<commit_before># AOSP Support Library Contribution Guide
## Accepted Types of Contributions
* Bug fixes (needs a corresponding bug report in b.android.com)
* Each bug fix is expected to come with tests
* Fixing spelling errors
* Updating documentation
* Adding new tests to the area that is not currently covered by tests

We **are not** currently accepting new modules, features, or behavior changes.

## Checking Out the Code
Follow the [“Downloading the Source”](https://source.android.com/source/downloading.html) guide to install and set up `repo` tool, but instead of running the listed `repo` commands to initialize the repository, run the folowing:

    repo init -u https://android.googlesource.com/platform/manifest -b ub-supportlib-master

Now your repository is set to pull only what you need for building and running support library. Download the code (and grab a coffee while we pull down 10GB):

    repo sync -j8 -c
<commit_msg>Add a warning that we only support Linux and OSX for support lib development.<commit_after># AOSP Support Library Contribution Guide
## Accepted Types of Contributions
* Bug fixes (needs a corresponding bug report in b.android.com)
* Each bug fix is expected to come with tests
* Fixing spelling errors
* Updating documentation
* Adding new tests to the area that is not currently covered by tests

We **are not** currently accepting new modules, features, or behavior changes.

## Checking Out the Code
**NOTE: You will need to use Linux or Mac OS. Building under Windows is not currently supported.**

Follow the [“Downloading the Source”](https://source.android.com/source/downloading.html) guide to install and set up `repo` tool, but instead of running the listed `repo` commands to initialize the repository, run the folowing:

    repo init -u https://android.googlesource.com/platform/manifest -b ub-supportlib-master

Now your repository is set to pull only what you need for building and running support library. Download the code (and grab a coffee while we pull down 10GB):

    repo sync -j8 -c

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