From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Mon, 13 Mar 2017 07:11:24 +0000 (-0400)
Subject: headers: check that __INCLUDE_LEVEL__ is defined before using it (#5575)
X-Git-Tag: chiark/234.4-1+devuan1.1+iwj1~176
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=db7ee65da7690a8a1bc488f7ec80b1228b3a8e79

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.
---

diff --git a/src/systemd/_sd-common.h b/src/systemd/_sd-common.h
index 3bb886be7..97c394386 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_