ultima4 - problem compiling with makeMP3Stream not being known

[rubyFeedback]

make

C++ engines/ultima/ultima4/sound/music.o

/home/Temp/rbt/scummvm-22.06.2020/engines/ultima/ultima4/sound/music.cpp: In member function ‘bool Ultima::Ultima4::Music::startMusic(const Common::String&)’:
/home/Temp/rbt/scummvm-22.06.2020/engines/ultima/ultima4/sound/music.cpp:134:52: error: ‘makeMP3Stream’ is not a member of ‘Audio’; did you mean ‘makeModXmS3mStream’?

134 | Audio::SeekableAudioStream *audioStream = Audio::makeMP3Stream(

|
^{| makeModXmS3mStream}

make: * engines/ultima/ultima4/sound/music.o Error 1

This was a git clone checkout from 22nd June 2020.

Perhaps that bug is already known or fixed. I report it anyway. (I actually managed to compile this on my slackware system, but on my current fedora system that failed, which surprised me. May be the gcc in fedora?)

[dreammaster]

I think I've fixed the problem. If the MAD library isn't installed, the call to makeMP3Stream should be disabled, and it wasn't previously. Of course, without it, it means that the MP3 audio won't play, but at least ScummVM should compile again.