[PATCH 2/2] Revert "CMake: don't install tablegen"

[Joerg Sonnenberger]

On Fri, Aug 30, 2013 at 11:47:40AM -0700, Reid Kleckner wrote:
> Please find a way to do this that doesn't install llvm-tblgen by default.
>  We don't actually want to distribute it to end users.

This is exactly the use case I was talking about. I think it makes
perfect sense to be able to use the Option library as user...

Joerg