zstd: make compilable with tcc

Author: medvednikov

thirdparty/zstd/zstd.c

@@ -719,7 +719,7 @@ int g_debuglevel = DEBUGLEVEL;
 /* vectorization
  * older GCC (pre gcc-4.3 picked as the cutoff) uses a different syntax,
  * and some compilers, like Intel ICC and MCST LCC, do not support it at all. */
-#if !defined(__INTEL_COMPILER) && !defined(__clang__) && defined(__GNUC__) && !defined(__LCC__)
+#if !defined(__INTEL_COMPILER) && !defined(__clang__) && defined(__GNUC__) && !defined(__LCC__) && !defined(__TINYC__)
 #  if (__GNUC__ == 4 && __GNUC_MINOR__ > 3) || (__GNUC__ >= 5)
 #    define DONT_VECTORIZE __attribute__((optimize("no-tree-vectorize")))
 #  else