[Patch] Fix libstdc++/12778

[rdbrown@mira.net]

On Sun, Oct 26, 2003 at 03:48:00PM +0100, Paolo Carlini wrote:

> currently, we really support LFS only for glibc: the latter makes
> everything *so* simple, since _GNU_SOURCE, defined anyway, implicitly
> makes 64 bit operations visible. HP-UX actually has fopen64 and lseek64
> in its libc but would need appropriate defines (i.e., _FILE_OFFSET_BITS=64)
> which currently we are not prepared to pass.

> The autoconf test had an error in it: it was using the C compiler instead
> of the C++ compiler and HP-UX had _GLIBCXX_USE_LFS defined my mistake,
> thus leading to a bootstrap error when fopen64 and lseek64 tourned out
> to be not really visible at build time.

> I'm quite confident that the below is the right fix, but would appreciate
> if Rodney could bootstrap it.

Bootstrapped hppa2.0n-hp-hpux11.00 without problems, testsuite now running.
Thanks.

> Tested x86-linux.

> Paolo.

> //////////

> 2003-10-26  Paolo Carlini  <pcarlini@suse.de>

> 	PR libstdc++/12778
> 	* acinclude.m4 (GLIBCXX_CHECK_LFS): Use the C++ compiler.
> 	* aclocal.m4: Regenerate.
> 	* configure: Regenerate.