From 8a7669993ede67715812371a5cbb29d6c5eb24be Mon Sep 17 00:00:00 2001
From: Christopher Dykes <cdykes@fb.com>
Date: Tue, 28 Mar 2017 11:21:24 -0700
Subject: [PATCH] Implement S_ISDIR()

Summary: It's needed downstream in HHVM.

Reviewed By: yfeldblum

Differential Revision: D4785204

fbshipit-source-id: fe81ed8e23497fffeb44b2a366c457b788bcaada
---
 folly/portability/SysStat.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/folly/portability/SysStat.h b/folly/portability/SysStat.h
index 0901f9ae..89acc45c 100755
--- a/folly/portability/SysStat.h
+++ b/folly/portability/SysStat.h
@@ -35,6 +35,8 @@
 #define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
 #define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
 
+#define S_ISDIR(mode) (((mode) & _S_IFDIR) == _S_IFDIR ? 1 : 0)
+
 // This isn't defined anywhere, so give a sane value.
 #define MAXSYMLINKS 255
 
-- 
2.34.1