gamescope: also patch script paths (#383896)

pkgs/by-name/ga/gamescope/package.nix

@@ -59,7 +59,8 @@ stdenv.mkDerivation (finalAttrs: {
   };
 
   patches = [
-    # Make it look for shaders in the right place
+    # Make it look for data in the right place
+    ./scripts-path.patch
     ./shaders-path.patch
     # patch relative gamescopereaper path with absolute
     ./gamescopereaper.patch
@@ -69,8 +70,11 @@ stdenv.mkDerivation (finalAttrs: {
   # so `placeholder "out"` ends up pointing to the wrong place
   postPatch = ''
     substituteInPlace src/reshade_effect_manager.cpp --replace-fail "@out@" "$out"
+    substituteInPlace src/Script/Script.cpp --replace-fail "@out@" "$out"
+
     # Patching shebangs in the main `libdisplay-info` build
     patchShebangs subprojects/libdisplay-info/tool/gen-search-table.py
+
     # Replace gamescopereeaper with absolute path
     substituteInPlace src/Utils/Process.cpp --subst-var-by "gamescopereaper" "$out/bin/gamescopereaper"
     patchShebangs default_scripts_install.sh

pkgs/by-name/ga/gamescope/scripts-path.patch

@@ -0,0 +1,13 @@
+diff --git a/src/Script/Script.cpp b/src/Script/Script.cpp
+index a104ee9..f7cfc8b 100644
+--- a/src/Script/Script.cpp
++++ b/src/Script/Script.cpp
+@@ -130,7 +130,7 @@ namespace gamescope
+         }
+         else
+         {
+-            RunFolder( "/usr/share/gamescope/scripts", true );
++            RunFolder( "@out@/share/gamescope/scripts", true );
+             RunFolder( "/etc/gamescope/scripts", true );
+         }
+