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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Announcement: libcoin
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I tried on another 11.10 machine with the normal boost 1.42 and things =
also worked as they should.

However, I noticed a difference between your cmake output and mine:

> -- Found OpenSSL: /usr/lib/libssl.so;/usr/lib/libcrypto.so=20

-- Found OpenSSL: =
/usr/lib/i386-linux-gnu/libssl.so;/usr/lib/i386-linux-gnu/libcrypto.so =
(found version "1..")

Are you sure that the openssl libraries/includes found are the correct =
ones ? cmake finds your openssl libraries at /usr/lib/ which most likely =
will make it think that the includes are at /usr/include. I can see that =
at least X11 stuff is in /usr/lib/x386-linux-gnu like my openssl.

Could there be an issue there ?

SHA256 would normally be found in openssl/sha.h but if that is somehow =
corrupt ?

Cheers,

M

PS: to get more debug output, please try a "make VERBOSE=3D1" That will =
show what g++ flags that are used, and might help us.

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!
>=20
>  Thank you for libcoin! It is a awesome evolution for Bitcoin and for =
the CryptoCurrencies as a hole... Thanks!!!
>=20
>  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:
>=20
> ----
> user@desk:~/libcoin$ ./configure=20
> -- 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=20
> -- 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 - =
found
> -- 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=20
> -- 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=20
>=20
> 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
>=20
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /home/user/libcoin
> ----
>=20
>  Now I tried make, without success:
>=20
> ----
> .....
> 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&, =
CBigNum 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_iteratorIPhSt6vectorIhSaIh=
EEEEE7uint256T_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_iteratorIPhSt6vectorIhSaIh=
EEEEE7uint256T_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
> -----
>=20
>  What can I do?!
>=20
> Best,
> Thiago
>=20
>=20
> On 1 February 2012 12:18, Michael Gr=C3=B8nager =
<gronager@ceptacle.com> wrote:
> Dear Bitcoiners,
>=20
> libcoin is now in a state ready for its first release, which I would =
like to share with you!
>=20
> =3D=3D=3D libcoin is a crypto currency library based on the =
bitcoin/bitcoin "Satoshi" client. =3D=3D=3D
>=20
> Copenhagen, Denmark - 1st February 2012 Ceptacle announces the release =
of the first version of the crypto currency library "libcoin" based on =
the bitcoin/bitcoin "Satoshi" client.
>=20
> 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.
>=20
> 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!
>=20
> 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.
>=20
> libcoin is chain agnostic, all chain (bitcoin, testnet, namecoin, =
litecoin, ...) specific settings are maintained from a single class =
(Chain) and hence experiments with chain settings, mining, security and =
digital currencies for research and educational purposes are easily =
accessible. See the ponzicoin example for how you define your own chain.
>=20
> The build system of libcoin is based on CMake and supports builds of =
static and dynamic libraries on Linux, Mac OS X, and Windows.
>=20
> 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.
>=20
> =3D=3D=3D=3D=3D=3D
>=20
> Read more on libcoin on: http://github.com/ceptacle/libcoin/wiki
>=20
> Join libcoin on twitter: http://twitter.com/libcoin
>=20
> Download "libcoin Satoshi release": =
http://github.com/ceptacle/libcoin/zipball/v0.4.0.1
>=20
> Best regards,
>=20
> 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/
>=20
>=20
> =
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>=20

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/