Merge topic 'objc-link-main' into release-3.16

db91c5f776 ObjC: Set same settings for all languages supported on Darwin

Acked-by: Kitware Robot <[email protected]>
Merge-request: !4012

Modules/Platform/Darwin.cmake

@@ -52,24 +52,21 @@ if("${DARWIN_MAJOR_VERSION}" GREATER 8)
   set(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,")
 endif()
 
-set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ")
-set(CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ")
-set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}")
-set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}")
+foreach(lang C CXX OBJC OBJCXX)
+  set(CMAKE_${lang}_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ")
+  set(CMAKE_${lang}_OSX_CURRENT_VERSION_FLAG "-current_version ")
+  set(CMAKE_${lang}_LINK_FLAGS "-Wl,-headerpad_max_install_names")
 
-set(CMAKE_C_LINK_FLAGS "-Wl,-headerpad_max_install_names")
-set(CMAKE_CXX_LINK_FLAGS "-Wl,-headerpad_max_install_names")
+  if(HAVE_FLAG_SEARCH_PATHS_FIRST)
+    set(CMAKE_${lang}_LINK_FLAGS "-Wl,-search_paths_first ${CMAKE_${lang}_LINK_FLAGS}")
+  endif()
 
-if(HAVE_FLAG_SEARCH_PATHS_FIRST)
-  set(CMAKE_C_LINK_FLAGS "-Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}")
-  set(CMAKE_CXX_LINK_FLAGS "-Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}")
-endif()
+  set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
+  set(CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS "-bundle -Wl,-headerpad_max_install_names")
+  set(CMAKE_SHARED_MODULE_LOADER_${lang}_FLAG "-Wl,-bundle_loader,")
+endforeach()
 
 set(CMAKE_PLATFORM_HAS_INSTALLNAME 1)
-set(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
-set(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -Wl,-headerpad_max_install_names")
-set(CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,")
-set(CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,")
 set(CMAKE_FIND_LIBRARY_SUFFIXES ".tbd" ".dylib" ".so" ".a")
 
 # hack: if a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old build tree
@@ -84,12 +81,6 @@ endif()
 # Enable shared library versioning.
 set(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-install_name")
 
-# Xcode does not support -isystem yet.
-if(XCODE)
-  set(CMAKE_INCLUDE_SYSTEM_FLAG_C)
-  set(CMAKE_INCLUDE_SYSTEM_FLAG_CXX)
-endif()
-
 if("${_CURRENT_OSX_VERSION}" VERSION_LESS "10.5")
   # Need to list dependent shared libraries on link line.  When building
   # with -isysroot (for universal binaries), the linker always looks for
@@ -98,40 +89,25 @@ if("${_CURRENT_OSX_VERSION}" VERSION_LESS "10.5")
   set(CMAKE_LINK_DEPENDENT_LIBRARY_FILES 1)
 endif()
 
-set(CMAKE_C_CREATE_SHARED_LIBRARY
-  "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
-set(CMAKE_CXX_CREATE_SHARED_LIBRARY
-  "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
-set(CMAKE_Fortran_CREATE_SHARED_LIBRARY
-  "<CMAKE_Fortran_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
-
-set(CMAKE_CXX_CREATE_SHARED_MODULE
-      "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
-
-set(CMAKE_C_CREATE_SHARED_MODULE
-      "<CMAKE_C_COMPILER>  <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
-
-set(CMAKE_Fortran_CREATE_SHARED_MODULE
-      "<CMAKE_Fortran_COMPILER>  <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
+foreach(lang C CXX Fortran OBJC OBJCXX)
+  # Xcode does not support -isystem yet.
+  if(XCODE)
+    set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang})
+  endif()
 
-set(CMAKE_C_CREATE_MACOSX_FRAMEWORK
-      "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
-set(CMAKE_CXX_CREATE_MACOSX_FRAMEWORK
-      "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
+  set(CMAKE_${lang}_CREATE_SHARED_LIBRARY
+    "<CMAKE_${lang}_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
 
-set(CMAKE_OBJC_CREATE_MACOSX_FRAMEWORK
-      "<CMAKE_OBJC_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_OBJC_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
+  set(CMAKE_${lang}_CREATE_SHARED_MODULE
+      "<CMAKE_${lang}_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
 
-set(CMAKE_OBJCXX_CREATE_MACOSX_FRAMEWORK
-      "<CMAKE_OBJCXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_OBJCXX_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
+  set(CMAKE_${lang}_CREATE_MACOSX_FRAMEWORK
+      "<CMAKE_${lang}_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
 
-# Set default framework search path flag for languages known to use a
-# preprocessor that may find headers in frameworks.
-set(CMAKE_C_FRAMEWORK_SEARCH_FLAG -F)
-set(CMAKE_CXX_FRAMEWORK_SEARCH_FLAG -F)
-set(CMAKE_OBJC_FRAMEWORK_SEARCH_FLAG -F)
-set(CMAKE_OBJCXX_FRAMEWORK_SEARCH_FLAG -F)
-set(CMAKE_Fortran_FRAMEWORK_SEARCH_FLAG -F)
+  # Set default framework search path flag for languages known to use a
+  # preprocessor that may find headers in frameworks.
+  set(CMAKE_${lang}_FRAMEWORK_SEARCH_FLAG -F)
+endforeach()
 
 # default to searching for frameworks first
 if(NOT DEFINED CMAKE_FIND_FRAMEWORK)