Merge pull request #179 from NoahAndrews/add-win-linux-instructions

Added Windows and Linux instructions to BUILD_GUIDE.md

BUILD_GUIDE.md

@@ -3,7 +3,11 @@
 ## Build Environment Setup
 
 ### Windows
-What these instructions look like depends on whether NoahAndrews's setup scripts get merged
+1. Install [MHV AVR Tools](https://infernoembedded.com/sites/default/files/project/MHV_AVR_Tools_20131101.exe). Disable smatch, but **be sure to leave the option to add the tools to the PATH checked**.
+2. Install [MinGW](https://sourceforge.net/projects/mingw/files/Installer/mingw-get-setup.exe/download). During installation, uncheck the option to install a graphical user interface. **DO NOT change the default installation folder.** The scripts depend on the default location.
+3. Clone this repository. [This link will download it as a zip file, which you'll need to extract.](https://github.com/jackhumbert/qmk_firmware/archive/master.zip) Open the extracted folder in Windows Explorer.
+4. Right-click on the 1-setup-path-win batch script, select "Run as administrator", and accept the User Account Control prompt. Press the spacebar to dismiss the success message in the command prompt that pops up.
+5. Right-click on the 2-setup-environment-win batch script, select "Run as administrator", and accept the User Account Control prompt. This part may take a couple of minutes, and you'll need to approve a driver installation, but once it finishes, your environment is complete!
 
 ### Mac
 If you're using [homebrew,](http://brew.sh/) you can use the following commands:
@@ -21,6 +25,12 @@ You can also try these instructions:
 3. Install [DFU-Programmer][dfu-prog].
 
 ### Linux
+Install AVR GCC and dfu-progammer with your favorite package manager.
+
+Debian/Ubuntu example: 
+
+    sudo apt-get update
+    sudo apt-get install gcc-avr dfu-programmer
 
 ### Vagrant
 If you have any problems building the firmware, you can try using a tool called Vagrant. It will set up a virtual computer with a known configuration that's ready-to-go for firmware building. OLKB does NOT host the files for this virtual computer. Details on how to set up Vagrant are in the [VAGRANT_GUIDE file](VAGRANT_GUIDE.md).