build-qemu: libz, libjpg, libpixman
build-qemu: libz, libjpg, libpixman

- no more pixman submodule
- use pkg-config-dbg everywhere
- use PKG_CONFIG_LIBDIR everywhere

gnuarmeclipse/plug-ins,gnuarmeclipse/plug-ins,gnuarmeclipse/plug-ins,gnuarmeclipse/plug-ins,gnuarmeclipse/plug-ins