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, 2006 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 # uses 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 # Ignored configure substitutions (i.e., variables not to be output in
395 my %ignored_configure_vars = ();
397 # Files included by $configure_ac.
398 my @configure_deps = ();
400 # Greatest timestamp of configure's dependencies.
401 my $configure_deps_greatest_timestamp = 0;
403 # Hash table of AM_CONDITIONAL variables seen in configure.
404 my %configure_cond = ();
406 # This maps extensions onto language names.
407 my %extension_map = ();
409 # List of the DIST_COMMON files we discovered while reading
411 my $configure_dist_common = '';
413 # This maps languages names onto objects.
415 # Maps each linker variable onto a language object.
416 my %link_languages = ();
418 # List of targets we must always output.
419 # FIXME: Complete, and remove falsely required targets.
420 my %required_targets =
433 # FIXME: Not required, temporary hacks.
434 # Well, actually they are sort of required: the -recursive
435 # targets will run them anyway...
440 'install-data-am' => 1,
441 'install-exec-am' => 1,
442 'installcheck-am' => 1,
448 # Set to 1 if this run will create the Makefile.in that distribute
449 # the files in config_aux_dir.
450 my $automake_will_process_aux_dir = 0;
452 # The name of the Makefile currently being processed.
456 ################################################################
458 ## ------------------------------------------ ##
459 ## Variables reset by &initialize_per_input. ##
460 ## ------------------------------------------ ##
462 # Basename and relative dir of the input file.
466 # Same but wrt Makefile.in.
470 # Relative path to the top directory.
473 # Greatest timestamp of the output's dependencies (excluding
474 # configure's dependencies).
475 my $output_deps_greatest_timestamp;
477 # These two variables are used when generating each Makefile.in.
478 # They hold the Makefile.in until it is ready to be printed.
485 # This is the conditional stack, updated on if/else/endif, and
486 # used to build Condition objects.
489 # This holds the set of included files.
492 # List of dependencies for the obvious targets.
497 # Keys in this hash table are files to delete. The associated
498 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
501 # Keys in this hash table are object files or other files in
502 # subdirectories which need to be removed. This only holds files
503 # which are created by compilations. The value in the hash indicates
504 # when the file should be removed.
505 my %compile_clean_files;
507 # Keys in this hash table are directories where we expect to build a
508 # libtool object. We use this information to decide what directories
510 my %libtool_clean_directories;
512 # Value of `$(SOURCES)', used by tags.am.
514 # Sources which go in the distribution.
517 # This hash maps object file names onto their corresponding source
518 # file names. This is used to ensure that each object is created
519 # by a single source file.
522 # This hash maps object file names onto an integer value representing
523 # whether this object has been built via ordinary compilation or
524 # libtool compilation (the COMPILE_* constants).
525 my %object_compilation_map;
528 # This keeps track of the directories for which we've already
529 # created dirstamp code. Keys are directories, values are stamp files.
530 # Several keys can share the same stamp files if they are equivalent
531 # (as are `.//foo' and `foo').
537 # This is a list of all targets to run during "make dist".
540 # Keep track of all programs declared in this Makefile, without
541 # $(EXEEXT). @substitution@ are not listed.
544 # Keys in this hash are the basenames of files which must depend on
545 # ansi2knr. Values are either the empty string, or the directory in
546 # which the ANSI source file appears; the directory must have a
550 # This is the name of the redirect `all' target to use.
553 # This keeps track of which extensions we've seen (that we care
557 # This is random scratch space for the language finish functions.
558 # Don't randomly overwrite it; examine other uses of keys first.
559 my %language_scratch;
561 # We keep track of which objects need special (per-executable)
562 # handling on a per-language basis.
563 my %lang_specific_files;
565 # This is set when `handle_dist' has finished. Once this happens,
566 # we should no longer push on dist_common.
569 # Used to store a set of linkers needed to generate the sources currently
570 # under consideration.
573 # True if we need `LINK' defined. This is a hack.
576 # Was get_object_extension run?
577 # FIXME: This is a hack. a better switch should be found.
578 my $get_object_extension_was_run;
580 # Record each file processed by make_paragraphs.
581 my %transformed_files;
583 # Cache each file processed by make_paragraphs.
584 # (This is different from %transformed_files because
585 # %transformed_files is reset for each file while %am_file_cache
586 # it global to the run.)
589 ################################################################
591 # var_SUFFIXES_trigger ($TYPE, $VALUE)
592 # ------------------------------------
593 # This is called by Automake::Variable::define() when SUFFIXES
594 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
595 # The work here needs to be performed as a side-effect of the
596 # macro_define() call because SUFFIXES definitions impact
597 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
599 sub var_SUFFIXES_trigger ($$)
601 my ($type, $value) = @_;
602 accept_extensions (split (' ', $value));
604 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
606 ################################################################
608 ## --------------------------------- ##
609 ## Forward subroutine declarations. ##
610 ## --------------------------------- ##
611 sub register_language (%);
612 sub file_contents_internal ($$$%);
613 sub define_files_variable ($\@$$);
616 # &initialize_per_input ()
617 # ------------------------
618 # (Re)-Initialize per-Makefile.am variables.
619 sub initialize_per_input ()
621 reset_local_duplicates ();
624 $am_relative_dir = '';
629 $output_deps_greatest_timestamp = 0;
633 $output_trailer = '';
637 Automake::Options::reset;
638 Automake::Variable::reset;
639 Automake::Rule::reset;
655 %object_compilation_map = ();
663 %known_programs = ();
669 %extension_seen = ();
671 %language_scratch = ();
673 %lang_specific_files = ();
675 $handle_dist_run = 0;
679 $get_object_extension_was_run = 0;
681 %compile_clean_files = ();
683 # We always include `.'. This isn't strictly correct.
684 %libtool_clean_directories = ('.' => 1);
686 %transformed_files = ();
690 ################################################################
692 # Initialize our list of languages that are internally supported.
695 register_language ('name' => 'c',
697 'config_vars' => ['CC'],
700 'flags' => ['CFLAGS', 'CPPFLAGS'],
701 'compiler' => 'COMPILE',
702 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
706 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
707 'compile_flag' => '-c',
708 'libtool_tag' => 'CC',
709 'extensions' => ['.c'],
710 '_finish' => \&lang_c_finish);
713 register_language ('name' => 'cxx',
715 'config_vars' => ['CXX'],
716 'linker' => 'CXXLINK',
717 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
719 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
720 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
721 'compiler' => 'CXXCOMPILE',
722 'compile_flag' => '-c',
723 'output_flag' => '-o',
724 'libtool_tag' => 'CXX',
728 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
731 register_language ('name' => 'objc',
732 'Name' => 'Objective C',
733 'config_vars' => ['OBJC'],
734 'linker' => 'OBJCLINK',
735 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
737 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
738 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
739 'compiler' => 'OBJCCOMPILE',
740 'compile_flag' => '-c',
741 'output_flag' => '-o',
745 'extensions' => ['.m']);
747 # Unified Parallel C.
748 register_language ('name' => 'upc',
749 'Name' => 'Unified Parallel C',
750 'config_vars' => ['UPC'],
751 'linker' => 'UPCLINK',
752 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
754 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
755 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
756 'compiler' => 'UPCCOMPILE',
757 'compile_flag' => '-c',
758 'output_flag' => '-o',
762 'extensions' => ['.upc']);
765 register_language ('name' => 'header',
767 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
770 'output_extensions' => sub { return () },
772 '_finish' => sub { });
775 register_language ('name' => 'yacc',
777 'config_vars' => ['YACC'],
778 'flags' => ['YFLAGS'],
779 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
780 'compiler' => 'YACCCOMPILE',
781 'extensions' => ['.y'],
782 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
784 'rule_file' => 'yacc',
785 '_finish' => \&lang_yacc_finish,
786 '_target_hook' => \&lang_yacc_target_hook,
787 'nodist_specific' => 1);
788 register_language ('name' => 'yaccxx',
789 'Name' => 'Yacc (C++)',
790 'config_vars' => ['YACC'],
791 'rule_file' => 'yacc',
792 'flags' => ['YFLAGS'],
793 'compiler' => 'YACCCOMPILE',
794 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
795 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
796 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
798 '_finish' => \&lang_yacc_finish,
799 '_target_hook' => \&lang_yacc_target_hook,
800 'nodist_specific' => 1);
803 register_language ('name' => 'lex',
805 'config_vars' => ['LEX'],
806 'rule_file' => 'lex',
807 'flags' => ['LFLAGS'],
808 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
809 'compiler' => 'LEXCOMPILE',
810 'extensions' => ['.l'],
811 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
813 '_finish' => \&lang_lex_finish,
814 '_target_hook' => \&lang_lex_target_hook,
815 'nodist_specific' => 1);
816 register_language ('name' => 'lexxx',
817 'Name' => 'Lex (C++)',
818 'config_vars' => ['LEX'],
819 'rule_file' => 'lex',
820 'flags' => ['LFLAGS'],
821 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
822 'compiler' => 'LEXCOMPILE',
823 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
824 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
826 '_finish' => \&lang_lex_finish,
827 '_target_hook' => \&lang_lex_target_hook,
828 'nodist_specific' => 1);
831 register_language ('name' => 'asm',
832 'Name' => 'Assembler',
833 'config_vars' => ['CCAS', 'CCASFLAGS'],
835 'flags' => ['CCASFLAGS'],
836 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
837 # or anything else required. They can also set CCAS.
838 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
839 'compiler' => 'CCASCOMPILE',
840 'compile_flag' => '-c',
841 'extensions' => ['.s'],
843 # With assembly we still use the C linker.
844 '_finish' => \&lang_c_finish);
846 # Preprocessed Assembler.
847 register_language ('name' => 'cppasm',
848 'Name' => 'Preprocessed Assembler',
849 'config_vars' => ['CCAS', 'CCASFLAGS'],
852 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
853 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
854 # or anything else required beyond AM_CPPFLAGS. They
856 'compile' => '$(CCAS) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
857 'compiler' => 'CPPASCOMPILE',
858 'compile_flag' => '-c',
859 'extensions' => ['.S'],
861 # With assembly we still use the C linker.
862 '_finish' => \&lang_c_finish);
865 register_language ('name' => 'f77',
866 'Name' => 'Fortran 77',
867 'config_vars' => ['F77'],
868 'linker' => 'F77LINK',
869 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
870 'flags' => ['FFLAGS'],
871 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
872 'compiler' => 'F77COMPILE',
873 'compile_flag' => '-c',
874 'output_flag' => '-o',
875 'libtool_tag' => 'F77',
879 'extensions' => ['.f', '.for']);
882 register_language ('name' => 'fc',
884 'config_vars' => ['FC'],
885 'linker' => 'FCLINK',
886 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
887 'flags' => ['FCFLAGS'],
888 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
889 'compiler' => 'FCCOMPILE',
890 'compile_flag' => '-c',
891 'output_flag' => '-o',
895 'extensions' => ['.f90', '.f95']);
897 # Preprocessed Fortran
898 register_language ('name' => 'ppfc',
899 'Name' => 'Preprocessed Fortran',
900 'config_vars' => ['FC'],
901 'linker' => 'FCLINK',
902 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
905 'flags' => ['FCFLAGS', 'CPPFLAGS'],
906 'compiler' => 'PPFCCOMPILE',
907 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
908 'compile_flag' => '-c',
909 'output_flag' => '-o',
910 'libtool_tag' => 'FC',
912 'extensions' => ['.F90','.F95']);
914 # Preprocessed Fortran 77
916 # The current support for preprocessing Fortran 77 just involves
917 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
918 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
919 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
920 # for `make' Version 3.76 Beta' (specifically, from info file
921 # `(make)Catalogue of Rules').
923 # A better approach would be to write an Autoconf test
924 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
925 # Fortran 77 compilers know how to do preprocessing. The Autoconf
926 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
927 # preprocessing capabilities, and then fall back on cpp (if cpp were
929 register_language ('name' => 'ppf77',
930 'Name' => 'Preprocessed Fortran 77',
931 'config_vars' => ['F77'],
932 'linker' => 'F77LINK',
933 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
936 'flags' => ['FFLAGS', 'CPPFLAGS'],
937 'compiler' => 'PPF77COMPILE',
938 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
939 'compile_flag' => '-c',
940 'output_flag' => '-o',
941 'libtool_tag' => 'F77',
943 'extensions' => ['.F']);
946 register_language ('name' => 'ratfor',
948 'config_vars' => ['F77'],
949 'linker' => 'F77LINK',
950 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
953 'flags' => ['RFLAGS', 'FFLAGS'],
955 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
956 'compiler' => 'RCOMPILE',
957 'compile_flag' => '-c',
958 'output_flag' => '-o',
959 'libtool_tag' => 'F77',
961 'extensions' => ['.r']);
964 register_language ('name' => 'java',
966 'config_vars' => ['GCJ'],
967 'linker' => 'GCJLINK',
968 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
970 'flags' => ['GCJFLAGS'],
971 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
972 'compiler' => 'GCJCOMPILE',
973 'compile_flag' => '-c',
974 'output_flag' => '-o',
975 'libtool_tag' => 'GCJ',
979 'extensions' => ['.java', '.class', '.zip', '.jar']);
981 ################################################################
983 # Error reporting functions.
985 # err_am ($MESSAGE, [%OPTIONS])
986 # -----------------------------
987 # Uncategorized errors about the current Makefile.am.
990 msg_am ('error', @_);
993 # err_ac ($MESSAGE, [%OPTIONS])
994 # -----------------------------
995 # Uncategorized errors about configure.ac.
998 msg_ac ('error', @_);
1001 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1002 # ---------------------------------------
1003 # Messages about about the current Makefile.am.
1006 my ($channel, $msg, %opts) = @_;
1007 msg $channel, "${am_file}.am", $msg, %opts;
1010 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1011 # ---------------------------------------
1012 # Messages about about configure.ac.
1015 my ($channel, $msg, %opts) = @_;
1016 msg $channel, $configure_ac, $msg, %opts;
1019 ################################################################
1023 # Return a configure-style substitution using the indicated text.
1024 # We do this to avoid having the substitutions directly in automake.in;
1025 # when we do that they are sometimes removed and this causes confusion
1030 return '@' . $text . '@';
1033 ################################################################
1037 # &backname ($REL-DIR)
1038 # --------------------
1039 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1040 # For instance `src/foo' => `../..'.
1041 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1046 foreach (split (/\//, $file))
1048 next if $_ eq '.' || $_ eq '';
1058 return join ('/', @res) || '.';
1061 ################################################################
1064 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1067 my $var = var ('AUTOMAKE_OPTIONS');
1070 if ($var->has_conditional_contents)
1072 msg_var ('unsupported', $var,
1073 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1075 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1078 my ($loc, $value) = @$locvals;
1079 return 1 if (process_option_list ($loc, $value))
1083 if ($strictness == GNITS)
1085 set_option ('readme-alpha', INTERNAL);
1086 set_option ('std-options', INTERNAL);
1087 set_option ('check-news', INTERNAL);
1093 # shadow_unconditionally ($varname, $where)
1094 # -----------------------------------------
1095 # Return a $(variable) that contains all possible values
1096 # $varname can take.
1097 # If the VAR wasn't defined conditionally, return $(VAR).
1098 # Otherwise we create a am__VAR_DIST variable which contains
1099 # all possible values, and return $(am__VAR_DIST).
1100 sub shadow_unconditionally ($$)
1102 my ($varname, $where) = @_;
1103 my $var = var $varname;
1104 if ($var->has_conditional_contents)
1106 $varname = "am__${varname}_DIST";
1107 my @files = uniq ($var->value_as_list_recursive);
1108 define_pretty_variable ($varname, TRUE, $where, @files);
1110 return "\$($varname)"
1113 # get_object_extension ($EXTENSION)
1114 # ---------------------------------
1115 # Prefix $EXTENSION with $U if ansi2knr is in use.
1116 sub get_object_extension ($)
1118 my ($extension) = @_;
1120 # Check for automatic de-ANSI-fication.
1121 $extension = '$U' . $extension
1122 if option 'ansi2knr';
1124 $get_object_extension_was_run = 1;
1129 # check_user_variables (@LIST)
1130 # ----------------------------
1131 # Make sure each variable VAR in @LIST do not exist, suggest using AM_VAR
1133 sub check_user_variables (@)
1135 my @dont_override = @_;
1136 foreach my $flag (@dont_override)
1138 my $var = var $flag;
1141 for my $cond ($var->conditions->conds)
1143 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1145 msg_cond_var ('gnu', $cond, $flag,
1146 "`$flag' is a user variable, "
1147 . "you should not override it;\n"
1148 . "use `AM_$flag' instead.");
1155 # Call finish function for each language that was used.
1156 sub handle_languages
1158 if (! option 'no-dependencies')
1160 # Include auto-dep code. Don't include it if DEP_FILES would
1162 if (&saw_sources_p (0) && keys %dep_files)
1164 # Set location of depcomp.
1165 &define_variable ('depcomp',
1166 "\$(SHELL) $am_config_aux_dir/depcomp",
1168 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1170 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1172 my @deplist = sort keys %dep_files;
1173 # Generate each `include' individually. Irix 6 make will
1174 # not properly include several files resulting from a
1175 # variable expansion; generating many separate includes
1177 $output_rules .= "\n";
1178 foreach my $iter (@deplist)
1180 $output_rules .= (subst ('AMDEP_TRUE')
1181 . subst ('am__include')
1183 . subst ('am__quote')
1185 . subst ('am__quote')
1189 # Compute the set of directories to remove in distclean-depend.
1190 my @depdirs = uniq (map { dirname ($_) } @deplist);
1191 $output_rules .= &file_contents ('depend',
1192 new Automake::Location,
1193 DEPDIRS => "@depdirs");
1198 &define_variable ('depcomp', '', INTERNAL);
1199 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1204 # Is the c linker needed?
1206 foreach my $ext (sort keys %extension_seen)
1208 next unless $extension_map{$ext};
1210 my $lang = $languages{$extension_map{$ext}};
1212 my $rule_file = $lang->rule_file || 'depend2';
1214 # Get information on $LANG.
1215 my $pfx = $lang->autodep;
1216 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1218 my ($AMDEP, $FASTDEP) =
1219 (option 'no-dependencies' || $lang->autodep eq 'no')
1220 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1222 my %transform = ('EXT' => $ext,
1226 'FASTDEP' => $FASTDEP,
1227 '-c' => $lang->compile_flag || '',
1228 # These are not used, but they need to be defined
1229 # so &transform do not complain.
1231 'DERIVED-EXT' => 'BUG',
1235 # Generate the appropriate rules for this extension.
1236 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1237 || defined $lang->compile)
1239 # Some C compilers don't support -c -o. Use it only if really
1241 my $output_flag = $lang->output_flag || '';
1244 && $lang->name eq 'c'
1245 && option 'subdir-objects');
1247 # Compute a possible derived extension.
1248 # This is not used by depend2.am.
1249 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1251 # When we output an inference rule like `.c.o:' we
1252 # have two cases to consider: either subdir-objects
1253 # is used, or it is not.
1255 # In the latter case the rule is used to build objects
1256 # in the current directory, and dependencies always
1257 # go into `./$(DEPDIR)/'. We can hard-code this value.
1259 # In the former case the rule can be used to build
1260 # objects in sub-directories too. Dependencies should
1261 # go into the appropriate sub-directories, e.g.,
1262 # `sub/$(DEPDIR)/'. The value of this directory
1263 # need the be computed on-the-fly.
1265 # DEPBASE holds the name of this directory, plus the
1266 # basename part of the object file (extensions Po, TPo,
1267 # Plo, TPlo will be added later as appropriate). It is
1268 # either hardcoded, or a shell variable (`$depbase') that
1269 # will be computed by the rule.
1271 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1273 file_contents ($rule_file,
1274 new Automake::Location,
1278 'DERIVED-EXT' => $der_ext,
1280 DEPBASE => $depbase,
1287 COMPILE => '$(' . $lang->compiler . ')',
1288 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1290 SUBDIROBJ => !! option 'subdir-objects');
1293 # Now include code for each specially handled object with this
1295 my %seen_files = ();
1296 foreach my $file (@{$lang_specific_files{$lang->name}})
1298 my ($derived, $source, $obj, $myext, %file_transform) = @$file;
1300 # We might see a given object twice, for instance if it is
1301 # used under different conditions.
1302 next if defined $seen_files{$obj};
1303 $seen_files{$obj} = 1;
1305 prog_error ("found " . $lang->name .
1306 " in handle_languages, but compiler not defined")
1307 unless defined $lang->compile;
1309 my $obj_compile = $lang->compile;
1311 # Rewrite each occurrence of `AM_$flag' in the compile
1312 # rule into `${derived}_$flag' if it exists.
1313 for my $flag (@{$lang->flags})
1315 my $val = "${derived}_$flag";
1316 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1320 my $libtool_tag = '';
1321 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1323 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1326 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1327 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1330 "\$(LIBTOOL) $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1331 . "--mode=compile $obj_compile";
1333 # We _need_ `-o' for per object rules.
1334 my $output_flag = $lang->output_flag || '-o';
1336 my $depbase = dirname ($obj);
1340 unless $depbase eq '';
1341 $depbase .= '$(DEPDIR)/' . basename ($obj);
1343 # Support for deansified files in subdirectories is ugly
1344 # enough to deserve an explanation.
1346 # A Note about normal ansi2knr processing first. On
1348 # AUTOMAKE_OPTIONS = ansi2knr
1349 # bin_PROGRAMS = foo
1350 # foo_SOURCES = foo.c
1352 # we generate rules similar to:
1354 # foo: foo$U.o; link ...
1355 # foo$U.o: foo$U.c; compile ...
1356 # foo_.c: foo.c; ansi2knr ...
1358 # this is fairly compact, and will call ansi2knr depending
1359 # on the value of $U (`' or `_').
1361 # It's harder with subdir sources. On
1363 # AUTOMAKE_OPTIONS = ansi2knr
1364 # bin_PROGRAMS = foo
1365 # foo_SOURCES = sub/foo.c
1367 # we have to create foo_.c in the current directory.
1368 # (Unless the user asks 'subdir-objects'.) This is important
1369 # in case the same file (`foo.c') is compiled from other
1370 # directories with different cpp options: foo_.c would
1371 # be preprocessed for only one set of options if it were
1372 # put in the subdirectory.
1374 # Because foo$U.o must be built from either foo_.c or
1375 # sub/foo.c we can't be as concise as in the first example.
1378 # foo: foo$U.o; link ...
1379 # foo_.o: foo_.c; compile ...
1380 # foo.o: sub/foo.c; compile ...
1381 # foo_.c: foo.c; ansi2knr ...
1383 # This is why we'll now transform $rule_file twice
1384 # if we detect this case.
1385 # A first time we output the compile rule with `$U'
1386 # replaced by `_' and the source directory removed,
1387 # and another time we simply remove `$U'.
1389 # Note that at this point $source (as computed by
1390 # &handle_single_transform) is `sub/foo$U.c'.
1391 # This can be confusing: it can be used as-is when
1392 # subdir-objects is set, otherwise you have to know
1393 # it really means `foo_.c' or `sub/foo.c'.
1394 my $objdir = dirname ($obj);
1395 my $srcdir = dirname ($source);
1396 if ($lang->ansi && $obj =~ /\$U/)
1398 prog_error "`$obj' contains \$U, but `$source' doesn't."
1399 if $source !~ /\$U/;
1401 (my $source_ = $source) =~ s/\$U/_/g;
1402 # Output an additional rule if _.c and .c are not in
1403 # the same directory. (_.c is always in $objdir.)
1404 if ($objdir ne $srcdir)
1406 (my $obj_ = $obj) =~ s/\$U/_/g;
1407 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1408 $source_ = basename ($source_);
1411 file_contents ($rule_file,
1412 new Automake::Location,
1416 DEPBASE => $depbase_,
1419 OBJ => "$obj_$myext",
1420 OBJOBJ => "$obj_.obj",
1421 LTOBJ => "$obj_.lo",
1423 COMPILE => $obj_compile,
1424 LTCOMPILE => $obj_ltcompile,
1428 $depbase =~ s/\$U//g;
1429 $source =~ s/\$U//g;
1434 file_contents ($rule_file,
1435 new Automake::Location,
1439 DEPBASE => $depbase,
1442 # Use $myext and not `.o' here, in case
1443 # we are actually building a new source
1444 # file -- e.g. via yacc.
1445 OBJ => "$obj$myext",
1446 OBJOBJ => "$obj.obj",
1449 COMPILE => $obj_compile,
1450 LTCOMPILE => $obj_ltcompile,
1455 # The rest of the loop is done once per language.
1456 next if defined $done{$lang};
1459 # Load the language dependent Makefile chunks.
1460 my %lang = map { uc ($_) => 0 } keys %languages;
1461 $lang{uc ($lang->name)} = 1;
1462 $output_rules .= file_contents ('lang-compile',
1463 new Automake::Location,
1466 # If the source to a program consists entirely of code from a
1467 # `pure' language, for instance C++ or Fortran 77, then we
1468 # don't need the C compiler code. However if we run into
1469 # something unusual then we do generate the C code. There are
1470 # probably corner cases here that do not work properly.
1471 # People linking Java code to Fortran code deserve pain.
1472 $needs_c ||= ! $lang->pure;
1474 define_compiler_variable ($lang)
1475 if ($lang->compile);
1477 define_linker_variable ($lang)
1480 require_variables ("$am_file.am", $lang->Name . " source seen",
1481 TRUE, @{$lang->config_vars});
1483 # Call the finisher.
1486 # Flags listed in `->flags' are user variables (per GNU Standards),
1487 # they should not be overridden in the Makefile...
1488 my @dont_override = @{$lang->flags};
1489 # ... and so is LDFLAGS.
1490 push @dont_override, 'LDFLAGS' if $lang->link;
1492 check_user_variables @dont_override;
1495 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1496 # suffix rule was learned), don't bother with the C stuff. But if
1497 # anything else creeps in, then use it.
1499 if $need_link || suffix_rules_count > 1;
1503 &define_compiler_variable ($languages{'c'})
1504 unless defined $done{$languages{'c'}};
1505 define_linker_variable ($languages{'c'});
1510 # append_exeext { PREDICATE } $MACRO
1511 # ----------------------------------
1512 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1513 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1516 # This is typically used on all filenames of *_PROGRAMS, and filenames
1517 # of TESTS that are programs.
1518 sub append_exeext (&$)
1520 my ($pred, $macro) = @_;
1522 transform_variable_recursively
1523 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1525 my ($subvar, $val, $cond, $full_cond) = @_;
1526 # Append $(EXEEXT) unless the user did it already, or it's a
1529 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1535 # Check to make sure a source defined in LIBOBJS is not explicitly
1536 # mentioned. This is a separate function (as opposed to being inlined
1537 # in handle_source_transform) because it isn't always appropriate to
1539 sub check_libobjs_sources
1541 my ($one_file, $unxformed) = @_;
1543 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1544 'dist_EXTRA_', 'nodist_EXTRA_')
1547 my $varname = $prefix . $one_file . '_SOURCES';
1548 my $var = var ($varname);
1551 @files = $var->value_as_list_recursive;
1553 elsif ($prefix eq '')
1555 @files = ($unxformed . '.c');
1562 foreach my $file (@files)
1564 err_var ($prefix . $one_file . '_SOURCES',
1565 "automatically discovered file `$file' should not" .
1566 " be explicitly mentioned")
1567 if defined $libsources{$file};
1574 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1575 # -----------------------------------------------------------------------------
1576 # Does much of the actual work for handle_source_transform.
1578 # $VAR is the name of the variable that the source filenames come from
1579 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1580 # $DERIVED is the name of resulting executable or library
1581 # $OBJ is the object extension (e.g., `$U.lo')
1582 # $FILE the source file to transform
1583 # %TRANSFORM contains extras arguments to pass to file_contents
1584 # when producing explicit rules
1585 # Result is a list of the names of objects
1586 # %linkers_used will be updated with any linkers needed
1587 sub handle_single_transform ($$$$$%)
1589 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1590 my @files = ($_file);
1592 my $nonansi_obj = $obj;
1593 $nonansi_obj =~ s/\$U//g;
1595 # Turn sources into objects. We use a while loop like this
1596 # because we might add to @files in the loop.
1597 while (scalar @files > 0)
1601 # Configure substitutions in _SOURCES variables are errors.
1604 my $parent_msg = '';
1605 $parent_msg = "\nand is referred to from `$topparent'"
1606 if $topparent ne $var->name;
1608 "`" . $var->name . "' includes configure substitution `$_'"
1609 . $parent_msg . ";\nconfigure " .
1610 "substitutions are not allowed in _SOURCES variables");
1614 # If the source file is in a subdirectory then the `.o' is put
1615 # into the current directory, unless the subdir-objects option
1618 # Split file name into base and extension.
1619 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1621 my $directory = $1 || '';
1625 # We must generate a rule for the object if it requires its own flags.
1627 my ($linker, $object);
1629 # This records whether we've seen a derived source file (e.g.
1631 my $derived_source = 0;
1633 # This holds the `aggregate context' of the file we are
1634 # currently examining. If the file is compiled with
1635 # per-object flags, then it will be the name of the object.
1636 # Otherwise it will be `AM'. This is used by the target hook
1637 # language function.
1638 my $aggregate = 'AM';
1640 $extension = &derive_suffix ($extension, $nonansi_obj);
1642 if ($extension_map{$extension} &&
1643 ($lang = $languages{$extension_map{$extension}}))
1645 # Found the language, so see what it says.
1646 &saw_extension ($extension);
1648 # Do we have per-executable flags for this executable?
1649 my $have_per_exec_flags = 0;
1650 my @peflags = @{$lang->flags};
1651 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1652 foreach my $flag (@peflags)
1654 if (set_seen ("${derived}_$flag"))
1656 $have_per_exec_flags = 1;
1661 # Note: computed subr call. The language rewrite function
1662 # should return one of the LANG_* constants. It could
1663 # also return a list whose first value is such a constant
1664 # and whose second value is a new source extension which
1665 # should be applied. This means this particular language
1666 # generates another source file which we must then process
1668 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1669 my ($r, $source_extension)
1670 = &$subr ($directory, $base, $extension,
1671 $nonansi_obj, $have_per_exec_flags, $var);
1672 # Skip this entry if we were asked not to process it.
1673 next if $r == LANG_IGNORE;
1675 # Now extract linker and other info.
1676 $linker = $lang->linker;
1679 if (defined $source_extension)
1681 $this_obj_ext = $source_extension;
1682 $derived_source = 1;
1686 $this_obj_ext = $obj;
1690 $this_obj_ext = $nonansi_obj;
1692 $object = $base . $this_obj_ext;
1694 if ($have_per_exec_flags)
1696 # We have a per-executable flag in effect for this
1697 # object. In this case we rewrite the object's
1698 # name to ensure it is unique.
1700 # We choose the name `DERIVED_OBJECT' to ensure
1701 # (1) uniqueness, and (2) continuity between
1702 # invocations. However, this will result in a
1703 # name that is too long for losing systems, in
1704 # some situations. So we provide _SHORTNAME to
1707 my $dname = $derived;
1708 my $var = var ($derived . '_SHORTNAME');
1711 # FIXME: should use the same Condition as
1712 # the _SOURCES variable. But this is really
1713 # silly overkill -- nobody should have
1714 # conditional shortnames.
1715 $dname = $var->variable_value;
1717 $object = $dname . '-' . $object;
1719 prog_error ($lang->name . " flags defined without compiler")
1720 if ! defined $lang->compile;
1725 # If rewrite said it was ok, put the object into a
1727 if ($r == LANG_SUBDIR && $directory ne '')
1729 $object = $directory . '/' . $object;
1732 # If the object file has been renamed (because per-target
1733 # flags are used) we cannot compile the file with an
1734 # inference rule: we need an explicit rule.
1736 # If the source is in a subdirectory and the object is in
1737 # the current directory, we also need an explicit rule.
1739 # If both source and object files are in a subdirectory
1740 # (this happens when the subdir-objects option is used),
1741 # then the inference will work.
1743 # The latter case deserves a historical note. When the
1744 # subdir-objects option was added on 1999-04-11 it was
1745 # thought that inferences rules would work for
1746 # subdirectory objects too. Later, on 1999-11-22,
1747 # automake was changed to output explicit rules even for
1748 # subdir-objects. Nobody remembers why, but this occured
1749 # soon after the merge of the user-dep-gen-branch so it
1750 # might be related. In late 2003 people complained about
1751 # the size of the generated Makefile.ins (libgcj, with
1752 # 2200+ subdir objects was reported to have a 9MB
1753 # Makefile), so we now rely on inference rules again.
1754 # Maybe we'll run across the same issue as in the past,
1755 # but at least this time we can document it. However since
1756 # dependency tracking has evolved it is possible that
1757 # our old problem no longer exists.
1758 # Using inference rules for subdir-objects has been tested
1759 # with GNU make, Solaris make, Ultrix make, BSD make,
1760 # HP-UX make, and OSF1 make successfully.
1762 || ($directory ne '' && ! option 'subdir-objects')
1763 # We must also use specific rules for a nodist_ source
1764 # if its language requests it.
1765 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1767 my $obj_sans_ext = substr ($object, 0,
1768 - length ($this_obj_ext));
1769 my $full_ansi = $full;
1770 if ($lang->ansi && option 'ansi2knr')
1772 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1773 $obj_sans_ext .= '$U';
1776 my @specifics = ($full_ansi, $obj_sans_ext,
1777 # Only use $this_obj_ext in the derived
1778 # source case because in the other case we
1779 # *don't* want $(OBJEXT) to appear here.
1780 ($derived_source ? $this_obj_ext : '.o'));
1782 # If we renamed the object then we want to use the
1783 # per-executable flag name. But if this is simply a
1784 # subdir build then we still want to use the AM_ flag
1788 unshift @specifics, $derived;
1789 $aggregate = $derived;
1793 unshift @specifics, 'AM';
1796 # Each item on this list is a reference to a list consisting
1797 # of four values followed by additional transform flags for
1798 # file_contents. The four values are the derived flag prefix
1799 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1800 # source file, the base name of the output file, and
1801 # the extension for the object file.
1802 push (@{$lang_specific_files{$lang->name}},
1803 [@specifics, %transform]);
1806 elsif ($extension eq $nonansi_obj)
1808 # This is probably the result of a direct suffix rule.
1809 # In this case we just accept the rewrite.
1810 $object = "$base$extension";
1811 $object = "$directory/$object" if $directory ne '';
1816 # No error message here. Used to have one, but it was
1818 # FIXME: we could potentially do more processing here,
1819 # perhaps treating the new extension as though it were a
1820 # new source extension (as above). This would require
1821 # more restructuring than is appropriate right now.
1825 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1826 if (defined $object_map{$object}
1827 && $object_map{$object} ne $full);
1829 my $comp_val = (($object =~ /\.lo$/)
1830 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1831 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1832 if (defined $object_compilation_map{$comp_obj}
1833 && $object_compilation_map{$comp_obj} != 0
1834 # Only see the error once.
1835 && ($object_compilation_map{$comp_obj}
1836 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1837 && $object_compilation_map{$comp_obj} != $comp_val)
1839 err_am "object `$comp_obj' created both with libtool and without";
1841 $object_compilation_map{$comp_obj} |= $comp_val;
1845 # Let the language do some special magic if required.
1846 $lang->target_hook ($aggregate, $object, $full, %transform);
1849 if ($derived_source)
1851 prog_error ($lang->name . " has automatic dependency tracking")
1852 if $lang->autodep ne 'no';
1853 # Make sure this new source file is handled next. That will
1854 # make it appear to be at the right place in the list.
1855 unshift (@files, $object);
1856 # Distribute derived sources unless the source they are
1857 # derived from is not.
1858 &push_dist_common ($object)
1859 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1863 $linkers_used{$linker} = 1;
1865 push (@result, $object);
1867 if (! defined $object_map{$object})
1870 $object_map{$object} = $full;
1872 # If resulting object is in subdir, we need to make
1873 # sure the subdir exists at build time.
1874 if ($object =~ /\//)
1876 # FIXME: check that $DIRECTORY is somewhere in the
1879 # For Java, the way we're handling it right now, a
1880 # `..' component doesn't make sense.
1881 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1883 err_am "`$full' should not contain a `..' component";
1886 # Make sure object is removed by `make mostlyclean'.
1887 $compile_clean_files{$object} = MOSTLY_CLEAN;
1888 # If we have a libtool object then we also must remove
1890 if ($object =~ /\.lo$/)
1892 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1893 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1895 # Remove any libtool object in this directory.
1896 $libtool_clean_directories{$directory} = 1;
1899 push (@dep_list, require_build_directory ($directory));
1901 # If we're generating dependencies, we also want
1902 # to make sure that the appropriate subdir of the
1903 # .deps directory is created.
1905 require_build_directory ($directory . '/$(DEPDIR)'))
1906 unless option 'no-dependencies';
1909 &pretty_print_rule ($object . ':', "\t", @dep_list)
1910 if scalar @dep_list > 0;
1913 # Transform .o or $o file into .P file (for automatic
1915 if ($lang && $lang->autodep ne 'no')
1917 my $depfile = $object;
1918 $depfile =~ s/\.([^.]*)$/.P$1/;
1919 $depfile =~ s/\$\(OBJEXT\)$/o/;
1920 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1921 . basename ($depfile)} = 1;
1930 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1931 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1932 # ---------------------------------------------------------------------------
1933 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1936 # $VAR is the name of the _SOURCES variable
1937 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1938 # it will be generated and returned).
1939 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1940 # work done to determine the linker will be).
1941 # $ONE_FILE is the canonical (transformed) name of object to build
1942 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1943 # $TOPPARENT is the _SOURCES variable being processed.
1944 # $WHERE context into which this definition is done
1945 # %TRANSFORM extra arguments to pass to file_contents when producing
1948 # Result is a pair ($LINKER, $OBJVAR):
1949 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1950 sub define_objects_from_sources ($$$$$$$%)
1952 my ($var, $objvar, $nodefine, $one_file,
1953 $obj, $topparent, $where, %transform) = @_;
1955 my $needlinker = "";
1957 transform_variable_recursively
1958 ($var, $objvar, 'am__objects', $nodefine, $where,
1959 # The transform code to run on each filename.
1961 my ($subvar, $val, $cond, $full_cond) = @_;
1962 my @trans = handle_single_transform ($subvar, $topparent,
1963 $one_file, $obj, $val,
1965 $needlinker = "true" if @trans;
1973 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
1974 # -----------------------------------------------------------------------------
1975 # Handle SOURCE->OBJECT transform for one program or library.
1977 # canonical (transformed) name of target to build
1978 # actual target of object to build
1979 # object extension (i.e., either `.o' or `$o')
1980 # location of the source variable
1981 # extra arguments to pass to file_contents when producing rules
1982 # Return the name of the linker variable that must be used.
1983 # Empty return means just use `LINK'.
1984 sub handle_source_transform ($$$$%)
1986 # one_file is canonical name. unxformed is given name. obj is
1988 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
1992 # No point in continuing if _OBJECTS is defined.
1993 return if reject_var ($one_file . '_OBJECTS',
1994 $one_file . '_OBJECTS should not be defined');
1999 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2000 'dist_EXTRA_', 'nodist_EXTRA_')
2002 my $varname = $prefix . $one_file . "_SOURCES";
2003 my $var = var $varname;
2006 # We are going to define _OBJECTS variables using the prefix.
2007 # Then we glom them all together. So we can't use the null
2008 # prefix here as we need it later.
2009 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2011 # Keep track of which prefixes we saw.
2012 $used_pfx{$xpfx} = 1
2013 unless $prefix =~ /EXTRA_/;
2015 push @sources, "\$($varname)";
2016 push @dist_sources, shadow_unconditionally ($varname, $where)
2017 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2020 define_objects_from_sources ($varname,
2021 $xpfx . $one_file . '_OBJECTS',
2022 $prefix =~ /EXTRA_/,
2023 $one_file, $obj, $varname, $where,
2024 DIST_SOURCE => ($prefix !~ /^nodist_/),
2029 $linker ||= &resolve_linker (%linkers_used);
2032 my @keys = sort keys %used_pfx;
2033 if (scalar @keys == 0)
2035 # The default source for libfoo.la is libfoo.c, but for
2036 # backward compatibility we first look at libfoo_la.c
2037 my $old_default_source = "$one_file.c";
2038 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
2039 if ($old_default_source ne $default_source
2040 && (rule $old_default_source
2041 || rule '$(srcdir)/' . $old_default_source
2042 || rule '${srcdir}/' . $old_default_source
2043 || -f $old_default_source))
2045 my $loc = $where->clone;
2047 msg ('obsolete', $loc,
2048 "the default source for `$unxformed' has been changed "
2049 . "to `$default_source'.\n(Using `$old_default_source' for "
2050 . "backward compatibility.)");
2051 $default_source = $old_default_source;
2053 # If a rule exists to build this source with a $(srcdir)
2054 # prefix, use that prefix in our variables too. This is for
2055 # the sake of BSD Make.
2056 if (rule '$(srcdir)/' . $default_source
2057 || rule '${srcdir}/' . $default_source)
2059 $default_source = '$(srcdir)/' . $default_source;
2062 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2063 push (@sources, $default_source);
2064 push (@dist_sources, $default_source);
2068 handle_single_transform ($one_file . '_SOURCES',
2069 $one_file . '_SOURCES',
2071 $default_source, %transform);
2072 $linker ||= &resolve_linker (%linkers_used);
2073 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2077 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2078 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2081 # If we want to use `LINK' we must make sure it is defined.
2091 # handle_lib_objects ($XNAME, $VAR)
2092 # ---------------------------------
2093 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2094 # Also, generate _DEPENDENCIES variable if appropriate.
2096 # transformed name of object being built, or empty string if no object
2097 # name of _LDADD/_LIBADD-type variable to examine
2098 # Returns 1 if LIBOBJS seen, 0 otherwise.
2099 sub handle_lib_objects
2101 my ($xname, $varname) = @_;
2103 my $var = var ($varname);
2104 prog_error "handle_lib_objects: `$varname' undefined"
2106 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2107 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2108 my $prefix = $1 || 'AM_';
2110 my $seen_libobjs = 0;
2113 transform_variable_recursively
2114 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2116 # Transformation function, run on each filename.
2118 my ($subvar, $val, $cond, $full_cond) = @_;
2122 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2123 if ($val !~ /^-[lL]/ &&
2124 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2125 # for Libtool libraries or programs. (Actually we are a bit
2126 # laxest here since this code also applies to non-libtool
2127 # libraries or programs, for which -dlopen and -dlopreopen
2128 # are pure non-sence. Diagnosting this doesn't seems very
2129 # important: the developer will quickly get complaints from
2131 $val !~ /^-dl(?:pre)?open$/ &&
2132 # Only get this error once.
2136 # FIXME: should display a stack of nested variables
2137 # as context when $var != $subvar.
2138 err_var ($var, "linker flags such as `$val' belong in "
2139 . "`${prefix}LDFLAGS");
2143 elsif ($val !~ /^\@.*\@$/)
2145 # Assume we have a file of some sort, and output it into the
2146 # dependency variable. Autoconf substitutions are not output;
2147 # rarely is a new dependency substituted into e.g. foo_LDADD
2148 # -- but bad things (e.g. -lX11) are routinely substituted.
2149 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2150 # and handled specially below.
2153 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2155 handle_LIBOBJS ($subvar, $cond, $1);
2159 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2161 handle_ALLOCA ($subvar, $cond, $1);
2170 return $seen_libobjs;
2173 # handle_LIBOBJS_or_ALLOCA ($VAR)
2174 # -------------------------------
2175 # Definitions common to LIBOBJS and ALLOCA.
2176 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2177 sub handle_LIBOBJS_or_ALLOCA ($)
2181 my $dir = $config_libobj_dir ? "$config_libobj_dir/" : '';
2183 # If LIBOBJS files must be built in another directory we have
2184 # to define LIBOBJDIR and ensure the files get cleaned.
2185 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2186 # is achieved by `rm -f *.($OBJEXT)' in compile.am.
2187 if ($config_libobj_dir
2188 && $relative_dir ne $config_libobj_dir)
2190 if (option 'subdir-objects')
2192 # In the top-level Makefile we do not use $(top_builddir), because
2193 # we are already there, and since the targets are built without
2194 # a $(top_builddir), it helps BSD Make to match them with
2196 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2197 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2198 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2199 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2200 # be created by libtool as a side-effect of creating LTLIBOBJS).
2201 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2206 error ("`\$($var)' cannot be used outside `$dir' if"
2207 . " `subdir-objects' is not set");
2214 sub handle_LIBOBJS ($$$)
2216 my ($var, $cond, $lt) = @_;
2217 my $myobjext = $lt ? 'lo' : 'o';
2220 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2221 if ! keys %libsources;
2223 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2225 foreach my $iter (keys %libsources)
2227 if ($iter =~ /\.[cly]$/)
2229 &saw_extension ($&);
2230 &saw_extension ('.c');
2233 if ($iter =~ /\.h$/)
2235 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2237 elsif ($iter ne 'alloca.c')
2239 my $rewrite = $iter;
2240 $rewrite =~ s/\.c$/.P$myobjext/;
2241 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2242 $rewrite = "^" . quotemeta ($iter) . "\$";
2243 # Only require the file if it is not a built source.
2244 my $bs = var ('BUILT_SOURCES');
2245 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2247 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2253 sub handle_ALLOCA ($$$)
2255 my ($var, $cond, $lt) = @_;
2256 my $myobjext = $lt ? 'lo' : 'o';
2258 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2260 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2261 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2262 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2263 &saw_extension ('.c');
2266 # Canonicalize the input parameter
2270 $string =~ tr/A-Za-z0-9_\@/_/c;
2274 # Canonicalize a name, and check to make sure the non-canonical name
2275 # is never used. Returns canonical name. Arguments are name and a
2276 # list of suffixes to check for.
2277 sub check_canonical_spelling
2279 my ($name, @suffixes) = @_;
2281 my $xname = &canonicalize ($name);
2282 if ($xname ne $name)
2284 foreach my $xt (@suffixes)
2286 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2296 # Set up the compile suite.
2297 sub handle_compile ()
2300 unless $get_object_extension_was_run;
2303 my $default_includes = '';
2304 if (! option 'nostdinc')
2308 my $var = var 'CONFIG_HEADER';
2311 foreach my $hdr (split (' ', $var->variable_value))
2313 push @incs, '-I' . dirname ($hdr);
2316 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2317 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2318 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2319 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2320 # to just append @am__isrc@.
2321 $default_includes = ' ' . uniq (@incs) . '@am__isrc@';
2324 my (@mostly_rms, @dist_rms);
2325 foreach my $item (sort keys %compile_clean_files)
2327 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2329 push (@mostly_rms, "\t-rm -f $item");
2331 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2333 push (@dist_rms, "\t-rm -f $item");
2337 prog_error 'invalid entry in %compile_clean_files';
2341 my ($coms, $vars, $rules) =
2342 &file_contents_internal (1, "$libdir/am/compile.am",
2343 new Automake::Location,
2344 ('DEFAULT_INCLUDES' => $default_includes,
2345 'MOSTLYRMS' => join ("\n", @mostly_rms),
2346 'DISTRMS' => join ("\n", @dist_rms)));
2347 $output_vars .= $vars;
2348 $output_rules .= "$coms$rules";
2350 # Check for automatic de-ANSI-fication.
2351 if (option 'ansi2knr')
2353 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2354 my $ansi2knr_dir = '';
2356 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2357 TRUE, "ANSI2KNR", "U");
2359 # topdir is where ansi2knr should be.
2360 if ($ansi2knr_filename eq 'ansi2knr')
2362 # Only require ansi2knr files if they should appear in
2364 require_file ($ansi2knr_where, FOREIGN,
2365 'ansi2knr.c', 'ansi2knr.1');
2367 # ansi2knr needs to be built before subdirs, so unshift it.
2368 unshift (@all, '$(ANSI2KNR)');
2372 $ansi2knr_dir = dirname ($ansi2knr_filename);
2375 $output_rules .= &file_contents ('ansi2knr',
2376 new Automake::Location,
2377 'ANSI2KNR-DIR' => $ansi2knr_dir);
2384 # Handle libtool rules.
2387 return unless var ('LIBTOOL');
2389 # Libtool requires some files, but only at top level.
2390 # (Starting with Libtool 2.0 we do not have to bother. These
2391 # requirements are done with AC_REQUIRE_AUX_FILE.)
2392 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2393 if $relative_dir eq '.' && ! $libtool_new_api;
2396 foreach my $item (sort keys %libtool_clean_directories)
2398 my $dir = ($item eq '.') ? '' : "$item/";
2399 # .libs is for Unix, _libs for DOS.
2400 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2403 check_user_variables 'LIBTOOLFLAGS';
2405 # Output the libtool compilation rules.
2406 $output_rules .= &file_contents ('libtool',
2407 new Automake::Location,
2408 LTRMS => join ("\n", @libtool_rms));
2411 # handle_programs ()
2412 # ------------------
2413 # Handle C programs.
2416 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2417 'bin', 'sbin', 'libexec', 'pkglib',
2419 return if ! @proglist;
2421 my $seen_global_libobjs =
2422 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2424 foreach my $pair (@proglist)
2426 my ($where, $one_file) = @$pair;
2428 my $seen_libobjs = 0;
2429 my $obj = get_object_extension '.$(OBJEXT)';
2431 # Strip any $(EXEEXT) suffix the user might have added, or this
2432 # will confuse &handle_source_transform and &check_canonical_spelling.
2433 # We'll add $(EXEEXT) back later anyway.
2434 $one_file =~ s/\$\(EXEEXT\)$//;
2436 $known_programs{$one_file} = $where;
2438 # Canonicalize names and check for misspellings.
2439 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2440 '_SOURCES', '_OBJECTS',
2443 $where->push_context ("while processing program `$one_file'");
2444 $where->set (INTERNAL->get);
2446 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2447 NONLIBTOOL => 1, LIBTOOL => 0);
2449 if (var ($xname . "_LDADD"))
2451 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2455 # User didn't define prog_LDADD override. So do it.
2456 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2458 # This does a bit too much work. But we need it to
2459 # generate _DEPENDENCIES when appropriate.
2462 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2466 reject_var ($xname . '_LIBADD',
2467 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2469 set_seen ($xname . '_DEPENDENCIES');
2470 set_seen ($xname . '_LDFLAGS');
2472 # Determine program to use for link.
2473 my $xlink = &define_per_target_linker_variable ($linker, $xname);
2475 # If the resulting program lies into a subdirectory,
2476 # make sure this directory will exist.
2477 my $dirstamp = require_build_directory_maybe ($one_file);
2479 $output_rules .= &file_contents ('program',
2481 PROGRAM => $one_file,
2484 DIRSTAMP => $dirstamp,
2485 EXEEXT => '$(EXEEXT)');
2487 if ($seen_libobjs || $seen_global_libobjs)
2489 if (var ($xname . '_LDADD'))
2491 &check_libobjs_sources ($xname, $xname . '_LDADD');
2493 elsif (var ('LDADD'))
2495 &check_libobjs_sources ($xname, 'LDADD');
2502 # handle_libraries ()
2503 # -------------------
2505 sub handle_libraries
2507 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2508 'lib', 'pkglib', 'noinst', 'check');
2509 return if ! @liblist;
2511 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2516 my $var = rvar ($prefix[0] . '_LIBRARIES');
2517 $var->requires_variables ('library used', 'RANLIB');
2520 &define_variable ('AR', 'ar', INTERNAL);
2521 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2523 foreach my $pair (@liblist)
2525 my ($where, $onelib) = @$pair;
2527 my $seen_libobjs = 0;
2528 # Check that the library fits the standard naming convention.
2529 my $bn = basename ($onelib);
2530 if ($bn !~ /^lib.*\.a$/)
2532 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2533 my $suggestion = dirname ($onelib) . "/$bn";
2534 $suggestion =~ s|^\./||g;
2535 msg ('error-gnu/warn', $where,
2536 "`$onelib' is not a standard library name\n"
2537 . "did you mean `$suggestion'?")
2540 $where->push_context ("while processing library `$onelib'");
2541 $where->set (INTERNAL->get);
2543 my $obj = get_object_extension '.$(OBJEXT)';
2545 # Canonicalize names and check for misspellings.
2546 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2547 '_OBJECTS', '_DEPENDENCIES',
2550 if (! var ($xlib . '_AR'))
2552 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2555 # Generate support for conditional object inclusion in
2557 if (var ($xlib . '_LIBADD'))
2559 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2566 &define_variable ($xlib . "_LIBADD", '', $where);
2569 reject_var ($xlib . '_LDADD',
2570 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2572 # Make sure we at look at this.
2573 set_seen ($xlib . '_DEPENDENCIES');
2575 &handle_source_transform ($xlib, $onelib, $obj, $where,
2576 NONLIBTOOL => 1, LIBTOOL => 0);
2578 # If the resulting library lies into a subdirectory,
2579 # make sure this directory will exist.
2580 my $dirstamp = require_build_directory_maybe ($onelib);
2582 $output_rules .= &file_contents ('library',
2586 DIRSTAMP => $dirstamp);
2590 if (var ($xlib . '_LIBADD'))
2592 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2599 # handle_ltlibraries ()
2600 # ---------------------
2601 # Handle shared libraries.
2602 sub handle_ltlibraries
2604 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2605 'noinst', 'lib', 'pkglib', 'check');
2606 return if ! @liblist;
2608 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2613 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2614 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2619 my %liblocations = (); # Location (in Makefile.am) of each library.
2621 foreach my $key (@prefix)
2623 # Get the installation directory of each library.
2624 (my $dir = $key) =~ s/^nobase_//;
2625 my $var = rvar ($key . '_LTLIBRARIES');
2627 # We reject libraries which are installed in several places
2628 # in the same condition, because we can only specify one
2630 $var->traverse_recursively
2633 my ($var, $val, $cond, $full_cond) = @_;
2634 my $hcond = $full_cond->human;
2635 my $where = $var->rdef ($cond)->location;
2636 # A library cannot be installed in different directory
2637 # in overlapping conditions.
2638 if (exists $instconds{$val})
2641 $instconds{$val}->ambiguous_p ($val, $full_cond);
2645 error ($where, $msg, partial => 1);
2647 my $dirtxt = "installed in `$dir'";
2648 $dirtxt = "built for `$dir'"
2649 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2651 $full_cond->true ? "" : " in condition $hcond";
2653 error ($where, "`$val' should be $dirtxt$dircond ...",
2656 my $hacond = $acond->human;
2657 my $adir = $instdirs{$val}{$acond};
2658 my $adirtxt = "installed in `$adir'";
2659 $adirtxt = "built for `$adir'"
2660 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2661 || $adir eq 'check');
2662 my $adircond = $acond->true ? "" : " in condition $hacond";
2664 my $onlyone = ($dir ne $adir) ?
2665 ("\nLibtool libraries can be built for only one "
2666 . "destination.") : "";
2668 error ($liblocations{$val}{$acond},
2669 "... and should also be $adirtxt$adircond.$onlyone");
2675 $instconds{$val} = new Automake::DisjConditions;
2677 $instdirs{$val}{$full_cond} = $dir;
2678 $liblocations{$val}{$full_cond} = $where;
2679 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2685 skip_ac_subst => 1);
2688 foreach my $pair (@liblist)
2690 my ($where, $onelib) = @$pair;
2692 my $seen_libobjs = 0;
2693 my $obj = get_object_extension '.lo';
2695 # Canonicalize names and check for misspellings.
2696 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2697 '_SOURCES', '_OBJECTS',
2700 # Check that the library fits the standard naming convention.
2701 my $libname_rx = '^lib.*\.la';
2702 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2703 my $ldvar2 = var ('LDFLAGS');
2704 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2705 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2707 # Relax name checking for libtool modules.
2708 $libname_rx = '\.la';
2711 my $bn = basename ($onelib);
2712 if ($bn !~ /$libname_rx$/)
2714 my $type = 'library';
2715 if ($libname_rx eq '\.la')
2717 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2722 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2724 my $suggestion = dirname ($onelib) . "/$bn";
2725 $suggestion =~ s|^\./||g;
2726 msg ('error-gnu/warn', $where,
2727 "`$onelib' is not a standard libtool $type name\n"
2728 . "did you mean `$suggestion'?")
2731 $where->push_context ("while processing Libtool library `$onelib'");
2732 $where->set (INTERNAL->get);
2734 # Make sure we look at these.
2735 set_seen ($xlib . '_LDFLAGS');
2736 set_seen ($xlib . '_DEPENDENCIES');
2738 # Generate support for conditional object inclusion in
2740 if (var ($xlib . '_LIBADD'))
2742 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2749 &define_variable ($xlib . "_LIBADD", '', $where);
2752 reject_var ("${xlib}_LDADD",
2753 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2756 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2757 NONLIBTOOL => 0, LIBTOOL => 1);
2759 # Determine program to use for link.
2760 my $xlink = &define_per_target_linker_variable ($linker, $xlib);
2762 my $rpathvar = "am_${xlib}_rpath";
2763 my $rpath = "\$($rpathvar)";
2764 foreach my $rcond ($instconds{$onelib}->conds)
2767 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2768 || $instdirs{$onelib}{$rcond} eq 'noinst'
2769 || $instdirs{$onelib}{$rcond} eq 'check')
2771 # It's an EXTRA_ library, so we can't specify -rpath,
2772 # because we don't know where the library will end up.
2773 # The user probably knows, but generally speaking automake
2774 # doesn't -- and in fact configure could decide
2775 # dynamically between two different locations.
2780 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2784 # If $rcond is true there is only one condition and
2785 # there is no point defining an helper variable.
2790 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2794 # If the resulting library lies into a subdirectory,
2795 # make sure this directory will exist.
2796 my $dirstamp = require_build_directory_maybe ($onelib);
2798 # Remember to cleanup .libs/ in this directory.
2799 my $dirname = dirname $onelib;
2800 $libtool_clean_directories{$dirname} = 1;
2802 $output_rules .= &file_contents ('ltlibrary',
2804 LTLIBRARY => $onelib,
2805 XLTLIBRARY => $xlib,
2808 DIRSTAMP => $dirstamp);
2811 if (var ($xlib . '_LIBADD'))
2813 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2819 # See if any _SOURCES variable were misspelled.
2822 # It is ok if the user sets this particular variable.
2823 set_seen 'AM_LDFLAGS';
2825 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2827 foreach my $var (variables $primary)
2829 my $varname = $var->name;
2830 # A configure variable is always legitimate.
2831 next if exists $configure_vars{$varname};
2833 for my $cond ($var->conditions->conds)
2835 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2836 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2837 . " program or\nlibrary has `$1' as canonic name"
2838 . " (possible typo)")
2839 unless $var->rdef ($cond)->seen;
2849 # NOTE we no longer automatically clean SCRIPTS, because it is
2850 # useful to sometimes distribute scripts verbatim. This happens
2851 # e.g. in Automake itself.
2852 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2853 'bin', 'sbin', 'libexec', 'pkgdata',
2860 ## ------------------------ ##
2861 ## Handling Texinfo files. ##
2862 ## ------------------------ ##
2864 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2865 # &scan_texinfo_file ($FILENAME)
2866 # ------------------------------
2867 # $OUTFILE - name of the info file produced by $FILENAME.
2868 # $VFILE - name of the version.texi file used (undef if none).
2869 # @CLEAN_FILES - list of byproducts (indexes etc.)
2870 sub scan_texinfo_file ($)
2872 my ($filename) = @_;
2874 # Some of the following extensions are always created, no matter
2875 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2876 # are only created when they are used. We used to scan $FILENAME
2877 # for their use, but that is not enough: they could be used in
2878 # included files. We can't scan included files because we don't
2879 # know the include path. Therefore we always erase these files, no
2880 # matter whether they are used or not.
2882 # (tmp is only created if an @macro is used and a certain e-TeX
2883 # feature is not available.)
2884 my %clean_suffixes =
2885 map { $_ => 1 } (qw(aux log toc tmp
2891 pg pgs)); # grep 'new.*index' texinfo.tex
2893 my $texi = new Automake::XFile "< $filename";
2894 verb "reading $filename";
2896 my ($outfile, $vfile);
2897 while ($_ = $texi->getline)
2899 if (/^\@setfilename +(\S+)/)
2901 # Honor only the first @setfilename. (It's possible to have
2902 # more occurrences later if the manual shows examples of how
2903 # to use @setfilename...)
2907 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2909 error ("$filename:$.",
2910 "output `$outfile' has unrecognized extension");
2914 # A "version.texi" file is actually any file whose name matches
2916 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2921 # Try to find new or unused indexes.
2923 # Creating a new category of index.
2924 elsif (/^\@def(code)?index (\w+)/)
2926 $clean_suffixes{$2} = 1;
2927 $clean_suffixes{"$2s"} = 1;
2930 # Merging an index into an another.
2931 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2933 delete $clean_suffixes{"$2s"};
2934 $clean_suffixes{"$3s"} = 1;
2941 err_am "`$filename' missing \@setfilename";
2945 my $infobase = basename ($filename);
2946 $infobase =~ s/\.te?xi(nfo)?$//;
2947 return ($outfile, $vfile,
2948 map { "$infobase.$_" } (sort keys %clean_suffixes));
2952 # ($DIRSTAMP, @CLEAN_FILES)
2953 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2954 # ------------------------------------------------------------------
2955 # SOURCE - the source Texinfo file
2956 # DEST - the destination Info file
2957 # INSRC - wether DEST should be built in the source tree
2958 # DEPENDENCIES - known dependencies
2959 sub output_texinfo_build_rules ($$$@)
2961 my ($source, $dest, $insrc, @deps) = @_;
2963 # Split `a.texi' into `a' and `.texi'.
2964 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2965 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2970 # We can output two kinds of rules: the "generic" rules use Make
2971 # suffix rules and are appropriate when $source and $dest do not lie
2972 # in a sub-directory; the "specific" rules are needed in the other
2975 # The former are output only once (this is not really apparent here,
2976 # but just remember that some logic deeper in Automake will not
2977 # output the same rule twice); while the later need to be output for
2978 # each Texinfo source.
2981 my $sdir = dirname $source;
2982 if ($sdir eq '.' && dirname ($dest) eq '.')
2985 $makeinfoflags = '-I $(srcdir)';
2990 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
2993 # A directory can contain two kinds of info files: some built in the
2994 # source tree, and some built in the build tree. The rules are
2995 # different in each case. However we cannot output two different
2996 # set of generic rules. Because in-source builds are more usual, we
2997 # use generic rules in this case and fall back to "specific" rules
2998 # for build-dir builds. (It should not be a problem to invert this
3000 $generic = 0 unless $insrc;
3002 # We cannot use a suffix rule to build info files with an empty
3003 # extension. Otherwise we would output a single suffix inference
3004 # rule, with separate dependencies, as in
3008 # foo.info: foo.texi
3010 # which confuse Solaris make. (See the Autoconf manual for
3011 # details.) Therefore we use a specific rule in this case. This
3012 # applies to info files only (dvi and pdf files always have an
3014 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3016 # If the resulting file lie into a subdirectory,
3017 # make sure this directory will exist.
3018 my $dirstamp = require_build_directory_maybe ($dest);
3020 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3022 $output_rules .= file_contents ('texibuild',
3023 new Automake::Location,
3025 DEST_PREFIX => $dpfx,
3026 DEST_INFO_PREFIX => $dipfx,
3027 DEST_SUFFIX => $dsfx,
3028 DIRSTAMP => $dirstamp,
3029 GENERIC => $generic,
3030 GENERIC_INFO => $generic_info,
3032 MAKEINFOFLAGS => $makeinfoflags,
3035 SOURCE_INFO => ($generic_info
3037 SOURCE_REAL => $source,
3038 SOURCE_SUFFIX => $ssfx,
3040 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3045 # handle_texinfo_helper ($info_texinfos)
3046 # --------------------------------------
3047 # Handle all Texinfo source; helper for handle_texinfo.
3048 sub handle_texinfo_helper ($)
3050 my ($info_texinfos) = @_;
3051 my (@infobase, @info_deps_list, @texi_deps);
3056 # Build a regex matching user-cleaned files.
3057 my $d = var 'DISTCLEANFILES';
3058 my $c = var 'CLEANFILES';
3060 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3061 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3062 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3063 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3066 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3068 my $infobase = $texi;
3069 $infobase =~ s/\.(txi|texinfo|texi)$//;
3071 if ($infobase eq $texi)
3073 # FIXME: report line number.
3074 err_am "texinfo file `$texi' has unrecognized extension";
3078 push @infobase, $infobase;
3080 # If 'version.texi' is referenced by input file, then include
3081 # automatic versioning capability.
3082 my ($out_file, $vtexi, @clean_files) =
3083 scan_texinfo_file ("$relative_dir/$texi")
3085 push (@texi_cleans, @clean_files);
3087 # If the Texinfo source is in a subdirectory, create the
3088 # resulting info in this subdirectory. If it is in the current
3089 # directory, try hard to not prefix "./" because it breaks the
3091 my $outdir = dirname ($texi) . '/';
3092 $outdir = "" if $outdir eq './';
3093 $out_file = $outdir . $out_file;
3095 # Until Automake 1.6.3, .info files were built in the
3096 # source tree. This was an obstacle to the support of
3097 # non-distributed .info files, and non-distributed .texi
3100 # * Non-distributed .texi files is important in some packages
3101 # where .texi files are built at make time, probably using
3102 # other binaries built in the package itself, maybe using
3103 # tools or information found on the build host. Because
3104 # these files are not distributed they are always rebuilt
3105 # at make time; they should therefore not lie in the source
3106 # directory. One plan was to support this using
3107 # nodist_info_TEXINFOS or something similar. (Doing this
3108 # requires some sanity checks. For instance Automake should
3110 # dist_info_TEXINFO = foo.texi
3111 # nodist_foo_TEXINFO = included.texi
3112 # because a distributed file should never depend on a
3113 # non-distributed file.)
3115 # * If .texi files are not distributed, then .info files should
3116 # not be distributed either. There are also cases where one
3117 # want to distribute .texi files, but do not want to
3118 # distribute the .info files. For instance the Texinfo package
3119 # distributes the tool used to build these files; it would
3120 # be a waste of space to distribute them. It's not clear
3121 # which syntax we should use to indicate that .info files should
3122 # not be distributed. Akim Demaille suggested that eventually
3123 # we switch to a new syntax:
3124 # | Maybe we should take some inspiration from what's already
3125 # | done in the rest of Automake. Maybe there is too much
3126 # | syntactic sugar here, and you want
3127 # | nodist_INFO = bar.info
3128 # | dist_bar_info_SOURCES = bar.texi
3129 # | bar_texi_DEPENDENCIES = foo.texi
3130 # | with a bit of magic to have bar.info represent the whole
3131 # | bar*info set. That's a lot more verbose that the current
3132 # | situation, but it is # not new, hence the user has less
3135 # | But there is still too much room for meaningless specs:
3136 # | nodist_INFO = bar.info
3137 # | dist_bar_info_SOURCES = bar.texi
3138 # | dist_PS = bar.ps something-written-by-hand.ps
3139 # | nodist_bar_ps_SOURCES = bar.texi
3140 # | bar_texi_DEPENDENCIES = foo.texi
3141 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3143 # Back to the point, it should be clear that in order to support
3144 # non-distributed .info files, we need to build them in the
3145 # build tree, not in the source tree (non-distributed .texi
3146 # files are less of a problem, because we do not output build
3147 # rules for them). In Automake 1.7 .info build rules have been
3148 # largely cleaned up so that .info files get always build in the
3149 # build tree, even when distributed. The idea was that
3150 # (1) if during a VPATH build the .info file was found to be
3151 # absent or out-of-date (in the source tree or in the
3152 # build tree), Make would rebuild it in the build tree.
3153 # If an up-to-date source-tree of the .info file existed,
3154 # make would not rebuild it in the build tree.
3155 # (2) having two copies of .info files, one in the source tree
3156 # and one (newer) in the build tree is not a problem
3157 # because `make dist' always pick files in the build tree
3159 # However it turned out the be a bad idea for several reasons:
3160 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3161 # like GNU Make on point (1) above. These implementations
3162 # of Make would always rebuild .info files in the build
3163 # tree, even if such files were up to date in the source
3164 # tree. Consequently, it was impossible to perform a VPATH
3165 # build of a package containing Texinfo files using these
3166 # Make implementations.
3167 # (Refer to the Autoconf Manual, section "Limitation of
3168 # Make", paragraph "VPATH", item "target lookup", for
3169 # an account of the differences between these
3171 # * The GNU Coding Standards require these files to be built
3172 # in the source-tree (when they are distributed, that is).
3173 # * Keeping a fresher copy of distributed files in the
3174 # build tree can be annoying during development because
3175 # - if the files is kept under CVS, you really want it
3176 # to be updated in the source tree
3177 # - it is confusing that `make distclean' does not erase
3178 # all files in the build tree.
3180 # Consequently, starting with Automake 1.8, .info files are
3181 # built in the source tree again. Because we still plan to
3182 # support non-distributed .info files at some point, we
3183 # have a single variable ($INSRC) that controls whether
3184 # the current .info file must be built in the source tree
3185 # or in the build tree. Actually this variable is switched
3186 # off for .info files that appear to be cleaned; this is
3187 # for backward compatibility with package such as Texinfo,
3188 # which do things like
3189 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3190 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3191 # # Do not create info files for distribution.
3193 # in order not to distribute .info files.
3194 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3196 my $soutdir = '$(srcdir)/' . $outdir;
3197 $outdir = $soutdir if $insrc;
3199 # If user specified file_TEXINFOS, then use that as explicit
3202 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3204 my $canonical = canonicalize ($infobase);
3205 if (var ($canonical . "_TEXINFOS"))
3207 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3208 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3211 my ($dirstamp, @cfiles) =
3212 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3213 push (@texi_cleans, @cfiles);
3215 push (@info_deps_list, $out_file);
3217 # If a vers*.texi file is needed, emit the rule.
3220 err_am ("`$vtexi', included in `$texi', "
3221 . "also included in `$versions{$vtexi}'")
3222 if defined $versions{$vtexi};
3223 $versions{$vtexi} = $texi;
3225 # We number the stamp-vti files. This is doable since the
3226 # actual names don't matter much. We only number starting
3227 # with the second one, so that the common case looks nice.
3228 my $vti = ($done ? $done : 'vti');
3231 # This is ugly, but it is our historical practice.
3232 if ($config_aux_dir_set_in_configure_ac)
3234 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3239 require_file_with_macro (TRUE, 'info_TEXINFOS',
3240 FOREIGN, 'mdate-sh');
3244 if ($config_aux_dir_set_in_configure_ac)
3246 $conf_dir = "$am_config_aux_dir/";
3250 $conf_dir = '$(srcdir)/';
3252 $output_rules .= file_contents ('texi-vers',
3253 new Automake::Location,
3256 STAMPVTI => "${soutdir}stamp-$vti",
3257 VTEXI => "$soutdir$vtexi",
3259 DIRSTAMP => $dirstamp);
3263 # Handle location of texinfo.tex.
3264 my $need_texi_file = 0;
3266 if (var ('TEXINFO_TEX'))
3268 # The user defined TEXINFO_TEX so assume he knows what he is
3270 $texinfodir = ('$(srcdir)/'
3271 . dirname (variable_value ('TEXINFO_TEX')));
3273 elsif (option 'cygnus')
3275 $texinfodir = '$(top_srcdir)/../texinfo';
3276 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3278 elsif ($config_aux_dir_set_in_configure_ac)
3280 $texinfodir = $am_config_aux_dir;
3281 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3282 $need_texi_file = 2; # so that we require_conf_file later
3286 $texinfodir = '$(srcdir)';
3287 $need_texi_file = 1;
3289 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3291 push (@dist_targets, 'dist-info');
3293 if (! option 'no-installinfo')
3295 # Make sure documentation is made and installed first. Use
3296 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3297 # get run twice during "make all".
3298 unshift (@all, '$(INFO_DEPS)');
3301 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3302 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3303 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3304 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3306 # This next isn't strictly needed now -- the places that look here
3307 # could easily be changed to look in info_TEXINFOS. But this is
3308 # probably better, in case noinst_TEXINFOS is ever supported.
3309 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3311 # Do some error checking. Note that this file is not required
3312 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3314 if ($need_texi_file && ! option 'no-texinfo.tex')
3316 if ($need_texi_file > 1)
3318 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3323 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3328 return makefile_wrap ("", "\t ", @texi_cleans);
3334 # Handle all Texinfo source.
3335 sub handle_texinfo ()
3337 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3338 # FIXME: I think this is an obsolete future feature name.
3339 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3341 my $info_texinfos = var ('info_TEXINFOS');
3345 $texiclean = handle_texinfo_helper ($info_texinfos);
3347 $output_rules .= file_contents ('texinfos',
3348 new Automake::Location,
3349 TEXICLEAN => $texiclean,
3350 'LOCAL-TEXIS' => !!$info_texinfos);
3354 # Handle any man pages.
3355 sub handle_man_pages
3357 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3359 # Find all the sections in use. We do this by first looking for
3360 # "standard" sections, and then looking for any additional
3361 # sections used in man_MANS.
3362 my (%sections, %vlist);
3363 # We handle nodist_ for uniformity. man pages aren't distributed
3364 # by default so it isn't actually very important.
3365 foreach my $pfx ('', 'dist_', 'nodist_')
3367 # Add more sections as needed.
3368 foreach my $section ('0'..'9', 'n', 'l')
3370 my $varname = $pfx . 'man' . $section . '_MANS';
3373 $sections{$section} = 1;
3374 $varname = '$(' . $varname . ')';
3375 $vlist{$varname} = 1;
3377 &push_dist_common ($varname)
3382 my $varname = $pfx . 'man_MANS';
3383 my $var = var ($varname);
3386 foreach ($var->value_as_list_recursive)
3388 # A page like `foo.1c' goes into man1dir.
3389 if (/\.([0-9a-z])([a-z]*)$/)
3395 $varname = '$(' . $varname . ')';
3396 $vlist{$varname} = 1;
3397 &push_dist_common ($varname)
3402 return unless %sections;
3404 # Now for each section, generate an install and uninstall rule.
3405 # Sort sections so output is deterministic.
3406 foreach my $section (sort keys %sections)
3408 $output_rules .= &file_contents ('mans',
3409 new Automake::Location,
3410 SECTION => $section);
3413 my @mans = sort keys %vlist;
3414 $output_vars .= file_contents ('mans-vars',
3415 new Automake::Location,
3418 push (@all, '$(MANS)')
3419 unless option 'no-installman';
3422 # Handle DATA variables.
3425 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3426 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3427 'sysconf', 'sharedstate', 'localstate',
3428 'pkgdata', 'lisp', 'noinst', 'check');
3436 if (var ('SUBDIRS'))
3438 $output_rules .= ("tags-recursive:\n"
3439 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3440 # Never fail here if a subdir fails; it
3442 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3443 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3445 push (@tag_deps, 'tags-recursive');
3446 &depend ('.PHONY', 'tags-recursive');
3448 $output_rules .= ("ctags-recursive:\n"
3449 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3450 # Never fail here if a subdir fails; it
3452 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3453 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3455 push (@ctag_deps, 'ctags-recursive');
3456 &depend ('.PHONY', 'ctags-recursive');
3459 if (&saw_sources_p (1)
3460 || var ('ETAGS_ARGS')
3464 foreach my $spec (@config_headers)
3466 my ($out, @ins) = split_config_file_spec ($spec);
3467 foreach my $in (@ins)
3469 # If the config header source is in this directory,
3471 push @config, basename ($in)
3472 if $relative_dir eq dirname ($in);
3475 $output_rules .= &file_contents ('tags',
3476 new Automake::Location,
3477 CONFIG => "@config",
3478 TAGSDIRS => "@tag_deps",
3479 CTAGSDIRS => "@ctag_deps");
3481 set_seen 'TAGS_DEPENDENCIES';
3483 elsif (reject_var ('TAGS_DEPENDENCIES',
3484 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3485 . "without\nsources or `ETAGS_ARGS'"))
3490 # Every Makefile must define some sort of TAGS rule.
3491 # Otherwise, it would be possible for a top-level "make TAGS"
3492 # to fail because some subdirectory failed.
3493 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3495 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3499 # Handle multilib support.
3502 if ($seen_multilib && $relative_dir eq '.')
3504 $output_rules .= &file_contents ('multilib', new Automake::Location);
3505 push (@all, 'all-multi');
3510 # user_phony_rule ($NAME)
3511 # -----------------------
3512 # Return false if rule $NAME does not exist. Otherwise,
3513 # declare it as phony, complete its definition (in case it is
3514 # conditional), and return its Automake::Rule instance.
3515 sub user_phony_rule ($)
3518 my $rule = rule $name;
3521 depend ('.PHONY', $name);
3522 # Define $NAME in all condition where it is not already defined,
3523 # so that it is always OK to depend on $NAME.
3524 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3526 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3528 $output_rules .= $c->subst_string . "$name:\n";
3536 # &for_dist_common ($A, $B)
3537 # -------------------------
3538 # Subroutine for &handle_dist: sort files to dist.
3540 # We put README first because it then becomes easier to make a
3541 # Usenet-compliant shar file (in these, README must be first).
3543 # FIXME: do more ordering of files here.
3557 # Handle 'dist' target.
3560 # Substutions for distdit.am
3563 # Define DIST_SUBDIRS. This must always be done, regardless of the
3564 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3565 my $subdirs = var ('SUBDIRS');
3568 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3569 # to all possible directories, and use it. If DIST_SUBDIRS is
3570 # defined, just use it.
3572 # Note that we check DIST_SUBDIRS first on purpose, so that
3573 # we don't call has_conditional_contents for now reason.
3574 # (In the past one project used so many conditional subdirectories
3575 # that calling has_conditional_contents on SUBDIRS caused
3576 # automake to grow to 150Mb -- this should not happen with
3577 # the current implementation of has_conditional_contents,
3578 # but it's more efficient to avoid the call anyway.)
3579 if (var ('DIST_SUBDIRS'))
3582 elsif ($subdirs->has_conditional_contents)
3584 define_pretty_variable
3585 ('DIST_SUBDIRS', TRUE, INTERNAL,
3586 uniq ($subdirs->value_as_list_recursive));
3590 # We always define this because that is what `distclean'
3592 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3597 # The remaining definitions are only required when a dist target is used.
3598 return if option 'no-dist';
3600 # At least one of the archive formats must be enabled.
3601 if ($relative_dir eq '.')
3603 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3604 $archive_defined ||=
3605 grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
3606 error (option 'no-dist-gzip',
3607 "no-dist-gzip specified but no dist-* specified, "
3608 . "at least one archive format must be enabled")
3609 unless $archive_defined;
3612 # Look for common files that should be included in distribution.
3613 # If the aux dir is set, and it does not have a Makefile.am, then
3614 # we check for these files there as well.
3616 if ($relative_dir eq '.'
3617 && $config_aux_dir_set_in_configure_ac)
3619 if (! &is_make_dir ($config_aux_dir))
3624 foreach my $cfile (@common_files)
3626 if (dir_has_case_matching_file ($relative_dir, $cfile)
3627 # The file might be absent, but if it can be built it's ok.
3630 &push_dist_common ($cfile);
3633 # Don't use `elsif' here because a file might meaningfully
3634 # appear in both directories.
3635 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3637 &push_dist_common ("$config_aux_dir/$cfile")
3641 # We might copy elements from $configure_dist_common to
3642 # %dist_common if we think we need to. If the file appears in our
3643 # directory, we would have discovered it already, so we don't
3644 # check that. But if the file is in a subdir without a Makefile,
3645 # we want to distribute it here if we are doing `.'. Ugly!
3646 if ($relative_dir eq '.')
3648 foreach my $file (split (' ' , $configure_dist_common))
3650 push_dist_common ($file)
3651 unless is_make_dir (dirname ($file));
3655 # Files to distributed. Don't use ->value_as_list_recursive
3656 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3657 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3658 @dist_common = uniq (sort for_dist_common (@dist_common));
3659 variable_delete 'DIST_COMMON';
3660 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3662 # Now that we've processed DIST_COMMON, disallow further attempts
3664 $handle_dist_run = 1;
3666 # Scan EXTRA_DIST to see if we need to distribute anything from a
3667 # subdir. If so, add it to the list. I didn't want to do this
3668 # originally, but there were so many requests that I finally
3670 my $extra_dist = var ('EXTRA_DIST');
3672 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3673 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3675 # If the target `dist-hook' exists, make sure it is run. This
3676 # allows users to do random weird things to the distribution
3677 # before it is packaged up.
3678 push (@dist_targets, 'dist-hook')
3679 if user_phony_rule 'dist-hook';
3680 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3682 my $flm = option ('filename-length-max');
3683 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3685 $output_rules .= &file_contents ('distdir',
3686 new Automake::Location,
3688 FILENAME_FILTER => $filename_filter);
3692 # check_directory ($NAME, $WHERE)
3693 # -------------------------------
3694 # Ensure $NAME is a directory, and that it uses sane name.
3695 # Use $WHERE as a location in the diagnostic, if any.
3696 sub check_directory ($$)
3698 my ($dir, $where) = @_;
3700 error $where, "required directory $relative_dir/$dir does not exist"
3701 unless -d "$relative_dir/$dir";
3703 # If an `obj/' directory exists, BSD make will enter it before
3704 # reading `Makefile'. Hence the `Makefile' in the current directory
3710 # % cat obj/Makefile
3716 # % pmake # BSD make
3719 msg ('portability', $where,
3720 "naming a subdirectory `obj' causes troubles with BSD make")
3723 # `aux' is probably the most important of the following forbidden name,
3724 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3725 msg ('portability', $where,
3726 "name `$dir' is reserved on W32 and DOS platforms")
3727 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3730 # check_directories_in_var ($VARIABLE)
3731 # ------------------------------------
3732 # Recursively check all items in variables $VARIABLE as directories
3733 sub check_directories_in_var ($)
3736 $var->traverse_recursively
3739 my ($var, $val, $cond, $full_cond) = @_;
3740 check_directory ($val, $var->rdef ($cond)->location);
3744 skip_ac_subst => 1);
3747 # &handle_subdirs ()
3748 # ------------------
3749 # Handle subdirectories.
3750 sub handle_subdirs ()
3752 my $subdirs = var ('SUBDIRS');
3756 check_directories_in_var $subdirs;
3758 my $dsubdirs = var ('DIST_SUBDIRS');
3759 check_directories_in_var $dsubdirs
3762 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3763 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3767 # ($REGEN, @DEPENDENCIES)
3770 # If aclocal.m4 creation is automated, return the list of its dependencies.
3771 sub scan_aclocal_m4 ()
3773 my $regen_aclocal = 0;
3775 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3776 set_seen 'CONFIGURE_DEPENDENCIES';
3778 if (-f 'aclocal.m4')
3780 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3782 my $aclocal = new Automake::XFile "< aclocal.m4";
3783 my $line = $aclocal->getline;
3784 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3789 if (set_seen ('ACLOCAL_M4_SOURCES'))
3791 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3792 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3793 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3794 . "It should be safe to simply remove it.");
3797 # Note that it might be possible that aclocal.m4 doesn't exist but
3798 # should be auto-generated. This case probably isn't very
3801 return ($regen_aclocal, @ac_deps);
3805 # Helper function for substitute_ac_subst_variables.
3806 sub substitute_ac_subst_variables_worker($)
3809 return "\@$token\@" if var $token;
3810 return "\${$token\}";
3813 # substitute_ac_subst_variables ($TEXT)
3814 # -------------------------------------
3815 # Replace any occurence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3817 sub substitute_ac_subst_variables ($)
3820 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3825 # &prepend_srcdir (@INPUTS)
3826 # -------------------------
3827 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3828 # if an input file has a directory part the same as the current
3829 # directory, then the directory part is simply replaced by $(srcdir).
3830 # But if the directory part is different, then $(top_srcdir) is
3832 sub prepend_srcdir (@)
3837 foreach my $single (@inputs)
3839 if (dirname ($single) eq $relative_dir)
3841 push (@newinputs, '$(srcdir)/' . basename ($single));
3845 push (@newinputs, '$(top_srcdir)/' . $single);
3852 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3853 # ---------------------------------------------------
3854 # Compute a list of dependencies appropriate for the rebuild
3856 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3857 # Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
3858 sub rewrite_inputs_into_dependencies ($@)
3860 my ($file, @inputs) = @_;
3865 # We cannot create dependencies on shell variables.
3866 next if (substitute_ac_subst_variables $i) =~ /\$/;
3868 if (exists $ac_config_files_location{$i})
3870 my $di = dirname $i;
3871 if ($di eq $relative_dir)
3875 # In the top-level Makefile we do not use $(top_builddir), because
3876 # we are already there, and since the targets are built without
3877 # a $(top_builddir), it helps BSD Make to match them with
3879 elsif ($relative_dir ne '.')
3881 $i = '$(top_builddir)/' . $i;
3886 msg ('error', $ac_config_files_location{$file},
3887 "required file `$i' not found")
3888 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3889 ($i) = prepend_srcdir ($i);
3890 push_dist_common ($i);
3899 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3900 # ------------------------------------------------------------------
3901 # Handle remaking and configure stuff.
3902 # We need the name of the input file, to do proper remaking rules.
3903 sub handle_configure ($$$@)
3905 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
3907 prog_error 'empty @inputs'
3910 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
3912 my $rel_makefile = basename $makefile;
3914 my $colon_infile = ':' . join (':', @inputs);
3915 $colon_infile = '' if $colon_infile eq ":$makefile.in";
3916 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
3917 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
3918 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
3919 @configure_deps, @aclocal_m4_deps,
3920 '$(top_srcdir)/' . $configure_ac);
3921 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
3922 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
3923 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
3926 $output_rules .= file_contents
3928 new Automake::Location,
3929 MAKEFILE => $rel_makefile,
3930 'MAKEFILE-DEPS' => "@rewritten",
3931 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
3932 'MAKEFILE-IN' => $rel_makefile_in,
3933 'MAKEFILE-IN-DEPS' => "@include_stack",
3934 'MAKEFILE-AM' => $rel_makefile_am,
3935 STRICTNESS => global_option 'cygnus'
3936 ? 'cygnus' : $strictness_name,
3937 'USE-DEPS' => global_option 'no-dependencies'
3938 ? ' --ignore-deps' : '',
3939 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
3940 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
3942 if ($relative_dir eq '.')
3944 &push_dist_common ('acconfig.h')
3948 # If we have a configure header, require it.
3950 my @distclean_config;
3951 foreach my $spec (@config_headers)
3954 # $CONFIG_H_PATH: config.h from top level.
3955 my ($config_h_path, @ins) = split_config_file_spec ($spec);
3956 my $config_h_dir = dirname ($config_h_path);
3958 # If the header is in the current directory we want to build
3959 # the header here. Otherwise, if we're at the topmost
3960 # directory and the header's directory doesn't have a
3961 # Makefile, then we also want to build the header.
3962 if ($relative_dir eq $config_h_dir
3963 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
3965 my ($cn_sans_dir, $stamp_dir);
3966 if ($relative_dir eq $config_h_dir)
3968 $cn_sans_dir = basename ($config_h_path);
3973 $cn_sans_dir = $config_h_path;
3974 if ($config_h_dir eq '.')
3980 $stamp_dir = $config_h_dir . '/';
3984 # This will also distribute all inputs.
3985 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
3987 # Cannot define rebuild rules for filenames with shell variables.
3988 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
3990 # Header defined in this directory.
3992 if (-f $config_h_path . '.top')
3994 push (@files, "$cn_sans_dir.top");
3996 if (-f $config_h_path . '.bot')
3998 push (@files, "$cn_sans_dir.bot");
4001 push_dist_common (@files);
4003 # For now, acconfig.h can only appear in the top srcdir.
4004 if (-f 'acconfig.h')
4006 push (@files, '$(top_srcdir)/acconfig.h');
4009 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4011 file_contents ('remake-hdr',
4012 new Automake::Location,
4014 CONFIG_H => $cn_sans_dir,
4015 CONFIG_HIN => $ins[0],
4016 CONFIG_H_DEPS => "@ins",
4017 CONFIG_H_PATH => $config_h_path,
4020 push @distclean_config, $cn_sans_dir, $stamp;
4024 $output_rules .= file_contents ('clean-hdr',
4025 new Automake::Location,
4026 FILES => "@distclean_config")
4027 if @distclean_config;
4029 # Distribute and define mkinstalldirs only if it is already present
4030 # in the package, for backward compatibility (some people may still
4031 # use $(mkinstalldirs)).
4032 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4035 # Use require_file so that any existing script gets updated
4036 # by --force-missing.
4037 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4038 define_variable ('mkinstalldirs',
4039 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4043 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4044 # at least one argument, and $(mkinstalldirs) used to work
4045 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4046 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4049 reject_var ('CONFIG_HEADER',
4050 "`CONFIG_HEADER' is an anachronism; now determined "
4051 . "automatically\nfrom `$configure_ac'");
4054 foreach my $spec (@config_headers)
4056 my ($out, @ins) = split_config_file_spec ($spec);
4057 # Generate CONFIG_HEADER define.
4058 if ($relative_dir eq dirname ($out))
4060 push @config_h, basename ($out);
4064 push @config_h, "\$(top_builddir)/$out";
4067 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4070 # Now look for other files in this directory which must be remade
4071 # by config.status, and generate rules for them.
4072 my @actual_other_files = ();
4073 foreach my $lfile (@other_input_files)
4077 if ($lfile =~ /^([^:]*):(.*)$/)
4079 # This is the ":" syntax of AC_OUTPUT.
4081 @inputs = split (':', $2);
4087 @inputs = $file . '.in';
4090 # Automake files should not be stored in here, but in %MAKE_LIST.
4091 prog_error ("$lfile in \@other_input_files\n"
4092 . "\@other_input_files = (@other_input_files)")
4093 if -f $file . '.am';
4095 my $local = basename ($file);
4097 # We skip files that aren't in this directory. However, if
4098 # the file's directory does not have a Makefile, and we are
4099 # currently doing `.', then we create a rule to rebuild the
4100 # file in the subdir.
4101 my $fd = dirname ($file);
4102 if ($fd ne $relative_dir)
4104 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4114 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4116 # Cannot output rules for shell variables.
4117 next if (substitute_ac_subst_variables $local) =~ /\$/;
4119 $output_rules .= ($local . ': '
4120 . '$(top_builddir)/config.status '
4121 . "@rewritten_inputs\n"
4123 . 'cd $(top_builddir) && '
4124 . '$(SHELL) ./config.status '
4125 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4128 push (@actual_other_files, $local);
4131 # For links we should clean destinations and distribute sources.
4132 foreach my $spec (@config_links)
4134 my ($link, $file) = split /:/, $spec;
4135 # Some people do AC_CONFIG_LINKS($computed). We only handle
4136 # the DEST:SRC form.
4138 my $where = $ac_config_files_location{$link};
4140 # Skip destinations that contain shell variables.
4141 if ((substitute_ac_subst_variables $link) !~ /\$/)
4143 # We skip links that aren't in this directory. However, if
4144 # the link's directory does not have a Makefile, and we are
4145 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4146 # in `.'s Makefile.in.
4147 my $local = basename ($link);
4148 my $fd = dirname ($link);
4149 if ($fd ne $relative_dir)
4151 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4160 push @actual_other_files, $local if $local;
4163 # Do not process sources that contain shell variables.
4164 if ((substitute_ac_subst_variables $file) !~ /\$/)
4166 my $fd = dirname ($file);
4168 # We distribute files that are in this directory.
4169 # At the top-level (`.') we also distribute files whose
4170 # directory does not have a Makefile.
4171 if (($fd eq $relative_dir)
4172 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4174 # The following will distribute $file as a side-effect when
4175 # it is appropriate (i.e., when $file is not already an output).
4176 # We do not need the result, just the side-effect.
4177 rewrite_inputs_into_dependencies ($link, $file);
4182 # These files get removed by "make distclean".
4183 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4184 @actual_other_files);
4190 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4191 'oldinclude', 'pkginclude',
4195 next unless $_->[1] =~ /\..*$/;
4196 &saw_extension ($&);
4202 return if ! $seen_gettext || $relative_dir ne '.';
4204 my $subdirs = var 'SUBDIRS';
4208 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4212 # Perform some sanity checks to help users get the right setup.
4213 # We disable these tests when po/ doesn't exist in order not to disallow
4214 # unusual gettext setups.
4219 # | 1) If a package doesn't have a directory po/ at top level, it
4220 # | will likely have multiple po/ directories in subpackages.
4222 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4223 # | is used without 'external'. It is also useful to warn for the
4224 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4225 # | warnings apply only to the usual layout of packages, therefore
4226 # | they should both be disabled if no po/ directory is found at
4231 my @subdirs = $subdirs->value_as_list_recursive;
4233 msg_var ('syntax', $subdirs,
4234 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4235 if ! grep ($_ eq 'po', @subdirs);
4237 # intl/ is not required when AM_GNU_GETTEXT is called with
4238 # the `external' option.
4239 msg_var ('syntax', $subdirs,
4240 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4241 if (! $seen_gettext_external
4242 && ! grep ($_ eq 'intl', @subdirs));
4244 # intl/ should not be used with AM_GNU_GETTEXT([external])
4245 msg_var ('syntax', $subdirs,
4246 "`intl' should not be in SUBDIRS when "
4247 . "AM_GNU_GETTEXT([external]) is used")
4248 if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
4251 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4254 # Handle footer elements.
4257 reject_rule ('.SUFFIXES',
4258 "use variable `SUFFIXES', not target `.SUFFIXES'");
4260 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4261 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4262 # anything else, by sticking it right after the default: target.
4263 $output_header .= ".SUFFIXES:\n";
4264 my $suffixes = var 'SUFFIXES';
4265 my @suffixes = Automake::Rule::suffixes;
4266 if (@suffixes || $suffixes)
4268 # Make sure SUFFIXES has unique elements. Sort them to ensure
4269 # the output remains consistent. However, $(SUFFIXES) is
4270 # always at the start of the list, unsorted. This is done
4271 # because make will choose rules depending on the ordering of
4272 # suffixes, and this lets the user have some control. Push
4273 # actual suffixes, and not $(SUFFIXES). Some versions of make
4274 # do not like variable substitutions on the .SUFFIXES line.
4275 my @user_suffixes = ($suffixes
4276 ? $suffixes->value_as_list_recursive : ());
4278 my %suffixes = map { $_ => 1 } @suffixes;
4279 delete @suffixes{@user_suffixes};
4281 $output_header .= (".SUFFIXES: "
4282 . join (' ', @user_suffixes, sort keys %suffixes)
4286 $output_trailer .= file_contents ('footer', new Automake::Location);
4290 # Generate `make install' rules.
4291 sub handle_install ()
4293 $output_rules .= &file_contents
4295 new Automake::Location,
4296 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4297 ? (" \$(BUILT_SOURCES)\n"
4298 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4300 'installdirs-local' => (user_phony_rule 'installdirs-local'
4301 ? ' installdirs-local' : ''),
4302 am__installdirs => variable_value ('am__installdirs') || '');
4306 # Deal with all and all-am.
4309 my ($makefile) = @_;
4313 # Put this at the beginning for the sake of non-GNU makes. This
4314 # is still wrong if these makes can run parallel jobs. But it is
4316 unshift (@all, basename ($makefile));
4318 foreach my $spec (@config_headers)
4320 my ($out, @ins) = split_config_file_spec ($spec);
4321 push (@all, basename ($out))
4322 if dirname ($out) eq $relative_dir;
4325 # Install `all' hooks.
4326 push (@all, "all-local")
4327 if user_phony_rule "all-local";
4329 &pretty_print_rule ("all-am:", "\t\t", @all);
4330 &depend ('.PHONY', 'all-am', 'all');
4335 my @local_headers = ();
4336 push @local_headers, '$(BUILT_SOURCES)'
4337 if var ('BUILT_SOURCES');
4338 foreach my $spec (@config_headers)
4340 my ($out, @ins) = split_config_file_spec ($spec);
4341 push @local_headers, basename ($out)
4342 if dirname ($out) eq $relative_dir;
4347 # We need to make sure config.h is built before we recurse.
4348 # We also want to make sure that built sources are built
4349 # before any ordinary `all' targets are run. We can't do this
4350 # by changing the order of dependencies to the "all" because
4351 # that breaks when using parallel makes. Instead we handle
4352 # things explicitly.
4353 $output_all .= ("all: @local_headers"
4355 . '$(MAKE) $(AM_MAKEFLAGS) '
4356 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4361 $output_all .= "all: " . (var ('SUBDIRS')
4362 ? 'all-recursive' : 'all-am') . "\n\n";
4367 # &do_check_merge_target ()
4368 # -------------------------
4369 # Handle check merge target specially.
4370 sub do_check_merge_target ()
4372 # Include user-defined local form of target.
4373 push @check_tests, 'check-local'
4374 if user_phony_rule 'check-local';
4376 # In --cygnus mode, check doesn't depend on all.
4377 if (option 'cygnus')
4379 # Just run the local check rules.
4380 pretty_print_rule ('check-am:', "\t\t", @check);
4384 # The check target must depend on the local equivalent of
4385 # `all', to ensure all the primary targets are built. Then it
4386 # must build the local check rules.
4387 $output_rules .= "check-am: all-am\n";
4388 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4392 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4396 depend '.PHONY', 'check', 'check-am';
4397 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4398 $output_rules .= ("check: "
4399 . (var ('BUILT_SOURCES')
4400 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4402 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4406 # handle_clean ($MAKEFILE)
4407 # ------------------------
4408 # Handle all 'clean' targets.
4409 sub handle_clean ($)
4411 my ($makefile) = @_;
4413 # Clean the files listed in user variables if they exist.
4414 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4415 if var ('MOSTLYCLEANFILES');
4416 $clean_files{'$(CLEANFILES)'} = CLEAN
4417 if var ('CLEANFILES');
4418 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4419 if var ('DISTCLEANFILES');
4420 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4421 if var ('MAINTAINERCLEANFILES');
4423 # Built sources are automatically removed by maintainer-clean.
4424 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4425 if var ('BUILT_SOURCES');
4427 # Compute a list of "rm"s to run for each target.
4428 my %rms = (MOSTLY_CLEAN, [],
4431 MAINTAINER_CLEAN, []);
4433 foreach my $file (keys %clean_files)
4435 my $when = $clean_files{$file};
4436 prog_error 'invalid entry in %clean_files'
4437 unless exists $rms{$when};
4439 my $rm = "rm -f $file";
4440 # If file is a variable, make sure when don't call `rm -f' without args.
4441 $rm ="test -z \"$file\" || $rm"
4442 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4444 push @{$rms{$when}}, "\t-$rm\n";
4447 $output_rules .= &file_contents
4449 new Automake::Location,
4450 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4451 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4452 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4453 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4454 MAKEFILE => basename $makefile,
4459 # &target_cmp ($A, $B)
4460 # --------------------
4461 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4462 # other `.TARGETS' be last.
4465 return 0 if $a eq $b;
4467 my $a1 = substr ($a, 0, 1);
4468 my $b1 = substr ($b, 0, 1);
4471 return -1 if $b1 eq '.';
4472 return 1 if $a1 eq '.';
4478 # &handle_factored_dependencies ()
4479 # --------------------------------
4480 # Handle everything related to gathered targets.
4481 sub handle_factored_dependencies
4484 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4485 'uninstall-exec-local', 'uninstall-exec-hook',
4486 'uninstall-dvi-local',
4487 'uninstall-html-local',
4488 'uninstall-info-local',
4489 'uninstall-pdf-local',
4490 'uninstall-ps-local')
4494 reject_rule ($utarg, "use `$x', not `$utarg'");
4497 reject_rule ('install-local',
4498 "use `install-data-local' or `install-exec-local', "
4499 . "not `install-local'");
4501 reject_rule ('install-hook',
4502 "use `install-data-hook' or `install-exec-hook', "
4503 . "not `install-hook'");
4505 # Install the -local hooks.
4506 foreach (keys %dependencies)
4508 # Hooks are installed on the -am targets.
4510 depend ("$_-am", "$_-local")
4511 if user_phony_rule "$_-local";
4514 # Install the -hook hooks.
4515 # FIXME: Why not be as liberal as we are with -local hooks?
4516 foreach ('install-exec', 'install-data', 'uninstall')
4518 if (user_phony_rule "$_-hook")
4520 $actions{"$_-am"} .=
4521 ("\t\@\$(NORMAL_INSTALL)\n"
4522 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4523 depend ('.MAKE', "$_-am");
4527 # All the required targets are phony.
4528 depend ('.PHONY', keys %required_targets);
4530 # Actually output gathered targets.
4531 foreach (sort target_cmp keys %dependencies)
4533 # If there is nothing about this guy, skip it.
4535 unless (@{$dependencies{$_}}
4537 || $required_targets{$_});
4539 # Define gathered targets in undefined conditions.
4540 # FIXME: Right now we must handle .PHONY as an exception,
4541 # because people write things like
4542 # .PHONY: myphonytarget
4543 # to append dependencies. This would not work if Automake
4544 # refrained from defining its own .PHONY target as it does
4545 # with other overridden targets.
4546 # Likewise for `.MAKE'.
4547 my @undefined_conds = (TRUE,);
4548 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4551 Automake::Rule::define ($_, 'internal',
4552 RULE_AUTOMAKE, TRUE, INTERNAL);
4554 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4555 foreach my $cond (@undefined_conds)
4557 my $condstr = $cond->subst_string;
4558 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4559 $output_rules .= $actions{$_} if defined $actions{$_};
4560 $output_rules .= "\n";
4566 # &handle_tests_dejagnu ()
4567 # ------------------------
4568 sub handle_tests_dejagnu
4570 push (@check_tests, 'check-DEJAGNU');
4571 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4575 # Handle TESTS variable and other checks.
4578 if (option 'dejagnu')
4580 &handle_tests_dejagnu;
4584 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4586 reject_var ($c, "`$c' defined but `dejagnu' not in "
4587 . "`AUTOMAKE_OPTIONS'");
4593 push (@check_tests, 'check-TESTS');
4594 $output_rules .= &file_contents ('check', new Automake::Location);
4596 # Tests that are known programs should have $(EXEEXT) appended.
4597 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4601 # Handle Emacs Lisp.
4602 sub handle_emacs_lisp
4604 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4607 return if ! @elfiles;
4609 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4610 map { $_->[1] } @elfiles);
4611 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4612 '$(am__ELFILES:.el=.elc)');
4613 # This one can be overridden by users.
4614 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4616 push @all, '$(ELCFILES)';
4618 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4619 'EMACS', 'lispdir');
4620 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4621 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4627 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4629 return if ! @pyfiles;
4631 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4632 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4633 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4639 my @sourcelist = &am_install_var ('-candist',
4641 'java', 'noinst', 'check');
4642 return if ! @sourcelist;
4644 my @prefix = am_primary_prefixes ('JAVA', 1,
4645 'java', 'noinst', 'check');
4648 foreach my $curs (@prefix)
4651 if $curs eq 'EXTRA';
4653 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4659 push (@all, 'class' . $dir . '.stamp');
4663 # Handle some of the minor options.
4664 sub handle_minor_options
4666 if (option 'readme-alpha')
4668 if ($relative_dir eq '.')
4670 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4672 msg ('error-gnits', $package_version_location,
4673 "version `$package_version' doesn't follow " .
4676 if (defined $1 && -f 'README-alpha')
4678 # This means we have an alpha release. See
4679 # GNITS_VERSION_PATTERN for details.
4680 push_dist_common ('README-alpha');
4686 ################################################################
4688 # ($OUTPUT, @INPUTS)
4689 # &split_config_file_spec ($SPEC)
4690 # -------------------------------
4691 # Decode the Autoconf syntax for config files (files, headers, links
4693 sub split_config_file_spec ($)
4696 my ($output, @inputs) = split (/:/, $spec);
4698 push @inputs, "$output.in"
4701 return ($output, @inputs);
4705 # locate_am (@POSSIBLE_SOURCES)
4706 # -----------------------------
4707 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4708 # This functions returns the first *.in file for which a *.am exists.
4709 # It returns undef otherwise.
4714 foreach my $file (@rest)
4716 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4727 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4728 # ---------------------------------------------------
4729 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4731 sub scan_autoconf_config_files ($$)
4733 my ($where, $config_files) = @_;
4735 # Look at potential Makefile.am's.
4736 foreach (split ' ', $config_files)
4738 # Must skip empty string for Perl 4.
4739 next if $_ eq "\\" || $_ eq '';
4741 # Handle $local:$input syntax.
4742 my ($local, @rest) = split (/:/);
4743 @rest = ("$local.in",) unless @rest;
4744 my $input = locate_am @rest;
4747 # We have a file that automake should generate.
4748 $make_list{$input} = join (':', ($local, @rest));
4752 # We have a file that automake should cause to be
4753 # rebuilt, but shouldn't generate itself.
4754 push (@other_input_files, $_);
4756 $ac_config_files_location{$local} = $where;
4761 # &scan_autoconf_traces ($FILENAME)
4762 # ---------------------------------
4763 sub scan_autoconf_traces ($)
4765 my ($filename) = @_;
4767 # Macros to trace, with their minimal number of arguments.
4769 # IMPORTANT: If you add a macro here, you should also add this macro
4770 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
4772 AC_CANONICAL_BUILD => 0,
4773 AC_CANONICAL_HOST => 0,
4774 AC_CANONICAL_TARGET => 0,
4775 AC_CONFIG_AUX_DIR => 1,
4776 AC_CONFIG_FILES => 1,
4777 AC_CONFIG_HEADERS => 1,
4778 AC_CONFIG_LIBOBJ_DIR => 1,
4779 AC_CONFIG_LINKS => 1,
4782 AC_REQUIRE_AUX_FILE => 1,
4783 AC_SUBST_TRACE => 1,
4784 AM_AUTOMAKE_VERSION => 1,
4785 AM_CONDITIONAL => 2,
4786 AM_ENABLE_MULTILIB => 0,
4787 AM_GNU_GETTEXT => 0,
4788 AM_INIT_AUTOMAKE => 0,
4789 AM_MAINTAINER_MODE => 0,
4790 AM_PROG_CC_C_O => 0,
4791 _AM_SUBST_NOTMAKE => 1,
4792 LT_SUPPORTED_TAG => 1,
4793 _LT_AC_TAGCONFIG => 0,
4799 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4801 # Use a separator unlikely to be used, not `:', the default, which
4802 # has a precise meaning for AC_CONFIG_FILES and so on.
4803 $traces .= join (' ',
4804 map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
4807 my $tracefh = new Automake::XFile ("$traces $filename |");
4808 verb "reading $traces";
4810 while ($_ = $tracefh->getline)
4813 my ($here, @args) = split (/::/);
4814 my $where = new Automake::Location $here;
4815 my $macro = $args[0];
4817 prog_error ("unrequested trace `$macro'")
4818 unless exists $traced{$macro};
4820 # Skip and diagnose malformed calls.
4821 if ($#args < $traced{$macro})
4823 msg ('syntax', $where, "not enough arguments for $macro");
4827 # Alphabetical ordering please.
4828 if ($macro eq 'AC_CANONICAL_BUILD')
4830 if ($seen_canonical <= AC_CANONICAL_BUILD)
4832 $seen_canonical = AC_CANONICAL_BUILD;
4833 $canonical_location = $where;
4836 elsif ($macro eq 'AC_CANONICAL_HOST')
4838 if ($seen_canonical <= AC_CANONICAL_HOST)
4840 $seen_canonical = AC_CANONICAL_HOST;
4841 $canonical_location = $where;
4844 elsif ($macro eq 'AC_CANONICAL_TARGET')
4846 $seen_canonical = AC_CANONICAL_TARGET;
4847 $canonical_location = $where;
4849 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4851 if ($seen_init_automake)
4853 error ($where, "AC_CONFIG_AUX_DIR must be called before "
4854 . "AM_INIT_AUTOMAKE...", partial => 1);
4855 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
4857 $config_aux_dir = $args[1];
4858 $config_aux_dir_set_in_configure_ac = 1;
4859 $relative_dir = '.';
4860 check_directory ($config_aux_dir, $where);
4862 elsif ($macro eq 'AC_CONFIG_FILES')
4864 # Look at potential Makefile.am's.
4865 scan_autoconf_config_files ($where, $args[1]);
4867 elsif ($macro eq 'AC_CONFIG_HEADERS')
4869 foreach my $spec (split (' ', $args[1]))
4871 my ($dest, @src) = split (':', $spec);
4872 $ac_config_files_location{$dest} = $where;
4873 push @config_headers, $spec;
4876 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
4878 $config_libobj_dir = $args[1];
4879 $relative_dir = '.';
4880 check_directory ($config_libobj_dir, $where);
4882 elsif ($macro eq 'AC_CONFIG_LINKS')
4884 foreach my $spec (split (' ', $args[1]))
4886 my ($dest, $src) = split (':', $spec);
4887 $ac_config_files_location{$dest} = $where;
4888 push @config_links, $spec;
4891 elsif ($macro eq 'AC_INIT')
4893 if (defined $args[2])
4895 $package_version = $args[2];
4896 $package_version_location = $where;
4899 elsif ($macro eq 'AC_LIBSOURCE')
4901 $libsources{$args[1]} = $here;
4903 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
4905 # Only remember the first time a file is required.
4906 $required_aux_file{$args[1]} = $where
4907 unless exists $required_aux_file{$args[1]};
4909 elsif ($macro eq 'AC_SUBST_TRACE')
4911 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
4912 # AC_SUBST(5), then too bad.
4913 $configure_vars{$args[1]} = $where
4914 if $args[1] =~ /^\w+$/;
4916 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
4919 "version mismatch. This is Automake $VERSION,\n" .
4920 "but the definition used by this AM_INIT_AUTOMAKE\n" .
4921 "comes from Automake $args[1]. You should recreate\n" .
4922 "aclocal.m4 with aclocal and run automake again.\n",
4923 # $? = 63 is used to indicate version mismatch to missing.
4925 if $VERSION ne $args[1];
4927 $seen_automake_version = 1;
4929 elsif ($macro eq 'AM_CONDITIONAL')
4931 $configure_cond{$args[1]} = $where;
4933 elsif ($macro eq 'AM_ENABLE_MULTILIB')
4935 $seen_multilib = $where;
4937 elsif ($macro eq 'AM_GNU_GETTEXT')
4939 $seen_gettext = $where;
4940 $ac_gettext_location = $where;
4941 $seen_gettext_external = grep ($_ eq 'external', @args);
4943 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4945 $seen_init_automake = $where;
4946 if (defined $args[2])
4948 $package_version = $args[2];
4949 $package_version_location = $where;
4951 elsif (defined $args[1])
4954 if (process_global_option_list ($where,
4955 split (' ', $args[1])));
4958 elsif ($macro eq 'AM_MAINTAINER_MODE')
4960 $seen_maint_mode = $where;
4962 elsif ($macro eq 'AM_PROG_CC_C_O')
4964 $seen_cc_c_o = $where;
4966 elsif ($macro eq '_AM_SUBST_NOTMAKE')
4968 $ignored_configure_vars{$args[1]} = $where;
4970 elsif ($macro eq 'm4_include'
4971 || $macro eq 'm4_sinclude'
4972 || $macro eq 'sinclude')
4974 # Skip missing `sinclude'd files.
4975 next if $macro ne 'm4_include' && ! -f $args[1];
4977 # Some modified versions of Autoconf don't use
4978 # forzen files. Consequently it's possible that we see all
4979 # m4_include's performed during Autoconf's startup.
4980 # Obviously we don't want to distribute Autoconf's files
4981 # so we skip absolute filenames here.
4982 push @configure_deps, '$(top_srcdir)/' . $args[1]
4983 unless $here =~ m,^(?:\w:)?[\\/],;
4984 # Keep track of the greatest timestamp.
4987 my $mtime = mtime $args[1];
4988 $configure_deps_greatest_timestamp = $mtime
4989 if $mtime > $configure_deps_greatest_timestamp;
4992 elsif ($macro eq 'LT_SUPPORTED_TAG')
4994 $libtool_tags{$args[1]} = 1;
4995 $libtool_new_api = 1;
4997 elsif ($macro eq '_LT_AC_TAGCONFIG')
4999 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5000 # We use it to detect whether tags are supported. Our
5001 # prefered interface is LT_SUPPORTED_TAG, but it was
5002 # introduced in Libtool 1.6.
5003 if (0 == keys %libtool_tags)
5005 # Hardcode the tags supported by Libtool 1.5.
5006 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5015 # &scan_autoconf_files ()
5016 # -----------------------
5017 # Check whether we use `configure.ac' or `configure.in'.
5018 # Scan it (and possibly `aclocal.m4') for interesting things.
5019 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5020 sub scan_autoconf_files ()
5022 # Reinitialize libsources here. This isn't really necessary,
5023 # since we currently assume there is only one configure.ac. But
5024 # that won't always be the case.
5027 # Keep track of the youngest configure dependency.
5028 $configure_deps_greatest_timestamp = mtime $configure_ac;
5029 if (-e 'aclocal.m4')
5031 my $mtime = mtime 'aclocal.m4';
5032 $configure_deps_greatest_timestamp = $mtime
5033 if $mtime > $configure_deps_greatest_timestamp;
5036 scan_autoconf_traces ($configure_ac);
5038 @configure_input_files = sort keys %make_list;
5039 # Set input and output files if not specified by user.
5042 @input_files = @configure_input_files;
5043 %output_files = %make_list;
5047 if (! $seen_init_automake)
5049 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5050 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5051 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5052 . "and that aclocal.m4 was recently regenerated "
5053 . "(using aclocal).");
5057 if (! $seen_automake_version)
5059 if (-f 'aclocal.m4')
5061 error ($seen_init_automake,
5062 "your implementation of AM_INIT_AUTOMAKE comes from " .
5063 "an\nold Automake version. You should recreate " .
5064 "aclocal.m4\nwith aclocal and run automake again.\n",
5065 # $? = 63 is used to indicate version mismatch to missing.
5070 error ($seen_init_automake,
5071 "no proper implementation of AM_INIT_AUTOMAKE was " .
5072 "found,\nprobably because aclocal.m4 is missing...\n" .
5073 "You should run aclocal to create this file, then\n" .
5074 "run automake again.\n");
5081 # Reorder @input_files so that the Makefile that distributes aux
5082 # files is processed last. This is important because each directory
5083 # can require auxiliary scripts and we should wait until they have
5084 # been installed before distributing them.
5086 # The Makefile.in that distribute the aux files is the one in
5087 # $config_aux_dir or the top-level Makefile.
5088 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5089 my @new_input_files = ();
5090 while (@input_files)
5092 my $in = pop @input_files;
5093 my @ins = split (/:/, $output_files{$in});
5094 if (dirname ($ins[0]) eq $auxdirdist)
5096 push @new_input_files, $in;
5097 $automake_will_process_aux_dir = 1;
5101 unshift @new_input_files, $in;
5104 @input_files = @new_input_files;
5106 # If neither the auxdir/Makefile nor the ./Makefile are generated
5107 # by Automake, we won't distribute the aux files anyway. Assume
5108 # the user know what (s)he does, and pretend we will distribute
5109 # them to disable the error in require_file_internal.
5110 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5112 # Look for some files we need. Always check for these. This
5113 # check must be done for every run, even those where we are only
5114 # looking at a subdir Makefile. We must set relative_dir for
5115 # maybe_push_required_file to work.
5116 $relative_dir = '.';
5117 foreach my $file (keys %required_aux_file)
5119 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5121 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5122 if -f $config_aux_dir . '/install.sh';
5124 # Preserve dist_common for later.
5125 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5129 ################################################################
5131 # Set up for Cygnus mode.
5134 my $cygnus = option 'cygnus';
5135 return unless $cygnus;
5137 set_strictness ('foreign');
5138 set_option ('no-installinfo', $cygnus);
5139 set_option ('no-dependencies', $cygnus);
5140 set_option ('no-dist', $cygnus);
5142 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5143 if !$seen_maint_mode;
5146 # Do any extra checking for GNU standards.
5147 sub check_gnu_standards
5149 if ($relative_dir eq '.')
5151 # In top level (or only) directory.
5152 require_file ("$am_file.am", GNU,
5153 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5155 # Accept one of these three licenses; default to COPYING.
5156 # Make sure we do not overwrite an existing license.
5158 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5166 require_file ("$am_file.am", GNU, 'COPYING')
5170 for my $opt ('no-installman', 'no-installinfo')
5172 msg ('error-gnu', option $opt,
5173 "option `$opt' disallowed by GNU standards")
5178 # Do any extra checking for GNITS standards.
5179 sub check_gnits_standards
5181 if ($relative_dir eq '.')
5183 # In top level (or only) directory.
5184 require_file ("$am_file.am", GNITS, 'THANKS');
5188 ################################################################
5190 # Functions to handle files of each language.
5192 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5193 # simple formula: Return value is LANG_SUBDIR if the resulting object
5194 # file should be in a subdir if the source file is, LANG_PROCESS if
5195 # file is to be dealt with, LANG_IGNORE otherwise.
5197 # Much of the actual processing is handled in
5198 # handle_single_transform. These functions exist so that
5199 # auxiliary information can be recorded for a later cleanup pass.
5200 # Note that the calls to these functions are computed, so don't bother
5201 # searching for their precise names in the source.
5203 # This is just a convenience function that can be used to determine
5204 # when a subdir object should be used.
5207 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5210 # Rewrite a single C source file.
5213 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5215 if (option 'ansi2knr' && $base =~ /_$/)
5217 # FIXME: include line number in error.
5218 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5221 my $r = LANG_PROCESS;
5222 if (option 'subdir-objects')
5225 if ($directory && $directory ne '.')
5227 $base = $directory . '/' . $base;
5229 # libtool is always able to put the object at the proper place,
5230 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5231 msg_var ('portability', $var,
5232 "compiling `$base.c' in subdir requires "
5233 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5234 uniq_scope => US_GLOBAL,
5235 uniq_part => 'AM_PROG_CC_C_O subdir')
5236 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5239 # In this case we already have the directory information, so
5240 # don't add it again.
5241 $de_ansi_files{$base} = '';
5245 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5251 && $have_per_exec_flags
5252 && ! option 'subdir-objects'
5253 && $nonansi_obj ne '.lo')
5255 msg_var ('portability',
5256 $var, "compiling `$base.c' with per-target flags requires "
5257 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5258 uniq_scope => US_GLOBAL,
5259 uniq_part => 'AM_PROG_CC_C_O per-target')
5265 # Rewrite a single C++ source file.
5266 sub lang_cxx_rewrite
5268 return &lang_sub_obj;
5271 # Rewrite a single header file.
5272 sub lang_header_rewrite
5274 # Header files are simply ignored.
5278 # Rewrite a single yacc file.
5279 sub lang_yacc_rewrite
5281 my ($directory, $base, $ext) = @_;
5283 my $r = &lang_sub_obj;
5284 (my $newext = $ext) =~ tr/y/c/;
5285 return ($r, $newext);
5288 # Rewrite a single yacc++ file.
5289 sub lang_yaccxx_rewrite
5291 my ($directory, $base, $ext) = @_;
5293 my $r = &lang_sub_obj;
5294 (my $newext = $ext) =~ tr/y/c/;
5295 return ($r, $newext);
5298 # Rewrite a single lex file.
5299 sub lang_lex_rewrite
5301 my ($directory, $base, $ext) = @_;
5303 my $r = &lang_sub_obj;
5304 (my $newext = $ext) =~ tr/l/c/;
5305 return ($r, $newext);
5308 # Rewrite a single lex++ file.
5309 sub lang_lexxx_rewrite
5311 my ($directory, $base, $ext) = @_;
5313 my $r = &lang_sub_obj;
5314 (my $newext = $ext) =~ tr/l/c/;
5315 return ($r, $newext);
5318 # Rewrite a single assembly file.
5319 sub lang_asm_rewrite
5321 return &lang_sub_obj;
5324 # Rewrite a single preprocessed assembly file.
5325 sub lang_cppasm_rewrite
5327 return &lang_sub_obj;
5330 # Rewrite a single Fortran 77 file.
5331 sub lang_f77_rewrite
5333 return LANG_PROCESS;
5336 # Rewrite a single Fortran file.
5339 return LANG_PROCESS;
5342 # Rewrite a single preprocessed Fortran file.
5343 sub lang_ppfc_rewrite
5345 return LANG_PROCESS;
5348 # Rewrite a single preprocessed Fortran 77 file.
5349 sub lang_ppf77_rewrite
5351 return LANG_PROCESS;
5354 # Rewrite a single ratfor file.
5355 sub lang_ratfor_rewrite
5357 return LANG_PROCESS;
5360 # Rewrite a single Objective C file.
5361 sub lang_objc_rewrite
5363 return &lang_sub_obj;
5366 # Rewrite a single Unified Parallel C file.
5367 sub lang_upc_rewrite
5369 return &lang_sub_obj;
5372 # Rewrite a single Java file.
5373 sub lang_java_rewrite
5378 # The lang_X_finish functions are called after all source file
5379 # processing is done. Each should handle defining rules for the
5380 # language, etc. A finish function is only called if a source file of
5381 # the appropriate type has been seen.
5385 # Push all libobjs files onto de_ansi_files. We actually only
5386 # push files which exist in the current directory, and which are
5387 # genuine source files.
5388 foreach my $file (keys %libsources)
5390 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5392 $de_ansi_files{$1} = ''
5396 if (option 'ansi2knr' && keys %de_ansi_files)
5398 # Make all _.c files depend on their corresponding .c files.
5400 foreach my $base (sort keys %de_ansi_files)
5402 # Each _.c file must depend on ansi2knr; otherwise it
5403 # might be used in a parallel build before it is built.
5404 # We need to support files in the srcdir and in the build
5405 # dir (because these files might be auto-generated. But
5406 # we can't use $< -- some makes only define $< during a
5408 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5409 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5410 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5411 . '`if test -f $(srcdir)/' . $ansfile
5412 . '; then echo $(srcdir)/' . $ansfile
5413 . '; else echo ' . $ansfile . '; fi` '
5414 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5415 . '| $(ANSI2KNR) > $@'
5416 # If ansi2knr fails then we shouldn't
5417 # create the _.c file
5418 . " || rm -f \$\@\n");
5419 push (@objects, $base . '_.$(OBJEXT)');
5420 push (@objects, $base . '_.lo')
5423 # Explicitly clean the _.c files if they are in a
5424 # subdirectory. (In the current directory they get erased
5425 # by a `rm -f *_.c' rule.)
5426 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5427 if dirname ($base) ne '.';
5430 # Make all _.o (and _.lo) files depend on ansi2knr.
5431 # Use a sneaky little hack to make it print nicely.
5432 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5436 # This is a yacc helper which is called whenever we have decided to
5437 # compile a yacc file.
5438 sub lang_yacc_target_hook
5440 my ($self, $aggregate, $output, $input, %transform) = @_;
5442 my $flag = $aggregate . "_YFLAGS";
5443 my $flagvar = var $flag;
5444 my $YFLAGSvar = var 'YFLAGS';
5445 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5446 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5448 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5449 my $header = $output_base . '.h';
5451 # Found a `-d' that applies to the compilation of this file.
5452 # Add a dependency for the generated header file, and arrange
5453 # for that file to be included in the distribution.
5454 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5455 RULE_AUTOMAKE, TRUE,
5458 my $condstr = $cond->subst_string;
5460 "$condstr${header}: $output\n"
5461 # Recover from removal of $header
5462 . "$condstr\t\@if test ! -f \$@; then \\\n"
5463 . "$condstr\t rm -f $output; \\\n"
5464 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
5465 . "$condstr\telse :; fi\n";
5467 # Distribute the generated file, unless its .y source was
5468 # listed in a nodist_ variable. (&handle_source_transform
5469 # will set DIST_SOURCE.)
5470 &push_dist_common ($header)
5471 if $transform{'DIST_SOURCE'};
5473 # If the files are built in the build directory, then we want
5474 # to remove them with `make clean'. If they are in srcdir
5475 # they shouldn't be touched. However, we can't determine this
5476 # statically, and the GNU rules say that yacc/lex output files
5477 # should be removed by maintainer-clean. So that's what we
5479 $clean_files{$header} = MAINTAINER_CLEAN;
5481 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5482 # See the comment above for $HEADER.
5483 $clean_files{$output} = MAINTAINER_CLEAN;
5486 # This is a lex helper which is called whenever we have decided to
5487 # compile a lex file.
5488 sub lang_lex_target_hook
5490 my ($self, $aggregate, $output, $input) = @_;
5491 # If the files are built in the build directory, then we want to
5492 # remove them with `make clean'. If they are in srcdir they
5493 # shouldn't be touched. However, we can't determine this
5494 # statically, and the GNU rules say that yacc/lex output files
5495 # should be removed by maintainer-clean. So that's what we do.
5496 $clean_files{$output} = MAINTAINER_CLEAN;
5499 # This is a helper for both lex and yacc.
5500 sub yacc_lex_finish_helper
5502 return if defined $language_scratch{'lex-yacc-done'};
5503 $language_scratch{'lex-yacc-done'} = 1;
5505 # FIXME: for now, no line number.
5506 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5507 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5510 sub lang_yacc_finish
5512 return if defined $language_scratch{'yacc-done'};
5513 $language_scratch{'yacc-done'} = 1;
5515 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5517 yacc_lex_finish_helper;
5523 return if defined $language_scratch{'lex-done'};
5524 $language_scratch{'lex-done'} = 1;
5526 yacc_lex_finish_helper;
5530 # Given a hash table of linker names, pick the name that has the most
5531 # precedence. This is lame, but something has to have global
5532 # knowledge in order to eliminate the conflict. Add more linkers as
5538 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5540 return $l if defined $linkers{$l};
5545 # Called to indicate that an extension was used.
5549 if (! defined $extension_seen{$ext})
5551 $extension_seen{$ext} = 1;
5555 ++$extension_seen{$ext};
5559 # Return the number of files seen for a given language. Knows about
5560 # special cases we care about. FIXME: this is hideous. We need
5561 # something that involves real language objects. For instance yacc
5562 # and yaccxx could both derive from a common yacc class which would
5563 # know about the strange ylwrap requirement. (Or better yet we could
5564 # just not support legacy yacc!)
5565 sub count_files_for_language
5570 if ($name eq 'yacc' || $name eq 'yaccxx')
5572 @names = ('yacc', 'yaccxx');
5574 elsif ($name eq 'lex' || $name eq 'lexxx')
5576 @names = ('lex', 'lexxx');
5584 foreach $name (@names)
5586 my $lang = $languages{$name};
5587 foreach my $ext (@{$lang->extensions})
5589 $r += $extension_seen{$ext}
5590 if defined $extension_seen{$ext};
5597 # Called to ask whether source files have been seen . If HEADERS is 1,
5598 # headers can be included.
5603 # count all the sources
5605 foreach my $val (values %extension_seen)
5612 $count -= count_files_for_language ('header');
5619 # register_language (%ATTRIBUTE)
5620 # ------------------------------
5621 # Register a single language.
5622 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5623 sub register_language (%)
5629 unless defined $option{'ansi'};
5630 $option{'autodep'} = 'no'
5631 unless defined $option{'autodep'};
5632 $option{'linker'} = ''
5633 unless defined $option{'linker'};
5634 $option{'flags'} = []
5635 unless defined $option{'flags'};
5636 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5637 unless defined $option{'output_extensions'};
5638 $option{'nodist_specific'} = 0
5639 unless defined $option{'nodist_specific'};
5641 my $lang = new Language (%option);
5644 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5645 $languages{$lang->name} = $lang;
5646 my $link = $lang->linker;
5649 if (exists $link_languages{$link})
5651 prog_error ("`$link' has different definitions in "
5652 . $lang->name . " and " . $link_languages{$link}->name)
5653 if $lang->link ne $link_languages{$link}->link;
5657 $link_languages{$link} = $lang;
5661 # Update the pattern of known extensions.
5662 accept_extensions (@{$lang->extensions});
5664 # Upate the $suffix_rule map.
5665 foreach my $suffix (@{$lang->extensions})
5667 foreach my $dest (&{$lang->output_extensions} ($suffix))
5669 register_suffix_rule (INTERNAL, $suffix, $dest);
5674 # derive_suffix ($EXT, $OBJ)
5675 # --------------------------
5676 # This function is used to find a path from a user-specified suffix $EXT
5677 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5678 sub derive_suffix ($$)
5680 my ($source_ext, $obj) = @_;
5682 while (! $extension_map{$source_ext}
5683 && $source_ext ne $obj
5684 && exists $suffix_rules->{$source_ext}
5685 && exists $suffix_rules->{$source_ext}{$obj})
5687 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5694 ################################################################
5696 # Pretty-print something and append to output_rules.
5697 sub pretty_print_rule
5699 $output_rules .= &makefile_wrap (@_);
5703 ################################################################
5706 ## -------------------------------- ##
5707 ## Handling the conditional stack. ##
5708 ## -------------------------------- ##
5712 # make_conditional_string ($NEGATE, $COND)
5713 # ----------------------------------------
5714 sub make_conditional_string ($$)
5716 my ($negate, $cond) = @_;
5717 $cond = "${cond}_TRUE"
5718 unless $cond =~ /^TRUE|FALSE$/;
5719 $cond = Automake::Condition::conditional_negate ($cond)
5726 # cond_stack_if ($NEGATE, $COND, $WHERE)
5727 # --------------------------------------
5728 sub cond_stack_if ($$$)
5730 my ($negate, $cond, $where) = @_;
5732 error $where, "$cond does not appear in AM_CONDITIONAL"
5733 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5735 push (@cond_stack, make_conditional_string ($negate, $cond));
5737 return new Automake::Condition (@cond_stack);
5742 # cond_stack_else ($NEGATE, $COND, $WHERE)
5743 # ----------------------------------------
5744 sub cond_stack_else ($$$)
5746 my ($negate, $cond, $where) = @_;
5750 error $where, "else without if";
5754 $cond_stack[$#cond_stack] =
5755 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5757 # If $COND is given, check against it.
5760 $cond = make_conditional_string ($negate, $cond);
5762 error ($where, "else reminder ($negate$cond) incompatible with "
5763 . "current conditional: $cond_stack[$#cond_stack]")
5764 if $cond_stack[$#cond_stack] ne $cond;
5767 return new Automake::Condition (@cond_stack);
5772 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5773 # -----------------------------------------
5774 sub cond_stack_endif ($$$)
5776 my ($negate, $cond, $where) = @_;
5781 error $where, "endif without if";
5785 # If $COND is given, check against it.
5788 $cond = make_conditional_string ($negate, $cond);
5790 error ($where, "endif reminder ($negate$cond) incompatible with "
5791 . "current conditional: $cond_stack[$#cond_stack]")
5792 if $cond_stack[$#cond_stack] ne $cond;
5797 return new Automake::Condition (@cond_stack);
5804 ## ------------------------ ##
5805 ## Handling the variables. ##
5806 ## ------------------------ ##
5809 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
5810 # -----------------------------------------------------
5811 # Like define_variable, but the value is a list, and the variable may
5812 # be defined conditionally. The second argument is the Condition
5813 # under which the value should be defined; this should be the empty
5814 # string to define the variable unconditionally. The third argument
5815 # is a list holding the values to use for the variable. The value is
5816 # pretty printed in the output file.
5817 sub define_pretty_variable ($$$@)
5819 my ($var, $cond, $where, @value) = @_;
5821 if (! vardef ($var, $cond))
5823 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
5824 '', $where, VAR_PRETTY);
5825 rvar ($var)->rdef ($cond)->set_seen;
5830 # define_variable ($VAR, $VALUE, $WHERE)
5831 # --------------------------------------
5832 # Define a new Automake Makefile variable VAR to VALUE, but only if
5833 # not already defined.
5834 sub define_variable ($$$)
5836 my ($var, $value, $where) = @_;
5837 define_pretty_variable ($var, TRUE, $where, $value);
5841 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
5842 # -----------------------------------------------------------
5843 # Define the $VAR which content is the list of file names composed of
5844 # a @BASENAME and the $EXTENSION.
5845 sub define_files_variable ($\@$$)
5847 my ($var, $basename, $extension, $where) = @_;
5848 define_variable ($var,
5849 join (' ', map { "$_.$extension" } @$basename),
5854 # Like define_variable, but define a variable to be the configure
5855 # substitution by the same name.
5856 sub define_configure_variable ($)
5860 my $pretty = VAR_ASIS;
5861 my $owner = VAR_CONFIGURE;
5863 # Some variables we do not want to output. For instance it
5864 # would be a bad idea to output `U = @U@` when `@U@` can be
5865 # substituted as `\`.
5866 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
5868 # ANSI2KNR is a variable that Automake wants to redefine, so
5869 # it must be owned by Automake. (It is also used as a proof
5870 # that AM_C_PROTOTYPES has been run, that's why we do not simply
5871 # omit the AC_SUBST.)
5872 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
5874 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
5875 '', $configure_vars{$var}, $pretty);
5879 # define_compiler_variable ($LANG)
5880 # --------------------------------
5881 # Define a compiler variable. We also handle defining the `LT'
5882 # version of the command when using libtool.
5883 sub define_compiler_variable ($)
5887 my ($var, $value) = ($lang->compiler, $lang->compile);
5888 my $libtool_tag = '';
5889 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5890 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5891 &define_variable ($var, $value, INTERNAL);
5892 &define_variable ("LT$var",
5893 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5894 . "\$(LIBTOOLFLAGS) --mode=compile $value",
5900 # define_linker_variable ($LANG)
5901 # ------------------------------
5902 # Define linker variables.
5903 sub define_linker_variable ($)
5907 my $libtool_tag = '';
5908 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5909 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5911 &define_variable ($lang->lder, $lang->ld, INTERNAL);
5912 # CCLINK = $(CCLD) blah blah...
5913 &define_variable ($lang->linker,
5915 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5916 . "\$(LIBTOOLFLAGS) --mode=link " : '')
5921 sub define_per_target_linker_variable ($$)
5923 my ($linker, $target) = @_;
5925 # If the user wrote a custom link command, we don't define ours.
5926 return "${target}_LINK"
5927 if set_seen "${target}_LINK";
5929 my $xlink = $linker ? $linker : 'LINK';
5931 my $lang = $link_languages{$xlink};
5932 prog_error "Unknown language for linker variable `$xlink'"
5935 my $link_command = $lang->link;
5938 my $libtool_tag = '';
5939 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5940 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5943 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
5944 . "--mode=link " . $link_command;
5947 # Rewrite each occurrence of `AM_$flag' in the link
5948 # command into `${derived}_$flag' if it exists.
5949 my $orig_command = $link_command;
5950 my @flags = (@{$lang->flags}, 'LDFLAGS');
5951 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
5952 for my $flag (@flags)
5954 my $val = "${target}_$flag";
5955 $link_command =~ s/\(AM_$flag\)/\($val\)/
5959 # If the computed command is the same as the generic command, use
5960 # the command linker variable.
5961 return $lang->linker
5962 if $link_command eq $orig_command;
5964 &define_variable ("${target}_LINK", $link_command, INTERNAL);
5965 return "${target}_LINK";
5968 ################################################################
5970 # &check_trailing_slash ($WHERE, $LINE)
5971 # --------------------------------------
5972 # Return 1 iff $LINE ends with a slash.
5973 # Might modify $LINE.
5974 sub check_trailing_slash ($\$)
5976 my ($where, $line) = @_;
5978 # Ignore `##' lines.
5979 return 0 if $$line =~ /$IGNORE_PATTERN/o;
5981 # Catch and fix a common error.
5982 msg "syntax", $where, "whitespace following trailing backslash"
5983 if $$line =~ s/\\\s+\n$/\\\n/;
5985 return $$line =~ /\\$/;
5989 # &read_am_file ($AMFILE, $WHERE)
5990 # -------------------------------
5991 # Read Makefile.am and set up %contents. Simultaneously copy lines
5992 # from Makefile.am into $output_trailer, or define variables as
5993 # appropriate. NOTE we put rules in the trailer section. We want
5994 # user rules to come after our generated stuff.
5995 sub read_am_file ($$)
5997 my ($amfile, $where) = @_;
5999 my $am_file = new Automake::XFile ("< $amfile");
6000 verb "reading $amfile";
6002 # Keep track of the youngest output dependency.
6003 my $mtime = mtime $amfile;
6004 $output_deps_greatest_timestamp = $mtime
6005 if $mtime > $output_deps_greatest_timestamp;
6011 my $var_look = VAR_ASIS;
6013 use constant IN_VAR_DEF => 0;
6014 use constant IN_RULE_DEF => 1;
6015 use constant IN_COMMENT => 2;
6016 my $prev_state = IN_RULE_DEF;
6018 while ($_ = $am_file->getline)
6020 $where->set ("$amfile:$.");
6021 if (/$IGNORE_PATTERN/o)
6023 # Merely delete comments beginning with two hashes.
6025 elsif (/$WHITE_PATTERN/o)
6027 error $where, "blank line following trailing backslash"
6029 # Stick a single white line before the incoming macro or rule.
6032 # Flush all comments seen so far.
6035 $output_vars .= $comment;
6039 elsif (/$COMMENT_PATTERN/o)
6041 # Stick comments before the incoming macro or rule. Make
6042 # sure a blank line precedes the first block of comments.
6043 $spacing = "\n" unless $blank;
6045 $comment .= $spacing . $_;
6047 $prev_state = IN_COMMENT;
6053 $saw_bk = check_trailing_slash ($where, $_);
6056 # We save the conditional stack on entry, and then check to make
6057 # sure it is the same on exit. This lets us conditionally include
6059 my @saved_cond_stack = @cond_stack;
6060 my $cond = new Automake::Condition (@cond_stack);
6062 my $last_var_name = '';
6063 my $last_var_type = '';
6064 my $last_var_value = '';
6066 # FIXME: shouldn't use $_ in this loop; it is too big.
6069 $where->set ("$amfile:$.");
6071 # Make sure the line is \n-terminated.
6075 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6076 # used by users. @MAINT@ is an anachronism now.
6077 $_ =~ s/\@MAINT\@//g
6078 unless $seen_maint_mode;
6080 my $new_saw_bk = check_trailing_slash ($where, $_);
6082 if (/$IGNORE_PATTERN/o)
6084 # Merely delete comments beginning with two hashes.
6086 # Keep any backslash from the previous line.
6087 $new_saw_bk = $saw_bk;
6089 elsif (/$WHITE_PATTERN/o)
6091 # Stick a single white line before the incoming macro or rule.
6093 error $where, "blank line following trailing backslash"
6096 elsif (/$COMMENT_PATTERN/o)
6098 error $where, "comment following trailing backslash"
6099 if $saw_bk && $comment eq '';
6101 # Stick comments before the incoming macro or rule.
6102 $comment .= $spacing . $_;
6104 $prev_state = IN_COMMENT;
6108 if ($prev_state == IN_RULE_DEF)
6110 my $cond = new Automake::Condition @cond_stack;
6111 $output_trailer .= $cond->subst_string;
6112 $output_trailer .= $_;
6114 elsif ($prev_state == IN_COMMENT)
6116 # If the line doesn't start with a `#', add it.
6117 # We do this because a continued comment like
6121 # is not portable. BSD make doesn't honor
6122 # escaped newlines in comments.
6124 $comment .= $spacing . $_;
6126 else # $prev_state == IN_VAR_DEF
6128 $last_var_value .= ' '
6129 unless $last_var_value =~ /\s$/;
6130 $last_var_value .= $_;
6134 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6135 $last_var_type, $cond,
6136 $last_var_value, $comment,
6137 $last_where, VAR_ASIS)
6139 $comment = $spacing = '';
6144 elsif (/$IF_PATTERN/o)
6146 $cond = cond_stack_if ($1, $2, $where);
6148 elsif (/$ELSE_PATTERN/o)
6150 $cond = cond_stack_else ($1, $2, $where);
6152 elsif (/$ENDIF_PATTERN/o)
6154 $cond = cond_stack_endif ($1, $2, $where);
6157 elsif (/$RULE_PATTERN/o)
6160 $prev_state = IN_RULE_DEF;
6162 # For now we have to output all definitions of user rules
6163 # and can't diagnose duplicates (see the comment in
6164 # Automake::Rule::define). So we go on and ignore the return value.
6165 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6167 check_variable_expansions ($_, $where);
6169 $output_trailer .= $comment . $spacing;
6170 my $cond = new Automake::Condition @cond_stack;
6171 $output_trailer .= $cond->subst_string;
6172 $output_trailer .= $_;
6173 $comment = $spacing = '';
6175 elsif (/$ASSIGNMENT_PATTERN/o)
6177 # Found a macro definition.
6178 $prev_state = IN_VAR_DEF;
6179 $last_var_name = $1;
6180 $last_var_type = $2;
6181 $last_var_value = $3;
6182 $last_where = $where->clone;
6183 if ($3 ne '' && substr ($3, -1) eq "\\")
6185 # We preserve the `\' because otherwise the long lines
6186 # that are generated will be truncated by broken
6188 $last_var_value = $3 . "\n";
6190 # Normally we try to output variable definitions in the
6191 # same format they were input. However, POSIX compliant
6192 # systems are not required to support lines longer than
6193 # 2048 bytes (most notably, some sed implementation are
6194 # limited to 4000 bytes, and sed is used by config.status
6195 # to rewrite Makefile.in into Makefile). Moreover nobody
6196 # would really write such long lines by hand since it is
6197 # hardly maintainable. So if a line is longer that 1000
6198 # bytes (an arbitrary limit), assume it has been
6199 # automatically generated by some tools, and flatten the
6200 # variable definition. Otherwise, keep the variable as it
6202 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6206 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6207 $last_var_type, $cond,
6208 $last_var_value, $comment,
6209 $last_where, $var_look)
6211 $comment = $spacing = '';
6212 $var_look = VAR_ASIS;
6215 elsif (/$INCLUDE_PATTERN/o)
6219 if ($path =~ s/^\$\(top_srcdir\)\///)
6221 push (@include_stack, "\$\(top_srcdir\)/$path");
6222 # Distribute any included file.
6224 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6225 # otherwise OSF make will implicitly copy the included
6226 # file in the build tree during `make distdir' to satisfy
6228 # (subdircond2.test and subdircond3.test will fail.)
6229 push_dist_common ("\$\(top_srcdir\)/$path");
6233 $path =~ s/\$\(srcdir\)\///;
6234 push (@include_stack, "\$\(srcdir\)/$path");
6235 # Always use the $(srcdir) prefix in DIST_COMMON,
6236 # otherwise OSF make will implicitly copy the included
6237 # file in the build tree during `make distdir' to satisfy
6239 # (subdircond2.test and subdircond3.test will fail.)
6240 push_dist_common ("\$\(srcdir\)/$path");
6241 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6243 $where->push_context ("`$path' included from here");
6244 &read_am_file ($path, $where);
6245 $where->pop_context;
6249 # This isn't an error; it is probably a continued rule.
6250 # In fact, this is what we assume.
6251 $prev_state = IN_RULE_DEF;
6252 check_variable_expansions ($_, $where);
6253 $output_trailer .= $comment . $spacing;
6254 my $cond = new Automake::Condition @cond_stack;
6255 $output_trailer .= $cond->subst_string;
6256 $output_trailer .= $_;
6257 $comment = $spacing = '';
6258 error $where, "`#' comment at start of rule is unportable"
6259 if $_ =~ /^\t\s*\#/;
6262 $saw_bk = $new_saw_bk;
6263 $_ = $am_file->getline;
6266 $output_trailer .= $comment;
6268 error ($where, "trailing backslash on last line")
6271 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6272 : "too many conditionals closed in include file"))
6273 if "@saved_cond_stack" ne "@cond_stack";
6277 # define_standard_variables ()
6278 # ----------------------------
6279 # A helper for read_main_am_file which initializes configure variables
6280 # and variables from header-vars.am.
6281 sub define_standard_variables
6283 my $saved_output_vars = $output_vars;
6284 my ($comments, undef, $rules) =
6285 file_contents_internal (1, "$libdir/am/header-vars.am",
6286 new Automake::Location);
6288 foreach my $var (sort keys %configure_vars)
6290 &define_configure_variable ($var);
6293 $output_vars .= $comments . $rules;
6296 # Read main am file.
6297 sub read_main_am_file
6301 # This supports the strange variable tricks we are about to play.
6302 prog_error (macros_dump () . "variable defined before read_main_am_file")
6303 if (scalar (variables) > 0);
6305 # Generate copyright header for generated Makefile.in.
6306 # We do discard the output of predefined variables, handled below.
6307 $output_vars = ("# $in_file_name generated by automake "
6308 . $VERSION . " from $am_file_name.\n");
6309 $output_vars .= '# ' . subst ('configure_input') . "\n";
6310 $output_vars .= $gen_copyright;
6312 # We want to predefine as many variables as possible. This lets
6313 # the user set them with `+=' in Makefile.am.
6314 &define_standard_variables;
6316 # Read user file, which might override some of our values.
6317 &read_am_file ($amfile, new Automake::Location);
6322 ################################################################
6325 # &flatten ($STRING)
6326 # ------------------
6327 # Flatten the $STRING and return the result.
6340 # transform($TOKEN, \%PAIRS)
6341 # ==========================
6342 # If ($TOKEN, $VAL) is in %PAIRS:
6343 # - replaces %$TOKEN% with $VAL,
6344 # - enables/disables ?$TOKEN? and ?!$TOKEN?,
6345 # - replaces %?$TOKEN% with TRUE or FALSE.
6348 my ($token, $transform) = @_;
6350 if (substr ($token, 0, 1) eq '%')
6352 my $cond = (substr ($token, 1, 1) eq '?') ? 1 : 0;
6353 $token = substr ($token, 1 + $cond, -1);
6354 my $val = $transform->{$token};
6355 prog_error "Unknown %token% `$token'" unless defined $val;
6358 return $val ? 'TRUE' : 'FALSE';
6365 # Now $token is '?xxx?' or '?!xxx?'.
6366 my $neg = (substr ($token, 1, 1) eq '!') ? 1 : 0;
6367 $token = substr ($token, 1 + $neg, -1);
6368 my $val = $transform->{$token};
6369 prog_error "Unknown ?token? `$token' (neg = $neg)" unless defined $val;
6370 return (!!$val == $neg) ? '##%' : '';
6374 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6375 # ------------------------------------------
6376 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6378 sub make_paragraphs ($%)
6380 my ($file, %transform) = @_;
6382 # Complete %transform with global options.
6383 # Note that %transform goes last, so it overrides global options.
6384 %transform = ('CYGNUS' => !! option 'cygnus',
6386 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6388 'BZIP2' => !! option 'dist-bzip2',
6389 'COMPRESS' => !! option 'dist-tarZ',
6390 'GZIP' => ! option 'no-dist-gzip',
6391 'SHAR' => !! option 'dist-shar',
6392 'ZIP' => !! option 'dist-zip',
6394 'INSTALL-INFO' => ! option 'no-installinfo',
6395 'INSTALL-MAN' => ! option 'no-installman',
6396 'CK-NEWS' => !! option 'check-news',
6398 'SUBDIRS' => !! var ('SUBDIRS'),
6399 'TOPDIR_P' => $relative_dir eq '.',
6401 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6402 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6403 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6405 'LIBTOOL' => !! var ('LIBTOOL'),
6407 'FIRST' => ! $transformed_files{$file},
6410 $transformed_files{$file} = 1;
6411 $_ = $am_file_cache{$file};
6415 verb "reading $file";
6416 # Swallow the whole file.
6417 my $fc_file = new Automake::XFile "< $file";
6418 my $saved_dollar_slash = $/;
6420 $_ = $fc_file->getline;
6421 $/ = $saved_dollar_slash;
6424 # Remove ##-comments.
6425 # Besides we don't need more than two consecutive new-lines.
6426 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6428 $am_file_cache{$file} = $_;
6431 # Substitute Automake template tokens.
6432 s/(?:%\??[\w\-]+%|\?!?[\w\-]+\?)/transform($&, \%transform)/ge;
6433 # transform() may have added some ##%-comments to strip.
6434 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
6435 # ####### and do not remove the latter.)
6436 s/^[ \t]*(?:##%)+.*\n//gm;
6438 # Split at unescaped new lines.
6439 my @lines = split (/(?<!\\)\n/, $_);
6442 while (defined ($_ = shift @lines))
6445 # If we are a rule, eat as long as we start with a tab.
6446 if (/$RULE_PATTERN/smo)
6448 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6450 $paragraph .= "\n$_";
6452 unshift (@lines, $_);
6455 # If we are a comments, eat as much comments as you can.
6456 elsif (/$COMMENT_PATTERN/smo)
6458 while (defined ($_ = shift @lines)
6459 && $_ =~ /$COMMENT_PATTERN/smo)
6461 $paragraph .= "\n$_";
6463 unshift (@lines, $_);
6466 push @res, $paragraph;
6474 # ($COMMENT, $VARIABLES, $RULES)
6475 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6476 # -------------------------------------------------------------
6477 # Return contents of a file from $libdir/am, automatically skipping
6478 # macros or rules which are already known. $IS_AM iff the caller is
6479 # reading an Automake file (as opposed to the user's Makefile.am).
6480 sub file_contents_internal ($$$%)
6482 my ($is_am, $file, $where, %transform) = @_;
6484 $where->set ($file);
6486 my $result_vars = '';
6487 my $result_rules = '';
6491 # The following flags are used to track rules spanning across
6492 # multiple paragraphs.
6493 my $is_rule = 0; # 1 if we are processing a rule.
6494 my $discard_rule = 0; # 1 if the current rule should not be output.
6496 # We save the conditional stack on entry, and then check to make
6497 # sure it is the same on exit. This lets us conditionally include
6499 my @saved_cond_stack = @cond_stack;
6500 my $cond = new Automake::Condition (@cond_stack);
6502 foreach (make_paragraphs ($file, %transform))
6504 # FIXME: no line number available.
6505 $where->set ($file);
6508 error $where, "blank line following trailing backslash:\n$_"
6510 error $where, "comment following trailing backslash:\n$_"
6516 # Stick empty line before the incoming macro or rule.
6519 elsif (/$COMMENT_PATTERN/mso)
6522 # Stick comments before the incoming macro or rule.
6526 # Handle inclusion of other files.
6527 elsif (/$INCLUDE_PATTERN/o)
6531 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6532 $where->push_context ("`$file' included from here");
6534 my ($com, $vars, $rules)
6535 = file_contents_internal ($is_am, $file, $where, %transform);
6536 $where->pop_context;
6538 $result_vars .= $vars;
6539 $result_rules .= $rules;
6543 # Handling the conditionals.
6544 elsif (/$IF_PATTERN/o)
6546 $cond = cond_stack_if ($1, $2, $file);
6548 elsif (/$ELSE_PATTERN/o)
6550 $cond = cond_stack_else ($1, $2, $file);
6552 elsif (/$ENDIF_PATTERN/o)
6554 $cond = cond_stack_endif ($1, $2, $file);
6558 elsif (/$RULE_PATTERN/mso)
6562 # Separate relationship from optional actions: the first
6563 # `new-line tab" not preceded by backslash (continuation
6566 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6567 my ($relationship, $actions) = ($1, $2 || '');
6569 # Separate targets from dependencies: the first colon.
6570 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6571 my ($targets, $dependencies) = ($1, $2);
6572 # Remove the escaped new lines.
6573 # I don't know why, but I have to use a tmp $flat_deps.
6574 my $flat_deps = &flatten ($dependencies);
6575 my @deps = split (' ', $flat_deps);
6577 foreach (split (' ' , $targets))
6579 # FIXME: 1. We are not robust to people defining several targets
6580 # at once, only some of them being in %dependencies. The
6581 # actions from the targets in %dependencies are usually generated
6582 # from the content of %actions, but if some targets in $targets
6583 # are not in %dependencies the ELSE branch will output
6584 # a rule for all $targets (i.e. the targets which are both
6585 # in %dependencies and $targets will have two rules).
6587 # FIXME: 2. The logic here is not able to output a
6588 # multi-paragraph rule several time (e.g. for each condition
6589 # it is defined for) because it only knows the first paragraph.
6591 # FIXME: 3. We are not robust to people defining a subset
6592 # of a previously defined "multiple-target" rule. E.g.
6593 # `foo:' after `foo bar:'.
6595 # Output only if not in FALSE.
6596 if (defined $dependencies{$_} && $cond != FALSE)
6598 &depend ($_, @deps);
6601 $actions{$_} .= "\n$actions" if $actions;
6605 $actions{$_} = $actions;
6610 # Free-lance dependency. Output the rule for all the
6611 # targets instead of one by one.
6612 my @undefined_conds =
6613 Automake::Rule::define ($targets, $file,
6614 $is_am ? RULE_AUTOMAKE : RULE_USER,
6616 for my $undefined_cond (@undefined_conds)
6618 my $condparagraph = $paragraph;
6619 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6620 $result_rules .= "$spacing$comment$condparagraph\n";
6622 if (scalar @undefined_conds == 0)
6624 # Remember to discard next paragraphs
6625 # if they belong to this rule.
6626 # (but see also FIXME: #2 above.)
6629 $comment = $spacing = '';
6635 elsif (/$ASSIGNMENT_PATTERN/mso)
6637 my ($var, $type, $val) = ($1, $2, $3);
6638 error $where, "variable `$var' with trailing backslash"
6643 Automake::Variable::define ($var,
6644 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6645 $type, $cond, $val, $comment, $where,
6649 $comment = $spacing = '';
6653 # This isn't an error; it is probably some tokens which
6654 # configure is supposed to replace, such as `@SET-MAKE@',
6655 # or some part of a rule cut by an if/endif.
6656 if (! $cond->false && ! ($is_rule && $discard_rule))
6658 s/^/$cond->subst_string/gme;
6659 $result_rules .= "$spacing$comment$_\n";
6661 $comment = $spacing = '';
6665 error ($where, @cond_stack ?
6666 "unterminated conditionals: @cond_stack" :
6667 "too many conditionals closed in include file")
6668 if "@saved_cond_stack" ne "@cond_stack";
6670 return ($comment, $result_vars, $result_rules);
6675 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6676 # ------------------------------------------------
6677 # Return contents of a file from $libdir/am, automatically skipping
6678 # macros or rules which are already known.
6679 sub file_contents ($$%)
6681 my ($basename, $where, %transform) = @_;
6682 my ($comments, $variables, $rules) =
6683 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6685 return "$comments$variables$rules";
6690 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6691 # -----------------------------------------------------
6692 # Find all variable prefixes that are used for install directories. A
6693 # prefix `zar' qualifies iff:
6695 # * `zardir' is a variable.
6696 # * `zar_PRIMARY' is a variable.
6698 # As a side effect, it looks for misspellings. It is an error to have
6699 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6700 # "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
6701 # of the same name (with "dir" appended) exists. For instance, if the
6702 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6703 # This is to provide a little extra flexibility in those cases which
6705 sub am_primary_prefixes ($$@)
6707 my ($primary, $can_dist, @prefixes) = @_;
6710 my %valid = map { $_ => 0 } @prefixes;
6711 $valid{'EXTRA'} = 0;
6712 foreach my $var (variables $primary)
6714 # Automake is allowed to define variables that look like primaries
6715 # but which aren't. E.g. INSTALL_sh_DATA.
6716 # Autoconf can also define variables like INSTALL_DATA, so
6717 # ignore all configure variables (at least those which are not
6718 # redefined in Makefile.am).
6719 # FIXME: We should make sure that these variables are not
6720 # conditionally defined (or else adjust the condition below).
6721 my $def = $var->def (TRUE);
6722 next if $def && $def->owner != VAR_MAKEFILE;
6724 my $varname = $var->name;
6726 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
6728 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6729 if ($dist ne '' && ! $can_dist)
6732 "invalid variable `$varname': `dist' is forbidden");
6734 # Standard directories must be explicitly allowed.
6735 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6738 "`${X}dir' is not a legitimate directory " .
6741 # A not explicitly valid directory is allowed if Xdir is defined.
6742 elsif (! defined $valid{$X} &&
6743 $var->requires_variables ("`$varname' is used", "${X}dir"))
6745 # Nothing to do. Any error message has been output
6746 # by $var->requires_variables.
6750 # Ensure all extended prefixes are actually used.
6751 $valid{"$base$dist$X"} = 1;
6756 prog_error "unexpected variable name: $varname";
6760 # Return only those which are actually defined.
6761 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6765 # Handle `where_HOW' variable magic. Does all lookups, generates
6766 # install code, and possibly generates code to define the primary
6767 # variable. The first argument is the name of the .am file to munge,
6768 # the second argument is the primary variable (e.g. HEADERS), and all
6769 # subsequent arguments are possible installation locations.
6771 # Returns list of [$location, $value] pairs, where
6772 # $value's are the values in all where_HOW variable, and $location
6773 # there associated location (the place here their parent variables were
6776 # FIXME: this should be rewritten to be cleaner. It should be broken
6777 # up into multiple functions.
6779 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6786 my $default_dist = 0;
6789 if ($args[0] eq '-noextra')
6793 elsif ($args[0] eq '-candist')
6797 elsif ($args[0] eq '-defaultdist')
6802 elsif ($args[0] !~ /^-/)
6809 my ($file, $primary, @prefix) = @args;
6811 # Now that configure substitutions are allowed in where_HOW
6812 # variables, it is an error to actually define the primary. We
6813 # allow `JAVA', as it is customarily used to mean the Java
6814 # interpreter. This is but one of several Java hacks. Similarly,
6815 # `PYTHON' is customarily used to mean the Python interpreter.
6816 reject_var $primary, "`$primary' is an anachronism"
6817 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
6819 # Get the prefixes which are valid and actually used.
6820 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
6822 # If a primary includes a configure substitution, then the EXTRA_
6823 # form is required. Otherwise we can't properly do our job.
6829 foreach my $X (@prefix)
6831 my $nodir_name = $X;
6832 my $one_name = $X . '_' . $primary;
6833 my $one_var = var $one_name;
6835 my $strip_subdir = 1;
6836 # If subdir prefix should be preserved, do so.
6837 if ($nodir_name =~ /^nobase_/)
6840 $nodir_name =~ s/^nobase_//;
6843 # If files should be distributed, do so.
6847 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
6848 || (! $default_dist && $nodir_name =~ /^dist_/));
6849 $nodir_name =~ s/^(dist|nodist)_//;
6853 # Use the location of the currently processed variable.
6854 # We are not processing a particular condition, so pick the first
6856 my $tmpcond = $one_var->conditions->one_cond;
6857 my $where = $one_var->rdef ($tmpcond)->location->clone;
6859 # Append actual contents of where_PRIMARY variable to
6860 # @result, skipping @substitutions@.
6861 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
6863 my ($loc, $value) = @$locvals;
6864 # Skip configure substitutions.
6865 if ($value =~ /^\@.*\@$/)
6867 if ($nodir_name eq 'EXTRA')
6870 "`$one_name' contains configure substitution, "
6873 # Check here to make sure variables defined in
6874 # configure.ac do not imply that EXTRA_PRIMARY
6876 elsif (! defined $configure_vars{$one_name})
6878 $require_extra = $one_name
6884 push (@result, $locvals);
6887 # A blatant hack: we rewrite each _PROGRAMS primary to include
6889 append_exeext { 1 } $one_name
6890 if $primary eq 'PROGRAMS';
6891 # "EXTRA" shouldn't be used when generating clean targets,
6892 # all, or install targets. We used to warn if EXTRA_FOO was
6893 # defined uselessly, but this was annoying.
6895 if $nodir_name eq 'EXTRA';
6897 if ($nodir_name eq 'check')
6899 push (@check, '$(' . $one_name . ')');
6903 push (@used, '$(' . $one_name . ')');
6906 # Is this to be installed?
6907 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
6909 # If so, with install-exec? (or install-data?).
6910 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
6912 my $check_options_p = $install_p && !! option 'std-options';
6914 # Use the location of the currently processed variable as context.
6915 $where->push_context ("while processing `$one_name'");
6917 # The variable containing all file to distribute.
6918 my $distvar = "\$($one_name)";
6919 $distvar = shadow_unconditionally ($one_name, $where)
6920 if ($dist_p && $one_var->has_conditional_contents);
6922 # Singular form of $PRIMARY.
6923 (my $one_primary = $primary) =~ s/S$//;
6924 $output_rules .= &file_contents ($file, $where,
6925 PRIMARY => $primary,
6926 ONE_PRIMARY => $one_primary,
6928 NDIR => $nodir_name,
6929 BASE => $strip_subdir,
6932 INSTALL => $install_p,
6934 DISTVAR => $distvar,
6935 'CK-OPTS' => $check_options_p);
6938 # The JAVA variable is used as the name of the Java interpreter.
6939 # The PYTHON variable is used as the name of the Python interpreter.
6940 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
6943 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
6944 $output_vars .= "\n";
6947 err_var ($require_extra,
6948 "`$require_extra' contains configure substitution,\n"
6949 . "but `EXTRA_$primary' not defined")
6950 if ($require_extra && ! var ('EXTRA_' . $primary));
6952 # Push here because PRIMARY might be configure time determined.
6953 push (@all, '$(' . $primary . ')')
6954 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
6956 # Make the result unique. This lets the user use conditionals in
6957 # a natural way, but still lets us program lazily -- we don't have
6958 # to worry about handling a particular object more than once.
6959 # We will keep only one location per object.
6961 for my $pair (@result)
6963 my ($loc, $val) = @$pair;
6964 $result{$val} = $loc;
6966 my @l = sort keys %result;
6967 return map { [$result{$_}->clone, $_] } @l;
6971 ################################################################
6973 # Each key in this hash is the name of a directory holding a
6974 # Makefile.in. These variables are local to `is_make_dir'.
6976 my $make_dirs_set = 0;
6981 if (! $make_dirs_set)
6983 foreach my $iter (@configure_input_files)
6985 $make_dirs{dirname ($iter)} = 1;
6987 # We also want to notice Makefile.in's.
6988 foreach my $iter (@other_input_files)
6990 if ($iter =~ /Makefile\.in$/)
6992 $make_dirs{dirname ($iter)} = 1;
6997 return defined $make_dirs{$dir};
7000 ################################################################
7002 # Find the aux dir. This should match the algorithm used by
7003 # ./configure. (See the Autoconf documentation for for
7004 # AC_CONFIG_AUX_DIR.)
7005 sub locate_aux_dir ()
7007 if (! $config_aux_dir_set_in_configure_ac)
7009 # The default auxiliary directory is the first
7010 # of ., .., or ../.. that contains install-sh.
7011 # Assume . if install-sh doesn't exist yet.
7012 for my $dir (qw (. .. ../..))
7014 if (-f "$dir/install-sh")
7016 $config_aux_dir = $dir;
7020 $config_aux_dir = '.' unless $config_aux_dir;
7022 # Avoid unsightly '/.'s.
7023 $am_config_aux_dir =
7024 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7025 $am_config_aux_dir =~ s,/*$,,;
7029 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7030 # --------------------------------------------------
7031 # See if we want to push this file onto dist_common. This function
7032 # encodes the rules for deciding when to do so.
7033 sub maybe_push_required_file
7035 my ($dir, $file, $fullfile) = @_;
7037 if ($dir eq $relative_dir)
7039 push_dist_common ($file);
7042 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7044 # If we are doing the topmost directory, and the file is in a
7045 # subdir which does not have a Makefile, then we distribute it
7048 # If a required file is above the source tree, it is important
7049 # to prefix it with `$(srcdir)' so that no VPATH search is
7050 # performed. Otherwise problems occur with Make implementations
7051 # that rewrite and simplify rules whose dependencies are found in a
7052 # VPATH location. Here is an example with OSF1/Tru64 Make.
7064 # Dependency `../a' was found in `sub/../a', but this make
7065 # implementation simplified it as `a'. (Note that the sub/
7066 # directory does not even exist.)
7068 # This kind of VPATH rewriting seems hard to cancel. The
7069 # distdir.am hack against VPATH rewriting works only when no
7070 # simplification is done, i.e., for dependencies which are in
7071 # subdirectories, not in enclosing directories. Hence, in
7072 # the latter case we use a full path to make sure no VPATH
7074 $fullfile = '$(srcdir)/' . $fullfile
7075 if $dir =~ m,^\.\.(?:$|/),;
7077 push_dist_common ($fullfile);
7084 # If a file name appears as a key in this hash, then it has already
7085 # been checked for. This allows us not to report the same error more
7087 my %required_file_not_found = ();
7089 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7090 # --------------------------------------------------------------
7091 # Verify that the file must exist in $DIRECTORY, or install it.
7092 # $MYSTRICT is the strictness level at which this file becomes required.
7093 sub require_file_internal ($$$@)
7095 my ($where, $mystrict, $dir, @files) = @_;
7097 foreach my $file (@files)
7099 my $fullfile = "$dir/$file";
7101 my $dangling_sym = 0;
7103 if (-l $fullfile && ! -f $fullfile)
7107 elsif (dir_has_case_matching_file ($dir, $file))
7110 maybe_push_required_file ($dir, $file, $fullfile);
7113 # `--force-missing' only has an effect if `--add-missing' is
7115 if ($found_it && (! $add_missing || ! $force_missing))
7121 # If we've already looked for it, we're done. You might
7122 # wonder why we don't do this before searching for the
7123 # file. If we do that, then something like
7124 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7128 next if defined $required_file_not_found{$fullfile};
7129 $required_file_not_found{$fullfile} = 1;
7132 if ($strictness >= $mystrict)
7134 if ($dangling_sym && $add_missing)
7142 # Only install missing files according to our desired
7144 my $message = "required file `$fullfile' not found";
7147 if (-f "$libdir/$file")
7151 # Install the missing file. Symlink if we
7152 # can, copy if we must. Note: delete the file
7153 # first, in case it is a dangling symlink.
7154 $message = "installing `$fullfile'";
7155 # Windows Perl will hang if we try to delete a
7156 # file that doesn't exist.
7157 unlink ($fullfile) if -f $fullfile;
7158 if ($symlink_exists && ! $copy_missing)
7160 if (! symlink ("$libdir/$file", $fullfile))
7163 $trailer = "; error while making link: $!";
7166 elsif (system ('cp', "$libdir/$file", $fullfile))
7169 $trailer = "\n error while copying";
7171 reset_dir_cache ($dir);
7174 if (! maybe_push_required_file (dirname ($fullfile),
7177 if (! $found_it && ! $automake_will_process_aux_dir)
7179 # We have added the file but could not push it
7180 # into DIST_COMMON, probably because this is
7181 # an auxiliary file and we are not processing
7182 # the top level Makefile. Furthermore Automake
7183 # hasn't been asked to create the Makefile.in
7184 # that distribute the aux dir files.
7185 error ($where, 'Please make a full run of automake'
7186 . " so $fullfile gets distributed.");
7192 $trailer = "\n `automake --add-missing' can install `$file'"
7193 if -f "$libdir/$file";
7196 # If --force-missing was specified, and we have
7197 # actually found the file, then do nothing.
7199 if $found_it && $force_missing;
7201 # If we couldn' install the file, but it is a target in
7202 # the Makefile, don't print anything. This allows files
7203 # like README, AUTHORS, or THANKS to be generated.
7205 if !$suppress && rule $file;
7207 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
7213 # &require_file ($WHERE, $MYSTRICT, @FILES)
7214 # -----------------------------------------
7215 sub require_file ($$@)
7217 my ($where, $mystrict, @files) = @_;
7218 require_file_internal ($where, $mystrict, $relative_dir, @files);
7221 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7222 # -----------------------------------------------------------
7223 sub require_file_with_macro ($$$@)
7225 my ($cond, $macro, $mystrict, @files) = @_;
7226 $macro = rvar ($macro) unless ref $macro;
7227 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7230 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7231 # ----------------------------------------------------------------
7232 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7233 # must be in that directory. Otherwise expect it in the current directory.
7234 sub require_libsource_with_macro ($$$@)
7236 my ($cond, $macro, $mystrict, @files) = @_;
7237 $macro = rvar ($macro) unless ref $macro;
7238 if ($config_libobj_dir)
7240 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7241 $config_libobj_dir, @files);
7245 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7249 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7250 # ----------------------------------------------
7251 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7252 sub require_conf_file ($$@)
7254 my ($where, $mystrict, @files) = @_;
7255 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7259 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7260 # ----------------------------------------------------------------
7261 sub require_conf_file_with_macro ($$$@)
7263 my ($cond, $macro, $mystrict, @files) = @_;
7264 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7268 ################################################################
7270 # &require_build_directory ($DIRECTORY)
7271 # ------------------------------------
7272 # Emit rules to create $DIRECTORY if needed, and return
7273 # the file that any target requiring this directory should be made
7275 # We don't want to emit the rule twice, and want to reuse it
7276 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7277 sub require_build_directory ($)
7279 my $directory = shift;
7281 return $directory_map{$directory} if exists $directory_map{$directory};
7283 my $cdir = File::Spec->canonpath ($directory);
7285 if (exists $directory_map{$cdir})
7287 my $stamp = $directory_map{$cdir};
7288 $directory_map{$directory} = $stamp;
7292 my $dirstamp = "$cdir/\$(am__dirstamp)";
7294 $directory_map{$directory} = $dirstamp;
7295 $directory_map{$cdir} = $dirstamp;
7297 # Set a variable for the dirstamp basename.
7298 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7299 '$(am__leading_dot)dirstamp');
7301 # Directory must be removed by `make distclean'.
7302 $clean_files{$dirstamp} = DIST_CLEAN;
7304 $output_rules .= ("$dirstamp:\n"
7305 . "\t\@\$(MKDIR_P) $directory\n"
7306 . "\t\@: > $dirstamp\n");
7311 # &require_build_directory_maybe ($FILE)
7312 # --------------------------------------
7313 # If $FILE lies in a subdirectory, emit a rule to create this
7314 # directory and return the file that $FILE should be made
7315 # dependent upon. Otherwise, just return the empty string.
7316 sub require_build_directory_maybe ($)
7319 my $directory = dirname ($file);
7321 if ($directory ne '.')
7323 return require_build_directory ($directory);
7331 ################################################################
7333 # Push a list of files onto dist_common.
7334 sub push_dist_common
7336 prog_error "push_dist_common run after handle_dist"
7337 if $handle_dist_run;
7338 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7339 '', INTERNAL, VAR_PRETTY);
7343 ################################################################
7345 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7346 # ----------------------------------------------
7347 # Generate a Makefile.in given the name of the corresponding Makefile and
7348 # the name of the file output by config.status.
7349 sub generate_makefile ($$)
7351 my ($makefile_am, $makefile_in) = @_;
7353 # Reset all the Makefile.am related variables.
7354 initialize_per_input;
7356 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7357 # warnings for this file. So hold any warning issued before
7358 # we have processed AUTOMAKE_OPTIONS.
7359 buffer_messages ('warning');
7361 # Name of input file ("Makefile.am") and output file
7362 # ("Makefile.in"). These have no directory components.
7363 $am_file_name = basename ($makefile_am);
7364 $in_file_name = basename ($makefile_in);
7366 # $OUTPUT is encoded. If it contains a ":" then the first element
7367 # is the real output file, and all remaining elements are input
7368 # files. We don't scan or otherwise deal with these input files,
7369 # other than to mark them as dependencies. See
7370 # &scan_autoconf_files for details.
7371 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7373 $relative_dir = dirname ($makefile);
7374 $am_relative_dir = dirname ($makefile_am);
7375 $topsrcdir = backname ($relative_dir);
7377 read_main_am_file ($makefile_am);
7380 # Process buffered warnings.
7382 # Fatal error. Just return, so we can continue with next file.
7385 # Process buffered warnings.
7388 # There are a few install-related variables that you should not define.
7389 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7394 my $def = $v->def (TRUE);
7395 prog_error "$var not defined in condition TRUE"
7397 reject_var $var, "`$var' should not be defined"
7398 if $def->owner != VAR_AUTOMAKE;
7402 # Catch some obsolete variables.
7403 msg_var ('obsolete', 'INCLUDES',
7404 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
7405 if var ('INCLUDES');
7407 # Must do this after reading .am file.
7408 define_variable ('subdir', $relative_dir, INTERNAL);
7410 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7411 # recursive rules are enabled.
7412 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7413 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7415 # Check first, because we might modify some state.
7417 check_gnu_standards;
7418 check_gnits_standards;
7420 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7427 # These must be run after all the sources are scanned. They
7428 # use variables defined by &handle_libraries, &handle_ltlibraries,
7429 # or &handle_programs.
7434 # Variables used by distdir.am and tags.am.
7435 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7436 if (! option 'no-dist')
7438 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7451 handle_minor_options;
7452 # Must come after handle_programs so that %known_programs is up-to-date.
7455 # This must come after most other rules.
7459 do_check_merge_target;
7460 handle_all ($makefile);
7463 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7465 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7469 handle_clean ($makefile);
7470 handle_factored_dependencies;
7472 # Comes last, because all the above procedures may have
7473 # defined or overridden variables.
7474 $output_vars .= output_variables;
7478 my ($out_file) = $output_directory . '/' . $makefile_in;
7480 if ($exit_code != 0)
7482 verb "not writing $out_file because of earlier errors";
7486 if (! -d ($output_directory . '/' . $am_relative_dir))
7488 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
7491 # We make sure that `all:' is the first target.
7493 "$output_vars$output_all$output_header$output_rules$output_trailer";
7495 # Decide whether we must update the output file or not.
7496 # We have to update in the following situations.
7497 # * $force_generation is set.
7498 # * any of the output dependencies is younger than the output
7499 # * the contents of the output is different (this can happen
7500 # if the project has been populated with a file listed in
7501 # @common_files since the last run).
7502 # Output's dependencies are split in two sets:
7503 # * dependencies which are also configure dependencies
7504 # These do not change between each Makefile.am
7505 # * other dependencies, specific to the Makefile.am being processed
7506 # (such as the Makefile.am itself, or any Makefile fragment
7508 my $timestamp = mtime $out_file;
7509 if (! $force_generation
7510 && $configure_deps_greatest_timestamp < $timestamp
7511 && $output_deps_greatest_timestamp < $timestamp
7512 && $output eq contents ($out_file))
7514 verb "$out_file unchanged";
7515 # No need to update.
7522 or fatal "cannot remove $out_file: $!\n";
7525 my $gm_file = new Automake::XFile "> $out_file";
7526 verb "creating $out_file";
7527 print $gm_file $output;
7530 ################################################################
7535 ################################################################
7537 # Print usage information.
7540 print "Usage: $0 [OPTION] ... [Makefile]...
7542 Generate Makefile.in for configure from Makefile.am.
7545 --help print this help, then exit
7546 --version print version number, then exit
7547 -v, --verbose verbosely list files processed
7548 --no-force only update Makefile.in's that are out of date
7549 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
7551 Dependency tracking:
7552 -i, --ignore-deps disable dependency tracking code
7553 --include-deps enable dependency tracking code
7556 --cygnus assume program is part of Cygnus-style tree
7557 --foreign set strictness to foreign
7558 --gnits set strictness to gnits
7559 --gnu set strictness to gnu
7562 -a, --add-missing add missing standard files to package
7563 --libdir=DIR directory storing library files
7564 -c, --copy with -a, copy missing files (default is symlink)
7565 -f, --force-missing force update of standard files
7568 Automake::ChannelDefs::usage;
7572 foreach my $iter (sort ((@common_files, @common_sometimes)))
7574 push (@lcomm, $iter) unless $iter eq $last;
7579 print "\nFiles which are automatically distributed, if found:\n";
7580 format USAGE_FORMAT =
7581 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7582 $four[0], $four[1], $four[2], $four[3]
7584 $~ = "USAGE_FORMAT";
7587 my $rows = int(@lcomm / $cols);
7588 my $rest = @lcomm % $cols;
7599 for (my $y = 0; $y < $rows; $y++)
7601 @four = ("", "", "", "");
7602 for (my $x = 0; $x < $cols; $x++)
7604 last if $y + 1 == $rows && $x == $rest;
7606 my $idx = (($x > $rest)
7607 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
7611 $four[$x] = $lcomm[$idx];
7616 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
7618 # --help always returns 0 per GNU standards.
7625 # Print version information
7629 automake (GNU $PACKAGE) $VERSION
7630 Written by Tom Tromey <tromey\@redhat.com>
7631 and Alexandre Duret-Lutz <adl\@gnu.org>.
7633 Copyright 2006 Free Software Foundation, Inc.
7634 This is free software; see the source for copying conditions. There is NO
7635 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7637 # --version always returns 0 per GNU standards.
7641 ################################################################
7643 # Parse command line.
7644 sub parse_arguments ()
7647 set_strictness ('gnu');
7649 my $cli_where = new Automake::Location;
7652 'libdir=s' => \$libdir,
7653 'gnu' => sub { set_strictness ('gnu'); },
7654 'gnits' => sub { set_strictness ('gnits'); },
7655 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
7656 'foreign' => sub { set_strictness ('foreign'); },
7657 'include-deps' => sub { unset_global_option ('no-dependencies'); },
7658 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
7660 'no-force' => sub { $force_generation = 0; },
7661 'f|force-missing' => \$force_missing,
7662 'o|output-dir=s' => \$output_directory,
7663 'a|add-missing' => \$add_missing,
7664 'c|copy' => \$copy_missing,
7665 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
7666 'W|warnings=s' => \&parse_warnings,
7667 # These long options (--Werror and --Wno-error) for backward
7668 # compatibility. Use -Werror and -Wno-error today.
7669 'Werror' => sub { parse_warnings 'W', 'error'; },
7670 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
7673 Getopt::Long::config ("bundling", "pass_through");
7675 # See if --version or --help is used. We want to process these before
7676 # anything else because the GNU Coding Standards require us to
7677 # `exit 0' after processing these options, and we can't guarantee this
7678 # if we treat other options first. (Handling other options first
7679 # could produce error diagnostics, and in this condition it is
7680 # confusing if Automake does `exit 0'.)
7681 my %cli_options_1st_pass =
7683 'version' => \&version,
7685 # Recognize all other options (and their arguments) but do nothing.
7686 map { $_ => sub {} } (keys %cli_options)
7688 my @ARGV_backup = @ARGV;
7689 Getopt::Long::GetOptions %cli_options_1st_pass
7691 @ARGV = @ARGV_backup;
7693 # Now *really* process the options. This time we know that --help
7694 # and --version are not present, but we specify them nonetheless so
7695 # that ambiguous abbreviation are diagnosed.
7696 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
7699 if (defined $output_directory)
7701 msg 'obsolete', "`--output-dir' is deprecated\n";
7705 # In the next release we'll remove this entirely.
7706 $output_directory = '.';
7709 return unless @ARGV;
7711 if ($ARGV[0] =~ /^-./)
7714 for my $k (keys %cli_options)
7716 if ($k =~ /(.*)=s$/)
7718 map { $argopts{(length ($_) == 1)
7719 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
7722 if ($ARGV[0] eq '--')
7726 elsif (exists $argopts{$ARGV[0]})
7728 fatal ("option `$ARGV[0]' requires an argument\n"
7729 . "Try `$0 --help' for more information.");
7733 fatal ("unrecognized option `$ARGV[0]'.\n"
7734 . "Try `$0 --help' for more information.");
7739 foreach my $arg (@ARGV)
7741 fatal ("empty argument\nTry `$0 --help' for more information.")
7744 # Handle $local:$input syntax.
7745 my ($local, @rest) = split (/:/, $arg);
7746 @rest = ("$local.in",) unless @rest;
7747 my $input = locate_am @rest;
7750 push @input_files, $input;
7751 $output_files{$input} = join (':', ($local, @rest));
7755 error "no Automake input file found for `$arg'";
7759 fatal "no input file found among supplied arguments"
7760 if $errspec && ! @input_files;
7763 ################################################################
7765 # Parse the WARNINGS environment variable.
7768 # Parse command line.
7771 $configure_ac = require_configure_ac;
7773 # Do configure.ac scan only once.
7774 scan_autoconf_files;
7779 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
7780 if -f 'Makefile.am';
7781 fatal ("no `Makefile.am' found for any configure output$msg");
7784 # Now do all the work on each file.
7785 foreach my $file (@input_files)
7787 ($am_file = $file) =~ s/\.in$//;
7788 if (! -f ($am_file . '.am'))
7790 error "`$am_file.am' does not exist";
7794 # Any warning setting now local to this Makefile.am.
7797 generate_makefile ($am_file . '.am', $file);
7799 # Back out any warning setting.
7807 ### Setup "GNU" style for perl-mode and cperl-mode.
7809 ## perl-indent-level: 2
7810 ## perl-continued-statement-offset: 2
7811 ## perl-continued-brace-offset: 0
7812 ## perl-brace-offset: 0
7813 ## perl-brace-imaginary-offset: 0
7814 ## perl-label-offset: -2
7815 ## cperl-indent-level: 2
7816 ## cperl-brace-offset: 0
7817 ## cperl-continued-brace-offset: 0
7818 ## cperl-label-offset: -2
7819 ## cperl-extra-newline-before-brace: t
7820 ## cperl-merge-trailing-else: nil
7821 ## cperl-continued-statement-offset: 2