View Compilation Error

0_0_8173384_12549.c:3: error: syntax error before "ext"
0_0_8173384_12549.c: In function `main':
0_0_8173384_12549.c:39: error: `true' undeclared (first use in this function)
0_0_8173384_12549.c:39: error: (Each undeclared identifier is reported only once
0_0_8173384_12549.c:39: error: for each function it appears in.)