Always include <sys/cdefs.h>.
I made a mistake caught by code review earlier, so let's try to be
safer by default.
This patch also moves all our "forwarding" headers to the guardless
just-include-the-other-thing style that we usually use. (Where we
have a comment explaining where the header comes from, I've kept
that.)
Change-Id: I37342cf5e2563c6a269b2ba61a697069b1c7913b
diff --git a/libc/include/sys/ucontext.h b/libc/include/sys/ucontext.h
index f252a37..fdb3015 100644
--- a/libc/include/sys/ucontext.h
+++ b/libc/include/sys/ucontext.h
@@ -30,6 +30,7 @@
#define _SYS_UCONTEXT_H_
#include <signal.h>
+#include <sys/cdefs.h>
#include <sys/user.h>
__BEGIN_DECLS