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From c1e4a9e5f7839fa35661069e2aaf600a915f0c6b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Mon, 13 Mar 2017 03:11:24 -0400
Subject: [PATCH] headers: check that __INCLUDE_LEVEL__ is defined before using
 it (#5575)

That macro is a gcc extension, and while widely supported, not ubiquitous.
In particular the coverity scanner is having trouble with it.
(cherry picked from commit 1070d271fa8fa553d57dd5f74dd1e3f60732d0b9)
---
 src/systemd/_sd-common.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/systemd/_sd-common.h b/src/systemd/_sd-common.h
index 3bb886b..97c3943 100644
--- a/src/systemd/_sd-common.h
+++ b/src/systemd/_sd-common.h
@@ -22,8 +22,8 @@
 
 /* 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."
+#if defined(__INCLUDE_LEVEL__) && __INCLUDE_LEVEL__ <= 1
+#  error "Do not include _sd-common.h directly; it is a private header."
 #endif
 
 #ifndef _sd_printf_
-- 
2.9.3