"I think if you want to change STDOUT globally for the debugger, some of the unicode flags in perlrun should do. (untested)"
I tried all of these:
$ perl -C -de1
...
$ perl -de1
...
DB<1> use open OUT => qw{:encoding(UTF-8) :std}
...
$ perl -Mopen=OUT,:encoding\(UTF-8\),:std -de1
...
All gave the "Wide character ..." warning.
All still printed "☺".
There's probably other avenues of investigation for a global change: I didn't try anything further.
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