Index: UnixBench/Makefile
===================================================================
--- UnixBench.orig/Makefile
+++ UnixBench/Makefile
@@ -53,7 +53,7 @@ GL_LIBS = -lGL -lXext -lX11
 # COMPILER CONFIGURATION: Set "CC" to the name of the compiler to use
 # to build the binary benchmarks.  You should also set "$cCompiler" in the
 # Run script to the name of the compiler you want to test.
-CC=gcc
+CC?=gcc
 
 # OPTIMISATION SETTINGS: