- int
- main ()
- {
- static struct timespec ts_sleep;
- static struct timespec ts_remaining;
- static struct sigaction act;
- if (! nanosleep)
- return 1;
- act.sa_handler = check_for_SIGALRM;
- sigemptyset (&act.sa_mask);
- sigaction (SIGALRM, &act, NULL);
- ts_sleep.tv_sec = 0;
- ts_sleep.tv_nsec = 1;
- alarm (1);
- if (nanosleep (&ts_sleep, NULL) != 0)
- return 1;
- ts_sleep.tv_sec = TYPE_MAXIMUM (time_t);
- ts_sleep.tv_nsec = 999999999;
- alarm (1);
- if (nanosleep (&ts_sleep, &ts_remaining) == -1 && errno == EINTR
- && TYPE_MAXIMUM (time_t) - 10 < ts_remaining.tv_sec)
- return 0;
- return 119;
- }]])],
- [gl_cv_func_nanosleep=yes],
- [case $? in dnl (
- 119) gl_cv_func_nanosleep='no (mishandles large arguments)';; dnl (
- *) gl_cv_func_nanosleep=no;;
- esac],
- [gl_cv_func_nanosleep=cross-compiling])
- ])
- if test "$gl_cv_func_nanosleep" = yes; then
- REPLACE_NANOSLEEP=0
- else
- REPLACE_NANOSLEEP=1
- if test "$gl_cv_func_nanosleep" = 'no (mishandles large arguments)'; then
- AC_DEFINE([HAVE_BUG_BIG_NANOSLEEP], [1],
- [Define to 1 if nanosleep mishandles large arguments.])
- else
- for ac_lib in $LIBSOCKET; do
- case " $LIB_NANOSLEEP " in
- *" $ac_lib "*) ;;
- *) LIB_NANOSLEEP="$LIB_NANOSLEEP $ac_lib";;
- esac
- done
- fi
- AC_LIBOBJ([nanosleep])
- gl_PREREQ_NANOSLEEP
- fi