|Subject:||Re: Detecting that AC_PROG_LIBTOOL has been invoked|
|Date:||Fri, 14 Dec 2007 15:03:56 +0100|
|User-agent:||Thunderbird 18.104.22.168 (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?
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