Fix compile options for GCC 4.7
Fix compile options for GCC 4.7

j-o/cmake-init,cginternals/cmake-init,j-o/cmake-init,cginternals/cmake-init,hpicgs/cmake-init,j-o/cmake-init,hpicgs/cmake-init,hpicgs/cmake-init,j-o/cmake-init,hpicgs/cmake-init