Paul Brook writes ("Re: [Qemu-devel] [PATCH] CPPFLAGS+= in Makefile.target"):
> On Friday 25 January 2008, Ian Jackson wrote:
> > What circumstances ? CPPFLAGS+= overrides (discards) values in the
> > environment as well as ones from the command line.
>
> [ demonstration ]
Oh, err, looks like I messed up in my own test. I see what you mean.
We don't want the top-level's CPPFLAGS turning up there.
Still, there ought to be a way to introduce extra compiler options
that doesn't involve duplicating the ones which are essential to find
qemu's own includes etc.
Ian.
