x11: don't try to make a NULL GL context current when we already did that.
diff --git a/src/video/x11/SDL_x11opengl.c b/src/video/x11/SDL_x11opengl.c
index bf9a98e..828a18d 100644
--- a/src/video/x11/SDL_x11opengl.c
+++ b/src/video/x11/SDL_x11opengl.c
@@ -452,7 +452,9 @@ X11_GL_InitExtensions(_THIS)
if (context) {
_this->gl_data->glXMakeCurrent(display, None, NULL);
_this->gl_data->glXDestroyContext(display, context);
- _this->gl_data->glXMakeCurrent(display, w, current_context);
+ if (current_context) {
+ _this->gl_data->glXMakeCurrent(display, w, current_context);
+ }
}
X11_XDestroyWindow(display, w);