Re: [Caml-list] Using OCaml from C

["Stéphane Glondu" <steph@glondu.net>]

Le 10/09/2013 15:30, David Allsopp a écrit :
>> Your calls to cp, ar and your use of -custom look suspicious. But it is
>> difficult to be more helpful without a concrete testcase.
> 
> They're exactly as in the manual and are correct for compiling with ocamlc for static linking with C code. The cp and ar calls are necessary to set-up the static library (which should use libcamlrun.a as a starting point) - see #19.8 (the example in question), #19.7.4, #19.7.5 and #19.1.3 in the manual.

Well, that doesn't make them more right.

With the example of the manual, the following works and is much saner:

  ocamlc -output-obj -o modcaml.o mod.ml
  ocamlc -c modwrap.c
  ar rcs mod.a modcaml.o modwrap.o
  cc -o prog main.c mod.a -L`ocamlc -where` -lcamlrun -lm -ldl -lcurses

Copying libcamlrun.a around and fiddling with it also works and avoids
-L`ocamlc -where` -lcamlrun but it is just insane, as insane as
embedding the C standard library and runtime into third-party static
libraries.


Cheers,

-- 
Stéphane