--- ./build/autoconf/nss.m4.old	2012-11-21 17:42:14.448607590 +0100
+++ ./build/autoconf/nss.m4	2012-11-21 17:43:13.170925194 +0100
@@ -45,17 +45,17 @@
 		NSS_LIBS=`$NSS_CONFIG $nss_config_args --libs`
 
 		nss_config_major_version=`$NSS_CONFIG $nss_config_args --version | \
-			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+			cut -d"." -f1`
 		nss_config_minor_version=`$NSS_CONFIG $nss_config_args --version | \
-			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+			cut -d"." -f2`
 		nss_config_micro_version=`$NSS_CONFIG $nss_config_args --version | \
-			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+			cut -d"." -f3`
 		min_nss_major_version=`echo $min_nss_version | \
-			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+			cut -d"." -f1`
 		min_nss_minor_version=`echo $min_nss_version | \
-			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+			cut -d"." -f2`
 		min_nss_micro_version=`echo $min_nss_version | \
-			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+			cut -d"." -f3`
 		if test "$nss_config_major_version" -lt "$min_nss_major_version"; then
 			no_nss="yes"
 		elif test "$nss_config_major_version" -eq "$min_nss_major_version" &&