The D ecosystem in Debian with free-as-in-freedom DMD

[Matthias Klumpp via Digitalmars-d]

On Tuesday, 11 April 2017 at 15:31:46 UTC, David Nadlinger wrote:
> On Tuesday, 11 April 2017 at 12:38:01 UTC, Matthias Klumpp 
> wrote:
>> If you could change the SOVERSION with every one of these 
>> changes, or simply just tie it to the respective Phobos 
>> release, distributions would automatically do the right thing 
>> and compile all D code using Phobos against the new version.
>
> As you mention, this is already done in LDC; not just the 
> Debian packages, but also upstream. The soname will always be 
> `libphobos2-ldc.so.74` or what have you.
>
> (Thinking about it, it should probably include the patch 
> version as well, although we haven't had a situation so far 
> where we would have wanted to release multiple LDC versions for 
> ABI-incompatible patch releases.)

Phobos is versioned properly in both GDC and LDC, and as long as 
that continues, no problems exist at all :-)
https://packages.debian.org/search?suite=stretch&keywords=phobos

This would - as said - also work for other D shared libraries, 
unless the D ABI in general breaks or someone tries to build a 
program with GDC and uses a library that was built with LDC or 
DMD (or any other possible compiler combination).