(Re)move autotools generated files from the repository.

Ref: http://lists.gnu.org/archive/html/emacs-devel/2011-03/msg00225.html

* autogen/: New directory, to be excluded from releases.
* autogen/copy_autogen, autogen/update_autogen: New scripts.
* autogen/README: New file.
* autogen/aclocal.m4, autogen/config.in, autogen/configure:
* autogen/Makefile.in: Add auto-updated generated files.

* autogen.sh: No longer a no-op, now it tests for autotools
and runs them as necessary.

* configure.in: Defaule maintainer-mode to on.

* aclocal.m4, configure, lib/Makefile.in: Remove files.

* src/config.in: Remove file.

* INSTALL.BZR, admin/make-tarball.txt: Update instructions.

1 files changed, 14 insertions, 0 deletions

diff --git a/autogen/README b/autogen/README
new file mode 100644
index 00000000000..267ae129959
--- /dev/null
+++ b/autogen/README
@@ -0,0 +1,14 @@
+This directory contains some pre-built generated files.
+Most people do not need to use these files - instead you should
+generate them yourself using eg `autogen.sh'.
+
+File:        Destination:  Created by:
+configure    ../           autoconf
+config.in    ../src        autoconf      * also used by MSDOS bzr build
+aclocal.m4   ../           aclocal
+Makefile.in  ../lib        automake
+
+There are also some scripts:
+
+copy_autogen    - copy pre-built generated files into place
+update_autogen  - regenerate generated files (for maintainers)