Ubuntu
If you want to compile from source, make sure you have libgnutls-dev installed.
$ sudo apt-get remove gaim
1. You need to download the latest Gaim source from here.
2. You need to install the GNU TLS library development files:
$ sudo apt-get install libgnutls-dev
3. Compile Gaim:
$ ./configure --enable-gnutls=yes
$ sudo make
$ sudo make install