[pkg-uWSGI-devel] Bug#962186: uwsgi-plugin-php: CI fails with SIG_SEGV in bullseye

[Ondřej Surý]

Hi Alex,

you can depend on libphp-embed and then prepare the substvars like this:

echo "libphp-embed:Depends=libphp$(phpquery -V | head -1)-embed“ > debian/uwsgi-plugin-php.substvars

and then in debian/control you would use

Depends: ${libphp-embed:Depends}

instead of

Depends: libphp-embed

Alternatively

You can of course walk through the full list returned by phpquery -V and build a separate version
of the plugin for each available PHP version, but you would still have to prepare the substvars.

Cheers,
Ondrej
--
Ondřej Surý
ondrej at sury.org



> On 5 Jun 2020, at 16:02, Alexandre Rossi <niol at zincube.net> wrote:
> 
>>> I do not have much experience with shared object libraries, but as
>>> libphp7.3.so and libphp7.4.so declare the same soname libphp7.so, I could
>>> not find a way for uwsgi-plugin-php to explicitely reference libphp7.4.so :
>>> passing -lphp7.4 to the linker still goes back to linking to libphp7.so .
>> 
>> Don't we already do that by depending on PHP ABI?
>> 
>> If phpapi-20190902 is provided by multiple binary incompatible package
>> releases, then it seems to me that there is a bug in PHP packaging!
>> 
>> If you agree (i.e. if I haven't again misunderstood the issue) then I
>> think this bug should be reassigned to src:php7.4 as we already follow
>> their mechanism for locking in on a specific ABI.
> 
> I agree:
>   - uwsgi-plugin-php depends on libphp-embed, phpapi-20190902
>   - in bullseye, libphp-embed pulls libphp7.3-embed and phpapi-20190902
>     pulls php7.4-cli
>   - libphp7.so point to libphp7.3.so
>   - uwsgi-plugin-php (built against 7.4) segfaults...
> 
> I could not find any way to express that uwsgi-plugin-php depends
> on libphp7.4.so and not libphp7.3-embed, other than depending on
> libphp7.4-embed explicitely.
> 
> What do the php folks think?
> 
> Alex
> 

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