| 1 | dnl this file is part of libev, do not make local modifications |
1 | dnl this file is part of libev, do not make local modifications |
| 2 | dnl http://software.schmorp.de/pkg/libev |
2 | dnl http://software.schmorp.de/pkg/libev |
| 3 | |
3 | |
| 4 | dnl libev support |
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) |
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 | |
6 | |
| 7 | AC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd) |
7 | AC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd) |
| 8 | |
8 | |
| 9 | AC_CHECK_FUNCS(clock_gettime, [], [ |
9 | AC_CHECK_FUNCS(clock_gettime, [], [ |
| 10 | dnl on linux, try syscall wrapper first |
10 | dnl on linux, try syscall wrapper first |
| 11 | if test $(uname) = Linux; then |
11 | if test $(uname) = Linux; then |
| 12 | AC_MSG_CHECKING(for clock_gettime syscall) |
12 | AC_MSG_CHECKING(for clock_gettime syscall) |
| 13 | AC_LINK_IFELSE([AC_LANG_PROGRAM( |
13 | AC_LINK_IFELSE([AC_LANG_PROGRAM( |
| 14 | [#include <unistd.h> |
14 | [#include <unistd.h> |
| … | |
… | |
| 19 | AC_DEFINE(HAVE_CLOCK_SYSCALL, 1, Define to 1 to use the syscall interface for clock_gettime) |
19 | AC_DEFINE(HAVE_CLOCK_SYSCALL, 1, Define to 1 to use the syscall interface for clock_gettime) |
| 20 | AC_MSG_RESULT(yes)], |
20 | AC_MSG_RESULT(yes)], |
| 21 | [AC_MSG_RESULT(no)]) |
21 | [AC_MSG_RESULT(no)]) |
| 22 | fi |
22 | fi |
| 23 | if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then |
23 | if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then |
| 24 | AC_CHECK_LIB(rt, clock_gettime) |
24 | AC_CHECK_LIB(rt, clock_gettime) |
| 25 | unset ac_cv_func_clock_gettime |
25 | unset ac_cv_func_clock_gettime |
| 26 | AC_CHECK_FUNCS(clock_gettime) |
26 | AC_CHECK_FUNCS(clock_gettime) |
| 27 | fi |
27 | fi |
| 28 | ]) |
28 | ]) |
| 29 | |
29 | |
| 30 | AC_CHECK_FUNCS(nanosleep, [], [ |
30 | AC_CHECK_FUNCS(nanosleep, [], [ |
| 31 | if test -z "$LIBEV_M4_AVOID_LIBRT"; then |
31 | if test -z "$LIBEV_M4_AVOID_LIBRT"; then |
| 32 | AC_CHECK_LIB(rt, nanosleep) |
32 | AC_CHECK_LIB(rt, nanosleep) |
| 33 | unset ac_cv_func_nanosleep |
33 | unset ac_cv_func_nanosleep |
| 34 | AC_CHECK_FUNCS(nanosleep) |
34 | AC_CHECK_FUNCS(nanosleep) |
| 35 | fi |
35 | fi |
| 36 | ]) |
36 | ]) |
| 37 | |
37 | |
