Windows CFLAGS

diff --git a/util b/util
index 0bb7708fdd66cad93bd55d77301bffabcc703c05..4aa564982c36e676b81e8237a35123fe740eeca2 160000 (submodule)
--- a/util
+++ b/util
@@ -1 +1 @@
-Subproject commit 0bb7708fdd66cad93bd55d77301bffabcc703c05
+Subproject commit 4aa564982c36e676b81e8237a35123fe740eeca2