System page improvements

extra_script.py.new

@@ -520,9 +520,14 @@ prebuild(env)
 board="PLATFORM_BOARD_%s"%env["BOARD"].replace("-","_").upper()
 print("Board=#%s#"%board)
 print("BuildFlags=%s"%(" ".join(env["BUILD_FLAGS"])))
+res=[x for x in env["BUILD_FLAGS"] if x.startswith("-D DISPLAY_")]
+if res:
+    epdtype = res[0].split('_')[1]
+else:
+    epdtype = 'unknown'
 env.Append(
     LINKFLAGS=[ "-u", "custom_app_desc" ],
-    CPPDEFINES=[(board,"1")]
+    CPPDEFINES=[(board,"1"), ("BOARD", env["BOARD"]), ("EPDTYPE", epdtype)]
 )
 #script does not run on clean yet - maybe in the future
 env.AddPostAction("clean",cleangenerated)