From 75e6ac534eadc59c4cc6cdb471a1901b59f0ad24 Mon Sep 17 00:00:00 2001
From: John Safranek <john@wolfssl.com>
Date: Wed, 18 Dec 2013 10:58:10 -0800
Subject: [PATCH] Force Cygwin to use function tolower() rather than macro
 version

---
 cyassl/ctaocrypt/types.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cyassl/ctaocrypt/types.h b/cyassl/ctaocrypt/types.h
index f873592e3..c5075c51c 100644
--- a/cyassl/ctaocrypt/types.h
+++ b/cyassl/ctaocrypt/types.h
@@ -217,6 +217,11 @@ enum {
         #define XISALPHA(c)     isalpha((c))
     #endif
     /* needed by CyaSSL_check_domain_name() */
+    #ifdef __CYGWIN__
+        /* Cygwin uses a macro version of tolower() by default, use the
+         * function version. */
+        #undef tolower
+    #endif
     #define XTOLOWER(c)      tolower((c))
 #endif