Re: [Oorexx-devel] Mark Hessling's utilities and 4.0

[Rick M. <obj...@gm...>]

For 32-bit implementations, the utilities still have binary
compatibility with 4.0 and will continue to work.  Unfortunately, Mark
chose to take a different approach for moving to moving Regina to
64-bit than was taken with ooRexx.  There are several implications
here:

1)  they old OS/2 & Windows types formally used in the APIs are no
longer available from the ooRexx header files.
2)  if you use the legacy version of the ooRexx header file to compile
code on a 64-bit platform, some fields will have a size mismatch
because the type remappings were not an automatic transformation where
all instances of an old type moved to the same new type.  Mappings
were done by mapping the original intent to the type appropriate to
the job.

For problem 1), this could mostly be fixed for Linux by introducing a
legacy header file that maps the old OS/2 types to the appropriate
replacement types, thus allowing code to compile cleanly.   On
Windows, the situation is considerably more complicated.  Since types
like ULONG are provided directly from the Windows operating system,
we're sort of stuck with what Windows chose to implement.
Unfornately, many of the Windows-defined types remained as 32-bit
values in a 64-bit system, which conflicts with the expanded types
using the real values.

For problem 2), the problem is limited to one-specific API that only
had a definition on the Linux system, and is a feature that I doubt
has very much real usage.

I have no obvious fix for this.  We're not going to revert to the old
mess of a header file we inherited.  We now have one single, common
header file using types that will portable to the future and can be
shared across all of the platforms.  It is unfortunate that Mark has
declared he will not support 4.0 with his utilities, but he's allowed
to make his own decisions for his own projects.

Rick

On Sun, May 24, 2009 at 10:31 AM, Sahananda (Jon) Wolfers
<sah...@wi...> wrote:
> I know from my tests that RexxSQL seems to work under 4.0.  I have not
> tested it thoroughly, but I have seen it write and bring back data for a
> locally hosted mySQL database.
>
> I also know from talking to Mark that he can't compile his utilities for 4.0
>
> I see from bug 2794834  that it is unlikely that this will be fixed.
>
> I guess that means that RexxSql et. al. are not supported for ooRexx 4.0
>
> This would be a showstopper for me adopting 4.0 in production.
>
> I'm not sure what the solution is.
>
> Jon
>
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