Hi, I was wondering what is the purpose of using -ggdb3 and -O3 simultaneously for gcc? One is for debug and the other is for optimization. Is this to debug the optimized code? Can anyone point me to some reference explaining this well? Thanks! -- View this message in context: http://www.nabble.com/using--ggdb3-and--O3-simultaneously-tp22275813p22275813.html Sent from the gcc - Help mailing list archive at Nabble.com.