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Date: Tue, 19 May 2015 13:29:18 -0400
Message-Id: <201505191729.t4JHTIRe011541@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: <83vbfo7a74.fsf@gnu.org> (message from Eli Zaretskii on Tue, 19
	May 2015 20:23:43 +0300)
Subject: Re: ANNOUNCE: DJGPP 2.05 beta 1
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> > I think they're talking about the fact that gcc will internally add
> > -I's for its own headers dir, ahead of the system headers dir.
> 
> Is that true even with -nostdinc?

The argument is that we can't rely on that, because the users won't be
using it.

The answer, however, is no.  With --nostdinc, neither gcc's nor (I
assume, since I'm testing on Linux) djgpp's implicit includes are
included in the search list.

> Yes, I agree.  So if we no longer have a reason to include GCC's
> headers while building the library, we should remove that inclusion
> from makefile.inc, I think.

Exception: if the "reason" is "the headers are broken", then we should
instead fix the headers.  Otherwise, users will not get the same
headers as libc, and will/may still see the broken behavior.

> It's AFAIK the job of a platform maintainer for GCC,

The #include_next's are typically available for all platforms, unless
an exception is made.  That complicates things upstream.

> but I'm no longer sure what exactly is the status of DJGPP support
> in GCC.  Do they consider us a dead platform?  Debug info has been
> semi-broken for years.

We (Andris :) maintain our own port with some djgpp-specific changes
(like codegen) pushed upstream and others (like dos-isms) not.

What's wrong with the debug info?