3 files changed, 15 insertions, 13 deletions

diff --git a/src/common/settings_common.cpp b/src/common/settings_common.cpp
index dedf5ef90..137b65d5f 100644
--- a/src/common/settings_common.cpp
+++ b/src/common/settings_common.cpp
@@ -1,7 +1,9 @@
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <functional>
 #include <string>
+#include <vector>
 #include "common/settings_common.h"
 
 namespace Settings {
diff --git a/src/common/settings_enums.h b/src/common/settings_enums.h
index a1a29ebf6..e7cb59ea5 100644
--- a/src/common/settings_enums.h
+++ b/src/common/settings_enums.h
@@ -12,8 +12,8 @@ namespace Settings {
 
 template <typename T>
 struct EnumMetadata {
-    static constexpr std::vector<std::pair<std::string, T>> Canonicalizations();
-    static constexpr u32 Index();
+    static std::vector<std::pair<std::string, T>> Canonicalizations();
+    static u32 Index();
 };
 
 #define PAIR_45(N, X, ...) {#X, N::X} __VA_OPT__(, PAIR_46(N, __VA_ARGS__))
@@ -66,11 +66,11 @@ struct EnumMetadata {
 #define ENUM(NAME, ...)                                                                            \
     enum class NAME : u32 { __VA_ARGS__ };                                                         \
     template <>                                                                                    \
-    constexpr std::vector<std::pair<std::string, NAME>> EnumMetadata<NAME>::Canonicalizations() {  \
+    inline std::vector<std::pair<std::string, NAME>> EnumMetadata<NAME>::Canonicalizations() {     \
         return {PAIR(NAME, __VA_ARGS__)};                                                          \
     }                                                                                              \
     template <>                                                                                    \
-    constexpr u32 EnumMetadata<NAME>::Index() {                                                    \
+    inline u32 EnumMetadata<NAME>::Index() {                                                       \
         return __COUNTER__;                                                                        \
     }
 
@@ -85,7 +85,7 @@ enum class AudioEngine : u32 {
 };
 
 template <>
-constexpr std::vector<std::pair<std::string, AudioEngine>>
+inline std::vector<std::pair<std::string, AudioEngine>>
 EnumMetadata<AudioEngine>::Canonicalizations() {
     return {
         {"auto", AudioEngine::Auto},
@@ -96,7 +96,7 @@ EnumMetadata<AudioEngine>::Canonicalizations() {
 }
 
 template <>
-constexpr u32 EnumMetadata<AudioEngine>::Index() {
+inline u32 EnumMetadata<AudioEngine>::Index() {
     // This is just a sufficiently large number that is more than the number of other enums declared
     // here
     return 100;
@@ -147,7 +147,7 @@ ENUM(AntiAliasing, None, Fxaa, Smaa, MaxEnum);
 ENUM(AspectRatio, R16_9, R4_3, R21_9, R16_10, Stretch);
 
 template <typename Type>
-constexpr std::string CanonicalizeEnum(Type id) {
+inline std::string CanonicalizeEnum(Type id) {
     const auto group = EnumMetadata<Type>::Canonicalizations();
     for (auto& [name, value] : group) {
         if (value == id) {
@@ -158,7 +158,7 @@ constexpr std::string CanonicalizeEnum(Type id) {
 }
 
 template <typename Type>
-constexpr Type ToEnum(const std::string& canonicalization) {
+inline Type ToEnum(const std::string& canonicalization) {
     const auto group = EnumMetadata<Type>::Canonicalizations();
     for (auto& [name, value] : group) {
         if (name == canonicalization) {
diff --git a/src/common/settings_setting.h b/src/common/settings_setting.h
index a8beb06e9..e10843c73 100644
--- a/src/common/settings_setting.h
+++ b/src/common/settings_setting.h
@@ -190,7 +190,7 @@ public:
         }
     }
 
-    [[nodiscard]] std::string constexpr Canonicalize() const override final {
+    [[nodiscard]] std::string Canonicalize() const override final {
         if constexpr (std::is_enum_v<Type>) {
             return CanonicalizeEnum(this->GetValue());
         } else {
@@ -256,11 +256,11 @@ public:
      * @param runtime_modifiable_ Suggests whether this is modifiable while a guest is loaded
      * @param other_setting_ A second Setting to associate to this one in metadata
      */
+    template <typename T = BasicSetting>
     explicit SwitchableSetting(Linkage& linkage, const Type& default_val, const std::string& name,
                                Category category_, u32 specialization_ = Specialization::Default,
                                bool save_ = true, bool runtime_modifiable_ = false,
-                               BasicSetting* other_setting_ = nullptr)
-        requires(!ranged)
+                               typename std::enable_if<!ranged, T*>::type other_setting_ = nullptr)
         : Setting<Type, false>{
               linkage, default_val,         name,          category_, specialization_,
               save_,   runtime_modifiable_, other_setting_} {
@@ -282,12 +282,12 @@ public:
      * @param runtime_modifiable_ Suggests whether this is modifiable while a guest is loaded
      * @param other_setting_ A second Setting to associate to this one in metadata
      */
+    template <typename T = BasicSetting>
     explicit SwitchableSetting(Linkage& linkage, const Type& default_val, const Type& min_val,
                                const Type& max_val, const std::string& name, Category category_,
                                u32 specialization_ = Specialization::Default, bool save_ = true,
                                bool runtime_modifiable_ = false,
-                               BasicSetting* other_setting_ = nullptr)
-        requires(ranged)
+                               typename std::enable_if<ranged, T*>::type other_setting_ = nullptr)
         : Setting<Type, true>{linkage,         default_val, min_val,
                               max_val,         name,        category_,
                               specialization_, save_,       runtime_modifiable_,