• Update bison to 2.4.1, see announcements for important changes: http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00000.html http://lists.gnu.org/archive/html/bug-bison/2008-12/msg00000.html
• Take over bison maintainership - as approved by portmgr (marcus)
• Add patches for ports to compile with new bison: Replace %{ .. %} with %code { .. } where required and accommodate stricter typing requirements

Thanks to pav for an exp-run on pointyhat

PR: ports/131640
Approved by: portmgr (pav)