cmake HAVE_LINUX_RTNETLINK_H examples

yanhua133/mediasoup-sfu-cpp deps/usrsctp/CMakeLists.txt :109 

add_definitions(-DHAVE_LINUX_RTNETLINK_H)

rbfx/rbfx Source/ThirdParty/libdatachannel/deps/usrsctp/CMakeLists.txt :105 

add_definitions(-DHAVE_LINUX_RTNETLINK_H)