[Iwao@fedora C541]$ g++ c541.cpp -lglut -lGL
[Iwao@fedora C541]$ ./a.out
^C   
[Iwao@fedora C541]$ cd ../C542
[Iwao@fedora C542]$ g++ c542.cpp -lglut -lGL
[Iwao@fedora C542]$ ./a.out
図形を塗りつぶす
図形を塗りつぶす 頂点指定