Thanks for the reply. -Wl,--export-dynamic was already defined.
After a lot of back and forth if i removed
-Wl,--no-whole-archive
/nfs/punlinuxvault1/fcdata5/data9/schadha/julia-0.4.6/usr/lib/libunwind-generic.a
/nfs/punlinuxvault1/fcdata5/data9/schadha/julia-0.4.6/usr/lib/libunwind.a
and added -Wl,-E it worked. Cant figure out what i was doing wrong though
and why the default settings dont work.
Anyway thank you for helping me with this.
On Saturday, 9 July 2016 11:34:13 UTC+5:30, Sourabh Chadha 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
>
>
