sysv_signal(3) Library Functions Manual sysv_signal(3) sysv_signal - System V (libc -lc) #define _GNU_SOURCE /* feature_test_macros(7) */ #include typedef typeof(void (int)) *sighandler_t; sighandler_t sysv_signal(int signum, sighandler_t handler); sysv_signal() signal(2). sysv_signal() System V : ) ) ) () . sysv_signal() SIG_ERR . signal(2). attributes(7). +------------+------------------------------------+--------------------+ || | | +------------+------------------------------------+--------------------+ |sysv_signal()| | MT-Safe | +------------+------------------------------------+--------------------+ sysv_signal() sigaction(2) . Linux sysv_signal() signal(2) . signal(2) signal(2) . sighandler_t GNU _GNU_SOURCE. . sigaction(2), signal(2), bsd_signal(3), signal(7) 3 . . : . 6.18 8 2026 sysv_signal(3)