1 files changed, 14 insertions, 9 deletions
diff --git a/xmake/modules/core/tools/fpc.lua b/xmake/modules/core/tools/fpc.lua
index 98b746c8a..57af7a45b 100644
--- a/xmake/modules/core/tools/fpc.lua
+++ b/xmake/modules/core/tools/fpc.lua
@@ -22,6 +22,7 @@
 import("core.base.option")
 import("core.project.config")
 import("core.project.project")
+import("core.language.language")
 
 -- init it
 function init(self)
@@ -32,15 +33,19 @@ end
 
 -- make the optimize flag
 function nf_optimize(self, level)
-    local maps =
-    {
-        none       = "-O-"
-    ,   fast       = "-O1"
-    ,   fastest    = "-O3"
-    ,   smallest   = "-O2"
-    ,   aggressive = "-O4"
-    }
-    return maps[level]
+    -- only for source kind
+    local kind = self:kind()
+    if language.sourcekinds()[kind] then
+        local maps =
+        {
+            none       = "-O-"
+        ,   fast       = "-O1"
+        ,   fastest    = "-O3"
+        ,   smallest   = "-O2"
+        ,   aggressive = "-O4"
+        }
+        return maps[level]
+    end
 end
 
 -- make the strip flag