Frustrations about splicing

[emily]

@waffle8946

So strictly speaking, cmake goes in depsBuildBuild, ECM goes in nativeBuildInputs.
If cmake is also used to build the actual package, then cmake will also go in nativeBuildInputs.
This duplication is fine, because the two uses of cmake in these lists mean two different things.
Finally, whatever libraries you’re linking against, including those mentioned by ECM, will go in buildInputs.

Oh, so I did make things worse in one respect with https://github.com/NixOS/nixpkgs/pull/329470…

Well, I guess since Qt cross is broken anyway it doesn’t really matter right now.