"make check" has runaway memory usage on arm64

[Chris Lamb]

Hi,

> "make check" has runaway memory usage on arm64

We can also see this on the Reproducible Builds project arm64
machines, eg.

  https://tests.reproducible-builds.org/debian/rbuild/unstable/arm64/3dldf_2.0.3+dfsg-5.rbuild.log



Regards,

-- 
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     : :'  :     Chris Lamb
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