fix keil armcc compiling report "Error: expected an expression"

bsp/stm32f10x/rtconfig.py

@@ -79,6 +79,7 @@ elif PLATFORM == 'armcc':
     AFLAGS = DEVICE
     LFLAGS = DEVICE + ' --info sizes --info totals --info unused --info veneers --list rtthread-stm32.map --scatter stm32_rom.sct'
 
+    CFLAGS += ' --c99'
     CFLAGS += ' -I' + EXEC_PATH + '/ARM/RV31/INC'
     LFLAGS += ' --libpath ' + EXEC_PATH + '/ARM/RV31/LIB'
 

bsp/stm32f10x/template.uvproj

@@ -347,6 +347,7 @@
             <wLevel>0</wLevel>
             <uThumb>0</uThumb>
             <uSurpInc>0</uSurpInc>
+            <uC99>1</uC99>
             <VariousControls>
               <MiscControls></MiscControls>
               <Define></Define>

bsp/stm32f10x/template.uvprojx

@@ -350,6 +350,7 @@
             <wLevel>0</wLevel>
             <uThumb>0</uThumb>
             <uSurpInc>0</uSurpInc>
+            <uC99>1</uC99>
             <VariousControls>
               <MiscControls></MiscControls>
               <Define></Define>