--- /dev/null
+AC_DEFUN([GST_CHECK_FIONREAD], [
+
+ AC_MSG_CHECKING(for FIONREAD in sys/ioctl.h)
+ AC_CACHE_VAL(_cv_gst_fionread_in_sys_ioctl, [
+ AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/ioctl.h>
+], [
+int x = FIONREAD;
+if ( x )
+ return 0;
+ ], _cv_gst_fionread_in_sys_ioctl="yes",_cv_gst_fionread_in_sys_ioctl="no")
+ ])
+
+ AC_MSG_RESULT($_cv_gst_fionread_in_sys_ioctl)
+
+ if test "$_cv_gst_fionread_in_sys_ioctl" = "yes"; then
+ AC_DEFINE([HAVE_FIONREAD_IN_SYS_IOCTL], 1, [FIONREAD ioctl found in sys/ioclt.h])
+
+ else
+
+ AC_MSG_CHECKING(for FIONREAD in sys/filio.h)
+ AC_CACHE_VAL(_cv_gst_fionread_in_sys_filio, [
+ AC_TRY_COMPILE([
+ #include <sys/types.h>
+ #include <sys/filio.h>
+ ], [
+ int x = FIONREAD;
+ if ( x )
+ return 0;
+ ], _cv_gst_fionread_in_sys_filio="yes",_cv_gst_fionread_in_sys_filio="no")
+ ])
+
+ AC_MSG_RESULT($_cv_gst_fionread_in_sys_filio)
+
+ if test "$_cv_gst_fionread_in_sys_filio" = "yes"; then
+ AC_DEFINE([HAVE_FIONREAD_IN_SYS_FILIO], 1, [FIONREAD ioctl found in sys/filio.h])
+ fi
+
+ fi
+
+])