libsdl_mixer fails to build under Snow Leopard

[info@…]

make: *** [build/native_midi_mac.lo] Error 1
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/(...)libsdl_mixer/work/SDL_mixer-1.2.8" && /usr/bin/nice -n 10 /usr/bin/make -j3 all " returned error 2
Command output: ./native_midi/native_midi_mac.c:239: error: 'gTunePlayer' undeclared (first use in this function)
./native_midi/native_midi_mac.c: In function 'native_midi_start':
./native_midi/native_midi_mac.c:251: error: 'gTunePlayer' undeclared (first use in this function)
./native_midi/native_midi_mac.c:260: error: 'kTuneStartNow' undeclared (first use in this function)
./native_midi/native_midi_mac.c: In function 'native_midi_stop':
./native_midi/native_midi_mac.c:310: error: 'gTunePlayer' undeclared (first use in this function)
./native_midi/native_midi_mac.c: In function 'native_midi_active':
./native_midi/native_midi_mac.c:322: error: 'gTunePlayer' undeclared (first use in this function)
./native_midi/native_midi_mac.c:324: error: 'TuneStatus' undeclared (first use in this function)
./native_midi/native_midi_mac.c:324: error: expected ';' before 'ts'
./native_midi/native_midi_mac.c:326: error: 'ts' undeclared (first use in this function)
./native_midi/native_midi_mac.c: In function 'native_midi_setvolume':
./native_midi/native_midi_mac.c:335: error: 'gTunePlayer' undeclared (first use in this function)
./native_midi/native_midi_mac.c: In function 'BuildTuneSequence':
./native_midi/native_midi_mac.c:432: error: 'kFirstDrumkit' undeclared (first use in this function)
./native_midi/native_midi_mac.c:434: error: 'kFirstGMInstrument' undeclared (first use in this function)
./native_midi/native_midi_mac.c:504: error: 'kControllerVolume' undeclared (first use in this function)
./native_midi/native_midi_mac.c:516: error: 'kControllerPan' undeclared (first use in this function)
./native_midi/native_midi_mac.c:567: error: 'kControllerPitchBend' undeclared (first use in this function)
./native_midi/native_midi_mac.c:618: error: 'kEndMarkerValue' undeclared (first use in this function)
./native_midi/native_midi_mac.c: In function 'BuildTuneHeader':
./native_midi/native_midi_mac.c:627: error: 'myNoteRequest' undeclared (first use in this function)
./native_midi/native_midi_mac.c:628: error: 'NoteAllocator' undeclared (first use in this function)
./native_midi/native_midi_mac.c:628: error: expected ';' before 'myNoteAllocator'
./native_midi/native_midi_mac.c:633: error: 'myNoteAllocator' undeclared (first use in this function)
./native_midi/native_midi_mac.c:638: error: 'kNoteAllocatorComponentType' undeclared (first use in this function)
./native_midi/native_midi_mac.c:661: error: 'kGeneralEventNoteRequest' undeclared (first use in this function)
./native_midi/native_midi_mac.c:662: error: expected expression before ')' token
./native_midi/native_midi_mac.c:688: error: 'kEndMarkerValue' undeclared (first use in this function)
make: *** [build/native_midi_mac.lo] Error 1

[info@…]

Sorry - should be renamed to:

libsdl_mixer fails to build under Snow Leopard ...