WIP/Foundation: port to Windows

Unformalised changes to port Foundation to Windows

Author: compnerd

CMakeLists.txt

@@ -110,6 +110,7 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL FreeBSD)
   set(Foundation_rpath_flags -Xlinker;-rpath;-Xlinker;"\\\$\$ORIGIN")
 elseif(CMAKE_SYSTEM_NAME STREQUAL Windows)
   set(deployment_target -DDEPLOYMENT_TARGET_WINDOWS)
+  set(CoreFoundation_INTERFACE_LIBRARIES -lWS2_32 -lUser32 -lmsvcrt -ladvapi32 -lshell32 -lrpcrt4 -lsecur32 -lPathcch -lOle32 -lCrypt32 -lwldap32 -lNormaliz -lDbgHelp -lIphlpapi)
 endif()
 
 add_swift_library(Foundation
@@ -298,13 +299,15 @@ add_swift_library(Foundation
                     -L${CMAKE_CURRENT_BINARY_DIR}
                     -luuid
                     ${Foundation_rpath_flags}
+                    ${CoreFoundation_INTERFACE_LIBRARIES}
                   SWIFT_FLAGS
                     -DDEPLOYMENT_RUNTIME_SWIFT
                     ${deployment_enable_libdispatch}
                     -I;${ICU_INCLUDE_DIR}
                     ${libdispatch_cflags}
                     ${swift_enable_testing}
                     ${swift_optimization_flags}
+                    -Xcc -D_DLL
                   DEPENDS
                     CoreFoundation)
 

CoreFoundation/CMakeLists.txt

@@ -353,6 +353,12 @@ if(CF_DEPLOYMENT_SWIFT)
   target_compile_definitions(CoreFoundation
                              PRIVATE
                                -DDEPLOYMENT_RUNTIME_SWIFT)
+  if(CMAKE_SYSTEM_NAME STREQUAL Windows)
+    target_compile_definitions(CoreFoundation
+                               PRIVATE
+                                 -D_DLL
+                                 -DCURL_STATICLIB)
+  endif()
 else()
   target_compile_definitions(CoreFoundation
                              PRIVATE

Foundation/FileHandle.swift

@@ -27,6 +27,10 @@ open class FileHandle : NSObject, NSSecureCoding {
 #if os(Windows)
     private var _handle: HANDLE
 
+    internal var handle: HANDLE {
+      return _handle
+    }
+
     @available(Windows, unavailable, message: "Cannot perform non-owning handle to fd conversion")
     open var fileDescriptor: Int32 {
         NSUnsupported()