ci: use newest alpine for musl build

.github/workflows/musl.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     name: ${{ matrix.config.name }}
     runs-on: ubuntu-24.04
-    container: alpine:3.20
+    container: alpine:3.21
 
     strategy:
       fail-fast: false
@@ -32,9 +32,9 @@ jobs:
       - name: Install dependencies
         run: |
           apk update
-          apk add wget meson ca-certificates samurai git openssl-dev openssl pkgconf sdl2 sdl2-dev sdl2_mixer-dev sdl2_ttf-dev sdl2_mixer-dev sdl2_image-dev dbus-dev patchelf ${{ ( matrix.config.use-clang == true ) && 'clang18' || 'gcc g++' }} ${{ ( matrix.config.use-clang == true && matrix.config.use-clang_stdlib == true ) && 'libc++ libc++-dev' || '' }}
-          echo "CC=${{ matrix.config.use-clang == true && 'clang-18' || 'gcc' }}" >> "$GITHUB_ENV"
-          echo "CXX=${{ matrix.config.use-clang == true && 'clang++-18' || 'g++' }}" >> "$GITHUB_ENV"
+          apk add wget meson ca-certificates samurai git openssl-dev openssl pkgconf sdl2 sdl2-dev sdl2_mixer-dev sdl2_ttf-dev sdl2_mixer-dev sdl2_image-dev dbus-dev patchelf ${{ ( matrix.config.use-clang == true ) && 'clang19' || 'gcc g++' }} ${{ ( matrix.config.use-clang == true && matrix.config.use-clang_stdlib == true ) && 'libc++ libc++-dev llvm-libunwind llvm-libunwind-dev ' || '' }}
+          echo "CC=${{ matrix.config.use-clang == true && 'clang-19' || 'gcc' }}" >> "$GITHUB_ENV"
+          echo "CXX=${{ matrix.config.use-clang == true && 'clang++-19' || 'g++' }}" >> "$GITHUB_ENV"
 
       - uses: actions/checkout@v4
         with:

platforms/build-web.sh

@@ -25,6 +25,7 @@ if ! [ -e "$EMSCRIPTEN_PACTH_FILE" ]; then
     ##TODO: upstream those patches
     # see: https://github.com/emscripten-core/emscripten/pull/18379/commits
     # and: https://github.com/emscripten-core/emscripten/pull/18379
+    # and: https://github.com/emscripten-core/emscripten/pull/22946
 
     git apply --unsafe-paths -p1 --directory="$EMSCRIPTEN_UPSTREAM_ROOT" "$PATCH_DIR/sdl2_image_port.diff"
     git apply --unsafe-paths -p1 --directory="$EMSCRIPTEN_UPSTREAM_ROOT" "$PATCH_DIR/sdl2_mixer_port.diff"

platforms/emscripten/sdl2_image_port.diff

@@ -1,8 +1,8 @@
 diff --git a/tools/ports/sdl2_image.py b/tools/ports/sdl2_image.py
-index c72ef576..0c12feba 100644
+index 70fa1499..36be807b 100644
 --- a/tools/ports/sdl2_image.py
 +++ b/tools/ports/sdl2_image.py
-@@ -16,15 +16,17 @@ variants = {
+@@ -18,7 +18,8 @@ variants = {
  }
 
  OPTIONS = {
@@ -12,46 +12,44 @@ index c72ef576..0c12feba 100644
  }
 
  SUPPORTED_FORMATS = {'avif', 'bmp', 'gif', 'jpg', 'jxl', 'lbm', 'pcx', 'png',
-                      'pnm', 'qoi', 'svg', 'tga', 'tif', 'webp', 'xcf', 'xpm', 'xv'}
+@@ -26,7 +27,8 @@ SUPPORTED_FORMATS = {'avif', 'bmp', 'gif', 'jpg', 'jxl', 'lbm', 'pcx', 'png',
 
  # user options (from --use-port)
--opts: Dict[str, Set] = {
+ opts: Dict[str, Set] = {
 -  'formats': set()
-+opts = {
 +  'formats': set(),
 +  'mt': 0
  }
 
 
-@@ -42,7 +44,7 @@ def get_lib_name(settings):
+@@ -44,7 +46,7 @@ def get_lib_name(settings):
    libname = 'libSDL2_image'
    if formats != '':
-     libname += '_' + formats
--  return libname + '.a'
-+  return libname + ('-mt' if opts['mt'] else '') + '.a'
-
-
- def get(ports, settings, shared):
-@@ -70,6 +72,8 @@ def get(ports, settings, shared):
+     libname += '-' + formats
+-  if settings.PTHREADS:
++  if settings.PTHREADS or opts['mt']:
+     libname += '-mt'
+   return libname + '.a'
 
+@@ -75,7 +77,7 @@ def get(ports, settings, shared):
      if 'jpg' in formats:
-       defs += ['-sUSE_LIBJPEG']
-+    if opts['mt']:
-+      defs += ['-pthread']
+       flags += ['-sUSE_LIBJPEG']
 
-     ports.build_port(src_dir, final, 'sdl2_image', flags=defs, srcs=srcs)
+-    if settings.PTHREADS:
++    if settings.PTHREADS or opts['mt']:
+       flags += ['-pthread']
 
-@@ -99,7 +103,12 @@ def handle_options(options, error_handler):
+     ports.build_port(src_dir, final, 'sdl2_image', flags=flags, srcs=srcs)
+@@ -106,6 +108,12 @@ def handle_options(options, error_handler):
        error_handler(f'{format} is not a supported format')
      else:
        opts['formats'].add(format)
--
 +      
 +  mt = options['mt']
 +  if mt not in ["1","0"]:
 +    error_handler(f'{mt} has to be either 0 or 1')
 +  else:
 +    opts['mt'] = int(mt)
 
+
  def show():
-   return 'sdl2_image (-sUSE_SDL_IMAGE=2 or --use-port=sdl2_image; zlib license)'

tools/dependencies/meson.build

@@ -61,7 +61,7 @@ if meson.is_cross_build()
             ['SDL2_ttf'],
             ['mpg123'],
             ['SDL2_mixer_mp3', 'SDL2_mixer'],
-            ['SDL2_image_png-svg-mt', 'SDL2_image'],
+            ['SDL2_image-png-svg-mt', 'SDL2_image'],
             ['icu_common-mt', 'icu-uc'],
         ]
         foreach native_dependency_tuple : map_native_dependencies