[Buildroot] [PATCH v4 1/1] Added linux drivers backports project

[Arnout Vandecappelle <arnout@mind.be>]

On 19/04/15 19:03, Thomas Petazzoni wrote:
> Dear Yann E. MORIN,
> 
> On Sun, 19 Apr 2015 18:28:39 +0200, Yann E. MORIN wrote:
> 
>> Well, I would not be very happy with that, since that would make the
>> following use-case a real pain:
>>
>>     $ make foo_defconfig
>>     $ make linux-menuconfig
>>
>> Currently, all it needs is the linux kernel to be extracted and patched,
>> and none of its depedencies to be built. Otherwise, it would require the
>> toolchain to be built, plus a sh.tload of other stuff (lzo, for one, and
>> all its own dependencies).
> 
> We could remove the mandatory host-lzo dependency from the linux
> package, by adding an option for that. Remember the recent patches also
> adding host-xz to the dependencies of linux, which I rejected?
> 
> This would leave host-kmod as the only dependency of the linux package
> I believe. But well host-kmod as AUTORECONF = YES, so it pulls a whole
> bunch of crap.

 As mentioned before, it pulls in the toolchain as well. That's a lot worse than
host-lzo and host-xz - even extracting an external toolchain takes longer than
host-xz (at least for me).


 However, we can add the dependency specifically for linux-backports. There is
something to be said for the reasoning that usually/sometimes you don't need the
dependencies to be present, so doing it per package sounds OK.

 So in this case, adding

$(LINUX_BACKPORTS_KCONFIG_FILE): linux

to linux-backports.mk should be sufficient.


 Regards,
 Arnout

-- 
Arnout Vandecappelle                          arnout at mind be
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