wrong type: struct: expected maybe define or function: sigaltstack
typedef struct sigaltstack stack_t; 

wrong type: struct: expected maybe define or function: sigaltstack
struct sigaltstack { void *ss_sp; int ss_flags; size_t ss_size; }; 

pollution: sighold
int sighold(int); 

pollution: sigignore
int sigignore(int); 

pollution: siginterrupt
int siginterrupt(int, int); 

pollution: sigpause
int sigpause(int); 

pollution: sigrelse
int sigrelse(int); 

pollution: sigset
void (*sigset(int, void (*)(int)))(int); 

pollution: asctime_r
char *asctime_r (const struct tm *restrict, char *restrict); 

pollution: ctime_r
char *ctime_r (const time_t *, char *); 

pollution: POLL_MSG
#define POLL_MSG 3

pollution: POLL_ERR
#define POLL_ERR 4

pollution: POLL_OUT
#define POLL_OUT 2

pollution: POLL_HUP
#define POLL_HUP 6

pollution: POLL_PRI
#define POLL_PRI 5

pollution: POLL_IN
#define POLL_IN 1