Hi, this issue is already fixed in the upstream by this commit: https://github.com/dynup/kpatch/commit/586feb40fe116b70d3ac752359706c3e1fafe4ea
$ git clone https://github.com/dynup/kpatch/ $ cd kpatch $ git checkout ab5e1290bb94231d7925384db01ed62eeecb7511 # one commit before this issue is fixed $ make # causes the same error as this report $ git checkout 586feb40fe116b70d3ac752359706c3e1fafe4ea $ make # build works with no errors or warnings Regards, Soramichi -- Soramichi Akiyama <akiy...@m.soramichi.jp>