Build problem

so i try to build k8s, i notice the entry Makfile content is

build/root/Makefile

run it and report error

Makefile:1: *** missing separator.  Stop.

if i change it to

include build/root/Makefile

it works.something i missing?

OS: mac apple silicon
make version: GNU Make 4.4.1
the entry Makefile kubernetes/Makefile at master · kubernetes/kubernetes · GitHub

-----update-----
make sure your git core.symlinks set to true(be carefull the --global base on you env)

git config --global core.symlinks true  

Makefile is a symlink to build/root/Makefile – did your git checkout corrupt the symlink?

i got it ,thx