tce-load -i compiletc Xorg-7.7-3d-dev

wget https://www.x.org/archive//individual/driver/xf86-video-amdgpu-21.0.0.tar.bz2

cd xf86-video-amdgpu-21.0.0

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local -disable-static --localstatedir=/var --sysconfdir=/etc

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

make [0m 4.60s]
sudo make install

        prefix:              /usr/local
        exec_prefix:         ${prefix}
        libdir:              ${exec_prefix}/lib
        includedir:          ${prefix}/include

        CFLAGS:              -g -O2
        CXXFLAGS:            
        Macros: