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Re: misleading message and exit code when "program too old"


From: Malte Meyn
Subject: Re: misleading message and exit code when "program too old"
Date: Wed, 11 Nov 2015 14:28:11 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0



Am 11.11.2015 um 14:19 schrieb Johannes Waldmann:
Hi. I am getting this:

Parsing...
error: program too old: 2.18.2 (file requires: 2.19.0)

but apparently it's not an error,
Yes, it is because the file states to need version 2.19.0 and you cannot be sure that 2.18.2 will be sufficient.
since the processing continues,
and the pdf file is produced.

It might run without any other errors because you don’t use new functions or syntax from 2.19.0. But the output of 2.19 is different in some cases (f. e. the whiteouts and multi-measure rests) so it makes sense to report the different versions.

If you’re okay with the changes 2.19.0 makes, why not change the \version statement? (And why 2.19.0, not 2.19.2x?)



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