Merge pull request #500 from compnerd/windows-android

Windows Android cross-compilation build support

Author: compnerd

cmake/modules/SwiftSupport.cmake

@@ -9,7 +9,7 @@ function(add_swift_target target)
   cmake_parse_arguments(AST "${options}" "${single_value_options}" "${multiple_value_options}" ${ARGN})
 
   set(compile_flags ${CMAKE_SWIFT_FLAGS})
-  set(link_flags)
+  set(link_flags ${CMAKE_SWIFT_LINK_FLAGS})
 
   if(AST_TARGET)
     list(APPEND compile_flags -target;${AST_TARGET})

src/CMakeLists.txt

@@ -116,9 +116,17 @@ if(ENABLE_SWIFT)
                           POSITION_INDEPENDENT_CODE YES)
 
   if(USE_LLD_LINKER)
-    set(use_ld_flag -use-ld=lld)
+    if(CMAKE_HOST_SYSTEM_NAME STREQUAL Windows)
+      set(use_ld_flag -use-ld=lld.exe)
+    else()
+      set(use_ld_flag -use-ld=lld)
+    endif()
   elseif(USE_GOLD_LINKER)
-    set(use_ld_flag -use-ld=gold)
+    if(CMAKE_HOST_SYSTEM_NAME STREQUAL Windows)
+      set(use_ld_flag -use-ld=gold.exe)
+    else()
+      set(use_ld_flag -use-ld=gold)
+    endif()
   endif()
 
   add_swift_library(swiftDispatch