compilation-mode support for Guile backtrace; v2 much simplified

[Jan Nieuwenhuizen]

Hi,

Here's a much simplified and collapsed version of compilation-mode
support for Guile backtraces.

In short: 
  -no resolving trickery of absolute file names, we'll try
   to do that upstream
  -remaining are the two non-GNU standard Guile convention regexpses

It would be nice we can have Guile-2.2 use GNU-standard error messages
in backtraces, but either way we'll probably have to live with current
guile backtraces for quite some time.

Greetings, Jan


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Jan Nieuwenhuizen <address@hidden> | GNU LilyPond http://lilypond.org
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