Re: [Caml-list] Error When Linking Against SDSL C++ Library

[Reuben Rowe <R.N.S.Rowe@kent.ac.uk>]

Hi,

I have solved this now - I did not include the CAML header files as 
extern "C".

Thanks,

Reuben


On 10/07/17 17:02, Reuben Rowe wrote:
> Hi,
>
> I am trying to link some OCaml code against the SDSL C++ library, but 
> I am getting a strange error.
>
> It seems that a reference in being generated to the caml_flush() 
> function, but in the standard namespace (index_interface.o is my 
> wrapper to expose the library to my OCaml code):
>
> ../index_interface.o: In function `sdsl::int_vector_buffer<(unsigned 
> char)8>::write_block()':
> /usr/local/include/sdsl/int_vector_buffer.hpp:89: undefined reference 
> to `std::ostream::caml_flush()'
> ../index_interface.o: In function `sdsl::int_vector_buffer<(unsigned 
> char)0>::write_block()':
> /usr/local/include/sdsl/int_vector_buffer.hpp:89: undefined reference 
> to `std::ostream::caml_flush()'
> collect2: error: ld returned 1 exit status
>
> I am guessing this is not where it should be looking for caml_flush!?
>
> The SDSL int_vector_buffer class on the line in question is just 
> calling the flush() method on an object with a type that inherits from 
> std::ostream.
>
> Does anyone have an idea of why this might be happening?
>
> Thanks,
>
> Reuben
>