From 20897d737110ad2a3911c65578e58cead2b8ba25 Mon Sep 17 00:00:00 2001
From: Martin Pärtel <martin.partel@gmail.com>
Date: Wed, 23 Sep 2020 22:35:41 +0300
Subject: Added copy-pasta for flock() required by MacOS / XCode 12.

Fixes #88
---
 ChangeLog    | 1 +
 src/bindfs.c | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 7a90288..78fe040 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,7 @@
 2020-09-23  Martin Pärtel <martin dot partel at gmail dot com>
 
 	* Added missing include for "sys/file.h".
+	* Added flock copy-pasta needed by XCode 12 (issue #88).
 2020-05-13  Martin Pärtel <martin dot partel at gmail dot com>
 
 	* Fixed missing newlines bug with --map-passwd and --map-group
diff --git a/src/bindfs.c b/src/bindfs.c
index 5f82af3..8e561f8 100644
--- a/src/bindfs.c
+++ b/src/bindfs.c
@@ -106,6 +106,13 @@
 #define A_PREFIX   "com"
 #define A_KAUTH_FILESEC_XATTR A_PREFIX ".apple.system.Security"
 #define XATTR_APPLE_PREFIX   "com.apple."
+
+// Yes, Apple asks us to copy/paste these -.-
+#define   LOCK_SH   1    /* shared lock */
+#define   LOCK_EX   2    /* exclusive lock */
+#define   LOCK_NB   4    /* don't block when locking */
+#define   LOCK_UN   8    /* unlock */
+int flock(int fd, int operation);
 #endif
 
 /* We pessimistically assume signed uid_t and gid_t in our overflow checks,
-- 
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