Host modules build without dkms patch

[Willie]

Using VirtualBox 5.2.8 I cannot get the host modules to build. The 5.0.x modules build fine. It seems the makefile no longer functions correctly on systems without DKMS. System is LFS, GCC 5.3, QT5.10.1, kernel 4.14.29

The errors are below. I've created a patch to fix these issues, I'm not sure if this patch is the correct way to fix it though.

=== Building 'vboxdrv' module ===
make[1]: Entering directory '/mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv'
make V= CONFIG_MODULE_SIG= -C /usr/lib/modules/4.14.29/build SUBDIRS=/mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv SRCROOT=/mnt/data/pl/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv -j4 modules
make[2]: Entering directory '/mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv'
make[2]: warning: -jN forced in submake: disabling jobserver mode.
  CC [M]  /mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv/linux/SUPDrv-linux.o
cc1: fatal error: /mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv/vboxdrv/include/VBox/SUPDrvMangling.h: No such file or directory
compilation terminated.
  CC [M]  /mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv/SUPDrv.o
cc1: fatal error: /mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv/vboxdrv/include/VBox/SUPDrvMangling.h: No such file or directory
compilation terminated.
make[3]: *** [scripts/Makefile.build:329: /mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv/linux/SUPDrv-linux.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: *** [scripts/Makefile.build:329: /mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv/SUPDrv.o] Error 1
make[2]: *** [Makefile:1519: _module_/mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv] Error 2
make[2]: Leaving directory '/usr/lib/modules/4.14.29/build'
make[1]: *** [/mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv/Makefile.include.footer:101: vboxdrv] Error 2
make[1]: Leaving directory '/mnt/data/packages/virtualbox-host-modules/1/vboxhost-5.2.8_OSE/vboxdrv'
make: *** [Makefile:49: all] Error 2

[Willie]

Patch to build host modules without DKMS