Re: [Caml-list] Using OCaml from C

[Tom Ridge <tom.j.ridge+caml@googlemail.com>]

Dear List,

Thank you for all the replies. At least I feel that I am not doing
something *too* stupid. I will try to follow Gerd's suggestion and
inspect the final cc command from "ocamlfind ocamlc", and
cut-and-paste the relevant parts into the makefile.

Thanks

On 10 September 2013 14:30, David Allsopp <dra-news@metastack.com> wrote:
> Stéphane Glondu wrote:
>> Le 10/09/2013 14:21, Tom Ridge a écrit :
>> > /home/tr61/.opam/4.00.1/lib/core/libcore_stubs.a(unix_stubs.o): In
>> > function `unix_clock_gettime':
>> > unix_stubs.c:(.text+0x2776): undefined reference to `clock_gettime'
>> >
>> > I had -lrt after -lpthread, but the error was still reported; when I
>> > moved -lrt to end of command line things seemed to work; why?
>
> <snip>
>
>> > My real question is: what command *should* I be using to compile my
>> > example? Or is the above more-or-less expected?
>>
>> 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.
>
>
> David
>
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