--- a/media/webrtc/trunk/build/build_config.h

+++ b/media/webrtc/trunk/build/build_config.h

@@ -123,7 +123,9 @@

 #define ARCH_CPU_PPC_FAMILY 1

 #define ARCH_CPU_PPC64 1

 #define ARCH_CPU_64_BITS 1

+#ifndef _LITTLE_ENDIAN

 #define ARCH_CPU_BIG_ENDIAN 1

+#endif

 #elif defined(__ppc__) || defined(__powerpc__)

 #define ARCH_CPU_PPC_FAMILY 1

 #define ARCH_CPU_PPC 1

@@ -156,6 +158,9 @@

 #elif defined(__alpha__)

 #define ARCH_CPU_ALPHA 1

 #define ARCH_CPU_64_BITS 1

+#elif defined(__aarch64__)

+#define ARCH_CPU_AARCH64 1

+#define ARCH_CPU_64_BITS 1

 #else

 #error Please add support for your architecture in build/build_config.h

 #endif