5 eval 'exec @PERL@ -S $0 ${1+"$@"}'
8 # automake - create Makefile.in from Makefile.am
9 # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
10 # 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., 59 Temple Place - Suite 330, Boston, MA
27 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
28 # Perl reimplementation by Tom Tromey <tromey@cygnus.com>.
34 my $prefix = "@prefix@";
35 my $perllibdir = $ENV{'perllibdir'} || "@datadir@/@PACKAGE@";
36 unshift @INC, "$perllibdir";
40 struct (# Short name of the language (c, f77...).
42 # Nice name of the language (C, Fortran 77...).
45 # List of configure variables which must be defined.
49 # `pure' is `1' or `'. A `pure' language is one where, if
50 # all the files in a directory are of that language, then we
51 # do not require the C compiler or any code to call it.
56 # Name of the compiling variable (COMPILE).
58 # Content of the compiling variable.
60 # Flag to require compilation without linking (-c).
61 'compile_flag' => "\$",
64 # Should the flag be defined as a configure variable.
65 # Defaults to true. FIXME: this should go away once
66 # we move to autoconf tracing.
67 'define_flag' => "\$",
69 # The file to use when generating rules for this language.
70 # The default is 'depend2'.
73 # Name of the linking variable (LINK).
75 # Content of the linking variable.
78 # Name of the linker variable (LD).
80 # Content of the linker variable ($(CC)).
83 # Flag to specify the output file (-o).
84 'output_flag' => "\$",
87 # This is a subroutine which is called whenever we finally
88 # determine the context in which a source file will be
90 '_target_hook' => "\$");
96 if (defined $self->_finish)
102 sub target_hook ($$$$)
105 if (defined $self->_target_hook)
107 &{$self->_target_hook} (@_);
114 use strict 'vars', 'subs';
118 my $me = basename ($0);
125 # Parameters set by configure. Not to be changed. NOTE: assign
126 # VERSION as string so that eg version 0.30 will print correctly.
127 my $VERSION = "@VERSION@";
128 my $PACKAGE = "@PACKAGE@";
129 my $prefix = "@prefix@";
130 my $libdir = "@datadir@/@PACKAGE@";
133 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
134 my $WHITE_PATTERN = '^\s*$';
135 my $COMMENT_PATTERN = '^#';
136 my $TARGET_PATTERN='[$a-zA-Z_.][-.a-zA-Z0-9_(){}/$+]*';
137 # A rule has three parts: a list of targets, a list of dependencies,
138 # and optionally actions.
140 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
142 my $SUFFIX_RULE_PATTERN = '^\.([a-zA-Z0-9+]+)\.([a-zA-Z0-9+]+)$';
143 # Only recognize leading spaces, not leading tabs. If we recognize
144 # leading tabs here then we need to make the reader smarter, because
145 # otherwise it will think rules like `foo=bar; \' are errors.
146 my $MACRO_PATTERN = '^[A-Za-z0-9_@]+$';
147 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)$';
148 # This pattern recognizes a Gnits version id and sets $1 if the
149 # release is an alpha release. We also allow a suffix which can be
150 # used to extend the version number with a "fork" identifier.
151 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
152 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?$';
153 my $ELSE_PATTERN = '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?$';
154 my $ENDIF_PATTERN = '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?$';
155 my $PATH_PATTERN='(\w|[/.-])+';
156 # This will pass through anything not of the prescribed form.
157 my $INCLUDE_PATTERN = ('^include\s+'
158 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
159 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
160 . '|([^/\$]' . $PATH_PATTERN. '))\s*(#.*)?$');
162 # Some regular expressions. One reason to put them here is that it
163 # makes indentation work better in Emacs.
164 my $AC_CONFIG_AUX_DIR_PATTERN = 'AC_CONFIG_AUX_DIR\(([^)]+)\)';
165 my $AM_INIT_AUTOMAKE_PATTERN = 'AM_INIT_AUTOMAKE\([^,]*,([^,)]+)[,)]';
166 my $AM_PACKAGE_VERSION_PATTERN = '^\s*\[?([^]\s]+)\]?\s*$';
167 # Note that there is no AC_PATH_TOOL. But we don't really care.
168 my $AC_CHECK_PATTERN = 'AC_(CHECK|PATH)_(PROG|PROGS|TOOL)\(\[?(\w+)';
169 my $AM_MISSING_PATTERN = 'AM_MISSING_PROG\(\[?(\w+)';
170 # Just check for alphanumeric in AC_SUBST. If you do AC_SUBST(5),
172 my $AC_SUBST_PATTERN = 'AC_SUBST\(\[?(\w+)';
173 my $AM_CONDITIONAL_PATTERN = 'AM_CONDITIONAL\(\[?(\w+)';
174 # Match `-d' as a command-line argument in a string.
175 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
177 # Constants to define the "strictness" level.
182 # Values for AC_CANONICAL_*
183 my $AC_CANONICAL_HOST = 1;
184 my $AC_CANONICAL_SYSTEM = 2;
186 # Values indicating when something should be cleaned. Right now we
187 # only need to handle `mostly'- and `dist'-clean; add more as
189 my $MOSTLY_CLEAN = 0;
192 # Files installed by libtoolize.
193 my @libtoolize_files = ('ltmain.sh', 'config.guess', 'config.sub');
194 # ltconfig appears here for compatibility with old versions of libtool.
195 my @libtoolize_sometimes = ('ltconfig', 'ltcf-c.sh', 'ltcf-cxx.sh',
198 # Commonly found files we look for and automatically include in
202 'README', 'THANKS', 'TODO', 'NEWS', 'COPYING', 'COPYING.LIB',
203 'INSTALL', 'ABOUT-NLS', 'ChangeLog', 'configure.ac',
204 'configure.in', 'configure', 'config.guess', 'config.sub',
205 'AUTHORS', 'BACKLOG', 'ABOUT-GNU', 'libversion.in',
206 'mdate-sh', 'mkinstalldirs', 'install-sh', 'texinfo.tex',
207 'ansi2knr.c', 'ansi2knr.1', 'elisp-comp',
208 # ltconfig appears here for compatibility with old versions
210 'ylwrap', 'acinclude.m4', @libtoolize_files, @libtoolize_sometimes,
211 'missing', 'depcomp', 'compile', 'py-compile'
214 # Commonly used files we auto-include, but only sometimes.
215 my @common_sometimes =
217 'aclocal.m4', 'acconfig.h', 'config.h.top',
218 'config.h.bot', 'stamp-h.in', 'stamp-vti'
221 # Copyright on generated Makefile.ins.
222 my $gen_copyright = "\
223 # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
224 # Free Software Foundation, Inc.
225 # This Makefile.in is free software; the Free Software Foundation
226 # gives unlimited permission to copy and/or distribute it,
227 # with or without modifications, as long as this notice is preserved.
229 # This program is distributed in the hope that it will be useful,
230 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
231 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
232 # PARTICULAR PURPOSE.
235 # These constants are returned by lang_*_rewrite functions.
236 # LANG_SUBDIR means that the resulting object file should be in a
237 # subdir if the source file is. In this case the file name cannot
238 # have `..' components.
240 my $LANG_PROCESS = 1;
243 # Directories installed during 'install-exec' phase.
262 # Map from obsolete macros to hints for new macros.
263 # If you change this, change the corresponding list in aclocal.in.
264 # FIXME: should just put this into a single file.
265 my %obsolete_macros =
267 'AC_FEATURE_CTYPE' => "use `AC_HEADER_STDC'",
268 'AC_FEATURE_ERRNO' => "add `strerror' to `AC_REPLACE_FUNCS(...)'",
269 'AC_FEATURE_EXIT' => '',
270 'AC_SYSTEM_HEADER' => '',
272 # Note that we do not handle this one, because it is still run
273 # from AM_CONFIG_HEADER. So we deal with it specially in
274 # &scan_autoconf_files.
275 # 'AC_CONFIG_HEADER' => "use `AM_CONFIG_HEADER'",
277 'fp_C_PROTOTYPES' => "use `AM_C_PROTOTYPES'",
278 'fp_PROG_CC_STDC' => "use `AM_PROG_CC_STDC'",
279 'fp_PROG_INSTALL' => "use `AC_PROG_INSTALL'",
280 'fp_WITH_DMALLOC' => "use `AM_WITH_DMALLOC'",
281 'fp_WITH_REGEX' => "use `AM_WITH_REGEX'",
282 'gm_PROG_LIBTOOL' => "use `AM_PROG_LIBTOOL'",
283 'jm_MAINTAINER_MODE' => "use `AM_MAINTAINER_MODE'",
284 'md_TYPE_PTRDIFF_T' => "use `AM_TYPE_PTRDIFF_T'",
285 'ud_PATH_LISPDIR' => "use `AM_PATH_LISPDIR'",
286 'ud_GNU_GETTEXT' => "use `AM_GNU_GETTEXT'",
288 # Now part of autoconf proper, under a different name.
289 'AM_FUNC_FNMATCH' => "use `AC_FUNC_FNMATCH'",
290 'fp_FUNC_FNMATCH' => "use `AC_FUNC_FNMATCH'",
291 'AM_SANITY_CHECK_CC' => "automatically done by `AC_PROG_CC'",
292 'AM_PROG_INSTALL' => "use `AC_PROG_INSTALL'",
293 'AM_EXEEXT' => "use `AC_EXEEXT'",
294 'AM_CYGWIN32' => "use `AC_CYGWIN'",
295 'AM_MINGW32' => "use `AC_MINGW32'",
296 'AM_FUNC_MKTIME' => "use `AC_FUNC_MKTIME'",
298 # These aren't quite obsolete.
302 # Regexp to match the above macros.
303 my $obsolete_rx = '\b(' . join ('|', keys %obsolete_macros) . ')\b';
307 ## ---------------------------------- ##
308 ## Variables related to the options. ##
309 ## ---------------------------------- ##
311 # TRUE if we should always generate Makefile.in.
312 my $force_generation = 1;
314 # Strictness level as set on command line.
315 my $default_strictness = $GNU;
317 # Name of strictness level, as set on command line.
318 my $default_strictness_name = 'gnu';
320 # This is TRUE if automatic dependency generation code should be
321 # included in generated Makefile.in.
322 my $cmdline_use_dependencies = 1;
324 # TRUE if in verbose mode.
327 # This holds our (eventual) exit status. We don't actually exit until
328 # we have processed all input files.
331 # From the Perl manual.
332 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
334 # TRUE if missing standard files should be installed.
337 # TRUE if we should copy missing files; otherwise symlink if possible.
338 my $copy_missing = 0;
340 # TRUE if we should always update files that we know about.
341 my $force_missing = 0;
344 ## ---------------------------------------- ##
345 ## Variables filled during files scanning. ##
346 ## ---------------------------------------- ##
348 # Name of the top autoconf input: `configure.ac' or `configure.in'.
349 my $configure_ac = '';
351 # Files found by scanning configure.ac for LIBOBJS.
354 # True if AM_C_PROTOTYPES appears in configure.ac.
355 my $am_c_prototypes = 0;
357 # Names used in AC_CONFIG_HEADER call. @config_fullnames holds the
358 # name which appears in AC_CONFIG_HEADER, colon and all.
359 # @config_names holds the file names. @config_headers holds the '.in'
360 # files. Ordinarily these are similar, but they can be different if
361 # the weird "NAME:FILE" syntax is used.
362 my @config_fullnames = ();
363 my @config_names = ();
364 my @config_headers = ();
365 # Line number at which AC_CONFIG_HEADER appears in configure.ac.
366 my $config_header_line = 0;
368 # Directory where output files go. Actually, output files are
369 # relative to this directory.
370 my $output_directory = '.';
372 # List of Makefile.am's to process, and their corresponding outputs.
373 my @input_files = ();
374 my %output_files = ();
376 # Complete list of Makefile.am's that exist.
377 my @configure_input_files = ();
379 # List of files in AC_OUTPUT without Makefile.am, and their outputs.
380 my @other_input_files = ();
381 # Line number at which AC_OUTPUT seen.
382 my $ac_output_line = 0;
384 # List of directories to search for configure-required files. This
385 # can be set by AC_CONFIG_AUX_DIR.
386 my @config_aux_path = ('.', '..', '../..');
387 my $config_aux_dir = '';
388 my $config_aux_dir_set_in_configure_in = 0;
390 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
391 my $seen_gettext = 0;
392 # Line number at which AM_GNU_GETTEXT seen.
393 my $ac_gettext_line = 0;
395 # Whether ALL_LINGUAS has been seen.
396 my $seen_linguas = '';
398 my $all_linguas = '';
399 # Line number at which it appears.
400 my $all_linguas_line = 0;
402 # TRUE if AC_DECL_YYTEXT was seen.
403 my $seen_decl_yytext = 0;
405 # TRUE if we've seen AC_CANONICAL_(HOST|SYSTEM). The presence of
406 # AC_CHECK_TOOL also sets this.
407 my $seen_canonical = 0;
409 # TRUE if we've seen AC_PROG_LIBTOOL.
410 my $seen_libtool = 0;
411 my $libtool_line = 0;
413 # TRUE if we've seen AM_MAINTAINER_MODE.
414 my $seen_maint_mode = 0;
416 # Actual version we've seen.
417 my $package_version = '';
419 # Line number where we saw version definition.
420 my $package_version_line = 0;
422 # TRUE if we've seen AM_PATH_LISPDIR.
423 my $seen_lispdir = 0;
425 # TRUE if we've seen AM_PATH_PYTHON.
426 my $seen_pythondir = 0;
428 # TRUE if we've seen AC_EXEEXT.
431 # TRUE if we've seen AC_OBJEXT.
434 # TRUE if we've seen AC_ENABLE_MULTILIB.
435 my $seen_multilib = 0;
437 # TRUE if we've seen AM_PROG_CC_C_O
440 # TRUE if we've seen AM_INIT_AUTOMAKE.
441 my $seen_init_automake = 0;
443 # Hash table of discovered configure substitutions. Keys are names,
444 # values are `FILE:LINE' strings which are used by error message
446 my %configure_vars = ();
448 # This is used to keep track of which variable definitions we are
449 # scanning. It is only used in certain limited ways, but it has to be
450 # global. It is declared just for documentation purposes.
451 my %vars_scanned = ();
453 # TRUE if --cygnus seen.
456 # Hash table of AM_CONDITIONAL variables seen in configure.
457 my %configure_cond = ();
459 # This maps extensions onto language names.
460 my %extension_map = ();
462 # List of the DIST_COMMON files we discovered while reading
464 my $configure_dist_common = '';
466 # This maps languages names onto objects.
469 # List of targets we must always output.
470 # FIXME: Complete, and remove falsely required targets.
471 my %required_targets =
482 # FIXME: Not required, temporary hacks.
483 # Well, actually they are sort of required: the -recursive
484 # targets will run them anyway...
487 'install-data-am' => 1,
488 'install-exec-am' => 1,
489 'installcheck-am' => 1,
497 ################################################################
499 ## ------------------------------------------ ##
500 ## Variables reset by &initialize_per_input. ##
501 ## ------------------------------------------ ##
503 # Basename and relative dir of the input file.
507 # Same but wrt Makefile.in.
511 # These two variables are used when generating each Makefile.in.
512 # They hold the Makefile.in until it is ready to be printed.
519 # Suffixes found during a run.
522 # Handling the variables.
525 # - $var_value{$VAR}{$COND} is its value associated to $COND,
526 # - $var_line{$VAR} is where it has been defined,
527 # - $var_comment{$VAR} are the comments associated to it.
528 # - $var_type{$VAR} is how it has been defined (`', `+', or `:'),
529 # - $var_is_am{$VAR} is true if the variable is owned by Automake.
536 # This holds a 1 if a particular variable was examined.
539 # This holds the names which are targets. These also appear in
543 # Same as %VAR_VALUE, but for targets.
544 my %target_conditional;
546 # This is the conditional stack.
549 # This holds the set of included files.
552 # This holds a list of directories which we must create at `dist'
553 # time. This is used in some strange scenarios involving weird
554 # AC_OUTPUT commands.
557 # List of dependencies for the obvious targets.
562 # Holds the dependencies of targets which dependencies are factored.
563 # Typically, `.PHONY' will appear in plenty of *.am files, but must
564 # be output once. Arguably all pure dependencies could be subject
565 # to this factorization, but it is not unpleasant to have paragraphs
566 # in Makefile: keeping related stuff altogether.
569 # Holds the factored actions. Tied to %DEPENDENCIES, i.e., filled
570 # only when keys exists in %DEPENDENCIES.
573 # A list of files deleted by `maintainer-clean'.
574 my @maintainer_clean_files;
576 # Keys in this hash table are object files or other files in
577 # subdirectories which need to be removed. This only holds files
578 # which are created by compilations. The value in the hash indicates
579 # when the file should be removed.
580 my %compile_clean_files;
582 # Value of `$(SOURCES)', used by tags.am.
584 # Sources which go in the distribution.
587 # This hash maps object file names onto their corresponding source
588 # file names. This is used to ensure that each object is created
589 # by a single source file.
592 # This keeps track of the directories for which we've already
593 # created `.dirstamp' code.
603 # Options from AUTOMAKE_OPTIONS.
606 # Whether or not dependencies are handled. Can be further changed
608 my $use_dependencies;
610 # This is a list of all targets to run during "make dist".
613 # Keys in this hash are the basenames of files which must depend
617 # This maps the source extension of a suffix rule to its
618 # corresponding output extension.
621 # This is the name of the redirect `all' target to use.
624 # This keeps track of which extensions we've seen (that we care
628 # This is random scratch space for the language finish functions.
629 # Don't randomly overwrite it; examine other uses of keys first.
630 my %language_scratch;
632 # We keep track of which objects need special (per-executable)
633 # handling on a per-language basis.
634 my %lang_specific_files;
636 # This is set when `handle_dist' has finished. Once this happens,
637 # we should no longer push on dist_common.
640 # True if we need `LINK' defined. This is a hack.
643 # This is the list of such variables to output.
644 # FIXME: Might be useless actually.
647 # Was get_object_extension run?
648 # FIXME: This is a hack. a better switch should be found.
649 my $get_object_extension_was_run;
652 ## --------------------------------- ##
653 ## Forward subroutine declarations. ##
654 ## --------------------------------- ##
655 sub register_language (%);
656 sub file_contents_internal ($$%);
659 # &initialize_per_input ()
660 # ------------------------
661 # (Re)-Initialize per-Makefile.am variables.
662 sub initialize_per_input ()
665 $am_relative_dir = '';
672 $output_trailer = '';
688 %target_conditional = ();
696 $am_relative_dir = '';
712 # Installing/uninstalling.
713 'install-data-am' => [],
714 'install-exec-am' => [],
715 'uninstall-am' => [],
718 'uninstall-man' => [],
720 'install-info' => [],
721 'install-info-am' => [],
722 'uninstall-info' => [],
724 'installcheck-am' => [],
728 'mostlyclean-am' => [],
729 'maintainer-clean-am' => [],
730 'distclean-am' => [],
733 'maintainer-clean' => [],
744 @maintainer_clean_files = ();
755 $strictness = $default_strictness;
756 $strictness_name = $default_strictness_name;
760 $use_dependencies = $cmdline_use_dependencies;
770 %extension_seen = ();
772 %language_scratch = ();
774 %lang_specific_files = ();
776 $handle_dist_run = 0;
782 $get_object_extension_was_run = 0;
784 %compile_clean_files = ();
788 ################################################################
790 # Initialize our list of languages that are internally supported.
793 register_language ('name' => 'c',
795 'config_vars' => ['CC'],
799 'compiler' => 'COMPILE',
800 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
804 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
805 'compile_flag' => '-c',
806 'extensions' => ['c'],
807 '_finish' => \&lang_c_finish);
810 register_language ('name' => 'cxx',
812 'config_vars' => ['CXX'],
813 'linker' => 'CXXLINK',
814 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
816 'flags' => 'CXXFLAGS',
817 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
818 'compiler' => 'CXXCOMPILE',
819 'compile_flag' => '-c',
820 'output_flag' => '-o',
824 'extensions' => ['c++', 'cc', 'cpp', 'cxx', 'C']);
827 register_language ('name' => 'objc',
828 'Name' => 'Objective C',
829 'config_vars' => ['OBJC'],
830 'linker' => 'OBJCLINK',,
831 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
833 'flags' => 'OBJCFLAGS',
834 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
835 'compiler' => 'OBJCCOMPILE',
836 'compile_flag' => '-c',
837 'output_flag' => '-o',
841 'extensions' => ['m']);
844 register_language ('name' => 'header',
846 'extensions' => ['h', 'H', 'hxx', 'h++', 'hh', 'hpp', 'inc'],
848 '_finish' => sub { });
851 register_language ('name' => 'yacc',
853 'config_vars' => ['YACC'],
856 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
857 'compiler' => 'YACCCOMPILE',
858 'extensions' => ['y'],
859 'rule_file' => 'yacc',
860 '_finish' => \&lang_yacc_finish,
861 '_target_hook' => \&lang_yacc_target_hook);
862 register_language ('name' => 'yaccxx',
863 'Name' => 'Yacc (C++)',
864 'config_vars' => ['YACC'],
865 'rule_file' => 'yacc',
868 'compiler' => 'YACCCOMPILE',
869 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
870 'extensions' => ['y++', 'yy', 'yxx', 'ypp'],
871 '_finish' => \&lang_yacc_finish,
872 '_target_hook' => \&lang_yacc_target_hook);
875 register_language ('name' => 'lex',
877 'config_vars' => ['LEX'],
878 'rule_file' => 'lex',
881 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
882 'compiler' => 'LEXCOMPILE',
883 'extensions' => ['l'],
884 '_finish' => \&lang_lex_finish);
885 register_language ('name' => 'lexxx',
886 'Name' => 'Lex (C++)',
887 'config_vars' => ['LEX'],
888 'rule_file' => 'lex',
891 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
892 'compiler' => 'LEXCOMPILE',
893 'extensions' => ['l++', 'll', 'lxx', 'lpp'],
894 '_finish' => \&lang_lex_finish);
897 register_language ('name' => 'asm',
898 'Name' => 'Assembler',
899 'config_vars' => ['AS', 'ASFLAGS'],
901 'flags' => 'ASFLAGS',
902 # Users can set AM_ASFLAGS to includes DEFS, INCLUDES,
903 # or anything else required. They can also set AS.
904 'compile' => '$(AS) $(AM_ASFLAGS) $(ASFLAGS)',
905 'compiler' => 'ASCOMPILE',
906 'compile_flag' => '-c',
907 'extensions' => ['s', 'S'],
909 # With assembly we still use the C linker.
910 '_finish' => \&lang_c_finish);
913 register_language ('name' => 'f77',
914 'Name' => 'Fortran 77',
915 'linker' => 'F77LINK',
916 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
918 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
919 'compiler' => 'F77COMPILE',
920 'compile_flag' => '-c',
921 'output_flag' => '-o',
925 'extensions' => ['f', 'for', 'f90']);
927 # Preprocessed Fortran 77
929 # The current support for preprocessing Fortran 77 just involves
930 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
931 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
932 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
933 # for `make' Version 3.76 Beta' (specifically, from info file
934 # `(make)Catalogue of Rules').
936 # A better approach would be to write an Autoconf test
937 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
938 # Fortran 77 compilers know how to do preprocessing. The Autoconf
939 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
940 # preprocessing capabilities, and then fall back on cpp (if cpp were
942 register_language ('name' => 'ppf77',
943 'Name' => 'Preprocessed Fortran 77',
944 'config_vars' => ['F77'],
945 'linker' => 'F77LINK',
946 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
950 'compiler' => 'PPF77COMPILE',
951 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
952 'compile_flag' => '-c',
953 'output_flag' => '-o',
955 'extensions' => ['F']);
958 register_language ('name' => 'ratfor',
960 'config_vars' => ['F77'],
961 'linker' => 'F77LINK',
962 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
967 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
968 'compiler' => 'RCOMPILE',
969 'compile_flag' => '-c',
970 'output_flag' => '-o',
972 'extensions' => ['r']);
975 register_language ('name' => 'java',
977 'config_vars' => ['GCJ'],
978 'linker' => 'GCJLINK',
979 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
981 'flags' => 'GCJFLAGS',
982 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
983 'compiler' => 'GCJCOMPILE',
984 'compile_flag' => '-c',
985 'output_flag' => '-o',
989 'extensions' => ['java', 'class', 'zip', 'jar']);
991 ################################################################
993 # Parse command line.
996 # Do configure.ac scan only once.
997 &scan_autoconf_files;
999 die "$me: no `Makefile.am' found or specified\n"
1002 # Now do all the work on each file.
1003 # This guy must be local otherwise it's private to the loop.
1004 use vars '$am_file';
1006 foreach $am_file (@input_files)
1008 if (! -f ($am_file . '.am'))
1010 &am_error ("`" . $am_file . ".am' does not exist");
1014 &generate_makefile ($output_files{$am_file}, $am_file);
1020 # FIXME: This should be `my'ed next to its subs.
1021 use vars '%require_file_found';
1023 ################################################################
1025 # prog_error (@PRINT-ME)
1026 # ----------------------
1027 # Signal a programming error, display PRINT-ME, and exit 1.
1030 print STDERR "$me: programming error: @_\n";
1038 # Return LIST with no duplicates.
1043 foreach my $item (@_)
1045 if (! defined $seen{$item})
1056 # Return a configure-style substitution using the indicated text.
1057 # We do this to avoid having the substitutions directly in automake.in;
1058 # when we do that they are sometimes removed and this causes confusion
1063 return '@' . $text . '@';
1066 ################################################################
1070 # &backname ($REL-DIR)
1071 # --------------------
1072 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1073 # For instance `src/foo' => `../..'.
1074 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1079 foreach (split (/\//, $file))
1081 next if $_ eq '.' || $_ eq '';
1091 return join ('/', @res) || '.';
1094 ################################################################
1096 # Parse command line.
1097 sub parse_arguments ()
1100 &set_strictness ('gnu');
1103 Getopt::Long::config ("bundling");
1104 Getopt::Long::GetOptions
1106 'version' => \&version,
1108 'libdir:s' => \$libdir,
1109 'gnu' => sub { &set_strictness ('gnu'); },
1110 'gnits' => sub { &set_strictness ('gnits'); },
1111 'cygnus' => \$cygnus_mode,
1112 'foreign' => sub { &set_strictness ('foreign'); },
1113 'include-deps' => sub { $cmdline_use_dependencies = 1; },
1114 'i|ignore-deps' => sub { $cmdline_use_dependencies = 0; },
1115 'no-force' => sub { $force_generation = 0; },
1116 'f|force-missing'=> \$force_missing,
1117 'o|output-dir:s' => \$output_directory,
1118 'a|add-missing' => \$add_missing,
1119 'c|copy' => \$copy_missing,
1120 'v|verbose' => \$verbose,
1121 'Werror' => sub { $SIG{"__WARN__"} = sub { die $_[0] } },
1122 'Wno-error' => sub { $SIG{"__WARN__"} = 'DEFAULT' }
1126 foreach my $arg (@ARGV)
1128 # Handle $local:$input syntax. Note that we only examine the
1129 # first ":" file to see if it is automake input; the rest are
1130 # just taken verbatim. We still keep all the files around for
1131 # dependency checking, however.
1132 my ($local, $input, @rest) = split (/:/, $arg);
1139 # Strip .in; later on .am is tacked on. That is how the
1140 # automake input file is found. Maybe not the best way, but
1141 # it is easy to explain.
1143 or die "$me: invalid input file name `$arg'\n.";
1145 push (@input_files, $input);
1146 $output_files{$input} = join (':', ($local, @rest));
1149 # Take global strictness from whatever we currently have set.
1150 $default_strictness = $strictness;
1151 $default_strictness_name = $strictness_name;
1154 ################################################################
1156 # Generate a Makefile.in given the name of the corresponding Makefile and
1157 # the name of the file output by config.status.
1158 sub generate_makefile
1160 my ($output, $makefile) = @_;
1162 # Reset all the Makefile.am related variables.
1163 &initialize_per_input;
1165 # Name of input file ("Makefile.am") and output file
1166 # ("Makefile.in"). These have no directory components.
1167 $am_file_name = basename ($makefile) . '.am';
1168 $in_file_name = basename ($makefile) . '.in';
1170 # $OUTPUT is encoded. If it contains a ":" then the first element
1171 # is the real output file, and all remaining elements are input
1172 # files. We don't scan or otherwise deal with these input file,
1173 # other than to mark them as dependencies. See
1174 # &scan_autoconf_files for details.
1175 my (@secondary_inputs);
1176 ($output, @secondary_inputs) = split (/:/, $output);
1178 $relative_dir = dirname ($output);
1179 $am_relative_dir = dirname ($makefile);
1181 &read_main_am_file ($makefile . '.am');
1182 if (&handle_options)
1184 # Fatal error. Just return, so we can continue with next file.
1188 # There are a few install-related variables that you should not define.
1189 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
1191 if (&variable_defined ($var) && !$var_is_am{$var})
1193 &am_line_error ($var, "`$var' should not be defined");
1199 # At the toplevel directory, we might need config.guess, config.sub
1200 # or libtool scripts (ltconfig and ltmain.sh).
1201 if ($relative_dir eq '.')
1203 # AC_CANONICAL_HOST and AC_CANONICAL_SYSTEM need config.guess and
1205 &require_config_file ($FOREIGN, 'config.guess', 'config.sub')
1209 # We still need Makefile.in here, because sometimes the `dist'
1210 # target doesn't re-run automake.
1211 if ($am_relative_dir eq $relative_dir)
1213 # Only distribute the files if they are in the same subdir as
1214 # the generated makefile.
1215 &push_dist_common ($in_file_name, $am_file_name);
1218 push (@sources, '$(SOURCES)')
1219 if &variable_defined ('SOURCES');
1221 # If OBJEXT/EXEEXT were not set in configure.in, do it, it
1222 # simplifies our task, and anyway starting with Autoconf 2.50, it
1223 # will always be defined, and this code will be dead.
1224 $output_vars .= "EXEEXT =\n"
1225 unless $seen_exeext;
1226 $output_vars .= "OBJEXT = o\n"
1227 unless $seen_objext;
1229 # Must do this after reading .am file. See read_main_am_file to
1230 # understand weird tricks we play there with variables.
1231 &define_variable ('subdir', $relative_dir);
1233 # Check first, because we might modify some state.
1235 &check_gnu_standards;
1236 &check_gnits_standards;
1238 &handle_configure ($output, $makefile, @secondary_inputs);
1241 &handle_ltlibraries;
1245 # This must run first so that the ANSI2KNR definition is generated
1246 # before it is used by the _.c rules. We have to do this because
1247 # a variable which is used in a dependency must be defined before
1248 # the target, or else make won't properly see it.
1250 # This must be run after all the sources are scanned.
1253 # Re-init SOURCES. FIXME: other code shouldn't depend on this
1254 # (but currently does).
1255 macro_define ('SOURCES', 1, '', 'TRUE',
1256 join (' ', @sources), 'internal');
1257 &define_pretty_variable ('DIST_SOURCES', '', @dist_sources);
1269 &handle_minor_options;
1272 # This must come after most other rules.
1273 &handle_dist ($makefile);
1276 &do_check_merge_target;
1277 &handle_all ($output);
1280 if (&variable_defined('lib_LTLIBRARIES') &&
1281 &variable_defined('bin_PROGRAMS'))
1283 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
1286 &handle_installdirs;
1288 &handle_factored_dependencies;
1292 if (! -d ($output_directory . '/' . $am_relative_dir))
1294 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
1297 my ($out_file) = $output_directory . '/' . $makefile . ".in";
1298 if (! $force_generation && -e $out_file)
1300 my ($am_time) = (stat ($makefile . '.am'))[9];
1301 my ($in_time) = (stat ($out_file))[9];
1302 # FIXME: should cache these times.
1303 my ($conf_time) = (stat ($configure_ac))[9];
1304 # FIXME: how to do unsigned comparison?
1305 if ($am_time < $in_time || $am_time < $conf_time)
1307 # No need to update.
1310 if (-f 'aclocal.m4')
1312 my ($acl_time) = (stat _)[9];
1313 return if ($am_time < $acl_time);
1317 my $gm_file = new IO::File "> $out_file";
1320 warn "$me: ${am_file}.in: cannot write: $!\n";
1324 print "$me: creating ", $makefile, ".in\n" if $verbose;
1326 # In case we're running under MSWindows, don't write with CRLF
1327 # (as it causes problems for the dependency-file extraction in
1328 # AM_OUTPUT_DEPENDENCY_COMMANDS).
1331 print $gm_file $output_vars;
1332 # We make sure that `all:' is the first target.
1333 print $gm_file $output_all;
1334 print $gm_file $output_header;
1335 print $gm_file $output_rules;
1336 print $gm_file $output_trailer;
1338 if (! $gm_file->close)
1340 warn "$me: $am_file.in: cannot close: $!\n";
1346 ################################################################
1348 # A helper which handles the logic of requiring a version number in
1349 # AUTOMAKE_OPTIONS. Return 1 on error, 0 on success.
1350 sub version_check ($$$$)
1352 my ($rmajor, $rminor, $ralpha, $rfork) = ($1, $2, $3, $4);
1354 &prog_error ("version is incorrect: $VERSION")
1355 if $VERSION !~ /(\d+)\.(\d+)([a-z]?)-?([A-Za-z0-9]+)?/;
1357 my ($tmajor, $tminor, $talpha, $tfork) = ($1, $2, $3, $4);
1362 my $rminorminor = 0;
1363 my $tminorminor = 0;
1365 # Some versions were labelled like `1.4-p3a'. This is the same as
1366 # an alpha release labelled `1.4.3a'. However, a version like
1367 # `1.4g' is the same as `1.4.99g'. Yes, this sucks. Moral:
1368 # always listen to the users.
1369 if ($rfork =~ /p([0-9]+)([a-z]?)/)
1372 # `1.4a-p3b' never existed. But we'll accept it anyway.
1373 $ralpha = $ralpha || $2 || '';
1376 if ($tfork =~ /p([0-9]+)([a-z]?)/)
1379 # `1.4a-p3b' never existed. But we'll accept it anyway.
1380 $talpha = $talpha || $2 || '';
1384 $rminorminor = 99 if $ralpha ne '' && $rminorminor == 0;
1385 $tminorminor = 99 if $talpha ne '' && $tminorminor == 0;
1387 # 2.0 is better than 1.0.
1388 # 1.2 is better than 1.1.
1389 # 1.2a is better than 1.2.
1390 # If we require 3.4n-foo then we require something
1391 # >= 3.4n, with the `foo' fork identifier.
1392 # The $r* variables are what the user specified.
1393 # The $t* variables denote automake itself.
1394 if ($rmajor > $tmajor
1395 || ($rmajor == $tmajor && $rminor > $tminor)
1396 || ($rminor == $tminor && $rminor == $tminor
1397 && $rminorminor > $tminorminor)
1398 || ($rminor == $tminor && $rminor == $tminor
1399 && $rminorminor == $tminorminor
1400 && $ralpha gt $talpha)
1401 || ($rfork ne '' && $rfork ne $tfork))
1403 &am_line_error ('AUTOMAKE_OPTIONS',
1404 "require version $_, but have $VERSION");
1411 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1414 if (&variable_defined ('AUTOMAKE_OPTIONS'))
1416 foreach (&variable_value_as_list ('AUTOMAKE_OPTIONS', ''))
1419 if ($_ eq 'gnits' || $_ eq 'gnu' || $_ eq 'foreign')
1421 &set_strictness ($_);
1423 elsif ($_ eq 'cygnus')
1429 # An option like "../lib/ansi2knr" is allowed. With
1430 # no path prefix, we assume the required programs are
1431 # in this directory. We save the actual option for
1433 $options{'ansi2knr'} = $_;
1435 elsif ($_ eq 'no-installman' || $_ eq 'no-installinfo'
1436 || $_ eq 'dist-shar' || $_ eq 'dist-zip'
1437 || $_ eq 'dist-tarZ' || $_ eq 'dist-bzip2'
1438 || $_ eq 'dejagnu' || $_ eq 'no-texinfo.tex'
1439 || $_ eq 'readme-alpha' || $_ eq 'check-news'
1440 || $_ eq 'subdir-objects' || $_ eq 'nostdinc')
1442 # Explicitly recognize these.
1444 elsif ($_ eq 'no-dependencies')
1446 $use_dependencies = 0;
1448 elsif (/(\d+)\.(\d+)([a-z]?)(-[A-Za-z0-9]+)?/)
1450 # Got a version number.
1451 if (version_check ($1, $2, $3, $4))
1458 &am_line_error ('AUTOMAKE_OPTIONS',
1459 "option `" . $_ . "\' not recognized");
1464 if ($strictness == $GNITS)
1466 $options{'readme-alpha'} = 1;
1467 $options{'check-news'} = 1;
1474 # get_object_extension ($OUT)
1475 # ---------------------------
1476 # Return object extension. Just once, put some code into the output.
1477 # OUT is the name of the output file
1478 sub get_object_extension
1482 # Maybe require libtool library object files.
1483 my $extension = '.$(OBJEXT)';
1484 $extension = '.lo' if ($out =~ /\.la$/);
1486 # Check for automatic de-ANSI-fication.
1487 $extension = '$U' . $extension
1488 if defined $options{'ansi2knr'};
1490 $get_object_extension_was_run = 1;
1496 # Call finish function for each language that was used.
1497 sub handle_languages
1499 if ($use_dependencies)
1501 # Include auto-dep code. Don't include it if DEP_FILES would
1503 if (&saw_sources_p (0) && keys %dep_files)
1505 # Set location of depcomp.
1506 &define_variable ('depcomp', "\$(SHELL) $config_aux_dir/depcomp");
1508 &require_config_file ($FOREIGN, 'depcomp');
1510 my @deplist = sort keys %dep_files;
1512 # We define this as a conditional variable because BSD
1513 # make can't handle backslashes for continuing comments on
1514 # the following line.
1515 &define_pretty_variable ('DEP_FILES', 'AMDEP_TRUE', @deplist);
1517 # Generate each `include' individually. Irix 6 make will
1518 # not properly include several files resulting from a
1519 # variable expansion; generating many separate includes
1521 $output_rules .= "\n";
1522 foreach my $iter (@deplist)
1524 $output_rules .= (subst ('AMDEP_TRUE')
1525 . subst ('am__include')
1527 . subst ('am__quote')
1529 . subst ('am__quote')
1533 $output_rules .= &file_contents ('depend');
1538 &define_variable ('depcomp', '');
1543 # Is the c linker needed?
1545 foreach my $ext (sort keys %extension_seen)
1547 next unless $extension_map{$ext};
1549 my $lang = $languages{$extension_map{$ext}};
1551 my $rule_file = $lang->rule_file || 'depend2';
1553 # Get information on $LANG.
1554 my $pfx = $lang->autodep;
1555 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1557 my $AMDEP = (($use_dependencies && $lang->autodep ne 'no')
1558 ? 'AMDEP' : 'FALSE');
1560 my %transform = ('EXT' => $ext,
1563 'LIBTOOL' => $seen_libtool,
1565 '-c' => $lang->compile_flag || '',
1567 => (count_files_for_language ($lang->name) > 1));
1569 # Generate the appropriate rules for this extension.
1570 if (($use_dependencies && $lang->autodep ne 'no')
1571 || defined $lang->compile)
1573 # Some C compilers don't support -c -o. Use it only if really
1575 my $output_flag = $lang->output_flag || '';
1578 && $lang->flags eq 'CFLAGS'
1579 && defined $options{'subdir-objects'});
1581 # FIXME: this is a temporary hack to compute a possible
1582 # derived extension. This is not used by depend2.am.
1583 (my $der_ext = $ext) =~ tr/yl/cc/;
1585 # Another yacc/lex hack.
1586 my $destfile = '$*.' . $der_ext;
1589 file_contents ($rule_file,
1593 'DERIVED-EXT' => $der_ext,
1601 'COMPILE' => '$(' . $lang->compiler . ')',
1602 'LTCOMPILE' => '$(LT' . $lang->compiler . ')',
1603 '-o' => $output_flag);
1606 # Now include code for each specially handled object with this
1608 my %seen_files = ();
1609 foreach my $file (@{$lang_specific_files{$lang->name}})
1611 my ($derived, $source, $obj, $myext) = split (' ', $file);
1613 # We might see a given object twice, for instance if it is
1614 # used under different conditions.
1615 next if defined $seen_files{$obj};
1616 $seen_files{$obj} = 1;
1618 my $flags = $lang->flags || '';
1619 my $val = "${derived}_${flags}";
1621 &prog_error ("found $lang->name in handle_languages, but compiler not defined")
1622 unless defined $lang->compile;
1624 (my $obj_compile = $lang->compile) =~ s/\(AM_$flags/\($val/;
1625 my $obj_ltcompile = '$(LIBTOOL) --mode=compile ' . $obj_compile;
1627 # We _need_ `-o' for per object rules.
1628 my $output_flag = $lang->output_flag || '-o';
1630 # Generate a transform which will turn suffix targets in
1631 # depend2.am into real targets for the particular objects we
1634 file_contents ($rule_file,
1639 'SOURCE' => $source,
1640 # Use $myext and not `.o' here, in case
1641 # we are actually building a new source
1642 # file -- e.g. via yacc.
1643 'OBJ' => "$obj$myext",
1644 'OBJOBJ' => "$obj.obj",
1645 'LTOBJ' => "$obj.lo",
1647 'COMPILE' => $obj_compile,
1648 'LTCOMPILE' => $obj_ltcompile,
1649 '-o' => $output_flag));
1652 # The rest of the loop is done once per language.
1653 next if defined $done{$lang};
1656 # Load the language dependent Makefile chunks.
1657 my %lang = map { uc ($_) => 0 } keys %languages;
1658 $lang{uc ($lang->name)} = 1;
1659 $output_rules .= file_contents ('lang-compile', %transform, %lang);
1661 # If the source to a program consists entirely of code from a
1662 # `pure' language, for instance C++ for Fortran 77, then we
1663 # don't need the C compiler code. However if we run into
1664 # something unusual then we do generate the C code. There are
1665 # probably corner cases here that do not work properly.
1666 # People linking Java code to Fortran code deserve pain.
1667 $needs_c ||= ! $lang->pure;
1669 define_compiler_variable ($lang)
1670 if ($lang->compile);
1672 define_linker_variable ($lang)
1675 foreach my $var (@{$lang->config_vars})
1677 am_error ($lang->Name
1678 . " source seen but `$var' not defined in"
1679 . " `$configure_ac'")
1680 if !exists $configure_vars{$var};
1683 # The compiler's flag must be a configure variable.
1684 define_configure_variable ($lang->flags)
1685 if defined $lang->flags && $lang->define_flag;
1687 # Call the finisher.
1691 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1692 # suffix rule was learned), don't bother with the C stuff. But if
1693 # anything else creeps in, then use it.
1695 if $need_link || scalar keys %suffix_rules > 1;
1699 if (! defined $done{$languages{'c'}})
1701 &define_configure_variable ($languages{'c'}->flags);
1702 &define_compiler_variable ($languages{'c'});
1704 define_linker_variable ($languages{'c'});
1708 # Check to make sure a source defined in LIBOBJS is not explicitly
1709 # mentioned. This is a separate function (as opposed to being inlined
1710 # in handle_source_transform) because it isn't always appropriate to
1712 sub check_libobjs_sources
1714 my ($one_file, $unxformed) = @_;
1716 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1717 'dist_EXTRA_', 'nodist_EXTRA_')
1720 if (&variable_defined ($prefix . $one_file . '_SOURCES'))
1722 @files = &variable_value_as_list (($prefix
1723 . $one_file . '_SOURCES'),
1726 elsif ($prefix eq '')
1728 @files = ($unxformed . '.c');
1735 foreach my $file (@files)
1737 if (defined $libsources{$file})
1739 &am_line_error ($prefix . $one_file . '_SOURCES',
1740 "automatically discovered file `$file' should not be explicitly mentioned");
1747 # ($LINKER, @OBJECTS)
1748 # handle_single_transform_list ($VAR, $DERIVED, $OBJ, @FILES)
1749 # -----------------------------------------------------------
1750 # Does much of the actual work for handle_source_transform.
1752 # $DERIVED is the name of resulting executable or library
1753 # $OBJ is the object extension (e.g., `$U.lo')
1754 # @FILES is the list of source files to transform
1756 # $LINKER is name of linker to use (empty string for default linker)
1757 # @OBJECTS are names of objects
1758 sub handle_single_transform_list ($$$@)
1760 my ($var, $derived, $obj, @files) = @_;
1762 my $nonansi_obj = $obj;
1763 $nonansi_obj =~ s/\$U//g;
1764 my %linkers_used = ();
1766 # Turn sources into objects. We use a while loop like this
1767 # because we might add to @files in the loop.
1768 while (scalar @files > 0)
1772 # Configure substitutions in _SOURCES variables are errors.
1775 &am_line_error ($var, "$var includes configure substitution `$_'");
1779 # If the source file is in a subdirectory then the `.o' is put
1780 # into the current directory, unless the subdir-objects option
1783 # Split file name into base and extension.
1784 next if ! /^(?:(.*)\/)?([^\/]*)\.(.*)$/;
1786 my $directory = $1 || '';
1790 # We must generate a rule for the object if it requires its own flags.
1792 my ($linker, $object);
1794 # This records whether we've seen a derived source file (eg,
1796 my $derived_source = 0;
1798 # This holds the `aggregate context' of the file we are
1799 # currently examining. If the file is compiled with
1800 # per-object flags, then it will be the name of the object.
1801 # Otherwise it will be `AM'. This is used by the target hook
1802 # language function.
1803 my $aggregate = 'AM';
1805 $extension = &derive_suffix ($extension);
1807 if ($extension_map{$extension} &&
1808 ($lang = $languages{$extension_map{$extension}}))
1810 # Found the language, so see what it says.
1811 &saw_extension ($extension);
1813 # Note: computed subr call. The language rewrite function
1814 # should return one of the $LANG_* constants. It could
1815 # also return a list whose first value is such a constant
1816 # and whose second value is a new source extension which
1817 # should be applied. This means this particular language
1818 # generates another source file which we must then process
1820 my $subr = 'lang_' . $lang->name . '_rewrite';
1821 my ($r, $source_extension)
1822 = & $subr ($directory, $base, $extension);
1823 # Skip this entry if we were asked not to process it.
1824 next if $r == $LANG_IGNORE;
1826 # Now extract linker and other info.
1827 $linker = $lang->linker;
1830 if (defined $source_extension)
1832 $this_obj_ext = '.' . $source_extension;
1833 $derived_source = 1;
1837 $this_obj_ext = $obj;
1841 $this_obj_ext = $nonansi_obj;
1843 $object = $base . $this_obj_ext;
1845 if (defined $lang->flags
1846 && &variable_defined ($derived . '_' . $lang->flags))
1848 # We have a per-executable flag in effect for this
1849 # object. In this case we rewrite the object's
1850 # name to ensure it is unique. We also require
1851 # the `compile' program to deal with compilers
1852 # where `-c -o' does not work.
1854 # We choose the name `DERIVED_OBJECT' to ensure
1855 # (1) uniqueness, and (2) continuity between
1856 # invocations. However, this will result in a
1857 # name that is too long for losing systems, in
1858 # some situations. So we provide _SHORTNAME to
1861 my $dname = $derived;
1862 if (&variable_defined ($derived . '_SHORTNAME'))
1864 # FIXME: should use the same conditional as
1865 # the _SOURCES variable. But this is really
1866 # silly overkill -- nobody should have
1867 # conditional shortnames.
1868 $dname = &variable_value ($derived . '_SHORTNAME');
1870 $object = $dname . '-' . $object;
1872 &require_config_file ($FOREIGN, 'compile')
1873 if $lang->name eq 'c';
1875 &prog_error ("$lang->name flags defined without compiler")
1876 if ! defined $lang->compile;
1881 # If rewrite said it was ok, put the object into a
1883 if ($r == $LANG_SUBDIR && $directory ne '')
1885 $object = $directory . '/' . $object;
1888 # If doing dependency tracking, then we can't print
1889 # the rule. If we have a subdir object, we need to
1890 # generate an explicit rule. Actually, in any case
1891 # where the object is not in `.' we need a special
1892 # rule. The per-object rules in this case are
1893 # generated later, by handle_languages.
1894 if ($renamed || $directory ne '')
1896 my $obj_sans_ext = substr ($object, 0,
1897 - length ($this_obj_ext));
1898 my $val = ("$full $obj_sans_ext "
1899 # Only use $this_obj_ext in the derived
1900 # source case because in the other case we
1901 # *don't* want $(OBJEXT) to appear here.
1902 . ($derived_source ? $this_obj_ext : '.o'));
1904 # If we renamed the object then we want to use the
1905 # per-executable flag name. But if this is simply a
1906 # subdir build then we still want to use the AM_ flag
1910 $val = "$derived $val";
1911 $aggregate = $derived;
1918 # Each item on this list is a string consisting of
1919 # four space-separated values: the derived flag prefix
1920 # (eg, for `foo_CFLAGS', it is `foo'), the name of the
1921 # source file, the base name of the output file, and
1922 # the extension for the object file.
1923 push (@{$lang_specific_files{$lang->name}}, $val);
1926 elsif ($extension eq 'o')
1928 # This is probably the result of a direct suffix rule.
1929 # In this case we just accept the rewrite. FIXME:
1930 # this fails if we want libtool objects.
1931 $object = $base . '.' . $extension;
1936 # No error message here. Used to have one, but it was
1938 # FIXME: we could potentially do more processing here,
1939 # perhaps treating the new extension as though it were a
1940 # new source extension (as above). This would require
1941 # more restructuring than is appropriate right now.
1945 if (defined $object_map{$object})
1947 if ($object_map{$object} ne $full)
1949 &am_error ("object `$object' created by `$full' and `$object_map{$object}'");
1953 # Let the language do some special magic if required.
1954 $lang->target_hook ($aggregate, $object, $full);
1956 if ($derived_source)
1958 &prog_error ("$lang->name has automatic dependency tracking")
1959 if $lang->autodep ne 'no';
1960 # Make sure this new source file is handled next. That will
1961 # make it appear to be at the right place in the list.
1962 unshift (@files, $object);
1964 &push_dist_common ($object);
1968 $linkers_used{$linker} = 1;
1970 push (@result, $object);
1972 if (! defined $object_map{$object})
1975 $object_map{$object} = $full;
1977 # If file is in subdirectory, we need explicit
1979 if ($directory ne '' || $renamed)
1981 push (@dep_list, $full);
1984 # If resulting object is in subdir, we need to make
1985 # sure the subdir exists at build time.
1986 if ($object =~ /\//)
1988 # FIXME: check that $DIRECTORY is somewhere in the
1991 # We don't allow `..' in object file names for
1992 # *any* source, not just Java. For Java it just
1993 # doesn't make sense, but in general it is
1994 # a problem because we can't pick a good name for
1996 if ($object =~ /(\/|^)\.\.\//)
1998 &am_error ("`$full' contains `..' component but should not");
2001 # Make sure object is removed by `make mostlyclean'.
2002 $compile_clean_files{$object} = $MOSTLY_CLEAN;
2004 push (@dep_list, &require_build_directory ($directory));
2006 # If we're generating dependencies, we also want
2007 # to make sure that the appropriate subdir of the
2008 # .deps directory is created.
2009 push (@dep_list, &require_build_directory ('$(DEPDIR)/' . $directory))
2010 if ($use_dependencies);
2013 &pretty_print_rule ($object . ':', "\t", @dep_list)
2014 if scalar @dep_list > 0;
2017 # Transform .o or $o file into .P file (for automatic
2019 if ($lang && $lang->autodep ne 'no')
2021 my $depfile = $object;
2022 $depfile =~ s/\.([^.]*)$/.P$1/;
2023 $depfile =~ s/\$\(OBJEXT\)$/o/;
2024 $dep_files{'$(DEPDIR)/' . $depfile} = 1;
2028 return (&resolve_linker (%linkers_used), @result);
2033 # Handle SOURCE->OBJECT transform for one program or library.
2035 # canonical (transformed) name of object to build
2036 # actual name of object to build
2037 # object extension (ie either `.o' or `$o'.
2038 # Return result is name of linker variable that must be used.
2039 # Empty return means just use `LINK'.
2040 sub handle_source_transform
2042 # one_file is canonical name. unxformed is given name. obj is
2044 my ($one_file, $unxformed, $obj) = @_;
2048 if (&variable_defined ($one_file . "_OBJECTS"))
2050 &am_line_error ($one_file . '_OBJECTS',
2051 $one_file . '_OBJECTS', 'should not be defined');
2052 # No point in continuing.
2057 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2058 'dist_EXTRA_', 'nodist_EXTRA_')
2060 my $var = $prefix . $one_file . "_SOURCES";
2062 if !variable_defined ($var);
2064 # We are going to define _OBJECTS variables using the prefix.
2065 # Then we glom them all together. So we can't use the null
2066 # prefix here as we need it later.
2067 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2069 # Keep track of which prefixes we saw.
2070 $used_pfx{$xpfx} = 1
2071 unless $prefix =~ /EXTRA_/;
2073 push (@sources, '$(' . $prefix . $one_file . "_SOURCES)");
2074 push (@dist_sources, '$(' . $prefix . $one_file . "_SOURCES)")
2075 unless $prefix =~ /^nodist_/;
2076 foreach my $cond (variable_conditions ($var))
2078 my @files = &variable_value_as_list ($var, $cond);
2079 my ($temp, @result) =
2080 &handle_single_transform_list ($var, $one_file, $obj,
2082 # If there are no files to compile, don't require a linker (yet).
2086 # Define _OBJECTS conditionally.
2087 &define_pretty_variable ($xpfx . $one_file . '_OBJECTS',
2089 unless $prefix =~ /EXTRA_/;
2093 my @keys = sort keys %used_pfx;
2094 if (scalar @keys == 0)
2096 &define_variable ($one_file . "_SOURCES", $unxformed . ".c");
2097 push (@sources, $unxformed . '.c');
2098 push (@dist_sources, $unxformed . '.c');
2100 my ($temp, @result) =
2101 &handle_single_transform_list ($one_file . '_SOURCES',
2104 $linker = $temp if $linker eq '';
2105 &define_pretty_variable ($one_file . "_OBJECTS", '', @result)
2109 grep ($_ = '$(' . $_ . $one_file . '_OBJECTS)', @keys);
2110 &define_pretty_variable ($one_file . '_OBJECTS', '', @keys);
2113 # If we want to use `LINK' we must make sure it is defined.
2123 # handle_lib_objects ($XNAME, $VAR)
2124 # ---------------------------------
2125 # Special-case @ALLOCA@ and @LIBOBJS@ in _LDADD or _LIBADD variables.
2126 # Also, generate _DEPENDENCIES variable if appropriate.
2128 # transformed name of object being built, or empty string if no object
2129 # name of _LDADD/_LIBADD-type variable to examine
2130 # Returns 1 if LIBOBJS seen, 0 otherwise.
2131 sub handle_lib_objects
2133 my ($xname, $var) = @_;
2135 &prog_error ("handle_lib_objects: $var undefined")
2136 if ! &variable_defined ($var);
2139 foreach my $cond (&variable_conditions ($var))
2141 if (&handle_lib_objects_cond ($xname, $var, $cond))
2149 # Subroutine of handle_lib_objects: handle a particular condition.
2150 sub handle_lib_objects_cond
2152 my ($xname, $var, $cond) = @_;
2154 # We recognize certain things that are commonly put in LIBADD or
2158 my $seen_libobjs = 0;
2161 foreach my $lsearch (&variable_value_as_list ($var, $cond))
2163 # Skip -lfoo and -Ldir; these are explicitly allowed.
2164 next if $lsearch =~ /^-[lL]/;
2165 if (! $flagvar && $lsearch =~ /^-/)
2167 if ($var =~ /^(.*)LDADD$/)
2169 # Skip -dlopen and -dlpreopen; these are explicitly allowed.
2170 next if $lsearch =~ /^-dl(pre)?open$/;
2171 &am_line_error ($var, "linker flags such as `$lsearch' belong in `${1}LDFLAGS");
2175 # Only get this error once.
2177 &am_line_error ($var, "linker flags such as `$lsearch' belong in `${1}LDFLAGS");
2181 # Assume we have a file of some sort, and push it onto the
2182 # dependency list. Autoconf substitutions are not pushed;
2183 # rarely is a new dependency substituted into (eg) foo_LDADD
2184 # -- but "bad things (eg -lX11) are routinely substituted.
2185 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2186 # and handled specially below.
2187 push (@dep_list, $lsearch)
2188 unless $lsearch =~ /^\@.*\@$/;
2190 # Automatically handle @LIBOBJS@ and @ALLOCA@. Basically this
2191 # means adding entries to dep_files.
2192 if ($lsearch =~ /^\@(LT)?LIBOBJS\@$/)
2194 my $myobjext = ($1 ? 'l' : '') . 'o';
2196 push (@dep_list, $lsearch);
2198 if (! keys %libsources
2199 && ! &variable_defined ($1 . 'LIBOBJS'))
2201 &am_line_error ($var, "\@$1" . "LIBOBJS\@ seen but never set in `$configure_ac'");
2204 foreach my $iter (keys %libsources)
2206 if ($iter =~ /\.([cly])$/)
2208 &saw_extension ($1);
2209 &saw_extension ('c');
2212 if ($iter =~ /\.h$/)
2214 &require_file_with_line ($var, $FOREIGN, $iter);
2216 elsif ($iter ne 'alloca.c')
2218 my $rewrite = $iter;
2219 $rewrite =~ s/\.c$/.P$myobjext/;
2220 $dep_files{'$(DEPDIR)/' . $rewrite} = 1;
2221 ($rewrite = $iter) =~ s/(\W)/\\$1/g;
2222 $rewrite = "^" . $rewrite . "\$";
2223 # Only require the file if it is not a built source.
2224 if (! &variable_defined ('BUILT_SOURCES')
2225 || ! grep (/$rewrite/,
2226 &variable_value_as_list ('BUILT_SOURCES',
2229 &require_file_with_line ($var, $FOREIGN, $iter);
2234 elsif ($lsearch =~ /^\@(LT)?ALLOCA\@$/)
2236 my $myobjext = ($1 ? 'l' : '') . 'o';
2238 push (@dep_list, $lsearch);
2239 &am_line_error ($var,
2240 "\@$1" . "ALLOCA\@ seen but `AC_FUNC_ALLOCA' not in `$configure_ac'")
2241 if ! defined $libsources{'alloca.c'};
2242 $dep_files{'$(DEPDIR)/alloca.P' . $myobjext} = 1;
2243 &require_file_with_line ($var, $FOREIGN, 'alloca.c');
2244 &saw_extension ('c');
2248 if ($xname ne '' && ! &variable_defined ($xname . '_DEPENDENCIES', $cond))
2250 &define_pretty_variable ($xname . '_DEPENDENCIES', $cond, @dep_list);
2253 return $seen_libobjs;
2256 # Canonicalize the input parameter
2260 $string =~ tr/A-Za-z0-9_\@/_/c;
2264 # Canonicalize a name, and check to make sure the non-canonical name
2265 # is never used. Returns canonical name. Arguments are name and a
2266 # list of suffixes to check for.
2267 sub check_canonical_spelling
2269 my ($name, @suffixes) = @_;
2271 my $xname = &canonicalize ($name);
2272 if ($xname ne $name)
2274 foreach my $xt (@suffixes)
2276 &am_line_error ("$name$xt",
2277 "invalid variable `$name$xt'; "
2278 . "should be `$xname$xt'")
2279 if &variable_defined ("$name$xt");
2289 # Set up the compile suite.
2290 sub handle_compile ()
2293 unless $get_object_extension_was_run;
2296 my $default_includes = '';
2297 if (! defined $options{'nostdinc'})
2299 $default_includes = ' -I. -I$(srcdir)';
2301 if (&variable_defined ('CONFIG_HEADER'))
2303 foreach my $hdr (split (' ', &variable_value ('CONFIG_HEADER')))
2305 $default_includes .= ' -I' . dirname ($hdr);
2310 my (@mostly_rms, @dist_rms);
2311 foreach my $item (sort keys %compile_clean_files)
2313 if ($compile_clean_files{$item} == $MOSTLY_CLEAN)
2315 push (@mostly_rms, "\t-rm -f $item");
2317 elsif ($compile_clean_files{$item} == $DIST_CLEAN)
2319 push (@dist_rms, "\t-rm -f $item");
2323 &prog_error ("invalid entry in \%compile_clean_files");
2327 my ($coms, $vars, $rules) =
2328 &file_contents_internal (1, "$libdir/am/compile.am",
2329 ('DEFAULT_INCLUDES' => $default_includes,
2330 'MOSTLYRMS' => join ("\n", @mostly_rms),
2331 'DISTRMS' => join ("\n", @dist_rms)));
2332 $output_vars .= $vars;
2333 $output_rules .= "$coms$rules";
2335 # Check for automatic de-ANSI-fication.
2336 if (defined $options{'ansi2knr'})
2338 if (! $am_c_prototypes)
2340 &am_line_error ('AUTOMAKE_OPTIONS',
2341 "option `ansi2knr' in use but `AM_C_PROTOTYPES' not in `$configure_ac'");
2342 &keyed_aclocal_warning ('AM_C_PROTOTYPES');
2343 # Only give this error once.
2344 $am_c_prototypes = 1;
2347 # topdir is where ansi2knr should be.
2348 if ($options{'ansi2knr'} eq 'ansi2knr')
2350 # Only require ansi2knr files if they should appear in
2352 &require_file_with_line ('AUTOMAKE_OPTIONS', $FOREIGN,
2353 'ansi2knr.c', 'ansi2knr.1');
2355 # ansi2knr needs to be built before subdirs, so unshift it.
2356 unshift (@all, '$(ANSI2KNR)');
2359 my $ansi2knr_dir = '';
2360 $ansi2knr_dir = dirname ($options{'ansi2knr'})
2361 if $options{'ansi2knr'} ne 'ansi2knr';
2363 $output_rules .= &file_contents ('ansi2knr',
2364 ('ANSI2KNR-DIR' => $ansi2knr_dir));
2371 # Handle libtool rules.
2374 return unless $seen_libtool;
2376 # libtool requires some files, but only at top level.
2377 &require_conf_file_with_conf_line ($libtool_line, $FOREIGN,
2379 if $relative_dir eq '.';
2381 # Output the libtool compilation rules.
2382 $output_rules .= &file_contents ('libtool');
2385 # handle_programs ()
2386 # ------------------
2387 # Handle C programs.
2390 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2391 'bin', 'sbin', 'libexec', 'pkglib',
2393 return if ! @proglist;
2395 my $seen_libobjs = 0;
2396 foreach my $one_file (@proglist)
2398 my $obj = &get_object_extension ($one_file);
2400 # Canonicalize names and check for misspellings.
2401 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2402 '_SOURCES', '_OBJECTS',
2405 my $linker = &handle_source_transform ($xname, $one_file, $obj);
2408 if (&variable_defined ($xname . "_LDADD"))
2410 if (&handle_lib_objects ($xname, $xname . '_LDADD'))
2418 # User didn't define prog_LDADD override. So do it.
2419 &define_variable ($xname . '_LDADD', '$(LDADD)');
2421 # This does a bit too much work. But we need it to
2422 # generate _DEPENDENCIES when appropriate.
2423 if (&variable_defined ('LDADD'))
2425 if (&handle_lib_objects ($xname, 'LDADD'))
2430 elsif (! &variable_defined ($xname . '_DEPENDENCIES'))
2432 &define_variable ($xname . '_DEPENDENCIES', '');
2437 if (&variable_defined ($xname . '_LIBADD'))
2439 &am_line_error ($xname . '_LIBADD',
2440 "use `" . $xname . "_LDADD', not `"
2441 . $xname . "_LIBADD'");
2444 if (! &variable_defined ($xname . '_LDFLAGS'))
2446 # Define the prog_LDFLAGS variable.
2447 &define_variable ($xname . '_LDFLAGS', '');
2450 # Determine program to use for link.
2452 if (&variable_defined ($xname . '_LINK'))
2454 $xlink = $xname . '_LINK';
2458 $xlink = $linker ? $linker : 'LINK';
2461 # If the resulting program lies into a subdirectory,
2462 # make sure this directory will exist.
2463 my $dirstamp = &require_build_directory_maybe ($one_file);
2465 $output_rules .= &file_contents ('program',
2466 ('PROGRAM' => $one_file,
2467 'XPROGRAM' => $xname,
2469 'DIRSTAMP' => $dirstamp));
2472 if (&variable_defined ('LDADD') && &handle_lib_objects ('', 'LDADD'))
2479 foreach my $one_file (@proglist)
2481 my $xname = &canonicalize ($one_file);
2483 if (&variable_defined ($xname . '_LDADD'))
2485 &check_libobjs_sources ($xname, $xname . '_LDADD');
2487 elsif (&variable_defined ('LDADD'))
2489 &check_libobjs_sources ($xname, 'LDADD');
2496 # handle_libraries ()
2497 # -------------------
2499 sub handle_libraries
2501 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2502 'lib', 'pkglib', 'noinst', 'check');
2503 return if ! @liblist;
2505 my %valid = &am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2507 if (! defined $configure_vars{'RANLIB'})
2509 foreach my $key (keys %valid)
2511 if (&variable_defined ($key . '_LIBRARIES'))
2513 &am_line_error ($key . '_LIBRARIES', "library used but `RANLIB' not defined in `$configure_ac'");
2514 # Only get this error once. If this is ever printed,
2516 $configure_vars{'RANLIB'} = 'BUG';
2522 my $seen_libobjs = 0;
2523 foreach my $onelib (@liblist)
2525 # Check that the library fits the standard naming convention.
2526 if (basename ($onelib) !~ /^lib.*\.a/)
2528 # FIXME should put line number here. That means mapping
2529 # from library name back to variable name.
2530 &am_error ("`$onelib' is not a standard library name");
2533 my $obj = &get_object_extension ($onelib);
2535 # Canonicalize names and check for misspellings.
2536 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2537 '_OBJECTS', '_DEPENDENCIES',
2540 if (! &variable_defined ($xlib . '_AR'))
2542 &define_variable ($xlib . '_AR', '$(AR) cru');
2545 if (&variable_defined ($xlib . '_LIBADD'))
2547 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2554 # Generate support for conditional object inclusion in
2556 &define_variable ($xlib . "_LIBADD", '');
2559 if (&variable_defined ($xlib . '_LDADD'))
2561 &am_line_error ($xlib . '_LDADD',
2562 "use `" . $xlib . "_LIBADD', not `"
2563 . $xlib . "_LDADD'");
2566 # Make sure we at look at this.
2567 &examine_variable ($xlib . '_DEPENDENCIES');
2569 &handle_source_transform ($xlib, $onelib, $obj);
2571 # If the resulting library lies into a subdirectory,
2572 # make sure this directory will exist.
2573 my $dirstamp = &require_build_directory_maybe ($onelib);
2575 $output_rules .= &file_contents ('library',
2576 ('LIBRARY' => $onelib,
2577 'XLIBRARY' => $xlib,
2578 'DIRSTAMP' => $dirstamp));
2583 foreach my $onelib (@liblist)
2585 my $xlib = &canonicalize ($onelib);
2586 if (&variable_defined ($xlib . '_LIBADD'))
2588 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2595 # handle_ltlibraries ()
2596 # ---------------------
2597 # Handle shared libraries.
2598 sub handle_ltlibraries
2600 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2601 'noinst', 'lib', 'pkglib', 'check');
2602 return if ! @liblist;
2605 my %valid = &am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2608 foreach my $key (keys %valid)
2610 if (&variable_defined ($key . '_LTLIBRARIES'))
2614 &am_line_error ($key . '_LTLIBRARIES', "library used but `LIBTOOL' not defined in `$configure_ac'");
2615 # Only get this error once. If this is ever printed,
2617 $configure_vars{'LIBTOOL'} = 'BUG';
2621 # Get the installation directory of each library.
2622 for (&variable_value_as_list ($key . '_LTLIBRARIES', 'all'))
2626 &am_error ("`$_' is already going to be installed in `$instdirs{$_}'");
2630 $instdirs{$_} = $key;
2636 my $seen_libobjs = 0;
2637 foreach my $onelib (@liblist)
2639 my $obj = &get_object_extension ($onelib);
2641 # Canonicalize names and check for misspellings.
2642 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2643 '_SOURCES', '_OBJECTS',
2646 if (! &variable_defined ($xlib . '_LDFLAGS'))
2648 # Define the lib_LDFLAGS variable.
2649 &define_variable ($xlib . '_LDFLAGS', '');
2652 # Check that the library fits the standard naming convention.
2653 my $libname_rx = "^lib.*\.la";
2654 if ((&variable_defined ($xlib . '_LDFLAGS')
2655 && grep (/-module/, &variable_value_as_list ($xlib . '_LDFLAGS',
2657 || (&variable_defined ('LDFLAGS')
2658 && grep (/-module/, &variable_value_as_list ('LDFLAGS',
2661 # Relax name checking for libtool modules.
2662 $libname_rx = "\.la";
2664 if (basename ($onelib) !~ /$libname_rx$/)
2666 # FIXME this should only be a warning for foreign packages
2667 # FIXME should put line number here. That means mapping
2668 # from library name back to variable name.
2669 &am_error ("`$onelib' is not a standard libtool library name");
2672 if (&variable_defined ($xlib . '_LIBADD'))
2674 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2681 # Generate support for conditional object inclusion in
2683 &define_variable ($xlib . "_LIBADD", '');
2686 if (&variable_defined ($xlib . '_LDADD'))
2688 &am_line_error ($xlib . '_LDADD',
2689 "use `" . $xlib . "_LIBADD', not `"
2690 . $xlib . "_LDADD'");
2693 # Make sure we at look at this.
2694 &examine_variable ($xlib . '_DEPENDENCIES');
2696 my $linker = &handle_source_transform ($xlib, $onelib, $obj);
2698 # Determine program to use for link.
2700 if (&variable_defined ($xlib . '_LINK'))
2702 $xlink = $xlib . '_LINK';
2706 $xlink = $linker ? $linker : 'LINK';
2710 if ($instdirs{$onelib} eq 'EXTRA'
2711 || $instdirs{$onelib} eq 'noinst'
2712 || $instdirs{$onelib} eq 'check')
2714 # It's an EXTRA_ library, so we can't specify -rpath,
2715 # because we don't know where the library will end up.
2716 # The user probably knows, but generally speaking automake
2717 # doesn't -- and in fact configure could decide
2718 # dynamically between two different locations.
2723 $rpath = ('-rpath $(' . $instdirs{$onelib} . 'dir)');
2726 # If the resulting library lies into a subdirectory,
2727 # make sure this directory will exist.
2728 my $dirstamp = &require_build_directory_maybe ($onelib);
2730 $output_rules .= &file_contents ('ltlibrary',
2731 ('LTLIBRARY' => $onelib,
2732 'XLTLIBRARY' => $xlib,
2735 'DIRSTAMP' => $dirstamp));
2740 foreach my $onelib (@liblist)
2742 my $xlib = &canonicalize ($onelib);
2743 if (&variable_defined ($xlib . '_LIBADD'))
2745 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2751 # See if any _SOURCES variable were misspelled. Also, make sure that
2752 # EXTRA_ variables don't contain configure substitutions.
2755 foreach my $varname (keys %var_value)
2757 foreach my $primary ('_SOURCES', '_LIBADD', '_LDADD', '_LDFLAGS',
2760 if ($varname =~ /$primary$/ && ! $content_seen{$varname})
2762 &am_line_error ($varname,
2763 "invalid unused variable name: `$varname'");
2772 # NOTE we no longer automatically clean SCRIPTS, because it is
2773 # useful to sometimes distribute scripts verbatim. This happens
2774 # eg in Automake itself.
2775 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2776 'bin', 'sbin', 'libexec', 'pkgdata',
2779 my $scripts_installed = 0;
2780 # Set $scripts_installed if appropriate. Make sure we only find
2781 # scripts which are actually installed -- this is why we can't
2782 # simply use the return value of am_install_var.
2783 my %valid = &am_primary_prefixes ('SCRIPTS', 1, 'bin', 'sbin',
2784 'libexec', 'pkgdata',
2786 foreach my $key (keys %valid)
2788 if ($key ne 'noinst'
2790 && &variable_defined ($key . '_SCRIPTS'))
2792 $scripts_installed = 1;
2793 # push (@check_tests, 'check-' . $key . 'SCRIPTS');
2799 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2800 # &scan_texinfo_file ($FILENAME)
2801 # ------------------------------
2802 # $OUTFILE is the name of the info file produced by $FILENAME.
2803 # $VFILE is the name of the version.texi file used (empty if none).
2804 # @CLEAN_FILES is the list of by products (indexes etc.)
2805 sub scan_texinfo_file
2807 my ($filename) = @_;
2809 # These are always created, no matter whether indexes are used or not.
2810 my @clean_suffixes = ('aux', 'dvi', 'log', 'ps', 'toc',
2811 # grep new.*index texinfo.tex
2812 'cp', 'fn', 'ky', 'vr', 'tp', 'pg');
2814 # There are predefined indexes which don't follow the regular rules.
2815 my %predefined_index =
2818 'c' => 'cps', 'f' => 'fns', 'k' => 'kys',
2819 'v' => 'vrs', 't' => 'tps', 'p' => 'pgs'
2822 # There are commands which include a hidden index command.
2826 'fn' => 'fns', 'un' => 'fns',
2827 'typefn' => 'fns', 'typefun' => 'fns',
2828 'mac' => 'fns', 'spec' => 'fns',
2829 'op' => 'fns', 'typeop' => 'fns',
2830 'method' => 'fns', 'typemethod' => 'fns',
2832 'vr' => 'vrs', 'var' => 'vrs',
2833 'typevr' => 'vrs', 'typevar' => 'vrs',
2836 'ivar' => 'vrs', 'typeivar' => 'vrs',
2841 # Indexes stored into another one. In this case, the *.??s file
2843 my @syncodeindexes = ();
2845 my $texi = new IO::File ("< $filename");
2848 &am_error ("couldn't open `$filename': $!");
2851 print "$me: reading $filename\n" if $verbose;
2853 my ($outfile, $vfile);
2854 while ($_ = $texi->getline)
2856 if (/^\@setfilename +(\S+)/)
2859 if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
2861 &am_file_error ($filename, "$.: ",
2862 "output `$outfile' has unrecognized extension");
2866 # A "version.texi" file is actually any file whose name
2867 # matches "vers*.texi".
2868 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2873 # Try to find what are the indexes which are used.
2875 # Creating a new category of index.
2876 elsif (/^\@def(code)?index (\w+)/)
2878 push @clean_suffixes, $2;
2881 # Storing in a predefined index.
2882 elsif (/^\@([cfkvtp])index /)
2884 push @clean_suffixes, $predefined_index{$1};
2886 elsif (/^\@def(\w+) /)
2888 push @clean_suffixes, $hidden_index{$1}
2889 if defined $hidden_index{$1};
2892 # Merging an index into an another.
2893 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2895 push @syncodeindexes, "$2s";
2896 push @clean_suffixes, "$3s";
2904 &am_error ("`$filename' missing \@setfilename");
2908 my $infobase = basename ($filename);
2909 $infobase =~ s/\.te?xi(nfo)?$//;
2910 # FIXME: I don't understand why, but I can't use "$infobase.$_" => 1.
2911 my %clean_files = map { "$infobase" . ".$_" => 1 } @clean_suffixes;
2912 grep { delete $clean_files{"$infobase.$_"} } @syncodeindexes;
2913 return ($outfile, $vfile, (sort keys %clean_files));
2917 # ($DO-SOMETHING, $TEXICLEANS)
2918 # handle_texinfo_helper ()
2920 # Handle all Texinfo source; helper for handle_texinfo
2921 sub handle_texinfo_helper
2923 &am_line_error ('TEXINFOS',
2924 "`TEXINFOS' is an anachronism; use `info_TEXINFOS'")
2925 if &variable_defined ('TEXINFOS');
2926 return (0, '') if (! &variable_defined ('info_TEXINFOS')
2927 && ! &variable_defined ('html_TEXINFOS'));
2929 if (&variable_defined ('html_TEXINFOS'))
2931 &am_line_error ('html_TEXINFOS',
2932 "HTML generation not yet supported");
2936 my @texis = &variable_value_as_list ('info_TEXINFOS', 'all');
2938 my (@info_deps_list, @dvis_list, @texi_deps);
2945 foreach my $info_cursor (@texis)
2947 my $infobase = $info_cursor;
2948 $infobase =~ s/\.(txi|texinfo|texi)$//;
2950 if ($infobase eq $info_cursor)
2952 # FIXME: report line number.
2953 &am_error ("texinfo file `$info_cursor' has unrecognized extension");
2956 $texi_suffixes{$1} = 1;
2958 # If 'version.texi' is referenced by input file, then include
2959 # automatic versioning capability.
2960 my ($out_file, $vtexi, @clean_files) =
2961 &scan_texinfo_file ("$relative_dir/$info_cursor")
2963 push (@texi_cleans, @clean_files);
2967 &am_error ("`$vtexi', included in `$info_cursor', also included in `$versions{$vtexi}'")
2968 if (defined $versions{$vtexi});
2969 $versions{$vtexi} = $info_cursor;
2971 # We number the stamp-vti files. This is doable since the
2972 # actual names don't matter much. We only number starting
2973 # with the second one, so that the common case looks nice.
2974 my $vti = ($done ? $done : 'vti');
2977 # This is ugly, but it is our historical practice.
2978 if ($config_aux_dir_set_in_configure_in)
2980 &require_conf_file_with_line ('info_TEXINFOS', $FOREIGN,
2985 &require_file_with_line ('info_TEXINFOS', $FOREIGN,
2990 if ($config_aux_dir_set_in_configure_in)
2992 $conf_dir = $config_aux_dir;
2993 $conf_dir .= '/' unless $conf_dir =~ /\/$/;
2997 $conf_dir = '$(srcdir)/';
2999 $output_rules .= &file_contents ('texi-vers',
3000 ('TEXI' => $info_cursor,
3003 'MDDIR' => $conf_dir));
3006 # If user specified file_TEXINFOS, then use that as explicit
3009 push (@texi_deps, $info_cursor);
3010 # Prefix with $(srcdir) because some version of make won't
3011 # work if the target has it and the dependency doesn't.
3012 push (@texi_deps, '$(srcdir)/' . $vtexi) if $vtexi;
3014 my $canonical = &canonicalize ($infobase);
3015 if (&variable_defined ($canonical . "_TEXINFOS"))
3017 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3018 &push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3021 $output_rules .= ("\n" . $out_file . ": "
3022 . join (' ', @texi_deps)
3023 . "\n" . $infobase . ".dvi: "
3024 . join (' ', @texi_deps)
3027 push (@info_deps_list, $out_file);
3028 push (@dvis_list, $infobase . '.dvi');
3031 # Handle location of texinfo.tex.
3032 my $need_texi_file = 0;
3036 $texinfodir = '$(top_srcdir)/../texinfo';
3037 &define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex");
3039 elsif ($config_aux_dir_set_in_configure_in)
3041 $texinfodir = $config_aux_dir;
3042 &define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex");
3043 $need_texi_file = 2; # so that we require_conf_file later
3045 elsif (&variable_defined ('TEXINFO_TEX'))
3047 # The user defined TEXINFO_TEX so assume he knows what he is
3049 $texinfodir = ('$(srcdir)/'
3050 . dirname (&variable_value ('TEXINFO_TEX')));
3054 $texinfodir = '$(srcdir)';
3055 $need_texi_file = 1;
3058 foreach my $txsfx (sort keys %texi_suffixes)
3060 $output_rules .= &file_contents ('texibuild',
3061 ('TEXINFODIR' => $texinfodir,
3062 'SUFFIX' => $txsfx));
3066 my $texiclean = &pretty_print_internal ("", "\t ", @texi_cleans);
3068 push (@dist_targets, 'dist-info');
3070 if (! defined $options{'no-installinfo'})
3072 # Make sure documentation is made and installed first. Use
3073 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3074 # get run twice during "make all".
3075 unshift (@all, '$(INFO_DEPS)');
3078 &define_variable ("INFO_DEPS", join (' ', @info_deps_list));
3079 &define_variable ("DVIS", join (' ', @dvis_list));
3080 # This next isn't strictly needed now -- the places that look here
3081 # could easily be changed to look in info_TEXINFOS. But this is
3082 # probably better, in case noinst_TEXINFOS is ever supported.
3083 &define_variable ("TEXINFOS", &variable_value ('info_TEXINFOS'));
3085 # Do some error checking. Note that this file is not required
3086 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3088 if ($need_texi_file && ! defined $options{'no-texinfo.tex'})
3090 if ($need_texi_file > 1)
3092 &require_conf_file_with_line ('info_TEXINFOS', $FOREIGN,
3097 &require_file_with_line ('info_TEXINFOS', $FOREIGN, 'texinfo.tex');
3101 return (1, $texiclean);
3106 # Handle all Texinfo source.
3109 my ($do_something, $texiclean) = handle_texinfo_helper ();
3110 $output_rules .= &file_contents ('texinfos',
3111 ('TEXICLEAN' => $texiclean,
3112 'LOCAL-TEXIS' => $do_something));
3115 # Handle any man pages.
3116 sub handle_man_pages
3118 &am_line_error ('MANS', "`MANS' is an anachronism; use `man_MANS'")
3119 if &variable_defined ('MANS');
3121 # Find all the sections in use. We do this by first looking for
3122 # "standard" sections, and then looking for any additional
3123 # sections used in man_MANS.
3124 my (%sections, %vlist);
3125 # We handle nodist_ for uniformity. man pages aren't distributed
3126 # by default so it isn't actually very important.
3127 foreach my $pfx ('', 'dist_', 'nodist_')
3129 # Add more sections as needed.
3130 foreach my $section ('0'..'9', 'n', 'l')
3132 if (&variable_defined ($pfx . 'man' . $section . '_MANS'))
3134 $sections{$section} = 1;
3135 $vlist{'$(' . $pfx . 'man' . $section . '_MANS)'} = 1;
3137 &push_dist_common ('$(' . $pfx . 'man' . $section . '_MANS)')
3142 if (&variable_defined ($pfx . 'man_MANS'))
3144 $vlist{'$(' . $pfx . 'man_MANS)'} = 1;
3145 foreach (&variable_value_as_list ($pfx . 'man_MANS', 'all'))
3147 # A page like `foo.1c' goes into man1dir.
3148 if (/\.([0-9a-z])([a-z]*)$/)
3154 &push_dist_common ('$(' . $pfx . 'man_MANS)')
3159 return unless %sections;
3161 # Now for each section, generate an install and unintall rule.
3162 # Sort sections so output is deterministic.
3163 foreach my $section (sort keys %sections)
3165 $output_rules .= &file_contents ('mans', ('SECTION' => $section));
3168 $output_vars .= &file_contents ('mans-vars',
3169 ('MANS' => join (' ', sort keys %vlist)));
3171 if (! defined $options{'no-installman'})
3173 push (@all, '$(MANS)');
3177 # Handle DATA variables.
3180 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3181 'data', 'sysconf', 'sharedstate', 'localstate',
3182 'pkgdata', 'noinst', 'check');
3189 if (&variable_defined ('SUBDIRS'))
3191 $output_rules .= ("tags-recursive:\n"
3192 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3193 # Never fail here if a subdir fails; it
3195 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3196 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3198 push (@tag_deps, 'tags-recursive');
3199 &depend ('.PHONY', 'tags-recursive');
3202 if (&saw_sources_p (1)
3203 || &variable_defined ('ETAGS_ARGS')
3207 foreach my $one_hdr (@config_headers)
3209 if ($relative_dir eq dirname ($one_hdr))
3211 # The config header is in this directory. So require it.
3212 $config .= ' ' if $config;
3213 $config .= basename ($one_hdr);
3216 $output_rules .= &file_contents ('tags',
3217 ('CONFIG' => $config,
3218 'DIRS' => join (' ', @tag_deps)));
3219 &examine_variable ('TAGS_DEPENDENCIES');
3221 elsif (&variable_defined ('TAGS_DEPENDENCIES'))
3223 &am_line_error ('TAGS_DEPENDENCIES',
3224 "doesn't make sense to define `TAGS_DEPENDENCIES' without sources or `ETAGS_ARGS'");
3228 # Every Makefile must define some sort of TAGS rule.
3229 # Otherwise, it would be possible for a top-level "make TAGS"
3230 # to fail because some subdirectory failed.
3231 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3235 # Handle multilib support.
3238 if ($seen_multilib && $relative_dir eq '.')
3240 $output_rules .= &file_contents ('multilib');
3246 # &for_dist_common ($A, $B)
3247 # -------------------------
3248 # Subroutine for &handle_dist: sort files to dist.
3250 # We put README first because it then becomes easier to make a
3251 # Usenet-compliant shar file (in these, README must be first).
3253 # FIXME: do more ordering of files here.
3266 # handle_dist ($MAKEFILE)
3267 # -----------------------
3268 # Handle 'dist' target.
3271 my ($makefile) = @_;
3273 # `make dist' isn't used in a Cygnus-style tree.
3274 # Omit the rules so that people don't try to use them.
3275 return if $cygnus_mode;
3277 # Look for common files that should be included in distribution.
3278 # If the aux dir is set, and it does not have a Makefile.am, then
3279 # we check for these files there as well.
3282 if ($relative_dir eq '.'
3283 && $config_aux_dir_set_in_configure_in)
3285 ($auxdir = $config_aux_dir) =~ s,^\$\(top_srcdir\)/,,;
3286 if (! &is_make_dir ($auxdir))
3291 foreach my $cfile (@common_files)
3293 if (-f ($relative_dir . "/" . $cfile))
3295 &push_dist_common ($cfile);
3298 # Don't use `elsif' here because a file might meaningfully
3299 # appear in both directories.
3300 if ($check_aux && -f ($auxdir . '/' . $cfile))
3302 &push_dist_common ($auxdir . '/' . $cfile);
3306 # We might copy elements from $configure_dist_common to
3307 # %dist_common if we think we need to. If the file appears in our
3308 # directory, we would have discovered it already, so we don't
3309 # check that. But if the file is in a subdir without a Makefile,
3310 # we want to distribute it here if we are doing `.'. Ugly!
3311 if ($relative_dir eq '.')
3313 foreach my $file (split (' ' , $configure_dist_common))
3315 if (! &is_make_dir (dirname ($file)))
3317 &push_dist_common ($file);
3324 # Files to distributed. Don't use &variable_value_as_list
3325 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3326 check_variable_defined_unconditionally ('DIST_COMMON');
3327 my @dist_common = split (' ', variable_value ('DIST_COMMON', 'TRUE'));
3328 @dist_common = uniq (sort for_dist_common (@dist_common));
3329 pretty_print ('DIST_COMMON = ', "\t", @dist_common);
3331 # Now that we've processed DIST_COMMON, disallow further attempts
3333 $handle_dist_run = 1;
3335 # Scan EXTRA_DIST to see if we need to distribute anything from a
3336 # subdir. If so, add it to the list. I didn't want to do this
3337 # originally, but there were so many requests that I finally
3339 if (&variable_defined ('EXTRA_DIST'))
3341 # FIXME: This should be fixed to work with conditionals. That
3342 # will require only making the entries in %dist_dirs under the
3343 # appropriate condition. This is meaningful if the nature of
3344 # the distribution should depend upon the configure options
3346 foreach (&variable_value_as_list ('EXTRA_DIST', ''))
3349 next unless s,/+[^/]+$,,;
3355 # We have to check DIST_COMMON for extra directories in case the
3356 # user put a source used in AC_OUTPUT into a subdir.
3357 foreach (&variable_value_as_list ('DIST_COMMON', 'all'))
3360 next unless s,/+[^/]+$,,;
3365 # Rule to check whether a distribution is viable.
3366 my %transform = ('DISTCHECK-HOOK' => &target_defined ('distcheck-hook'),
3367 'GETTEXT' => $seen_gettext);
3369 # Prepend $(distdir) to each directory given.
3370 my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
3371 $transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
3373 # If we have SUBDIRS, create all dist subdirectories and do
3375 if (&variable_defined ('SUBDIRS'))
3377 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3378 # to all possible directories, and use it. If DIST_SUBDIRS is
3379 # defined, just use it.
3380 my $dist_subdir_name;
3381 # Note that we check DIST_SUBDIRS first on purpose. At least
3382 # one project uses so many conditional subdirectories that
3383 # calling variable_conditionally_defined on SUBDIRS will cause
3384 # automake to grow to 150Mb. Sigh.
3385 if (&variable_defined ('DIST_SUBDIRS')
3386 || variable_conditionally_defined ('SUBDIRS'))
3388 $dist_subdir_name = 'DIST_SUBDIRS';
3389 if (! &variable_defined ('DIST_SUBDIRS'))
3391 &define_pretty_variable
3392 ('DIST_SUBDIRS', '',
3393 uniq (&variable_value_as_list ('SUBDIRS', 'all')));
3398 $dist_subdir_name = 'SUBDIRS';
3399 # We always define this because that is what `distclean'
3401 &define_pretty_variable ('DIST_SUBDIRS', '', '$(SUBDIRS)');
3404 $transform{'DIST_SUBDIR_NAME'} = $dist_subdir_name;
3407 # If the target `dist-hook' exists, make sure it is run. This
3408 # allows users to do random weird things to the distribution
3409 # before it is packaged up.
3410 push (@dist_targets, 'dist-hook')
3411 if &target_defined ('dist-hook');
3412 $transform{'DIST-TARGETS'} = join(' ', @dist_targets);
3414 # Defining $(DISTDIR).
3415 $transform{'DISTDIR'} = !&variable_defined('distdir');
3416 $transform{'TOP_DISTDIR'} = backname ($relative_dir);
3418 $output_rules .= &file_contents ('distdir', %transform);
3422 # Handle subdirectories.
3426 unless &variable_defined ('SUBDIRS');
3428 # Make sure each directory mentioned in SUBDIRS actually exists.
3429 foreach my $dir (&variable_value_as_list ('SUBDIRS', 'all'))
3431 # Skip directories substituted by configure.
3432 next if $dir =~ /^\@.*\@$/;
3434 if (! -d $am_relative_dir . '/' . $dir)
3436 &am_line_error ('SUBDIRS',
3437 "required directory $am_relative_dir/$dir does not exist");
3441 &am_line_error ('SUBDIRS', "directory should not contain `/'")
3445 $output_rules .= &file_contents ('subdirs');
3446 variable_pretty_output ('RECURSIVE_TARGETS', 'TRUE');
3450 # ($REGEN, @DEPENDENCIES)
3453 # If aclocal.m4 creation is automated, return the list of its dependencies.
3456 my $regen_aclocal = 0;
3459 unless $relative_dir eq '.';
3461 &examine_variable ('CONFIG_STATUS_DEPENDENCIES');
3462 &examine_variable ('CONFIGURE_DEPENDENCIES');
3464 if (-f 'aclocal.m4')
3466 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4');
3467 &push_dist_common ('aclocal.m4');
3469 my $aclocal = new IO::File ("< aclocal.m4");
3472 my $line = $aclocal->getline;
3475 if ($line =~ 'generated automatically by aclocal')
3484 if (-f 'acinclude.m4')
3487 push @ac_deps, 'acinclude.m4';
3490 if (&variable_defined ('ACLOCAL_M4_SOURCES'))
3492 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3494 elsif (&variable_defined ('ACLOCAL_AMFLAGS'))
3496 # Scan all -I directories for m4 files. These are our
3498 my $examine_next = 0;
3499 foreach my $amdir (&variable_value_as_list ('ACLOCAL_AMFLAGS', ''))
3504 if ($amdir !~ /^\// && -d $amdir)
3506 foreach my $ac_dep (&my_glob ($amdir . '/*.m4'))
3508 $ac_dep =~ s/^\.\/+//;
3509 push (@ac_deps, $ac_dep)
3510 unless $ac_dep eq "aclocal.m4"
3511 || $ac_dep eq "acinclude.m4";
3515 elsif ($amdir eq '-I')
3522 # Note that it might be possible that aclocal.m4 doesn't exist but
3523 # should be auto-generated. This case probably isn't very
3526 return ($regen_aclocal, @ac_deps);
3529 # Rewrite a list of input files into a form suitable to put on a
3530 # dependency list. The idea is that if an input file has a directory
3531 # part the same as the current directory, then the directory part is
3532 # simply removed. But if the directory part is different, then
3533 # $(top_srcdir) is prepended. Among other things, this is used to
3534 # generate the dependency list for the output files generated by
3535 # AC_OUTPUT. Consider what the dependencies should look like in this
3537 # AC_OUTPUT(src/out:src/in1:lib/in2)
3538 # The first argument, ADD_SRCDIR, is 1 if $(top_srcdir) should be added.
3539 # If 0 then files that require this addition will simply be ignored.
3540 sub rewrite_inputs_into_dependencies
3542 my ($add_srcdir, @inputs) = @_;
3545 foreach my $single (@inputs)
3547 if (dirname ($single) eq $relative_dir)
3549 push (@newinputs, basename ($single));
3553 push (@newinputs, '$(top_srcdir)/' . $single);
3560 # Handle remaking and configure stuff.
3561 # We need the name of the input file, to do proper remaking rules.
3562 sub handle_configure
3564 my ($local, $input, @secondary_inputs) = @_;
3566 my $input_base = basename ($input);
3567 my $local_base = basename ($local);
3569 my $amfile = $input_base . '.am';
3570 # We know we can always add '.in' because it really should be an
3571 # error if the .in was missing originally.
3572 my $infile = '$(srcdir)/' . $input_base . '.in';
3573 my $colon_infile = '';
3574 if ($local ne $input || @secondary_inputs)
3576 $colon_infile = ':' . $input . '.in';
3578 $colon_infile .= ':' . join (':', @secondary_inputs)
3579 if @secondary_inputs;
3581 my @rewritten = &rewrite_inputs_into_dependencies (1, @secondary_inputs);
3583 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4 ();
3586 &file_contents ('configure',
3590 => join (' ', @rewritten),
3592 => ((($relative_dir eq '.') ? '$@' : '$(subdir)/$@')
3597 => join (' ', @include_stack),
3601 => $cygnus_mode ? 'cygnus' : $strictness_name,
3603 => $cmdline_use_dependencies ? '' : ' --ignore-deps',
3604 'MAKEFILE-AM-SOURCES'
3605 => "$input$colon_infile",
3607 => $regen_aclocal_m4,
3609 => join (' ', @aclocal_m4_deps)));
3611 if ($relative_dir eq '.')
3613 &push_dist_common ('acconfig.h')
3617 # If we have a configure header, require it.
3618 my @local_fullnames = @config_fullnames;
3619 my @local_names = @config_names;
3621 my $distclean_config = '';
3622 foreach my $one_hdr (@config_headers)
3624 my $one_fullname = shift (@local_fullnames);
3625 my $one_name = shift (@local_names);
3627 my $header_dir = dirname ($one_name);
3629 # If the header is in the current directory we want to build
3630 # the header here. Otherwise, if we're at the topmost
3631 # directory and the header's directory doesn't have a
3632 # Makefile, then we also want to build the header.
3633 if ($relative_dir eq $header_dir
3634 || ($relative_dir eq '.' && ! &is_make_dir ($header_dir)))
3636 my ($cn_sans_dir, $stamp_dir);
3637 if ($relative_dir eq $header_dir)
3639 $cn_sans_dir = basename ($one_name);
3644 $cn_sans_dir = $one_name;
3645 if ($header_dir eq '.')
3651 $stamp_dir = $header_dir . '/';
3655 # Compute relative path from directory holding output
3656 # header to directory holding input header. FIXME:
3657 # doesn't handle case where we have multiple inputs.
3659 if (dirname ($one_hdr) eq $relative_dir)
3661 $ch_sans_dir = basename ($one_hdr);
3665 $ch_sans_dir = backname ($relative_dir) . '/' . $one_hdr;
3668 &require_file_with_conf_line ($config_header_line,
3669 $FOREIGN, $ch_sans_dir);
3671 # Header defined and in this directory.
3673 if (-f $one_name . '.top')
3675 push (@files, "${cn_sans_dir}.top");
3677 if (-f $one_name . '.bot')
3679 push (@files, "${cn_sans_dir}.bot");
3682 &push_dist_common (@files);
3684 # For now, acconfig.h can only appear in the top srcdir.
3685 if (-f 'acconfig.h')
3687 push (@files, '$(top_srcdir)/acconfig.h');
3690 my $stamp_name = 'stamp-h';
3691 $stamp_name .= "${hdr_index}" if scalar (@config_headers) > 1;
3693 my $out_dir = dirname ($ch_sans_dir);
3696 &file_contents ('remake-hdr',
3697 ('FILES' => join (' ', @files),
3698 'CONFIG_HEADER' => $cn_sans_dir,
3699 'CONFIG_HEADER_IN' => $ch_sans_dir,
3700 'CONFIG_HEADER_FULL' => $one_fullname,
3701 'STAMP' => "$stamp_dir$stamp_name",
3702 'SRC_STAMP' => "$out_dir/$stamp_name"));
3704 &create ("${relative_dir}/${out_dir}/${stamp_name}.in");
3705 &require_file_with_conf_line ($config_header_line, $FOREIGN,
3706 "${out_dir}/${stamp_name}.in");
3708 $distclean_config .= ' ' if $distclean_config;
3709 $distclean_config .= $cn_sans_dir;
3713 if ($distclean_config)
3715 $output_rules .= &file_contents ('clean-hdr',
3716 ('FILES' => $distclean_config));
3719 # Set location of mkinstalldirs.
3720 &define_variable ('mkinstalldirs',
3721 ('$(SHELL) ' . $config_aux_dir . '/mkinstalldirs'));
3723 &am_line_error ('CONFIG_HEADER',
3724 "`CONFIG_HEADER' is an anachronism; now determined from `$configure_ac'")
3725 if &variable_defined ('CONFIG_HEADER');
3727 my $config_header = '';
3728 foreach my $one_name (@config_names)
3730 # Generate CONFIG_HEADER define.
3732 if ($relative_dir eq dirname ($one_name))
3734 $one_hdr = basename ($one_name);
3738 $one_hdr = "\$(top_builddir)/${one_name}";
3741 $config_header .= ' ' if $config_header;
3742 $config_header .= $one_hdr;
3746 &define_variable ("CONFIG_HEADER", $config_header);
3749 # Now look for other files in this directory which must be remade
3750 # by config.status, and generate rules for them.
3751 my @actual_other_files = ();
3752 foreach my $lfile (@other_input_files)
3755 my (@inputs, @rewritten_inputs);
3756 my ($need_rewritten);
3757 if ($lfile =~ /^([^:]*):(.*)$/)
3759 # This is the ":" syntax of AC_OUTPUT.
3761 $local = basename ($file);
3762 @inputs = split (':', $2);
3763 @rewritten_inputs = &rewrite_inputs_into_dependencies (1, @inputs);
3764 $need_rewritten = 1;
3770 $local = basename ($file);
3771 @inputs = ($file . '.in');
3773 &rewrite_inputs_into_dependencies (1, @inputs);
3774 $need_rewritten = 0;
3777 # Make sure the dist directory for each input file is created.
3778 # We only have to do this at the topmost level though. This
3779 # is a bit ugly but it easier than spreading out the logic,
3780 # especially in cases like AC_OUTPUT(foo/out:bar/in), where
3781 # there is no Makefile in bar/.
3782 if ($relative_dir eq '.')
3786 $dist_dirs{dirname ($_)} = 1;
3790 # We skip any automake input files, as they are handled
3791 # elsewhere. We also skip files that aren't in this
3792 # directory. However, if the file's directory does not have a
3793 # Makefile, and we are currently doing `.', then we create a
3794 # rule to rebuild the file in the subdir.
3795 next if -f $file . '.am';
3796 my $fd = dirname ($file);
3797 if ($fd ne $relative_dir)
3799 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
3809 # Some users have been tempted to put `stamp-h' in the
3810 # AC_OUTPUT line. This won't do the right thing, so we
3811 # explicitly fail here.
3812 if ($local eq 'stamp-h')
3814 # FIXME: allow real filename.
3815 &am_conf_error ($configure_ac, $ac_output_line,
3816 'stamp-h should not appear in AC_OUTPUT');
3820 $output_rules .= ($local . ': '
3821 . '$(top_builddir)/config.status '
3822 . join (' ', @rewritten_inputs) . "\n"
3824 . 'cd $(top_builddir) && CONFIG_FILES='
3825 . ($relative_dir eq '.' ? '' : '$(subdir)/')
3826 . '$@' . ($need_rewritten
3827 ? (':' . join (':', @inputs))
3829 . ' CONFIG_HEADERS= CONFIG_LINKS= $(SHELL) ./config.status'
3831 push (@actual_other_files, $local);
3833 # Require all input files.
3834 &require_file_with_conf_line ($ac_output_line, $FOREIGN,
3835 &rewrite_inputs_into_dependencies (0, @inputs));
3838 # These files get removed by "make clean".
3839 &define_pretty_variable ('CONFIG_CLEAN_FILES', '', @actual_other_files);
3845 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
3846 'oldinclude', 'pkginclude',
3850 next unless /\.(.*)$/;
3851 &saw_extension ($1);
3857 return if ! $seen_gettext || $relative_dir ne '.';
3859 if (! &variable_defined ('SUBDIRS'))
3862 ("AM_GNU_GETTEXT used but SUBDIRS not defined");
3866 my @subdirs = &variable_value_as_list ('SUBDIRS', 'all');
3867 &am_line_error ('SUBDIRS',
3868 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
3869 if ! grep ('po', @subdirs);
3870 &am_line_error ('SUBDIRS',
3871 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
3872 if ! grep ('intl', @subdirs);
3874 &require_file_with_conf_line ($ac_gettext_line, $GNU, 'ABOUT-NLS');
3876 # Ensure that each language in ALL_LINGUAS has a .po file, and
3877 # each po file is mentioned in ALL_LINGUAS.
3880 my %linguas = map { $_ => 1 } split (' ', $all_linguas);
3887 &am_line_error ($all_linguas_line,
3888 ("po/$_.po exists but `$_' not in `ALL_LINGUAS'"))
3892 foreach (keys %linguas)
3894 &am_line_error ($all_linguas_line,
3895 "$_ in `ALL_LINGUAS' but po/$_.po does not exist")
3901 &am_error ("AM_GNU_GETTEXT in `$configure_ac' but `ALL_LINGUAS' not defined");
3905 # Handle footer elements.
3908 # NOTE don't use define_pretty_variable here, because
3909 # $contents{...} is already defined.
3910 $output_vars .= 'SOURCES = ' . variable_value ('SOURCES') . "\n\n"
3911 if variable_value ('SOURCES');
3914 &am_line_error ('.SUFFIXES',
3915 "use variable `SUFFIXES', not target `.SUFFIXES'")
3916 if target_defined ('.SUFFIXES');
3918 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
3919 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
3920 # anything else, by sticking it right after the default: target.
3921 $output_header .= ".SUFFIXES:\n";
3922 if (@suffixes || &variable_defined ('SUFFIXES'))
3924 # Make sure suffixes has unique elements. Sort them to ensure
3925 # the output remains consistent. However, $(SUFFIXES) is
3926 # always at the start of the list, unsorted. This is done
3927 # because make will choose rules depending on the ordering of
3928 # suffixes, and this lets the user have some control. Push
3929 # actual suffixes, and not $(SUFFIXES). Some versions of make
3930 # do not like variable substitutions on the .SUFFIXES line.
3931 my @user_suffixes = (&variable_defined ('SUFFIXES')
3932 ? &variable_value_as_list ('SUFFIXES', '')
3935 my %suffixes = map { $_ => 1 } @suffixes;
3936 delete @suffixes{@user_suffixes};
3938 $output_header .= (".SUFFIXES: "
3939 . join (' ', @user_suffixes, sort keys %suffixes)
3943 $output_trailer .= file_contents ('footer');
3946 # Deal with installdirs target.
3947 sub handle_installdirs ()
3950 &file_contents ('install',
3952 => variable_value ('_am_installdirs') || ''));
3956 # Deal with all and all-am.
3959 my ($makefile) = @_;
3963 # Put this at the beginning for the sake of non-GNU makes. This
3964 # is still wrong if these makes can run parallel jobs. But it is
3966 unshift (@all, basename ($makefile));
3968 foreach my $one_name (@config_names)
3970 push (@all, basename ($one_name))
3971 if dirname ($one_name) eq $relative_dir;
3974 # Install `all' hooks.
3975 if (&target_defined ("all-local"))
3977 push (@all, "all-local");
3978 &depend ('.PHONY', "all-local");
3981 &pretty_print_rule ("all-am:", "\t\t", @all);
3982 &depend ('.PHONY', 'all-am', 'all');
3987 my @local_headers = ();
3988 push @local_headers, '$(BUILT_SOURCES)'
3989 if &variable_defined ('BUILT_SOURCES');
3990 foreach my $one_name (@config_names)
3992 push @local_headers, basename ($one_name)
3993 if dirname ($one_name) eq $relative_dir;
3998 # We need to make sure config.h is built before we recurse.
3999 # We also want to make sure that built sources are built
4000 # before any ordinary `all' targets are run. We can't do this
4001 # by changing the order of dependencies to the "all" because
4002 # that breaks when using parallel makes. Instead we handle
4003 # things explicitly.
4004 $output_all .= ("all: " . join (' ', @local_headers)
4006 . '$(MAKE) $(AM_MAKEFLAGS) '
4007 . (&variable_defined ('SUBDIRS')
4008 ? 'all-recursive' : 'all-am')
4013 $output_all .= "all: " . (&variable_defined ('SUBDIRS')
4014 ? 'all-recursive' : 'all-am') . "\n\n";
4019 # Handle check merge target specially.
4020 sub do_check_merge_target
4022 if (&target_defined ('check-local'))
4024 # User defined local form of target. So include it.
4025 push (@check_tests, 'check-local');
4026 &depend ('.PHONY', 'check-local');
4029 # In --cygnus mode, check doesn't depend on all.
4032 # Just run the local check rules.
4033 &pretty_print_rule ('check-am:', "\t\t", @check);
4037 # The check target must depend on the local equivalent of
4038 # `all', to ensure all the primary targets are built. Then it
4039 # must build the local check rules.
4040 $output_rules .= "check-am: all-am\n";
4041 &pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4045 &pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4049 &depend ('.PHONY', 'check', 'check-am');
4050 $output_rules .= ("check: "
4051 . (&variable_defined ('SUBDIRS')
4052 ? 'check-recursive' : 'check-am')
4056 # Handle all 'clean' targets.
4061 # Don't include `MAINTAINER'; it is handled specially below.
4062 foreach my $name ('MOSTLY', '', 'DIST')
4064 $transform{"${name}CLEAN"} = &variable_defined ("${name}CLEANFILES");
4067 # Built sources are automatically removed by maintainer-clean.
4068 push (@maintainer_clean_files, '$(BUILT_SOURCES)')
4069 if &variable_defined ('BUILT_SOURCES');
4070 push (@maintainer_clean_files, '$(MAINTAINERCLEANFILES)')
4071 if &variable_defined ('MAINTAINERCLEANFILES');
4073 $output_rules .= &file_contents ('clean',
4076 # Join with no space to avoid
4077 # spurious `test -z' success at
4079 => join ('', @maintainer_clean_files),
4081 # A space is required in the join here.
4082 => join (' ', @maintainer_clean_files)));
4086 # &depend ($CATEGORY, @DEPENDENDEES)
4087 # ----------------------------------
4088 # The target $CATEGORY depends on @DEPENDENDEES.
4091 my ($category, @dependendees) = @_;
4093 push (@{$dependencies{$category}}, @dependendees);
4098 # &target_cmp ($A, $B)
4099 # --------------------
4100 # Subroutine for &handle_factored_dependencies to let `.PHONY' be last.
4113 # &handle_factored_dependencies ()
4114 # --------------------------------
4115 # Handle everything related to gathered targets.
4116 sub handle_factored_dependencies
4119 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4120 'uninstall-exec-local', 'uninstall-exec-hook')
4122 if (&target_defined ($utarg))
4125 $x =~ s/(data|exec)-//;
4126 &am_line_error ($utarg, "use `$x', not `$utarg'");
4130 if (&target_defined ('install-local'))
4132 &am_line_error ('install-local',
4133 "use `install-data-local' or `install-exec-local', "
4134 . "not `install-local'");
4137 if (!defined $options{'no-installinfo'}
4138 && &target_defined ('install-info-local'))
4140 &am_line_error ('install-info-local',
4141 "`install-info-local' target defined but "
4142 . "`no-installinfo' option not in use");
4145 # Install the -local hooks.
4146 foreach (keys %dependencies)
4148 # Hooks are installed on the -am targets.
4150 if (&target_defined ("$_-local"))
4152 depend ("$_-am", "$_-local");
4153 &depend ('.PHONY', "$_-local");
4157 # Install the -hook hooks.
4158 # FIXME: Why not be as liberal as we are with -local hooks?
4159 foreach ('install-exec', 'install-data')
4161 if (&target_defined ("$_-hook"))
4163 $actions{"$_-am"} .=
4164 ("\t\@\$(NORMAL_INSTALL)\n"
4165 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4169 # All the required targets are phony.
4170 depend ('.PHONY', keys %required_targets);
4172 # Actually output gathered targets.
4173 foreach (sort target_cmp keys %dependencies)
4175 # If there is nothing about this guy, skip it.
4177 unless (@{$dependencies{$_}}
4179 || $required_targets{$_});
4180 &pretty_print_rule ("$_:", "\t",
4181 uniq (sort @{$dependencies{$_}}));
4182 $output_rules .= $actions{$_}
4183 if defined $actions{$_};
4184 $output_rules .= "\n";
4189 # &handle_tests_dejagnu ()
4190 # ------------------------
4191 sub handle_tests_dejagnu
4193 push (@check_tests, 'check-DEJAGNU');
4195 # Only create site.exp rule if user hasn't already written one.
4197 file_contents ('dejagnu', ('SITE-EXP' => ! target_defined ('site.exp')));
4201 # Handle TESTS variable and other checks.
4204 if (defined $options{'dejagnu'})
4206 &handle_tests_dejagnu;
4210 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4213 "`$c' defined but `dejagnu' not in `AUTOMAKE_OPTIONS'")
4214 if &variable_defined ($c);
4218 if (&variable_defined ('TESTS'))
4220 push (@check_tests, 'check-TESTS');
4221 $output_rules .= &file_contents ('check');
4225 # Handle Emacs Lisp.
4226 sub handle_emacs_lisp
4228 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4231 return if ! @elfiles;
4233 # Generate .elc files.
4234 my @elcfiles = map { $_ . 'c' } @elfiles;
4235 &define_pretty_variable ('ELCFILES', '', @elcfiles);
4237 push (@all, '$(ELCFILES)');
4239 &am_error ("`lisp_LISP' defined but `AM_PATH_LISPDIR' not in `$configure_ac'")
4240 if ! $seen_lispdir && &variable_defined ('lisp_LISP');
4242 &require_file_with_conf_line ('AM_PATH_LISPDIR', $FOREIGN, 'elisp-comp');
4248 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4249 'python', 'noinst');
4250 return if ! @pyfiles;
4252 # Found some python.
4253 &am_error ("`python_PYTHON' defined but `AM_PATH_PYTHON' not in `$configure_ac'")
4254 if ! $seen_pythondir && &variable_defined ('python_PYTHON');
4256 &require_file_with_conf_line ('AM_PATH_PYTHON', $FOREIGN, 'py-compile');
4257 &define_variable ('py_compile', $config_aux_dir . '/py-compile');
4263 my @sourcelist = &am_install_var ('-candist',
4265 'java', 'noinst', 'check');
4266 return if ! @sourcelist;
4268 my %valid = &am_primary_prefixes ('JAVA', 1,
4269 'java', 'noinst', 'check');
4272 foreach my $curs (keys %valid)
4274 if (! &variable_defined ($curs . '_JAVA') || $curs eq 'EXTRA')
4281 &am_line_error ($curs . '_JAVA',
4282 "multiple _JAVA primaries in use");
4287 push (@all, 'class' . $dir . '.stamp');
4291 # Handle some of the minor options.
4292 sub handle_minor_options
4294 if (defined $options{'readme-alpha'})
4296 if ($relative_dir eq '.')
4298 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4300 # FIXME: allow real filename.
4301 &am_conf_line_error ($configure_ac,
4302 $package_version_line,
4303 "version `$package_version' doesn't follow Gnits standards");
4305 elsif (defined $1 && -f 'README-alpha')
4307 # This means we have an alpha release. See
4308 # GNITS_VERSION_PATTERN for details.
4309 &require_file ($FOREIGN, 'README-alpha');
4315 ################################################################
4318 my @make_input_list;
4319 # &scan_autoconf_config_files ($CONFIG-FILES)
4320 # -------------------------------------------
4321 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4323 sub scan_autoconf_config_files
4325 my ($config_files) = @_;
4326 # Look at potential Makefile.am's.
4327 foreach (split ' ', $config_files)
4329 # Must skip empty string for Perl 4.
4330 next if $_ eq "\\" || $_ eq '';
4332 # Handle $local:$input syntax. Note that we ignore
4333 # every input file past the first, though we keep
4334 # those around for later.
4335 my ($local, $input, @rest) = split (/:/);
4342 # FIXME: should be error if .in is missing.
4343 $input =~ s/\.in$//;
4346 if (-f $input . '.am')
4348 # We have a file that automake should generate.
4349 push (@make_input_list, $input);
4350 $make_list{$input} = join (':', ($local, @rest));
4354 # We have a file that automake should cause to be
4355 # rebuilt, but shouldn't generate itself.
4356 push (@other_input_files, $_);
4362 # &scan_autoconf_traces ($FILENAME)
4363 # ---------------------------------
4364 # FIXME: For the time being, we don't care about the FILENAME.
4365 sub scan_autoconf_traces
4367 my ($filename) = @_;
4369 my $traces = "$ENV{amtraces} ";
4371 $traces .= ' -t AC_CONFIG_FILES';
4372 $traces .= ' -t AC_LIBSOURCE';
4373 $traces .= ' -t AC_SUBST';
4375 my $tracefh = new IO::File ("$traces |");
4378 die "$me: couldn't open `$traces': $!\n";
4380 print "$me: reading $traces\n" if $verbose;
4382 while ($_ = $tracefh->getline)
4385 my ($file, $line, $macro, @args) = split /:/;
4386 my $here = "$file:$line";
4388 # Alphabetical ordering please.
4389 if ($macro eq 'AC_CONFIG_FILES')
4391 # Look at potential Makefile.am's.
4392 &scan_autoconf_config_files ($args[0]);
4394 elsif ($macro eq 'AC_LIBSOURCE')
4396 my $source = "$args[0].c";
4397 # We should actually also `close' the sources: getopt.c
4398 # wants getopt.h etc. But actually it should be done in the
4399 # macro itself, i.e., we have to first fix Autoconf to extend
4400 # _AC_LIBOBJ_DECL and use it the in various macros.
4401 if (!defined $libsources{$source})
4403 print STDERR "traces: discovered $source\n";
4404 $libsources{$source} = $here;
4407 elsif ($macro eq 'AC_SUBST')
4409 if (!defined $configure_vars{$args[0]})
4411 print STDERR "traces: discovered AC_SUBST($args[0])\n";
4412 $configure_vars{$args[0]} = $here;
4418 || die "$me: close: $traces: $!\n";
4422 # &scan_one_autoconf_file ($FILENAME)
4423 # -----------------------------------
4424 # Scan one file for interesting things. Subroutine of
4425 # &scan_autoconf_files.
4426 sub scan_one_autoconf_file
4428 my ($filename) = @_;
4430 my $configfh = new IO::File ("< $filename");
4433 die "$me: couldn't open `$filename': $!\n";
4435 print "$me: reading $filename\n" if $verbose;
4437 my ($in_ac_output, $in_ac_replace) = (0, 0);
4438 while ($_ = $configfh->getline)
4440 # Remove comments from current line.
4444 # Skip macro definitions. Otherwise we might be confused into
4445 # thinking that a macro that was only defined was actually
4449 # Follow includes. This is a weirdness commonly in use at
4450 # Cygnus and hopefully nowhere else.
4451 if (/sinclude\((.*)\)/ && -f $1)
4453 # $_ being local, if we don't preserve it, when coming
4454 # back we will have $_ undefined, which is bad for the
4455 # the rest of this routine.
4456 my $underscore = $_;
4457 &scan_one_autoconf_file ($1);
4461 # Populate libobjs array.
4462 if (/AC_FUNC_ALLOCA/)
4464 $libsources{'alloca.c'} = 1;
4466 elsif (/AC_FUNC_GETLOADAVG/)
4468 $libsources{'getloadavg.c'} = 1;
4470 elsif (/AC_FUNC_MEMCMP/)
4472 $libsources{'memcmp.c'} = 1;
4474 elsif (/AC_STRUCT_ST_BLOCKS/)
4476 $libsources{'fileblocks.c'} = 1;
4478 elsif (/A[CM]_REPLACE_GNU_GETOPT/)
4480 $libsources{'getopt.c'} = 1;
4481 $libsources{'getopt1.c'} = 1;
4483 elsif (/AM_FUNC_STRTOD/)
4485 $libsources{'strtod.c'} = 1;
4487 elsif (/AM_WITH_REGEX/)
4489 $libsources{'rx.c'} = 1;
4490 $libsources{'rx.h'} = 1;
4491 $libsources{'regex.c'} = 1;
4492 $libsources{'regex.h'} = 1;
4494 elsif (/AC_FUNC_MKTIME/)
4496 $libsources{'mktime.c'} = 1;
4498 elsif (/AM_FUNC_ERROR_AT_LINE/)
4500 $libsources{'error.c'} = 1;
4501 $libsources{'error.h'} = 1;
4503 elsif (/AM_FUNC_OBSTACK/)
4505 $libsources{'obstack.c'} = 1;
4506 $libsources{'obstack.h'} = 1;
4508 elsif (/LIBOBJS="(.*)\s+\$LIBOBJS"/
4509 || /LIBOBJS="\$LIBOBJS\s+(.*)"/)
4511 foreach my $libobj_iter (split (' ', $1))
4513 if ($libobj_iter =~ /^(.*)\.o(bj)?$/
4514 || $libobj_iter =~ /^(.*)\.\$ac_objext$/
4515 || $libobj_iter =~ /^(.*)\.\$\{ac_objext\}$/)
4517 $libsources{$1 . '.c'} = 1;
4521 elsif (/AC_LIBOBJ\(([^)]+)\)/)
4523 $libsources{"$1.c"} = 1;
4526 if (! $in_ac_replace && s/AC_REPLACE_FUNCS\s*\(\[?//)
4532 $in_ac_replace = 0 if s/[\]\)].*$//;
4533 # Remove trailing backslash.
4537 # Need to skip empty elements for Perl 4.
4539 $libsources{$_ . '.c'} = 1;
4543 if (/$obsolete_rx/o)
4546 if ($obsolete_macros{$1} ne '')
4548 $hint = '; ' . $obsolete_macros{$1};
4550 &am_conf_line_error ($filename, $., "`$1' is obsolete$hint");
4553 # Process the AC_OUTPUT and AC_CONFIG_FILES macros.
4554 if (! $in_ac_output && s/AC_(OUTPUT|CONFIG_FILES)\s*\(\[?//)
4557 $ac_output_line = $.;
4568 # Look at potential Makefile.am's.
4569 &scan_autoconf_config_files ($_);
4571 if ($closing && @make_input_list == 0 && @other_input_files == 0)
4573 &am_conf_line_error ($filename, $ac_output_line,
4574 "No files mentioned in `AC_OUTPUT'");
4579 if (/$AC_CONFIG_AUX_DIR_PATTERN/o)
4581 @config_aux_path = &unquote_m4_arg ($1);
4582 $config_aux_dir_set_in_configure_in = 1;
4585 # Check for ansi2knr.
4586 $am_c_prototypes = 1 if /AM_C_PROTOTYPES/;
4588 # Check for exe extension stuff.
4592 $configure_vars{'EXEEXT'} = $filename . ':' . $.;
4598 $configure_vars{'OBJEXT'} = $filename . ':' . $.;
4601 # Check for `-c -o' code.
4602 $seen_cc_c_o = 1 if /AM_PROG_CC_C_O/;
4604 # Check for NLS support.
4605 if (/AM_GNU_GETTEXT/)
4608 $ac_gettext_line = $.;
4611 # Look for ALL_LINGUAS.
4612 if (/ALL_LINGUAS="(.*)"$/ || /ALL_LINGUAS=(.*)$/)
4616 $all_linguas_line = $.;
4619 # Handle configuration headers. A config header of `[$1]'
4620 # means we are actually scanning AM_CONFIG_HEADER from
4622 if (/A([CM])_CONFIG_HEADERS?\s*\((.*)\)/
4626 ($filename, $., "`automake requires `AM_CONFIG_HEADER', not `AC_CONFIG_HEADER'")
4629 $config_header_line = $.;
4630 foreach my $one_hdr (split (' ', &unquote_m4_arg ($2)))
4632 push (@config_fullnames, $one_hdr);
4633 if ($one_hdr =~ /^([^:]+):(.+)$/)
4635 push (@config_names, $1);
4636 push (@config_headers, $2);
4640 push (@config_names, $one_hdr);
4641 push (@config_headers, $one_hdr . '.in');
4646 # Handle AC_CANONICAL_*. Always allow upgrading to
4647 # AC_CANONICAL_SYSTEM, but never downgrading.
4648 $seen_canonical = $AC_CANONICAL_HOST
4649 if ! $seen_canonical
4650 && (/AC_CANONICAL_HOST/ || /AC_CHECK_TOOL/);
4651 $seen_canonical = $AC_CANONICAL_SYSTEM if /AC_CANONICAL_SYSTEM/;
4653 # If using X, include some extra variable definitions. NOTE
4654 # we don't want to force these into CFLAGS or anything,
4655 # because not all programs will necessarily use X.
4658 foreach my $var ('X_CFLAGS', 'X_LIBS', 'X_EXTRA_LIBS',
4661 $configure_vars{$var} = $filename . ':' . $.
4665 # This macro handles several different things.
4666 if (/$AM_INIT_AUTOMAKE_PATTERN/o)
4668 ($package_version = $1) =~ s/$AM_PACKAGE_VERSION_PATTERN/$1/o;
4669 $package_version_line = $.;
4670 $seen_init_automake = 1;
4675 $configure_vars{'LEX'} = $filename . ':' . $.;
4676 $seen_decl_yytext = 1;
4678 if (/AC_DECL_YYTEXT/ && $filename =~ /configure\.(ac|in)$/)
4680 &am_conf_line_warning ($filename, $., "`AC_DECL_YYTEXT' is covered by `AM_PROG_LEX'");
4682 if (/AC_PROG_LEX/ && $filename =~ /configure\.(ac|in)$/)
4684 &am_conf_line_warning ($filename, $., "automake requires `AM_PROG_LEX', not `AC_PROG_LEX'");
4687 if (/AC_PROG_(F77|YACC|RANLIB|CC|CXXCPP|CXX|LEX|AWK|CPP|LN_S)/)
4689 $configure_vars{$1} = $filename . ':' . $.;
4691 if (/$AC_CHECK_PATTERN/o)
4693 $configure_vars{$3} = $filename . ':' . $.;
4695 if (/$AM_MISSING_PATTERN/o
4699 && $1 ne 'AUTOHEADER'
4700 # AM_INIT_AUTOMAKE is AM_MISSING_PROG'ing MAKEINFO. But
4701 # we handle it elsewhere.
4702 && $1 ne 'MAKEINFO')
4704 $configure_vars{$1} = $filename . ':' . $.;
4707 # Explicitly avoid ANSI2KNR -- we AC_SUBST that in protos.m4,
4708 # but later define it elsewhere. This is pretty hacky. We
4709 # also explicitly avoid INSTALL_SCRIPT and some other
4710 # variables because they are defined in header-vars.am.
4712 if (/$AC_SUBST_PATTERN/o
4714 && $1 ne 'INSTALL_SCRIPT'
4715 && $1 ne 'INSTALL_DATA')
4717 $configure_vars{$1} = $filename . ':' . $.;
4720 $seen_decl_yytext = 1 if /AC_DECL_YYTEXT/;
4721 if (/AM_MAINTAINER_MODE/)
4723 $seen_maint_mode = 1;
4724 $configure_cond{'MAINTAINER_MODE'} = 1;
4727 $seen_lispdir = 1 if /AM_PATH_LISPDIR/;
4729 if (/AM_PATH_PYTHON/)
4731 $seen_pythondir = 1;
4732 $configure_vars{'pythondir'} = $filename . ':' . $.;
4733 $configure_vars{'PYTHON'} = $filename . ':' . $.;
4736 if (/A(C|M)_PROG_LIBTOOL/)
4738 # We're not ready for this yet. People still use a
4739 # libtool with no AC_PROG_LIBTOOL. Once that is the
4740 # dominant version we can reenable this code -- but next
4741 # time by mentioning the macro in %obsolete_macros, both
4742 # here and in aclocal.in.
4744 # if (/AM_PROG_LIBTOOL/)
4746 # &am_conf_line_warning ($filename, $., "`AM_PROG_LIBTOOL' is obsolete, use `AC_PROG_LIBTOOL' instead");
4750 $configure_vars{'LIBTOOL'} = $filename . ':' . $.;
4751 $configure_vars{'RANLIB'} = $filename . ':' . $.;
4752 $configure_vars{'CC'} = $filename . ':' . $.;
4753 # AC_PROG_LIBTOOL runs AC_CANONICAL_HOST. Make sure we
4754 # never downgrade (if we've seen AC_CANONICAL_SYSTEM).
4755 $seen_canonical = $AC_CANONICAL_HOST if ! $seen_canonical;
4758 $seen_multilib = 1 if (/AM_ENABLE_MULTILIB/);
4760 if (/$AM_CONDITIONAL_PATTERN/o)
4762 $configure_cond{$1} = 1;
4765 # Check for Fortran 77 intrinsic and run-time libraries.
4766 if (/AC_F77_LIBRARY_LDFLAGS/)
4768 $configure_vars{'FLIBS'} = $filename . ':' . $.;
4776 # &scan_autoconf_files ()
4777 # -----------------------
4778 # Check whether we use `configure.ac' or `configure.in'.
4779 # Scan it (and possibly `aclocal.m4') for interesting things.
4780 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
4781 sub scan_autoconf_files
4783 # Reinitialize libsources here. This isn't really necessary,
4784 # since we currently assume there is only one configure.ac. But
4785 # that won't always be the case.
4788 warn "$me: both `configure.ac' and `configure.in' present:"
4789 . " ignoring `configure.in'\n"
4790 if -f 'configure.ac' && -f 'configure.in';
4791 $configure_ac = 'configure.in'
4792 if -f 'configure.in';
4793 $configure_ac = 'configure.ac'
4794 if -f 'configure.ac';
4795 die "$me: `configure.ac' or `configure.in' is required\n"
4798 &scan_one_autoconf_file ($configure_ac);
4799 &scan_one_autoconf_file ('aclocal.m4')
4802 if (defined $ENV{'amtraces'})
4804 warn '$me: Autoconf traces is an experimental feature';
4805 warn '$me: use at your own risks';
4807 &scan_autoconf_traces ($configure_ac);
4810 # Set input and output files if not specified by user.
4813 @input_files = @make_input_list;
4814 %output_files = %make_list;
4817 @configure_input_files = @make_input_list;
4819 &am_conf_error ("`AM_INIT_AUTOMAKE' must be used")
4820 if ! $seen_init_automake;
4822 # Look for some files we need. Always check for these. This
4823 # check must be done for every run, even those where we are only
4824 # looking at a subdir Makefile. We must set relative_dir so that
4825 # the file-finding machinery works.
4826 # FIXME: Is this broken because it needs dynamic scopes.
4827 # My tests seems to show it's not the case.
4828 $relative_dir = '.';
4829 &require_config_file ($FOREIGN, 'install-sh', 'mkinstalldirs', 'missing');
4830 &am_error ("`install.sh' is an anachronism; use `install-sh' instead")
4831 if -f $config_aux_path[0] . '/install.sh';
4833 &require_config_file ($FOREIGN, 'py-compile')
4836 # Preserve dist_common for later.
4837 $configure_dist_common = variable_value ('DIST_COMMON', 'TRUE') || '';
4840 ################################################################
4842 # Set up for Cygnus mode.
4845 return unless $cygnus_mode;
4847 &set_strictness ('foreign');
4848 $options{'no-installinfo'} = 1;
4849 $options{'no-dependencies'} = 1;
4850 $use_dependencies = 0;
4852 if (! $seen_maint_mode)
4854 &am_conf_error ("`AM_MAINTAINER_MODE' required when --cygnus specified");
4858 # Do any extra checking for GNU standards.
4859 sub check_gnu_standards
4861 if ($relative_dir eq '.')
4863 # In top level (or only) directory.
4864 &require_file ($GNU, 'INSTALL', 'NEWS', 'README', 'COPYING',
4865 'AUTHORS', 'ChangeLog');
4868 if ($strictness >= $GNU
4869 && defined $options{'no-installman'})
4871 &am_line_error ('AUTOMAKE_OPTIONS',
4872 "option `no-installman' disallowed by GNU standards");
4875 if ($strictness >= $GNU
4876 && defined $options{'no-installinfo'})
4878 &am_line_error ('AUTOMAKE_OPTIONS',
4879 "option `no-installinfo' disallowed by GNU standards");
4883 # Do any extra checking for GNITS standards.
4884 sub check_gnits_standards
4886 if ($relative_dir eq '.')
4888 # In top level (or only) directory.
4889 &require_file ($GNITS, 'THANKS');
4893 ################################################################
4895 # Functions to handle files of each language.
4897 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
4898 # simple formula: Return value is $LANG_SUBDIR if the resulting object
4899 # file should be in a subdir if the source file is, $LANG_PROCESS if
4900 # file is to be dealt with, $LANG_IGNORE otherwise.
4902 # Much of the actual processing is handled in
4903 # handle_single_transform_list. These functions exist so that
4904 # auxiliary information can be recorded for a later cleanup pass.
4905 # Note that the calls to these functions are computed, so don't bother
4906 # searching for their precise names in the source.
4908 # This is just a convenience function that can be used to determine
4909 # when a subdir object should be used.
4912 return defined $options{'subdir-objects'} ? $LANG_SUBDIR : $LANG_PROCESS;
4915 # Rewrite a single C source file.
4918 my ($directory, $base, $ext) = @_;
4920 if (defined $options{'ansi2knr'} && $base =~ /_$/)
4922 # FIXME: include line number in error.
4923 &am_error ("C source file `$base.c' would be deleted by ansi2knr rules");
4926 my $r = $LANG_PROCESS;
4927 if (defined $options{'subdir-objects'})
4930 $base = $directory . '/' . $base;
4934 # Only give error once.
4936 # FIXME: line number.
4937 &am_error ("C objects in subdir but `AM_PROG_CC_C_O' not in `$configure_ac'");
4940 &require_config_file ($FOREIGN, 'compile');
4943 $de_ansi_files{$base} = 1;
4947 # Rewrite a single C++ source file.
4948 sub lang_cxx_rewrite
4950 return &lang_sub_obj;
4953 # Rewrite a single header file.
4954 sub lang_header_rewrite
4956 # Header files are simply ignored.
4957 return $LANG_IGNORE;
4960 # Rewrite a single yacc file.
4961 sub lang_yacc_rewrite
4963 my ($directory, $base, $ext) = @_;
4965 my $r = &lang_sub_obj;
4966 (my $newext = $ext) =~ tr/y/c/;
4967 return ($r, $newext);
4970 # Rewrite a single yacc++ file.
4971 sub lang_yaccxx_rewrite
4973 my ($directory, $base, $ext) = @_;
4975 my $r = &lang_sub_obj;
4976 (my $newext = $ext) =~ tr/y/c/;
4977 return ($r, $newext);
4980 # Rewrite a single lex file.
4981 sub lang_lex_rewrite
4983 my ($directory, $base, $ext) = @_;
4985 my $r = &lang_sub_obj;
4986 (my $newext = $ext) =~ tr/l/c/;
4987 return ($r, $newext);
4990 # Rewrite a single lex++ file.
4991 sub lang_lexxx_rewrite
4993 my ($directory, $base, $ext) = @_;
4995 my $r = &lang_sub_obj;
4996 (my $newext = $ext) =~ tr/l/c/;
4997 return ($r, $newext);
5000 # Rewrite a single assembly file.
5001 sub lang_asm_rewrite
5003 return &lang_sub_obj;
5006 # Rewrite a single Fortran 77 file.
5007 sub lang_f77_rewrite
5009 return $LANG_PROCESS;
5012 # Rewrite a single preprocessed Fortran 77 file.
5013 sub lang_ppf77_rewrite
5015 return $LANG_PROCESS;
5018 # Rewrite a single ratfor file.
5019 sub lang_ratfor_rewrite
5021 return $LANG_PROCESS;
5024 # Rewrite a single Objective C file.
5025 sub lang_objc_rewrite
5027 return &lang_sub_obj;
5030 # Rewrite a single Java file.
5031 sub lang_java_rewrite
5033 return $LANG_SUBDIR;
5036 # The lang_X_finish functions are called after all source file
5037 # processing is done. Each should handle defining rules for the
5038 # language, etc. A finish function is only called if a source file of
5039 # the appropriate type has been seen.
5043 # Push all libobjs files onto de_ansi_files. We actually only
5044 # push files which exist in the current directory, and which are
5045 # genuine source files.
5046 foreach my $file (keys %libsources)
5048 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5050 $de_ansi_files{$1} = 1;
5054 if (defined $options{'ansi2knr'} && keys %de_ansi_files)
5056 # Make all _.c files depend on their corresponding .c files.
5058 foreach my $base (sort keys %de_ansi_files)
5060 # Each _.c file must depend on ansi2knr; otherwise it
5061 # might be used in a parallel build before it is built.
5062 # We need to support files in the srcdir and in the build
5063 # dir (because these files might be auto-generated. But
5064 # we can't use $< -- some makes only define $< during a
5066 $output_rules .= ($base . "_.c: $base.c \$(ANSI2KNR)\n\t"
5067 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5068 . '`if test -f $(srcdir)/' . $base . '.c'
5069 . '; then echo $(srcdir)/' . $base . '.c'
5070 . '; else echo ' . $base . '.c; fi` '
5071 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5072 . '| $(ANSI2KNR) > ' . $base . "_.c"
5073 # If ansi2knr fails then we shouldn't
5074 # create the _.c file
5075 . " || rm -f ${base}_.c\n");
5076 push (@objects, $base . '_.$(OBJEXT)');
5077 push (@objects, $base . '_.lo')
5081 # Make all _.o (and _.lo) files depend on ansi2knr.
5082 # Use a sneaky little hack to make it print nicely.
5083 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5087 # This is a yacc helper which is called whenever we have decided to
5088 # compile a yacc file.
5089 sub lang_yacc_target_hook
5091 my ($self, $aggregate, $output, $input) = @_;
5093 my $flag = $aggregate . "_YFLAGS";
5094 if ((&variable_defined ($flag)
5095 && &variable_value ($flag) =~ /$DASH_D_PATTERN/o)
5096 || (&variable_defined ('YFLAGS')
5097 && &variable_value ('YFLAGS') =~ /$DASH_D_PATTERN/o))
5099 (my $output_base = $output) =~ s/\..*$//;
5100 my $header = $output_base . '.h';
5102 # Found a `-d' that applies to the compilation of this file.
5103 # Add a dependency for the generated header file, and arrange
5104 # for that file to be included in the distribution.
5105 # FIXME: this fails for `nodist_*_SOURCES'.
5106 $output_rules .= "${header}: $input\n";
5107 &push_dist_common ($header);
5108 # If the files are built in the build directory, then we want
5109 # to remove them with `make clean'. If they are in srcdir
5110 # they shouldn't be touched. However, we can't determine this
5111 # statically, and the GNU rules say that yacc/lex output files
5112 # should be removed by maintainer-clean. So that's what we
5114 push (@maintainer_clean_files, $header);
5118 # This is a helper for both lex and yacc.
5119 sub yacc_lex_finish_helper
5121 return if defined $language_scratch{'lex-yacc-done'};
5122 $language_scratch{'lex-yacc-done'} = 1;
5124 # If there is more than one distinct yacc (resp lex) source file
5125 # in a given directory, then the `ylwrap' program is required to
5126 # allow parallel builds to work correctly. FIXME: for now, no
5128 &require_config_file ($FOREIGN, 'ylwrap');
5129 if ($config_aux_dir_set_in_configure_in)
5131 &define_variable ('YLWRAP', $config_aux_dir . "/ylwrap");
5135 &define_variable ('YLWRAP', '$(top_srcdir)/ylwrap');
5139 sub lang_yacc_finish
5141 return if defined $language_scratch{'yacc-done'};
5142 $language_scratch{'yacc-done'} = 1;
5144 if (&variable_defined ('YACCFLAGS'))
5146 &am_line_error ('YACCFLAGS',
5147 "`YACCFLAGS' obsolete; use `YFLAGS' instead");
5150 if (count_files_for_language ('yacc') > 1)
5152 &yacc_lex_finish_helper;
5159 return if defined $language_scratch{'lex-done'};
5160 $language_scratch{'lex-done'} = 1;
5162 if (! $seen_decl_yytext)
5164 &am_error ("lex source seen but `AC_DECL_YYTEXT' not in `$configure_ac'");
5167 if (count_files_for_language ('lex') > 1)
5169 &yacc_lex_finish_helper;
5174 # Given a hash table of linker names, pick the name that has the most
5175 # precedence. This is lame, but something has to have global
5176 # knowledge in order to eliminate the conflict. Add more linkers as
5183 if defined $linkers{'GCJLINK'};
5185 if defined $linkers{'CXXLINK'};
5187 if defined $linkers{'F77LINK'};
5189 if defined $linkers{'OBJCLINK'};
5193 # Called to indicate that an extension was used.
5197 if (! defined $extension_seen{$ext})
5199 $extension_seen{$ext} = 1;
5203 ++$extension_seen{$ext};
5207 # Return the number of files seen for a given language. Knows about
5208 # special cases we care about. FIXME: this is hideous. We need
5209 # something that involves real language objects. For instance yacc
5210 # and yaccxx could both derive from a common yacc class which would
5211 # know about the strange ylwrap requirement. (Or better yet we could
5212 # just not support legacy yacc!)
5213 sub count_files_for_language
5218 if ($name eq 'yacc' || $name eq 'yaccxx')
5220 @names = ('yacc', 'yaccxx');
5222 elsif ($name eq 'lex' || $name eq 'lexxx')
5224 @names = ('lex', 'lexxx');
5232 foreach $name (@names)
5234 my $lang = $languages{$name};
5235 foreach my $ext (@{$lang->extensions})
5237 $r += $extension_seen{$ext}
5238 if defined $extension_seen{$ext};
5245 # Called to ask whether source files have been seen . If HEADERS is 1,
5246 # headers can be included.
5251 # count all the sources
5253 foreach my $val (values %extension_seen)
5260 $count -= count_files_for_language ('header');
5267 # register_language (%ATTRIBUTE)
5268 # ------------------------------
5269 # Register a single language.
5270 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5271 sub register_language (%)
5277 unless defined $option{'ansi'};
5278 $option{'autodep'} = 'no'
5279 unless defined $option{'autodep'};
5280 $option{'linker'} = ''
5281 unless defined $option{'linker'};
5282 $option{'define_flag'} = 1
5283 unless defined $option{'define_flag'};
5285 my $lang = new Language (%option);
5288 grep ($extension_map{$_} = $lang->name, @{$lang->extensions});
5289 $languages{$lang->name} = $lang;
5292 # This function is used to find a path from a user-specified suffix to
5293 # `o' or to some other suffix we recognize internally, eg `cc'.
5296 my ($source_ext) = @_;
5298 # FIXME: hard-coding `o' is a mistake. Doing something
5299 # intelligent is harder.
5300 while (! $extension_map{$source_ext}
5301 && $source_ext ne 'o'
5302 && defined $suffix_rules{$source_ext})
5304 $source_ext = $suffix_rules{$source_ext};
5311 ################################################################
5313 # Pretty-print something. HEAD is what should be printed at the
5314 # beginning of the first line, FILL is what should be printed at the
5315 # beginning of every subsequent line.
5316 sub pretty_print_internal
5318 my ($head, $fill, @values) = @_;
5320 my $column = length ($head);
5323 # Fill length is number of characters. However, each Tab
5324 # character counts for eight. So we count the number of Tabs and
5326 my $fill_length = length ($fill);
5327 $fill_length += 7 * ($fill =~ tr/\t/\t/d);
5331 # "71" because we also print a space.
5332 if ($column + length ($_) > 71)
5334 $result .= " \\\n" . $fill;
5335 $column = $fill_length;
5337 $result .= ' ' if $result =~ /\S\z/;
5339 $column += length ($_) + 1;
5346 # Pretty-print something and append to output_vars.
5349 $output_vars .= &pretty_print_internal (@_);
5352 # Pretty-print something and append to output_rules.
5353 sub pretty_print_rule
5355 $output_rules .= &pretty_print_internal (@_);
5359 ################################################################
5363 # &conditional_string(@COND-STACK)
5364 # --------------------------------
5365 # Build a string which denotes the conditional in @COND-STACK. Some
5366 # simplifications are done: `TRUE' entries are elided, and any `FALSE'
5367 # entry results in a return of `FALSE'.
5368 sub conditional_string
5372 if (grep (/^FALSE$/, @stack))
5378 return join (' ', uniq sort grep (!/^TRUE$/, @stack));
5384 # &conditional_true_when ($COND, $WHEN)
5385 # -------------------------------------
5386 # See if a conditional is true. Both arguments are conditional
5387 # strings. This returns true if the first conditional is true when
5388 # the second conditional is true.
5389 # For instance with $COND = `BAR FOO', and $WHEN = `BAR BAZ FOO',
5390 # obviously return 1, and 0 when, for instance, $WHEN = `FOO'.
5391 sub conditional_true_when ($$)
5393 my ($cond, $when) = @_;
5395 # Make a hash holding all the values from $WHEN.
5396 my %cond_vals = map { $_ => 1 } split (' ', $when);
5398 # Check each component of $cond, which looks `COND1 COND2'.
5399 foreach my $comp (split (' ', $cond))
5401 # TRUE is always true.
5402 next if $comp eq 'TRUE';
5403 return 0 if ! defined $cond_vals{$comp};
5411 # &conditionals_true_when (\@CONDS, $WHEN)
5412 # ----------------------------------------
5413 # Same as above, but true only if all the @CONDS are true when $WHEN is true.
5415 # If there are no @CONDS, then return true.
5416 sub conditionals_true_when (\@$)
5418 my ($condsref, $when) = @_;
5420 foreach my $cond (@$condsref)
5422 return 0 unless conditional_true_when ($cond, $when);
5429 # &conditional_is_redundant ($COND, @WHENS)
5430 # ----------------------------------------
5431 # Determine whether $COND is redundant with respect to @WHENS.
5433 # Returns true if $COND is true for any of the conditions in @WHENS.
5435 # If there are no @WHENS, then behave as if @WHENS contained a single empty
5437 sub conditional_is_redundant ($@)
5439 my ($cond, @whens) = @_;
5443 return 1 if conditional_true_when ($cond, "");
5447 foreach my $when (@whens)
5449 return 1 if conditional_true_when ($cond, $when);
5458 # condition_negate ($COND)
5459 # ------------------------
5460 sub condition_negate ($)
5464 $cond =~ s/TRUE$/TRUEO/;
5465 $cond =~ s/FALSE$/TRUE/;
5466 $cond =~ s/TRUEO$/FALSE/;
5472 # Compare condition names.
5473 # Issue them in alphabetical order, foo_TRUE before foo_FALSE.
5476 # Be careful we might be comparing `' or `#'.
5477 $a =~ /^(.*)_(TRUE|FALSE)$/;
5478 my ($aname, $abool) = ($1 || '', $2 || '');
5479 $b =~ /^(.*)_(TRUE|FALSE)$/;
5480 my ($bname, $bbool) = ($1 || '', $2 || '');
5481 return ($aname cmp $bname
5482 # Don't bother with IFs, given that TRUE is after FALSE
5483 # just cmp in the reverse order.
5484 || $bbool cmp $abool
5490 # &make_condition (@CONDITIONS)
5491 # -----------------------------
5492 # Transform a list of conditions (themselves can be an internal list
5493 # of conditions, e.g., @CONDITIONS = ('cond1 cond2', 'cond3')) into a
5494 # Make conditional (a pattern for AC_SUBST).
5495 # Correctly returns the empty string when there are no conditions.
5498 my $res = conditional_string (@_);
5500 # There are no conditions.
5506 elsif ($res eq 'FALSE')
5513 $res = '@' . $res . '@';
5522 ## ------------------------------ ##
5523 ## Handling the condition stack. ##
5524 ## ------------------------------ ##
5528 # cond_stack_if ($NEGATE, $COND, $WHERE)
5529 # --------------------------------------
5530 sub cond_stack_if ($$$)
5532 my ($negate, $cond, $where) = @_;
5534 &am_file_error ($where, "$cond does not appear in AM_CONDITIONAL")
5535 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5537 $cond = "${cond}_TRUE"
5538 unless $cond =~ /^TRUE|FALSE$/;
5539 $cond = condition_negate ($cond)
5542 push (@cond_stack, $cond);
5544 return conditional_string (@cond_stack);
5549 # cond_stack_else ($NEGATE, $COND, $WHERE)
5550 # ----------------------------------------
5551 sub cond_stack_else ($$$)
5553 my ($negate, $cond, $where) = @_;
5557 &am_file_error ($where, "else without if");
5561 $cond_stack[$#cond_stack] = condition_negate ($cond_stack[$#cond_stack]);
5563 # If $COND is given, check against it.
5566 $cond = "${cond}_TRUE"
5567 unless $cond =~ /^TRUE|FALSE$/;
5568 $cond = condition_negate ($cond)
5571 &am_file_error ($where,
5572 "else reminder ($negate$cond) incompatible with "
5573 . "current conditional: $cond_stack[$#cond_stack]")
5574 if $cond_stack[$#cond_stack] ne $cond;
5577 return conditional_string (@cond_stack);
5582 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5583 # -----------------------------------------
5584 sub cond_stack_endif ($$$)
5586 my ($negate, $cond, $where) = @_;
5591 &am_file_error ($where, "endif without if: $negate$cond");
5596 # If $COND is given, check against it.
5599 $cond = "${cond}_TRUE"
5600 unless $cond =~ /^TRUE|FALSE$/;
5601 $cond = condition_negate ($cond)
5604 &am_file_error ($where,
5605 "endif reminder ($negate$cond) incompatible with "
5606 . "current conditional: $cond_stack[$#cond_stack]")
5607 if $cond_stack[$#cond_stack] ne $cond;
5612 return conditional_string (@cond_stack);
5619 ## ------------------------ ##
5620 ## Handling the variables. ##
5621 ## ------------------------ ##
5624 # check_ambiguous_conditional ($VAR, $COND)
5625 # -----------------------------------------
5626 # Check for an ambiguous conditional. This is called when a variable
5627 # is being defined conditionally. If we already know about a
5628 # definition that is true under the same conditions, then we have an
5630 sub check_ambiguous_conditional ($$)
5632 my ($var, $cond) = @_;
5633 foreach my $vcond (keys %{$var_value{$var}})
5636 if ($vcond eq $cond)
5638 $message = "$var multiply defined in condition $cond";
5640 elsif (&conditional_true_when ($vcond, $cond))
5642 $message = ("$var was already defined in condition $vcond, "
5643 . "which implies condition $cond");
5645 elsif (&conditional_true_when ($cond, $vcond))
5647 $message = ("$var was already defined in condition $vcond, "
5648 . "which is implied by condition $cond");
5652 &am_line_error ($var, $message);
5659 # ¯o_define($VAR, $VAR_IS_AM, $TYPE, $COND, $VALUE, $WHERE)
5660 # -------------------------------------------------------------
5661 # The $VAR can go from Automake to user, but not the converse.
5662 sub macro_define ($$$$$$)
5664 my ($var, $var_is_am, $type, $cond, $value, $where) = @_;
5666 am_file_error ($where, "bad macro name `$var'")
5667 if $var !~ /$MACRO_PATTERN/o;
5671 # An Automake variable must be consistently defined with the same
5672 # sign by Automake. A user variable must be set by either `=' or
5673 # `:=', and later promoted to `+='.
5676 if (defined $var_type{$var} && $var_type{$var} ne $type)
5678 am_line_error ($var,
5679 ("$var was set with `$var_type{$var}=' "
5680 . "and is now set with `$type='"));
5685 if (!defined $var_type{$var} && $type eq '+')
5687 am_line_error ($var, "$var must be set with `=' before using `+='");
5690 $var_type{$var} = $type;
5692 # When adding, since we rewrite, don't try to preserve the
5693 # Automake continuation backslashes.
5695 if $type eq '+' && $var_is_am;
5697 # Differentiate the first assignment (including with `+=').
5698 if ($type eq '+' && defined $var_value{$var}{$cond})
5700 if (substr ($var_value{$var}{$cond}, -1) eq "\n")
5702 # Insert a backslash before a trailing newline.
5703 $var_value{$var}{$cond} =
5704 substr ($var_value{$var}{$cond}, 0, -1) . "\\\n";
5706 elsif ($var_value{$var}{$cond})
5708 # Insert a separator.
5709 $var_value{$var}{$cond} .= ' ';
5711 $var_value{$var}{$cond} .= $value;
5715 # The first assignment to a macro sets the line number. Ideally I
5716 # suppose we would associate line numbers with random bits of text.
5717 # FIXME: We sometimes redefine some variables, but we want to keep
5718 # the original location. More subs are needed to handle
5719 # properly variables. Once this done, remove this hack.
5720 $var_line{$var} = $where
5721 unless defined $var_line{$var};
5723 # If Automake tries to override a value specified by the user,
5724 # just don't let it do.
5725 if (defined $var_value{$var}{$cond} && !$var_is_am{$var} && $var_is_am)
5729 print STDERR "$me: refusing to override the user definition of:\n";
5731 print STDERR "$me: with `$cond' => `$value'\n";
5736 # There must be no previous value unless the user is redefining
5737 # an Automake variable or an AC_SUBST variable.
5738 check_ambiguous_conditional ($var, $cond)
5739 unless ($var_is_am{$var} && !$var_is_am
5740 || exists $configure_vars{$var});
5742 $var_value{$var}{$cond} = $value;
5746 # An Automake variable can be given to the user, but not the converse.
5747 if (! defined $var_is_am{$var} || !$var_is_am)
5749 $var_is_am{$var} = $var_is_am;
5754 # &variable_delete ($VAR, [@CONDS])
5755 # ---------------------------------
5756 # Forget about $VAR under the conditions @CONDS, or completely if
5758 sub variable_delete ($@)
5760 my ($var, @conds) = @_;
5764 delete $var_value{$var};
5765 delete $var_line{$var};
5766 delete $var_is_am{$var};
5767 delete $var_comment{$var};
5768 delete $var_type{$var};
5772 foreach my $cond (@conds)
5774 delete $var_value{$var}{$cond};
5780 # ¯o_dump ($VAR)
5781 # ------------------
5786 if (!exists $var_value{$var})
5788 print STDERR " $var does not exist\n";
5792 my $var_is_am = $var_is_am{$var} ? "Automake" : "User";
5793 my $where = (defined $var_line{$var}
5794 ? $var_line{$var} : "undefined");
5795 print STDERR "$var_comment{$var}"
5796 if defined $var_comment{$var};
5797 print STDERR " $var ($var_is_am, where = $where) $var_type{$var}=\n";
5798 print STDERR " {\n";
5799 foreach my $vcond (sort by_condition keys %{$var_value{$var}})
5801 print STDERR " $vcond => $var_value{$var}{$vcond}\n";
5803 print STDERR " }\n";
5814 print STDERR "%var_value =\n";
5816 foreach my $var (sort (keys %var_value))
5825 # &variable_defined ($VAR, [$COND])
5826 # ---------------------------------
5827 # See if a variable exists. $VAR is the variable name, and $COND is
5828 # the condition which we should check. If no condition is given, we
5829 # currently return true if the variable is defined under any
5831 sub variable_defined ($$)
5833 my ($var, $cond) = @_;
5835 # Unfortunately we can't just check for $var_value{VAR}{COND}
5836 # as this would make perl create $condition{VAR}, which we
5838 if (!exists $var_value{$var})
5840 if (defined $targets{$var})
5842 &am_line_error ($var, "`$var' is a target; expected a variable")
5844 # The variable is not defined
5848 if ($cond && !exists $var_value{$var}{$cond})
5850 # The variable is not defined for the given condition.
5854 # Even a var_value examination is good enough for us. FIXME:
5855 # really should maintain examined status on a per-condition basis.
5856 $content_seen{$var} = 1;
5860 # Mark a variable as examined.
5861 sub examine_variable
5864 &variable_defined ($var);
5867 # Return the set of conditions for which a variable is defined.
5869 # If the variable is not defined conditionally, and is not defined in
5870 # terms of any variables which are defined conditionally, then this
5871 # returns the empty list.
5873 # If the variable is defined conditionally, but is not defined in
5874 # terms of any variables which are defined conditionally, then this
5875 # returns the list of conditions for which the variable is defined.
5877 # If the variable is defined in terms of any variables which are
5878 # defined conditionally, then this returns a full set of permutations
5879 # of the subvariable conditions. For example, if the variable is
5880 # defined in terms of a variable which is defined for COND_TRUE,
5881 # then this returns both COND_TRUE and COND_FALSE. This is
5882 # because we will need to define the variable under both conditions.
5884 sub variable_conditions ($)
5892 my @new_conds = &variable_conditions_sub ($var, '', ());
5893 # Now we want to return all permutations of the subvariable
5896 foreach my $item (@new_conds)
5898 foreach (split (' ', $item))
5900 s/^(.*)_(TRUE|FALSE)$/$1_TRUE/;
5904 @new_conds = &variable_conditions_permutations (sort keys %allconds);
5906 foreach my $cond (@new_conds)
5908 my $reduce = &variable_conditions_reduce (split (' ', $cond));
5910 if $reduce eq 'FALSE';
5911 $uniqify{$cond} = 1;
5914 @uniq_list = sort by_condition keys %uniqify;
5915 # Note we cannot just do `return sort keys %uniqify', because this
5916 # function is sometimes used in a scalar context.
5922 # &variable_conditionally_defined ($VAR)
5923 # --------------------------------------
5924 sub variable_conditionally_defined ($)
5927 foreach my $cond (variable_conditions ($var))
5930 unless $cond =~ /^TRUE|FALSE$/;
5937 # &variable_conditions_sub ($VAR, $PARENT, @PARENT_CONDS)
5938 # -------------------------------------------------------
5939 # A subroutine of variable_conditions. This returns all the
5940 # conditions of $VAR which are satisfiable when all of @PARENT_CONDS
5942 sub variable_conditions_sub
5944 my ($var, $parent, @parent_conds) = @_;
5947 if (defined $vars_scanned{$var})
5949 &am_line_error ($parent, "variable `$var' recursively defined");
5952 $vars_scanned{$var} = 1;
5954 my @this_conds = ();
5955 # Examine every condition under which $VAR is defined.
5956 foreach my $vcond (keys %{$var_value{$var}})
5958 # If this condition cannot be true when the parent conditions
5959 # are true, then skip it.
5961 if ! conditionals_true_when (@parent_conds, $vcond);
5963 push (@this_conds, $vcond);
5965 # If $VAR references some other variable, then compute the
5966 # conditions for that subvariable.
5967 push (@parent_conds, $vcond);
5968 my @subvar_conds = ();
5969 foreach (split (' ', $var_value{$var}{$vcond}))
5971 # If a comment seen, just leave.
5974 # Handle variable substitutions.
5975 if (/^\$\{(.*)\}$/ || /^\$\((.*)\)$/)
5978 # Here we compute all the conditions under which the
5979 # subvariable is defined. Then we go through and add
5981 my @svc = &variable_conditions_sub ($1, $var, @parent_conds);
5982 foreach my $item (@svc)
5984 my $val = conditional_string ($vcond, split (' ', $item));
5986 push (@subvar_conds, $val);
5990 pop (@parent_conds);
5992 # If there are no conditional subvariables, then we want to
5993 # return this condition. Otherwise, we want to return the
5994 # permutations of the subvariables, taking into account the
5995 # conditions of $VAR.
5996 if (! @subvar_conds)
5998 push (@new_conds, $vcond);
6002 push (@new_conds, &variable_conditions_reduce (@subvar_conds));
6006 # Unset our entry in vars_scanned. We only care about recursive
6008 delete $vars_scanned{$var};
6010 # If we are being called on behalf of another variable, we need to
6011 # return all possible permutations of the conditions. We have
6012 # already handled everything in @this_conds along with their
6013 # subvariables. We now need to add any permutations that are not
6015 foreach my $this_cond (@this_conds)
6018 &variable_conditions_permutations (split(' ', $this_cond));
6019 foreach my $perm (@perms)
6022 foreach my $scan (@this_conds)
6024 if (&conditional_true_when ($perm, $scan)
6025 || &conditional_true_when ($scan, $perm))
6034 if ! conditionals_true_when (@parent_conds, $perm);
6036 # This permutation was not already handled, and is valid
6038 push (@new_conds, $perm);
6046 # Filter a list of conditionals so that only the exclusive ones are
6047 # retained. For example, if both `COND1_TRUE COND2_TRUE' and
6048 # `COND1_TRUE' are in the list, discard the latter.
6049 # If the list is empty, return TRUE
6050 sub variable_conditions_reduce
6057 $cond = shift(@conds);
6059 # FALSE is absorbent.
6060 if ($cond eq 'FALSE')
6064 elsif (!conditional_is_redundant ($cond, @ret, @conds))
6070 return "TRUE" if @ret == 0;
6074 # Return a list of permutations of a conditional string.
6075 sub variable_conditions_permutations
6080 my $comp = shift (@comps);
6081 return &variable_conditions_permutations (@comps)
6083 my $neg = condition_negate ($comp);
6086 foreach my $sub (&variable_conditions_permutations (@comps))
6088 push (@ret, "$comp $sub");
6089 push (@ret, "$neg $sub");
6101 # &check_variable_defined_unconditionally($VAR, $PARENT)
6102 # ------------------------------------------------------
6103 # Warn if a variable is conditionally defined. This is called if we
6104 # are using the value of a variable.
6105 sub check_variable_defined_unconditionally ($$)
6107 my ($var, $parent) = @_;
6108 foreach my $cond (keys %{$var_value{$var}})
6111 if $cond =~ /^TRUE|FALSE$/;
6115 &am_line_error ($parent,
6116 "warning: automake does not support conditional definition of $var in $parent");
6120 &am_line_error ($parent,
6121 "warning: automake does not support $var being defined conditionally");
6129 # Get the TRUE value of a variable, warn if the variable is
6130 # conditionally defined.
6134 &check_variable_defined_unconditionally ($var);
6135 return $var_value{$var}{'TRUE'};
6140 # &value_to_list ($VAR, $VAL, $COND)
6141 # ----------------------------------
6142 # Convert a variable value to a list, split as whitespace. This will
6143 # recursively follow $(...) and ${...} inclusions. It preserves @...@
6146 # If COND is 'all', then all values under all conditions should be
6147 # returned; if COND is a particular condition (all conditions are
6148 # surrounded by @...@) then only the value for that condition should
6149 # be returned; otherwise, warn if VAR is conditionally defined.
6150 # SCANNED is a global hash listing whose keys are all the variables
6151 # already scanned; it is an error to rescan a variable.
6154 my ($var, $val, $cond) = @_;
6158 $val =~ s/\\(\n|$)/ /g;
6160 foreach (split (' ', $val))
6162 # If a comment seen, just leave.
6165 # Handle variable substitutions.
6166 if (/^\$\{([^}]*)\}$/ || /^\$\(([^)]*)\)$/)
6170 # If the user uses a losing variable name, just ignore it.
6171 # This isn't ideal, but people have requested it.
6172 next if ($varname =~ /\@.*\@/);
6176 if ($varname =~ /^([^:]*):([^=]*)=(.*)$/)
6180 ($from = $2) =~ s/(\W)/\\$1/g;
6184 @temp_list = &variable_value_as_list_worker ($1, $cond, $var);
6186 # Now rewrite the value if appropriate.
6189 grep (s/$from$/$to/, @temp_list);
6192 push (@result, @temp_list);
6203 # Return contents of variable as list, split as whitespace. This will
6204 # recursively follow $(...) and ${...} inclusions. It preserves @...@
6205 # substitutions. If COND is 'all', then all values under all
6206 # conditions should be returned; if COND is a particular condition
6207 # (all conditions are surrounded by @...@) then only the value for
6208 # that condition should be returned; otherwise, warn if VAR is
6209 # conditionally defined. If PARENT is specified, it is the name of
6210 # the including variable; this is only used for error reports.
6211 sub variable_value_as_list_worker
6213 my ($var, $cond, $parent) = @_;
6216 if (! defined $var_value{$var})
6218 if (defined $targets{$var})
6220 &am_line_error ($var, "`$var' is a target; expected a variable");
6224 &am_line_error ($parent, "variable `$var' not defined");
6227 elsif (defined $vars_scanned{$var})
6229 # `vars_scanned' is a global we use to keep track of which
6230 # variables we've already examined.
6231 &am_line_error ($parent, "variable `$var' recursively defined");
6233 elsif ($cond eq 'all')
6235 $vars_scanned{$var} = 1;
6236 foreach my $vcond (keys %{$var_value{$var}})
6238 my $val = $var_value{$var}{$vcond};
6239 push (@result, &value_to_list ($var, $val, $cond));
6245 $vars_scanned{$var} = 1;
6247 foreach my $vcond (keys %{$var_value{$var}})
6249 my $val = $var_value{$var}{$vcond};
6250 if (&conditional_true_when ($vcond, $cond))
6252 # Warn if we have an ambiguity. It's hard to know how
6253 # to handle this case correctly.
6254 &check_variable_defined_unconditionally ($var, $parent)
6257 push (@result, &value_to_list ($var, $val, $cond));
6262 # Unset our entry in vars_scanned. We only care about recursive
6264 delete $vars_scanned{$var};
6270 # &variable_output ($VAR, [@CONDS])
6271 # ---------------------------------
6272 # Output all the values of $VAR is @COND is not specified, else only
6273 # that corresponding to @COND.
6274 sub variable_output ($@)
6276 my ($var, @conds) = @_;
6278 @conds = sort by_condition keys %{$var_value{$var}}
6281 $output_vars .= $var_comment{$var}
6282 if defined $var_comment{$var};
6284 foreach my $cond (@conds)
6286 my $val = $var_value{$var}{$cond};
6287 my $equals = $var_type{$var} eq ':' ? ':=' : '=';
6288 my $output_var = "$var $equals $val";
6289 $output_var =~ s/^/make_condition ($cond)/meg;
6290 $output_vars .= $output_var . "\n";
6295 # &variable_pretty_output ($VAR, [@CONDS])
6296 # ----------------------------------------
6297 # Likewise, but pretty, i.e., we *split* the values at spaces. Use only
6298 # with variables holding filenames.
6299 sub variable_pretty_output ($@)
6301 my ($var, @conds) = @_;
6303 @conds = sort by_condition keys %{$var_value{$var}}
6306 $output_vars .= $var_comment{$var}
6307 if defined $var_comment{$var};
6309 foreach my $cond (@conds)
6311 my $val = $var_value{$var}{$cond};
6312 my $equals = $var_type{$var} eq ':' ? ':=' : '=';
6313 my $make_condition = make_condition ($cond);
6314 $output_vars .= pretty_print_internal ("$make_condition$var $equals",
6315 "$make_condition\t",
6316 split (' ' , $val));
6321 # This is just a wrapper for variable_value_as_list_worker that
6322 # initializes the global hash `vars_scanned'. This hash is used to
6323 # avoid infinite recursion.
6324 sub variable_value_as_list
6326 my ($var, $cond, $parent) = @_;
6328 return &variable_value_as_list_worker ($var, $cond, $parent);
6332 # Like define_variable, but the value is a list, and the variable may
6333 # be defined conditionally. The second argument is the conditional
6334 # under which the value should be defined; this should be the empty
6335 # string to define the variable unconditionally. The third argument
6336 # is a list holding the values to use for the variable. The value is
6337 # pretty printed in the output file.
6338 sub define_pretty_variable
6340 my ($var, $cond, @value) = @_;
6342 # Beware that an empty $cond has a different semantics for
6343 # macro_define and variable_pretty_output.
6346 if (! &variable_defined ($var, $cond))
6348 macro_define ($var, 1, '', $cond, join (' ', @value), undef);
6349 variable_pretty_output ($var, $cond || 'TRUE');
6350 $content_seen{$var} = 1;
6355 # define_variable ($VAR, $VALUE)
6356 # ------------------------------
6357 # Define a new user variable VAR to VALUE, but only if not already defined.
6360 my ($var, $value) = @_;
6362 define_pretty_variable ($var, 'TRUE', $value);
6366 # Like define_variable, but define a variable to be the configure
6367 # substitution by the same name.
6368 sub define_configure_variable
6371 my $value = '@' . $var . '@';
6372 &define_variable ($var, $value);
6376 # define_compiler_variable ($LANG)
6377 # --------------------------------
6378 # Define a compiler variable. We also handle defining the `LT'
6379 # version of the command when using libtool.
6380 sub define_compiler_variable ($)
6384 my ($var, $value) = ($lang->compiler, $lang->compile);
6385 &define_variable ($var, $value);
6386 &define_variable ("LT$var", "\$(LIBTOOL) --mode=compile $value")
6391 # define_linker_variable ($LANG)
6392 # ------------------------------
6393 # Define linker variables.
6394 sub define_linker_variable ($)
6398 my ($var, $value) = ($lang->lder, $lang->ld);
6400 &define_variable ($lang->lder, $lang->ld);
6401 # CCLINK = $(CCLD) blah blah...
6402 &define_variable ($lang->linker,
6403 (($seen_libtool ? '$(LIBTOOL) --mode=link ' : '')
6407 ################################################################
6409 ## ---------------- ##
6410 ## Handling rules. ##
6411 ## ---------------- ##
6413 sub rule_define ($$$$)
6415 my ($target, $rule_is_am, $cond, $where) = @_;
6417 if (defined $targets{$target}
6419 ? ! defined $target_conditional{$target}
6420 : defined $target_conditional{$target}))
6422 &am_line_error ($target,
6423 "$target defined both conditionally and unconditionally");
6426 # Value here doesn't matter; for targets we only note existence.
6427 $targets{$target} = $where;
6430 if ($target_conditional{$target})
6432 &check_ambiguous_conditional ($target, $cond);
6434 $target_conditional{$target}{$cond} = $where;
6438 # Check the rule for being a suffix rule. If so, store in a hash.
6440 if ((my ($source_suffix, $object_suffix)) = ($target =~ $SUFFIX_RULE_PATTERN))
6442 $suffix_rules{$source_suffix} = $object_suffix;
6443 print "Sources ending in .$source_suffix become .$object_suffix\n"
6445 # Set SUFFIXES from suffix_rules.
6446 push @suffixes, ".$source_suffix", ".$object_suffix";
6451 # See if a target exists.
6455 return defined $targets{$target};
6459 ################################################################
6461 # Read Makefile.am and set up %contents. Simultaneously copy lines
6462 # from Makefile.am into $output_trailer or $output_vars as
6463 # appropriate. NOTE we put rules in the trailer section. We want
6464 # user rules to come after our generated stuff.
6469 my $am_file = new IO::File ("< $amfile");
6472 die "$me: couldn't open `$amfile': $!\n";
6474 print "$me: reading $amfile\n" if $verbose;
6480 while ($_ = $am_file->getline)
6482 if (/$IGNORE_PATTERN/o)
6484 # Merely delete comments beginning with two hashes.
6486 elsif (/$WHITE_PATTERN/o)
6488 # Stick a single white line before the incoming macro or rule.
6492 elsif (/$COMMENT_PATTERN/o)
6494 # Stick comments before the incoming macro or rule. Make
6495 # sure a blank line preceeds first block of comments.
6496 $spacing = "\n" unless $blank;
6498 $comment .= $spacing . $_;
6507 $output_vars .= $comment . "\n";
6511 # We save the conditional stack on entry, and then check to make
6512 # sure it is the same on exit. This lets us conditonally include
6514 my @saved_cond_stack = @cond_stack;
6515 my $cond = conditional_string (@cond_stack);
6519 my $last_var_name = '';
6520 my $last_var_type = '';
6521 my $last_var_value = '';
6522 # FIXME: shouldn't use $_ in this loop; it is too big.
6526 unless substr ($_, -1, 1) eq "\n";
6528 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6529 # used by users. @MAINT@ is an anachronism now.
6530 $_ =~ s/\@MAINT\@//g
6531 unless $seen_maint_mode;
6533 my $new_saw_bk = /\\$/ && ! /$COMMENT_PATTERN/o;
6535 if (/$IGNORE_PATTERN/o)
6537 # Merely delete comments beginning with two hashes.
6539 elsif (/$WHITE_PATTERN/o)
6541 # Stick a single white line before the incoming macro or rule.
6543 &am_line_error ($., "blank line following trailing backslash")
6546 elsif (/$COMMENT_PATTERN/o)
6548 # Stick comments before the incoming macro or rule.
6549 $comment .= $spacing . $_;
6551 &am_line_error ($., "comment following trailing backslash")
6558 $output_trailer .= &make_condition (@cond_stack);
6559 $output_trailer .= $_;
6563 $last_var_value .= ' '
6564 unless $last_var_value =~ /\s$/;
6565 $last_var_value .= $_;
6569 $var_comment{$last_var_name} .= "$spacing"
6570 if (!defined $var_comment{$last_var_name}
6571 || substr ($var_comment{$last_var_name}, -1) ne "\n");
6572 $var_comment{$last_var_name} .= "$comment";
6573 $comment = $spacing = '';
6574 macro_define ($last_var_name, 0,
6575 $last_var_type, $cond,
6576 $last_var_value, $.)
6577 if $cond ne 'FALSE';
6578 push (@var_list, $last_var_name);
6583 elsif (/$IF_PATTERN/o)
6585 $cond = cond_stack_if ($1, $2, "$amfile:$.");
6587 elsif (/$ELSE_PATTERN/o)
6589 $cond = cond_stack_else ($1, $2, "$amfile:$.");
6591 elsif (/$ENDIF_PATTERN/o)
6593 $cond = cond_stack_endif ($1, $2, "$amfile:$.");
6596 elsif (/$RULE_PATTERN/o)
6601 rule_define ($1, 0, $cond, $.);
6604 $output_trailer .= $comment . $spacing;
6605 $output_trailer .= &make_condition (@cond_stack);
6606 $output_trailer .= $_;
6607 $comment = $spacing = '';
6609 elsif (/$ASSIGNMENT_PATTERN/o)
6611 # Found a macro definition.
6613 $last_var_name = $1;
6614 $last_var_type = $2;
6615 $last_var_value = $3;
6616 if ($3 ne '' && substr ($3, -1) eq "\\")
6618 # We preserve the `\' because otherwise the long lines
6619 # that are generated will be truncated by broken
6621 $last_var_value = $3 . "\n";
6626 # FIXME: this doesn't always work correctly; it will
6627 # group all comments for a given variable, no matter
6629 # Accumulating variables must not be output.
6630 $var_comment{$last_var_name} .= "$spacing"
6631 if (!defined $var_comment{$last_var_name}
6632 || substr ($var_comment{$last_var_name}, -1) ne "\n");
6633 $var_comment{$last_var_name} .= "$comment";
6634 $comment = $spacing = '';
6636 macro_define ($last_var_name, 0,
6637 $last_var_type, $cond,
6638 $last_var_value, $.)
6639 if $cond ne 'FALSE';
6640 push (@var_list, $last_var_name);
6643 elsif (/$INCLUDE_PATTERN/o)
6647 if ($path =~ s/^\$\(top_srcdir\)\///)
6649 push (@include_stack, "\$\(top_srcdir\)/$path");
6653 $path =~ s/\$\(srcdir\)\///;
6654 push (@include_stack, "\$\(srcdir\)/$path");
6655 $path = $relative_dir . "/" . $path;
6657 &read_am_file ($path);
6661 # This isn't an error; it is probably a continued rule.
6662 # In fact, this is what we assume.
6664 $output_trailer .= $comment . $spacing;
6665 $output_trailer .= &make_condition (@cond_stack);
6666 $output_trailer .= $_;
6667 $comment = $spacing = '';
6668 &am_line_error ($., "`#' comment at start of rule is unportable")
6669 if $_ =~ /^\t\s*\#/;
6672 $saw_bk = $new_saw_bk;
6673 $_ = $am_file->getline;
6676 $output_trailer .= $comment;
6678 if (join (' ', @saved_cond_stack) ne join (' ', @cond_stack))
6682 &am_error ("unterminated conditionals: @cond_stack");
6686 # FIXME: better error message here.
6687 &am_error ("conditionals not nested in include file");
6693 # define_standard_variables ()
6694 # ----------------------------
6695 # A helper for read_main_am_file which initializes configure variables
6696 # and variables from header-vars.am. This is a subr so we can call it
6698 sub define_standard_variables
6700 my $saved_output_vars = $output_vars;
6701 my ($comments, undef, $rules) =
6702 file_contents_internal (1, "$libdir/am/header-vars.am");
6704 # This will output the definitions in $output_vars, which we don't
6706 foreach my $var (sort keys %configure_vars)
6708 &define_configure_variable ($var);
6709 push (@var_list, $var);
6712 # ... hence, we restore $output_vars.
6713 $output_vars = $saved_output_vars . $comments . $rules;
6716 # Read main am file.
6717 sub read_main_am_file
6721 # This supports the strange variable tricks we are about to play.
6722 if (scalar keys %var_value > 0)
6725 &prog_error ("variable defined before read_main_am_file");
6728 # Generate copyright header for generated Makefile.in.
6729 # We do discard the output of predefined variables, handled below.
6730 $output_vars = ("# $in_file_name generated automatically by automake "
6731 . $VERSION . " from $am_file_name.\n");
6732 $output_vars .= $gen_copyright;
6734 # We want to predefine as many variables as possible. This lets
6735 # the user set them with `+=' in Makefile.am. However, we don't
6736 # want these initial definitions to end up in the output quite
6737 # yet. So we just load them, but output them later.
6738 &define_standard_variables;
6740 # Read user file, which might override some of our values.
6741 &read_am_file ($amfile);
6743 # Ouput all the Automake variables. If the user changed one, then
6744 # it is now marked as owned by the user.
6745 foreach my $var (uniq @var_list)
6747 # Don't process user variables.
6748 variable_output ($var)
6749 unless !$var_is_am{$var};
6752 # Now dump the user variables that were defined. We do it in the same
6753 # order in which they were defined (skipping duplicates).
6754 foreach my $var (uniq @var_list)
6756 # Don't process Automake variables.
6757 variable_output ($var)
6758 unless $var_is_am{$var};
6762 ################################################################
6765 # &flatten ($STRING)
6766 # ------------------
6767 # Flatten the $STRING and return the result.
6782 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6783 # ------------------------------------------
6784 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6786 sub make_paragraphs ($%)
6788 my ($file, %transform) = @_;
6790 # Complete %transform with global options and make it a Perl
6793 "s/$IGNORE_PATTERN//gm;"
6794 . transform (%transform,
6796 'CYGNUS' => $cygnus_mode,
6798 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6800 'SHAR' => $options{'dist-shar'} || 0,
6801 'BZIP2' => $options{'dist-bzip2'} || 0,
6802 'ZIP' => $options{'dist-zip'} || 0,
6803 'COMPRESS' => $options{'dist-tarZ'} || 0,
6805 'INSTALL-INFO' => !$options{'no-installinfo'},
6806 'INSTALL-MAN' => !$options{'no-installman'},
6807 'CK-NEWS' => $options{'check-news'} || 0,
6809 'SUBDIRS' => &variable_defined ('SUBDIRS'),
6810 'TOPDIR' => backname ($relative_dir),
6811 'TOPDIR_P' => $relative_dir eq '.',
6812 'CONFIGURE-AC' => $configure_ac,
6814 'BUILD' => $seen_canonical == $AC_CANONICAL_SYSTEM,
6815 'HOST' => $seen_canonical,
6816 'TARGET' => $seen_canonical == $AC_CANONICAL_SYSTEM,
6818 'EXEEXT' => ($seen_exeext ? '$(EXEEXT)' : ''),
6820 'LIBTOOL' => defined $configure_vars{'LIBTOOL'})
6821 # We don't need more than two consecutive new-lines.
6822 . 's/\n{3,}/\n\n/g';
6824 # Swallow the file and apply the COMMAND.
6825 my $fc_file = new IO::File ("< $file");
6828 die "$me: installation error: cannot open `$file'\n";
6831 print "$me: reading $file\n"
6833 my $saved_dollar_slash = $/;
6835 $_ = $fc_file->getline;
6836 $/ = $saved_dollar_slash;
6841 # Split at unescaped new lines.
6842 my @lines = split (/(?<!\\)\n/, $content);
6845 while (defined ($_ = shift @lines))
6847 my $paragraph = "$_";
6848 # If we are a rule, eat as long as we start with a tab.
6849 if (/$RULE_PATTERN/smo)
6851 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6853 $paragraph .= "\n$_";
6855 unshift (@lines, $_);
6858 # If we are a comments, eat as much comments as you can.
6859 elsif (/$COMMENT_PATTERN/smo)
6861 while (defined ($_ = shift @lines)
6862 && $_ =~ /$COMMENT_PATTERN/smo)
6864 $paragraph .= "\n$_";
6866 unshift (@lines, $_);
6869 push @res, $paragraph;
6878 # ($COMMENT, $VARIABLES, $RULES)
6879 # &file_contents_internal ($IS_AM, $FILE, [%TRANSFORM])
6880 # -----------------------------------------------------
6881 # Return contents of a file from $libdir/am, automatically skipping
6882 # macros or rules which are already known. $IS_AM iff the caller is
6883 # reading an Automake file (as opposed to the user's Makefile.am).
6884 sub file_contents_internal ($$%)
6886 my ($is_am, $file, %transform) = @_;
6888 my $result_vars = '';
6889 my $result_rules = '';
6893 # We save the conditional stack on entry, and then check to make
6894 # sure it is the same on exit. This lets us conditonally include
6896 my @saved_cond_stack = @cond_stack;
6897 my $cond = conditional_string (@cond_stack);
6899 foreach (make_paragraphs ($file, %transform))
6902 &am_file_error ($file, "blank line following trailing backslash:\n$_")
6904 &am_file_error ($file, "comment following trailing backslash:\n$_")
6909 # Stick empty line before the incoming macro or rule.
6912 elsif (/$COMMENT_PATTERN/mso)
6914 # Stick comments before the incoming macro or rule.
6918 # Handle inclusion of other files.
6919 elsif (/$INCLUDE_PATTERN/o)
6921 if ($cond ne 'FALSE')
6923 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6925 my ($com, $vars, $rules)
6926 = file_contents_internal ($is_am, $file, %transform);
6928 $result_vars .= $vars;
6929 $result_rules .= $rules;
6933 # Handling the conditionals.
6934 elsif (/$IF_PATTERN/o)
6936 $cond = cond_stack_if ($1, $2, $file);
6938 elsif (/$ELSE_PATTERN/o)
6940 $cond = cond_stack_else ($1, $2, $file);
6942 elsif (/$ENDIF_PATTERN/o)
6944 $cond = cond_stack_endif ($1, $2, $file);
6948 elsif (/$RULE_PATTERN/mso)
6950 # Separate relationship from optional actions: the first
6951 # `new-line tab" not preceded by backslash (continuation
6953 # I'm quite shoked! It seems that (\\\n|[^\n]) is not the
6954 # same as `([^\n]|\\\n)!!! Don't swap it, it breaks.
6956 /^((?:\\\n|[^\n])*)(?:\n(\t.*))?$/som;
6957 my ($relationship, $actions) = ($1, $2 || '');
6959 # Separate targets from dependencies: the first colon.
6960 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6961 my ($targets, $dependencies) = ($1, $2);
6962 # Remove the escaped new lines.
6963 # I don't know why, but I have to use a tmp $flat_deps.
6964 my $flat_deps = &flatten ($dependencies);
6965 my @deps = split (' ', $flat_deps);
6967 foreach (split (' ' , $targets))
6969 # FIXME: We are not robust to people defining several targets
6970 # at once, only some of them being in %dependencies.
6972 # Output only if not in FALSE.
6973 if (defined $dependencies{$_}
6974 && $cond ne 'FALSE')
6976 &depend ($_, @deps);
6977 $actions{$_} .= $actions;
6981 # Free lance dependency. Output the rule for all the
6982 # targets instead of one by one.
6983 if (!defined $targets{$targets}
6984 && $cond ne 'FALSE')
6986 $paragraph =~ s/^/make_condition (@cond_stack)/gme;
6987 $result_rules .= "$spacing$comment$paragraph\n";
6988 rule_define ($targets, $is_am, $cond, $file);
6990 $comment = $spacing = '';
6996 elsif (/$ASSIGNMENT_PATTERN/mso)
6998 my ($var, $type, $val) = ($1, $2, $3);
6999 &am_file_error ($file, "macro `$var' with trailing backslash")
7002 # Accumulating variables must not be output.
7003 $var_comment{$var} .= "$spacing"
7004 if (!defined $var_comment{$var}
7005 || substr ($var_comment{$var}, -1) ne "\n");
7006 $var_comment{$var} .= "$comment";
7007 macro_define ($var, $is_am, $type, $cond, $val, $file)
7008 if $cond ne 'FALSE';
7009 push (@var_list, $var);
7011 # If the user has set some variables we were in charge
7012 # of (which is detected by the first reading of
7013 # `header-vars.am'), we must not output them.
7014 $result_vars .= "$spacing$comment$_\n"
7015 if $type ne '+' && $var_is_am{$var} && $cond ne 'FALSE';
7017 $comment = $spacing = '';
7021 # This isn't an error; it is probably some tokens which
7022 # configure is supposed to replace, such as `@SET-MAKE@',
7023 # or some part of a rule cut by an if/endif.
7024 if ($cond ne 'FALSE')
7026 s/^/make_condition (@cond_stack)/gme;
7027 $result_rules .= "$spacing$comment$_\n";
7029 $comment = $spacing = '';
7033 if (join (' ', @saved_cond_stack) ne join (' ', @cond_stack))
7037 &am_error ("unterminated conditionals: @cond_stack");
7041 # FIXME: better error message here.
7042 &am_error ("conditionals not nested in include file");
7046 return ($comment, $result_vars, $result_rules);
7051 # &file_contents ($BASENAME, [%TRANSFORM])
7052 # ----------------------------------------
7053 # Return contents of a file from $libdir/am, automatically skipping
7054 # macros or rules which are already known.
7055 sub file_contents ($%)
7057 my ($basename, %transform) = @_;
7058 my ($comments, $variables, $rules) =
7059 file_contents_internal (1, "$libdir/am/$basename.am", %transform);
7060 return "$comments$variables$rules";
7065 # &transform (%PAIRS)
7066 # -------------------
7067 # Foreach ($TOKEN, $VAL) in %PAIRS produce a replacement expression suitable
7068 # for file_contents which:
7069 # - replaces @$TOKEN@ with $VALUE,
7070 # - enables/disables ?$TOKEN?.
7076 while (my ($token, $val) = each %pairs)
7078 $result .= "s/\Q%$token%\E/\Q$val\E/gm;";
7081 $result .= "s/\Q?$token?\E//gm;s/^.*\Q?!$token?\E.*\\n//gm;";
7082 $result .= "s/\Q%?$token%\E/TRUE/gm;";
7086 $result .= "s/\Q?!$token?\E//gm;s/^.*\Q?$token?\E.*\\n//gm;";
7087 $result .= "s/\Q%?$token%\E/FALSE/gm;";
7095 # Find all variable prefixes that are used for install directories. A
7096 # prefix `zar' qualifies iff:
7097 # * `zardir' is a variable.
7098 # * `zar_PRIMARY' is a variable.
7099 sub am_primary_prefixes
7101 my ($primary, $can_dist, @prefixes) = @_;
7103 my %valid = map { $_ => 0 } @prefixes;
7104 $valid{'EXTRA'} = 0;
7105 foreach my $varname (keys %var_value)
7107 # Automake is allowed to define variables that look like they
7108 # are magic variables, such as INSTALL_DATA.
7110 if $var_is_am{$varname};
7112 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_$primary$/)
7114 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7115 if ($dist ne '' && ! $can_dist)
7117 # Note that a configure variable is always legitimate.
7118 # It is natural to name such variables after the
7119 # primary, so we explicitly allow it.
7120 if (! defined $configure_vars{$varname})
7122 &am_line_error ($varname,
7123 "invalid variable `$varname': `dist' is forbidden");
7126 elsif (! defined $valid{$X} && ! &variable_defined ("${X}dir"))
7128 # Note that a configure variable is always legitimate.
7129 # It is natural to name such variables after the
7130 # primary, so we explicitly allow it.
7131 if (! defined $configure_vars{$varname})
7133 &am_line_error ($varname,
7134 "invalid variable `$varname'");
7139 # Ensure all extended prefixes are actually used.
7140 $valid{"$base$dist$X"} = 1;
7148 # Handle `where_HOW' variable magic. Does all lookups, generates
7149 # install code, and possibly generates code to define the primary
7150 # variable. The first argument is the name of the .am file to munge,
7151 # the second argument is the primary variable (eg HEADERS), and all
7152 # subsequent arguments are possible installation locations. Returns
7153 # list of all values of all _HOW targets.
7155 # FIXME: this should be rewritten to be cleaner. It should be broken
7156 # up into multiple functions.
7158 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7165 my $default_dist = 0;
7168 if ($args[0] eq '-noextra')
7172 elsif ($args[0] eq '-candist')
7176 elsif ($args[0] eq '-defaultdist')
7181 elsif ($args[0] !~ /^-/)
7188 my ($file, $primary, @prefixes) = @args;
7190 # Now that configure substitutions are allowed in where_HOW
7191 # variables, it is an error to actually define the primary. We
7192 # allow `JAVA', as it is customarily used to mean the Java
7193 # interpreter. This is but one of several Java hacks. Similarly,
7194 # `PYTHON' is customarily used to mean the Python interpreter.
7195 &am_line_error ($primary, "`$primary' is an anachronism")
7196 if &variable_defined ($primary)
7197 && ($primary ne 'JAVA' && $primary ne 'PYTHON');
7200 # Look for misspellings. It is an error to have a variable ending
7201 # in a "reserved" suffix whose prefix is unknown, eg
7202 # "bni_PROGRAMS". However, unusual prefixes are allowed if a
7203 # variable of the same name (with "dir" appended) exists. For
7204 # instance, if the variable "zardir" is defined, then
7205 # "zar_PROGRAMS" becomes valid. This is to provide a little extra
7206 # flexibility in those cases which need it.
7207 my %valid = &am_primary_prefixes ($primary, $can_dist, @prefixes);
7209 # If a primary includes a configure substitution, then the EXTRA_
7210 # form is required. Otherwise we can't properly do our job.
7212 my $warned_about_extra = 0;
7217 # True if the iteration is the first one. Used for instance to
7218 # output parts of the associated file only once.
7220 foreach my $X (sort keys %valid)
7222 my $one_name = $X . '_' . $primary;
7224 unless (&variable_defined ($one_name));
7226 my $strip_subdir = 1;
7227 # If subdir prefix should be preserved, do so.
7228 if ($X =~ /^nobase_/)
7234 my $nodir_name = $X;
7235 # If files should be distributed, do so.
7239 $dist_p = (($default_dist && $one_name !~ /^nodist_/)
7240 || (! $default_dist && $one_name =~ /^dist_/));
7241 $nodir_name =~ s/^(dist|nodist)_//;
7244 # Append actual contents of where_PRIMARY variable to
7246 foreach my $rcurs (&variable_value_as_list ($one_name, 'all'))
7248 # Skip configure substitutions. Possibly bogus.
7249 if ($rcurs =~ /^\@.*\@$/)
7253 if (! $warned_about_extra)
7255 $warned_about_extra = 1;
7256 &am_line_error ($one_name,
7257 "`$one_name' contains configure substitution, but shouldn't");
7260 # Check here to make sure variables defined in
7261 # configure.ac do not imply that EXTRA_PRIMARY
7263 elsif (! defined $configure_vars{$one_name})
7265 $require_extra = $one_name
7272 push (@result, $rcurs);
7275 # A blatant hack: we rewrite each _PROGRAMS primary to include
7276 # EXEEXT when in Cygwin32 mode. You might think we could
7277 # simply always use $(EXEEXT), since we define it as empty
7278 # when it isn't available. However, it isn't that simple.
7280 if ($seen_exeext && $primary eq 'PROGRAMS')
7282 my @conds = &variable_conditions ($one_name);
7285 foreach my $cond (@conds)
7287 my @one_binlist = ();
7288 my @condval = &variable_value_as_list ($one_name,
7290 foreach my $rcurs (@condval)
7292 if ($rcurs =~ /\./ || $rcurs =~ /^\@.*\@$/)
7294 push (@one_binlist, $rcurs);
7298 push (@one_binlist, $rcurs . '$(EXEEXT)');
7302 push (@condvals, $cond);
7303 push (@condvals, join (' ', @one_binlist));
7306 variable_delete ($one_name);
7309 my $cond = shift (@condvals);
7310 my @val = split (' ', shift (@condvals));
7311 &define_pretty_variable ($one_name, $cond, @val);
7315 # "EXTRA" shouldn't be used when generating clean targets,
7316 # all, or install targets.
7319 # We used to warn if EXTRA_FOO was defined uselessly,
7320 # but this was annoying.
7326 push (@check, '$(' . $one_name . ')');
7330 push (@used, '$(' . $one_name . ')');
7333 # Is this to be installed?
7334 my $install_p = $X ne 'noinst' && $X ne 'check';
7336 # If so, with install-exec? (or install-data?).
7337 my $exec_p = (defined $exec_dir_p {$X}
7341 # Singular form of $PRIMARY.
7342 (my $one_primary = $primary) =~ s/S$//;
7343 $output_rules .= &file_contents ($file,
7346 'PRIMARY' => $primary,
7347 'ONE_PRIMARY' => $one_primary,
7349 'NDIR' => $nodir_name,
7350 'BASE' => $strip_subdir,
7353 'INSTALL' => $install_p,
7354 'DIST' => $dist_p));
7359 # The JAVA variable is used as the name of the Java interpreter.
7360 # The PYTHON variable is used as the name of the Python interpreter.
7361 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7364 &define_pretty_variable ($primary, '', @used);
7365 $output_vars .= "\n";
7368 if ($require_extra && ! &variable_defined ('EXTRA_' . $primary))
7370 &am_line_error ($require_extra,
7371 "`$require_extra' contains configure substitution, but `EXTRA_$primary' not defined");
7374 # Push here because PRIMARY might be configure time determined.
7375 push (@all, '$(' . $primary . ')')
7376 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7378 # Make the result unique. This lets the user use conditionals in
7379 # a natural way, but still lets us program lazily -- we don't have
7380 # to worry about handling a particular object more than once.
7381 return uniq (sort @result);
7385 ################################################################
7387 # Each key in this hash is the name of a directory holding a
7388 # Makefile.in. These variables are local to `is_make_dir'.
7390 my $make_dirs_set = 0;
7395 if (! $make_dirs_set)
7397 foreach my $iter (@configure_input_files)
7399 $make_dirs{dirname ($iter)} = 1;
7401 # We also want to notice Makefile.in's.
7402 foreach my $iter (@other_input_files)
7404 if ($iter =~ /Makefile\.in$/)
7406 $make_dirs{dirname ($iter)} = 1;
7411 return defined $make_dirs{$dir};
7414 ################################################################
7416 # This variable is local to the "require file" set of functions.
7417 my @require_file_paths = ();
7419 # If a file name appears as a key in this hash, then it has already
7420 # been checked for. This variable is local to the "require file"
7422 %require_file_found = ();
7424 # See if we want to push this file onto dist_common. This function
7425 # encodes the rules for deciding when to do so.
7426 sub maybe_push_required_file
7428 my ($dir, $file, $fullfile) = @_;
7430 if ($dir eq $relative_dir)
7432 &push_dist_common ($file);
7434 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7436 # If we are doing the topmost directory, and the file is in a
7437 # subdir which does not have a Makefile, then we distribute it
7439 &push_dist_common ($fullfile);
7444 # &require_file_internal ($IS_CONFIGURE, $LINE, $MYSTRICT, @FILES)
7445 # ----------------------------------------------------------------
7446 # Verify that the file must exist in the current directory.
7447 # $MYSTRICT is the strictness level at which this file becomes required.
7449 # Must set require_file_paths before calling this function.
7450 # require_file_paths is set to hold a single directory (the one in
7451 # which the first file was found) before return.
7452 sub require_file_internal
7454 my ($is_configure, $line, $mystrict, @files) = @_;
7456 foreach my $file (@files)
7464 my $dangling_sym = 0;
7465 foreach my $dir (@require_file_paths)
7467 $fullfile = $dir . "/" . $file;
7468 $errdir = $dir unless $errdir;
7470 # Use different name for "error filename". Otherwise on
7471 # an error the bad file will be reported as eg
7472 # `../../install-sh' when using the default
7474 $errfile = $errdir . '/' . $file;
7476 if (-l $fullfile && ! -f $fullfile)
7481 elsif (-f $fullfile)
7484 &maybe_push_required_file ($dir, $file, $fullfile);
7490 # `--force-missing' only has an effect if `--add-missing' is
7492 if ($found_it && (! $add_missing || ! $force_missing))
7494 # Prune the path list.
7495 @require_file_paths = $save_dir;
7499 # If we've already looked for it, we're done. You might
7500 # wonder why we don't do this before searching for the
7501 # file. If we do that, then something like
7502 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7506 next if defined $require_file_found{$file};
7507 $require_file_found{$file} = 1;
7510 if ($strictness >= $mystrict)
7512 if ($dangling_sym && $add_missing)
7520 # Only install missing files according to our desired
7522 my $message = "required file `$errfile' not found";
7527 # Maybe run libtoolize.
7528 my @syslist = ('libtoolize', '--automake');
7529 push @syslist, '--copy'
7532 && grep ($_ eq $file, @libtoolize_files)
7533 && system (@syslist))
7535 $message = "installing `$errfile'";
7537 $trailer = "; cannot run `libtoolize': $!";
7539 elsif (-f ("$libdir/$file"))
7541 # Install the missing file. Symlink if we
7542 # can, copy if we must. Note: delete the file
7543 # first, in case it is a dangling symlink.
7544 $message = "installing `$errfile'";
7545 # Windows Perl will hang if we try to delete a
7546 # file that doesn't exist.
7547 unlink ($errfile) if -f $errfile;
7548 if ($symlink_exists && ! $copy_missing)
7550 if (! symlink ("$libdir/$file", $errfile))
7553 $trailer = "; error while making link: $!";
7556 elsif (system ('cp', "$libdir/$file", $errfile))
7559 $trailer = "\n error while copying";
7563 &maybe_push_required_file (dirname ($errfile),
7566 # Prune the path list.
7567 @require_file_paths = &dirname ($errfile);
7570 # If --force-missing was specified, and we have
7571 # actually found the file, then do nothing.
7573 if $found_it && $force_missing;
7579 # FIXME: allow actual file to be specified.
7580 &am_conf_line_warning ($configure_ac, $line,
7581 "$message$trailer");
7585 &am_line_warning ($line, "$message$trailer");
7592 # FIXME: allow actual file to be specified.
7593 &am_conf_line_error ($configure_ac, $line,
7594 "$message$trailer");
7598 &am_line_error ($line, "$message$trailer");
7606 # Like require_file_with_line, but error messages refer to
7607 # configure.ac, not the current Makefile.am.
7608 sub require_file_with_conf_line
7610 @require_file_paths = $relative_dir;
7611 &require_file_internal (1, @_);
7614 sub require_file_with_line
7616 @require_file_paths = $relative_dir;
7617 &require_file_internal (0, @_);
7622 @require_file_paths = $relative_dir;
7623 &require_file_internal (0, '', @_);
7626 # Require a file that is also required by Autoconf. Looks in
7627 # configuration path, as specified by AC_CONFIG_AUX_DIR.
7628 sub require_config_file
7630 @require_file_paths = @config_aux_path;
7631 &require_file_internal (1, '', @_);
7632 my $dir = $require_file_paths[0];
7633 @config_aux_path = @require_file_paths;
7634 # Avoid unsightly '/.'s.
7635 $config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
7638 # Assumes that the line number is in Makefile.am.
7639 sub require_conf_file_with_line
7641 @require_file_paths = @config_aux_path;
7642 &require_file_internal (0, @_);
7643 my $dir = $require_file_paths[0];
7644 @config_aux_path = @require_file_paths;
7645 # Avoid unsightly '/.'s.
7646 $config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
7649 # Assumes that the line number is in configure.ac.
7650 sub require_conf_file_with_conf_line
7652 @require_file_paths = @config_aux_path;
7653 &require_file_internal (1, @_);
7654 my $dir = $require_file_paths[0];
7655 @config_aux_path = @require_file_paths;
7656 # avoid unsightly '/.'s.
7657 $config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
7660 ################################################################
7662 # &require_build_directory ($DIRECTORY)
7663 # ------------------------------------
7664 # Emit rules to create $DIRECTORY if needed, and return
7665 # the file that any target requiring this directory should be made
7667 sub require_build_directory ($)
7669 my $directory = shift;
7670 my $dirstamp = "$directory/.dirstamp";
7672 # Don't emit the rule twice.
7673 if (! defined $directory_map{$directory})
7675 $directory_map{$directory} = 1;
7677 # Directory must be removed by `make distclean'.
7678 $compile_clean_files{$dirstamp} = $DIST_CLEAN;
7680 $output_rules .= ("$dirstamp:\n"
7681 . "\t\@\$(mkinstalldirs) $directory\n"
7682 . "\t\@: > $dirstamp\n");
7688 # &require_build_directory_maybe ($FILE)
7689 # --------------------------------------
7690 # If $FILE lies in a subdirectory, emit a rule to create this
7691 # directory and return the file that $FILE should be made
7692 # dependent upon. Otherwise, just return the empty string.
7693 sub require_build_directory_maybe ($)
7696 my $directory = dirname ($file);
7698 if ($directory ne '.')
7700 return &require_build_directory ($directory);
7708 ################################################################
7710 # Push a list of files onto dist_common.
7711 sub push_dist_common
7713 &prog_error ("push_dist_common run after handle_dist")
7714 if $handle_dist_run;
7715 macro_define ('DIST_COMMON', 1, '+', '', join (' ', @_), '');
7722 $strictness_name = $_[0];
7723 if ($strictness_name eq 'gnu')
7727 elsif ($strictness_name eq 'gnits')
7729 $strictness = $GNITS;
7731 elsif ($strictness_name eq 'foreign')
7733 $strictness = $FOREIGN;
7737 die "$me: level `$strictness_name' not recognized\n";
7742 ################################################################
7744 # Ensure a file exists.
7749 my $touch = new IO::File (">> $file");
7753 # Glob something. Do this to avoid indentation screwups everywhere we
7754 # want to glob. Gross!
7761 # Remove one level of brackets and strip leading spaces,
7762 # as does m4 to function arguments.
7768 my @letters = split //;
7777 next if $depth == 1;
7782 next if $depth == 0;
7783 # don't count orphan right brackets
7784 $depth = 0 if $depth < 0;
7788 return join '', @result;
7791 ################################################################
7793 # Print an error message and set exit status.
7796 warn "$me: ${am_file}.am: @_\n";
7800 # am_file_error ($FILE, @ARGS)
7801 # ----------------------------
7804 my ($file, @args) = @_;
7806 warn "$file: @args\n";
7812 my ($symbol, @args) = @_;
7814 if ($symbol && "$symbol" ne '-1')
7816 my $file = "${am_file}.am";
7818 if ($symbol =~ /^\d+$/)
7820 # SYMBOL is a line number, so just add the colon.
7821 $file .= ':' . $symbol;
7823 elsif (defined $var_line{$symbol})
7825 # SYMBOL is a variable defined in Makefile.am, so add the
7826 # line number we saved from there.
7827 $file .= ':' . $var_line{$symbol};
7829 elsif (defined $configure_vars{$symbol})
7831 # SYMBOL is a variable defined in configure.ac, so add the
7832 # appropriate line number.
7833 $file = $configure_vars{$symbol};
7837 # Couldn't find the line number.
7839 warn $file, ": @args\n";
7848 # Like am_error, but while scanning configure.ac.
7851 # FIXME: can run in subdirs.
7852 warn "$me: $configure_ac: @_\n";
7856 # Error message with line number referring to configure.ac.
7857 sub am_conf_line_error
7859 my ($file, $line, @args) = @_;
7863 warn "$file: $line: @args\n";
7868 &am_conf_error (@args);
7872 # Warning message with line number referring to configure.ac.
7873 # Does not affect exit_status
7874 sub am_conf_line_warning
7876 my $saved_exit_status = $exit_status;
7877 my $sig = $SIG{'__WARN__'};
7878 $SIG{'__WARN__'} = 'DEFAULT';
7879 am_conf_line_error (@_);
7880 $exit_status = $saved_exit_status;
7881 $SIG{'__WARN__'} = $sig;
7884 # Like am_line_error, but doesn't affect exit status.
7887 my $saved_exit_status = $exit_status;
7888 my $sig = $SIG{'__WARN__'};
7889 $SIG{'__WARN__'} = 'DEFAULT';
7891 $exit_status = $saved_exit_status;
7892 $SIG{'__WARN__'} = $sig;
7895 # Tell user where our aclocal.m4 is, but only once.
7896 sub keyed_aclocal_warning
7899 warn "$me: macro `$key' can be generated by `aclocal'\n";
7902 # Print usage information.
7906 Usage: $0 [OPTION] ... [Makefile]...
7908 Generate Makefile.in for configure from Makefile.am.
7911 --help print this help, then exit
7912 --version print version number, then exit
7913 -v, --verbose verbosely list files processed
7914 -o, --output-dir=DIR put generated Makefile.in's into DIR
7915 --no-force only update Makefile.in's that are out of date
7917 Dependency tracking:
7918 -i, --ignore-deps disable dependency tracking code
7919 --include-deps enable dependency tracking code
7922 --cygnus assume program is part of Cygnus-style tree
7923 --foreign set strictness to foreign
7924 --gnits set strictness to gnits
7925 --gnu set strictness to gnu
7928 -a, --add-missing add missing standard files to package
7929 --libdir=DIR directory storing library files
7930 -c, --copy with -a, copy missing files (default is symlink)
7931 -f, --force-missing force update of standard files
7936 foreach my $iter (sort ((@common_files, @common_sometimes)))
7938 push (@lcomm, $iter) unless $iter eq $last;
7943 print "\nFiles which are automatically distributed, if found:\n";
7944 format USAGE_FORMAT =
7945 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7946 $four[0], $four[1], $four[2], $four[3]
7948 $~ = "USAGE_FORMAT";
7951 my $rows = int(@lcomm / $cols);
7952 my $rest = @lcomm % $cols;
7963 for (my $y = 0; $y < $rows; $y++)
7965 @four = ("", "", "", "");
7966 for (my $x = 0; $x < $cols; $x++)
7968 last if $y + 1 == $rows && $x == $rest;
7970 my $idx = (($x > $rest)
7971 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
7975 $four[$x] = $lcomm[$idx];
7980 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
7987 # Print version information
7991 automake (GNU $PACKAGE) $VERSION
7992 Written by Tom Tromey <tromey\@cygnus.com>.
7994 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
7995 Free Software Foundation, Inc.
7996 This is free software; see the source for copying conditions. There is NO
7997 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.