From 3157e53522e3fa5232c56fdbba378ebdf2f3ef4f Mon Sep 17 00:00:00 2001
From: Andrew Hsieh <andrewhsieh@google.com>
Date: Tue, 19 Mar 2013 10:38:57 -0700
Subject: [PATCH 3/5] Fix mingw build

Change-Id: I8d1669bf1d89cad60e8b49a946feee52734c4a23
---
 include/mcld/Support/Path.h        |  6 ++++--
 lib/Support/Directory.cpp          |  2 +-
 lib/Support/Path.cpp               |  4 ++--
 lib/Support/Windows/FileSystem.inc | 19 +++++++++++++++++++
 lib/Support/Windows/PathV3.inc     | 15 +++++++++++++--
 lib/Support/Windows/System.inc     |  5 +++++
 lib/Support/raw_ostream.cpp        |  2 +-
 lib/Target/GNULDBackend.cpp        |  4 ++++
 lib/Target/Mips/MipsLDBackend.cpp  |  4 ++++
 tools/llvm-mcld/llvm-mcld.cpp      | 13 +++++++++++++
 10 files changed, 66 insertions(+), 8 deletions(-)

diff --git a/include/mcld/Support/Path.h b/include/mcld/Support/Path.h
index 399c56d..b84d55a 100644
--- a/include/mcld/Support/Path.h
+++ b/include/mcld/Support/Path.h
@@ -28,7 +28,7 @@ namespace mcld {
 namespace sys  {
 namespace fs   {
 
-#if defined(MCLD_ON_WIN32)
+#if defined(MCLD_ON_WIN32) && !defined(__MINGW32__)
 const wchar_t preferred_separator = L'\\';
 const wchar_t separator = L'\\';
 const wchar_t colon = L':';
@@ -50,7 +50,7 @@ const char    dot = L'.';
 class Path
 {
 public:
-#if defined(MCLD_ON_WIN32)
+#if defined(MCLD_ON_WIN32) && !defined(__MINGW32__)
   typedef wchar_t                            ValueType;
   typedef std::wstring                       StringType;
 #else
@@ -93,7 +93,9 @@ public:
   { return m_PathName.c_str(); }
 
   std::string string() const;
+#if !defined(__MINGW32__)
   std::wstring wstring() const;
+#endif
 
   // -----  decomposition  ----- //
   Path parent_path() const;
diff --git a/lib/Support/Directory.cpp b/lib/Support/Directory.cpp
index 827df59..d19d6a0 100644
--- a/lib/Support/Directory.cpp
+++ b/lib/Support/Directory.cpp
@@ -24,7 +24,7 @@ bool is_symlink(FileStatus f)
   return f.type() == SymlinkFile;
 }
 
-#if defined(MCLD_ON_WIN32)
+#if defined(MCLD_ON_WIN32) && !defined(__MINGW32__)
 const Path dot_path(L".");
 const Path dot_dot_path(L"..");
 
diff --git a/lib/Support/Path.cpp b/lib/Support/Path.cpp
index 9989c1a..4a2e28e 100644
--- a/lib/Support/Path.cpp
+++ b/lib/Support/Path.cpp
@@ -23,7 +23,7 @@ using namespace mcld::sys::fs;
 // Helper
 //===--------------------------------------------------------------------===//
 namespace {
-#if defined(MCLD_ON_WIN32)
+#if defined(MCLD_ON_WIN32) && !defined(__MINGW32__)
 bool is_separator(wchar_t value)
 {
   return (value == separator || value == preferred_separator);
@@ -104,7 +104,7 @@ Path& Path::append(const Path& pPath)
     unsigned int new_size = old_size + pPath.native().size();
 
     m_PathName.resize(new_size);
-#if defined(MCLD_ON_WIN32)
+#if defined(MCLD_ON_WIN32) && !defined(__MINGW32__)
     wcscpy(const_cast<ValueType*>(m_PathName.data()+old_size), pPath.native().data());
 #else
     strcpy(const_cast<ValueType*>(m_PathName.data()+old_size), pPath.native().data());
diff --git a/lib/Support/Windows/FileSystem.inc b/lib/Support/Windows/FileSystem.inc
index 7ccb958..0708aff 100644
--- a/lib/Support/Windows/FileSystem.inc
+++ b/lib/Support/Windows/FileSystem.inc
@@ -8,8 +8,10 @@
 //===----------------------------------------------------------------------===//
 #include <string>
 #include <io.h>
+#include <stdio.h>
 #include <fcntl.h>
 #include <cstdlib>
+#include <sys/stat.h>
 #include <mcld/Support/FileHandle.h>
 
 #ifndef STDIN_FILENO
@@ -27,16 +29,29 @@ namespace sys{
 namespace fs{
 namespace detail{
 
+#if !defined(__MINGW32__)
 Path::StringType static_library_extension = L".lib";
 Path::StringType shared_library_extension = L".dll";
 Path::StringType executable_extension     = L".exe";
 Path::StringType relocatable_extension    = L".obj";
 Path::StringType assembly_extension       = L".s";
 Path::StringType bitcode_extension        = L".bc";
+#else
+Path::StringType static_library_extension = ".lib";
+Path::StringType shared_library_extension = ".dll";
+Path::StringType executable_extension     = ".exe";
+Path::StringType relocatable_extension    = ".obj";
+Path::StringType assembly_extension       = ".s";
+Path::StringType bitcode_extension        = ".bc";
+#endif
 
 int open(const Path& pPath, int pOFlag)
 {
+#if !defined(__MINGW32__)
   return ::_wopen(pPath.native().c_str(), pOFlag);
+#else
+  return ::open(pPath.native().c_str(), pOFlag);
+#endif
 }
 
 int open(const Path& pPath, int pOFlag, int pPerm)
@@ -52,7 +67,11 @@ int open(const Path& pPath, int pOFlag, int pPerm)
       pPerm & FileHandle::WriteOther)
     perm |= _S_IWRITE;
 
+#if !defined(__MINGW32__)
   return ::_wopen(pPath.native().c_str(), pOFlag, perm);
+#else
+  return ::open(pPath.native().c_str(), pOFlag, perm);
+#endif
 }
 
 ssize_t pread(int pFD, void* pBuf, size_t pCount, size_t pOffset)
diff --git a/lib/Support/Windows/PathV3.inc b/lib/Support/Windows/PathV3.inc
index db577c0..ed0e712 100644
--- a/lib/Support/Windows/PathV3.inc
+++ b/lib/Support/Windows/PathV3.inc
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 #include <mcld/Support/Path.h>
 #include <mcld/Support/Directory.h>
-#include <Windows.h>
+#include <windows.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <limits.h>
@@ -30,10 +30,12 @@ std::string Path::string() const
   return result;
 }
 
+#if !defined(__MINGW32__)
 std::wstring Path::wstring() const
 {
   return m_PathName;
 }
+#endif
 
 //===----------------------------------------------------------------------===//
 // mcld::sys::fs::detail
@@ -150,7 +152,11 @@ bool not_found_error(int perrno)
 void status(const Path& p, FileStatus& pFileStatus)
 {
   struct ::_stat path_stat;
+#if !defined(__MINGW32__)
   if(::_wstat(p.c_str(), &path_stat)!= 0)
+#else
+  if(::_stat(p.c_str(), &path_stat)!= 0)
+#endif
   {
     if(not_found_error(errno))
     {
@@ -200,8 +206,13 @@ void close_dir(Directory& pDir)
 
 void get_pwd(Path& pPWD)
 {
-  wchar_t* pwd = (wchar_t*)malloc(PATH_MAX);
+#if !defined(__MINGW32__)
+  wchar_t* pwd = (wchar_t*)malloc(PATH_MAX*sizeof(wchar_t));
   pPWD.assign(_wgetcwd(pwd, PATH_MAX));
+#else
+  char* pwd = (char*)malloc(PATH_MAX);
+  pPWD.assign(pwd);
+#endif
   free(pwd);
 }
 
diff --git a/lib/Support/Windows/System.inc b/lib/Support/Windows/System.inc
index 8b64c40..ba91105 100644
--- a/lib/Support/Windows/System.inc
+++ b/lib/Support/Windows/System.inc
@@ -16,6 +16,11 @@
 namespace mcld{
 namespace sys{
 
+char *strerror(int errnum)
+{
+  return strerror(errnum);
+}
+
 std::string getDefaultTargetTriple()
 {
   return MCLD_DEFAULT_TARGET_TRIPLE;
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index 57213ed..4797245 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -17,7 +17,7 @@
 #include <io.h>
 #endif
 
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) || defined(__MINGW32__)
 #include <io.h>
 #ifndef STDIN_FILENO
 # define STDIN_FILENO 0
diff --git a/lib/Target/GNULDBackend.cpp b/lib/Target/GNULDBackend.cpp
index 12a2100..3e00c12 100644
--- a/lib/Target/GNULDBackend.cpp
+++ b/lib/Target/GNULDBackend.cpp
@@ -37,6 +37,10 @@
 #include <mcld/LD/StubFactory.h>
 #include <mcld/Object/ObjectBuilder.h>
 
+#if defined(_WIN32)
+  #define bzero(b,l) (memset((b), 0, (l)), (void)0)
+#endif
+
 using namespace mcld;
 
 //===--------------------------------------------------------------------===//
diff --git a/lib/Target/Mips/MipsLDBackend.cpp b/lib/Target/Mips/MipsLDBackend.cpp
index 3db1c47..ae34f50 100644
--- a/lib/Target/Mips/MipsLDBackend.cpp
+++ b/lib/Target/Mips/MipsLDBackend.cpp
@@ -27,6 +27,10 @@
 #include <mcld/Target/OutputRelocSection.h>
 #include <mcld/Object/ObjectBuilder.h>
 
+#if defined(_WIN32)
+  #define bzero(b,l) (memset((b), 0, (l)), (void)0)
+#endif
+
 using namespace mcld;
 
 //===----------------------------------------------------------------------===//
diff --git a/tools/llvm-mcld/llvm-mcld.cpp b/tools/llvm-mcld/llvm-mcld.cpp
index 98bdcad..81a7f55 100644
--- a/tools/llvm-mcld/llvm-mcld.cpp
+++ b/tools/llvm-mcld/llvm-mcld.cpp
@@ -47,6 +47,19 @@
 # include <unistd.h>
 #endif
 
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#include <io.h>
+#ifndef STDIN_FILENO
+# define STDIN_FILENO 0
+#endif
+#ifndef STDOUT_FILENO
+# define STDOUT_FILENO 1
+#endif
+#ifndef STDERR_FILENO
+# define STDERR_FILENO 2
+#endif
+#endif
+
 using namespace llvm;
 
 #ifdef ENABLE_UNITTEST
-- 
1.8.1.3