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Re: Changing @INC path detail

by dynamo (Chaplain)
on Dec 05, 2007 at 20:54 UTC ( [id://655221]=note: print w/replies, xml ) Need Help??


in reply to Changing @INC path detail

use lib is the Right way to do it, but you can also do it the same way you manipulate any other array: 
my $override_lib_path = "/usr/local/Perl/5.8.6/whatever";
my $backup_lib_path = "/lastresort/path/to/lib";

# look in $override_lib_path first
unshift @INC, $override_lib_path;

# look in $backup_lib_path last if
#  no match for a module name is found first
push @INC, $backup_lib_path;

[download]
Good luck.

Replies are listed 'Best First'.
Re^2: Changing @INC path detail
by moritz (Cardinal) on Dec 05, 2007 at 21:00 UTC
    You have to take care that you fold that into a BEGIN block, because use is evaluated at compile time.

    If you have a script like this: 

    # modify @INC
use Some::Module;

    [download]
    the use is evaluated before the # modify @ING line.

    You see, it's not as easy at it looks, which is why use lib $path; is recommended. (It checks for duplicate entries in @INC as well, which is another advantage).

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