From 91b0730c332c0c511fe13095af368c1fa267ca7f Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Tue, 30 Jun 2015 22:25:15 -0400
Subject: [PATCH] Fixed compile on Cygwin x86_64. Thanks to Alex Afanasyev

---
 osrng.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/osrng.h b/osrng.h
index ae07d057..3a6dd2cc 100644
--- a/osrng.h
+++ b/osrng.h
@@ -30,11 +30,16 @@ class CRYPTOPP_DLL MicrosoftCryptoProvider
 public:
 	MicrosoftCryptoProvider();
 	~MicrosoftCryptoProvider();
-#if defined(_WIN64)
-	typedef unsigned __int64 ProviderHandle;	// type HCRYPTPROV, avoid #include <windows.h>
+
+// type HCRYPTPROV, avoid #include <windows.h>
+#if defined(__CYGWIN__) && defined(__x86_64__)
+	typedef unsigned long long ProviderHandle;
+#elif defined(_WIN64)
+	typedef unsigned __int64 ProviderHandle;
 #else
 	typedef unsigned long ProviderHandle;
 #endif
+
 	ProviderHandle GetProviderHandle() const {return m_hProvider;}
 private:
 	ProviderHandle m_hProvider;