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Re: Detecting that AC_PROG_LIBTOOL has been invoked


From: Paolo Bonzini
Subject: Re: Detecting that AC_PROG_LIBTOOL has been invoked
Date: Fri, 14 Dec 2007 15:03:56 +0100
User-agent: Thunderbird 2.0.0.9 (Macintosh/20071031)


m4_define([m4_provided], [
m4_provide_if([AC_PROG_LIBTOOL], [], [
m4_provide_if([LT_INIT], [],
              [m4_warn([syntax], [Libtool required by $1])])])])])

...

m4_provided([MY_MACRO_NAME])

I didn't count the number of closing brackets.


What is the m4_provide_if? I didn't find it in the manual of autoconf and m4.

It's in m4sugar.

Anyways, does this guarantee me that the user did INVOKE the give macros, not merely that they exist?

Yes.

Paolo




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