!=app-text/texlive-core-2007*
>=dev-texlive/texlive-latexextra-2010
>=app-text/texlive-core-2010[xetex]
>=dev-texlive/texlive-genericrecommended-2010
dev-texlive/texlive-mathscience
!<dev-texlive/texlive-mathextra-2012