diff --git a/building.py b/building.py
index 018e86e..27b21f2 100644
--- a/building.py
+++ b/building.py
@@ -24,6 +24,7 @@
 #                             group definition.
 #
 
+from math import fabs
 import os
 import sys
 import string
@@ -335,9 +336,12 @@ def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = [
 
     # parse rtconfig.h to get used component
     PreProcessor = PatchedPreProcessor()
-    f = open(rtt_cfg, 'r')
-    contents = f.read()
-    f.close()
+    contents = ''
+    if os.path.isfile(rtt_cfg):
+        f = open(rtt_cfg, 'r')
+        contents = f.read()
+        f.close()
+
     PreProcessor.process_contents(contents)
     BuildOptions = PreProcessor.cpp_namespace
 
@@ -725,7 +729,10 @@ def BuildLibInstallAction(target, source, env):
             do_copy_file(lib_name, dst_name)
             break
 
-def DoBuilding(target, objects, is_rtt = False):
+def DoBuildingLib(lib, objects):
+    DoBuilding(lib, objects, build_lib=True)
+
+def DoBuilding(target, objects, is_rtt = False, build_lib = False):
 
     # merge all objects into one list
     def one_list(l):
@@ -757,7 +764,11 @@ def DoBuilding(target, objects, is_rtt = False):
 
     program = None
     # check whether special buildlib option
-    lib_name = GetOption('buildlib')
+    if build_lib:
+        lib_name = target
+    else:
+        lib_name = GetOption('buildlib')
+
     if lib_name:
         objects = [] # remove all of objects
         # build library with special component
@@ -790,6 +801,7 @@ def DoBuilding(target, objects, is_rtt = False):
     EndBuilding(target, program, is_rtt)
 
 def GenTargetProject(program = None):
+    need_exit = True
 
     if GetOption('target') == 'mdk':
         from keil import MDKProject
@@ -865,6 +877,8 @@ def GenTargetProject(program = None):
     if GetOption('target') == 'cmake' or GetOption('target') == 'cmake-armclang':
         from cmake import CMakeProject
         CMakeProject(Env,Projects)
+    
+    return need_exit
 
 
 def EndBuilding(target, program = None, is_rtt = False):
@@ -891,7 +905,7 @@ def EndBuilding(target, program = None, is_rtt = False):
         Clean(target, 'gen_ports/gen_ports_cpp.cpp')
 
     if GetOption('target'):
-        GenTargetProject(program)
+        need_exit = GenTargetProject(program)
 
     BSP_ROOT = Dir('#').abspath
     if GetOption('make-dist') and program != None:
diff --git a/sharelib.py b/sharelib.py
index 3fb8d82..bdc3584 100644
--- a/sharelib.py
+++ b/sharelib.py
@@ -24,6 +24,28 @@ Return('group')
 
 '''
 
+SharelibMainSconscript = '''
+# for package compiling
+import os
+from building import *
+
+cwd = GetCurrentDir()
+objs = []
+list = os.listdir(cwd)
+CPPPATH = [cwd]
+Import('SHARE_LIB_HANDLE')
+
+for d in list:
+    if SHARE_LIB_HANDLE.is_this_lib(d):
+        continue
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')
+
+'''
+
 class SharelibItem:
     '''
         share lib handler
@@ -117,13 +139,10 @@ class SharelibHandler:
         kcfg.close()
 
     def __gen_ports(self, share_lib_path):
-        if self._lib_name != "rt-thread":
-            return False
-
         import json
 
-        init_c_path = os.path.join(os.getcwd(), "gen_ports/gen_ports_c.c")
-        init_cpp_path = os.path.join(os.getcwd(), "gen_ports/gen_ports_cpp.cpp")
+        init_c_path = os.path.join(os.getcwd(), "gen_ports", "gen_ports_c.c")
+        init_cpp_path = os.path.join(os.getcwd(), "gen_ports", "gen_ports_cpp.cpp")
 
         finit_c = open(init_c_path, 'w+')
         finit_cpp = open(init_cpp_path, 'w+')
@@ -175,12 +194,22 @@ class SharelibHandler:
 
         finit_c.close()
         finit_cpp.close()
+    def __init_sconscipt(self, share_lib_path):
 
-    def export(self, share_lib_path):
+        port_file = os.path.join(share_lib_path, "SConscript")
+        if os.path.isfile(port_file):
+            return False
+        
+        with open(port_file, 'w+') as pf:
+            pf.write(SharelibMainSconscript)
+
+    def export(self, share_lib_path, gen_ports = False):
         reserved_subdir = ['.git', 
         'README.md', '.gitignore', '.gitmodules', '.gitattributes',
         '.drone.yml']
 
+        self.__init_sconscipt(share_lib_path)
+
         dist_path = share_lib_path + '/' + self._lib_name
         if os.path.exists(dist_path):
             for d in os.listdir(dist_path):
@@ -239,7 +268,8 @@ class SharelibHandler:
         with open(dist_path + '/package.json','w+') as f:
             json.dump(data,f, sort_keys=True, indent=4, separators=(',', ': '))
 
-        self.__gen_ports(share_lib_path)
+        if gen_ports:
+            self.__gen_ports(share_lib_path)
 
         self.update_sharelib(share_lib_path)