+++ /dev/null
-#!/usr/bin/env perl
-#
-# Copyright © 2011-2012 Nick Bowler
-#
-# Prepare the Gnulib tree for inclusion into a non-recursive automake build.
-# While the output of gnulib-tool is "include"-able if the --makefile-name
-# option is used, it is still not suitable for non-recursive use for a couple
-# reasons; chief among them is that filenames are not relative to the top
-# source directory.
-#
-# This script postprocesses the gnulib-tool output to produce something that
-# is intended to be suitable for inclusion into such non-recursive build
-# environments. Since the integration involves both configure.ac and
-# Makefile.am, the output must be included into _both_. Supposing the output
-# is written to lib/gnulib.mk, you would add:
-#
-# m4_include([lib/gnulib.mk]) # to configure.ac, after any call to gl_INIT
-# include $(top_srcdir)/lib/gnulib.mk # to Makefile.am
-#
-# You must also arrange for the Gnulib-generated header files to be built
-# before the object files which depend on them; the most robust way to do this
-# is by explicit prerequisites, for example:
-#
-# bin_PROGRAMS = foo
-# $(foo_OBJECTS): $(gnulib_headers)
-#
-# The $(gnulib_headers) variable will expand to GNU-make order-only
-# prerequisites when available, avoiding spurious incremental rebuilds when
-# unused headers are changed. If this feature is not available, it will
-# expand to ordinary prerequisites. It is therefore only appropriate for use
-# in target prerequisites; the $(gnulib_raw_headers) variable may be used in
-# other contexts when only the list of header files is required.
-#
-# This script also provides machinery for Gnulib symbol renaming via the
-# glconfig.mk Makefile.am snippet; use of this feature is optional.
-#
-# Most of the specific transformations are documented below.
-#
-# License WTFPL2: Do What The Fuck You Want To Public License, version 2.
-# This is free software: you are free to do what the fuck you want to.
-# There is NO WARRANTY, to the extent permitted by law.
-
-use strict;
-use List::Compare;
-use Getopt::Long;
-
-my $output = undef;
-my $input = undef;
-
-my $line = 0;
-
-Getopt::Long::Configure("gnu_getopt", "no_auto_abbrev");
-GetOptions(
- "o|output=s" => \$output,
- "i|input=s" => \$input,
-);
-
-open STDOUT, ">", $output or die "$output: $!\n" if (defined $output);
-open STDIN, "<", $input or die "$input: $!\n" if (defined $input);
-
-my $printed_header = 0;
-my (%allvars, %sourcevars);
-my @cleanfiles;
-
-sub drop {
- undef $_;
- next;
-}
-
-sub basename {
- my $file = shift;
- $file =~ m|(?:.+/)?([^/]+)/?|;
- return $1;
-}
-
-sub mangle_file {
- my $word = shift;
-
- if ($word =~ /^\$\(([[:word:].]+)\)$/) {
- # Don't touch variables now, but record them for later.
- $sourcevars{$1} = 1;
- } elsif ($word =~ /^\$\((?:top_)?(?:srcdir|builddir)\)/) {
- # Do nothing. Generic transformation will take care of
- # $(srcdir) and $(builddir).
- } elsif ($word =~ /^[[:word:].+\/-]+$/) {
- # Fix up things that look like filenames.
- $word = "lib/$word";
- } else {
- print STDERR "$0:$line: warning: unrecognized source file: $word\n";
- }
-
- return "$word";
-}
-
-sub mangle_variable {
- my $raw = shift;
-
- $raw =~ /([^=]+=)[[:space:]]*(.*)/s;
- my ($left, @right) = ($1, split(/[[:space:]]+/, $2));
-
- return join(" ", ($left, map(mangle_file($_), @right))) . "\n";
-}
-
-sub mangle_target {
- my $raw = shift;
-
- $raw =~ /([^:]+):[[:space:]]*(.*)/s;
- my @left = split(/[[:space:]]+/, $1);
- my @right = split(/[[:space:]]+/, $2);
-
- @left = map(mangle_file($_), @left);
- @right = map(mangle_file($_), @right);
-
- return join(" ", @left) . ": " . join(" ", @right) . "\n";
-}
-
-while (<STDIN>) {
- $line++;
-
- # Combine line splices.
- while (s/\\$//) {
- $line++;
- $_ = $_ . <STDIN>
- }
-
- next if (/^#/);
-
- if (!$printed_header) {
- print "# Postprocessed by ", basename($0), "\n\n";
- print <<'EOF';
-# BEGIN AUTOMAKE/M4 POLYGLOT \
-m4_unquote(m4_argn([2], [
-.PHONY: # Automake code follows
-
-# This trick should define gnulib_orderonly to | iff we're using GNU make.
-gnulib_have_orderonly = $(findstring order-only,$(.FEATURES))
-gnulib_orderonly = $(gnulib_have_orderonly:order-only=|)
-gnulib_core_headers =
-gnulib_raw_headers = $(gnulib_core_headers)
-gnulib_headers = $(gnulib_orderonly) $(gnulib_raw_headers)
-EOF
-
- $printed_header = 1;
- drop;
- }
-
- # For some reason, gnulib-tool adds core dumps to "make mostlyclean".
- # Since these files are (hopefully!) not created by make, they should
- # not be cleaned.
- drop if (/^MOSTLYCLEANFILES.*core/);
-
- # Some modules set AM_CPPFLAGS/AM_CFLAGS/etc. in a manner that is not
- # useful for non-recursive builds. Strip them out.
- drop if (/^(AM_CPPFLAGS|AM_CFLAGS)/);
-
- # Library dependencies are added automatically to libgnu.la by
- # gnulib-tool. Unfortunately, this means that everything linking
- # against libgnu.la is forced to pull in the same deps, even if they're
- # unneeded. Furthermore, a libtool linker flag reordering bug prevents
- # --as-needed from stripping out the useless deps, so it's better to
- # handle them all manually.
- drop if (/LDFLAGS/);
-
- # Rewrite automake hook targets to be more generic.
- if (s/^(.*)-local:/\1-gnulib:/) {
- print ".PHONY: $1-gnulib\n";
- print "$1-local: $1-gnulib\n";
- s/$1-generic//;
-
- # Don't let these targets get confused with filenames below.
- next;
- }
-
- # We need to mangle filenames in make variables; prepending a lib/ on
- # relative paths. The following should catch all variable assignments
- # that need mangling.
- if (/^([[:word:]]+)[[:space:]]*\+?=/) {
- $allvars{$1} = 1;
-
- if (/_SOURCES|CLEANFILES|EXTRA_DIST|[[:upper:]]+_H/) {
- $_ = mangle_variable($_);
- }
- }
-
- # BUILT_SOURCES has similar problems to recursive make: inadequate
- # dependencies lead to incorrect builds. Collect them into an
- # ordinary variable so we can deal with them later.
- s/BUILT_SOURCES/gnulib_core_headers/;
-
- # Targets are similar to variables: the target and its dependencies
- # need to be mangled.
- if (/^[^\t].*:/) {
- $_ = mangle_target($_);
- }
-
- # When using conditional-dependencies, *CLEANFILES can end up
- # depending on the configuration. This means that "make distclean"
- # may not actually delete everything if the configuration changes
- # after building the package. Stash all the variables for later so
- # they can be moved outside of any conditional.
- if (/CLEANFILES/) {
- push(@cleanfiles, $_);
- drop;
- }
-
- # Finally, references to $(srcdir) and $(builddir) need to be fixed up.
- s:\$\(srcdir\):\$\(top_srcdir\)/lib:g;
- s:\$\(builddir\):\$\(top_builddir\)/lib:g;
-} continue { s/(\n.)/\\\1/g; print; };
-
-print <<'EOF';
-gnulib_lt_objects = $(libgnu_la_OBJECTS) $(gl_LTLIBOBJS)
-$(gnulib_lt_objects): $(gnulib_headers)
-EOF
-print @cleanfiles;
-
-# Some filenames are AC_SUBSTed by the Gnulib macros, and thus we need to
-# prepend lib/ if and only if they're not empty. Unfortunately, make is not
-# powerful to do this, so we need to put this transformation into configure
-# itself by defining a new autoconf macro.
-
-my $lc = List::Compare->new('-u', '-a', \%sourcevars, \%allvars);
-my @vars = $lc->get_unique;
-
-print <<'EOF';
-if FALSE
-], [dnl M4 code follows
-
-AC_SUBST([GLSRC], [lib])
-AC_DEFUN_ONCE([DX_GLSYM_PREFIX], [AC_SUBST([GLSYM_PREFIX], [$1])])
-AC_CONFIG_COMMANDS_PRE([DX_GLSYM_PREFIX([${PACKAGE}__])])
-
-m4_foreach([gl_objvar], [[gl_LIBOBJS], [gl_LTLIBOBJS]], [dnl
-set x $gl_objvar; shift
-gl_objvar=
-while test ${#} -gt 0; do
- gl_objvar="$gl_objvar lib/${1}"; shift
-done
-])
-EOF
-
-foreach (@vars) {
- print "$_=\${$_:+lib/\$$_}\n";
-}
-
-print <<'EOF';
-], [
-endif
-# ]))dnl
-# END AUTOMAKE/M4 POLYGLOT
-EOF
+++ /dev/null
-# Copyright © 2011 Nick Bowler
-#
-# Automake fragment to generate a Gnulib config header to rewrite exported
-# symbols. This fragment relies on the Gnulib makefile postprocessing done by
-# fix-gnulib.pl. Furthermore, the following additions to configure.ac may be
-# required:
-#
-# * Add AM_PROC_CC_C_O to configure.ac
-# * Pass the desired symbol prefix to DX_GLSYM_PREFIX in configure.ac,
-# after including the fix-gnulib.pl output.
-#
-# License WTFPL2: Do What The Fuck You Want To Public License, version 2.
-# This is free software: you are free to do what the fuck you want to.
-# There is NO WARRANTY, to the extent permitted by law.
-
-GLCONFIG = @GLSRC@/glconfig.h
-GLCAT = cat /dev/null
-
-GLSYM_V = $(GLSYM_V_$(V))
-GLSYM_V_ = $(GLSYM_V_$(AM_DEFAULT_VERBOSITY))
-GLSYM_V_0 = @echo " GLSYM " $<;
-
-gnulib_symfiles = $(gnulib_lt_objects:.lo=.glsym)
-gnulib_headers += $(GLCONFIG)
-
-# This suffix rule triggers symbol generation only on demand. Dependencies are
-# not tracked directly, so it must remain phony and thus not create the target.
-.c.glsym:
- $(GLSYM_V) $(MKDIR_P) $(@D)/.syms
- $(AM_V_at) depfile=$(@D)/.syms/$(*F).deps \
- source=$< object=$(GLCONFIG) $(CCDEPMODE) \
- $(depcomp) $(COMPILE) -DNO_GLCONFIG \
- -c -o $(@D)/.syms/$(*F).o $<
- $(AM_V_at) $(SHELL) $(top_builddir)/exported.sh \
- $(@D)/.syms/$(*F).o > $(@D)/.syms/$(*F).sym
-$(gnulib_symfiles): $(gnulib_core_headers)
-
-clean-local: clean-glconfig
-clean-glconfig:
- @for sym in $(libgnu_la_SOURCES) $(EXTRA_libgnu_la_SOURCES); do \
- symdir=`expr "$$sym" : '\(.*/\)'`.syms; \
- if test -d "$$symdir"; then \
- echo "rm -rf $$symdir"; rm -rf "$$symdir"; \
- fi; \
- done
-.PHONY: clean-glconfig
-
-# The config header requires compilation of all gnulib object files via the
-# .glsym rule above. However, it cannot depend on those build products
-# directly because they are phony, and would make this header never up-to-date.
-#
-# Thus, we use a recursive make call to regenerate the header, which avoids
-# the need to list prerequisites.
-#
-# Since GNU make does not appear to allow the target of a suffix rule to be
-# marked .PHONY, we also delete the .glsym files here just in case they were
-# created for some reason (e.g., make -t).
-$(GLCONFIG): $(gnulib_core_headers)
- -$(AM_V_at) rm -f $(gnulib_symfiles)
- $(AM_V_at) $(MAKE) $(AM_MAKEFLAGS) glconfig-gen
- $(AM_V_GEN) mv -f $@.tmp $@
-CLEANFILES += $(GLCONFIG)
-
-# The glconfig-gen target is intended only for use in recursive make
-# invocations.
-glconfig-gen: $(gnulib_symfiles)
- $(AM_V_at) depfiles=; symfiles=; \
- for sym in $(gnulib_symfiles); do \
- symdir=`expr "$$sym" : '\(.*/\)'`; \
- symfile=`expr "$$sym" : '.*/\(.*\)' || printf '%s\n' "$$sym"`; \
- symbase=$$symdir.syms/`expr "$$symfile" : '\(.*\)\..*'`; \
- test -f "$$symbase.deps" && \
- depfiles="$$depfiles $$symbase.deps"; \
- symfiles="$$symfiles $$symbase.sym"; \
- done; \
- $(GLCAT) $$depfiles > @GLSRC@/$(DEPDIR)/glconfig.Ph && \
- $(GLCAT) $$symfiles | sed 's/.*/#define & $(GLSYM_PREFIX)&/' \
- > $(GLCONFIG).tmp
-.PHONY: glconfig-gen
-
-@AMDEP_TRUE@@am__include@ @am__quote@@GLSRC@/$(DEPDIR)/glconfig.Ph@am__quote@
projects / cdecl99.git / commitdiff