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Date: Tue, 02 Jun 2009 13:07:49 +0100
From: Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com>
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Subject: Re: Trying to install CPAN Math::GMP. Can libgmp3 provide -libgmp?
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Marc Girod wrote:
> Trying to install the perl CPAN package Math::GMP (as a requisite for
> Net::SSH::Perl).
> I am on cygwin 1.7, and do have:
> 
> 2009> cygcheck -c libgmp3
> Cygwin Package Information
> Package              Version        Status
> libgmp3              4.3.1-1        OK
> 2009> cygcheck -l libgmp3
> /usr/bin/cyggmp-3.dll
> /usr/bin/cygmp-3.dll
> 
> However, the Makefile.PL has:
> 
> 	 'LIBS'	        => ['-lgmp'],
> 
> and will refuse to consider the dlls above.
> I tried '-lgmp-3' to no avail.
> 
> Is there syntactic sugar to fulfill the expectations?

  You need to install the related libgmp-devel package, which contains the
libgmp.dll.a import library in /usr/lib, and the build will then link against
that - avoiding any concern about a version number - instead of trying to link
directly against the DLL as a fallback, which is what is going on here.

    cheers,
      DaveK


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