feat(nix): add support for GameMode

Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>

nix/default.nix

@@ -23,6 +23,8 @@
   cmark,
   msaClientID ? "",
   jdks ? [jdk17 jdk8],
+  gamemodeSupport ? true,
+  gamemode,
   # flake
   self,
   version,
@@ -45,7 +47,8 @@ stdenv.mkDerivation rec {
       tomlplusplus
       cmark
     ]
-    ++ lib.optional (lib.versionAtLeast qtbase.version "6") qtwayland;
+    ++ lib.optional (lib.versionAtLeast qtbase.version "6") qtwayland
+    ++ lib.optional gamemodeSupport gamemode.dev;
 
   cmakeFlags =
     lib.optionals (msaClientID != "") ["-DLauncher_MSA_CLIENT_ID=${msaClientID}"]
@@ -61,7 +64,7 @@ stdenv.mkDerivation rec {
 
   qtWrapperArgs = let
     libpath = with xorg;
-      lib.makeLibraryPath [
+      lib.makeLibraryPath ([
           libX11
           libXext
           libXcursor
@@ -72,7 +75,8 @@ stdenv.mkDerivation rec {
           glfw
           openal
           stdenv.cc.cc.lib
-      ];
+        ]
+        ++ lib.optional gamemodeSupport gamemode.lib);
   in [
     "--set LD_LIBRARY_PATH /run/opengl-driver/lib:${libpath}"
     "--prefix PRISMLAUNCHER_JAVA_PATHS : ${lib.makeSearchPath "bin/java" jdks}"