diff options
Diffstat (limited to 'deps/libev/libev.m4')
-rw-r--r-- | deps/libev/libev.m4 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/deps/libev/libev.m4 b/deps/libev/libev.m4 new file mode 100644 index 000000000..2ba20eb37 --- /dev/null +++ b/deps/libev/libev.m4 @@ -0,0 +1,40 @@ +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) + + + |