if test x$have_gl = xno; then
  echo ""
  echo "You are missing"
  if test "$ac_cv_header_GL_gl_h" = "no"; then
    echo "    - OpenGL (mesa)"
  fi
  if test "$ac_cv_header_GL_glu_h" = "no"; then
    echo "    - GLU"
  fi
  if test "$ac_cv_header_GL_glut_h" = "no"; then
    echo "    - GLUT"
  fi
  echo "OpenGL support has been disabled."
  echo "Some of the screensavers wont be compiled."
  echo ""
  all_tests=bad
fi