xenia/docs/building.md

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# Building
You must have a 64-bit machine for building and running the project. Always
run your system updater before building and make sure you have the latest
video drivers for your card.
## Setup
### OS X
Only tested on OS X 10.8 (Mountain Lion).
* [Xcode 4](http://developer.apple.com/xcode/) + command line tools
* [Homebrew](http://mxcl.github.com/homebrew/)
### Linux
Only tested on Ubuntu 12.10.
* random things (`sudo apt-get install make flex bison texinfo`)
* clang (`sudo apt-get install clang`)
Pretty much just install what's asked for as you try to `xb setup` or
`xb build`.
### Windows
* [Python 2.7](http://www.python.org/download/releases/2.7.3/)
Install both and add Python to your PATH (`C:\Python27\`).
Depending on your Visual Studio version you'll need to use one of the provided
command prompts (until I write my own) to perform all `xenia-build` tasks.
#### Visual Studio 2012 (Express)
Basic testing has been done with 2012 Express (all I have access to).
Use the `VS2012 x64 Cross Tools Command Prompt` as your shell.
* [Windows 8 SDK](http://msdn.microsoft.com/en-us/windows/desktop/aa904949.aspx)
* [Visual Studio 2012 Express for Desktop](http://go.microsoft.com/?linkid=9816758)
VS2012 behaves oddly with the debug paths. Open the xenia-run project properties
and set the 'Command' to `$(ProjectDir)$(OutputPath)$(TargetFileName)` and the
'Working Directory' to `$(SolutionDir)..\..`. You can specify flags and
the file to run in the 'Command Arguments' field.
## xenia-build
A simple build script is included to manage basic tasks such as building
dependencies.
./xenia-build.py --help
The `xeniarc` bash file has some aliases that save some keypresses.
source xeniarc
xb -> python xenia-build.py
xbb -> python xenia-build.py build
xbc -> python xenia-build.py clean
### Commands
#### setup
Run this on initial checkout to pull down all dependencies and setup LLVM.
xb setup
#### pull
Does a `git pull` in addition to updating submodules and rebuilding dependencies
and gyp outputs. Use this, if possible, instead of git pull.
xb pull
#### gyp
Updates all of the supported gyp projects. If you're using Visual Studio or
Xcode to build or debug your projects you'll need to run this after you change
gyp/gypi files.
xb gyp
#### build
Builds all xenia targets using ninja. Release is built by default; specify
`--debug` to build the debug configuration.
xb build
xb build --debug
#### clean
Cleans just xenia outputs from the build/ directory. A following build will just
have the rebuild xenia and not all of the dependencies.
xb clean
#### nuke
Cleans up xenia outputs as well as all dependencies. A full build will be
required after this so only do this if you want to reclaim your disk space or
something is really wrong.
xb nuke
## Running
Use the wrapper shell scripts under `bin/` to run tools. They will ensure the
tools are built (but not that they are up to date) before running and allow
switching between the debug and release variants with `--debug`.
### xenia-info
Dumps information about a xex file.
./bin/xenia-info some.xex
### xenia-run
Runs a xex.
./bin/xenia-run some.xex