Subversion 1.5.1 + Serf 0.2.0 Segfaults, Neon 0.27.2-0.28.3 all fail during configure

Hello,

I'm installing from source and I get a segfault from a http repository
because of serf I'm suspecting. I read in another thread that it is
experimental and you'd like to get rid of the experimental tag. How can I
help?

I've installed apache from source:

   - ./configure --prefix=/opt --enable-so --enable-ssl --enable-cgi
   --enable-rewrite --enable-mime-magic --enable-dav --with-ssl=/usr/local/ssl
   - make
   - make install

Then serf from source:

   - ./configure --prefix=/opt/serf --with-openssl=/usr/local/ssl
   - make
   - make install

Then subversion:

./configure --prefix=/opt/subversion --with-ssl
--with-apxs=/opt/httpd/bin/apxs --with-serf=/opt/serf
make
make install

Trying to do a http checkout:
/opt/subversion/bin/svn checkout
http://svn.digium.com/svn/asterisk/trunkasterisk
yields this error:
/opt/subversion/bin/svn: error while loading shared libraries:
/opt/serf/lib/libserf-0.so.0: cannot restore segment prot after reloc:
Permission denied

So how do we make this work?

-- 
Kind Regards,
Chris Mylonas