Hi Terry,
So, wiringpi is a C library, there's some example C code for it that
does PWM, and you can build and run that, using sudo, in the shell.
Doing the same, but with your C code, doesn't return to the shell.
> So I installed Geany on the Pi and built my project though it.
That's a text editor come IDE. (I've just looked it up and it saves
other doing it that are following along at home. :-)
> If I open Geany via sudo, almost everything is broken
Don't do that. :) Quite unusual to run any X Windows program as root.
> if I prefix the Execute incantation in the Geany setup dialog with
> sudo, the terminal that opens says that it cannot find the executable.
It can't find sudo, or your program? Use /usr/bin/sudo? Specify the
path to your program? Do both, i.e. `/usr/bin/sudo
/home/terry/pi/blink'.
> Any ideas?
Debug with printf(3) to the terminal, and continue to use the shell.
Run your non-stopping program from the shell with one of
sudo strace ./blink
sudo ltrace ./blink
and see if the output, particularly strace's, gives a clue. If it
whizzes past too fast then Ctrl-C and work backwards from the end.
Cheers, Ralph.
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