MFH: r425104

devel/sfml: unbreak on 9.x via clang

cd src/SFML/Audio && /usr/bin/c++ -DFLAC__NO_DLL -DOV_EXCLUDE_STATIC_CALLBACKS -DSFML_AUDIO_EXPORTS -Iinclude -Isrc -I/usr/local/include/AL -I/usr/local/include -O2 -pipe -fno-strict-aliasing -O2 -pipe -fno-strict-aliasing -fPIC -fvisibility=hidden -o CMakeFiles/sfml-audio.dir/SoundFileFactory.cpp.o -c src/SFML/Audio/SoundFileFactory.cpp
include/SFML/Audio/SoundFileFactory.inl: In static member function 'static void sf::SoundFileFactory::unregisterReader() [with T = sf::priv::SoundFileReaderFlac]':
include/SFML/Audio/SoundFileFactory.inl:43: instantiated from 'static void sf::SoundFileFactory::registerReader() [with T = sf::priv::SoundFileReaderFlac]'
src/SFML/Audio/SoundFileFactory.cpp:48: instantiated from here
include/SFML/Audio/SoundFileFactory.inl:62: error: address of overloaded function with no contextual type information
include/SFML/Audio/SoundFileFactory.inl: In static member function 'static void sf::SoundFileFactory::unregisterWriter() [with T = sf::priv::SoundFileWriterFlac]':
include/SFML/Audio/SoundFileFactory.inl:74: instantiated from 'static void sf::SoundFileFactory::registerWriter() [with T = sf::priv::SoundFileWriterFlac]'
src/SFML/Audio/SoundFileFactory.cpp:49: instantiated from here
include/SFML/Audio/SoundFileFactory.inl:93: error: address of overloaded function with no contextual type information
[...]

Approved by: portmgr blanket
Approved by: ports-secteam blanket