I'm guessing your file "MRlib.pl" has a mapping from package name to file to require.
Use that package name list to generate and eval a set of *${packagename}::AUTOLOAD = \&FP::AUTOLOAD; statements.
That may have to be in a BEGIN block.

UPDATE: fixed ')' to '}'

> and eval a set of

no eval needed with no strict 'refs';

use strict;
use warnings;


package FP;
sub AUTOLOAD {
    our $AUTOLOAD;
    print "hello $AUTOLOAD\n"
}

my @pkgs =qw/BLA BLUB MyHomepage::Introduction/;


for my $PKG (@pkgs) {
    no strict 'refs';
    *{ "${PKG}::AUTOLOAD" } = \&FP::AUTOLOAD
}

BLA::bla();
MyHomepage::Introduction::intro();
[download]

hello BLA::bla
hello MyHomepage::Introduction::intro
[download]

But I already suggested Importing in my first reply ...

update

BTW: typo

*${packagename)::AUTOLOAD = \&FP::AUTOLOAD;
              ^
[download]

Cheers Rolf
_{(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery}