From 22c27e92a8889ef9f6ea2099db2d71c1befeab68 Mon Sep 17 00:00:00 2001
From: Fabian Keil <fk@fabiankeil.de>
Date: Sat, 6 Feb 2021 11:24:52 +0100
Subject: [PATCH] Add configure option to enable UndefinedBehaviorSanitizer

---
 configure.in | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/configure.in b/configure.in
index 7d5c89a3..6b7f944b 100644
--- a/configure.in
+++ b/configure.in
@@ -168,6 +168,12 @@ if test "x$with_asan" = "xyes"; then
     LDFLAGS="$LDFLAGS -fsanitize=address"
 fi
 
+AC_ARG_WITH(usan, [  --with-usan       Enable UndefinedBehaviorSanitizer. Requires compiler support.])
+if test "x$with_usan" = "xyes"; then
+    CFLAGS="$CFLAGS -fsanitize=undefined"
+    LDFLAGS="$LDFLAGS -fsanitize=undefined"
+fi
+
 dnl =================================================================
 dnl Check for user and group validity
 dnl =================================================================
-- 
2.49.0