/tmp/vbox.0/Makefile.include.header:100: Warning: using /usr/src/linux as the source directory of your Linux kernel. If this is not correct, specify KERN_DIR=<directory> and run Make again.
grep: /usr/src/linux/include/linux/version.h: No such file or directory
make KBUILD_VERBOSE=1 CONFIG_MODULE_SIG= -C /usr/src/linux SUBDIRS=/tmp/vbox.0 SRCROOT=/tmp/vbox.0 modules
test -e include/generated/autoconf.h -a -e include/config/auto.conf || (      \
echo >&2;                     \
echo >&2 "  ERROR: Kernel configuration is invalid.";      \
echo >&2 "         include/generated/autoconf.h or include/config/auto.conf are missing.";\
echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";   \
echo >&2 ;                     \
/bin/false)

  ERROR: Kernel configuration is invalid.
         include/generated/autoconf.h or include/config/auto.conf are missing.
         Run 'make oldconfig && make prepare' on kernel src to fix it.

mkdir -p /tmp/vbox.0/.tmp_versions ; rm -f /tmp/vbox.0/.tmp_versions/*

  WARNING: Symbol version dump ./Module.symvers
           is missing; modules will have no dependencies and modversions.

make -f scripts/Makefile.build obj=/tmp/vbox.0
/tmp/vbox.0/Makefile.include.header:100: Warning: using /usr/src/linux as the source directory of your Linux kernel. If this is not correct, specify KERN_DIR=<directory> and run Make again.
grep: /usr/src/linux/include/linux/version.h: No such file or directory
  gcc -Wp,-MD,/tmp/vbox.0/.VBoxGuest-linux.o.d  -nostdinc -isystem /usr/lib64/gcc/x86_64-suse-linux/4.8/include -I./arch/x86/include -Iarch/x86/include/generated  -Iinclude -I./arch/x86/include/uapi -Iarch/x86/include/generated/uapi -I./include/uapi -Iinclude/generated/uapi -include ./include/linux/kconfig.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -m64 -mno-mmx -mno-sse -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_CRC32=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -fno-delete-null-pointer-checks -O2 -fno-stack-protector -Wno-unused-but-set-variable -fomit-frame-pointer -fno-var-tracking-assignments -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes -DCC_HAVE_ASM_GOTO -include /tmp/vbox.0/include/VBox/VBoxGuestMangling.h -I/usr/src/linux/include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -I/tmp/vbox.0/vboxguest/ -I/tmp/vbox.0/vboxguest/include -I/tmp/vbox.0/vboxguest/r0drv/linux -D__KERNEL__ -DMODULE -DVBOX -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_GUEST -DIN_GUEST_R0 -DIN_MODULE -DRT_WITH_VBOX -DVBGL_VBOXGUEST -DVBOX_WITH_HGCM -DRT_ARCH_AMD64 -DVBOX_WITH_64_BITS_GUESTS  -DMODULE  -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(VBoxGuest_linux)"  -D"KBUILD_MODNAME=KBUILD_STR(vboxguest)" -c -o /tmp/vbox.0/VBoxGuest-linux.o /tmp/vbox.0/VBoxGuest-linux.c
In file included from <command-line>:0:0:
././include/linux/kconfig.h:4:32: fatal error: generated/autoconf.h: No such file or directory
 #include <generated/autoconf.h>
                                ^
compilation terminated.
scripts/Makefile.build:273: recipe for target '/tmp/vbox.0/VBoxGuest-linux.o' failed
make[2]: *** [/tmp/vbox.0/VBoxGuest-linux.o] Error 1
Makefile:1359: recipe for target '_module_/tmp/vbox.0' failed
make[1]: *** [_module_/tmp/vbox.0] Error 2
/tmp/vbox.0/Makefile.include.footer:79: recipe for target 'vboxguest' failed
make: *** [vboxguest] Error 2
Creating user for the Guest Additions.
Creating udev rule for the Guest Additions kernel module.