Fix mono-sgen paxrat problem

[oholiab]

Fixes build failing without manual intervention due to mono-sgen running as a dependency and failing due to missing PAX flags

Requires https://github.com/subgraph/subgraph-debian-packages/pull/5

[oholiab]

I just tested this with no flags and it built just fine :)

[oholiab]

Sorry, didn't mean to hit the close button -_-

[mamdoh-ahmed]

hi everybody i am start on linux not long while i use fedora 27 i want to build fw daemon and i don't know how please can you help me and i sorry for that