Installing Perl modules in $HOME

Introduction

This page describes how Alexis Huxley installed Perl modules in a sub-directory of his $HOME. It also records what modules he installed and why.

Procedure

1. Run the following commands:

   #  get the cpan command itself configured
   yes "" | head -20 | cpan
   #  where to install modules
   MODROOT=$HOME/opt/$(osid)/perl
   #  get new CPAN
   echo -e "o conf makepl_arg INSTALL_BASE=$MODROOT\ninstall CPAN\nreload cpan" | cpan

   (This should just be done every time; it is easier than working out of it has or has not already been run for a particular value of $(osid).)

2. To install modules run:

   # Term::ReadKey calls cc and ignores $CC and $GCC
   su - root -c "update-alternatives --install /usr/bin/cc cc /usr/bin/gcc-4.3 1"
   cpan
   # improve CPAN experience
   install Term::ReadKey
   # required for URI::ParseSearchString though latter only warns if YAML missing
   install YAML
   # web-hits script needs this
   install URI::ParseSearchString
   quit
   # Back out cc symlink
   su - root -c "update-alternatives --remove-all cc"
   # Only needed once but few steps in this procedure this way
   matrix

See also

• Computing