meson: Use CMake to configure SDL3

Author: mborgerson

meson.build

@@ -1664,16 +1664,39 @@ endif
 
 sdl = not_found
 if not get_option('sdl').auto() or have_system
-  sdl = dependency('sdl3', required: get_option('sdl'),
-                   fallback: ['sdl3', 'sdl3_dep'],
-                   default_options: ['default_library=static'])
+  sdl = dependency('sdl3', required: false, allow_fallback: false)
+  if not sdl.found() and not get_option('sdl').disabled()
+    sdl3_cmake_opts = cmake.subproject_options()
+    sdl3_cmake_opts.add_cmake_defines({
+      'SDL_CAMERA': 'OFF',
+      'SDL_DISKAUDIO': 'OFF',
+      'SDL_DUMMYVIDEO': 'OFF',
+      'SDL_FRIBIDI': 'OFF',
+      'SDL_GPU': 'OFF',
+      'SDL_HAPTIC': 'OFF',
+      'SDL_LIBTHAI': 'OFF',
+      'SDL_POWER': 'OFF',
+      'SDL_RENDER': 'OFF',
+      'SDL_SENSOR': 'OFF',
+      'SDL_SHARED': 'OFF',
+      'SDL_STATIC': 'ON',
+      'SDL_TEST_LIBRARY': 'OFF',
+      'SDL_TRAY': 'OFF',
+      'SDL_VIRTUAL_JOYSTICK': 'OFF',
+      'SDL_X11_XTEST': 'OFF',
+    })
+    sdl3_sp = cmake.subproject('sdl3', options: sdl3_cmake_opts, required: get_option('sdl'))
+    if sdl3_sp.found()
+      sdl = sdl3_sp.dependency('SDL3-static')
+      meson.override_dependency('sdl3', sdl)
+    endif
+  endif
   sdl_image = not_found
 endif
 if sdl.found()
   # Some versions of SDL have problems with -Wundef
   if not cc.compiles('''
                      #include <SDL3/SDL.h>
-                     #include <SDL_syswm.h>
                      int main(int argc, char *argv[]) { return 0; }
                      ''', dependencies: sdl.partial_dependency(compile_args: true, includes: true), args: '-Werror=undef')
     sdl = declare_dependency(compile_args: '-Wno-undef',