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-rw-r--r--erts/emulator/beam/sys.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 9a205d50d3..dfe82cab44 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -154,8 +154,9 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType;
# define ERTS_WRITE_UNLIKELY(X) X
#endif
+/* clang may have too low __GNUC__ versions but can handle it */
#ifdef __GNUC__
-# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5)
+# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5) || defined(__clang__)
# define ERTS_DECLARE_DUMMY(X) X __attribute__ ((unused))
# else
# define ERTS_DECLARE_DUMMY(X) X