This is the mail archive of the
gcc-help@gcc.gnu.org
mailing list for the GCC project.
Re: Build compiler for maximum debugging (-g -O0)
Thanks for clarifying. That did the trick.
Oliver
On Sunday 16 December 2007 00:59, Brian Dessent wrote:
> Oliver Kellogg wrote:
> > > If you wish to use non-default GCC flags when compiling the stage2 and
> > > stage3 compilers, set BOOT_CFLAGS on the command line when doing
> > > `make'.
> >
> > Using bash as my shell, I tried like this:
> > $ export BOOT_CFLAGS="-g"
> > $ make
>
> That's not what the above is telling you to do. There's a difference
> between setting a variable in the environment and overriding it on the
> make command line. In particular, settings in the environment do not
> override variable assignments in the Makefile (unless you use -e), but
> overrides on the make command invocation do.
>
> > What is the correct way to get the installed compiler compiled with -g
> > -O0 for fullest possible debugging ?
>
> I think you want
>
> make BOOT_CFLAGS="-g"
>
> Brian