scons构建系统

scons采用python语言作为其构建语言，因此非常强大灵活，举例如下:

SetOption("random", 1)env = Environment(MSVC_VERSION="9.0", CXXFLAGS=["/EHsc", "/MD", "/Zi"], WINDOWS_EMBED_MANIFEST="1", CPPDEFINES=["NDEBUG"])COMMON_LIBS = []GAMESERVER_CPPPATH = []GAMESERVER_LIBPATH = []GAMESERVER_LINKFLAGS = []def build_common():    Export("env")    #xlib    xlib_target = SConscript("BGLServer/xlib/source/SConscript", variant_dir="build/xlib", duplicate=0)    #public    public_target = SConscript("BGLServer/public/SConscript", variant_dir="build/public", duplicate=0)    #gui    gui_target = SConscript("EasyGui/EasyGui/SConscript", variant_dir="build/gui", duplicate=0)    global COMMON_LIBS        COMMON_LIBS = [        xlib_target,        public_target,        gui_target,        "gdi32",        "advapi32"        ]def build_gameserver():    #gameserver    global GAMESERVER_LINKFLAGS    global GAMESERVER_LIBPATH    global GAMESERVER_CPPPATH        GAMESERVER_CPPPATH = [        "#3rdLib/protobuf-2.3.0/include",        "#3rdLib/ticpp/include",        "#3rdLib/zlib/include",        "#3rdLib/MiniDump/include",        ]    GAMESERVER_LIBPATH = [        "#3rdLib/protobuf-2.3.0/lib",        "#3rdLib/zlib/lib",        "#3rdLib/ticpp/lib",        "#3rdLib/MiniDump/lib",        ],    GAMESERVER_LINKFLAGS = [        "/DEBUG",        "/PDB:\"build/bin/ginlogserver.pdb\""        ],    game_env = env.Clone(CPPPATH = GAMESERVER_CPPPATH, LIBPATH = GAMESERVER_LIBPATH, LIBS = COMMON_LIBS, LINKFLAGS = GAMESERVER_LINKFLAGS)    Export("game_env")    gs_target = SConscript("BGLServer/loginserver/SConscript", variant_dir="build/loginserver", duplicate=0)    gs_install = env.Install("build/bin", gs_target)    def build_selserver():    SEL_LINKFLAGS = [        "/DEBUG",        "/PDB:\"build/bin/selserver.pdb\""        ]    sel_env = env.Clone(CPPPATH = GAMESERVER_CPPPATH, LIBPATH = GAMESERVER_LIBPATH, LIBS = COMMON_LIBS, LINKFLAGS = SEL_LINKFLAGS)    Export("sel_env")    sel_target = SConscript("BGLServer/selectcharserver/SConscript", variant_dir="build/selserver", duplicate=0)    env.Install("build/bin", sel_target)def build_centerserver():    SEL_LINKFLAGS = [        "/DEBUG",        "/PDB:\"build/bin/centerserver.pdb\""        ]    center_env = env.Clone(CPPPATH = GAMESERVER_CPPPATH, LIBPATH = GAMESERVER_LIBPATH, LIBS = COMMON_LIBS, LINKFLAGS = SEL_LINKFLAGS)    Export("center_env")    center_target = SConscript("BGLServer/servercenter/SConscript", variant_dir="build/centerserver", duplicate=0)    env.Install("build/bin", center_target)def start_build():    build_common()    build_gameserver()    build_selserver()    build_centerserver()    #start.............start_build()