build: Add missing include headers

include/vulkan/layer/vk_layer_settings.hpp

diff --git a/include/vulkan/layer/vk_layer_settings.hpp b/include/vulkan/layer/vk_layer_settings.hpp
index 28c8464..fbee6da 100644
--- a/include/vulkan/layer/vk_layer_settings.hpp
+++ b/include/vulkan/layer/vk_layer_settings.hpp
@@ -10,8 +10,10 @@
 #pragma once
 
 #include "vk_layer_settings.h"
-#include <vector>
+
 #include <string>
+#include <utility>
+#include <vector>
 
 VkResult vkuGetLayerSettingValue(VkuLayerSettingSet layerSettingSet, const char *pSettingName, bool &settingValue);
 

include/vulkan/utility/vk_concurrent_unordered_map.hpp

diff --git a/include/vulkan/utility/vk_concurrent_unordered_map.hpp b/include/vulkan/utility/vk_concurrent_unordered_map.hpp
index 631346d..57b5810 100644
--- a/include/vulkan/utility/vk_concurrent_unordered_map.hpp
+++ b/include/vulkan/utility/vk_concurrent_unordered_map.hpp
@@ -9,6 +9,8 @@
 
 #pragma once
 
+#include <stdint.h>
+
 #include <array>
 #include <functional>
 #include <mutex>

src/layer/vk_layer_settings.cpp

diff --git a/src/layer/vk_layer_settings.cpp b/src/layer/vk_layer_settings.cpp
index 61e3fa6..bc696f6 100644
--- a/src/layer/vk_layer_settings.cpp
+++ b/src/layer/vk_layer_settings.cpp
@@ -7,17 +7,19 @@
 // Author(s):
 // - Christophe Riccio <christophe@lunarg.com>
 #include "vulkan/layer/vk_layer_settings.h"
-#include "layer_settings_util.hpp"
 #include "layer_settings_manager.hpp"
+#include "layer_settings_util.hpp"
 
-#include <memory>
-#include <charconv>
-#include <cstdlib>
+#include <algorithm>
 #include <cassert>
-#include <cstring>
 #include <cctype>
-#include <cstring>
+#include <charconv>
 #include <cstdint>
+#include <cstdlib>
+#include <cstring>
+#include <cstring>
+#include <memory>
+#include <system_error>
 #include <unordered_map>
 
 // This is used only for unit tests in test_layer_setting_file

src/vulkan/vk_safe_struct_core.cpp

diff --git a/src/vulkan/vk_safe_struct_core.cpp b/src/vulkan/vk_safe_struct_core.cpp
index f99de19..191919c 100644
--- a/src/vulkan/vk_safe_struct_core.cpp
+++ b/src/vulkan/vk_safe_struct_core.cpp
@@ -17,6 +17,7 @@
 #include <vulkan/utility/vk_safe_struct.hpp>
 #include <vulkan/utility/vk_struct_helper.hpp>
 
+#include <cstddef>
 #include <cstring>
 
 namespace vku {

src/vulkan/vk_safe_struct_khr.cpp

diff --git a/src/vulkan/vk_safe_struct_khr.cpp b/src/vulkan/vk_safe_struct_khr.cpp
index bde9965..5afca11 100644
--- a/src/vulkan/vk_safe_struct_khr.cpp
+++ b/src/vulkan/vk_safe_struct_khr.cpp
@@ -17,6 +17,7 @@
 #include <vulkan/utility/vk_safe_struct.hpp>
 #include <vulkan/utility/vk_struct_helper.hpp>
 
+#include <cstddef>
 #include <cstring>
 
 namespace vku {

src/vulkan/vk_safe_struct_vendor.cpp

diff --git a/src/vulkan/vk_safe_struct_vendor.cpp b/src/vulkan/vk_safe_struct_vendor.cpp
index 18a87db..94a1d11 100644
--- a/src/vulkan/vk_safe_struct_vendor.cpp
+++ b/src/vulkan/vk_safe_struct_vendor.cpp
@@ -17,6 +17,7 @@
 #include <vulkan/utility/vk_safe_struct.hpp>
 #include <vulkan/utility/vk_struct_helper.hpp>
 
+#include <cstddef>
 #include <cstring>
 
 namespace vku {