From 3cd9a23e80d914c16e74b1c34a397e665812591a Mon Sep 17 00:00:00 2001
From: Gisle Vanem <gisle.vanem@gmail.com>
Date: Thu, 15 Jul 2021 13:14:04 +0200
Subject: [PATCH] [PellesC] missing '_tcsnccmp'

PellesC compiler does not have this macro in it's `<tchar.h>`
---
 lib/vtls/schannel.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/vtls/schannel.c b/lib/vtls/schannel.c
index c91f43b23d..fa6f84fa5c 100644
--- a/lib/vtls/schannel.c
+++ b/lib/vtls/schannel.c
@@ -143,6 +143,16 @@
 
 #define BACKEND connssl->backend
 
+/* PellesC v10 does not have this in it's <tchar.h>
+ */
+#ifndef _tcsnccmp
+#  ifdef UNICODE
+#    define _tcsnccmp wcsncmp
+#  else
+#    define _tcsnccmp strncmp
+#  endif
+#endif
+
 static Curl_recv schannel_recv;
 static Curl_send schannel_send;