set(CMAKE_SYSTEM_NAME Darwin) set(CMAKE_C_COMPILER o64-clang) set(CMAKE_CXX_COMPILER o64-clang++) set(CMAKE_INSTALL_NAME_TOOL x86_64-apple-darwin15-install_name_tool) set(CMAKE_OTOOL x86_64-apple-darwin15-otool) set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)