Patch for ABCL development versions

[Robert Goldman]

On 11/29/16 Nov 29 -2:19 PM, Mark Evenson wrote:
> I'm unsure of the current ASDF work flow for patch submissions, but I
> guessed that y'all would like [merge requests][57].
> 
> Without this patch, Elias' recent work on UIOP/RUN-PROGRAM won't be
> utilized on any ABCL which is built from development source.
> 
> ABCL uses the convention that development versions start appending
> strings separated via #\- characters to the primary value returned by
> CL:LISP-IMPLEMENTATION-VERSION (e.g. '1.5.0-dev'. Such values cause the
> UIOP/UTILITY:PARSE-VERSION function to return nil, meaning that this is
> not a suitable conditional for whether LAUNCH-PROGRAM is invoked.
> 
> This patch uses the value of UIOP/OS:IMPLEMENTATION-IDENTIFIER to
> identify version. Unknown whether this would work on MKCL/ECL, which
> might simplify the code path here.
> 
> [57]: https://gitlab.common-lisp.net/asdf/asdf/merge_requests/57
> 
> Please let me know what I can do to conform to y'alls current style
> conventions, test coverage, etc. for such a patch submission.  This
> patch is necessary for [my backporting of Elias's work to JDK56][1]
> 
> [1]: http://abcl.org/trac/ticket/422
> 

OK, this has been merged.  I think later it would be nice to make
PARSE-VERSION more permissive, but Faré convinced me it was better to
get the ABCL support in before making a more general solution.

Best,
r