--- pjproject-2.4/pjlib/include/pj/config.h.orig	2015-05-05 11:41:56.300102158 +0100

+++ pjproject-2.4/pjlib/include/pj/config.h	2015-05-05 11:44:45.400282720 +0100

@@ -287,7 +287,15 @@

 #   define PJ_M_NAME		"powerpc"

 #   define PJ_HAS_PENTIUM	0

 #   if !PJ_IS_LITTLE_ENDIAN && !PJ_IS_BIG_ENDIAN

-#   	error Endianness must be declared for this processor

+#      if (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)

+#         define PJ_IS_LITTLE_ENDIAN	1

+#         define PJ_IS_BIG_ENDIAN	0

+#      elif (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)

+#         define PJ_IS_LITTLE_ENDIAN	0

+#         define PJ_IS_BIG_ENDIAN	1

+#      else

+#         error Endianness must be declared for this processor

+#      endif

 #   endif

 #elif defined (PJ_M_NIOS2) || defined(__nios2) || defined(__nios2__) || \