View Compilation Error

0_0_5267954_31521.c: In function `main':
0_0_5267954_31521.c:45: error: `bool' undeclared (first use in this function)
0_0_5267954_31521.c:45: error: (Each undeclared identifier is reported only once
0_0_5267954_31521.c:45: error: for each function it appears in.)
0_0_5267954_31521.c:45: error: syntax error before "bStartOutput"
0_0_5267954_31521.c:49: error: `bStartOutput' undeclared (first use in this function)
0_0_5267954_31521.c:54: error: `true' undeclared (first use in this function)