diff --git a/lib/common/compiler.h b/lib/common/compiler.h
index 9e2a8fe70..012ff0221 100644
--- a/lib/common/compiler.h
+++ b/lib/common/compiler.h
@@ -150,8 +150,9 @@
 }
 
 /* vectorization
- * older GCC (pre gcc-4.3 picked as the cutoff) uses a different syntax */
-#if !defined(__INTEL_COMPILER) && !defined(__clang__) && defined(__GNUC__)
+ * 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 (__GNUC__ == 4 && __GNUC_MINOR__ > 3) || (__GNUC__ >= 5)
 #    define DONT_VECTORIZE __attribute__((optimize("no-tree-vectorize")))
 #  else
diff --git a/programs/zstdcli.c b/programs/zstdcli.c
index e496852f3..9178a4bef 100644
--- a/programs/zstdcli.c
+++ b/programs/zstdcli.c
@@ -741,7 +741,7 @@ typedef enum { zom_compress, zom_decompress, zom_test, zom_bench, zom_train, zom
 # define MAXCLEVEL  ZSTD_maxCLevel()
 #endif
 
-int main(int const argCount, const char* argv[])
+int main(int argCount, const char* argv[])
 {
     int argNb,
         followLinks = 0,