inquery about "GPL with commercial exception"

[IOhannes m zmölnig (Debian/GNU)]

i'm currently thinking about packaging "linuxsampler", which has a
somewhat abominable license, which they call "GPL with commercial
exception" [1].

however, it is unclear whether this license allows us to distribute the
software in "non-free", or whether the contradictory nature renders the
entire license void (and thus un-distributable by us).


i haven't contacted upstream yet, but i am under the impression that
they won't change the "commercial exception" (they have been defending
it since 2002).
i will however contact them to ask them for at least an alternate
license that would fit their needs (e.g. prohibit commercial use) but
would also allow us to distribute it (in non-free).
any suggestions about which license i should suggest?

(no i don't like this idea very much either; i'm just trying to be
realistic).

gmsdr
IOhannes



[1] https://www.linuxsampler.org/downloads.html#exception

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