installing libxdiff for linux (debian)
wget http://www.xmailserver.org/libxdiff-0.22.tar.gz
tar -xzf libxdiff-0.22.tar.gz
cd libxdiff-0.22
./configure
make
make install
To use xdiff, you will need libxdiff installed, available on the libxdiff homepage » http://www.xmailserver.org/xdiff-lib.html.
Note:
You'll need at least libxdiff 0.7 for these functions to be aware of memory_limit.
installing libxdiff for linux (debian)
wget http://www.xmailserver.org/libxdiff-0.22.tar.gz
tar -xzf libxdiff-0.22.tar.gz
cd libxdiff-0.22
./configure
make
make install