--- orig/lisp/progmodes/gdb-ui.el
+++ mod/lisp/progmodes/gdb-ui.el
@@ -1077,8 +1077,9 @@
   "Icon for disabled breakpoint in display margin.")

 ;; Bitmap for breakpoint in fringe
-(define-fringe-bitmap 'breakpoint
-  "\x3c\x7e\xff\xff\xff\xff\x7e\x3c")
+(when (fboundp 'define-fringe-bitmap)
+  (define-fringe-bitmap 'breakpoint
+    "\x3c\x7e\xff\xff\xff\xff\x7e\x3c"))

 (defface breakpoint-enabled-bitmap-face
   '((t