=> "/opt/pkg/bin/bmake" ["-C", "/Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-arm64/devel/kbuild", "all", "BATCH=1", "DEPENDS_TARGET=/nonexistent"]
===> Building for kbuild-0.1.9998.8.r3127nb5
./kBuild/env.sh: unknown cpu/arch - arm64
*** Error code 1

Stop.
bmake[1]: stopped making "all" in /Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-arm64/devel/kbuild
*** Error code 1

Stop.
bmake: stopped making "all" in /Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-arm64/devel/kbuild