hi > My question is, I don't know what the author is saying. Where did main.o = and=20 > aux.o come from? What is CC=3Dgcc, and why is it shown like this? Finally= , what=20 > is make, what is makefile, and what's the difference between the two? I h= ave=20 > a commercial C/C++ package (Watcom) which does the make stuff via a butto= n.=20 > If I do a makefile on this (which runs on a Windows platform) will result= ing=20 > program work on a Linux platform?=20 man make cheers k.v.n