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Date: Tue, 20 Oct 2015 21:49:43 +0300
From: "Vladimir Zhbanov (vzhbanov AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Subject: Re: [geda-user] C99
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On Tue, Oct 20, 2015 at 02:18:38PM -0400, DJ Delorie wrote:
> 
> > Probably I have an opportunity to ask a question about the C99 standard :)
> > Are any issues mentioned at [1] still relevant? Could any issues appear if
> > we start to support it?
> 
> My only concern about C99 is that, despite appearing to be 16 years
> old, it's not.  GCC 4 still defaults to C89, you need to override the
> default or use GCC 5 to get C99 by default.
> 
> The big disconnect between C89 and C99 is the difference between
> "extern inline" and "static inline", GCC 4's interpretation is
> different than GCC 5's, so we should avoid those constructs during the
> migration.

OK, thanks for that.

Does it mean that functions related to C99 like 'hypot' cannot be used
yet (at least wikipedia mentions C99 as one of the languages supporting
it)? (I've seen them a while ago in a branch by Sergey Stepanov, our new
developer, though now I cannot find that branch in the repo.)