Re: [Qemu-devel] Re: [PATCH v2] Force object directory use

[Peter Maydell]

On 17 November 2010 22:39, Paolo Bonzini <address@hidden> wrote:
> On 11/17/2010 09:08 PM, Blue Swirl wrote:
>> It's not simplification but to unify the build system. Some people
>> make changes to Makefiles and then test their changes without an
>> object directory, these may then break the build for those who use it.
>> This has happened several times already. Hopefully we can avoid those
>> breakages with this change.
>
> It happens very rarely, and the last time it was because the wrong patch was
> committed IIUC.

This time around what happened was that somebody using an
object directory broke the build for those of us who don't use one :-)

> It may be unified but it's pretty much unlike every other
> build system I've ever seen.

If you want another approach you could do what glibc does (IIRC),
which is to just give an error message if you invoke configure in
the source directory suggesting that you run it in a separate build
directory.

-- PMM