FYI my experience with D' version

[torhu]

On 28.07.2012 22:55, Adam D. Ruppe wrote:
> After some experience, I've come to the conclusion that
> using D's version() with custom things is usually a mistake.
> Not always - I think it is still good for platform like tweaks,
> version(X86) or version(Windows), or even version(Custom_Library),
> (note, it is often smart to put an "else static assert(0)" at the
> end of platform version lists, so it doesn't pass silently on new
> one)
>
> But using it to enable or disable particular named features or
> other kind of custom configuration things is a mistake. Every
> time I've done it for that, I've gone back and changed it.
>
>
> The reason is it is too easy to get it wrong:
>
> module a:
> version = Foo;
>
> module b:
> import a;
> version(Foo) { this doesn't actually execute }

version is good for global options that you set with -version on the 
command line.  And can also be used internally in a module, but doesn't 
work across modules.  But it seems you have discovered this the hard way 
already.

I think there was a discussion about this a few years ago, Walter did it 
this way on purpose.  Can't remember the details, though.