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Date:	Thu, 2 Mar 2006 15:33:46 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: 'Missing isnand' still not fixed in 2006-03-01 snapshot
Message-ID:	<20060302143346.GA22718@calimero.vinschen.de>
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On Mar  2 07:20, Jerry D. Hedden wrote:
> Jerry D. Hedden wrote:
> > Using cygwin-inst-20060301.tar.bz2 (dll, exes, libs, headers, etc) from
> > the 2006-03-01 (23:10 GMT) snapshot, I'm still getting these errors when
> > building Perl:
> >
> > /c/perl_tmp/perl-5.8.8/libperl.a(pp.o):pp.c:(.text+0x643b): undefined
> > reference to `___isnand'
> > /c/perl_tmp/perl-5.8.8/libperl.a(pp.o):pp.c:(.text+0x64f2): undefined
> > reference to `___isnand'
> > /c/perl_tmp/perl-5.8.8/libperl.a(pp.o):pp.c:(.text+0x6506): undefined
> > reference to `___isnand'
> 
> Corinna Vinschen replied:
> > The libraries libcygwin.a and libm.a *do* contain the symbols ___isnand
> > and __imp____isnand, though.
> 
> I don't think this is correct.  I checked and found isnan and isnanf in
> both, but isnand is not in either.  In fact, I check all the libs using:
> 
>   for file in /usr/lib/*.a; do strings $file | grep isnand; done
> 
> And got no hits.

Well, I did this:

  $ nm libcygwin.a | grep isnan
  00000000 T ___isnand
  00000000 I __imp____isnand
  00000000 T ___isnanf
  00000000 I __imp____isnanf
  00000000 I __imp___isnan
  00000000 T __isnan
  00000000 I __imp___isnanf
  00000000 T __isnanf
  00000000 I __imp__isnan
  00000000 T _isnan
  00000000 I __imp__isnanf
  00000000 T _isnanf
  $ nm libm.a | grep isnan
  00000000 T ___isnand
  00000000 I __imp____isnand
  00000000 T ___isnanf
  00000000 I __imp____isnanf
  00000000 I __imp__isnan
  00000000 T _isnan
  00000000 I __imp__isnanf
  00000000 T _isnanf

I don't see what would be wrong here.  Do you have older libs from
Cygwin in a path which might happen to be searched before the path with
the real files?  Did you try the --verbose optin to gcc?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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