Merge pull request #263137 from nagy/nagy/chicken-fix

chickenPackages.chickenEggs.sdl2{,-image,-ttf}: fix build on linux

pkgs/development/compilers/chicken/5/overrides.nix

···
     addToNativeBuildInputs (lib.optionals (stdenv.system == "x86_64-darwin") [ pkgs.memorymappingHook ])
       (addPkgConfig old);
   sdl-base = addToBuildInputs pkgs.SDL;
-  sdl2 = addToPropagatedBuildInputsWithPkgConfig pkgs.SDL2;
-  sdl2-image = addToBuildInputs pkgs.SDL2_image;
-  sdl2-ttf = addToBuildInputs pkgs.SDL2_ttf;
+  sdl2 = old:
+    ((addToPropagatedBuildInputsWithPkgConfig pkgs.SDL2 old) //
+      # needed for sdl2-config to be in PATH
+      (addToNativeBuildInputs pkgs.SDL2 old));
+  sdl2-image = old:
+    ((addToPropagatedBuildInputsWithPkgConfig pkgs.SDL2_image old) //
+      # needed for sdl2-config to be in PATH
+      (addToNativeBuildInputs pkgs.SDL2 old));
+  sdl2-ttf = old:
+    ((addToPropagatedBuildInputsWithPkgConfig pkgs.SDL2_ttf old) //
+      # needed for sdl2-config to be in PATH
+      (addToNativeBuildInputs pkgs.SDL2 old));
   soil = addToPropagatedBuildInputsWithPkgConfig pkgs.libepoxy;
   sqlite3 = addToBuildInputs pkgs.sqlite;
   stemmer = old: