DProf - "Corrupting" __FILE__

[Tristan Greaves <suppressed>]

Hi,

We've got some code which currently uses __FILE__ in order to determine 
the name of the currently executing Perl script.

However, if DProf is enabled within Apache, I note that __FILE__ gets
"corrupted": it no longer contains the name of the script.

Is there a way of stopping this from happening, or should I just modify 
the various scripts to use $ENV{SCRIPT_NAME} instead?

Thanks in advance,

Tris.