From 7888b2ba15528a7caa24f6923203a55cc38087ed Mon Sep 17 00:00:00 2001
From: Manuel Jacob <me@manueljacob.de>
Date: Sun, 4 Oct 2015 13:53:23 +0200
Subject: [PATCH] Define SOL_LOCAL if not defined already (e.g. on FreeBSD).

Some evidence that defining it to be 0 is right:
* OS X headers define it to be 0.
* Other code uses 0 instead of SOL_LOCAL to check for peer credentials
  (e.g. FreeBSD's implementation of getpeereid).
---
 src/nix-daemon/nix-daemon.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/nix-daemon/nix-daemon.cc b/src/nix-daemon/nix-daemon.cc
index aaae691e9..1d0ff701f 100644
--- a/src/nix-daemon/nix-daemon.cc
+++ b/src/nix-daemon/nix-daemon.cc
@@ -692,6 +692,10 @@ static PeerInfo getPeerInfo(int remote)
 
 #elif defined(LOCAL_PEERCRED)
 
+#if !defined(SOL_LOCAL)
+#define SOL_LOCAL 0
+#endif
+
     xucred cred;
     socklen_t credLen = sizeof(cred);
     if (getsockopt(remote, SOL_LOCAL, LOCAL_PEERCRED, &cred, &credLen) == -1)