meson: remove redundant sdl2 option

This disables the individual options by default, since they were gated by the parent option before.

meson.build

@@ -739,19 +739,16 @@ if features['rubberband']
     sources += files('audio/filter/af_rubberband.c')
 endif
 
-sdl2 = dependency('sdl2', required: get_option('sdl2'))
-features += {'sdl2': sdl2.found()}
-if features['sdl2']
-    dependencies += sdl2
-endif
+sdl2 = dependency('sdl2', required: false)
 
 sdl2_gamepad = get_option('sdl2-gamepad').require(
-    features['sdl2'],
+    sdl2.found(),
     error_message: 'sdl2 was not found!',
 )
 features += {'sdl2-gamepad': sdl2_gamepad.allowed()}
 if features['sdl2-gamepad']
     sources += files('input/sdl_gamepad.c')
+    dependencies += sdl2
 endif
 
 uchardet_opt = get_option('uchardet').require(
@@ -895,12 +892,13 @@ if features['pulse']
 endif
 
 sdl2_audio = get_option('sdl2-audio').require(
-    features['sdl2'],
+    sdl2.found(),
     error_message: 'sdl2 was not found!',
 )
 features += {'sdl2-audio': sdl2_audio.allowed()}
 if features['sdl2-audio']
     sources += files('audio/out/ao_sdl.c')
+    dependencies += sdl2
 endif
 
 sndio = dependency('sndio', required: get_option('sndio'))
@@ -975,12 +973,13 @@ if features['jpeg']
 endif
 
 sdl2_video = get_option('sdl2-video').require(
-    features['sdl2'],
+    sdl2.found(),
     error_message: 'sdl2 was not found!',
 )
 features += {'sdl2-video': sdl2_video.allowed()}
 if features['sdl2-video']
     sources += files('video/out/vo_sdl.c')
+    dependencies += sdl2
 endif
 
 shaderc = dependency('shaderc', required:

meson.options

@@ -28,8 +28,7 @@ option('lua',
 )
 option('pthread-debug', type: 'feature', value: 'disabled', description: 'pthread runtime debugging wrappers')
 option('rubberband', type: 'feature', value: 'auto', description: 'librubberband support')
-option('sdl2', type: 'feature', value: 'disabled', description: 'SDL2')
-option('sdl2-gamepad', type: 'feature', value: 'auto', description: 'SDL2 gamepad input')
+option('sdl2-gamepad', type: 'feature', value: 'disabled', description: 'SDL2 gamepad input')
 option('uchardet', type: 'feature', value: 'auto', description: 'uchardet support')
 option('uwp', type: 'feature', value: 'disabled', description: 'Universal Windows Platform')
 option('vapoursynth', type: 'feature', value: 'auto', description: 'VapourSynth filter bridge')
@@ -50,7 +49,7 @@ option('opensles', type: 'feature', value: 'auto', description: 'OpenSL ES audio
 option('oss-audio', type: 'feature', value: 'auto', description: 'OSSv4 audio output')
 option('pipewire', type: 'feature', value: 'auto', description: 'PipeWire audio output')
 option('pulse', type: 'feature', value: 'auto', description: 'PulseAudio audio output')
-option('sdl2-audio', type: 'feature', value: 'auto', description: 'SDL2 audio output')
+option('sdl2-audio', type: 'feature', value: 'disabled', description: 'SDL2 audio output')
 option('sndio', type: 'feature', value: 'auto', description: 'sndio audio output')
 option('wasapi', type: 'feature', value: 'auto', description: 'WASAPI audio output')
 
@@ -75,7 +74,7 @@ option('gl-cocoa', type: 'feature', value: 'auto', description: 'OpenGL Cocoa ba
 option('gl-dxinterop', type: 'feature', value: 'auto', description: 'OpenGL/DirectX Interop backend')
 option('gl-win32', type: 'feature', value: 'auto', description: 'OpenGL Win32 backend')
 option('gl-x11', type: 'feature', value: 'disabled', description: 'OpenGL X11/GLX (deprecated/legacy)')
-option('sdl2-video', type: 'feature', value: 'auto', description: 'SDL2 video output')
+option('sdl2-video', type: 'feature', value: 'disabled', description: 'SDL2 video output')
 option('shaderc', type: 'feature', value: 'auto', description: 'libshaderc SPIR-V compiler')
 option('sixel', type: 'feature', value:'auto', description: 'Sixel video output')
 option('spirv-cross', type: 'feature', value: 'auto', description: 'SPIRV-Cross SPIR-V shader converter')