I have set
makepl_arg [INSTALLDIRS=site PREFIX=~/perl]
mbuildpl_arg [--install_base ~/perl]
in the CPAN.pm configuration. I had hoped that this would cause modules to get installed in the same place, but I still have to set multiple paths in PERL5LIB:
export PERL5LIB=~/perl/share/perl/5.10.0:~/perl/lib/perl5/:~/perl/lib/perl/5.10.0
This has been the case for a long time and I have just lived with it, but I was wondering if anyone knew how to get CPAN.pm to put all modules in the same directory?
Install local::lib. It will handle all the configuration for you.
Have you tried using INSTALL_BASE for both? You have to set multiple directories because you're telling CPAN.pm to install in multiple directories. Tell it to install everything in the same place:
makepl_arg [INSTALL_BASE=~/perl]
mbuildpl_arg [--install_base ~/perl]
来源：https://stackoverflow.com/questions/786544/how-do-i-tell-cpan-pm-to-install-all-modules-in-a-specific-directory