s4:lib/events: move to toplevel directory as lib/tevent/

This commit will not compile on its own.

metze

1 files changed, 49 insertions, 0 deletions

diff --git a/lib/tevent/libtevent.m4 b/lib/tevent/libtevent.m4
new file mode 100644
index 00000000000..ed76b03d4f1
--- /dev/null
+++ b/lib/tevent/libtevent.m4
@@ -0,0 +1,49 @@
+dnl find the events sources. This is meant to work both for
+dnl standalone builds, and builds of packages using libevents
+if test x"$eventsdir" = "x"; then
+	eventsdir=""
+	eventspaths="$srcdir $srcdir/../samba4/source/lib/events $srcdir/lib/events $srcdir/events $srcdir/../events"
+	for d in $eventspaths; do
+		if test -f "$d/events.c"; then
+			eventsdir="$d"
+			AC_SUBST(eventsdir)
+			break;
+		fi
+	done
+	if test x"$eventsdir" = "x"; then
+	   AC_MSG_ERROR([cannot find libevents source in $eventspaths])
+	fi
+fi
+
+EVENTS_OBJ="events.o events_select.o events_signal.o events_timed.o events_standard.o events_debug.o events_util.o"
+AC_LIBREPLACE_NETWORK_CHECKS
+
+SMB_ENABLE(EVENTS_EPOLL, NO)
+SMB_ENABLE(EVENTS_AIO, NO)
+AC_CHECK_HEADERS(sys/epoll.h)
+AC_CHECK_FUNCS(epoll_create)
+if test x"$ac_cv_header_sys_epoll_h" = x"yes" -a x"$ac_cv_func_epoll_create" = x"yes"; then
+   EVENTS_OBJ="$EVENTS_OBJ events_epoll.o"
+   SMB_ENABLE(EVENTS_EPOLL,YES)
+   AC_DEFINE(HAVE_EVENTS_EPOLL, 1, [Whether epoll available])
+
+   # check for native Linux AIO interface
+   AC_CHECK_HEADERS(libaio.h)
+   AC_CHECK_LIB_EXT(aio, AIO_LIBS, io_getevents)
+   if test x"$ac_cv_header_libaio_h" = x"yes" -a x"$ac_cv_lib_ext_aio_io_getevents" = x"yes";then
+      EVENTS_OBJ="$EVENTS_OBJ events_aio.o"
+      SMB_ENABLE(EVENTS_AIO,YES)
+      AC_DEFINE(HAVE_LINUX_AIO, 1, [Whether Linux AIO is available])
+   fi
+fi
+
+AC_SUBST(EVENTS_OBJ)
+SMB_EXT_LIB(LIBAIO_LINUX, $AIO_LIBS)
+
+EVENTS_CFLAGS="-I$eventsdir"
+AC_SUBST(EVENTS_CFLAGS)
+
+EVENTS_LIBS="$AIO_LIBS"
+AC_SUBST(EVENTS_LIBS)
+
+