5 eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
8 # automake - create Makefile.in from Makefile.am
9 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
10 # 2003, 2004, 2005, 2006 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 # Relative path to the top directory.
469 # Greatest timestamp of the output's dependencies (excluding
470 # configure's dependencies).
471 my $output_deps_greatest_timestamp;
473 # These two variables are used when generating each Makefile.in.
474 # They hold the Makefile.in until it is ready to be printed.
481 # This is the conditional stack, updated on if/else/endif, and
482 # used to build Condition objects.
485 # This holds the set of included files.
488 # This holds a list of directories which we must create at `dist'
489 # time. This is used in some strange scenarios involving weird
490 # AC_OUTPUT commands.
493 # List of dependencies for the obvious targets.
498 # Keys in this hash table are files to delete. The associated
499 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
502 # Keys in this hash table are object files or other files in
503 # subdirectories which need to be removed. This only holds files
504 # which are created by compilations. The value in the hash indicates
505 # when the file should be removed.
506 my %compile_clean_files;
508 # Keys in this hash table are directories where we expect to build a
509 # libtool object. We use this information to decide what directories
511 my %libtool_clean_directories;
513 # Value of `$(SOURCES)', used by tags.am.
515 # Sources which go in the distribution.
518 # This hash maps object file names onto their corresponding source
519 # file names. This is used to ensure that each object is created
520 # by a single source file.
523 # This hash maps object file names onto an integer value representing
524 # whether this object has been built via ordinary compilation or
525 # libtool compilation (the COMPILE_* constants).
526 my %object_compilation_map;
529 # This keeps track of the directories for which we've already
530 # created dirstamp code. Keys are directories, values are stamp files.
531 # Several keys can share the same stamp files if they are equivalent
532 # (as are `.//foo' and `foo').
538 # This is a list of all targets to run during "make dist".
541 # Keys in this hash are the basenames of files which must depend on
542 # ansi2knr. Values are either the empty string, or the directory in
543 # which the ANSI source file appears; the directory must have a
547 # This is the name of the redirect `all' target to use.
550 # This keeps track of which extensions we've seen (that we care
554 # This is random scratch space for the language finish functions.
555 # Don't randomly overwrite it; examine other uses of keys first.
556 my %language_scratch;
558 # We keep track of which objects need special (per-executable)
559 # handling on a per-language basis.
560 my %lang_specific_files;
562 # This is set when `handle_dist' has finished. Once this happens,
563 # we should no longer push on dist_common.
566 # Used to store a set of linkers needed to generate the sources currently
567 # under consideration.
570 # True if we need `LINK' defined. This is a hack.
573 # Was get_object_extension run?
574 # FIXME: This is a hack. a better switch should be found.
575 my $get_object_extension_was_run;
577 # Record each file processed by make_paragraphs.
578 my %transformed_files;
580 # Cache each file processed by make_paragraphs.
581 # (This is different from %transformed_files because
582 # %transformed_files is reset for each file while %am_file_cache
583 # it global to the run.)
586 ################################################################
588 # var_SUFFIXES_trigger ($TYPE, $VALUE)
589 # ------------------------------------
590 # This is called by Automake::Variable::define() when SUFFIXES
591 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
592 # The work here needs to be performed as a side-effect of the
593 # macro_define() call because SUFFIXES definitions impact
594 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
596 sub var_SUFFIXES_trigger ($$)
598 my ($type, $value) = @_;
599 accept_extensions (split (' ', $value));
601 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
603 ################################################################
605 ## --------------------------------- ##
606 ## Forward subroutine declarations. ##
607 ## --------------------------------- ##
608 sub register_language (%);
609 sub file_contents_internal ($$$%);
610 sub define_files_variable ($\@$$);
613 # &initialize_per_input ()
614 # ------------------------
615 # (Re)-Initialize per-Makefile.am variables.
616 sub initialize_per_input ()
618 reset_local_duplicates ();
621 $am_relative_dir = '';
626 $output_deps_greatest_timestamp = 0;
630 $output_trailer = '';
634 Automake::Options::reset;
635 Automake::Variable::reset;
636 Automake::Rule::reset;
654 %object_compilation_map = ();
666 %extension_seen = ();
668 %language_scratch = ();
670 %lang_specific_files = ();
672 $handle_dist_run = 0;
676 $get_object_extension_was_run = 0;
678 %compile_clean_files = ();
680 # We always include `.'. This isn't strictly correct.
681 %libtool_clean_directories = ('.' => 1);
683 %transformed_files = ();
687 ################################################################
689 # Initialize our list of languages that are internally supported.
692 register_language ('name' => 'c',
694 'config_vars' => ['CC'],
697 'flags' => ['CFLAGS', 'CPPFLAGS'],
698 'compiler' => 'COMPILE',
699 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
703 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
704 'compile_flag' => '-c',
705 'libtool_tag' => 'CC',
706 'extensions' => ['.c'],
707 '_finish' => \&lang_c_finish);
710 register_language ('name' => 'cxx',
712 'config_vars' => ['CXX'],
713 'linker' => 'CXXLINK',
714 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
716 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
717 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
718 'compiler' => 'CXXCOMPILE',
719 'compile_flag' => '-c',
720 'output_flag' => '-o',
721 'libtool_tag' => 'CXX',
725 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
728 register_language ('name' => 'objc',
729 'Name' => 'Objective C',
730 'config_vars' => ['OBJC'],
731 'linker' => 'OBJCLINK',,
732 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
734 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
735 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
736 'compiler' => 'OBJCCOMPILE',
737 'compile_flag' => '-c',
738 'output_flag' => '-o',
742 'extensions' => ['.m']);
745 register_language ('name' => 'header',
747 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
750 'output_extensions' => sub { return () },
752 '_finish' => sub { });
755 register_language ('name' => 'yacc',
757 'config_vars' => ['YACC'],
758 'flags' => ['YFLAGS'],
759 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
760 'compiler' => 'YACCCOMPILE',
761 'extensions' => ['.y'],
762 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
764 'rule_file' => 'yacc',
765 '_finish' => \&lang_yacc_finish,
766 '_target_hook' => \&lang_yacc_target_hook,
767 'nodist_specific' => 1);
768 register_language ('name' => 'yaccxx',
769 'Name' => 'Yacc (C++)',
770 'config_vars' => ['YACC'],
771 'rule_file' => 'yacc',
772 'flags' => ['YFLAGS'],
773 'compiler' => 'YACCCOMPILE',
774 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
775 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
776 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
778 '_finish' => \&lang_yacc_finish,
779 '_target_hook' => \&lang_yacc_target_hook,
780 'nodist_specific' => 1);
783 register_language ('name' => 'lex',
785 'config_vars' => ['LEX'],
786 'rule_file' => 'lex',
787 'flags' => ['LFLAGS'],
788 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
789 'compiler' => 'LEXCOMPILE',
790 'extensions' => ['.l'],
791 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
793 '_finish' => \&lang_lex_finish,
794 '_target_hook' => \&lang_lex_target_hook,
795 'nodist_specific' => 1);
796 register_language ('name' => 'lexxx',
797 'Name' => 'Lex (C++)',
798 'config_vars' => ['LEX'],
799 'rule_file' => 'lex',
800 'flags' => ['LFLAGS'],
801 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
802 'compiler' => 'LEXCOMPILE',
803 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
804 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
806 '_finish' => \&lang_lex_finish,
807 '_target_hook' => \&lang_lex_target_hook,
808 'nodist_specific' => 1);
811 register_language ('name' => 'asm',
812 'Name' => 'Assembler',
813 'config_vars' => ['CCAS', 'CCASFLAGS'],
815 'flags' => ['CCASFLAGS'],
816 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
817 # or anything else required. They can also set CCAS.
818 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
819 'compiler' => 'CCASCOMPILE',
820 'compile_flag' => '-c',
821 'extensions' => ['.s'],
823 # With assembly we still use the C linker.
824 '_finish' => \&lang_c_finish);
826 # Preprocessed Assembler.
827 register_language ('name' => 'cppasm',
828 'Name' => 'Preprocessed Assembler',
829 'config_vars' => ['CCAS', 'CCASFLAGS'],
832 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
833 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
834 # or anything else required beyond AM_CPPFLAGS. They
836 'compile' => '$(CCAS) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
837 'compiler' => 'CPPASCOMPILE',
838 'compile_flag' => '-c',
839 'extensions' => ['.S'],
841 # With assembly we still use the C linker.
842 '_finish' => \&lang_c_finish);
845 register_language ('name' => 'f77',
846 'Name' => 'Fortran 77',
847 'linker' => 'F77LINK',
848 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
849 'flags' => ['FFLAGS'],
850 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
851 'compiler' => 'F77COMPILE',
852 'compile_flag' => '-c',
853 'output_flag' => '-o',
854 'libtool_tag' => 'F77',
858 'extensions' => ['.f', '.for']);
861 register_language ('name' => 'fc',
863 'linker' => 'FCLINK',
864 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
865 'flags' => ['FCFLAGS'],
866 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
867 'compiler' => 'FCCOMPILE',
868 'compile_flag' => '-c',
869 'output_flag' => '-o',
873 'extensions' => ['.f90', '.f95']);
875 # Preprocessed Fortran
876 register_language ('name' => 'ppfc',
877 'Name' => 'Preprocessed Fortran',
878 'config_vars' => ['FC'],
879 'linker' => 'FCLINK',
880 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
883 'flags' => ['FCFLAGS', 'CPPFLAGS'],
884 'compiler' => 'PPFCCOMPILE',
885 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
886 'compile_flag' => '-c',
887 'output_flag' => '-o',
888 'libtool_tag' => 'FC',
890 'extensions' => ['.F90','.F95']);
892 # Preprocessed Fortran 77
894 # The current support for preprocessing Fortran 77 just involves
895 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
896 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
897 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
898 # for `make' Version 3.76 Beta' (specifically, from info file
899 # `(make)Catalogue of Rules').
901 # A better approach would be to write an Autoconf test
902 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
903 # Fortran 77 compilers know how to do preprocessing. The Autoconf
904 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
905 # preprocessing capabilities, and then fall back on cpp (if cpp were
907 register_language ('name' => 'ppf77',
908 'Name' => 'Preprocessed Fortran 77',
909 'config_vars' => ['F77'],
910 'linker' => 'F77LINK',
911 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
914 'flags' => ['FFLAGS', 'CPPFLAGS'],
915 'compiler' => 'PPF77COMPILE',
916 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
917 'compile_flag' => '-c',
918 'output_flag' => '-o',
919 'libtool_tag' => 'F77',
921 'extensions' => ['.F']);
924 register_language ('name' => 'ratfor',
926 'config_vars' => ['F77'],
927 'linker' => 'F77LINK',
928 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
931 'flags' => ['RFLAGS', 'FFLAGS'],
933 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
934 'compiler' => 'RCOMPILE',
935 'compile_flag' => '-c',
936 'output_flag' => '-o',
937 'libtool_tag' => 'F77',
939 'extensions' => ['.r']);
942 register_language ('name' => 'java',
944 'config_vars' => ['GCJ'],
945 'linker' => 'GCJLINK',
946 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
948 'flags' => ['GCJFLAGS'],
949 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
950 'compiler' => 'GCJCOMPILE',
951 'compile_flag' => '-c',
952 'output_flag' => '-o',
953 'libtool_tag' => 'GCJ',
957 'extensions' => ['.java', '.class', '.zip', '.jar']);
959 ################################################################
961 # Error reporting functions.
963 # err_am ($MESSAGE, [%OPTIONS])
964 # -----------------------------
965 # Uncategorized errors about the current Makefile.am.
968 msg_am ('error', @_);
971 # err_ac ($MESSAGE, [%OPTIONS])
972 # -----------------------------
973 # Uncategorized errors about configure.ac.
976 msg_ac ('error', @_);
979 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
980 # ---------------------------------------
981 # Messages about about the current Makefile.am.
984 my ($channel, $msg, %opts) = @_;
985 msg $channel, "${am_file}.am", $msg, %opts;
988 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
989 # ---------------------------------------
990 # Messages about about configure.ac.
993 my ($channel, $msg, %opts) = @_;
994 msg $channel, $configure_ac, $msg, %opts;
997 ################################################################
1001 # Return a configure-style substitution using the indicated text.
1002 # We do this to avoid having the substitutions directly in automake.in;
1003 # when we do that they are sometimes removed and this causes confusion
1008 return '@' . $text . '@';
1011 ################################################################
1015 # &backname ($REL-DIR)
1016 # --------------------
1017 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1018 # For instance `src/foo' => `../..'.
1019 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1024 foreach (split (/\//, $file))
1026 next if $_ eq '.' || $_ eq '';
1036 return join ('/', @res) || '.';
1039 ################################################################
1042 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1045 my $var = var ('AUTOMAKE_OPTIONS');
1048 # FIXME: We should disallow conditional definitions of AUTOMAKE_OPTIONS.
1049 if (process_option_list ($var->rdef (TRUE)->location,
1050 $var->value_as_list_recursive (cond_filter =>
1057 if ($strictness == GNITS)
1059 set_option ('readme-alpha', INTERNAL);
1060 set_option ('std-options', INTERNAL);
1061 set_option ('check-news', INTERNAL);
1067 # shadow_unconditionally ($varname, $where)
1068 # -----------------------------------------
1069 # Return a $(variable) that contains all possible values
1070 # $varname can take.
1071 # If the VAR wasn't defined conditionally, return $(VAR).
1072 # Otherwise we create a am__VAR_DIST variable which contains
1073 # all possible values, and return $(am__VAR_DIST).
1074 sub shadow_unconditionally ($$)
1076 my ($varname, $where) = @_;
1077 my $var = var $varname;
1078 if ($var->has_conditional_contents)
1080 $varname = "am__${varname}_DIST";
1081 my @files = uniq ($var->value_as_list_recursive);
1082 define_pretty_variable ($varname, TRUE, $where, @files);
1084 return "\$($varname)"
1087 # get_object_extension ($EXTENSION)
1088 # ---------------------------------
1089 # Prefix $EXTENSION with $U if ansi2knr is in use.
1090 sub get_object_extension ($)
1092 my ($extension) = @_;
1094 # Check for automatic de-ANSI-fication.
1095 $extension = '$U' . $extension
1096 if option 'ansi2knr';
1098 $get_object_extension_was_run = 1;
1103 # check_user_variables (@LIST)
1104 # ----------------------------
1105 # Make sure each variable VAR in @LIST do not exist, suggest using AM_VAR
1107 sub check_user_variables (@)
1109 my @dont_override = @_;
1110 foreach my $flag (@dont_override)
1112 my $var = var $flag;
1115 for my $cond ($var->conditions->conds)
1117 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1119 msg_cond_var ('gnu', $cond, $flag,
1120 "`$flag' is a user variable, "
1121 . "you should not override it;\n"
1122 . "use `AM_$flag' instead.");
1129 # Call finish function for each language that was used.
1130 sub handle_languages
1132 if (! option 'no-dependencies')
1134 # Include auto-dep code. Don't include it if DEP_FILES would
1136 if (&saw_sources_p (0) && keys %dep_files)
1138 # Set location of depcomp.
1139 &define_variable ('depcomp',
1140 "\$(SHELL) $am_config_aux_dir/depcomp",
1142 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1144 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1146 my @deplist = sort keys %dep_files;
1147 # Generate each `include' individually. Irix 6 make will
1148 # not properly include several files resulting from a
1149 # variable expansion; generating many separate includes
1151 $output_rules .= "\n";
1152 foreach my $iter (@deplist)
1154 $output_rules .= (subst ('AMDEP_TRUE')
1155 . subst ('am__include')
1157 . subst ('am__quote')
1159 . subst ('am__quote')
1163 # Compute the set of directories to remove in distclean-depend.
1164 my @depdirs = uniq (map { dirname ($_) } @deplist);
1165 $output_rules .= &file_contents ('depend',
1166 new Automake::Location,
1167 DEPDIRS => "@depdirs");
1172 &define_variable ('depcomp', '', INTERNAL);
1173 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1178 # Is the c linker needed?
1180 foreach my $ext (sort keys %extension_seen)
1182 next unless $extension_map{$ext};
1184 my $lang = $languages{$extension_map{$ext}};
1186 my $rule_file = $lang->rule_file || 'depend2';
1188 # Get information on $LANG.
1189 my $pfx = $lang->autodep;
1190 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1192 my ($AMDEP, $FASTDEP) =
1193 (option 'no-dependencies' || $lang->autodep eq 'no')
1194 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1196 my %transform = ('EXT' => $ext,
1200 'FASTDEP' => $FASTDEP,
1201 '-c' => $lang->compile_flag || '',
1203 => (count_files_for_language ($lang->name) > 1),
1204 # These are not used, but they need to be defined
1205 # so &transform do not complain.
1207 'DERIVED-EXT' => 'BUG',
1211 # Generate the appropriate rules for this extension.
1212 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1213 || defined $lang->compile)
1215 # Some C compilers don't support -c -o. Use it only if really
1217 my $output_flag = $lang->output_flag || '';
1220 && $lang->name eq 'c'
1221 && option 'subdir-objects');
1223 # Compute a possible derived extension.
1224 # This is not used by depend2.am.
1225 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1227 # When we output an inference rule like `.c.o:' we
1228 # have two cases to consider: either subdir-objects
1229 # is used, or it is not.
1231 # In the latter case the rule is used to build objects
1232 # in the current directory, and dependencies always
1233 # go into `./$(DEPDIR)/'. We can hard-code this value.
1235 # In the former case the rule can be used to build
1236 # objects in sub-directories too. Dependencies should
1237 # go into the appropriate sub-directories, e.g.,
1238 # `sub/$(DEPDIR)/'. The value of this directory
1239 # need the be computed on-the-fly.
1241 # DEPBASE holds the name of this directory, plus the
1242 # basename part of the object file (extensions Po, TPo,
1243 # Plo, TPlo will be added later as appropriate). It is
1244 # either hardcoded, or a shell variable (`$depbase') that
1245 # will be computed by the rule.
1247 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1249 file_contents ($rule_file,
1250 new Automake::Location,
1254 'DERIVED-EXT' => $der_ext,
1256 DEPBASE => $depbase,
1263 COMPILE => '$(' . $lang->compiler . ')',
1264 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1266 SUBDIROBJ => !! option 'subdir-objects');
1269 # Now include code for each specially handled object with this
1271 my %seen_files = ();
1272 foreach my $file (@{$lang_specific_files{$lang->name}})
1274 my ($derived, $source, $obj, $myext, %file_transform) = @$file;
1276 # We might see a given object twice, for instance if it is
1277 # used under different conditions.
1278 next if defined $seen_files{$obj};
1279 $seen_files{$obj} = 1;
1281 prog_error ("found " . $lang->name .
1282 " in handle_languages, but compiler not defined")
1283 unless defined $lang->compile;
1285 my $obj_compile = $lang->compile;
1287 # Rewrite each occurrence of `AM_$flag' in the compile
1288 # rule into `${derived}_$flag' if it exists.
1289 for my $flag (@{$lang->flags})
1291 my $val = "${derived}_$flag";
1292 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1296 my $libtool_tag = '';
1297 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1299 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1302 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1303 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1306 "\$(LIBTOOL) $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1307 . "--mode=compile $obj_compile";
1309 # We _need_ `-o' for per object rules.
1310 my $output_flag = $lang->output_flag || '-o';
1312 my $depbase = dirname ($obj);
1316 unless $depbase eq '';
1317 $depbase .= '$(DEPDIR)/' . basename ($obj);
1319 # Support for deansified files in subdirectories is ugly
1320 # enough to deserve an explanation.
1322 # A Note about normal ansi2knr processing first. On
1324 # AUTOMAKE_OPTIONS = ansi2knr
1325 # bin_PROGRAMS = foo
1326 # foo_SOURCES = foo.c
1328 # we generate rules similar to:
1330 # foo: foo$U.o; link ...
1331 # foo$U.o: foo$U.c; compile ...
1332 # foo_.c: foo.c; ansi2knr ...
1334 # this is fairly compact, and will call ansi2knr depending
1335 # on the value of $U (`' or `_').
1337 # It's harder with subdir sources. On
1339 # AUTOMAKE_OPTIONS = ansi2knr
1340 # bin_PROGRAMS = foo
1341 # foo_SOURCES = sub/foo.c
1343 # we have to create foo_.c in the current directory.
1344 # (Unless the user asks 'subdir-objects'.) This is important
1345 # in case the same file (`foo.c') is compiled from other
1346 # directories with different cpp options: foo_.c would
1347 # be preprocessed for only one set of options if it were
1348 # put in the subdirectory.
1350 # Because foo$U.o must be built from either foo_.c or
1351 # sub/foo.c we can't be as concise as in the first example.
1354 # foo: foo$U.o; link ...
1355 # foo_.o: foo_.c; compile ...
1356 # foo.o: sub/foo.c; compile ...
1357 # foo_.c: foo.c; ansi2knr ...
1359 # This is why we'll now transform $rule_file twice
1360 # if we detect this case.
1361 # A first time we output the compile rule with `$U'
1362 # replaced by `_' and the source directory removed,
1363 # and another time we simply remove `$U'.
1365 # Note that at this point $source (as computed by
1366 # &handle_single_transform) is `sub/foo$U.c'.
1367 # This can be confusing: it can be used as-is when
1368 # subdir-objects is set, otherwise you have to know
1369 # it really means `foo_.c' or `sub/foo.c'.
1370 my $objdir = dirname ($obj);
1371 my $srcdir = dirname ($source);
1372 if ($lang->ansi && $obj =~ /\$U/)
1374 prog_error "`$obj' contains \$U, but `$source' doesn't."
1375 if $source !~ /\$U/;
1377 (my $source_ = $source) =~ s/\$U/_/g;
1378 # Output an additional rule if _.c and .c are not in
1379 # the same directory. (_.c is always in $objdir.)
1380 if ($objdir ne $srcdir)
1382 (my $obj_ = $obj) =~ s/\$U/_/g;
1383 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1384 $source_ = basename ($source_);
1387 file_contents ($rule_file,
1388 new Automake::Location,
1392 DEPBASE => $depbase_,
1395 OBJ => "$obj_$myext",
1396 OBJOBJ => "$obj_.obj",
1397 LTOBJ => "$obj_.lo",
1399 COMPILE => $obj_compile,
1400 LTCOMPILE => $obj_ltcompile,
1404 $depbase =~ s/\$U//g;
1405 $source =~ s/\$U//g;
1410 file_contents ($rule_file,
1411 new Automake::Location,
1415 DEPBASE => $depbase,
1418 # Use $myext and not `.o' here, in case
1419 # we are actually building a new source
1420 # file -- e.g. via yacc.
1421 OBJ => "$obj$myext",
1422 OBJOBJ => "$obj.obj",
1425 COMPILE => $obj_compile,
1426 LTCOMPILE => $obj_ltcompile,
1431 # The rest of the loop is done once per language.
1432 next if defined $done{$lang};
1435 # Load the language dependent Makefile chunks.
1436 my %lang = map { uc ($_) => 0 } keys %languages;
1437 $lang{uc ($lang->name)} = 1;
1438 $output_rules .= file_contents ('lang-compile',
1439 new Automake::Location,
1442 # If the source to a program consists entirely of code from a
1443 # `pure' language, for instance C++ or Fortran 77, then we
1444 # don't need the C compiler code. However if we run into
1445 # something unusual then we do generate the C code. There are
1446 # probably corner cases here that do not work properly.
1447 # People linking Java code to Fortran code deserve pain.
1448 $needs_c ||= ! $lang->pure;
1450 define_compiler_variable ($lang)
1451 if ($lang->compile);
1453 define_linker_variable ($lang)
1456 require_variables ("$am_file.am", $lang->Name . " source seen",
1457 TRUE, @{$lang->config_vars});
1459 # Call the finisher.
1462 # Flags listed in `->flags' are user variables (per GNU Standards),
1463 # they should not be overridden in the Makefile...
1464 my @dont_override = @{$lang->flags};
1465 # ... and so is LDFLAGS.
1466 push @dont_override, 'LDFLAGS' if $lang->link;
1468 check_user_variables @dont_override;
1471 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1472 # suffix rule was learned), don't bother with the C stuff. But if
1473 # anything else creeps in, then use it.
1475 if $need_link || suffix_rules_count > 1;
1479 &define_compiler_variable ($languages{'c'})
1480 unless defined $done{$languages{'c'}};
1481 define_linker_variable ($languages{'c'});
1485 # Check to make sure a source defined in LIBOBJS is not explicitly
1486 # mentioned. This is a separate function (as opposed to being inlined
1487 # in handle_source_transform) because it isn't always appropriate to
1489 sub check_libobjs_sources
1491 my ($one_file, $unxformed) = @_;
1493 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1494 'dist_EXTRA_', 'nodist_EXTRA_')
1497 my $varname = $prefix . $one_file . '_SOURCES';
1498 my $var = var ($varname);
1501 @files = $var->value_as_list_recursive;
1503 elsif ($prefix eq '')
1505 @files = ($unxformed . '.c');
1512 foreach my $file (@files)
1514 err_var ($prefix . $one_file . '_SOURCES',
1515 "automatically discovered file `$file' should not" .
1516 " be explicitly mentioned")
1517 if defined $libsources{$file};
1524 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1525 # -----------------------------------------------------------------------------
1526 # Does much of the actual work for handle_source_transform.
1528 # $VAR is the name of the variable that the source filenames come from
1529 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1530 # $DERIVED is the name of resulting executable or library
1531 # $OBJ is the object extension (e.g., `$U.lo')
1532 # $FILE the source file to transform
1533 # %TRANSFORM contains extras arguments to pass to file_contents
1534 # when producing explicit rules
1535 # Result is a list of the names of objects
1536 # %linkers_used will be updated with any linkers needed
1537 sub handle_single_transform ($$$$$%)
1539 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1540 my @files = ($_file);
1542 my $nonansi_obj = $obj;
1543 $nonansi_obj =~ s/\$U//g;
1545 # Turn sources into objects. We use a while loop like this
1546 # because we might add to @files in the loop.
1547 while (scalar @files > 0)
1551 # Configure substitutions in _SOURCES variables are errors.
1554 my $parent_msg = '';
1555 $parent_msg = "\nand is referred to from `$topparent'"
1556 if $topparent ne $var->name;
1558 "`" . $var->name . "' includes configure substitution `$_'"
1559 . $parent_msg . ";\nconfigure " .
1560 "substitutions are not allowed in _SOURCES variables");
1564 # If the source file is in a subdirectory then the `.o' is put
1565 # into the current directory, unless the subdir-objects option
1568 # Split file name into base and extension.
1569 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1571 my $directory = $1 || '';
1575 # We must generate a rule for the object if it requires its own flags.
1577 my ($linker, $object);
1579 # This records whether we've seen a derived source file (e.g.
1581 my $derived_source = 0;
1583 # This holds the `aggregate context' of the file we are
1584 # currently examining. If the file is compiled with
1585 # per-object flags, then it will be the name of the object.
1586 # Otherwise it will be `AM'. This is used by the target hook
1587 # language function.
1588 my $aggregate = 'AM';
1590 $extension = &derive_suffix ($extension, $nonansi_obj);
1592 if ($extension_map{$extension} &&
1593 ($lang = $languages{$extension_map{$extension}}))
1595 # Found the language, so see what it says.
1596 &saw_extension ($extension);
1598 # Do we have per-executable flags for this executable?
1599 my $have_per_exec_flags = 0;
1600 my @peflags = @{$lang->flags};
1601 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1602 foreach my $flag (@peflags)
1604 if (set_seen ("${derived}_$flag"))
1606 $have_per_exec_flags = 1;
1611 # Note: computed subr call. The language rewrite function
1612 # should return one of the LANG_* constants. It could
1613 # also return a list whose first value is such a constant
1614 # and whose second value is a new source extension which
1615 # should be applied. This means this particular language
1616 # generates another source file which we must then process
1618 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1619 my ($r, $source_extension)
1620 = &$subr ($directory, $base, $extension,
1621 $nonansi_obj, $have_per_exec_flags, $var);
1622 # Skip this entry if we were asked not to process it.
1623 next if $r == LANG_IGNORE;
1625 # Now extract linker and other info.
1626 $linker = $lang->linker;
1629 if (defined $source_extension)
1631 $this_obj_ext = $source_extension;
1632 $derived_source = 1;
1636 $this_obj_ext = $obj;
1640 $this_obj_ext = $nonansi_obj;
1642 $object = $base . $this_obj_ext;
1644 if ($have_per_exec_flags)
1646 # We have a per-executable flag in effect for this
1647 # object. In this case we rewrite the object's
1648 # name to ensure it is unique.
1650 # We choose the name `DERIVED_OBJECT' to ensure
1651 # (1) uniqueness, and (2) continuity between
1652 # invocations. However, this will result in a
1653 # name that is too long for losing systems, in
1654 # some situations. So we provide _SHORTNAME to
1657 my $dname = $derived;
1658 my $var = var ($derived . '_SHORTNAME');
1661 # FIXME: should use the same Condition as
1662 # the _SOURCES variable. But this is really
1663 # silly overkill -- nobody should have
1664 # conditional shortnames.
1665 $dname = $var->variable_value;
1667 $object = $dname . '-' . $object;
1669 prog_error ($lang->name . " flags defined without compiler")
1670 if ! defined $lang->compile;
1675 # If rewrite said it was ok, put the object into a
1677 if ($r == LANG_SUBDIR && $directory ne '')
1679 $object = $directory . '/' . $object;
1682 # If the object file has been renamed (because per-target
1683 # flags are used) we cannot compile the file with an
1684 # inference rule: we need an explicit rule.
1686 # If the source is in a subdirectory and the object is in
1687 # the current directory, we also need an explicit rule.
1689 # If both source and object files are in a subdirectory
1690 # (this happens when the subdir-objects option is used),
1691 # then the inference will work.
1693 # The latter case deserves a historical note. When the
1694 # subdir-objects option was added on 1999-04-11 it was
1695 # thought that inferences rules would work for
1696 # subdirectory objects too. Later, on 1999-11-22,
1697 # automake was changed to output explicit rules even for
1698 # subdir-objects. Nobody remembers why, but this occured
1699 # soon after the merge of the user-dep-gen-branch so it
1700 # might be related. In late 2003 people complained about
1701 # the size of the generated Makefile.ins (libgcj, with
1702 # 2200+ subdir objects was reported to have a 9MB
1703 # Makefile), so we now rely on inference rules again.
1704 # Maybe we'll run across the same issue as in the past,
1705 # but at least this time we can document it. However since
1706 # dependency tracking has evolved it is possible that
1707 # our old problem no longer exists.
1708 # Using inference rules for subdir-objects has been tested
1709 # with GNU make, Solaris make, Ultrix make, BSD make,
1710 # HP-UX make, and OSF1 make successfully.
1712 || ($directory ne '' && ! option 'subdir-objects')
1713 # We must also use specific rules for a nodist_ source
1714 # if its language requests it.
1715 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1717 my $obj_sans_ext = substr ($object, 0,
1718 - length ($this_obj_ext));
1719 my $full_ansi = $full;
1720 if ($lang->ansi && option 'ansi2knr')
1722 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1723 $obj_sans_ext .= '$U';
1726 my @specifics = ($full_ansi, $obj_sans_ext,
1727 # Only use $this_obj_ext in the derived
1728 # source case because in the other case we
1729 # *don't* want $(OBJEXT) to appear here.
1730 ($derived_source ? $this_obj_ext : '.o'));
1732 # If we renamed the object then we want to use the
1733 # per-executable flag name. But if this is simply a
1734 # subdir build then we still want to use the AM_ flag
1738 unshift @specifics, $derived;
1739 $aggregate = $derived;
1743 unshift @specifics, 'AM';
1746 # Each item on this list is a reference to a list consisting
1747 # of four values followed by additional transform flags for
1748 # file_contents. The four values are the derived flag prefix
1749 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1750 # source file, the base name of the output file, and
1751 # the extension for the object file.
1752 push (@{$lang_specific_files{$lang->name}},
1753 [@specifics, %transform]);
1756 elsif ($extension eq $nonansi_obj)
1758 # This is probably the result of a direct suffix rule.
1759 # In this case we just accept the rewrite.
1760 $object = "$base$extension";
1765 # No error message here. Used to have one, but it was
1767 # FIXME: we could potentially do more processing here,
1768 # perhaps treating the new extension as though it were a
1769 # new source extension (as above). This would require
1770 # more restructuring than is appropriate right now.
1774 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1775 if (defined $object_map{$object}
1776 && $object_map{$object} ne $full);
1778 my $comp_val = (($object =~ /\.lo$/)
1779 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1780 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1781 if (defined $object_compilation_map{$comp_obj}
1782 && $object_compilation_map{$comp_obj} != 0
1783 # Only see the error once.
1784 && ($object_compilation_map{$comp_obj}
1785 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1786 && $object_compilation_map{$comp_obj} != $comp_val)
1788 err_am "object `$comp_obj' created both with libtool and without";
1790 $object_compilation_map{$comp_obj} |= $comp_val;
1794 # Let the language do some special magic if required.
1795 $lang->target_hook ($aggregate, $object, $full, %transform);
1798 if ($derived_source)
1800 prog_error ($lang->name . " has automatic dependency tracking")
1801 if $lang->autodep ne 'no';
1802 # Make sure this new source file is handled next. That will
1803 # make it appear to be at the right place in the list.
1804 unshift (@files, $object);
1805 # Distribute derived sources unless the source they are
1806 # derived from is not.
1807 &push_dist_common ($object)
1808 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1812 $linkers_used{$linker} = 1;
1814 push (@result, $object);
1816 if (! defined $object_map{$object})
1819 $object_map{$object} = $full;
1821 # If resulting object is in subdir, we need to make
1822 # sure the subdir exists at build time.
1823 if ($object =~ /\//)
1825 # FIXME: check that $DIRECTORY is somewhere in the
1828 # For Java, the way we're handling it right now, a
1829 # `..' component doesn't make sense.
1830 if ($lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1832 err_am "`$full' should not contain a `..' component";
1835 # Make sure object is removed by `make mostlyclean'.
1836 $compile_clean_files{$object} = MOSTLY_CLEAN;
1837 # If we have a libtool object then we also must remove
1839 if ($object =~ /\.lo$/)
1841 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1842 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1844 # Remove any libtool object in this directory.
1845 $libtool_clean_directories{$directory} = 1;
1848 push (@dep_list, require_build_directory ($directory));
1850 # If we're generating dependencies, we also want
1851 # to make sure that the appropriate subdir of the
1852 # .deps directory is created.
1854 require_build_directory ($directory . '/$(DEPDIR)'))
1855 unless option 'no-dependencies';
1858 &pretty_print_rule ($object . ':', "\t", @dep_list)
1859 if scalar @dep_list > 0;
1862 # Transform .o or $o file into .P file (for automatic
1864 if ($lang && $lang->autodep ne 'no')
1866 my $depfile = $object;
1867 $depfile =~ s/\.([^.]*)$/.P$1/;
1868 $depfile =~ s/\$\(OBJEXT\)$/o/;
1869 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1870 . basename ($depfile)} = 1;
1879 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1880 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1881 # ---------------------------------------------------------------------------
1882 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1885 # $VAR is the name of the _SOURCES variable
1886 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1887 # it will be generated and returned).
1888 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1889 # work done to determine the linker will be).
1890 # $ONE_FILE is the canonical (transformed) name of object to build
1891 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1892 # $TOPPARENT is the _SOURCES variable being processed.
1893 # $WHERE context into which this definition is done
1894 # %TRANSFORM extra arguments to pass to file_contents when producing
1897 # Result is a pair ($LINKER, $OBJVAR):
1898 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1899 sub define_objects_from_sources ($$$$$$$%)
1901 my ($var, $objvar, $nodefine, $one_file,
1902 $obj, $topparent, $where, %transform) = @_;
1904 my $needlinker = "";
1906 transform_variable_recursively
1907 ($var, $objvar, 'am__objects', $nodefine, $where,
1908 # The transform code to run on each filename.
1910 my ($subvar, $val, $cond, $full_cond) = @_;
1911 my @trans = handle_single_transform ($subvar, $topparent,
1912 $one_file, $obj, $val,
1914 $needlinker = "true" if @trans;
1922 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
1923 # -----------------------------------------------------------------------------
1924 # Handle SOURCE->OBJECT transform for one program or library.
1926 # canonical (transformed) name of target to build
1927 # actual target of object to build
1928 # object extension (i.e., either `.o' or `$o')
1929 # location of the source variable
1930 # extra arguments to pass to file_contents when producing rules
1931 # Return the name of the linker variable that must be used.
1932 # Empty return means just use `LINK'.
1933 sub handle_source_transform ($$$$%)
1935 # one_file is canonical name. unxformed is given name. obj is
1937 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
1941 # No point in continuing if _OBJECTS is defined.
1942 return if reject_var ($one_file . '_OBJECTS',
1943 $one_file . '_OBJECTS should not be defined');
1948 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1949 'dist_EXTRA_', 'nodist_EXTRA_')
1951 my $varname = $prefix . $one_file . "_SOURCES";
1952 my $var = var $varname;
1955 # We are going to define _OBJECTS variables using the prefix.
1956 # Then we glom them all together. So we can't use the null
1957 # prefix here as we need it later.
1958 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
1960 # Keep track of which prefixes we saw.
1961 $used_pfx{$xpfx} = 1
1962 unless $prefix =~ /EXTRA_/;
1964 push @sources, "\$($varname)";
1965 push @dist_sources, shadow_unconditionally ($varname, $where)
1966 unless (option ('no-dist') || $prefix =~ /^nodist_/);
1969 define_objects_from_sources ($varname,
1970 $xpfx . $one_file . '_OBJECTS',
1971 $prefix =~ /EXTRA_/,
1972 $one_file, $obj, $varname, $where,
1973 DIST_SOURCE => ($prefix !~ /^nodist_/),
1978 $linker ||= &resolve_linker (%linkers_used);
1981 my @keys = sort keys %used_pfx;
1982 if (scalar @keys == 0)
1984 # The default source for libfoo.la is libfoo.c, but for
1985 # backward compatibility we first look at libfoo_la.c
1986 my $old_default_source = "$one_file.c";
1987 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
1988 if ($old_default_source ne $default_source
1989 && (rule $old_default_source
1990 || rule '$(srcdir)/' . $old_default_source
1991 || rule '${srcdir}/' . $old_default_source
1992 || -f $old_default_source))
1994 my $loc = $where->clone;
1996 msg ('obsolete', $loc,
1997 "the default source for `$unxformed' has been changed "
1998 . "to `$default_source'.\n(Using `$old_default_source' for "
1999 . "backward compatibility.)");
2000 $default_source = $old_default_source;
2002 # If a rule exists to build this source with a $(srcdir)
2003 # prefix, use that prefix in our variables too. This is for
2004 # the sake of BSD Make.
2005 if (rule '$(srcdir)/' . $default_source
2006 || rule '${srcdir}/' . $default_source)
2008 $default_source = '$(srcdir)/' . $default_source;
2011 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2012 push (@sources, $default_source);
2013 push (@dist_sources, $default_source);
2017 handle_single_transform ($one_file . '_SOURCES',
2018 $one_file . '_SOURCES',
2020 $default_source, %transform);
2021 $linker ||= &resolve_linker (%linkers_used);
2022 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2026 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2027 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2030 # If we want to use `LINK' we must make sure it is defined.
2040 # handle_lib_objects ($XNAME, $VAR)
2041 # ---------------------------------
2042 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2043 # Also, generate _DEPENDENCIES variable if appropriate.
2045 # transformed name of object being built, or empty string if no object
2046 # name of _LDADD/_LIBADD-type variable to examine
2047 # Returns 1 if LIBOBJS seen, 0 otherwise.
2048 sub handle_lib_objects
2050 my ($xname, $varname) = @_;
2052 my $var = var ($varname);
2053 prog_error "handle_lib_objects: `$varname' undefined"
2055 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2056 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2057 my $prefix = $1 || 'AM_';
2059 my $seen_libobjs = 0;
2062 transform_variable_recursively
2063 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2065 # Transformation function, run on each filename.
2067 my ($subvar, $val, $cond, $full_cond) = @_;
2071 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2072 if ($val !~ /^-[lL]/ &&
2073 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2074 # for Libtool libraries or programs. (Actually we are a bit
2075 # laxest here since this code also applies to non-libtool
2076 # libraries or programs, for which -dlopen and -dlopreopen
2077 # are pure non-sence. Diagnosting this doesn't seems very
2078 # important: the developer will quickly get complaints from
2080 $val !~ /^-dl(?:pre)?open$/ &&
2081 # Only get this error once.
2085 # FIXME: should display a stack of nested variables
2086 # as context when $var != $subvar.
2087 err_var ($var, "linker flags such as `$val' belong in "
2088 . "`${prefix}LDFLAGS");
2092 elsif ($val !~ /^\@.*\@$/)
2094 # Assume we have a file of some sort, and output it into the
2095 # dependency variable. Autoconf substitutions are not output;
2096 # rarely is a new dependency substituted into e.g. foo_LDADD
2097 # -- but bad things (e.g. -lX11) are routinely substituted.
2098 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2099 # and handled specially below.
2102 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2104 handle_LIBOBJS ($subvar, $cond, $1);
2108 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2110 handle_ALLOCA ($subvar, $cond, $1);
2119 return $seen_libobjs;
2122 # handle_LIBOBJS_or_ALLOCA ($VAR)
2123 # -------------------------------
2124 # Definitions common to LIBOBJS and ALLOCA.
2125 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2126 sub handle_LIBOBJS_or_ALLOCA ($)
2130 my $dir = $config_libobj_dir ? "$config_libobj_dir/" : '';
2132 # If LIBOBJS files must be built in another directory we have
2133 # to define LIBOBJDIR and ensure the files get cleaned.
2134 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2135 # is achieved by `rm -f *.($OBJEXT)' in compile.am.
2136 if ($config_libobj_dir
2137 && $relative_dir ne $config_libobj_dir)
2139 if (option 'subdir-objects')
2141 define_variable ('LIBOBJDIR', "\$(top_builddir)/$dir", INTERNAL);
2142 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2143 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2144 # be created by libtool as a side-effect of creating LTLIBOBJS).
2145 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2150 error ("`\$($var)' cannot be used outside `$dir' if"
2151 . " `subdir-objects' is not set");
2158 sub handle_LIBOBJS ($$$)
2160 my ($var, $cond, $lt) = @_;
2162 my $myobjext = ($1 ? 'l' : '') . 'o';
2164 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2165 if ! keys %libsources;
2167 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2169 foreach my $iter (keys %libsources)
2171 if ($iter =~ /\.[cly]$/)
2173 &saw_extension ($&);
2174 &saw_extension ('.c');
2177 if ($iter =~ /\.h$/)
2179 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2181 elsif ($iter ne 'alloca.c')
2183 my $rewrite = $iter;
2184 $rewrite =~ s/\.c$/.P$myobjext/;
2185 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2186 $rewrite = "^" . quotemeta ($iter) . "\$";
2187 # Only require the file if it is not a built source.
2188 my $bs = var ('BUILT_SOURCES');
2189 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2191 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2197 sub handle_ALLOCA ($$$)
2199 my ($var, $cond, $lt) = @_;
2200 my $myobjext = ($lt ? 'l' : '') . 'o';
2202 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2204 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2205 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2206 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2207 &saw_extension ('.c');
2210 # Canonicalize the input parameter
2214 $string =~ tr/A-Za-z0-9_\@/_/c;
2218 # Canonicalize a name, and check to make sure the non-canonical name
2219 # is never used. Returns canonical name. Arguments are name and a
2220 # list of suffixes to check for.
2221 sub check_canonical_spelling
2223 my ($name, @suffixes) = @_;
2225 my $xname = &canonicalize ($name);
2226 if ($xname ne $name)
2228 foreach my $xt (@suffixes)
2230 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2240 # Set up the compile suite.
2241 sub handle_compile ()
2244 unless $get_object_extension_was_run;
2247 my $default_includes = '';
2248 if (! option 'nostdinc')
2250 $default_includes = ' -I. -I$(srcdir)';
2252 my $var = var 'CONFIG_HEADER';
2255 foreach my $hdr (split (' ', $var->variable_value))
2257 $default_includes .= ' -I' . dirname ($hdr);
2262 my (@mostly_rms, @dist_rms);
2263 foreach my $item (sort keys %compile_clean_files)
2265 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2267 push (@mostly_rms, "\t-rm -f $item");
2269 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2271 push (@dist_rms, "\t-rm -f $item");
2275 prog_error 'invalid entry in %compile_clean_files';
2279 my ($coms, $vars, $rules) =
2280 &file_contents_internal (1, "$libdir/am/compile.am",
2281 new Automake::Location,
2282 ('DEFAULT_INCLUDES' => $default_includes,
2283 'MOSTLYRMS' => join ("\n", @mostly_rms),
2284 'DISTRMS' => join ("\n", @dist_rms)));
2285 $output_vars .= $vars;
2286 $output_rules .= "$coms$rules";
2288 # Check for automatic de-ANSI-fication.
2289 if (option 'ansi2knr')
2291 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2292 my $ansi2knr_dir = '';
2294 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2295 TRUE, "ANSI2KNR", "U");
2297 # topdir is where ansi2knr should be.
2298 if ($ansi2knr_filename eq 'ansi2knr')
2300 # Only require ansi2knr files if they should appear in
2302 require_file ($ansi2knr_where, FOREIGN,
2303 'ansi2knr.c', 'ansi2knr.1');
2305 # ansi2knr needs to be built before subdirs, so unshift it.
2306 unshift (@all, '$(ANSI2KNR)');
2310 $ansi2knr_dir = dirname ($ansi2knr_filename);
2313 $output_rules .= &file_contents ('ansi2knr',
2314 new Automake::Location,
2315 'ANSI2KNR-DIR' => $ansi2knr_dir);
2322 # Handle libtool rules.
2325 return unless var ('LIBTOOL');
2327 # Libtool requires some files, but only at top level.
2328 # (Starting with Libtool 2.0 we do not have to bother. These
2329 # requirements are done with AC_REQUIRE_AUX_FILE.)
2330 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2331 if $relative_dir eq '.' && ! $libtool_new_api;
2334 foreach my $item (sort keys %libtool_clean_directories)
2336 my $dir = ($item eq '.') ? '' : "$item/";
2337 # .libs is for Unix, _libs for DOS.
2338 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2341 check_user_variables 'LIBTOOLFLAGS';
2343 # Output the libtool compilation rules.
2344 $output_rules .= &file_contents ('libtool',
2345 new Automake::Location,
2346 LTRMS => join ("\n", @libtool_rms));
2349 # handle_programs ()
2350 # ------------------
2351 # Handle C programs.
2354 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2355 'bin', 'sbin', 'libexec', 'pkglib',
2357 return if ! @proglist;
2359 my $seen_global_libobjs =
2360 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2362 foreach my $pair (@proglist)
2364 my ($where, $one_file) = @$pair;
2366 my $seen_libobjs = 0;
2367 my $obj = get_object_extension '.$(OBJEXT)';
2369 # Strip any $(EXEEXT) suffix the user might have added, or this
2370 # will confuse &handle_source_transform and &check_canonical_spelling.
2371 # We'll add $(EXEEXT) back later anyway.
2372 $one_file =~ s/\$\(EXEEXT\)$//;
2374 # Canonicalize names and check for misspellings.
2375 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2376 '_SOURCES', '_OBJECTS',
2379 $where->push_context ("while processing program `$one_file'");
2380 $where->set (INTERNAL->get);
2382 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2383 NONLIBTOOL => 1, LIBTOOL => 0);
2385 if (var ($xname . "_LDADD"))
2387 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2391 # User didn't define prog_LDADD override. So do it.
2392 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2394 # This does a bit too much work. But we need it to
2395 # generate _DEPENDENCIES when appropriate.
2398 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2402 reject_var ($xname . '_LIBADD',
2403 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2405 set_seen ($xname . '_DEPENDENCIES');
2406 set_seen ($xname . '_LDFLAGS');
2408 # Determine program to use for link.
2409 my $xlink = &define_per_target_linker_variable ($linker, $xname);
2411 # If the resulting program lies into a subdirectory,
2412 # make sure this directory will exist.
2413 my $dirstamp = require_build_directory_maybe ($one_file);
2415 $output_rules .= &file_contents ('program',
2417 PROGRAM => $one_file,
2420 DIRSTAMP => $dirstamp,
2421 EXEEXT => '$(EXEEXT)');
2423 if ($seen_libobjs || $seen_global_libobjs)
2425 if (var ($xname . '_LDADD'))
2427 &check_libobjs_sources ($xname, $xname . '_LDADD');
2429 elsif (var ('LDADD'))
2431 &check_libobjs_sources ($xname, 'LDADD');
2438 # handle_libraries ()
2439 # -------------------
2441 sub handle_libraries
2443 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2444 'lib', 'pkglib', 'noinst', 'check');
2445 return if ! @liblist;
2447 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2452 my $var = rvar ($prefix[0] . '_LIBRARIES');
2453 $var->requires_variables ('library used', 'RANLIB');
2456 &define_variable ('AR', 'ar', INTERNAL);
2457 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2459 foreach my $pair (@liblist)
2461 my ($where, $onelib) = @$pair;
2463 my $seen_libobjs = 0;
2464 # Check that the library fits the standard naming convention.
2465 my $bn = basename ($onelib);
2466 if ($bn !~ /^lib.*\.a$/)
2468 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2469 my $suggestion = dirname ($onelib) . "/$bn";
2470 $suggestion =~ s|^\./||g;
2471 msg ('error-gnu/warn', $where,
2472 "`$onelib' is not a standard library name\n"
2473 . "did you mean `$suggestion'?")
2476 $where->push_context ("while processing library `$onelib'");
2477 $where->set (INTERNAL->get);
2479 my $obj = get_object_extension '.$(OBJEXT)';
2481 # Canonicalize names and check for misspellings.
2482 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2483 '_OBJECTS', '_DEPENDENCIES',
2486 if (! var ($xlib . '_AR'))
2488 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2491 # Generate support for conditional object inclusion in
2493 if (var ($xlib . '_LIBADD'))
2495 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2502 &define_variable ($xlib . "_LIBADD", '', $where);
2505 reject_var ($xlib . '_LDADD',
2506 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2508 # Make sure we at look at this.
2509 set_seen ($xlib . '_DEPENDENCIES');
2511 &handle_source_transform ($xlib, $onelib, $obj, $where,
2512 NONLIBTOOL => 1, LIBTOOL => 0);
2514 # If the resulting library lies into a subdirectory,
2515 # make sure this directory will exist.
2516 my $dirstamp = require_build_directory_maybe ($onelib);
2518 $output_rules .= &file_contents ('library',
2522 DIRSTAMP => $dirstamp);
2526 if (var ($xlib . '_LIBADD'))
2528 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2535 # handle_ltlibraries ()
2536 # ---------------------
2537 # Handle shared libraries.
2538 sub handle_ltlibraries
2540 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2541 'noinst', 'lib', 'pkglib', 'check');
2542 return if ! @liblist;
2544 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2549 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2550 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2555 my %liblocations = (); # Location (in Makefile.am) of each library.
2557 foreach my $key (@prefix)
2559 # Get the installation directory of each library.
2560 (my $dir = $key) =~ s/^nobase_//;
2561 my $var = rvar ($key . '_LTLIBRARIES');
2563 # We reject libraries which are installed in several places
2564 # in the same condition, because we can only specify one
2566 $var->traverse_recursively
2569 my ($var, $val, $cond, $full_cond) = @_;
2570 my $hcond = $full_cond->human;
2571 my $where = $var->rdef ($cond)->location;
2572 # A library cannot be installed in different directory
2573 # in overlapping conditions.
2574 if (exists $instconds{$val})
2577 $instconds{$val}->ambiguous_p ($val, $full_cond);
2581 error ($where, $msg, partial => 1);
2583 my $dirtxt = "installed in `$dir'";
2584 $dirtxt = "built for `$dir'"
2585 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2587 $full_cond->true ? "" : " in condition $hcond";
2589 error ($where, "`$val' should be $dirtxt$dircond ...",
2592 my $hacond = $acond->human;
2593 my $adir = $instdirs{$val}{$acond};
2594 my $adirtxt = "installed in `$adir'";
2595 $adirtxt = "built for `$adir'"
2596 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2597 || $adir eq 'check');
2598 my $adircond = $acond->true ? "" : " in condition $hacond";
2600 my $onlyone = ($dir ne $adir) ?
2601 ("\nLibtool libraries can be built for only one "
2602 . "destination.") : "";
2604 error ($liblocations{$val}{$acond},
2605 "... and should also be $adirtxt$adircond.$onlyone");
2611 $instconds{$val} = new Automake::DisjConditions;
2613 $instdirs{$val}{$full_cond} = $dir;
2614 $liblocations{$val}{$full_cond} = $where;
2615 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2621 skip_ac_subst => 1);
2624 foreach my $pair (@liblist)
2626 my ($where, $onelib) = @$pair;
2628 my $seen_libobjs = 0;
2629 my $obj = get_object_extension '.lo';
2631 # Canonicalize names and check for misspellings.
2632 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2633 '_SOURCES', '_OBJECTS',
2636 # Check that the library fits the standard naming convention.
2637 my $libname_rx = '^lib.*\.la';
2638 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2639 my $ldvar2 = var ('LDFLAGS');
2640 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2641 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2643 # Relax name checking for libtool modules.
2644 $libname_rx = '\.la';
2647 my $bn = basename ($onelib);
2648 if ($bn !~ /$libname_rx$/)
2650 my $type = 'library';
2651 if ($libname_rx eq '\.la')
2653 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2658 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2660 my $suggestion = dirname ($onelib) . "/$bn";
2661 $suggestion =~ s|^\./||g;
2662 msg ('error-gnu/warn', $where,
2663 "`$onelib' is not a standard libtool $type name\n"
2664 . "did you mean `$suggestion'?")
2667 $where->push_context ("while processing Libtool library `$onelib'");
2668 $where->set (INTERNAL->get);
2670 # Make sure we look at these.
2671 set_seen ($xlib . '_LDFLAGS');
2672 set_seen ($xlib . '_DEPENDENCIES');
2674 # Generate support for conditional object inclusion in
2676 if (var ($xlib . '_LIBADD'))
2678 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2685 &define_variable ($xlib . "_LIBADD", '', $where);
2688 reject_var ("${xlib}_LDADD",
2689 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2692 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2693 NONLIBTOOL => 0, LIBTOOL => 1);
2695 # Determine program to use for link.
2696 my $xlink = &define_per_target_linker_variable ($linker, $xlib);
2698 my $rpathvar = "am_${xlib}_rpath";
2699 my $rpath = "\$($rpathvar)";
2700 foreach my $rcond ($instconds{$onelib}->conds)
2703 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2704 || $instdirs{$onelib}{$rcond} eq 'noinst'
2705 || $instdirs{$onelib}{$rcond} eq 'check')
2707 # It's an EXTRA_ library, so we can't specify -rpath,
2708 # because we don't know where the library will end up.
2709 # The user probably knows, but generally speaking automake
2710 # doesn't -- and in fact configure could decide
2711 # dynamically between two different locations.
2716 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2720 # If $rcond is true there is only one condition and
2721 # there is no point defining an helper variable.
2726 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2730 # If the resulting library lies into a subdirectory,
2731 # make sure this directory will exist.
2732 my $dirstamp = require_build_directory_maybe ($onelib);
2734 # Remember to cleanup .libs/ in this directory.
2735 my $dirname = dirname $onelib;
2736 $libtool_clean_directories{$dirname} = 1;
2738 $output_rules .= &file_contents ('ltlibrary',
2740 LTLIBRARY => $onelib,
2741 XLTLIBRARY => $xlib,
2744 DIRSTAMP => $dirstamp);
2747 if (var ($xlib . '_LIBADD'))
2749 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2755 # See if any _SOURCES variable were misspelled.
2758 # It is ok if the user sets this particular variable.
2759 set_seen 'AM_LDFLAGS';
2761 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2763 foreach my $var (variables $primary)
2765 my $varname = $var->name;
2766 # A configure variable is always legitimate.
2767 next if exists $configure_vars{$varname};
2769 for my $cond ($var->conditions->conds)
2771 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2772 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2773 . " program or\nlibrary has `$1' as canonic name"
2774 . " (possible typo)")
2775 unless $var->rdef ($cond)->seen;
2785 # NOTE we no longer automatically clean SCRIPTS, because it is
2786 # useful to sometimes distribute scripts verbatim. This happens
2787 # e.g. in Automake itself.
2788 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2789 'bin', 'sbin', 'libexec', 'pkgdata',
2796 ## ------------------------ ##
2797 ## Handling Texinfo files. ##
2798 ## ------------------------ ##
2800 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2801 # &scan_texinfo_file ($FILENAME)
2802 # ------------------------------
2803 # $OUTFILE - name of the info file produced by $FILENAME.
2804 # $VFILE - name of the version.texi file used (undef if none).
2805 # @CLEAN_FILES - list of byproducts (indexes etc.)
2806 sub scan_texinfo_file ($)
2808 my ($filename) = @_;
2810 # Some of the following extensions are always created, no matter
2811 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2812 # are only created when they are used. We used to scan $FILENAME
2813 # for their use, but that is not enough: they could be used in
2814 # included files. We can't scan included files because we don't
2815 # know the include path. Therefore we always erase these files, no
2816 # matter whether they are used or not.
2818 # (tmp is only created if an @macro is used and a certain e-TeX
2819 # feature is not available.)
2820 my %clean_suffixes =
2821 map { $_ => 1 } (qw(aux log toc tmp
2827 pg pgs)); # grep 'new.*index' texinfo.tex
2829 my $texi = new Automake::XFile "< $filename";
2830 verb "reading $filename";
2832 my ($outfile, $vfile);
2833 while ($_ = $texi->getline)
2835 if (/^\@setfilename +(\S+)/)
2837 # Honor only the first @setfilename. (It's possible to have
2838 # more occurrences later if the manual shows examples of how
2839 # to use @setfilename...)
2843 if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
2845 error ("$filename:$.",
2846 "output `$outfile' has unrecognized extension");
2850 # A "version.texi" file is actually any file whose name matches
2852 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2857 # Try to find new or unused indexes.
2859 # Creating a new category of index.
2860 elsif (/^\@def(code)?index (\w+)/)
2862 $clean_suffixes{$2} = 1;
2863 $clean_suffixes{"$2s"} = 1;
2866 # Merging an index into an another.
2867 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2869 delete $clean_suffixes{"$2s"};
2870 $clean_suffixes{"$3s"} = 1;
2877 err_am "`$filename' missing \@setfilename";
2881 my $infobase = basename ($filename);
2882 $infobase =~ s/\.te?xi(nfo)?$//;
2883 return ($outfile, $vfile,
2884 map { "$infobase.$_" } (sort keys %clean_suffixes));
2888 # ($DIRSTAMP, @CLEAN_FILES)
2889 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2890 # ------------------------------------------------------------------
2891 # SOURCE - the source Texinfo file
2892 # DEST - the destination Info file
2893 # INSRC - wether DEST should be built in the source tree
2894 # DEPENDENCIES - known dependencies
2895 sub output_texinfo_build_rules ($$$@)
2897 my ($source, $dest, $insrc, @deps) = @_;
2899 # Split `a.texi' into `a' and `.texi'.
2900 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2901 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2906 # We can output two kinds of rules: the "generic" rules use Make
2907 # suffix rules and are appropriate when $source and $dest do not lie
2908 # in a sub-directory; the "specific" rules are needed in the other
2911 # The former are output only once (this is not really apparent here,
2912 # but just remember that some logic deeper in Automake will not
2913 # output the same rule twice); while the later need to be output for
2914 # each Texinfo source.
2917 my $sdir = dirname $source;
2918 if ($sdir eq '.' && dirname ($dest) eq '.')
2921 $makeinfoflags = '-I $(srcdir)';
2926 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
2929 # A directory can contain two kinds of info files: some built in the
2930 # source tree, and some built in the build tree. The rules are
2931 # different in each case. However we cannot output two different
2932 # set of generic rules. Because in-source builds are more usual, we
2933 # use generic rules in this case and fall back to "specific" rules
2934 # for build-dir builds. (It should not be a problem to invert this
2936 $generic = 0 unless $insrc;
2938 # We cannot use a suffix rule to build info files with an empty
2939 # extension. Otherwise we would output a single suffix inference
2940 # rule, with separate dependencies, as in
2944 # foo.info: foo.texi
2946 # which confuse Solaris make. (See the Autoconf manual for
2947 # details.) Therefore we use a specific rule in this case. This
2948 # applies to info files only (dvi and pdf files always have an
2950 my $generic_info = ($generic && $dsfx) ? 1 : 0;
2952 # If the resulting file lie into a subdirectory,
2953 # make sure this directory will exist.
2954 my $dirstamp = require_build_directory_maybe ($dest);
2956 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
2958 $output_rules .= file_contents ('texibuild',
2959 new Automake::Location,
2961 DEST_PREFIX => $dpfx,
2962 DEST_INFO_PREFIX => $dipfx,
2963 DEST_SUFFIX => $dsfx,
2964 DIRSTAMP => $dirstamp,
2965 GENERIC => $generic,
2966 GENERIC_INFO => $generic_info,
2968 MAKEINFOFLAGS => $makeinfoflags,
2971 SOURCE_INFO => ($generic_info
2973 SOURCE_REAL => $source,
2974 SOURCE_SUFFIX => $ssfx,
2976 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
2981 # handle_texinfo_helper ($info_texinfos)
2982 # --------------------------------------
2983 # Handle all Texinfo source; helper for handle_texinfo.
2984 sub handle_texinfo_helper ($)
2986 my ($info_texinfos) = @_;
2987 my (@infobase, @info_deps_list, @texi_deps);
2992 # Build a regex matching user-cleaned files.
2993 my $d = var 'DISTCLEANFILES';
2994 my $c = var 'CLEANFILES';
2996 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
2997 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
2998 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
2999 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3002 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3004 my $infobase = $texi;
3005 $infobase =~ s/\.(txi|texinfo|texi)$//;
3007 if ($infobase eq $texi)
3009 # FIXME: report line number.
3010 err_am "texinfo file `$texi' has unrecognized extension";
3014 push @infobase, $infobase;
3016 # If 'version.texi' is referenced by input file, then include
3017 # automatic versioning capability.
3018 my ($out_file, $vtexi, @clean_files) =
3019 scan_texinfo_file ("$relative_dir/$texi")
3021 push (@texi_cleans, @clean_files);
3023 # If the Texinfo source is in a subdirectory, create the
3024 # resulting info in this subdirectory. If it is in the current
3025 # directory, try hard to not prefix "./" because it breaks the
3027 my $outdir = dirname ($texi) . '/';
3028 $outdir = "" if $outdir eq './';
3029 $out_file = $outdir . $out_file;
3031 # Until Automake 1.6.3, .info files were built in the
3032 # source tree. This was an obstacle to the support of
3033 # non-distributed .info files, and non-distributed .texi
3036 # * Non-distributed .texi files is important in some packages
3037 # where .texi files are built at make time, probably using
3038 # other binaries built in the package itself, maybe using
3039 # tools or information found on the build host. Because
3040 # these files are not distributed they are always rebuilt
3041 # at make time; they should therefore not lie in the source
3042 # directory. One plan was to support this using
3043 # nodist_info_TEXINFOS or something similar. (Doing this
3044 # requires some sanity checks. For instance Automake should
3046 # dist_info_TEXINFO = foo.texi
3047 # nodist_foo_TEXINFO = included.texi
3048 # because a distributed file should never depend on a
3049 # non-distributed file.)
3051 # * If .texi files are not distributed, then .info files should
3052 # not be distributed either. There are also cases where one
3053 # want to distribute .texi files, but do not want to
3054 # distribute the .info files. For instance the Texinfo package
3055 # distributes the tool used to build these files; it would
3056 # be a waste of space to distribute them. It's not clear
3057 # which syntax we should use to indicate that .info files should
3058 # not be distributed. Akim Demaille suggested that eventually
3059 # we switch to a new syntax:
3060 # | Maybe we should take some inspiration from what's already
3061 # | done in the rest of Automake. Maybe there is too much
3062 # | syntactic sugar here, and you want
3063 # | nodist_INFO = bar.info
3064 # | dist_bar_info_SOURCES = bar.texi
3065 # | bar_texi_DEPENDENCIES = foo.texi
3066 # | with a bit of magic to have bar.info represent the whole
3067 # | bar*info set. That's a lot more verbose that the current
3068 # | situation, but it is # not new, hence the user has less
3071 # | But there is still too much room for meaningless specs:
3072 # | nodist_INFO = bar.info
3073 # | dist_bar_info_SOURCES = bar.texi
3074 # | dist_PS = bar.ps something-written-by-hand.ps
3075 # | nodist_bar_ps_SOURCES = bar.texi
3076 # | bar_texi_DEPENDENCIES = foo.texi
3077 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3079 # Back to the point, it should be clear that in order to support
3080 # non-distributed .info files, we need to build them in the
3081 # build tree, not in the source tree (non-distributed .texi
3082 # files are less of a problem, because we do not output build
3083 # rules for them). In Automake 1.7 .info build rules have been
3084 # largely cleaned up so that .info files get always build in the
3085 # build tree, even when distributed. The idea was that
3086 # (1) if during a VPATH build the .info file was found to be
3087 # absent or out-of-date (in the source tree or in the
3088 # build tree), Make would rebuild it in the build tree.
3089 # If an up-to-date source-tree of the .info file existed,
3090 # make would not rebuild it in the build tree.
3091 # (2) having two copies of .info files, one in the source tree
3092 # and one (newer) in the build tree is not a problem
3093 # because `make dist' always pick files in the build tree
3095 # However it turned out the be a bad idea for several reasons:
3096 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3097 # like GNU Make on point (1) above. These implementations
3098 # of Make would always rebuild .info files in the build
3099 # tree, even if such files were up to date in the source
3100 # tree. Consequently, it was impossible to perform a VPATH
3101 # build of a package containing Texinfo files using these
3102 # Make implementations.
3103 # (Refer to the Autoconf Manual, section "Limitation of
3104 # Make", paragraph "VPATH", item "target lookup", for
3105 # an account of the differences between these
3107 # * The GNU Coding Standards require these files to be built
3108 # in the source-tree (when they are distributed, that is).
3109 # * Keeping a fresher copy of distributed files in the
3110 # build tree can be annoying during development because
3111 # - if the files is kept under CVS, you really want it
3112 # to be updated in the source tree
3113 # - it is confusing that `make distclean' does not erase
3114 # all files in the build tree.
3116 # Consequently, starting with Automake 1.8, .info files are
3117 # built in the source tree again. Because we still plan to
3118 # support non-distributed .info files at some point, we
3119 # have a single variable ($INSRC) that controls whether
3120 # the current .info file must be built in the source tree
3121 # or in the build tree. Actually this variable is switched
3122 # off for .info files that appear to be cleaned; this is
3123 # for backward compatibility with package such as Texinfo,
3124 # which do things like
3125 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3126 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3127 # # Do not create info files for distribution.
3129 # in order not to distribute .info files.
3130 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3132 my $soutdir = '$(srcdir)/' . $outdir;
3133 $outdir = $soutdir if $insrc;
3135 # If user specified file_TEXINFOS, then use that as explicit
3138 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3140 my $canonical = canonicalize ($infobase);
3141 if (var ($canonical . "_TEXINFOS"))
3143 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3144 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3147 my ($dirstamp, @cfiles) =
3148 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3149 push (@texi_cleans, @cfiles);
3151 push (@info_deps_list, $out_file);
3153 # If a vers*.texi file is needed, emit the rule.
3156 err_am ("`$vtexi', included in `$texi', "
3157 . "also included in `$versions{$vtexi}'")
3158 if defined $versions{$vtexi};
3159 $versions{$vtexi} = $texi;
3161 # We number the stamp-vti files. This is doable since the
3162 # actual names don't matter much. We only number starting
3163 # with the second one, so that the common case looks nice.
3164 my $vti = ($done ? $done : 'vti');
3167 # This is ugly, but it is our historical practice.
3168 if ($config_aux_dir_set_in_configure_ac)
3170 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3175 require_file_with_macro (TRUE, 'info_TEXINFOS',
3176 FOREIGN, 'mdate-sh');
3180 if ($config_aux_dir_set_in_configure_ac)
3182 $conf_dir = "$am_config_aux_dir/";
3186 $conf_dir = '$(srcdir)/';
3188 $output_rules .= file_contents ('texi-vers',
3189 new Automake::Location,
3192 STAMPVTI => "${soutdir}stamp-$vti",
3193 VTEXI => "$soutdir$vtexi",
3195 DIRSTAMP => $dirstamp);
3199 # Handle location of texinfo.tex.
3200 my $need_texi_file = 0;
3202 if (var ('TEXINFO_TEX'))
3204 # The user defined TEXINFO_TEX so assume he knows what he is
3206 $texinfodir = ('$(srcdir)/'
3207 . dirname (variable_value ('TEXINFO_TEX')));
3209 elsif (option 'cygnus')
3211 $texinfodir = '$(top_srcdir)/../texinfo';
3212 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3214 elsif ($config_aux_dir_set_in_configure_ac)
3216 $texinfodir = $am_config_aux_dir;
3217 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3218 $need_texi_file = 2; # so that we require_conf_file later
3222 $texinfodir = '$(srcdir)';
3223 $need_texi_file = 1;
3225 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3227 push (@dist_targets, 'dist-info');
3229 if (! option 'no-installinfo')
3231 # Make sure documentation is made and installed first. Use
3232 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3233 # get run twice during "make all".
3234 unshift (@all, '$(INFO_DEPS)');
3237 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3238 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3239 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3240 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3242 # This next isn't strictly needed now -- the places that look here
3243 # could easily be changed to look in info_TEXINFOS. But this is
3244 # probably better, in case noinst_TEXINFOS is ever supported.
3245 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3247 # Do some error checking. Note that this file is not required
3248 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3250 if ($need_texi_file && ! option 'no-texinfo.tex')
3252 if ($need_texi_file > 1)
3254 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3259 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3264 return makefile_wrap ("", "\t ", @texi_cleans);
3270 # Handle all Texinfo source.
3271 sub handle_texinfo ()
3273 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3274 # FIXME: I think this is an obsolete future feature name.
3275 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3277 my $info_texinfos = var ('info_TEXINFOS');
3281 $texiclean = handle_texinfo_helper ($info_texinfos);
3283 $output_rules .= file_contents ('texinfos',
3284 new Automake::Location,
3285 TEXICLEAN => $texiclean,
3286 'LOCAL-TEXIS' => !!$info_texinfos);
3290 # Handle any man pages.
3291 sub handle_man_pages
3293 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3295 # Find all the sections in use. We do this by first looking for
3296 # "standard" sections, and then looking for any additional
3297 # sections used in man_MANS.
3298 my (%sections, %vlist);
3299 # We handle nodist_ for uniformity. man pages aren't distributed
3300 # by default so it isn't actually very important.
3301 foreach my $pfx ('', 'dist_', 'nodist_')
3303 # Add more sections as needed.
3304 foreach my $section ('0'..'9', 'n', 'l')
3306 my $varname = $pfx . 'man' . $section . '_MANS';
3309 $sections{$section} = 1;
3310 $varname = '$(' . $varname . ')';
3311 $vlist{$varname} = 1;
3313 &push_dist_common ($varname)
3318 my $varname = $pfx . 'man_MANS';
3319 my $var = var ($varname);
3322 foreach ($var->value_as_list_recursive)
3324 # A page like `foo.1c' goes into man1dir.
3325 if (/\.([0-9a-z])([a-z]*)$/)
3331 $varname = '$(' . $varname . ')';
3332 $vlist{$varname} = 1;
3333 &push_dist_common ($varname)
3338 return unless %sections;
3340 # Now for each section, generate an install and uninstall rule.
3341 # Sort sections so output is deterministic.
3342 foreach my $section (sort keys %sections)
3344 $output_rules .= &file_contents ('mans',
3345 new Automake::Location,
3346 SECTION => $section);
3349 my @mans = sort keys %vlist;
3350 $output_vars .= file_contents ('mans-vars',
3351 new Automake::Location,
3354 push (@all, '$(MANS)')
3355 unless option 'no-installman';
3358 # Handle DATA variables.
3361 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3362 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3363 'sysconf', 'sharedstate', 'localstate',
3364 'pkgdata', 'lisp', 'noinst', 'check');
3372 if (var ('SUBDIRS'))
3374 $output_rules .= ("tags-recursive:\n"
3375 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3376 # Never fail here if a subdir fails; it
3378 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3379 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3381 push (@tag_deps, 'tags-recursive');
3382 &depend ('.PHONY', 'tags-recursive');
3384 $output_rules .= ("ctags-recursive:\n"
3385 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3386 # Never fail here if a subdir fails; it
3388 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3389 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3391 push (@ctag_deps, 'ctags-recursive');
3392 &depend ('.PHONY', 'ctags-recursive');
3395 if (&saw_sources_p (1)
3396 || var ('ETAGS_ARGS')
3400 foreach my $spec (@config_headers)
3402 my ($out, @ins) = split_config_file_spec ($spec);
3403 foreach my $in (@ins)
3405 # If the config header source is in this directory,
3407 push @config, basename ($in)
3408 if $relative_dir eq dirname ($in);
3411 $output_rules .= &file_contents ('tags',
3412 new Automake::Location,
3413 CONFIG => "@config",
3414 TAGSDIRS => "@tag_deps",
3415 CTAGSDIRS => "@ctag_deps");
3417 set_seen 'TAGS_DEPENDENCIES';
3419 elsif (reject_var ('TAGS_DEPENDENCIES',
3420 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3421 . "without\nsources or `ETAGS_ARGS'"))
3426 # Every Makefile must define some sort of TAGS rule.
3427 # Otherwise, it would be possible for a top-level "make TAGS"
3428 # to fail because some subdirectory failed.
3429 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3431 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3435 # Handle multilib support.
3438 if ($seen_multilib && $relative_dir eq '.')
3440 $output_rules .= &file_contents ('multilib', new Automake::Location);
3441 push (@all, 'all-multi');
3446 # user_phony_rule ($NAME)
3447 # -----------------------
3448 # Return false if rule $NAME does not exist. Otherwise,
3449 # declare it as phony, complete its definition (in case it is
3450 # conditional), and return its Automake::Rule instance.
3451 sub user_phony_rule ($)
3454 my $rule = rule $name;
3457 depend ('.PHONY', $name);
3458 # Define $NAME in all condition where it is not already defined,
3459 # so that it is always OK to depend on $NAME.
3460 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3462 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3464 $output_rules .= $c->subst_string . "$name:\n";
3472 # &for_dist_common ($A, $B)
3473 # -------------------------
3474 # Subroutine for &handle_dist: sort files to dist.
3476 # We put README first because it then becomes easier to make a
3477 # Usenet-compliant shar file (in these, README must be first).
3479 # FIXME: do more ordering of files here.
3491 # fill_dist_dirs(@FILES)
3492 # ----------------------
3493 # Record in %dist_dirs the directory part of any file passed.
3494 sub fill_dist_dirs (@)
3499 s/\$\(top_srcdir\)/$topsrcdir/;
3501 # Strip any leading `./'.
3503 next unless s,/+[^/]+$,,;
3511 # Handle 'dist' target.
3514 # Substutions for distdit.am
3517 # Define DIST_SUBDIRS. This must always be done, regardless of the
3518 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3519 my $subdirs = var ('SUBDIRS');
3522 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3523 # to all possible directories, and use it. If DIST_SUBDIRS is
3524 # defined, just use it.
3526 # Note that we check DIST_SUBDIRS first on purpose, so that
3527 # we don't call has_conditional_contents for now reason.
3528 # (In the past one project used so many conditional subdirectories
3529 # that calling has_conditional_contents on SUBDIRS caused
3530 # automake to grow to 150Mb -- this should not happen with
3531 # the current implementation of has_conditional_contents,
3532 # but it's more efficient to avoid the call anyway.)
3533 if (var ('DIST_SUBDIRS'))
3536 elsif ($subdirs->has_conditional_contents)
3538 define_pretty_variable
3539 ('DIST_SUBDIRS', TRUE, INTERNAL,
3540 uniq ($subdirs->value_as_list_recursive));
3544 # We always define this because that is what `distclean'
3546 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3551 # The remaining definitions are only required when a dist target is used.
3552 return if option 'no-dist';
3554 # At least one of the archive formats must be enabled.
3555 if ($relative_dir eq '.')
3557 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3558 $archive_defined ||=
3559 grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
3560 error (option 'no-dist-gzip',
3561 "no-dist-gzip specified but no dist-* specified, "
3562 . "at least one archive format must be enabled")
3563 unless $archive_defined;
3566 # Look for common files that should be included in distribution.
3567 # If the aux dir is set, and it does not have a Makefile.am, then
3568 # we check for these files there as well.
3570 if ($relative_dir eq '.'
3571 && $config_aux_dir_set_in_configure_ac)
3573 if (! &is_make_dir ($config_aux_dir))
3578 foreach my $cfile (@common_files)
3580 if (dir_has_case_matching_file ($relative_dir, $cfile)
3581 # The file might be absent, but if it can be built it's ok.
3584 &push_dist_common ($cfile);
3587 # Don't use `elsif' here because a file might meaningfully
3588 # appear in both directories.
3589 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3591 &push_dist_common ("$config_aux_dir/$cfile")
3595 # We might copy elements from $configure_dist_common to
3596 # %dist_common if we think we need to. If the file appears in our
3597 # directory, we would have discovered it already, so we don't
3598 # check that. But if the file is in a subdir without a Makefile,
3599 # we want to distribute it here if we are doing `.'. Ugly!
3600 if ($relative_dir eq '.')
3602 foreach my $file (split (' ' , $configure_dist_common))
3604 push_dist_common ($file)
3605 unless is_make_dir (dirname ($file));
3609 # Files to distributed. Don't use ->value_as_list_recursive
3610 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3611 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3612 @dist_common = uniq (sort for_dist_common (@dist_common));
3613 variable_delete 'DIST_COMMON';
3614 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3616 # Now that we've processed DIST_COMMON, disallow further attempts
3618 $handle_dist_run = 1;
3620 # Scan EXTRA_DIST to see if we need to distribute anything from a
3621 # subdir. If so, add it to the list. I didn't want to do this
3622 # originally, but there were so many requests that I finally
3624 my $extra_dist = var ('EXTRA_DIST');
3625 # FIXME: This should be fixed to work with conditions. That
3626 # will require only making the entries in %dist_dirs under the
3627 # appropriate condition. This is meaningful if the nature of
3628 # the distribution should depend upon the configure options
3630 fill_dist_dirs ($extra_dist->value_as_list_recursive (skip_ac_subst => 1))
3633 # We have to check DIST_COMMON for extra directories in case the
3634 # user put a source used in AC_OUTPUT into a subdir.
3635 fill_dist_dirs (rvar ('DIST_COMMON')
3636 ->value_as_list_recursive (skip_ac_subst => 1));
3638 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3639 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3641 # Prepend $(distdir) to each directory given.
3642 my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
3643 $transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
3645 # If the target `dist-hook' exists, make sure it is run. This
3646 # allows users to do random weird things to the distribution
3647 # before it is packaged up.
3648 push (@dist_targets, 'dist-hook')
3649 if user_phony_rule 'dist-hook';
3650 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3652 my $flm = option ('filename-length-max');
3653 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3655 $output_rules .= &file_contents ('distdir',
3656 new Automake::Location,
3658 FILENAME_FILTER => $filename_filter);
3662 # check_directory ($NAME, $WHERE)
3663 # -------------------------------
3664 # Ensure $NAME is a directory, and that it uses sane name.
3665 # Use $WHERE as a location in the diagnostic, if any.
3666 sub check_directory ($$)
3668 my ($dir, $where) = @_;
3670 error $where, "required directory $relative_dir/$dir does not exist"
3671 unless -d "$relative_dir/$dir";
3673 # If an `obj/' directory exists, BSD make will enter it before
3674 # reading `Makefile'. Hence the `Makefile' in the current directory
3680 # % cat obj/Makefile
3686 # % pmake # BSD make
3689 msg ('portability', $where,
3690 "naming a subdirectory `obj' causes troubles with BSD make")
3693 # `aux' is probably the most important of the following forbidden name,
3694 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3695 msg ('portability', $where,
3696 "name `$dir' is reserved on W32 and DOS platforms")
3697 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3700 # check_directories_in_var ($VARIABLE)
3701 # ------------------------------------
3702 # Recursively check all items in variables $VARIABLE as directories
3703 sub check_directories_in_var ($)
3706 $var->traverse_recursively
3709 my ($var, $val, $cond, $full_cond) = @_;
3710 check_directory ($val, $var->rdef ($cond)->location);
3714 skip_ac_subst => 1);
3717 # &handle_subdirs ()
3718 # ------------------
3719 # Handle subdirectories.
3720 sub handle_subdirs ()
3722 my $subdirs = var ('SUBDIRS');
3726 check_directories_in_var $subdirs;
3728 my $dsubdirs = var ('DIST_SUBDIRS');
3729 check_directories_in_var $dsubdirs
3732 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3733 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3737 # ($REGEN, @DEPENDENCIES)
3740 # If aclocal.m4 creation is automated, return the list of its dependencies.
3741 sub scan_aclocal_m4 ()
3743 my $regen_aclocal = 0;
3745 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3746 set_seen 'CONFIGURE_DEPENDENCIES';
3748 if (-f 'aclocal.m4')
3750 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3752 my $aclocal = new Automake::XFile "< aclocal.m4";
3753 my $line = $aclocal->getline;
3754 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3759 if (set_seen ('ACLOCAL_M4_SOURCES'))
3761 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3762 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3763 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3764 . "It should be safe to simply remove it.");
3767 # Note that it might be possible that aclocal.m4 doesn't exist but
3768 # should be auto-generated. This case probably isn't very
3771 return ($regen_aclocal, @ac_deps);
3775 # Helper function for substitute_ac_subst_variables.
3776 sub substitute_ac_subst_variables_worker($)
3779 return "\@$token\@" if var $token;
3780 return "\${$token\}";
3783 # substitute_ac_subst_variables ($TEXT)
3784 # -------------------------------------
3785 # Replace any occurence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3787 sub substitute_ac_subst_variables ($)
3790 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3795 # &prepend_srcdir (@INPUTS)
3796 # -------------------------
3797 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3798 # if an input file has a directory part the same as the current
3799 # directory, then the directory part is simply replaced by $(srcdir).
3800 # But if the directory part is different, then $(top_srcdir) is
3802 sub prepend_srcdir (@)
3807 foreach my $single (@inputs)
3809 if (dirname ($single) eq $relative_dir)
3811 push (@newinputs, '$(srcdir)/' . basename ($single));
3815 push (@newinputs, '$(top_srcdir)/' . $single);
3822 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3823 # ---------------------------------------------------
3824 # Compute a list of dependencies appropriate for the rebuild
3826 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3827 # Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
3828 sub rewrite_inputs_into_dependencies ($@)
3830 my ($file, @inputs) = @_;
3835 # We cannot create dependencies on shell variables.
3836 next if (substitute_ac_subst_variables $i) =~ /\$/;
3838 if (exists $ac_config_files_location{$i})
3840 my $di = dirname $i;
3841 if ($di eq $relative_dir)
3845 # In the top-level Makefile we do not use $(top_builddir), because
3846 # we are already there, and since the targets are built without
3847 # a $(top_builddir), it helps BSD Make to match them with
3849 elsif ($relative_dir ne '.')
3851 $i = '$(top_builddir)/' . $i;
3856 msg ('error', $ac_config_files_location{$file},
3857 "required file `$i' not found")
3858 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3859 ($i) = prepend_srcdir ($i);
3860 push_dist_common ($i);
3869 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3870 # ------------------------------------------------------------------
3871 # Handle remaking and configure stuff.
3872 # We need the name of the input file, to do proper remaking rules.
3873 sub handle_configure ($$$@)
3875 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
3877 prog_error 'empty @inputs'
3880 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
3882 my $rel_makefile = basename $makefile;
3884 my $colon_infile = ':' . join (':', @inputs);
3885 $colon_infile = '' if $colon_infile eq ":$makefile.in";
3886 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
3887 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
3888 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
3889 @configure_deps, @aclocal_m4_deps,
3890 '$(top_srcdir)/' . $configure_ac);
3891 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
3892 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
3893 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
3896 $output_rules .= file_contents
3898 new Automake::Location,
3899 MAKEFILE => $rel_makefile,
3900 'MAKEFILE-DEPS' => "@rewritten",
3901 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
3902 'MAKEFILE-IN' => $rel_makefile_in,
3903 'MAKEFILE-IN-DEPS' => "@include_stack",
3904 'MAKEFILE-AM' => $rel_makefile_am,
3905 STRICTNESS => global_option 'cygnus'
3906 ? 'cygnus' : $strictness_name,
3907 'USE-DEPS' => global_option 'no-dependencies'
3908 ? ' --ignore-deps' : '',
3909 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
3910 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
3912 if ($relative_dir eq '.')
3914 &push_dist_common ('acconfig.h')
3918 # If we have a configure header, require it.
3920 my @distclean_config;
3921 foreach my $spec (@config_headers)
3924 # $CONFIG_H_PATH: config.h from top level.
3925 my ($config_h_path, @ins) = split_config_file_spec ($spec);
3926 my $config_h_dir = dirname ($config_h_path);
3928 # If the header is in the current directory we want to build
3929 # the header here. Otherwise, if we're at the topmost
3930 # directory and the header's directory doesn't have a
3931 # Makefile, then we also want to build the header.
3932 if ($relative_dir eq $config_h_dir
3933 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
3935 my ($cn_sans_dir, $stamp_dir);
3936 if ($relative_dir eq $config_h_dir)
3938 $cn_sans_dir = basename ($config_h_path);
3943 $cn_sans_dir = $config_h_path;
3944 if ($config_h_dir eq '.')
3950 $stamp_dir = $config_h_dir . '/';
3954 # This will also distribute all inputs.
3955 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
3957 # Cannot define rebuild rules for filenames with shell variables.
3958 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
3960 # Header defined in this directory.
3962 if (-f $config_h_path . '.top')
3964 push (@files, "$cn_sans_dir.top");
3966 if (-f $config_h_path . '.bot')
3968 push (@files, "$cn_sans_dir.bot");
3971 push_dist_common (@files);
3973 # For now, acconfig.h can only appear in the top srcdir.
3974 if (-f 'acconfig.h')
3976 push (@files, '$(top_srcdir)/acconfig.h');
3979 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
3981 file_contents ('remake-hdr',
3982 new Automake::Location,
3984 CONFIG_H => $cn_sans_dir,
3985 CONFIG_HIN => $ins[0],
3986 CONFIG_H_DEPS => "@ins",
3987 CONFIG_H_PATH => $config_h_path,
3990 push @distclean_config, $cn_sans_dir, $stamp;
3994 $output_rules .= file_contents ('clean-hdr',
3995 new Automake::Location,
3996 FILES => "@distclean_config")
3997 if @distclean_config;
3999 # Distribute and define mkinstalldirs only if it is already present
4000 # in the package, for backward compatibility (some people may still
4001 # use $(mkinstalldirs)).
4002 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4005 # Use require_file so that any existing script gets updated
4006 # by --force-missing.
4007 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4008 define_variable ('mkinstalldirs',
4009 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4013 # Use $(install_sh), not $(mkdir_p) because the latter requires
4014 # at least one argument, and $(mkinstalldirs) used to work
4015 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4016 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4019 reject_var ('CONFIG_HEADER',
4020 "`CONFIG_HEADER' is an anachronism; now determined "
4021 . "automatically\nfrom `$configure_ac'");
4024 foreach my $spec (@config_headers)
4026 my ($out, @ins) = split_config_file_spec ($spec);
4027 # Generate CONFIG_HEADER define.
4028 if ($relative_dir eq dirname ($out))
4030 push @config_h, basename ($out);
4034 push @config_h, "\$(top_builddir)/$out";
4037 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4040 # Now look for other files in this directory which must be remade
4041 # by config.status, and generate rules for them.
4042 my @actual_other_files = ();
4043 foreach my $lfile (@other_input_files)
4047 if ($lfile =~ /^([^:]*):(.*)$/)
4049 # This is the ":" syntax of AC_OUTPUT.
4051 @inputs = split (':', $2);
4057 @inputs = $file . '.in';
4060 # Automake files should not be stored in here, but in %MAKE_LIST.
4061 prog_error ("$lfile in \@other_input_files\n"
4062 . "\@other_input_files = (@other_input_files)")
4063 if -f $file . '.am';
4065 my $local = basename ($file);
4067 # Make sure the dist directory for each input file is created.
4068 # We only have to do this at the topmost level though. This
4069 # is a bit ugly but it easier than spreading out the logic,
4070 # especially in cases like AC_OUTPUT(foo/out:bar/in), where
4071 # there is no Makefile in bar/.
4072 fill_dist_dirs (@inputs)
4073 if $relative_dir eq '.';
4075 # We skip files that aren't in this directory. However, if
4076 # the file's directory does not have a Makefile, and we are
4077 # currently doing `.', then we create a rule to rebuild the
4078 # file in the subdir.
4079 my $fd = dirname ($file);
4080 if ($fd ne $relative_dir)
4082 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4092 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4094 # Cannot output rules for shell variables.
4095 next if (substitute_ac_subst_variables $local) =~ /\$/;
4097 $output_rules .= ($local . ': '
4098 . '$(top_builddir)/config.status '
4099 . "@rewritten_inputs\n"
4101 . 'cd $(top_builddir) && '
4102 . '$(SHELL) ./config.status '
4103 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4106 push (@actual_other_files, $local);
4109 # For links we should clean destinations and distribute sources.
4110 foreach my $spec (@config_links)
4112 my ($link, $file) = split /:/, $spec;
4113 # Some people do AC_CONFIG_LINKS($computed). We only handle
4114 # the DEST:SRC form.
4116 my $where = $ac_config_files_location{$link};
4118 # Skip destinations that contain shell variables.
4119 if ((substitute_ac_subst_variables $link) !~ /\$/)
4121 # We skip links that aren't in this directory. However, if
4122 # the link's directory does not have a Makefile, and we are
4123 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4124 # in `.'s Makefile.in.
4125 my $local = basename ($link);
4126 my $fd = dirname ($link);
4127 if ($fd ne $relative_dir)
4129 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4138 push @actual_other_files, $local if $local;
4141 # Do not process sources that contain shell variables.
4142 if ((substitute_ac_subst_variables $file) !~ /\$/)
4144 my $fd = dirname ($file);
4146 # Make sure the dist directory for each input file is created.
4147 # We only have to do this at the topmost level though.
4148 if ($relative_dir eq '.')
4150 $dist_dirs{$fd} = 1;
4153 # We distribute files that are in this directory.
4154 # At the top-level (`.') we also distribute files whose
4155 # directory does not have a Makefile.
4156 if (($fd eq $relative_dir)
4157 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4159 # The following will distribute $file as a side-effect when
4160 # it is appropriate (i.e., when $file is not already an output).
4161 # We do not need the result, just the side-effect.
4162 rewrite_inputs_into_dependencies ($link, $file);
4167 # These files get removed by "make distclean".
4168 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4169 @actual_other_files);
4175 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4176 'oldinclude', 'pkginclude',
4180 next unless $_->[1] =~ /\..*$/;
4181 &saw_extension ($&);
4187 return if ! $seen_gettext || $relative_dir ne '.';
4189 my $subdirs = var 'SUBDIRS';
4193 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4197 # Perform some sanity checks to help users get the right setup.
4198 # We disable these tests when po/ doesn't exist in order not to disallow
4199 # unusual gettext setups.
4204 # | 1) If a package doesn't have a directory po/ at top level, it
4205 # | will likely have multiple po/ directories in subpackages.
4207 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4208 # | is used without 'external'. It is also useful to warn for the
4209 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4210 # | warnings apply only to the usual layout of packages, therefore
4211 # | they should both be disabled if no po/ directory is found at
4216 my @subdirs = $subdirs->value_as_list_recursive;
4218 msg_var ('syntax', $subdirs,
4219 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4220 if ! grep ($_ eq 'po', @subdirs);
4222 # intl/ is not required when AM_GNU_GETTEXT is called with
4223 # the `external' option.
4224 msg_var ('syntax', $subdirs,
4225 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4226 if (! $seen_gettext_external
4227 && ! grep ($_ eq 'intl', @subdirs));
4229 # intl/ should not be used with AM_GNU_GETTEXT([external])
4230 msg_var ('syntax', $subdirs,
4231 "`intl' should not be in SUBDIRS when "
4232 . "AM_GNU_GETTEXT([external]) is used")
4233 if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
4236 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4239 # Handle footer elements.
4242 reject_rule ('.SUFFIXES',
4243 "use variable `SUFFIXES', not target `.SUFFIXES'");
4245 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4246 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4247 # anything else, by sticking it right after the default: target.
4248 $output_header .= ".SUFFIXES:\n";
4249 my $suffixes = var 'SUFFIXES';
4250 my @suffixes = Automake::Rule::suffixes;
4251 if (@suffixes || $suffixes)
4253 # Make sure SUFFIXES has unique elements. Sort them to ensure
4254 # the output remains consistent. However, $(SUFFIXES) is
4255 # always at the start of the list, unsorted. This is done
4256 # because make will choose rules depending on the ordering of
4257 # suffixes, and this lets the user have some control. Push
4258 # actual suffixes, and not $(SUFFIXES). Some versions of make
4259 # do not like variable substitutions on the .SUFFIXES line.
4260 my @user_suffixes = ($suffixes
4261 ? $suffixes->value_as_list_recursive : ());
4263 my %suffixes = map { $_ => 1 } @suffixes;
4264 delete @suffixes{@user_suffixes};
4266 $output_header .= (".SUFFIXES: "
4267 . join (' ', @user_suffixes, sort keys %suffixes)
4271 $output_trailer .= file_contents ('footer', new Automake::Location);
4275 # Generate `make install' rules.
4276 sub handle_install ()
4278 $output_rules .= &file_contents
4280 new Automake::Location,
4281 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4282 ? (" \$(BUILT_SOURCES)\n"
4283 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4285 'installdirs-local' => (user_phony_rule 'installdirs-local'
4286 ? ' installdirs-local' : ''),
4287 am__installdirs => variable_value ('am__installdirs') || '');
4291 # Deal with all and all-am.
4294 my ($makefile) = @_;
4298 # Put this at the beginning for the sake of non-GNU makes. This
4299 # is still wrong if these makes can run parallel jobs. But it is
4301 unshift (@all, basename ($makefile));
4303 foreach my $spec (@config_headers)
4305 my ($out, @ins) = split_config_file_spec ($spec);
4306 push (@all, basename ($out))
4307 if dirname ($out) eq $relative_dir;
4310 # Install `all' hooks.
4311 push (@all, "all-local")
4312 if user_phony_rule "all-local";
4314 &pretty_print_rule ("all-am:", "\t\t", @all);
4315 &depend ('.PHONY', 'all-am', 'all');
4320 my @local_headers = ();
4321 push @local_headers, '$(BUILT_SOURCES)'
4322 if var ('BUILT_SOURCES');
4323 foreach my $spec (@config_headers)
4325 my ($out, @ins) = split_config_file_spec ($spec);
4326 push @local_headers, basename ($out)
4327 if dirname ($out) eq $relative_dir;
4332 # We need to make sure config.h is built before we recurse.
4333 # We also want to make sure that built sources are built
4334 # before any ordinary `all' targets are run. We can't do this
4335 # by changing the order of dependencies to the "all" because
4336 # that breaks when using parallel makes. Instead we handle
4337 # things explicitly.
4338 $output_all .= ("all: @local_headers"
4340 . '$(MAKE) $(AM_MAKEFLAGS) '
4341 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4346 $output_all .= "all: " . (var ('SUBDIRS')
4347 ? 'all-recursive' : 'all-am') . "\n\n";
4352 # &do_check_merge_target ()
4353 # -------------------------
4354 # Handle check merge target specially.
4355 sub do_check_merge_target ()
4357 # Include user-defined local form of target.
4358 push @check_tests, 'check-local'
4359 if user_phony_rule 'check-local';
4361 # In --cygnus mode, check doesn't depend on all.
4362 if (option 'cygnus')
4364 # Just run the local check rules.
4365 pretty_print_rule ('check-am:', "\t\t", @check);
4369 # The check target must depend on the local equivalent of
4370 # `all', to ensure all the primary targets are built. Then it
4371 # must build the local check rules.
4372 $output_rules .= "check-am: all-am\n";
4373 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4377 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4381 depend '.PHONY', 'check', 'check-am';
4382 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4383 $output_rules .= ("check: "
4384 . (var ('BUILT_SOURCES')
4385 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4387 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4391 # handle_clean ($MAKEFILE)
4392 # ------------------------
4393 # Handle all 'clean' targets.
4394 sub handle_clean ($)
4396 my ($makefile) = @_;
4398 # Clean the files listed in user variables if they exist.
4399 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4400 if var ('MOSTLYCLEANFILES');
4401 $clean_files{'$(CLEANFILES)'} = CLEAN
4402 if var ('CLEANFILES');
4403 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4404 if var ('DISTCLEANFILES');
4405 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4406 if var ('MAINTAINERCLEANFILES');
4408 # Built sources are automatically removed by maintainer-clean.
4409 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4410 if var ('BUILT_SOURCES');
4412 # Compute a list of "rm"s to run for each target.
4413 my %rms = (MOSTLY_CLEAN, [],
4416 MAINTAINER_CLEAN, []);
4418 foreach my $file (keys %clean_files)
4420 my $when = $clean_files{$file};
4421 prog_error 'invalid entry in %clean_files'
4422 unless exists $rms{$when};
4424 my $rm = "rm -f $file";
4425 # If file is a variable, make sure when don't call `rm -f' without args.
4426 $rm ="test -z \"$file\" || $rm"
4427 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4429 push @{$rms{$when}}, "\t-$rm\n";
4432 $output_rules .= &file_contents
4434 new Automake::Location,
4435 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4436 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4437 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4438 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4439 MAKEFILE => basename $makefile,
4444 # &target_cmp ($A, $B)
4445 # --------------------
4446 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4447 # other `.TARGETS' be last.
4450 return 0 if $a eq $b;
4452 my $a1 = substr ($a, 0, 1);
4453 my $b1 = substr ($b, 0, 1);
4456 return -1 if $b1 eq '.';
4457 return 1 if $a1 eq '.';
4463 # &handle_factored_dependencies ()
4464 # --------------------------------
4465 # Handle everything related to gathered targets.
4466 sub handle_factored_dependencies
4469 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4470 'uninstall-exec-local', 'uninstall-exec-hook',
4471 'uninstall-dvi-local',
4472 'uninstall-html-local',
4473 'uninstall-info-local',
4474 'uninstall-pdf-local',
4475 'uninstall-ps-local')
4479 reject_rule ($utarg, "use `$x', not `$utarg'");
4482 reject_rule ('install-local',
4483 "use `install-data-local' or `install-exec-local', "
4484 . "not `install-local'");
4486 reject_rule ('install-hook',
4487 "use `install-data-hook' or `install-exec-hook', "
4488 . "not `install-hook'");
4490 # Install the -local hooks.
4491 foreach (keys %dependencies)
4493 # Hooks are installed on the -am targets.
4495 depend ("$_-am", "$_-local")
4496 if user_phony_rule "$_-local";
4499 # Install the -hook hooks.
4500 # FIXME: Why not be as liberal as we are with -local hooks?
4501 foreach ('install-exec', 'install-data', 'uninstall')
4503 if (user_phony_rule "$_-hook")
4505 $actions{"$_-am"} .=
4506 ("\t\@\$(NORMAL_INSTALL)\n"
4507 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4508 depend ('.MAKE', "$_-am");
4512 # All the required targets are phony.
4513 depend ('.PHONY', keys %required_targets);
4515 # Actually output gathered targets.
4516 foreach (sort target_cmp keys %dependencies)
4518 # If there is nothing about this guy, skip it.
4520 unless (@{$dependencies{$_}}
4522 || $required_targets{$_});
4524 # Define gathered targets in undefined conditions.
4525 # FIXME: Right now we must handle .PHONY as an exception,
4526 # because people write things like
4527 # .PHONY: myphonytarget
4528 # to append dependencies. This would not work if Automake
4529 # refrained from defining its own .PHONY target as it does
4530 # with other overridden targets.
4531 # Likewise for `.MAKE'.
4532 my @undefined_conds = (TRUE,);
4533 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4536 Automake::Rule::define ($_, 'internal',
4537 RULE_AUTOMAKE, TRUE, INTERNAL);
4539 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4540 foreach my $cond (@undefined_conds)
4542 my $condstr = $cond->subst_string;
4543 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4544 $output_rules .= $actions{$_} if defined $actions{$_};
4545 $output_rules .= "\n";
4551 # &handle_tests_dejagnu ()
4552 # ------------------------
4553 sub handle_tests_dejagnu
4555 push (@check_tests, 'check-DEJAGNU');
4556 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4560 # Handle TESTS variable and other checks.
4563 if (option 'dejagnu')
4565 &handle_tests_dejagnu;
4569 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4571 reject_var ($c, "`$c' defined but `dejagnu' not in "
4572 . "`AUTOMAKE_OPTIONS'");
4578 push (@check_tests, 'check-TESTS');
4579 $output_rules .= &file_contents ('check', new Automake::Location);
4583 # Handle Emacs Lisp.
4584 sub handle_emacs_lisp
4586 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4589 return if ! @elfiles;
4591 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4592 map { $_->[1] } @elfiles);
4593 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4594 '$(am__ELFILES:.el=.elc)');
4595 # This one can be overridden by users.
4596 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4598 push @all, '$(ELCFILES)';
4600 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4601 'EMACS', 'lispdir');
4602 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4603 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4609 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4611 return if ! @pyfiles;
4613 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4614 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4615 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4621 my @sourcelist = &am_install_var ('-candist',
4623 'java', 'noinst', 'check');
4624 return if ! @sourcelist;
4626 my @prefix = am_primary_prefixes ('JAVA', 1,
4627 'java', 'noinst', 'check');
4630 foreach my $curs (@prefix)
4633 if $curs eq 'EXTRA';
4635 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4641 push (@all, 'class' . $dir . '.stamp');
4645 # Handle some of the minor options.
4646 sub handle_minor_options
4648 if (option 'readme-alpha')
4650 if ($relative_dir eq '.')
4652 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4654 msg ('error-gnits', $package_version_location,
4655 "version `$package_version' doesn't follow " .
4658 if (defined $1 && -f 'README-alpha')
4660 # This means we have an alpha release. See
4661 # GNITS_VERSION_PATTERN for details.
4662 push_dist_common ('README-alpha');
4668 ################################################################
4670 # ($OUTPUT, @INPUTS)
4671 # &split_config_file_spec ($SPEC)
4672 # -------------------------------
4673 # Decode the Autoconf syntax for config files (files, headers, links
4675 sub split_config_file_spec ($)
4678 my ($output, @inputs) = split (/:/, $spec);
4680 push @inputs, "$output.in"
4683 return ($output, @inputs);
4687 # locate_am (@POSSIBLE_SOURCES)
4688 # -----------------------------
4689 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4690 # This functions returns the first *.in file for which a *.am exists.
4691 # It returns undef otherwise.
4696 foreach my $file (@rest)
4698 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4709 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4710 # ---------------------------------------------------
4711 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4713 sub scan_autoconf_config_files ($$)
4715 my ($where, $config_files) = @_;
4717 # Look at potential Makefile.am's.
4718 foreach (split ' ', $config_files)
4720 # Must skip empty string for Perl 4.
4721 next if $_ eq "\\" || $_ eq '';
4723 # Handle $local:$input syntax.
4724 my ($local, @rest) = split (/:/);
4725 @rest = ("$local.in",) unless @rest;
4726 my $input = locate_am @rest;
4729 # We have a file that automake should generate.
4730 $make_list{$input} = join (':', ($local, @rest));
4734 # We have a file that automake should cause to be
4735 # rebuilt, but shouldn't generate itself.
4736 push (@other_input_files, $_);
4738 $ac_config_files_location{$local} = $where;
4743 # &scan_autoconf_traces ($FILENAME)
4744 # ---------------------------------
4745 sub scan_autoconf_traces ($)
4747 my ($filename) = @_;
4749 # Macros to trace, with their minimal number of arguments.
4751 # IMPORTANT: If you add a macro here, you should also add this macro
4752 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
4754 AC_CANONICAL_BUILD => 0,
4755 AC_CANONICAL_HOST => 0,
4756 AC_CANONICAL_TARGET => 0,
4757 AC_CONFIG_AUX_DIR => 1,
4758 AC_CONFIG_FILES => 1,
4759 AC_CONFIG_HEADERS => 1,
4760 AC_CONFIG_LIBOBJ_DIR => 1,
4761 AC_CONFIG_LINKS => 1,
4764 AC_REQUIRE_AUX_FILE => 1,
4765 AC_SUBST_TRACE => 1,
4766 AM_AUTOMAKE_VERSION => 1,
4767 AM_CONDITIONAL => 2,
4768 AM_ENABLE_MULTILIB => 0,
4769 AM_GNU_GETTEXT => 0,
4770 AM_INIT_AUTOMAKE => 0,
4771 AM_MAINTAINER_MODE => 0,
4772 AM_PROG_CC_C_O => 0,
4773 LT_SUPPORTED_TAG => 1,
4774 _LT_AC_TAGCONFIG => 0,
4780 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4782 # Use a separator unlikely to be used, not `:', the default, which
4783 # has a precise meaning for AC_CONFIG_FILES and so on.
4784 $traces .= join (' ',
4785 map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
4788 my $tracefh = new Automake::XFile ("$traces $filename |");
4789 verb "reading $traces";
4791 while ($_ = $tracefh->getline)
4794 my ($here, @args) = split (/::/);
4795 my $where = new Automake::Location $here;
4796 my $macro = $args[0];
4798 prog_error ("unrequested trace `$macro'")
4799 unless exists $traced{$macro};
4801 # Skip and diagnose malformed calls.
4802 if ($#args < $traced{$macro})
4804 msg ('syntax', $where, "not enough arguments for $macro");
4808 # Alphabetical ordering please.
4809 if ($macro eq 'AC_CANONICAL_BUILD')
4811 if ($seen_canonical <= AC_CANONICAL_BUILD)
4813 $seen_canonical = AC_CANONICAL_BUILD;
4814 $canonical_location = $where;
4817 elsif ($macro eq 'AC_CANONICAL_HOST')
4819 if ($seen_canonical <= AC_CANONICAL_HOST)
4821 $seen_canonical = AC_CANONICAL_HOST;
4822 $canonical_location = $where;
4825 elsif ($macro eq 'AC_CANONICAL_TARGET')
4827 $seen_canonical = AC_CANONICAL_TARGET;
4828 $canonical_location = $where;
4830 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4832 if ($seen_init_automake)
4834 error ($where, "AC_CONFIG_AUX_DIR must be called before "
4835 . "AM_INIT_AUTOMAKE...", partial => 1);
4836 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
4838 $config_aux_dir = $args[1];
4839 $config_aux_dir_set_in_configure_ac = 1;
4840 $relative_dir = '.';
4841 check_directory ($config_aux_dir, $where);
4843 elsif ($macro eq 'AC_CONFIG_FILES')
4845 # Look at potential Makefile.am's.
4846 scan_autoconf_config_files ($where, $args[1]);
4848 elsif ($macro eq 'AC_CONFIG_HEADERS')
4850 foreach my $spec (split (' ', $args[1]))
4852 my ($dest, @src) = split (':', $spec);
4853 $ac_config_files_location{$dest} = $where;
4854 push @config_headers, $spec;
4857 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
4859 $config_libobj_dir = $args[1];
4860 $relative_dir = '.';
4861 check_directory ($config_libobj_dir, $where);
4863 elsif ($macro eq 'AC_CONFIG_LINKS')
4865 foreach my $spec (split (' ', $args[1]))
4867 my ($dest, $src) = split (':', $spec);
4868 $ac_config_files_location{$dest} = $where;
4869 push @config_links, $spec;
4872 elsif ($macro eq 'AC_INIT')
4874 if (defined $args[2])
4876 $package_version = $args[2];
4877 $package_version_location = $where;
4880 elsif ($macro eq 'AC_LIBSOURCE')
4882 $libsources{$args[1]} = $here;
4884 elsif ($macro eq 'AC_SUBST_TRACE')
4886 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
4887 # AC_SUBST(5), then too bad.
4888 $configure_vars{$args[1]} = $where
4889 if $args[1] =~ /^\w+$/;
4891 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
4894 "version mismatch. This is Automake $VERSION,\n" .
4895 "but the definition used by this AM_INIT_AUTOMAKE\n" .
4896 "comes from Automake $args[1]. You should recreate\n" .
4897 "aclocal.m4 with aclocal and run automake again.\n",
4898 # $? = 63 is used to indicate version mismatch to missing.
4900 if $VERSION ne $args[1];
4902 $seen_automake_version = 1;
4904 elsif ($macro eq 'AM_CONDITIONAL')
4906 $configure_cond{$args[1]} = $where;
4908 elsif ($macro eq 'AM_ENABLE_MULTILIB')
4910 $seen_multilib = $where;
4912 elsif ($macro eq 'AM_GNU_GETTEXT')
4914 $seen_gettext = $where;
4915 $ac_gettext_location = $where;
4916 $seen_gettext_external = grep ($_ eq 'external', @args);
4918 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4920 $seen_init_automake = $where;
4921 if (defined $args[2])
4923 $package_version = $args[2];
4924 $package_version_location = $where;
4926 elsif (defined $args[1])
4929 if (process_global_option_list ($where,
4930 split (' ', $args[1])));
4933 elsif ($macro eq 'AM_MAINTAINER_MODE')
4935 $seen_maint_mode = $where;
4937 elsif ($macro eq 'AM_PROG_CC_C_O')
4939 $seen_cc_c_o = $where;
4941 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
4943 # Only remember the first time a file is required.
4944 $required_aux_file{$args[1]} = $where
4945 unless exists $required_aux_file{$args[1]};
4947 elsif ($macro eq 'm4_include'
4948 || $macro eq 'm4_sinclude'
4949 || $macro eq 'sinclude')
4951 # Skip missing `sinclude'd files.
4952 next if $macro ne 'm4_include' && ! -f $args[1];
4954 # Some modified versions of Autoconf don't use
4955 # forzen files. Consequently it's possible that we see all
4956 # m4_include's performed during Autoconf's startup.
4957 # Obviously we don't want to distribute Autoconf's files
4958 # so we skip absolute filenames here.
4959 push @configure_deps, '$(top_srcdir)/' . $args[1]
4960 unless $here =~ m,^(?:\w:)?[\\/],;
4961 # Keep track of the greatest timestamp.
4964 my $mtime = mtime $args[1];
4965 $configure_deps_greatest_timestamp = $mtime
4966 if $mtime > $configure_deps_greatest_timestamp;
4969 elsif ($macro eq 'LT_SUPPORTED_TAG')
4971 $libtool_tags{$args[1]} = 1;
4972 $libtool_new_api = 1;
4974 elsif ($macro eq '_LT_AC_TAGCONFIG')
4976 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
4977 # We use it to detect whether tags are supported. Our
4978 # prefered interface is LT_SUPPORTED_TAG, but it was
4979 # introduced in Libtool 1.6.
4980 if (0 == keys %libtool_tags)
4982 # Hardcode the tags supported by Libtool 1.5.
4983 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
4992 # &scan_autoconf_files ()
4993 # -----------------------
4994 # Check whether we use `configure.ac' or `configure.in'.
4995 # Scan it (and possibly `aclocal.m4') for interesting things.
4996 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
4997 sub scan_autoconf_files ()
4999 # Reinitialize libsources here. This isn't really necessary,
5000 # since we currently assume there is only one configure.ac. But
5001 # that won't always be the case.
5004 # Keep track of the youngest configure dependency.
5005 $configure_deps_greatest_timestamp = mtime $configure_ac;
5006 if (-e 'aclocal.m4')
5008 my $mtime = mtime 'aclocal.m4';
5009 $configure_deps_greatest_timestamp = $mtime
5010 if $mtime > $configure_deps_greatest_timestamp;
5013 scan_autoconf_traces ($configure_ac);
5015 @configure_input_files = sort keys %make_list;
5016 # Set input and output files if not specified by user.
5019 @input_files = @configure_input_files;
5020 %output_files = %make_list;
5024 if (! $seen_init_automake)
5026 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5027 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5028 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5029 . "and that aclocal.m4 was recently regenerated "
5030 . "(using aclocal).");
5034 if (! $seen_automake_version)
5036 if (-f 'aclocal.m4')
5038 error ($seen_init_automake,
5039 "your implementation of AM_INIT_AUTOMAKE comes from " .
5040 "an\nold Automake version. You should recreate " .
5041 "aclocal.m4\nwith aclocal and run automake again.\n",
5042 # $? = 63 is used to indicate version mismatch to missing.
5047 error ($seen_init_automake,
5048 "no proper implementation of AM_INIT_AUTOMAKE was " .
5049 "found,\nprobably because aclocal.m4 is missing...\n" .
5050 "You should run aclocal to create this file, then\n" .
5051 "run automake again.\n");
5058 # Reorder @input_files so that the Makefile that distributes aux
5059 # files is processed last. This is important because each directory
5060 # can require auxiliary scripts and we should wait until they have
5061 # been installed before distributing them.
5063 # The Makefile.in that distribute the aux files is the one in
5064 # $config_aux_dir or the top-level Makefile.
5065 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5066 my @new_input_files = ();
5067 while (@input_files)
5069 my $in = pop @input_files;
5070 my @ins = split (/:/, $output_files{$in});
5071 if (dirname ($ins[0]) eq $auxdirdist)
5073 push @new_input_files, $in;
5074 $automake_will_process_aux_dir = 1;
5078 unshift @new_input_files, $in;
5081 @input_files = @new_input_files;
5083 # If neither the auxdir/Makefile nor the ./Makefile are generated
5084 # by Automake, we won't distribute the aux files anyway. Assume
5085 # the user know what (s)he does, and pretend we will distribute
5086 # them to disable the error in require_file_internal.
5087 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5089 # Look for some files we need. Always check for these. This
5090 # check must be done for every run, even those where we are only
5091 # looking at a subdir Makefile. We must set relative_dir for
5092 # maybe_push_required_file to work.
5093 $relative_dir = '.';
5094 foreach my $file (keys %required_aux_file)
5096 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5098 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5099 if -f $config_aux_dir . '/install.sh';
5101 # Preserve dist_common for later.
5102 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5106 ################################################################
5108 # Set up for Cygnus mode.
5111 my $cygnus = option 'cygnus';
5112 return unless $cygnus;
5114 set_strictness ('foreign');
5115 set_option ('no-installinfo', $cygnus);
5116 set_option ('no-dependencies', $cygnus);
5117 set_option ('no-dist', $cygnus);
5119 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5120 if !$seen_maint_mode;
5123 # Do any extra checking for GNU standards.
5124 sub check_gnu_standards
5126 if ($relative_dir eq '.')
5128 # In top level (or only) directory.
5129 require_file ("$am_file.am", GNU,
5130 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5132 # Accept one of these three licenses; default to COPYING.
5133 # Make sure we do not overwrite an existing license.
5135 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5143 require_file ("$am_file.am", GNU, 'COPYING')
5147 for my $opt ('no-installman', 'no-installinfo')
5149 msg ('error-gnu', option $opt,
5150 "option `$opt' disallowed by GNU standards")
5155 # Do any extra checking for GNITS standards.
5156 sub check_gnits_standards
5158 if ($relative_dir eq '.')
5160 # In top level (or only) directory.
5161 require_file ("$am_file.am", GNITS, 'THANKS');
5165 ################################################################
5167 # Functions to handle files of each language.
5169 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5170 # simple formula: Return value is LANG_SUBDIR if the resulting object
5171 # file should be in a subdir if the source file is, LANG_PROCESS if
5172 # file is to be dealt with, LANG_IGNORE otherwise.
5174 # Much of the actual processing is handled in
5175 # handle_single_transform. These functions exist so that
5176 # auxiliary information can be recorded for a later cleanup pass.
5177 # Note that the calls to these functions are computed, so don't bother
5178 # searching for their precise names in the source.
5180 # This is just a convenience function that can be used to determine
5181 # when a subdir object should be used.
5184 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5187 # Rewrite a single C source file.
5190 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5192 if (option 'ansi2knr' && $base =~ /_$/)
5194 # FIXME: include line number in error.
5195 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5198 my $r = LANG_PROCESS;
5199 if (option 'subdir-objects')
5202 if ($directory && $directory ne '.')
5204 $base = $directory . '/' . $base;
5206 # libtool is always able to put the object at the proper place,
5207 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5208 err_var ($var, "compiling `$base.c' in subdir requires "
5209 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5210 uniq_scope => US_GLOBAL,
5211 uniq_part => 'AM_PROG_CC_C_O subdir')
5212 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5215 # In this case we already have the directory information, so
5216 # don't add it again.
5217 $de_ansi_files{$base} = '';
5221 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5227 && $have_per_exec_flags
5228 && ! option 'subdir-objects'
5229 && $nonansi_obj ne '.lo')
5231 err_var ($var, "compiling `$base.c' with per-target flags requires "
5232 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5233 uniq_scope => US_GLOBAL,
5234 uniq_part => 'AM_PROG_CC_C_O per-target')
5240 # Rewrite a single C++ source file.
5241 sub lang_cxx_rewrite
5243 return &lang_sub_obj;
5246 # Rewrite a single header file.
5247 sub lang_header_rewrite
5249 # Header files are simply ignored.
5253 # Rewrite a single yacc file.
5254 sub lang_yacc_rewrite
5256 my ($directory, $base, $ext) = @_;
5258 my $r = &lang_sub_obj;
5259 (my $newext = $ext) =~ tr/y/c/;
5260 return ($r, $newext);
5263 # Rewrite a single yacc++ file.
5264 sub lang_yaccxx_rewrite
5266 my ($directory, $base, $ext) = @_;
5268 my $r = &lang_sub_obj;
5269 (my $newext = $ext) =~ tr/y/c/;
5270 return ($r, $newext);
5273 # Rewrite a single lex file.
5274 sub lang_lex_rewrite
5276 my ($directory, $base, $ext) = @_;
5278 my $r = &lang_sub_obj;
5279 (my $newext = $ext) =~ tr/l/c/;
5280 return ($r, $newext);
5283 # Rewrite a single lex++ file.
5284 sub lang_lexxx_rewrite
5286 my ($directory, $base, $ext) = @_;
5288 my $r = &lang_sub_obj;
5289 (my $newext = $ext) =~ tr/l/c/;
5290 return ($r, $newext);
5293 # Rewrite a single assembly file.
5294 sub lang_asm_rewrite
5296 return &lang_sub_obj;
5299 # Rewrite a single preprocessed assembly file.
5300 sub lang_cppasm_rewrite
5302 return &lang_sub_obj;
5305 # Rewrite a single Fortran 77 file.
5306 sub lang_f77_rewrite
5308 return LANG_PROCESS;
5311 # Rewrite a single Fortran file.
5314 return LANG_PROCESS;
5317 # Rewrite a single preprocessed Fortran file.
5318 sub lang_ppfc_rewrite
5320 return LANG_PROCESS;
5323 # Rewrite a single preprocessed Fortran 77 file.
5324 sub lang_ppf77_rewrite
5326 return LANG_PROCESS;
5329 # Rewrite a single ratfor file.
5330 sub lang_ratfor_rewrite
5332 return LANG_PROCESS;
5335 # Rewrite a single Objective C file.
5336 sub lang_objc_rewrite
5338 return &lang_sub_obj;
5341 # Rewrite a single Java file.
5342 sub lang_java_rewrite
5347 # The lang_X_finish functions are called after all source file
5348 # processing is done. Each should handle defining rules for the
5349 # language, etc. A finish function is only called if a source file of
5350 # the appropriate type has been seen.
5354 # Push all libobjs files onto de_ansi_files. We actually only
5355 # push files which exist in the current directory, and which are
5356 # genuine source files.
5357 foreach my $file (keys %libsources)
5359 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5361 $de_ansi_files{$1} = ''
5365 if (option 'ansi2knr' && keys %de_ansi_files)
5367 # Make all _.c files depend on their corresponding .c files.
5369 foreach my $base (sort keys %de_ansi_files)
5371 # Each _.c file must depend on ansi2knr; otherwise it
5372 # might be used in a parallel build before it is built.
5373 # We need to support files in the srcdir and in the build
5374 # dir (because these files might be auto-generated. But
5375 # we can't use $< -- some makes only define $< during a
5377 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5378 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5379 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5380 . '`if test -f $(srcdir)/' . $ansfile
5381 . '; then echo $(srcdir)/' . $ansfile
5382 . '; else echo ' . $ansfile . '; fi` '
5383 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5384 . '| $(ANSI2KNR) > $@'
5385 # If ansi2knr fails then we shouldn't
5386 # create the _.c file
5387 . " || rm -f \$\@\n");
5388 push (@objects, $base . '_.$(OBJEXT)');
5389 push (@objects, $base . '_.lo')
5392 # Explicitly clean the _.c files if they are in a
5393 # subdirectory. (In the current directory they get erased
5394 # by a `rm -f *_.c' rule.)
5395 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5396 if dirname ($base) ne '.';
5399 # Make all _.o (and _.lo) files depend on ansi2knr.
5400 # Use a sneaky little hack to make it print nicely.
5401 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5405 # This is a yacc helper which is called whenever we have decided to
5406 # compile a yacc file.
5407 sub lang_yacc_target_hook
5409 my ($self, $aggregate, $output, $input, %transform) = @_;
5411 my $flag = $aggregate . "_YFLAGS";
5412 my $flagvar = var $flag;
5413 my $YFLAGSvar = var 'YFLAGS';
5414 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5415 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5417 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5418 my $header = $output_base . '.h';
5420 # Found a `-d' that applies to the compilation of this file.
5421 # Add a dependency for the generated header file, and arrange
5422 # for that file to be included in the distribution.
5423 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5424 RULE_AUTOMAKE, TRUE,
5427 my $condstr = $cond->subst_string;
5429 "$condstr${header}: $output\n"
5430 # Recover from removal of $header
5431 . "$condstr\t\@if test ! -f \$@; then \\\n"
5432 . "$condstr\t rm -f $output; \\\n"
5433 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
5434 . "$condstr\telse :; fi\n";
5436 # Distribute the generated file, unless its .y source was
5437 # listed in a nodist_ variable. (&handle_source_transform
5438 # will set DIST_SOURCE.)
5439 &push_dist_common ($header)
5440 if $transform{'DIST_SOURCE'};
5442 # If the files are built in the build directory, then we want
5443 # to remove them with `make clean'. If they are in srcdir
5444 # they shouldn't be touched. However, we can't determine this
5445 # statically, and the GNU rules say that yacc/lex output files
5446 # should be removed by maintainer-clean. So that's what we
5448 $clean_files{$header} = MAINTAINER_CLEAN;
5450 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5451 # See the comment above for $HEADER.
5452 $clean_files{$output} = MAINTAINER_CLEAN;
5455 # This is a lex helper which is called whenever we have decided to
5456 # compile a lex file.
5457 sub lang_lex_target_hook
5459 my ($self, $aggregate, $output, $input) = @_;
5460 # If the files are built in the build directory, then we want to
5461 # remove them with `make clean'. If they are in srcdir they
5462 # shouldn't be touched. However, we can't determine this
5463 # statically, and the GNU rules say that yacc/lex output files
5464 # should be removed by maintainer-clean. So that's what we do.
5465 $clean_files{$output} = MAINTAINER_CLEAN;
5468 # This is a helper for both lex and yacc.
5469 sub yacc_lex_finish_helper
5471 return if defined $language_scratch{'lex-yacc-done'};
5472 $language_scratch{'lex-yacc-done'} = 1;
5474 # If there is more than one distinct yacc (resp lex) source file
5475 # in a given directory, then the `ylwrap' program is required to
5476 # allow parallel builds to work correctly. FIXME: for now, no
5478 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5479 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5482 sub lang_yacc_finish
5484 return if defined $language_scratch{'yacc-done'};
5485 $language_scratch{'yacc-done'} = 1;
5487 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5489 &yacc_lex_finish_helper
5490 if count_files_for_language ('yacc') > 1;
5496 return if defined $language_scratch{'lex-done'};
5497 $language_scratch{'lex-done'} = 1;
5499 &yacc_lex_finish_helper
5500 if count_files_for_language ('lex') > 1;
5504 # Given a hash table of linker names, pick the name that has the most
5505 # precedence. This is lame, but something has to have global
5506 # knowledge in order to eliminate the conflict. Add more linkers as
5512 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK))
5514 return $l if defined $linkers{$l};
5519 # Called to indicate that an extension was used.
5523 if (! defined $extension_seen{$ext})
5525 $extension_seen{$ext} = 1;
5529 ++$extension_seen{$ext};
5533 # Return the number of files seen for a given language. Knows about
5534 # special cases we care about. FIXME: this is hideous. We need
5535 # something that involves real language objects. For instance yacc
5536 # and yaccxx could both derive from a common yacc class which would
5537 # know about the strange ylwrap requirement. (Or better yet we could
5538 # just not support legacy yacc!)
5539 sub count_files_for_language
5544 if ($name eq 'yacc' || $name eq 'yaccxx')
5546 @names = ('yacc', 'yaccxx');
5548 elsif ($name eq 'lex' || $name eq 'lexxx')
5550 @names = ('lex', 'lexxx');
5558 foreach $name (@names)
5560 my $lang = $languages{$name};
5561 foreach my $ext (@{$lang->extensions})
5563 $r += $extension_seen{$ext}
5564 if defined $extension_seen{$ext};
5571 # Called to ask whether source files have been seen . If HEADERS is 1,
5572 # headers can be included.
5577 # count all the sources
5579 foreach my $val (values %extension_seen)
5586 $count -= count_files_for_language ('header');
5593 # register_language (%ATTRIBUTE)
5594 # ------------------------------
5595 # Register a single language.
5596 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5597 sub register_language (%)
5603 unless defined $option{'ansi'};
5604 $option{'autodep'} = 'no'
5605 unless defined $option{'autodep'};
5606 $option{'linker'} = ''
5607 unless defined $option{'linker'};
5608 $option{'flags'} = []
5609 unless defined $option{'flags'};
5610 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5611 unless defined $option{'output_extensions'};
5612 $option{'nodist_specific'} = 0
5613 unless defined $option{'nodist_specific'};
5615 my $lang = new Language (%option);
5618 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5619 $languages{$lang->name} = $lang;
5620 my $link = $lang->linker;
5623 if (exists $link_languages{$link})
5625 prog_error ("`$link' has different definitions in "
5626 . $lang->name . " and " . $link_languages{$link}->name)
5627 if $lang->link ne $link_languages{$link}->link;
5631 $link_languages{$link} = $lang;
5635 # Update the pattern of known extensions.
5636 accept_extensions (@{$lang->extensions});
5638 # Upate the $suffix_rule map.
5639 foreach my $suffix (@{$lang->extensions})
5641 foreach my $dest (&{$lang->output_extensions} ($suffix))
5643 register_suffix_rule (INTERNAL, $suffix, $dest);
5648 # derive_suffix ($EXT, $OBJ)
5649 # --------------------------
5650 # This function is used to find a path from a user-specified suffix $EXT
5651 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5652 sub derive_suffix ($$)
5654 my ($source_ext, $obj) = @_;
5656 while (! $extension_map{$source_ext}
5657 && $source_ext ne $obj
5658 && exists $suffix_rules->{$source_ext}
5659 && exists $suffix_rules->{$source_ext}{$obj})
5661 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5668 ################################################################
5670 # Pretty-print something and append to output_rules.
5671 sub pretty_print_rule
5673 $output_rules .= &makefile_wrap (@_);
5677 ################################################################
5680 ## -------------------------------- ##
5681 ## Handling the conditional stack. ##
5682 ## -------------------------------- ##
5686 # make_conditional_string ($NEGATE, $COND)
5687 # ----------------------------------------
5688 sub make_conditional_string ($$)
5690 my ($negate, $cond) = @_;
5691 $cond = "${cond}_TRUE"
5692 unless $cond =~ /^TRUE|FALSE$/;
5693 $cond = Automake::Condition::conditional_negate ($cond)
5700 # cond_stack_if ($NEGATE, $COND, $WHERE)
5701 # --------------------------------------
5702 sub cond_stack_if ($$$)
5704 my ($negate, $cond, $where) = @_;
5706 error $where, "$cond does not appear in AM_CONDITIONAL"
5707 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5709 push (@cond_stack, make_conditional_string ($negate, $cond));
5711 return new Automake::Condition (@cond_stack);
5716 # cond_stack_else ($NEGATE, $COND, $WHERE)
5717 # ----------------------------------------
5718 sub cond_stack_else ($$$)
5720 my ($negate, $cond, $where) = @_;
5724 error $where, "else without if";
5728 $cond_stack[$#cond_stack] =
5729 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5731 # If $COND is given, check against it.
5734 $cond = make_conditional_string ($negate, $cond);
5736 error ($where, "else reminder ($negate$cond) incompatible with "
5737 . "current conditional: $cond_stack[$#cond_stack]")
5738 if $cond_stack[$#cond_stack] ne $cond;
5741 return new Automake::Condition (@cond_stack);
5746 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5747 # -----------------------------------------
5748 sub cond_stack_endif ($$$)
5750 my ($negate, $cond, $where) = @_;
5755 error $where, "endif without if";
5759 # If $COND is given, check against it.
5762 $cond = make_conditional_string ($negate, $cond);
5764 error ($where, "endif reminder ($negate$cond) incompatible with "
5765 . "current conditional: $cond_stack[$#cond_stack]")
5766 if $cond_stack[$#cond_stack] ne $cond;
5771 return new Automake::Condition (@cond_stack);
5778 ## ------------------------ ##
5779 ## Handling the variables. ##
5780 ## ------------------------ ##
5783 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
5784 # -----------------------------------------------------
5785 # Like define_variable, but the value is a list, and the variable may
5786 # be defined conditionally. The second argument is the Condition
5787 # under which the value should be defined; this should be the empty
5788 # string to define the variable unconditionally. The third argument
5789 # is a list holding the values to use for the variable. The value is
5790 # pretty printed in the output file.
5791 sub define_pretty_variable ($$$@)
5793 my ($var, $cond, $where, @value) = @_;
5795 if (! vardef ($var, $cond))
5797 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
5798 '', $where, VAR_PRETTY);
5799 rvar ($var)->rdef ($cond)->set_seen;
5804 # define_variable ($VAR, $VALUE, $WHERE)
5805 # --------------------------------------
5806 # Define a new Automake Makefile variable VAR to VALUE, but only if
5807 # not already defined.
5808 sub define_variable ($$$)
5810 my ($var, $value, $where) = @_;
5811 define_pretty_variable ($var, TRUE, $where, $value);
5815 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
5816 # -----------------------------------------------------------
5817 # Define the $VAR which content is the list of file names composed of
5818 # a @BASENAME and the $EXTENSION.
5819 sub define_files_variable ($\@$$)
5821 my ($var, $basename, $extension, $where) = @_;
5822 define_variable ($var,
5823 join (' ', map { "$_.$extension" } @$basename),
5828 # Like define_variable, but define a variable to be the configure
5829 # substitution by the same name.
5830 sub define_configure_variable ($)
5834 my $pretty = VAR_ASIS;
5835 my $owner = VAR_CONFIGURE;
5837 # Do not output the ANSI2KNR configure variable -- we AC_SUBST
5838 # it in protos.m4, but later redefine it elsewhere. This is
5839 # pretty hacky. We also don't output AMDEPBACKSLASH: it might
5840 # be subst'd by `\', which certainly would not be appreciated by
5842 if ($var eq 'ANSI2KNR' || $var eq 'AMDEPBACKSLASH')
5844 $pretty = VAR_SILENT;
5845 $owner = VAR_AUTOMAKE;
5848 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
5849 '', $configure_vars{$var}, $pretty);
5853 # define_compiler_variable ($LANG)
5854 # --------------------------------
5855 # Define a compiler variable. We also handle defining the `LT'
5856 # version of the command when using libtool.
5857 sub define_compiler_variable ($)
5861 my ($var, $value) = ($lang->compiler, $lang->compile);
5862 my $libtool_tag = '';
5863 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5864 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5865 &define_variable ($var, $value, INTERNAL);
5866 &define_variable ("LT$var",
5867 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5868 . "\$(LIBTOOLFLAGS) --mode=compile $value",
5874 # define_linker_variable ($LANG)
5875 # ------------------------------
5876 # Define linker variables.
5877 sub define_linker_variable ($)
5881 my $libtool_tag = '';
5882 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5883 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5885 &define_variable ($lang->lder, $lang->ld, INTERNAL);
5886 # CCLINK = $(CCLD) blah blah...
5887 &define_variable ($lang->linker,
5889 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5890 . "\$(LIBTOOLFLAGS) --mode=link " : '')
5895 sub define_per_target_linker_variable ($$)
5897 my ($linker, $target) = @_;
5899 # If the user wrote a custom link command, we don't define ours.
5900 return "${target}_LINK"
5901 if set_seen "${target}_LINK";
5903 my $xlink = $linker ? $linker : 'LINK';
5905 my $lang = $link_languages{$xlink};
5906 prog_error "Unknown language for linker variable `$xlink'"
5909 my $link_command = $lang->link;
5912 my $libtool_tag = '';
5913 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5914 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5917 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
5918 . "--mode=link " . $link_command;
5921 # Rewrite each occurrence of `AM_$flag' in the link
5922 # command into `${derived}_$flag' if it exists.
5923 my $orig_command = $link_command;
5924 my @flags = (@{$lang->flags}, 'LDFLAGS');
5925 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
5926 for my $flag (@flags)
5928 my $val = "${target}_$flag";
5929 $link_command =~ s/\(AM_$flag\)/\($val\)/
5933 # If the computed command is the same as the generic command, use
5934 # the command linker variable.
5935 return $lang->linker
5936 if $link_command eq $orig_command;
5938 &define_variable ("${target}_LINK", $link_command, INTERNAL);
5939 return "${target}_LINK";
5942 ################################################################
5944 # &check_trailing_slash ($WHERE, $LINE)
5945 # --------------------------------------
5946 # Return 1 iff $LINE ends with a slash.
5947 # Might modify $LINE.
5948 sub check_trailing_slash ($\$)
5950 my ($where, $line) = @_;
5952 # Ignore `##' lines.
5953 return 0 if $$line =~ /$IGNORE_PATTERN/o;
5955 # Catch and fix a common error.
5956 msg "syntax", $where, "whitespace following trailing backslash"
5957 if $$line =~ s/\\\s+\n$/\\\n/;
5959 return $$line =~ /\\$/;
5963 # &read_am_file ($AMFILE, $WHERE)
5964 # -------------------------------
5965 # Read Makefile.am and set up %contents. Simultaneously copy lines
5966 # from Makefile.am into $output_trailer, or define variables as
5967 # appropriate. NOTE we put rules in the trailer section. We want
5968 # user rules to come after our generated stuff.
5969 sub read_am_file ($$)
5971 my ($amfile, $where) = @_;
5973 my $am_file = new Automake::XFile ("< $amfile");
5974 verb "reading $amfile";
5976 # Keep track of the youngest output dependency.
5977 my $mtime = mtime $amfile;
5978 $output_deps_greatest_timestamp = $mtime
5979 if $mtime > $output_deps_greatest_timestamp;
5985 my $var_look = VAR_ASIS;
5987 use constant IN_VAR_DEF => 0;
5988 use constant IN_RULE_DEF => 1;
5989 use constant IN_COMMENT => 2;
5990 my $prev_state = IN_RULE_DEF;
5992 while ($_ = $am_file->getline)
5994 $where->set ("$amfile:$.");
5995 if (/$IGNORE_PATTERN/o)
5997 # Merely delete comments beginning with two hashes.
5999 elsif (/$WHITE_PATTERN/o)
6001 error $where, "blank line following trailing backslash"
6003 # Stick a single white line before the incoming macro or rule.
6006 # Flush all comments seen so far.
6009 $output_vars .= $comment;
6013 elsif (/$COMMENT_PATTERN/o)
6015 # Stick comments before the incoming macro or rule. Make
6016 # sure a blank line precedes the first block of comments.
6017 $spacing = "\n" unless $blank;
6019 $comment .= $spacing . $_;
6021 $prev_state = IN_COMMENT;
6027 $saw_bk = check_trailing_slash ($where, $_);
6030 # We save the conditional stack on entry, and then check to make
6031 # sure it is the same on exit. This lets us conditionally include
6033 my @saved_cond_stack = @cond_stack;
6034 my $cond = new Automake::Condition (@cond_stack);
6036 my $last_var_name = '';
6037 my $last_var_type = '';
6038 my $last_var_value = '';
6040 # FIXME: shouldn't use $_ in this loop; it is too big.
6043 $where->set ("$amfile:$.");
6045 # Make sure the line is \n-terminated.
6049 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6050 # used by users. @MAINT@ is an anachronism now.
6051 $_ =~ s/\@MAINT\@//g
6052 unless $seen_maint_mode;
6054 my $new_saw_bk = check_trailing_slash ($where, $_);
6056 if (/$IGNORE_PATTERN/o)
6058 # Merely delete comments beginning with two hashes.
6060 # Keep any backslash from the previous line.
6061 $new_saw_bk = $saw_bk;
6063 elsif (/$WHITE_PATTERN/o)
6065 # Stick a single white line before the incoming macro or rule.
6067 error $where, "blank line following trailing backslash"
6070 elsif (/$COMMENT_PATTERN/o)
6072 error $where, "comment following trailing backslash"
6073 if $saw_bk && $comment eq '';
6075 # Stick comments before the incoming macro or rule.
6076 $comment .= $spacing . $_;
6078 $prev_state = IN_COMMENT;
6082 if ($prev_state == IN_RULE_DEF)
6084 my $cond = new Automake::Condition @cond_stack;
6085 $output_trailer .= $cond->subst_string;
6086 $output_trailer .= $_;
6088 elsif ($prev_state == IN_COMMENT)
6090 # If the line doesn't start with a `#', add it.
6091 # We do this because a continued comment like
6095 # is not portable. BSD make doesn't honor
6096 # escaped newlines in comments.
6098 $comment .= $spacing . $_;
6100 else # $prev_state == IN_VAR_DEF
6102 $last_var_value .= ' '
6103 unless $last_var_value =~ /\s$/;
6104 $last_var_value .= $_;
6108 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6109 $last_var_type, $cond,
6110 $last_var_value, $comment,
6111 $last_where, VAR_ASIS)
6113 $comment = $spacing = '';
6118 elsif (/$IF_PATTERN/o)
6120 $cond = cond_stack_if ($1, $2, $where);
6122 elsif (/$ELSE_PATTERN/o)
6124 $cond = cond_stack_else ($1, $2, $where);
6126 elsif (/$ENDIF_PATTERN/o)
6128 $cond = cond_stack_endif ($1, $2, $where);
6131 elsif (/$RULE_PATTERN/o)
6134 $prev_state = IN_RULE_DEF;
6136 # For now we have to output all definitions of user rules
6137 # and can't diagnose duplicates (see the comment in
6138 # Automake::Rule::define). So we go on and ignore the return value.
6139 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6141 check_variable_expansions ($_, $where);
6143 $output_trailer .= $comment . $spacing;
6144 my $cond = new Automake::Condition @cond_stack;
6145 $output_trailer .= $cond->subst_string;
6146 $output_trailer .= $_;
6147 $comment = $spacing = '';
6149 elsif (/$ASSIGNMENT_PATTERN/o)
6151 # Found a macro definition.
6152 $prev_state = IN_VAR_DEF;
6153 $last_var_name = $1;
6154 $last_var_type = $2;
6155 $last_var_value = $3;
6156 $last_where = $where->clone;
6157 if ($3 ne '' && substr ($3, -1) eq "\\")
6159 # We preserve the `\' because otherwise the long lines
6160 # that are generated will be truncated by broken
6162 $last_var_value = $3 . "\n";
6164 # Normally we try to output variable definitions in the
6165 # same format they were input. However, POSIX compliant
6166 # systems are not required to support lines longer than
6167 # 2048 bytes (most notably, some sed implementation are
6168 # limited to 4000 bytes, and sed is used by config.status
6169 # to rewrite Makefile.in into Makefile). Moreover nobody
6170 # would really write such long lines by hand since it is
6171 # hardly maintainable. So if a line is longer that 1000
6172 # bytes (an arbitrary limit), assume it has been
6173 # automatically generated by some tools, and flatten the
6174 # variable definition. Otherwise, keep the variable as it
6176 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6180 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6181 $last_var_type, $cond,
6182 $last_var_value, $comment,
6183 $last_where, $var_look)
6185 $comment = $spacing = '';
6186 $var_look = VAR_ASIS;
6189 elsif (/$INCLUDE_PATTERN/o)
6193 if ($path =~ s/^\$\(top_srcdir\)\///)
6195 push (@include_stack, "\$\(top_srcdir\)/$path");
6196 # Distribute any included file.
6198 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6199 # otherwise OSF make will implicitly copy the included
6200 # file in the build tree during `make distdir' to satisfy
6202 # (subdircond2.test and subdircond3.test will fail.)
6203 push_dist_common ("\$\(top_srcdir\)/$path");
6207 $path =~ s/\$\(srcdir\)\///;
6208 push (@include_stack, "\$\(srcdir\)/$path");
6209 # Always use the $(srcdir) prefix in DIST_COMMON,
6210 # otherwise OSF make will implicitly copy the included
6211 # file in the build tree during `make distdir' to satisfy
6213 # (subdircond2.test and subdircond3.test will fail.)
6214 push_dist_common ("\$\(srcdir\)/$path");
6215 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6217 $where->push_context ("`$path' included from here");
6218 &read_am_file ($path, $where);
6219 $where->pop_context;
6223 # This isn't an error; it is probably a continued rule.
6224 # In fact, this is what we assume.
6225 $prev_state = IN_RULE_DEF;
6226 check_variable_expansions ($_, $where);
6227 $output_trailer .= $comment . $spacing;
6228 my $cond = new Automake::Condition @cond_stack;
6229 $output_trailer .= $cond->subst_string;
6230 $output_trailer .= $_;
6231 $comment = $spacing = '';
6232 error $where, "`#' comment at start of rule is unportable"
6233 if $_ =~ /^\t\s*\#/;
6236 $saw_bk = $new_saw_bk;
6237 $_ = $am_file->getline;
6240 $output_trailer .= $comment;
6242 error ($where, "trailing backslash on last line")
6245 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6246 : "too many conditionals closed in include file"))
6247 if "@saved_cond_stack" ne "@cond_stack";
6251 # define_standard_variables ()
6252 # ----------------------------
6253 # A helper for read_main_am_file which initializes configure variables
6254 # and variables from header-vars.am.
6255 sub define_standard_variables
6257 my $saved_output_vars = $output_vars;
6258 my ($comments, undef, $rules) =
6259 file_contents_internal (1, "$libdir/am/header-vars.am",
6260 new Automake::Location);
6262 foreach my $var (sort keys %configure_vars)
6264 &define_configure_variable ($var);
6267 $output_vars .= $comments . $rules;
6270 # Read main am file.
6271 sub read_main_am_file
6275 # This supports the strange variable tricks we are about to play.
6276 prog_error (macros_dump () . "variable defined before read_main_am_file")
6277 if (scalar (variables) > 0);
6279 # Generate copyright header for generated Makefile.in.
6280 # We do discard the output of predefined variables, handled below.
6281 $output_vars = ("# $in_file_name generated by automake "
6282 . $VERSION . " from $am_file_name.\n");
6283 $output_vars .= '# ' . subst ('configure_input') . "\n";
6284 $output_vars .= $gen_copyright;
6286 # We want to predefine as many variables as possible. This lets
6287 # the user set them with `+=' in Makefile.am.
6288 &define_standard_variables;
6290 # Read user file, which might override some of our values.
6291 &read_am_file ($amfile, new Automake::Location);
6296 ################################################################
6299 # &flatten ($STRING)
6300 # ------------------
6301 # Flatten the $STRING and return the result.
6314 # transform($TOKEN, \%PAIRS)
6315 # ==========================
6316 # If ($TOKEN, $VAL) is in %PAIRS:
6317 # - replaces %$TOKEN% with $VAL,
6318 # - enables/disables ?$TOKEN? and ?!$TOKEN?,
6319 # - replaces %?$TOKEN% with TRUE or FALSE.
6322 my ($token, $transform) = @_;
6324 if (substr ($token, 0, 1) eq '%')
6326 my $cond = (substr ($token, 1, 1) eq '?') ? 1 : 0;
6327 $token = substr ($token, 1 + $cond, -1);
6328 my $val = $transform->{$token};
6329 prog_error "Unknown %token% `$token'" unless defined $val;
6332 return $val ? 'TRUE' : 'FALSE';
6339 # Now $token is '?xxx?' or '?!xxx?'.
6340 my $neg = (substr ($token, 1, 1) eq '!') ? 1 : 0;
6341 $token = substr ($token, 1 + $neg, -1);
6342 my $val = $transform->{$token};
6343 prog_error "Unknown ?token? `$token' (neg = $neg)" unless defined $val;
6344 return (!!$val == $neg) ? '##%' : '';
6348 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6349 # ------------------------------------------
6350 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6352 sub make_paragraphs ($%)
6354 my ($file, %transform) = @_;
6356 # Complete %transform with global options.
6357 # Note that %transform goes last, so it overrides global options.
6358 %transform = ('CYGNUS' => !! option 'cygnus',
6360 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6362 'BZIP2' => !! option 'dist-bzip2',
6363 'COMPRESS' => !! option 'dist-tarZ',
6364 'GZIP' => ! option 'no-dist-gzip',
6365 'SHAR' => !! option 'dist-shar',
6366 'ZIP' => !! option 'dist-zip',
6368 'INSTALL-INFO' => ! option 'no-installinfo',
6369 'INSTALL-MAN' => ! option 'no-installman',
6370 'CK-NEWS' => !! option 'check-news',
6372 'SUBDIRS' => !! var ('SUBDIRS'),
6373 'TOPDIR_P' => $relative_dir eq '.',
6375 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6376 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6377 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6379 'LIBTOOL' => !! var ('LIBTOOL'),
6381 'FIRST' => ! $transformed_files{$file},
6384 $transformed_files{$file} = 1;
6385 $_ = $am_file_cache{$file};
6389 verb "reading $file";
6390 # Swallow the whole file.
6391 my $fc_file = new Automake::XFile "< $file";
6392 my $saved_dollar_slash = $/;
6394 $_ = $fc_file->getline;
6395 $/ = $saved_dollar_slash;
6398 # Remove ##-comments.
6399 # Besides we don't need more than two consecutive new-lines.
6400 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6402 $am_file_cache{$file} = $_;
6405 # Substitute Automake template tokens.
6406 s/(?:%\??[\w\-]+%|\?!?[\w\-]+\?)/transform($&, \%transform)/ge;
6407 # transform() may have added some ##%-comments to strip.
6408 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
6409 # ####### and do not remove the latter.)
6410 s/^[ \t]*(?:##%)+.*\n//gm;
6412 # Split at unescaped new lines.
6413 my @lines = split (/(?<!\\)\n/, $_);
6416 while (defined ($_ = shift @lines))
6419 # If we are a rule, eat as long as we start with a tab.
6420 if (/$RULE_PATTERN/smo)
6422 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6424 $paragraph .= "\n$_";
6426 unshift (@lines, $_);
6429 # If we are a comments, eat as much comments as you can.
6430 elsif (/$COMMENT_PATTERN/smo)
6432 while (defined ($_ = shift @lines)
6433 && $_ =~ /$COMMENT_PATTERN/smo)
6435 $paragraph .= "\n$_";
6437 unshift (@lines, $_);
6440 push @res, $paragraph;
6448 # ($COMMENT, $VARIABLES, $RULES)
6449 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6450 # -------------------------------------------------------------
6451 # Return contents of a file from $libdir/am, automatically skipping
6452 # macros or rules which are already known. $IS_AM iff the caller is
6453 # reading an Automake file (as opposed to the user's Makefile.am).
6454 sub file_contents_internal ($$$%)
6456 my ($is_am, $file, $where, %transform) = @_;
6458 $where->set ($file);
6460 my $result_vars = '';
6461 my $result_rules = '';
6465 # The following flags are used to track rules spanning across
6466 # multiple paragraphs.
6467 my $is_rule = 0; # 1 if we are processing a rule.
6468 my $discard_rule = 0; # 1 if the current rule should not be output.
6470 # We save the conditional stack on entry, and then check to make
6471 # sure it is the same on exit. This lets us conditionally include
6473 my @saved_cond_stack = @cond_stack;
6474 my $cond = new Automake::Condition (@cond_stack);
6476 foreach (make_paragraphs ($file, %transform))
6478 # FIXME: no line number available.
6479 $where->set ($file);
6482 error $where, "blank line following trailing backslash:\n$_"
6484 error $where, "comment following trailing backslash:\n$_"
6490 # Stick empty line before the incoming macro or rule.
6493 elsif (/$COMMENT_PATTERN/mso)
6496 # Stick comments before the incoming macro or rule.
6500 # Handle inclusion of other files.
6501 elsif (/$INCLUDE_PATTERN/o)
6505 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6506 $where->push_context ("`$file' included from here");
6508 my ($com, $vars, $rules)
6509 = file_contents_internal ($is_am, $file, $where, %transform);
6510 $where->pop_context;
6512 $result_vars .= $vars;
6513 $result_rules .= $rules;
6517 # Handling the conditionals.
6518 elsif (/$IF_PATTERN/o)
6520 $cond = cond_stack_if ($1, $2, $file);
6522 elsif (/$ELSE_PATTERN/o)
6524 $cond = cond_stack_else ($1, $2, $file);
6526 elsif (/$ENDIF_PATTERN/o)
6528 $cond = cond_stack_endif ($1, $2, $file);
6532 elsif (/$RULE_PATTERN/mso)
6536 # Separate relationship from optional actions: the first
6537 # `new-line tab" not preceded by backslash (continuation
6540 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6541 my ($relationship, $actions) = ($1, $2 || '');
6543 # Separate targets from dependencies: the first colon.
6544 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6545 my ($targets, $dependencies) = ($1, $2);
6546 # Remove the escaped new lines.
6547 # I don't know why, but I have to use a tmp $flat_deps.
6548 my $flat_deps = &flatten ($dependencies);
6549 my @deps = split (' ', $flat_deps);
6551 foreach (split (' ' , $targets))
6553 # FIXME: 1. We are not robust to people defining several targets
6554 # at once, only some of them being in %dependencies. The
6555 # actions from the targets in %dependencies are usually generated
6556 # from the content of %actions, but if some targets in $targets
6557 # are not in %dependencies the ELSE branch will output
6558 # a rule for all $targets (i.e. the targets which are both
6559 # in %dependencies and $targets will have two rules).
6561 # FIXME: 2. The logic here is not able to output a
6562 # multi-paragraph rule several time (e.g. for each condition
6563 # it is defined for) because it only knows the first paragraph.
6565 # FIXME: 3. We are not robust to people defining a subset
6566 # of a previously defined "multiple-target" rule. E.g.
6567 # `foo:' after `foo bar:'.
6569 # Output only if not in FALSE.
6570 if (defined $dependencies{$_} && $cond != FALSE)
6572 &depend ($_, @deps);
6575 $actions{$_} .= "\n$actions" if $actions;
6579 $actions{$_} = $actions;
6584 # Free-lance dependency. Output the rule for all the
6585 # targets instead of one by one.
6586 my @undefined_conds =
6587 Automake::Rule::define ($targets, $file,
6588 $is_am ? RULE_AUTOMAKE : RULE_USER,
6590 for my $undefined_cond (@undefined_conds)
6592 my $condparagraph = $paragraph;
6593 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6594 $result_rules .= "$spacing$comment$condparagraph\n";
6596 if (scalar @undefined_conds == 0)
6598 # Remember to discard next paragraphs
6599 # if they belong to this rule.
6600 # (but see also FIXME: #2 above.)
6603 $comment = $spacing = '';
6609 elsif (/$ASSIGNMENT_PATTERN/mso)
6611 my ($var, $type, $val) = ($1, $2, $3);
6612 error $where, "variable `$var' with trailing backslash"
6617 Automake::Variable::define ($var,
6618 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6619 $type, $cond, $val, $comment, $where,
6623 $comment = $spacing = '';
6627 # This isn't an error; it is probably some tokens which
6628 # configure is supposed to replace, such as `@SET-MAKE@',
6629 # or some part of a rule cut by an if/endif.
6630 if (! $cond->false && ! ($is_rule && $discard_rule))
6632 s/^/$cond->subst_string/gme;
6633 $result_rules .= "$spacing$comment$_\n";
6635 $comment = $spacing = '';
6639 error ($where, @cond_stack ?
6640 "unterminated conditionals: @cond_stack" :
6641 "too many conditionals closed in include file")
6642 if "@saved_cond_stack" ne "@cond_stack";
6644 return ($comment, $result_vars, $result_rules);
6649 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6650 # ------------------------------------------------
6651 # Return contents of a file from $libdir/am, automatically skipping
6652 # macros or rules which are already known.
6653 sub file_contents ($$%)
6655 my ($basename, $where, %transform) = @_;
6656 my ($comments, $variables, $rules) =
6657 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6659 return "$comments$variables$rules";
6663 # &append_exeext ($MACRO)
6664 # -----------------------
6665 # Macro is an Automake magic macro which primary is PROGRAMS, e.g.
6666 # bin_PROGRAMS. Make sure these programs have $(EXEEXT) appended.
6667 sub append_exeext ($)
6671 prog_error "append_exeext ($macro)"
6672 unless $macro =~ /_PROGRAMS$/;
6674 transform_variable_recursively
6675 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
6677 my ($subvar, $val, $cond, $full_cond) = @_;
6678 # Append $(EXEEXT) unless the user did it already, or it's a
6680 $val .= '$(EXEEXT)' unless $val =~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/;
6687 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6688 # -----------------------------------------------------
6689 # Find all variable prefixes that are used for install directories. A
6690 # prefix `zar' qualifies iff:
6692 # * `zardir' is a variable.
6693 # * `zar_PRIMARY' is a variable.
6695 # As a side effect, it looks for misspellings. It is an error to have
6696 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6697 # "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
6698 # of the same name (with "dir" appended) exists. For instance, if the
6699 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6700 # This is to provide a little extra flexibility in those cases which
6702 sub am_primary_prefixes ($$@)
6704 my ($primary, $can_dist, @prefixes) = @_;
6707 my %valid = map { $_ => 0 } @prefixes;
6708 $valid{'EXTRA'} = 0;
6709 foreach my $var (variables $primary)
6711 # Automake is allowed to define variables that look like primaries
6712 # but which aren't. E.g. INSTALL_sh_DATA.
6713 # Autoconf can also define variables like INSTALL_DATA, so
6714 # ignore all configure variables (at least those which are not
6715 # redefined in Makefile.am).
6716 # FIXME: We should make sure that these variables are not
6717 # conditionally defined (or else adjust the condition below).
6718 my $def = $var->def (TRUE);
6719 next if $def && $def->owner != VAR_MAKEFILE;
6721 my $varname = $var->name;
6723 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
6725 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6726 if ($dist ne '' && ! $can_dist)
6729 "invalid variable `$varname': `dist' is forbidden");
6731 # Standard directories must be explicitly allowed.
6732 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6735 "`${X}dir' is not a legitimate directory " .
6738 # A not explicitly valid directory is allowed if Xdir is defined.
6739 elsif (! defined $valid{$X} &&
6740 $var->requires_variables ("`$varname' is used", "${X}dir"))
6742 # Nothing to do. Any error message has been output
6743 # by $var->requires_variables.
6747 # Ensure all extended prefixes are actually used.
6748 $valid{"$base$dist$X"} = 1;
6753 prog_error "unexpected variable name: $varname";
6757 # Return only those which are actually defined.
6758 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6762 # Handle `where_HOW' variable magic. Does all lookups, generates
6763 # install code, and possibly generates code to define the primary
6764 # variable. The first argument is the name of the .am file to munge,
6765 # the second argument is the primary variable (e.g. HEADERS), and all
6766 # subsequent arguments are possible installation locations.
6768 # Returns list of [$location, $value] pairs, where
6769 # $value's are the values in all where_HOW variable, and $location
6770 # there associated location (the place here their parent variables were
6773 # FIXME: this should be rewritten to be cleaner. It should be broken
6774 # up into multiple functions.
6776 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6783 my $default_dist = 0;
6786 if ($args[0] eq '-noextra')
6790 elsif ($args[0] eq '-candist')
6794 elsif ($args[0] eq '-defaultdist')
6799 elsif ($args[0] !~ /^-/)
6806 my ($file, $primary, @prefix) = @args;
6808 # Now that configure substitutions are allowed in where_HOW
6809 # variables, it is an error to actually define the primary. We
6810 # allow `JAVA', as it is customarily used to mean the Java
6811 # interpreter. This is but one of several Java hacks. Similarly,
6812 # `PYTHON' is customarily used to mean the Python interpreter.
6813 reject_var $primary, "`$primary' is an anachronism"
6814 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
6816 # Get the prefixes which are valid and actually used.
6817 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
6819 # If a primary includes a configure substitution, then the EXTRA_
6820 # form is required. Otherwise we can't properly do our job.
6826 foreach my $X (@prefix)
6828 my $nodir_name = $X;
6829 my $one_name = $X . '_' . $primary;
6830 my $one_var = var $one_name;
6832 my $strip_subdir = 1;
6833 # If subdir prefix should be preserved, do so.
6834 if ($nodir_name =~ /^nobase_/)
6837 $nodir_name =~ s/^nobase_//;
6840 # If files should be distributed, do so.
6844 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
6845 || (! $default_dist && $nodir_name =~ /^dist_/));
6846 $nodir_name =~ s/^(dist|nodist)_//;
6850 # Use the location of the currently processed variable.
6851 # We are not processing a particular condition, so pick the first
6853 my $tmpcond = $one_var->conditions->one_cond;
6854 my $where = $one_var->rdef ($tmpcond)->location->clone;
6856 # Append actual contents of where_PRIMARY variable to
6857 # @result, skipping @substitutions@.
6858 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
6860 my ($loc, $value) = @$locvals;
6861 # Skip configure substitutions.
6862 if ($value =~ /^\@.*\@$/)
6864 if ($nodir_name eq 'EXTRA')
6867 "`$one_name' contains configure substitution, "
6870 # Check here to make sure variables defined in
6871 # configure.ac do not imply that EXTRA_PRIMARY
6873 elsif (! defined $configure_vars{$one_name})
6875 $require_extra = $one_name
6881 push (@result, $locvals);
6884 # A blatant hack: we rewrite each _PROGRAMS primary to include
6886 append_exeext ($one_name)
6887 if $primary eq 'PROGRAMS';
6888 # "EXTRA" shouldn't be used when generating clean targets,
6889 # all, or install targets. We used to warn if EXTRA_FOO was
6890 # defined uselessly, but this was annoying.
6892 if $nodir_name eq 'EXTRA';
6894 if ($nodir_name eq 'check')
6896 push (@check, '$(' . $one_name . ')');
6900 push (@used, '$(' . $one_name . ')');
6903 # Is this to be installed?
6904 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
6906 # If so, with install-exec? (or install-data?).
6907 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
6909 my $check_options_p = $install_p && !! option 'std-options';
6911 # Use the location of the currently processed variable as context.
6912 $where->push_context ("while processing `$one_name'");
6914 # The variable containing all file to distribute.
6915 my $distvar = "\$($one_name)";
6916 $distvar = shadow_unconditionally ($one_name, $where)
6917 if ($dist_p && $one_var->has_conditional_contents);
6919 # Singular form of $PRIMARY.
6920 (my $one_primary = $primary) =~ s/S$//;
6921 $output_rules .= &file_contents ($file, $where,
6922 PRIMARY => $primary,
6923 ONE_PRIMARY => $one_primary,
6925 NDIR => $nodir_name,
6926 BASE => $strip_subdir,
6929 INSTALL => $install_p,
6931 DISTVAR => $distvar,
6932 'CK-OPTS' => $check_options_p);
6935 # The JAVA variable is used as the name of the Java interpreter.
6936 # The PYTHON variable is used as the name of the Python interpreter.
6937 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
6940 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
6941 $output_vars .= "\n";
6944 err_var ($require_extra,
6945 "`$require_extra' contains configure substitution,\n"
6946 . "but `EXTRA_$primary' not defined")
6947 if ($require_extra && ! var ('EXTRA_' . $primary));
6949 # Push here because PRIMARY might be configure time determined.
6950 push (@all, '$(' . $primary . ')')
6951 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
6953 # Make the result unique. This lets the user use conditionals in
6954 # a natural way, but still lets us program lazily -- we don't have
6955 # to worry about handling a particular object more than once.
6956 # We will keep only one location per object.
6958 for my $pair (@result)
6960 my ($loc, $val) = @$pair;
6961 $result{$val} = $loc;
6963 my @l = sort keys %result;
6964 return map { [$result{$_}->clone, $_] } @l;
6968 ################################################################
6970 # Each key in this hash is the name of a directory holding a
6971 # Makefile.in. These variables are local to `is_make_dir'.
6973 my $make_dirs_set = 0;
6978 if (! $make_dirs_set)
6980 foreach my $iter (@configure_input_files)
6982 $make_dirs{dirname ($iter)} = 1;
6984 # We also want to notice Makefile.in's.
6985 foreach my $iter (@other_input_files)
6987 if ($iter =~ /Makefile\.in$/)
6989 $make_dirs{dirname ($iter)} = 1;
6994 return defined $make_dirs{$dir};
6997 ################################################################
6999 # Find the aux dir. This should match the algorithm used by
7000 # ./configure. (See the Autoconf documentation for for
7001 # AC_CONFIG_AUX_DIR.)
7002 sub locate_aux_dir ()
7004 if (! $config_aux_dir_set_in_configure_ac)
7006 # The default auxiliary directory is the first
7007 # of ., .., or ../.. that contains install-sh.
7008 # Assume . if install-sh doesn't exist yet.
7009 for my $dir (qw (. .. ../..))
7011 if (-f "$dir/install-sh")
7013 $config_aux_dir = $dir;
7017 $config_aux_dir = '.' unless $config_aux_dir;
7019 # Avoid unsightly '/.'s.
7020 $am_config_aux_dir =
7021 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7022 $am_config_aux_dir =~ s,/*$,,;
7026 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7027 # --------------------------------------------------
7028 # See if we want to push this file onto dist_common. This function
7029 # encodes the rules for deciding when to do so.
7030 sub maybe_push_required_file
7032 my ($dir, $file, $fullfile) = @_;
7034 if ($dir eq $relative_dir)
7036 push_dist_common ($file);
7039 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7041 # If we are doing the topmost directory, and the file is in a
7042 # subdir which does not have a Makefile, then we distribute it
7045 # If a required file is above the source tree, it is important
7046 # to prefix it with `$(srcdir)' so that no VPATH search is
7047 # performed. Otherwise problems occur with Make implementations
7048 # that rewrite and simplify rules whose dependencies are found in a
7049 # VPATH location. Here is an example with OSF1/Tru64 Make.
7061 # Dependency `../a' was found in `sub/../a', but this make
7062 # implementation simplified it as `a'. (Note that the sub/
7063 # directory does not even exist.)
7065 # This kind of VPATH rewriting seems hard to cancel. The
7066 # distdir.am hack against VPATH rewriting works only when no
7067 # simplification is done, i.e., for dependencies which are in
7068 # subdirectories, not in enclosing directories. Hence, in
7069 # the latter case we use a full path to make sure no VPATH
7071 $fullfile = '$(srcdir)/' . $fullfile
7072 if $dir =~ m,^\.\.(?:$|/),;
7074 push_dist_common ($fullfile);
7081 # If a file name appears as a key in this hash, then it has already
7082 # been checked for. This allows us not to report the same error more
7084 my %required_file_not_found = ();
7086 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7087 # --------------------------------------------------------------
7088 # Verify that the file must exist in $DIRECTORY, or install it.
7089 # $MYSTRICT is the strictness level at which this file becomes required.
7090 sub require_file_internal ($$$@)
7092 my ($where, $mystrict, $dir, @files) = @_;
7094 foreach my $file (@files)
7096 my $fullfile = "$dir/$file";
7098 my $dangling_sym = 0;
7100 if (-l $fullfile && ! -f $fullfile)
7104 elsif (dir_has_case_matching_file ($dir, $file))
7107 maybe_push_required_file ($dir, $file, $fullfile);
7110 # `--force-missing' only has an effect if `--add-missing' is
7112 if ($found_it && (! $add_missing || ! $force_missing))
7118 # If we've already looked for it, we're done. You might
7119 # wonder why we don't do this before searching for the
7120 # file. If we do that, then something like
7121 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7125 next if defined $required_file_not_found{$fullfile};
7126 $required_file_not_found{$fullfile} = 1;
7129 if ($strictness >= $mystrict)
7131 if ($dangling_sym && $add_missing)
7139 # Only install missing files according to our desired
7141 my $message = "required file `$fullfile' not found";
7144 if (-f "$libdir/$file")
7148 # Install the missing file. Symlink if we
7149 # can, copy if we must. Note: delete the file
7150 # first, in case it is a dangling symlink.
7151 $message = "installing `$fullfile'";
7152 # Windows Perl will hang if we try to delete a
7153 # file that doesn't exist.
7154 unlink ($fullfile) if -f $fullfile;
7155 if ($symlink_exists && ! $copy_missing)
7157 if (! symlink ("$libdir/$file", $fullfile))
7160 $trailer = "; error while making link: $!";
7163 elsif (system ('cp', "$libdir/$file", $fullfile))
7166 $trailer = "\n error while copying";
7168 reset_dir_cache ($dir);
7171 if (! maybe_push_required_file (dirname ($fullfile),
7174 if (! $found_it && ! $automake_will_process_aux_dir)
7176 # We have added the file but could not push it
7177 # into DIST_COMMON, probably because this is
7178 # an auxiliary file and we are not processing
7179 # the top level Makefile. Furthermore Automake
7180 # hasn't been asked to create the Makefile.in
7181 # that distribute the aux dir files.
7182 error ($where, 'Please make a full run of automake'
7183 . " so $fullfile gets distributed.");
7189 $trailer = "\n `automake --add-missing' can install `$file'"
7190 if -f "$libdir/$file";
7193 # If --force-missing was specified, and we have
7194 # actually found the file, then do nothing.
7196 if $found_it && $force_missing;
7198 # If we couldn' install the file, but it is a target in
7199 # the Makefile, don't print anything. This allows files
7200 # like README, AUTHORS, or THANKS to be generated.
7202 if !$suppress && rule $file;
7204 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
7210 # &require_file ($WHERE, $MYSTRICT, @FILES)
7211 # -----------------------------------------
7212 sub require_file ($$@)
7214 my ($where, $mystrict, @files) = @_;
7215 require_file_internal ($where, $mystrict, $relative_dir, @files);
7218 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7219 # -----------------------------------------------------------
7220 sub require_file_with_macro ($$$@)
7222 my ($cond, $macro, $mystrict, @files) = @_;
7223 $macro = rvar ($macro) unless ref $macro;
7224 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7227 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7228 # ----------------------------------------------------------------
7229 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7230 # must be in that directory. Otherwise expect it in the current directory.
7231 sub require_libsource_with_macro ($$$@)
7233 my ($cond, $macro, $mystrict, @files) = @_;
7234 $macro = rvar ($macro) unless ref $macro;
7235 if ($config_libobj_dir)
7237 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7238 $config_libobj_dir, @files);
7242 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7246 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7247 # ----------------------------------------------
7248 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7249 sub require_conf_file ($$@)
7251 my ($where, $mystrict, @files) = @_;
7252 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7256 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7257 # ----------------------------------------------------------------
7258 sub require_conf_file_with_macro ($$$@)
7260 my ($cond, $macro, $mystrict, @files) = @_;
7261 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7265 ################################################################
7267 # &require_build_directory ($DIRECTORY)
7268 # ------------------------------------
7269 # Emit rules to create $DIRECTORY if needed, and return
7270 # the file that any target requiring this directory should be made
7272 # We don't want to emit the rule twice, and want to reuse it
7273 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7274 sub require_build_directory ($)
7276 my $directory = shift;
7278 return $directory_map{$directory} if exists $directory_map{$directory};
7280 my $cdir = File::Spec->canonpath ($directory);
7282 if (exists $directory_map{$cdir})
7284 my $stamp = $directory_map{$cdir};
7285 $directory_map{$directory} = $stamp;
7289 my $dirstamp = "$cdir/\$(am__dirstamp)";
7291 $directory_map{$directory} = $dirstamp;
7292 $directory_map{$cdir} = $dirstamp;
7294 # Set a variable for the dirstamp basename.
7295 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7296 '$(am__leading_dot)dirstamp');
7298 # Directory must be removed by `make distclean'.
7299 $clean_files{$dirstamp} = DIST_CLEAN;
7301 $output_rules .= ("$dirstamp:\n"
7302 . "\t\@\$(mkdir_p) $directory\n"
7303 . "\t\@: > $dirstamp\n");
7308 # &require_build_directory_maybe ($FILE)
7309 # --------------------------------------
7310 # If $FILE lies in a subdirectory, emit a rule to create this
7311 # directory and return the file that $FILE should be made
7312 # dependent upon. Otherwise, just return the empty string.
7313 sub require_build_directory_maybe ($)
7316 my $directory = dirname ($file);
7318 if ($directory ne '.')
7320 return require_build_directory ($directory);
7328 ################################################################
7330 # Push a list of files onto dist_common.
7331 sub push_dist_common
7333 prog_error "push_dist_common run after handle_dist"
7334 if $handle_dist_run;
7335 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7336 '', INTERNAL, VAR_PRETTY);
7340 ################################################################
7342 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7343 # ----------------------------------------------
7344 # Generate a Makefile.in given the name of the corresponding Makefile and
7345 # the name of the file output by config.status.
7346 sub generate_makefile ($$)
7348 my ($makefile_am, $makefile_in) = @_;
7350 # Reset all the Makefile.am related variables.
7351 initialize_per_input;
7353 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7354 # warnings for this file. So hold any warning issued before
7355 # we have processed AUTOMAKE_OPTIONS.
7356 buffer_messages ('warning');
7358 # Name of input file ("Makefile.am") and output file
7359 # ("Makefile.in"). These have no directory components.
7360 $am_file_name = basename ($makefile_am);
7361 $in_file_name = basename ($makefile_in);
7363 # $OUTPUT is encoded. If it contains a ":" then the first element
7364 # is the real output file, and all remaining elements are input
7365 # files. We don't scan or otherwise deal with these input files,
7366 # other than to mark them as dependencies. See
7367 # &scan_autoconf_files for details.
7368 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7370 $relative_dir = dirname ($makefile);
7371 $am_relative_dir = dirname ($makefile_am);
7372 $topsrcdir = backname ($relative_dir);
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