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