Also, when I do a perl -V on 5.8.8, the environment variable PERL_HOME is display. Is that used at all for anything?
Since PERL_HOME is not mentioned in ENVIRONMENT for 5.8.8, it does not seem to be an official Perl environment variable. It seems as though whoever set up your environment has added this specifically for your workplace. I ran a little experiment, and it seems like perl -V will display any environment variables which begin with PERL, regardless of whether they are mentioned in perlrun: 
$ perl -V
Summary of my perl5 (revision 5 version 8 subversion 8) configuration:
  Platform:
    osname=linux, osvers=2.6.9-67.elsmp, archname=x86_64-linux
...
  %ENV:
    PERLDOC="-i"
  @INC:
...
$
$ echo $PERLFOO
PERLFOO: Undefined variable.
$ setenv PERLFOO bar
$ echo $PERLFOO
bar
$ perl -V
...
  %ENV:
    PERLDOC="-i"
    PERLFOO="bar"
  @INC:
...
$

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In reply to Re: PERL_SIGNALS and PERL_HOME by toolic
in thread PERL_SIGNALS and PERL_HOME by perl5ever

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