From fd92912b6bf084f793232880f6f04b869b5ec18a Mon Sep 17 00:00:00 2001
From: Brannon King <countprimes@gmail.com>
Date: Mon, 30 Sep 2019 13:58:11 -0600
Subject: [PATCH] windows compilation fix round 2

---
 src/prefixtrie.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/prefixtrie.cpp b/src/prefixtrie.cpp
index 3a4062bff..b43dd0d6d 100644
--- a/src/prefixtrie.cpp
+++ b/src/prefixtrie.cpp
@@ -29,7 +29,8 @@ static managed_mapped_file::segment_manager* segmentManager()
         {
             fs::remove(file);
             auto size = (uint64_t)g_memfileSize * 1024ULL * 1024ULL * 1024ULL;
-            menaged_file.reset(new managed_mapped_file(bip::create_only, file.c_str(), size));
+            // using string() to remove w_char filename encoding on Windows
+            menaged_file.reset(new managed_mapped_file(bip::create_only, file.string().c_str(), size));
         }
         ~CSharedMemoryFile()
         {