New submission from Trent Mick <[EMAIL PROTECTED]>: Revision 63955 removed a block from configure.in (and effectively from pyconfig.h.in) having to do with endianness that results in an incorrect setting for "WORDS_BIGENDIAN" in Universal builds on Mac OS X.
The removed part was this: > AH_VERBATIM([WORDS_BIGENDIAN], > [ > /* Define to 1 if your processor stores words with the most significant byte > first (like Motorola and SPARC, unlike Intel and VAX). > > The block below does compile-time checking for endianness on platforms > that use GCC and therefore allows compiling fat binaries on OSX by using > '-arch ppc -arch i386' as the compile flags. The phrasing was choosen > such that the configure-result is used on systems that don't use GCC. > */ > #ifdef __BIG_ENDIAN__ > #define WORDS_BIGENDIAN 1 > #else > #ifndef __LITTLE_ENDIAN__ > #undef WORDS_BIGENDIAN > #endif > #endif]) This used to allow "WORDS_BIGENDIAN" to be correct for all parts of a universal Python build done via `gcc -arch i386 -arch ppc ...`. This was originally added for issue 1471883 (see msg50040 for a discussion of this particular bit). The result of this bug is that Python extensions using either of the following to get native byte ordering for UTF-16 decoding: PyUnicode_DecodeUTF16(..., byteorder=0); PyUnicode_DecodeUTF16Stateful(..., byteorder=0, ...); on Mac OS X/PowerPC with a universal build built on Intel hardware (most such builds) will get the wrong byte-ordering. The fix is to restore that section to configure.in and re-run autoconf and autoheader. Ronald, Was there are particular reason that this block was removed from configure.in (and pyconfig.h.in)? I'd like to hear comments from either Ronald or Martin, and then I can commit the fix. ---------- components: Unicode messages: 74398 nosy: loewis, ronaldoussoren, trentm severity: normal status: open title: PyUnicode_DecodeUTF16(..., byteorder=0) gets it wrong on Mac OS X/PowerPC type: behavior versions: Python 2.6 _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue4060> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
