configure: fix compatibility issue with Apple clang 4.0

Fix compatibility with Mountain Lion.

Closes #3049.

diff --git a/configure b/configure
index 06bddccc15cf0a7cab953ee344fa9b1ef9e4ea8f..040bae9fe60a3a236c4cb797f76822a5a573f220 100755 (executable)
--- a/configure
+++ b/configure
@@ -400,7 +400,7 @@ then
                       | cut -d ' ' -f 2)
 
     case $CFG_CLANG_VERSION in
-        (3.0svn | 3.0 | 3.1)
+        (3.0svn | 3.0 | 3.1 | 4.0)
         step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
         CFG_C_COMPILER="clang"
         ;;