svn commit: r193734 - in head: lib/libusb sys/amd64/amd64
sys/i386/i386 sys/i386/xen sys/sys
rwatson at FreeBSD.org
Tue Jun 9 11:06:15 UTC 2009
On Mon, 8 Jun 2009, M. Warner Losh wrote:
> In message: <200906081823.n58INhX8038125 at svn.freebsd.org>
> Ed Schouten <ed at FreeBSD.org> writes:
> : It turns out our compiler in stable/7 can't build this code anymore.
> : Even though my opinion is that those people should just run `make
> : kernel-toolchain' before building a kernel, I am willing to wait and
> : commit this after we've branched stable/8.
> As a matter of policy, the project has always supported a RELENG_X ->
> CURRENT upgrade with a simple buildworld. The issue of building a kernel by
> hand across releases has been targeted as one of those areas that can break,
> but only if there's a really good reason to do so.
> Just FYI to everybody..
As compared to building 7.x kernels on 6.x, we got significantly farther
through the release process before bumping into a problem, FWIW. I certainly
appreciate the ability to short-cut builds by doing them incrementally with
existing toolchains, and while there are good reasons to break that (such as
taking advantage of new syntax to improve the kernel -- for example, C99
structure initialization) my hope is generally to avoid breaking it unless
such a good reason turns up. Usually, in the past, it's been share/mk
incompatibility that's broken the build rather than C syntax, though.
Robert N M Watson
University of Cambridge
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