Problem building a package using cmake depending on proc / procps in flake

Help
1

I’m trying to package moonbuddy-deck https://github.com/FrogTheFrog/moondeck-buddy in a flake, but am running into an issue where

       > CMake Error at src/lib/os/linux/CMakeLists.txt:13 (find_library):
       >   Could not find PROCPS_LIBRARY using the following names: proc, procps

I’ve tried pkgs.procps, pkgs.procs, pkgs.unixutils.procps, but none of them work. I’ve seen procps-ng in nixpkgs but can’t figure out how to use it as a nativebuildinput. My flake is the following:

{
  description = "moondeck-buddy";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.11";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
      in {
        packages = rec {
          default = moondeck-buddy;
          moondeck-buddy = pkgs.multiStdenv.mkDerivation {
            pname = "moondeck-buddy";
            version = "main";

            src = pkgs.fetchFromGitHub {
              owner = "FrogTheFrog";
              repo = "moondeck-buddy";
              rev = "main";
              sha256 = "/cVEBpXVIdgKZ9yonwUDayii0T/X04PmLhTH/2S2cFc=";
            };

            nativeBuildInputs = [
              pkgs.cmake
              pkgs.qt6.full
              pkgs.xorg.libX11
              pkgs.procps
              pkgs.procs
              pkgs.unixtools.procps
            ];
          };
        };
      }
    );
}

and the last 25 lines of the build look like:

       > -- Found WrapAtomic: TRUE
       > -- Found OpenGL: /nix/store/4v8zscynk625j9nrcf40cxhgcc1biq09-qt-full-6.8.0/lib/libOpenGL.so
       > -- Found WrapOpenGL: TRUE
       > -- Could NOT find XKB (missing: XKB_LIBRARY XKB_INCLUDE_DIR) (Required is at least version "0.5.0")
       > -- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR)
       > -- Could NOT find XKB (missing: XKB_LIBRARY XKB_INCLUDE_DIR) (Required is at least version "0.5.0")
       > -- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR)
       > -- Could NOT find XKB (missing: XKB_LIBRARY XKB_INCLUDE_DIR) (Required is at least version "0.5.0")
       > -- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR)
       > -- Found X11: /nix/store/c551bwv9dafz0rcqj7jcrv7kji1y9abj-xorgproto-2024.1/include
       > -- Looking for XOpenDisplay in /nix/store/ikjw6a952jd9wn5k06mkj710xzabssr0-libX11-1.8.10/lib/libX11.so
       > -- Looking for XOpenDisplay in /nix/store/ikjw6a952jd9wn5k06mkj710xzabssr0-libX11-1.8.10/lib/libX11.so - found
       > -- Looking for gethostbyname
       > -- Looking for gethostbyname - found
       > -- Looking for connect
       > -- Looking for connect - found
       > -- Looking for remove
       > -- Looking for remove - found
       > -- Looking for shmat
       > -- Looking for shmat - found
       > CMake Error at src/lib/os/linux/CMakeLists.txt:13 (find_library):
       >   Could not find PROCPS_LIBRARY using the following names: proc, procps
       >
       > 
       > -- Configuring incomplete, errors occurred!

Any help would be greatly appreciated!

2

Adding

# Explicitly set library paths if needed
        cmakeFlags = [
          "-DPROCPS_LIBRARY=${pkgs.procps}/lib"
          "-DPROCPS_INCLUDE_DIR=${pkgs.procps}/include"
        ];

seems to get me past the error.

3

Now I’m stuck on

       > CMake Error at src/lib/os/linux/CMakeLists.txt:28 (target_link_libraries):
       >   Target "osspecificlib" links to:
       >
       >     X11::Xrandr
       >
       >   but the target was not found.  Possible reasons include:
       >
       >     * There is a typo in the target name.
       >     * A find_package call is missing for an IMPORTED target.
       >     * An ALIAS target is missing.

which I guess I’ll get to bang my head against for another two days.

4

xrandr isn’t from xrandr, its from libXrandr. That gets it to start compiling, but now I’m back to procps not having an actual library and failing at #include <proc/readproc.h>

5

So I was on the complete wrong path with building this as I need to use Ninja and cl it seems. That’s running into it’s own host of roadblocks so I’ll probably just call it quits as I don’t have enough time to dedicate to this fight.
As a workaround I tried appimage-run agains the prebuilt appimage, but of course that ran into its own host of issues.
Either way, it’s going to get off topic from this thread.