Step5 detail

Step5-1

If you don't have or don't need OpenGL, then skip this step.
Otherwise, do
cd tkogl
./configure
or remembering Step4
./configure --prefix=/usr
make
sudo make install
(make check)
cd ..

Step5-2

cd src
./configure
or remembering Step4
./configure --prefix=/usr
make
sudo make install
(make check)
cd ..