• Ubuntu 12.04 or newer
• Install required packages:

$ sudo apt-get install vim expect-dev build-essential cmake coreutils curl \
    fakeroot sed git-core gawk unzip wget diffstat python python-jinja2 \
    python-pip python-pyparsing python-pysqlite2 python-bs4 python-xmltodict \
    bison flex chrpath libgmp3-dev libmpfr-dev libreadline6-dev libtool libxml2-dev \
    libxml-libxml-perl m4 clang ninja-build autoconf pkg-config doxygen graphviz

• Cross-build toolchain(s) For Sierra Wireless platforms, toolchains are available at http://source.sierrawireless.com/resources/legato/downloads/

Legato uses repo as it is distributed as multiple repositories.

1. Install git-repo:

(on Ubuntu > 14.04)
```
$ sudo apt-get install phablet-tools
```
OR
```
$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo
```

2. Clone the environment:

```
$ mkdir workspace
$ cd workspace
$ repo init -u git://github.com/legatoproject/manifest
$ repo sync
```

You can also clone a specific release:

```
$ repo init -u git://github.com/legatoproject/manifest -m legato/releases/16.04.1.xml
$ repo sync
```

To install the Legato framework on your development PC,

1. clone it from GitHub or untar a release archive into a directory

2. cd into that directory

3. run make

4. To configure your bash shell's environment for the Legato application build tools, source bin/configlegatoenv:

   $ . bin/configlegatoenv

   OR, run the interactive bash shell bin/legs:

   $ bin/legs

5. To build support for cross-build targets, run make <target>. For example, to enable support for the Sierra Wireless AR7xxx devices, run make ar7. Of course, each of these depends on the cross-build tool chain for that target, so ensure that you have the appropriate tool chain installed first.

   The path to your tool chain and the prefix of the name of the tools in the tool chain are specified using the xxxxxx_TOOLCHAIN_DIR and xxxxxx_TOOLCHAIN_PREFIX environment variables (where xxxxxx is replaced with the target platform's ID, such as WP85).

   If your toolchain is installed somewhere other than the default location under /opt/swi, ensure that the appropriate environment variables are set to tell the build tools where to find your toolchain and what its prefix is. For example, for Sierra Wireless WP85xx devices, WP85_TOOLCHAIN_DIR must be set to the path of the directory that contains the file arm-poky-linux-gnuabi-gcc, and WP85_TOOLCHAIN_PREFIX must be set to arm-poky-linux-gnuabi-.

   Following is a list of supported cross-build targets:

Once you have completed the first three installation steps above, you will find a set of HTML documentation under the "Documentation" directory. Point your web browser at Documentation/index.html to view it.

To uninstall Legato from your development PC:

• Delete the directory you unzipped Legato under
• Revert any changes you may have made to your .bashrc, etc. to set up XXX_TOOLCHAIN_DIR environment variables.

The top level directory structure is as follows:

./apps - contains source code for apps.

./bin - created by build system and populated with executable files that run on the development host (the host that ran the build).

./build - contains the results of the build. Will be created by the build system.

./build/tools - contains build tools that are built and then used by the build system on the build host to build other things.

./build/<target> - contains the output of a build for a specific target (e.g., ./build/wp85).

./cmake - contains CMake scripts used by the build system to build samples and unit tests.

./components - contains platform-independent components that are used in apps.

./framework - contains the source code for the Legato application framework itself.

./targetFiles - contains some files for installation on target devices that don't need to be built.

./platformAdaptor - contains components that are specific to certain platforms.

./modules - contains other repositories that are extending Legato.

Copyright (C) Sierra Wireless Inc. Use of this work is subject to license.