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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Announcement: libcoin
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AWESOME!!!

I can compile libcoin at my Ubuntu 11.10... I just need to install:

sudo aptitude install libboost1.46-all-dev

...alongside with another already installed dependencies, and now it works!=
!

Thank you!
Thiago

2012/2/23 Michael Gr=C3=B8nager <gronager@ceptacle.com>

> Hi Martinx,
>
> Another note:
>
> boost 1.42 and openssl 1.0 has a conflict (you will see it when you try t=
o
> compile coinHTTP with that specific combination: sslv2 has been removed
> from openssl, but boost still references it.)
>
> You should do a :
>
> sudo apt-get upgrade libboost-dev-all
>
> to get the 1.46.1 library
>
> /M
>
>
> On 23/02/2012, at 18:31, Martinx - =E3=82=B8=E3=82=A7=E3=83=BC=E3=83=A0=
=E3=82=BA wrote:
>
> > Hi Michael!
> >
> >  Thank you for libcoin! It is a awesome evolution for Bitcoin and for
> the CryptoCurrencies as a hole... Thanks!!!
> >
> >  Anyway, I am unable to compile libcoin under my Ubuntu 11.04. At this
> machine, I have compiled and running Bitcoin (from sources), Namecoin,
> Devcoin, Litecoin, IXcoin and I0coin, all from sources but, when I try to
> compile libcoin, I got:
> >
> > ----
> > user@desk:~/libcoin$ ./configure
> > -- The C compiler identification is GNU
> > -- The CXX compiler identification is GNU
> > -- Check for working C compiler: /usr/bin/gcc
> > -- Check for working C compiler: /usr/bin/gcc -- works
> > -- Detecting C compiler ABI info
> > -- Detecting C compiler ABI info - done
> > -- Check for working CXX compiler: /usr/bin/c++
> > -- Check for working CXX compiler: /usr/bin/c++ -- works
> > -- Detecting CXX compiler ABI info
> > -- Detecting CXX compiler ABI info - done
> > -- Looking for include files CMAKE_HAVE_PTHREAD_H
> > -- Looking for include files CMAKE_HAVE_PTHREAD_H - found
> > -- Looking for pthread_create in pthreads
> > -- Looking for pthread_create in pthreads - not found
> > -- Looking for pthread_create in pthread
> > -- Looking for pthread_create in pthread - found
> > -- Found Threads: TRUE
> > -- Looking for XOpenDisplay in
> /usr/lib/i386-linux-gnu/libX11.so;/usr/lib/i386-linux-gnu/libXext.so
> > -- Looking for XOpenDisplay in
> /usr/lib/i386-linux-gnu/libX11.so;/usr/lib/i386-linux-gnu/libXext.so - fo=
und
> > -- Looking for gethostbyname
> > -- Looking for gethostbyname - found
> > -- Looking for connect
> > -- Looking for connect - found
> > -- Looking for remove
> > -- Looking for remove - found
> > -- Looking for shmat
> > -- Looking for shmat - found
> > -- Looking for IceConnectionNumber in ICE
> > -- Looking for IceConnectionNumber in ICE - found
> > -- Found X11: /usr/lib/i386-linux-gnu/libX11.so
> > -- Boost version: 1.42.0
> > -- Found the following Boost libraries:
> > --   date_time
> > --   regex
> > --   filesystem
> > --   system
> > --   program_options
> > --   thread
> > -- Found OpenSSL: /usr/lib/libssl.so;/usr/lib/libcrypto.so
> > -- Looking for Q_WS_X11
> > -- Looking for Q_WS_X11 - found
> > -- Looking for Q_WS_WIN
> > -- Looking for Q_WS_WIN - not found.
> > -- Looking for Q_WS_QWS
> > -- Looking for Q_WS_QWS - not found.
> > -- Looking for Q_WS_MAC
> > -- Looking for Q_WS_MAC - not found.
> > -- Found Qt-Version 4.7.2 (using /usr/bin/qmake)
> > -- Found wxWidgets: TRUE
> >
> > The build system is configured to install libraries to /usr/local/lib
> > Your applications may not be able to find your installed libraries
> unless you:
> >     set your LD_LIBRARY_PATH (user specific) or
> >     update your ld.so configuration (system wide)
> > You have an ld.so.conf.d directory on your system, so if you wish to
> ensure that
> > applications find the installed libcoin libraries, system wide, you
> could install an
> > libcoin specific ld.so configuration with:
> >     sudo make install_ld_conf
> >
> > -- Configuring done
> > -- Generating done
> > -- Build files have been written to: /home/user/libcoin
> > ----
> >
> >  Now I tried make, without success:
> >
> > ----
> > .....
> > Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&)]+0xf):
> undefined reference to `BN_init'
> > Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&)]+0x1e):
> undefined reference to `BN_copy'
> > Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&)]+0x38):
> undefined reference to `BN_set_negative'
> > Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&)]+0x4f):
> undefined reference to `BN_clear_free'
> > Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&)]+0xd3):
> undefined reference to `BN_clear_free'
> > ../../lib/libcoin.a(Script.o): In function `operator<<(CBigNum const&,
> unsigned int)':
> > Script.cpp:(.text._ZlsRK7CBigNumj[operator<<(CBigNum const&, unsigned
> int)]+0x16): undefined reference to `BN_init'
> > Script.cpp:(.text._ZlsRK7CBigNumj[operator<<(CBigNum const&, unsigned
> int)]+0x2c): undefined reference to `BN_lshift'
> > Script.cpp:(.text._ZlsRK7CBigNumj[operator<<(CBigNum const&, unsigned
> int)]+0xad): undefined reference to `BN_clear_free'
> > ../../lib/libcoin.a(Script.o): In function `operator>>(CBigNum const&,
> unsigned int)':
> > Script.cpp:(.text._ZrsRK7CBigNumj[operator>>(CBigNum const&, unsigned
> int)]+0xf): undefined reference to `BN_init'
> > Script.cpp:(.text._ZrsRK7CBigNumj[operator>>(CBigNum const&, unsigned
> int)]+0x1e): undefined reference to `BN_copy'
> > Script.cpp:(.text._ZrsRK7CBigNumj[operator>>(CBigNum const&, unsigned
> int)]+0x47): undefined reference to `BN_clear_free'
> > Script.cpp:(.text._ZrsRK7CBigNumj[operator>>(CBigNum const&, unsigned
> int)]+0xcb): undefined reference to `BN_clear_free'
> > ../../lib/libcoin.a(Script.o): In function `operator!=3D(CBigNum const&=
,
> CBigNum const&)':
> > Script.cpp:(.text._ZneRK7CBigNumS1_[operator!=3D(CBigNum const&, CBigNu=
m
> const&)]+0x14): undefined reference to `BN_cmp'
> > ../../lib/libcoin.a(Script.o): In function `operator>(CBigNum const&,
> CBigNum const&)':
> > Script.cpp:(.text._ZgtRK7CBigNumS1_[operator>(CBigNum const&, CBigNum
> const&)]+0x14): undefined reference to `BN_cmp'
> > ../../lib/libcoin.a(Script.o): In function `uint256
> Hash<__gnu_cxx::__normal_iterator<unsigned char*, std::vector<unsigned
> char, std::allocator<unsigned char> > >
> >(__gnu_cxx::__normal_iterator<unsigned char*, std::vector<unsigned char,
> std::allocator<unsigned char> > >, __gnu_cxx::__normal_iterator<unsigned
> char*, std::vector<unsigned char, std::allocator<unsigned char> > >)':
> >
> Script.cpp:(.text._Z4HashIN9__gnu_cxx17__normal_iteratorIPhSt6vectorIhSaI=
hEEEEE7uint256T_S8_[uint256
> Hash<__gnu_cxx::__normal_iterator<unsigned char*, std::vector<unsigned
> char, std::allocator<unsigned char> > >
> >(__gnu_cxx::__normal_iterator<unsigned char*, std::vector<unsigned char,
> std::allocator<unsigned char> > >, __gnu_cxx::__normal_iterator<unsigned
> char*, std::vector<unsigned char, std::allocator<unsigned char> >
> >)]+0x6d): undefined reference to `SHA256'
> >
> Script.cpp:(.text._Z4HashIN9__gnu_cxx17__normal_iteratorIPhSt6vectorIhSaI=
hEEEEE7uint256T_S8_[uint256
> Hash<__gnu_cxx::__normal_iterator<unsigned char*, std::vector<unsigned
> char, std::allocator<unsigned char> > >
> >(__gnu_cxx::__normal_iterator<unsigned char*, std::vector<unsigned char,
> std::allocator<unsigned char> > >, __gnu_cxx::__normal_iterator<unsigned
> char*, std::vector<unsigned char, std::allocator<unsigned char> >
> >)]+0xb8): undefined reference to `SHA256'
> > collect2: ld returned 1 exit status
> > make[2]: *** [bin/bitcoind] Error 1
> > make[1]: *** [applications/bitcoind/CMakeFiles/app_bitcoind.dir/all]
> Error 2
> > make: *** [all] Error 2
> > -----
> >
> >  What can I do?!
> >
> > Best,
> > Thiago
> >
> >
> > On 1 February 2012 12:18, Michael Gr=C3=B8nager <gronager@ceptacle.com>
> wrote:
> > Dear Bitcoiners,
> >
> > libcoin is now in a state ready for its first release, which I would
> like to share with you!
> >
> > =3D=3D=3D libcoin is a crypto currency library based on the bitcoin/bit=
coin
> "Satoshi" client. =3D=3D=3D
> >
> > Copenhagen, Denmark - 1st February 2012 Ceptacle announces the release
> of the first version of the crypto currency library "libcoin" based on th=
e
> bitcoin/bitcoin "Satoshi" client.
> >
> > libcoin also maintains a version of bitcoind that is a 100% compatible
> drop-in replacement of the bitcoin/bitcoind client: You can use it on the
> same computer on the same files and you can call it with the same scripts=
.
> And you can easily extend it without touching the basic bitcoin source
> files.
> >
> > The libcoin/bitcoind client downloads the entire block chain 3.5 times
> faster than the bitcoin/bitcoind client. This is less than 90 minutes on =
a
> modern laptop!
> >
> > In libcoin, the Satoshi client code has been completely refactored,
> properly encapsulating classes, removing all globals, moving from threads
> and mutexes to a pure asynchronous approach. Functionalities have been
> divided into logical units and libraries, minimizing dependencies for e.g=
.
> thin clients.
> >
> > libcoin is chain agnostic, all chain (bitcoin, testnet, namecoin,
> litecoin, ...) specific settings are maintained from a single class (Chai=
n)
> and hence experiments with chain settings, mining, security and digital
> currencies for research and educational purposes are easily accessible. S=
ee
> the ponzicoin example for how you define your own chain.
> >
> > The build system of libcoin is based on CMake and supports builds of
> static and dynamic libraries on Linux, Mac OS X, and Windows.
> >
> > The libcoin license is LGPL v. 3. This mean that you can use it in open
> source as well as in commercial projects, but improvements should go back
> into the libcoin library.
> >
> > =3D=3D=3D=3D=3D=3D
> >
> > Read more on libcoin on: http://github.com/ceptacle/libcoin/wiki
> >
> > Join libcoin on twitter: http://twitter.com/libcoin
> >
> > Download "libcoin Satoshi release":
> http://github.com/ceptacle/libcoin/zipball/v0.4.0.1
> >
> > Best regards,
> >
> > Michael Gronager, PhD
> > Director, Ceptacle
> > Jens Juels Gade 33
> > 2100 Copenhagen E
> > Mobile: +45 31 45 14 01
> > E-mail: gronager@ceptacle.com
> > Web: http://www.ceptacle.com/
> >
> >
> >
> -------------------------------------------------------------------------=
-----
> > Keep Your Developer Skills Current with LearnDevNow!
> > The most comprehensive online learning library for Microsoft developers
> > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3=
,
> > Metro Style Apps, more. Free future releases when you subscribe now!
> > http://p.sf.net/sfu/learndevnow-d2d
> > _______________________________________________
> > Bitcoin-development mailing list
> > Bitcoin-development@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/bitcoin-development
> >
>
> Michael Gronager, PhD
> Director, Ceptacle
> Jens Juels Gade 33
> 2100 Copenhagen E
> Mobile: +45 31 45 14 01
> E-mail: gronager@ceptacle.com
> Web: http://www.ceptacle.com/
>
>

--f46d043be25ee33cbd04b9aa084d
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

AWESOME!!!<div><br></div><div>I can compile libcoin at my Ubuntu 11.10... I=
 just need to install:</div><div><br></div><div>sudo aptitude install libbo=
ost1.46-all-dev</div><div><br></div><div>...alongside with another already =
installed dependencies, and now it works!!</div>

<div><br></div><div>Thank you!</div><div>Thiago</div><div><br><div class=3D=
"gmail_quote">2012/2/23 Michael Gr=C3=B8nager <span dir=3D"ltr">&lt;<a href=
=3D"mailto:gronager@ceptacle.com">gronager@ceptacle.com</a>&gt;</span><br><=
blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px=
 #ccc solid;padding-left:1ex">

Hi Martinx,<br>
<br>
Another note:<br>
<br>
boost 1.42 and openssl 1.0 has a conflict (you will see it when you try to =
compile coinHTTP with that specific combination: sslv2 has been removed fro=
m openssl, but boost still references it.)<br>
<br>
You should do a :<br>
<br>
sudo apt-get upgrade libboost-dev-all<br>
<br>
to get the 1.46.1 library<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
/M<br>
</font></span><div class=3D"im HOEnZb"><br>
<br>
On 23/02/2012, at 18:31, Martinx - =E3=82=B8=E3=82=A7=E3=83=BC=E3=83=A0=E3=
=82=BA wrote:<br>
<br>
</div><div class=3D"HOEnZb"><div class=3D"h5">&gt; Hi Michael!<br>
&gt;<br>
&gt; =C2=A0Thank you for libcoin! It is a awesome evolution for Bitcoin and=
 for the CryptoCurrencies as a hole... Thanks!!!<br>
&gt;<br>
&gt; =C2=A0Anyway, I am unable to compile libcoin under my Ubuntu 11.04. At=
 this machine, I have compiled and running Bitcoin (from sources), Namecoin=
, Devcoin, Litecoin, IXcoin and I0coin, all from sources but, when I try to=
 compile libcoin, I got:<br>


&gt;<br>
&gt; ----<br>
&gt; user@desk:~/libcoin$ ./configure<br>
&gt; -- The C compiler identification is GNU<br>
&gt; -- The CXX compiler identification is GNU<br>
&gt; -- Check for working C compiler: /usr/bin/gcc<br>
&gt; -- Check for working C compiler: /usr/bin/gcc -- works<br>
&gt; -- Detecting C compiler ABI info<br>
&gt; -- Detecting C compiler ABI info - done<br>
&gt; -- Check for working CXX compiler: /usr/bin/c++<br>
&gt; -- Check for working CXX compiler: /usr/bin/c++ -- works<br>
&gt; -- Detecting CXX compiler ABI info<br>
&gt; -- Detecting CXX compiler ABI info - done<br>
&gt; -- Looking for include files CMAKE_HAVE_PTHREAD_H<br>
&gt; -- Looking for include files CMAKE_HAVE_PTHREAD_H - found<br>
&gt; -- Looking for pthread_create in pthreads<br>
&gt; -- Looking for pthread_create in pthreads - not found<br>
&gt; -- Looking for pthread_create in pthread<br>
&gt; -- Looking for pthread_create in pthread - found<br>
&gt; -- Found Threads: TRUE<br>
&gt; -- Looking for XOpenDisplay in /usr/lib/i386-linux-gnu/libX11.so;/usr/=
lib/i386-linux-gnu/libXext.so<br>
&gt; -- Looking for XOpenDisplay in /usr/lib/i386-linux-gnu/libX11.so;/usr/=
lib/i386-linux-gnu/libXext.so - found<br>
&gt; -- Looking for gethostbyname<br>
&gt; -- Looking for gethostbyname - found<br>
&gt; -- Looking for connect<br>
&gt; -- Looking for connect - found<br>
&gt; -- Looking for remove<br>
&gt; -- Looking for remove - found<br>
&gt; -- Looking for shmat<br>
&gt; -- Looking for shmat - found<br>
&gt; -- Looking for IceConnectionNumber in ICE<br>
&gt; -- Looking for IceConnectionNumber in ICE - found<br>
&gt; -- Found X11: /usr/lib/i386-linux-gnu/libX11.so<br>
&gt; -- Boost version: 1.42.0<br>
&gt; -- Found the following Boost libraries:<br>
&gt; -- =C2=A0 date_time<br>
&gt; -- =C2=A0 regex<br>
&gt; -- =C2=A0 filesystem<br>
&gt; -- =C2=A0 system<br>
&gt; -- =C2=A0 program_options<br>
&gt; -- =C2=A0 thread<br>
&gt; -- Found OpenSSL: /usr/lib/libssl.so;/usr/lib/libcrypto.so<br>
&gt; -- Looking for Q_WS_X11<br>
&gt; -- Looking for Q_WS_X11 - found<br>
&gt; -- Looking for Q_WS_WIN<br>
&gt; -- Looking for Q_WS_WIN - not found.<br>
&gt; -- Looking for Q_WS_QWS<br>
&gt; -- Looking for Q_WS_QWS - not found.<br>
&gt; -- Looking for Q_WS_MAC<br>
&gt; -- Looking for Q_WS_MAC - not found.<br>
&gt; -- Found Qt-Version 4.7.2 (using /usr/bin/qmake)<br>
&gt; -- Found wxWidgets: TRUE<br>
&gt;<br>
&gt; The build system is configured to install libraries to /usr/local/lib<=
br>
&gt; Your applications may not be able to find your installed libraries unl=
ess you:<br>
&gt; =C2=A0 =C2=A0 set your LD_LIBRARY_PATH (user specific) or<br>
&gt; =C2=A0 =C2=A0 update your ld.so configuration (system wide)<br>
&gt; You have an ld.so.conf.d directory on your system, so if you wish to e=
nsure that<br>
&gt; applications find the installed libcoin libraries, system wide, you co=
uld install an<br>
&gt; libcoin specific ld.so configuration with:<br>
&gt; =C2=A0 =C2=A0 sudo make install_ld_conf<br>
&gt;<br>
&gt; -- Configuring done<br>
&gt; -- Generating done<br>
&gt; -- Build files have been written to: /home/user/libcoin<br>
&gt; ----<br>
&gt;<br>
&gt; =C2=A0Now I tried make, without success:<br>
&gt;<br>
&gt; ----<br>
&gt; .....<br>
&gt; Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&amp;)]+0xf): =
undefined reference to `BN_init&#39;<br>
&gt; Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&amp;)]+0x1e):=
 undefined reference to `BN_copy&#39;<br>
&gt; Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&amp;)]+0x38):=
 undefined reference to `BN_set_negative&#39;<br>
&gt; Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&amp;)]+0x4f):=
 undefined reference to `BN_clear_free&#39;<br>
&gt; Script.cpp:(.text._ZngRK7CBigNum[operator-(CBigNum const&amp;)]+0xd3):=
 undefined reference to `BN_clear_free&#39;<br>
&gt; ../../lib/libcoin.a(Script.o): In function `operator&lt;&lt;(CBigNum c=
onst&amp;, unsigned int)&#39;:<br>
&gt; Script.cpp:(.text._ZlsRK7CBigNumj[operator&lt;&lt;(CBigNum const&amp;,=
 unsigned int)]+0x16): undefined reference to `BN_init&#39;<br>
&gt; Script.cpp:(.text._ZlsRK7CBigNumj[operator&lt;&lt;(CBigNum const&amp;,=
 unsigned int)]+0x2c): undefined reference to `BN_lshift&#39;<br>
&gt; Script.cpp:(.text._ZlsRK7CBigNumj[operator&lt;&lt;(CBigNum const&amp;,=
 unsigned int)]+0xad): undefined reference to `BN_clear_free&#39;<br>
&gt; ../../lib/libcoin.a(Script.o): In function `operator&gt;&gt;(CBigNum c=
onst&amp;, unsigned int)&#39;:<br>
&gt; Script.cpp:(.text._ZrsRK7CBigNumj[operator&gt;&gt;(CBigNum const&amp;,=
 unsigned int)]+0xf): undefined reference to `BN_init&#39;<br>
&gt; Script.cpp:(.text._ZrsRK7CBigNumj[operator&gt;&gt;(CBigNum const&amp;,=
 unsigned int)]+0x1e): undefined reference to `BN_copy&#39;<br>
&gt; Script.cpp:(.text._ZrsRK7CBigNumj[operator&gt;&gt;(CBigNum const&amp;,=
 unsigned int)]+0x47): undefined reference to `BN_clear_free&#39;<br>
&gt; Script.cpp:(.text._ZrsRK7CBigNumj[operator&gt;&gt;(CBigNum const&amp;,=
 unsigned int)]+0xcb): undefined reference to `BN_clear_free&#39;<br>
&gt; ../../lib/libcoin.a(Script.o): In function `operator!=3D(CBigNum const=
&amp;, CBigNum const&amp;)&#39;:<br>
&gt; Script.cpp:(.text._ZneRK7CBigNumS1_[operator!=3D(CBigNum const&amp;, C=
BigNum const&amp;)]+0x14): undefined reference to `BN_cmp&#39;<br>
&gt; ../../lib/libcoin.a(Script.o): In function `operator&gt;(CBigNum const=
&amp;, CBigNum const&amp;)&#39;:<br>
&gt; Script.cpp:(.text._ZgtRK7CBigNumS1_[operator&gt;(CBigNum const&amp;, C=
BigNum const&amp;)]+0x14): undefined reference to `BN_cmp&#39;<br>
&gt; ../../lib/libcoin.a(Script.o): In function `uint256 Hash&lt;__gnu_cxx:=
:__normal_iterator&lt;unsigned char*, std::vector&lt;unsigned char, std::al=
locator&lt;unsigned char&gt; &gt; &gt; &gt;(__gnu_cxx::__normal_iterator&lt=
;unsigned char*, std::vector&lt;unsigned char, std::allocator&lt;unsigned c=
har&gt; &gt; &gt;, __gnu_cxx::__normal_iterator&lt;unsigned char*, std::vec=
tor&lt;unsigned char, std::allocator&lt;unsigned char&gt; &gt; &gt;)&#39;:<=
br>


&gt; Script.cpp:(.text._Z4HashIN9__gnu_cxx17__normal_iteratorIPhSt6vectorIh=
SaIhEEEEE7uint256T_S8_[uint256 Hash&lt;__gnu_cxx::__normal_iterator&lt;unsi=
gned char*, std::vector&lt;unsigned char, std::allocator&lt;unsigned char&g=
t; &gt; &gt; &gt;(__gnu_cxx::__normal_iterator&lt;unsigned char*, std::vect=
or&lt;unsigned char, std::allocator&lt;unsigned char&gt; &gt; &gt;, __gnu_c=
xx::__normal_iterator&lt;unsigned char*, std::vector&lt;unsigned char, std:=
:allocator&lt;unsigned char&gt; &gt; &gt;)]+0x6d): undefined reference to `=
SHA256&#39;<br>


&gt; Script.cpp:(.text._Z4HashIN9__gnu_cxx17__normal_iteratorIPhSt6vectorIh=
SaIhEEEEE7uint256T_S8_[uint256 Hash&lt;__gnu_cxx::__normal_iterator&lt;unsi=
gned char*, std::vector&lt;unsigned char, std::allocator&lt;unsigned char&g=
t; &gt; &gt; &gt;(__gnu_cxx::__normal_iterator&lt;unsigned char*, std::vect=
or&lt;unsigned char, std::allocator&lt;unsigned char&gt; &gt; &gt;, __gnu_c=
xx::__normal_iterator&lt;unsigned char*, std::vector&lt;unsigned char, std:=
:allocator&lt;unsigned char&gt; &gt; &gt;)]+0xb8): undefined reference to `=
SHA256&#39;<br>


&gt; collect2: ld returned 1 exit status<br>
&gt; make[2]: *** [bin/bitcoind] Error 1<br>
&gt; make[1]: *** [applications/bitcoind/CMakeFiles/app_bitcoind.dir/all] E=
rror 2<br>
&gt; make: *** [all] Error 2<br>
&gt; -----<br>
&gt;<br>
&gt; =C2=A0What can I do?!<br>
&gt;<br>
&gt; Best,<br>
&gt; Thiago<br>
&gt;<br>
&gt;<br>
&gt; On 1 February 2012 12:18, Michael Gr=C3=B8nager &lt;<a href=3D"mailto:=
gronager@ceptacle.com">gronager@ceptacle.com</a>&gt; wrote:<br>
&gt; Dear Bitcoiners,<br>
&gt;<br>
&gt; libcoin is now in a state ready for its first release, which I would l=
ike to share with you!<br>
&gt;<br>
&gt; =3D=3D=3D libcoin is a crypto currency library based on the bitcoin/bi=
tcoin &quot;Satoshi&quot; client. =3D=3D=3D<br>
&gt;<br>
&gt; Copenhagen, Denmark - 1st February 2012 Ceptacle announces the release=
 of the first version of the crypto currency library &quot;libcoin&quot; ba=
sed on the bitcoin/bitcoin &quot;Satoshi&quot; client.<br>
&gt;<br>
&gt; libcoin also maintains a version of bitcoind that is a 100% compatible=
 drop-in replacement of the bitcoin/bitcoind client: You can use it on the =
same computer on the same files and you can call it with the same scripts. =
And you can easily extend it without touching the basic bitcoin source file=
s.<br>


&gt;<br>
&gt; The libcoin/bitcoind client downloads the entire block chain 3.5 times=
 faster than the bitcoin/bitcoind client. This is less than 90 minutes on a=
 modern laptop!<br>
&gt;<br>
&gt; In libcoin, the Satoshi client code has been completely refactored, pr=
operly encapsulating classes, removing all globals, moving from threads and=
 mutexes to a pure asynchronous approach. Functionalities have been divided=
 into logical units and libraries, minimizing dependencies for e.g. thin cl=
ients.<br>


&gt;<br>
&gt; libcoin is chain agnostic, all chain (bitcoin, testnet, namecoin, lite=
coin, ...) specific settings are maintained from a single class (Chain) and=
 hence experiments with chain settings, mining, security and digital curren=
cies for research and educational purposes are easily accessible. See the p=
onzicoin example for how you define your own chain.<br>


&gt;<br>
&gt; The build system of libcoin is based on CMake and supports builds of s=
tatic and dynamic libraries on Linux, Mac OS X, and Windows.<br>
&gt;<br>
&gt; The libcoin license is LGPL v. 3. This mean that you can use it in ope=
n source as well as in commercial projects, but improvements should go back=
 into the libcoin library.<br>
&gt;<br>
&gt; =3D=3D=3D=3D=3D=3D<br>
&gt;<br>
&gt; Read more on libcoin on: <a href=3D"http://github.com/ceptacle/libcoin=
/wiki" target=3D"_blank">http://github.com/ceptacle/libcoin/wiki</a><br>
&gt;<br>
&gt; Join libcoin on twitter: <a href=3D"http://twitter.com/libcoin" target=
=3D"_blank">http://twitter.com/libcoin</a><br>
&gt;<br>
&gt; Download &quot;libcoin Satoshi release&quot;: <a href=3D"http://github=
.com/ceptacle/libcoin/zipball/v0.4.0.1" target=3D"_blank">http://github.com=
/ceptacle/libcoin/zipball/v0.4.0.1</a><br>
&gt;<br>
&gt; Best regards,<br>
&gt;<br>
&gt; Michael Gronager, PhD<br>
&gt; Director, Ceptacle<br>
&gt; Jens Juels Gade 33<br>
&gt; 2100 Copenhagen E<br>
&gt; Mobile: <a href=3D"tel:%2B45%2031%2045%2014%2001" value=3D"+4531451401=
">+45 31 45 14 01</a><br>
&gt; E-mail: <a href=3D"mailto:gronager@ceptacle.com">gronager@ceptacle.com=
</a><br>
&gt; Web: <a href=3D"http://www.ceptacle.com/" target=3D"_blank">http://www=
.ceptacle.com/</a><br>
&gt;<br>
&gt;<br>
&gt; ----------------------------------------------------------------------=
--------<br>
&gt; Keep Your Developer Skills Current with LearnDevNow!<br>
&gt; The most comprehensive online learning library for Microsoft developer=
s<br>
&gt; is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC=
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&gt; _______________________________________________<br>
&gt; Bitcoin-development mailing list<br>
&gt; <a href=3D"mailto:Bitcoin-development@lists.sourceforge.net">Bitcoin-d=
evelopment@lists.sourceforge.net</a><br>
&gt; <a href=3D"https://lists.sourceforge.net/lists/listinfo/bitcoin-develo=
pment" target=3D"_blank">https://lists.sourceforge.net/lists/listinfo/bitco=
in-development</a><br>
&gt;<br>
<br>
Michael Gronager, PhD<br>
Director, Ceptacle<br>
Jens Juels Gade 33<br>
2100 Copenhagen E<br>
Mobile: <a href=3D"tel:%2B45%2031%2045%2014%2001" value=3D"+4531451401">+45=
 31 45 14 01</a><br>
E-mail: <a href=3D"mailto:gronager@ceptacle.com">gronager@ceptacle.com</a><=
br>
Web: <a href=3D"http://www.ceptacle.com/" target=3D"_blank">http://www.cept=
acle.com/</a><br>
<br>
</div></div></blockquote></div><br></div>

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