lib/tevent/libtevent.m4

   1 dnl find the tevent sources. This is meant to work both for
   2 dnl standalone builds, and builds of packages using libtevent
   3
   4 AC_SUBST(teventdir)
   5
   6 if test x"$teventdir" = "x"; then
   7         teventdir=""
   8         teventpaths="$srcdir $srcdir/../lib/tevent $srcdir/tevent $srcdir/../tevent"
   9         for d in $teventpaths; do
  10                 if test -f "$d/tevent.c"; then
  11                         teventdir="$d"
  12                         break;
  13                 fi
  14         done
  15         if test x"$teventdir" = "x"; then
  16            AC_MSG_ERROR([cannot find libtevent source in $teventpaths])
  17         fi
  18 fi
  19
  20 TEVENT_OBJ=""
  21 TEVENT_CFLAGS=""
  22 TEVENT_LIBS=""
  23 AC_SUBST(TEVENT_OBJ)
  24 AC_SUBST(TEVENT_CFLAGS)
  25 AC_SUBST(TEVENT_LIBS)
  26
  27 TEVENT_CFLAGS="-I$teventdir"
  28
  29 TEVENT_OBJ="tevent.o tevent_fd.o tevent_timed.o tevent_signal.o tevent_debug.o tevent_util.o"
  30 TEVENT_OBJ="$TEVENT_OBJ tevent_standard.o tevent_select.o"
  31
  32 tevent_cv_aio_support=no
  33 AC_CHECK_HEADERS(sys/epoll.h)
  34 AC_CHECK_FUNCS(epoll_create)
  35 if test x"$ac_cv_header_sys_epoll_h" = x"yes" -a x"$ac_cv_func_epoll_create" = x"yes"; then
  36    TEVENT_OBJ="$TEVENT_OBJ tevent_epoll.o"
  37    AC_DEFINE(HAVE_EPOLL, 1, [Whether epoll available])
  38
  39    # check for native Linux AIO interface
  40    AC_CHECK_HEADERS(libaio.h)
  41    AC_CHECK_LIB_EXT(aio, TEVENT_LIBS, io_getevents)
  42    if test x"$ac_cv_header_libaio_h" = x"yes" -a x"$ac_cv_lib_ext_aio_io_getevents" = x"yes";then
  43       TEVENT_OBJ="$TEVENT_OBJ tevent_aio.o"
  44       tevent_cv_aio_support=yes
  45       AC_DEFINE(HAVE_LINUX_AIO, 1, [Whether Linux AIO is available])
  46    fi
  47 fi
  48