This problem is not related to that patch so I would like to discuss here.

Maxime Devos <maximedevos@telenet.be> writes:

> [[PGP Signed Part:Undecided]]
> Zhu Zihao schreef op za 12-03-2022 om 10:38 [+0800]:
>> > What if a program uses both 'pango' and gtk?  Then IIUC, it would
>> > simultanuously use pango and pango-next in the same process, which
>> can
>> > easily cause problems (see e.g. the bug report about segfaults
>> > involving multiple libcairos).

Can you show me the link of the libcairo conflict example you said?

I don't know what cause the segfaults in your example. C linker will
embed the full path of the library into the RUNPATH, unless
LD_LIBRARY_PATH is set, C library will use the dependencies they found in
link time.

>> 
>> i've asked in https://debbugs.gnu.org/cgi/bugreport.cgi?bug=44327 and
>> suggest to introduce priority mechanism like Nix. But Ludovic Courtès
>> doesn't accept my suggestion
>
> How could a priority mechanism solve the segfaults?

'priority' will let user to specify which package can override other
packages, if some of their contents overlapped with each other. Now Guix
will silently choose one. 


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Zihao