raiblocks: init at 9.0 [WIP]

[jluttine]

NOTE: This is work in progress, not working yet. Hoping to get some help here..

Motivation for this change

Add raiblocks wallet:

• https://raiblocks.net/
• https://github.com/clemahieu/raiblocks

Build instructions: https://github.com/clemahieu/raiblocks/wiki/Build-Instructions#build-raiblocks

I get the following error in cofiguration phase:

-- The following REQUIRED packages have not been found:
 * Boost (required version >= 1.57.0)
-- Configuring incomplete, errors occurred!

Any ideas how to make CMake find Boost? Or maybe I'm doing this totally wrong altogether.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option build-use-sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

---

[jluttine]

Copy-paste from elsewhere: "just a wild guess but maybe you need pkgconfig? https://nixos.wiki/wiki/Packaging_Software#Configure_Scripts_that_are_using_pkgconfig . if not you will need to check how "boost" would be searched directly in the scripts. there is also https://github.com/clemahieu/raiblocks/blob/master/ci/ubuntu_prep.sh which sets up ubuntu, and it has "a lot" of auxiliary dependencies. not sure what else will be needed. i see at least autotools there"

EDIT: Adding pkgconfig to nativeBuildInputs didn't help.

[jluttine]

Closing in favor of #39295.