# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

AC_INIT([net2o], [0.5.6-20171101], [bernd@net2o.de], [net2o], [https://fossil.net2o.de/net2o/reportlist])
AC_PREREQ([2.59])
AC_CONFIG_MACRO_DIR([m4])
AC_USE_SYSTEM_EXTENSIONS
LT_INIT

AC_MSG_CHECKING([for gforth])

#!/bin/bash

echo "This script builds net2o from scratch"

GFORTH=gforth-0.7.9_20171101

if [ "$(uname -o)" = "Cygwin" ]
then
    CONFOPT="--prefix=/usr $*"
else
    CONFOPT="$*"
fi

    init-rng$ $@ r/w create-file throw >r
    rng-key c:key# r@ write-file throw
    r> close-file throw ;

\ Sanity check

Variable check-rng$
$Variable check-old$
s" ~/.checkrng" check-rng$ $!
$10 cells buffer: rngstat-buf

: rngstat ( addr u -- float )
    \G produces a normalized number, gauss distributed around 0
    rngstat-buf $10 cells erase  dup 3 rshift { e }
    bounds ?DO
	1 I c@ 4 rshift cells rngstat-buf + +!

previous block's hash as starting key for the hash calculation, so
that they contribute to the unchangeable chain, and can't be moved to
any other fake chain (they won't verify there).  Furthermore, each
transaction (despite anonymous) adds to the trust value: more
transactions in one block means that it is more trustworthy, because
more people found its way to this branch of BlockChain reality.

Note that the partitioned BlockChain below makes it far more expensive
to fake a chain: You need to generate signatures and activities in all
of them; the fake activities you generate are with the coins you own;
you have no others.  Sanctions for misbehavoir can make sure these
coins are lost; the fake chain is the proof of misbehavior.

Those additional coins could be used to compensate for the loss of the
victim of double spending.

inability to mutual trust.  Or maybe they just have those dollar signs
in the eyes, and fall for the hype?  Who knows.  Proper
decentralization is also a way to create reliable software, so it's
still worth to pursue.

## How to really distribute book-keeping

A distributed database can be replicated or partitioned (or both).
BlockChains as of now are replicated; that's the scaling problem
mentioned in the bullshit bingo sheet above.  They also need to be
partitioned to gain all the benefits of modern distributed databases.

An important design goal for me is to handle massive ammounts of
micropayments, because that's an application where I see a legitime
need for cryptographic payment protection.  Ransomware fees, tax
evasion, and illegal business are probably already handled well by
BitCoin.

All coins have a value, a unit (if you want to keep different kinds of