dictionary_copy_to_existing is in ext_dictionary.h but no symbol is public.
It has the following signature:
t_max_err dictionary_copy_to_existing(const t_dictionary *d, t_dictionary *dc)
When I try to use it:
Undefined symbols for architecture x86_64:
"_dictionary_copy_to_existing", referenced from:
___pyx_f_3api_10Dictionary_copy_to_existing in api.o
ld: symbol(s) not found for architecture x86_64