[CF] Preliminary support for standalone builds.

This commit makes some preliminary fixes for standalone builds using
cmake. The standalone and Swift builds are similar, except for:
  * the CoreFoundation umbrella header,

  * ForSwiftFoundationOnly.h,

  * CFXMLParser.c and CFXMLNode.c, since these have CFTypeIDs that are
    present in CFRuntime_Internal.h behind DEPLOYMENT_RUNTIME_SWIFT, and

  * CFXMLInterface, since it refers to struct _NSCFXMLBridge, and this is
    defined in ForSwiftFoundationOnly.h.

Not present is a mechanism to refer to Block.h or dependent libraries.

Author: 3405691582

CoreFoundation/CMakeLists.txt

@@ -111,6 +111,11 @@ else()
   set(FRAMEWORK_LIBRARY_TYPE STATIC)
 endif()
 
+set(CF_HEADER Base.subproj/CoreFoundation.h)
+if(CF_DEPLOYMENT_SWIFT)
+  set(CF_HEADER Base.subproj/SwiftRuntime/CoreFoundation.h)
+  set(CF_SWIFT_PRIVATE_HEADERS Base.subproj/ForSwiftFoundationOnly.h)
+endif()
 add_framework(CoreFoundation
                 ${FRAMEWORK_LIBRARY_TYPE}
               FRAMEWORK_DIRECTORY
@@ -128,7 +133,6 @@ add_framework(CoreFoundation
                 Base.subproj/CFRuntime.h
                 Base.subproj/CFRuntime_Internal.h
                 Base.subproj/ForFoundationOnly.h
-                Base.subproj/ForSwiftFoundationOnly.h
                 # Collections
                 Collections.subproj/CFBasicHash.h
                 Collections.subproj/CFStorage.h
@@ -184,7 +188,9 @@ add_framework(CoreFoundation
                 URL.subproj/CFURL.inc.h
                 URL.subproj/CFURLPriv.h
                 URL.subproj/CFURLSessionInterface.h
+                ${CF_SWIFT_PRIVATE_HEADERS}
               PUBLIC_HEADERS
+                ${CF_HEADER}
                 # FIXME: PrivateHeaders referenced by public headers
                 Base.subproj/CFKnownLocations.h
                 Base.subproj/CFLocking.h
@@ -217,7 +223,6 @@ add_framework(CoreFoundation
                 Base.subproj/CFByteOrder.h
                 Base.subproj/CFUUID.h
                 Base.subproj/CFUtilities.h
-                Base.subproj/SwiftRuntime/CoreFoundation.h
                 Base.subproj/SwiftRuntime/TargetConditionals.h
                 # Collections
                 Collections.subproj/CFArray.h
@@ -311,8 +316,6 @@ add_framework(CoreFoundation
                 Parsing.subproj/CFOldStylePList.c
                 Parsing.subproj/CFPropertyList.c
                 Parsing.subproj/CFXMLInputStream.c
-                Parsing.subproj/CFXMLNode.c
-                Parsing.subproj/CFXMLParser.c
                 Parsing.subproj/CFXMLTree.c
                 # PlugIn
                 PlugIn.subproj/CFBundle_Binary.c
@@ -374,6 +377,12 @@ add_framework(CoreFoundation
                 URL.subproj/CFURL.c
                 URL.subproj/CFURLComponents.c
                 URL.subproj/CFURLComponents_URIParser.c)
+if(CF_DEPLOYMENT_SWIFT)
+  target_sources(CoreFoundation
+    PRIVATE
+      Parsing.subproj/CFXMLNode.c
+      Parsing.subproj/CFXMLParser.c)
+endif()
 target_compile_definitions(CoreFoundation
                            PRIVATE
                              $<$<COMPILE_LANGUAGE:ASM>:CF_CHARACTERSET_BITMAP="CharacterSets/CFCharacterSetBitmaps.bitmap">
@@ -421,22 +430,24 @@ if(NOT CMAKE_SYSTEM_NAME STREQUAL Darwin)
     CURL::libcurl)
 endif()
 
-add_framework(CFXMLInterface
-                ${FRAMEWORK_LIBRARY_TYPE}
-              FRAMEWORK_DIRECTORY
-                CFXMLInterface_FRAMEWORK_DIRECTORY
-              MODULE_MAP
-                Parsing.subproj/module.modulemap
-              PRIVATE_HEADERS
-                Parsing.subproj/CFXMLInterface.h
-              PUBLIC_HEADERS
-                Parsing.subproj/CFXMLInterface.h
-              SOURCES
-                Parsing.subproj/CFXMLInterface.c)
-add_dependencies(CFXMLInterface CoreFoundation)
-if(NOT CMAKE_SYSTEM_NAME STREQUAL Darwin)
-  target_link_libraries(CFXMLInterface PRIVATE
-    LibXml2::LibXml2)
+if(CF_DEPLOYMENT_SWIFT)
+  add_framework(CFXMLInterface
+                  ${FRAMEWORK_LIBRARY_TYPE}
+                FRAMEWORK_DIRECTORY
+                  CFXMLInterface_FRAMEWORK_DIRECTORY
+                MODULE_MAP
+                  Parsing.subproj/module.modulemap
+                PRIVATE_HEADERS
+                  Parsing.subproj/CFXMLInterface.h
+                PUBLIC_HEADERS
+                  Parsing.subproj/CFXMLInterface.h
+                SOURCES
+                  Parsing.subproj/CFXMLInterface.c)
+  add_dependencies(CFXMLInterface CoreFoundation)
+  if(NOT CMAKE_SYSTEM_NAME STREQUAL Darwin)
+    target_link_libraries(CFXMLInterface PRIVATE
+      LibXml2::LibXml2)
+  endif()
 endif()
 
 if(CMAKE_SYSTEM_NAME STREQUAL Windows)
@@ -470,12 +481,14 @@ if(CMAKE_SYSTEM_NAME STREQUAL Windows)
                           Secur32
                           User32
                           mincore)
-  target_link_libraries(CFXMLInterface
-                        PRIVATE
-                          AdvAPI32
-                          Secur32
-                          User32
-                          mincore)
+  if(CF_DEPLOYMENT_SWIFT)
+    target_link_libraries(CFXMLInterface
+                          PRIVATE
+                            AdvAPI32
+                            Secur32
+                            User32
+                            mincore)
+  endif()
 endif()
 if(NOT CMAKE_SYSTEM_NAME STREQUAL Windows AND NOT CMAKE_SYSTEM_NAME STREQUAL Darwin)
   target_link_libraries(CoreFoundation
@@ -484,19 +497,23 @@ if(NOT CMAKE_SYSTEM_NAME STREQUAL Windows AND NOT CMAKE_SYSTEM_NAME STREQUAL Dar
   target_link_libraries(CFURLSessionInterface
                         PRIVATE
                           m)
-  target_link_libraries(CFXMLInterface
-                        PRIVATE
-                          m)
+  if(CF_DEPLOYMENT_SWIFT)
+    target_link_libraries(CFXMLInterface
+                          PRIVATE
+                            m)
+  endif()
 endif()
 target_link_libraries(CoreFoundation
                       PRIVATE
                         dispatch)
 target_link_libraries(CFURLSessionInterface
                       PRIVATE
                         dispatch)
-target_link_libraries(CFXMLInterface
-                      PRIVATE
-                        dispatch)
+if(CF_DEPLOYMENT_SWIFT)
+  target_link_libraries(CFXMLInterface
+                        PRIVATE
+                          dispatch)
+endif()
 if(CMAKE_SYSTEM_NAME STREQUAL Darwin)
   target_link_libraries(CoreFoundation
                         PRIVATE
@@ -515,9 +532,14 @@ endif()
 install(TARGETS
           CoreFoundation
           CFURLSessionInterface
-          CFXMLInterface
         DESTINATION
           "${CMAKE_INSTALL_FULL_LIBDIR}")
+if(CF_DEPLOYMENT_SWIFT)
+  install(TARGETS
+            CFXMLInterface
+          DESTINATION
+            "${CMAKE_INSTALL_FULL_LIBDIR}")
+endif()
 
 # Needed to avoid double slash "//" when CMAKE_INSTALL_PREFIX set to "/" and DESTDIR used to relocate whole installation.
 # Double slash raise CMake error "file called with network path DESTINATION //System/Library/Frameworks".