Re: [RFC] UAPI: Check headers by compiling all together as C++

On Wednesday 2018-09-05 18:55, Greg KH wrote:

On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:

quoted

Here's a set of patches that inserts a step into the build process to make
sure that the UAPI headers can all be built together with C++ (if the
compiler being used supports C++).  All but the final patch perform fixups,
including:

Wait, why do we care?  What has recently changed to start to directly
import kernel uapi files into C++ code?

With C++11, C++ has become a much nicer language to use (for userspace, anyway).

And if userspace wants to do this, can't they do the C namespace trick
themselves when they do the import?

The only trick is to use an extra C source file and extensively wrap things.