A use is basically a require plus a call to the import sub of the included package.

And import is executed in the context of the calling package.

Thus you can call other imports inside a generic import to export into the calling namespace.

For instance:

 
package generic; 
use strict;         # *
...
sub import { 
    strict->import();
    ...
}
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You might wanna have a look into the source of Modern::Perl for more examples.

Update

*) Had to change require strict; to use strict; to make it work. (not sure why)

Answer

It's a timing issue, the require has to happen in a BEGIN or inside the import (use does it automatically), this works

package generic; 

sub import {
    require  strict; 
    strict->import();
    ...
}

1;
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