[Teaching] opam installation problem

[Anil Madhavapeddy]

On 8 Feb 2015, at 20:47, Robert Muller <robert.muller2 at gmail.com> wrote:
> 
> # clang: error: unknown argument: '-fno-defer-pop'
> 
This is the key error, as the base C compiler changed in MacOS X 10.10, but you haven't reinstalled OCaml (which thinks you still have the old compiler). Do "brew reinstall ocaml" (or upgrade, or whatever it is) to get a new installation, and you should be set.  You should generally do this when you upgrade your OSX or you'll have problems with other Homebrew packages too.

-anil
    
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