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  1. or download this
    $ perl -wMstrict -e '$Module::configvar=0; if($Module::confgivar=1)
        { print "<$Module::configvar>\n"; }'
    Found = in conditional, should be == at -e line 1.
    Name "Module::confgivar" used only once: possible typo at -e line 1.
    <0>
    
  2. or download this
    BEGIN {
        package LoggingScalar;
    ...
        sub STORE { cluck "STORE"; shift->SUPER::STORE(@_) }
        tie $Module::configvar, 'LoggingScalar';
    }