diff --git a/common-src/amutil.c b/common-src/amutil.c
index b46ad77..4b356d6 100644
--- a/common-src/amutil.c
+++ b/common-src/amutil.c
@@ -1904,6 +1904,9 @@ static int get_sse42(void)
 #endif
     return (ecx >> 20) & 1;
 }
+#else /* if defined __x86_64__ || defined __i386__ ... */
+static int get_sse42(void) {
+}
 #endif
 
 static uint32_t crc_table[16][256];