$ export CFLAGS="-march=i486 -mtune=i686 -Os -pipe"
$ export CXXFLAGS="-march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti"
$ export PKG_CONFIG_PATH=/usr/lib/pkgconfig:/usr/local/lib/pkgconfig

using subversion-1.5.5.tar.bz2 and subversion-deps-1.5.5.tar.bz2

rm -r serf
rm -r zlib

$ ./configure --prefix=/usr/local --with-ssl
$ make
$ sudo make install