--- lisp-kernel/freebsdx8664/Makefile.orig	2020-04-19 21:32:56 UTC
+++ lisp-kernel/freebsdx8664/Makefile
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-VC_REVISION != sh -c "git describe --dirty 2>/dev/null || echo unknown"
+VC_REVISION:=	%%TAG%%
 
 VPATH = ..
 RM = /bin/rm
