Merge pull request #5 from jackhumbert/master

Sync with upstream

114 files changed, 12942 insertions, 3408 deletions

diff --git a/1-setup-path-win.bat b/1-setup-path-win.bat
index 49fb00e149..2c15857bb7 100644
--- a/1-setup-path-win.bat
+++ b/1-setup-path-win.bat
@@ -1,9 +1,71 @@
-@echo off
-setx /M path "%PATH%;C:\MinGW\bin;C:\MinGW\msys\1.0\bin" > nul 2>&1
-if NOT ["%errorlevel%"]==["0"] (
-	echo FAILED. Rerun with administrator privileges.
-	pause
-) else (
-	echo Success!
-	pause
-)
+@SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
+@ECHO OFF
+SET CMDLINERUNSTR=%SystemRoot%\system32\cmd.exe
+
+SET NEWPATH1="C:\MinGW\msys\1.0\bin"
+SET NEWPATH2="C:\MinGW\bin"
+
+:: Make sure paths exist
+IF NOT EXIST !NEWPATH1! (ECHO Path not found: %NEWPATH1% && GOTO ExitBatch)
+IF NOT EXIST !NEWPATH2! (ECHO Path not found: %NEWPATH2% && GOTO ExitBatch)
+
+:: Add paths
+CALL :AddPath %NEWPATH1%
+CALL :AddPath %NEWPATH2%
+
+:: Branch to UpdateEnv if we need to update
+IF DEFINED UPDATE (GOTO UpdateEnv)
+
+GOTO ExitBatch
+
+:: -----------------------------------------------------------------------------
+
+:UpdateEnv
+ECHO Making updated PATH go live . . .
+REG delete HKCU\Environment /F /V TEMPVAR > nul 2>&1
+setx TEMPVAR 1 > nul 2>&1
+REG delete HKCU\Environment /F /V TEMPVAR > nul 2>&1
+IF NOT !cmdcmdline! == !CMDLINERUNSTR! (CALL :KillExplorer)
+GOTO ExitBatch
+
+:: -----------------------------------------------------------------------------
+
+:ExitBatch
+ENDLOCAL
+PAUSE
+EXIT /b
+
+:: -----------------------------------------------------------------------------
+
+:AddPath <pathToAdd>
+ECHO %PATH% | FINDSTR /C:"%~1" > nul
+IF ERRORLEVEL 1 (
+	REG add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /f /v PATH /t REG_SZ /d "%PATH%;%~1"  > nul 2>&1
+	IF ERRORLEVEL 0 (
+		ECHO Adding   %1 . . . Success!
+		SET "PATH=%PATH%;%~1"
+		SET UPDATE=1
+	) ELSE (
+		ECHO Adding   %1 . . . FAILED. Run this script with administrator privileges.
+	)	
+) ELSE (
+	ECHO Skipping %1 - Already in PATH
+	)
+EXIT /b
+
+:: -----------------------------------------------------------------------------
+
+:KillExplorer
+
+ECHO Your desktop is being restarted, please wait. . .   
+ping -n 5 127.0.0.1 > NUL 2>&1   
+ECHO Killing process Explorer.exe. . .   
+taskkill /f /im explorer.exe   
+ECHO.   
+ECHO Your desktop is now loading. . .   
+ping -n 5 127.0.0.1 > NUL 2>&1   
+ECHO.   
+ping -n 5 127.0.0.1 > NUL 2>&1   
+START explorer.exe
+START explorer.exe %CD%
+EXIT /b
\ No newline at end of file
diff --git a/BUILD_GUIDE.md b/BUILD_GUIDE.md
index 81c3ec44f2..f7a57d2fc9 100644
--- a/BUILD_GUIDE.md
+++ b/BUILD_GUIDE.md
@@ -3,11 +3,13 @@
 ## Build Environment Setup
 
 ### Windows
-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!
+1. If you have ever installed WinAVR, uninstall it.
+2. 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**.
+3. 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.
+4. 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.
+5. 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.
+6. 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!
+7. Future build commands should be run from the standard Windows command prompt, which you can find by searching for "command prompt" from the start menu or start screen. Ignore the "MHV AVR Shell".
 
 ### Mac
 If you're using [homebrew,](http://brew.sh/) you can use the following commands:
@@ -25,12 +27,12 @@ You can also try these instructions:
 3. Install [DFU-Programmer][dfu-prog].
 
 ### Linux
-Install AVR GCC and dfu-progammer with your favorite package manager.
+Install AVR GCC, AVR libc, and dfu-progammer with your favorite package manager.
 
 Debian/Ubuntu example: 
 
     sudo apt-get update
-    sudo apt-get install gcc-avr dfu-programmer
+    sudo apt-get install gcc-avr avr-libc 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).
@@ -42,7 +44,10 @@ If you have any problems building the