exec_program("cd ${CMAKE_SOURCE_DIR}/externals/unix/sdk_OpenBLAS && make TARGET=NEHALEM && make install PREFIX='${CMAKE_SOURCE_DIR}/externals/unix/OpenBLAS'")
exec_program("cd ${CMAKE_SOURCE_DIR}/externals/unix/sdk_OpenBLAS && make --quiet TARGET=NEHALEM && make install PREFIX='${CMAKE_SOURCE_DIR}/externals/unix/OpenBLAS'")