Bug#907829: p4est: FTBFS on single CPU machines (?)

[Santiago Vila]

On Mon, Sep 03, 2018 at 09:23:54AM +0200, Graham Inggs wrote:
> Hi Santiago
> 
> On 2 September 2018 at 19:21, Santiago Vila <sanvila at debian.org> wrote:
> > My guess is that this is a bug in p4est but it's triggered by a build depends
> > which changed behaviour somewhere between 2017-12-24 (where version 1.1-5
> > still built ok for me in buster) and 2018-06-03 (where it did not anymore).
> 
> Yes, openmpi flipped the default for oversubscription *again*, see #849974.
> 
> Would you please check whether the following change to debian/rules
> fixes it for you?
> 
> --- a/debian/rules
> +++ b/debian/rules
> @@ -3,6 +3,7 @@
>  include /usr/share/dpkg/pkg-info.mk
> 
>  export OMPI_MCA_plm_rsh_agent=/bin/false
> +export OMPI_MCA_rmaps_base_oversubscribe=1
> 
>  %:
>      dh $@
> 

Yes, it fixes it.

Thanks a lot.