Gentoo's Bugzilla –
Attachment 319456 Details for
Bug 428374dev-texlive/texlive-basic-2012 (with dev-tex/luatex)- luatex: Symbol `kpse_def_inst' has different size in shared object, consider re-linking PANIC: unprotected error in call to Lua API (zlib library version does not match - header: 1.2.6, library: 1.2.7)