undefined externals while compiling svnversion?

I am just attempting to upgrade from 0.22 to 0.23 on a Gentoo Linux box.
I did all the things as per the notes I kept for the last time around
but now I am getting the following undefined external linker error:

cd subversion/svnversion && /bin/sh /work/src/svn/libtool --silent
--mode=link gcc -g -O2 -pthread -DNEON_ZLIB -DNEON_SSL
-L/work/db-4.0.14/lib -rpath /work/svn-head/lib -o svnversion main.o
./../subversion/libsvn_client/libsvn_client-1.la
/work/apache-head/lib/libaprutil-0.la -lgdbm
/work/db-4.0.14/lib/libdb-4.0.la -lexpat
/work/apache-head/lib/libapr-0.la -lrt -lm -lcrypt -lnsl -ldl
/work/src/svn/subversion/libsvn_ra_dav/.libs/libsvn_ra_dav-1.so:
undefined reference to `ne_get_session_private'
/work/src/svn/subversion/libsvn_ra_dav/.libs/libsvn_ra_dav-1.so:
undefined reference to `ne_set_session_private'
collect2: ld returned 1 exit status
make: *** [subversion/svnversion/svnversion] Error 1

Does that ring a bell with anyone? Anything obvious I am missing?

-- 
Jens-Uwe Mager	<pgp-mailto:F476EBC2>
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