[PATCH 2/4] configure: Build with -Wshift-overflow=2.

[Henri Verbeet]

From: Henri Verbeet

---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index 7fe70615f..6d352895f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -66,6 +66,7 @@ AS_IF([test "x${GCC}" = "xyes"],
       VKD3D_CHECK_CFLAGS([-Wmissing-prototypes])
       VKD3D_CHECK_CFLAGS([-Wpointer-arith])
       VKD3D_CHECK_CFLAGS([-Wshadow])
+      VKD3D_CHECK_CFLAGS([-Wshift-overflow=2])
       VKD3D_CHECK_CFLAGS([-Wunused-but-set-parameter])
       VKD3D_CHECK_CFLAGS([-Wvla])
       VKD3D_CHECK_CFLAGS([-Wl,--no-undefined])])