From bc0ea5c466e7ce69df96ea410b2a84f7312cf1a0 Mon Sep 17 00:00:00 2001
From: Ted Nyman <ted@github.com>
Date: Sun, 19 Jun 2016 22:14:41 -0700
Subject: [PATCH] Do not define _XOPEN_SOURCE for OS X

Resolves failed `make` on OS X.
---
 fmacros.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fmacros.h b/fmacros.h
index 24c9bac..14fed60 100644
--- a/fmacros.h
+++ b/fmacros.h
@@ -13,8 +13,10 @@
 #if defined(__sun__)
 #define _POSIX_C_SOURCE 200112L
 #else
+#if !(defined(__APPLE__) && defined(__MACH__))
 #define _XOPEN_SOURCE 600
 #endif
+#endif
 
 #if defined(__APPLE__) && defined(__MACH__)
 #define _OSX