Don't use parens: 
~/info> perl -Mstrict -c -e 'foo()'
-e syntax OK

~/info> perl -Mstrict -c -e 'foo'
Bareword "foo" not allowed while "strict subs" in use at -e line 1.
-e had compilation errors.

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In reply to Re: Detect undefined subroutines by educated_foo
in thread Detect undefined subroutines by Sprad

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