export CFLAGS="-march=i486 -mtune=i686 -Os -pipe"
export CXXFLAGS="-march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti"

load gtk2-dev, gnutls-dev extensions

claws-mail-3.8.0
----------------
./configure --prefix=/usr/local --disable-libetpan

make
sudo make install

*** Claws Mail requires libetpan 0.57 or newer. See http://www.etpan.org/