cpan[3]> install Math::GSL
Running install for module 'Math::GSL'
Running Build for L/LE/LETO/Math-GSL-0.22.tar.gz
  Has already been unwrapped into directory /root/.cpan/build/Math-GSL-0.22-yrnKBo
  '/usr/bin/perl Build.PL ' returned status 256, won't make
Running Build test
  Make had some problems, won't test
Running Build install
  Make had some problems, won't install