set(CMAKE_C_FLAGS_INIT             "-std=c99  -m64" CACHE STRING "Initial C compile flags")
set(CMAKE_C_FLAGS_DEBUG            "-g -Wall" CACHE STRING "Initial C debug compile flags")
set(CMAKE_C_FLAGS_MINSIZEREL       "-Os -mcpu=native -DNDEBUG" CACHE STRING "Initial C minimum size release compile flags")
set(CMAKE_C_FLAGS_RELEASE          "-O3 -mcpu=native -DNDEBUG" CACHE STRING "Initial C release compile flags")
set(CMAKE_C_FLAGS_RELWITHDEBINFO   "-O2 -g -Wall" CACHE STRING "Initial C release with debug info compile flags")
