View Compilation Error

0_0_8557889_18432.c: In function `main':
0_0_8557889_18432.c:38: error: `bool' undeclared (first use in this function)
0_0_8557889_18432.c:38: error: (Each undeclared identifier is reported only once
0_0_8557889_18432.c:38: error: for each function it appears in.)
0_0_8557889_18432.c:38: error: syntax error before "bStartOutput"
0_0_8557889_18432.c:41: error: `bStartOutput' undeclared (first use in this function)
0_0_8557889_18432.c:51: error: `true' undeclared (first use in this function)