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RC1 on AIX - Some Anti-results

From: Christopher Browne <cbbrowne(at)libertyrms(dot)info>
To: pgsql-hackers(at)postgresql(dot)org
Subject: RC1 on AIX - Some Anti-results
Date: 2003-11-04 17:32:29
Message-ID: 6065i011le.fsf_-_@dev6.int.libertyrms.info (view raw or flat)
Thread:
Lists: pgsql-hackers
peter_e(at)gmx(dot)net (Peter Eisentraut) writes:
> Christopher Browne writes:
>
>> bash-2.05a$ uname -a
>> AIX ibm-db 1 5 000CD13A4C00
>
> We already have a report for AIX.  Were you trying to indicate that this
> is a different variant thereof?

Actually, after some more work, there's an anomaly when compiling RC1
with VisualAge C.  (I'm not sure if it bit earlier 7.4 releases; this
is the first time I have tried 7.4 with VAC/VACPP.  There were no
issues when I compiled 7.3.4 with VAC/VACPP.)

'CC=/usr/vac/bin/xlc'

bash-2.05a$  more src/test/regress/regression.diffs 
*** ./expected/geometry.out     Fri Oct 31 22:07:07 2003
--- ./results/geometry.out      Tue Nov  4 13:09:02 2003
***************
*** 117,123 ****
          | (5.1,34.5) | [(1,2),(3,4)]                 | (3,4)
          | (-5,-12)   | [(1,2),(3,4)]                 | (1,2)
          | (10,10)    | [(1,2),(3,4)]                 | (3,4)
!         | (0,0)      | [(0,0),(6,6)]                 | (-0,0)
          | (-10,0)    | [(0,0),(6,6)]                 | (0,0)
          | (-3,4)     | [(0,0),(6,6)]                 | (0.5,0.5)
          | (5.1,34.5) | [(0,0),(6,6)]                 | (6,6)
--- 117,123 ----
          | (5.1,34.5) | [(1,2),(3,4)]                 | (3,4)
          | (-5,-12)   | [(1,2),(3,4)]                 | (1,2)
          | (10,10)    | [(1,2),(3,4)]                 | (3,4)
!         | (0,0)      | [(0,0),(6,6)]                 | (0,0)
          | (-10,0)    | [(0,0),(6,6)]                 | (0,0)
          | (-3,4)     | [(0,0),(6,6)]                 | (0.5,0.5)
          | (5.1,34.5) | [(0,0),(6,6)]                 | (6,6)

======================================================================

So long as we're not expecting integrability of anything, I'm game for
-0 to be treated as mostly-equivalent to 0.

With VisualAge C++ *'CC=/usr/vacpp/bin/xlc'), I see the very same
result as with VAC.

This _seems_ a cosmetic difference, or am I way wrong?
-- 
select 'cbbrowne' || '@' || 'libertyrms.info';
<http://dev6.int.libertyrms.com/>
Christopher Browne
(416) 646 3304 x124 (land)

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