Merge pull request #81408 from swiftlang/egorzhdan/do-not-install-swiftmodules

[cxx-interop] Do not install binary `.swiftmodule` files for the overlays

Author: egorzhdan

stdlib/cmake/modules/SwiftSource.cmake

@@ -749,7 +749,9 @@ function(_compile_swift_files
     endif()
 
     set(exclude_binary_swiftmodule_installation_args "")
-    if(NOT SWIFTFILE_INSTALL_BINARY_SWIFTMODULE)
+    if(NOT SWIFTFILE_INSTALL_BINARY_SWIFTMODULE OR
+       (SWIFTFILE_INSTALL_BINARY_SWIFTMODULE STREQUAL "NON_DARWIN_ONLY" AND
+        SWIFTFILE_SDK IN_LIST SWIFT_DARWIN_PLATFORMS))
         list(APPEND
           exclude_binary_swiftmodule_installation_args
           "REGEX" "${SWIFTFILE_MODULE_NAME}.swiftmodule/[^/]*\\.swiftmodule$" EXCLUDE)

stdlib/public/Cxx/CMakeLists.txt

@@ -39,6 +39,7 @@ add_swift_target_library(swiftCxx STATIC NO_LINK_NAME IS_STDLIB IS_SWIFT_ONLY
     DEPENDS ${SWIFT_CXX_DEPS}
     MACCATALYST_BUILD_FLAVOR zippered
     INSTALL_IN_COMPONENT compiler
+    INSTALL_BINARY_SWIFTMODULE NON_DARWIN_ONLY
     INSTALL_WITH_SHARED)
 
 add_subdirectory(libstdcxx)

stdlib/public/Cxx/std/CMakeLists.txt

@@ -81,5 +81,6 @@ add_swift_target_library(swiftCxxStdlib STATIC NO_LINK_NAME IS_STDLIB IS_SWIFT_O
     TARGET_SDKS ALL_APPLE_PLATFORMS LINUX WINDOWS ANDROID
     MACCATALYST_BUILD_FLAVOR zippered
     INSTALL_IN_COMPONENT compiler
+    INSTALL_BINARY_SWIFTMODULE NON_DARWIN_ONLY
     INSTALL_WITH_SHARED
     DEPENDS libstdcxx-modulemap libcxxshim_modulemap CxxStdlib-apinotes)