undefined symbol: FLAC__metadata_simple_iterator_new

Hi guys,

I need help.

I'm receiving following error when I'm trying to browse a directory containing flac files.

Feb 15 10:08:30.822380: tags_cache.c:425 tags_cache_add_request(): Request for tags for /home/calin/Music/1974—John Lee Hooker - Free Beer and Chicken/John Lee Hooker - Free Beer and Chicken.flac from client 0
Feb 15 10:08:30.822477: tags_cache.c:232 tags_cache_read_add(): Getting tags for /home/calin/Music/1974—John Lee Hooker - Free Beer and Chicken/John Lee Hooker - Free Beer and Chicken.flac
mocp: symbol lookup error: /usr/local/lib/moc/decoder_plugins/libflac_decoder.so: undefined symbol: FLAC__metadata_simple_iterator_new

I'm running Centos 5.5 x64
Flac libs and headers are from flac-devel package .
# flac -v
flac 1.1.2

moc compile with LIBFLAC_CFLAGS="-I/usr/include/FLAC/" LIBFLAC_LIBS="-I/usr/lib64/" , version moc-2.4.4
I did't receive any errors at compilation.

Thanks.