portaudio x86-64 endiannes fix

Index: iaxclient/lib/portaudio/src/common/pa_endianness.h===================================================================--- iaxclient/lib/portaudio/src/common/pa_endianness.h	(revision 42)+++ iaxclient/lib/portaudio/src/common/pa_endianness.h	(working copy)@@ -88,7 +88,7 @@     /* set PA_LITTLE_ENDIAN or PA_BIG_ENDIAN by testing well known platform specific defines */ -   #if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || defined(LITTLE_ENDIAN) || defined(__i386) || defined(_M_IX86)+   #if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || defined(LITTLE_ENDIAN) || defined(__i386) || defined(_M_IX86) || (defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN)       #define PA_LITTLE_ENDIAN /* win32, assume intel byte order */    #else       #define PA_BIG_ENDIAN