.

Common/3dParty/v8/build.bat

 SET SCRIPTPATH=%~dp0
 CD /D %~dp0
 
-SET PATH=%SCRIPTPATH%depot_tools;%SCRIPTPATH%depot_tools\python276_bin;%PATH%
-SET DEPOT_TOOLS_WIN_TOOLCHAIN=0
-SET GYP_MSVS_VERSION=2013
+SET PATH=%SCRIPTPATH%depot_tools;%PATH%
+set DEPOT_TOOLSPWIN_TOOLCHAIN=0
 
-SET VC64_PATH=%ProgramFiles(x86)%\Microsoft Visual Studio 12.0\Common7\IDE
-SET VC32_PATH=%ProgramFiles%\Microsoft Visual Studio 12.0\Common7\IDE
-
-setlocal enabledelayedexpansion
-if defined ProgramFiles(x86) (
-	SET PATH=!VC64_PATH!;!PATH!
-) else (
-	SET PATH=!VC32_PATH!;!PATH!
-)
-
-if not exist "win_32" (
-  echo "building x86... -------------------------------------------"
-  
-  md win_32
-  md win_32\debug
-  md win_32\release
-
-  call python v8\build\gyp_v8
-  call .\change_projects.bat
-
-  cd "%SCRIPTPATH%v8\tools\gyp"
-
-  call devenv v8.sln /Rebuild "Release"
-  call devenv v8.sln /Rebuild "Debug"
-
-  cd "%SCRIPTPATH%"
-
-  XCOPY /Y "v8\build\Release\lib\*" "win_32\release\"
-  XCOPY /Y "v8\build\Release\icudt.dll" "win_32\release\"
-
-  XCOPY /Y "v8\build\Debug\lib\*" "win_32\debug\"
-  XCOPY /Y "v8\build\Debug\icudt.dll" "win_32\debug\"
-)
-
-if not exist "win_64" (
-  echo "building x64... -------------------------------------------"
-
-  md win_64
-  md win_64\debug
-  md win_64\release
-
-  call python v8\build\gyp_v8 -Dtarget_arch=x64
-  call .\change_projects.bat
-
-  cd "%SCRIPTPATH%v8\tools\gyp"
-
-  call devenv v8.sln /Rebuild "Release"
-  call devenv v8.sln /Rebuild "Debug"
-
-  cd "%SCRIPTPATH%"
-
-  XCOPY /Y "v8\build\Release\lib\*" "win_64\release\"
-  XCOPY /Y "v8\build\Release\icudt.dll" "win_64\release\"
-
-  XCOPY /Y "v8\build\Debug\lib\*" "win_64\debug\"
-  XCOPY /Y "v8\build\Debug\icudt.dll" "win_64\debug\"
-)
+cd v8
+call python tools/dev/v8gen.py x64.release
+call gn gen out.gn/x64.release --args='is_debug=false target_cpu="x64" v8_target_cpu="x64" v8_static_library=true is_component_build=false v8_use_snapshot=false is_clang=false use_sysroot=false'
+call ninja -C out.gn/x64.release
\ No newline at end of file

Common/3dParty/v8/fetch.bat

@@ -5,15 +5,13 @@ if exist "depot_tools" (
 	echo "depot_tools already fetched"
 ) else (
 	call git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
-	call powershell -File .\fix-depot_tools.ps1
 )
 
-SET PATH=%SCRIPTPATH%depot_tools;%SCRIPTPATH%depot_tools\python276_bin;%PATH%
-SET DEPOT_TOOLS_WIN_TOOLCHAIN=0
-SET GYP_MSVS_VERSION=2013
+SET PATH=%SCRIPTPATH%depot_tools;%PATH%
+call gclient
 
-if not exist "%SCRIPTPATH%v8" (
-call .\depot_tools\fetch v8
-)
+call ./depot_tools/fetch v8
+cd v8
+call git checkout -b 6.0 -t branch-heads/6.0
 
-call depot_tools\gclient sync -r 4.10.253
+call gclient sync