| dnl this file is part of libev, do not make local modifications |
| dnl http://software.schmorp.de/pkg/libev |
| |
| dnl libev support |
| AC_CHECK_HEADERS(sys/inotify.h sys/epoll.h sys/event.h sys/queue.h port.h poll.h sys/select.h sys/eventfd.h) |
| |
| AC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd) |
| |
| AC_CHECK_FUNC(clock_gettime, [], [ |
| dnl on linux, try syscall wrapper first |
| if test $(uname) = Linux; then |
| AC_MSG_CHECKING(for clock_gettime syscall) |
| AC_LINK_IFELSE([AC_LANG_PROGRAM( |
| [#include <syscall.h> |
| #include <time.h>], |
| [struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)])], |
| [ac_have_clock_syscall=1 |
| AC_DEFINE(HAVE_CLOCK_SYSCALL, 1, "use syscall interface for clock_gettime") |
| AC_MSG_RESULT(yes)], |
| [AC_MSG_RESULT(no)]) |
| fi |
| if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then |
| AC_CHECK_LIB(rt, clock_gettime) |
| unset ac_cv_func_clock_gettime |
| AC_CHECK_FUNCS(clock_gettime) |
| fi |
| ]) |
| |
| AC_CHECK_FUNC(nanosleep, [], [ |
| if test -z "$LIBEV_M4_AVOID_LIBRT"; then |
| AC_CHECK_LIB(rt, nanosleep) |
| unset ac_cv_func_nanosleep |
| AC_CHECK_FUNCS(nanosleep) |
| fi |
| ]) |
| |
| AC_CHECK_LIB(m, ceil) |
| |
| |
| |
