libvorbis @1.2.3 symbols not found - build failure

[whcordis@…]

Snow Leopard (10.6.1) with XCode 3.2

# sudo port install libvorbis
--->  Computing dependencies for libvorbis
--->  Fetching libvorbis
--->  Verifying checksum(s) for libvorbis
--->  Extracting libvorbis
--->  Configuring libvorbis
--->  Building libvorbis
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_audio_libvorbis/work/libvorbis-1.2.3" && /usr/bin/make -j2 all " returned error 2
Command output:       _vorbis_analysis_headerout in info.o
      _vorbis_analysis_headerout in info.o
      _vorbis_analysis_headerout in info.o
      _vorbis_analysis_headerout in info.o
      _vorbis_analysis_headerout in info.o
      _vorbis_analysis_headerout in info.o
      _vorbis_analysis_headerout in info.o
      _vorbis_analysis_headerout in info.o
      _vorbis_synthesis_headerin in info.o
      _vorbis_synthesis_headerin in info.o
      _vorbis_bitrate_flushpacket in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
      _vorbis_bitrate_addblock in bitrate.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[3]: *** [libvorbis.la] Error 1
make[3]: *** Waiting for unfinished jobs....
 /usr/bin/gcc-4.2 -DHAVE_CONFIG_H -I. -I.. -I../include -I/opt/local/include -I/opt/local/include -DDARWIN -fno-common -force_cpusubtype_ALL -Wall -g -O4 -ffast-math -fsigned-char -Wdeclaration-after-statement -O2 -arch x86_64 -DUSE_MEMORY_H -MT vorbisenc.lo -MD -MP -MF .deps/vorbisenc.Tpo -c vorbisenc.c -o vorbisenc.o >/dev/null 2>&1
mv -f .deps/vorbisenc.Tpo .deps/vorbisenc.Plo
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Error: Status 1 encountered during processing.

[whcordis@…]

Please close... a complete rebuild of my Macports tree didn't reproduce the problem.