[xfs-masters] Re: [Patch 7/8] FS: Remove 'TOPDIR' from Makefiles

[Eric Sandeen <sandeen@xxxxxxxxxxx>]

WANG Cong wrote:
> TOPDIR is obsolete, use objtree instead.
> This patch removes TOPDIR from all fs/ Makefiles.

> diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
> index 49e3e7e..d1d3d49 100644
> --- a/fs/xfs/Makefile
> +++ b/fs/xfs/Makefile
> @@ -1 +1 @@
> -include $(TOPDIR)/fs/xfs/Makefile-linux-$(VERSION).$(PATCHLEVEL)
> +include $(objtree)/fs/xfs/Makefile-linux-$(VERSION).$(PATCHLEVEL)

FWIW $(TOPDIR) is already banished from the latest xfs build code:

http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/Makefile

and the patch is in -mm too via git:

http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.24-rc6/2.6.24-rc6-mm1/broken-out/git-xfs.patch

Thanks,

-Eric

p.s. what is $(objtree) exactly?  I don't see it mentioned in
Documentation/kbuild except as one line in an example... I thought
$(obj) and $(src) should be used outside of the core kbuild
infrastructure, and in this case wouldn't it be $(src) anyway?