From 6fb361a965e8abf61313f7f5dc00468f37ef7846 Mon Sep 17 00:00:00 2001
From: Andrew Johnson <anj@anl.gov>
Date: Mon, 3 Aug 2020 12:25:31 -0500
Subject: [PATCH] Fix Cygwin TCP_NODELAY issue from Paul Chu & Freddie

Conflicts:
	documentation/RELEASE_NOTES.md
---
 modules/libcom/src/osi/os/cygwin32/osdSock.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/libcom/src/osi/os/cygwin32/osdSock.h b/modules/libcom/src/osi/os/cygwin32/osdSock.h
index 123f2404f..edb30c55e 100644
--- a/modules/libcom/src/osi/os/cygwin32/osdSock.h
+++ b/modules/libcom/src/osi/os/cygwin32/osdSock.h
@@ -26,6 +26,9 @@
 #include <net/if.h>
 #include <netdb.h>
 #include <unistd.h> /* close() and others */
+#ifndef TCP_NODELAY
+#  include <netinet/tcp.h>
+#endif
 
 
 typedef int                     SOCKET;