Bug#945226: gudhi: please lower parallelism everywhere

[Gard Spreemann]

Thank you, Gianfranco. I've made the change in git, and will upload as
soon as the two transitions gudhi is currently part of are over
(python3.8 and cgal_5.0).

 Best,
 Gard

Bug#945226: gudhi: please lower parallelism everywhere

[Gianfranco Costamagna]

Source: gudhi
Version: 3.0.0+dfsg-3
Severity: important

Hello, looks like gudhi was failing in Ubuntu everywhere except i386, the only 
place where parallel builds are disabled.

I disabled them everywhere and now the build looks good.

Can you please consider lowering the parallel threads in order to save some RAM?

This might become an issue in Debian too if gcc starts requiring more ram to 
work
(the build gets kiiled by OOM)

G.