From fd1b903adb6f7b06d263fcb6a4ae01d734b2c8d4 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 19 Nov 2013 01:09:48 +0100
Subject: [PATCH] include: make direct includion of _sd-common.h harder

---
 src/systemd/_sd-common.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/systemd/_sd-common.h b/src/systemd/_sd-common.h
index 594ff3db2..cc3be9380 100644
--- a/src/systemd/_sd-common.h
+++ b/src/systemd/_sd-common.h
@@ -24,6 +24,10 @@
 
 /* This is a private header, never even think of including this directly! */
 
+#if __INCLUDE_LEVEL__ <= 1
+#error "Do not include _sd-common.h directly, it is a private header."
+#endif
+
 #ifndef _sd_printf_
 #  if __GNUC__ >= 4
 #    define _sd_printf_(a,b) __attribute__ ((format (printf, a, b)))
-- 
2.30.2