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-rw-r--r--frontends/gtk/gdk.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/frontends/gtk/gdk.c b/frontends/gtk/gdk.c
index fd82af5b2..2912862da 100644
--- a/frontends/gtk/gdk.c
+++ b/frontends/gtk/gdk.c
@@ -33,7 +33,8 @@ convert_alpha(guchar *dest_data,
int x, y;
for (y = 0; y < height; y++) {
- guint32 *src = (guint32 *) src_data;
+ /* this cast is safe, the buffer is appropriately aligned */
+ guint32 *src = (void *) src_data;
for (x = 0; x < width; x++) {
guint alpha = src[x] >> 24;