Have you tried this?: 
Package mysub;

sub 1 {

}

sub 2 {

}

1;

[download]
In the Caller you can say at the start of the script: require mysub; And use the module only when you really need it with: use mysub;

In reply to Re: Using "USE" instead of "DO" for subroutines call in external file by tucano
in thread Using "USE" instead of "DO" for subroutines call in external file by Anonymous Monk

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