rt-thread/bsp/cvitek/c906_little/SConstruct

import os
import sys
import rtconfig

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')]
from building import *

TARGET = 'rtthread.' + rtconfig.TARGET_EXT

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

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

SDK_ROOT = os.path.abspath('./')

if os.path.exists(SDK_ROOT + '/drivers'):
    drivers_path_prefix = SDK_ROOT + '/drivers'
else:
    drivers_path_prefix = os.path.dirname(SDK_ROOT) + '/drivers'

# prepare building environment
objs = PrepareBuilding(env, RTT_ROOT, has_libcpu = False)

# include libraries
objs.extend(SConscript(drivers_path_prefix + '/SConscript', variant_dir='build/drivers', duplicate=0))

if GetDepend('BOARD_TYPE_MILKV_DUO256M'):
    env['LINKFLAGS'] = env['LINKFLAGS'].replace('cv180x_lscript.ld', 'cv181x_lscript.ld')
    env['LINKFLAGS'] = env['LINKFLAGS'].replace('-L board/script/cv180x', '-L board/script/cv181x')

# make a building
DoBuilding(TARGET, objs)