app-text/libodfgen-0.0.4 depends on unslotted versions of app-text/libwpd and app-text/libwpg. This effectively pulls in app-text/libwpd:0.10 and app-text/libwpg:0.3, which libodfgen actually depends on the 0.9 and 0.2 slots, respectively. $ grep 'libwp.' libodfgen-0.0.4/configure.ac libwpd-0.9 libwpg-0.2
Fixed, thanks.