x11: pass a long to XChangeProperty, not an int.

icculus · icculus · commit c80c3419aad8 · 2017-07-04T20:44:07.000-04:00
The Xlib documentation demands that 32-bit values here be passed in a long, even when long itself isn't a 32-bit value. Otherwise libx11 might read memory incorrectly. Fixes Bugzilla #3692.
diff --git a/src/video/x11/SDL_x11window.c b/src/video/x11/SDL_x11window.c
@@ -375,7 +375,7 @@ X11_CreateWindow(_THIS, SDL_Window * window)
     Atom _NET_WM_WINDOW_TYPE;
     Atom wintype;
     const char *wintype_name = NULL;
-    int compositor = 1;
+    long compositor = 1;
     Atom _NET_WM_PID;
     Atom XdndAware, xdnd_version = 5;
     long fevent = 0;
