Do in Terminal (requires XCode with Command line tools installed):
curl -O http://rsync.samba.org/ftp/rsync/src/rsync-3.0.8.tar.gz
tar -xzvf rsync-3.0.8.tar.gz
rm rsync-3.0.8.tar.gz
curl -O http://rsync.samba.org/ftp/rsync/src/rsync-patches-3.0.8.tar.gz
tar -xzvf rsync-patches-3.0.8.tar.gz
rm rsync-patches-3.0.8.tar.gz
cd rsync-3.0.8
patch -p1 <patches/fileflags.diff
patch -p1 <patches/crtimes.diff
patch -p1 <patches/hfs-compression.diff
./prepare-source
./configure --prefix /usr/local
make
sudo make install
optional:
export PATH=/usr/local/bin:$PATH