On Wed, 2 Oct 2019 at 03:49, Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote: > [...] > > Yes, the BPF samples require clang/LLVM with BPF support to build. Any > > suggestion on a good way to address this (missing tools), better than > > the warning above? After the commit 394053f4a4b3 ("kbuild: make single > > targets work more correctly"), it's no longer possible to build > > samples/bpf without support in the samples/Makefile. > > > You can with > > "make M=samples/bpf" > Oh, I didn't know that. Does M= support "output" builds (O=)? I usually just build samples/bpf/ with: $ make V=1 O=/home/foo/build/bleh samples/bpf/ Björn