--- configure.bak	2013-03-26 21:08:51.000000000 +0100
+++ configure	2014-01-28 10:49:58.000000000 +0100
@@ -5635,6 +5635,28 @@
 fi
 
 if test "x$found_strnvis" = xyes; then
+   { $as_echo "$as_me:${as_lineno-$LINENO}: checking if strnvis is broken" >&5
+$as_echo_n "checking if strnvis is broken... " >&6; }
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <vis.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strnvis\(char \*, const char \*, size_t, int\)" >/dev/null 2>&1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+else
+  found_strnvis=no
+fi
+rm -f conftest*
+
+   if test "x$found_strnvis" = xno; then
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+   fi
+fi
+if test "x$found_strnvis" = xyes; then
 	$as_echo "#define HAVE_VIS 1" >>confdefs.h
 
 fi