raylib with DRM backend

Signed-off-by: Slendi <slendi@socopon.com>

Cargo.lock

@@ -427,6 +427,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "midly",
+ "pkg-config",
  "raylib",
  "serialport",
 ]

Cargo.toml

@@ -7,4 +7,7 @@ edition = "2024"
 anyhow = "1.0.102"
 midly = "0.5.3"
 serialport = "4.9.0"
-raylib = { version = "5.5.1", default-features = false, features = ["wayland"] }
+raylib = { version = "5.5.1", features = ["nobuild"] }
+
+[build-dependencies]
+pkg-config = "0.3"

build.rs

@@ -0,0 +1,6 @@
+fn main() {
+    pkg_config::Config::new()
+        .atleast_version("5.0")
+        .probe("raylib")
+        .expect("failed to find system raylib via pkg-config");
+}

flake.nix

@@ -51,29 +51,42 @@
 
         isDarwin = pkgs.stdenv.isDarwin;
 
-        x11Libs = with pkgs; [
-          wayland
-          #libX11
-          #libXcursor
-          #libXi
-          #libXrandr
-          libxkbcommon
-        ];
+        raylibDrm = pkgs.raylib.overrideAttrs (_old: {
+          cmakeFlags = [
+            "-DCUSTOMIZE_BUILD=ON"
+            "-DBUILD_EXAMPLES=OFF"
+            "-DPLATFORM=DRM"
+            "-DINCLUDE_EVERYTHING=ON"
+            "-DBUILD_SHARED_LIBS=ON"
+          ];
+          buildInputs = [
+            pkgs.libdrm
+            pkgs.libgbm
+            pkgs.libxkbcommon
+            pkgs.libinput
+            pkgs.udev
+            pkgs.libGL
+          ];
+          propagatedBuildInputs = [
+            pkgs.libdrm
+            pkgs.libgbm
+            pkgs.libxkbcommon
+            pkgs.libinput
+            pkgs.udev
+            pkgs.libGL
+          ];
+          NIX_CFLAGS_COMPILE = "-I${pkgs.libdrm.dev}/include/libdrm";
+        });
 
         commonBuildInputs = with pkgs;
           [
             openssl
             shaderc
+            raylibDrm
           ]
-          ++ pkgs.lib.optionals (!isDarwin) (
-            [
-              udev
-              libGL
-              glfw
-              llvmPackages.libclang
-            ]
-            ++ x11Libs
-          );
+          ++ pkgs.lib.optionals (!isDarwin) [
+            llvmPackages.libclang
+          ];
 
         commonNativeBuildInputs = with pkgs; [
           pkg-config