I noticed this while checking http://hg.mozilla.org/mozilla-central/rev/0cb6d4bc7eae (no bug): Add echo-tier-dirs target, to display tiers' directories. r=bsmedberg Callek) told me: { >> The only reference to tiers is from mozilla/ and our use of tiers in c-c is all imported from mozilla/ anyway (build.mk) > > Then, should we be able to remove the other references to "tier" in rules.mk? (and maybe config.mk??) Probably }

Only comm-central refs are in calendar/ and suite/ Moving this to seamonkey

The build system has been revamped several times since this bug was opened. I don't think any of this applies any more.

(In reply to Philip Chee from comment #2) > The build system has been revamped several times since this bug was opened. > I don't think any of this applies any more. Not obvious to me: make code seems to be duplicated still and add_tier_dir() calls are in m-c only. I haven't followed what happened for quite some time, yet I would like a bit of confirmation about the current status. Thanks.

I'm pretty sure tier's are being removed in the main build system now, I'll defer the proper answer to c#3 to jcranmer

Tiers as originally conceived are basically dead. The use of add_tier_dir in moz.build is basically an anachronism at this point AFAICT. The use of tiers in the makefiles is actually supposed to be in reference to export/compile/libs/tools, aside from rules that are probably dead. For what it's worth, I prefer to keep diffs between comm-central and mozilla-central makefiles minimized as we move to eliminating the c-c build system, so I don't think there's anything valuable here.

(In reply to Joshua Cranmer [:jcranmer] from comment #5) > For what it's worth, I prefer to keep diffs between comm-central and > mozilla-central makefiles minimized as we move to eliminating the c-c build > system, so I don't think there's anything valuable here. Thanks for the details. Agreed. V.Invalid, as reporter.