tce-load -i libusb-dev gudev-lib-dev gobject-introspection-dev

cd libgusb-0.1.6

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 --disable-static

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

make
sudo make install

                    libgusb 0.1.6
                  ====================

        prefix:                    /usr/local
        datadir:                   ${datarootdir}
        compiler:                  gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe
        cflags:                    -g -O2
        cppflags:                  
        Building unit tests:       yes
        GUDEV support:             yes