[PATCH] Re: GUILE error reporting has changed for worse in 2.15 (compared to 2.12), useless now

[Reinhold Kainhofer]

Am Mittwoch, 3. August 2011, 21:39:43 schrieb Reinhold Kainhofer:
> However, in lilypond 2.15.9 (and probably also some earlier versions),
> lilypond suddenly only prints out the error message, but not where the
> error occurred (neither file nor expression is displayed):
[...]
> Is there any way to revert GUILE's error reporting back to the 2.12
> "verbose" output?
> I think this deserves a bug report with priority "High", according to the
> latest GOP-8 ("anything which makes it difficult for serious contributors
> to help out (e.g. difficult to find the relevant source tree(s), [...]).")

After some git bisect'ing, the offending commit is 
52bea08ef73a55ee3091f3267ee7075c066d13c5, which removed all (debug-enabled 
debug) calls with the reason that they caused deprecation warnings (but also 
printed out vital path/backtrace information!).

Here is a patch, which reverts those debug changes:
   http://codereview.appspot.com/4815085/

The reason for the initial removal was to suppress deprecation warnings with 
guile 2.0, but that should be easier achieved with setting warn-deprecated to 
#f.

See guile's 1.8 documentation:
    http://www.gnu.org/software/guile/docs/docs-1.8/guile-ref/Debugger-
options.html#Debugger-options

And the 2.0 documentation:
    http://www.gnu.org/software/guile/manual/html_node/Debug-Options.html

Any objections to applying this patch and reinstating the old, working 
behavior of scheme error messages? I have not tested the patch with guile 2.0, 
though, since I only have 1.8 installed and in use.

Cheers,
Reinhold
-- 
------------------------------------------------------------------
Reinhold Kainhofer, address@hidden, http://reinhold.kainhofer.com/
 * Financial & Actuarial Math., Vienna Univ. of Technology, Austria
 * http://www.fam.tuwien.ac.at/, DVR: 0005886
 * LilyPond, Music typesetting, http://www.lilypond.org