Fix mingw build.

[abidh]

Summary

Following changes are done.

1. Add missing headers.
2. Replace _snprintf with snprintf. It is already changed to _snprintf for MSVC.
3. Add a file in the build for autoconf.
4. Exclude DynamicLoaderWindows::Terminate from mingw build as DynamicLoaderWindows::Initialize is done.

Built on Linux and Windows.

[zturner]

Can you change DynamicLoaderWindows calls to be #if defined(_MSC_VER)?
Otherwise lgtm

[abidh]

• Replaced some check from (win32 && !mingw) to _MSC_VER.

[abidh]

I have done the change requested. Please accept if it look good.

[abidh]

Committed in 228822.

source/Host/common/SocketAddress.cpp

 //===-- SocketAddress.cpp ---------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 #include "lldb/Host/SocketAddress.h"
 #include <stddef.h>
+#include <stdio.h>
 
 // C Includes
 #if !defined(_WIN32)
 #include <arpa/inet.h>
+#else
+#include "lldb/Host/windows/win32.h"
 #endif
 #include <assert.h>
 #include <string.h>
 
 // C++ Includes
 // Other libraries and framework includes
 // Project includes
 
switch (af)
                     return dst;
                 }
             }
             return nullptr;
         case AF_INET6:
             {
                 char tmp[INET6_ADDRSTRLEN] = {0};
                 const uint16_t* src16 = static_cast<const uint16_t*>(src);
-                int full_size = _snprintf(tmp, sizeof(tmp),
+                int full_size = ::snprintf(tmp, sizeof(tmp),
                                           "%x:%x:%x:%x:%x:%x:%x:%x",
                                           ntohs(src16[0]), ntohs(src16[1]), ntohs(src16[2]), ntohs(src16[3]),
                                           ntohs(src16[4]), ntohs(src16[5]), ntohs(src16[6]), ntohs(src16[7])
                                           );
                 if (full_size < static_cast<int>(size))
                 {
                     strncpy(dst,tmp,size);
                     return dst;

source/Host/windows/Makefile

 ##===- source/Host/windows/Makefile ------------------------*- Makefile -*-===##
 # 
 #                     The LLVM Compiler Infrastructure
 #
 # This file is distributed under the University of Illinois Open Source
 # License. See LICENSE.TXT for details.
 # 
 ##===----------------------------------------------------------------------===##
 
 LLDB_LEVEL := ../../..
 LIBRARYNAME := lldbHostWindows
 BUILD_ARCHIVE = 1
 
+SOURCES = $(notdir $(wildcard $(PROJ_SRC_DIR)/*.cpp )) $(PROJ_SRC_DIR)/../posix/ConnectionFileDescriptorPosix.cpp
+
 include $(LLDB_LEVEL)/Makefile

source/Utility/UriParser.cpp

 //===-- UriParser.cpp -------------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 #include "Utility/UriParser.h"
 
 // C Includes
 #include <stdlib.h>
+#include <stdio.h>
 
 // C++ Includes
 // Other libraries and framework includes
 // Project includes
 #include "lldb/Host/StringConvert.h"
 
 using namespace lldb_private;
 

source/lldb.cpp

#if defined (__APPLE__)
         SystemRuntimeMacOSX::Initialize();
 #endif
 #if defined (__linux__)
         //----------------------------------------------------------------------
         // Linux hosted plugins
         //----------------------------------------------------------------------
         ProcessLinux::Initialize();
 #endif
-#if defined(_WIN32)
+#if defined(_MSC_VER)
         DynamicLoaderWindows::Initialize();
         ProcessWindows::Initialize();
 #endif
 #if defined (__FreeBSD__)
         ProcessFreeBSD::Initialize();
 #endif
 
         //----------------------------------------------------------------------
#if defined (__APPLE__)
     PlatformDarwinKernel::Terminate();
     PlatformRemoteiOS::Terminate();
     PlatformiOSSimulator::Terminate();
     SystemRuntimeMacOSX::Terminate();
 #endif
 
     Debugger::SettingsTerminate ();
 
-#if defined (_WIN32)
+#if defined(_MSC_VER)
     DynamicLoaderWindows::Terminate();
 #endif
 
 #if defined (__linux__)
     ProcessLinux::Terminate();
 #endif
 
 #if defined (__FreeBSD__)