add const qualifier to rpmtag_from_string() argument

1 files changed, 1 insertions, 1 deletions

diff --git a/URPM.xs b/URPM.xs
index cad9f0b..e4c3282 100644
--- a/URPM.xs
+++ b/URPM.xs
@@ -1531,7 +1531,7 @@ static void *rpmRunTransactions_callback(__attribute__((unused)) const void *h,
   return callback == td->callback_open ? fd : NULL;
 }
 
-static int rpmtag_from_string(char *tag)
+static int rpmtag_from_string(const char *tag)
 {
   static rpmconst c = NULL;
   static const char context[] = "rpmtag";