THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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In order to do this, you essentially need to modify Makefile.PL, moving some code from the postamble to the constants section. The modified file is posted on this bugzilla report: http://bugzilla.spamassassin.org/show_bug.cgi?id=in bug 2955.
Here's how to do it yourself:
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