gsys /home/mkga # emerge virtualbox

 * IMPORTANT: 3 news items need reading for repository 'gentoo'.
 * Use eselect news read to view new items.


 * IMPORTANT: 4 config files in '/etc/portage' need updating.
 * See the CONFIGURATION FILES and CONFIGURATION FILES UPDATE TOOLS
 * sections of the emerge man page to learn how to update config files.
Calculating dependencies... done!

>>> Verifying ebuild manifests

>>> Running pre-merge checks for app-emulation/virtualbox-6.1.22
 * You have disabled the "python" USE flag. This will only
 * disable the python bindings being installed.

>>> Emerging (1 of 3) app-emulation/virtualbox-modules-6.1.22::gentoo
 * vbox-kernel-module-src-6.1.22.tar.xz BLAKE2B SHA512 size ;-) ...
 * Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Found sources for kernel version:
 *     5.10.27-gentoo-x86_64
 * Checking for suitable kernel configuration options...
>>> Unpacking source...
>>> Unpacking vbox-kernel-module-src-6.1.22.tar.xz to /var/tmp/portage/app-emulation/virtualbox-modules-6.
>>> Source unpacked in /var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work
>>> Preparing source in /var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work ...
ln: failed to create symbolic link 'Module.symvers': File exists
 * Preparing vboxdrv module
make -j6 HOSTCC=x86_64-pc-linux-gnu-gcc CROSS_COMPILE=x86_64-pc-linux-gnu- 'LDFLAGS=-m elf_x86_64' CC=x86_BOSE=1 all
=== Building 'vboxdrv' module ===
make[1]: Entering directory '/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work/vboxdrv'
make V=1 CONFIG_MODULE_SIG= CONFIG_MODULE_SIG_ALL= -C /usr/src/linux M=/var/tmp/portage/app-emulation/virtboxdrv -j8 modules
make[2]: Entering directory '/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work/vboxdrv'
make[2]: warning: -j8 forced in submake: resetting jobserver mode.
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.

make[2]: *** [Makefile:719: include/config/auto.conf] Error 1
make[2]: Leaving directory '/usr/src/linux-5.10.27-gentoo'
make[1]: *** [/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work/vboxdrv/Makefile-footer.gmk:11
make[1]: Leaving directory '/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work/vboxdrv'
make: *** [Makefile:60: vboxdrv] Error 2
 * ERROR: app-emulation/virtualbox-modules-6.1.22::gentoo failed (compile phase):
 *   emake failed
 *
 * If you need support, post the output of `emerge --info '=app-emulation/virtualbox-modules-6.1.22::gento
 * the complete build log and the output of `emerge -pqv '=app-emulation/virtualbox-modules-6.1.22::gentoo
 * The complete build log is located at '/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/temp/bui
 * The ebuild environment file is located at '/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/tem
 * Working directory: '/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work'
 * S: '/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/work'

>>> Failed to emerge app-emulation/virtualbox-modules-6.1.22, Log file:

>>>  '/var/tmp/portage/app-emulation/virtualbox-modules-6.1.22/temp/build.log'

 * Messages for package app-emulation/virtualbox-modules-6.1.22:

 * ERROR: app-emulation/virtualbox-modules-6.1.22::gentoo failed (compile phase):
 *   emake failed
 *
 * I