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Re: unusable backtrace

From: Werner LEMBERG
Subject: Re: unusable backtrace
Date: Sun, 27 Mar 2022 05:48:53 +0000 (UTC)

>> IMHO, this is completely useless.  There is not a single hint to
>> the location of the error – why does Guile treat
>> `define-markup-commands.scm` as an 'unknown file'?
>> What am I missing?
> That the error does not _occur_ in define-markup-commands.scm?
> define-markup-command is a macro.  Apparently it was executed
> successfully but leaving a faulty markup definition that blows up at
> the time interpret-markup tries instantiating the markup in the
> current output definition.  Since the macro has already executed
> successfully, substituting different code for the original code, its
> connection to the code that is now blowing up is no longer there.

Hopefully you are not right, and it is rather a problem with missing
byte compilation.  Otherwise debugging markup functions would have
become incredibly hard.


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