(rules) fix startwiths => startswith for platform.windows.subsystem rule

Author: Arthapz

xmake/rules/platform/windows/subsystem/xmake.lua

@@ -31,19 +31,21 @@ rule("platform.windows.subsystem")
         if subsystem then
             local valid = false
             for _, s in ipairs(subsystems) do
-                if subsystem:upper():startwiths(s) then
+                if subsystem:upper():startswith(s) then
                     valid = true
                     break
                 end
             end
             assert(valid, "Invalid subsystem " .. subsystem)
 
-            if target:has_tool("ld", "clang") then
+            if target:has_tool("ld", "clang", "clangxx", "clang-cl") then
                 target:add("ldflags", "-Wl,-subsystem:" .. subsystem, { force = true })
             elseif target:has_tool("ld", "link", "lld-link") then
                 target:add("ldflags", "/SUBSYSTEM:" .. upper(subsystem), { force = true })
-            elseif target:has_tool("ld", "gcc", "g++") then
+            elseif target:has_tool("ld", "gcc", "gxx") then
                 target:add("ldflags", "-Wl,-m" .. subsystem, { force = true })
+            elseif target:has_tool("ld", "lld") then
+                target:add("ldflags", "-subsystem:" .. subsystem, { force = true })
             elseif target:has_tool("ld", "ld") then
                 target:add("ldflags", "-m" .. subsystem, { force = true })
             end