797    GLfloat xx, yy, zz, xy, yz, zx, xs, ys, zs, one_c, s, c;  in _math_matrix_rotate()  local
933       one_c = 1.0F - c;  in _math_matrix_rotate()
936       M(0,0) = (one_c * xx) + c;  in _math_matrix_rotate()
937       M(0,1) = (one_c * xy) - zs;  in _math_matrix_rotate()
938       M(0,2) = (one_c * zx) + ys;  in _math_matrix_rotate()
941       M(1,0) = (one_c * xy) + zs;  in _math_matrix_rotate()
942       M(1,1) = (one_c * yy) + c;  in _math_matrix_rotate()
943       M(1,2) = (one_c * yz) - xs;  in _math_matrix_rotate()
946       M(2,0) = (one_c * zx) - ys;  in _math_matrix_rotate()
947       M(2,1) = (one_c * yz) + xs;  in _math_matrix_rotate()
948       M(2,2) = (one_c * zz) + c;  in _math_matrix_rotate()