cmake_dependent_option(BUILD_WITH_OPENGL "Enable OpenGL Graphics API support?" ON "OPENGL_FOUND" OFF)
cmake_dependent_option(BUILD_WITH_OPENGL "Enable OpenGL Graphics API support?" ON "OPENGL_FOUND" OFF)
if(NOT BUILD_WITH_OPENHMD AND NOT BUILD_WITH_HIDAPI)
if(NOT BUILD_WITH_OPENHMD AND NOT BUILD_WITH_HIDAPI)
message(FATAL_ERROR "You must enable at least one driver: either provide OpenHMD and enable BUILD_WITH_OPENHMD (for a variety of devices via OpenHMD), or provide HIDAPI and enable BUILD_WITH_HIDAPI (for the HDK driver)")
message(FATAL_ERROR "You must enable at least one driver: either provide OpenHMD and enable BUILD_WITH_OPENHMD (for a variety of devices via OpenHMD), or provide HIDAPI and enable BUILD_WITH_HIDAPI (for the HDK driver)")