TeXLive 2010 includes Type1, TrueType, and OpenType versions of classic TeX fonts such that XeTeX can access these classic fonts through fontconfig/freetype. Per TeXLive documentation, a file will be generated at TEXMFSYSVAR/fonts/conf/texlive-fontconfig.conf that should be copied into /etc/fonts/conf.d, but since Gentoo is not using tlpkg, this file is not generated. The file in question is generated by /tlpkg/tlpostcode/xetex.pl. It depends on TeXLive perl classes not installed in Gentoo, but given that Portage always installs TeXLive into the same directory, the script can be skipped in favor of a pre-generated file installed in /etc/fonts/conf.avail for `eselect fontconfig' usage.
Created attachment 251983 [details] fontconfig configuration file for TeXLive fonts This file contains the exact list of directories generated by tlpkg/tlpostcode/xetex.pl: opentype, truetype, and type1.
Created attachment 251985 [details, diff] texlive-xetex-2010-r1.ebuild.patch patched ebuild to install fontconfig file using font.eclass
added, thanks