| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 2178.1 | | TLE::D_SMITH | Duane Smith -- DEC C RTL | Mon May 05 1997 22:14 | 8 |
| >
> Can we promise backward compatibility in this environment?
>
We have never promised this type of compatibility. The name of the
game is *upward* compatibility. If an application is to run on
versions V6.2 and V7.0, then it must be linked against shareable images
from a V6.2 system. I've never seen anything different.
|
| 2178.2 | | TLE::REAGAN | All of this chaos makes perfect sense | Tue May 06 1997 13:04 | 10 |
| The versions of the compilers on the production machine aren't
relevant. The RTLs are shipped with OpenVMS, not with the
compilers (in most cases).
Is it different for mixed Pascal/C versus C-only? I think you
are trying to say that but I'm not sure.
Traditionally you link on the oldest system you want to support.
-John
|
| 2178.3 | *upward* and onward - Thanks much | CSC32::D_BUTLER | | Tue May 06 1997 14:14 | 19 |
| >
> <<< Note 2178.2 by TLE::REAGAN "All of this chaos makes perfect sense" >>>
>
> The versions of the compilers on the production machine aren't
> relevant. The RTLs are shipped with OpenVMS, not with the
> compilers (in most cases).
>
> Is it different for mixed Pascal/C versus C-only? I think you
> are trying to say that but I'm not sure.
>
> Traditionally you link on the oldest system you want to support.
>
> -John
Yes the customer claims that it works OK for DECC linked objects. But when
the image is linked with a mixture of C and Pascal it fails.
I just wanted to get backup on this backward compatability issue
I have never heard of our supporting it. Thanks to both responders
I learned something in the process.
|
| 2178.4 | | TLE::REAGAN | All of this chaos makes perfect sense | Tue May 06 1997 17:45 | 8 |
| Odd. I wonder what went wrong? (well, lots of things could go
wrong when moving backwards) But given that adding Pascal to the mix
caused the difference, one might suspect that Pascal has something
to do with it. However, as the Pascal compiler/rtl person, I can't
imagine what it could be... Oh well, perhaps we'll never know. I
certainly don't want to pick up the rock and see whats underneath!
-John
|