[patch #6637] New hash table implementations

[Ben Pfaff]

Follow-up Comment #9, patch #6637 (project pspp):

OK, after much testing here's a summary:

* The bug occurs with GCC 4.3
* The bug does not occur with GCC 4.2 or with development snapshots of GCC
4.4.
* The bug manifests in the test program, not in the hmap code.  It has
something to do with optimizing assignments to array elements incorrectly.

Thus, I am proposing the attached patch, which simply warns about the problem
when the test program runs.

(file #16591)
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Additional Item Attachment:

File name: hmap-test-warning.patch        Size:1 KB


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