Hallo, I'm currently porting PJSIP for Blackfin with VDK. I think there is an end of #pragma pack() missing in pcap.c The struct pj_pcap_file should on my opinion not be packed. This leads to warnings because of potentially misaligned access: warning: taking the address of a misaligned field is not recommended status = pj_file_open(pool, path, PJ_O_RDONLY, &file->fd); Luckily it is not really misaligned. But I think pj_pcap_file is not needed to be packed. Best regards, Sandra