[FIX] CI build error

Author: WKJay

projects/art_pi_factory/.settings/projcfg.ini

@@ -1,19 +1,19 @@
 #RT-Thread Studio Project Configuration
-#Wed Oct 21 21:27:43 CST 2020
+#Wed Oct 21 22:04:18 CST 2020
 cfg_version=v3.0
 board_name=STM32H750-RT-ART-PI
 example_name=art_pi_factory
 hardware_adapter=ST-LINK
 board_base_nano_proj=False
 project_type=rt-thread
 chip_name=STM32H750XBHx
-selected_rtt_version=4.0.2
 bsp_version=0.3.0
+selected_rtt_version=4.0.2
 os_branch=full
-output_project_path=E\:/Personal/RTT-Studio-Projects/sdk-bsp-stm32h750-realthread-artpimy/projects
-is_base_example_project=True
-is_use_scons_build=True
 project_base_bsp=true
+is_use_scons_build=True
+is_base_example_project=True
+output_project_path=E\:/Personal/RTT-Studio-Projects/sdk-bsp-stm32h750-realthread-artpimy/projects
 project_name=art_pi_factory
-os_version=4.0.2
 bsp_path=repo/Local/Board_Support_Packages/RealThread/STM32H750-RT-ART-PI/0.3.0/sdk-bsp-stm32h750-realthread-artpi-master
+os_version=4.0.2

projects/art_pi_factory/packages/btstack-v0.0.1/SConscript

@@ -56,7 +56,9 @@ path += [cwd + '/chipset/bcm']
 path += [cwd + '/port/posix-h4-bcm']
 path += [cwd + '/rtt_adapter']
 
-LOCAL_CCFLAGS = ' --gnu'
+if rtconfig.CROSS_TOOL == 'keil':
+    LOCAL_CCFLAGS = ' --gnu'
+
 group = DefineGroup('RTT_BTSTACK', src, depend = [''], CPPPATH = path, LOCAL_CCFLAGS = LOCAL_CCFLAGS)
 
 Return('group')