internal/graphicsdriver/opengl/gl/package_notwindows.go
func IsSync(sync uintptr) bool {
	ret := C.glowIsSync(gpIsSync, (C.GLsync)(sync))
	return ret == TRUE
}
func IsSync(sync uintptr) bool {
	ret := C.glowIsSync(gpIsSync, (C.GLsync)(sync))
	return ret == TRUE
}
// determine if a name corresponds to a sync object