import os
import sys
import rtconfig
from SCons.Script import *

if os.getenv('RTT_ROOT'):
    RTT_ROOT = os.getenv('RTT_ROOT')
else:
    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')

sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
try:
    from building import *
except:
    print('Cannot find RT-Thread root directory, please check RTT_ROOT')
    print(RTT_ROOT)
    exit(-1)

TARGET = 'rtthread.' + rtconfig.TARGET_EXT

DefaultEnvironment(tools=[])
env = Environment(tools=['mingw'],
    AS=rtconfig.AS, ASFLAGS=rtconfig.AFLAGS,
    CC=rtconfig.CC, CFLAGS=rtconfig.CFLAGS,
    AR=rtconfig.AR, ARFLAGS='-rc',
    LINK=rtconfig.LINK, LINKFLAGS=rtconfig.LFLAGS)
env.PrependENVPath('PATH', rtconfig.EXEC_PATH)

Export('RTT_ROOT')
Export('rtconfig')

objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
DoBuilding(TARGET, objs)