10 files changed, 11 insertions, 0 deletions
diff --git a/lldb/source/Host/common/File.cpp b/lldb/source/Host/common/File.cpp
index 90a4462c6ca..6ee4e894756 100644
--- a/lldb/source/Host/common/File.cpp
+++ b/lldb/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"
diff --git a/lldb/source/Host/common/Socket.cpp b/lldb/source/Host/common/Socket.cpp
index 0df9dc02c70..5490e9b30bd 100644
--- a/lldb/source/Host/common/Socket.cpp
+++ b/lldb/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__
diff --git a/lldb/source/Host/common/TCPSocket.cpp b/lldb/source/Host/common/TCPSocket.cpp
index c013334ce23..a7af93f10a7 100644
--- a/lldb/source/Host/common/TCPSocket.cpp
+++ b/lldb/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
diff --git a/lldb/source/Host/linux/Host.cpp b/lldb/source/Host/linux/Host.cpp
index 486d4e3f0b8..f43090eadf8 100644
--- a/lldb/source/Host/linux/Host.cpp
+++ b/lldb/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
diff --git a/lldb/source/Host/linux/HostInfoLinux.cpp b/lldb/source/Host/linux/HostInfoLinux.cpp
index 3ff722d5c10..8d59cda249e 100644
--- a/lldb/source/Host/linux/HostInfoLinux.cpp
+++ b/lldb/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
diff --git a/lldb/source/Host/posix/ConnectionFileDescriptorPosix.cpp b/lldb/source/Host/posix/ConnectionFileDescriptorPosix.cpp
index 105ef0f23d4..3797650105c 100644
--- a/lldb/source/Host/posix/ConnectionFileDescriptorPosix.cpp
+++ b/lldb/source/Host/posix/ConnectionFileDescriptorPosix.cpp
@@ -30,6 +30,7 @@
 
 #ifndef LLDB_DISABLE_POSIX
 #include <termios.h>
+#include <unistd.h>
 #endif
 
 // C++ Includes
diff --git a/lldb/source/Host/posix/FileSystem.cpp b/lldb/source/Host/posix/FileSystem.cpp
index e5a99e1aa75..3ece0677f99 100644
--- a/lldb/source/Host/posix/FileSystem.cpp
+++ b/lldb/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>
diff --git a/lldb/source/Host/posix/HostProcessPosix.cpp b/lldb/source/Host/posix/HostProcessPosix.cpp
index b5505dbec65..3c5273f4bd3 100644
--- a/lldb/source/Host/posix/HostProcessPosix.cpp
+++ b/lldb/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;
 
diff --git a/lldb/source/Host/posix/LockFilePosix.cpp b/lldb/source/Host/posix/LockFilePosix.cpp
index 2b7d548a021..05423062bd4 100644
--- a/lldb/source/Host/posix/LockFilePosix.cpp
+++ b/lldb/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;
diff --git a/lldb/source/Host/posix/ProcessLauncherPosixFork.cpp b/lldb/source/Host/posix/ProcessLauncherPosixFork.cpp
index 0b40c24256e..9b3f6fbf15c 100644
--- a/lldb/source/Host/posix/ProcessLauncherPosixFork.cpp
+++ b/lldb/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>