add SConscript

SConscript

@@ -0,0 +1,20 @@
+Import('RTT_ROOT')
+from building import *
+
+# get current directory
+cwd = GetCurrentDir()
+
+# The set of source files associated with this SConscript file.
+src = Glob('qxwz_sdk/*.c')
+
+LIBPATH = [cwd + '/qxwz_lib']
+LIBS = ['QXSI_RTCM32_RTK_1.2.2.09c45bdb.20190920_STM32-KEIL']
+
+if GetDepend(['PKG_USING_QXWZ_EXAMPLE']):
+    src += Glob('samples/*.c')
+
+path = [cwd + '/qxwz_sdk']
+
+group = DefineGroup('qxwz', src, depend = ['PKG_USING_QXWZ'], CPPPATH = path, LIBS = LIBS, LIBPATH=LIBPATH)
+
+Return('group')