Re: [gentoo-embedded] Any showstoppers with uclibc-ng-1.0.22 upgrade?

[Anthony G. Basile]

On 2/18/17 9:22 PM, Walter Dnes wrote:
> On Sat, Feb 18, 2017 at 09:59:56AM -0500, Anthony G. Basile wrote
>
>> You need to be careful because obstack support has been dropped in
>> uclibc-ng-1.0.22.  This means that if you directly upgrade to 1.0.22
>> without first rebuilding your systems (including the toolchain) without
>> obstack support, you will have a severely broken system.  The news item
>> specifies the steps by which you can rebuild @world without depending on
>> uclibc-ng to provide obstack, and then upgrading uclibc-ng.
>>
>> I've still got things masked because I'm giving people some time.  I'm
>> going to stabilize 1.0.20 today-ish and then 1.0.22 later this month.
>   OK, I see.  You didn't want people on unstable to break their systems.
> Some ideas for sanity checking before you go ahead with 1.0.22.  Can an
> ebuild script execute system commands?  Possibilities...
>
> * if =sys-libs/uclibc-ng-1.0.20 is not installed and running, have the
>   1.0.22 ebuild die, and point to https://www.gentoo.org/support/news-items/2017-02-10-upgrade-to-sys-libs_uclibc-ng-1.0.22.html
>   If they tried upgrading this way, they may have missed the news item
>   and purged it.
>
> * If "find /usr/include/ -name obstack.h" succeeds, die and point to
>   https://www.gentoo.org/support/news-items/2017-02-10-upgrade-to-sys-libs_uclibc-ng-1.0.22.html

I might add this, eerror() and die in pkg_preinst().  Its a safeguard in
case someone is being casual, but this is a complex upgrade and its not
a good idea to automate too much because of differences on people's
systems.  Don't forget, uclibc is configurable, so people might already
have systems with obstack off.

>
> * If /usr/include/bits/uClibc_config.h has the wrong value for
>   __UCLIBC_HAS_OBSTACK__ die with error and point to
>   https://www.gentoo.org/support/news-items/2017-02-10-upgrade-to-sys-libs_uclibc-ng-1.0.22.html
>
>   I followed the instructions, finished the basic install, and it boots.
> Now to install X and some apps.
>


-- 
Anthony G. Basile, Ph.D.
Gentoo Linux Developer [Hardened]
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