[fix, rfc] kbuild: O= with M= (Re: [PATCH -mm] replacement for broken kbuild-dont-put-temp-files-in-the-source-tree.patch)

[Oleg Verych <olecom@flower.upol.cz>]

On 2006-11-17, Oleg Verych wrote:
> On Tue, Oct 31, 2006 at 02:51:36PM +0100, olecom wrote:
> []
>> On Tue, Oct 31, 2006 at 02:14:16AM +0100, Horst Schirmeier wrote:
> []
>> > I'm not sure what you mean by $(objdir); I just got something to work
>> > which creates the /dev/null symlink in a (newly created if necessary)
>> > directory named
>> 
>> $(objtree) is a directory for all possible outputs of the build precess,
>> it's set up by `O=' or `KBUILD_OUTPUT', and this is *not* output for ready
>> external modules `$(M)'. Try to play with this, please.
>
> And for me, they are *not* working together:

It works with this:

Proposed-by: me

--- linux-2.6.20-rc5/scripts/Makefile.modpost.orig	2007-01-12 19:54:26.000000000 +0100
+++ linux-2.6.20-rc5/scripts/Makefile.modpost	2007-01-23 08:23:51.583426500 +0100
@@ -58,5 +58,5 @@
 #  Includes step 3,4
 quiet_cmd_modpost = MODPOST $(words $(filter-out vmlinux FORCE, $^)) modules
-      cmd_modpost = scripts/mod/modpost            \
+      cmd_modpost = $(objtree)/scripts/mod/modpost \
         $(if $(CONFIG_MODVERSIONS),-m)             \
 	$(if $(CONFIG_MODULE_SRCVERSION_ALL),-a,)  \
>> ____
> ____
____

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