--- ./configure.orig	2012-11-11 09:42:22.000000000 -0500
+++ ./configure	2012-11-11 09:46:01.000000000 -0500
@@ -38,8 +38,7 @@
   return 0;
 }
 EOF
-CXX=unknown;
-for i in "CC" "g++" "cc" "$CC"; do
+for i in "$CXX" "c++"; do
   if $i -c $tmp_file.C 2>/dev/null; then
     CXX="$i";
     break;