Added gnu90 test

work-around : disabled automatic selection of huff0 quad-decoder (see #173)

lib/compress/zstd_compress.c

@@ -852,7 +852,7 @@ MEM_STATIC void ZSTD_storeSeq(seqStore_t* seqStorePtr, size_t litLength, const B
     static const BYTE* g_start = NULL;
     const U32 pos = (U32)(literals - g_start);
     if (g_start==NULL) g_start = literals;
-    if ((pos > 5810300) && (pos < 5810500))
+    if ((pos > 2587900) && (pos < 2588050))
         printf("Cpos %6u :%5u literals & match %3u bytes at distance %6u \n",
                pos, (U32)litLength, (U32)matchCode+MINMATCH, (U32)offsetCode);
 #endif