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Setting up Development Environment: Difference between revisions

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= Setup =
= Setup =
* Install [https://devkitpro.org/ devkitARM]. If it's already installed, update it.
Install [https://devkitpro.org/ devkitARM]. If it's already installed, update it using sudo (dkp-)pacman -Syu. On Windows, there's a [https://github.com/devkitPro/installer/releases/latest graphical installer]. On Unix-like platforms such as Linux/macOS, there's [https://github.com/devkitPro/pacman/releases/latest pacman]..
** On Windows, there's a [https://github.com/devkitPro/installer/releases/latest graphical installer].
** On Unix-like platforms such as Linux/macOS, there's a [https://raw.githubusercontent.com/devkitPro/installer/master/perl/devkitARMupdate.pl Perl script]. Make sure you also select libctru and the 3ds examples when installing.
* Depending on the kind of homebrew you want to develop, you may be interested in installing and using additional libraries and tools which don't ship alongside devkitARM/libctru. A list of them can be found in [[Homebrew Libraries and Tools]].


==Windows==
==Windows==
devkitPro provides Win32-native precompiled versions of devkitARM which can be run directly on Windows.
* If you already use msys2 then you can follow the instructions at https://github.com/devkitPro/pacman/releases/latest to add the devkitPro repositories.
* [https://github.com/devkitPro/installer/releases/latest download the latest version of the graphical installer] from SourceForge and run it, following the instructions as you go.
 
Otherwise
 
* [https://github.com/devkitPro/installer/releases/latest download the latest version of the graphical installer] from github and run it, following the instructions as you go.
* An Internet connection is required.
* An Internet connection is required.
* You will want to make sure devkitARM is selected during the installation process to develop for the 3DS (and also the DS and GBA) - you can also install devkitPPC (for GameCube/Wii development) and devkitPSP (for PlayStation Portable development) if you wish.
* Ensure at least "3DS Development" is ticked - you can also leave the other options ticked if you wish.
* Once the installer has finished, launch MSYS from:
* Once the installer has finished, launch MSYS from:
** Windows 7 and earlier: Start -> All Programs -> devkitPro -> MSYS
** Windows 7 and earlier: Start -> All Programs -> devkitPro -> MSYS
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==Unix-like platforms==
==Unix-like platforms==
Currently devkitPro provides precompiled versions of devkitARM for the following Unix-like platforms: Linux (x86/x64), macOS (universal binary). Note that Linux x64 binaries are usable under WSL.
Currently devkitPro provides precompiled versions of devkitARM for the following Unix-like platforms: Linux (x86_64), macOS (x86_64). Note that Linux x86_64 binaries are usable under WSL.
 
* First, you need to install curl so the installer can download the devkitARM packages, and you should also install Git - you'll need it to update libctru or share your code on GitHub, among many other things. If you are running Linux, you'll also need wget; it comes preinstalled on most distributions, but not all.
 
* Find your way into a shell (eg. by opening a Terminal window), and follow the instructions for your OS:
** Debian/Ubuntu/Linux Mint/Ubuntu on WSL: <code>sudo apt-get install git curl</code>
** Fedora/CentOS/RHEL: <code>sudo yum install git curl</code>
** openSUSE: <code>sudo zypper install git curl</code>
** Arch Linux/ALWSL: <code>sudo pacman -S git curl wget</code>
** macOS: Download Git from [http://git-scm.com/download/mac] and install it. Curl is included with the OS.
 
* Next, we need to download, make executable and run the devkitARM updater (don't worry, the updater is also the installer.)
<pre>
curl -L https://raw.githubusercontent.com/devkitPro/installer/master/perl/devkitARMupdate.pl -o devkitARMupdate.pl
chmod +x ./devkitARMupdate.pl
sudo ./devkitARMupdate.pl /opt/devkitpro
</pre>


* Finally, we need to tell your shell where to find the devkitARM binaries.
* Follow the instructions to install pacman found at https://github.com/devkitPro/pacman/releases/latest
<pre>
* run sudo (dkp-)pacman -S 3ds-dev to install the tools and libraries for 3ds development
echo "export DEVKITPRO=/opt/devkitpro" >> ~/.bashrc
* logout and login again to get the environment settings needed.
echo "export DEVKITARM=/opt/devkitpro/devkitARM" >> ~/.bashrc
source ~/.bashrc
</pre>


= Building the examples =
= Building the examples =
3DS examples are still being created; however, there are a growing number of examples available from the [https://github.com/devkitPro/3ds-examples devkitPro/3ds-examples GitHub repository].
3DS examples are still being created; however, there are a growing number of examples available from the [https://github.com/devkitPro/3ds-examples devkitPro/3ds-examples GitHub repository]. These are downloaded by the installer and can be found in $DEVKITPRO/examples/3ds
There are now too many to list here in detail, so go ahead and browse them.
 
* To download these, if you installed Git (as you will have if you followed the above instructions), simply type <code>git clone https://github.com/devkitPro/3ds-examples.git</code> into your shell in the directory you wish to store the 3ds-examples folder in.


These can be built from the command line.
These can be built from the command line.
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==Running your code==
==Running your code==
To run it on your 3DS, start the Homebrew Launcher, press Y to open the network loader, then on your PC type: <code>$DEVKITARM/bin/3dslink  '''my3dsproject'''.3dsx</code>, replacing '''my3dsproject''' with the name of the 3dsx file you want to run.)
To run it on your 3DS, start the Homebrew Launcher, press Y to open the network loader, then on your PC type: <code>$DEVKITPRO/tools/bin/3dslink  '''my3dsproject'''.3dsx</code>, replacing '''my3dsproject''' with the name of the 3dsx file you want to run.)
 
If all goes well, you'll soon see your application running on your 3DS.
 
==Building the examples on Linux with Netbeans==
* Go to File->New Project...
* Select C/C++ Project with existing code
* Navigate to the examples directory and select the folder for the project you want to build; eg.    /home/vtsingaras/3ds/examples/app_launch
* Leave Configuration Mode to 'Automatic' and click 'Finish'.
* It will fail to build. Now edit Makefile and insert these two lines, adjusting for your devkitpro path, at the top:
<pre>export DEVKITPRO=/opt/devkitpro
export DEVKITARM=/opt/devkitpro/devkitARM</pre>
* Right-click the project and go to Properties->Code Assistance and click C Compiler.
* In include directories enter
<pre>/opt/devkitpro/devkitARM/include;/opt/devkitpro/libctru/include</pre>
adjusting again for your devkitPro path.
* Do the same for 'C++ Compiler'.
* Go to 'Run' and click 'Clean and Build Project'.
* Now right-click on the project and select Code Assistance->Reparse Project.


Now you can use Netbeans' code completion feature and build your project from the Run menu.
If all goes well, you'll soon see your application running on your 3DS. If not, it could help to add <code>-a '''ipaddress'''</code>, replacing '''ipaddress''' with the ip address of the console (visible on homebrew launcher after pressing Y).


= Troubleshooting =
= Troubleshooting =
'''I get the "Please set DEVKITARM in your environment." error.'''
'''I get the "Please set DEVKITARM in your environment." error.'''


Use the following command before installing [http://askubuntu.com/questions/573070/problem-setting-up-environment-for-make-command-execution]:
Ensure you have the devkit-env package installed - (dkp-)pacman -Sl | grep devkit-env. Logout and login to get the enviroment settings.
sudo chown $USER /opt/devkitpro/ -R
echo "export DEVKITPRO=\"/opt/devkitpro/\"" >> ~/.profile
echo "export DEVKITARM=\"\${DEVKITPRO}/devkitARM/\"" >> ~/.profile
source ~/.profile


For WSL users, you need to close the Bash shell, then reopen it for WSL to reload all of the variables from a clean state.
For WSL users, you need to close the Bash shell, then reopen it for WSL to reload all of the variables from a clean state.
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