installation_guide.md

Installation Guide

This document describes how to build and install the JetsonGPIO from the source code.

0. Prerequisites

To build JetsonGPIO from the source code, the following prerequisites are needed:

• git (for cloning the source code from GitHub)
• CMake (3.2 or higher)
• A C++ compiler that supports C++11 (ex> g++, clang, etc)
• Build automation tools (ex> GNU Make, Ninja, etc)

1. Clone the repository.

git clone https://github.com/pjueon/JetsonGPIO

2. Make build directory and change directory to it.

cd JetsonGPIO
mkdir build && cd build

3. Configure the cmake

cmake .. [OPTIONS]

Option	Default value	Description
-DCMAKE_INSTALL_PREFIX=	/usr/local	Installation path
-DBUILD_EXAMPLES=	ON	Build example codes in samples
-DJETSON_GPIO_POST_INSTALL=	ON	Run the post-install script after installation to set user permissions. If you set this OFF, you must run your application as root to use JetsonGPIO.

4. Build and Install the library

sudo cmake --build . --target install

Compiling the Samples

You can add cmake option -DBUILD_EXAMPLES=ON to build example codes in samples. Assuming you are in build directory:

cmake .. -DBUILD_EXAMPLES=ON
cmake --build . --target examples 

You can find the compiled results in build/samples.