Use C99 on all platforms.
Use C99 on all platforms.

CoolmanCZ/usrsctp,weinrank/usrsctp,faithfracture/usrsctp,faithfracture/usrsctp,faithfracture/usrsctp,ossy-szeged/usrsctp,saghul/usrsctp,bebo/usrsctp,sctplab/usrsctp,JlnWntr/usrsctp,sctplab/usrsctp,bebo/usrsctp,CoolmanCZ/usrsctp,CoolmanCZ/usrsctp,ossy-szeged/usrsctp,saghul/usrsctp,weinrank/usrsctp,JlnWntr/usrsctp,weinrank/usrsctp,JlnWntr/usrsctp,CoolmanCZ/usrsctp,sctplab/usrsctp