diff --git a/include/compat/mingw/sal.h b/include/compat/mingw/sal.h
index 6487dfc..01ceefe 100644
--- a/include/compat/mingw/sal.h
+++ b/include/compat/mingw/sal.h
@@ -1 +1,25 @@
 #include "salieri.h"
+
+#ifndef _Analysis_assume_
+#	define _Analysis_assume_(expr)
+#endif // _Analysis_assume_
+
+#ifndef _In_bytecount_
+#	define _In_bytecount_(size)
+#endif // _In_bytecount_
+
+#ifndef _Inout_count_
+#	define _Inout_count_(size)
+#endif // _Inout_count_
+
+#ifndef _Maybenull_
+#	define _Maybenull_
+#endif // _Maybenull_
+
+#ifndef _Outptr_result_buffer_maybenull_
+#	define _Outptr_result_buffer_maybenull_(size)
+#endif // _Outptr_result_buffer_maybenull_
+
+#ifndef _Reserved_
+#	define _Reserved_
+#endif // _Reserved_