None required

Here is the procedure to install CLUSTALW from its source code:

• The source code archive was downloaded and put under /home/bioubuntu, decompressed and the created folder is moved toward /opt/bio/sources.

% sudo mv clustalw-2.0.12 /opt/bio/sources

• This folder should belong to root and its permissions should be set at 755.

% sudo chown -R root:root /opt/bio/sources/clustalw-2.0.12

• Once you are in /opt/bio/sources/clustalw-2.0.12, compilation is easily done:

% sudo ./configure && sudo make

• Because EMBOSS is looking for clustalw, not clustalw2, we need to change the name. We also need to make it available to all users:

% sudo ln -s /opt/bio/sources/clustalw-2.0.11/src/clustalw2 /usr/local/bin/clustalw