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Re: [RFC] Make _FILE_OFFSET_BITS=64 default.
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Paul Eggert <eggert at cs dot ucla dot edu>
- Cc: Mike Frysinger <vapier at gentoo dot org>, <libc-alpha at sourceware dot org>
- Date: Thu, 20 Mar 2014 01:46:15 +0000
- Subject: Re: [RFC] Make _FILE_OFFSET_BITS=64 default.
- Authentication-results: sourceware.org; auth=none
- References: <1393521776-1102-1-git-send-email-reprofy at etersoft dot ru> <3427802 dot 83HSs9lgGH at vapier> <532956D4 dot 5020804 at cs dot ucla dot edu> <9842031 dot PgVxWc0IpI at vapier> <5329DC42 dot 2000409 at cs dot ucla dot edu> <Pine dot LNX dot 4 dot 64 dot 1403191841590 dot 14867 at digraph dot polyomino dot org dot uk> <532A41AA dot 9060208 at cs dot ucla dot edu>
There's another problem with using such an assertion in fts.h: it's not
the correct condition for the two ABIs to be the same. On MIPS n64,
struct stat and struct stat64 have different layout and so
_FILE_OFFSET_BITS=64 is an ABI change despite __off_t and __off64_t having
the same size (and part of the public fts interface is a pointer to struct
stat).
--
Joseph S. Myers
joseph@codesourcery.com