fix: linux build.

Server/xmake.lua

@@ -2,14 +2,22 @@ add_rules("mode.debug", "mode.release")
 
 target("frelayServer")
     set_rules("qt.console")
-    add_files("../Res/server.rc")
     add_files("Server.cpp", "Server.h", "main.cpp")
     add_deps("ClientCore")
     add_deps("Protocol")
     add_deps("Util")
     add_frameworks("QtNetwork")
     
+    if is_plat("windows") then
+        add_files("../Res/server.rc")
+    end
+    
     if is_plat("mingw") then
+        add_files("../Res/server.rc")
     else
         add_deps("crashelper")
+    end
+
+    if is_plat("linux") then
+        add_links("dl")
     end