From 5a9cb61d6989d80c878162b54b08f1836c522398 Mon Sep 17 00:00:00 2001
From: Ruini Xue <xueruini@gmail.com>
Date: Thu, 28 Jun 2018 23:21:26 +0800
Subject: [PATCH] Use preserve mode to copy headers.

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index a0fcb2bc56..78c1acb892 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ tests: lib
 ifndef WINDOWS
 install: no_test
 	mkdir -p $(DESTDIR)/include/mbedtls
-	cp -r include/mbedtls $(DESTDIR)/include
+	cp -rp include/mbedtls $(DESTDIR)/include
 
 	mkdir -p $(DESTDIR)/lib
 	cp -RP library/libmbedtls.*    $(DESTDIR)/lib