Hm, I just read part of this discussion.
Apparently pkg-config is a very popular tool for
finding dependencies etc. Also it seems to be used
by plenty of libraries and people, although I never encountered
it in practice. For me a .pc is probably a mystery.
So before forming an opinion on pkg-connfig integration with
gnustep-make I would like to read up a little on pkg-config.
However the only thing I quickly found was a wiki page:
http://pkgconfig.freedesktop.org/wiki
And beside a link to download section and a list of supportd platforms
there seems to be no documentation for pkg-config at all.
Obviously that is because I do not look in the right place.
Another thing that caught my eye was the dependency on glib,
I have had some bad experiences with glib on windows.
So next I tried to download pkg-config version 0.21 and compile it (on
MS Windows). Of course that failed because I hadn't installed glib. So
I gave up. (I tried once to get glib compiled on windows and it
wasn't a pleasant experience.)
Moral of the story, if someone want to add pkg-config, better make
it a smooth experience. I for one don't want to spend a lot of time
installing another tool with intricate dependencies just to be able
to compile my own application.