Hi,

I also did a git bisect but on AIX and end up with same "problematic" commit:
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2cca1253c9cc30fc7be3231b478e8b6859ef7600 is first bad commit
commit 2cca1253c9cc30fc7be3231b478e8b6859ef7600
Author: Kenichi Handa <handa@m17n.org>
Date:   Thu Nov 27 08:02:28 2008 +0000

    Set inhibit-load-charset-map to t while preloading
    files.

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Reverting partially this change-set allowed to finish bootstrap and
install on AIX (5.2)
[Attached the partial revert I made]

Cheers,
Pierre
--
>>> horsemen = ['war', 'pestilence', 'famine']
>>> horsemen.append('Powerbuilder')