In <[EMAIL PROTECTED]>, on 08/26/2006
   at 09:33 PM, Edward Jaffe <[EMAIL PROTECTED]> said:

>And, I'm astonished at your astonishment!

But Peter is right.

>The technique of testing for the presence of control block fields at
> assembly time e.g., AIF (NOT D'CVTHxxxx) to skip around 
>release-dependent code for source-maintained products has been a 
>standard practice for _decades_

The practice of introducing symbols that will be needed in a future
release has also been a standard practice for decades.

>Assembler H (IEV90)!

The early provision of symbols goes back to Assembler (F).

>If this pervasive and well-established technique becomes unreliable,

It can't *become* unreliable because it was *ALWAYS* unreliable.
BTDTGTS.

-- 
     Shmuel (Seymour J.) Metz, SysProg and JOAT
     ISO position; see <http://patriot.net/~shmuel/resume/brief.html> 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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