CPAN install: do not have write permissions on

Installing DBIx::Class::Schema::Loader from CPAN results in some permissions error:

cpan[1]> install DBIx::Class::Schema::Loader
...
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ERROR: Can't create '/usr/local/bin'
Do not have write permissions on '/usr/local/bin'
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 at -e line 1
make: *** [pure_site_install] Error 13
  ANDK/CPAN-1.9800.tar.gz
  /usr/bin/make install  -- NOT OK
----
  You may have to su to root to install the package
  (Or you may want to run something like
    o conf make_install_make_command 'sudo make'
  to raise your permissions.Failed during this command:
 ANDK/CPAN-1.9800.tar.gz                      : install NO

Trying as suggested will do no good:

cpan[4]> o conf make_install_make_command 'sudo make'
    make_install_make_command [sudo make]
Please use 'o conf commit' to make the config permanent!

cpan[5]> install DBIx::Class::Schema::Loader
Running install for module 'DBIx::Class::Schema::Loader'
Running make for R/RK/RKITOVER/DBIx-Class-Schema-Loader-0.07017.tar.gz
  Has already been unwrapped into directory /home/jerome/.cpan/build/DBIx-Class-Schema-Loader-0.07017-_upIn_
  Has already been made
Running make test
  Has already been tested successfully
Running make install
  Already tried without success

So the solution is:

cpan[6]> force install DBIx::Class::Schema::Loader