The use strict 'refs'; is unneeded, because strict. Apart from that, it seems to do what you want: when strict refs are disabled, &$routine_name() calls the sub with name $routine_name: 

$ perl -Mstrict -wE 'sub f { say "f" }; my $x = "f"; { no strict "refs
+"; &$x() }; &$x()'
f
Can't use string ("f") as a subroutine ref while "strict refs" in use 
+at -e line 1.

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In reply to Re: no strict refs for blocks? by moritz
in thread no strict refs for blocks? by Sewi

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