Fix some new warnings introduced after r5022

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5933 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/net.c b/net.c
index 10d23b4..cbf1cdf 100644
--- a/net.c
+++ b/net.c
@@ -284,8 +284,8 @@
     return 0;
 }
 
-#ifndef _WIN32
-int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
+#if !defined(_WIN32) && 0
+static int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
 {
     const char *p;
     int len;