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From: Richard Stallman <rms@gnu.org>
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Subject: Re: m4 error in bootstrap
Date: Fri, 06 Sep 2002 16:03:32 -0400
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    The problem is that the macros _AC_VERSION_COMPARE and AC_ACVERSION do not
    exist any more in 2.50+, and it is difficult to rewrite the condition so
    that it works in both 2.13 and 2.50+.

I don't see either of those macros in the configure.in file of RC.
Could you show me the code in RC's configure.in that is the problem?