From 5adef73d2671dd9e5feb73ddb4adcd917fcff780 Mon Sep 17 00:00:00 2001
From: Tony Tung <ttung@fb.com>
Date: Mon, 29 Aug 2016 21:56:17 -0700
Subject: [PATCH] [cdatapack] don't define _BSD_SOURCE if it's already defined

Summary: On some platforms, it's defined by errno.h.  WTF.

Test Plan: make local

Reviewers: #fastmanifest, zamsden, durham

Reviewed By: durham

Subscribers: mitrandir, mjpieters

Differential Revision: https://phabricator.intern.facebook.com/D3789066

Signature: t1:3789066:1472521513:1b53feab3f46b55b2b0f4d20f82b829f304f5daf
---
 remotefilelog/cdatapack/cdatapack.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/remotefilelog/cdatapack/cdatapack.c b/remotefilelog/cdatapack/cdatapack.c
index 559800f0ca..b060aacac5 100644
--- a/remotefilelog/cdatapack/cdatapack.c
+++ b/remotefilelog/cdatapack/cdatapack.c
@@ -12,7 +12,9 @@
 #include <sys/mman.h>
 
 #if defined(__linux__)
+#if !defined(_BSD_SOURCE)
 #define _BSD_SOURCE
+#endif /* #if !defined(_BSD_SOURCE) */
 #include <endian.h>
 #define ntohll be64toh