io.c: fix local variables

* io.c (io_writev): fix local variable declarations, when
  writev(2) is not available.  [Feature #9323]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60351 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/io.c b/io.c
index 492139be56..7e82ba340a 100644
--- a/io.c
+++ b/io.c
@@ -1654,9 +1654,10 @@ static VALUE
 io_writev(int argc, VALUE *argv, VALUE io)
 {
     rb_io_t *fptr;
-    long n, total;
+    long n;
     VALUE str, tmp, total = INT2FIX(0);
     int nosync;
+    int i;
 
     io = GetWriteIO(io);
     tmp = rb_io_check_io(io);