Index: /trunk/src/VBox/Additions/linux/Makefile
===================================================================
--- /trunk/src/VBox/Additions/linux/Makefile	(revision 85941)
+++ /trunk/src/VBox/Additions/linux/Makefile	(revision 85942)
@@ -60,11 +60,8 @@
 	fi
 
-vboxvideo: vboxguest
+vboxvideo:
 	+ $(VBOX_QUIET_SH)if [ -d vboxvideo ]; then \
-	    if [ -f vboxguest/Module.symvers ]; then \
-	        cp vboxguest/Module.symvers vboxvideo; \
-	    fi; \
 	    echo "=== Building 'vboxvideo' module ==="; \
-	    $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) KBUILD_EXTRA_SYMBOLS=$(abspath vboxvideo/Module.symvers) -C vboxvideo || exit 1; \
+	    $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) -C vboxvideo || exit 1; \
 	    if [ -f vboxvideo/vboxvideo.ko ]; then \
 	        cp vboxvideo/vboxvideo.ko .; \
Index: /trunk/src/VBox/Additions/linux/drm/Makefile.module.kms
===================================================================
--- /trunk/src/VBox/Additions/linux/drm/Makefile.module.kms	(revision 85941)
+++ /trunk/src/VBox/Additions/linux/drm/Makefile.module.kms	(revision 85942)
@@ -22,10 +22,4 @@
 include $(obj)/Makefile-header.gmk
 VBOXDRM_DIR = $(VBOX_MODULE_SRC_DIR)
-
-# Allow building directly from the subdirectory without assuming the toplevel
-# makefile has done the copying. Not the default use case, but can be handy.
-ifndef KBUILD_EXTRA_SYMBOLS
-KBUILD_EXTRA_SYMBOLS=$(abspath $(VBOXDRM_DIR)/../vboxguest/Module.symvers)
-endif
 
 # We want to build on Linux 3.11 and later and on all EL 7 kernels.