my $dir = "/usr/local/MailControl";
$ENV{PERL5LIB}            = "$dir/lib/perl5";
$ENV{PERL_LOCAL_LIB_ROOT} = $dir;
$ENV{PERL_MB_OPT}         = qq(--install_base "$dir");
$ENV{PERL_MM_OPT}         = qq(INSTALL_BASE=$dir);

system "cpanm --no-man-pages Mail::IMAPClient";