build: enable undefined sanitizer

All tests pass with this sanitizer. Let's enable it too.

diff --git a/configure.ac b/configure.ac
index da03047cc6512868ee4b41969a2230266d922cf2..f8be3b4ff5334a93cc5050a351429a6d170520ec 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -123,7 +123,7 @@ AC_ARG_ENABLE([sanitizers],
   [
 case "$enableval" in
     no) sanitizers= ;;
-    yes) sanitizers="-fsanitize=address" ;;
+    yes) sanitizers="-fsanitize=address,undefined" ;;
     *) sanitizers="-fsanitize=$enableval" ;;
 esac
 if test x"$sanitizers" != x; then