Re: [Qemu-devel] [PULL 0/3] Usb 20170929 patches

[Thomas Huth]

On 04.10.2017 10:43, Gerd Hoffmann wrote:
>   Hi,
> 
>> This fails to build from clean (x86-64 Linux host):
>>
>> make[1]: *** No rule to make target '../hw/usb/host-stub.o', needed
>> by
>> 'qemu-system-microblaze'. Stop.
>>
>> (and similar for other targets).
> 
> /me looks puzzled.
> 
> There is a "hw/usb/host-stub.c" file in the repo, so I fail so see why
> make thinks it can't build the object file ...
> 
> Also it works fine in my testing, including a full build of all targets
> (some with and some without usb support).

Ah, deja vu. I think you've now run into the problem that I had with my
patch, too - see:

 https://lists.gnu.org/archive/html/qemu-devel/2017-09/msg01875.html
 https://lists.gnu.org/archive/html/qemu-devel/2017-09/msg02082.html

I think this is a race condition when building with "make -j" in
parallel. Just add a line like this and you should be fine:

common-obj-$(CONFIG_ALL) += host-stub.o

 Thomas