add comments

1 files changed, 1 insertions, 1 deletions

diff --git a/tool/mk_builtin_loader.rb b/tool/mk_builtin_loader.rb
index 639e53a9c5..ffdd840d17 100644
--- a/tool/mk_builtin_loader.rb
+++ b/tool/mk_builtin_loader.rb
@@ -311,7 +311,7 @@ def mk_builtin_header file
           f.puts %'        fprintf(f, "    const VALUE *argv = GET_EP() - lnum - VM_ENV_DATA_SIZE + 1 + %ld;\\n", index);'
           f.puts %'    }'
         end
-        f.puts %'    fprintf(f, "    func f = (func)%p;\\n", (const void *)#{cfunc_name});'
+        f.puts %'    fprintf(f, "    func f = (func)/* #{cfunc_name} */%p;\\n", (const void *)#{cfunc_name});'
         f.puts %'    fprintf(f, "    val = f(ec, GET_SELF()#{argv});\\n");'
       end
       f.puts %'}'