Punt perl version of wrapper in favor of bash by Gregorio Guidi #66478.am-1

2 files changed, 120 insertions, 137 deletions

diff --git a/am-wrapper.pl b/am-wrapper.pl
deleted file mode 100755
index 4deff78..0000000
--- a/am-wrapper.pl
+++ /dev/null
@@ -1,137 +0,0 @@
-#!/usr/bin/perl
-#
-#
-# Author: Guillaume Cottenceau (gc@mandrakesoft.com)
-# Modified by: Martin Schlemmer (azarah@gentoo.org)
-#
-# Copyright 2001 MandrakeSoft
-#
-# This software may be freely redistributed under the terms of the GNU
-# public license.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-#
-# Executes the correct autoconf version.
-#
-# - defaults to automake-1.4
-# - runs automake-1.8 if it exists and...
-#   - envvar WANT_AUTOMAKE is set to `1.8'
-#     -or-
-#   - `Makefile.in' was generated by automake-1.8 or superior, which
-#     specifically needs automake-1.8
-#     -or_
-#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.8
-# - runs automake-1.7 if it exists and...
-#   - envvar WANT_AUTOMAKE is set to `1.7'
-#     -or-
-#   - `Makefile.in' was generated by automake-1.7 or superior, which
-#     specifically needs automake-1.7
-#     -or-
-#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifyint the use of 1.7
-#     -or-
-# - runs automake-1.6 if it exists and...
-#   - envvar WANT_AUTOMAKE is set to `1.6'
-#     -or-
-#   - `Makefile.in' was generated by automake-1.6 or superior, which
-#     specifically needs automake-1.6
-#     -or-
-#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifyint the use of 1.6
-#     -or-
-#   - `configure.in' contains AC_PREREQ and the value's 3 first letters
-#      are stringwise greater than '2.53c'
-#     -or-
-#   - `configure' is already present and was generated by autoconf greater than
-#     '2.53c'
-# - runs automake-1.5 if it exists and...
-#   - envvar WANT_AUTOMAKE is set to `1.5'
-#     -or-
-#   - configure.ac is present
-#     -or-
-#   - `configure.in' contains AC_PREREQ and the value's 3 first letters
-#      are stringwise greater than '2.13'
-#     -or-
-#   - `configure' is already present and was generated by autoconf greater than
-#     '2.13'
-#     -or-
-#   - `Makefile.in' was generated by automake-1.5 or superior, which
-#     specifically needs automake-1.5
-#
-#use MDK::Common;
-
-sub cat_ { local *F; open F, $_[0] or return; my @l = <F>; wantarray ? @l : join '', @l }
-sub am_version {
-	my $file = cat_(shift);
-	return (@versions = $file =~ /^\s*\[?AM_AUTOMAKE_VERSION\(\[?([^\)]{3}[0-9]?)[^\)]*\]?\)/mg) ? ((sort @versions)[-1]) : '';
-}
-sub ac_version {
-	my $file = cat_(shift);
-	return (@versions = $file =~ /^\s*\[?AC_PREREQ\(\[?([^\)]{3}[0-9]?)[^\)]*\]?\)/mg) ? ((sort @versions)[-1]) : '';
-}
-
-
-
-my $binary      = "$0-1.4";
-my $binary_1_5  = "$0-1.5";
-my $binary_1_6  = "$0-1.6";
-my $binary_1_7  = "$0-1.7";
-my $binary_1_8  = "$0-1.8";
-
-# question here is do we really want 1.5 or 1.6?  Out of a KDE outlook, it
-# should rather be 1.5, and since most people would rather have migrated to
-# 1.5, and then stay with it for a bit (those 1.4 die hards ..), only have
-# the 'configure.ac' test for 1.5 ...
-if ($ENV{WANT_AUTOMAKE} ne '1.4') {
-	if (-x $binary_1_8              # user may not have _1_8 ...
-	&& (($ENV{WANT_AUTOMAKE} eq '1.8')
-	    || (cat_('Makefile.in') =~ /^# Makefile\.in generated by automake (\S+)/ ? $1 : '') ge '1.8'
-	    || (cat_('aclocal.m4') =~ /^# aclocal.m4 generated automatically by aclocal (\S+)/ ? $1 : '') ge '1.8'
-	    || am_version('aclocal.m4') ge '1.8')) {
-	$ENV{WANT_AUTOMAKE} = '1.8';    # to prevent further "cats" and to enhance consistency (possible cwd etc)
-	$binary         = $binary_1_8;
-        } elsif (-x $binary_1_7         # user may not have 1.7 ...
-	&& (($ENV{WANT_AUTOMAKE} eq '1.7')
-	    || (cat_('Makefile.in') =~ /^# Makefile\.in generated by automake (\S+)/ ? $1 : '') ge '1.7'
-	    || (cat_('aclocal.m4') =~ /^# aclocal.m4 generated automatically by aclocal (\S+)/ ? $1 : '') ge '1.7'
-	    || am_version('aclocal.m4') ge '1.7')) {
-	$ENV{WANT_AUTOMAKE} = '1.7';    # to prevent further "cats" and to enhance consistency (possible cwd etc)
-	$binary         = $binary_1_7;
-	} elsif (-x $binary_1_6         # user may not have 1.6 ...
-	&& (($ENV{WANT_AUTOMAKE} eq '1.6')
-	    || (cat_('Makefile.in') =~ /^# Makefile\.in generated by automake (\S+)/ ? $1 : '') ge '1.6'
-	    || (cat_('aclocal.m4') =~ /^# aclocal.m4 generated automatically by aclocal (\S+)/ ? $1 : '') ge '1.6'
-	    || am_version('aclocal.m4') ge '1.6'
-		# Autoconf 2.53d and later need automake-1.6c, so enable 1.6 for 2.53
-		# and up .....
-	    || ac_version('configure.in') gt '2.52'
-	    || (cat_('configure') =~ /^# Generated by Autoconf (\S+)/m ? $1 : '') gt '2.52'
-	    || ac_version('aclocal.m4') gt '2.52')) {
-	$ENV{WANT_AUTOMAKE} = '1.6';    # to prevent further "cats" and to enhance consistency (possible cwd etc)
-	$binary 		= $binary_1_6;
-    } elsif (-x $binary_1_5         # user may have only 1.4 ...
-	&& (($ENV{WANT_AUTOMAKE} eq '1.5')
-	    || -r 'configure.ac'
-	    || (cat_('Makefile.in') =~ /^# Makefile\.in generated by automake (\S+)/ ? $1 : '') ge '1.5'
-	    || (cat_('aclocal.m4') =~ /^# aclocal.m4 generated automatically by aclocal (\S+)/ ? $1 : '') ge '1.5'
-	    || ac_version('configure.in') gt '2.13'
-	    || (cat_('configure') =~ /^# Generated by Autoconf (\S+)/m ? $1 : '') gt '2.13'
-	    || ac_version('aclocal.m4') gt '2.13')) {
-	$ENV{WANT_AUTOMAKE} = '1.5';    # to prevent further "cats" and to enhance consistency (possible cwd etc)
-	$binary 		= $binary_1_5;
-    } else {
-	if (-r 'configure.in' || -r 'configure.ac') {
-		$ENV{WANT_AUTOMAKE} = '1.4';    # for further consistency
-	} else {
-		$ENV{WANT_AUTOMAKE} = '1.8';
-		$binary         = $binary_1_8;
-	}
-    }
-}
-
-$ENV{WANT_AMWRAPPER_DEBUG} and print STDERR "am-wrapper: will execute <$binary>\n";
-
-exec $binary, @ARGV;
-
-die "am-wrapper: ouch, couldn't call binary ($binary).\n";
diff --git a/am-wrapper.sh b/am-wrapper.sh
new file mode 100755
index 0000000..6733f65
--- /dev/null
+++ b/am-wrapper.sh
@@ -0,0 +1,120 @@
+#!/bin/bash
+# Copyright 1999-2004 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-devel/automake-wrapper/files/am-wrapper-1.sh,v 1.1 2004/11/14 05:32:54 vapier Exp $
+
+# Based on the am-wrapper.pl script provided by MandrakeSoft
+# Rewritten in bash by Gregorio Guidi
+#
+# Executes the correct automake version.
+#
+# - defaults to automake-1.8
+# - runs automake-1.7 if:
+#   - envvar WANT_AUTOMAKE is set to `1.7'
+#     -or-
+#   - `Makefile.in' was generated by automake-1.7
+#     -or-
+#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.7
+# - runs automake-1.6 if:
+#   - envvar WANT_AUTOMAKE is set to `1.6'
+#     -or-
+#   - `Makefile.in'
+#     -or-
+#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.6
+# - runs automake-1.5 if:
+#   - envvar WANT_AUTOMAKE is set to `1.5'
+#     -or-
+#   - `Makefile.in' was generated by automake-1.5
+#     -or-
+#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.5
+# - runs automake-1.4 if:
+#   - envvar WANT_AUTOMAKE is set to `1.4'
+#     -or-
+#   - `Makefile.in' was generated by automake-1.4
+#     -or-
+#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.4
+
+if [ "${0##*/}" = "am-wrapper.sh" ] ; then
+	echo "Don't call this script directly." >&2
+	exit 1
+fi
+
+vers="$(seq 1.9 -0.1 1.4)"
+
+for v in ${vers} ; do
+	eval binary_${v/./_}="${0}-${v}"
+done
+binary="binary_1_9"
+
+#
+# autodetect routine
+#
+for v in ${vers} x ; do
+	if [ "${v}" = "x" ] ; then
+		unset WANT_AUTOMAKE
+		break
+	fi
+
+	if [ "${WANT_AUTOMAKE}" = "${v}" ] ; then
+		binary="binary_${v/./_}"
+		binary="${!binary}"
+		break
+	fi
+done
+
+do_awk() {
+	local file=$1 ; shift
+	local arg=$1 ; shift
+	echo $(awk "{ if (match(\$0, \"$*\", res)) { print res[${arg}]; exit } }" ${file})
+}
+
+if [ -z "${WANT_AUTOMAKE}" ] ; then
+	if [ -r "Makefile.in" ] ; then
+		confversion_mf=$(do_awk Makefile.in 2 "^# Makefile.in generated (automatically )?by automake ([0-9].[0-9])")
+	fi
+	if [ -r "aclocal.m4" ] ; then
+		confversion_ac=$(do_awk aclocal.m4 1 'generated automatically by aclocal ([0-9].[0-9])')
+		confversion_am=$(do_awk aclocal.m4 1 '[[:space:]]*\\[?AM_AUTOMAKE_VERSION\\(\\[?([0-9].[0-9])[^)]*\\]?\\)')
+	fi
+
+	for v in ${vers} ; do
+		if [ "${confversion_mf}" = "${v}" ] \
+		   || [ "${confversion_ac}" = "${v}" ] \
+		   || [ "${confversion_am}" = "${v}" ] ; then
+			binary="binary_${v/./_}"
+			binary="${!binary}"
+			break
+		fi
+	done
+fi
+
+if [ "${WANT_AMWRAPPER_DEBUG}" ] ; then
+	if [ "${WANT_AUTOMAKE}" ] ; then
+		echo "am-wrapper: DEBUG: WANT_AUTOMAKE is set to ${WANT_AUTOMAKE}" >&2
+	fi
+	echo "am-wrapper: DEBUG: will execute <$binary>" >&2
+fi
+
+#
+# for further consistency
+#
+for v in ${vers} ; do
+	mybin="binary_${v/./_}"
+	if [ "${binary}" = "${!mybin}" ] ; then
+		export WANT_AUTOMAKE="${v}"
+	fi
+done
+
+#
+# Now try to run the binary
+#
+if [ ! -x "${binary}" ] ; then
+	echo "am-wrapper: $binary is missing or not executable." >&2
+	echo "            Please try emerging the correct version of automake." >&2
+	exit 1
+fi
+
+exec "$binary" "$@"
+
+echo "am-wrapper: was unable to exec $binary !?" >&2
+exit 1