| 1 |
root |
1.1 |
dnl this file is part of libev, do not make local modifications |
| 2 |
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dnl http://software.schmorp.de/pkg/libev |
| 3 |
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| 4 |
root |
1.16 |
dnl libev support |
| 5 |
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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 |
root |
1.1 |
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| 7 |
root |
1.12 |
AC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd) |
| 8 |
root |
1.1 |
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| 9 |
root |
1.16 |
AC_CHECK_FUNCS(clock_gettime, [], [ |
| 10 |
root |
1.11 |
dnl on linux, try syscall wrapper first |
| 11 |
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if test $(uname) = Linux; then |
| 12 |
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AC_MSG_CHECKING(for clock_gettime syscall) |
| 13 |
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AC_LINK_IFELSE([AC_LANG_PROGRAM( |
| 14 |
root |
1.13 |
[#include <unistd.h> |
| 15 |
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#include <sys/syscall.h> |
| 16 |
root |
1.11 |
#include <time.h>], |
| 17 |
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[struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)])], |
| 18 |
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[ac_have_clock_syscall=1 |
| 19 |
root |
1.15 |
AC_DEFINE(HAVE_CLOCK_SYSCALL, 1, Define to 1 to use the syscall interface for clock_gettime) |
| 20 |
root |
1.11 |
AC_MSG_RESULT(yes)], |
| 21 |
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[AC_MSG_RESULT(no)]) |
| 22 |
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fi |
| 23 |
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if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then |
| 24 |
root |
1.16 |
AC_CHECK_LIB(rt, clock_gettime) |
| 25 |
root |
1.7 |
unset ac_cv_func_clock_gettime |
| 26 |
root |
1.5 |
AC_CHECK_FUNCS(clock_gettime) |
| 27 |
root |
1.3 |
fi |
| 28 |
root |
1.1 |
]) |
| 29 |
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| 30 |
root |
1.16 |
AC_CHECK_FUNCS(nanosleep, [], [ |
| 31 |
root |
1.8 |
if test -z "$LIBEV_M4_AVOID_LIBRT"; then |
| 32 |
root |
1.16 |
AC_CHECK_LIB(rt, nanosleep) |
| 33 |
root |
1.9 |
unset ac_cv_func_nanosleep |
| 34 |
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AC_CHECK_FUNCS(nanosleep) |
| 35 |
root |
1.8 |
fi |
| 36 |
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]) |
| 37 |
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| 38 |
root |
1.15 |
if test -z "$LIBEV_M4_AVOID_LIBM"; then |
| 39 |
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LIBM=m |
| 40 |
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fi |
| 41 |
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AC_SEARCH_LIBS(floor, $LIBM, [AC_DEFINE(HAVE_FLOOR, 1, Define to 1 if the floor function is available)]) |
| 42 |
root |
1.1 |
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