[cmake-developers] C++11 and target_compiler_feature proposal

[Stephen Kelly]

Stephen Kelly wrote:

> I'll try to get a reviewable and first-feature-complete infrastructure
> branch together soon.

Meanwhile, I've been continuing work on the target_compiler_features topic, 
which is for REQUIRED features.

It's mostly feature complete now, but with a few things missing like adding 
-std flags for the correct compiler versions. It includes transitive 
requirement of compiler features, and a generator expression for testing 
whether a target has enabled the feature. It's also missing some unit tests 
etc.

As this is orthogonal to an compilerdetection.h header, which is for 
optional features, I think I can polish this up and get it master soonish. 

Any comments?

Thanks,

Steve.