[OE-core] Is BBCLASSEXTEND in .bbappend supposed to work?

[Gary Thomas]

On 04/18/2011 05:34 AM, Koen Kooi wrote:
>
> Op 18 apr 2011, om 13:28 heeft Richard Purdie het volgende geschreven:
>
>> On Mon, 2011-04-18 at 12:55 +0200, Koen Kooi wrote:
>>> Martin did some Xorg cleanup in meta-oe today and we're seeing some strange behaviour.  The recipe in question:
>>>
>>> koen at dominion:/OE/tentacle/sources/meta-openembedded/meta-oe$ cat recipes-graphics/xorg-lib/libxrender_0.9.6.bbappend
>>> BBCLASSEXTEND = "native nativesdk"
>>> koen at dominion:/OE/tentacle/sources/meta-openembedded/meta-oe$
>>>
>>> Bitbake-layers tells me:
>>>
>>> INFO: libxrender_0.9.6.bb:
>>> INFO:   /OE/tentacle/sources/meta-openembedded/meta-oe/recipes-graphics/xorg-lib/libxrender_0.9.6.bbappend
>>>
>>> So the append is getting picked up, but bitbake gives me:
>>>
>>> ERROR: Nothing PROVIDES 'libxrender-native'
>>> NOTE: Runtime target 'libnss-mdns' is unbuildable, removing...
>>> Missing or unbuildable dependency chain was: ['libnss-mdns', 'avahi', 'gtk+', 'gtk+-native', 'libxrender-native']
>>>
>>> This is with HEAD of bitbake master.
>>
>> I did some experimentation here and this looks like bitbake-layers is
>> seeing the file but bitbake is not. If I touch the libxrender .bb file
>> and then run bitbake -DDD, I see the file mentioned in the logs:
>>
>> $ touch recipes-graphics/xorg-lib/libxrender_0.9.6.bb
>> $ bitbake libxrender-native -DDD | grep append
>> DEBUG: Appending .bbappend file /rphome/poky/meta/recipes-graphics/xorg-lib/libxrender_0.9.6.bbappend to /rphome/poky/meta/recipes-graphics/xorg-lib/libxrender_0.9.6.bb
>> DEBUG: BB /rphome/poky/meta/recipes-graphics/xorg-lib/libxrender_0.9.6.bbappend: handle(data, include)
>> DEBUG: LOAD /rphome/poky/meta/recipes-graphics/xorg-lib/libxrender_0.9.6.bbappend
>>
>> Can you confirm you're seeing that? Admittedly I just hacked a local
>> checkout and I'm not using meta-oe.
>
> I get:
>
> koen at dominion:/OE/tentacle/build$ touch ../sources/openembedded-core/meta/recipes-graphics/xorg-lib/libxrender_0.9.6.bb
> koen at dominion:/OE/tentacle/build$ bitbake libxrender-native -DDD | grep append
> DEBUG: Appending .bbappend file /OE/tentacle/sources/meta-openembedded/meta-oe/recipes-graphics/xorg-lib/libxrender_0.9.6.bbappend to /OE/tentacle/sources/openembedded-core/meta/recipes-graphics/xorg-lib/libxrender_0.9.6.bb
> DEBUG: BB /OE/tentacle/sources/meta-openembedded/meta-oe/recipes-graphics/xorg-lib/libxrender_0.9.6.bbappend: handle(data, include)
> DEBUG: LOAD /OE/tentacle/sources/meta-openembedded/meta-oe/recipes-graphics/xorg-lib/libxrender_0.9.6.bbappend
>
> It then chokes on renderproto-native, which gets fixes by touching the .bb. So it looks like bitbake has some caching issues.

I have seen exactly this behaviour.  Rebuilding the cache makes it work.  Is there an easy way
to force the cache to rebuild?  (I just touch a .conf file...)

>>
>> Do you need to add *.bbappend to BBFILES in layer.conf ?
>
> I have that already :)

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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