From occitan@esperanto.org

Both 5.004 on Siemens Reliant Unix and 5.005 on the same and SuSE Linux
6.2​:

While exploring how to make iPerl give out proper line-numbers, I
happened on the fact that I can have the C preprocessor transform my
Perl-programme. Surprise​: The #line directives even work when the -P
option is not given. That means an innocent comment like

# line 34

or way more hairy yet

# 123 "foobar"

is going to completely mess up any error messages!

While this is exactly what I need for iPerl, I consider it a bug, and
I'd be much happier assigning to __LINE__ or __FILE__. But please don't
turn it off, without giving me an alternative!

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