Net::SSH::Perl and PARI

0xbeef has asked for the wisdom of the Perl Monks concerning the following question:

I have encountered the following interesting problem. My original intention was to install Net::SSH::Perl using cpan. cpan will automatically download and attempt to install Math::Pari, but I seem to have to update all modules (e.g. /usr/lib/perl5/site_perl/5.8.6/Crypt/DH.pm) to use Pari instead of GMP manually:

use Math::BigInt lib => "GMP";

use Math::BigInt lib => "Pari";

Is there a more elegant way of switching to PARI than this?

0xbeef

Comment on Net::SSH::Perl and PARI Select or Download Code

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Re: Net::SSH::Perl and PARI
by PodMaster (Abbot) on Nov 22, 2005 at 13:56 UTC

but I seem to have to update all modules (e.g. /usr/lib/perl5/site_perl/5.8.6/Crypt/DH.pm) to use Pari instead of GMP manually:

use Math::BigInt qw' lib Pari ';
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See MATH_LIBRARY in Math::BigInt docs.

The fact that modules like Crypt::DH and Crypt::DSA::KeyChain specify which library they prefer should have no effect on which library is actually used.

update: actually, you should use Math::BigInt qw' lib Pari '; last (after use Net::SSH...).

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Re^2: Net::SSH::Perl and PARI

by 0xbeef (Hermit) on Nov 22, 2005 at 15:26 UTC

use Math::BigInt lib => "GMP";

0xbeef

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Re^3: Net::SSH::Perl and PARI

by PodMaster (Abbot) on Nov 22, 2005 at 15:39 UTC

If you've got both Math::BigInt::GMP and Math::BigInt::Pari installed, you've effectively loaded both of them, and DH.pm is using Math::BigInt::Pari since it was loaded last :)

See 16032 lib GMP versus lib PARI versus lib GMP,PARI.

For now, you should only install one of them.

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