Since version 1.4, workrave need ">dev-cpp/libgnomeuimm-2.0" in order to compile (and even GNOME I think). Sadly, the ebuild doesn't contain this dependancy...
to the PKG_CONFIG_PATH environment variable No package 'gnet-2.0' found configure: error: Library requirements (gnet-2.0) not met; consider adjusting the PKG_CONFIG _PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can f ind them. !!! ERROR: app-misc/workrave-1.4.0 failed. !!! Function econf, Line 324, Exitcode 1 !!! econf failed Emerging gnet-1.1.9 does not fixes this problem. Emerging the (masked) gnet-2.0.4 does. When emerging workrave 1.4.0, gnet-2.0.4 must therefore be listed as a dependency for workrave.
libgnomeuimm-2.0 is covered by the dependency on >=dev-cpp/libgnomeuimm-1.3 (a qpkg -l libgnomeuimm will show you the includes). i will investigate the gnet dependency though.
thanks very much for reporting, this is fixed in portage now