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andreas |
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#!/usr/bin/env perl
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# this script patches a config.status file, to use our own perl script
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# in the main loop
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# we do it this way to circumvent hacking (and thereby including)
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# autoconf function (which are GPL) into our LGPL acinclude.m4.in
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# written by Michael Matz <matz@kde.org>
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# adapted by Dirk Mueller <mueller@kde.org>
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#
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# This file is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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# You should have received a copy of the GNU Library General Public License
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# along with this library; see the file COPYING.LIB. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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# we have to change two places
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# 1. the splitting of the substitutions into chunks of 90 (or even 48 in
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# later autoconf's
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# 2. the big main loop which patches all Makefile.in's
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use strict;
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use File::Basename;
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my $ac_aux_dir = dirname($0);
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my ($flag);
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my $ac_version = 0;
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my $vpath_seen = 0;
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$flag = 0;
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while (<>) {
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# usage of $flag: 0 -- we have seen nothing yet
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# 1 -- we are in (1)
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# 2 -- we have ended (1)
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# 3 -- we are in (2)
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# 4 -- we ended (2)
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if ($flag == 4) {
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print;
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} elsif ($flag == 0) {
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# 1. begins with (including): "ac_max_sed_\S+\s*=\s*[0-9]+..."
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# ends with (excluding) "CONFIG_FILE=..."
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# in later autoconf (2.14.1) there is no CONFIG_FILES= line,
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# but instead the (2) directly follow (1)
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if (/^\s*ac_max_sed_([a-z]+).*=\s*([0-9]+)/ ) {
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$flag = 1;
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if ($1 eq 'lines') {
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# lets hope its different with 2141,
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# wasn't able to verify that
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if ($2 eq '48') {
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$ac_version = 250;
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}
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else {
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$ac_version = 2141;
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}
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} elsif ($1 eq 'cmds') {
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$ac_version = 213;
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}
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# hmm, we don't know the autoconf version, but we try anyway
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} else {
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print;
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}
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} elsif ($flag == 1) {
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if (/^\s*CONFIG_FILES=/ && ($ac_version != 250)) {
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print;
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$flag = 2;
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} elsif (/^\s*for\s+ac_file\s+in\s+.*CONFIG_FILES/ ) {
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$flag = 3;
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}
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} elsif ($flag == 2) {
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# 2. begins with: "for ac_file in.*CONFIG_FILES" (the next 'for' after (1))
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# end with: "rm -f conftest.s\*"
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# on autoconf 250, it ends with '# CONFIG_HEADER section'
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#
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# gg: if a post-processing commands section is found first,
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# stop there and insert a new loop to honor the case/esac.
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# (pattern: /^\s+#\sRun the commands associated with the file./)
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if (/^\s*for\s+ac_file\s+in\s+.*CONFIG_FILES/ ) {
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$flag = 3;
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} else {
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print;
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}
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} elsif ($flag == 3) {
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if (/^\s*rm\s+-f\s+conftest/ ) {
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$flag = 4;
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&insert_main_loop();
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} elsif (/^\s*rm\s+-f\s+.*ac_cs_root/ ) {
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$flag = 4;
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&insert_main_loop();
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#die "hhhhhhh";
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if ($ac_version != 2141) {
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print STDERR "hmm, don't know autoconf version\n";
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}
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} elsif (/^\#\s*CONFIG_(HEADER|COMMANDS) section.*|^\s+#\s(Run) the commands associated/) {
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$flag = 4;
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my $commands = defined $2;
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&insert_main_loop();
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$commands && insert_command_loop();
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if($ac_version != 250) {
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print STDERR "hmm, something went wrong :-(\n";
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}
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} elsif (/VPATH/ ) {
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$vpath_seen = 1;
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}
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}
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}
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die "wrong input (flag != 4)" unless $flag == 4;
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print STDERR "hmm, don't know autoconf version\n" unless $ac_version;
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sub insert_main_loop {
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if ($ac_version == 250) {
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&insert_main_loop_250();
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}
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else {
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&insert_main_loop_213();
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}
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}
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sub insert_main_loop_250 {
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print <<EOF;
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#echo Doing the fast build of Makefiles -- autoconf $ac_version
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EOF
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if ($vpath_seen) {
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print <<EOF;
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# VPATH subst was seen in original config.status main loop
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echo '/^[ ]*VPATH[ ]*=[^:]*\$/d' >>\$tmp/subs.sed
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EOF
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}
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print <<EOF;
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rm -f \$tmp/subs.files
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for ac_file in .. \$CONFIG_FILES ; do
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if test "x\$ac_file" != x..; then
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echo \$ac_file >> \$tmp/subs.files
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fi
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done
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if test -f \$tmp/subs.files ; then
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perl $ac_aux_dir/config.pl "\$tmp/subs.sed" "\$tmp/subs.files" "\$srcdir" "\$INSTALL"
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fi
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rm -f \$tmp/subs.files
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fi
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EOF
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return;
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}
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sub insert_main_loop_213 {
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print <<EOF;
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#echo Doing the fast build of Makefiles -- autoconf $ac_version
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if test "x\$ac_cs_root" = "x" ; then
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ac_cs_root=conftest
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fi
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EOF
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if ($vpath_seen) {
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print <<EOF;
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# VPATH subst was seen in original config.status main loop
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echo '/^[ ]*VPATH[ ]*=[^:]*\$/d' >> \$ac_cs_root.subs
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EOF
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}
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print <<EOF;
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rm -f \$ac_cs_root.sacfiles
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for ac_file in .. \$CONFIG_FILES ; do
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if test "x\$ac_file" != x..; then
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echo \$ac_file >> \$ac_cs_root.sacfiles
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fi
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done
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if test -f \$ac_cs_root.sacfiles ; then
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perl $ac_aux_dir/config.pl "\$ac_cs_root.subs" "\$ac_cs_root.sacfiles" "\$ac_given_srcdir" "\$ac_given_INSTALL"
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fi
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rm -f \$ac_cs_root.s*
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EOF
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return;
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}
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sub insert_command_loop {
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print <<EOF;
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for ac_file in .. \$CONFIG_FILES ; do
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EOF
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}
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