# build-essential Cookbook
[![Cookbook Version](http://img.shields.io/cookbook/v/build-essential.svg)][cookbook] [![Build Status](http://img.shields.io/travis/chef-cookbooks/build-essential.svg)][travis]

Installs packages required for compiling C software from source. Use this cookbook if you wish to compile C programs, or install RubyGems with native extensions.

## Requirements
### Platforms
- Debian/Ubuntu
- RHEL/CentOS/Scientific/Amazon/Oracle
- openSUSE
- SmartOS
- Fedora
- Mac OS X
- FreeBSD

### Chef
- Chef 11+

### Cookbooks
- Suggests pkgutil for Solaris based platforms


**Note for Debian platform family:** On Debian platform-family systems, it is recommended that `apt-get update` be run, to ensure that the package cache is updated. It's not in the scope of this cookbook to do that, as it can [create a duplicate resource](https://tickets.chef.io/browse/CHEF-3694). We recommend using the [apt](https://supermarket.chef.io/cookbooks/apt) cookbook to do this.

**Note for OmniOS**: Currently, OmniOS's Ruby package is built with GCC 4.6.3, and the path is hardcoded, as the gcc binaries are not installed in the default $PATH. This means that in order to install RubyGems into the "system" Ruby, one must install `developer/gcc46`. [An issue](https://github.com/omniti-labs/omnios-build/issues/19) is open upstream w/ OmniOS to rebuild the Ruby package with GCC 4.7.2.

## Attributes

Attribute                                 | Default                      | Description
----------------------------------------- | :--------------------------: | ---------------------------------
`node['build-essential']['compile_time']` | `false`                      | Execute resources at compile time
`node['build-essential']['msys']['path']` | `#{ENV['SYSTEMDRIVE']\\msys` | Destination for msys (Windows only)

## Usage
Include the build-essential recipe in your run list:

```sh
knife node run_list add NODE "recipe[build-essential::default]"
```

or add the build-essential recipe as a dependency and include it from inside another cookbook:

```ruby
include_recipe 'build-essential::default'
```

### Gems with C extensions
For RubyGems that include native C extensions you wish to use with Chef, you should do the following.
- Set the `compile_time` attribute to true in your wrapper cookbook or role:

  ```ruby
   # Wrapper attribute
   default['build-essential']['compile_time'] = true
  ```

  ```ruby
   # Role
   default_attributes(
     'build-essential' => {
       'compile_time' => true
     }
   )
  ```

- Ensure that the C libraries, which include files and other assorted "dev"

  type packages, are installed in the compile phase after the build-essential

  recipe is executed. For example:

  ```ruby
   include_recipe 'build-essential::default'

   package('mypackage-devel') { action :nothing }.run_action(:install)
  ```

- Use the `chef_gem` resource in your recipe to install the gem with the native

  extension:

  ```ruby
   chef_gem 'gem-with-native-extension'
  ```

## License & Authors
**Author:** Cookbook Engineering Team ([cookbooks@chef.io](mailto:cookbooks@chef.io))

**Copyright:** 2009-2015, Chef Software, Inc.

```
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
```

[cookbook]: https://supermarket.chef.io/cookbooks/build-essential
[travis]: http://travis-ci.org/chef-cookbooks/build-essential