n");
5591 # Reorder @input_files so that the Makefile that distributes aux
5592 # files is processed last. This is important because each directory
5593 # can require auxiliary scripts and we should wait until they have
5594 # been installed before distributing them.
5596 # The Makefile.in that distribute the aux files is the one in
5597 # $config_aux_dir or the top-level Makefile.
5598 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5599 my @new_input_files = ();
5600 while (@input_files)
5602 my $in = pop @input_files;
5603 my @ins = split (/:/, $output_files{$in});
5604 if (dirname ($ins[0]) eq $auxdirdist)
5606 push @new_input_files, $in;
5607 $automake_will_process_aux_dir = 1;
5611 unshift @new_input_files, $in;
5614 @input_files = @new_input_files;
5616 # If neither the auxdir/Makefile nor the ./Makefile are generated
5617 # by Automake, we won't distribute the aux files anyway. Assume
5618 # the user know what (s)he does, and pretend we will distribute
5619 # them to disable the error in require_file_internal.
5620 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5622 # Look for some files we need. Always check for these. This
5623 # check must be done for every run, even those where we are only
5624 # looking at a subdir Makefile. We must set relative_dir for
5625 # maybe_push_required_file to work.
5626 # Sort the files for stable verbose output.
5627 $relative_dir = '.';
5628 foreach my $file (sort keys %required_aux_file)
5630 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5632 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5633 if -f $config_aux_dir . '/install.sh';
5635 # Preserve dist_common for later.
5636 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5640 ################################################################
5642 # Set up for Cygnus mode.
5645 my $cygnus = option 'cygnus';
5646 return unless $cygnus;
5648 set_strictness ('foreign');
5649 set_option ('no-installinfo', $cygnus);
5650 set_option ('no-dependencies', $cygnus);
5651 set_option ('no-dist', $cygnus);
5653 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5654 if !$seen_maint_mode;
5657 # Do any extra checking for GNU standards.
5658 sub check_gnu_standards
5660 if ($relative_dir eq '.')
5662 # In top level (or only) directory.
5663 require_file ("$am_file.am", GNU,
5664 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5666 # Accept one of these three licenses; default to COPYING.
5667 # Make sure we do not overwrite an existing license.
5669 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5677 require_file ("$am_file.am", GNU, 'COPYING')
5681 for my $opt ('no-installman', 'no-installinfo')
5683 msg ('error-gnu', option $opt,
5684 "option `$opt' disallowed by GNU standards")
5689 # Do any extra checking for GNITS standards.
5690 sub check_gnits_standards
5692 if ($relative_dir eq '.')
5694 # In top level (or only) directory.
5695 require_file ("$am_file.am", GNITS, 'THANKS');
5699 ################################################################
5701 # Functions to handle files of each language.
5703 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5704 # simple formula: Return value is LANG_SUBDIR if the resulting object
5705 # file should be in a subdir if the source file is, LANG_PROCESS if
5706 # file is to be dealt with, LANG_IGNORE otherwise.
5708 # Much of the actual processing is handled in
5709 # handle_single_transform. These functions exist so that
5710 # auxiliary information can be recorded for a later cleanup pass.
5711 # Note that the calls to these functions are computed, so don't bother
5712 # searching for their precise names in the source.
5714 # This is just a convenience function that can be used to determine
5715 # when a subdir object should be used.
5718 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5721 # Rewrite a single C source file.
5724 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5726 if (option 'ansi2knr' && $base =~ /_$/)
5728 # FIXME: include line number in error.
5729 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5732 my $r = LANG_PROCESS;
5733 if (option 'subdir-objects')
5736 if ($directory && $directory ne '.')
5738 $base = $directory . '/' . $base;
5740 # libtool is always able to put the object at the proper place,
5741 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5742 msg_var ('portability', $var,
5743 "compiling `$base.c' in subdir requires "
5744 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5745 uniq_scope => US_GLOBAL,
5746 uniq_part => 'AM_PROG_CC_C_O subdir')
5747 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5750 # In this case we already have the directory information, so
5751 # don't add it again.
5752 $de_ansi_files{$base} = '';
5756 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5762 && $have_per_exec_flags
5763 && ! option 'subdir-objects'
5764 && $nonansi_obj ne '.lo')
5766 msg_var ('portability',
5767 $var, "compiling `$base.c' with per-target flags requires "
5768 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5769 uniq_scope => US_GLOBAL,
5770 uniq_part => 'AM_PROG_CC_C_O per-target')
5776 # Rewrite a single C++ source file.
5777 sub lang_cxx_rewrite
5779 return &lang_sub_obj;
5782 # Rewrite a single header file.
5783 sub lang_header_rewrite
5785 # Header files are simply ignored.
5789 # Rewrite a single Vala source file.
5790 sub lang_vala_rewrite
5792 my ($directory, $base, $ext) = @_;
5794 (my $newext = $ext) =~ s/vala$/c/;
5795 return (LANG_SUBDIR, $newext);
5798 # Rewrite a single yacc file.
5799 sub lang_yacc_rewrite
5801 my ($directory, $base, $ext) = @_;
5803 my $r = &lang_sub_obj;
5804 (my $newext = $ext) =~ tr/y/c/;
5805 return ($r, $newext);
5808 # Rewrite a single yacc++ file.
5809 sub lang_yaccxx_rewrite
5811 my ($directory, $base, $ext) = @_;
5813 my $r = &lang_sub_obj;
5814 (my $newext = $ext) =~ tr/y/c/;
5815 return ($r, $newext);
5818 # Rewrite a single lex file.
5819 sub lang_lex_rewrite
5821 my ($directory, $base, $ext) = @_;
5823 my $r = &lang_sub_obj;
5824 (my $newext = $ext) =~ tr/l/c/;
5825 return ($r, $newext);
5828 # Rewrite a single lex++ file.
5829 sub lang_lexxx_rewrite
5831 my ($directory, $base, $ext) = @_;
5833 my $r = &lang_sub_obj;
5834 (my $newext = $ext) =~ tr/l/c/;
5835 return ($r, $newext);
5838 # Rewrite a single assembly file.
5839 sub lang_asm_rewrite
5841 return &lang_sub_obj;
5844 # Rewrite a single preprocessed assembly file.
5845 sub lang_cppasm_rewrite
5847 return &lang_sub_obj;
5850 # Rewrite a single Fortran 77 file.
5851 sub lang_f77_rewrite
5853 return &lang_sub_obj;
5856 # Rewrite a single Fortran file.
5859 return &lang_sub_obj;
5862 # Rewrite a single preprocessed Fortran file.
5863 sub lang_ppfc_rewrite
5865 return &lang_sub_obj;
5868 # Rewrite a single preprocessed Fortran 77 file.
5869 sub lang_ppf77_rewrite
5871 return &lang_sub_obj;
5874 # Rewrite a single ratfor file.
5875 sub lang_ratfor_rewrite
5877 return &lang_sub_obj;
5880 # Rewrite a single Objective C file.
5881 sub lang_objc_rewrite
5883 return &lang_sub_obj;
5886 # Rewrite a single Unified Parallel C file.
5887 sub lang_upc_rewrite
5889 return &lang_sub_obj;
5892 # Rewrite a single Java file.
5893 sub lang_java_rewrite
5898 # The lang_X_finish functions are called after all source file
5899 # processing is done. Each should handle defining rules for the
5900 # language, etc. A finish function is only called if a source file of
5901 # the appropriate type has been seen.
5905 # Push all libobjs files onto de_ansi_files. We actually only
5906 # push files which exist in the current directory, and which are
5907 # genuine source files.
5908 foreach my $file (keys %libsources)
5910 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5912 $de_ansi_files{$1} = ''
5916 if (option 'ansi2knr' && keys %de_ansi_files)
5918 # Make all _.c files depend on their corresponding .c files.
5920 foreach my $base (sort keys %de_ansi_files)
5922 # Each _.c file must depend on ansi2knr; otherwise it
5923 # might be used in a parallel build before it is built.
5924 # We need to support files in the srcdir and in the build
5925 # dir (because these files might be auto-generated. But
5926 # we can't use $< -- some makes only define $< during a
5928 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5929 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5930 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5931 . '`if test -f $(srcdir)/' . $ansfile
5932 . '; then echo $(srcdir)/' . $ansfile
5933 . '; else echo ' . $ansfile . '; fi` '
5934 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5935 . '| $(ANSI2KNR) > $@'
5936 # If ansi2knr fails then we shouldn't
5937 # create the _.c file
5938 . " || rm -f \$\@\n");
5939 push (@objects, $base . '_.$(OBJEXT)');
5940 push (@objects, $base . '_.lo')
5943 # Explicitly clean the _.c files if they are in a
5944 # subdirectory. (In the current directory they get erased
5945 # by a `rm -f *_.c' rule.)
5946 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5947 if dirname ($base) ne '.';
5950 # Make all _.o (and _.lo) files depend on ansi2knr.
5951 # Use a sneaky little hack to make it print nicely.
5952 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5956 sub lang_vala_finish_target ($$)
5958 my ($self, $name) = @_;
5960 my $derived = canonicalize ($name);
5961 my $varname = $derived . '_SOURCES';
5962 my $var = var ($varname);
5966 foreach my $file ($var->value_as_list_recursive)
5968 $output_rules .= "\$(srcdir)/$file: \$(srcdir)/${derived}_vala.stamp\n"
5969 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5970 . "\t\@if test -f \$@; then :; else \\\n"
5971 . "\t \$(am__cd) \$(srcdir) && \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n"
5973 if $file =~ s/(.*)\.vala$/$1.c/;
5977 # Add rebuild rules for generated header and vapi files
5978 my $flags = var ($derived . '_VALAFLAGS');
5982 foreach my $flag ($flags->value_as_list_recursive)
5984 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5985 '--vapi', '--internal-vapi', '--gir')))
5987 my $headerfile = $flag;
5988 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5989 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5990 . "\t\@if test -f \$@; then :; else \\\n"
5991 . "\t \$(am__cd) \$(srcdir) && \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n"
5994 # valac is not used when building from dist tarballs
5995 # distribute the generated files
5996 push_dist_common ($headerfile);
5997 $clean_files{$headerfile} = MAINTAINER_CLEAN;
6003 my $compile = $self->compile;
6005 # Rewrite each occurrence of `AM_VALAFLAGS' in the compile
6006 # rule into `${derived}_VALAFLAGS' if it exists.
6007 my $val = "${derived}_VALAFLAGS";
6008 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
6011 # VALAFLAGS is a user variable (per GNU Standards),
6012 # it should not be overridden in the Makefile...
6013 check_user_variables ['VALAFLAGS'];
6015 my $dirname = dirname ($name);
6017 # Only generate C code, do not run C compiler
6020 my $verbose = verbose_flag ('VALAC');
6021 my $silent = silent_flag ();
6024 "${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
6025 "\t${verbose}${compile} \$(${derived}_SOURCES)\n".
6026 "\t${silent}touch \$@\n";
6028 push_dist_common ("${derived}_vala.stamp");
6030 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
6033 # Add output rules to invoke valac and create stamp file as a witness
6034 # to handle multiple outputs. This function is called after all source
6035 # file processing is done.
6036 sub lang_vala_finish
6040 foreach my $prog (keys %known_programs)
6042 lang_vala_finish_target ($self, $prog);
6045 while (my ($name) = each %known_libraries)
6047 lang_vala_finish_target ($self, $name);
6051 # The built .c files should be cleaned only on maintainer-clean
6052 # as the .c files are distributed. This function is called for each
6053 # .vala source file.
6054 sub lang_vala_target_hook
6056 my ($self, $aggregate, $output, $input, %transform) = @_;
6058 $clean_files{$output} = MAINTAINER_CLEAN;
6061 # This is a yacc helper which is called whenever we have decided to
6062 # compile a yacc file.
6063 sub lang_yacc_target_hook
6065 my ($self, $aggregate, $output, $input, %transform) = @_;
6067 my $flag = $aggregate . "_YFLAGS";
6068 my $flagvar = var $flag;
6069 my $YFLAGSvar = var 'YFLAGS';
6070 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6071 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6073 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6074 my $header = $output_base . '.h';
6076 # Found a `-d' that applies to the compilation of this file.
6077 # Add a dependency for the generated header file, and arrange
6078 # for that file to be included in the distribution.
6079 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6080 RULE_AUTOMAKE, TRUE,
6083 my $condstr = $cond->subst_string;
6085 "$condstr${header}: $output\n"
6086 # Recover from removal of $header
6087 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
6088 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
6090 # Distribute the generated file, unless its .y source was
6091 # listed in a nodist_ variable. (&handle_source_transform
6092 # will set DIST_SOURCE.)
6093 &push_dist_common ($header)
6094 if $transform{'DIST_SOURCE'};
6096 # If the files are built in the build directory, then we want
6097 # to remove them with `make clean'. If they are in srcdir
6098 # they shouldn't be touched. However, we can't determine this
6099 # statically, and the GNU rules say that yacc/lex output files
6100 # should be removed by maintainer-clean. So that's what we
6102 $clean_files{$header} = MAINTAINER_CLEAN;
6104 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6105 # See the comment above for $HEADER.
6106 $clean_files{$output} = MAINTAINER_CLEAN;
6109 # This is a lex helper which is called whenever we have decided to
6110 # compile a lex file.
6111 sub lang_lex_target_hook
6113 my ($self, $aggregate, $output, $input) = @_;
6114 # If the files are built in the build directory, then we want to
6115 # remove them with `make clean'. If they are in srcdir they
6116 # shouldn't be touched. However, we can't determine this
6117 # statically, and the GNU rules say that yacc/lex output files
6118 # should be removed by maintainer-clean. So that's what we do.
6119 $clean_files{$output} = MAINTAINER_CLEAN;
6122 # This is a helper for both lex and yacc.
6123 sub yacc_lex_finish_helper
6125 return if defined $language_scratch{'lex-yacc-done'};
6126 $language_scratch{'lex-yacc-done'} = 1;
6128 # FIXME: for now, no line number.
6129 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6130 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6133 sub lang_yacc_finish
6135 return if defined $language_scratch{'yacc-done'};
6136 $language_scratch{'yacc-done'} = 1;
6138 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6140 yacc_lex_finish_helper;
6146 return if defined $language_scratch{'lex-done'};
6147 $language_scratch{'lex-done'} = 1;
6149 yacc_lex_finish_helper;
6153 # Given a hash table of linker names, pick the name that has the most
6154 # precedence. This is lame, but something has to have global
6155 # knowledge in order to eliminate the conflict. Add more linkers as
6161 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6163 return $l if defined $linkers{$l};
6168 # Called to indicate that an extension was used.
6172 if (! defined $extension_seen{$ext})
6174 $extension_seen{$ext} = 1;
6178 ++$extension_seen{$ext};
6182 # Return the number of files seen for a given language. Knows about
6183 # special cases we care about. FIXME: this is hideous. We need
6184 # something that involves real language objects. For instance yacc
6185 # and yaccxx could both derive from a common yacc class which would
6186 # know about the strange ylwrap requirement. (Or better yet we could
6187 # just not support legacy yacc!)
6188 sub count_files_for_language
6193 if ($name eq 'yacc' || $name eq 'yaccxx')
6195 @names = ('yacc', 'yaccxx');
6197 elsif ($name eq 'lex' || $name eq 'lexxx')
6199 @names = ('lex', 'lexxx');
6207 foreach $name (@names)
6209 my $lang = $languages{$name};
6210 foreach my $ext (@{$lang->extensions})
6212 $r += $extension_seen{$ext}
6213 if defined $extension_seen{$ext};
6220 # Called to ask whether source files have been seen . If HEADERS is 1,
6221 # headers can be included.
6226 # count all the sources
6228 foreach my $val (values %extension_seen)
6235 $count -= count_files_for_language ('header');
6242 # register_language (%ATTRIBUTE)
6243 # ------------------------------
6244 # Register a single language.
6245 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6246 sub register_language (%)
6252 unless defined $option{'ansi'};
6253 $option{'autodep'} = 'no'
6254 unless defined $option{'autodep'};
6255 $option{'linker'} = ''
6256 unless defined $option{'linker'};
6257 $option{'flags'} = []
6258 unless defined $option{'flags'};
6259 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6260 unless defined $option{'output_extensions'};
6261 $option{'nodist_specific'} = 0
6262 unless defined $option{'nodist_specific'};
6264 my $lang = new Language (%option);
6267 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6268 $languages{$lang->name} = $lang;
6269 my $link = $lang->linker;
6272 if (exists $link_languages{$link})
6274 prog_error ("`$link' has different definitions in "
6275 . $lang->name . " and " . $link_languages{$link}->name)
6276 if $lang->link ne $link_languages{$link}->link;
6280 $link_languages{$link} = $lang;
6284 # Update the pattern of known extensions.
6285 accept_extensions (@{$lang->extensions});
6287 # Upate the $suffix_rule map.
6288 foreach my $suffix (@{$lang->extensions})
6290 foreach my $dest (&{$lang->output_extensions} ($suffix))
6292 register_suffix_rule (INTERNAL, $suffix, $dest);
6297 # derive_suffix ($EXT, $OBJ)
6298 # --------------------------
6299 # This function is used to find a path from a user-specified suffix $EXT
6300 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6301 sub derive_suffix ($$)
6303 my ($source_ext, $obj) = @_;
6305 while (! $extension_map{$source_ext}
6306 && $source_ext ne $obj
6307 && exists $suffix_rules->{$source_ext}
6308 && exists $suffix_rules->{$source_ext}{$obj})
6310 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6317 ################################################################
6319 # Pretty-print something and append to output_rules.
6320 sub pretty_print_rule
6322 $output_rules .= &makefile_wrap (@_);
6326 ################################################################
6329 ## -------------------------------- ##
6330 ## Handling the conditional stack. ##
6331 ## -------------------------------- ##
6335 # make_conditional_string ($NEGATE, $COND)
6336 # ----------------------------------------
6337 sub make_conditional_string ($$)
6339 my ($negate, $cond) = @_;
6340 $cond = "${cond}_TRUE"
6341 unless $cond =~ /^TRUE|FALSE$/;
6342 $cond = Automake::Condition::conditional_negate ($cond)
6348 my %_am_macro_for_cond =
6350 AMDEP => "one of the compiler tests\n"
6351 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6352 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6353 am__fastdepCC => 'AC_PROG_CC',
6354 am__fastdepCCAS => 'AM_PROG_AS',
6355 am__fastdepCXX => 'AC_PROG_CXX',
6356 am__fastdepGCJ => 'AM_PROG_GCJ',
6357 am__fastdepOBJC => 'AC_PROG_OBJC',
6358 am__fastdepUPC => 'AM_PROG_UPC'
6362 # cond_stack_if ($NEGATE, $COND, $WHERE)
6363 # --------------------------------------
6364 sub cond_stack_if ($$$)
6366 my ($negate, $cond, $where) = @_;
6368 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6370 my $text = "$cond does not appear in AM_CONDITIONAL";
6371 my $scope = US_LOCAL;
6372 if (exists $_am_macro_for_cond{$cond})
6374 my $mac = $_am_macro_for_cond{$cond};
6375 $text .= "\n The usual way to define `$cond' is to add ";
6376 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6377 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6378 # These warnings appear in Automake files (depend2.am),
6379 # so there is no need to display them more than once:
6382 error $where, $text, uniq_scope => $scope;
6385 push (@cond_stack, make_conditional_string ($negate, $cond));
6387 return new Automake::Condition (@cond_stack);
6392 # cond_stack_else ($NEGATE, $COND, $WHERE)
6393 # ----------------------------------------
6394 sub cond_stack_else ($$$)
6396 my ($negate, $cond, $where) = @_;
6400 error $where, "else without if";
6404 $cond_stack[$#cond_stack] =
6405 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6407 # If $COND is given, check against it.
6410 $cond = make_conditional_string ($negate, $cond);
6412 error ($where, "else reminder ($negate$cond) incompatible with "
6413 . "current conditional: $cond_stack[$#cond_stack]")
6414 if $cond_stack[$#cond_stack] ne $cond;
6417 return new Automake::Condition (@cond_stack);
6422 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6423 # -----------------------------------------
6424 sub cond_stack_endif ($$$)
6426 my ($negate, $cond, $where) = @_;
6431 error $where, "endif without if";
6435 # If $COND is given, check against it.
6438 $cond = make_conditional_string ($negate, $cond);
6440 error ($where, "endif reminder ($negate$cond) incompatible with "
6441 . "current conditional: $cond_stack[$#cond_stack]")
6442 if $cond_stack[$#cond_stack] ne $cond;
6447 return new Automake::Condition (@cond_stack);
6454 ## ------------------------ ##
6455 ## Handling the variables. ##
6456 ## ------------------------ ##
6459 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6460 # -----------------------------------------------------
6461 # Like define_variable, but the value is a list, and the variable may
6462 # be defined conditionally. The second argument is the condition
6463 # under which the value should be defined; this should be the empty
6464 # string to define the variable unconditionally. The third argument
6465 # is a list holding the values to use for the variable. The value is
6466 # pretty printed in the output file.
6467 sub define_pretty_variable ($$$@)
6469 my ($var, $cond, $where, @value) = @_;
6471 if (! vardef ($var, $cond))
6473 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6474 '', $where, VAR_PRETTY);
6475 rvar ($var)->rdef ($cond)->set_seen;
6480 # define_variable ($VAR, $VALUE, $WHERE)
6481 # --------------------------------------
6482 # Define a new Automake Makefile variable VAR to VALUE, but only if
6483 # not already defined.
6484 sub define_variable ($$$)
6486 my ($var, $value, $where) = @_;
6487 define_pretty_variable ($var, TRUE, $where, $value);
6491 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6492 # ------------------------------------------------------------
6493 # Define the $VAR which content is the list of file names composed of
6494 # a @BASENAME and the $EXTENSION.
6495 sub define_files_variable ($\@$$)
6497 my ($var, $basename, $extension, $where) = @_;
6498 define_variable ($var,
6499 join (' ', map { "$_.$extension" } @$basename),
6504 # Like define_variable, but define a variable to be the configure
6505 # substitution by the same name.
6506 sub define_configure_variable ($)
6510 my $pretty = VAR_ASIS;
6511 my $owner = VAR_CONFIGURE;
6513 # Some variables we do not want to output. For instance it
6514 # would be a bad idea to output `U = @U@` when `@U@` can be
6515 # substituted as `\`.
6516 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6518 # ANSI2KNR is a variable that Automake wants to redefine, so
6519 # it must be owned by Automake. (It is also used as a proof
6520 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6521 # omit the AC_SUBST.)
6522 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6524 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6525 '', $configure_vars{$var}, $pretty);
6529 # define_compiler_variable ($LANG)
6530 # --------------------------------
6531 # Define a compiler variable. We also handle defining the `LT'
6532 # version of the command when using libtool.
6533 sub define_compiler_variable ($)
6537 my ($var, $value) = ($lang->compiler, $lang->compile);
6538 my $libtool_tag = '';
6539 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6540 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6541 &define_variable ($var, $value, INTERNAL);
6542 if (var ('LIBTOOL'))
6544 my $verbose = define_verbose_libtool ();
6545 &define_variable ("LT$var",
6546 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6547 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6550 define_verbose_tagvar ($lang->ccer || 'GEN');
6554 # define_linker_variable ($LANG)
6555 # ------------------------------
6556 # Define linker variables.
6557 sub define_linker_variable ($)
6561 my $libtool_tag = '';
6562 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6563 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6565 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6566 # CCLINK = $(CCLD) blah blah...
6568 if (var ('LIBTOOL'))
6570 my $verbose = define_verbose_libtool ();
6571 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6572 . "\$(LIBTOOLFLAGS) --mode=link ";
6574 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6575 &define_variable ($lang->compiler, $lang);
6576 &define_verbose_tagvar ($lang->lder || 'GEN');
6579 sub define_per_target_linker_variable ($$)
6581 my ($linker, $target) = @_;
6583 # If the user wrote a custom link command, we don't define ours.
6584 return "${target}_LINK"
6585 if set_seen "${target}_LINK";
6587 my $xlink = $linker ? $linker : 'LINK';
6589 my $lang = $link_languages{$xlink};
6590 prog_error "Unknown language for linker variable `$xlink'"
6593 my $link_command = $lang->link;
6596 my $libtool_tag = '';
6597 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6598 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6600 my $verbose = define_verbose_libtool ();
6602 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6603 . "--mode=link " . $link_command;
6606 # Rewrite each occurrence of `AM_$flag' in the link
6607 # command into `${derived}_$flag' if it exists.
6608 my $orig_command = $link_command;
6609 my @flags = (@{$lang->flags}, 'LDFLAGS');
6610 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6611 for my $flag (@flags)
6613 my $val = "${target}_$flag";
6614 $link_command =~ s/\(AM_$flag\)/\($val\)/
6618 # If the computed command is the same as the generic command, use
6619 # the command linker variable.
6620 return ($lang->linker, $lang->lder)
6621 if $link_command eq $orig_command;
6623 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6624 return ("${target}_LINK", $lang->lder);
6627 ################################################################
6629 # &check_trailing_slash ($WHERE, $LINE)
6630 # -------------------------------------
6631 # Return 1 iff $LINE ends with a slash.
6632 # Might modify $LINE.
6633 sub check_trailing_slash ($\$)
6635 my ($where, $line) = @_;
6637 # Ignore `##' lines.
6638 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6640 # Catch and fix a common error.
6641 msg "syntax", $where, "whitespace following trailing backslash"
6642 if $$line =~ s/\\\s+\n$/\\\n/;
6644 return $$line =~ /\\$/;
6648 # &read_am_file ($AMFILE, $WHERE)
6649 # -------------------------------
6650 # Read Makefile.am and set up %contents. Simultaneously copy lines
6651 # from Makefile.am into $output_trailer, or define variables as
6652 # appropriate. NOTE we put rules in the trailer section. We want
6653 # user rules to come after our generated stuff.
6654 sub read_am_file ($$)
6656 my ($amfile, $where) = @_;
6658 my $am_file = new Automake::XFile ("< $amfile");
6659 verb "reading $amfile";
6661 # Keep track of the youngest output dependency.
6662 my $mtime = mtime $amfile;
6663 $output_deps_greatest_timestamp = $mtime
6664 if $mtime > $output_deps_greatest_timestamp;
6670 my $var_look = VAR_ASIS;
6672 use constant IN_VAR_DEF => 0;
6673 use constant IN_RULE_DEF => 1;
6674 use constant IN_COMMENT => 2;
6675 my $prev_state = IN_RULE_DEF;
6677 while ($_ = $am_file->getline)
6679 $where->set ("$amfile:$.");
6680 if (/$IGNORE_PATTERN/o)
6682 # Merely delete comments beginning with two hashes.
6684 elsif (/$WHITE_PATTERN/o)
6686 error $where, "blank line following trailing backslash"
6688 # Stick a single white line before the incoming macro or rule.
6691 # Flush all comments seen so far.
6694 $output_vars .= $comment;
6698 elsif (/$COMMENT_PATTERN/o)
6700 # Stick comments before the incoming macro or rule. Make
6701 # sure a blank line precedes the first block of comments.
6702 $spacing = "\n" unless $blank;
6704 $comment .= $spacing . $_;
6706 $prev_state = IN_COMMENT;
6712 $saw_bk = check_trailing_slash ($where, $_);
6715 # We save the conditional stack on entry, and then check to make
6716 # sure it is the same on exit. This lets us conditionally include
6718 my @saved_cond_stack = @cond_stack;
6719 my $cond = new Automake::Condition (@cond_stack);
6721 my $last_var_name = '';
6722 my $last_var_type = '';
6723 my $last_var_value = '';
6725 # FIXME: shouldn't use $_ in this loop; it is too big.
6728 $where->set ("$amfile:$.");
6730 # Make sure the line is \n-terminated.
6734 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6735 # used by users. @MAINT@ is an anachronism now.
6736 $_ =~ s/\@MAINT\@//g
6737 unless $seen_maint_mode;
6739 my $new_saw_bk = check_trailing_slash ($where, $_);
6741 if (/$IGNORE_PATTERN/o)
6743 # Merely delete comments beginning with two hashes.
6745 # Keep any backslash from the previous line.
6746 $new_saw_bk = $saw_bk;
6748 elsif (/$WHITE_PATTERN/o)
6750 # Stick a single white line before the incoming macro or rule.
6752 error $where, "blank line following trailing backslash"
6755 elsif (/$COMMENT_PATTERN/o)
6757 error $where, "comment following trailing backslash"
6758 if $saw_bk && $prev_state != IN_COMMENT;
6760 # Stick comments before the incoming macro or rule.
6761 $comment .= $spacing . $_;
6763 $prev_state = IN_COMMENT;
6767 if ($prev_state == IN_RULE_DEF)
6769 my $cond = new Automake::Condition @cond_stack;
6770 $output_trailer .= $cond->subst_string;
6771 $output_trailer .= $_;
6773 elsif ($prev_state == IN_COMMENT)
6775 # If the line doesn't start with a `#', add it.
6776 # We do this because a continued comment like
6780 # is not portable. BSD make doesn't honor
6781 # escaped newlines in comments.
6783 $comment .= $spacing . $_;
6785 else # $prev_state == IN_VAR_DEF
6787 $last_var_value .= ' '
6788 unless $last_var_value =~ /\s$/;
6789 $last_var_value .= $_;
6793 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6794 $last_var_type, $cond,
6795 $last_var_value, $comment,
6796 $last_where, VAR_ASIS)
6798 $comment = $spacing = '';
6803 elsif (/$IF_PATTERN/o)
6805 $cond = cond_stack_if ($1, $2, $where);
6807 elsif (/$ELSE_PATTERN/o)
6809 $cond = cond_stack_else ($1, $2, $where);
6811 elsif (/$ENDIF_PATTERN/o)
6813 $cond = cond_stack_endif ($1, $2, $where);
6816 elsif (/$RULE_PATTERN/o)
6819 $prev_state = IN_RULE_DEF;
6821 # For now we have to output all definitions of user rules
6822 # and can't diagnose duplicates (see the comment in
6823 # Automake::Rule::define). So we go on and ignore the return value.
6824 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6826 check_variable_expansions ($_, $where);
6828 $output_trailer .= $comment . $spacing;
6829 my $cond = new Automake::Condition @cond_stack;
6830 $output_trailer .= $cond->subst_string;
6831 $output_trailer .= $_;
6832 $comment = $spacing = '';
6834 elsif (/$ASSIGNMENT_PATTERN/o)
6836 # Found a macro definition.
6837 $prev_state = IN_VAR_DEF;
6838 $last_var_name = $1;
6839 $last_var_type = $2;
6840 $last_var_value = $3;
6841 $last_where = $where->clone;
6842 if ($3 ne '' && substr ($3, -1) eq "\\")
6844 # We preserve the `\' because otherwise the long lines
6845 # that are generated will be truncated by broken
6847 $last_var_value = $3 . "\n";
6849 # Normally we try to output variable definitions in the
6850 # same format they were input. However, POSIX compliant
6851 # systems are not required to support lines longer than
6852 # 2048 bytes (most notably, some sed implementation are
6853 # limited to 4000 bytes, and sed is used by config.status
6854 # to rewrite Makefile.in into Makefile). Moreover nobody
6855 # would really write such long lines by hand since it is
6856 # hardly maintainable. So if a line is longer that 1000
6857 # bytes (an arbitrary limit), assume it has been
6858 # automatically generated by some tools, and flatten the
6859 # variable definition. Otherwise, keep the variable as it
6861 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6865 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6866 $last_var_type, $cond,
6867 $last_var_value, $comment,
6868 $last_where, $var_look)
6870 $comment = $spacing = '';
6871 $var_look = VAR_ASIS;
6874 elsif (/$INCLUDE_PATTERN/o)
6878 if ($path =~ s/^\$\(top_srcdir\)\///)
6880 push (@include_stack, "\$\(top_srcdir\)/$path");
6881 # Distribute any included file.
6883 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6884 # otherwise OSF make will implicitly copy the included
6885 # file in the build tree during `make distdir' to satisfy
6887 # (subdircond2.test and subdircond3.test will fail.)
6888 push_dist_common ("\$\(top_srcdir\)/$path");
6892 $path =~ s/\$\(srcdir\)\///;
6893 push (@include_stack, "\$\(srcdir\)/$path");
6894 # Always use the $(srcdir) prefix in DIST_COMMON,
6895 # otherwise OSF make will implicitly copy the included
6896 # file in the build tree during `make distdir' to satisfy
6898 # (subdircond2.test and subdircond3.test will fail.)
6899 push_dist_common ("\$\(srcdir\)/$path");
6900 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6902 $where->push_context ("`$path' included from here");
6903 &read_am_file ($path, $where);
6904 $where->pop_context;
6908 # This isn't an error; it is probably a continued rule.
6909 # In fact, this is what we assume.
6910 $prev_state = IN_RULE_DEF;
6911 check_variable_expansions ($_, $where);
6912 $output_trailer .= $comment . $spacing;
6913 my $cond = new Automake::Condition @cond_stack;
6914 $output_trailer .= $cond->subst_string;
6915 $output_trailer .= $_;
6916 $comment = $spacing = '';
6917 error $where, "`#' comment at start of rule is unportable"
6918 if $_ =~ /^\t\s*\#/;
6921 $saw_bk = $new_saw_bk;
6922 $_ = $am_file->getline;
6925 $output_trailer .= $comment;
6927 error ($where, "trailing backslash on last line")
6930 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6931 : "too many conditionals closed in include file"))
6932 if "@saved_cond_stack" ne "@cond_stack";
6936 # define_standard_variables ()
6937 # ----------------------------
6938 # A helper for read_main_am_file which initializes configure variables
6939 # and variables from header-vars.am.
6940 sub define_standard_variables
6942 my $saved_output_vars = $output_vars;
6943 my ($comments, undef, $rules) =
6944 file_contents_internal (1, "$libdir/am/header-vars.am",
6945 new Automake::Location);
6947 foreach my $var (sort keys %configure_vars)
6949 &define_configure_variable ($var);
6952 $output_vars .= $comments . $rules;
6955 # Read main am file.
6956 sub read_main_am_file
6960 # This supports the strange variable tricks we are about to play.
6961 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6962 if (scalar (variables) > 0);
6964 # Generate copyright header for generated Makefile.in.
6965 # We do discard the output of predefined variables, handled below.
6966 $output_vars = ("# $in_file_name generated by automake "
6967 . $VERSION . " from $am_file_name.\n");
6968 $output_vars .= '# ' . subst ('configure_input') . "\n";
6969 $output_vars .= $gen_copyright;
6971 # We want to predefine as many variables as possible. This lets
6972 # the user set them with `+=' in Makefile.am.
6973 &define_standard_variables;
6975 # Read user file, which might override some of our values.
6976 &read_am_file ($amfile, new Automake::Location);
6981 ################################################################
6984 # &flatten ($STRING)
6985 # ------------------
6986 # Flatten the $STRING and return the result.
7000 # transform_token ($TOKEN, \%PAIRS, $KEY)
7001 # =======================================
7002 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
7003 # (which should be ?KEY? or any of the special %% requests)..
7004 sub transform_token ($$$)
7006 my ($token, $transform, $key) = @_;
7007 my $res = $transform->{$key};
7008 prog_error "Unknown key `$key' in `$token'" unless defined $res;
7013 # transform ($TOKEN, \%PAIRS)
7014 # ===========================
7015 # If ($TOKEN, $VAL) is in %PAIRS:
7016 # - replaces %KEY% with $VAL,
7017 # - enables/disables ?KEY? and ?!KEY?,
7018 # - replaces %?KEY% with TRUE or FALSE.
7019 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
7020 # IFTRUE / IFFALSE, as appropriate.
7023 my ($token, $transform) = @_;
7026 # Must be before the following pattern to exclude the case
7027 # when there is neither IFTRUE nor IFFALSE.
7028 if ($token =~ /^%([\w\-]+)%$/)
7030 return transform_token ($token, $transform, $1);
7032 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
7033 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
7035 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
7038 elsif ($token =~ /^%\?([\w\-]+)%$/)
7040 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
7043 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
7045 my $neg = ($1 eq '!') ? 1 : 0;
7046 my $val = transform_token ($token, $transform, $2);
7047 return (!!$val == $neg) ? '##%' : '';
7051 prog_error "Unknown request format: $token";
7057 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7058 # ------------------------------------------
7059 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7061 sub make_paragraphs ($%)
7063 my ($file, %transform) = @_;
7065 # Complete %transform with global options.
7066 # Note that %transform goes last, so it overrides global options.
7067 %transform = ('CYGNUS' => !! option 'cygnus',
7069 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7071 'XZ' => !! option 'dist-xz',
7072 'LZMA' => !! option 'dist-lzma',
7073 'BZIP2' => !! option 'dist-bzip2',
7074 'COMPRESS' => !! option 'dist-tarZ',
7075 'GZIP' => ! option 'no-dist-gzip',
7076 'SHAR' => !! option 'dist-shar',
7077 'ZIP' => !! option 'dist-zip',
7079 'INSTALL-INFO' => ! option 'no-installinfo',
7080 'INSTALL-MAN' => ! option 'no-installman',
7081 'HAVE-MANS' => !! var ('MANS'),
7082 'CK-NEWS' => !! option 'check-news',
7084 'SUBDIRS' => !! var ('SUBDIRS'),
7085 'TOPDIR_P' => $relative_dir eq '.',
7087 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7088 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7089 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7091 'LIBTOOL' => !! var ('LIBTOOL'),
7093 'FIRST' => ! $transformed_files{$file},
7096 $transformed_files{$file} = 1;
7097 $_ = $am_file_cache{$file};
7101 verb "reading $file";
7102 # Swallow the whole file.
7103 my $fc_file = new Automake::XFile "< $file";
7104 my $saved_dollar_slash = $/;
7106 $_ = $fc_file->getline;
7107 $/ = $saved_dollar_slash;
7110 # Remove ##-comments.
7111 # Besides we don't need more than two consecutive new-lines.
7112 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7114 $am_file_cache{$file} = $_;
7117 # Substitute Automake template tokens.
7118 s/(?: % \?? [\w\-]+ %
7119 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7121 )/transform($&, \%transform)/gex;
7122 # transform() may have added some ##%-comments to strip.
7123 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7124 # ####### and do not remove the latter.)
7125 s/^[ \t]*(?:##%)+.*\n//gm;
7127 # Split at unescaped new lines.
7128 my @lines = split (/(?<!\\)\n/, $_);
7131 while (defined ($_ = shift @lines))
7134 # If we are a rule, eat as long as we start with a tab.
7135 if (/$RULE_PATTERN/smo)
7137 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7139 $paragraph .= "\n$_";
7141 unshift (@lines, $_);
7144 # If we are a comments, eat as much comments as you can.
7145 elsif (/$COMMENT_PATTERN/smo)
7147 while (defined ($_ = shift @lines)
7148 && $_ =~ /$COMMENT_PATTERN/smo)
7150 $paragraph .= "\n$_";
7152 unshift (@lines, $_);
7155 push @res, $paragraph;
7163 # ($COMMENT, $VARIABLES, $RULES)
7164 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7165 # -------------------------------------------------------------
7166 # Return contents of a file from $libdir/am, automatically skipping
7167 # macros or rules which are already known. $IS_AM iff the caller is
7168 # reading an Automake file (as opposed to the user's Makefile.am).
7169 sub file_contents_internal ($$$%)
7171 my ($is_am, $file, $where, %transform) = @_;
7173 $where->set ($file);
7175 my $result_vars = '';
7176 my $result_rules = '';
7180 # The following flags are used to track rules spanning across
7181 # multiple paragraphs.
7182 my $is_rule = 0; # 1 if we are processing a rule.
7183 my $discard_rule = 0; # 1 if the current rule should not be output.
7185 # We save the conditional stack on entry, and then check to make
7186 # sure it is the same on exit. This lets us conditionally include
7188 my @saved_cond_stack = @cond_stack;
7189 my $cond = new Automake::Condition (@cond_stack);
7191 foreach (make_paragraphs ($file, %transform))
7193 # FIXME: no line number available.
7194 $where->set ($file);
7197 error $where, "blank line following trailing backslash:\n$_"
7199 error $where, "comment following trailing backslash:\n$_"
7205 # Stick empty line before the incoming macro or rule.
7208 elsif (/$COMMENT_PATTERN/mso)
7211 # Stick comments before the incoming macro or rule.
7215 # Handle inclusion of other files.
7216 elsif (/$INCLUDE_PATTERN/o)
7220 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7221 $where->push_context ("`$file' included from here");
7223 my ($com, $vars, $rules)
7224 = file_contents_internal ($is_am, $file, $where, %transform);
7225 $where->pop_context;
7227 $result_vars .= $vars;
7228 $result_rules .= $rules;
7232 # Handling the conditionals.
7233 elsif (/$IF_PATTERN/o)
7235 $cond = cond_stack_if ($1, $2, $file);
7237 elsif (/$ELSE_PATTERN/o)
7239 $cond = cond_stack_else ($1, $2, $file);
7241 elsif (/$ENDIF_PATTERN/o)
7243 $cond = cond_stack_endif ($1, $2, $file);
7247 elsif (/$RULE_PATTERN/mso)
7251 # Separate relationship from optional actions: the first
7252 # `new-line tab" not preceded by backslash (continuation
7255 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7256 my ($relationship, $actions) = ($1, $2 || '');
7258 # Separate targets from dependencies: the first colon.
7259 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7260 my ($targets, $dependencies) = ($1, $2);
7261 # Remove the escaped new lines.
7262 # I don't know why, but I have to use a tmp $flat_deps.
7263 my $flat_deps = &flatten ($dependencies);
7264 my @deps = split (' ', $flat_deps);
7266 foreach (split (' ', $targets))
7268 # FIXME: 1. We are not robust to people defining several targets
7269 # at once, only some of them being in %dependencies. The
7270 # actions from the targets in %dependencies are usually generated
7271 # from the content of %actions, but if some targets in $targets
7272 # are not in %dependencies the ELSE branch will output
7273 # a rule for all $targets (i.e. the targets which are both
7274 # in %dependencies and $targets will have two rules).
7276 # FIXME: 2. The logic here is not able to output a
7277 # multi-paragraph rule several time (e.g. for each condition
7278 # it is defined for) because it only knows the first paragraph.
7280 # FIXME: 3. We are not robust to people defining a subset
7281 # of a previously defined "multiple-target" rule. E.g.
7282 # `foo:' after `foo bar:'.
7284 # Output only if not in FALSE.
7285 if (defined $dependencies{$_} && $cond != FALSE)
7287 &depend ($_, @deps);
7288 register_action ($_, $actions);
7292 # Free-lance dependency. Output the rule for all the
7293 # targets instead of one by one.
7294 my @undefined_conds =
7295 Automake::Rule::define ($targets, $file,
7296 $is_am ? RULE_AUTOMAKE : RULE_USER,
7298 for my $undefined_cond (@undefined_conds)
7300 my $condparagraph = $paragraph;
7301 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7302 $result_rules .= "$spacing$comment$condparagraph\n";
7304 if (scalar @undefined_conds == 0)
7306 # Remember to discard next paragraphs
7307 # if they belong to this rule.
7308 # (but see also FIXME: #2 above.)
7311 $comment = $spacing = '';
7317 elsif (/$ASSIGNMENT_PATTERN/mso)
7319 my ($var, $type, $val) = ($1, $2, $3);
7320 error $where, "variable `$var' with trailing backslash"
7325 Automake::Variable::define ($var,
7326 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7327 $type, $cond, $val, $comment, $where,
7331 $comment = $spacing = '';
7335 # This isn't an error; it is probably some tokens which
7336 # configure is supposed to replace, such as `@SET-MAKE@',
7337 # or some part of a rule cut by an if/endif.
7338 if (! $cond->false && ! ($is_rule && $discard_rule))
7340 s/^/$cond->subst_string/gme;
7341 $result_rules .= "$spacing$comment$_\n";
7343 $comment = $spacing = '';
7347 error ($where, @cond_stack ?
7348 "unterminated conditionals: @cond_stack" :
7349 "too many conditionals closed in include file")
7350 if "@saved_cond_stack" ne "@cond_stack";
7352 return ($comment, $result_vars, $result_rules);
7357 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7358 # ------------------------------------------------
7359 # Return contents of a file from $libdir/am, automatically skipping
7360 # macros or rules which are already known.
7361 sub file_contents ($$%)
7363 my ($basename, $where, %transform) = @_;
7364 my ($comments, $variables, $rules) =
7365 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7367 return "$comments$variables$rules";
7372 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7373 # -----------------------------------------------------
7374 # Find all variable prefixes that are used for install directories. A
7375 # prefix `zar' qualifies iff:
7377 # * `zardir' is a variable.
7378 # * `zar_PRIMARY' is a variable.
7380 # As a side effect, it looks for misspellings. It is an error to have
7381 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7382 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7383 # of the same name (with "dir" appended) exists. For instance, if the
7384 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7385 # This is to provide a little extra flexibility in those cases which
7387 sub am_primary_prefixes ($$@)
7389 my ($primary, $can_dist, @prefixes) = @_;
7392 my %valid = map { $_ => 0 } @prefixes;
7393 $valid{'EXTRA'} = 0;
7394 foreach my $var (variables $primary)
7396 # Automake is allowed to define variables that look like primaries
7397 # but which aren't. E.g. INSTALL_sh_DATA.
7398 # Autoconf can also define variables like INSTALL_DATA, so
7399 # ignore all configure variables (at least those which are not
7400 # redefined in Makefile.am).
7401 # FIXME: We should make sure that these variables are not
7402 # conditionally defined (or else adjust the condition below).
7403 my $def = $var->def (TRUE);
7404 next if $def && $def->owner != VAR_MAKEFILE;
7406 my $varname = $var->name;
7408 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7410 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7411 if ($dist ne '' && ! $can_dist)
7414 "invalid variable `$varname': `dist' is forbidden");
7416 # Standard directories must be explicitly allowed.
7417 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7420 "`${X}dir' is not a legitimate directory " .
7423 # A not explicitly valid directory is allowed if Xdir is defined.
7424 elsif (! defined $valid{$X} &&
7425 $var->requires_variables ("`$varname' is used", "${X}dir"))
7427 # Nothing to do. Any error message has been output
7428 # by $var->requires_variables.
7432 # Ensure all extended prefixes are actually used.
7433 $valid{"$base$dist$X"} = 1;
7438 prog_error "unexpected variable name: $varname";
7442 # Return only those which are actually defined.
7443 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7447 # Handle `where_HOW' variable magic. Does all lookups, generates
7448 # install code, and possibly generates code to define the primary
7449 # variable. The first argument is the name of the .am file to munge,
7450 # the second argument is the primary variable (e.g. HEADERS), and all
7451 # subsequent arguments are possible installation locations.
7453 # Returns list of [$location, $value] pairs, where
7454 # $value's are the values in all where_HOW variable, and $location
7455 # there associated location (the place here their parent variables were
7458 # FIXME: this should be rewritten to be cleaner. It should be broken
7459 # up into multiple functions.
7461 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7468 my $default_dist = 0;
7471 if ($args[0] eq '-noextra')
7475 elsif ($args[0] eq '-candist')
7479 elsif ($args[0] eq '-defaultdist')
7484 elsif ($args[0] !~ /^-/)
7491 my ($file, $primary, @prefix) = @args;
7493 # Now that configure substitutions are allowed in where_HOW
7494 # variables, it is an error to actually define the primary. We
7495 # allow `JAVA', as it is customarily used to mean the Java
7496 # interpreter. This is but one of several Java hacks. Similarly,
7497 # `PYTHON' is customarily used to mean the Python interpreter.
7498 reject_var $primary, "`$primary' is an anachronism"
7499 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7501 # Get the prefixes which are valid and actually used.
7502 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7504 # If a primary includes a configure substitution, then the EXTRA_
7505 # form is required. Otherwise we can't properly do our job.
7511 foreach my $X (@prefix)
7513 my $nodir_name = $X;
7514 my $one_name = $X . '_' . $primary;
7515 my $one_var = var $one_name;
7517 my $strip_subdir = 1;
7518 # If subdir prefix should be preserved, do so.
7519 if ($nodir_name =~ /^nobase_/)
7522 $nodir_name =~ s/^nobase_//;
7525 # If files should be distributed, do so.
7529 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7530 || (! $default_dist && $nodir_name =~ /^dist_/));
7531 $nodir_name =~ s/^(dist|nodist)_//;
7535 # Use the location of the currently processed variable.
7536 # We are not processing a particular condition, so pick the first
7538 my $tmpcond = $one_var->conditions->one_cond;
7539 my $where = $one_var->rdef ($tmpcond)->location->clone;
7541 # Append actual contents of where_PRIMARY variable to
7542 # @result, skipping @substitutions@.
7543 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7545 my ($loc, $value) = @$locvals;
7546 # Skip configure substitutions.
7547 if ($value =~ /^\@.*\@$/)
7549 if ($nodir_name eq 'EXTRA')
7552 "`$one_name' contains configure substitution, "
7555 # Check here to make sure variables defined in
7556 # configure.ac do not imply that EXTRA_PRIMARY
7558 elsif (! defined $configure_vars{$one_name})
7560 $require_extra = $one_name
7566 # Strip any $(EXEEXT) suffix the user might have added, or this
7567 # will confuse &handle_source_transform and &check_canonical_spelling.
7568 # We'll add $(EXEEXT) back later anyway.
7569 # Do it here rather than in handle_programs so the uniquifying at the
7570 # end of this function works.
7571 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7572 if $primary eq 'PROGRAMS';
7574 push (@result, $locvals);
7577 # A blatant hack: we rewrite each _PROGRAMS primary to include
7579 append_exeext { 1 } $one_name
7580 if $primary eq 'PROGRAMS';
7581 # "EXTRA" shouldn't be used when generating clean targets,
7582 # all, or install targets. We used to warn if EXTRA_FOO was
7583 # defined uselessly, but this was annoying.
7585 if $nodir_name eq 'EXTRA';
7587 if ($nodir_name eq 'check')
7589 push (@check, '$(' . $one_name . ')');
7593 push (@used, '$(' . $one_name . ')');
7596 # Is this to be installed?
7597 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7599 # If so, with install-exec? (or install-data?).
7600 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7602 my $check_options_p = $install_p && !! option 'std-options';
7604 # Use the location of the currently processed variable as context.
7605 $where->push_context ("while processing `$one_name'");
7607 # The variable containing all files to distribute.
7608 my $distvar = "\$($one_name)";
7609 $distvar = shadow_unconditionally ($one_name, $where)
7610 if ($dist_p && $one_var->has_conditional_contents);
7612 # Singular form of $PRIMARY.
7613 (my $one_primary = $primary) =~ s/S$//;
7614 $output_rules .= &file_contents ($file, $where,
7615 PRIMARY => $primary,
7616 ONE_PRIMARY => $one_primary,
7618 NDIR => $nodir_name,
7619 BASE => $strip_subdir,
7622 INSTALL => $install_p,
7624 DISTVAR => $distvar,
7625 'CK-OPTS' => $check_options_p);
7628 # The JAVA variable is used as the name of the Java interpreter.
7629 # The PYTHON variable is used as the name of the Python interpreter.
7630 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7633 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7634 $output_vars .= "\n";
7637 err_var ($require_extra,
7638 "`$require_extra' contains configure substitution,\n"
7639 . "but `EXTRA_$primary' not defined")
7640 if ($require_extra && ! var ('EXTRA_' . $primary));
7642 # Push here because PRIMARY might be configure time determined.
7643 push (@all, '$(' . $primary . ')')
7644 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7646 # Make the result unique. This lets the user use conditionals in
7647 # a natural way, but still lets us program lazily -- we don't have
7648 # to worry about handling a particular object more than once.
7649 # We will keep only one location per object.
7651 for my $pair (@result)
7653 my ($loc, $val) = @$pair;
7654 $result{$val} = $loc;
7656 my @l = sort keys %result;
7657 return map { [$result{$_}->clone, $_] } @l;
7661 ################################################################
7663 # Each key in this hash is the name of a directory holding a
7664 # Makefile.in. These variables are local to `is_make_dir'.
7666 my $make_dirs_set = 0;
7671 if (! $make_dirs_set)
7673 foreach my $iter (@configure_input_files)
7675 $make_dirs{dirname ($iter)} = 1;
7677 # We also want to notice Makefile.in's.
7678 foreach my $iter (@other_input_files)
7680 if ($iter =~ /Makefile\.in$/)
7682 $make_dirs{dirname ($iter)} = 1;
7687 return defined $make_dirs{$dir};
7690 ################################################################
7692 # Find the aux dir. This should match the algorithm used by
7693 # ./configure. (See the Autoconf documentation for for
7694 # AC_CONFIG_AUX_DIR.)
7695 sub locate_aux_dir ()
7697 if (! $config_aux_dir_set_in_configure_ac)
7699 # The default auxiliary directory is the first
7700 # of ., .., or ../.. that contains install-sh.
7701 # Assume . if install-sh doesn't exist yet.
7702 for my $dir (qw (. .. ../..))
7704 if (-f "$dir/install-sh")
7706 $config_aux_dir = $dir;
7710 $config_aux_dir = '.' unless $config_aux_dir;
7712 # Avoid unsightly '/.'s.
7713 $am_config_aux_dir =
7714 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7715 $am_config_aux_dir =~ s,/*$,,;
7719 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7720 # --------------------------------------------------
7721 # See if we want to push this file onto dist_common. This function
7722 # encodes the rules for deciding when to do so.
7723 sub maybe_push_required_file
7725 my ($dir, $file, $fullfile) = @_;
7727 if ($dir eq $relative_dir)
7729 push_dist_common ($file);
7732 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7734 # If we are doing the topmost directory, and the file is in a
7735 # subdir which does not have a Makefile, then we distribute it
7738 # If a required file is above the source tree, it is important
7739 # to prefix it with `$(srcdir)' so that no VPATH search is
7740 # performed. Otherwise problems occur with Make implementations
7741 # that rewrite and simplify rules whose dependencies are found in a
7742 # VPATH location. Here is an example with OSF1/Tru64 Make.
7754 # Dependency `../a' was found in `sub/../a', but this make
7755 # implementation simplified it as `a'. (Note that the sub/
7756 # directory does not even exist.)
7758 # This kind of VPATH rewriting seems hard to cancel. The
7759 # distdir.am hack against VPATH rewriting works only when no
7760 # simplification is done, i.e., for dependencies which are in
7761 # subdirectories, not in enclosing directories. Hence, in
7762 # the latter case we use a full path to make sure no VPATH
7764 $fullfile = '$(srcdir)/' . $fullfile
7765 if $dir =~ m,^\.\.(?:$|/),;
7767 push_dist_common ($fullfile);
7774 # If a file name appears as a key in this hash, then it has already
7775 # been checked for. This allows us not to report the same error more
7777 my %required_file_not_found = ();
7779 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7780 # --------------------------------------------------------------
7781 # Verify that the file must exist in $DIRECTORY, or install it.
7782 # $MYSTRICT is the strictness level at which this file becomes required.
7783 sub require_file_internal ($$$@)
7785 my ($where, $mystrict, $dir, @files) = @_;
7787 foreach my $file (@files)
7789 my $fullfile = "$dir/$file";
7791 my $dangling_sym = 0;
7793 if (-l $fullfile && ! -f $fullfile)
7797 elsif (dir_has_case_matching_file ($dir, $file))
7800 maybe_push_required_file ($dir, $file, $fullfile);
7803 # `--force-missing' only has an effect if `--add-missing' is
7805 if ($found_it && (! $add_missing || ! $force_missing))
7811 # If we've already looked for it, we're done. You might
7812 # wonder why we don't do this before searching for the
7813 # file. If we do that, then something like
7814 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7818 next if defined $required_file_not_found{$fullfile};
7819 $required_file_not_found{$fullfile} = 1;
7822 if ($strictness >= $mystrict)
7824 if ($dangling_sym && $add_missing)
7833 # Only install missing files according to our desired
7835 my $message = "required file `$fullfile' not found";
7838 if (-f "$libdir/$file")
7842 # Install the missing file. Symlink if we
7843 # can, copy if we must. Note: delete the file
7844 # first, in case it is a dangling symlink.
7845 $message = "installing `$fullfile'";
7847 # The license file should not be volatile.
7848 if ($file eq "COPYING")
7850 $message .= " using GNU General Public License v3 file";
7851 $trailer2 = "\n Consider adding the COPYING file"
7852 . " to the version control system"
7853 . "\n for your code, to avoid questions"
7854 . " about which license your project uses.";
7857 # Windows Perl will hang if we try to delete a
7858 # file that doesn't exist.
7859 unlink ($fullfile) if -f $fullfile;
7860 if ($symlink_exists && ! $copy_missing)
7862 if (! symlink ("$libdir/$file", $fullfile)
7866 $trailer = "; error while making link: $!";
7869 elsif (system ('cp', "$libdir/$file", $fullfile))
7872 $trailer = "\n error while copying";
7874 set_dir_cache_file ($dir, $file);
7877 if (! maybe_push_required_file (dirname ($fullfile),
7880 if (! $found_it && ! $automake_will_process_aux_dir)
7882 # We have added the file but could not push it
7883 # into DIST_COMMON, probably because this is
7884 # an auxiliary file and we are not processing
7885 # the top level Makefile. Furthermore Automake
7886 # hasn't been asked to create the Makefile.in
7887 # that distributes the aux dir files.
7888 error ($where, 'Please make a full run of automake'
7889 . " so $fullfile gets distributed.");
7895 $trailer = "\n `automake --add-missing' can install `$file'"
7896 if -f "$libdir/$file";
7899 # If --force-missing was specified, and we have
7900 # actually found the file, then do nothing.
7902 if $found_it && $force_missing;
7904 # If we couldn't install the file, but it is a target in
7905 # the Makefile, don't print anything. This allows files
7906 # like README, AUTHORS, or THANKS to be generated.
7908 if !$suppress && rule $file;
7910 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7916 # &require_file ($WHERE, $MYSTRICT, @FILES)
7917 # -----------------------------------------
7918 sub require_file ($$@)
7920 my ($where, $mystrict, @files) = @_;
7921 require_file_internal ($where, $mystrict, $relative_dir, @files);
7924 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7925 # -----------------------------------------------------------
7926 sub require_file_with_macro ($$$@)
7928 my ($cond, $macro, $mystrict, @files) = @_;
7929 $macro = rvar ($macro) unless ref $macro;
7930 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7933 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7934 # ----------------------------------------------------------------
7935 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7936 # must be in that directory. Otherwise expect it in the current directory.
7937 sub require_libsource_with_macro ($$$@)
7939 my ($cond, $macro, $mystrict, @files) = @_;
7940 $macro = rvar ($macro) unless ref $macro;
7941 if ($config_libobj_dir)
7943 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7944 $config_libobj_dir, @files);
7948 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7952 # Queue to push require_conf_file requirements to.
7953 my $required_conf_file_queue;
7955 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
7956 # -------------------------------------------------------------------------
7957 sub queue_required_conf_file ($$$$@)
7959 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7963 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7967 @serial_loc = (QUEUE_STRING, $where);
7969 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7972 # &require_queued_conf_file ($QUEUE)
7973 # ----------------------------------
7974 sub require_queued_conf_file ($)
7978 my $dir = $queue->dequeue ();
7979 my $loc_key = $queue->dequeue ();
7980 if ($loc_key eq QUEUE_LOCATION)
7982 $where = Automake::Location::deserialize ($queue);
7984 elsif ($loc_key eq QUEUE_STRING)
7986 $where = $queue->dequeue ();
7990 prog_error "unexpected key $loc_key";
7992 my $mystrict = $queue->dequeue ();
7993 my $nfiles = $queue->dequeue ();
7995 push @files, $queue->dequeue ()
7996 foreach (1 .. $nfiles);
7998 # Dequeuing happens outside of per-makefile context, so we have to
7999 # set the variables used by require_file_internal and the functions
8001 $relative_dir = $dir;
8002 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8005 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
8006 # ----------------------------------------------
8007 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
8008 # worker threads may queue up the action to be serialized by the master.
8010 # FIXME: this seriously relies on the semantics of require_file_internal
8011 # and maybe_push_required_file, in that we exploit the fact that only the
8012 # contents of the last handled output file may be impacted (which in turn
8013 # is dealt with by the master thread).
8014 sub require_conf_file ($$@)
8016 my ($where, $mystrict, @files) = @_;
8017 if (defined $required_conf_file_queue)
8019 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
8020 $relative_dir, $where, $mystrict, @files);
8024 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8029 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8030 # ----------------------------------------------------------------
8031 sub require_conf_file_with_macro ($$$@)
8033 my ($cond, $macro, $mystrict, @files) = @_;
8034 require_conf_file (rvar ($macro)->rdef ($cond)->location,
8038 ################################################################
8040 # &require_build_directory ($DIRECTORY)
8041 # -------------------------------------
8042 # Emit rules to create $DIRECTORY if needed, and return
8043 # the file that any target requiring this directory should be made
8045 # We don't want to emit the rule twice, and want to reuse it
8046 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
8047 sub require_build_directory ($)
8049 my $directory = shift;
8051 return $directory_map{$directory} if exists $directory_map{$directory};
8053 my $cdir = File::Spec->canonpath ($directory);
8055 if (exists $directory_map{$cdir})
8057 my $stamp = $directory_map{$cdir};
8058 $directory_map{$directory} = $stamp;
8062 my $dirstamp = "$cdir/\$(am__dirstamp)";
8064 $directory_map{$directory} = $dirstamp;
8065 $directory_map{$cdir} = $dirstamp;
8067 # Set a variable for the dirstamp basename.
8068 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8069 '$(am__leading_dot)dirstamp');
8071 # Directory must be removed by `make distclean'.
8072 $clean_files{$dirstamp} = DIST_CLEAN;
8074 $output_rules .= ("$dirstamp:\n"
8075 . "\t\@\$(MKDIR_P) $directory\n"
8076 . "\t\@: > $dirstamp\n");
8081 # &require_build_directory_maybe ($FILE)
8082 # --------------------------------------
8083 # If $FILE lies in a subdirectory, emit a rule to create this
8084 # directory and return the file that $FILE should be made
8085 # dependent upon. Otherwise, just return the empty string.
8086 sub require_build_directory_maybe ($)
8089 my $directory = dirname ($file);
8091 if ($directory ne '.')
8093 return require_build_directory ($directory);
8101 ################################################################
8103 # Push a list of files onto dist_common.
8104 sub push_dist_common
8106 prog_error "push_dist_common run after handle_dist"
8107 if $handle_dist_run;
8108 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8109 '', INTERNAL, VAR_PRETTY);
8113 ################################################################
8115 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8116 # ----------------------------------------------
8117 # Generate a Makefile.in given the name of the corresponding Makefile and
8118 # the name of the file output by config.status.
8119 sub generate_makefile ($$)
8121 my ($makefile_am, $makefile_in) = @_;
8123 # Reset all the Makefile.am related variables.
8124 initialize_per_input;
8126 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8127 # warnings for this file. So hold any warning issued before
8128 # we have processed AUTOMAKE_OPTIONS.
8129 buffer_messages ('warning');
8131 # Name of input file ("Makefile.am") and output file
8132 # ("Makefile.in"). These have no directory components.
8133 $am_file_name = basename ($makefile_am);
8134 $in_file_name = basename ($makefile_in);
8136 # $OUTPUT is encoded. If it contains a ":" then the first element
8137 # is the real output file, and all remaining elements are input
8138 # files. We don't scan or otherwise deal with these input files,
8139 # other than to mark them as dependencies. See
8140 # &scan_autoconf_files for details.
8141 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8143 $relative_dir = dirname ($makefile);
8144 $am_relative_dir = dirname ($makefile_am);
8145 $topsrcdir = backname ($relative_dir);
8147 read_main_am_file ($makefile_am);
8150 # Process buffered warnings.
8152 # Fatal error. Just return, so we can continue with next file.
8155 # Process buffered warnings.
8158 # There are a few install-related variables that you should not define.
8159 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8164 my $def = $v->def (TRUE);
8165 prog_error "$var not defined in condition TRUE"
8167 reject_var $var, "`$var' should not be defined"
8168 if $def->owner != VAR_AUTOMAKE;
8172 # Catch some obsolete variables.
8173 msg_var ('obsolete', 'INCLUDES',
8174 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8175 if var ('INCLUDES');
8177 # Must do this after reading .am file.
8178 define_variable ('subdir', $relative_dir, INTERNAL);
8180 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8181 # recursive rules are enabled.
8182 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8183 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8185 # Check first, because we might modify some state.
8187 check_gnu_standards;
8188 check_gnits_standards;
8190 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8197 # These must be run after all the sources are scanned. They
8198 # use variables defined by &handle_libraries, &handle_ltlibraries,
8199 # or &handle_programs.
8204 # Variables used by distdir.am and tags.am.
8205 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8206 if (! option 'no-dist')
8208 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8221 handle_minor_options;
8222 # Must come after handle_programs so that %known_programs is up-to-date.
8225 # This must come after most other rules.
8229 do_check_merge_target;
8230 handle_all ($makefile);
8233 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8235 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8237 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8239 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8243 handle_clean ($makefile);
8244 handle_factored_dependencies;
8246 # Comes last, because all the above procedures may have
8247 # defined or overridden variables.
8248 $output_vars .= output_variables;
8252 my ($out_file) = $output_directory . '/' . $makefile_in;
8254 if ($exit_code != 0)
8256 verb "not writing $out_file because of earlier errors";
8260 if (! -d ($output_directory . '/' . $am_relative_dir))
8262 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8265 # We make sure that `all:' is the first target.
8267 "$output_vars$output_all$output_header$output_rules$output_trailer";
8269 # Decide whether we must update the output file or not.
8270 # We have to update in the following situations.
8271 # * $force_generation is set.
8272 # * any of the output dependencies is younger than the output
8273 # * the contents of the output is different (this can happen
8274 # if the project has been populated with a file listed in
8275 # @common_files since the last run).
8276 # Output's dependencies are split in two sets:
8277 # * dependencies which are also configure dependencies
8278 # These do not change between each Makefile.am
8279 # * other dependencies, specific to the Makefile.am being processed
8280 # (such as the Makefile.am itself, or any Makefile fragment
8282 my $timestamp = mtime $out_file;
8283 if (! $force_generation
8284 && $configure_deps_greatest_timestamp < $timestamp
8285 && $output_deps_greatest_timestamp < $timestamp
8286 && $output eq contents ($out_file))
8288 verb "$out_file unchanged";
8289 # No need to update.
8296 or fatal "cannot remove $out_file: $!\n";
8299 my $gm_file = new Automake::XFile "> $out_file";
8300 verb "creating $out_file";
8301 print $gm_file $output;
8304 ################################################################
8309 ################################################################
8311 # Print usage information.
8314 print "Usage: $0 [OPTION] ... [Makefile]...
8316 Generate Makefile.in for configure from Makefile.am.
8319 --help print this help, then exit
8320 --version print version number, then exit
8321 -v, --verbose verbosely list files processed
8322 --no-force only update Makefile.in's that are out of date
8323 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8325 Dependency tracking:
8326 -i, --ignore-deps disable dependency tracking code
8327 --include-deps enable dependency tracking code
8330 --cygnus assume program is part of Cygnus-style tree
8331 --foreign set strictness to foreign
8332 --gnits set strictness to gnits
8333 --gnu set strictness to gnu
8336 -a, --add-missing add missing standard files to package
8337 --libdir=DIR directory storing library files
8338 -c, --copy with -a, copy missing files (default is symlink)
8339 -f, --force-missing force update of standard files
8342 Automake::ChannelDefs::usage;
8346 foreach my $iter (sort ((@common_files, @common_sometimes)))
8348 push (@lcomm, $iter) unless $iter eq $last;
8353 print "\nFiles which are automatically distributed, if found:\n";
8354 format USAGE_FORMAT =
8355 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8356 $four[0], $four[1], $four[2], $four[3]
8358 $~ = "USAGE_FORMAT";
8361 my $rows = int(@lcomm / $cols);
8362 my $rest = @lcomm % $cols;
8373 for (my $y = 0; $y < $rows; $y++)
8375 @four = ("", "", "", "");
8376 for (my $x = 0; $x < $cols; $x++)
8378 last if $y + 1 == $rows && $x == $rest;
8380 my $idx = (($x > $rest)
8381 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8385 $four[$x] = $lcomm[$idx];
8391 Report bugs to <@PACKAGE_BUGREPORT@>.
8392 GNU Automake home page: <@PACKAGE_URL@>.
8393 General help using GNU software: <http://www.gnu.org/gethelp/>.
8396 # --help always returns 0 per GNU standards.
8403 # Print version information
8407 automake (GNU $PACKAGE) $VERSION
8408 Copyright (C) 2011 Free Software Foundation, Inc.
8409 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8410 This is free software: you are free to change and redistribute it.
8411 There is NO WARRANTY, to the extent permitted by law.
8413 Written by Tom Tromey <tromey\@redhat.com>
8414 and Alexandre Duret-Lutz <adl\@gnu.org>.
8416 # --version always returns 0 per GNU standards.
8420 ################################################################
8422 # Parse command line.
8423 sub parse_arguments ()
8426 set_strictness ('gnu');
8428 my $cli_where = new Automake::Location;
8431 'libdir=s' => \$libdir,
8432 'gnu' => sub { set_strictness ('gnu'); },
8433 'gnits' => sub { set_strictness ('gnits'); },
8434 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8435 'foreign' => sub { set_strictness ('foreign'); },
8436 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8437 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8439 'no-force' => sub { $force_generation = 0; },
8440 'f|force-missing' => \$force_missing,
8441 'o|output-dir=s' => \$output_directory,
8442 'a|add-missing' => \$add_missing,
8443 'c|copy' => \$copy_missing,
8444 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8445 'W|warnings=s' => \&parse_warnings,
8446 # These long options (--Werror and --Wno-error) for backward
8447 # compatibility. Use -Werror and -Wno-error today.
8448 'Werror' => sub { parse_warnings 'W', 'error'; },
8449 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8452 Getopt::Long::config ("bundling", "pass_through");
8454 # See if --version or --help is used. We want to process these before
8455 # anything else because the GNU Coding Standards require us to
8456 # `exit 0' after processing these options, and we can't guarantee this
8457 # if we treat other options first. (Handling other options first
8458 # could produce error diagnostics, and in this condition it is
8459 # confusing if Automake does `exit 0'.)
8460 my %cli_options_1st_pass =
8462 'version' => \&version,
8464 # Recognize all other options (and their arguments) but do nothing.
8465 map { $_ => sub {} } (keys %cli_options)
8467 my @ARGV_backup = @ARGV;
8468 Getopt::Long::GetOptions %cli_options_1st_pass
8470 @ARGV = @ARGV_backup;
8472 # Now *really* process the options. This time we know that --help
8473 # and --version are not present, but we specify them nonetheless so
8474 # that ambiguous abbreviation are diagnosed.
8475 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
8478 if (defined $output_directory)
8480 msg 'obsolete', "`--output-dir' is deprecated\n";
8484 # In the next release we'll remove this entirely.
8485 $output_directory = '.';
8488 return unless @ARGV;
8490 if ($ARGV[0] =~ /^-./)
8493 for my $k (keys %cli_options)
8495 if ($k =~ /(.*)=s$/)
8497 map { $argopts{(length ($_) == 1)
8498 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
8501 if ($ARGV[0] eq '--')
8505 elsif (exists $argopts{$ARGV[0]})
8507 fatal ("option `$ARGV[0]' requires an argument\n"
8508 . "Try `$0 --help' for more information.");
8512 fatal ("unrecognized option `$ARGV[0]'.\n"
8513 . "Try `$0 --help' for more information.");
8518 foreach my $arg (@ARGV)
8520 fatal ("empty argument\nTry `$0 --help' for more information.")
8523 # Handle $local:$input syntax.
8524 my ($local, @rest) = split (/:/, $arg);
8525 @rest = ("$local.in",) unless @rest;
8526 my $input = locate_am @rest;
8529 push @input_files, $input;
8530 $output_files{$input} = join (':', ($local, @rest));
8534 error "no Automake input file found for `$arg'";
8538 fatal "no input file found among supplied arguments"
8539 if $errspec && ! @input_files;
8543 # handle_makefile ($MAKEFILE_IN)
8544 # ------------------------------
8545 # Deal with $MAKEFILE_IN.
8546 sub handle_makefile ($)
8549 ($am_file = $file) =~ s/\.in$//;
8550 if (! -f ($am_file . '.am'))
8552 error "`$am_file.am' does not exist";
8556 # Any warning setting now local to this Makefile.am.
8559 generate_makefile ($am_file . '.am', $file);
8561 # Back out any warning setting.
8566 # handle_makefiles_serial ()
8567 # --------------------------
8568 # Deal with all makefiles, without threads.
8569 sub handle_makefiles_serial ()
8571 foreach my $file (@input_files)
8573 handle_makefile ($file);
8577 # get_number_of_threads ()
8578 # ------------------------
8579 # Logic for deciding how many worker threads to use.
8580 sub get_number_of_threads
8582 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8585 unless $nthreads =~ /^[0-9]+$/;
8587 # It doesn't make sense to use more threads than makefiles,
8588 my $max_threads = @input_files;
8590 # but a single worker thread is helpful for exposing bugs.
8591 if ($automake_will_process_aux_dir && $max_threads > 1)
8595 if ($nthreads > $max_threads)
8597 $nthreads = $max_threads;
8602 # handle_makefiles_threaded ($NTHREADS)
8603 # -------------------------------------
8604 # Deal with all makefiles, using threads. The general strategy is to
8605 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8606 # worker threads push back everything that needs serialization:
8607 # * warning and (normal) error messages, for stable stderr output
8608 # order and content (avoiding duplicates, for example),
8609 # * races when installing aux files (and respective messages),
8610 # * races when collecting aux files for distribution.
8612 # The latter requires that the makefile that deals with the aux dir
8613 # files be handled last, done by the master thread.
8614 sub handle_makefiles_threaded ($)
8616 my ($nthreads) = @_;
8618 my @queued_input_files = @input_files;
8619 my $last_input_file = undef;
8620 if ($automake_will_process_aux_dir)
8622 $last_input_file = pop @queued_input_files;
8625 # The file queue distributes all makefiles, the message queues
8626 # collect all serializations needed for respective files.
8627 my $file_queue = Thread::Queue->new;
8629 foreach my $file (@queued_input_files)
8631 $msg_queues{$file} = Thread::Queue->new;
8634 verb "spawning $nthreads worker threads";
8635 my @threads = (1 .. $nthreads);
8636 foreach my $t (@threads)
8638 $t = threads->new (sub
8640 while (my $file = $file_queue->dequeue)
8642 verb "handling $file";
8643 my $queue = $msg_queues{$file};
8644 setup_channel_queue ($queue, QUEUE_MESSAGE);
8645 $required_conf_file_queue = $queue;
8646 handle_makefile ($file);
8647 $queue->enqueue (undef);
8648 setup_channel_queue (undef, undef);
8649 $required_conf_file_queue = undef;
8655 # Queue all normal makefiles.
8656 verb "queuing " . @queued_input_files . " input files";
8657 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8659 # Collect and process serializations.
8660 foreach my $file (@queued_input_files)
8662 verb "dequeuing messages for " . $file;
8663 reset_local_duplicates ();
8664 my $queue = $msg_queues{$file};
8665 while (my $key = $queue->dequeue)
8667 if ($key eq QUEUE_MESSAGE)
8669 pop_channel_queue ($queue);
8671 elsif ($key eq QUEUE_CONF_FILE)
8673 require_queued_conf_file ($queue);
8677 prog_error "unexpected key $key";
8682 foreach my $t (@threads)
8684 my @exit_thread = $t->join;
8685 $exit_code = $exit_thread[0]
8686 if ($exit_thread[0] > $exit_code);
8689 # The master processes the last file.
8690 if ($automake_will_process_aux_dir)
8692 verb "processing last input file";
8693 handle_makefile ($last_input_file);
8697 ################################################################
8699 # Parse the WARNINGS environment variable.
8702 # Parse command line.
8705 $configure_ac = require_configure_ac;
8707 # Do configure.ac scan only once.
8708 scan_autoconf_files;
8713 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8714 if -f 'Makefile.am';
8715 fatal ("no `Makefile.am' found for any configure output$msg");
8718 my $nthreads = get_number_of_threads ();
8720 if ($perl_threads && $nthreads >= 1)
8722 handle_makefiles_threaded ($nthreads);
8726 handle_makefiles_serial ();
8732 ### Setup "GNU" style for perl-mode and cperl-mode.
8734 ## perl-indent-level: 2
8735 ## perl-continued-statement-offset: 2
8736 ## perl-continued-brace-offset: 0
8737 ## perl-brace-offset: 0
8738 ## perl-brace-imaginary-offset: 0
8739 ## perl-label-offset: -2
8740 ## cperl-indent-level: 2
8741 ## cperl-brace-offset: 0
8742 ## cperl-continued-brace-offset: 0
8743 ## cperl-label-offset: -2
8744 ## cperl-extra-newline-before-brace: t
8745 ## cperl-merge-trailing-else: nil
8746 ## cperl-continued-statement-offset: 2