--- a/libbb/hash_md5_sha.c
+++ b/libbb/hash_md5_sha.c
@@ -1313,7 +1313,9 @@ unsigned FAST_FUNC sha1_end(sha1_ctx_t *
 	hash_size = 8;
 	if (ctx->process_block == sha1_process_block64
 #if ENABLE_SHA1_HWACCEL
+# if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
 	 || ctx->process_block == sha1_process_block64_shaNI
+# endif
 #endif
 	) {
 		hash_size = 5;
