tce-load -i compiletc glib2-dev libsigc++-dev

http://ftp.acc.umu.se/pub/gnome/sources/glibmm/2.60/glibmm-2.60.0.tar.xz

cd glibmm-2.60.0

CC="gcc -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe" ./configure --prefix=/usr/local --disable-static --localstatedir=/var

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

make [3m 49.05s]
sudo make install