From ffcdd74a96aa505c95ca70a6798ca74501149257 Mon Sep 17 00:00:00 2001
From: Laura Andelare <landelare@users.noreply.github.com>
Date: Fri, 20 Oct 2023 19:58:07 +0000
Subject: [PATCH] Life support for Android and Linux

C++20-only features are disabled even in C++20 mode.
---
 Plugins/UE5Coro/Source/UE5Coro/Private/Coroutine.cpp     | 4 ++++
 .../UE5Coro/Source/UE5Coro/Public/UE5Coro/Coroutine.h    | 2 +-
 .../UE5Coro/Source/UE5Coro/Public/UE5Coro/Definitions.h  | 9 +++++++++
 .../Source/UE5Coro/Public/UE5Coro/LatentAwaiters.h       | 2 +-
 .../Source/UE5Coro/Public/UE5Coro/LatentChain.inl        | 4 ++--
 Plugins/UE5Coro/UE5Coro.uplugin                          | 2 +-
 Plugins/UE5CoroGAS/UE5CoroGAS.uplugin                    | 2 +-
 7 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/Plugins/UE5Coro/Source/UE5Coro/Private/Coroutine.cpp b/Plugins/UE5Coro/Source/UE5Coro/Private/Coroutine.cpp
index fcfa26ca..e8958f7e 100644
--- a/Plugins/UE5Coro/Source/UE5Coro/Private/Coroutine.cpp
+++ b/Plugins/UE5Coro/Source/UE5Coro/Private/Coroutine.cpp
@@ -81,7 +81,11 @@ bool TCoroutine<>::operator==(const TCoroutine<>& Other) const noexcept
 auto TCoroutine<>::operator<=>(const TCoroutine<>& Other) const noexcept
 	-> std::strong_ordering
 {
+#if UE5CORO_PRIVATE_LIBCPP_IS_BROKEN
+	return Extras.get() <=> Other.Extras.get();
+#else
 	return Extras <=> Other.Extras;
+#endif
 }
 #else
 bool TCoroutine<>::operator!=(const TCoroutine<>& Other) const noexcept
diff --git a/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/Coroutine.h b/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/Coroutine.h
index f7d2357d..f0185fe5 100644
--- a/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/Coroutine.h
+++ b/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/Coroutine.h
@@ -187,7 +187,7 @@ class TCoroutine : public TCoroutine<>
 };
 
 static_assert(sizeof(TCoroutine<int>) == sizeof(TCoroutine<>));
-#if UE5CORO_CPP20
+#if UE5CORO_CPP20 && !UE5CORO_PRIVATE_LIBCPP_IS_BROKEN
 static_assert(std::totally_ordered<TCoroutine<>>);
 static_assert(std::totally_ordered_with<TCoroutine<>, TCoroutine<int>>);
 #endif
diff --git a/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/Definitions.h b/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/Definitions.h
index 44a6aee8..f29fcf8e 100644
--- a/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/Definitions.h
+++ b/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/Definitions.h
@@ -47,6 +47,9 @@ namespace UE5Coro::Private
 {
 	namespace stdcoro = ::std::experimental;
 }
+#ifdef __clang__
+#pragma clang diagnostic ignored "-Wdeprecated-experimental-coroutine"
+#endif
 #else
 #error UE5Coro requires C++20 or the Coroutines TS for C++17.
 #endif
@@ -54,3 +57,9 @@ namespace UE5Coro::Private
 #ifndef UE5CORO_DEBUG
 #define UE5CORO_DEBUG (UE_BUILD_DEBUG || UE_BUILD_DEVELOPMENT)
 #endif
+
+#if defined(_LIBCPP_VERSION) && _LIBCPP_VERSION < 16000
+#define UE5CORO_PRIVATE_LIBCPP_IS_BROKEN 1
+#else
+#define UE5CORO_PRIVATE_LIBCPP_IS_BROKEN 0
+#endif
diff --git a/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/LatentAwaiters.h b/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/LatentAwaiters.h
index ddfa4c66..8e046d93 100644
--- a/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/LatentAwaiters.h
+++ b/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/LatentAwaiters.h
@@ -124,7 +124,7 @@ UE5CORO_API Private::FLatentAwaiter UntilAudioTime(double);
 
 #pragma region Chain
 
-#if UE5CORO_CPP20
+#if UE5CORO_CPP20 && !UE5CORO_PRIVATE_LIBCPP_IS_BROKEN
 /** Resumes the coroutine once the chained static latent action has finished,
  *  with automatic parameter matching.<br>
  *  The result of the co_await expression is true if the chained latent action
diff --git a/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/LatentChain.inl b/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/LatentChain.inl
index 6d59500b..e3d21ab4 100644
--- a/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/LatentChain.inl
+++ b/Plugins/UE5Coro/Source/UE5Coro/Public/UE5Coro/LatentChain.inl
@@ -55,7 +55,7 @@ public:
 
 static_assert(sizeof(FLatentAwaiter) == sizeof(FLatentChainAwaiter));
 
-#if UE5CORO_CPP20
+#if UE5CORO_CPP20 && !UE5CORO_PRIVATE_LIBCPP_IS_BROKEN
 template<typename T>
 concept TWorldContext = std::same_as<std::decay_t<T>, UObject*> ||
                         std::same_as<std::decay_t<T>, const UObject*> ||
@@ -134,7 +134,7 @@ struct FLatentChain<bWorld, bInfo, Type, Types...>
 
 namespace UE5Coro::Latent
 {
-#if UE5CORO_CPP20
+#if UE5CORO_CPP20 && !UE5CORO_PRIVATE_LIBCPP_IS_BROKEN
 
 #if defined(_MSC_VER) && _MSC_VER < 1930
 #define UE5CORO_PRIVATE_LATENT_CHAIN_IS_OK 0
diff --git a/Plugins/UE5Coro/UE5Coro.uplugin b/Plugins/UE5Coro/UE5Coro.uplugin
index f501c1b1..f4b8a113 100644
--- a/Plugins/UE5Coro/UE5Coro.uplugin
+++ b/Plugins/UE5Coro/UE5Coro.uplugin
@@ -1,7 +1,7 @@
 {
 	"FileVersion": 3,
 	"Version": 1,
-	"VersionName": "1.9",
+	"VersionName": "1.10",
 	"FriendlyName": "UE5Coro",
 	"Description": "C++17/20 coroutine implementation for Unreal Engine",
 	"Category": "Programming",
diff --git a/Plugins/UE5CoroGAS/UE5CoroGAS.uplugin b/Plugins/UE5CoroGAS/UE5CoroGAS.uplugin
index 09c11738..6dcf6c76 100644
--- a/Plugins/UE5CoroGAS/UE5CoroGAS.uplugin
+++ b/Plugins/UE5CoroGAS/UE5CoroGAS.uplugin
@@ -1,7 +1,7 @@
 {
 	"FileVersion": 3,
 	"Version": 1,
-	"VersionName": "0.9",
+	"VersionName": "0.10",
 	"FriendlyName": "UE5Coro – Gameplay Ability System",
 	"Description": "C++17/20 coroutines for GAS",
 	"Category": "Programming",