Re: Largefile tests

[Paul Eggert]

> Date: Thu, 28 Dec 2000 22:36:22 +0100 (MET)
> From: Joerg Schilling <address@hidden>

> I did it this way and added a test for large file ability at all.

Your version fixes the immediate problem with _XOPEN_SOURCE, but it is
missing some of the other improvements that are in my version:

* There's no need to set _LARGEFILE_SOURCE unless you're using
  fseeko/ftello, so break this test out into a separate macro
  AC_FUNC_FSEEKO.

* Do not reject compilers that incorrectly use C++-style rules to
  evaluate large integer constants.  (These are apparently quite
  popular in some environments.)

> This was needed because I now cannot just check for _LFS_LARGEFILE
> as the standard proposes.

Yes.  _LFS_LARGEFILE was never really adopted.  Even the latest POSIX
draft doesn't talk about the largefile stuff (I think because they
hope it'll go away :-).