Your friendly local distribution manager is not really interested
in complaints caused by MuPDF's decision to use patched versions of
common libraries

Index: platform/gl/gl-ui.c
--- platform/gl/gl-ui.c.orig
+++ platform/gl/gl-ui.c
@@ -450,7 +450,9 @@ void ui_init(int w, int h, const char *title)
 	glutKeyboardExtFunc(on_keyboard);
 #else
 	fz_warn(ctx, "This version of MuPDF has been built WITHOUT clipboard or unicode input support!");
+#if 0
 	fz_warn(ctx, "Please file a complaint with your friendly local distribution manager.");
+#endif
 	glutKeyboardFunc(on_keyboard);
 #endif
 	glutSpecialFunc(on_special);