b4n left a comment (geany/geany#4488)

Here are some thoughts from 
https://github.com/geany/geany/pull/4414#issuecomment-3652321692:

> > [@b4n]
>> [edit] or maybe the issue is that we build with a newer version than what we 
>> distribute? I'm not sure how all this works, but we seem to install them 
>> separately, which might lead to issues if the two versions get too far out 
>> of sync…
> 
> [@eht16]
> I think this might get a bit off topic here, feels like an issue on its own.
> 
> IIRC this was never planned to work like but rather happened. The following 
> is based on my memories from when I built Geany on Windows natively and also 
> wrote the cross build CI script - the native CI build might work a bit 
> different in detail:
> 
> For build time, the dependencies are installed via `pacman` within the MSYS2 
> environment and `pacman` takes care of dependency resolution. This is the 
> easy part.
> 
> For runtime, we cannot easily use the installed packages again as they were 
> installed into the MSYS2 filesystem tree.
> 
> I think this was the point when we introduced 
> `scripts/gtk-bundle-from-msys2.sh` in order to replicate the package 
> installation but into a seperate, clean filesystem tree which we can use to 
> create the bundle.
> 
> You are absolutely right, this might lead to inconsistencies of package 
> versions between build time and runtime. We might have been lucky in the 
> past. And now, with the old pinned Pango and Cairo packages, the problem 
> materialized.
> 
> In an ideal world, we would use exactly the same packages for bundle creation 
> and build time. A rather pragmatic idea: when we are installing the packages 
> for build time within MSYS2, we could write a list of the relevant packages 
> with their exact version to a file and at bundle creation time, we use this 
> list to replicate the package installation with the exact versions.
> 
> (Not completely nice but should be easier/faster to implement than a clean 
> solution.)

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