Bug#928424: gcc-8-cross: Does not honor parallel=n properly in DEB_BUILD_OPTIONS

[Santiago Vila <sanvila@unex.es>]

Package: gcc-8-cross
Version: 28

Dear Matthias:

I see this in debian/rules:

  ifeq ($(JOBS),1)
    JOBS := 2
  endif

This was made in commit a4c6cdfc25368c1c86dfd215db99669f93f1f096
but the changelog does not say anything about it.

I believe this is related to the Makefile bug I reported in #924325,
but that will certainly not fix it, just hide it.

More to the point: If we know there is a Makefile bug and we don't
know why it does not show that way, we have no warranty at all that it
will work, it will do so by pure chance.

Thanks.