From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Wed, 15 Jun 2022 19:00:35 +0000 (-0400)
Subject: Build fix: unknown warning -Wduplicated-branches
X-Git-Url: https://git.liburcu.org/?p=lttng-tools.git;a=commitdiff_plain;h=efc2642c22639e9af4bd01953bfd4453f6218f61

Build fix: unknown warning -Wduplicated-branches

-Wduplicated-branches was introduced in GCC 7. Only define
DIAGNOSTIC_IGNORE_DUPLICATED_BRANCHES for those more recent versions.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: I3b50a671867a74629519375801bf2b4f3c597cd8
---

diff --git a/src/common/macros.hpp b/src/common/macros.hpp
index 37e6cabcf..cfe6eb528 100644
--- a/src/common/macros.hpp
+++ b/src/common/macros.hpp
@@ -276,9 +276,13 @@ void *memmove(T *d, const U *s, size_t n) = delete;
 	_Pragma("GCC diagnostic ignored \"-Wformat-nonliteral\"")
 # define DIAGNOSTIC_IGNORE_LOGICAL_OP \
 	_Pragma("GCC diagnostic ignored \"-Wlogical-op\"")
-# define DIAGNOSTIC_IGNORE_DUPLICATED_BRANCHES \
+#if __GNUG__ && __GNUC__ >= 7
+# define DIAGNOSTIC_IGNORE_DUPLICATED_BRANCHES				\
 	_Pragma("GCC diagnostic ignored \"-Wduplicated-branches\"")
-# define DIAGNOSTIC_IGNORE_INVALID_OFFSETOF \
+#else
+# define DIAGNOSTIC_IGNORE_DUPLICATED_BRANCHES
+#endif /* __GNUG__ && __GNUC__ >= 7 */
+# define DIAGNOSTIC_IGNORE_INVALID_OFFSETOF				\
 	_Pragma("GCC diagnostic ignored \"-Winvalid-offsetof\"")
 #endif