1e3a38431SPaul Bohmdnl this file is part of libev, do not make local modifications 2e3a38431SPaul Bohmdnl http://software.schmorp.de/pkg/libev 3e3a38431SPaul Bohm 4e3a38431SPaul Bohmdnl libev support 5e3a38431SPaul BohmAC_CHECK_HEADERS(sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h) 6e3a38431SPaul Bohm 7e3a38431SPaul BohmAC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd) 8e3a38431SPaul Bohm 9e3a38431SPaul BohmAC_CHECK_FUNCS(clock_gettime, [], [ 10e3a38431SPaul Bohm dnl on linux, try syscall wrapper first 11e3a38431SPaul Bohm if test $(uname) = Linux; then 12e3a38431SPaul Bohm AC_MSG_CHECKING(for clock_gettime syscall) 13e3a38431SPaul Bohm AC_LINK_IFELSE([AC_LANG_PROGRAM( 14e3a38431SPaul Bohm [#include <unistd.h> 15e3a38431SPaul Bohm #include <sys/syscall.h> 16e3a38431SPaul Bohm #include <time.h>], 17e3a38431SPaul Bohm [struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)])], 18e3a38431SPaul Bohm [ac_have_clock_syscall=1 19*93823e6cSPaul Bohm AC_DEFINE(HAVE_CLOCK_SYSCALL, 1, Define to 1 to use the syscall interface for clock_gettime) 20e3a38431SPaul Bohm AC_MSG_RESULT(yes)], 21e3a38431SPaul Bohm [AC_MSG_RESULT(no)]) 22e3a38431SPaul Bohm fi 23e3a38431SPaul Bohm if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then 24e3a38431SPaul Bohm AC_CHECK_LIB(rt, clock_gettime) 25e3a38431SPaul Bohm unset ac_cv_func_clock_gettime 26e3a38431SPaul Bohm AC_CHECK_FUNCS(clock_gettime) 27e3a38431SPaul Bohm fi 28e3a38431SPaul Bohm]) 29e3a38431SPaul Bohm 30e3a38431SPaul BohmAC_CHECK_FUNCS(nanosleep, [], [ 31e3a38431SPaul Bohm if test -z "$LIBEV_M4_AVOID_LIBRT"; then 32e3a38431SPaul Bohm AC_CHECK_LIB(rt, nanosleep) 33e3a38431SPaul Bohm unset ac_cv_func_nanosleep 34e3a38431SPaul Bohm AC_CHECK_FUNCS(nanosleep) 35e3a38431SPaul Bohm fi 36e3a38431SPaul Bohm]) 37e3a38431SPaul Bohm 38*93823e6cSPaul Bohmif test -z "$LIBEV_M4_AVOID_LIBM"; then 39*93823e6cSPaul Bohm LIBM=m 40*93823e6cSPaul Bohmfi 41*93823e6cSPaul BohmAC_SEARCH_LIBS(floor, $LIBM, [AC_DEFINE(HAVE_FLOOR, 1, Define to 1 if the floor function is available)]) 42e3a38431SPaul Bohm 43