blead: format warnings

[p5sagit/p5-mst-13.2.git] / sv.c

diff --git a/sv.c b/sv.c
index 8800ddf..b2cd1d8 100644 (file)
--- a/sv.c
+++ b/sv.c
@@ -1152,7 +1152,8 @@ Perl_sv_upgrade(pTHX_ register SV *sv, U32 new_type)
            SvPV_set(sv, 0);
        break;
     default:
-       Perl_croak(aTHX_ "panic: sv_upgrade to unknown type %lu", new_type);
+       Perl_croak(aTHX_ "panic: sv_upgrade to unknown type %lu",
+                  (unsigned long)new_type);
     }
 
     if (old_type_details->size) {