ref: a71a4f52c8a96c1b5b9bfd271a57a91d7070e5d7 dir: /common/mp4v2/acconfig.h/
@BOTTOM@ #undef HAVE_IN_PORT_T #undef HAVE_SOCKLEN_T #undef HAVE_FPOS_T_POS #undef ARCH_X86 #undef HAVE_IPv6 #undef HAVE_ST_ADDRINFO