--- ddrescue-1.0/configure.orig	2005-07-06 18:40:09.620905736 +0200
+++ ddrescue-1.0/configure	2005-07-06 18:40:24.328669816 +0200
@@ -64,8 +64,7 @@
 	--mandir* | --ma*)
 		mandir=`echo ${optarg} | sed -e 's,/$,,'` ;;
 	*)
-		echo "configure: Unrecognized option: \"${option}\"; use --help for usage." 1>&2
-		exit 1 ;;
+		echo "configure: Unrecognized option: \"${option}\" ignored; use --help for usage." 1>&2
 	esac
 done