Fix pynn-brainscales build 2nd try

• This should fix the error about an ambiguous template instantiation for struct halco::common::detail::limits<halco::hicann_dls::vx::v1::SynapseOnSynapseRow, void> which isn't triggered on newer g++s. We dropped support for old v1 hardware, this was planned anyways.
  • side effect: we build fewer targets ⇒ faster build
• add --keep build flag to keep building after the initial fail ⇒ let's try to find all problems in one go.

changed the description

changed title from Fix pynn-brainscales build #2 to Fix pynn-brainscales build 2nd try

merged

mentioned in commit 2d7de3b3

@elmath Thx

@emuller it failed:

https://gitlab.ebrains.eu/technical-coordination/project-internal/devops/platform/ebrains-spack-builds/-/jobs/27616

spack-build-out.txt

mentioned in commit 64127cc8

Thx, and this looks very promising — only two slightly weird linker errors for building tests for the embedded processors that basically only check the size of "empty" programs.

mentioned in merge request !106 (merged)