/* $OpenXM: OpenXM/src/ox_gsl/mysig.h,v 1.1 2018/06/04 06:28:05 ohara Exp $
 */
int unblock_signal(int sigset[]);
int block_signal(int sigset[]);
int set_signal(int sig,void (*handler)(int m));
void *mysignal(int sig,void (*handler)(int m));