From b706548e6cd5c8d9c281529086779c233a23df47 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Mon, 27 Jan 2020 02:13:22 -0500
Subject: [PATCH] Fix MinGW compile Also see
 https://groups.google.com/d/msg/cryptopp-users/fVLk79sIBEE/Euhu6x9nAQAJ

---
 validate.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/validate.h b/validate.h
index 7695e692..7af6c378 100644
--- a/validate.h
+++ b/validate.h
@@ -212,6 +212,9 @@ inline std::string TimeToString(const time_t& t)
 	CRYPTOPP_ASSERT(err == 0);
 
 	std::string str(err == 0 ? timeBuf : "");
+#elif defined(__MINGW32__) || defined(__MINGW64__)
+	char* timeString = ::asctime(::localtime(&t));
+	std::string str(timeString ? timeString : "");
 #elif (_POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _BSD_SOURCE || _SVID_SOURCE || defined(_POSIX_SOURCE))
 	tm localTime;
 	char timeBuf[64];