To build, in addition to dependencies (loaded -dev.tcz where applicable), the following extensions were loaded:
curl-dev.tcz
dbus.tcz
dbus-glib-dev.tcz
gdk-pixbuf2-dev.tcz
glib2-dev.tcz
glu-dev.tcz
gob2.tcz (from TC4.x repo)
gtk2-dev.tcz
intltool.tcz
libtool-dev.tcz
libunique-dev.tcz
vala-dev.tcz

Notes:
split out files into gmpc, gmpc-dev, gmpc-doc and gmpc-locale