Fixed some #include problems so the library can be compiled by compiling its

individual .cpp files instead of the single large all/source.cpp file.

dlib/sockets/sockets_extensions.cpp

@@ -13,6 +13,7 @@
 #include "../timeout.h"
 #include "../misc_api.h"
 #include "../serialize.h"
+#include "../string.h"
 
 namespace dlib
 {

dlib/threads/multithreaded_object_extension.cpp

@@ -4,6 +4,7 @@
 #define DLIB_MULTITHREADED_OBJECT_EXTENSIOn_CPP
 
 #include "multithreaded_object_extension.h"
+#include "create_new_thread_extension.h"
 
 
 namespace dlib

dlib/threads/multithreaded_object_extension.h

@@ -6,7 +6,6 @@
 #include "multithreaded_object_extension_abstract.h"
 #include "threads_kernel.h"
 #include "auto_mutex_extension.h"
-#include "../threads.h"
 #include "rmutex_extension.h"
 #include "rsignaler_extension.h"
 #include "../algs.h"

dlib/threads/rsignaler_extension.h

@@ -4,7 +4,6 @@
 #define DLIB_RSIGNALER_EXTENSIOn_ 
 
 #include "rsignaler_extension_abstract.h"
-#include "../threads.h"
 #include "rmutex_extension.h"
 
 namespace dlib

dlib/threads/thread_pool_extension.h

@@ -4,11 +4,11 @@
 #define DLIB_THREAD_POOl_H__ 
 
 #include "thread_pool_extension_abstract.h"
+#include "multithreaded_object_extension.h"
 #include "../member_function_pointer.h"
 #include "../bound_function_pointer.h"
 #include "threads_kernel.h"
 #include "auto_mutex_extension.h"
-#include "multithreaded_object_extension.h"
 #include "../uintn.h"
 #include "../array.h"
 #include "../smart_pointers_thread_safe.h"

dlib/tokenizer/tokenizer_kernel_1.cpp

@@ -5,6 +5,7 @@
 #include "tokenizer_kernel_1.h"
 
 #include <iostream>
+#include <cstdio>
 
 namespace dlib
 {