I generally utilize LLVM/clang from EPEL.  If you need a newer version 
than is published there, you may be able to get some forward progress by 
getting the EPEL sourcerpm to build first.

Pat

On 09/06/2015 10:34 AM, Keith Smith wrote:
> I'm trying to build LLVM & Clang from sources on SL7.
>
> I have installed ocaml, but I still get the following two errors when
> running ../llvm/configure
>
>
> configure: WARNING: --enable-bindings=ocaml specified, but ctypes is
> not installed
> configure: WARNING: --enable-bindings=ocaml specified, but OUnit 2 is
> not installed. Tests will not run
>
> I can't seem to find anything on how to correct these errors.
>
> One recommendation for the 'types' error was to run opam, but opam is
> not in the SL7 or EL distros.
>
> I can't find anything on OUnit 2.
>
> Thank you for your assistance.
>
> I will be posting to the LLVM mailing list as well.
>
> Keith Smith

-- 
Pat Riehecky
Scientific Linux developer

Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org