2.6. Setting up the Environment
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## 2.6. Setting up the Environment

As with the installation process itself, the steps required to set up your environment depend on your host operating system.

### 2.6.1. Setting up the Environment on Microsoft Windows Hosts

#### 2.6.1.1. Setting the `PATH`

In order to use the Sourcery G++ tools from the command line, you should add them to your `PATH`. You may skip this step if you used the graphical installer, since the installer automatically adds Sourcery G++ to your `PATH`.

To set the `PATH` on a Microsoft Windows Vista system, use the following command in a `cmd.exe` shell:

    > setx PATH "%PATH%;C:\Program Files\Sourcery G++\bin"

where `C:\Program Files\Sourcery G++` should be changed to the path of your Sourcery G++ Lite installation.

To set the `PATH` on a system running Microsoft Windows 7, from the desktop bring up the `Start` menu and right click on `Computer`. Select `Properties` and click on `Advanced system settings`. Go to the `Advanced` tab, then click on the `Environment Variables` button. Select the `PATH` variable and click the `Edit`. Add the string `;C:\Program Files\Sourcery G++\bin` to the end, and click `OK`. Be sure to adjust the pathname to reflect your actual installation directory.

To set the `PATH` on older versions of Microsoft Windows, from the desktop bring up the `Start` menu and right click on `My Computer`. Select `Properties`, go to the `Advanced` tab, then click on the `Environment Variables` button. Select the `PATH` variable and click the `Edit`. Add the string `;C:\Program Files\Sourcery G++\bin` to the end, and click `OK`. Again, you must adjust the pathname to reflect your installation directory.

You can verify that your `PATH` is set up correctly by starting a new `cmd.exe` shell and running:

    > c6x-uclinux-g++ -v

Verify that the last line of the output contains: `Sourcery G++ Lite 4.5-109`.

#### 2.6.1.2. Working with Cygwin

Sourcery G++ Lite does not require Cygwin or any other UNIX emulation environment. You can use Sourcery G++ directly from the Windows command shell. You can also use Sourcery G++ from within the Cygwin environment, if you prefer.

The Cygwin emulation environment translates Windows path names into UNIX path names. For example, the Cygwin path `/home/user/hello.c` corresponds to the Windows path `c:\cygwin\home\user\hello.c`. Because Sourcery G++ is not a Cygwin application, it does not, by default, recognize Cygwin paths.

If you are using Sourcery G++ from Cygwin, you should set the `CYGPATH` environment variable. If this environment variable is set, Sourcery G++ Lite automatically translates Cygwin path names into Windows path names. To set this environment variable, type the following command in a Cygwin shell:

    > export CYGPATH=cygpath

To resolve Cygwin path names, Sourcery G++ relies on the `cygpath` utility provided with Cygwin. You must provide Sourcery G++ with the full path to `cygpath` if `cygpath` is not in your `PATH`. For example:

    > export CYGPATH=c:/cygwin/bin/cygpath

directs Sourcery G++ Lite to use `c:/cygwin/bin/cygpath` as the path conversion utility. The value of `CYGPATH` must be an ordinary Windows path, not a Cygwin path.

### 2.6.2. Setting up the Environment on GNU/Linux Hosts

If you installed Sourcery G++ Lite using the graphical installer then you may skip this step. The installer does this setup for you.

Before using Sourcery G++ Lite you should add it to your `PATH`. The command you must use varies with the particular command shell that you are using. If you are using the C Shell (`csh` or `tcsh`), use the command:

    > setenv PATH $HOME/CodeSourcery/Sourcery_G++/bin:$PATH

If you are using Bourne Shell (`sh`), the Korn Shell (`ksh`), or another shell, use:

    > PATH=$HOME/CodeSourcery/Sourcery_G++/bin:$PATH
    > export PATH

If you are not sure which shell you are using, try both commands. In both cases, if you have installed Sourcery G++ Lite in an alternate location, you must replace the directory above with `bin` subdirectory of the directory in which you installed Sourcery G++ Lite.

You may also wish to set the `MANPATH` environment variable so that you can access the Sourcery G++ manual pages, which provide additional information about using Sourcery G++. To set the `MANPATH` environment variable, follow the same steps shown above, replacing `PATH` with `MANPATH`, and `bin` with `share/doc/sourceryg++-c6x-uclinux/man`.

You can test that your `PATH` is set up correctly by running the following command:

    > c6x-uclinux-g++ -v

Verify that the last line of the output contains: `Sourcery G++ Lite 4.5-109`.

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