Hi all, I am compiling pjsip 1.3 for iPhone OS 2.2.1 from http://code.google.com/p/siphon/wiki/CompilationForiPhoneOS2_X. I have created a source file(crypt.c and crypt.h) for the encryption and decryption and want to added into the pjsip project. How do I add my newly created source file into the pjsip project for the iPhone compilation, since it gives the error while make. Undefined symbols: "_sip_encryption", referenced from: _udp_on_read_complete in libpjsip-arm-apple-darwin9.a(sip_transport_udp.o) _udp_send_msg in libpjsip-arm-apple-darwin9.a(sip_transport_udp.o) "_decrypt", referenced from: _udp_on_read_complete in libpjsip-arm-apple-darwin9.a(sip_transport_udp.o) "_encrypt", referenced from: _udp_send_msg in libpjsip-arm-apple-darwin9.a(sip_transport_udp.o) ld: symbol(s) not found collect2: ld returned 1 exit status make[2]: *** [../bin/pjsip-test-arm-apple-darwin9] Error 1 make[1]: *** [pjsip-test] Error 2 make: *** [all] Error 1 The functions that I have added in my source file is called in sip_transport_udp, I suppose this is the reason why it gives error in sip_transport_udp.o. Regards, Elangbam Johnson -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100120/e4f9bca1/attachment.html>