Moved SwiftFoundation_MODULE_TRIPLE to top scope

Author: iCharlesHu

CMakeLists.txt

@@ -67,6 +67,18 @@ else()
 endif()
 FetchContent_MakeAvailable(SwiftFoundationICU SwiftFoundation)
 
+# Precompute module triple for installation
+if(NOT SwiftFoundation_MODULE_TRIPLE)
+    set(module_triple_command "${CMAKE_Swift_COMPILER}" -print-target-info)
+    if(CMAKE_Swift_COMPILER_TARGET)
+        list(APPEND module_triple_command -target ${CMAKE_Swift_COMPILER_TARGET})
+    endif()
+    execute_process(COMMAND ${module_triple_command} OUTPUT_VARIABLE target_info_json)
+    string(JSON module_triple GET "${target_info_json}" "target" "moduleTriple")
+    set(SwiftFoundation_MODULE_TRIPLE "${module_triple}" CACHE STRING "swift module triple used for installed swiftmodule and swiftinterface files")
+    mark_as_advanced(SwiftFoundation_MODULE_TRIPLE)
+endif()
+
 # System dependencies (fail fast if dependencies are missing)
 find_package(LibXml2 REQUIRED)
 find_package(CURL REQUIRED)

cmake/modules/FoundationSwiftSupport.cmake

@@ -35,17 +35,6 @@ function(_foundation_install_target module)
     set(module_name ${module})
   endif()
 
-  if(NOT SwiftFoundation_MODULE_TRIPLE)
-    set(module_triple_command "${CMAKE_Swift_COMPILER}" -print-target-info)
-    if(CMAKE_Swift_COMPILER_TARGET)
-      list(APPEND module_triple_command -target ${CMAKE_Swift_COMPILER_TARGET})
-    endif()
-    execute_process(COMMAND ${module_triple_command} OUTPUT_VARIABLE target_info_json)
-    string(JSON module_triple GET "${target_info_json}" "target" "moduleTriple")
-    set(SwiftFoundation_MODULE_TRIPLE "${module_triple}" CACHE STRING "swift module triple used for installed swiftmodule and swiftinterface files")
-    mark_as_advanced(SwiftFoundation_MODULE_TRIPLE)
-  endif()
-
   install(FILES $<TARGET_PROPERTY:${module},Swift_MODULE_DIRECTORY>/${module_name}.swiftdoc
     DESTINATION lib/${swift}/${swift_os}/${module_name}.swiftmodule
     RENAME ${SwiftFoundation_MODULE_TRIPLE}.swiftdoc)