View Compilation Error

0_0_17436858_14101.c:3:1: error: unknown type name 'bool'
 bool sushu(int m)
 ^
0_0_17436858_14101.c: In function 'sushu':
0_0_17436858_14101.c:5:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int i=2;i<=sqrt(m);i++)
    ^
0_0_17436858_14101.c:5:4: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_17436858_14101.c:8:13: error: 'false' undeclared (first use in this function)
      return false;
             ^
0_0_17436858_14101.c:8:13: note: each undeclared identifier is reported only once for each function it appears in
0_0_17436858_14101.c:10:12: error: 'true' undeclared (first use in this function)
     return true;
            ^