dovecot - Sep 2010 - autogen.sh fails

autogen.sh fails on FreeBSD 8.1
m4 1.4.15
autoconf 2.67

Here is the error message:

libtoolize: Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.in and
libtoolize: rerunning libtoolize, to keep the correct libtool macros
in-tree.
libtoolize: Consider adding `-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
configure:20543: error: possibly undefined macro: AS_MESSAGE_LOG_FDdnl
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.

Cheers,

Olivier

On 15.9.2010, at 0.17, interfaSys s?rl wrote:
> configure:20543: error: possibly undefined macro: AS_MESSAGE_LOG_FDdnl
>      If this token and others are legitimate, please use m4_pattern_allow.
>      See the Autoconf documentation.
There's no such thing in Dovecot's configure.in. AS_MESSAGE_LOG_FD seems
to be used by libtool.m4. And that error message looks like there's a
missing space between that and "dnl". My guess: your libtool.m4 is
broken.