On Sep 27, 2005, at 12:34:55, Al Viro wrote:
*Hell*, no.
1) any use of cross-gcc is immediately b0rken
2) anything like building i386 on amd64 (native toolchain, -m32
in arguments) is b0rken
So s/gcc/$(SOME_MAKEFILE_VARIABLE)/g I was simplifying for the sake
of suggestion/example; adding in support for all of those is
nontrivial and best left to those who thoroughly understand the
kernel Makefile system (IE: Not me :-D).
3) way, way, *WAY* too much spew. gcc pre-defines shitloads of
stuff and some of that stuff very definitely should not be there
for sparse.
Why not? Some of that stuff may get used in kernel headers, which
sparse should definitely have defined. Besides, sparse is designed
to check C source code, which will be compiled with said GCC using
those preprocessing defines. Why should it use a different set of
defines?
IOW, it's not that simple. You need final CC, CFLAGS and CPPFLAGS
for that.
See responses to (1) and (2)
Moreover, your variant won't do at all - change .config and you
might need to rebuild that file on biarch platforms (parisc and
s390 at the very least; ppc/ppc64 are also moving in that direction).
We do far worse messes in per-arch Makefiles, and this seems
reasonably easy to put in an arch-generic makefile, unless there is
some significant complication you didn't mention.
Cheers,
Kyle Moffett
--
I have yet to see any problem, however complicated, which, when you
looked at it in the right way, did not become still more complicated.
-- Poul Anderson
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