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Re: Failure in building GFortran on Cygwin
- From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Sat, 1 Dec 2007 11:31:55 +0100
- Subject: Re: Failure in building GFortran on Cygwin
- References: <Pine.CYG.4.58.0711292328360.1532@homepc> <474F61CD.1060405@verizon.net> <20071130142008.GX30894@calimero.vinschen.de> <47501D95.3030200@byu.net> <20071130145842.GY30894@calimero.vinschen.de> <20071130213601.GC24092@ednor.casa.cgf.cx>
- Reply-to: cygwin at cygwin dot com
On Nov 30 16:36, Christopher Faylor wrote:
> On Fri, Nov 30, 2007 at 03:58:42PM +0100, Corinna Vinschen wrote:
> >On Nov 30 07:26, Eric Blake wrote:
> >> -----BEGIN PGP SIGNED MESSAGE-----
> >> Hash: SHA1
> >>
> >> According to Corinna Vinschen on 11/30/2007 7:20 AM:
> >> >
> >> > However, this *is* a problem in the newlib/cygwin headers. Cygwin
> >> > exports a timezone function and a _timezone variable. The timezone
> >> > function was an ill-advised invention in Cygwin way back in the last
> >> > century. Unfortunately it has to be kept for backward compatibility.
> >>
> >> For 1.5.x, yes. But can we delete timezone() for 1.7.x, on the grounds
> >> that any binary that still uses the timezone function is old enough that
> >> it would benefit from re-porting to the latest cygwin sources anyway?
> >
> >I'm thinking along the same lines. While that breaks backward
> >compatibility, I'm not overly concerned in case of applications which
> >have never been ported to a newer Cygwin version the last 10 or so
> >years.
>
> But we do have a fairly transparent way of dealing with this problem which
> will allow any ancient apps to continue to work. We used it for the transition
> from 32 -> 64 bit file I/O.
Unfortunately it doesn't work for variables. We can hide the timezone
function, but how do we alias timezone to _timezone in libcygwin.a?
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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