bug#30601: [PATCH staging] gnu: ninja: Disable tests on armhf.

[Marius Bakke <mbakke@fastmail.com>]

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Ludovic Courtès <ludo@gnu.org> writes:

> Hi!
>
> Marius Bakke <mbakke@fastmail.com> skribis:
>
>> * gnu/packages/ninja.scm (ninja)[arguments]: Set #:tests? #f on armhf.  Adjust
>> CHECK-PHASE accordingly.
>> ---
>>  gnu/packages/ninja.scm | 20 +++++++++++++++-----
>>  1 file changed, 15 insertions(+), 5 deletions(-)
>>
>> diff --git a/gnu/packages/ninja.scm b/gnu/packages/ninja.scm
>> index adb236484..cff2ac38b 100644
>> --- a/gnu/packages/ninja.scm
>> +++ b/gnu/packages/ninja.scm
>> @@ -42,7 +42,15 @@
>>      (build-system gnu-build-system)
>>      (native-inputs `(("python" ,python-2)))
>>      (arguments
>> -     '(#:phases
>> +     ;; FIXME: On armhf-linux, Subprocess.TestWithLots fails like this:
>> +     ;;   *** Failure in src/subprocess_test.cc:241
>> +     ;;   ExitSuccess == procs[i]->Finish()
>> +     ;; See <https://hydra.gnu.org/build/2515522/nixlog/1/raw>.
>> +     ;; Disable for now.
>
> Sounds reasonable.  Could you also report it upstream?  :-)

Actually, now that I'm more awake, I found the problem.  On most
machines this test is skipped because it requires 1025 open files.
However, on Hydras armhf machines, this limit is apparently higher.

The problem is that the test calls out to /bin/echo.  I was able to
reproduce it on x86_64 simply by raising the softlimit to 4096.

So, I pushed a one-line fix as d0de4c40e24ee52e4382ee2ac82088932ab49099.

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