Heads up: Problems with parallel make
Mon Feb 20 19:45:04 GMT 2023
On 2/20/2023 2:12 PM, Marco Atzeri via Cygwin-apps wrote:
> On 20.02.2023 18:34, Marco Atzeri wrote:
>> On 20.02.2023 18:14, Ken Brown via Cygwin-apps wrote:
>>> On 2/20/2023 12:00 PM, Achim Gratz via Cygwin-apps wrote:
>>>> Ken Brown via Cygwin-apps writes:
>>>>> Thanks, Marco. As expected, that fixes the problem for my test case
>>>>> (building TeX Live). Obviously it would be better if the make
>>>>> developers would provide a configure option to use a pipe for the
>>>>> jobserver, but this is a good workaround if they don't.
>>>> Does it actually do a parallel build? I've quickly tested a cmake
>>>> project with it and it completely serializes the build. Reverting to
>>>> 4.4 resolves that problem.
> uploaded as test 188.8.131.52-1
> following message is still present while missing in 4.4-1
>> make: warning: jobserver unavailable: using -j1. Add '+' to parent
>> make rule.
> and I do not see clear evidence of parallelism like in 4.4-1
>>> It does for my build of TeX Live. I just tried 'make -j13 check',
>>> and I saw many make processes and many sh processes running at once.
>>> [But I'm currently testing a self-built make 184.108.40.206.]
> How are you configuring your build ?
Just a plain vanilla build, no configure options.
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