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-rw-r--r--sbin/unwind/libunbound/config.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sbin/unwind/libunbound/config.h b/sbin/unwind/libunbound/config.h
index bfa7d8c0821..25bb0ba97c6 100644
--- a/sbin/unwind/libunbound/config.h
+++ b/sbin/unwind/libunbound/config.h
@@ -2,7 +2,11 @@
/* config.h.in. Generated from configure.ac by autoheader. */
/* apply the fallthrough attribute. */
+#if defined(__clang__)
#define ATTR_FALLTHROUGH __attribute__((fallthrough));
+#else
+#define ATTR_FALLTHROUGH
+#endif
/* apply the noreturn attribute to a function that exits the program */
#define ATTR_NORETURN __attribute__((__noreturn__))