modules/sdpops: added sdp_with_transport_like() function
while doing it, i noticed that several modules use memmem or ser_memmem function. memmem is built in, but requires
#define _GNU_SOURCE
it is used by auth_identity module. nathelper, rtpengine, and rttproxy modules (and now also sdpops) as well as parser use ser_memmem and each defines it separately.
what is the preferred way to straighten out this mess? can we assume that kamailio code is non-portable and thus defining _GNU_SOURCE is acceptable. if not, what is the best place to put ser_memmem so that it is defined only once?
-- juha