defined(%hash) makes no sense.

In 5.16, it was deprecated and it started warning you that you needed to stop using it.

In 5.22, it became a fatal error.

The parser probably can't continue because this isn't an error encountered by the parser. You could use perlbug to file a ticket asking that this type of error doesn't stop the parser.

In reply to Re^3: Show all errors on compile time by ikegami
in thread Show all errors on compile time by ifazlives

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