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# Boost.Build

## darwin toolset

## Introduction

Boost.Build's darwin toolset supports the Apple modified GNU GCC command-line tools. Although the underlying tools are GCC this toolset is specifically tailored to account for the various "features" that Apple implemented to work in the Darwin OS Mach kernel.

## Configuration Variables

Because of the already specific nature of this toolset there are no additional configuration variables.

## Toolset-Specific Features

The following `darwin`-specific features can be used in target build requirements or in the `BUILD` variable:

Feature | Values | Default | Semantics
--- | --- | --- | ---
`framework` | (free feature) | N/A | Adds application "Frameworks" to use for linking.
`bundle-loader` | (free feature) | N/A | Specifies the path to the application that will be loading this "bundle". When this is specified, and building a DLL target, a "bundle" version of the target is built instead of the regular shared library version.

Revised 16 November, 2002

Copyright © Dave Abrahams 2002.

Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at www.boost.org/LICENSE_1_0.txt)