--- libinterp/mkops.orig	2017-02-22 18:01:55 UTC
+++ libinterp/mkops
@@ -18,7 +18,7 @@
 # along with Octave; see the file COPYING.  If not, see
 # <http://www.gnu.org/licenses/>.
 
-SED=${SED:-sed}
+SED=gsed
 
 cat << \EOF
 // DO NOT EDIT!  Generated automatically by mkops.