title: not able to install anything using opam
body: <p>I installed opam with homebrew on Mac OS X 10.10. But I can't install anything using opam. This is an example error output that get when I try to install ocamlfind:</p>
  
  <pre><code># opam-version 1.2.0
  # os           darwin
  # command      ./configure -bindir /Users/roger/.opam/system/bin -sitelib /Users/roger/.opam/system/lib -mandir /Users/roger/.opam/system/man -config /Users/roger/.opam/system/lib/findlib.conf -no-topfind
  # path         /Users/roger/.opam/system/build/ocamlfind.1.5.5
  # compiler     system (4.02.1)
  # exit-code    1
  # env-file     /Users/roger/.opam/system/build/ocamlfind.1.5.5/ocamlfind-91360-c61e7b.env
  # stdout-file  /Users/roger/.opam/system/build/ocamlfind.1.5.5/ocamlfind-91360-c61e7b.out
  # stderr-file  /Users/roger/.opam/system/build/ocamlfind.1.5.5/ocamlfind-91360-c61e7b.err
  ### stdout ###
  # ...[truncated]
  # Configuration for str written to site-lib-src/str/META
  # Configuration for threads written to site-lib-src/threads/META
  # Configuration for unix written to site-lib-src/unix/META
  # Configuration for stdlib written to site-lib-src/stdlib/META
  # Configuration for bigarray written to site-lib-src/bigarray/META
  # Configuration for camlp4 written to site-lib-src/camlp4/META
  # Configuration for ocamlbuild written to site-lib-src/ocamlbuild/META
  # Configuration for compiler-libs written to site-lib-src/compiler-libs/META
  # Configuration for bytes written to site-lib-src/bytes/META
  # Detecting compiler arguments: FAILED (see the file ocargs.log for details)
  ### stderr ###
  # ./configure: line 547: cd: src: No such file or directory
  </code></pre>