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/cvs/libev/libev.m4
Revision: 1.12
Committed: Wed Jan 13 12:44:33 2010 UTC (14 years, 6 months ago) by root
Branch: MAIN
Changes since 1.11: +2 -4 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 dnl this file is part of libev, do not make local modifications
2 dnl http://software.schmorp.de/pkg/libev
3
4 dnl libev support
5 AC_CHECK_HEADERS(sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h)
6
7 AC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd)
8
9 AC_CHECK_FUNC(clock_gettime, [], [
10 dnl on linux, try syscall wrapper first
11 if test $(uname) = Linux; then
12 AC_MSG_CHECKING(for clock_gettime syscall)
13 AC_LINK_IFELSE([AC_LANG_PROGRAM(
14 [#include <syscall.h>
15 #include <time.h>],
16 [struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)])],
17 [ac_have_clock_syscall=1
18 AC_DEFINE(HAVE_CLOCK_SYSCALL, 1, "use syscall interface for clock_gettime")
19 AC_MSG_RESULT(yes)],
20 [AC_MSG_RESULT(no)])
21 fi
22 if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then
23 AC_CHECK_LIB(rt, clock_gettime)
24 unset ac_cv_func_clock_gettime
25 AC_CHECK_FUNCS(clock_gettime)
26 fi
27 ])
28
29 AC_CHECK_FUNC(nanosleep, [], [
30 if test -z "$LIBEV_M4_AVOID_LIBRT"; then
31 AC_CHECK_LIB(rt, nanosleep)
32 unset ac_cv_func_nanosleep
33 AC_CHECK_FUNCS(nanosleep)
34 fi
35 ])
36
37 AC_CHECK_LIB(m, ceil)
38