From f4e8084414e07a8e03cb279090bbcf9eea76ed1e Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Wed, 15 Nov 2023 10:04:57 -0500
Subject: config: New attr_maybe_unused macro

---
 src/config.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'src/config.h')

diff --git a/src/config.h b/src/config.h
index a474fb3..9f95674 100644
--- a/src/config.h
+++ b/src/config.h
@@ -186,7 +186,7 @@ typedef long double max_align_t;
 // Wrappers for attributes
 
 /**
- * Silence compiler warnings about switch/case fall-throughs.
+ * Silence warnings about switch/case fall-throughs.
  */
 #if __has_c_attribute(fallthrough)
 #  define fallthru [[fallthrough]]
@@ -196,6 +196,17 @@ typedef long double max_align_t;
 #  define fallthru ((void)0)
 #endif
 
+/**
+ * Silence warnings about unused declarations.
+ */
+#if __has_c_attribute(maybe_unused)
+#  define attr_maybe_unused [[maybe_unused]]
+#elif __has_attribute(unused)
+#  define attr_maybe_unused __attribute__((unused))
+#else
+#  define attr_maybe_unused
+#endif
+
 /**
  * Warn if a value is unused.
  */
-- 
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