At the end of the build process:

	/bin/sh ../libtool --tag=CC --mode=link gcc  -v -pipe -fPIC -O0 -mcpu=7450 -mtune=7450 -fno-common  -dead_strip -bind_at_load -L/sw/lib/freetype219/lib -L/sw/lib/fontconfig2/lib -L/sw/lib/ncurses -L/sw/lib -L/usr/local/lib -o liblbxutil.la -rpath /usr/X11R7.2/lib -version-number 1:0:0 -no-undefined lbx_zlib_io.lo lbx_zlib.lo reqstats.lo misc.lo dpackbits.lo epackbits.lo dfaxg42d.lo efaxg42d.lo lbxdelta.lo  -lz 
	gcc -dynamiclib  -o .libs/liblbxutil.1.0.0.dylib  .libs/lbx_zlib_io.o .libs/lbx_zlib.o .libs/reqstats.o .libs/misc.o .libs/dpackbits.o .libs/epackbits.o .libs/dfaxg42d.o .libs/efaxg42d.o .libs/lbxdelta.o  -L/sw/lib/freetype219/lib -L/sw/lib/fontconfig2/lib -L/sw/lib/ncurses -L/sw/lib -L/usr/local/lib -lz  -mcpu=7450 -mtune=7450 -install_name  /usr/X11R7.2/lib/liblbxutil.1.dylib -Wl,-compatibility_version -Wl,2 -Wl,-current_version -Wl,2.0
	ld: warning prebinding disabled because of undefined symbols
	ld: Undefined symbols:
	_Xalloc
	_Xfree
	/usr/bin/libtool: internal link edit command failed
	make[2]: *** [liblbxutil.la] Error 1
	make[1]: *** [all-recursive] Error 1
	make: *** [all] Error 2
	***** make failed on lib/liblbxutil