include cleanup

src/io/UniqueFileDescriptor.hxx

 /*
- * Copyright 2012-2018 Max Kellermann <max.kellermann@gmail.com>
+ * Copyright 2012-2020 Max Kellermann <max.kellermann@gmail.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -30,7 +30,7 @@
 #ifndef UNIQUE_FILE_DESCRIPTOR_HXX
 #define UNIQUE_FILE_DESCRIPTOR_HXX
 
-#include "FileDescriptor.hxx"
+#include "FileDescriptor.hxx" // IWYU pragma: export
 
 #include <cassert>
 #include <utility>

src/io/uring/Operation.cxx

@@ -33,6 +33,8 @@
 #include "Operation.hxx"
 #include "CancellableOperation.hxx"
 
+#include <utility>
+
 namespace Uring {
 
 void

src/io/uring/Queue.cxx

@@ -32,11 +32,8 @@
 
 #include "Queue.hxx"
 #include "CancellableOperation.hxx"
-#include "Operation.hxx"
 #include "util/DeleteDisposer.hxx"
 
-#include <cassert>
-
 namespace Uring {
 
 Queue::Queue(unsigned entries, unsigned flags)

src/lib/dbus/AppendIter.hxx

@@ -36,6 +36,8 @@
 #include "Iter.hxx"
 #include "Values.hxx"
 
+#include <stdexcept>
+
 namespace ODBus {
 
 class AppendMessageIter : public MessageIter {

src/net/AddressInfo.hxx

 /*
- * Copyright 2016-2019 Max Kellermann <max.kellermann@gmail.com>
+ * Copyright 2016-2020 Max Kellermann <max.kellermann@gmail.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -31,13 +31,14 @@
 #define NET_ADDRESS_INFO_HXX
 
 #include "SocketAddress.hxx"
+#include "util/Compiler.h"
 
 #include <utility>
 
 #ifdef _WIN32
-#include <ws2tcpip.h>
+#include <ws2tcpip.h> // IWYU pragma: export
 #else
-#include <netdb.h>
+#include <netdb.h> // IWYU pragma: export
 #endif
 
 constexpr struct addrinfo

src/net/AllocatedSocketAddress.hxx

@@ -30,7 +30,7 @@
 #ifndef ALLOCATED_SOCKET_ADDRESS_HXX
 #define ALLOCATED_SOCKET_ADDRESS_HXX
 
-#include "SocketAddress.hxx"
+#include "SocketAddress.hxx" // IWYU pragma: export
 #include "Features.hxx"
 #include "util/Compiler.h"
 

src/net/SocketAddress.hxx

@@ -36,9 +36,9 @@
 #include <cstddef>
 
 #ifdef _WIN32
-#include <winsock2.h>
+#include <winsock2.h> // IWYU pragma: export
 #else
-#include <sys/socket.h>
+#include <sys/socket.h> // IWYU pragma: export
 #endif
 
 template<typename T> struct ConstBuffer;

src/net/SocketDescriptor.cxx

@@ -42,6 +42,7 @@
 #include <netinet/tcp.h>
 #endif
 
+#include <cassert>
 #include <cerrno>
 
 #include <string.h>

src/system/Error.hxx

@@ -32,7 +32,7 @@
 
 #include "util/Compiler.h"
 
-#include <system_error>
+#include <system_error> // IWYU pragma: export
 #include <utility>
 
 #include <stdio.h>
@@ -92,7 +92,7 @@ FormatLastError(const char *fmt, Args&&... args) noexcept
 
 #endif /* _WIN32 */
 
-#include <cerrno>
+#include <cerrno> // IWYU pragma: export
 
 #include <string.h>
 

src/util/StringCompare.cxx

@@ -29,6 +29,8 @@
 
 #include "StringCompare.hxx"
 
+#include <string.h>
+
 bool
 StringEndsWith(const char *haystack, const char *needle) noexcept
 {