Using gprof on gnome-games ?

["Geoff Buchan" <geoffrey buchan gmail com>]

Hi all,

I was trying to build some of the gnome-games so that I could profile
the code using gprof. I modified the Makefile locally to add "-pg" to
both the CFLAGS and LD_FLAGS, since gprof documentation tells me the
code must be both compiled and linked with the -pg switch. When I run a
game, it creates a file gmon.out, as I'd expect, but if I try to run
gprof on that file, I see this error:
gprof: gmon.out file is missing call-graph data

And indeed, od of the gmon.out file shows it is almost entirely filled
with 0s. I tried adding -pg to both a simple test program on my box and
another home project I have that was built with glade, and in those
cases I get a call graph. But with each of the two gnome-games I
attempted, gtali and mahjongg I generate gmon.out but gprof gives me
the error above. Do I need to disable some other switches in order to
get profiling to work ? I briefly tried removing switches for pthreads,
but that didn't help. Any guidance would be appreciated. 

Thanks,

Geoff