If » PEAR is available on your *nix-like
system you can use the pear installer to install the xdiff extension, by the
following command: pear -v install xdiff.
You can always download the tar.gz package and install xdiff by hand:
Example #1 xdiff install by hand
gunzip xdiff-xxx.tgz
tar -xvf xdiff-xxx.tar
cd xdiff-xxx
phpize
./configure && make && make install
Installing/Configuring
