Whitepaper - Ethereum Classic With Cover

Ethereum Classic Documentation, Release 0.1
These packages are not in the standard repos but can be found using the OpenSUSE build service package search
and YaST 1-Click Install:
• libargtable2-devel
• libv8-3
• v8-devel
If you also have v8 from the chromium repo installed the devel package will default to the 4.x branch which will
not work. Use YaST or zypper to downgrade this package to 3.x
Installing dependencies for Arch Linux Compiling webthree-umbrella on Arch Linux requires dependencies
from both the official repositories and the Arch User Repository (AUR). To install packages from the official
repositories pacman is used. For installation of packages from the AUR, a number of AUR helpers is available.
For this guide, yaourt AUR helper is used.
Installing dependencies
# from official repositories sudo pacman -Sy git base-devel cmake boost crypto++ leveldb llvm miniupnpc
libcl opencl-headers libmicrohttpd qt5-base qt5-webengine
# from AUR yaourt -Sy libjson-rpc-cpp
Compiling the source code During this step, an installation folder for the Ethereum can be specified. Specification
of the folder is optional though. If not given, the binary files will be located in the build folder. However,
for this guide, it is assumed that the Ethereum files will be installed under /opt/eth. The reason for using /opt is
that it makes much easier to delete the Ethereum files later on, as compared to having them installed under, e.g.,
/usr. Also /opt is commonly used to install software that is not managed by packaging systems, such as manually
compiled programs.
# enter webthree-umbrella folder after cloning its github repository
cd webthree-umbrella
# make a build folder and enter into it
mkdir -p build && cd build
# create build files and specify Ethereum installation folder
cmake .. -DCMAKE_INSTALL_PREFIX=/opt/eth
# compile the source code
make
# alternatively it is possible to specify number of compilation threads
# for example to use 4 threads execute make as follows:
# make -j 4
# install the resulting binaries, shared libraries and header files into /opt
sudo make install
After successful compilation and installation, Ethereum binaries can be found in /opt/eth/bin, shared libraries in
/opt/eth/lib, and header files in /opt/eth/include.
Specifying Ethereum libraries path Since Ethereum was installed in /opt/eth, executing its binaries can result
in linker error due to not being able to find the Ethereum shared libraries. To rectify this issue, it is needed to add
the folder containing Ethereum shared libraries into LD_LIBRARY_PATH environmental variable:
# update ~/.bashrc
echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/eth/lib" >> ~/.bashrc
1.2. Ethereum Clients 31