D seems interesting, but...

[Don Clugston]

On 15/10/12 06:42, Jonathan M Davis wrote:
> On Sunday, October 14, 2012 21:39:42 H. S. Teoh wrote:
>> This looks like what happens if you try to use the latest dmd release
>> with an old version of Phobos, perhaps installed along with gdc.
>>
>> Whoever's doing the .deb packaging really should add a versioned
>> Depends: field to debian/control so that it will require installation of
>> the correct version of Phobos, or, at the very least, refuse to install
>> if such is not available.
>
> At this point, it's a bad idea to use any version of druntime or Phobos which
> doesn't match exactly with the version of dmd that you're using. It's not as
> bad as it used to be, but there are still plenty of cases where a language
> change (be it a bug fix or added feature or whatever) makes it so that older
> versions of Phobos won't compile, or the latest Phobos ends up needing the
> latest dmd. I wouldn't advise anyone to use versions of them that don't all
> match.
>
> - Jonathan M Davis
>

I think we should have a version number in druntime which is checked by 
the compiler, and bumped every time an incompatible change is made. That 
way we could reduce the number of messages from frustrated and
bewildered users.