Re: [CFT] sed prerelease on alpha.gnu.org

[Matthew Woehlke]

Ralf Wildenhues wrote:
> I haven't followed this thread, so bear with me, please.

No worries :-). It looks like you noticed everything that is gnulib-related.

> * Matthew Woehlke wrote on Wed, Apr 29, 2009 at 06:09:51PM CEST:
> > For now I'm just going to use 'CC="cc -qlanglvl=stdc99"'. I don't know  
> > how hard you want to try to make this work out of the box, but the  
> > previous change should probably be reverted.
>
> Typically, -qlanglvl=extc99 is a better choice for GNU software.

I tried that also, but it results in configure picking '-qlanglvl=extc99 
-qlanglvl=ansi', which presumably defeats the purpose. (IOW, extc99 mode 
is not C89-compliant as autoconf is checking for that; stdc99 mode 
however is accepted.)

> > FYI: adding the autoconf check to turn on c99 mode is broken; autoconf  
> > picks up -qlanglvl=ansi from the ANSI c89 check, and doesn't know how to  
> > try alternatives (this affects other GNU packages as well, most notably  
> > coreutils).
>
> Can you reformulate this paragraph so that it can serve as a bug report
> against Autoconf and/or other affected GNU packages?  IOW: what exactly
> is broken, using AC_PROG_CC_C99 after AC_PROG_CC_C89?

I've no idea. I just know that at least coreutils does it in such a way 
that configure doesn't figure out to use either of 
-qlanglvl={std,ext}c99. And that I've seen the same thing in other packages.

--
Matthew
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