tce-load -i libesmtp-dev intltool gmime-dev webkitgtk-dev libnotify-dev enchant-dev gnupg gpgme-dev gnome-keyring-dev

cd balsa-2.5.1

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static --enable-smime --enable-extra-mimeicons --with-rubrica --localstatedir=/var/lib --without-nm --with-ssl --with-gpgme

find . -name Makefile -type f -exec sed -i 's/-O2/ /g' {} \;

make
sudo make install

================ Final configuration ===================
    Installing into prefix: /usr/local
      Using multithreading: yes
   Enable compile warnings: yes
                Use ESMTP : yes
               HTML widget: webkit
                 Use GNOME: yes
              Use Canberra: no
                 Use GPGME: yes
                  Use LDAP: no
                   Use GSS: no
                Use SQLite: no
                   Use SSL: yes
        Use NetworkManager: no
              Use GtkSpell: no
             Use Libnotify:  >= 0.7
         Use GtkSourceView: no
              Use Compface: no
  Install extra MIME icons: yes
    Configure for Touch UI: no
             GMime version: 2.6
             Use libsecret: no