From e053d30bf75f311778ad745f7859a9733d6ce2e3 Mon Sep 17 00:00:00 2001
From: darkf <lw9k123@gmail.com>
Date: Sat, 15 Aug 2015 23:41:40 -0700
Subject: [PATCH] Fix building under MinGW

---
 CMakeLists.txt            |  3 ++-
 src/common/common_funcs.h | 12 +++++++++---
 src/common/file_util.h    |  2 +-
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 00d71dbdc3..6cdac11775 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -155,7 +155,8 @@ IF (APPLE)
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")
 ELSEIF(MINGW)
     # GCC does not support codecvt, so use iconv instead
-    set(PLATFORM_LIBRARIES winmm ws2_32 iconv)
+    # PSAPI is the Process Status API
+    set(PLATFORM_LIBRARIES winmm ws2_32 psapi iconv)
 
     # WSAPoll functionality doesn't exist before WinNT 6.x (Vista and up)
     add_definitions(-D_WIN32_WINNT=0x0600)
diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h
index 88e452a169..ed20c36297 100644
--- a/src/common/common_funcs.h
+++ b/src/common/common_funcs.h
@@ -45,14 +45,20 @@
 
 // GCC 4.8 defines all the rotate functions now
 // Small issue with GCC's lrotl/lrotr intrinsics is they are still 32bit while we require 64bit
-#ifndef _rotl
-inline u32 _rotl(u32 x, int shift) {
+#ifdef _rotl
+#define rotl _rotl
+#else
+inline u32 rotl(u32 x, int shift) {
     shift &= 31;
     if (!shift) return x;
     return (x << shift) | (x >> (32 - shift));
 }
+#endif
 
-inline u32 _rotr(u32 x, int shift) {
+#ifdef _rotr
+#define rotr _rotr
+#else
+inline u32 rotr(u32 x, int shift) {
     shift &= 31;
     if (!shift) return x;
     return (x >> shift) | (x << (32 - shift));
diff --git a/src/common/file_util.h b/src/common/file_util.h
index d0dccdf69a..e71a9b2fa2 100644
--- a/src/common/file_util.h
+++ b/src/common/file_util.h
@@ -244,7 +244,7 @@ private:
 template <typename T>
 void OpenFStream(T& fstream, const std::string& filename, std::ios_base::openmode openmode)
 {
-#ifdef _WIN32
+#ifdef _MSC_VER
     fstream.open(Common::UTF8ToTStr(filename).c_str(), openmode);
 #else
     fstream.open(filename.c_str(), openmode);