1 files changed, 4 insertions, 2 deletions

diff --git a/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/Makefile.utils b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/Makefile.utils
index 3749b95ad..495601f08 100644
--- a/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/Makefile.utils
+++ b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/Makefile.utils
@@ -10,8 +10,10 @@
 ##
 ## -----------------------------------------------------------------------
 
-INCLUDES = -I. -I../vboxsf
-CFLAGS   = ${INCLUDES}
+INCLUDES = -I. -I../vboxsf -I../vboxsf/include
+MOD_DEFS = -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 \
+           -DIN_SUP_R0 -DVBOX -DVBOX_WITH_HGCM -DIN_MODULE -DIN_GUEST_R0
+CFLAGS   = ${INCLUDES} ${MOD_DEFS}
 LDFLAGS  =
 
 SRCS     = mount.vboxsf.c \