Can't build kernel anymore: amd64 kernel requires linker ifunc support

[Emeric POUPON]

>> Thanks for your help.
>>
>> Actually, I already did all the steps described here:
>> https://www.freebsd.org/doc/handbook/makeworld.html with success.
>> After step 10, I now get this error.
>> I tried to put WITHOUT_LLD_BOOTSTRAP=yes in /etc/src.conf + rebuild
>> everything with no luck.
>>
>>
> Please remove this line from your src.conf, lld is required for building
> kernel since the ifunc support.
> 

I already did all the steps of the handbook without this line, and I finally had the issue I described.
What I told is that adding this line + make buildworld does not solve the kernel building issue.