Re: From VERDIX to GNAT

["Harry Overs" <hovers@dera.gov.uk>]

I have done this on SGI, though there was a little more help available.
SGI produced bridge packages that replicated VERDIX ones.

However, your best approach is not to go for a GNAT version first off.
Depending on what you have already, and whether you have to maintain a
running system.

Its best to find the units that are not compileable/portable. Then fix these
in your Verdix build.

That is, get the state of your HP-UX software such that it is fully
portable.
Then move this over to GNAT HP-UX.
So at this stage you should have a build the will build under Verdix or Gnat
under HP-UX.
That way you can test and verify correctness of the software.

If you can get it to compile and run under GNAT HP-UX then there should be
only minor problems to solve in the linux gnat build.

Once you've done all this, then it would be good to look at the code as a
whole and take advantages of Ada 95 stuff.



However, depending on the Verdix and other stuff you use, it may not be
possible to keep a compatible Verdix and Gnat build.


If you mail the specific packages being used and how they are being used, we
can see if there are Ada 83, or 95 ways of doing these.
I have not found anything that was not possible to do purely in Ada 95 yet.

"stephane" <stephane.reiniche@steria.fr> wrote in message
news:200081-162646-12143@foorum.com...
> I have to evaluate the conversion of a large project from VERDIX/HP-UX to
GNAT/Linux. My main problem seems to be how to replace VERDIX libraries by
GNAT ones. I haven&#8217;t found any clue along this news group, can anybody
help me?
>
> TIA
>
> Stephane.
>
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