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-rw-r--r--regparse.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/regparse.h b/regparse.h
index ca62ddd..80f5283 100644
--- a/regparse.h
+++ b/regparse.h
@@ -315,7 +315,7 @@ extern Node* onig_node_new_anchor P_((int type));
extern Node* onig_node_new_str P_((const UChar* s, const UChar* end));
extern Node* onig_node_new_list P_((Node* left, Node* right));
extern void onig_node_str_clear P_((Node* node));
-extern int onig_free_node_list();
+extern int onig_free_node_list(void);
extern int onig_names_free P_((regex_t* reg));
extern int onig_parse_make_tree P_((Node** root, const UChar* pattern, const UChar* end, regex_t* reg, ScanEnv* env));