add lua support for rt-thead

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2399 bbd45198-f89e-11dd-88c7-29a3b14d5316

components/external/lua/SConscript

@@ -1,61 +1,14 @@
-Import('RTT_ROOT')
 Import('rtconfig')
-
-from building import *
 import os
+from building import *
 
-LUA_VERSION = '5.1.4'
-LUA_PATH = 'lua-' + LUA_VERSION
 
-if GetDepend('RT_USING_LUA') and not os.path.exists(LUA_PATH):
-    print '================ERROR============================'
-    print 'Please get lua dist and put them under lua folder'
-    print '================================================='
-    exit(0)
+objs = []
+cwd  = GetCurrentDir()
+list = os.listdir(cwd)
 
-# core source files 
-core_src = Split('''
-lapi.c
-lcode.c
-ldebug.c
-ldo.c
-ldump.c
-lfunc.c
-lgc.c
-llex.c
-lmem.c
-lobject.c
-lopcodes.c
-lparser.c
-lstate.c
-lstring.c
-ltable.c
-ltm.c
-lundump.c
-lvm.c
-lzio.c
-''')
+for item in list:
+    if os.path.isfile(os.path.join(cwd, item, 'SConscript')):
+        objs = objs + SConscript(os.path.join(item, 'SConscript'))
 
-# library source files 
-lib_src = Split('''
-lauxlib.c
-lbaselib.c
-ldblib.c
-liolib.c
-lmathlib.c
-loslib.c
-ltablib.c
-lstrlib.c
-loadlib.c
-linit.c
-''')
-
-src = core_src + lib_src
-
-for item in range(len(src)):
-    src[item] = LUA_PATH + '/src/' + src[item]
-
-CPPPATH = [RTT_ROOT + '/components/external/lua/' + LUA_PATH + '/src']
-group = DefineGroup('lua', src, depend = ['RT_USING_LUA'], CPPPATH = CPPPATH)
-
-Return('group')
+Return('objs')