/* unaligned versions (optimized for frequent unaligned accesses)*/
-#if defined(__i386__) || defined(__powerpc__)
+#if defined(__i386__) || defined(_ARCH_PPC)
#define cpu_to_le16wu(p, v) cpu_to_le16w(p, v)
#define cpu_to_le32wu(p, v) cpu_to_le32w(p, v)