--- a/contrib/python-zstandard/zstd/common/cpu.h	Tue Sep 25 20:55:03 2018 +0900
+++ b/contrib/python-zstandard/zstd/common/cpu.h	Mon Oct 08 16:27:40 2018 -0700
@@ -36,7 +36,7 @@
     U32 f1d = 0;
     U32 f7b = 0;
     U32 f7c = 0;
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && (defined(_M_X64) || defined(_M_IX86))
     int reg[4];
     __cpuid((int*)reg, 0);
     {
@@ -72,8 +72,7 @@
           "cpuid\n\t"
           "popl %%ebx\n\t"
           : "=a"(f1a), "=c"(f1c), "=d"(f1d)
-          : "a"(1)
-          :);
+          : "a"(1));
     }
     if (n >= 7) {
       __asm__(