Graphics.GL.EXT.Semaphore
glGetEXTSemaphore
gl_EXT_semaphore
glDeleteSemaphoresEXT
glGenSemaphoresEXT
glGetSemaphoreParameterui64vEXT
glGetUnsignedBytei_vEXT
glGetUnsignedBytevEXT
glIsSemaphoreEXT
glSemaphoreParameterui64vEXT
glSignalSemaphoreEXT
glWaitSemaphoreEXT