diff --git a/net/pjsip/files/patch-third__party_webrtc_src_webrtc_typedefs.h b/net/pjsip/files/patch-third__party_webrtc_src_webrtc_typedefs.h
index e69de29bb2d1..3a44ff9c47d9 100644
--- a/net/pjsip/files/patch-third__party_webrtc_src_webrtc_typedefs.h
+++ b/net/pjsip/files/patch-third__party_webrtc_src_webrtc_typedefs.h
@@ -0,0 +1,23 @@
+--- third_party/webrtc/src/webrtc/typedefs.h.orig      2017-01-07 23:05:15 UTC
++++ third_party/webrtc/src/webrtc/typedefs.h
+@@ -48,7 +48,19 @@
+ #define WEBRTC_ARCH_32_BITS
+ #define WEBRTC_ARCH_LITTLE_ENDIAN
+ #else
+-#error Please add support for your architecture in typedefs.h
++/* instead of failing, use typical unix defines... */
++#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
++#define WEBRTC_ARCH_LITTLE_ENDIAN
++#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
++#define WEBRTC_ARCH_BIG_ENDIAN
++#else
++#error __BYTE_ORDER__ is not defined
++#endif
++#if defined(__LP64__)
++#define WEBRTC_ARCH_64_BITS
++#else
++#define WEBRTC_ARCH_32_BITS
++#endif
+ #endif
+ 
+ #if !(defined(WEBRTC_ARCH_LITTLE_ENDIAN) ^ defined(WEBRTC_ARCH_BIG_ENDIAN))