extmod/btstack/btstack.mk: Add -Wimplicit-fallthrough=0.

jimmo · dpgeorge · commit 2ae3c890bd92 · 2020-11-05T10:13:12.000+11:00
This is needed since -Wextra was added to the build in bef4127 Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
diff --git a/extmod/btstack/btstack.mk b/extmod/btstack/btstack.mk
@@ -66,11 +66,12 @@ endif
 LIB_SRC_C += $(SRC_BTSTACK)
 
 # Suppress some warnings.
-BTSTACK_WARNING_CFLAGS = -Wno-old-style-definition -Wno-unused-variable -Wno-unused-parameter
+BTSTACK_WARNING_CFLAGS = -Wno-old-style-definition -Wno-unused-variable -Wno-unused-parameter -Wimplicit-fallthrough=0
 ifneq ($(CC),clang)
 BTSTACK_WARNING_CFLAGS += -Wno-format
 endif
 $(BUILD)/lib/btstack/src/%.o: CFLAGS += $(BTSTACK_WARNING_CFLAGS)
+$(BUILD)/lib/btstack/platform/%.o: CFLAGS += $(BTSTACK_WARNING_CFLAGS)
 
 endif
 endif
