make the function prototype match the header file

diff --git a/Plugin.xs b/Plugin.xs
index 32b2eae9d96c5950e130f9092241b852f9d31369..cc839c73d04757161b4187e1c1c50ff960749464 100644 (file)
--- a/Plugin.xs
+++ b/Plugin.xs
@@ -210,7 +210,7 @@ Plugin_free(pTHX_ REGEXP * const rx)
 }
 
 void *
-Plugin_dupe(pTHX_ const REGEXP * rx, CLONE_PARAMS *param)
+Plugin_dupe(pTHX_ REGEXP * const rx, CLONE_PARAMS *param)
 {
     Perl_croak(aTHX_ "dupe not supported yet");
     return rx->pprivate;