diff -r 2b7e2db31d81 -r 084256be3658 targets/Xenomai/plc_Xenomai_noretain.c
--- a/targets/Xenomai/plc_Xenomai_noretain.c	Mon Jan 15 14:43:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,28 +0,0 @@
-int CheckRetainBuffer(void)
-{
-	return 1;
-}
-
-void ValidateRetainBuffer(void)
-{
-}
-
-void InValidateRetainBuffer(void)
-{
-}
-
-void Retain(unsigned int offset, unsigned int count, void *p)
-{
-}
-
-void Remind(unsigned int offset, unsigned int count, void *p)
-{
-}
-
-void CleanupRetain(void)
-{
-}
-
-void InitRetain(void)
-{
-}