Package request: mono
http://download.mono-project.com/sources/mono/
Please don’t forget to enable LLVM support.
We could ship the LLVM diff as patch? http://www.mono-project.com/Mono:Runtime:Documentation:LLVM\#The\_LLVM\_Mono\_Branch
(from redmine: issue id 2254, created on 2013-09-14, closed on 2015-12-19)