Gentoo's Bugzilla –
Attachment 345072 Details for
Bug 465344app-text/texlive-core-2012-r1 with gcc-4.8.0 and graphite optimizations - /bin/sh .../work/texlive-20120701-source/texk/web2c/web2c/convert tangle syntax error: Last token = 44 (,), error buffer = `,', last id = `TANGLE' (not in symbol table).