diff --git a/CMake/variants/variants.sharkbay b/CMake/variants/variants.sharkbay
index 8b2ba8b6f430073ce864e75975b13d86f4369f78..3bab532038f536fef4fb6357846e21c3c287a06b 100644
--- a/CMake/variants/variants.sharkbay
+++ b/CMake/variants/variants.sharkbay
@@ -9,6 +9,13 @@ option(USE_LOG4CPLUS "Use Log4Cplus" ON)
 option(USE_OPENMP    "Use OpenMP"    ON)
 option(USE_MPI       "Use MPI"       ON)
 
-set(CUDADRIVER_ROOT_DIR /usr/lib/nvidia-319/)
-set(CUDA_TOOLKIT_ROOT_DIR /usr/local/cuda-5.0/)
+# Refer to symlink that go may through ccache.
+# Force GCC 4.7 for CUDA 5.5
+set(GNU_C         /usr/lib/ccache/gcc-4.7 )
+set(GNU_CXX       /usr/lib/ccache/g++-4.7 )
+set(GNU_Fortran   /usr/bin/gfortran )
+set(GNU_ASM       /usr/lib/ccache/gcc-4.7 )
+
+#set(CUDADRIVER_ROOT_DIR /usr/lib/nvidia-319/)
+set(CUDA_TOOLKIT_ROOT_DIR /usr/local/cuda/)
 set(UNITTEST++_ROOT_DIR /usr/include/unittest++)