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

[Richard Purdie]

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.

Do you need to add *.bbappend to BBFILES in layer.conf ?

Cheers,

Richard