Looking at code in pmd_grapher in the CPAN Module::Dependency I find the following: 
use strict;
use Module::Dependency::Grapher;
*Module::Dependency::Grapher::TRACE = \*TRACE;

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I'm puzzled by the use of globs here. Examining the code shows that only &TRACE is used, not %TRACE, $TRACE or @TRACE. I would have expected to see 
use strict;
use Module::Dependency::Grapher qw(&TRACE);

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Is there something fancy the author is doing with globs here? Is there some practical difference?

In reply to Importing functions into packages - globs vs use by throop

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