https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: dev-util/bpftool-6.0.12 adds -Werror flag on its own. Discovered on: amd64 (internal ref: ci) NOTE: -Werror is not recommended for releases and should always be disabled when encountered in build-logs, because there are numerous cases where this breaks without purpose. See also: https://devmanual.gentoo.org/ebuild-writing/common-mistakes/index.html.
Created attachment 844725 [details] build.log build log and emerge --info
Unfortunately it seems that this is common for all kernel tools, they all have -Werror sprinkled all over the place, often multiple times.
ci has reproduced this issue with version 6.1.7 - Updating summary.