diff options
Diffstat (limited to 'bin/automake.in')
| -rw-r--r-- | bin/automake.in | 303 |
1 files changed, 221 insertions, 82 deletions
diff --git a/bin/automake.in b/bin/automake.in index d356336c3..3433d3de7 100644 --- a/bin/automake.in +++ b/bin/automake.in @@ -31,9 +31,8 @@ use strict; BEGIN { - @Automake::perl_libdirs = ('@datadir@/@PACKAGE@-@APIVERSION@') - unless @Automake::perl_libdirs; - unshift @INC, @Automake::perl_libdirs; + unshift (@INC, '@datadir@/@PACKAGE@-@APIVERSION@') + unless $ENV{AUTOMAKE_UNINSTALLED}; # Override SHELL. This is required on DJGPP so that system() uses # bash, not COMMAND.COM which doesn't quote arguments properly. @@ -74,14 +73,68 @@ use Automake::Wrap 'makefile_wrap'; use Automake::Language; use File::Basename; use File::Spec; +use List::Util 'none'; use Carp; ## ----------------------- ## ## Subroutine prototypes. ## ## ----------------------- ## -#! Prototypes here will automatically be generated by the build system. - +sub append_exeext (&$); +sub check_gnits_standards (); +sub check_gnu_standards (); +sub check_trailing_slash ($\$); +sub check_typos (); +sub define_files_variable ($\@$$); +sub define_standard_variables (); +sub define_verbose_libtool (); +sub define_verbose_texinfo (); +sub do_check_merge_target (); +sub get_number_of_threads (); +sub handle_compile (); +sub handle_data (); +sub handle_dist (); +sub handle_emacs_lisp (); +sub handle_factored_dependencies (); +sub handle_footer (); +sub handle_gettext (); +sub handle_headers (); +sub handle_install (); +sub handle_java (); +sub handle_languages (); +sub handle_libraries (); +sub handle_libtool (); +sub handle_ltlibraries (); +sub handle_makefiles_serial (); +sub handle_man_pages (); +sub handle_minor_options (); +sub handle_options (); +sub handle_programs (); +sub handle_python (); +sub handle_scripts (); +sub handle_silent (); +sub handle_subdirs (); +sub handle_tags (); +sub handle_targets (); +sub handle_tests (); +sub handle_tests_dejagnu (); +sub handle_texinfo (); +sub handle_user_recursion (); +sub initialize_per_input (); +sub lang_lex_finish (); +sub lang_sub_obj (); +sub lang_vala_finish (); +sub lang_yacc_finish (); +sub locate_aux_dir (); +sub parse_arguments (); +sub scan_aclocal_m4 (); +sub scan_autoconf_files (); +sub silent_flag (); +sub transform ($\%); +sub transform_token ($\%$); +sub usage (); +sub version (); +sub yacc_lex_finish_helper (); ## ----------- ## ## Constants. ## @@ -472,6 +525,15 @@ my %dep_files; # This is a list of all targets to run during "make dist". my @dist_targets; +# List of all programs, libraries and ltlibraries as returned +# by am_install_var +my @proglist; +my @liblist; +my @ltliblist; +# Blacklist of targets (as canonical base name) for which object file names +# may not be automatically shortened +my @dup_shortnames; + # Keep track of all programs declared in this Makefile, without # $(EXEEXT). @substitutions@ are not listed. my %known_programs; @@ -592,6 +654,11 @@ sub initialize_per_input () @dist_common = (); $handle_dist_run = 0; + @proglist = (); + @liblist = (); + @ltliblist = (); + @dup_shortnames = (); + %known_programs = (); %known_libraries = (); @@ -1230,48 +1297,50 @@ sub check_user_variables sub handle_languages () { if (! option 'no-dependencies') - { - # Include auto-dep code. Don't include it if DEP_FILES would - # be empty. - if (keys %extension_seen && keys %dep_files) - { - # Set location of depcomp. - define_variable ('depcomp', - "\$(SHELL) $am_config_aux_dir/depcomp", - INTERNAL); - define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL); - - require_conf_file ("$am_file.am", FOREIGN, 'depcomp'); - - my @deplist = sort keys %dep_files; - # Generate each 'include' individually. Irix 6 make will - # not properly include several files resulting from a - # variable expansion; generating many separate includes - # seems safest. - $output_rules .= "\n"; - foreach my $iter (@deplist) - { - $output_rules .= (subst ('AMDEP_TRUE') - . subst ('am__include') - . ' ' - . subst ('am__quote') - . $iter - . subst ('am__quote') - . "\n"); - } - - # Compute the set of directories to remove in distclean-depend. - my @depdirs = uniq (map { dirname ($_) } @deplist); - $output_rules .= file_contents ('depend', - new Automake::Location, - DEPDIRS => "@depdirs"); - } - } + { + # Include auto-dep code. Don't include it if DEP_FILES would + # be empty. + if (keys %extension_seen && keys %dep_files) + { + my @dep_files = sort keys %dep_files; + # Set location of depcomp. + define_variable ('depcomp', + "\$(SHELL) $am_config_aux_dir/depcomp", + INTERNAL); + define_variable ('am__maybe_remake_depfiles', 'depfiles', INTERNAL); + define_variable ('am__depfiles_remade', "@dep_files", INTERNAL); + $output_rules .= "\n"; + my @dist_rms; + foreach my $depfile (@dep_files) + { + push @dist_rms, "\t-rm -f $depfile"; + # Generate each 'include' directive individually. Several + # make implementations (IRIX 6, Solaris 10, FreeBSD 8) will + # fail to properly include several files resulting from a + # variable expansion. Just Generating many separate includes + # seems thus safest. + $output_rules .= subst ('AMDEP_TRUE') . + subst ('am__include') . + " " . + subst('am__quote') . + $depfile . + subst('am__quote') . + " " . + "# am--include-marker\n"; + } + + require_conf_file ("$am_file.am", FOREIGN, 'depcomp'); + + $output_rules .= file_contents ( + 'depend', new Automake::Location, + 'DISTRMS' => join ("\n", @dist_rms)); + } + } else - { - define_variable ('depcomp', '', INTERNAL); - define_variable ('am__depfiles_maybe', '', INTERNAL); - } + { + define_variable ('depcomp', '', INTERNAL); + define_variable ('am__maybe_remake_depfiles', '', INTERNAL); + } my %done; @@ -1615,9 +1684,9 @@ sub handle_single_transform my $renamed = 0; my ($linker, $object); - # This records whether we've seen a derived source file (e.g. - # yacc output). - my $derived_source = 0; + # This records whether we've seen a derived source file (e.g., yacc + # or lex output). + my $derived_source; # This holds the 'aggregate context' of the file we are # currently examining. If the file is compiled with @@ -1665,17 +1734,36 @@ sub handle_single_transform # Now extract linker and other info. $linker = $lang->linker; - my $this_obj_ext; - if (defined $source_extension) - { - $this_obj_ext = $source_extension; - $derived_source = 1; - } - else - { - $this_obj_ext = $obj; - } - $object = $base . $this_obj_ext; + my $this_obj_ext; + if (defined $source_extension) + { + $this_obj_ext = $source_extension; + $derived_source = 1; + } + else + { + $this_obj_ext = $obj; + $derived_source = 0; + # Don't ever place built object files in $(srcdir), + # even when sources are specified explicitly as (say) + # '$(srcdir)/foo.c' or '$(top_srcdir)/foo.c'. + # See automake bug#13928. + my @d = split '/', $directory; + if (@d > 0 && option 'subdir-objects') + { + my $d = $d[0]; + if ($d eq '$(srcdir)' or $d eq '${srcdir}') + { + shift @d; + } + elsif ($d eq '$(top_srcdir)' or $d eq '${top_srcdir}') + { + $d[0] = '$(top_builddir)'; + } + $directory = join '/', @d; + } + } + $object = $base . $this_obj_ext; if ($have_per_exec_flags) { @@ -1683,14 +1771,48 @@ sub handle_single_transform # object. In this case we rewrite the object's # name to ensure it is unique. - # We choose the name 'DERIVED_OBJECT' to ensure - # (1) uniqueness, and (2) continuity between - # invocations. However, this will result in a - # name that is too long for losing systems, in - # some situations. So we provide _SHORTNAME to - # override. - - my $dname = $derived; + # We choose the name 'DERIVED_OBJECT' to ensure (1) uniqueness, + # and (2) continuity between invocations. However, this will + # result in a name that is too long for losing systems, in some + # situations. So we attempt to shorten automatically under + # subdir-objects, and provide _SHORTNAME to override as a last + # resort. If subdir-object is in effect, it's usually + # unnecessary to use the complete 'DERIVED_OBJECT' (that is + # often the result from %canon_reldir%/%C% usage) since objects + # are placed next to their source file. Generally, this means + # it is already unique within that directory (see below for an + # exception). Thus, we try to avoid unnecessarily long file + # names by stripping the directory components of + # 'DERIVED_OBJECT'. This allows avoiding explicit _SHORTNAME + # usage in many cases. EXCEPTION: If two (or more) targets in + # different directories but with the same base name (after + # canonicalization), using target-specific FLAGS, link the same + # object, then this logic clashes. Thus, we don't strip if + # this is detected. + my $dname = $derived; + if ($directory ne '' + && option 'subdir-objects' + && none { $dname =~ /$_$/ } @dup_shortnames) + { + # At this point, we don't clear information about what + # parts of $derived are truly file name components. We can + # determine that by comparing against the canonicalization + # of $directory. + my $dir = $directory . "/"; + my $cdir = canonicalize ($dir); + my $dir_len = length ($dir); + # Make sure we only strip full file name components. This + # is done by repeatedly trying to find cdir at the + # beginning. Each iteration removes one file name + # component from the end of cdir. + while ($dir_len > 0 && index ($derived, $cdir) != 0) + { + # Eventually $dir_len becomes 0. + $dir_len = rindex ($dir, "/", $dir_len - 2) + 1; + $cdir = substr ($cdir, 0, $dir_len); + } + $dname = substr ($derived, $dir_len); + } my $var = var ($derived . '_SHORTNAME'); if ($var) { @@ -1708,8 +1830,7 @@ sub handle_single_transform $renamed = 1; } - # If rewrite said it was ok, put the object into a - # subdir. + # If rewrite said it was ok, put the object into a subdir. if ($directory ne '') { if ($r == LANG_SUBDIR) @@ -2237,9 +2358,8 @@ sub handle_LIBOBJS_or_ALLOCA if $relative_dir ne '.'; define_variable ('LIBOBJDIR', "$dir", INTERNAL); $clean_files{"\$($var)"} = MOSTLY_CLEAN; - # If LTLIBOBJS is used, we must also clear LIBOBJS (which might - # be created by libtool as a side-effect of creating LTLIBOBJS). - $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//; + # libtool might create LIBOBJS as a side-effect of using LTLIBOBJS. + $clean_files{"\$(LIBOBJS)"} = MOSTLY_CLEAN if $var eq "LTLIBOBJS"; } else { @@ -2412,12 +2532,33 @@ sub handle_libtool () LTRMS => join ("\n", @libtool_rms)); } +# Check for duplicate targets +sub handle_targets () +{ + my %seen = (); + my @dups = (); + @proglist = am_install_var ('progs', 'PROGRAMS', + 'bin', 'sbin', 'libexec', 'pkglibexec', + 'noinst', 'check'); + @liblist = am_install_var ('libs', 'LIBRARIES', + 'lib', 'pkglib', 'noinst', 'check'); + @ltliblist = am_install_var ('ltlib', 'LTLIBRARIES', + 'noinst', 'lib', 'pkglib', 'check'); + + # Record duplications that may arise after canonicalization of the + # base names, in order to prevent object file clashes in the presence + # of target-specific *FLAGS + my @targetlist = (@proglist, @liblist, @ltliblist); + foreach my $pair (@targetlist) + { + my $base = canonicalize (basename (@$pair[1])); + push (@dup_shortnames, $base) if ($seen{$base}); + $seen{$base} = $base; + } +} sub handle_programs () { - my @proglist = am_install_var ('progs', 'PROGRAMS', - 'bin', 'sbin', 'libexec', 'pkglibexec', - 'noinst', 'check'); return if ! @proglist; $must_handle_compiled_objects = 1; @@ -2504,8 +2645,6 @@ sub handle_programs () sub handle_libraries () { - my @liblist = am_install_var ('libs', 'LIBRARIES', - 'lib', 'pkglib', 'noinst', 'check'); return if ! @liblist; $must_handle_compiled_objects = 1; @@ -2614,9 +2753,7 @@ sub handle_libraries () sub handle_ltlibraries () { - my @liblist = am_install_var ('ltlib', 'LTLIBRARIES', - 'noinst', 'lib', 'pkglib', 'check'); - return if ! @liblist; + return if ! @ltliblist; $must_handle_compiled_objects = 1; my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib', @@ -2709,7 +2846,7 @@ sub handle_ltlibraries () skip_ac_subst => 1); } - foreach my $pair (@liblist) + foreach my $pair (@ltliblist) { my ($where, $onelib) = @$pair; @@ -7773,6 +7910,8 @@ sub generate_makefile handle_configure ($makefile_am, $makefile_in, $makefile, @inputs); handle_gettext; + + handle_targets; handle_libraries; handle_ltlibraries; handle_programs; |