MFH: r420045

• Stage II. FreeBSD 9.x branch need a bit more love to deal with c++11-aware code for Jit/LLVM bytecode engine [1]
• Disable Jit engine by default for package building [2]

Reported by: pi [1]
Discussed with: garga [2]
Approved by: garga (maintainer)

Approved by: ports-secteam (blanket)