--- configure.orig	2015-05-25 16:16:33 UTC
+++ configure
@@ -20986,7 +20986,7 @@ $as_echo_n "checking for fox libraries..
 
 # Check whether --with-fox-libs was given.
 if test "${with_fox_libs+set}" = set; then :
-  withval=$with_fox_libs; fox_libs="$withval"
+  withval=$with_fox_libs; local_fox_libs="$withval"
 else
 
       ac_ext=cpp