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-rw-r--r--src/common/tusb_compiler.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/common/tusb_compiler.h b/src/common/tusb_compiler.h
index dce32e92b..5ab56e145 100644
--- a/src/common/tusb_compiler.h
+++ b/src/common/tusb_compiler.h
@@ -138,7 +138,7 @@
#define TU_ATTR_BIT_FIELD_ORDER_BEGIN
#define TU_ATTR_BIT_FIELD_ORDER_END
- #if defined(__XC16)
+ #if __GNUC__ < 5
#define TU_ATTR_FALLTHROUGH do {} while (0) /* fallthrough */
#else
#if __has_attribute(__fallthrough__)