futhermore: the conf.log extraction method is no reliable. autoconf
has changed and newer version don't put it there.
furthermore, because of the post_download generation,
the conf.log get crowded by a second autoconf...
They are generated; so actually also add autogen.sh and Makefile.am to help
to generate them :-)
* Makefile.in: Bin.
* aclocal.m4: Bin.
* configure: Bin.
* autogen.sh: New file.
* Makefile.am: New file.