Both runc and containerd use BUILDTAGS to customize go build-tags.
When building containerd with custom build-tags, runc inherited
those, causing the default to be overwritten, e.g.;
make BUILDTAGS=no_btrfs cri-cni-release
(in script/setup/install-runc)
HEAD is now at 12644e61 VERSION: release 1.0.0~rc93
make[1]: Entering directory '/tmp/tmp.ZJzc2KtI0A/runc'
go build -trimpath "-mod=vendor" "-buildmode=pie" -tags "no_btrfs" -ldflags "-X main.gitCommit="12644e614e25b05da6fd08a38ffa0cfe1903fdec" -X main.version=1.0.0-rc93 " -o runc .
^^^^^^^^^^^^^^^^
This patch brings back the BUILDTAGS make-var in the runc-install
script, which fixates the buildtags to our defaults.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>