GNUCash compiled against Guile 1.9.x for Guile profiler?

[Jeff Kletsky]

Guile 1.9.x appears to have a "real" profiler, if I can ever get it to 
build on Ubuntu Karmic. Not unsurprisingly, I wasn't successful in my 
admittedly brief efforts in getting the profiler to run with Guile 1.6.

I had searched the archives about Guile 1.9 or 2.0 and found very little 
beyond some patches and concerns about some potential incompatibilities 
with Guile 2.0. Before I spend any more time on getting Guile 1.9.x to 
build, is there any experience already on building GNUCash against 1.9.x?

Jeff