ln: failed to create symbolic link 'Module.symvers': File exists
* Preparing 8821cu module
make -j5 HOSTCC=x86_64-pc-linux-gnu-gcc CROSS_COMPILE=x86_64-pc-linux-gnu- 'LDFLAGS=-m elf_x86_64' KERN_DIR=/usr/src/linux ARCH=x86_64 KSRC=/usr/src/linux KERN_VER=5.10.32-calculate O=/usr/src/linux V=1 KBUILD_VERBOSE=1 all
make ARCH=x86_64 CROSS_COMPILE=x86_64-pc-linux-gnu- -C /usr/src/linux M=/var/calculate/tmp/portage/net-wireless/rtl8821cu-20210506/work/rtl8821CU-c2472712fe4c2639183b9a0a6a930248fcff8bf0 modules
make[1]: Entering directory '/usr/src/linux-5.10.32-calculate'
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[1]: *** [Makefile:719: include/config/auto.conf] Error 1
make[1]: Leaving directory '/usr/src/linux-5.10.32-calculate'
make: *** [Makefile:2212: modules] Error 2
* ERROR: net-wireless/rtl8821cu-20210506::calculate failed (compile phase):
* emake failed
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