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Date: Wed, 26 Oct 2005 02:24:54 +0400
From: "Andrew P." <infofarmer@gmail.com>
To: FreeBSD Questions <freebsd-questions@freebsd.org>
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Subject: Which version of FreeBSD a binary was compiled for?
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How to tell? Apart from trying to launch it on
different versions without COMPAT* in the
kernel?

One can always carefully examine the output
of ldd, readelf and other such tools, but that
requires much knowledge and a small lab
with all kinds of BSD's set up. Is there a
better way?