This is with pkgconfig-0.27: ~ % pkg-config --modversion dbus-glib-1 0.100 Which is the correct version of dbus-glib-1. Now this is with pkgconf-0.8.4: ~ % pkgconf --modversion dbus-glib-1 1.6.4 2.32.4 2.32.4 0.100 Which is the version of dbus (1st line), glib (2nd, 3rd line) and finally dbus-glib-1 (4th line). This didn't happend with pkgconf-0.8: ~ % pkgconf --modversion dbus-glib-1 0.100 So marking as blocker for stabilization bug 427680.
angelos tested against -9999 (and effectively 0.8.5 since right now, 0.8.5 == 9999) and the bug is fixed.