Guile 1.5.1 - install report

[Sven . Hartrumpf]

1.5.1 builds fine under Solaris 2.7 and gcc 2.95.2.
My last experience with guile was version 1.4.
The documentation has improved a lot since then!

Two minor suggestions:
- a section on performance tuning via options would be nice in doc/*.texi
  (guile is quite slow, at least without changing options)
- (debug-disable 'debug) in .guile has no effect (non-boolean options do work):
  > (debug-options)
(show-file-name #t stack 0 debug depth 20 maxdepth 1000 frames 3 indent 10 
width 79 procnames cheap)