upgrading to SVN 1.8.x for Mac OSX 10.9
1. To compile SVN you need Xcode and command Line Tools.
sudo ln -s /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain /Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.9.xctoolchain
2. Download the SVN Source
3. Build and Install SVN
Subversion 1.8 has removed neon and HTTP client support based on serf.
./get-deps.sh serf
cd serf
./configure
make && sudo make install
cd ..
./configure --prefix=/usr/local --with-serf=/usr/local/serf
make && sudo make install
Path
export PATH=/usr/local/bin:$PATH