继续fix stm32f767 的lf问题

bsp/stm32/stm32f767-st-nucleo/SConstruct

@@ -1,47 +1,47 @@
-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')]
-try:
-    from building import *
-except:
-    print('Cannot found RT-Thread root directory, please check RTT_ROOT')
-    print(RTT_ROOT)
-    exit(-1)
-
-TARGET = 'rt-thread.' + rtconfig.TARGET_EXT
-
-env = Environment(tools = ['mingw'],
-    AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
-    CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
-    AR = rtconfig.AR, ARFLAGS = '-rc',
-    LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
-env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
-
-if rtconfig.PLATFORM == 'iar':
-    env.Replace(CCCOM = ['$CC $CCFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS -o $TARGET $SOURCES'])
-    env.Replace(ARFLAGS = [''])
-    env.Replace(LINKCOM = env["LINKCOM"] + ' --map rt-thread.map')
-
-Export('RTT_ROOT')
-Export('rtconfig')
-
-# prepare building environment
-objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
-
-SDK_ROOT = os.path.abspath('./')
-
-# include drivers
-objs.extend(SConscript(os.path.dirname(SDK_ROOT) + '/libraries/STM32F7xx_HAL/SConscript'))
-
-# include libraries
-objs.extend(SConscript(os.path.dirname(SDK_ROOT) + '/libraries/HAL_Drivers/SConscript'))
-
-# make a building
-DoBuilding(TARGET, objs)
+import os
+import sys
+import rtconfig
+
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
+
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+try:
+    from building import *
+except:
+    print('Cannot found RT-Thread root directory, please check RTT_ROOT')
+    print(RTT_ROOT)
+    exit(-1)
+
+TARGET = 'rt-thread.' + rtconfig.TARGET_EXT
+
+env = Environment(tools = ['mingw'],
+    AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+    CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
+    AR = rtconfig.AR, ARFLAGS = '-rc',
+    LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+
+if rtconfig.PLATFORM == 'iar':
+    env.Replace(CCCOM = ['$CC $CCFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS -o $TARGET $SOURCES'])
+    env.Replace(ARFLAGS = [''])
+    env.Replace(LINKCOM = env["LINKCOM"] + ' --map rt-thread.map')
+
+Export('RTT_ROOT')
+Export('rtconfig')
+
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
+
+SDK_ROOT = os.path.abspath('./')
+
+# include drivers
+objs.extend(SConscript(os.path.dirname(SDK_ROOT) + '/libraries/STM32F7xx_HAL/SConscript'))
+
+# include libraries
+objs.extend(SConscript(os.path.dirname(SDK_ROOT) + '/libraries/HAL_Drivers/SConscript'))
+
+# make a building
+DoBuilding(TARGET, objs)