From 8aef119f43ee3b4e75e0f3bd7ea28cf7b29bb582 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Thu, 13 Dec 2012 02:23:05 +0100
Subject: [PATCH] Mingw support for Windows LevelDB port

---
 src/leveldb/build_detect_platform | 10 ++++++++++
 src/leveldb/util/env_posix.cc     |  3 +++
 2 files changed, 13 insertions(+)

diff --git a/src/leveldb/build_detect_platform b/src/leveldb/build_detect_platform
index 5307c9a4f..caf2352f9 100755
--- a/src/leveldb/build_detect_platform
+++ b/src/leveldb/build_detect_platform
@@ -127,6 +127,16 @@ case "$TARGET_OS" in
         # man ld: +h internal_name
         PLATFORM_SHARED_LDFLAGS="-shared -Wl,+h -Wl,"
         ;;
+    OS_WINDOWS_CROSSCOMPILE | NATIVE_WINDOWS)
+        PLATFORM=OS_WINDOWS
+        COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_WINDOWS -DLEVELDB_PLATFORM_WINDOWS"
+        PLATFORM_SHARED_CFLAGS=""
+        PLATFORM_SOURCES="util/env_win.cc"
+        PLATFORM_CXXFLAGS="-std=c++0x"
+        PLATFORM_LIBS="-lshlwapi -ldbghelp"
+        PORT_FILE=port/port_win.cc
+        CROSS_COMPILE=true
+        ;;
     *)
         echo "Unknown platform!" >&2
         exit 1
diff --git a/src/leveldb/util/env_posix.cc b/src/leveldb/util/env_posix.cc
index 78e09c95c..db81f56d1 100644
--- a/src/leveldb/util/env_posix.cc
+++ b/src/leveldb/util/env_posix.cc
@@ -1,6 +1,7 @@
 // Copyright (c) 2011 The LevelDB Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
+#if !defined(LEVELDB_PLATFORM_WINDOWS)
 
 #include <deque>
 #include <set>
@@ -696,3 +697,5 @@ Env* Env::Default() {
 }
 
 }  // namespace leveldb
+
+#endif