Kir Kolyshkin d8c62c7d0b Makefile: add RUNC_BUILDTAGS, deprecate EXTRA_BUILDTAGS ...

A bit of history. EXTRA_BUILDTAGS was introduced in commit dac417174,
as a quick way to add some extra Go build tags to the runc build.

Later, commit 767bc008 changed Makefile to not get EXTRA_TAGS from the
shell environment, as the name is quite generic and some unrelated
environment variable with that name can affect runc build. While such
change does make sense, it makes it more complicated to pass build tags
in CI and otherwise (see e.g. commit 0e1fe368a).

Moreover, runc build uses some Go build tags by default (via Makefile),
and while it is easy to add more build tags (via EXTRA_BUILDTAGS), in
order to remove some existing tags one has to redefine BUILDTAGS from
scratch, which is not very convenient (again, see commit 0e1fe368a which
gets the current value of BUILDTAGS from the Makefile in order to remove
a single tag).

To handle all of the above, let's do this:
 - implement RUNC_BUILDTAGS, fixing the issue of not-so-unique name;
 - allow to get RUNC_BUILDTAGS from shell environment;
 - implement a feature to remove a build tag from default set by
   prefixing it with "-" (as in RUNC_BUILDTAGS="-seccomp");
 - document all this in README;
 - make CI use the new feature;
 - keep EXTRA_BUILDTAGS for backward compatibility, add a make warning
   and a TODO to remove it for runc 1.6.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

2026-03-18 13:17:17 +08:00

..

ISSUE_TEMPLATE

.github: Improve issue template description

2025-03-24 12:22:07 +01:00

workflows

Makefile: add RUNC_BUILDTAGS, deprecate EXTRA_BUILDTAGS

2026-03-18 13:17:17 +08:00

dependabot.yml

Remove dependabot ignore

2024-03-15 08:38:53 +01:00