--- /dev/null
+--- a/configure.ac
++++ b/configure.ac
+@@ -274,7 +274,7 @@ fi
+ AC_MSG_CHECKING([the version of $PATCH])
+ if $PATCH --version 2> /dev/null | grep GNU >/dev/null; then
+ set -- `$PATCH --version 2> /dev/null`
+- patch_version=$2
++ test $2 == "patch" && patch_version=$3 || patch_version=$2
+ AC_MSG_RESULT($patch_version)
+ saved_IFS=$IFS; IFS='.'
+ set -- $patch_version