Re: Bug: "possibly undefined macro: AC_MSG_ERROR"

[Axel Simon]

On Mar 3, 2008, at 23:14, Hans Aberg wrote:
> I tried running aclocal first (on a new darcs download), but it did  
> not help. So the two sequences I found was 'autoreconf -vi' or (I  
> think) autoconf, in each case followed by 'autoreconf -vi'.
>
>   Hans Aberg
>
>
> --- Snippet ----
> # aclocal
>
> # autoreconf -vi
> autoreconf: Entering directory `.'
> autoreconf: configure.ac: not using Gettext
> autoreconf: running: aclocal
> autoreconf: configure.ac: tracing
> autoreconf: configure.ac: not using Libtool
> autoreconf: running: /usr/local/bin/autoconf
> configure.ac:101: error: possibly undefined macro: AC_MSG_ERROR
>       If this token and others are legitimate, please use  
> m4_pattern_allow.
>       See the Autoconf documentation.
> autoreconf: /usr/local/bin/autoconf failed with exit status: 1

Since it's on line 101, it has to be this call:

if test $HC = ghc-not-found; then
 AC_MSG_ERROR([
Could not find GHC!  This is the only supported compiler.
You need GHC 6.4 or later.])
fi

You could join the 'Could not find...' line with the previous line  
and see if the error goes away. The indentation and quoting is  
identical to other macros that are distributed with autoconf/automake.

Axel.