From 5bd1a4256e0f55bada2b3c277e1dc8aba67a57ce Mon Sep 17 00:00:00 2001
From: Lorenzo Sciandra <lsciandra@microsoft.com>
Date: Wed, 14 Jun 2023 10:38:11 +0100
Subject: [PATCH] [LOCAL] Make 0.70 compatible with Xcode 15 (thanks to
 @AlexanderEggers for the commit in main)

---
 scripts/cocoapods/__tests__/utils-test.rb | 54 +++++++++++++++++++++++
 scripts/cocoapods/utils.rb                | 12 +++++
 scripts/react_native_pods.rb              |  1 +
 3 files changed, 67 insertions(+)

diff --git a/scripts/cocoapods/__tests__/utils-test.rb b/scripts/cocoapods/__tests__/utils-test.rb
index fd1fdc3c5a1507..48b469f9fea269 100644
--- a/scripts/cocoapods/__tests__/utils-test.rb
+++ b/scripts/cocoapods/__tests__/utils-test.rb
@@ -435,6 +435,60 @@ def test_applyMacCatalystPatches_correctlyAppliesNecessaryPatches
         assert_equal(user_project_mock.save_invocation_count, 1)
     end
 
+    # ================================= #
+    # Test - Apply Xcode 15 Patch       #
+    # ================================= #
+
+    def test_applyXcode15Patch_correctlyAppliesNecessaryPatch
+        # Arrange
+        first_target = prepare_target("FirstTarget")
+        second_target = prepare_target("SecondTarget")
+        third_target = TargetMock.new("ThirdTarget", [
+            BuildConfigurationMock.new("Debug", {
+              "GCC_PREPROCESSOR_DEFINITIONS" => '$(inherited) "SomeFlag=1" '
+            }),
+            BuildConfigurationMock.new("Release", {
+              "GCC_PREPROCESSOR_DEFINITIONS" => '$(inherited) "SomeFlag=1" '
+            }),
+        ], nil)
+
+        user_project_mock = UserProjectMock.new("a/path", [
+                prepare_config("Debug"),
+                prepare_config("Release"),
+            ],
+            :native_targets => [
+                first_target,
+                second_target
+            ]
+        )
+        pods_projects_mock = PodsProjectMock.new([], {"hermes-engine" => {}}, :native_targets => [
+            third_target
+        ])
+        installer = InstallerMock.new(pods_projects_mock, [
+            AggregatedProjectMock.new(user_project_mock)
+        ])
+
+        # Act
+        ReactNativePodsUtils.apply_xcode_15_patch(installer)
+
+        # Assert
+        first_target.build_configurations.each do |config|
+            assert_equal(config.build_settings["GCC_PREPROCESSOR_DEFINITIONS"].strip,
+                '$(inherited) "_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION"'
+            )
+        end
+        second_target.build_configurations.each do |config|
+            assert_equal(config.build_settings["GCC_PREPROCESSOR_DEFINITIONS"].strip,
+                '$(inherited) "_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION"'
+            )
+        end
+        third_target.build_configurations.each do |config|
+            assert_equal(config.build_settings["GCC_PREPROCESSOR_DEFINITIONS"].strip,
+                '$(inherited) "SomeFlag=1" "_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION"'
+            )
+        end
+    end
+
     # ==================================== #
     # Test - Set Node_Modules User Setting #
     # ==================================== #
diff --git a/scripts/cocoapods/utils.rb b/scripts/cocoapods/utils.rb
index e5cc2e3c3df7b1..df23da4779e758 100644
--- a/scripts/cocoapods/utils.rb
+++ b/scripts/cocoapods/utils.rb
@@ -131,6 +131,18 @@ def self.apply_mac_catalyst_patches(installer)
         end
     end
 
+    def self.apply_xcode_15_patch(installer)
+        installer.target_installation_results.pod_target_installation_results
+            .each do |pod_name, target_installation_result|
+                target_installation_result.native_target.build_configurations.each do |config|
+                    # unary_function and binary_function are no longer provided in C++17 and newer standard modes as part of Xcode 15. They can be re-enabled with setting _LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION
+                    # Ref: https://developer.apple.com/documentation/xcode-release-notes/xcode-15-release-notes#Deprecations
+                    config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= '$(inherited) '
+                    config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] << '"_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION" '
+            end
+        end
+    end
+
     private
 
     def self.fix_library_search_path(config)
diff --git a/scripts/react_native_pods.rb b/scripts/react_native_pods.rb
index 88199595db674d..6be410977790cf 100644
--- a/scripts/react_native_pods.rb
+++ b/scripts/react_native_pods.rb
@@ -223,6 +223,7 @@ def react_native_post_install(installer, react_native_path = "../node_modules/re
   ReactNativePodsUtils.exclude_i386_architecture_while_using_hermes(installer)
   ReactNativePodsUtils.fix_library_search_paths(installer)
   ReactNativePodsUtils.set_node_modules_user_settings(installer, react_native_path)
+  ReactNativePodsUtils.apply_xcode_15_patch(installer)
 
   NewArchitectureHelper.set_clang_cxx_language_standard_if_needed(installer)
   is_new_arch_enabled = ENV['RCT_NEW_ARCH_ENABLED'] == "1"