[hashcash] hashcash-1.13 released

linux: http://www.hashcash.org/binaries/rpms/

windows: http://www.hashcash.org/binaries/win32/

source: http://www.hashcash.org/source/

This gives some new features:

- ability to select core with -O <core>
- -v now displays the core
- new option -P shows progress during minting

- you can use the -e option with -p to override the expiry given at
spend time.  (Prompted by a comment from Atom).

also a couple of bug fixes:

- grace period was not applied to double-spend db.  I think this could
allow people to double-spend in the time period after the resulting
premature purging and before expiry (which is the grace period)


And some cool cross-compiler stuff (not directly related to using
hashcash software, just related to building it):

I now have a mingw cross compiler.  Amazing .. so I can build windows
.exes .dlls etc.  I had to use wine and a free link.exe from microsoft
(used with /lib option to function as lib.exe) to be able to convert a
hashcash.dll + hashcash.def into a hashcash.lib.  It seems there is no
other way to do it which is a bit crappy.

Anyway this means my deploy script is once more fully automated: just
type "make dist" and it builds everything for fedora, and now windows.

Adam

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