1 files changed, 11 insertions, 2 deletions

diff --git a/src/msvcbuild.bat b/src/msvcbuild.bat
index 6ea80219..200c651f 100644
--- a/src/msvcbuild.bat
+++ b/src/msvcbuild.bat
@@ -1,8 +1,15 @@
 @rem Script to build LuaJIT with MSVC.

 @rem Copyright (C) 2005-2010 Mike Pall. See Copyright Notice in luajit.h

 @rem

-@rem Open a "Visual Studio .NET Command Prompt", cd to this directory

-@rem and run this script.

+@rem Either open a "Visual Studio .NET Command Prompt"

+@rem (Note that the Express Edition does not contain an x64 compiler)

+@rem -or-

+@rem Open a "Windows SDK Command Shell" and set the compiler environment:

+@rem     setenv /release /x86

+@rem   -or-

+@rem     setenv /release /x64

+@rem

+@rem Then cd to this directory and run this script.

 

 @if not defined INCLUDE goto :FAIL

 

@@ -16,6 +23,8 @@
 

 if not exist buildvm_x86.h^

   %DASM% -LN -o buildvm_x86.h buildvm_x86.dasc

+if not exist buildvm_x64win.h^

+  %DASM% -LN -D X64 -D X64WIN -o buildvm_x64win.h buildvm_x86.dasc

 

 %LJCOMPILE% /I "." /I %DASMDIR% buildvm*.c

 %LJLINK% /out:buildvm.exe buildvm*.obj