Index: /trunk/src/VBox/HostDrivers/Support/linux/Makefile
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/linux/Makefile	(revision 19937)
+++ /trunk/src/VBox/HostDrivers/Support/linux/Makefile	(revision 19938)
@@ -153,5 +153,5 @@
   endif
   # check if versions match -- works only for later 2.6 kernels
-  VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) kernelrelease 2> /dev/null || true)
+  VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) --no-print-directory kernelrelease 2> /dev/null || true)
   ifneq ($(VBOX_KERN_VER),)
    ifneq ($(VBOX_KERN_VER),$(shell uname -r))
Index: /trunk/src/VBox/HostDrivers/VBoxNetAdp/linux/Makefile
===================================================================
--- /trunk/src/VBox/HostDrivers/VBoxNetAdp/linux/Makefile	(revision 19937)
+++ /trunk/src/VBox/HostDrivers/VBoxNetAdp/linux/Makefile	(revision 19938)
@@ -143,5 +143,5 @@
   endif
   # check if versions match -- works only for later 2.6 kernels
-  VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) kernelrelease 2> /dev/null || true)
+  VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) --no-print-directory kernelrelease 2> /dev/null || true)
   ifneq ($(VBOX_KERN_VER),)
    ifneq ($(VBOX_KERN_VER),$(shell uname -r))
Index: /trunk/src/VBox/HostDrivers/VBoxNetFlt/linux/Makefile
===================================================================
--- /trunk/src/VBox/HostDrivers/VBoxNetFlt/linux/Makefile	(revision 19937)
+++ /trunk/src/VBox/HostDrivers/VBoxNetFlt/linux/Makefile	(revision 19938)
@@ -146,5 +146,5 @@
   endif
   # check if versions match -- works only for later 2.6 kernels
-  VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) kernelrelease 2> /dev/null || true)
+  VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) --no-print-directory kernelrelease 2> /dev/null || true)
   ifneq ($(VBOX_KERN_VER),)
    ifneq ($(VBOX_KERN_VER),$(shell uname -r))