added const char * => char * typecast

diff --git a/lib/mprintf.c b/lib/mprintf.c
index 9d44607..91f10fc 100644 (file)
--- a/lib/mprintf.c
+++ b/lib/mprintf.c
@@ -864,7 +864,7 @@ static int dprintf_formatf(
            p->flags &= (~FLAGS_ALT);
          }
          else {
-           str = "";
+           str = (char *)"";
            len = 0;
          }
        }