--- src/image.c.orig	2014-10-15 14:18:29.088716000 +0200
+++ src/image.c	2014-10-15 15:54:12.407522800 +0200
@@ -7862,7 +7862,7 @@
   };
 
 #if defined HAVE_NTGUI && defined WINDOWSNT
-static bool init_imagemagick_functions (void);
+#define init_imagemagick_functions NULL
 #else
 #define init_imagemagick_functions NULL
 #endif
