aiccu: fix build with gnutls-3.4.x (Alpine patch)

srcpkgs/aiccu/patches/gnutls-3.4.0.patch

@@ -0,0 +1,20 @@
+--- common/common.c	2015-04-17 23:08:32.543680010 +0200
++++ common/common.c.new	2015-04-17 23:14:02.152457972 +0200
+@@ -272,7 +272,6 @@
+ {
+ #ifdef AICCU_GNUTLS
+ 	/* Allow connections to servers that have OpenPGP keys as well */
+-	const int	cert_type_priority[3] = { GNUTLS_CRT_X509, GNUTLS_CRT_OPENPGP, 0 };
+ 	int		ret;
+ #endif /* AICCU_GNUTLS*/
+ 
+@@ -300,8 +299,7 @@
+ 	gnutls_set_default_priority(sock->session);
+ 	/* XXX: Return value is not documented in GNUTLS documentation! */
+ 
+-	gnutls_certificate_type_set_priority(sock->session, cert_type_priority);
+-	/* XXX: Return value is not documented in GNUTLS documentation! */
++	gnutls_priority_set_direct(sock->session, "NORMAL:+CTYPE-OPENPGP", NULL);
+ 
+ 	/* Configure the x509 credentials for the current session */
+ 	gnutls_credentials_set(sock->session, GNUTLS_CRD_CERTIFICATE, g_aiccu->tls_cred);