[flac-dev] [PATCH] configure.ac: don't try to unset -g from CFLAGS

[Jan Stary]

On Nov 30 10:04:18, mle+la at mega-nerd.com wrote:
> Jan Stary wrote:
> 
> > >  if test "x$debug" = xtrue; then
> > >  	CPPFLAGS="-DDEBUG $CPPFLAGS"
> > > -	CFLAGS=$(echo "$CFLAGS" | sed 's/-g//')
> > > -	CFLAGS="-g $CFLAGS"
> > > +	CFLAGS=$(echo "-g $CFLAGS")
> > 
> > Just zap the sed line, and leave
> > 
> > 	CFLAGS="-g $CFLAGS"
> > 
> > there; no need to echo anything.
> 
> Thats what I did.
>  
> > >  else
> > >  	CPPFLAGS="-DNDEBUG $CPPFLAGS"
> > > -	CFLAGS=$(echo "$CFLAGS" | sed 's/-O2//;s/-g//')
> > > +	CFLAGS=$(echo "$CFLAGS" | sed 's/-O2//')
> > >  	CFLAGS="-O3 -funroll-loops $CFLAGS"
> > 
> > Why is a $debug setting messing with optimization flags at all?
> 
> Because -O0 makes it easier to follow the logic when actually running it
> in a debugger.

Yes, that's for DEBUG.
But why does it strip -O2 and add -O3 with NDEBUG?