pkg-config --cflags gtk+ works.. IIRC, the configure
script was
complaining about not being able to find gtk.pc, but the file is
actually gtk+.pc (my PKG_CONFIG_PATH was set correctly..)
oh dear, i seem to have some gnome-config nonsense that allowed "gtk"
to work. fixed in my source.
Seems to work for every other project out there...
I'm sure you have
which c++ projects are you referring to?