View Compilation Error

200676_0_18842.c: In function `main':
200676_0_18842.c:23: error: `linkenode' undeclared (first use in this function)
200676_0_18842.c:23: error: (Each undeclared identifier is reported only once
200676_0_18842.c:23: error: for each function it appears in.)
200676_0_18842.c:29: error: `pline' undeclared (first use in this function)