compiler: fix fallthrough attribute

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

diff --git a/src/lxc/compiler.h b/src/lxc/compiler.h
index c230e510cea4d25c2082a39608d76f24bb23154b..755c21d5242497f1160d66f86d8176fb2ee86fdc 100644 (file)
--- a/src/lxc/compiler.h
+++ b/src/lxc/compiler.h
@@ -19,7 +19,9 @@
 #endif
 #endif
 
-#ifndef __fallthrough
+#if __GNUC__ >= 7
+#define __fallthrough __attribute__((__fallthrough__))
+#else
 #define __fallthrough /* fall through */
 #endif