The GMP warning sounds like your system is missing header files for libgmp (aka the development package for libgmp).

In reply to Re^3: Math::BigInt: couldn't load specified math lib(s), fallback to Math::BigInt::Calc at /usr/lib/perl5/site_perl/5.8.8/Crypt/DH.pm line 6 by choroba
in thread Math::BigInt: couldn't load specified math lib(s), fallback to Math::BigInt::Calc at /usr/lib/perl5/site_perl/5.8.8/Crypt/DH.pm line 6 by sugarboy

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