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Re: Fixed build failure on Linux in cppfiles (_XOPEN_SOURCE is evil)


On Sep 16, 2000, Mark Mitchell <mark@codesourcery.com> wrote:

>>>>>> "Alexandre" == Alexandre Oliva <aoliva@redhat.com> writes:
>>> Defining these macros unconditionally on all systems is a
>>> mistake.

Alexandre> Agreed.  I just approved the patch to get the tree in a
Alexandre> buildable state again, at least on GNU/Linux.

> OK, I'm glad you agree.

Alexandre> I think we could leave the tree as is for the next
Alexandre> snapshot and see what breaks, then decide our next
Alexandre> step.

> In general, when we leave something be, we don't come back to it.

If it doesn't cause problems on the 15+ platforms I build weekly, it's
unlikely to cause much trouble to anybody else :-)

>   - Experimentally determine which of these macros are needed.

>     This is analagous to trying the inclusion of several different
>     header files hoping to get a declaration of some function foo,
>     where different systems put it in different header files.

This is the autoconf way.

>   - Notice that we are using glibc, or particular versions of glibc,
>     and turn on the defines there, since we know what they will do.

But this is probably the way to go at this time.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me

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