--- /dev/null
+diff -urN curl-7.12.1.org/configure.ac curl-7.12.1/configure.ac
+--- curl-7.12.1.org/configure.ac 2004-08-13 02:20:37.003335512 +0200
++++ curl-7.12.1/configure.ac 2004-08-13 02:21:07.172749064 +0200
+@@ -392,7 +392,7 @@
+ main()
+ {
+ if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
+- exit(1);
++ exit(0);
+ else
+ exit(0);
+ }