> This is what i am doing: > Added two new files A.cc A.h to my local directory > Added A.o to the Makefile > > And then in my local directory > make -f Makefile It's perfectly ok if you modify makefile but if in the future you happen to do configure again all your changes in makefile will be lost. To avoid that you have to change makefile.in (of course then do a configure) - Haobo