diff --git a/configure b/configure
index 7313145..4a2f352 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 84675 .
+# From configure.in Revision: 84682 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.65 for python 3.1.
 #
@@ -3131,7 +3131,7 @@
 else
 
 	case $ac_sys_system in
-	AIX*)   CC=cc_r
+	AIX*)   CC=${CC:-xlc_r}
 		without_gcc=;;
 	*)	without_gcc=no;;
 	esac