glib2: Fix GCredentials support for NetBSD

The GCredentials support for NetBSD missed a
G_CREDENTIALS_SOCKET_GET_CREDENTIALS_SUPPORTED define and remove
commented out G_CREDENTIALS_UNIX_CREDENTIALS_MESSAGE_SUPPORTED.

Due that the client sent credentials but the server was not able
to receive them.

Regarding possible G_CREDENTIALS_UNIX_CREDENTIALS_MESSAGE_SUPPORTED
support probably logic for LOCAL_CREDS should be added but on NetBSD
before 8.0 sc_pid field is not present making that probably not
suitable to use as GCredentials mechanism (since 8.0 this will
probably work).

Bump PKGREVISION

Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/devel/glib2/Makefile,v
retrieving revision 1.243
diff -u -p -r1.243 Makefile
--- Makefile	8 Oct 2018 10:12:05 -0000	1.243
+++ Makefile	12 Oct 2018 09:17:33 -0000
@@ -1,6 +1,6 @@
 # $NetBSD: Makefile,v 1.243 2018/10/08 10:12:05 prlw1 Exp $
 
-PKGREVISION= 2
+PKGREVISION= 3
 .include "Makefile.common"
 
 CATEGORIES=		devel gnome
Index: distinfo
===================================================================
RCS file: /cvsroot/pkgsrc/devel/glib2/distinfo,v
retrieving revision 1.236
diff -u -p -r1.236 distinfo
--- distinfo	8 Oct 2018 10:12:05 -0000	1.236
+++ distinfo	12 Oct 2018 09:17:33 -0000
@@ -17,10 +17,12 @@ SHA1 (patch-cb) = 56e2a9b2de04c8e528faf7
 SHA1 (patch-cd) = a8a90eca84a687400a92b0e26fafe4b9b6014ec3
 SHA1 (patch-cl) = 58e5b4a3e8cf0750ceadba30e379954d800f77f7
 SHA1 (patch-cm) = 534af37ae8f2bd667f630142058d4de5ea91be93
+SHA1 (patch-gio_gcredentialsprivate.h) = dab92e07f8357a7dc1a569e37f65f9b199aee281
 SHA1 (patch-gio_gdbus-2.0_codegen_gdbus-codegen.in) = ccbb10335fb477e347993444d68d5e88d9e93050
 SHA1 (patch-gio_giomodule.c) = 08181ad8d46dde1a028faa246a4852e474610eaa
 SHA1 (patch-gio_glocalfileinfo.c) = 8e0b7e9543ce3c702c468f56e7ecf418d70b049f
 SHA1 (patch-gio_gresource-tool.c) = 4eb7c9df25e9ac3e977edf3be8fb977a6fb39182
+SHA1 (patch-gio_gunixcredentialsmessage.c) = c13119ddd6262db7c03e53857e987f0c495d3312
 SHA1 (patch-gio_inotify_inotify-kernel.c) = 18fc55be06dfa4ebf7128b8d1888aaff3b2b95c0
 SHA1 (patch-glib_gmain.c) = d09ff66e475ee52d37ac0dcb463110f690ce6511
 SHA1 (patch-glib_gthread-posix.c) = ca93c8dc358453eb79b518c884464c90d7628888
Index: patches/patch-gio_gcredentialsprivate.h
===================================================================
RCS file: patches/patch-gio_gcredentialsprivate.h
diff -N patches/patch-gio_gcredentialsprivate.h
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ patches/patch-gio_gcredentialsprivate.h	12 Oct 2018 09:17:33 -0000
@@ -0,0 +1,15 @@
+$NetBSD$
+
+NetBSD has G_CREDENTIALS_SOCKET_GET_CREDENTIALS_SUPPORTED.
+
+--- gio/gcredentialsprivate.h.orig	2017-07-13 23:03:38.000000000 +0000
++++ gio/gcredentialsprivate.h
+@@ -47,7 +47,7 @@
+ #define G_CREDENTIALS_USE_NETBSD_UNPCBID 1
+ #define G_CREDENTIALS_NATIVE_TYPE G_CREDENTIALS_TYPE_NETBSD_UNPCBID
+ #define G_CREDENTIALS_NATIVE_SIZE (sizeof (struct unpcbid))
+-/* #undef G_CREDENTIALS_UNIX_CREDENTIALS_MESSAGE_SUPPORTED */
++#define G_CREDENTIALS_SOCKET_GET_CREDENTIALS_SUPPORTED 1
+ #define G_CREDENTIALS_SPOOFING_SUPPORTED 1
+ 
+ #elif defined(__OpenBSD__)
Index: patches/patch-gio_gunixcredentialsmessage.c
===================================================================
RCS file: patches/patch-gio_gunixcredentialsmessage.c
diff -N patches/patch-gio_gunixcredentialsmessage.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ patches/patch-gio_gunixcredentialsmessage.c	12 Oct 2018 09:17:33 -0000
@@ -0,0 +1,18 @@
+$NetBSD$
+
+Remove unused NetBSD case (G_CREDENTIALS_TYPE_NETBSD_UNPCBID does
+not support that, LOCAL_CREDS should be probably be used instead.
+Please not that before NetBSD 8.0 LOCAL_CREDS did not have an sc_pid
+field making it probably not suitable as GCredentials mechanism).
+
+--- gio/gunixcredentialsmessage.c.orig	2017-07-13 23:03:39.000000000 +0000
++++ gio/gunixcredentialsmessage.c
+@@ -89,8 +89,6 @@ g_unix_credentials_message_get_msg_type 
+   return SCM_CREDENTIALS;
+ #elif G_CREDENTIALS_USE_FREEBSD_CMSGCRED
+   return SCM_CREDS;
+-#elif G_CREDENTIALS_USE_NETBSD_UNPCBID
+-  return SCM_CREDS;
+ #elif G_CREDENTIALS_USE_SOLARIS_UCRED
+   return SCM_UCRED;
+ #elif G_CREDENTIALS_UNIX_CREDENTIALS_MESSAGE_SUPPORTED