Bug#1149823: scotch: FTBFS: 81% tests passed, 33 tests failed out of 171

[Drew Parsons]

Good catch, thanks Santiago.
I sometimes forget how limited the makefile syntax is.

Drew

On 2026-10-10 14:58, Santiago Vila wrote:
> On Fri, Oct 09, 2026 at 07:30:35PM +0200, Santiago Vila wrote:
>> Hi. I confirm that doing the change in debian/rules makes dh_auto_test
>> to succeed (I'm testing inside a chroot).
> 
> Hmm, no, that's not true, but I finally found the reason why it did
> not work, and it's quite funny:
> 
> The comment after the variable value makes the variable to be defined
> with trailing spaces, which is confusing for mpiexec.
> 
> The following minimal Makefile shows the effect:
> 
> ----------------------------------------------------
> export PRTE_MCA_mapby=:oversubscribe  # some comment
> 
> all:
> 	mpiexec -n 2 echo hello
> ----------------------------------------------------
> 
> And this is what happens:
> 
> $ make
> mpiexec -n 2 echo hello
> --------------------------------------------------------------------------
> The mapping request contains an unrecognized qualifier:
> 
>   Request: :oversubscribe
> 
> Please check your request and try again. Remember, multiple
> qualifiers must be separated by a colon (':').
> --------------------------------------------------------------------------
> make: *** [Makefile:4: all] Error 29
> 
> 
> I've just made a team upload to fix that.
> 
> Thanks.