Re: [kbuild-devel] Re: State of the new config & build system

Christoph Hellwig
2001-12-30T12:06:13Z

On Sat, Dec 29, 2001 at 12:44:06AM +0100, Kai Germaschewski wrote:
> But yes, it seems possible to replace the -MD dependency file, which
> depends on a specific config, with a generic dependency file, which knows
> about our #ifdef CONFIG_XXX and translates them to the corresponding
> ifeq(CONFIG_,) Makefile syntax. It'd make an interesting project, but it
> effectively means re-implementing a C preprocessor.

Michael already wrote such a program. It's part of the dancing
makefiles patch, which btw is a kernel build system that is not only
correct but also faster than the old one..

It's scripts/mk/fix_dep.c in a kernel tree with the following patch
applied:

ftp://ftp.kernel.org/pub/linux/kernel/projects/kbuild/dancing-makefiles-2.4.0-test10.bz2