Index: webrtc/typedefs.h
===================================================================
--- webrtc/typedefs.h.org
+++ webrtc/typedefs.h
@@ -47,6 +47,12 @@
 #elif defined(__pnacl__)
 #define WEBRTC_ARCH_32_BITS
 #define WEBRTC_ARCH_LITTLE_ENDIAN
+#elif defined(__powerpc64__)
+#define WEBRTC_ARCH_BIG_ENDIAN
+#define WEBRTC_ARCH_64_BITS
+#elif defined(__powerpc__)
+#define WEBRTC_ARCH_BIG_ENDIAN
+#define WEBRTC_ARCH_32_BITS
 #else
 /* instead of failing, use typical unix defines... */
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__