diff -up xbase64-3.1.2/configure.in.verfix xbase64-3.1.2/configure.in
--- xbase64-3.1.2/configure.in.verfix	2017-02-20 09:44:55.702420764 -0500
+++ xbase64-3.1.2/configure.in	2017-02-20 09:45:05.838144610 -0500
@@ -74,7 +74,7 @@ AC_SUBST(RHREL)
 
 # get G++ version
 if test "$GXX" = "yes"; then
-  GXXVER=`${CXX} -v 2>&1 | grep version | cut -d " " -f 3 -`
+  GXXVER=`${CXX} -v 2>&1 | grep "gcc version" | cut -d " " -f 3 -`
   GXXVER="gcc${GXXVER}"
 else
   GXXVER=""