*/
#if defined(_MSC_VER)
-# if _MSC_VER < 1800 || (_MSC_FULL_VER < 180031101 && !defined(__clang__))
-# error "Microsoft Visual Studio 2013 Update 4 or higher required"
+# if _MSC_VER < 1900
+# error "Microsoft Visual Studio 2015 or higher required"
# endif
/*
#endif
-/* Fallback definitions, for build systems other than autoconfig which don't
- * auto-detect these things. */
-#ifdef HAVE_NO_AUTOCONF
+/* Fallback definitions, for scons which doesn't auto-detect these things. */
+#ifdef HAVE_SCONS
# ifndef _WIN32
# define HAVE_PTHREAD
# endif /* __GNUC__ */
-#endif /* !HAVE_AUTOCONF */
+#endif /* HAVE_SCONS */
#endif /* _C99_COMPAT_H_ */