From 18a1a61ec23be2e9309c2fa5e712a6d38cbc4b17 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 11 Jan 2017 15:39:10 +0530
Subject: [PATCH] Dont use closerange() on OS X

The original motivation for this was OpenGL problems caused by the glfw
library on linux because of inherited file descriptors. Dont know if
that applies on OS X.
---
 kitty/child.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kitty/child.py b/kitty/child.py
index b24135e25..811352913 100644
--- a/kitty/child.py
+++ b/kitty/child.py
@@ -9,7 +9,7 @@ import fcntl
 import signal
 from threading import Thread
 
-from .constants import terminfo_dir
+from .constants import terminfo_dir, isosx
 
 
 def remove_cloexec(fd):
@@ -52,7 +52,8 @@ class Child:
                 else:
                     os.dup2(slave, i)
             os.close(slave), os.close(master)
-            os.closerange(3, 200)
+            if not isosx:  # Apparently some OS X systemlibraries open file descriptors that cause EXC_GUARD crashes when closed
+                os.closerange(3, 200)
             # Establish the controlling terminal (see man 7 credentials)
             os.close(os.open(os.ttyname(1), os.O_RDWR))
             os.environ['TERM'] = self.opts.term