@ttuegel, thanks for your PR! By analyzing the history of the files in this pull request, we identified @amiddelk, @peterhoeg and @abbradar to be potential reviewers.

@siddharthist Could you try running Dropbox from this PR? The PaX issue should be resolved now.

@ttuegel Testing the build now, will have to nixos-rebuild and reboot to test with grsecurity. Thank you so much for your help!

Build works on non-grsecurity enabled kernel, and running Dropbox works when grsecurity is enabled. Thanks again @ttuegel!

@ttuegel Just out of curiosity, why does this work? Is paxmark part of the stdenv?

Well, it sets some PaX flag so that the memory protections are disabled and Dropbox can run. I don't know how it does that; I was under the impression that requires root permission. I guess paxmark is part of stdenv; to be honest, I just ran grep -R paxmark over nixpkgs and saw that lots of packages were using it without extra dependencies! 😁