compiler: add __unused attribute

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/compiler.h b/src/lxc/compiler.h
index e8adf37c470ec7bb90fad5580febc7aed76f23b2..2774c6334dc7781ff995b13f81076c45bb95b306 100644 (file)
--- a/src/lxc/compiler.h
+++ b/src/lxc/compiler.h
@@ -45,6 +45,13 @@
 #define __returns_twice __attribute__((returns_twice))
 #endif
 
+/* This attribute is required to silence clang warnings */
+#if defined(__GNUC__)
+#define __unused __attribute__ ((unused))
+#else
+#define __unused
+#endif
+
 #define __cgfsng_ops
 
 #endif /* __LXC_COMPILER_H */