Add missing include

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

diff --git a/src/lxc/lxc_attach.c b/src/lxc/lxc_attach.c
index fc8e3ba5a7e7420926d10bdeedb06beb81c2eebd..3fbcb82a2ae2f8e0b927fbb0d11eb8abf2838a45 100644 (file)
--- a/src/lxc/lxc_attach.c
+++ b/src/lxc/lxc_attach.c
@@ -22,6 +22,7 @@
  */
 
 #define _GNU_SOURCE
+#include <assert.h>
 #include <sys/wait.h>
 #include <sys/types.h>
 #include <stdlib.h>