version: multiple conditions

[bitwise via Digitalmars-d]

What is the rationale for not allowing multiple version conditions?
Example:

version(iOS || Android) {
    pthread_create(...)
}
else version(Win32) {
    CreateThread(...)
}

I wasn't able to find the conversations on this.

I heard rumors in DLearn that Walter was against this, but I'm wondering  
if the sentiment has changed at this point. Is there is any wiggle room  
for at least adding "||" so that code can be shared between platforms?


This is trivial to do in C, C++, and even C#:

#if OS_IOS || OS_ANDROID
   ...
#elif OS_WINDOWS

#endif


In Rust, there is attributes for this:

#[cfg(any(not(unix), all(target_os="macos", target_arch = "powerpc")))]
void something() {

}

I haven't yet seen a solution in D that justifies not having this feature.


Thanks,
  Bit