how do I integrate the pj-nat64.c and pj-nat64.h file in my objective c project

[shwetadodiya]

Hi , I checked with this steps https://stackoverflow.com/questions/43915256/pjsip-registration-to-ipv4-server-from-nat64-network-in-ios I had done :

1. Download the pj-nat64 source from above link.

2. Unzip the file and copy pj-nat64.c file paste into the pjproject (means pjsip source) (path is: pjsip/src/pjsua-lib)

3. Copy pj-nat64.h file paste into the pjproject (means pjsip source) (path is: pjsip/include/pjsua-lib)

4. Need to add the pj-nat64.o in the makefile of pjsip (Make file path is: pjsip/build) -- I am confused about this step. How should I add this into makefile in my objective C code.