libglade2 fails to build on leopard

[quuxster@…]

gcc -DHAVE_CONFIG_H -I. -I.. -DG_LOG_DOMAIN=\"libglade\" -I.. -DXTHREADS -I/opt/local/include/libxml2 -I/opt/local/include -I/opt/local/include/atk-1.0 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/gtk-2.0 -I/opt/local/lib/gtk-2.0/include -I/opt/local/include/cairo -I/opt/local/include/pango-1.0 -I/opt/local/include/freetype2 -I/opt/local/include/libpng12 -I/usr/X11/include -DGLADE_LIBDIR=\"/opt/local/lib\" -DGLADE_PREFIX=\"/opt/local\" -DG_DISABLE_DEPRECATED -DGDK_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED -DGNOME_DISABLE_DEPRECATED -I/opt/local/include -O2 -Wall -std=c9x -MT glade-parser.lo -MD -MP -MF .deps/glade-parser.Tpo -c glade-parser.c -o glade-parser.o >/dev/null 2>&1

mv -f .deps/glade-parser.Tpo .deps/glade-parser.Plo /bin/sh ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -DG_LOG_DOMAIN=\"libglade\" -I.. -DXTHREADS -I/opt/local/include/libxml2 -I/opt/local/include -I/opt/local/include/atk-1.0 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/gtk-2.0 -I/opt/local/lib/gtk-2.0/include -I/opt/local/include/cairo -I/opt/local/include/pango-1.0 -I/opt/local/include/freetype2 -I/opt/local/include/libpng12 -I/usr/X11/include -DGLADE_LIBDIR=\""/opt/local/lib"\" -DGLADE_PREFIX=\""/opt/local"\" -DG_DISABLE_DEPRECATED -DGDK_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED -DGNOME_DISABLE_DEPRECATED -I/opt/local/include -O2 -Wall -std=c9x -MT glade-gtk.lo -MD -MP -MF .deps/glade-gtk.Tpo -c -o glade-gtk.lo glade-gtk.c

gcc -DHAVE_CONFIG_H -I. -I.. -DG_LOG_DOMAIN=\"libglade\" -I.. -DXTHREADS -I/opt/local/include/libxml2 -I/opt/local/include -I/opt/local/include/atk-1.0 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/gtk-2.0 -I/opt/local/lib/gtk-2.0/include -I/opt/local/include/cairo -I/opt/local/include/pango-1.0 -I/opt/local/include/freetype2 -I/opt/local/include/libpng12 -I/usr/X11/include -DGLADE_LIBDIR=\"/opt/local/lib\" -DGLADE_PREFIX=\"/opt/local\" -DG_DISABLE_DEPRECATED -DGDK_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED -DGNOME_DISABLE_DEPRECATED -I/opt/local/include -O2 -Wall -std=c9x -MT glade-gtk.lo -MD -MP -MF .deps/glade-gtk.Tpo -c glade-gtk.c -fno-common -DPIC -o .libs/glade-gtk.o gcc -DHAVE_CONFIG_H -I. -I.. -DG_LOG_DOMAIN=\"libglade\" -I.. -DXTHREADS -I/opt/local/include/libxml2 -I/opt/local/include -I/opt/local/include/atk-1.0 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/gtk-2.0 -I/opt/local/lib/gtk-2.0/include -I/opt/local/include/cairo -I/opt/local/include/pango-1.0 -I/opt/local/include/freetype2 -I/opt/local/include/libpng12 -I/usr/X11/include -DGLADE_LIBDIR=\"/opt/local/lib\" -DGLADE_PREFIX=\"/opt/local\" -DG_DISABLE_DEPRECATED -DGDK_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED -DGNOME_DISABLE_DEPRECATED -I/opt/local/include -O2 -Wall -std=c9x -MT glade-gtk.lo -MD -MP -MF .deps/glade-gtk.Tpo -c glade-gtk.c -o glade-gtk.o >/dev/null 2>&1

mv -f .deps/glade-gtk.Tpo .deps/glade-gtk.Plo /bin/sh ../libtool --tag=CC --mode=link gcc -O2 -Wall -std=c9x -version-info 0:7:0 -export-symbols-regex "[_].*" -no-undefined -L/opt/local/lib -o libglade-2.0.la -rpath /opt/local/lib glade-init.lo glade-xml.lo glade-parser.lo glade-gtk.lo -L/opt/local/lib -L/usr/X11R6/lib -L/usr/X11/lib -lxml2 -lpthread -lm -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo -lSM -lICE -lgobject-2.0 -lgmodule-2.0 -lfreetype -lz -lfontconfig -lexpat -lpng12 -lXrender -lX11 -lglib-2.0 -lintl -liconv generating symbol list for `libglade-2.0.la' /usr/bin/nm -p .libs/glade-init.o .libs/glade-xml.o .libs/glade-parser.o .libs/glade-gtk.o | sed -n -e 's/.*[ ]\([BCDEGRST][BCDEGRST]*\)[ ][ ]*_\([_A-Za-z][_A-Za-z0-9]*\)$/\1 _\2 \2/p' | /usr/bin/sed 's/.* ' | sort | uniq > .libs/libglade-2.0.exp /usr/bin/grep -E -e "[_].*" ".libs/libglade-2.0.exp" > ".libs/libglade-2.0.expT" mv -f ".libs/libglade-2.0.expT" ".libs/libglade-2.0.exp" sed -e "s,#.*" -e "s,[ ]*" -e "s,\(..*\),_&," < .libs/libglade-2.0.exp > .libs/libglade-2.0-symbols.expsym gcc -dynamiclib -o .libs/libglade-2.0.0.0.7.dylib .libs/glade-init.o .libs/glade-xml.o .libs/glade-parser.o .libs/glade-gtk.o -L/opt/local/lib -L/usr/X11R6/lib -L/usr/X11/lib /opt/local/lib/libxml2.dylib /opt/local/lib/libz.dylib -lpthread -lm /opt/local/lib/libgtk-x11-2.0.dylib /opt/local/lib/libgdk-x11-2.0.dylib /opt/local/lib/libatk-1.0.dylib /opt/local/lib/libgdk_pixbuf-2.0.dylib /opt/local/lib/libtiff.dylib /opt/local/lib/libjpeg.dylib /opt/local/lib/libpangocairo-1.0.dylib /usr/X11R6/lib/libSM.dylib /usr/X11R6/lib/libICE.dylib /usr/X11R6/lib/libX11.dylib /usr/X11/lib/libXau.6.0.0.dylib /usr/X11/lib/libXdmcp.6.0.0.dylib /opt/local/lib/libpangoft2-1.0.dylib /opt/local/lib/libpango-1.0.dylib /opt/local/lib/libcairo.dylib /usr/X11/lib/libSM.6.0.0.dylib /usr/X11/lib/libICE.6.3.0.dylib /opt/local/lib/libgobject-2.0.dylib /opt/local/lib/libgmodule-2.0.dylib /opt/local/lib/libfreetype.dylib -lz /opt/local/lib/libfontconfig.dylib /opt/local/lib/libexpat.dylib /opt/local/lib/libpng12.dylib /opt/local/lib/libXrender.dylib /usr/X11/lib/libX11.6.2.0.dylib /opt/local/lib/libglib-2.0.dylib /opt/local/lib/libintl.dylib /opt/local/lib/libiconv.dylib -install_name /opt/local/lib/libglade-2.0.0.dylib -Wl,-compatibility_version -Wl,1 -Wl,-current_version -Wl,1.7 ld: duplicate symbol _g_bit_nth_lsf in .libs/glade-xml.o and .libs/glade-init.o

collect2: ld returned 1 exit status make[2]: * [libglade-2.0.la] Error 1 make[1]: * [all-recursive] Error 1 make: * [all] Error 2

Error: Status 1 encountered during processing.