gcc 5.4.0

[hammy]

Same requirements as per gcc4.8.2 thread.

Patch is here:

https://github.com/danielhams/didbs/blob/master/packages/gcc5/gcc5_4_0.sgidevfixes.patch

Edit: Updated above with link to the latest version of this patch at github

Why the multiple gcc versions? If/when we get issues, it's useful to see how far back the bug goes, then hopefully we can bisect to where it actually comes from to fix it.