From: Francesco Chemolli <kinkie@squid-cache.org>
Date: Sat, 20 Feb 2016 15:08:59 +0000 (+1300)
Subject: Bug 4323: Netfilter broken cross-includes with Linux 4.2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7754bb73ef244f5a46e29f7f240f59be877a5baa;p=thirdparty%2Fsquid.git

Bug 4323: Netfilter broken cross-includes with Linux 4.2
---

diff --git a/compat/os/linux.h b/compat/os/linux.h
index da5111d7d8..2f1c96f340 100644
--- a/compat/os/linux.h
+++ b/compat/os/linux.h
@@ -21,6 +21,21 @@
 #define HAVE_RES_INIT  HAVE___RES_INIT
 #endif
 
+/*
+ * Netfilter header madness. (see Bug 4323)
+ *
+ * Netfilter have a history of defining their own versions of network protocol
+ * primitives without sufficient protection against the POSIX defines which are
+ * aways present in Linux.
+ *
+ * netinet/in.h must be included before any other sys header in order to properly
+ * activate include guards in <linux/libc-compat.h> the kernel maintainers added
+ * to workaround it.
+ */
+#if HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
 /*
  * sys/capability.h is only needed in Linux apparently.
  *