./kernel/bpf/btf.c:8251:22: error: call to undeclared function 'btf_relocate_id'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
./kernel/bpf/btf.c:8376:37: error: call to undeclared function 'btf_relocate_id'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
./kernel/bpf/btf.c:8440:17: error: call to undeclared function 'btf_relocate_id'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
./kernel/bpf/btf.c:8529:26: error: call to undeclared function 'btf_relocate_id'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]