Remove autogen.sh, the autoreconf program does exactly that.
Update everything for the latest autoconf and automake versions.
- [DH] COPYING
- [DH] INSTALL
- [DH] Makefile.am
- [DH] autogen.sh
- [DH] configure.in
- [DH] m4/Makefile.am
- [DH] m4/Makefile.am.in
- [DH] m4/attribute.m4
- [DH] m4/lzo.m4
- [DH] m4/malloc.m4
- [DH] m4/openssl.m4
- [DH] m4/realloc.m4
- [DH] m4/tuntap.m4
- [DH] m4/zlib.m4