Index: lldb/trunk/include/lldb/Host/MainLoop.h
===================================================================
--- lldb/trunk/include/lldb/Host/MainLoop.h
+++ lldb/trunk/include/lldb/Host/MainLoop.h
@@ -12,8 +12,8 @@
 
 #include "lldb/Host/Config.h"
 #include "lldb/Host/MainLoopBase.h"
-
 #include "llvm/ADT/DenseMap.h"
+#include <csignal>
 
 #if !HAVE_PPOLL && !HAVE_SYS_EVENT_H
 #define SIGNAL_POLLING_UNSUPPORTED 1
Index: lldb/trunk/include/lldb/Host/PosixApi.h
===================================================================
--- lldb/trunk/include/lldb/Host/PosixApi.h
+++ lldb/trunk/include/lldb/Host/PosixApi.h
@@ -16,6 +16,8 @@
 
 #if defined(_WIN32)
 #include "lldb/Host/windows/PosixApi.h"
+#else
+#include <unistd.h>
 #endif
 
 #endif
Index: lldb/trunk/include/lldb/Utility/DataExtractor.h
===================================================================
--- lldb/trunk/include/lldb/Utility/DataExtractor.h
+++ lldb/trunk/include/lldb/Utility/DataExtractor.h
@@ -15,6 +15,7 @@
 #include "lldb/lldb-forward.h"      // for DataBufferSP
 #include "lldb/lldb-types.h"
 
+#include <cassert>
 #include <stdint.h>
 #include <string.h>
 
Index: lldb/trunk/include/lldb/lldb-types.h
===================================================================
--- lldb/trunk/include/lldb/lldb-types.h
+++ lldb/trunk/include/lldb/lldb-types.h
@@ -13,16 +13,10 @@
 #include "lldb/lldb-enumerations.h"
 #include "lldb/lldb-forward.h"
 
-#include <assert.h>
-#include <signal.h>
 #include <stdint.h>
 
 //----------------------------------------------------------------------
 // All host systems must define:
-//  lldb::condition_t       The native condition type (or a substitute class)
-//  for conditions on the host system.
-//  lldb::mutex_t           The native mutex type for mutex objects on the host
-//  system.
 //  lldb::thread_t          The native thread type for spawned threads on the
 //  system
 //  lldb::thread_arg_t      The type of the one any only thread creation
@@ -34,32 +28,22 @@
 //  #define LLDB_INVALID_PROCESS_ID ...
 //  #define LLDB_INVALID_THREAD_ID ...
 //  #define LLDB_INVALID_HOST_THREAD ...
-//  #define IS_VALID_LLDB_HOST_THREAD ...
 //----------------------------------------------------------------------
 
 // TODO: Add a bunch of ifdefs to determine the host system and what
 // things should be defined. Currently MacOSX is being assumed by default
 // since that is what lldb was first developed for.
 
-#ifndef _MSC_VER
-#include <stdbool.h>
-#include <unistd.h>
-#endif
-
 #ifdef _WIN32
 
 #include <process.h>
 
 namespace lldb {
-typedef void *mutex_t;
-typedef void *condition_t;
 typedef void *rwlock_t;
 typedef void *process_t;             // Process type is HANDLE
 typedef void *thread_t;              // Host thread type
 typedef void *file_t;                // Host file type
-typedef void *pipe_t;                // Host pipe type
 typedef unsigned int __w64 socket_t; // Host socket type
-typedef uint32_t thread_key_t;
 typedef void *thread_arg_t;                       // Host thread argument type
 typedef unsigned thread_result_t;                 // Host thread result type
 typedef thread_result_t (*thread_func_t)(void *); // Host thread function type
@@ -73,15 +57,11 @@
 //----------------------------------------------------------------------
 // MacOSX Types
 //----------------------------------------------------------------------
-typedef ::pthread_mutex_t mutex_t;
-typedef pthread_cond_t condition_t;
 typedef pthread_rwlock_t rwlock_t;
 typedef uint64_t process_t; // Process type is just a pid.
 typedef pthread_t thread_t; // Host thread type
 typedef int file_t;         // Host file type
-typedef int pipe_t;         // Host pipe type
 typedef int socket_t;       // Host socket type
-typedef pthread_key_t thread_key_t;
 typedef void *thread_arg_t;             // Host thread argument type
 typedef void *thread_result_t;          // Host thread result type
 typedef void *(*thread_func_t)(void *); // Host thread function type
@@ -100,10 +80,6 @@
 
 #define LLDB_INVALID_PROCESS ((lldb::process_t)-1)
 #define LLDB_INVALID_HOST_THREAD ((lldb::thread_t)NULL)
-#define IS_VALID_LLDB_HOST_THREAD(t) ((t) != LLDB_INVALID_HOST_THREAD)
-
-#define LLDB_INVALID_HOST_TIME                                                 \
-  { 0, 0 }
 
 namespace lldb {
 typedef uint64_t addr_t;
Index: lldb/trunk/source/Host/common/File.cpp
===================================================================
--- lldb/trunk/source/Host/common/File.cpp
+++ lldb/trunk/source/Host/common/File.cpp
@@ -21,6 +21,7 @@
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <termios.h>
+#include <unistd.h>
 #endif
 
 #include "llvm/Support/ConvertUTF.h"
Index: lldb/trunk/source/Host/common/Socket.cpp
===================================================================
--- lldb/trunk/source/Host/common/Socket.cpp
+++ lldb/trunk/source/Host/common/Socket.cpp
@@ -29,6 +29,7 @@
 #include <netinet/tcp.h>
 #include <sys/socket.h>
 #include <sys/un.h>
+#include <unistd.h>
 #endif
 
 #ifdef __linux__
Index: lldb/trunk/source/Host/common/TCPSocket.cpp
===================================================================
--- lldb/trunk/source/Host/common/TCPSocket.cpp
+++ lldb/trunk/source/Host/common/TCPSocket.cpp
@@ -34,6 +34,7 @@
 #define CLOSE_SOCKET closesocket
 typedef const char *set_socket_option_arg_type;
 #else
+#include <unistd.h>
 #define CLOSE_SOCKET ::close
 typedef const void *set_socket_option_arg_type;
 #endif
Index: lldb/trunk/source/Host/linux/Host.cpp
===================================================================
--- lldb/trunk/source/Host/linux/Host.cpp
+++ lldb/trunk/source/Host/linux/Host.cpp
@@ -16,6 +16,7 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/utsname.h>
+#include <unistd.h>
 
 // C++ Includes
 // Other libraries and framework includes
Index: lldb/trunk/source/Host/linux/HostInfoLinux.cpp
===================================================================
--- lldb/trunk/source/Host/linux/HostInfoLinux.cpp
+++ lldb/trunk/source/Host/linux/HostInfoLinux.cpp
@@ -16,6 +16,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <sys/utsname.h>
+#include <unistd.h>
 
 #include <algorithm>
 #include <mutex> // std::once
Index: lldb/trunk/source/Host/posix/ConnectionFileDescriptorPosix.cpp
===================================================================
--- lldb/trunk/source/Host/posix/ConnectionFileDescriptorPosix.cpp
+++ lldb/trunk/source/Host/posix/ConnectionFileDescriptorPosix.cpp
@@ -30,6 +30,7 @@
 
 #ifndef LLDB_DISABLE_POSIX
 #include <termios.h>
+#include <unistd.h>
 #endif
 
 // C++ Includes
Index: lldb/trunk/source/Host/posix/FileSystem.cpp
===================================================================
--- lldb/trunk/source/Host/posix/FileSystem.cpp
+++ lldb/trunk/source/Host/posix/FileSystem.cpp
@@ -15,6 +15,7 @@
 #include <sys/param.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <unistd.h>
 #ifdef __linux__
 #include <linux/magic.h>
 #include <sys/mount.h>
Index: lldb/trunk/source/Host/posix/HostProcessPosix.cpp
===================================================================
--- lldb/trunk/source/Host/posix/HostProcessPosix.cpp
+++ lldb/trunk/source/Host/posix/HostProcessPosix.cpp
@@ -13,7 +13,9 @@
 
 #include "llvm/ADT/STLExtras.h"
 
+#include <csignal>
 #include <limits.h>
+#include <unistd.h>
 
 using namespace lldb_private;
 
Index: lldb/trunk/source/Host/posix/LockFilePosix.cpp
===================================================================
--- lldb/trunk/source/Host/posix/LockFilePosix.cpp
+++ lldb/trunk/source/Host/posix/LockFilePosix.cpp
@@ -10,6 +10,7 @@
 #include "lldb/Host/posix/LockFilePosix.h"
 
 #include <fcntl.h>
+#include <unistd.h>
 
 using namespace lldb;
 using namespace lldb_private;
Index: lldb/trunk/source/Host/posix/ProcessLauncherPosixFork.cpp
===================================================================
--- lldb/trunk/source/Host/posix/ProcessLauncherPosixFork.cpp
+++ lldb/trunk/source/Host/posix/ProcessLauncherPosixFork.cpp
@@ -19,6 +19,7 @@
 #include <limits.h>
 #include <sys/ptrace.h>
 #include <sys/wait.h>
+#include <unistd.h>
 
 #include <sstream>
 
Index: lldb/trunk/source/Plugins/DynamicLoader/POSIX-DYLD/AuxVector.cpp
===================================================================
--- lldb/trunk/source/Plugins/DynamicLoader/POSIX-DYLD/AuxVector.cpp
+++ lldb/trunk/source/Plugins/DynamicLoader/POSIX-DYLD/AuxVector.cpp
@@ -7,24 +7,12 @@
 //
 //===----------------------------------------------------------------------===//
 
-// C Includes
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-
-// C++ Includes
-// Other libraries and framework includes
+#include "AuxVector.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Utility/DataBufferHeap.h"
 #include "lldb/Utility/DataExtractor.h"
 #include "lldb/Utility/Log.h"
 
-#if defined(__linux__) || defined(__FreeBSD__)
-#include "Plugins/Process/elf-core/ProcessElfCore.h"
-#endif
-
-#include "AuxVector.h"
-
 using namespace lldb;
 using namespace lldb_private;
 
Index: lldb/trunk/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
===================================================================
--- lldb/trunk/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
+++ lldb/trunk/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
@@ -23,6 +23,7 @@
 #include "lldb/Host/ConnectionFileDescriptor.h"
 #include "lldb/Host/Host.h"
 #include "lldb/Host/HostInfo.h"
+#include "lldb/Host/PosixApi.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Utility/FileSpec.h"
Index: lldb/trunk/source/Plugins/Process/Linux/NativeProcessLinux.h
===================================================================
--- lldb/trunk/source/Plugins/Process/Linux/NativeProcessLinux.h
+++ lldb/trunk/source/Plugins/Process/Linux/NativeProcessLinux.h
@@ -10,7 +10,7 @@
 #ifndef liblldb_NativeProcessLinux_H_
 #define liblldb_NativeProcessLinux_H_
 
-// C++ Includes
+#include <csignal>
 #include <unordered_set>
 
 // Other libraries and framework includes
Index: lldb/trunk/source/Plugins/Process/Linux/NativeThreadLinux.h
===================================================================
--- lldb/trunk/source/Plugins/Process/Linux/NativeThreadLinux.h
+++ lldb/trunk/source/Plugins/Process/Linux/NativeThreadLinux.h
@@ -14,6 +14,7 @@
 #include "lldb/Host/common/NativeThreadProtocol.h"
 #include "lldb/lldb-private-forward.h"
 
+#include <csignal>
 #include <map>
 #include <memory>
 #include <string>
Index: lldb/trunk/source/Plugins/Process/Linux/ProcessorTrace.h
===================================================================
--- lldb/trunk/source/Plugins/Process/Linux/ProcessorTrace.h
+++ lldb/trunk/source/Plugins/Process/Linux/ProcessorTrace.h
@@ -18,6 +18,7 @@
 
 #include <linux/perf_event.h>
 #include <sys/mman.h>
+#include <unistd.h>
 
 namespace lldb_private {
 
Index: lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
===================================================================
--- lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
+++ lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
@@ -29,6 +29,7 @@
 #include "lldb/Host/FileSystem.h"
 #include "lldb/Host/Host.h"
 #include "lldb/Host/HostInfo.h"
+#include "lldb/Host/PosixApi.h"
 #include "lldb/Host/common/NativeProcessProtocol.h"
 #include "lldb/Host/common/NativeRegisterContext.h"
 #include "lldb/Host/common/NativeThreadProtocol.h"
Index: lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
===================================================================
--- lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -16,6 +16,7 @@
 #include <netinet/in.h>
 #include <sys/mman.h> // for mmap
 #include <sys/socket.h>
+#include <unistd.h>
 #endif
 #include <sys/stat.h>
 #include <sys/types.h>
@@ -40,6 +41,7 @@
 #include "lldb/Host/ConnectionFileDescriptor.h"
 #include "lldb/Host/FileSystem.h"
 #include "lldb/Host/HostThread.h"
+#include "lldb/Host/PosixApi.h"
 #include "lldb/Host/PseudoTerminal.h"
 #include "lldb/Host/StringConvert.h"
 #include "lldb/Host/Symbols.h"
Index: lldb/trunk/source/Target/Target.cpp
===================================================================
--- lldb/trunk/source/Target/Target.cpp
+++ lldb/trunk/source/Target/Target.cpp
@@ -34,6 +34,7 @@
 #include "lldb/Expression/REPL.h"
 #include "lldb/Expression/UserExpression.h"
 #include "lldb/Host/Host.h"
+#include "lldb/Host/PosixApi.h"
 #include "lldb/Interpreter/CommandInterpreter.h"
 #include "lldb/Interpreter/CommandReturnObject.h"
 #include "lldb/Interpreter/OptionGroupWatchpoint.h"
Index: lldb/trunk/tools/driver/Driver.cpp
===================================================================
--- lldb/trunk/tools/driver/Driver.cpp
+++ lldb/trunk/tools/driver/Driver.cpp
@@ -9,6 +9,7 @@
 
 #include "Driver.h"
 
+#include <csignal>
 #include <fcntl.h>
 #include <limits.h>
 #include <stdio.h>
Index: lldb/trunk/tools/lldb-mi/MICmnLLDBDebugger.cpp
===================================================================
--- lldb/trunk/tools/lldb-mi/MICmnLLDBDebugger.cpp
+++ lldb/trunk/tools/lldb-mi/MICmnLLDBDebugger.cpp
@@ -17,6 +17,7 @@
 #include "lldb/API/SBTypeCategory.h"
 #include "lldb/API/SBTypeNameSpecifier.h"
 #include "lldb/API/SBTypeSummary.h"
+#include <cassert>
 
 // In-house headers:
 #include "MICmnLLDBDebugSessionInfo.h"
Index: lldb/trunk/tools/lldb-mi/MIDriver.cpp
===================================================================
--- lldb/trunk/tools/lldb-mi/MIDriver.cpp
+++ lldb/trunk/tools/lldb-mi/MIDriver.cpp
@@ -9,6 +9,8 @@
 
 // Third party headers:
 #include "lldb/API/SBError.h"
+#include <cassert>
+#include <csignal>
 #include <fstream>
 
 // In-house headers:
Index: lldb/trunk/tools/lldb-mi/MIDriverMain.cpp
===================================================================
--- lldb/trunk/tools/lldb-mi/MIDriverMain.cpp
+++ lldb/trunk/tools/lldb-mi/MIDriverMain.cpp
@@ -33,6 +33,7 @@
 
 // Third party headers:
 #include "lldb/API/SBHostOS.h"
+#include <csignal>
 #include <stdio.h>
 
 // In house headers: