Read-only /usr/obj/ no longer kosher?

[NGie Cooper]

On Tue, Aug 25, 2015 at 3:21 PM, Xin Li <delphij at delphij.net> wrote:
> On 08/25/15 14:55, Pawel Jakub Dawidek wrote:
>>> Now that I think of it, it might have been that I did
>>> buildworld/buildkernel before -p1. Then freebsd-update updated
>>> newvers.sh and then I was trying to do installworld.
>>
>> Yes, I can now reproduce it with source updated to -p2.
>
> Yes, that's because freebsd-version.sh is generated from the files (but
> it's not clear to me whether if it's a bug or a feature that 'make
> install' checks if it's up-to-date and decides to regenerate it...).

It's a quirk for sure. If you change the behavior, people will
definitely complain as they will now need to go back and rebuild
everything.

By and large though, recompiling things is really bad. That's I've
seen others do `CC=false CXX=false` when calling installworld.