commit 84612fe773ee57d57822107bb65671def135db30
from: Alexander Barton <alex@barton.de>
date: Wed Feb 13 21:11:49 2013 UTC

autogen.sh: Don't use "egrep -o", use "sed"

"egrep -o" isn't portable and not available on OpenBSD, for example. So
let's use sed instead to get the automake version. The expression used
now is less specific but should work as well ...
(cherry picked from commit 419ff38a07cb0b1637b444c96cd6868a7a9e5524)

commit - 84f5839c174e25af57f8d082cbbe8a603501dcaa
commit + 84612fe773ee57d57822107bb65671def135db30
blob - d480252683a0fc43f6f2d9133666787b2c140434
blob + c624eeb71d7876e780b3750df0344303ae4f9c1c
--- autogen.sh
+++ autogen.sh
@@ -153,7 +153,7 @@ echo "Searching for required tools ..."
 [ -z "$AUTOMAKE" ] && Notfound automake
 [ -z "$AUTOCONF" ] && Notfound autoconf
 
-AM_VERSION=`$AUTOMAKE --version|head -n 1|egrep -o "([1-9]\.[0-9]+(\.[0-9]+)*)"`
+AM_VERSION=`$AUTOMAKE --version | head -n 1 | sed -e 's/.* //g'`
 ifs=$IFS; IFS="."; set $AM_VERSION; IFS=$ifs
 AM_MAJOR="$1"; AM_MINOR="$2"; AM_PATCHLEVEL="$3"