The symbol exists but is not exported (t vs T). Try adding DLLEXPORT in
front of the function declaration. On 0.4 it appears to have had a
Windows-only export declaration.
On Saturday, July 9, 2016, Sourabh Chadha <sourabh.cha...@gmail.com> wrote:
> I am new to Julia and have been trying to use ccall to call C functions in
> embedded mode but i am unable to even successfully run the example
> embedding.c that is in package. The example file define a
> function my_c_sqrt and then tries to call it using jl_eval_string("println(
> ccall( :my_c_sqrt, Float64, (Float64,), 2.0 ) )");. This doesnt work and if
> i trace the issue by printing errors i get ErrorException("ccall: could not
> find function my_c_sqrt").
>
> I have tried checking eveything. nm on the executble gives this.
> nm ../usr/bin/embedding | grep my
> 0000000000601d80 t __frame_dummy_init_array_entry
> 0000000000400f60 t frame_dummy
> 0000000000400f90 t my_c_sqrt
>
> so the symbol is available.
>
> I am running Red Hat Enterprise Linux Workstation release 7.0 (Maipo) nd
> hve compiled julia Version 0.4.6 from scratch.
>
> any help would be really appreciated
>
>
