Playmus doesn't play mp3 anymore

After an upgrade to SDL_mixer 1.2.0 and to smpeg-0.4.3
I’ve found out that playmus doesn’t play mp3 files anymore.

The config option --enable-music-mp3=yes doesn’t work
by default neither explicitly in ./configure --enable-music-mp3=yes

Is it me or there is a bug ?

Ant?nio F. Vargas.