[gmime] Fixed sed expr for detecting libtool version

[Jeffrey Stedfast <fejj src gnome org>]

commit f11f2eec3ab95f7a24ce684d0b3df205a504f0fc
Author: Jeffrey Stedfast <fejj gnome org>
Date:   Wed Apr 14 09:06:00 2010 -0400

    Fixed sed expr for detecting libtool version

 autogen.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index dc777cb..fe7f2e7 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -14,7 +14,7 @@ DIE=0
 
 have_libtool=false
 if libtoolize --version < /dev/null > /dev/null 2>&1 ; then
-	libtool_version=`libtoolize --version | sed 's/^[^0-9]*\([0-9.][0-9.]*\).*/\1/'`
+	libtool_version=`libtoolize --version | sed '/^$/d;s/([^)]*)//g;s/^[^0-9]*//;s/[- ].*//g;q'`
 	case $libtool_version in
 	    1.4*|1.5*|2.2*)
 		have_libtool=true