Update MSVC build script and docs.

doc/install.html

@@ -114,14 +114,14 @@ operating systems, CPUs and compilers:
 <td class="compatos">GCC 4.x+<br>GCC 3.4</td>
 <td class="compatos">GCC 4.x+<br>GCC 3.4</td>
 <td class="compatos">XCode 5.0+<br>Clang</td>
-<td class="compatos">MSVC, MSVC/EE<br>WinSDK<br>MinGW, Cygwin</td>
+<td class="compatos">MSVC<br>MinGW, Cygwin</td>
 </tr>
 <tr class="even">
 <td class="compatcpu">x64 (64 bit)</td>
 <td class="compatos">GCC 4.x+</td>
 <td class="compatos">ORBIS (<a href="#ps4">PS4</a>)</td>
 <td class="compatos">XCode 5.0+<br>Clang</td>
-<td class="compatos">MSVC + SDK v7.0<br>WinSDK v7.0</td>
+<td class="compatos">MSVC</td>
 </tr>
 <tr class="odd">
 <td class="compatcpu"><a href="#cross2">ARMv5+<br>ARM9E+</a></td>
@@ -166,7 +166,7 @@ only).</li>
 <li><tt>src/Makefile</tt> has settings for <b>compiling</b> LuaJIT
 under POSIX, MinGW or Cygwin.</li>
 <li><tt>src/msvcbuild.bat</tt> has settings for compiling LuaJIT with
-MSVC or WinSDK.</li>
+MSVC (Visual Studio).</li>
 </ul>
 <p>
 Please read the instructions given in these files, before changing
@@ -243,17 +243,7 @@ Either install one of the open source SDKs
 (<a href="http://mingw.org/"><span class="ext">&raquo;</span>&nbsp;MinGW</a> or
 <a href="http://www.cygwin.com/"><span class="ext">&raquo;</span>&nbsp;Cygwin</a>), which come with a modified
 GCC plus the required development headers.
-</p>
+Or install Microsoft's Visual Studio (MSVC).
-<p>
-Or install Microsoft's Visual C++ (MSVC). The freely downloadable
-<a href="http://www.microsoft.com/Express/VC/"><span class="ext">&raquo;</span>&nbsp;Express Edition</a>
-works just fine, but only contains an x86 compiler.
-</p>
-<p>
-The freely downloadable
-<a href="http://msdn.microsoft.com/en-us/windowsserver/bb980924.aspx"><span class="ext">&raquo;</span>&nbsp;Windows SDK</a>
-only comes with command line tools, but this is all you need to build LuaJIT.
-It contains x86 and x64 compilers.
 </p>
 <p>
 Next, download the source package and unpack it using an archive manager
@@ -261,7 +251,7 @@ Next, download the source package and unpack it using an archive manager
 </p>
 <h3>Building with MSVC</h3>
 <p>
-Open a "Visual Studio .NET Command Prompt", <tt>cd</tt> to the
+Open a "Visual Studio Command Prompt" (either x86 or x64), <tt>cd</tt> to the
 directory where you've unpacked the sources and run these commands:
 </p>
 <pre class="code">
@@ -269,30 +259,7 @@ cd src
 msvcbuild
 </pre>
 <p>
-Then follow the installation instructions below.
+Check the <tt>msvcbuild.bat</tt> file for more options.
-</p>
-<h3>Building with the Windows SDK</h3>
-<p>
-Open a "Windows SDK Command Shell" and select the x86 compiler:
-</p>
-<pre class="code">
-setenv /release /x86
-</pre>
-<p>
-Or select the x64 compiler:
-</p>
-<pre class="code">
-setenv /release /x64
-</pre>
-<p>
-Then <tt>cd</tt> to the directory where you've unpacked the sources
-and run these commands:
-</p>
-<pre class="code">
-cd src
-msvcbuild
-</pre>
-<p>
 Then follow the installation instructions below.
 </p>
 <h3>Building with MinGW or Cygwin</h3>

src/msvcbuild.bat

@@ -1,19 +1,19 @@
 @rem Script to build LuaJIT with MSVC.
-@rem Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h
+@rem Copyright (C) 2005-2019 Mike Pall. See Copyright Notice in luajit.h
 @rem
-@rem Either open a "Visual Studio .NET Command Prompt"
+@rem Open a "Visual Studio Command Prompt" (either x86 or x64).
-@rem (Note that the Express Edition does not contain an x64 compiler)
+@rem Then cd to this directory and run this script. Use the following
-@rem -or-
+@rem options (in order), if needed. The default is a dynamic release build.
-@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.
+@rem   debug    emit debug symbols
+@rem   amalg    amalgamated build
+@rem   static   static linkage
 
 @if not defined INCLUDE goto :FAIL
 
 @setlocal
+@rem Add more debug flags here, e.g. DEBUGCFLAGS=/DLUA_USE_APICHECK
+@set DEBUGCFLAGS=
 @set LJCOMPILE=cl /nologo /c /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_STDIO_INLINE=__declspec(dllexport)__inline
 @set LJLINK=link /nologo
 @set LJMT=mt /nologo
@@ -22,6 +22,7 @@
 @set DASM=%DASMDIR%\dynasm.lua
 @set LJDLLNAME=lua51.dll
 @set LJLIBNAME=lua51.lib
+@set BUILDTYPE=release
 @set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c
 
 %LJCOMPILE% host\minilua.c
@@ -65,9 +66,10 @@ buildvm -m folddef -o lj_folddef.h lj_opt_fold.c
 
 @if "%1" neq "debug" goto :NODEBUG
 @shift
-@set LJCOMPILE=%LJCOMPILE% /Zi
+@set BUILDTYPE=debug
-@set LJLINK=%LJLINK% /debug
+@set LJCOMPILE=%LJCOMPILE% /Zi %DEBUGCFLAGS%
 :NODEBUG
+@set LJLINK=%LJLINK% /%BUILDTYPE%
 @if "%1"=="amalg" goto :AMALGDLL
 @if "%1"=="static" goto :STATIC
 %LJCOMPILE% /MD /DLUA_BUILD_AS_DLL lj_*.c lib_*.c
@@ -111,5 +113,5 @@ if exist luajit.exe.manifest^
 @echo *******************************************************
 @goto :END
 :FAIL
-@echo You must open a "Visual Studio .NET Command Prompt" to run this script
+@echo You must open a "Visual Studio Command Prompt" to run this script
 :END