tce-load -i gtk3-dev libgcrypt-dev libtasn1-dev p11-kit-dev gnupg gobject-introspection-dev intltool gtk3-gir vala-dev

cd gcr-3.20.0

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-keyring

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

make
sudo make install

BUILD
  Debug Build:          default (-g, debug output, testable)
  Strict Compilation:   no (quick tests, non-fatal warnings)
  GTK+ Widgets:         yes
  Introspection:        yes
  Vala:                 yes
  Valgrind:             yes
  Test Coverage:        no