[yocto] version problems about SDK

[Tian, Kevin]

>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?

Thanks
Kevin