udp: remove unused SIOCGIFINDEX ioctl
rename uuid_t to tvh_uuid_t
clock_gettime does not exist on OS X
darwin uses clang by default, enable microsoft proprietary anonimous structs
build: disable linuxdvb when compiled on OS X
save
osx: use if_nametoindex on Darwin instead of SIOCGIFINDEX
osx: signal handling
save