Index: head/multimedia/mswebrtc/Makefile
===================================================================
--- head/multimedia/mswebrtc/Makefile
+++ head/multimedia/mswebrtc/Makefile
@@ -12,9 +12,6 @@
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-NOT_FOR_ARCHS=		powerpc powerpc64 powerpcspe
-NOT_FOR_ARCHS_REASON=	Define either WEBRTC_ARCH_LITTLE_ENDIAN or WEBRTC_ARCH_BIG_ENDIAN
-
 LIB_DEPENDS=	libbctoolbox.so:net/bctoolbox \
 		libmediastreamer_base.so:net/mediastreamer \
 		libortp.so:net/ortp
Index: head/multimedia/mswebrtc/files/patch-webrtc_webrtc_typedefs.h
===================================================================
--- head/multimedia/mswebrtc/files/patch-webrtc_webrtc_typedefs.h
+++ head/multimedia/mswebrtc/files/patch-webrtc_webrtc_typedefs.h
@@ -0,0 +1,23 @@
+--- webrtc/webrtc/typedefs.h.orig	2019-08-04 15:52:12 UTC
++++ webrtc/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))