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From:	"Dave Korn" <dave DOT korn AT artimi DOT com>
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Subject:	RE: Missing isnand in 2006-02-27 snapshot
Date:	Tue, 28 Feb 2006 15:15:11 -0000
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On 28 February 2006 14:41, Jerry D. Hedden wrote:

> I can build Perl just fine with the 2006-02-24 snapshot.
> When I use the 2006-02-27 snapshot (2006-02-28
> 04:45 GMT), I get the following failures:
> 
> /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'
> collect2: ld returned 1 exit status
> 
> Searching through the snapshot diff, I couldn't find any
> reference to 'isnand'.  Nor could I find 'isnand' in the
> referenced source file.  Can anyone divine what the
> trouble might be?


  This will be related to the latest 'isnan' changes[*]; it's in src/newlib,
not src/winsup/cygwin which is why you don't see it in the source file.  Can't
tell immediately what's going on because I haven't d/l'ed the snapshot: did
you get the full snapshot, or just the dll?

  ___isnand is a new function that performs isnan() testing on a double.
There's a corresponding ___isnanf newly added as well.  Looks like your build
found the new headers but the new dll doesn't export the functions yet - maybe
we need to update cygwin.din or something, I'll check.

    cheers,
      DaveK

[*] http://cygwin.com/ml/cygwin/2006-02/msg00968.html and thread.

-- 
Can't think of a witty .sigline today....


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