diff --git a/src/defs.h b/src/defs.h
index 5c122829..21b69ead 100644
--- a/src/defs.h
+++ b/src/defs.h
@@ -358,14 +358,16 @@
 #define FIXME "FIXME: " __FILE__ ", " STRINGIFY(__LINE__)
 
 #ifndef STATIC_ASSERT_MSG
-#   if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
-          || __has_feature(c_static_assert)
-#       define STATIC_ASSERT_MSG(expr, msg) _Static_assert(expr, msg)
-#   elif defined(static_assert)
+#   if defined(static_assert)
 #       define STATIC_ASSERT_MSG(expr, msg) static_assert(expr, msg)
+#   elif defined(_STATIC_ASSERT)
+#       define STATIC_ASSERT_MSG(expr, msg) _STATIC_ASSERT(expr)
 #   elif defined(_MSC_VER)
 #       include <crtdbg.h>
 #       define STATIC_ASSERT_MSG(expr, msg) _STATIC_ASSERT(expr)
+#   elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
+          || __has_feature(c_static_assert)
+#       define STATIC_ASSERT_MSG(expr, msg) _Static_assert(expr, msg)
 #   else
 #       define STATIC_ASSERT_MSG(expr, msg) switch (0) {case 0:case (expr):;}
 #   endif