Declare file local variables and functions static

Avoid missing prototype warnings by declaring variables and functions
that are only used in a single file static.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/sp_var_parser.c b/src/sp_var_parser.c
index 81d696f..c7562f3 100644
--- a/src/sp_var_parser.c
+++ b/src/sp_var_parser.c
@@ -100,7 +100,7 @@ err:
   return err;
 }
 
-int cmp_tokens(sp_list_node const *const list1,
+static int cmp_tokens(sp_list_node const *const list1,
                sp_list_node const *const list2) {
   return (((sp_conf_token *)list1->data)->pos -
           ((sp_conf_token *)list2->data)->pos);