--- configure	2006-03-31 17:52:39.000000000 +0300
+++ configure	2006-03-31 17:52:50.000000000 +0300
@@ -15,7 +15,7 @@
 
 for arg in $*; do
 	case "$arg" in
-		-*=*) optarg=`echo "$arg" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+		-*=*) optarg=`echo "$arg" | sed 's/[-_[:alnum:]]*=//'` ;;
 		   *) optarg= ;;
 	esac