$OpenBSD$
--- configure.orig	Wed Dec 25 19:54:02 2013
+++ configure	Wed Dec 25 19:54:09 2013
@@ -4582,7 +4582,6 @@ fi
                      -Wcast-qual \
                      -Wextra \
                      -Wpointer-arith \
-                     -Wredundant-decls \
                      -Wreturn-type \
                      -Wshadow \
                      -Wsign-compare \
