Select 32-bit TOC model if compiling with -for-pack
Select 32-bit TOC model if compiling with -for-pack

ocamlopt -pack can create large .o files that can easily overflow the 16-bit TOC model.


git-svn-id: 04121d42f7b129322fe3db9685f638baf9e39c08@16342 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

gerdstolpmann/ocaml,yunxing/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,eliberis/ocaml,eliberis/ocaml,eliberis/ocaml,msprotz/ocaml,msprotz/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,yunxing/ocaml,eliberis/ocaml,yunxing/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,eliberis/ocaml,msprotz/ocaml,msprotz/ocaml