tce-load -i compiletc atkmm-dev pangomm-dev gtk3-dev

wget http://ftp.gnome.org/pub/gnome/sources/gtkmm/3.24/gtkmm-3.24.2.tar.xz

cd gtkmm-3.24.2

CC="gcc -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" ./configure --prefix=/usr/local --disable-static --localstatedir=/var

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

make [31m 39.27s]
sudo make install