Looking for help profiling GNUstep programs

[Richard Frith-Macdonald]

It's many years since I tried profiling stuff with 'make profile=yes' and 
using gprof

As far as I can recall. mostly when I did it, I was generally optimising the 
base library, and statically linking it with a tiny tool written to exercise 
the bit of code I was interested in.

Now I need to profile some real world programs which dynamically link in the 
base library and several other Objective-C libraries, and I'm having 
trouble.  In spite of building all the ObjC libraries with 'make debug=yes 
profile=yes', when I run gprof on the gmon.out produced by the program, I 
get nothing reported for the base library or any of my own objc libraries 
(which do most of the work).

Am I doing something stupid?
Does anyone have experience with profiling share objc libraries (I'm working 
on debian unstable intel).