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
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