tce-load -i compiletc libfilezilla-dev wxWidgets-dev gnutls3.6-dev xdg-utils gettext

cd filezilla-3.18.0

CC="gcc -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -march=i486 -mtune=i686 -Os -pipe" ./configure --prefix=/usr/local --disable-static --localstatedir=/var --with-pugixml=builtin --without-dbus

[-lto, -fno-exceptions fail]

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

make [2m 59.20s]
sudo make install

filezilla < 3.10 use wxgtk, which is too old for std=c++11 needed by filezilla
configure: error: libgnutls 3.1.12 greater was not found. You can get it from http://gnutls.org/