X11: Fix setting the clipboard string to itself

From upstream: https://github.com/glfw/glfw/commit/0c27ed1d0ef36672f0ef28d86bf8e108cc6e379d.
2020-02-17 01:12:52 +01:00
parent c51f4df0ca
commit f8ae048d60
1 changed files with 2 additions and 1 deletions
@@ -2735,8 +2735,9 @@ void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor UNUSED)

 void _glfwPlatformSetClipboardString(const char* string)
 {
+    char* copy = _glfw_strdup(string);
    free(_glfw.x11.clipboardString);
-    _glfw.x11.clipboardString = _glfw_strdup(string);
+    _glfw.x11.clipboardString = copy;

    XSetSelectionOwner(_glfw.x11.display,
                       _glfw.x11.CLIPBOARD,