Fixing git-svn on OS X El Capitan

When you install a new version of Mac OS X, git svn breaks. This happened with Mountain Lion and Mavericks, it happened with Yosemite. It happens again with El Capitan. Unfortunately, the old solutions no longer work due to El Capitan’s System Integrity Protection: $ sudo ln -s /Applications/Xcode.app/Contents/Developer/Library/Perl/5.18/darwin-thread-multi-2level/SVN /System/Library/Perl/Extras/5.18/SVN ln: /System/Library/Perl/Extras/5.18/SVN: Operation not permitted …