I added #thread and I also tried adding a ";;" after all of the lines
starting with # .  Here is what my .ocamlinit looks like right now.

(* Added by OPAM. *)
let () =
  try Topdirs.dir_directory (Sys.getenv "OCAML_TOPLEVEL_PATH")
  with Not_found -> ()
;;

#use "topfind"
#camlp4o
#require "core.top"
#require "core.syntax"
#require "core_extended"
#require "async"
#thread
open Core.Std


The output in the terminal is:

        OCaml version 4.00.1

Findlib has been successfully loaded. Additional directives:
  #require "package";;      to load a package
  #list;;                   to list the available packages
  #camlp4o;;                to load camlp4 (standard syntax)
  #camlp4r;;                to load camlp4 (revised syntax)
  #predicates "p,q,...";;   to set these predicates
  Topfind.reset();;         to force that packages will be reloaded
  #thread;;                 to enable threads

/Users/caseybasichis/.opam/4.00.1/lib/ocaml/dynlink.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/ocaml/camlp4: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/ocaml/camlp4/camlp4o.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/ocaml/unix.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/ocaml/bigarray.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/bin_prot: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/bin_prot/bin_prot.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/variantslib: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/variantslib/variantslib.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/ocaml/nums.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/num-top: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/num-top/num_top.cma: loaded
Camlp4 Parsing version 4.00.1

/Users/caseybasichis/.opam/4.00.1/lib/num: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/sexplib: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/sexplib/sexplib.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/fieldslib: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/fieldslib/fieldslib.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/oUnit: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/oUnit/oUnit.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/pa_ounit: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/pa_ounit/pa_ounit_lib.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/res: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/res/res.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/core_kernel: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/core_kernel/core_kernel.cma: loaded
/Users/caseybasichis/.opam/4.00.1/lib/core: added to search path
/Users/caseybasichis/.opam/4.00.1/lib/core/core.cma: loaded
File ".ocamlinit", line 1:
Error: Reference to undefined global `Condition'

Thanks,
Casey




On Tue, Aug 20, 2013 at 3:15 PM, Leo White <lpw25@cam.ac.uk> wrote:

> > typing ocaml into the terminal yields:
> >
> >         OCaml version 4.00.1
> >
> > Findlib has been successfully loaded. Additional directives:
> >   #require "package";;      to load a package
> [...]
> > /Users/caseybasichis/.opam/4.00.1/lib/core/core.cma: loaded
> > File ".ocamlinit", line 1:
> > Error: Reference to undefined global `Condition'
>
> It looks like your .ocamlinit may be missing a "#thread" directive
> (required by Core).
>
> Regards,
>
> Leo
>



-- 
Casey James Basichis
Composer - Adventure Time - Cartoon Network
http://www.caseyjamesbasichis.com
caseybasichis@gmail.com
310.387.7540