Struct default constructor - need some kind of solution for C++ interop

[Ethan Watson via Digitalmars-d]

On Tuesday, 6 September 2016 at 13:44:37 UTC, Ethan Watson wrote:
> Suggestions?

Forgot to mention in OP that I had tried this( void* pArg = null 
); to no avail:

mutex.d(19): Deprecation: constructor mutex.Mutex.this all 
parameters have default arguments, but structs cannot have 
default constructors.

It's deprecated and the constructor doesn't get called. So no 
egregious sploits for me.