Recently I setup a /home/perl with output dirs for various versions of perl builds under it, like (perl-5.10.1, perl-5.12.5, perl-5.16.3, ...etc). Each of those has a root-structured dir-struct under it... so looking in perl-5.10., I see:

Ishtar:perl/perl-5.10.1> tree -L 2 -A
.
+-- usr
    +-- bin
    +-- lib
    +-- man
[download]

To work with a given perl I can just adjust my path as in:
PATH="/home/perl/version/usr/bin:$PATH"

That works for testing... but one perl is also my system perl and under it I have along the lines of:

|-- bin -> /usr/bin
|-- etc -> /etc
|-- lib -> /usr/lib/perl5/
|-- man -> share/man
|-- share -> /usr/share
[download]

The problem comes where some modules (e.g. spamassassin) are using perl's -V:prefix and end up embedding:
'home/perl/perl-5.MAJ.MIN/site_perl/5.MAJ.MIN
for their libs and an absolute path on the first line:
#!/home/perl/perl.5.xx.yy/usr/bin/perl

ICK!.... I just want libs to use /usr/bin/perl. and look for their libs in /usr/lib/perl5/site_perl/perl-5.MAJ.

IT seems like the ideal would be some way of telling perl to report it's information based on the path it was called from, -- not where it was built, but ihow do I change (or is it possible to change) the 'V:prefix' value when I have it running from the new location?

I'm sure there's some easy way to do it, but I wouldn't know where to begin looking...*sigh*--things are always easier to find when you know where they are.. ;-)

Thanks!