Hi, I want to build the whole gcc with "-gdwarf-2 -g3" and without any optimization, so that I can debug gcc and see all the macros. I'm not familiar with configure and make, so I tried to change all the CFLAGS and others flags to "-gdwarf-2 -g3" in all the related files (configure, configure.in, Makefile, Makefile.in, and Makefile.tpl). I even changed the src/gcc/configure, src/gcc/Makefile.in and other files. Basically, as long as I see something like "-g -O2", I change it to "-gdwarf-2 -g3". And I configure it with # ./configure --with-dwarf2 # make But when it's compiling, I still see the -O2 optimization. And I tried # ./configure --with-dwarf2 # make CFLAGS='-gdwarf-2 -g3' LIBCFLAGS='-gdwarf-2 -g3' BOOT_CFLAGS='-gdwarf-2 -g3' It's still the same. I can see the -O2 optimization. When I debug cc1, I cannot see the macros. (I applied the patch to gdb so that it is able to see macros) How should I do to compile gcc with no optimization and "-gdwarf-2 -g3"? Thanks. Regards, Timothy
