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-rw-r--r--src/vppinfra/crc32.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/vppinfra/crc32.h b/src/vppinfra/crc32.h
index 5f4d94f3847..fec67cd9757 100644
--- a/src/vppinfra/crc32.h
+++ b/src/vppinfra/crc32.h
@@ -30,14 +30,14 @@ clib_crc32c (u8 * s, int len)
{
u32 v = 0;
-#if __x86_64__
+#if defined(__x86_64__)
for (; len >= 8; len -= 8, s += 8)
v = _mm_crc32_u64 (v, *((u64 *) s));
#else
/* workaround weird GCC bug when using _mm_crc32_u32
which happens with -O2 optimization */
#if !defined (__i686__)
- volatile ("":::"memory");
+ asm volatile ("":::"memory");
#endif
#endif