Arch Linux Building

Jam10o · February 2014

Trying to figure it out.
So far most dependencies are available (boost, gmp, crypto++, leveldb, yasm, miniupnpc)
Cryptopp needs to be built from scratch, like in the guide.
Comment if you have figured it out.

Will make a pkgbuild if I can.

accape · February 2014

ethereal seems to require an older version of miniupnpc, so you will probably need to build that yourself as well.

Jam10o · February 2014

Oh fun

thanks for the warning.

accape · February 2014

I have it running now, use miniupnpc version 1.6.2

Jam10o · February 2014

I'm still getting errors installing cryptopp
Let's just say I'm a little rusty...

fabiofederici · February 2014

I have problems with qmake

> "qmake: could not exec '/usr/lib/x86_64-linux-gnu/qt4/bin/qmake': No such file or directory"

> which qmake > "/usr/bin/qmake"

any suggestions?

Jam10o · February 2014

Do you have base-install?

Jam10o · February 2014

*sorry no, qt4

fabiofederici · February 2014

I'm not sure, as I'm pretty new to programming. Happy to get some help

fabiofederici · February 2014

I previously ran "sudo apt-get install qtbase5-dev"
installing qt through the software center now

Jam10o · February 2014

Ahh, oops, I assumed you were on Arch Linux...

no problem. What were you building when you got your error, and are you on https://github.com/ethereum/cpp-ethereum/wiki/Building <this page?

riX · February 2014

where did you find that old version of miniupnpc? I have miniupnpc-1.8.20131209-1 and it doesn't work, getting errors about /cpp-ethereum/libethereum/PeerNetwork.cpp: In constructor ‘eth::UPnP::UPnP()’:
/home/rix/ethereum/cpp-ethereum/libethereum/PeerNetwork.cpp:559:56: error: too few arguments to function ‘void* miniwget(const char*, int*, unsigned int)’
descXML = (char*)miniwget(dev->descURL, &descXMLsize);

which I assume has to do with that..

accape · February 2014

I used this version http://miniupnp.free.fr/files/download.php?file=miniupnpc-1.6.20120509.tar.gz

fabiofederici · February 2014

worked now, thanks for the help.

riX · February 2014

thanks accape, it works

Now onto secp256k1...

Jam10o · February 2014

If you get secp built, mind telling me how? T_T

accape · February 2014

What problems do you have with secp?

arcke · February 2014

I installed this miniupnpc in a custom location. How do you tell cmake to include it instead of the system wide version?

Jam10o · February 2014

Probably haven't set an environment variable or something, but I can't get secp to install to the global include dir... I'm currently looking for it because since when do I have to copy these things on my own T_T

Edit: got it. I'm going to regret this later.

accape · February 2014

arcke, have you tried setting the appropriate CPPFLAGS and LDFLAGS in the shell you're running cmake in?

accape · February 2014

Jam10o you don't need to install secp, see Building.md: Expects secp256k1 directory to be in same path as cpp-ethereum.

riX · February 2014

git clone https://github.com/sipa/secp256k1.git into ethereum-cpp folder, add lines to CMakeLists.txt:
include_directories(${CMAKE_SOURCE_DIR}/secp256k1)
include_directories(${CMAKE_SOURCE_DIR}/secp256k1/include)

Jam10o · February 2014

Got it, cheers.

riX · February 2014

so what about libcrypto? i have installed crypto++-5.6.2-2 but the BUILDING.md talks about this needing to be built into a folder named libcrypto562 in path

arcke · February 2014

accape: yes, it works with the proper flags

accape · February 2014

You need to build cryptopp562 for yourself and have the source folder in the same directory as cpp-ethereum-build and cpp-ethereum and secp256k1

kershy · February 2014

./eth: error while loading shared libraries: libsecp256k1.so: cannot open shared object file: No such file or directory

I followed all the steps in Building.md

riX · February 2014

ok I extracted the crypto++ package from pacman cache into the ethereum folder and included it in the CMakeLists.txt, which worked.

Now I am getting errors about failed tests..
[ 95%] Building CXX object test/CMakeFiles/testeth.dir/dagger.cpp.o
Linking CXX executable testeth
/usr/bin/ld: cannot find -lsecp256k1
collect2: error: ld returned 1 exit status
test/CMakeFiles/testeth.dir/build.make:264: recipe for target 'test/testeth' failed
make[2]: *** [test/testeth] Error 1
CMakeFiles/Makefile2:128: recipe for target 'test/CMakeFiles/testeth.dir/all' failed
make[1]: *** [test/CMakeFiles/testeth.dir/all] Error 2
Makefile:75: recipe for target 'all' failed
make: *** [all] Error 2

Jam10o · February 2014

Same error here. I thought it was my installing secp globally, glad I can count that out..

accape · February 2014

Do you have your secp256k1 source directory in the same directory as cpp-etherum?

kershy · February 2014

> Do you have your secp256k1 source directory in the same directory as cpp-etherum?

yes ..

cpp-ethereum
cpp-ethereum-build
cryptopp562
secp256k1

all in the same directory

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