[yocto] version problems about SDK

[Zhang, Jessica]

Tian, Kevin wrote:
>> From: Ke, Liping
>> Sent: Monday, December 13, 2010 2:53 PM
>> 
>> Hi, Jessica & Josh
>> 
>> When we are trying to run installer script on lianhao's x86_64
>> machine, we found if the images are build in two days, according to
>> current version naming convention, some of the packages will be
>> installed to /opt/poky/0.9+snapshot-20101210, some will be to
>> /opt/poky/0.9+snapshot-20101210. 
>> It will cause problem since we need to know the exact version number
>> before installing and searching some files (environment script file,
>> etc). And the same releases of packages belong to different version
>> (just the build date is not in the same day) seems very strange and
>> hard to handle for us?  
>> 
> 
> I think Josh has laid down the base for multiple version SDK support.
> The only problem is: 
> 
> SDKPATH = "/opt/${DISTRO}/${DISTRO_VERSION}"
> 
> which obviously is not what we want. We need a similar variable like
> SDK_VERSION, which is incremented only when SDK team thinks there's a
> need for a new version release or 
> else it keeps same in the life cycle of current version.
> 
> Liping, could you try to come up a new variable for your purpose?

As Kevin mentioned, can we derive SDK_VERSION from DISTRO_VERSION so only
contains 0.9?
> 
> Thanks
> Kevin
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