SDL2: point alias to sdl2-compat (#393386)

pkgs/by-name/mo/moonlight-qt/package.nix

···
   qt6,
   pkg-config,
   vulkan-headers,
-  SDL2,
+  SDL2_classic,
   SDL2_ttf,
   ffmpeg,
   libopus,
···
 
   buildInputs =
     [
-      (SDL2.override { drmSupport = stdenv.hostPlatform.isLinux; })
+      (SDL2_classic.override { drmSupport = stdenv.hostPlatform.isLinux; })
       SDL2_ttf
       ffmpeg
       libopus

pkgs/by-name/mo/movit/package.nix

···
   darwin,
   eigen,
   libepoxy,
+  libGL,
+  libX11,
 }:
 
 stdenv.mkDerivation rec {
···
       SDL2
       fftw
       gtest
+      libGL
+      libX11
     ]
     ++ lib.optionals stdenv.hostPlatform.isDarwin [
       darwin.apple_sdk.frameworks.OpenGL

pkgs/by-name/sd/sdl2-compat/package.nix

···
     homepage = "https://libsdl.org";
     changelog = "https://github.com/libsdl-org/sdl2-compat/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.zlib;
-    maintainers = with lib.maintainers; [ nadiaholmquist ];
+    maintainers = with lib.maintainers; [
+      nadiaholmquist
+      grimmauld
+      marcin-serwin
+    ];
     platforms = lib.platforms.all;
     pkgConfigModules = [ "sdl2_compat" ];
   };

pkgs/by-name/th/the-powder-toy/package.nix

···
   jsoncpp,
   lib,
   libpng,
+  libX11,
   lua,
   luajit,
   meson,
···
     fftwFloat
     jsoncpp
     libpng
+    libX11
     lua
     luajit
     SDL2

pkgs/by-name/th/theforceengine/package.nix

···
   stdenv,
   fetchFromGitHub,
   fetchpatch,
-  SDL2,
+  SDL2_classic,
   SDL2_image,
   rtaudio,
   rtmidi,
···
 }:
 let
   # package depends on SDL2main static library
-  SDL2' = SDL2.override {
+  SDL2' = SDL2_classic.override {
     withStatic = true;
   };
 in

pkgs/games/devilutionx/default.nix

···
   pkg-config,
   gettext,
   libsodium,
-  SDL2,
+  SDL2_classic,
   SDL2_image,
   SDL_audiolib,
   flac,
···
     fmt
     libpng
     libsodium
-    SDL2
+    SDL2_classic
     SDL2_image
     SDL_audiolib'
   ];

pkgs/top-level/all-packages.nix

···
   };
 
   SDL = SDL_compat;
+  SDL2 = sdl2-compat;
 
-  SDL2 = callPackage ../development/libraries/SDL2 {
+  SDL2_classic = callPackage ../by-name/sd/SDL2_classic/package.nix {
     inherit (darwin.apple_sdk.frameworks) AudioUnit Cocoa CoreAudio CoreServices ForceFeedback OpenGL;
   };
 
···
 
   devilutionx = callPackage ../games/devilutionx {
     fmt = fmt_9;
-    SDL2 = SDL2.override {
+    SDL2_classic = SDL2_classic.override {
       withStatic = true;
     };
   };