tce-load -i gtk3-dev intltool vala-dev mpfr-dev gtksourceview-dev libsoup-dev itstool

cd gnome-calculator-3.22.0

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 --localstatedir=/var --disable-static --libexecdir=/usr/local/lib/gnome-calculator

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

make
make install