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Fwd: Re: M4 version macro

From: Hans Aberg
Subject: Fwd: Re: M4 version macro
Date: Fri, 17 Jun 2005 20:59:42 +0200

I got the info below, which might be used to stamp parser files with the M4 version. I gather, if __m4_version__ macro is undefined, one defines it to syscmd(`m4 --version').

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Date: Fri, 17 Jun 2005 10:10:43 +0100
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Subject: Re: M4 version macro
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Hallo Hans,

Hans Aberg wrote:
Does M4 have a macro, expanding to its version number (I suspect not)? This might be useful when using M4 to generate parser/lexer files in Bison/Flex, and stamp them with the M4 version used, so it becomes clearly visible in debug reports.

CVS M4 (soon to be m4-2.0) has __m4_version__.

Release versions of GNU m4 could use syscmd(`m4 --version') if PATH is
set reasonably...

Gary V. Vaughan      ())_.  address@hidden,gnu.org}
Research Scientist   ( '/   http://tkd.kicks-ass.net
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