After applying this patch, you can compile CVS libvirt with -Werror. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903 Index: src/remote_internal.c =================================================================== RCS file: /data/cvs/libvirt/src/remote_internal.c,v retrieving revision 1.43 diff -u -r1.43 remote_internal.c --- src/remote_internal.c 5 Dec 2007 21:31:07 -0000 1.43 +++ src/remote_internal.c 6 Dec 2007 11:22:21 -0000 @@ -2841,7 +2859,12 @@ static int remoteAuthenticate (virConnectPtr conn, struct private_data *priv, int in_open, - virConnectAuthPtr auth, const char *authtype) + virConnectAuthPtr auth +#if !HAVE_SASL && !HAVE_POLKIT + ATTRIBUTE_UNUSED +#endif + , + const char *authtype)