Enable sanitize for CI tests

Change-Id: I7559807d54bec5da45ea5c41b10d396d992cb1b7
diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
index 06c24e5..033eed7 100755
--- a/contrib/jenkins.sh
+++ b/contrib/jenkins.sh
@@ -38,7 +38,7 @@
 
 cd "$base"
 autoreconf --install --force
-./configure CFLAGS="-Werror" CPPFLAGS="-Werror" $GTP
+./configure --enable-sanitize CFLAGS="-Werror" CPPFLAGS="-Werror" $GTP
 $MAKE $PARALLEL_MAKE
 $MAKE distcheck