--- src/impala/edge.h.orig	2014-04-12 23:01:04.000000000 +0000
+++ src/impala/edge.h	2017-04-08 04:56:25.000000000 +0000
@@ -70,8 +70,8 @@
 
 mclv* mclgUnionv
 (  mclx* mx                   /*  mx->dom_rows used as scratch area     */
-,  const mclv* dom_cols       /*  take union over these columns in mx   */
-,  const mclv* restrict       /*  only consider row entries in restrict */
+,  const mclv* coldom         /*  take union over these columns in mx   */
+,  const mclv* confine        /*  only consider row entries in restrict */
 ,  mcxenum SCRATCH_STATUS     /*  if SCRATCH_READY also left SCRATCH_READY */
 ,  mclv* dst
 )  ;
@@ -91,8 +91,8 @@
 
 mclv* mclgUnionv2             /*  This one has a const matrix argument, additional scratch */
 (  const mclx* mx
-,  const mclv* dom_cols
-,  const mclv* restrict
+,  const mclv* coldom
+,  const mclv* confine
 ,  mcxenum SCRATCH_STATUS
 ,  mclv* dst
 ,  mclv* scratch