Limit adding /subsystem:windows to link.exe

For example, if you use Clang compiler AND Clang linker, this will give you an error, saying -subsystem:windows is not valid.

1 files changed, 1 insertions, 1 deletions

diff --git a/xmake/rules/winsdk/xmake.lua b/xmake/rules/winsdk/xmake.lua
index b782c4f1f..3c7e6fa0f 100644
--- a/xmake/rules/winsdk/xmake.lua
+++ b/xmake/rules/winsdk/xmake.lua
@@ -49,7 +49,7 @@ rule("win.sdk.application")
                 end
             end
             if not subsystem then
-                target:add("ldflags", "-subsystem:windows", {force = true})
+                target:add("ldflags", "-subsystem:windows", {force = true, tools = "link"})
             end
         end