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Date: Sun, 2 Sep 2012 11:44:59 -0400
From: Rich Felker <>
Subject: Re: Best bikeshed ever (feature test macros)

On Sun, Sep 02, 2012 at 05:27:26PM +0200, Arvid E. Picciani wrote:
> On Sun, 2 Sep 2012 11:19:18 -0400, Rich Felker wrote:
> >If software is already correctly using feature test macros, it's
> >getting an environment it selected, not the default environment, so
> >changing the default will have no effect on such software.
> I see, thanks. But then there is no software that benefits from the
> default kitchen sink.
> So it seems like a pseudo option put up just to show how bad it is :)

Well, glibc seems to be the only major system that's essentially
locked the default profile to a certain point in history, and forced
the use of a feature test macro to access even its own newer features.
Most of the BSDs reportedly make (their version of) the kitchen sink
available by default, so such a behavior might be more compatible with
certain software that was intended only for use on BSD.

Aside from that, I agree that option 2 is mostly a pseudo-option.


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