* ext/socket/init.c (rsock_init_sock): conditionally used variable.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29464 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/socket/init.c

@@ -43,9 +43,9 @@ VALUE
 rsock_init_sock(VALUE sock, int fd)
 {
     rb_io_t *fp;
+#ifndef _WIN32
     struct stat sbuf;
 
-#ifndef _WIN32
     if (fstat(fd, &sbuf) < 0)
         rb_sys_fail(0);
     if (!S_ISSOCK(sbuf.st_mode))