sys: fixes for Win7 x86

src/sys/driver.h

@@ -1034,7 +1034,11 @@ extern WCHAR FspFileDescDirectoryPatternMatchAll[];
 extern FSP_MV_CcCoherencyFlushAndPurgeCache *FspMvCcCoherencyFlushAndPurgeCache;
 extern ULONG FspMvMdlMappingNoWrite;
 
-/* add missing API prototype */
+/*
+ * Fixes
+ */
+
+ /* ObCloseHandle: add missing prototype */
 #if (NTDDI_VERSION < NTDDI_WIN7)
 NTKERNELAPI
 NTSTATUS
@@ -1044,4 +1048,12 @@ ObCloseHandle(
     );
 #endif
 
+/* RtlEqualMemory: this is defined as memcmp, which does not exist on Win7 x86! */
+#undef RtlEqualMemory
+static inline
+LOGICAL RtlEqualMemory(const VOID *Source1, const VOID *Source2, SIZE_T Length)
+{
+    return Length == RtlCompareMemory(Source1, Source2, Length);
+}
+
 #endif