layers: Fix Windows build warnings
NOEXCEPT is defined multiple times
Change-Id: I9aef970e9588c17071cd71a31873db4090d50b07
diff --git a/layers/descriptor_sets.h b/layers/descriptor_sets.h
index 3505516..4345154 100644
--- a/layers/descriptor_sets.h
+++ b/layers/descriptor_sets.h
@@ -21,6 +21,7 @@
#define CORE_VALIDATION_DESCRIPTOR_SETS_H_
// Check for noexcept support
+#ifndef NOEXCEPT
#if defined(__clang__)
#if __has_feature(cxx_noexcept)
#define HAS_NOEXCEPT
@@ -40,6 +41,7 @@
#else
#define NOEXCEPT
#endif
+#endif
#include "core_validation_error_enums.h"
#include "vk_validation_error_messages.h"