lin64_build/soundsource.o: In function `Mixxx::SoundSource::processMP4Tag(TagLib::MP4::Tag*)':
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:421: undefined reference to `TagLib::MP4::Tag::itemListMap()'
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:421: undefined reference to `TagLib::MP4::Tag::itemListMap()'
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:423: undefined reference to `TagLib::MP4::Item::toStringList() const'
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:428: undefined reference to `TagLib::MP4::Tag::itemListMap()'
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:433: undefined reference to `TagLib::MP4::Tag::itemListMap()'
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:434: undefined reference to `TagLib::MP4::Tag::itemListMap()'
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:434: undefined reference to `TagLib::MP4::Item::toStringList() const'
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:429: undefined reference to `TagLib::MP4::Tag::itemListMap()'
/usr/local/src/mixxx/1.9/mixxx/src/soundsource.cpp:429: undefined reference to `TagLib::MP4::Item::toStringList() const'
lin64_build/soundsource.o: In function `~pair':
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::~Item()'
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::~Item()'
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::~Item()'
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::~Item()'
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::~Item()'
lin64_build/soundsource.o:/usr/include/c++/4.4/bits/stl_pair.h:68: more undefined references to `TagLib::MP4::Item::~Item()' follow
lin64_build/soundsource.o: In function `pair':
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::Item(TagLib::MP4::Item const&)'
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::Item(TagLib::MP4::Item const&)'
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::Item(TagLib::MP4::Item const&)'
lin64_build/soundsource.o: In function `std::map<TagLib::String, TagLib::MP4::Item, std::less<TagLib::String>, std::allocator<std::pair<TagLib::String const, TagLib::MP4::Item> > >::operator[](TagLib::String const&)':
/usr/include/c++/4.4/bits/stl_map.h:450: undefined reference to `TagLib::MP4::Item::Item()'
lin64_build/soundsource.o: In function `pair':
/usr/include/c++/4.4/bits/stl_pair.h:84: undefined reference to `TagLib::MP4::Item::Item(TagLib::MP4::Item const&)'
lin64_build/soundsource.o: In function `~pair':
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::~Item()'
lin64_build/soundsource.o: In function `std::map<TagLib::String, TagLib::MP4::Item, std::less<TagLib::String>, std::allocator<std::pair<TagLib::String const, TagLib::MP4::Item> > >::operator[](TagLib::String const&)':
/usr/include/c++/4.4/bits/stl_map.h:450: undefined reference to `TagLib::MP4::Item::~Item()'
/usr/include/c++/4.4/bits/stl_map.h:450: undefined reference to `TagLib::MP4::Item::~Item()'
lin64_build/soundsource.o: In function `~pair':
/usr/include/c++/4.4/bits/stl_pair.h:68: undefined reference to `TagLib::MP4::Item::~Item()'
lin64_build/audiotagger.o: In function `AudioTagger::save()':
/usr/local/src/mixxx/1.9/mixxx/src/audiotagger.cpp:114: undefined reference to `TagLib::MP4::File::File(char const*, bool, TagLib::AudioProperties::ReadStyle)'
collect2: ld returned 1 exit status
scons: *** [lin64_build/mixxx] Error 1
scons: building terminated because of errors.