Re: [Qemu-devel] [PATCH] Makefile: disable parallel build with dtc

[Peter Maydell]

On 4 July 2013 09:06, Michael S. Tsirkin <address@hidden> wrote:
> Sometimes I get this error when building with -j 4:
> ar: two different operation options specified
> make[1]: *** [libfdt/libfdt.a] Error 1
> make: *** [subdir-dtc] Error 2
>
> dtc make does not seem to support parallel make.
> Force non-parallel build to fix this.

So, this is the second time somebody's reported this, and
I think it would be better to try to figure out what's
going on. Can you report what the actual ar command is
when run with V=1 ?

Also, can you confirm that you haven't got an environment
that sets ARFLAGS to something weird (including "") ?

thanks
-- PMM