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 Free Software Foundation, Inc.
12 # This program is free software; you can redistribute it and/or modify
13 # it under the terms of the GNU General Public License as published by
14 # the Free Software Foundation; either version 2, or (at your option)
17 # This program is distributed in the hope that it will be useful,
18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 # GNU General Public License for more details.
22 # You should have received a copy of the GNU General Public License
23 # along with this program; if not, write to the Free Software
24 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
27 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
28 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
29 # Alexandre Duret-Lutz <adl@gnu.org>.
35 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
36 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
38 # Override SHELL. This is required on DJGPP so that system() uses
39 # bash, not COMMAND.COM which doesn't quote arguments properly.
40 # Other systems aren't expected to use $SHELL when Automake
41 # runs, but it should be safe to drop the `if DJGPP' guard if
42 # it turns up other systems need the same thing. After all,
43 # if SHELL is used, ./configure's SHELL is always better than
44 # the user's SHELL (which may be something like tcsh).
45 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJGPP'};
49 struct (# Short name of the language (c, f77...).
51 # Nice name of the language (C, Fortran 77...).
54 # List of configure variables which must be defined.
58 # `pure' is `1' or `'. A `pure' language is one where, if
59 # all the files in a directory are of that language, then we
60 # do not require the C compiler or any code to call it.
65 # Name of the compiling variable (COMPILE).
67 # Content of the compiling variable.
69 # Flag to require compilation without linking (-c).
70 'compile_flag' => "\$",
72 # A subroutine to compute a list of possible extensions of
73 # the product given the input extensions.
74 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
75 'output_extensions' => "\$",
76 # A list of flag variables used in 'compile'.
80 # Any tag to pass to libtool while compiling.
81 'libtool_tag' => "\$",
83 # The file to use when generating rules for this language.
84 # The default is 'depend2'.
87 # Name of the linking variable (LINK).
89 # Content of the linking variable.
92 # Name of the linker variable (LD).
94 # Content of the linker variable ($(CC)).
97 # Flag to specify the output file (-o).
98 'output_flag' => "\$",
101 # This is a subroutine which is called whenever we finally
102 # determine the context in which a source file will be
104 '_target_hook' => "\$",
106 # If TRUE, nodist_ sources will be compiled using specific rules
107 # (i.e. not inference rules). The default is FALSE.
108 'nodist_specific' => "\$");
114 if (defined $self->_finish)
116 &{$self->_finish} ();
120 sub target_hook ($$$$%)
123 if (defined $self->_target_hook)
125 &{$self->_target_hook} (@_);
132 use Automake::Config;
133 use Automake::General;
135 use Automake::Channels;
136 use Automake::ChannelDefs;
137 use Automake::Configure_ac;
138 use Automake::FileUtils;
139 use Automake::Location;
140 use Automake::Condition qw/TRUE FALSE/;
141 use Automake::DisjConditions;
142 use Automake::Options;
143 use Automake::Version;
144 use Automake::Variable;
145 use Automake::VarDef;
147 use Automake::RuleDef;
148 use Automake::Wrap 'makefile_wrap';
157 # Some regular expressions. One reason to put them here is that it
158 # makes indentation work better in Emacs.
160 # Writing singled-quoted-$-terminated regexes is a pain because
161 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
162 # by a closing quote. Letting perl-mode think the quote is not closed
163 # leads to all sort of misindentations. On the other hand, defining
164 # regexes as double-quoted strings is far less readable. So usually
167 # $REGEX = '^regex_value' . "\$";
169 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
170 my $WHITE_PATTERN = '^\s*' . "\$";
171 my $COMMENT_PATTERN = '^#';
172 my $TARGET_PATTERN='[$a-zA-Z_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
173 # A rule has three parts: a list of targets, a list of dependencies,
174 # and optionally actions.
176 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
178 # Only recognize leading spaces, not leading tabs. If we recognize
179 # leading tabs here then we need to make the reader smarter, because
180 # otherwise it will think rules like `foo=bar; \' are errors.
181 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
182 # This pattern recognizes a Gnits version id and sets $1 if the
183 # release is an alpha release. We also allow a suffix which can be
184 # used to extend the version number with a "fork" identifier.
185 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
187 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
189 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
191 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
192 my $PATH_PATTERN = '(\w|[+/.-])+';
193 # This will pass through anything not of the prescribed form.
194 my $INCLUDE_PATTERN = ('^include\s+'
195 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
196 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
197 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
199 # Match `-d' as a command-line argument in a string.
200 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
201 # Directories installed during 'install-exec' phase.
202 my $EXEC_DIR_PATTERN =
203 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
205 # Values for AC_CANONICAL_*
206 use constant AC_CANONICAL_BUILD => 1;
207 use constant AC_CANONICAL_HOST => 2;
208 use constant AC_CANONICAL_TARGET => 3;
210 # Values indicating when something should be cleaned.
211 use constant MOSTLY_CLEAN => 0;
212 use constant CLEAN => 1;
213 use constant DIST_CLEAN => 2;
214 use constant MAINTAINER_CLEAN => 3;
217 my @libtool_files = qw(ltmain.sh config.guess config.sub);
218 # ltconfig appears here for compatibility with old versions of libtool.
219 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
221 # Commonly found files we look for and automatically include in
224 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
225 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
226 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
227 depcomp elisp-comp install-sh libversion.in mdate-sh missing
228 mkinstalldirs py-compile texinfo.tex ylwrap),
229 @libtool_files, @libtool_sometimes);
231 # Commonly used files we auto-include, but only sometimes. This list
232 # is used for the --help output only.
233 my @common_sometimes =
234 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
235 configure.ac configure.in stamp-vti);
237 # Standard directories from the GNU Coding Standards, and additional
238 # pkg* directories from Automake. Stored in a hash for fast member check.
239 my %standard_prefix =
240 map { $_ => 1 } (qw(bin data dataroot dvi exec html include info
241 lib libexec lisp localstate man man1 man2 man3
242 man4 man5 man6 man7 man8 man9 oldinclude pdf
243 pkgdatadir pkgincludedir pkglibdir ps sbin
244 sharedstate sysconf));
246 # Copyright on generated Makefile.ins.
247 my $gen_copyright = "\
248 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
249 # 2003, 2004, 2005 Free Software Foundation, Inc.
250 # This Makefile.in is free software; the Free Software Foundation
251 # gives unlimited permission to copy and/or distribute it,
252 # with or without modifications, as long as this notice is preserved.
254 # This program is distributed in the hope that it will be useful,
255 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
256 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
257 # PARTICULAR PURPOSE.
260 # These constants are returned by lang_*_rewrite functions.
261 # LANG_SUBDIR means that the resulting object file should be in a
262 # subdir if the source file is. In this case the file name cannot
263 # have `..' components.
264 use constant LANG_IGNORE => 0;
265 use constant LANG_PROCESS => 1;
266 use constant LANG_SUBDIR => 2;
268 # These are used when keeping track of whether an object can be built
269 # by two different paths.
270 use constant COMPILE_LIBTOOL => 1;
271 use constant COMPILE_ORDINARY => 2;
273 # We can't always associate a location to a variable or a rule,
274 # when its defined by Automake. We use INTERNAL in this case.
275 use constant INTERNAL => new Automake::Location;
278 ## ---------------------------------- ##
279 ## Variables related to the options. ##
280 ## ---------------------------------- ##
282 # TRUE if we should always generate Makefile.in.
283 my $force_generation = 1;
285 # From the Perl manual.
286 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
288 # TRUE if missing standard files should be installed.
291 # TRUE if we should copy missing files; otherwise symlink if possible.
292 my $copy_missing = 0;
294 # TRUE if we should always update files that we know about.
295 my $force_missing = 0;
298 ## ---------------------------------------- ##
299 ## Variables filled during files scanning. ##
300 ## ---------------------------------------- ##
302 # Name of the configure.ac file.
305 # Files found by scanning configure.ac for LIBOBJS.
308 # Names used in AC_CONFIG_HEADER call.
309 my @config_headers = ();
311 # Names used in AC_CONFIG_LINKS call.
312 my @config_links = ();
314 # Directory where output files go. Actually, output files are
315 # relative to this directory.
316 my $output_directory;
318 # List of Makefile.am's to process, and their corresponding outputs.
319 my @input_files = ();
320 my %output_files = ();
322 # Complete list of Makefile.am's that exist.
323 my @configure_input_files = ();
325 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
327 my @other_input_files = ();
328 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
329 # The keys are the files created by these macros.
330 my %ac_config_files_location = ();
332 # Directory to search for configure-required files. This
333 # will be computed by &locate_aux_dir and can be set using
334 # AC_CONFIG_AUX_DIR in configure.ac.
335 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
336 my $config_aux_dir = '';
337 my $config_aux_dir_set_in_configure_ac = 0;
338 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
340 my $am_config_aux_dir = '';
342 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
344 my $config_libobj_dir = '';
346 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
347 my $seen_gettext = 0;
348 # Whether AM_GNU_GETTEXT([external]) is used.
349 my $seen_gettext_external = 0;
350 # Where AM_GNU_GETTEXT appears.
351 my $ac_gettext_location;
353 # Lists of tags supported by Libtool.
354 my %libtool_tags = ();
355 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
356 # use AC_REQUIRE_AUX_FILE.
357 my $libtool_new_api = 0;
359 # Most important AC_CANONICAL_* macro seen so far.
360 my $seen_canonical = 0;
361 # Location of that macro.
362 my $canonical_location;
364 # Where AM_MAINTAINER_MODE appears.
367 # Actual version we've seen.
368 my $package_version = '';
370 # Where version is defined.
371 my $package_version_location;
373 # TRUE if we've seen AC_ENABLE_MULTILIB.
374 my $seen_multilib = 0;
376 # TRUE if we've seen AM_PROG_CC_C_O
379 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
380 my %required_aux_file = ();
382 # Where AM_INIT_AUTOMAKE is called;
383 my $seen_init_automake = 0;
385 # TRUE if we've seen AM_AUTOMAKE_VERSION.
386 my $seen_automake_version = 0;
388 # Hash table of discovered configure substitutions. Keys are names,
389 # values are `FILE:LINE' strings which are used by error message
391 my %configure_vars = ();
393 # Files included by $configure_ac.
394 my @configure_deps = ();
396 # Greatest timestamp of configure's dependencies.
397 my $configure_deps_greatest_timestamp = 0;
399 # Hash table of AM_CONDITIONAL variables seen in configure.
400 my %configure_cond = ();
402 # This maps extensions onto language names.
403 my %extension_map = ();
405 # List of the DIST_COMMON files we discovered while reading
407 my $configure_dist_common = '';
409 # This maps languages names onto objects.
411 # Maps each linker variable onto a language object.
412 my %link_languages = ();
414 # List of targets we must always output.
415 # FIXME: Complete, and remove falsely required targets.
416 my %required_targets =
429 # FIXME: Not required, temporary hacks.
430 # Well, actually they are sort of required: the -recursive
431 # targets will run them anyway...
436 'install-data-am' => 1,
437 'install-exec-am' => 1,
438 'installcheck-am' => 1,
444 # Set to 1 if this run will create the Makefile.in that distribute
445 # the files in config_aux_dir.
446 my $automake_will_process_aux_dir = 0;
448 # The name of the Makefile currently being processed.
452 ################################################################
454 ## ------------------------------------------ ##
455 ## Variables reset by &initialize_per_input. ##
456 ## ------------------------------------------ ##
458 # Basename and relative dir of the input file.
462 # Same but wrt Makefile.in.
466 # Greatest timestamp of the output's dependencies (excluding
467 # configure's dependencies).
468 my $output_deps_greatest_timestamp;
470 # These two variables are used when generating each Makefile.in.
471 # They hold the Makefile.in until it is ready to be printed.
478 # This is the conditional stack, updated on if/else/endif, and
479 # used to build Condition objects.
482 # This holds the set of included files.
485 # This holds a list of directories which we must create at `dist'
486 # time. This is used in some strange scenarios involving weird
487 # AC_OUTPUT commands.
490 # List of dependencies for the obvious targets.
495 # Keys in this hash table are files to delete. The associated
496 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
499 # Keys in this hash table are object files or other files in
500 # subdirectories which need to be removed. This only holds files
501 # which are created by compilations. The value in the hash indicates
502 # when the file should be removed.
503 my %compile_clean_files;
505 # Keys in this hash table are directories where we expect to build a
506 # libtool object. We use this information to decide what directories
508 my %libtool_clean_directories;
510 # Value of `$(SOURCES)', used by tags.am.
512 # Sources which go in the distribution.
515 # This hash maps object file names onto their corresponding source
516 # file names. This is used to ensure that each object is created
517 # by a single source file.
520 # This hash maps object file names onto an integer value representing
521 # whether this object has been built via ordinary compilation or
522 # libtool compilation (the COMPILE_* constants).
523 my %object_compilation_map;
526 # This keeps track of the directories for which we've already
527 # created dirstamp code. Keys are directories, values are stamp files.
528 # Several keys can share the same stamp files if they are equivalent
529 # (as are `.//foo' and `foo').
535 # This is a list of all targets to run during "make dist".
538 # Keys in this hash are the basenames of files which must depend on
539 # ansi2knr. Values are either the empty string, or the directory in
540 # which the ANSI source file appears; the directory must have a
544 # This is the name of the redirect `all' target to use.
547 # This keeps track of which extensions we've seen (that we care
551 # This is random scratch space for the language finish functions.
552 # Don't randomly overwrite it; examine other uses of keys first.
553 my %language_scratch;
555 # We keep track of which objects need special (per-executable)
556 # handling on a per-language basis.
557 my %lang_specific_files;
559 # This is set when `handle_dist' has finished. Once this happens,
560 # we should no longer push on dist_common.
563 # Used to store a set of linkers needed to generate the sources currently
564 # under consideration.
567 # True if we need `LINK' defined. This is a hack.
570 # Was get_object_extension run?
571 # FIXME: This is a hack. a better switch should be found.
572 my $get_object_extension_was_run;
574 # Record each file processed by make_paragraphs.
575 my %transformed_files;
577 # Cache each file processed by make_paragraphs.
578 # (This is different from %transformed_files because
579 # %transformed_files is reset for each file while %am_file_cache
580 # it global to the run.)
583 ################################################################
585 # var_SUFFIXES_trigger ($TYPE, $VALUE)
586 # ------------------------------------
587 # This is called by Automake::Variable::define() when SUFFIXES
588 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
589 # The work here needs to be performed as a side-effect of the
590 # macro_define() call because SUFFIXES definitions impact
591 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
593 sub var_SUFFIXES_trigger ($$)
595 my ($type, $value) = @_;
596 accept_extensions (split (' ', $value));
598 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
600 ################################################################
602 ## --------------------------------- ##
603 ## Forward subroutine declarations. ##
604 ## --------------------------------- ##
605 sub register_language (%);
606 sub file_contents_internal ($$$%);
607 sub define_files_variable ($\@$$);
610 # &initialize_per_input ()
611 # ------------------------
612 # (Re)-Initialize per-Makefile.am variables.
613 sub initialize_per_input ()
615 reset_local_duplicates ();
618 $am_relative_dir = '';
623 $output_deps_greatest_timestamp = 0;
627 $output_trailer = '';
631 Automake::Options::reset;
632 Automake::Variable::reset;
633 Automake::Rule::reset;
651 %object_compilation_map = ();
663 %extension_seen = ();
665 %language_scratch = ();
667 %lang_specific_files = ();
669 $handle_dist_run = 0;
673 $get_object_extension_was_run = 0;
675 %compile_clean_files = ();
677 # We always include `.'. This isn't strictly correct.
678 %libtool_clean_directories = ('.' => 1);
680 %transformed_files = ();
684 ################################################################
686 # Initialize our list of languages that are internally supported.
689 register_language ('name' => 'c',
691 'config_vars' => ['CC'],
694 'flags' => ['CFLAGS', 'CPPFLAGS'],
695 'compiler' => 'COMPILE',
696 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
700 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
701 'compile_flag' => '-c',
702 'libtool_tag' => 'CC',
703 'extensions' => ['.c'],
704 '_finish' => \&lang_c_finish);
707 register_language ('name' => 'cxx',
709 'config_vars' => ['CXX'],
710 'linker' => 'CXXLINK',
711 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
713 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
714 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
715 'compiler' => 'CXXCOMPILE',
716 'compile_flag' => '-c',
717 'output_flag' => '-o',
718 'libtool_tag' => 'CXX',
722 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
725 register_language ('name' => 'objc',
726 'Name' => 'Objective C',
727 'config_vars' => ['OBJC'],
728 'linker' => 'OBJCLINK',,
729 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
731 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
732 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
733 'compiler' => 'OBJCCOMPILE',
734 'compile_flag' => '-c',
735 'output_flag' => '-o',
739 'extensions' => ['.m']);
742 register_language ('name' => 'header',
744 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
747 'output_extensions' => sub { return () },
749 '_finish' => sub { });
752 register_language ('name' => 'yacc',
754 'config_vars' => ['YACC'],
755 'flags' => ['YFLAGS'],
756 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
757 'compiler' => 'YACCCOMPILE',
758 'extensions' => ['.y'],
759 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
761 'rule_file' => 'yacc',
762 '_finish' => \&lang_yacc_finish,
763 '_target_hook' => \&lang_yacc_target_hook,
764 'nodist_specific' => 1);
765 register_language ('name' => 'yaccxx',
766 'Name' => 'Yacc (C++)',
767 'config_vars' => ['YACC'],
768 'rule_file' => 'yacc',
769 'flags' => ['YFLAGS'],
770 'compiler' => 'YACCCOMPILE',
771 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
772 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
773 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
775 '_finish' => \&lang_yacc_finish,
776 '_target_hook' => \&lang_yacc_target_hook,
777 'nodist_specific' => 1);
780 register_language ('name' => 'lex',
782 'config_vars' => ['LEX'],
783 'rule_file' => 'lex',
784 'flags' => ['LFLAGS'],
785 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
786 'compiler' => 'LEXCOMPILE',
787 'extensions' => ['.l'],
788 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
790 '_finish' => \&lang_lex_finish,
791 '_target_hook' => \&lang_lex_target_hook,
792 'nodist_specific' => 1);
793 register_language ('name' => 'lexxx',
794 'Name' => 'Lex (C++)',
795 'config_vars' => ['LEX'],
796 'rule_file' => 'lex',
797 'flags' => ['LFLAGS'],
798 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
799 'compiler' => 'LEXCOMPILE',
800 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
801 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
803 '_finish' => \&lang_lex_finish,
804 '_target_hook' => \&lang_lex_target_hook,
805 'nodist_specific' => 1);
808 register_language ('name' => 'asm',
809 'Name' => 'Assembler',
810 'config_vars' => ['CCAS', 'CCASFLAGS'],
812 'flags' => ['CCASFLAGS'],
813 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
814 # or anything else required. They can also set CCAS.
815 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
816 'compiler' => 'CCASCOMPILE',
817 'compile_flag' => '-c',
818 'extensions' => ['.s'],
820 # With assembly we still use the C linker.
821 '_finish' => \&lang_c_finish);
823 # Preprocessed Assembler.
824 register_language ('name' => 'cppasm',
825 'Name' => 'Preprocessed Assembler',
826 'config_vars' => ['CCAS', 'CCASFLAGS'],
829 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
830 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
831 # or anything else required beyond AM_CPPFLAGS. They
833 'compile' => '$(CCAS) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
834 'compiler' => 'CPPASCOMPILE',
835 'compile_flag' => '-c',
836 'extensions' => ['.S'],
838 # With assembly we still use the C linker.
839 '_finish' => \&lang_c_finish);
842 register_language ('name' => 'f77',
843 'Name' => 'Fortran 77',
844 'linker' => 'F77LINK',
845 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
846 'flags' => ['FFLAGS'],
847 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
848 'compiler' => 'F77COMPILE',
849 'compile_flag' => '-c',
850 'output_flag' => '-o',
851 'libtool_tag' => 'F77',
855 'extensions' => ['.f', '.for']);
858 register_language ('name' => 'fc',
860 'linker' => 'FCLINK',
861 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
862 'flags' => ['FCFLAGS'],
863 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
864 'compiler' => 'FCCOMPILE',
865 'compile_flag' => '-c',
866 'output_flag' => '-o',
870 'extensions' => ['.f90', '.f95']);
872 # Preprocessed Fortran
873 register_language ('name' => 'ppfc',
874 'Name' => 'Preprocessed Fortran',
875 'config_vars' => ['FC'],
876 'linker' => 'FCLINK',
877 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
880 'flags' => ['FCFLAGS', 'CPPFLAGS'],
881 'compiler' => 'PPFCCOMPILE',
882 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
883 'compile_flag' => '-c',
884 'output_flag' => '-o',
885 'libtool_tag' => 'FC',
887 'extensions' => ['.F90','.F95']);
889 # Preprocessed Fortran 77
891 # The current support for preprocessing Fortran 77 just involves
892 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
893 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
894 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
895 # for `make' Version 3.76 Beta' (specifically, from info file
896 # `(make)Catalogue of Rules').
898 # A better approach would be to write an Autoconf test
899 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
900 # Fortran 77 compilers know how to do preprocessing. The Autoconf
901 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
902 # preprocessing capabilities, and then fall back on cpp (if cpp were
904 register_language ('name' => 'ppf77',
905 'Name' => 'Preprocessed Fortran 77',
906 'config_vars' => ['F77'],
907 'linker' => 'F77LINK',
908 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
911 'flags' => ['FFLAGS', 'CPPFLAGS'],
912 'compiler' => 'PPF77COMPILE',
913 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
914 'compile_flag' => '-c',
915 'output_flag' => '-o',
916 'libtool_tag' => 'F77',
918 'extensions' => ['.F']);
921 register_language ('name' => 'ratfor',
923 'config_vars' => ['F77'],
924 'linker' => 'F77LINK',
925 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
928 'flags' => ['RFLAGS', 'FFLAGS'],
930 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
931 'compiler' => 'RCOMPILE',
932 'compile_flag' => '-c',
933 'output_flag' => '-o',
934 'libtool_tag' => 'F77',
936 'extensions' => ['.r']);
939 register_language ('name' => 'java',
941 'config_vars' => ['GCJ'],
942 'linker' => 'GCJLINK',
943 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
945 'flags' => ['GCJFLAGS'],
946 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
947 'compiler' => 'GCJCOMPILE',
948 'compile_flag' => '-c',
949 'output_flag' => '-o',
950 'libtool_tag' => 'GCJ',
954 'extensions' => ['.java', '.class', '.zip', '.jar']);
956 ################################################################
958 # Error reporting functions.
960 # err_am ($MESSAGE, [%OPTIONS])
961 # -----------------------------
962 # Uncategorized errors about the current Makefile.am.
965 msg_am ('error', @_);
968 # err_ac ($MESSAGE, [%OPTIONS])
969 # -----------------------------
970 # Uncategorized errors about configure.ac.
973 msg_ac ('error', @_);
976 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
977 # ---------------------------------------
978 # Messages about about the current Makefile.am.
981 my ($channel, $msg, %opts) = @_;
982 msg $channel, "${am_file}.am", $msg, %opts;
985 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
986 # ---------------------------------------
987 # Messages about about configure.ac.
990 my ($channel, $msg, %opts) = @_;
991 msg $channel, $configure_ac, $msg, %opts;
994 ################################################################
998 # Return a configure-style substitution using the indicated text.
999 # We do this to avoid having the substitutions directly in automake.in;
1000 # when we do that they are sometimes removed and this causes confusion
1005 return '@' . $text . '@';
1008 ################################################################
1012 # &backname ($REL-DIR)
1013 # --------------------
1014 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1015 # For instance `src/foo' => `../..'.
1016 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1021 foreach (split (/\//, $file))
1023 next if $_ eq '.' || $_ eq '';
1033 return join ('/', @res) || '.';
1036 ################################################################
1039 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1042 my $var = var ('AUTOMAKE_OPTIONS');
1045 # FIXME: We should disallow conditional definitions of AUTOMAKE_OPTIONS.
1046 if (process_option_list ($var->rdef (TRUE)->location,
1047 $var->value_as_list_recursive (cond_filter =>
1054 if ($strictness == GNITS)
1056 set_option ('readme-alpha', INTERNAL);
1057 set_option ('std-options', INTERNAL);
1058 set_option ('check-news', INTERNAL);
1064 # shadow_unconditionally ($varname, $where)
1065 # -----------------------------------------
1066 # Return a $(variable) that contains all possible values
1067 # $varname can take.
1068 # If the VAR wasn't defined conditionally, return $(VAR).
1069 # Otherwise we create a am__VAR_DIST variable which contains
1070 # all possible values, and return $(am__VAR_DIST).
1071 sub shadow_unconditionally ($$)
1073 my ($varname, $where) = @_;
1074 my $var = var $varname;
1075 if ($var->has_conditional_contents)
1077 $varname = "am__${varname}_DIST";
1078 my @files = uniq ($var->value_as_list_recursive);
1079 define_pretty_variable ($varname, TRUE, $where, @files);
1081 return "\$($varname)"
1084 # get_object_extension ($EXTENSION)
1085 # ---------------------------------
1086 # Prefix $EXTENSION with $U if ansi2knr is in use.
1087 sub get_object_extension ($)
1089 my ($extension) = @_;
1091 # Check for automatic de-ANSI-fication.
1092 $extension = '$U' . $extension
1093 if option 'ansi2knr';
1095 $get_object_extension_was_run = 1;
1100 # check_user_variables (@LIST)
1101 # ----------------------------
1102 # Make sure each variable VAR in @LIST do not exist, suggest using AM_VAR
1104 sub check_user_variables (@)
1106 my @dont_override = @_;
1107 foreach my $flag (@dont_override)
1109 my $var = var $flag;
1112 for my $cond ($var->conditions->conds)
1114 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1116 msg_cond_var ('gnu', $cond, $flag,
1117 "`$flag' is a user variable, "
1118 . "you should not override it;\n"
1119 . "use `AM_$flag' instead.");
1126 # Call finish function for each language that was used.
1127 sub handle_languages
1129 if (! option 'no-dependencies')
1131 # Include auto-dep code. Don't include it if DEP_FILES would
1133 if (&saw_sources_p (0) && keys %dep_files)
1135 # Set location of depcomp.
1136 &define_variable ('depcomp',
1137 "\$(SHELL) $am_config_aux_dir/depcomp",
1139 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1141 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1143 my @deplist = sort keys %dep_files;
1144 # Generate each `include' individually. Irix 6 make will
1145 # not properly include several files resulting from a
1146 # variable expansion; generating many separate includes
1148 $output_rules .= "\n";
1149 foreach my $iter (@deplist)
1151 $output_rules .= (subst ('AMDEP_TRUE')
1152 . subst ('am__include')
1154 . subst ('am__quote')
1156 . subst ('am__quote')
1160 # Compute the set of directories to remove in distclean-depend.
1161 my @depdirs = uniq (map { dirname ($_) } @deplist);
1162 $output_rules .= &file_contents ('depend',
1163 new Automake::Location,
1164 DEPDIRS => "@depdirs");
1169 &define_variable ('depcomp', '', INTERNAL);
1170 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1175 # Is the c linker needed?
1177 foreach my $ext (sort keys %extension_seen)
1179 next unless $extension_map{$ext};
1181 my $lang = $languages{$extension_map{$ext}};
1183 my $rule_file = $lang->rule_file || 'depend2';
1185 # Get information on $LANG.
1186 my $pfx = $lang->autodep;
1187 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1189 my ($AMDEP, $FASTDEP) =
1190 (option 'no-dependencies' || $lang->autodep eq 'no')
1191 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1193 my %transform = ('EXT' => $ext,
1197 'FASTDEP' => $FASTDEP,
1198 '-c' => $lang->compile_flag || '',
1200 => (count_files_for_language ($lang->name) > 1),
1201 # These are not used, but they need to be defined
1202 # so &transform do not complain.
1204 'DERIVED-EXT' => 'BUG',
1208 # Generate the appropriate rules for this extension.
1209 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1210 || defined $lang->compile)
1212 # Some C compilers don't support -c -o. Use it only if really
1214 my $output_flag = $lang->output_flag || '';
1217 && $lang->name eq 'c'
1218 && option 'subdir-objects');
1220 # Compute a possible derived extension.
1221 # This is not used by depend2.am.
1222 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1224 # When we output an inference rule like `.c.o:' we
1225 # have two cases to consider: either subdir-objects
1226 # is used, or it is not.
1228 # In the latter case the rule is used to build objects
1229 # in the current directory, and dependencies always
1230 # go into `./$(DEPDIR)/'. We can hard-code this value.
1232 # In the former case the rule can be used to build
1233 # objects in sub-directories too. Dependencies should
1234 # go into the appropriate sub-directories, e.g.,
1235 # `sub/$(DEPDIR)/'. The value of this directory
1236 # need the be computed on-the-fly.
1238 # DEPBASE holds the name of this directory, plus the
1239 # basename part of the object file (extensions Po, TPo,
1240 # Plo, TPlo will be added later as appropriate). It is
1241 # either hardcoded, or a shell variable (`$depbase') that
1242 # will be computed by the rule.
1244 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1246 file_contents ($rule_file,
1247 new Automake::Location,
1251 'DERIVED-EXT' => $der_ext,
1253 DEPBASE => $depbase,
1260 COMPILE => '$(' . $lang->compiler . ')',
1261 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1263 SUBDIROBJ => !! option 'subdir-objects');
1266 # Now include code for each specially handled object with this
1268 my %seen_files = ();
1269 foreach my $file (@{$lang_specific_files{$lang->name}})
1271 my ($derived, $source, $obj, $myext, %file_transform) = @$file;
1273 # We might see a given object twice, for instance if it is
1274 # used under different conditions.
1275 next if defined $seen_files{$obj};
1276 $seen_files{$obj} = 1;
1278 prog_error ("found " . $lang->name .
1279 " in handle_languages, but compiler not defined")
1280 unless defined $lang->compile;
1282 my $obj_compile = $lang->compile;
1284 # Rewrite each occurrence of `AM_$flag' in the compile
1285 # rule into `${derived}_$flag' if it exists.
1286 for my $flag (@{$lang->flags})
1288 my $val = "${derived}_$flag";
1289 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1293 my $libtool_tag = '';
1294 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1296 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1299 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1300 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1303 "\$(LIBTOOL) $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1304 . "--mode=compile $obj_compile";
1306 # We _need_ `-o' for per object rules.
1307 my $output_flag = $lang->output_flag || '-o';
1309 my $depbase = dirname ($obj);
1313 unless $depbase eq '';
1314 $depbase .= '$(DEPDIR)/' . basename ($obj);
1316 # Support for deansified files in subdirectories is ugly
1317 # enough to deserve an explanation.
1319 # A Note about normal ansi2knr processing first. On
1321 # AUTOMAKE_OPTIONS = ansi2knr
1322 # bin_PROGRAMS = foo
1323 # foo_SOURCES = foo.c
1325 # we generate rules similar to:
1327 # foo: foo$U.o; link ...
1328 # foo$U.o: foo$U.c; compile ...
1329 # foo_.c: foo.c; ansi2knr ...
1331 # this is fairly compact, and will call ansi2knr depending
1332 # on the value of $U (`' or `_').
1334 # It's harder with subdir sources. On
1336 # AUTOMAKE_OPTIONS = ansi2knr
1337 # bin_PROGRAMS = foo
1338 # foo_SOURCES = sub/foo.c
1340 # we have to create foo_.c in the current directory.
1341 # (Unless the user asks 'subdir-objects'.) This is important
1342 # in case the same file (`foo.c') is compiled from other
1343 # directories with different cpp options: foo_.c would
1344 # be preprocessed for only one set of options if it were
1345 # put in the subdirectory.
1347 # Because foo$U.o must be built from either foo_.c or
1348 # sub/foo.c we can't be as concise as in the first example.
1351 # foo: foo$U.o; link ...
1352 # foo_.o: foo_.c; compile ...
1353 # foo.o: sub/foo.c; compile ...
1354 # foo_.c: foo.c; ansi2knr ...
1356 # This is why we'll now transform $rule_file twice
1357 # if we detect this case.
1358 # A first time we output the compile rule with `$U'
1359 # replaced by `_' and the source directory removed,
1360 # and another time we simply remove `$U'.
1362 # Note that at this point $source (as computed by
1363 # &handle_single_transform) is `sub/foo$U.c'.
1364 # This can be confusing: it can be used as-is when
1365 # subdir-objects is set, otherwise you have to know
1366 # it really means `foo_.c' or `sub/foo.c'.
1367 my $objdir = dirname ($obj);
1368 my $srcdir = dirname ($source);
1369 if ($lang->ansi && $obj =~ /\$U/)
1371 prog_error "`$obj' contains \$U, but `$source' doesn't."
1372 if $source !~ /\$U/;
1374 (my $source_ = $source) =~ s/\$U/_/g;
1375 # Output an additional rule if _.c and .c are not in
1376 # the same directory. (_.c is always in $objdir.)
1377 if ($objdir ne $srcdir)
1379 (my $obj_ = $obj) =~ s/\$U/_/g;
1380 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1381 $source_ = basename ($source_);
1384 file_contents ($rule_file,
1385 new Automake::Location,
1389 DEPBASE => $depbase_,
1392 OBJ => "$obj_$myext",
1393 OBJOBJ => "$obj_.obj",
1394 LTOBJ => "$obj_.lo",
1396 COMPILE => $obj_compile,
1397 LTCOMPILE => $obj_ltcompile,
1401 $depbase =~ s/\$U//g;
1402 $source =~ s/\$U//g;
1407 file_contents ($rule_file,
1408 new Automake::Location,
1412 DEPBASE => $depbase,
1415 # Use $myext and not `.o' here, in case
1416 # we are actually building a new source
1417 # file -- e.g. via yacc.
1418 OBJ => "$obj$myext",
1419 OBJOBJ => "$obj.obj",
1422 COMPILE => $obj_compile,
1423 LTCOMPILE => $obj_ltcompile,
1428 # The rest of the loop is done once per language.
1429 next if defined $done{$lang};
1432 # Load the language dependent Makefile chunks.
1433 my %lang = map { uc ($_) => 0 } keys %languages;
1434 $lang{uc ($lang->name)} = 1;
1435 $output_rules .= file_contents ('lang-compile',
1436 new Automake::Location,
1439 # If the source to a program consists entirely of code from a
1440 # `pure' language, for instance C++ or Fortran 77, then we
1441 # don't need the C compiler code. However if we run into
1442 # something unusual then we do generate the C code. There are
1443 # probably corner cases here that do not work properly.
1444 # People linking Java code to Fortran code deserve pain.
1445 $needs_c ||= ! $lang->pure;
1447 define_compiler_variable ($lang)
1448 if ($lang->compile);
1450 define_linker_variable ($lang)
1453 require_variables ("$am_file.am", $lang->Name . " source seen",
1454 TRUE, @{$lang->config_vars});
1456 # Call the finisher.
1459 # Flags listed in `->flags' are user variables (per GNU Standards),
1460 # they should not be overridden in the Makefile...
1461 my @dont_override = @{$lang->flags};
1462 # ... and so is LDFLAGS.
1463 push @dont_override, 'LDFLAGS' if $lang->link;
1465 check_user_variables @dont_override;
1468 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1469 # suffix rule was learned), don't bother with the C stuff. But if
1470 # anything else creeps in, then use it.
1472 if $need_link || suffix_rules_count > 1;
1476 &define_compiler_variable ($languages{'c'})
1477 unless defined $done{$languages{'c'}};
1478 define_linker_variable ($languages{'c'});
1482 # Check to make sure a source defined in LIBOBJS is not explicitly
1483 # mentioned. This is a separate function (as opposed to being inlined
1484 # in handle_source_transform) because it isn't always appropriate to
1486 sub check_libobjs_sources
1488 my ($one_file, $unxformed) = @_;
1490 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1491 'dist_EXTRA_', 'nodist_EXTRA_')
1494 my $varname = $prefix . $one_file . '_SOURCES';
1495 my $var = var ($varname);
1498 @files = $var->value_as_list_recursive;
1500 elsif ($prefix eq '')
1502 @files = ($unxformed . '.c');
1509 foreach my $file (@files)
1511 err_var ($prefix . $one_file . '_SOURCES',
1512 "automatically discovered file `$file' should not" .
1513 " be explicitly mentioned")
1514 if defined $libsources{$file};
1521 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1522 # -----------------------------------------------------------------------------
1523 # Does much of the actual work for handle_source_transform.
1525 # $VAR is the name of the variable that the source filenames come from
1526 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1527 # $DERIVED is the name of resulting executable or library
1528 # $OBJ is the object extension (e.g., `$U.lo')
1529 # $FILE the source file to transform
1530 # %TRANSFORM contains extras arguments to pass to file_contents
1531 # when producing explicit rules
1532 # Result is a list of the names of objects
1533 # %linkers_used will be updated with any linkers needed
1534 sub handle_single_transform ($$$$$%)
1536 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1537 my @files = ($_file);
1539 my $nonansi_obj = $obj;
1540 $nonansi_obj =~ s/\$U//g;
1542 # Turn sources into objects. We use a while loop like this
1543 # because we might add to @files in the loop.
1544 while (scalar @files > 0)
1548 # Configure substitutions in _SOURCES variables are errors.
1551 my $parent_msg = '';
1552 $parent_msg = "\nand is referred to from `$topparent'"
1553 if $topparent ne $var->name;
1555 "`" . $var->name . "' includes configure substitution `$_'"
1556 . $parent_msg . ";\nconfigure " .
1557 "substitutions are not allowed in _SOURCES variables");
1561 # If the source file is in a subdirectory then the `.o' is put
1562 # into the current directory, unless the subdir-objects option
1565 # Split file name into base and extension.
1566 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1568 my $directory = $1 || '';
1572 # We must generate a rule for the object if it requires its own flags.
1574 my ($linker, $object);
1576 # This records whether we've seen a derived source file (e.g.
1578 my $derived_source = 0;
1580 # This holds the `aggregate context' of the file we are
1581 # currently examining. If the file is compiled with
1582 # per-object flags, then it will be the name of the object.
1583 # Otherwise it will be `AM'. This is used by the target hook
1584 # language function.
1585 my $aggregate = 'AM';
1587 $extension = &derive_suffix ($extension, $nonansi_obj);
1589 if ($extension_map{$extension} &&
1590 ($lang = $languages{$extension_map{$extension}}))
1592 # Found the language, so see what it says.
1593 &saw_extension ($extension);
1595 # Do we have per-executable flags for this executable?
1596 my $have_per_exec_flags = 0;
1597 my @peflags = @{$lang->flags};
1598 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1599 foreach my $flag (@peflags)
1601 if (set_seen ("${derived}_$flag"))
1603 $have_per_exec_flags = 1;
1608 # Note: computed subr call. The language rewrite function
1609 # should return one of the LANG_* constants. It could
1610 # also return a list whose first value is such a constant
1611 # and whose second value is a new source extension which
1612 # should be applied. This means this particular language
1613 # generates another source file which we must then process
1615 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1616 my ($r, $source_extension)
1617 = &$subr ($directory, $base, $extension,
1618 $nonansi_obj, $have_per_exec_flags, $var);
1619 # Skip this entry if we were asked not to process it.
1620 next if $r == LANG_IGNORE;
1622 # Now extract linker and other info.
1623 $linker = $lang->linker;
1626 if (defined $source_extension)
1628 $this_obj_ext = $source_extension;
1629 $derived_source = 1;
1633 $this_obj_ext = $obj;
1637 $this_obj_ext = $nonansi_obj;
1639 $object = $base . $this_obj_ext;
1641 if ($have_per_exec_flags)
1643 # We have a per-executable flag in effect for this
1644 # object. In this case we rewrite the object's
1645 # name to ensure it is unique.
1647 # We choose the name `DERIVED_OBJECT' to ensure
1648 # (1) uniqueness, and (2) continuity between
1649 # invocations. However, this will result in a
1650 # name that is too long for losing systems, in
1651 # some situations. So we provide _SHORTNAME to
1654 my $dname = $derived;
1655 my $var = var ($derived . '_SHORTNAME');
1658 # FIXME: should use the same Condition as
1659 # the _SOURCES variable. But this is really
1660 # silly overkill -- nobody should have
1661 # conditional shortnames.
1662 $dname = $var->variable_value;
1664 $object = $dname . '-' . $object;
1666 prog_error ($lang->name . " flags defined without compiler")
1667 if ! defined $lang->compile;
1672 # If rewrite said it was ok, put the object into a
1674 if ($r == LANG_SUBDIR && $directory ne '')
1676 $object = $directory . '/' . $object;
1679 # If the object file has been renamed (because per-target
1680 # flags are used) we cannot compile the file with an
1681 # inference rule: we need an explicit rule.
1683 # If the source is in a subdirectory and the object is in
1684 # the current directory, we also need an explicit rule.
1686 # If both source and object files are in a subdirectory
1687 # (this happens when the subdir-objects option is used),
1688 # then the inference will work.
1690 # The latter case deserves a historical note. When the
1691 # subdir-objects option was added on 1999-04-11 it was
1692 # thought that inferences rules would work for
1693 # subdirectory objects too. Later, on 1999-11-22,
1694 # automake was changed to output explicit rules even for
1695 # subdir-objects. Nobody remembers why, but this occured
1696 # soon after the merge of the user-dep-gen-branch so it
1697 # might be related. In late 2003 people complained about
1698 # the size of the generated Makefile.ins (libgcj, with
1699 # 2200+ subdir objects was reported to have a 9MB
1700 # Makefile), so we now rely on inference rules again.
1701 # Maybe we'll run across the same issue as in the past,
1702 # but at least this time we can document it. However since
1703 # dependency tracking has evolved it is possible that
1704 # our old problem no longer exists.
1705 # Using inference rules for subdir-objects has been tested
1706 # with GNU make, Solaris make, Ultrix make, BSD make,
1707 # HP-UX make, and OSF1 make successfully.
1709 || ($directory ne '' && ! option 'subdir-objects')
1710 # We must also use specific rules for a nodist_ source
1711 # if its language requests it.
1712 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1714 my $obj_sans_ext = substr ($object, 0,
1715 - length ($this_obj_ext));
1716 my $full_ansi = $full;
1717 if ($lang->ansi && option 'ansi2knr')
1719 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1720 $obj_sans_ext .= '$U';
1723 my @specifics = ($full_ansi, $obj_sans_ext,
1724 # Only use $this_obj_ext in the derived
1725 # source case because in the other case we
1726 # *don't* want $(OBJEXT) to appear here.
1727 ($derived_source ? $this_obj_ext : '.o'));
1729 # If we renamed the object then we want to use the
1730 # per-executable flag name. But if this is simply a
1731 # subdir build then we still want to use the AM_ flag
1735 unshift @specifics, $derived;
1736 $aggregate = $derived;
1740 unshift @specifics, 'AM';
1743 # Each item on this list is a reference to a list consisting
1744 # of four values followed by additional transform flags for
1745 # file_contents. The four values are the derived flag prefix
1746 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1747 # source file, the base name of the output file, and
1748 # the extension for the object file.
1749 push (@{$lang_specific_files{$lang->name}},
1750 [@specifics, %transform]);
1753 elsif ($extension eq $nonansi_obj)
1755 # This is probably the result of a direct suffix rule.
1756 # In this case we just accept the rewrite.
1757 $object = "$base$extension";
1762 # No error message here. Used to have one, but it was
1764 # FIXME: we could potentially do more processing here,
1765 # perhaps treating the new extension as though it were a
1766 # new source extension (as above). This would require
1767 # more restructuring than is appropriate right now.
1771 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1772 if (defined $object_map{$object}
1773 && $object_map{$object} ne $full);
1775 my $comp_val = (($object =~ /\.lo$/)
1776 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1777 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1778 if (defined $object_compilation_map{$comp_obj}
1779 && $object_compilation_map{$comp_obj} != 0
1780 # Only see the error once.
1781 && ($object_compilation_map{$comp_obj}
1782 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1783 && $object_compilation_map{$comp_obj} != $comp_val)
1785 err_am "object `$comp_obj' created both with libtool and without";
1787 $object_compilation_map{$comp_obj} |= $comp_val;
1791 # Let the language do some special magic if required.
1792 $lang->target_hook ($aggregate, $object, $full, %transform);
1795 if ($derived_source)
1797 prog_error ($lang->name . " has automatic dependency tracking")
1798 if $lang->autodep ne 'no';
1799 # Make sure this new source file is handled next. That will
1800 # make it appear to be at the right place in the list.
1801 unshift (@files, $object);
1802 # Distribute derived sources unless the source they are
1803 # derived from is not.
1804 &push_dist_common ($object)
1805 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1809 $linkers_used{$linker} = 1;
1811 push (@result, $object);
1813 if (! defined $object_map{$object})
1816 $object_map{$object} = $full;
1818 # If resulting object is in subdir, we need to make
1819 # sure the subdir exists at build time.
1820 if ($object =~ /\//)
1822 # FIXME: check that $DIRECTORY is somewhere in the
1825 # For Java, the way we're handling it right now, a
1826 # `..' component doesn't make sense.
1827 if ($lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1829 err_am "`$full' should not contain a `..' component";
1832 # Make sure object is removed by `make mostlyclean'.
1833 $compile_clean_files{$object} = MOSTLY_CLEAN;
1834 # If we have a libtool object then we also must remove
1836 if ($object =~ /\.lo$/)
1838 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1839 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1841 # Remove any libtool object in this directory.
1842 $libtool_clean_directories{$directory} = 1;
1845 push (@dep_list, require_build_directory ($directory));
1847 # If we're generating dependencies, we also want
1848 # to make sure that the appropriate subdir of the
1849 # .deps directory is created.
1851 require_build_directory ($directory . '/$(DEPDIR)'))
1852 unless option 'no-dependencies';
1855 &pretty_print_rule ($object . ':', "\t", @dep_list)
1856 if scalar @dep_list > 0;
1859 # Transform .o or $o file into .P file (for automatic
1861 if ($lang && $lang->autodep ne 'no')
1863 my $depfile = $object;
1864 $depfile =~ s/\.([^.]*)$/.P$1/;
1865 $depfile =~ s/\$\(OBJEXT\)$/o/;
1866 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1867 . basename ($depfile)} = 1;
1876 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1877 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1878 # ---------------------------------------------------------------------------
1879 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1882 # $VAR is the name of the _SOURCES variable
1883 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1884 # it will be generated and returned).
1885 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1886 # work done to determine the linker will be).
1887 # $ONE_FILE is the canonical (transformed) name of object to build
1888 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1889 # $TOPPARENT is the _SOURCES variable being processed.
1890 # $WHERE context into which this definition is done
1891 # %TRANSFORM extra arguments to pass to file_contents when producing
1894 # Result is a pair ($LINKER, $OBJVAR):
1895 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1896 sub define_objects_from_sources ($$$$$$$%)
1898 my ($var, $objvar, $nodefine, $one_file,
1899 $obj, $topparent, $where, %transform) = @_;
1901 my $needlinker = "";
1903 transform_variable_recursively
1904 ($var, $objvar, 'am__objects', $nodefine, $where,
1905 # The transform code to run on each filename.
1907 my ($subvar, $val, $cond, $full_cond) = @_;
1908 my @trans = handle_single_transform ($subvar, $topparent,
1909 $one_file, $obj, $val,
1911 $needlinker = "true" if @trans;
1919 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
1920 # -----------------------------------------------------------------------------
1921 # Handle SOURCE->OBJECT transform for one program or library.
1923 # canonical (transformed) name of target to build
1924 # actual target of object to build
1925 # object extension (i.e., either `.o' or `$o')
1926 # location of the source variable
1927 # extra arguments to pass to file_contents when producing rules
1928 # Return the name of the linker variable that must be used.
1929 # Empty return means just use `LINK'.
1930 sub handle_source_transform ($$$$%)
1932 # one_file is canonical name. unxformed is given name. obj is
1934 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
1938 # No point in continuing if _OBJECTS is defined.
1939 return if reject_var ($one_file . '_OBJECTS',
1940 $one_file . '_OBJECTS should not be defined');
1945 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1946 'dist_EXTRA_', 'nodist_EXTRA_')
1948 my $varname = $prefix . $one_file . "_SOURCES";
1949 my $var = var $varname;
1952 # We are going to define _OBJECTS variables using the prefix.
1953 # Then we glom them all together. So we can't use the null
1954 # prefix here as we need it later.
1955 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
1957 # Keep track of which prefixes we saw.
1958 $used_pfx{$xpfx} = 1
1959 unless $prefix =~ /EXTRA_/;
1961 push @sources, "\$($varname)";
1962 push @dist_sources, shadow_unconditionally ($varname, $where)
1963 unless (option ('no-dist') || $prefix =~ /^nodist_/);
1966 define_objects_from_sources ($varname,
1967 $xpfx . $one_file . '_OBJECTS',
1968 $prefix =~ /EXTRA_/,
1969 $one_file, $obj, $varname, $where,
1970 DIST_SOURCE => ($prefix !~ /^nodist_/),
1975 $linker ||= &resolve_linker (%linkers_used);
1978 my @keys = sort keys %used_pfx;
1979 if (scalar @keys == 0)
1981 # The default source for libfoo.la is libfoo.c, but for
1982 # backward compatibility we first look at libfoo_la.c
1983 my $old_default_source = "$one_file.c";
1984 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
1985 if ($old_default_source ne $default_source
1986 && (rule $old_default_source
1987 || rule '$(srcdir)/' . $old_default_source
1988 || rule '${srcdir}/' . $old_default_source
1989 || -f $old_default_source))
1991 my $loc = $where->clone;
1993 msg ('obsolete', $loc,
1994 "the default source for `$unxformed' has been changed "
1995 . "to `$default_source'.\n(Using `$old_default_source' for "
1996 . "backward compatibility.)");
1997 $default_source = $old_default_source;
1999 # If a rule exists to build this source with a $(srcdir)
2000 # prefix, use that prefix in our variables too. This is for
2001 # the sake of BSD Make.
2002 if (rule '$(srcdir)/' . $default_source
2003 || rule '${srcdir}/' . $default_source)
2005 $default_source = '$(srcdir)/' . $default_source;
2008 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2009 push (@sources, $default_source);
2010 push (@dist_sources, $default_source);
2014 handle_single_transform ($one_file . '_SOURCES',
2015 $one_file . '_SOURCES',
2017 $default_source, %transform);
2018 $linker ||= &resolve_linker (%linkers_used);
2019 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2023 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2024 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2027 # If we want to use `LINK' we must make sure it is defined.
2037 # handle_lib_objects ($XNAME, $VAR)
2038 # ---------------------------------
2039 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2040 # Also, generate _DEPENDENCIES variable if appropriate.
2042 # transformed name of object being built, or empty string if no object
2043 # name of _LDADD/_LIBADD-type variable to examine
2044 # Returns 1 if LIBOBJS seen, 0 otherwise.
2045 sub handle_lib_objects
2047 my ($xname, $varname) = @_;
2049 my $var = var ($varname);
2050 prog_error "handle_lib_objects: `$varname' undefined"
2052 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2053 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2054 my $prefix = $1 || 'AM_';
2056 my $seen_libobjs = 0;
2059 transform_variable_recursively
2060 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2062 # Transformation function, run on each filename.
2064 my ($subvar, $val, $cond, $full_cond) = @_;
2068 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2069 if ($val !~ /^-[lL]/ &&
2070 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2071 # for Libtool libraries or programs. (Actually we are a bit
2072 # laxest here since this code also applies to non-libtool
2073 # libraries or programs, for which -dlopen and -dlopreopen
2074 # are pure non-sence. Diagnosting this doesn't seems very
2075 # important: the developer will quickly get complaints from
2077 $val !~ /^-dl(?:pre)?open$/ &&
2078 # Only get this error once.
2082 # FIXME: should display a stack of nested variables
2083 # as context when $var != $subvar.
2084 err_var ($var, "linker flags such as `$val' belong in "
2085 . "`${prefix}LDFLAGS");
2089 elsif ($val !~ /^\@.*\@$/)
2091 # Assume we have a file of some sort, and output it into the
2092 # dependency variable. Autoconf substitutions are not output;
2093 # rarely is a new dependency substituted into e.g. foo_LDADD
2094 # -- but bad things (e.g. -lX11) are routinely substituted.
2095 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2096 # and handled specially below.
2099 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2101 handle_LIBOBJS ($subvar, $cond, $1);
2105 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2107 handle_ALLOCA ($subvar, $cond, $1);
2116 return $seen_libobjs;
2119 # handle_LIBOBJS_or_ALLOCA ($VAR)
2120 # -------------------------------
2121 # Definitions common to LIBOBJS and ALLOCA.
2122 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2123 sub handle_LIBOBJS_or_ALLOCA ($)
2127 my $dir = $config_libobj_dir ? "$config_libobj_dir/" : '';
2129 # If LIBOBJS files must be built in another directory we have
2130 # to define LIBOBJDIR and ensure the files get cleaned.
2131 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2132 # is achieved by `rm -f *.($OBJEXT)' in compile.am.
2133 if ($config_libobj_dir
2134 && $relative_dir ne $config_libobj_dir)
2136 if (option 'subdir-objects')
2138 define_variable ('LIBOBJDIR', "\$(top_builddir)/$dir", INTERNAL);
2139 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2140 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2141 # be created by libtool as a side-effect of creating LTLIBOBJS).
2142 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2147 error ("`\$($var)' cannot be used outside `$dir' if"
2148 . " `subdir-objects' is not set");
2155 sub handle_LIBOBJS ($$$)
2157 my ($var, $cond, $lt) = @_;
2159 my $myobjext = ($1 ? 'l' : '') . 'o';
2161 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2162 if ! keys %libsources;
2164 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2166 foreach my $iter (keys %libsources)
2168 if ($iter =~ /\.[cly]$/)
2170 &saw_extension ($&);
2171 &saw_extension ('.c');
2174 if ($iter =~ /\.h$/)
2176 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2178 elsif ($iter ne 'alloca.c')
2180 my $rewrite = $iter;
2181 $rewrite =~ s/\.c$/.P$myobjext/;
2182 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2183 $rewrite = "^" . quotemeta ($iter) . "\$";
2184 # Only require the file if it is not a built source.
2185 my $bs = var ('BUILT_SOURCES');
2186 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2188 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2194 sub handle_ALLOCA ($$$)
2196 my ($var, $cond, $lt) = @_;
2197 my $myobjext = ($lt ? 'l' : '') . 'o';
2199 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2201 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2202 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2203 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2204 &saw_extension ('.c');
2207 # Canonicalize the input parameter
2211 $string =~ tr/A-Za-z0-9_\@/_/c;
2215 # Canonicalize a name, and check to make sure the non-canonical name
2216 # is never used. Returns canonical name. Arguments are name and a
2217 # list of suffixes to check for.
2218 sub check_canonical_spelling
2220 my ($name, @suffixes) = @_;
2222 my $xname = &canonicalize ($name);
2223 if ($xname ne $name)
2225 foreach my $xt (@suffixes)
2227 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2237 # Set up the compile suite.
2238 sub handle_compile ()
2241 unless $get_object_extension_was_run;
2244 my $default_includes = '';
2245 if (! option 'nostdinc')
2247 $default_includes = ' -I. -I$(srcdir)';
2249 my $var = var 'CONFIG_HEADER';
2252 foreach my $hdr (split (' ', $var->variable_value))
2254 $default_includes .= ' -I' . dirname ($hdr);
2259 my (@mostly_rms, @dist_rms);
2260 foreach my $item (sort keys %compile_clean_files)
2262 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2264 push (@mostly_rms, "\t-rm -f $item");
2266 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2268 push (@dist_rms, "\t-rm -f $item");
2272 prog_error 'invalid entry in %compile_clean_files';
2276 my ($coms, $vars, $rules) =
2277 &file_contents_internal (1, "$libdir/am/compile.am",
2278 new Automake::Location,
2279 ('DEFAULT_INCLUDES' => $default_includes,
2280 'MOSTLYRMS' => join ("\n", @mostly_rms),
2281 'DISTRMS' => join ("\n", @dist_rms)));
2282 $output_vars .= $vars;
2283 $output_rules .= "$coms$rules";
2285 # Check for automatic de-ANSI-fication.
2286 if (option 'ansi2knr')
2288 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2289 my $ansi2knr_dir = '';
2291 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2292 TRUE, "ANSI2KNR", "U");
2294 # topdir is where ansi2knr should be.
2295 if ($ansi2knr_filename eq 'ansi2knr')
2297 # Only require ansi2knr files if they should appear in
2299 require_file ($ansi2knr_where, FOREIGN,
2300 'ansi2knr.c', 'ansi2knr.1');
2302 # ansi2knr needs to be built before subdirs, so unshift it.
2303 unshift (@all, '$(ANSI2KNR)');
2307 $ansi2knr_dir = dirname ($ansi2knr_filename);
2310 $output_rules .= &file_contents ('ansi2knr',
2311 new Automake::Location,
2312 'ANSI2KNR-DIR' => $ansi2knr_dir);
2319 # Handle libtool rules.
2322 return unless var ('LIBTOOL');
2324 # Libtool requires some files, but only at top level.
2325 # (Starting with Libtool 2.0 we do not have to bother. These
2326 # requirements are done with AC_REQUIRE_AUX_FILE.)
2327 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2328 if $relative_dir eq '.' && ! $libtool_new_api;
2331 foreach my $item (sort keys %libtool_clean_directories)
2333 my $dir = ($item eq '.') ? '' : "$item/";
2334 # .libs is for Unix, _libs for DOS.
2335 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2338 check_user_variables 'LIBTOOLFLAGS';
2340 # Output the libtool compilation rules.
2341 $output_rules .= &file_contents ('libtool',
2342 new Automake::Location,
2343 LTRMS => join ("\n", @libtool_rms));
2346 # handle_programs ()
2347 # ------------------
2348 # Handle C programs.
2351 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2352 'bin', 'sbin', 'libexec', 'pkglib',
2354 return if ! @proglist;
2356 my $seen_global_libobjs =
2357 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2359 foreach my $pair (@proglist)
2361 my ($where, $one_file) = @$pair;
2363 my $seen_libobjs = 0;
2364 my $obj = get_object_extension '.$(OBJEXT)';
2366 # Strip any $(EXEEXT) suffix the user might have added, or this
2367 # will confuse &handle_source_transform and &check_canonical_spelling.
2368 # We'll add $(EXEEXT) back later anyway.
2369 $one_file =~ s/\$\(EXEEXT\)$//;
2371 # Canonicalize names and check for misspellings.
2372 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2373 '_SOURCES', '_OBJECTS',
2376 $where->push_context ("while processing program `$one_file'");
2377 $where->set (INTERNAL->get);
2379 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2380 NONLIBTOOL => 1, LIBTOOL => 0);
2382 if (var ($xname . "_LDADD"))
2384 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2388 # User didn't define prog_LDADD override. So do it.
2389 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2391 # This does a bit too much work. But we need it to
2392 # generate _DEPENDENCIES when appropriate.
2395 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2399 reject_var ($xname . '_LIBADD',
2400 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2402 set_seen ($xname . '_DEPENDENCIES');
2403 set_seen ($xname . '_LDFLAGS');
2405 # Determine program to use for link.
2406 my $xlink = &define_per_target_linker_variable ($linker, $xname);
2408 # If the resulting program lies into a subdirectory,
2409 # make sure this directory will exist.
2410 my $dirstamp = require_build_directory_maybe ($one_file);
2412 $output_rules .= &file_contents ('program',
2414 PROGRAM => $one_file,
2417 DIRSTAMP => $dirstamp,
2418 EXEEXT => '$(EXEEXT)');
2420 if ($seen_libobjs || $seen_global_libobjs)
2422 if (var ($xname . '_LDADD'))
2424 &check_libobjs_sources ($xname, $xname . '_LDADD');
2426 elsif (var ('LDADD'))
2428 &check_libobjs_sources ($xname, 'LDADD');
2435 # handle_libraries ()
2436 # -------------------
2438 sub handle_libraries
2440 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2441 'lib', 'pkglib', 'noinst', 'check');
2442 return if ! @liblist;
2444 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2449 my $var = rvar ($prefix[0] . '_LIBRARIES');
2450 $var->requires_variables ('library used', 'RANLIB');
2453 &define_variable ('AR', 'ar', INTERNAL);
2454 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2456 foreach my $pair (@liblist)
2458 my ($where, $onelib) = @$pair;
2460 my $seen_libobjs = 0;
2461 # Check that the library fits the standard naming convention.
2462 my $bn = basename ($onelib);
2463 if ($bn !~ /^lib.*\.a$/)
2465 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2466 my $suggestion = dirname ($onelib) . "/$bn";
2467 $suggestion =~ s|^\./||g;
2468 msg ('error-gnu/warn', $where,
2469 "`$onelib' is not a standard library name\n"
2470 . "did you mean `$suggestion'?")
2473 $where->push_context ("while processing library `$onelib'");
2474 $where->set (INTERNAL->get);
2476 my $obj = get_object_extension '.$(OBJEXT)';
2478 # Canonicalize names and check for misspellings.
2479 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2480 '_OBJECTS', '_DEPENDENCIES',
2483 if (! var ($xlib . '_AR'))
2485 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2488 # Generate support for conditional object inclusion in
2490 if (var ($xlib . '_LIBADD'))
2492 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2499 &define_variable ($xlib . "_LIBADD", '', $where);
2502 reject_var ($xlib . '_LDADD',
2503 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2505 # Make sure we at look at this.
2506 set_seen ($xlib . '_DEPENDENCIES');
2508 &handle_source_transform ($xlib, $onelib, $obj, $where,
2509 NONLIBTOOL => 1, LIBTOOL => 0);
2511 # If the resulting library lies into a subdirectory,
2512 # make sure this directory will exist.
2513 my $dirstamp = require_build_directory_maybe ($onelib);
2515 $output_rules .= &file_contents ('library',
2519 DIRSTAMP => $dirstamp);
2523 if (var ($xlib . '_LIBADD'))
2525 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2532 # handle_ltlibraries ()
2533 # ---------------------
2534 # Handle shared libraries.
2535 sub handle_ltlibraries
2537 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2538 'noinst', 'lib', 'pkglib', 'check');
2539 return if ! @liblist;
2541 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2546 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2547 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2552 my %liblocations = (); # Location (in Makefile.am) of each library.
2554 foreach my $key (@prefix)
2556 # Get the installation directory of each library.
2557 (my $dir = $key) =~ s/^nobase_//;
2558 my $var = rvar ($key . '_LTLIBRARIES');
2560 # We reject libraries which are installed in several places
2561 # in the same condition, because we can only specify one
2563 $var->traverse_recursively
2566 my ($var, $val, $cond, $full_cond) = @_;
2567 my $hcond = $full_cond->human;
2568 my $where = $var->rdef ($cond)->location;
2569 # A library cannot be installed in different directory
2570 # in overlapping conditions.
2571 if (exists $instconds{$val})
2574 $instconds{$val}->ambiguous_p ($val, $full_cond);
2578 error ($where, $msg, partial => 1);
2580 my $dirtxt = "installed in `$dir'";
2581 $dirtxt = "built for `$dir'"
2582 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2584 $full_cond->true ? "" : " in condition $hcond";
2586 error ($where, "`$val' should be $dirtxt$dircond ...",
2589 my $hacond = $acond->human;
2590 my $adir = $instdirs{$val}{$acond};
2591 my $adirtxt = "installed in `$adir'";
2592 $adirtxt = "built for `$adir'"
2593 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2594 || $adir eq 'check');
2595 my $adircond = $acond->true ? "" : " in condition $hacond";
2597 my $onlyone = ($dir ne $adir) ?
2598 ("\nLibtool libraries can be built for only one "
2599 . "destination.") : "";
2601 error ($liblocations{$val}{$acond},
2602 "... and should also be $adirtxt$adircond.$onlyone");
2608 $instconds{$val} = new Automake::DisjConditions;
2610 $instdirs{$val}{$full_cond} = $dir;
2611 $liblocations{$val}{$full_cond} = $where;
2612 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2618 skip_ac_subst => 1);
2621 foreach my $pair (@liblist)
2623 my ($where, $onelib) = @$pair;
2625 my $seen_libobjs = 0;
2626 my $obj = get_object_extension '.lo';
2628 # Canonicalize names and check for misspellings.
2629 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2630 '_SOURCES', '_OBJECTS',
2633 # Check that the library fits the standard naming convention.
2634 my $libname_rx = '^lib.*\.la';
2635 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2636 my $ldvar2 = var ('LDFLAGS');
2637 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2638 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2640 # Relax name checking for libtool modules.
2641 $libname_rx = '\.la';
2644 my $bn = basename ($onelib);
2645 if ($bn !~ /$libname_rx$/)
2647 my $type = 'library';
2648 if ($libname_rx eq '\.la')
2650 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2655 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2657 my $suggestion = dirname ($onelib) . "/$bn";
2658 $suggestion =~ s|^\./||g;
2659 msg ('error-gnu/warn', $where,
2660 "`$onelib' is not a standard libtool $type name\n"
2661 . "did you mean `$suggestion'?")
2664 $where->push_context ("while processing Libtool library `$onelib'");
2665 $where->set (INTERNAL->get);
2667 # Make sure we look at these.
2668 set_seen ($xlib . '_LDFLAGS');
2669 set_seen ($xlib . '_DEPENDENCIES');
2671 # Generate support for conditional object inclusion in
2673 if (var ($xlib . '_LIBADD'))
2675 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2682 &define_variable ($xlib . "_LIBADD", '', $where);
2685 reject_var ("${xlib}_LDADD",
2686 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2689 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2690 NONLIBTOOL => 0, LIBTOOL => 1);
2692 # Determine program to use for link.
2693 my $xlink = &define_per_target_linker_variable ($linker, $xlib);
2695 my $rpathvar = "am_${xlib}_rpath";
2696 my $rpath = "\$($rpathvar)";
2697 foreach my $rcond ($instconds{$onelib}->conds)
2700 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2701 || $instdirs{$onelib}{$rcond} eq 'noinst'
2702 || $instdirs{$onelib}{$rcond} eq 'check')
2704 # It's an EXTRA_ library, so we can't specify -rpath,
2705 # because we don't know where the library will end up.
2706 # The user probably knows, but generally speaking automake
2707 # doesn't -- and in fact configure could decide
2708 # dynamically between two different locations.
2713 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2717 # If $rcond is true there is only one condition and
2718 # there is no point defining an helper variable.
2723 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2727 # If the resulting library lies into a subdirectory,
2728 # make sure this directory will exist.
2729 my $dirstamp = require_build_directory_maybe ($onelib);
2731 # Remember to cleanup .libs/ in this directory.
2732 my $dirname = dirname $onelib;
2733 $libtool_clean_directories{$dirname} = 1;
2735 $output_rules .= &file_contents ('ltlibrary',
2737 LTLIBRARY => $onelib,
2738 XLTLIBRARY => $xlib,
2741 DIRSTAMP => $dirstamp);
2744 if (var ($xlib . '_LIBADD'))
2746 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2752 # See if any _SOURCES variable were misspelled.
2755 # It is ok if the user sets this particular variable.
2756 set_seen 'AM_LDFLAGS';
2758 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2760 foreach my $var (variables $primary)
2762 my $varname = $var->name;
2763 # A configure variable is always legitimate.
2764 next if exists $configure_vars{$varname};
2766 for my $cond ($var->conditions->conds)
2768 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2769 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2770 . " program or\nlibrary has `$1' as canonic name"
2771 . " (possible typo)")
2772 unless $var->rdef ($cond)->seen;
2782 # NOTE we no longer automatically clean SCRIPTS, because it is
2783 # useful to sometimes distribute scripts verbatim. This happens
2784 # e.g. in Automake itself.
2785 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2786 'bin', 'sbin', 'libexec', 'pkgdata',
2793 ## ------------------------ ##
2794 ## Handling Texinfo files. ##
2795 ## ------------------------ ##
2797 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2798 # &scan_texinfo_file ($FILENAME)
2799 # ------------------------------
2800 # $OUTFILE - name of the info file produced by $FILENAME.
2801 # $VFILE - name of the version.texi file used (undef if none).
2802 # @CLEAN_FILES - list of byproducts (indexes etc.)
2803 sub scan_texinfo_file ($)
2805 my ($filename) = @_;
2807 # Some of the following extensions are always created, no matter
2808 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2809 # are only created when they are used. We used to scan $FILENAME
2810 # for their use, but that is not enough: they could be used in
2811 # included files. We can't scan included files because we don't
2812 # know the include path. Therefore we always erase these files, no
2813 # matter whether they are used or not.
2815 # (tmp is only created if an @macro is used and a certain e-TeX
2816 # feature is not available.)
2817 my %clean_suffixes =
2818 map { $_ => 1 } (qw(aux log toc tmp
2824 pg pgs)); # grep 'new.*index' texinfo.tex
2826 my $texi = new Automake::XFile "< $filename";
2827 verb "reading $filename";
2829 my ($outfile, $vfile);
2830 while ($_ = $texi->getline)
2832 if (/^\@setfilename +(\S+)/)
2834 # Honor only the first @setfilename. (It's possible to have
2835 # more occurrences later if the manual shows examples of how
2836 # to use @setfilename...)
2840 if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
2842 error ("$filename:$.",
2843 "output `$outfile' has unrecognized extension");
2847 # A "version.texi" file is actually any file whose name matches
2849 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2854 # Try to find new or unused indexes.
2856 # Creating a new category of index.
2857 elsif (/^\@def(code)?index (\w+)/)
2859 $clean_suffixes{$2} = 1;
2860 $clean_suffixes{"$2s"} = 1;
2863 # Merging an index into an another.
2864 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2866 delete $clean_suffixes{"$2s"};
2867 $clean_suffixes{"$3s"} = 1;
2874 err_am "`$filename' missing \@setfilename";
2878 my $infobase = basename ($filename);
2879 $infobase =~ s/\.te?xi(nfo)?$//;
2880 return ($outfile, $vfile,
2881 map { "$infobase.$_" } (sort keys %clean_suffixes));
2885 # ($DIRSTAMP, @CLEAN_FILES)
2886 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2887 # ------------------------------------------------------------------
2888 # SOURCE - the source Texinfo file
2889 # DEST - the destination Info file
2890 # INSRC - wether DEST should be built in the source tree
2891 # DEPENDENCIES - known dependencies
2892 sub output_texinfo_build_rules ($$$@)
2894 my ($source, $dest, $insrc, @deps) = @_;
2896 # Split `a.texi' into `a' and `.texi'.
2897 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2898 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2903 # We can output two kinds of rules: the "generic" rules use Make
2904 # suffix rules and are appropriate when $source and $dest do not lie
2905 # in a sub-directory; the "specific" rules are needed in the other
2908 # The former are output only once (this is not really apparent here,
2909 # but just remember that some logic deeper in Automake will not
2910 # output the same rule twice); while the later need to be output for
2911 # each Texinfo source.
2914 my $sdir = dirname $source;
2915 if ($sdir eq '.' && dirname ($dest) eq '.')
2918 $makeinfoflags = '-I $(srcdir)';
2923 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
2926 # A directory can contain two kinds of info files: some built in the
2927 # source tree, and some built in the build tree. The rules are
2928 # different in each case. However we cannot output two different
2929 # set of generic rules. Because in-source builds are more usual, we
2930 # use generic rules in this case and fall back to "specific" rules
2931 # for build-dir builds. (It should not be a problem to invert this
2933 $generic = 0 unless $insrc;
2935 # We cannot use a suffix rule to build info files with an empty
2936 # extension. Otherwise we would output a single suffix inference
2937 # rule, with separate dependencies, as in
2941 # foo.info: foo.texi
2943 # which confuse Solaris make. (See the Autoconf manual for
2944 # details.) Therefore we use a specific rule in this case. This
2945 # applies to info files only (dvi and pdf files always have an
2947 my $generic_info = ($generic && $dsfx) ? 1 : 0;
2949 # If the resulting file lie into a subdirectory,
2950 # make sure this directory will exist.
2951 my $dirstamp = require_build_directory_maybe ($dest);
2953 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
2955 $output_rules .= file_contents ('texibuild',
2956 new Automake::Location,
2958 DEST_PREFIX => $dpfx,
2959 DEST_INFO_PREFIX => $dipfx,
2960 DEST_SUFFIX => $dsfx,
2961 DIRSTAMP => $dirstamp,
2962 GENERIC => $generic,
2963 GENERIC_INFO => $generic_info,
2965 MAKEINFOFLAGS => $makeinfoflags,
2968 SOURCE_INFO => ($generic_info
2970 SOURCE_REAL => $source,
2971 SOURCE_SUFFIX => $ssfx,
2973 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
2978 # handle_texinfo_helper ($info_texinfos)
2979 # --------------------------------------
2980 # Handle all Texinfo source; helper for handle_texinfo.
2981 sub handle_texinfo_helper ($)
2983 my ($info_texinfos) = @_;
2984 my (@infobase, @info_deps_list, @texi_deps);
2989 # Build a regex matching user-cleaned files.
2990 my $d = var 'DISTCLEANFILES';
2991 my $c = var 'CLEANFILES';
2993 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
2994 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
2995 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
2996 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
2999 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3001 my $infobase = $texi;
3002 $infobase =~ s/\.(txi|texinfo|texi)$//;
3004 if ($infobase eq $texi)
3006 # FIXME: report line number.
3007 err_am "texinfo file `$texi' has unrecognized extension";
3011 push @infobase, $infobase;
3013 # If 'version.texi' is referenced by input file, then include
3014 # automatic versioning capability.
3015 my ($out_file, $vtexi, @clean_files) =
3016 scan_texinfo_file ("$relative_dir/$texi")
3018 push (@texi_cleans, @clean_files);
3020 # If the Texinfo source is in a subdirectory, create the
3021 # resulting info in this subdirectory. If it is in the current
3022 # directory, try hard to not prefix "./" because it breaks the
3024 my $outdir = dirname ($texi) . '/';
3025 $outdir = "" if $outdir eq './';
3026 $out_file = $outdir . $out_file;
3028 # Until Automake 1.6.3, .info files were built in the
3029 # source tree. This was an obstacle to the support of
3030 # non-distributed .info files, and non-distributed .texi
3033 # * Non-distributed .texi files is important in some packages
3034 # where .texi files are built at make time, probably using
3035 # other binaries built in the package itself, maybe using
3036 # tools or information found on the build host. Because
3037 # these files are not distributed they are always rebuilt
3038 # at make time; they should therefore not lie in the source
3039 # directory. One plan was to support this using
3040 # nodist_info_TEXINFOS or something similar. (Doing this
3041 # requires some sanity checks. For instance Automake should
3043 # dist_info_TEXINFO = foo.texi
3044 # nodist_foo_TEXINFO = included.texi
3045 # because a distributed file should never depend on a
3046 # non-distributed file.)
3048 # * If .texi files are not distributed, then .info files should
3049 # not be distributed either. There are also cases where one
3050 # want to distribute .texi files, but do not want to
3051 # distribute the .info files. For instance the Texinfo package
3052 # distributes the tool used to build these files; it would
3053 # be a waste of space to distribute them. It's not clear
3054 # which syntax we should use to indicate that .info files should
3055 # not be distributed. Akim Demaille suggested that eventually
3056 # we switch to a new syntax:
3057 # | Maybe we should take some inspiration from what's already
3058 # | done in the rest of Automake. Maybe there is too much
3059 # | syntactic sugar here, and you want
3060 # | nodist_INFO = bar.info
3061 # | dist_bar_info_SOURCES = bar.texi
3062 # | bar_texi_DEPENDENCIES = foo.texi
3063 # | with a bit of magic to have bar.info represent the whole
3064 # | bar*info set. That's a lot more verbose that the current
3065 # | situation, but it is # not new, hence the user has less
3068 # | But there is still too much room for meaningless specs:
3069 # | nodist_INFO = bar.info
3070 # | dist_bar_info_SOURCES = bar.texi
3071 # | dist_PS = bar.ps something-written-by-hand.ps
3072 # | nodist_bar_ps_SOURCES = bar.texi
3073 # | bar_texi_DEPENDENCIES = foo.texi
3074 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3076 # Back to the point, it should be clear that in order to support
3077 # non-distributed .info files, we need to build them in the
3078 # build tree, not in the source tree (non-distributed .texi
3079 # files are less of a problem, because we do not output build
3080 # rules for them). In Automake 1.7 .info build rules have been
3081 # largely cleaned up so that .info files get always build in the
3082 # build tree, even when distributed. The idea was that
3083 # (1) if during a VPATH build the .info file was found to be
3084 # absent or out-of-date (in the source tree or in the
3085 # build tree), Make would rebuild it in the build tree.
3086 # If an up-to-date source-tree of the .info file existed,
3087 # make would not rebuild it in the build tree.
3088 # (2) having two copies of .info files, one in the source tree
3089 # and one (newer) in the build tree is not a problem
3090 # because `make dist' always pick files in the build tree
3092 # However it turned out the be a bad idea for several reasons:
3093 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3094 # like GNU Make on point (1) above. These implementations
3095 # of Make would always rebuild .info files in the build
3096 # tree, even if such files were up to date in the source
3097 # tree. Consequently, it was impossible to perform a VPATH
3098 # build of a package containing Texinfo files using these
3099 # Make implementations.
3100 # (Refer to the Autoconf Manual, section "Limitation of
3101 # Make", paragraph "VPATH", item "target lookup", for
3102 # an account of the differences between these
3104 # * The GNU Coding Standards require these files to be built
3105 # in the source-tree (when they are distributed, that is).
3106 # * Keeping a fresher copy of distributed files in the
3107 # build tree can be annoying during development because
3108 # - if the files is kept under CVS, you really want it
3109 # to be updated in the source tree
3110 # - it is confusing that `make distclean' does not erase
3111 # all files in the build tree.
3113 # Consequently, starting with Automake 1.8, .info files are
3114 # built in the source tree again. Because we still plan to
3115 # support non-distributed .info files at some point, we
3116 # have a single variable ($INSRC) that controls whether
3117 # the current .info file must be built in the source tree
3118 # or in the build tree. Actually this variable is switched
3119 # off for .info files that appear to be cleaned; this is
3120 # for backward compatibility with package such as Texinfo,
3121 # which do things like
3122 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3123 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3124 # # Do not create info files for distribution.
3126 # in order not to distribute .info files.
3127 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3129 my $soutdir = '$(srcdir)/' . $outdir;
3130 $outdir = $soutdir if $insrc;
3132 # If user specified file_TEXINFOS, then use that as explicit
3135 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3137 my $canonical = canonicalize ($infobase);
3138 if (var ($canonical . "_TEXINFOS"))
3140 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3141 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3144 my ($dirstamp, @cfiles) =
3145 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3146 push (@texi_cleans, @cfiles);
3148 push (@info_deps_list, $out_file);
3150 # If a vers*.texi file is needed, emit the rule.
3153 err_am ("`$vtexi', included in `$texi', "
3154 . "also included in `$versions{$vtexi}'")
3155 if defined $versions{$vtexi};
3156 $versions{$vtexi} = $texi;
3158 # We number the stamp-vti files. This is doable since the
3159 # actual names don't matter much. We only number starting
3160 # with the second one, so that the common case looks nice.
3161 my $vti = ($done ? $done : 'vti');
3164 # This is ugly, but it is our historical practice.
3165 if ($config_aux_dir_set_in_configure_ac)
3167 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3172 require_file_with_macro (TRUE, 'info_TEXINFOS',
3173 FOREIGN, 'mdate-sh');
3177 if ($config_aux_dir_set_in_configure_ac)
3179 $conf_dir = "$am_config_aux_dir/";
3183 $conf_dir = '$(srcdir)/';
3185 $output_rules .= file_contents ('texi-vers',
3186 new Automake::Location,
3189 STAMPVTI => "${soutdir}stamp-$vti",
3190 VTEXI => "$soutdir$vtexi",
3192 DIRSTAMP => $dirstamp);
3196 # Handle location of texinfo.tex.
3197 my $need_texi_file = 0;
3199 if (var ('TEXINFO_TEX'))
3201 # The user defined TEXINFO_TEX so assume he knows what he is
3203 $texinfodir = ('$(srcdir)/'
3204 . dirname (variable_value ('TEXINFO_TEX')));
3206 elsif (option 'cygnus')
3208 $texinfodir = '$(top_srcdir)/../texinfo';
3209 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3211 elsif ($config_aux_dir_set_in_configure_ac)
3213 $texinfodir = $am_config_aux_dir;
3214 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3215 $need_texi_file = 2; # so that we require_conf_file later
3219 $texinfodir = '$(srcdir)';
3220 $need_texi_file = 1;
3222 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3224 push (@dist_targets, 'dist-info');
3226 if (! option 'no-installinfo')
3228 # Make sure documentation is made and installed first. Use
3229 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3230 # get run twice during "make all".
3231 unshift (@all, '$(INFO_DEPS)');
3234 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3235 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3236 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3237 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3239 # This next isn't strictly needed now -- the places that look here
3240 # could easily be changed to look in info_TEXINFOS. But this is
3241 # probably better, in case noinst_TEXINFOS is ever supported.
3242 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3244 # Do some error checking. Note that this file is not required
3245 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3247 if ($need_texi_file && ! option 'no-texinfo.tex')
3249 if ($need_texi_file > 1)
3251 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3256 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3261 return makefile_wrap ("", "\t ", @texi_cleans);
3267 # Handle all Texinfo source.
3268 sub handle_texinfo ()
3270 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3271 # FIXME: I think this is an obsolete future feature name.
3272 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3274 my $info_texinfos = var ('info_TEXINFOS');
3278 $texiclean = handle_texinfo_helper ($info_texinfos);
3280 $output_rules .= file_contents ('texinfos',
3281 new Automake::Location,
3282 TEXICLEAN => $texiclean,
3283 'LOCAL-TEXIS' => !!$info_texinfos);
3287 # Handle any man pages.
3288 sub handle_man_pages
3290 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3292 # Find all the sections in use. We do this by first looking for
3293 # "standard" sections, and then looking for any additional
3294 # sections used in man_MANS.
3295 my (%sections, %vlist);
3296 # We handle nodist_ for uniformity. man pages aren't distributed
3297 # by default so it isn't actually very important.
3298 foreach my $pfx ('', 'dist_', 'nodist_')
3300 # Add more sections as needed.
3301 foreach my $section ('0'..'9', 'n', 'l')
3303 my $varname = $pfx . 'man' . $section . '_MANS';
3306 $sections{$section} = 1;
3307 $varname = '$(' . $varname . ')';
3308 $vlist{$varname} = 1;
3310 &push_dist_common ($varname)
3315 my $varname = $pfx . 'man_MANS';
3316 my $var = var ($varname);
3319 foreach ($var->value_as_list_recursive)
3321 # A page like `foo.1c' goes into man1dir.
3322 if (/\.([0-9a-z])([a-z]*)$/)
3328 $varname = '$(' . $varname . ')';
3329 $vlist{$varname} = 1;
3330 &push_dist_common ($varname)
3335 return unless %sections;
3337 # Now for each section, generate an install and uninstall rule.
3338 # Sort sections so output is deterministic.
3339 foreach my $section (sort keys %sections)
3341 $output_rules .= &file_contents ('mans',
3342 new Automake::Location,
3343 SECTION => $section);
3346 my @mans = sort keys %vlist;
3347 $output_vars .= file_contents ('mans-vars',
3348 new Automake::Location,
3351 push (@all, '$(MANS)')
3352 unless option 'no-installman';
3355 # Handle DATA variables.
3358 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3359 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3360 'sysconf', 'sharedstate', 'localstate',
3361 'pkgdata', 'lisp', 'noinst', 'check');
3369 if (var ('SUBDIRS'))
3371 $output_rules .= ("tags-recursive:\n"
3372 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3373 # Never fail here if a subdir fails; it
3375 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3376 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3378 push (@tag_deps, 'tags-recursive');
3379 &depend ('.PHONY', 'tags-recursive');
3381 $output_rules .= ("ctags-recursive:\n"
3382 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3383 # Never fail here if a subdir fails; it
3385 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3386 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3388 push (@ctag_deps, 'ctags-recursive');
3389 &depend ('.PHONY', 'ctags-recursive');
3392 if (&saw_sources_p (1)
3393 || var ('ETAGS_ARGS')
3397 foreach my $spec (@config_headers)
3399 my ($out, @ins) = split_config_file_spec ($spec);
3400 foreach my $in (@ins)
3402 # If the config header source is in this directory,
3404 push @config, basename ($in)
3405 if $relative_dir eq dirname ($in);
3408 $output_rules .= &file_contents ('tags',
3409 new Automake::Location,
3410 CONFIG => "@config",
3411 TAGSDIRS => "@tag_deps",
3412 CTAGSDIRS => "@ctag_deps");
3414 set_seen 'TAGS_DEPENDENCIES';
3416 elsif (reject_var ('TAGS_DEPENDENCIES',
3417 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3418 . "without\nsources or `ETAGS_ARGS'"))
3423 # Every Makefile must define some sort of TAGS rule.
3424 # Otherwise, it would be possible for a top-level "make TAGS"
3425 # to fail because some subdirectory failed.
3426 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3428 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3432 # Handle multilib support.
3435 if ($seen_multilib && $relative_dir eq '.')
3437 $output_rules .= &file_contents ('multilib', new Automake::Location);
3438 push (@all, 'all-multi');
3443 # user_phony_rule ($NAME)
3444 # -----------------------
3445 # Return false if rule $NAME does not exist. Otherwise,
3446 # declare it as phony, complete its definition (in case it is
3447 # conditional), and return its Automake::Rule instance.
3448 sub user_phony_rule ($)
3451 my $rule = rule $name;
3454 depend ('.PHONY', $name);
3455 # Define $NAME in all condition where it is not already defined,
3456 # so that it is always OK to depend on $NAME.
3457 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3459 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3461 $output_rules .= $c->subst_string . "$name:\n";
3469 # &for_dist_common ($A, $B)
3470 # -------------------------
3471 # Subroutine for &handle_dist: sort files to dist.
3473 # We put README first because it then becomes easier to make a
3474 # Usenet-compliant shar file (in these, README must be first).
3476 # FIXME: do more ordering of files here.
3491 # Handle 'dist' target.
3494 # Substutions for distdit.am
3497 # Define DIST_SUBDIRS. This must always be done, regardless of the
3498 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3499 my $subdirs = var ('SUBDIRS');
3502 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3503 # to all possible directories, and use it. If DIST_SUBDIRS is
3504 # defined, just use it.
3506 # Note that we check DIST_SUBDIRS first on purpose, so that
3507 # we don't call has_conditional_contents for now reason.
3508 # (In the past one project used so many conditional subdirectories
3509 # that calling has_conditional_contents on SUBDIRS caused
3510 # automake to grow to 150Mb -- this should not happen with
3511 # the current implementation of has_conditional_contents,
3512 # but it's more efficient to avoid the call anyway.)
3513 if (var ('DIST_SUBDIRS'))
3516 elsif ($subdirs->has_conditional_contents)
3518 define_pretty_variable
3519 ('DIST_SUBDIRS', TRUE, INTERNAL,
3520 uniq ($subdirs->value_as_list_recursive));
3524 # We always define this because that is what `distclean'
3526 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3531 # The remaining definitions are only required when a dist target is used.
3532 return if option 'no-dist';
3534 # At least one of the archive formats must be enabled.
3535 if ($relative_dir eq '.')
3537 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3538 $archive_defined ||=
3539 grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
3540 error (option 'no-dist-gzip',
3541 "no-dist-gzip specified but no dist-* specified, "
3542 . "at least one archive format must be enabled")
3543 unless $archive_defined;
3546 # Look for common files that should be included in distribution.
3547 # If the aux dir is set, and it does not have a Makefile.am, then
3548 # we check for these files there as well.
3550 if ($relative_dir eq '.'
3551 && $config_aux_dir_set_in_configure_ac)
3553 if (! &is_make_dir ($config_aux_dir))
3558 foreach my $cfile (@common_files)
3560 if (dir_has_case_matching_file ($relative_dir, $cfile)
3561 # The file might be absent, but if it can be built it's ok.
3564 &push_dist_common ($cfile);
3567 # Don't use `elsif' here because a file might meaningfully
3568 # appear in both directories.
3569 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3571 &push_dist_common ("$config_aux_dir/$cfile")
3575 # We might copy elements from $configure_dist_common to
3576 # %dist_common if we think we need to. If the file appears in our
3577 # directory, we would have discovered it already, so we don't
3578 # check that. But if the file is in a subdir without a Makefile,
3579 # we want to distribute it here if we are doing `.'. Ugly!
3580 if ($relative_dir eq '.')
3582 foreach my $file (split (' ' , $configure_dist_common))
3584 push_dist_common ($file)
3585 unless is_make_dir (dirname ($file));
3589 # Files to distributed. Don't use ->value_as_list_recursive
3590 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3591 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3592 @dist_common = uniq (sort for_dist_common (@dist_common));
3593 variable_delete 'DIST_COMMON';
3594 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3596 # Now that we've processed DIST_COMMON, disallow further attempts
3598 $handle_dist_run = 1;
3600 # Scan EXTRA_DIST to see if we need to distribute anything from a
3601 # subdir. If so, add it to the list. I didn't want to do this
3602 # originally, but there were so many requests that I finally
3604 my $extra_dist = var ('EXTRA_DIST');
3607 # FIXME: This should be fixed to work with conditions. That
3608 # will require only making the entries in %dist_dirs under the
3609 # appropriate condition. This is meaningful if the nature of
3610 # the distribution should depend upon the configure options
3612 foreach ($extra_dist->value_as_list_recursive (skip_ac_subst => 1))
3614 next unless s,/+[^/]+$,,;
3620 # We have to check DIST_COMMON for extra directories in case the
3621 # user put a source used in AC_OUTPUT into a subdir.
3622 my $topsrcdir = backname ($relative_dir);
3623 foreach (rvar ('DIST_COMMON')->value_as_list_recursive (skip_ac_subst => 1))
3625 s/\$\(top_srcdir\)/$topsrcdir/;
3627 # Strip any leading `./'.
3629 next unless s,/+[^/]+$,,;
3634 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3635 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3637 # Prepend $(distdir) to each directory given.
3638 my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
3639 $transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
3641 # If the target `dist-hook' exists, make sure it is run. This
3642 # allows users to do random weird things to the distribution
3643 # before it is packaged up.
3644 push (@dist_targets, 'dist-hook')
3645 if user_phony_rule 'dist-hook';
3646 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3648 my $flm = option ('filename-length-max');
3649 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3651 $output_rules .= &file_contents ('distdir',
3652 new Automake::Location,
3654 FILENAME_FILTER => $filename_filter);
3658 # check_directory ($NAME, $WHERE)
3659 # -------------------------------
3660 # Ensure $NAME is a directory, and that it uses sane name.
3661 # Use $WHERE as a location in the diagnostic, if any.
3662 sub check_directory ($$)
3664 my ($dir, $where) = @_;
3666 error $where, "required directory $relative_dir/$dir does not exist"
3667 unless -d "$relative_dir/$dir";
3669 # If an `obj/' directory exists, BSD make will enter it before
3670 # reading `Makefile'. Hence the `Makefile' in the current directory
3676 # % cat obj/Makefile
3682 # % pmake # BSD make
3685 msg ('portability', $where,
3686 "naming a subdirectory `obj' causes troubles with BSD make")
3689 # `aux' is probably the most important of the following forbidden name,
3690 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3691 msg ('portability', $where,
3692 "name `$dir' is reserved on W32 and DOS platforms")
3693 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3696 # check_directories_in_var ($VARIABLE)
3697 # ------------------------------------
3698 # Recursively check all items in variables $VARIABLE as directories
3699 sub check_directories_in_var ($)
3702 $var->traverse_recursively
3705 my ($var, $val, $cond, $full_cond) = @_;
3706 check_directory ($val, $var->rdef ($cond)->location);
3710 skip_ac_subst => 1);
3713 # &handle_subdirs ()
3714 # ------------------
3715 # Handle subdirectories.
3716 sub handle_subdirs ()
3718 my $subdirs = var ('SUBDIRS');
3722 check_directories_in_var $subdirs;
3724 my $dsubdirs = var ('DIST_SUBDIRS');
3725 check_directories_in_var $dsubdirs
3728 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3729 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3733 # ($REGEN, @DEPENDENCIES)
3736 # If aclocal.m4 creation is automated, return the list of its dependencies.
3737 sub scan_aclocal_m4 ()
3739 my $regen_aclocal = 0;
3741 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3742 set_seen 'CONFIGURE_DEPENDENCIES';
3744 if (-f 'aclocal.m4')
3746 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3748 my $aclocal = new Automake::XFile "< aclocal.m4";
3749 my $line = $aclocal->getline;
3750 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3755 if (set_seen ('ACLOCAL_M4_SOURCES'))
3757 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3758 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3759 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3760 . "It should be safe to simply remove it.");
3763 # Note that it might be possible that aclocal.m4 doesn't exist but
3764 # should be auto-generated. This case probably isn't very
3767 return ($regen_aclocal, @ac_deps);
3771 # Helper function for substitute_ac_subst_variables.
3772 sub substitute_ac_subst_variables_worker($)
3775 return "\@$token\@" if var $token;
3776 return "\${$token\}";
3779 # substitute_ac_subst_variables ($TEXT)
3780 # -------------------------------------
3781 # Replace any occurence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3783 sub substitute_ac_subst_variables ($)
3786 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3791 # &prepend_srcdir (@INPUTS)
3792 # -------------------------
3793 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3794 # if an input file has a directory part the same as the current
3795 # directory, then the directory part is simply replaced by $(srcdir).
3796 # But if the directory part is different, then $(top_srcdir) is
3798 sub prepend_srcdir (@)
3803 foreach my $single (@inputs)
3805 if (dirname ($single) eq $relative_dir)
3807 push (@newinputs, '$(srcdir)/' . basename ($single));
3811 push (@newinputs, '$(top_srcdir)/' . $single);
3818 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3819 # ---------------------------------------------------
3820 # Compute a list of dependencies appropriate for the rebuild
3822 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3823 # Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
3824 sub rewrite_inputs_into_dependencies ($@)
3826 my ($file, @inputs) = @_;
3831 # We cannot create dependencies on shell variables.
3832 next if (substitute_ac_subst_variables $i) =~ /\$/;
3834 if (exists $ac_config_files_location{$i})
3836 my $di = dirname $i;
3837 if ($di eq $relative_dir)
3841 # In the top-level Makefile we do not use $(top_builddir), because
3842 # we are already there, and since the targets are built without
3843 # a $(top_builddir), it helps BSD Make to match them with
3845 elsif ($relative_dir ne '.')
3847 $i = '$(top_builddir)/' . $i;
3852 msg ('error', $ac_config_files_location{$file},
3853 "required file `$i' not found")
3854 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3855 ($i) = prepend_srcdir ($i);
3856 push_dist_common ($i);
3865 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3866 # ------------------------------------------------------------------
3867 # Handle remaking and configure stuff.
3868 # We need the name of the input file, to do proper remaking rules.
3869 sub handle_configure ($$$@)
3871 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
3873 prog_error 'empty @inputs'
3876 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
3878 my $rel_makefile = basename $makefile;
3880 my $colon_infile = ':' . join (':', @inputs);
3881 $colon_infile = '' if $colon_infile eq ":$makefile.in";
3882 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
3883 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
3884 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
3885 @configure_deps, @aclocal_m4_deps,
3886 '$(top_srcdir)/' . $configure_ac);
3887 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
3888 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
3889 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
3892 $output_rules .= file_contents
3894 new Automake::Location,
3895 MAKEFILE => $rel_makefile,
3896 'MAKEFILE-DEPS' => "@rewritten",
3897 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
3898 'MAKEFILE-IN' => $rel_makefile_in,
3899 'MAKEFILE-IN-DEPS' => "@include_stack",
3900 'MAKEFILE-AM' => $rel_makefile_am,
3901 STRICTNESS => global_option 'cygnus'
3902 ? 'cygnus' : $strictness_name,
3903 'USE-DEPS' => global_option 'no-dependencies'
3904 ? ' --ignore-deps' : '',
3905 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
3906 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
3908 if ($relative_dir eq '.')
3910 &push_dist_common ('acconfig.h')
3914 # If we have a configure header, require it.
3916 my @distclean_config;
3917 foreach my $spec (@config_headers)
3920 # $CONFIG_H_PATH: config.h from top level.
3921 my ($config_h_path, @ins) = split_config_file_spec ($spec);
3922 my $config_h_dir = dirname ($config_h_path);
3924 # If the header is in the current directory we want to build
3925 # the header here. Otherwise, if we're at the topmost
3926 # directory and the header's directory doesn't have a
3927 # Makefile, then we also want to build the header.
3928 if ($relative_dir eq $config_h_dir
3929 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
3931 my ($cn_sans_dir, $stamp_dir);
3932 if ($relative_dir eq $config_h_dir)
3934 $cn_sans_dir = basename ($config_h_path);
3939 $cn_sans_dir = $config_h_path;
3940 if ($config_h_dir eq '.')
3946 $stamp_dir = $config_h_dir . '/';
3950 # This will also distribute all inputs.
3951 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
3953 # Cannot define rebuild rules for filenames with shell variables.
3954 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
3956 # Header defined in this directory.
3958 if (-f $config_h_path . '.top')
3960 push (@files, "$cn_sans_dir.top");
3962 if (-f $config_h_path . '.bot')
3964 push (@files, "$cn_sans_dir.bot");
3967 push_dist_common (@files);
3969 # For now, acconfig.h can only appear in the top srcdir.
3970 if (-f 'acconfig.h')
3972 push (@files, '$(top_srcdir)/acconfig.h');
3975 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
3977 file_contents ('remake-hdr',
3978 new Automake::Location,
3980 CONFIG_H => $cn_sans_dir,
3981 CONFIG_HIN => $ins[0],
3982 CONFIG_H_DEPS => "@ins",
3983 CONFIG_H_PATH => $config_h_path,
3986 push @distclean_config, $cn_sans_dir, $stamp;
3990 $output_rules .= file_contents ('clean-hdr',
3991 new Automake::Location,
3992 FILES => "@distclean_config")
3993 if @distclean_config;
3995 # Distribute and define mkinstalldirs only if it is already present
3996 # in the package, for backward compatibility (some people may still
3997 # use $(mkinstalldirs)).
3998 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4001 # Use require_file so that any existing script gets updated
4002 # by --force-missing.
4003 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4004 define_variable ('mkinstalldirs',
4005 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4009 # Use $(install_sh), not $(mkdir_p) because the latter requires
4010 # at least one argument, and $(mkinstalldirs) used to work
4011 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4012 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4015 reject_var ('CONFIG_HEADER',
4016 "`CONFIG_HEADER' is an anachronism; now determined "
4017 . "automatically\nfrom `$configure_ac'");
4020 foreach my $spec (@config_headers)
4022 my ($out, @ins) = split_config_file_spec ($spec);
4023 # Generate CONFIG_HEADER define.
4024 if ($relative_dir eq dirname ($out))
4026 push @config_h, basename ($out);
4030 push @config_h, "\$(top_builddir)/$out";
4033 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4036 # Now look for other files in this directory which must be remade
4037 # by config.status, and generate rules for them.
4038 my @actual_other_files = ();
4039 foreach my $lfile (@other_input_files)
4043 if ($lfile =~ /^([^:]*):(.*)$/)
4045 # This is the ":" syntax of AC_OUTPUT.
4047 @inputs = split (':', $2);
4053 @inputs = $file . '.in';
4056 # Automake files should not be stored in here, but in %MAKE_LIST.
4057 prog_error ("$lfile in \@other_input_files\n"
4058 . "\@other_input_files = (@other_input_files)")
4059 if -f $file . '.am';
4061 my $local = basename ($file);
4063 # Make sure the dist directory for each input file is created.
4064 # We only have to do this at the topmost level though. This
4065 # is a bit ugly but it easier than spreading out the logic,
4066 # especially in cases like AC_OUTPUT(foo/out:bar/in), where
4067 # there is no Makefile in bar/.
4068 if ($relative_dir eq '.')
4072 $dist_dirs{dirname ($_)} = 1;
4076 # We skip files that aren't in this directory. However, if
4077 # the file's directory does not have a Makefile, and we are
4078 # currently doing `.', then we create a rule to rebuild the
4079 # file in the subdir.
4080 my $fd = dirname ($file);
4081 if ($fd ne $relative_dir)
4083 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4093 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4095 # Cannot output rules for shell variables.
4096 next if (substitute_ac_subst_variables $local) =~ /\$/;
4098 $output_rules .= ($local . ': '
4099 . '$(top_builddir)/config.status '
4100 . "@rewritten_inputs\n"
4102 . 'cd $(top_builddir) && '
4103 . '$(SHELL) ./config.status '
4104 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4107 push (@actual_other_files, $local);
4110 # For links we should clean destinations and distribute sources.
4111 foreach my $spec (@config_links)
4113 my ($link, $file) = split /:/, $spec;
4114 # Some people do AC_CONFIG_LINKS($computed). We only handle
4115 # the DEST:SRC form.
4117 my $where = $ac_config_files_location{$link};
4119 # Skip destinations that contain shell variables.
4120 if ((substitute_ac_subst_variables $link) !~ /\$/)
4122 # We skip links that aren't in this directory. However, if
4123 # the link's directory does not have a Makefile, and we are
4124 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4125 # in `.'s Makefile.in.
4126 my $local = basename ($link);
4127 my $fd = dirname ($link);
4128 if ($fd ne $relative_dir)
4130 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4139 push @actual_other_files, $local if $local;
4142 # Do not process sources that contain shell variables.
4143 if ((substitute_ac_subst_variables $file) !~ /\$/)
4145 my $fd = dirname ($file);
4147 # Make sure the dist directory for each input file is created.
4148 # We only have to do this at the topmost level though.
4149 if ($relative_dir eq '.')
4151 $dist_dirs{$fd} = 1;
4154 # We distribute files that are in this directory.
4155 # At the top-level (`.') we also distribute files whose
4156 # directory does not have a Makefile.
4157 if (($fd eq $relative_dir)
4158 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4160 # The following will distribute $file as a side-effect when
4161 # it is appropriate (i.e., when $file is not already an output).
4162 # We do not need the result, just the side-effect.
4163 rewrite_inputs_into_dependencies ($link, $file);
4168 # These files get removed by "make distclean".
4169 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4170 @actual_other_files);
4176 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4177 'oldinclude', 'pkginclude',
4181 next unless $_->[1] =~ /\..*$/;
4182 &saw_extension ($&);
4188 return if ! $seen_gettext || $relative_dir ne '.';
4190 my $subdirs = var 'SUBDIRS';
4194 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4198 # Perform some sanity checks to help users get the right setup.
4199 # We disable these tests when po/ doesn't exist in order not to disallow
4200 # unusual gettext setups.
4205 # | 1) If a package doesn't have a directory po/ at top level, it
4206 # | will likely have multiple po/ directories in subpackages.
4208 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4209 # | is used without 'external'. It is also useful to warn for the
4210 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4211 # | warnings apply only to the usual layout of packages, therefore
4212 # | they should both be disabled if no po/ directory is found at
4217 my @subdirs = $subdirs->value_as_list_recursive;
4219 msg_var ('syntax', $subdirs,
4220 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4221 if ! grep ($_ eq 'po', @subdirs);
4223 # intl/ is not required when AM_GNU_GETTEXT is called with
4224 # the `external' option.
4225 msg_var ('syntax', $subdirs,
4226 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4227 if (! $seen_gettext_external
4228 && ! grep ($_ eq 'intl', @subdirs));
4230 # intl/ should not be used with AM_GNU_GETTEXT([external])
4231 msg_var ('syntax', $subdirs,
4232 "`intl' should not be in SUBDIRS when "
4233 . "AM_GNU_GETTEXT([external]) is used")
4234 if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
4237 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4240 # Handle footer elements.
4243 reject_rule ('.SUFFIXES',
4244 "use variable `SUFFIXES', not target `.SUFFIXES'");
4246 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4247 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4248 # anything else, by sticking it right after the default: target.
4249 $output_header .= ".SUFFIXES:\n";
4250 my $suffixes = var 'SUFFIXES';
4251 my @suffixes = Automake::Rule::suffixes;
4252 if (@suffixes || $suffixes)
4254 # Make sure SUFFIXES has unique elements. Sort them to ensure
4255 # the output remains consistent. However, $(SUFFIXES) is
4256 # always at the start of the list, unsorted. This is done
4257 # because make will choose rules depending on the ordering of
4258 # suffixes, and this lets the user have some control. Push
4259 # actual suffixes, and not $(SUFFIXES). Some versions of make
4260 # do not like variable substitutions on the .SUFFIXES line.
4261 my @user_suffixes = ($suffixes
4262 ? $suffixes->value_as_list_recursive : ());
4264 my %suffixes = map { $_ => 1 } @suffixes;
4265 delete @suffixes{@user_suffixes};
4267 $output_header .= (".SUFFIXES: "
4268 . join (' ', @user_suffixes, sort keys %suffixes)
4272 $output_trailer .= file_contents ('footer', new Automake::Location);
4276 # Generate `make install' rules.
4277 sub handle_install ()
4279 $output_rules .= &file_contents
4281 new Automake::Location,
4282 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4283 ? (" \$(BUILT_SOURCES)\n"
4284 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4286 'installdirs-local' => (user_phony_rule 'installdirs-local'
4287 ? ' installdirs-local' : ''),
4288 am__installdirs => variable_value ('am__installdirs') || '');
4292 # Deal with all and all-am.
4295 my ($makefile) = @_;
4299 # Put this at the beginning for the sake of non-GNU makes. This
4300 # is still wrong if these makes can run parallel jobs. But it is
4302 unshift (@all, basename ($makefile));
4304 foreach my $spec (@config_headers)
4306 my ($out, @ins) = split_config_file_spec ($spec);
4307 push (@all, basename ($out))
4308 if dirname ($out) eq $relative_dir;
4311 # Install `all' hooks.
4312 push (@all, "all-local")
4313 if user_phony_rule "all-local";
4315 &pretty_print_rule ("all-am:", "\t\t", @all);
4316 &depend ('.PHONY', 'all-am', 'all');
4321 my @local_headers = ();
4322 push @local_headers, '$(BUILT_SOURCES)'
4323 if var ('BUILT_SOURCES');
4324 foreach my $spec (@config_headers)
4326 my ($out, @ins) = split_config_file_spec ($spec);
4327 push @local_headers, basename ($out)
4328 if dirname ($out) eq $relative_dir;
4333 # We need to make sure config.h is built before we recurse.
4334 # We also want to make sure that built sources are built
4335 # before any ordinary `all' targets are run. We can't do this
4336 # by changing the order of dependencies to the "all" because
4337 # that breaks when using parallel makes. Instead we handle
4338 # things explicitly.
4339 $output_all .= ("all: @local_headers"
4341 . '$(MAKE) $(AM_MAKEFLAGS) '
4342 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4347 $output_all .= "all: " . (var ('SUBDIRS')
4348 ? 'all-recursive' : 'all-am') . "\n\n";
4353 # &do_check_merge_target ()
4354 # -------------------------
4355 # Handle check merge target specially.
4356 sub do_check_merge_target ()
4358 # Include user-defined local form of target.
4359 push @check_tests, 'check-local'
4360 if user_phony_rule 'check-local';
4362 # In --cygnus mode, check doesn't depend on all.
4363 if (option 'cygnus')
4365 # Just run the local check rules.
4366 pretty_print_rule ('check-am:', "\t\t", @check);
4370 # The check target must depend on the local equivalent of
4371 # `all', to ensure all the primary targets are built. Then it
4372 # must build the local check rules.
4373 $output_rules .= "check-am: all-am\n";
4374 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4378 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4382 depend '.PHONY', 'check', 'check-am';
4383 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4384 $output_rules .= ("check: "
4385 . (var ('BUILT_SOURCES')
4386 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4388 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4392 # handle_clean ($MAKEFILE)
4393 # ------------------------
4394 # Handle all 'clean' targets.
4395 sub handle_clean ($)
4397 my ($makefile) = @_;
4399 # Clean the files listed in user variables if they exist.
4400 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4401 if var ('MOSTLYCLEANFILES');
4402 $clean_files{'$(CLEANFILES)'} = CLEAN
4403 if var ('CLEANFILES');
4404 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4405 if var ('DISTCLEANFILES');
4406 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4407 if var ('MAINTAINERCLEANFILES');
4409 # Built sources are automatically removed by maintainer-clean.
4410 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4411 if var ('BUILT_SOURCES');
4413 # Compute a list of "rm"s to run for each target.
4414 my %rms = (MOSTLY_CLEAN, [],
4417 MAINTAINER_CLEAN, []);
4419 foreach my $file (keys %clean_files)
4421 my $when = $clean_files{$file};
4422 prog_error 'invalid entry in %clean_files'
4423 unless exists $rms{$when};
4425 my $rm = "rm -f $file";
4426 # If file is a variable, make sure when don't call `rm -f' without args.
4427 $rm ="test -z \"$file\" || $rm"
4428 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4430 push @{$rms{$when}}, "\t-$rm\n";
4433 $output_rules .= &file_contents
4435 new Automake::Location,
4436 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4437 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4438 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4439 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4440 MAKEFILE => basename $makefile,
4445 # &target_cmp ($A, $B)
4446 # --------------------
4447 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4448 # other `.TARGETS' be last.
4451 return 0 if $a eq $b;
4453 my $a1 = substr ($a, 0, 1);
4454 my $b1 = substr ($b, 0, 1);
4457 return -1 if $b1 eq '.';
4458 return 1 if $a1 eq '.';
4464 # &handle_factored_dependencies ()
4465 # --------------------------------
4466 # Handle everything related to gathered targets.
4467 sub handle_factored_dependencies
4470 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4471 'uninstall-exec-local', 'uninstall-exec-hook',
4472 'uninstall-dvi-local',
4473 'uninstall-html-local',
4474 'uninstall-info-local',
4475 'uninstall-pdf-local',
4476 'uninstall-ps-local')
4480 reject_rule ($utarg, "use `$x', not `$utarg'");
4483 reject_rule ('install-local',
4484 "use `install-data-local' or `install-exec-local', "
4485 . "not `install-local'");
4487 reject_rule ('install-hook',
4488 "use `install-data-hook' or `install-exec-hook', "
4489 . "not `install-hook'");
4491 # Install the -local hooks.
4492 foreach (keys %dependencies)
4494 # Hooks are installed on the -am targets.
4496 depend ("$_-am", "$_-local")
4497 if user_phony_rule "$_-local";
4500 # Install the -hook hooks.
4501 # FIXME: Why not be as liberal as we are with -local hooks?
4502 foreach ('install-exec', 'install-data', 'uninstall')
4504 if (user_phony_rule "$_-hook")
4506 $actions{"$_-am"} .=
4507 ("\t\@\$(NORMAL_INSTALL)\n"
4508 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4509 depend ('.MAKE', "$_-am");
4513 # All the required targets are phony.
4514 depend ('.PHONY', keys %required_targets);
4516 # Actually output gathered targets.
4517 foreach (sort target_cmp keys %dependencies)
4519 # If there is nothing about this guy, skip it.
4521 unless (@{$dependencies{$_}}
4523 || $required_targets{$_});
4525 # Define gathered targets in undefined conditions.
4526 # FIXME: Right now we must handle .PHONY as an exception,
4527 # because people write things like
4528 # .PHONY: myphonytarget
4529 # to append dependencies. This would not work if Automake
4530 # refrained from defining its own .PHONY target as it does
4531 # with other overridden targets.
4532 # Likewise for `.MAKE'.
4533 my @undefined_conds = (TRUE,);
4534 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4537 Automake::Rule::define ($_, 'internal',
4538 RULE_AUTOMAKE, TRUE, INTERNAL);
4540 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4541 foreach my $cond (@undefined_conds)
4543 my $condstr = $cond->subst_string;
4544 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4545 $output_rules .= $actions{$_} if defined $actions{$_};
4546 $output_rules .= "\n";
4552 # &handle_tests_dejagnu ()
4553 # ------------------------
4554 sub handle_tests_dejagnu
4556 push (@check_tests, 'check-DEJAGNU');
4557 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4561 # Handle TESTS variable and other checks.
4564 if (option 'dejagnu')
4566 &handle_tests_dejagnu;
4570 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4572 reject_var ($c, "`$c' defined but `dejagnu' not in "
4573 . "`AUTOMAKE_OPTIONS'");
4579 push (@check_tests, 'check-TESTS');
4580 $output_rules .= &file_contents ('check', new Automake::Location);
4584 # Handle Emacs Lisp.
4585 sub handle_emacs_lisp
4587 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4590 return if ! @elfiles;
4592 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4593 map { $_->[1] } @elfiles);
4594 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4595 '$(am__ELFILES:.el=.elc)');
4596 # This one can be overridden by users.
4597 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4599 push @all, '$(ELCFILES)';
4601 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4602 'EMACS', 'lispdir');
4603 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4604 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4610 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4612 return if ! @pyfiles;
4614 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4615 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4616 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4622 my @sourcelist = &am_install_var ('-candist',
4624 'java', 'noinst', 'check');
4625 return if ! @sourcelist;
4627 my @prefix = am_primary_prefixes ('JAVA', 1,
4628 'java', 'noinst', 'check');
4631 foreach my $curs (@prefix)
4634 if $curs eq 'EXTRA';
4636 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4642 push (@all, 'class' . $dir . '.stamp');
4646 # Handle some of the minor options.
4647 sub handle_minor_options
4649 if (option 'readme-alpha')
4651 if ($relative_dir eq '.')
4653 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4655 msg ('error-gnits', $package_version_location,
4656 "version `$package_version' doesn't follow " .
4659 if (defined $1 && -f 'README-alpha')
4661 # This means we have an alpha release. See
4662 # GNITS_VERSION_PATTERN for details.
4663 push_dist_common ('README-alpha');
4669 ################################################################
4671 # ($OUTPUT, @INPUTS)
4672 # &split_config_file_spec ($SPEC)
4673 # -------------------------------
4674 # Decode the Autoconf syntax for config files (files, headers, links
4676 sub split_config_file_spec ($)
4679 my ($output, @inputs) = split (/:/, $spec);
4681 push @inputs, "$output.in"
4684 return ($output, @inputs);
4688 # locate_am (@POSSIBLE_SOURCES)
4689 # -----------------------------
4690 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4691 # This functions returns the first *.in file for which a *.am exists.
4692 # It returns undef otherwise.
4697 foreach my $file (@rest)
4699 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4710 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4711 # ---------------------------------------------------
4712 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4714 sub scan_autoconf_config_files ($$)
4716 my ($where, $config_files) = @_;
4718 # Look at potential Makefile.am's.
4719 foreach (split ' ', $config_files)
4721 # Must skip empty string for Perl 4.
4722 next if $_ eq "\\" || $_ eq '';
4724 # Handle $local:$input syntax.
4725 my ($local, @rest) = split (/:/);
4726 @rest = ("$local.in",) unless @rest;
4727 my $input = locate_am @rest;
4730 # We have a file that automake should generate.
4731 $make_list{$input} = join (':', ($local, @rest));
4735 # We have a file that automake should cause to be
4736 # rebuilt, but shouldn't generate itself.
4737 push (@other_input_files, $_);
4739 $ac_config_files_location{$local} = $where;
4744 # &scan_autoconf_traces ($FILENAME)
4745 # ---------------------------------
4746 sub scan_autoconf_traces ($)
4748 my ($filename) = @_;
4750 # Macros to trace, with their minimal number of arguments.
4752 # IMPORTANT: If you add a macro here, you should also add this macro
4753 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
4755 AC_CANONICAL_BUILD => 0,
4756 AC_CANONICAL_HOST => 0,
4757 AC_CANONICAL_TARGET => 0,
4758 AC_CONFIG_AUX_DIR => 1,
4759 AC_CONFIG_FILES => 1,
4760 AC_CONFIG_HEADERS => 1,
4761 AC_CONFIG_LIBOBJ_DIR => 1,
4762 AC_CONFIG_LINKS => 1,
4765 AC_REQUIRE_AUX_FILE => 1,
4766 AC_SUBST_TRACE => 1,
4767 AM_AUTOMAKE_VERSION => 1,
4768 AM_CONDITIONAL => 2,
4769 AM_ENABLE_MULTILIB => 0,
4770 AM_GNU_GETTEXT => 0,
4771 AM_INIT_AUTOMAKE => 0,
4772 AM_MAINTAINER_MODE => 0,
4773 AM_PROG_CC_C_O => 0,
4774 LT_SUPPORTED_TAG => 1,
4775 _LT_AC_TAGCONFIG => 0,
4781 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4783 # Use a separator unlikely to be used, not `:', the default, which
4784 # has a precise meaning for AC_CONFIG_FILES and so on.
4785 $traces .= join (' ',
4786 map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
4789 my $tracefh = new Automake::XFile ("$traces $filename |");
4790 verb "reading $traces";
4792 while ($_ = $tracefh->getline)
4795 my ($here, @args) = split (/::/);
4796 my $where = new Automake::Location $here;
4797 my $macro = $args[0];
4799 prog_error ("unrequested trace `$macro'")
4800 unless exists $traced{$macro};
4802 # Skip and diagnose malformed calls.
4803 if ($#args < $traced{$macro})
4805 msg ('syntax', $where, "not enough arguments for $macro");
4809 # Alphabetical ordering please.
4810 if ($macro eq 'AC_CANONICAL_BUILD')
4812 if ($seen_canonical <= AC_CANONICAL_BUILD)
4814 $seen_canonical = AC_CANONICAL_BUILD;
4815 $canonical_location = $where;
4818 elsif ($macro eq 'AC_CANONICAL_HOST')
4820 if ($seen_canonical <= AC_CANONICAL_HOST)
4822 $seen_canonical = AC_CANONICAL_HOST;
4823 $canonical_location = $where;
4826 elsif ($macro eq 'AC_CANONICAL_TARGET')
4828 $seen_canonical = AC_CANONICAL_TARGET;
4829 $canonical_location = $where;
4831 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4833 if ($seen_init_automake)
4835 error ($where, "AC_CONFIG_AUX_DIR must be called before "
4836 . "AM_INIT_AUTOMAKE...", partial => 1);
4837 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
4839 $config_aux_dir = $args[1];
4840 $config_aux_dir_set_in_configure_ac = 1;
4841 $relative_dir = '.';
4842 check_directory ($config_aux_dir, $where);
4844 elsif ($macro eq 'AC_CONFIG_FILES')
4846 # Look at potential Makefile.am's.
4847 scan_autoconf_config_files ($where, $args[1]);
4849 elsif ($macro eq 'AC_CONFIG_HEADERS')
4851 foreach my $spec (split (' ', $args[1]))
4853 my ($dest, @src) = split (':', $spec);
4854 $ac_config_files_location{$dest} = $where;
4855 push @config_headers, $spec;
4858 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
4860 $config_libobj_dir = $args[1];
4861 $relative_dir = '.';
4862 check_directory ($config_libobj_dir, $where);
4864 elsif ($macro eq 'AC_CONFIG_LINKS')
4866 foreach my $spec (split (' ', $args[1]))
4868 my ($dest, $src) = split (':', $spec);
4869 $ac_config_files_location{$dest} = $where;
4870 push @config_links, $spec;
4873 elsif ($macro eq 'AC_INIT')
4875 if (defined $args[2])
4877 $package_version = $args[2];
4878 $package_version_location = $where;
4881 elsif ($macro eq 'AC_LIBSOURCE')
4883 $libsources{$args[1]} = $here;
4885 elsif ($macro eq 'AC_SUBST_TRACE')
4887 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
4888 # AC_SUBST(5), then too bad.
4889 $configure_vars{$args[1]} = $where
4890 if $args[1] =~ /^\w+$/;
4892 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
4895 "version mismatch. This is Automake $VERSION,\n" .
4896 "but the definition used by this AM_INIT_AUTOMAKE\n" .
4897 "comes from Automake $args[1]. You should recreate\n" .
4898 "aclocal.m4 with aclocal and run automake again.\n",
4899 # $? = 63 is used to indicate version mismatch to missing.
4901 if $VERSION ne $args[1];
4903 $seen_automake_version = 1;
4905 elsif ($macro eq 'AM_CONDITIONAL')
4907 $configure_cond{$args[1]} = $where;
4909 elsif ($macro eq 'AM_ENABLE_MULTILIB')
4911 $seen_multilib = $where;
4913 elsif ($macro eq 'AM_GNU_GETTEXT')
4915 $seen_gettext = $where;
4916 $ac_gettext_location = $where;
4917 $seen_gettext_external = grep ($_ eq 'external', @args);
4919 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4921 $seen_init_automake = $where;
4922 if (defined $args[2])
4924 $package_version = $args[2];
4925 $package_version_location = $where;
4927 elsif (defined $args[1])
4930 if (process_global_option_list ($where,
4931 split (' ', $args[1])));
4934 elsif ($macro eq 'AM_MAINTAINER_MODE')
4936 $seen_maint_mode = $where;
4938 elsif ($macro eq 'AM_PROG_CC_C_O')
4940 $seen_cc_c_o = $where;
4942 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
4944 # Only remember the first time a file is required.
4945 $required_aux_file{$args[1]} = $where
4946 unless exists $required_aux_file{$args[1]};
4948 elsif ($macro eq 'm4_include'
4949 || $macro eq 'm4_sinclude'
4950 || $macro eq 'sinclude')
4952 # Skip missing `sinclude'd files.
4953 next if $macro ne 'm4_include' && ! -f $args[1];
4955 # Some modified versions of Autoconf don't use
4956 # forzen files. Consequently it's possible that we see all
4957 # m4_include's performed during Autoconf's startup.
4958 # Obviously we don't want to distribute Autoconf's files
4959 # so we skip absolute filenames here.
4960 push @configure_deps, '$(top_srcdir)/' . $args[1]
4961 unless $here =~ m,^(?:\w:)?[\\/],;
4962 # Keep track of the greatest timestamp.
4965 my $mtime = mtime $args[1];
4966 $configure_deps_greatest_timestamp = $mtime
4967 if $mtime > $configure_deps_greatest_timestamp;
4970 elsif ($macro eq 'LT_SUPPORTED_TAG')
4972 $libtool_tags{$args[1]} = 1;
4973 $libtool_new_api = 1;
4975 elsif ($macro eq '_LT_AC_TAGCONFIG')
4977 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
4978 # We use it to detect whether tags are supported. Our
4979 # prefered interface is LT_SUPPORTED_TAG, but it was
4980 # introduced in Libtool 1.6.
4981 if (0 == keys %libtool_tags)
4983 # Hardcode the tags supported by Libtool 1.5.
4984 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
4993 # &scan_autoconf_files ()
4994 # -----------------------
4995 # Check whether we use `configure.ac' or `configure.in'.
4996 # Scan it (and possibly `aclocal.m4') for interesting things.
4997 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
4998 sub scan_autoconf_files ()
5000 # Reinitialize libsources here. This isn't really necessary,
5001 # since we currently assume there is only one configure.ac. But
5002 # that won't always be the case.
5005 # Keep track of the youngest configure dependency.
5006 $configure_deps_greatest_timestamp = mtime $configure_ac;
5007 if (-e 'aclocal.m4')
5009 my $mtime = mtime 'aclocal.m4';
5010 $configure_deps_greatest_timestamp = $mtime
5011 if $mtime > $configure_deps_greatest_timestamp;
5014 scan_autoconf_traces ($configure_ac);
5016 @configure_input_files = sort keys %make_list;
5017 # Set input and output files if not specified by user.
5020 @input_files = @configure_input_files;
5021 %output_files = %make_list;
5025 if (! $seen_init_automake)
5027 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5028 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5029 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5030 . "and that aclocal.m4 was recently regenerated "
5031 . "(using aclocal).");
5035 if (! $seen_automake_version)
5037 if (-f 'aclocal.m4')
5039 error ($seen_init_automake,
5040 "your implementation of AM_INIT_AUTOMAKE comes from " .
5041 "an\nold Automake version. You should recreate " .
5042 "aclocal.m4\nwith aclocal and run automake again.\n",
5043 # $? = 63 is used to indicate version mismatch to missing.
5048 error ($seen_init_automake,
5049 "no proper implementation of AM_INIT_AUTOMAKE was " .
5050 "found,\nprobably because aclocal.m4 is missing...\n" .
5051 "You should run aclocal to create this file, then\n" .
5052 "run automake again.\n");
5059 # Reorder @input_files so that the Makefile that distributes aux
5060 # files is processed last. This is important because each directory
5061 # can require auxiliary scripts and we should wait until they have
5062 # been installed before distributing them.
5064 # The Makefile.in that distribute the aux files is the one in
5065 # $config_aux_dir or the top-level Makefile.
5066 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5067 my @new_input_files = ();
5068 while (@input_files)
5070 my $in = pop @input_files;
5071 my @ins = split (/:/, $output_files{$in});
5072 if (dirname ($ins[0]) eq $auxdirdist)
5074 push @new_input_files, $in;
5075 $automake_will_process_aux_dir = 1;
5079 unshift @new_input_files, $in;
5082 @input_files = @new_input_files;
5084 # If neither the auxdir/Makefile nor the ./Makefile are generated
5085 # by Automake, we won't distribute the aux files anyway. Assume
5086 # the user know what (s)he does, and pretend we will distribute
5087 # them to disable the error in require_file_internal.
5088 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5090 # Look for some files we need. Always check for these. This
5091 # check must be done for every run, even those where we are only
5092 # looking at a subdir Makefile. We must set relative_dir for
5093 # maybe_push_required_file to work.
5094 $relative_dir = '.';
5095 foreach my $file (keys %required_aux_file)
5097 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5099 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5100 if -f $config_aux_dir . '/install.sh';
5102 # Preserve dist_common for later.
5103 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5107 ################################################################
5109 # Set up for Cygnus mode.
5112 my $cygnus = option 'cygnus';
5113 return unless $cygnus;
5115 set_strictness ('foreign');
5116 set_option ('no-installinfo', $cygnus);
5117 set_option ('no-dependencies', $cygnus);
5118 set_option ('no-dist', $cygnus);
5120 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5121 if !$seen_maint_mode;
5124 # Do any extra checking for GNU standards.
5125 sub check_gnu_standards
5127 if ($relative_dir eq '.')
5129 # In top level (or only) directory.
5130 require_file ("$am_file.am", GNU,
5131 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5133 # Accept one of these three licenses; default to COPYING.
5134 # Make sure we do not overwrite an existing license.
5136 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5144 require_file ("$am_file.am", GNU, 'COPYING')
5148 for my $opt ('no-installman', 'no-installinfo')
5150 msg ('error-gnu', option $opt,
5151 "option `$opt' disallowed by GNU standards")
5156 # Do any extra checking for GNITS standards.
5157 sub check_gnits_standards
5159 if ($relative_dir eq '.')
5161 # In top level (or only) directory.
5162 require_file ("$am_file.am", GNITS, 'THANKS');
5166 ################################################################
5168 # Functions to handle files of each language.
5170 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5171 # simple formula: Return value is LANG_SUBDIR if the resulting object
5172 # file should be in a subdir if the source file is, LANG_PROCESS if
5173 # file is to be dealt with, LANG_IGNORE otherwise.
5175 # Much of the actual processing is handled in
5176 # handle_single_transform. These functions exist so that
5177 # auxiliary information can be recorded for a later cleanup pass.
5178 # Note that the calls to these functions are computed, so don't bother
5179 # searching for their precise names in the source.
5181 # This is just a convenience function that can be used to determine
5182 # when a subdir object should be used.
5185 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5188 # Rewrite a single C source file.
5191 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5193 if (option 'ansi2knr' && $base =~ /_$/)
5195 # FIXME: include line number in error.
5196 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5199 my $r = LANG_PROCESS;
5200 if (option 'subdir-objects')
5203 if ($directory && $directory ne '.')
5205 $base = $directory . '/' . $base;
5207 # libtool is always able to put the object at the proper place,
5208 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5209 err_var ($var, "compiling `$base.c' in subdir requires "
5210 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5211 uniq_scope => US_GLOBAL,
5212 uniq_part => 'AM_PROG_CC_C_O subdir')
5213 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5216 # In this case we already have the directory information, so
5217 # don't add it again.
5218 $de_ansi_files{$base} = '';
5222 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5228 && $have_per_exec_flags
5229 && ! option 'subdir-objects'
5230 && $nonansi_obj ne '.lo')
5232 err_var ($var, "compiling `$base.c' with per-target flags requires "
5233 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5234 uniq_scope => US_GLOBAL,
5235 uniq_part => 'AM_PROG_CC_C_O per-target')
5241 # Rewrite a single C++ source file.
5242 sub lang_cxx_rewrite
5244 return &lang_sub_obj;
5247 # Rewrite a single header file.
5248 sub lang_header_rewrite
5250 # Header files are simply ignored.
5254 # Rewrite a single yacc file.
5255 sub lang_yacc_rewrite
5257 my ($directory, $base, $ext) = @_;
5259 my $r = &lang_sub_obj;
5260 (my $newext = $ext) =~ tr/y/c/;
5261 return ($r, $newext);
5264 # Rewrite a single yacc++ file.
5265 sub lang_yaccxx_rewrite
5267 my ($directory, $base, $ext) = @_;
5269 my $r = &lang_sub_obj;
5270 (my $newext = $ext) =~ tr/y/c/;
5271 return ($r, $newext);
5274 # Rewrite a single lex file.
5275 sub lang_lex_rewrite
5277 my ($directory, $base, $ext) = @_;
5279 my $r = &lang_sub_obj;
5280 (my $newext = $ext) =~ tr/l/c/;
5281 return ($r, $newext);
5284 # Rewrite a single lex++ file.
5285 sub lang_lexxx_rewrite
5287 my ($directory, $base, $ext) = @_;
5289 my $r = &lang_sub_obj;
5290 (my $newext = $ext) =~ tr/l/c/;
5291 return ($r, $newext);
5294 # Rewrite a single assembly file.
5295 sub lang_asm_rewrite
5297 return &lang_sub_obj;
5300 # Rewrite a single preprocessed assembly file.
5301 sub lang_cppasm_rewrite
5303 return &lang_sub_obj;
5306 # Rewrite a single Fortran 77 file.
5307 sub lang_f77_rewrite
5309 return LANG_PROCESS;
5312 # Rewrite a single Fortran file.
5315 return LANG_PROCESS;
5318 # Rewrite a single preprocessed Fortran file.
5319 sub lang_ppfc_rewrite
5321 return LANG_PROCESS;
5324 # Rewrite a single preprocessed Fortran 77 file.
5325 sub lang_ppf77_rewrite
5327 return LANG_PROCESS;
5330 # Rewrite a single ratfor file.
5331 sub lang_ratfor_rewrite
5333 return LANG_PROCESS;
5336 # Rewrite a single Objective C file.
5337 sub lang_objc_rewrite
5339 return &lang_sub_obj;
5342 # Rewrite a single Java file.
5343 sub lang_java_rewrite
5348 # The lang_X_finish functions are called after all source file
5349 # processing is done. Each should handle defining rules for the
5350 # language, etc. A finish function is only called if a source file of
5351 # the appropriate type has been seen.
5355 # Push all libobjs files onto de_ansi_files. We actually only
5356 # push files which exist in the current directory, and which are
5357 # genuine source files.
5358 foreach my $file (keys %libsources)
5360 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5362 $de_ansi_files{$1} = ''
5366 if (option 'ansi2knr' && keys %de_ansi_files)
5368 # Make all _.c files depend on their corresponding .c files.
5370 foreach my $base (sort keys %de_ansi_files)
5372 # Each _.c file must depend on ansi2knr; otherwise it
5373 # might be used in a parallel build before it is built.
5374 # We need to support files in the srcdir and in the build
5375 # dir (because these files might be auto-generated. But
5376 # we can't use $< -- some makes only define $< during a
5378 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5379 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5380 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5381 . '`if test -f $(srcdir)/' . $ansfile
5382 . '; then echo $(srcdir)/' . $ansfile
5383 . '; else echo ' . $ansfile . '; fi` '
5384 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5385 . '| $(ANSI2KNR) > $@'
5386 # If ansi2knr fails then we shouldn't
5387 # create the _.c file
5388 . " || rm -f \$\@\n");
5389 push (@objects, $base . '_.$(OBJEXT)');
5390 push (@objects, $base . '_.lo')
5393 # Explicitly clean the _.c files if they are in a
5394 # subdirectory. (In the current directory they get erased
5395 # by a `rm -f *_.c' rule.)
5396 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5397 if dirname ($base) ne '.';
5400 # Make all _.o (and _.lo) files depend on ansi2knr.
5401 # Use a sneaky little hack to make it print nicely.
5402 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5406 # This is a yacc helper which is called whenever we have decided to
5407 # compile a yacc file.
5408 sub lang_yacc_target_hook
5410 my ($self, $aggregate, $output, $input, %transform) = @_;
5412 my $flag = $aggregate . "_YFLAGS";
5413 my $flagvar = var $flag;
5414 my $YFLAGSvar = var 'YFLAGS';
5415 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5416 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5418 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5419 my $header = $output_base . '.h';
5421 # Found a `-d' that applies to the compilation of this file.
5422 # Add a dependency for the generated header file, and arrange
5423 # for that file to be included in the distribution.
5424 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5425 RULE_AUTOMAKE, TRUE,
5428 my $condstr = $cond->subst_string;
5430 "$condstr${header}: $output\n"
5431 # Recover from removal of $header
5432 . "$condstr\t\@if test ! -f \$@; then \\\n"
5433 . "$condstr\t rm -f $output; \\\n"
5434 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
5435 . "$condstr\telse :; fi\n";
5437 # Distribute the generated file, unless its .y source was
5438 # listed in a nodist_ variable. (&handle_source_transform
5439 # will set DIST_SOURCE.)
5440 &push_dist_common ($header)
5441 if $transform{'DIST_SOURCE'};
5443 # If the files are built in the build directory, then we want
5444 # to remove them with `make clean'. If they are in srcdir
5445 # they shouldn't be touched. However, we can't determine this
5446 # statically, and the GNU rules say that yacc/lex output files
5447 # should be removed by maintainer-clean. So that's what we
5449 $clean_files{$header} = MAINTAINER_CLEAN;
5451 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5452 # See the comment above for $HEADER.
5453 $clean_files{$output} = MAINTAINER_CLEAN;
5456 # This is a lex helper which is called whenever we have decided to
5457 # compile a lex file.
5458 sub lang_lex_target_hook
5460 my ($self, $aggregate, $output, $input) = @_;
5461 # If the files are built in the build directory, then we want to
5462 # remove them with `make clean'. If they are in srcdir they
5463 # shouldn't be touched. However, we can't determine this
5464 # statically, and the GNU rules say that yacc/lex output files
5465 # should be removed by maintainer-clean. So that's what we do.
5466 $clean_files{$output} = MAINTAINER_CLEAN;
5469 # This is a helper for both lex and yacc.
5470 sub yacc_lex_finish_helper
5472 return if defined $language_scratch{'lex-yacc-done'};
5473 $language_scratch{'lex-yacc-done'} = 1;
5475 # If there is more than one distinct yacc (resp lex) source file
5476 # in a given directory, then the `ylwrap' program is required to
5477 # allow parallel builds to work correctly. FIXME: for now, no
5479 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5480 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5483 sub lang_yacc_finish
5485 return if defined $language_scratch{'yacc-done'};
5486 $language_scratch{'yacc-done'} = 1;
5488 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5490 &yacc_lex_finish_helper
5491 if count_files_for_language ('yacc') > 1;
5497 return if defined $language_scratch{'lex-done'};
5498 $language_scratch{'lex-done'} = 1;
5500 &yacc_lex_finish_helper
5501 if count_files_for_language ('lex') > 1;
5505 # Given a hash table of linker names, pick the name that has the most
5506 # precedence. This is lame, but something has to have global
5507 # knowledge in order to eliminate the conflict. Add more linkers as
5513 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK))
5515 return $l if defined $linkers{$l};
5520 # Called to indicate that an extension was used.
5524 if (! defined $extension_seen{$ext})
5526 $extension_seen{$ext} = 1;
5530 ++$extension_seen{$ext};
5534 # Return the number of files seen for a given language. Knows about
5535 # special cases we care about. FIXME: this is hideous. We need
5536 # something that involves real language objects. For instance yacc
5537 # and yaccxx could both derive from a common yacc class which would
5538 # know about the strange ylwrap requirement. (Or better yet we could
5539 # just not support legacy yacc!)
5540 sub count_files_for_language
5545 if ($name eq 'yacc' || $name eq 'yaccxx')
5547 @names = ('yacc', 'yaccxx');
5549 elsif ($name eq 'lex' || $name eq 'lexxx')
5551 @names = ('lex', 'lexxx');
5559 foreach $name (@names)
5561 my $lang = $languages{$name};
5562 foreach my $ext (@{$lang->extensions})
5564 $r += $extension_seen{$ext}
5565 if defined $extension_seen{$ext};
5572 # Called to ask whether source files have been seen . If HEADERS is 1,
5573 # headers can be included.
5578 # count all the sources
5580 foreach my $val (values %extension_seen)
5587 $count -= count_files_for_language ('header');
5594 # register_language (%ATTRIBUTE)
5595 # ------------------------------
5596 # Register a single language.
5597 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5598 sub register_language (%)
5604 unless defined $option{'ansi'};
5605 $option{'autodep'} = 'no'
5606 unless defined $option{'autodep'};
5607 $option{'linker'} = ''
5608 unless defined $option{'linker'};
5609 $option{'flags'} = []
5610 unless defined $option{'flags'};
5611 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5612 unless defined $option{'output_extensions'};
5613 $option{'nodist_specific'} = 0
5614 unless defined $option{'nodist_specific'};
5616 my $lang = new Language (%option);
5619 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5620 $languages{$lang->name} = $lang;
5621 my $link = $lang->linker;
5624 if (exists $link_languages{$link})
5626 prog_error ("`$link' has different definitions in "
5627 . $lang->name . " and " . $link_languages{$link}->name)
5628 if $lang->link ne $link_languages{$link}->link;
5632 $link_languages{$link} = $lang;
5636 # Update the pattern of known extensions.
5637 accept_extensions (@{$lang->extensions});
5639 # Upate the $suffix_rule map.
5640 foreach my $suffix (@{$lang->extensions})
5642 foreach my $dest (&{$lang->output_extensions} ($suffix))
5644 register_suffix_rule (INTERNAL, $suffix, $dest);
5649 # derive_suffix ($EXT, $OBJ)
5650 # --------------------------
5651 # This function is used to find a path from a user-specified suffix $EXT
5652 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5653 sub derive_suffix ($$)
5655 my ($source_ext, $obj) = @_;
5657 while (! $extension_map{$source_ext}
5658 && $source_ext ne $obj
5659 && exists $suffix_rules->{$source_ext}
5660 && exists $suffix_rules->{$source_ext}{$obj})
5662 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5669 ################################################################
5671 # Pretty-print something and append to output_rules.
5672 sub pretty_print_rule
5674 $output_rules .= &makefile_wrap (@_);
5678 ################################################################
5681 ## -------------------------------- ##
5682 ## Handling the conditional stack. ##
5683 ## -------------------------------- ##
5687 # make_conditional_string ($NEGATE, $COND)
5688 # ----------------------------------------
5689 sub make_conditional_string ($$)
5691 my ($negate, $cond) = @_;
5692 $cond = "${cond}_TRUE"
5693 unless $cond =~ /^TRUE|FALSE$/;
5694 $cond = Automake::Condition::conditional_negate ($cond)
5701 # cond_stack_if ($NEGATE, $COND, $WHERE)
5702 # --------------------------------------
5703 sub cond_stack_if ($$$)
5705 my ($negate, $cond, $where) = @_;
5707 error $where, "$cond does not appear in AM_CONDITIONAL"
5708 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5710 push (@cond_stack, make_conditional_string ($negate, $cond));
5712 return new Automake::Condition (@cond_stack);
5717 # cond_stack_else ($NEGATE, $COND, $WHERE)
5718 # ----------------------------------------
5719 sub cond_stack_else ($$$)
5721 my ($negate, $cond, $where) = @_;
5725 error $where, "else without if";
5729 $cond_stack[$#cond_stack] =
5730 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5732 # If $COND is given, check against it.
5735 $cond = make_conditional_string ($negate, $cond);
5737 error ($where, "else reminder ($negate$cond) incompatible with "
5738 . "current conditional: $cond_stack[$#cond_stack]")
5739 if $cond_stack[$#cond_stack] ne $cond;
5742 return new Automake::Condition (@cond_stack);
5747 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5748 # -----------------------------------------
5749 sub cond_stack_endif ($$$)
5751 my ($negate, $cond, $where) = @_;
5756 error $where, "endif without if";
5760 # If $COND is given, check against it.
5763 $cond = make_conditional_string ($negate, $cond);
5765 error ($where, "endif reminder ($negate$cond) incompatible with "
5766 . "current conditional: $cond_stack[$#cond_stack]")
5767 if $cond_stack[$#cond_stack] ne $cond;
5772 return new Automake::Condition (@cond_stack);
5779 ## ------------------------ ##
5780 ## Handling the variables. ##
5781 ## ------------------------ ##
5784 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
5785 # -----------------------------------------------------
5786 # Like define_variable, but the value is a list, and the variable may
5787 # be defined conditionally. The second argument is the Condition
5788 # under which the value should be defined; this should be the empty
5789 # string to define the variable unconditionally. The third argument
5790 # is a list holding the values to use for the variable. The value is
5791 # pretty printed in the output file.
5792 sub define_pretty_variable ($$$@)
5794 my ($var, $cond, $where, @value) = @_;
5796 if (! vardef ($var, $cond))
5798 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
5799 '', $where, VAR_PRETTY);
5800 rvar ($var)->rdef ($cond)->set_seen;
5805 # define_variable ($VAR, $VALUE, $WHERE)
5806 # --------------------------------------
5807 # Define a new Automake Makefile variable VAR to VALUE, but only if
5808 # not already defined.
5809 sub define_variable ($$$)
5811 my ($var, $value, $where) = @_;
5812 define_pretty_variable ($var, TRUE, $where, $value);
5816 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
5817 # -----------------------------------------------------------
5818 # Define the $VAR which content is the list of file names composed of
5819 # a @BASENAME and the $EXTENSION.
5820 sub define_files_variable ($\@$$)
5822 my ($var, $basename, $extension, $where) = @_;
5823 define_variable ($var,
5824 join (' ', map { "$_.$extension" } @$basename),
5829 # Like define_variable, but define a variable to be the configure
5830 # substitution by the same name.
5831 sub define_configure_variable ($)
5835 my $pretty = VAR_ASIS;
5836 my $owner = VAR_CONFIGURE;
5838 # Do not output the ANSI2KNR configure variable -- we AC_SUBST
5839 # it in protos.m4, but later redefine it elsewhere. This is
5840 # pretty hacky. We also don't output AMDEPBACKSLASH: it might
5841 # be subst'd by `\', which certainly would not be appreciated by
5843 if ($var eq 'ANSI2KNR' || $var eq 'AMDEPBACKSLASH')
5845 $pretty = VAR_SILENT;
5846 $owner = VAR_AUTOMAKE;
5849 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
5850 '', $configure_vars{$var}, $pretty);
5854 # define_compiler_variable ($LANG)
5855 # --------------------------------
5856 # Define a compiler variable. We also handle defining the `LT'
5857 # version of the command when using libtool.
5858 sub define_compiler_variable ($)
5862 my ($var, $value) = ($lang->compiler, $lang->compile);
5863 my $libtool_tag = '';
5864 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5865 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5866 &define_variable ($var, $value, INTERNAL);
5867 &define_variable ("LT$var",
5868 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5869 . "\$(LIBTOOLFLAGS) --mode=compile $value",
5875 # define_linker_variable ($LANG)
5876 # ------------------------------
5877 # Define linker variables.
5878 sub define_linker_variable ($)
5882 my $libtool_tag = '';
5883 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5884 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5886 &define_variable ($lang->lder, $lang->ld, INTERNAL);
5887 # CCLINK = $(CCLD) blah blah...
5888 &define_variable ($lang->linker,
5890 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5891 . "\$(LIBTOOLFLAGS) --mode=link " : '')
5896 sub define_per_target_linker_variable ($$)
5898 my ($linker, $target) = @_;
5900 # If the user wrote a custom link command, we don't define ours.
5901 return "${target}_LINK"
5902 if set_seen "${target}_LINK";
5904 my $xlink = $linker ? $linker : 'LINK';
5906 my $lang = $link_languages{$xlink};
5907 prog_error "Unknown language for linker variable `$xlink'"
5910 my $link_command = $lang->link;
5913 my $libtool_tag = '';
5914 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5915 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5918 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
5919 . "--mode=link " . $link_command;
5922 # Rewrite each occurrence of `AM_$flag' in the link
5923 # command into `${derived}_$flag' if it exists.
5924 my $orig_command = $link_command;
5925 my @flags = (@{$lang->flags}, 'LDFLAGS');
5926 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
5927 for my $flag (@flags)
5929 my $val = "${target}_$flag";
5930 $link_command =~ s/\(AM_$flag\)/\($val\)/
5934 # If the computed command is the same as the generic command, use
5935 # the command linker variable.
5936 return $lang->linker
5937 if $link_command eq $orig_command;
5939 &define_variable ("${target}_LINK", $link_command, INTERNAL);
5940 return "${target}_LINK";
5943 ################################################################
5945 # &check_trailing_slash ($WHERE, $LINE)
5946 # --------------------------------------
5947 # Return 1 iff $LINE ends with a slash.
5948 # Might modify $LINE.
5949 sub check_trailing_slash ($\$)
5951 my ($where, $line) = @_;
5953 # Ignore `##' lines.
5954 return 0 if $$line =~ /$IGNORE_PATTERN/o;
5956 # Catch and fix a common error.
5957 msg "syntax", $where, "whitespace following trailing backslash"
5958 if $$line =~ s/\\\s+\n$/\\\n/;
5960 return $$line =~ /\\$/;
5964 # &read_am_file ($AMFILE, $WHERE)
5965 # -------------------------------
5966 # Read Makefile.am and set up %contents. Simultaneously copy lines
5967 # from Makefile.am into $output_trailer, or define variables as
5968 # appropriate. NOTE we put rules in the trailer section. We want
5969 # user rules to come after our generated stuff.
5970 sub read_am_file ($$)
5972 my ($amfile, $where) = @_;
5974 my $am_file = new Automake::XFile ("< $amfile");
5975 verb "reading $amfile";
5977 # Keep track of the youngest output dependency.
5978 my $mtime = mtime $amfile;
5979 $output_deps_greatest_timestamp = $mtime
5980 if $mtime > $output_deps_greatest_timestamp;
5986 my $var_look = VAR_ASIS;
5988 use constant IN_VAR_DEF => 0;
5989 use constant IN_RULE_DEF => 1;
5990 use constant IN_COMMENT => 2;
5991 my $prev_state = IN_RULE_DEF;
5993 while ($_ = $am_file->getline)
5995 $where->set ("$amfile:$.");
5996 if (/$IGNORE_PATTERN/o)
5998 # Merely delete comments beginning with two hashes.
6000 elsif (/$WHITE_PATTERN/o)
6002 error $where, "blank line following trailing backslash"
6004 # Stick a single white line before the incoming macro or rule.
6007 # Flush all comments seen so far.
6010 $output_vars .= $comment;
6014 elsif (/$COMMENT_PATTERN/o)
6016 # Stick comments before the incoming macro or rule. Make
6017 # sure a blank line precedes the first block of comments.
6018 $spacing = "\n" unless $blank;
6020 $comment .= $spacing . $_;
6022 $prev_state = IN_COMMENT;
6028 $saw_bk = check_trailing_slash ($where, $_);
6031 # We save the conditional stack on entry, and then check to make
6032 # sure it is the same on exit. This lets us conditionally include
6034 my @saved_cond_stack = @cond_stack;
6035 my $cond = new Automake::Condition (@cond_stack);
6037 my $last_var_name = '';
6038 my $last_var_type = '';
6039 my $last_var_value = '';
6041 # FIXME: shouldn't use $_ in this loop; it is too big.
6044 $where->set ("$amfile:$.");
6046 # Make sure the line is \n-terminated.
6050 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6051 # used by users. @MAINT@ is an anachronism now.
6052 $_ =~ s/\@MAINT\@//g
6053 unless $seen_maint_mode;
6055 my $new_saw_bk = check_trailing_slash ($where, $_);
6057 if (/$IGNORE_PATTERN/o)
6059 # Merely delete comments beginning with two hashes.
6061 # Keep any backslash from the previous line.
6062 $new_saw_bk = $saw_bk;
6064 elsif (/$WHITE_PATTERN/o)
6066 # Stick a single white line before the incoming macro or rule.
6068 error $where, "blank line following trailing backslash"
6071 elsif (/$COMMENT_PATTERN/o)
6073 error $where, "comment following trailing backslash"
6074 if $saw_bk && $comment eq '';
6076 # Stick comments before the incoming macro or rule.
6077 $comment .= $spacing . $_;
6079 $prev_state = IN_COMMENT;
6083 if ($prev_state == IN_RULE_DEF)
6085 my $cond = new Automake::Condition @cond_stack;
6086 $output_trailer .= $cond->subst_string;
6087 $output_trailer .= $_;
6089 elsif ($prev_state == IN_COMMENT)
6091 # If the line doesn't start with a `#', add it.
6092 # We do this because a continued comment like
6096 # is not portable. BSD make doesn't honor
6097 # escaped newlines in comments.
6099 $comment .= $spacing . $_;
6101 else # $prev_state == IN_VAR_DEF
6103 $last_var_value .= ' '
6104 unless $last_var_value =~ /\s$/;
6105 $last_var_value .= $_;
6109 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6110 $last_var_type, $cond,
6111 $last_var_value, $comment,
6112 $last_where, VAR_ASIS)
6114 $comment = $spacing = '';
6119 elsif (/$IF_PATTERN/o)
6121 $cond = cond_stack_if ($1, $2, $where);
6123 elsif (/$ELSE_PATTERN/o)
6125 $cond = cond_stack_else ($1, $2, $where);
6127 elsif (/$ENDIF_PATTERN/o)
6129 $cond = cond_stack_endif ($1, $2, $where);
6132 elsif (/$RULE_PATTERN/o)
6135 $prev_state = IN_RULE_DEF;
6137 # For now we have to output all definitions of user rules
6138 # and can't diagnose duplicates (see the comment in
6139 # Automake::Rule::define). So we go on and ignore the return value.
6140 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6142 check_variable_expansions ($_, $where);
6144 $output_trailer .= $comment . $spacing;
6145 my $cond = new Automake::Condition @cond_stack;
6146 $output_trailer .= $cond->subst_string;
6147 $output_trailer .= $_;
6148 $comment = $spacing = '';
6150 elsif (/$ASSIGNMENT_PATTERN/o)
6152 # Found a macro definition.
6153 $prev_state = IN_VAR_DEF;
6154 $last_var_name = $1;
6155 $last_var_type = $2;
6156 $last_var_value = $3;
6157 $last_where = $where->clone;
6158 if ($3 ne '' && substr ($3, -1) eq "\\")
6160 # We preserve the `\' because otherwise the long lines
6161 # that are generated will be truncated by broken
6163 $last_var_value = $3 . "\n";
6165 # Normally we try to output variable definitions in the
6166 # same format they were input. However, POSIX compliant
6167 # systems are not required to support lines longer than
6168 # 2048 bytes (most notably, some sed implementation are
6169 # limited to 4000 bytes, and sed is used by config.status
6170 # to rewrite Makefile.in into Makefile). Moreover nobody
6171 # would really write such long lines by hand since it is
6172 # hardly maintainable. So if a line is longer that 1000
6173 # bytes (an arbitrary limit), assume it has been
6174 # automatically generated by some tools, and flatten the
6175 # variable definition. Otherwise, keep the variable as it
6177 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6181 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6182 $last_var_type, $cond,
6183 $last_var_value, $comment,
6184 $last_where, $var_look)
6186 $comment = $spacing = '';
6187 $var_look = VAR_ASIS;
6190 elsif (/$INCLUDE_PATTERN/o)
6194 if ($path =~ s/^\$\(top_srcdir\)\///)
6196 push (@include_stack, "\$\(top_srcdir\)/$path");
6197 # Distribute any included file.
6199 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6200 # otherwise OSF make will implicitly copy the included
6201 # file in the build tree during `make distdir' to satisfy
6203 # (subdircond2.test and subdircond3.test will fail.)
6204 push_dist_common ("\$\(top_srcdir\)/$path");
6208 $path =~ s/\$\(srcdir\)\///;
6209 push (@include_stack, "\$\(srcdir\)/$path");
6210 # Always use the $(srcdir) prefix in DIST_COMMON,
6211 # otherwise OSF make will implicitly copy the included
6212 # file in the build tree during `make distdir' to satisfy
6214 # (subdircond2.test and subdircond3.test will fail.)
6215 push_dist_common ("\$\(srcdir\)/$path");
6216 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6218 $where->push_context ("`$path' included from here");
6219 &read_am_file ($path, $where);
6220 $where->pop_context;
6224 # This isn't an error; it is probably a continued rule.
6225 # In fact, this is what we assume.
6226 $prev_state = IN_RULE_DEF;
6227 check_variable_expansions ($_, $where);
6228 $output_trailer .= $comment . $spacing;
6229 my $cond = new Automake::Condition @cond_stack;
6230 $output_trailer .= $cond->subst_string;
6231 $output_trailer .= $_;
6232 $comment = $spacing = '';
6233 error $where, "`#' comment at start of rule is unportable"
6234 if $_ =~ /^\t\s*\#/;
6237 $saw_bk = $new_saw_bk;
6238 $_ = $am_file->getline;
6241 $output_trailer .= $comment;
6243 error ($where, "trailing backslash on last line")
6246 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6247 : "too many conditionals closed in include file"))
6248 if "@saved_cond_stack" ne "@cond_stack";
6252 # define_standard_variables ()
6253 # ----------------------------
6254 # A helper for read_main_am_file which initializes configure variables
6255 # and variables from header-vars.am.
6256 sub define_standard_variables
6258 my $saved_output_vars = $output_vars;
6259 my ($comments, undef, $rules) =
6260 file_contents_internal (1, "$libdir/am/header-vars.am",
6261 new Automake::Location);
6263 foreach my $var (sort keys %configure_vars)
6265 &define_configure_variable ($var);
6268 $output_vars .= $comments . $rules;
6271 # Read main am file.
6272 sub read_main_am_file
6276 # This supports the strange variable tricks we are about to play.
6277 prog_error (macros_dump () . "variable defined before read_main_am_file")
6278 if (scalar (variables) > 0);
6280 # Generate copyright header for generated Makefile.in.
6281 # We do discard the output of predefined variables, handled below.
6282 $output_vars = ("# $in_file_name generated by automake "
6283 . $VERSION . " from $am_file_name.\n");
6284 $output_vars .= '# ' . subst ('configure_input') . "\n";
6285 $output_vars .= $gen_copyright;
6287 # We want to predefine as many variables as possible. This lets
6288 # the user set them with `+=' in Makefile.am.
6289 &define_standard_variables;
6291 # Read user file, which might override some of our values.
6292 &read_am_file ($amfile, new Automake::Location);
6297 ################################################################
6300 # &flatten ($STRING)
6301 # ------------------
6302 # Flatten the $STRING and return the result.
6315 # transform($TOKEN, \%PAIRS)
6316 # ==========================
6317 # If ($TOKEN, $VAL) is in %PAIRS:
6318 # - replaces %$TOKEN% with $VAL,
6319 # - enables/disables ?$TOKEN? and ?!$TOKEN?,
6320 # - replaces %?$TOKEN% with TRUE or FALSE.
6323 my ($token, $transform) = @_;
6325 if (substr ($token, 0, 1) eq '%')
6327 my $cond = (substr ($token, 1, 1) eq '?') ? 1 : 0;
6328 $token = substr ($token, 1 + $cond, -1);
6329 my $val = $transform->{$token};
6330 prog_error "Unknown %token% `$token'" unless defined $val;
6333 return $val ? 'TRUE' : 'FALSE';
6340 # Now $token is '?xxx?' or '?!xxx?'.
6341 my $neg = (substr ($token, 1, 1) eq '!') ? 1 : 0;
6342 $token = substr ($token, 1 + $neg, -1);
6343 my $val = $transform->{$token};
6344 prog_error "Unknown ?token? `$token' (neg = $neg)" unless defined $val;
6345 return (!!$val == $neg) ? '##%' : '';
6349 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6350 # ------------------------------------------
6351 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6353 sub make_paragraphs ($%)
6355 my ($file, %transform) = @_;
6357 # Complete %transform with global options.
6358 # Note that %transform goes last, so it overrides global options.
6359 %transform = ('CYGNUS' => !! option 'cygnus',
6361 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6363 'BZIP2' => !! option 'dist-bzip2',
6364 'COMPRESS' => !! option 'dist-tarZ',
6365 'GZIP' => ! option 'no-dist-gzip',
6366 'SHAR' => !! option 'dist-shar',
6367 'ZIP' => !! option 'dist-zip',
6369 'INSTALL-INFO' => ! option 'no-installinfo',
6370 'INSTALL-MAN' => ! option 'no-installman',
6371 'CK-NEWS' => !! option 'check-news',
6373 'SUBDIRS' => !! var ('SUBDIRS'),
6374 'TOPDIR_P' => $relative_dir eq '.',
6376 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6377 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6378 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6380 'LIBTOOL' => !! var ('LIBTOOL'),
6382 'FIRST' => ! $transformed_files{$file},
6385 $transformed_files{$file} = 1;
6386 $_ = $am_file_cache{$file};
6390 verb "reading $file";
6391 # Swallow the whole file.
6392 my $fc_file = new Automake::XFile "< $file";
6393 my $saved_dollar_slash = $/;
6395 $_ = $fc_file->getline;
6396 $/ = $saved_dollar_slash;
6399 # Remove ##-comments.
6400 # Besides we don't need more than two consecutive new-lines.
6401 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6403 $am_file_cache{$file} = $_;
6406 # Substitute Automake template tokens.
6407 s/(?:%\??[\w\-]+%|\?!?[\w\-]+\?)/transform($&, \%transform)/ge;
6408 # transform() may have added some ##%-comments to strip.
6409 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
6410 # ####### and do not remove the latter.)
6411 s/^[ \t]*(?:##%)+.*\n//gm;
6413 # Split at unescaped new lines.
6414 my @lines = split (/(?<!\\)\n/, $_);
6417 while (defined ($_ = shift @lines))
6420 # If we are a rule, eat as long as we start with a tab.
6421 if (/$RULE_PATTERN/smo)
6423 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6425 $paragraph .= "\n$_";
6427 unshift (@lines, $_);
6430 # If we are a comments, eat as much comments as you can.
6431 elsif (/$COMMENT_PATTERN/smo)
6433 while (defined ($_ = shift @lines)
6434 && $_ =~ /$COMMENT_PATTERN/smo)
6436 $paragraph .= "\n$_";
6438 unshift (@lines, $_);
6441 push @res, $paragraph;
6449 # ($COMMENT, $VARIABLES, $RULES)
6450 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6451 # -------------------------------------------------------------
6452 # Return contents of a file from $libdir/am, automatically skipping
6453 # macros or rules which are already known. $IS_AM iff the caller is
6454 # reading an Automake file (as opposed to the user's Makefile.am).
6455 sub file_contents_internal ($$$%)
6457 my ($is_am, $file, $where, %transform) = @_;
6459 $where->set ($file);
6461 my $result_vars = '';
6462 my $result_rules = '';
6466 # The following flags are used to track rules spanning across
6467 # multiple paragraphs.
6468 my $is_rule = 0; # 1 if we are processing a rule.
6469 my $discard_rule = 0; # 1 if the current rule should not be output.
6471 # We save the conditional stack on entry, and then check to make
6472 # sure it is the same on exit. This lets us conditionally include
6474 my @saved_cond_stack = @cond_stack;
6475 my $cond = new Automake::Condition (@cond_stack);
6477 foreach (make_paragraphs ($file, %transform))
6479 # FIXME: no line number available.
6480 $where->set ($file);
6483 error $where, "blank line following trailing backslash:\n$_"
6485 error $where, "comment following trailing backslash:\n$_"
6491 # Stick empty line before the incoming macro or rule.
6494 elsif (/$COMMENT_PATTERN/mso)
6497 # Stick comments before the incoming macro or rule.
6501 # Handle inclusion of other files.
6502 elsif (/$INCLUDE_PATTERN/o)
6506 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6507 $where->push_context ("`$file' included from here");
6509 my ($com, $vars, $rules)
6510 = file_contents_internal ($is_am, $file, $where, %transform);
6511 $where->pop_context;
6513 $result_vars .= $vars;
6514 $result_rules .= $rules;
6518 # Handling the conditionals.
6519 elsif (/$IF_PATTERN/o)
6521 $cond = cond_stack_if ($1, $2, $file);
6523 elsif (/$ELSE_PATTERN/o)
6525 $cond = cond_stack_else ($1, $2, $file);
6527 elsif (/$ENDIF_PATTERN/o)
6529 $cond = cond_stack_endif ($1, $2, $file);
6533 elsif (/$RULE_PATTERN/mso)
6537 # Separate relationship from optional actions: the first
6538 # `new-line tab" not preceded by backslash (continuation
6541 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6542 my ($relationship, $actions) = ($1, $2 || '');
6544 # Separate targets from dependencies: the first colon.
6545 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6546 my ($targets, $dependencies) = ($1, $2);
6547 # Remove the escaped new lines.
6548 # I don't know why, but I have to use a tmp $flat_deps.
6549 my $flat_deps = &flatten ($dependencies);
6550 my @deps = split (' ', $flat_deps);
6552 foreach (split (' ' , $targets))
6554 # FIXME: 1. We are not robust to people defining several targets
6555 # at once, only some of them being in %dependencies. The
6556 # actions from the targets in %dependencies are usually generated
6557 # from the content of %actions, but if some targets in $targets
6558 # are not in %dependencies the ELSE branch will output
6559 # a rule for all $targets (i.e. the targets which are both
6560 # in %dependencies and $targets will have two rules).
6562 # FIXME: 2. The logic here is not able to output a
6563 # multi-paragraph rule several time (e.g. for each condition
6564 # it is defined for) because it only knows the first paragraph.
6566 # FIXME: 3. We are not robust to people defining a subset
6567 # of a previously defined "multiple-target" rule. E.g.
6568 # `foo:' after `foo bar:'.
6570 # Output only if not in FALSE.
6571 if (defined $dependencies{$_} && $cond != FALSE)
6573 &depend ($_, @deps);
6576 $actions{$_} .= "\n$actions" if $actions;
6580 $actions{$_} = $actions;
6585 # Free-lance dependency. Output the rule for all the
6586 # targets instead of one by one.
6587 my @undefined_conds =
6588 Automake::Rule::define ($targets, $file,
6589 $is_am ? RULE_AUTOMAKE : RULE_USER,
6591 for my $undefined_cond (@undefined_conds)
6593 my $condparagraph = $paragraph;
6594 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6595 $result_rules .= "$spacing$comment$condparagraph\n";
6597 if (scalar @undefined_conds == 0)
6599 # Remember to discard next paragraphs
6600 # if they belong to this rule.
6601 # (but see also FIXME: #2 above.)
6604 $comment = $spacing = '';
6610 elsif (/$ASSIGNMENT_PATTERN/mso)
6612 my ($var, $type, $val) = ($1, $2, $3);
6613 error $where, "variable `$var' with trailing backslash"
6618 Automake::Variable::define ($var,
6619 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6620 $type, $cond, $val, $comment, $where,
6624 $comment = $spacing = '';
6628 # This isn't an error; it is probably some tokens which
6629 # configure is supposed to replace, such as `@SET-MAKE@',
6630 # or some part of a rule cut by an if/endif.
6631 if (! $cond->false && ! ($is_rule && $discard_rule))
6633 s/^/$cond->subst_string/gme;
6634 $result_rules .= "$spacing$comment$_\n";
6636 $comment = $spacing = '';
6640 error ($where, @cond_stack ?
6641 "unterminated conditionals: @cond_stack" :
6642 "too many conditionals closed in include file")
6643 if "@saved_cond_stack" ne "@cond_stack";
6645 return ($comment, $result_vars, $result_rules);
6650 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6651 # ------------------------------------------------
6652 # Return contents of a file from $libdir/am, automatically skipping
6653 # macros or rules which are already known.
6654 sub file_contents ($$%)
6656 my ($basename, $where, %transform) = @_;
6657 my ($comments, $variables, $rules) =
6658 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6660 return "$comments$variables$rules";
6664 # &append_exeext ($MACRO)
6665 # -----------------------
6666 # Macro is an Automake magic macro which primary is PROGRAMS, e.g.
6667 # bin_PROGRAMS. Make sure these programs have $(EXEEXT) appended.
6668 sub append_exeext ($)
6672 prog_error "append_exeext ($macro)"
6673 unless $macro =~ /_PROGRAMS$/;
6675 transform_variable_recursively
6676 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
6678 my ($subvar, $val, $cond, $full_cond) = @_;
6679 # Append $(EXEEXT) unless the user did it already, or it's a
6681 $val .= '$(EXEEXT)' unless $val =~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/;
6688 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6689 # -----------------------------------------------------
6690 # Find all variable prefixes that are used for install directories. A
6691 # prefix `zar' qualifies iff:
6693 # * `zardir' is a variable.
6694 # * `zar_PRIMARY' is a variable.
6696 # As a side effect, it looks for misspellings. It is an error to have
6697 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6698 # "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
6699 # of the same name (with "dir" appended) exists. For instance, if the
6700 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6701 # This is to provide a little extra flexibility in those cases which
6703 sub am_primary_prefixes ($$@)
6705 my ($primary, $can_dist, @prefixes) = @_;
6708 my %valid = map { $_ => 0 } @prefixes;
6709 $valid{'EXTRA'} = 0;
6710 foreach my $var (variables $primary)
6712 # Automake is allowed to define variables that look like primaries
6713 # but which aren't. E.g. INSTALL_sh_DATA.
6714 # Autoconf can also define variables like INSTALL_DATA, so
6715 # ignore all configure variables (at least those which are not
6716 # redefined in Makefile.am).
6717 # FIXME: We should make sure that these variables are not
6718 # conditionally defined (or else adjust the condition below).
6719 my $def = $var->def (TRUE);
6720 next if $def && $def->owner != VAR_MAKEFILE;
6722 my $varname = $var->name;
6724 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
6726 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6727 if ($dist ne '' && ! $can_dist)
6730 "invalid variable `$varname': `dist' is forbidden");
6732 # Standard directories must be explicitly allowed.
6733 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6736 "`${X}dir' is not a legitimate directory " .
6739 # A not explicitly valid directory is allowed if Xdir is defined.
6740 elsif (! defined $valid{$X} &&
6741 $var->requires_variables ("`$varname' is used", "${X}dir"))
6743 # Nothing to do. Any error message has been output
6744 # by $var->requires_variables.
6748 # Ensure all extended prefixes are actually used.
6749 $valid{"$base$dist$X"} = 1;
6754 prog_error "unexpected variable name: $varname";
6758 # Return only those which are actually defined.
6759 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6763 # Handle `where_HOW' variable magic. Does all lookups, generates
6764 # install code, and possibly generates code to define the primary
6765 # variable. The first argument is the name of the .am file to munge,
6766 # the second argument is the primary variable (e.g. HEADERS), and all
6767 # subsequent arguments are possible installation locations.
6769 # Returns list of [$location, $value] pairs, where
6770 # $value's are the values in all where_HOW variable, and $location
6771 # there associated location (the place here their parent variables were
6774 # FIXME: this should be rewritten to be cleaner. It should be broken
6775 # up into multiple functions.
6777 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6784 my $default_dist = 0;
6787 if ($args[0] eq '-noextra')
6791 elsif ($args[0] eq '-candist')
6795 elsif ($args[0] eq '-defaultdist')
6800 elsif ($args[0] !~ /^-/)
6807 my ($file, $primary, @prefix) = @args;
6809 # Now that configure substitutions are allowed in where_HOW
6810 # variables, it is an error to actually define the primary. We
6811 # allow `JAVA', as it is customarily used to mean the Java
6812 # interpreter. This is but one of several Java hacks. Similarly,
6813 # `PYTHON' is customarily used to mean the Python interpreter.
6814 reject_var $primary, "`$primary' is an anachronism"
6815 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
6817 # Get the prefixes which are valid and actually used.
6818 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
6820 # If a primary includes a configure substitution, then the EXTRA_
6821 # form is required. Otherwise we can't properly do our job.
6827 foreach my $X (@prefix)
6829 my $nodir_name = $X;
6830 my $one_name = $X . '_' . $primary;
6831 my $one_var = var $one_name;
6833 my $strip_subdir = 1;
6834 # If subdir prefix should be preserved, do so.
6835 if ($nodir_name =~ /^nobase_/)
6838 $nodir_name =~ s/^nobase_//;
6841 # If files should be distributed, do so.
6845 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
6846 || (! $default_dist && $nodir_name =~ /^dist_/));
6847 $nodir_name =~ s/^(dist|nodist)_//;
6851 # Use the location of the currently processed variable.
6852 # We are not processing a particular condition, so pick the first
6854 my $tmpcond = $one_var->conditions->one_cond;
6855 my $where = $one_var->rdef ($tmpcond)->location->clone;
6857 # Append actual contents of where_PRIMARY variable to
6858 # @result, skipping @substitutions@.
6859 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
6861 my ($loc, $value) = @$locvals;
6862 # Skip configure substitutions.
6863 if ($value =~ /^\@.*\@$/)
6865 if ($nodir_name eq 'EXTRA')
6868 "`$one_name' contains configure substitution, "
6871 # Check here to make sure variables defined in
6872 # configure.ac do not imply that EXTRA_PRIMARY
6874 elsif (! defined $configure_vars{$one_name})
6876 $require_extra = $one_name
6882 push (@result, $locvals);
6885 # A blatant hack: we rewrite each _PROGRAMS primary to include
6887 append_exeext ($one_name)
6888 if $primary eq 'PROGRAMS';
6889 # "EXTRA" shouldn't be used when generating clean targets,
6890 # all, or install targets. We used to warn if EXTRA_FOO was
6891 # defined uselessly, but this was annoying.
6893 if $nodir_name eq 'EXTRA';
6895 if ($nodir_name eq 'check')
6897 push (@check, '$(' . $one_name . ')');
6901 push (@used, '$(' . $one_name . ')');
6904 # Is this to be installed?
6905 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
6907 # If so, with install-exec? (or install-data?).
6908 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
6910 my $check_options_p = $install_p && !! option 'std-options';
6912 # Use the location of the currently processed variable as context.
6913 $where->push_context ("while processing `$one_name'");
6915 # The variable containing all file to distribute.
6916 my $distvar = "\$($one_name)";
6917 $distvar = shadow_unconditionally ($one_name, $where)
6918 if ($dist_p && $one_var->has_conditional_contents);
6920 # Singular form of $PRIMARY.
6921 (my $one_primary = $primary) =~ s/S$//;
6922 $output_rules .= &file_contents ($file, $where,
6923 PRIMARY => $primary,
6924 ONE_PRIMARY => $one_primary,
6926 NDIR => $nodir_name,
6927 BASE => $strip_subdir,
6930 INSTALL => $install_p,
6932 DISTVAR => $distvar,
6933 'CK-OPTS' => $check_options_p);
6936 # The JAVA variable is used as the name of the Java interpreter.
6937 # The PYTHON variable is used as the name of the Python interpreter.
6938 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
6941 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
6942 $output_vars .= "\n";
6945 err_var ($require_extra,
6946 "`$require_extra' contains configure substitution,\n"
6947 . "but `EXTRA_$primary' not defined")
6948 if ($require_extra && ! var ('EXTRA_' . $primary));
6950 # Push here because PRIMARY might be configure time determined.
6951 push (@all, '$(' . $primary . ')')
6952 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
6954 # Make the result unique. This lets the user use conditionals in
6955 # a natural way, but still lets us program lazily -- we don't have
6956 # to worry about handling a particular object more than once.
6957 # We will keep only one location per object.
6959 for my $pair (@result)
6961 my ($loc, $val) = @$pair;
6962 $result{$val} = $loc;
6964 my @l = sort keys %result;
6965 return map { [$result{$_}->clone, $_] } @l;
6969 ################################################################
6971 # Each key in this hash is the name of a directory holding a
6972 # Makefile.in. These variables are local to `is_make_dir'.
6974 my $make_dirs_set = 0;
6979 if (! $make_dirs_set)
6981 foreach my $iter (@configure_input_files)
6983 $make_dirs{dirname ($iter)} = 1;
6985 # We also want to notice Makefile.in's.
6986 foreach my $iter (@other_input_files)
6988 if ($iter =~ /Makefile\.in$/)
6990 $make_dirs{dirname ($iter)} = 1;
6995 return defined $make_dirs{$dir};
6998 ################################################################
7000 # Find the aux dir. This should match the algorithm used by
7001 # ./configure. (See the Autoconf documentation for for
7002 # AC_CONFIG_AUX_DIR.)
7003 sub locate_aux_dir ()
7005 if (! $config_aux_dir_set_in_configure_ac)
7007 # The default auxiliary directory is the first
7008 # of ., .., or ../.. that contains install-sh.
7009 # Assume . if install-sh doesn't exist yet.
7010 for my $dir (qw (. .. ../..))
7012 if (-f "$dir/install-sh")
7014 $config_aux_dir = $dir;
7018 $config_aux_dir = '.' unless $config_aux_dir;
7020 # Avoid unsightly '/.'s.
7021 $am_config_aux_dir =
7022 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7023 $am_config_aux_dir =~ s,/*$,,;
7027 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7028 # --------------------------------------------------
7029 # See if we want to push this file onto dist_common. This function
7030 # encodes the rules for deciding when to do so.
7031 sub maybe_push_required_file
7033 my ($dir, $file, $fullfile) = @_;
7035 if ($dir eq $relative_dir)
7037 push_dist_common ($file);
7040 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7042 # If we are doing the topmost directory, and the file is in a
7043 # subdir which does not have a Makefile, then we distribute it
7046 # If a required file is above the source tree, it is important
7047 # to prefix it with `$(srcdir)' so that no VPATH search is
7048 # performed. Otherwise problems occur with Make implementations
7049 # that rewrite and simplify rules whose dependencies are found in a
7050 # VPATH location. Here is an example with OSF1/Tru64 Make.
7062 # Dependency `../a' was found in `sub/../a', but this make
7063 # implementation simplified it as `a'. (Note that the sub/
7064 # directory does not even exist.)
7066 # This kind of VPATH rewriting seems hard to cancel. The
7067 # distdir.am hack against VPATH rewriting works only when no
7068 # simplification is done, i.e., for dependencies which are in
7069 # subdirectories, not in enclosing directories. Hence, in
7070 # the latter case we use a full path to make sure no VPATH
7072 $fullfile = '$(srcdir)/' . $fullfile
7073 if $dir =~ m,^\.\.(?:$|/),;
7075 push_dist_common ($fullfile);
7082 # If a file name appears as a key in this hash, then it has already
7083 # been checked for. This allows us not to report the same error more
7085 my %required_file_not_found = ();
7087 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7088 # --------------------------------------------------------------
7089 # Verify that the file must exist in $DIRECTORY, or install it.
7090 # $MYSTRICT is the strictness level at which this file becomes required.
7091 sub require_file_internal ($$$@)
7093 my ($where, $mystrict, $dir, @files) = @_;
7095 foreach my $file (@files)
7097 my $fullfile = "$dir/$file";
7099 my $dangling_sym = 0;
7101 if (-l $fullfile && ! -f $fullfile)
7105 elsif (dir_has_case_matching_file ($dir, $file))
7108 maybe_push_required_file ($dir, $file, $fullfile);
7111 # `--force-missing' only has an effect if `--add-missing' is
7113 if ($found_it && (! $add_missing || ! $force_missing))
7119 # If we've already looked for it, we're done. You might
7120 # wonder why we don't do this before searching for the
7121 # file. If we do that, then something like
7122 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7126 next if defined $required_file_not_found{$fullfile};
7127 $required_file_not_found{$fullfile} = 1;
7130 if ($strictness >= $mystrict)
7132 if ($dangling_sym && $add_missing)
7140 # Only install missing files according to our desired
7142 my $message = "required file `$fullfile' not found";
7145 if (-f "$libdir/$file")
7149 # Install the missing file. Symlink if we
7150 # can, copy if we must. Note: delete the file
7151 # first, in case it is a dangling symlink.
7152 $message = "installing `$fullfile'";
7153 # Windows Perl will hang if we try to delete a
7154 # file that doesn't exist.
7155 unlink ($fullfile) if -f $fullfile;
7156 if ($symlink_exists && ! $copy_missing)
7158 if (! symlink ("$libdir/$file", $fullfile))
7161 $trailer = "; error while making link: $!";
7164 elsif (system ('cp', "$libdir/$file", $fullfile))
7167 $trailer = "\n error while copying";
7169 reset_dir_cache ($dir);
7172 if (! maybe_push_required_file (dirname ($fullfile),
7175 if (! $found_it && ! $automake_will_process_aux_dir)
7177 # We have added the file but could not push it
7178 # into DIST_COMMON, probably because this is
7179 # an auxiliary file and we are not processing
7180 # the top level Makefile. Furthermore Automake
7181 # hasn't been asked to create the Makefile.in
7182 # that distribute the aux dir files.
7183 error ($where, 'Please make a full run of automake'
7184 . " so $fullfile gets distributed.");
7190 $trailer = "\n `automake --add-missing' can install `$file'"
7191 if -f "$libdir/$file";
7194 # If --force-missing was specified, and we have
7195 # actually found the file, then do nothing.
7197 if $found_it && $force_missing;
7199 # If we couldn' install the file, but it is a target in
7200 # the Makefile, don't print anything. This allows files
7201 # like README, AUTHORS, or THANKS to be generated.
7203 if !$suppress && rule $file;
7205 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
7211 # &require_file ($WHERE, $MYSTRICT, @FILES)
7212 # -----------------------------------------
7213 sub require_file ($$@)
7215 my ($where, $mystrict, @files) = @_;
7216 require_file_internal ($where, $mystrict, $relative_dir, @files);
7219 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7220 # -----------------------------------------------------------
7221 sub require_file_with_macro ($$$@)
7223 my ($cond, $macro, $mystrict, @files) = @_;
7224 $macro = rvar ($macro) unless ref $macro;
7225 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7228 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7229 # ----------------------------------------------------------------
7230 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7231 # must be in that directory. Otherwise expect it in the current directory.
7232 sub require_libsource_with_macro ($$$@)
7234 my ($cond, $macro, $mystrict, @files) = @_;
7235 $macro = rvar ($macro) unless ref $macro;
7236 if ($config_libobj_dir)
7238 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7239 $config_libobj_dir, @files);
7243 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7247 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7248 # ----------------------------------------------
7249 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7250 sub require_conf_file ($$@)
7252 my ($where, $mystrict, @files) = @_;
7253 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7257 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7258 # ----------------------------------------------------------------
7259 sub require_conf_file_with_macro ($$$@)
7261 my ($cond, $macro, $mystrict, @files) = @_;
7262 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7266 ################################################################
7268 # &require_build_directory ($DIRECTORY)
7269 # ------------------------------------
7270 # Emit rules to create $DIRECTORY if needed, and return
7271 # the file that any target requiring this directory should be made
7273 # We don't want to emit the rule twice, and want to reuse it
7274 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7275 sub require_build_directory ($)
7277 my $directory = shift;
7279 return $directory_map{$directory} if exists $directory_map{$directory};
7281 my $cdir = File::Spec->canonpath ($directory);
7283 if (exists $directory_map{$cdir})
7285 my $stamp = $directory_map{$cdir};
7286 $directory_map{$directory} = $stamp;
7290 my $dirstamp = "$cdir/\$(am__dirstamp)";
7292 $directory_map{$directory} = $dirstamp;
7293 $directory_map{$cdir} = $dirstamp;
7295 # Set a variable for the dirstamp basename.
7296 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7297 '$(am__leading_dot)dirstamp');
7299 # Directory must be removed by `make distclean'.
7300 $clean_files{$dirstamp} = DIST_CLEAN;
7302 $output_rules .= ("$dirstamp:\n"
7303 . "\t\@\$(mkdir_p) $directory\n"
7304 . "\t\@: > $dirstamp\n");
7309 # &require_build_directory_maybe ($FILE)
7310 # --------------------------------------
7311 # If $FILE lies in a subdirectory, emit a rule to create this
7312 # directory and return the file that $FILE should be made
7313 # dependent upon. Otherwise, just return the empty string.
7314 sub require_build_directory_maybe ($)
7317 my $directory = dirname ($file);
7319 if ($directory ne '.')
7321 return require_build_directory ($directory);
7329 ################################################################
7331 # Push a list of files onto dist_common.
7332 sub push_dist_common
7334 prog_error "push_dist_common run after handle_dist"
7335 if $handle_dist_run;
7336 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7337 '', INTERNAL, VAR_PRETTY);
7341 ################################################################
7343 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7344 # ----------------------------------------------
7345 # Generate a Makefile.in given the name of the corresponding Makefile and
7346 # the name of the file output by config.status.
7347 sub generate_makefile ($$)
7349 my ($makefile_am, $makefile_in) = @_;
7351 # Reset all the Makefile.am related variables.
7352 initialize_per_input;
7354 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7355 # warnings for this file. So hold any warning issued before
7356 # we have processed AUTOMAKE_OPTIONS.
7357 buffer_messages ('warning');
7359 # Name of input file ("Makefile.am") and output file
7360 # ("Makefile.in"). These have no directory components.
7361 $am_file_name = basename ($makefile_am);
7362 $in_file_name = basename ($makefile_in);
7364 # $OUTPUT is encoded. If it contains a ":" then the first element
7365 # is the real output file, and all remaining elements are input
7366 # files. We don't scan or otherwise deal with these input files,
7367 # other than to mark them as dependencies. See
7368 # &scan_autoconf_files for details.
7369 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7371 $relative_dir = dirname ($makefile);
7372 $am_relative_dir = dirname ($makefile_am);
7374 read_main_am_file ($makefile_am);
7377 # Process buffered warnings.
7379 # Fatal error. Just return, so we can continue with next file.
7382 # Process buffered warnings.
7385 # There are a few install-related variables that you should not define.
7386 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7391 my $def = $v->def (TRUE);
7392 prog_error "$var not defined in condition TRUE"
7394 reject_var $var, "`$var' should not be defined"
7395 if $def->owner != VAR_AUTOMAKE;
7399 # Catch some obsolete variables.
7400 msg_var ('obsolete', 'INCLUDES',
7401 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
7402 if var ('INCLUDES');
7404 # Must do this after reading .am file.
7405 define_variable ('subdir', $relative_dir, INTERNAL);
7407 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7408 # recursive rules are enabled.
7409 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7410 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7412 # Check first, because we might modify some state.
7414 check_gnu_standards;
7415 check_gnits_standards;
7417 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7424 # These must be run after all the sources are scanned. They
7425 # use variables defined by &handle_libraries, &handle_ltlibraries,
7426 # or &handle_programs.
7431 # Variables used by distdir.am and tags.am.
7432 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7433 if (! option 'no-dist')
7435 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7448 handle_minor_options;
7451 # This must come after most other rules.
7455 do_check_merge_target;
7456 handle_all ($makefile);
7459 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7461 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7465 handle_clean ($makefile);
7466 handle_factored_dependencies;
7468 # Comes last, because all the above procedures may have
7469 # defined or overridden variables.
7470 $output_vars .= output_variables;
7474 my ($out_file) = $output_directory . '/' . $makefile_in;
7476 if ($exit_code != 0)
7478 verb "not writing $out_file because of earlier errors";
7482 if (! -d ($output_directory . '/' . $am_relative_dir))
7484 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
7487 # We make sure that `all:' is the first target.
7489 "$output_vars$output_all$output_header$output_rules$output_trailer";
7491 # Decide whether we must update the output file or not.
7492 # We have to update in the following situations.
7493 # * $force_generation is set.
7494 # * any of the output dependencies is younger than the output
7495 # * the contents of the output is different (this can happen
7496 # if the project has been populated with a file listed in
7497 # @common_files since the last run).
7498 # Output's dependencies are split in two sets:
7499 # * dependencies which are also configure dependencies
7500 # These do not change between each Makefile.am
7501 # * other dependencies, specific to the Makefile.am being processed
7502 # (such as the Makefile.am itself, or any Makefile fragment
7504 my $timestamp = mtime $out_file;
7505 if (! $force_generation
7506 && $configure_deps_greatest_timestamp < $timestamp
7507 && $output_deps_greatest_timestamp < $timestamp
7508 && $output eq contents ($out_file))
7510 verb "$out_file unchanged";
7511 # No need to update.
7518 or fatal "cannot remove $out_file: $!\n";
7521 my $gm_file = new Automake::XFile "> $out_file";
7522 verb "creating $out_file";
7523 print $gm_file $output;
7526 ################################################################
7531 ################################################################
7533 # Print usage information.
7536 print "Usage: $0 [OPTION] ... [Makefile]...
7538 Generate Makefile.in for configure from Makefile.am.
7541 --help print this help, then exit
7542 --version print version number, then exit
7543 -v, --verbose verbosely list files processed
7544 --no-force only update Makefile.in's that are out of date
7545 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
7547 Dependency tracking:
7548 -i, --ignore-deps disable dependency tracking code
7549 --include-deps enable dependency tracking code
7552 --cygnus assume program is part of Cygnus-style tree
7553 --foreign set strictness to foreign
7554 --gnits set strictness to gnits
7555 --gnu set strictness to gnu
7558 -a, --add-missing add missing standard files to package
7559 --libdir=DIR directory storing library files
7560 -c, --copy with -a, copy missing files (default is symlink)
7561 -f, --force-missing force update of standard files
7564 Automake::ChannelDefs::usage;
7568 foreach my $iter (sort ((@common_files, @common_sometimes)))
7570 push (@lcomm, $iter) unless $iter eq $last;
7575 print "\nFiles which are automatically distributed, if found:\n";
7576 format USAGE_FORMAT =
7577 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7578 $four[0], $four[1], $four[2], $four[3]
7580 $~ = "USAGE_FORMAT";
7583 my $rows = int(@lcomm / $cols);
7584 my $rest = @lcomm % $cols;
7595 for (my $y = 0; $y < $rows; $y++)
7597 @four = ("", "", "", "");
7598 for (my $x = 0; $x < $cols; $x++)
7600 last if $y + 1 == $rows && $x == $rest;
7602 my $idx = (($x > $rest)
7603 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
7607 $four[$x] = $lcomm[$idx];
7612 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
7614 # --help always returns 0 per GNU standards.
7621 # Print version information
7625 automake (GNU $PACKAGE) $VERSION
7626 Written by Tom Tromey <tromey\@redhat.com>
7627 and Alexandre Duret-Lutz <adl\@gnu.org>.
7629 Copyright 2005 Free Software Foundation, Inc.
7630 This is free software; see the source for copying conditions. There is NO
7631 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7633 # --version always returns 0 per GNU standards.
7637 ################################################################
7639 # Parse command line.
7640 sub parse_arguments ()
7643 set_strictness ('gnu');
7645 my $cli_where = new Automake::Location;
7648 'libdir=s' => \$libdir,
7649 'gnu' => sub { set_strictness ('gnu'); },
7650 'gnits' => sub { set_strictness ('gnits'); },
7651 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
7652 'foreign' => sub { set_strictness ('foreign'); },
7653 'include-deps' => sub { unset_global_option ('no-dependencies'); },
7654 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
7656 'no-force' => sub { $force_generation = 0; },
7657 'f|force-missing' => \$force_missing,
7658 'o|output-dir=s' => \$output_directory,
7659 'a|add-missing' => \$add_missing,
7660 'c|copy' => \$copy_missing,
7661 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
7662 'W|warnings=s' => \&parse_warnings,
7663 # These long options (--Werror and --Wno-error) for backward
7664 # compatibility. Use -Werror and -Wno-error today.
7665 'Werror' => sub { parse_warnings 'W', 'error'; },
7666 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
7669 Getopt::Long::config ("bundling", "pass_through");
7671 # See if --version or --help is used. We want to process these before
7672 # anything else because the GNU Coding Standards require us to
7673 # `exit 0' after processing these options, and we can't guarantee this
7674 # if we treat other options first. (Handling other options first
7675 # could produce error diagnostics, and in this condition it is
7676 # confusing if Automake does `exit 0'.)
7677 my %cli_options_1st_pass =
7679 'version' => \&version,
7681 # Recognize all other options (and their arguments) but do nothing.
7682 map { $_ => sub {} } (keys %cli_options)
7684 my @ARGV_backup = @ARGV;
7685 Getopt::Long::GetOptions %cli_options_1st_pass
7687 @ARGV = @ARGV_backup;
7689 # Now *really* process the options. This time we know that --help
7690 # and --version are not present, but we specify them nonetheless so
7691 # that ambiguous abbreviation are diagnosed.
7692 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
7695 if (defined $output_directory)
7697 msg 'obsolete', "`--output-dir' is deprecated\n";
7701 # In the next release we'll remove this entirely.
7702 $output_directory = '.';
7705 return unless @ARGV;
7707 if ($ARGV[0] =~ /^-./)
7710 for my $k (keys %cli_options)
7712 if ($k =~ /(.*)=s$/)
7714 map { $argopts{(length ($_) == 1)
7715 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
7718 if ($ARGV[0] eq '--')
7722 elsif (exists $argopts{$ARGV[0]})
7724 fatal ("option `$ARGV[0]' requires an argument\n"
7725 . "Try `$0 --help' for more information.");
7729 fatal ("unrecognized option `$ARGV[0]'.\n"
7730 . "Try `$0 --help' for more information.");
7735 foreach my $arg (@ARGV)
7737 fatal ("empty argument\nTry `$0 --help' for more information.")
7740 # Handle $local:$input syntax.
7741 my ($local, @rest) = split (/:/, $arg);
7742 @rest = ("$local.in",) unless @rest;
7743 my $input = locate_am @rest;
7746 push @input_files, $input;
7747 $output_files{$input} = join (':', ($local, @rest));
7751 error "no Automake input file found for `$arg'";
7755 fatal "no input file found among supplied arguments"
7756 if $errspec && ! @input_files;
7759 ################################################################
7761 # Parse the WARNINGS environment variable.
7764 # Parse command line.
7767 $configure_ac = require_configure_ac;
7769 # Do configure.ac scan only once.
7770 scan_autoconf_files;
7775 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
7776 if -f 'Makefile.am';
7777 fatal ("no `Makefile.am' found for any configure output$msg");
7780 # Now do all the work on each file.
7781 foreach my $file (@input_files)
7783 ($am_file = $file) =~ s/\.in$//;
7784 if (! -f ($am_file . '.am'))
7786 error "`$am_file.am' does not exist";
7790 # Any warning setting now local to this Makefile.am.
7793 generate_makefile ($am_file . '.am', $file);
7795 # Back out any warning setting.
7803 ### Setup "GNU" style for perl-mode and cperl-mode.
7805 ## perl-indent-level: 2
7806 ## perl-continued-statement-offset: 2
7807 ## perl-continued-brace-offset: 0
7808 ## perl-brace-offset: 0
7809 ## perl-brace-imaginary-offset: 0
7810 ## perl-label-offset: -2
7811 ## cperl-indent-level: 2
7812 ## cperl-brace-offset: 0
7813 ## cperl-continued-brace-offset: 0
7814 ## cperl-label-offset: -2
7815 ## cperl-extra-newline-before-brace: t
7816 ## cperl-merge-trailing-else: nil
7817 ## cperl-continued-statement-offset: 2