Re: [Caml-list] Is there some builtin function that flushes buffers on shutdown?

["Nicolás Ojeda Bär" <nicolas.ojeda.bar@lexifi.com>]

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Hi Christoph,

You are right, but that is because std_exit.cmx does not get linked by
default when using -output-obj, so
in fact you need to add it by hand:

  ocamlfind opt -package ANSITerminal -linkpkg -verbose -output-obj -o
test.object.o test.ml std_exit.ml

Cheers!
Nicolas



On Fri, Feb 3, 2017 at 11:15 AM, Christoph Höger <
christoph.hoeger@celeraone.com> wrote:

> That sounded totally reasonable, but is not the cause. When I think about
> it, it cannot work that way, since the linker should have complained about
> a missing symbol, right?
>
> On Fri, Feb 3, 2017 at 10:16 AM, Nicolás Ojeda Bär <
> nicolas.ojeda.bar@lexifi.com> wrote:
>
>> Hi Christoph,
>>
>> I can't check now, but it sounds like you forgot to link $(ocamlc
>> -where)/std_exit.o into your executable.
>>
>> Cheers!
>> Nicolas
>>
>>
>> On Fri, Feb 3, 2017 at 9:56 AM, Christoph Höger <
>> christoph.hoeger@celeraone.com> wrote:
>>
>>> Dear all,
>>>
>>> I managed to manually link and run an object file generated by ocamlopt.
>>> A small part seems to be missing, however:
>>>
>>> ➜  llvmlink ocamlfind opt -package ANSITerminal -linkpkg -verbose
>>> -output-obj -o test.object.o test.ml
>>>
>>> ➜  llvmlink clang -I$(ocamlc -where) -lm wrapper.c test.object.o -o
>>> wrapper ~/.opam/4.04.0/lib/ocaml/libunix.a -ldl
>>> ~/.opam/4.04.0/lib/ocaml/libasmrun.a /home/choeger/.opam/4.04.0/lib
>>> /ANSITerminal/libANSITerminal_stubs.a
>>>
>>> These commands produce an executable output, but the screen remains
>>> empty. This changes, when I manually flush the stdout buffer in the code (I
>>> obtain the desired results then).
>>>
>>> Find attached the test sources. When I uncomment the Printf.printf in
>>> test.ml, everything seems to work fine. But when I compile the test
>>> using ocamlopt solely, this is not necessary. It seems some buffers do not
>>> get flushed here. Does anyone know, why?
>>>
>>> regards,
>>>
>>> Christoph
>>>
>>>
>>
>

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