Fix build under C++

Commit 9ac6f7d90 was missing a few casts.

1 files changed, 2 insertions, 1 deletions

diff --git a/sv.c b/sv.c
index 5996ec17eb..2bf9e8f68b 100644
--- a/sv.c
+++ b/sv.c
@@ -10381,7 +10381,8 @@ Perl_sv_vcatpvfn_flags(pTHX_ SV *const sv, const char *const pat, const STRLEN p
 			goto vdblank;
 		    }
 		    vecsv = sv_newmortal();
-		    scan_vstring(vecstr, vecstr + veclen, vecsv);
+		    scan_vstring((char *)vecstr, (char *)vecstr + veclen,
+				 vecsv);
 		    vecstr = (U8*)SvPV_const(vecsv, veclen);
 		    vec_utf8 = DO_UTF8(vecsv);
 		}