tce-load -i compiletc libusb-dev udev-dev gobject-introspection-dev vala-dev usbutils

https://people.freedesktop.org/~hughsient/releases/libgusb-0.2.9.tar.xz

cd libgusb-0.2.9

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

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

make [0m 6.13s]
sudo make install

                    libgusb 0.2.9
                  ====================

        prefix:                    /usr/local
        datadir:                   ${datarootdir}
        compiler:                  gcc -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe
        cflags:                    -g -O2
        cppflags:                  
        Building unit tests:       yes