Revert "SDL2{,_classic}_mixer_2_0: drop"

pkgs/by-name/sd/SDL2_classic_mixer_2_0/package.nix

@@ -0,0 +1,8 @@
+{
+  SDL2_mixer_2_0,
+  SDL2_classic_mixer,
+}:
+
+SDL2_mixer_2_0.override {
+  SDL2_mixer = SDL2_classic_mixer;
+}

pkgs/by-name/sd/SDL2_mixer_2_0/SDL_mixer-2.0-incompatible-pointer-comparison-fix.patch

@@ -0,0 +1,26 @@
+--- a/music_mpg123.c	2018-10-31 10:59:00.000000000 -0400
++++ b/music_mpg123.c	2023-09-05 21:31:51.529191521 -0400
+@@ -48,7 +48,11 @@
+     int (*mpg123_open_handle)(mpg123_handle *mh, void *iohandle);
+     const char* (*mpg123_plain_strerror)(int errcode);
+     void (*mpg123_rates)(const long **list, size_t *number);
++#if (MPG123_API_VERSION >= 45) /* api (but not abi) change as of mpg123-1.26.0 */
++    int (*mpg123_read)(mpg123_handle *mh, void *outmemory, size_t outmemsize, size_t *done );
++#else
+     int (*mpg123_read)(mpg123_handle *mh, unsigned char *outmemory, size_t outmemsize, size_t *done );
++#endif
+     int (*mpg123_replace_reader_handle)( mpg123_handle *mh, ssize_t (*r_read) (void *, void *, size_t), off_t (*r_lseek)(void *, off_t, int), void (*cleanup)(void*) );
+     off_t (*mpg123_seek)( mpg123_handle *mh, off_t sampleoff, int whence );
+     const char* (*mpg123_strerror)(mpg123_handle *mh);
+@@ -95,7 +99,11 @@
+         FUNCTION_LOADER(mpg123_open_handle, int (*)(mpg123_handle *mh, void *iohandle))
+         FUNCTION_LOADER(mpg123_plain_strerror, const char* (*)(int errcode))
+         FUNCTION_LOADER(mpg123_rates, void (*)(const long **list, size_t *number));
++#if (MPG123_API_VERSION >= 45) /* api (but not abi) change as of mpg123-1.26.0 */
++        FUNCTION_LOADER(mpg123_read, int (*)(mpg123_handle *mh, void *outmemory, size_t outmemsize, size_t *done ))
++#else
+         FUNCTION_LOADER(mpg123_read, int (*)(mpg123_handle *mh, unsigned char *outmemory, size_t outmemsize, size_t *done ))
++#endif
+         FUNCTION_LOADER(mpg123_replace_reader_handle, int (*)( mpg123_handle *mh, ssize_t (*r_read) (void *, void *, size_t), off_t (*r_lseek)(void *, off_t, int), void (*cleanup)(void*) ))
+         FUNCTION_LOADER(mpg123_seek, off_t (*)( mpg123_handle *mh, off_t sampleoff, int whence ))
+         FUNCTION_LOADER(mpg123_strerror, const char* (*)(mpg123_handle *mh))

pkgs/by-name/sd/SDL2_mixer_2_0/package.nix

@@ -0,0 +1,37 @@
+{
+  SDL2_mixer,
+  fetchFromGitHub,
+  fetchpatch,
+  timidity,
+}:
+
+let
+  attrset = {
+    version = "2.0.4";
+
+    src = fetchFromGitHub {
+      owner = "libsdl-org";
+      repo = "SDL_mixer";
+      rev = "release-${attrset.version}";
+      hash = "sha256-vo9twUGeK2emDiGd9kSGuA/X8TxVmQrRFFm71zawWYM=";
+    };
+
+    patches = [
+      # These patches fix incompatible function pointer conversion errors with clang 16.
+      (fetchpatch {
+        url = "https://github.com/libsdl-org/SDL_mixer/commit/4119ec3fe838d38d2433f4432cd18926bda5d093.patch";
+        stripLen = 2;
+        hash = "sha256-Ug1EEZIRcV8+e1MeMsGHuTW7Zn6j4szqujP8IkIq2VM=";
+      })
+      # Based on https://github.com/libsdl-org/SDL_mixer/commit/64ab759111ddb1b033bcce64e1a04e0cba6e498f
+      ./SDL_mixer-2.0-incompatible-pointer-comparison-fix.patch
+    ];
+
+    # fix default path to timidity.cfg so MIDI files could be played
+    postPatch = ''
+      substituteInPlace timidity/options.h \
+        --replace "/usr/share/timidity" "${timidity}/share/timidity"
+    '';
+  };
+in
+SDL2_mixer.overrideAttrs (_: attrset)

pkgs/top-level/aliases.nix

@@ -1655,8 +1655,6 @@ mapAliases {
   SDL1 = throw "'SDL1' has been removed as development ended long ago with SDL 2.0 replacing it, use SDL_compat instead"; # Added 2025-03-27
   SDL_gpu = throw "'SDL_gpu' has been removed due to lack of upstream maintenance and known users"; # Added 2025-03-15
   SDL_image_2_0 = throw "'SDL_image_2_0' has been removed in favor of the latest version"; # Added 2025-04-20
-  SDL2_mixer_2_0 = throw "'SDL2_mixer_2_0' has been removed in favor of the latest version"; # Added 2025-04-27
-  SDL2_classic_mixer_2_0 = throw "'SDL2_classic_mixer_2_0' has been removed in favor of the latest version"; # Added 2025-04-27
   s2n = throw "'s2n' has been renamed to/replaced by 's2n-tls'"; # Converted to throw 2024-10-17
   sandboxfs = throw "'sandboxfs' has been removed due to being unmaintained, consider using linux namespaces for sandboxing instead"; # Added 2024-06-06
   sane-backends-git = throw "'sane-backends-git' has been renamed to/replaced by 'sane-backends'"; # Converted to throw 2024-10-17