MinGW+Lua环境配置小结 .

虽说VC是Windows下C++开发的首选工具，但有时候写一些小程序，我还是更倾向于使用一些轻量级的开发工具。比如最近研究Lua嵌入C++，有时候只是写一些很小的程序，这时候Visual Studio就显得太过臃肿了，于是我选择了EditPlus+MinGW的方法。搞了两个晚上，终于搭建好了环境，在这里总结一下，以备将来查看。
    MinGW的安装比较简单了。我偷懒直接下了个自动安装程序，他会自己去下载最新的包，并解压到正确的位置。为了更方便的使用，还需要配置环境变量，google了一下，还挺多。要是每到一台机器都要这样配置的话，那不是很累。本着计算机能完成的工作绝不自己做的原则，我决定写个js脚本配置环境变量。最开始采用了修改注册表的方法，但是后来发现这种方式修改环境变量是不能立即生效的。又google了一下，改用WScript的shell对象来直接修改环境变量。

    要配置的环境变量：

    MINGW_PATH = “MinGW的主目录”

    C_INCLUDE_PATH = "%MINGW_PATH%//include;%MINGW_PATH%//lib//gcc//mingw32//3.4.5//include ";

    CPLUS_INCLUDE_PATH = "%MINGW_PATH%//include//c++//3.4.5;%MINGW_PATH%//include//c++//3.4.5//mingw32;%MINGW_PATH%

//include//c++//3.4.5//backward;%C_INCLUDE_PATH% ";

    LIBRARY_PATH = "%MINGW_PATH%//lib;%MINGW_PATH%//lib//gcc//mingw32//3.4.5";

    PATH = "%MINGW_PATH%//bin;%MINGW_PATH%//libexec//gcc//mingw32//3.4.5;";

    写成js脚本，把这个脚本放到MinGW的主目录里，双击运行就可以了。 

function GetCurrPath ()
{
    fso = new ActiveXObject ("Scripting.FileSystemObject" );
    currFolder = fso . GetFolder ("." );
    return currFolder . path
}

//取得当前路径
MINGW_PATH = GetCurrPath ();

C_INCLUDE_PATH = "%MINGW_PATH%//include;%MINGW_PATH%//lib//gcc//mingw32//3.4.5//include " ;

CPLUS_INCLUDE_PATH = "%MINGW_PATH%//include//c++//3.4.5;%MINGW_PATH%//include//c++//3.4.5//mingw32;%MINGW_PATH%//include/

/c++//3.4.5//backward;%C_INCLUDE_PATH% " ;

LIBRARY_PATH = "%MINGW_PATH%//lib;%MINGW_PATH%//lib//gcc//mingw32//3.4.5" ;

PATH = "%MINGW_PATH%//bin;%MINGW_PATH%//libexec//gcc//mingw32//3.4.5;" ;

var WshShell = WScript . CreateObject ("WScript.Shell" );
var WshSysEnv =   WshShell . Environment ("SYSTEM" );
WshSysEnv ("MINGW_PATH" ) = MINGW_PATH ;
WshSysEnv ("C_INCLUDE_PATH" ) = C_INCLUDE_PATH ;
WshSysEnv ("CPLUS_INCLUDE_PATH" ) = CPLUS_INCLUDE_PATH ;
WshSysEnv ("LIBRARY_PATH" ) = LIBRARY_PATH ;
PATH = PATH + WshSysEnv ("PATH" );
WshSysEnv ("PATH" ) = PATH ;
WScript . Echo ("MinGW环境变量设置完成！" );

    接下来是Lua环境，下载Lua的bin和lib以后，做成下面的目录结构：

Lua
│
├─bin
│      bin2c.exe
│      lua.exe
│      lua5.1.dll
│      lua51.dll
│      luac.exe
│      wlua.exe
│
├─include
│      lauxlib.h
│      lua.h
│      lua.hpp
│      luaconf.h
│      lualib.h
│
└─lib
        lua5.1.lib
        lua51.lib

    然后仍然是js脚本配置环境变量：

function GetCurrPath ()
{
    fso = new ActiveXObject ("Scripting.FileSystemObject" );
    currFolder = fso . GetFolder ("." );
    return currFolder . path
}

//取得当前路径
LUA_HOME = GetCurrPath ();

LUA_BIN = "%LUA_HOME%//bin;" ;

LUA_INCLUDE = "%LUA_HOME%//include;" ;

LUA_LIB = "%LUA_HOME%//lib;" ;

var WshShell = WScript . CreateObject ("WScript.Shell" );
var WshSysEnv =   WshShell . Environment ("SYSTEM" );

WshSysEnv ("LUA_HOME" ) = LUA_HOME ;
//bin加入path
WshSysEnv ("PATH" ) = LUA_BIN + WshSysEnv ("PATH" );
//include加入MinGW
WshSysEnv ("C_INCLUDE_PATH" ) = LUA_INCLUDE + WshSysEnv ("C_INCLUDE_PATH" );
//lib加入MinGW
WshSysEnv ("LIBRARY_PATH" ) = LUA_LIB + WshSysEnv ("LIBRARY_PATH" );
WScript . Echo ("LUA环境变量设置完成!" );

    有时候设置好了却不生效，重启一下就好了。先写个Hello World测试一下。

#include <lua.hpp>
#include <iostream>
using namespace std ;

int main ()
{
    lua_State * L = lua_open ();
    lua_cpcall (L , luaopen_base , 0 );

    if (luaL_loadfile (L , "test.lua" ) || lua_pcall (L , 0 , 0 , 0 ))
        cout << lua_tostring (L , - 1 )<< endl ;

    lua_close (L );

    system ("pause" );
    return 0 ;
}

    test.lua:

print (" Hello World!" )

    makefile:

all : main.exe
#all:rebuild
    main.exe

main.exe : main.o
    g++ -o $@ $^ -llua5.1

main.o : main.cpp
    g++ -c main.cpp

clear :
    -del *.exe *.o

rebuild : clear main.exe

    直接make，编译、连接、运行一次搞定。

g++ -c main.cpp
g++ -o main.exe main.o -llua5.1
main.exe
Hello World!
请按任意键继续. . .