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samba-mirror/lib/tevent/libtevent.m4
Stefan Metzmacher d5f9257108 tevent: define TEVENT_NUM_SIGNALS based on configure checks
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2013-03-01 11:58:49 -08:00

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dnl find the tevent sources. This is meant to work both for
dnl standalone builds, and builds of packages using libtevent
AC_SUBST(teventdir)
if test x"$teventdir" = "x"; then
teventdir=""
teventpaths="$srcdir $srcdir/../lib/tevent $srcdir/tevent $srcdir/../tevent"
for d in $teventpaths; do
if test -f "$d/tevent.c"; then
teventdir="$d"
break;
fi
done
if test x"$teventdir" = "x"; then
AC_MSG_ERROR([cannot find libtevent source in $teventpaths])
fi
fi
TEVENT_OBJ=""
TEVENT_CFLAGS=""
TEVENT_LIBS=""
AC_SUBST(TEVENT_OBJ)
AC_SUBST(TEVENT_CFLAGS)
AC_SUBST(TEVENT_LIBS)
TEVENT_CFLAGS="-I$teventdir"
TEVENT_OBJ="tevent.o tevent_debug.o tevent_util.o"
TEVENT_OBJ="$TEVENT_OBJ tevent_fd.o tevent_timed.o tevent_immediate.o tevent_signal.o"
TEVENT_OBJ="$TEVENT_OBJ tevent_req.o tevent_wakeup.o tevent_queue.o"
TEVENT_OBJ="$TEVENT_OBJ tevent_standard.o tevent_select.o"
TEVENT_OBJ="$TEVENT_OBJ tevent_poll.o"
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
TEVENT_OBJ="$TEVENT_OBJ tevent_epoll.o"
AC_DEFINE(HAVE_EPOLL, 1, [Whether epoll available])
fi
tevent_num_signals_includes="$ac_includes_default
#include <signal.h>
"
tevent_num_signals=64
AC_CHECK_VALUEOF(NSIG, [$tevent_num_signals_includes])
v=$ac_cv_valueof_NSIG
test -n "$v" && test "$v" -gt "$tevent_num_signals" && {
tevent_num_signals=$v
}
AC_CHECK_VALUEOF(_NSIG, [$tevent_num_signals_includes])
v=$ac_cv_valueof__NSIG
test -n "$v" && test "$v" -gt "$tevent_num_signals" && {
tevent_num_signals=$v
}
AC_CHECK_VALUEOF(SIGRTMAX, [$tevent_num_signals_includes])
v=$ac_cv_valueof_SIGRTMAX
test -n "$v" && test "$v" -gt "$tevent_num_signals" && {
tevent_num_signals=$v
}
AC_CHECK_VALUEOF(SIGRTMIN, [$tevent_num_signals_includes])
v=$ac_cv_valueof_SIGRTMIN
test -n "$v" && {
v=`expr $v + $v`
}
test -n "$v" && test "$v" -gt "$tevent_num_signals" && {
tevent_num_signals=$v
}
AC_DEFINE_UNQUOTED(TEVENT_NUM_SIGNALS, $tevent_num_signals, [Max signal number value])
if test x"$VERSIONSCRIPT" != "x"; then
EXPORTSFILE=tevent.exports
AC_SUBST(EXPORTSFILE)
fi