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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 13:24:56 +0100
User-agent: Thunderbird (Macintosh/20071031)

The reason why I'm asking this is that I wrote some macros that rely on Libtool's magic handling of -R and even though it's clearly stated in the doc/comments/README that Libtool is mandatory, people keep running in troubles because they didn't use Libtool, so I'd like to trigger an error, somehow, to tell them that they did something wrong.

You can use m4_provide_if like this:

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



I didn't count the number of closing brackets.


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