"$<" is a make automatic variable - see http://www.gnu.org/software/make/manual/html_node/Automatic-Variables.html#Automatic-Variables. I don't know what the "-+" switch is - I couldn't find one in the gcc man page. Are you sure you don't mean "$+"? That would be another make variable. John G On Thu, Aug 4, 2011 at 6:45 AM, manaankit2 <ankit.anand1@xxxxxxxxx> wrote: > > Hello, > > Can some one please explain to me what are these options in it. > > gcc -c -+ $< -m64 $(CCFLAGS) > > I understand -c, -m64 and $CCFLAGS but i am not able to understand the use > of -+ and $<. > > Thanks for the help > -- > View this message in context: http://old.nabble.com/GCC-Options-tp32191782p32191782.html > Sent from the gcc - Help mailing list archive at Nabble.com. > >