Runtime OS dependencies for prebuilds

[shyim]

Hey,

When extensions are not self-contained and require 3rd-party libraries the distrubution will be pretty hard, as some system level dependencies are needed to be installed.

My initial though was a list of packages possible to define inside composer.json by OS:

{
    "runtime": {
       "packages": {
          "ubuntu-26.04": ["XX"],
          "ubuntu-24.04": ["XX"]
       }
    }
}

Ideally the same could be used for build dependencies too, when there is no prebuild 👀 . All this is just brain storming 👀 . Right now when I am building an Extension i try to compile everything static

[asgrim]

The mechanism for this is already supported, just need to add relevant library support into PIE, and extension maintainer then needs to add the library requirements to composer.json.

Docs are here: https://github.com/php/pie/blob/1.5.x/docs%2Fextension-maintainers.md#system-library-dependencies