[glib-networking] proxy/gnome: only use this when running under GNOME

[Dan Winship <danw src gnome org>]

commit 83c85c2108be016613e85e07790eb0d492ae8214
Author: Dan Winship <danw gnome org>
Date:   Sun Dec 9 18:55:33 2012 +0100

    proxy/gnome: only use this when running under GNOME
    
    The original idea had been that people could just not build/install
    this module if they didn't want the GNOME proxy settings, but that
    hasn't really worked. So change it to only use this module when in a
    GNOME session (falling back to the libproxy module otherwise).

 proxy/gnome/gproxyresolvergnome.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/proxy/gnome/gproxyresolvergnome.c b/proxy/gnome/gproxyresolvergnome.c
index 31cdd0d..ae046d4 100644
--- a/proxy/gnome/gproxyresolvergnome.c
+++ b/proxy/gnome/gproxyresolvergnome.c
@@ -390,9 +390,7 @@ update_settings (GProxyResolverGnome *resolver)
 static gboolean
 g_proxy_resolver_gnome_is_supported (GProxyResolver *object)
 {
-  GProxyResolverGnome *resolver = G_PROXY_RESOLVER_GNOME (object);
-
-  return resolver->proxy_settings != NULL;
+  return !g_strcmp0 (g_getenv ("DESKTOP_SESSION"), "gnome");
 }
 
 static gboolean