From 2177b191ba54abb10a13029751f4ae7ed150dfbc Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Tue, 7 Nov 2017 12:22:48 +0100
Subject: [PATCH] x11: Correctly set icons

X11 obviously doesn't use 4 bytes for a 4 bytes pixel. Rather, it uses
unsigned long, which happens to be 8 bytes these days.
---
 gdk/x11/gdkwindow-x11.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gdk/x11/gdkwindow-x11.c b/gdk/x11/gdkwindow-x11.c
index d4be4efd4f..a9f31fd65a 100644
--- a/gdk/x11/gdkwindow-x11.c
+++ b/gdk/x11/gdkwindow-x11.c
@@ -3241,7 +3241,7 @@ gdk_x11_window_set_icon_list (GdkWindow *window,
   gint width, height;
   GdkTexture *texture;
   GdkDisplay *display;
-  gint n;
+  gint i, n;
 
   if (GDK_WINDOW_DESTROYED (window) ||
       !WINDOW_IS_TOPLEVEL_OR_FOREIGN (window))
@@ -3280,6 +3280,12 @@ gdk_x11_window_set_icon_list (GdkWindow *window,
       *p++ = height;
 
       gdk_texture_download (texture, (guchar *) p, width * 4);
+      if (sizeof (gulong) > 4)
+        {
+          i = width * height;
+          while (i-- > 0)
+            p[i] = ((guint32 *) p)[i];
+        }
 
       p += width * height;
       n--;
-- 
2.30.2