From 693902151899c85ff00418d75df4377a1096efee Mon Sep 17 00:00:00 2001
From: Riccardo Cipolleschi <cipolleschi@meta.com>
Date: Fri, 16 Feb 2024 23:31:39 +0000
Subject: [PATCH] [RN][iOS] Improve Swift support for 3rd party libs (#42075)

---
 packages/react-native/ReactCommon/React-Fabric.podspec      | 3 ++-
 .../ReactCommon/react/debug/React-debug.podspec             | 5 ++++-
 .../react/renderer/graphics/React-graphics.podspec          | 6 +++++-
 .../ReactCommon/react/utils/React-utils.podspec             | 4 +++-
 4 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/packages/react-native/ReactCommon/React-Fabric.podspec b/packages/react-native/ReactCommon/React-Fabric.podspec
index 0644c97ba22b5c..f6a9217ff62e12 100644
--- a/packages/react-native/ReactCommon/React-Fabric.podspec
+++ b/packages/react-native/ReactCommon/React-Fabric.podspec
@@ -33,7 +33,8 @@ Pod::Spec.new do |s|
   s.source                 = source
   s.source_files           = "dummyFile.cpp"
   s.pod_target_xcconfig = { "USE_HEADERMAP" => "YES",
-                            "CLANG_CXX_LANGUAGE_STANDARD" => "c++17" }
+                            "CLANG_CXX_LANGUAGE_STANDARD" => "c++17",
+                            "DEFINES_MODULE" => "YES" }
 
   if ENV['USE_FRAMEWORKS']
     s.header_mappings_dir     = './'
diff --git a/packages/react-native/ReactCommon/react/debug/React-debug.podspec b/packages/react-native/ReactCommon/react/debug/React-debug.podspec
index dab4a31652edfa..e5c0f885fcb053 100644
--- a/packages/react-native/ReactCommon/react/debug/React-debug.podspec
+++ b/packages/react-native/ReactCommon/react/debug/React-debug.podspec
@@ -27,7 +27,10 @@ Pod::Spec.new do |s|
   s.source                 = source
   s.source_files           = "**/*.{cpp,h}"
   s.header_dir             = "react/debug"
-  s.pod_target_xcconfig    = { "CLANG_CXX_LANGUAGE_STANDARD" => "c++17" }
+  s.pod_target_xcconfig    = {
+    "CLANG_CXX_LANGUAGE_STANDARD" => "c++17",
+    "DEFINES_MODULE" => "YES"
+  }
 
   if ENV['USE_FRAMEWORKS']
     s.module_name            = "React_debug"
diff --git a/packages/react-native/ReactCommon/react/renderer/graphics/React-graphics.podspec b/packages/react-native/ReactCommon/react/renderer/graphics/React-graphics.podspec
index 19cc4ea84a7acf..5d034bd751228d 100644
--- a/packages/react-native/ReactCommon/react/renderer/graphics/React-graphics.podspec
+++ b/packages/react-native/ReactCommon/react/renderer/graphics/React-graphics.podspec
@@ -49,7 +49,11 @@ Pod::Spec.new do |s|
     header_search_paths = header_search_paths + ["\"$(PODS_TARGET_SRCROOT)/platform/ios\""]
   end
 
-  s.pod_target_xcconfig  = { "USE_HEADERMAP" => "NO", "HEADER_SEARCH_PATHS" => header_search_paths.join(" ") }
+  s.pod_target_xcconfig  = {
+    "USE_HEADERMAP" => "NO",
+    "HEADER_SEARCH_PATHS" => header_search_paths.join(" "),
+    "DEFINES_MODULE" => "YES"
+  }
 
   s.dependency "glog"
   s.dependency "RCT-Folly/Fabric", folly_version
diff --git a/packages/react-native/ReactCommon/react/utils/React-utils.podspec b/packages/react-native/ReactCommon/react/utils/React-utils.podspec
index d262c559241052..d4ea2ddd7b0222 100644
--- a/packages/react-native/ReactCommon/react/utils/React-utils.podspec
+++ b/packages/react-native/ReactCommon/react/utils/React-utils.podspec
@@ -44,7 +44,9 @@ Pod::Spec.new do |s|
   s.exclude_files          = "tests"
   s.pod_target_xcconfig    = {
     "CLANG_CXX_LANGUAGE_STANDARD" => "c++17",
-    "HEADER_SEARCH_PATHS" => header_search_paths.join(' ')}
+    "HEADER_SEARCH_PATHS" => header_search_paths.join(' '),
+    "DEFINES_MODULE" => "YES"
+  }
 
   if ENV['USE_FRAMEWORKS']
     s.module_name            = "React_utils"