From adb3beed64e800a270c5f9e83bbf53e110c35777 Mon Sep 17 00:00:00 2001
From: Riccardo Cipolleschi <cipolleschi@meta.com>
Date: Wed, 26 Mar 2025 08:25:25 -0700
Subject: [PATCH] Have react-hermes and React-renderercss define modules
 (#50283)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50283

In OSS we have some libraries written in Swift, like Flashlist, that depends on these pods.

However, if a pod is not configured to define modules, those pods cannot be imported by Swift. Therefore, the libraries above will failed to be installed in a project.

This change adds the defines_modules directive to those pods and make the library work again.

This fixes https://github.com/facebook/react-native/issues/50246

[Internal] - Make React-hermes and React-renderercss defines modules

Reviewed By: fabriziocucci

Differential Revision: D71892679

fbshipit-source-id: b03b65986fbdbe781b616f31dfb6bceb38b8b3b7
---
 packages/react-native/ReactCommon/hermes/React-hermes.podspec | 3 ++-
 .../ReactCommon/react/renderer/css/React-renderercss.podspec  | 4 +++-
 packages/rn-tester/Podfile.lock                               | 4 ++--
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/packages/react-native/ReactCommon/hermes/React-hermes.podspec b/packages/react-native/ReactCommon/hermes/React-hermes.podspec
index c29f6cd293d..0a0da650d2d 100644
--- a/packages/react-native/ReactCommon/hermes/React-hermes.podspec
+++ b/packages/react-native/ReactCommon/hermes/React-hermes.podspec
@@ -38,7 +38,8 @@ Pod::Spec.new do |s|
   s.compiler_flags         = folly_compiler_flags + ' ' + boost_compiler_flags
   s.pod_target_xcconfig    = {
                                "HEADER_SEARCH_PATHS" => "\"${PODS_ROOT}/hermes-engine/destroot/include\" \"$(PODS_TARGET_SRCROOT)/..\" \"$(PODS_ROOT)/boost\" \"$(PODS_ROOT)/RCT-Folly\" \"$(PODS_ROOT)/DoubleConversion\" \"$(PODS_ROOT)/fmt/include\"",
-                               "CLANG_CXX_LANGUAGE_STANDARD" => rct_cxx_language_standard()
+                               "CLANG_CXX_LANGUAGE_STANDARD" => rct_cxx_language_standard(),
+                               "DEFINES_MODULE" => "YES",
                              }
   s.header_dir             = "reacthermes"
   s.dependency "React-cxxreact", version
diff --git a/packages/react-native/ReactCommon/react/renderer/css/React-renderercss.podspec b/packages/react-native/ReactCommon/react/renderer/css/React-renderercss.podspec
index 8d0fa7d9c70..13bf3dde7be 100644
--- a/packages/react-native/ReactCommon/react/renderer/css/React-renderercss.podspec
+++ b/packages/react-native/ReactCommon/react/renderer/css/React-renderercss.podspec
@@ -36,7 +36,9 @@ Pod::Spec.new do |s|
   s.exclude_files          = "tests"
   s.pod_target_xcconfig    = {
     "CLANG_CXX_LANGUAGE_STANDARD" => rct_cxx_language_standard(),
-    "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_renderercss"
diff --git a/packages/rn-tester/Podfile.lock b/packages/rn-tester/Podfile.lock
index 1b68b052bfe..2abc5a715fc 100644
--- a/packages/rn-tester/Podfile.lock
+++ b/packages/rn-tester/Podfile.lock
@@ -2072,7 +2072,7 @@ SPEC CHECKSUMS:
   React-featureflags: e8b460883a5562ce85c934f248655a81d5e09f21
   React-featureflagsnativemodule: 1e45e1fbd40365126d7f3031c28b9adc3bb5a9ab
   React-graphics: 447cb78eeb5032559e52e108dfcaa617ddb4f8b2
-  React-hermes: b2c226849aead986fddb910095b8cbd6c021fd84
+  React-hermes: de7afc9a3c8f2f606b513e1117f744622b26e30f
   React-idlecallbacksnativemodule: f1ffb0492bb917e60173d96f900ba606747f2640
   React-ImageManager: 7516b2f25b0fdd0c2bacb1b9caf1c40ffa1164db
   React-jserrorhandler: 597481e95cb4fbb8fece874feece6260e1bc1811
@@ -2105,7 +2105,7 @@ SPEC CHECKSUMS:
   React-RCTText: 39b42fead378ad75d13098d2ea255babd926b362
   React-RCTVibration: 879098fe9af91e6258cdae398c47e73e5276c281
   React-rendererconsistency: a4d8b222d165650a4bff33cf50033e1adf9a87a3
-  React-renderercss: c7608edd7431dce92af0d474153e939543d96f15
+  React-renderercss: 9e2bccdc273677485ba16a59132799ab34276596
   React-rendererdebug: 1265d77c2abab3fde1f1450cf165725069452608
   React-rncore: 27f409047489a44511ad49e64fbc00b798455cbc
   React-RuntimeApple: c945d4c1529ea33db3f51156d362cbff596e1715