[swfmill] Impossible to compile from sources

[Ralf Fuest]

This error was caused by an error in autogen.sh, wich I fixed in the
svn. But this wasn't causing any problems during the build process and
only showed the error message.

Ralf

> so I went into /usr/share/ and linked it to the 
> /opt/local/share/libtool/ which shut up that error.
> 
> So now I am down to trying to fix this header error:
> + autoheader
> autoheader: error: AC_CONFIG_HEADERS not found in configure.ac