gst-element-check.m4

来自「A*算法 A*算法 A*算法 A*算法A*算法A*算法」· M4 代码 · 共 24 行

dnl Perform a check for a GStreamer element using gst-inspect
dnl Thomas Vander Stichele <thomas at apestaart dot org>
dnl Last modification: 25/01/2005

dnl AM_GST_ELEMENT_CHECK(ELEMENT-NAME, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)

AC_DEFUN([AM_GST_ELEMENT_CHECK],
[
  if test "x$GST_INSPECT" == "x"; then
    AC_CHECK_PROG(GST_INSPECT, gst-inspect, gst-inspect, [])
  fi

  if test "x$GST_INSPECT" != "x"; then
    AC_MSG_CHECKING(GStreamer element $1)
    if [ $GST_INSPECT $1 > /dev/null 2> /dev/null ]; then
      AC_MSG_RESULT(found.)
      $2
    else
      AC_MSG_RESULT(not found.)
      $3
    fi
  fi
])