It is fine to pass NULL to _glfw_free.
@ -1461,9 +1461,7 @@ void _glfwTerminateWayland(void)
if (_glfw.wl.cursorTimerfd >= 0)
close(_glfw.wl.cursorTimerfd);
if (_glfw.wl.clipboardString)
_glfw_free(_glfw.wl.clipboardString);
if (_glfw.wl.clipboardSendString)
_glfw_free(_glfw.wl.clipboardSendString);
}