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Installing and building the ledger on Linux Redhat

Initial setup

Set environment variables:

export CC=clang
export CXX=clang++

Install dependencies:

yum install -y sudo
yum install -y make
yum install -y cmake
yum install -y libpng-devel
yum install -y zlib-devel
yum install -y openssl-devel
yum install -y python36-devel (replace 36 with your version of Python3)
yum install -y clang
yum install -y epel-release (dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm)
yum install -y python-pip (prb. already installed)
yum install -y git 
pip2 install --upgrade pip
pip3 install --upgrade pip
pip install --upgrade cldoc
yum install -y autoconf
yum install -y automake
yum install -y wget
yum install -y which
yum install -y tree

Download the ledger code

If you need them, here are the Git SSH key generation instructions.

Clone the repository:

cd [working_directory]
git clone https://github.com/fetchai/ledger.git
git checkout release/v0.9.x

Update and initialise submodules from the repository root directory:

cd ledger
git pull
git submodule update --init --recursive

Make sure you have all the submodules:

git submodule status

If any submodules are missing, please check your installation.

Build the ledger

From the ledger directory, follow the steps to build the library:

mkdir build
cd build
cmake ..
make -j constellation

You may have memory issues on make, so limit the number of cores (we chose 4):

make -j 4 constellation

If you want, you can build all the libraries:

make -j 4

For the etch simulator, build the etch library:

make etch