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c-ext-workshop's Introduction

Building C Extensions Workshop

Goal

The goal of this workshop is to learn how to bind C libraries into Ruby land. At the workshop, we will create an image processing library.

Requirements

  • A UNIX based System (Linux or OS X)
  • A compiler:
    • On OS X, install Xcode and the Command Line Interface (see this guide)
    • On Linux, use your package manager to install build-essentials.
  • Ruby installed from source (you're good if you use RVM or rbenv)
  • GraphicsMagick
    • On OS X, use Homebrew to install it: brew install graphicsmagick
    • On Linux, use your package manager to install graphicsmagick. Don't forget the development libraries too.

How to know if you're ready

Ruby

git clone [email protected]:andremedeiros/rubyconf.git
cd rubyconf
bundle
rake

GraphicsMagick

pkg-config GraphicsMagickWand --libs

If you get no errors running these commands you're ready to go. If not, get in touch with me before the conference at @superdealloc so that we can get you ready to go!

Other prerequisites

None whatsoever. We'll cover some C basics for those who don't know the language along the way.

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