diff --git a/configure b/configure
index 618fe789d..c17e5f340 100755
--- a/configure
+++ b/configure
@@ -392,7 +392,7 @@ if test "$have_clang" = yes; then
 	fi
 
 	case $cxx_version in
-		[3].[4-9]|[3].[4-9].[0-9]|[3].[4-9].[0-9][-.]*)
+		[3].[4-9]|[3].[4-9].[0-9]|[3].[4-9].[0-9][-.]*|[4].[0-9].[0-9])
 			_cxx_major=`echo $cxx_version | cut -d '.' -f 1`
 			_cxx_minor=`echo $cxx_version | cut -d '.' -f 2`
 			cxx_version="$cxx_version, ok"