Broken 21.02 rc3 imagebuilder [Was: Re: Should ubus be marked as target-specific "nonshared"? (broken 21.02 rc2 imagebuilder)]

[Hannu Nyman]

Petr Štetiar kirjoitti 2.7.2021 klo 16.11:
> Hannu Nyman <hannu.nyman at iki.fi> [2021-06-05 13:40:21]:
>
> Hi,
>
>> Based on forum discussion, we have currently a broken 21.02.0-rc2
>> imagebuilder, as libiwinfo can't find the correct libubus version.
> seems like there is broken 21.02.0-rc3 imagebuilder as well:
>
>   openwrt-imagebuilder-21.02.0-rc3-ipq40xx-generic.Linux-x86_64$ make image PROFILE=avm_fritzbox-7530 PACKAGES=luci-ssl-openssl
>   ...
>   Collected errors:
> ...
>
> It seems like that currently any package that depends on nonshared package
> needs to be treated as nonshared as well, otherwise such issues would happen.
>
> -- ynezz


My solution attempt aimed just to mitigate the "nonshared static packages 
depend on ABI revisioned shared packages" case, so that at least the 
nonshared package set would remain coherent in releases. iwinfo was one such 
package and apprently @jow- fixed that now separately (by changing it to shared).

Similar common packages are still e.g. mtd, block-mount and blockd, which are 
nonshared but depend on ABI revisioned shared packages like libubox, libubus 
etc., so they can be broken by version bumps. See analysis in 
https://lists.openwrt.org/pipermail/openwrt-devel/2021-June/035442.html

Regarding the generic case, the combination of ABI revisioning and 
shared/nonshared build difference (volatile/fixed) is the killer here. There 
is no real solution.

The easiest mitigation might be to backport changes into these key ABI 
revisioned shared packages in the release branches just shortly before next 
rc or dot releases, so that the imagebuilder remains broken only for a short 
time.