Can't compile my kernel

[Point2Kelvin]

I'm unsure what caused this, it may have been an emerge --depclean at some point but when I try to recompile, I get the error:

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$ doas make -j9
  DESCEND  objtool
  CALL    scripts/atomic/check-atomics.sh
make[4]: *** No rule to make target '/usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/include/stddef.h', needed by '/usr/src/linux-5.9.2-gentoo/tools/objtool/fixdep.o'.  Stop.
make[3]: *** [Makefile:43: /usr/src/linux-5.9.2-gentoo/tools/objtool/fixdep-in.o] Error 2
make[2]: *** [/usr/src/linux-5.9.2-gentoo/tools/build/Makefile.include:5: fixdep] Error 2
make[1]: *** [Makefile:68: objtool] Error 2
make: *** [Makefile:1886: tools/objtool] Error 2
make: *** Waiting for unfinished jobs....
  CALL    scripts/checksyscalls.sh

I tried updating packages and doing another depclean, but it's still giving me this error, even after a reboot.

[Moderator edit: added [code] tags to preserve output layout. -Hu]

[NeddySeagoon]

Point2Kelvin,

Welcome to Gentoo.

Start out just this once with

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make mrproper

.
That's

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make clean

and then some.

What does make have to say for itself now?

[Point2Kelvin]

Thanks for the response!

This was the output of 'make mrproper'

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$ doas make mrproper                                                                                                    [15:18:39]
  CLEAN   arch/x86/entry/vdso
  CLEAN   arch/x86/kernel/cpu
  CLEAN   arch/x86/kernel
  CLEAN   arch/x86/realmode/rm
  CLEAN   arch/x86/lib
  CLEAN   certs
  CLEAN   drivers/firmware/efi/libstub
  CLEAN   drivers/scsi
  CLEAN   drivers/tty/vt
  CLEAN   drivers/video/logo
  CLEAN   lib/raid6
  CLEAN   lib
  CLEAN   net/wireless
  CLEAN   security/selinux
  CLEAN   usr
  CLEAN   arch/x86/boot/compressed
  CLEAN   arch/x86/boot
  CLEAN   arch/x86/tools
  CLEAN   vmlinux.symvers modules.builtin modules.builtin.modinfo
  CLEAN   scripts/basic
  CLEAN   scripts/kconfig
  CLEAN   scripts/mod
  CLEAN   scripts/selinux/genheaders
  CLEAN   scripts/selinux/mdp
  CLEAN   scripts
  CLEAN   include/config include/generated arch/x86/include/generated .config .config.old .version Module.symvers

After running 'make clean' I tried to run 'make -j9' once again and I get

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$ doas make -j9
***
*** Configuration file ".config" not found!
***
*** Please run some configurator (e.g. "make oldconfig" or
*** "make menuconfig" or "make xconfig").
***
make: *** [Makefile:701: .config] Error 1

I wanted to post this first, but I assume that I should just run one of those suggested commands?

[Moderator edit: added [code] tags to preserve output layout. -Hu]

[NeddySeagoon]

Point2Kelvin,

Oops.

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make mrproper 

removes your .config file too.
I'm sorry about that.
It returns the kernel tree to the state in was in when portage unpacked it.

[Point2Kelvin]

Oh, what do I do about that then? Is it a completely lost cause, or...?

[Point2Kelvin]

Nevermind, I just looked in my 'make menuconfig' and it looks like all of my settings for my kernel are still set. I just saved it as a new .config file and it seems to be compiling just fine so far.

[NeddySeagoon]

Point2Kelvin,

What you have there is the default kernel configuration.
I don't know of anyone who uses that as is.

[Point2Kelvin]

Its definitely not the default, because all of the edits I made are still present. I guess they were still saved somehow.