#define FASTCALL
#endif
-#if defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) && defined(__ELF__)
+#if (defined(__GNUC__) && !defined(__CYGWIN__) && !defined(__MINGW32__)) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590) && defined(__ELF__))
#define INTERNAL __attribute__((visibility("internal")))
#else
#define INTERNAL