diff -Nur telepathy-haze-0.8.0.old/configure.ac telepathy-haze-0.8.0/configure.ac
--- telepathy-haze-0.8.0.old/configure.ac	2013-11-22 16:29:57.589038402 +0300
+++ telepathy-haze-0.8.0/configure.ac	2013-11-22 19:21:42.317009774 +0300
@@ -76,6 +76,7 @@
 PKG_CHECK_MODULES(PURPLE,[purple >= 2.7])
 PKG_CHECK_MODULES(TP_GLIB,[telepathy-glib >= 0.15.1])
 PKG_CHECK_MODULES(GLIB,[glib-2.0 >= 2.22, gobject-2.0, gio-2.0])
+PKG_CHECK_MODULES(GIO,[gio-2.0])
 PKG_CHECK_MODULES(DBUS_GLIB,[dbus-glib-1 >= 0.73])
 
 dnl MIN_REQUIRED must stay to 2.30 because of GValueArray
diff -Nur telepathy-haze-0.8.0.old/src/main.c telepathy-haze-0.8.0/src/main.c
--- telepathy-haze-0.8.0.old/src/main.c	2013-11-22 16:29:57.592038425 +0300
+++ telepathy-haze-0.8.0/src/main.c	2013-11-22 19:20:33.604477142 +0300
@@ -31,6 +31,8 @@
 #include <dbus/dbus.h>
 #include <glib.h>
 
+#include <gio/gio.h>
+
 #include <libpurple/account.h>
 #include <libpurple/core.h>
 #include <libpurple/blist.h>
@@ -175,6 +177,105 @@
 
 }
 
+
+static void
+copy_one_cert_dir (const gchar *source_root,
+                   GFile *target_dir)
+{
+    gchar *source_path;
+    GFile *source_dir;
+    GFileEnumerator *contents;
+    GFileInfo *child_info;
+    GError *error = NULL;
+
+    source_path = g_build_filename (source_root, "telepathy-haze",
+        "certificates", NULL);
+    source_dir = g_file_new_for_path (source_path);
+
+    contents = g_file_enumerate_children (source_dir,
+        G_FILE_ATTRIBUTE_STANDARD_NAME, G_FILE_QUERY_INFO_NONE, NULL, &error);
+
+    if (contents == NULL)
+    {
+        if (error->domain != G_IO_ERROR || error->code != G_IO_ERROR_NOT_FOUND)
+            DEBUG ("couldn't list %s (%s, %d, %s); skipping", source_path,
+                g_quark_to_string (error->domain), error->code, error->message);
+
+        g_error_free (error);
+        goto finally;
+    }
+
+    while ((child_info = g_file_enumerator_next_file (contents, NULL, &error)))
+    {
+        const gchar *child_name = g_file_info_get_name (child_info);
+        GFile *source_file = g_file_get_child (source_dir, child_name);
+        GFile *target_file = g_file_get_child (target_dir, child_name);
+        gboolean yay;
+
+        yay = g_file_copy (source_file, target_file, 0, NULL, NULL, NULL,
+            &error);
+
+        if (!yay)
+        {
+            DEBUG ("couldn't copy %s to %s: %s", g_file_get_basename
+                (source_file), g_file_get_basename (target_file),
+                error->message);
+            g_clear_error (&error);
+        }
+
+        g_object_unref (source_file);
+        g_object_unref (target_file);
+        g_object_unref (child_info);
+    }
+
+    g_object_unref (contents);
+
+finally:
+    g_object_unref (source_dir);
+    g_free (source_path);
+}
+
+
+/**
+ * seed_tls_peers:
+ *
+ * Adds known-trusted certificates from haze's data dirs to the temporary
+ * libpurple config directory.  Thus, people can work around haze falling down
+ * a well if libpurple wants to ask the user to accept or decline a cert.
+ */
+static void
+seed_tls_peers (void)
+{
+    const gchar * const *dirs = g_get_system_data_dirs ();
+    gchar *target_path;
+    GFile *target_dir;
+    int ret;
+
+    target_path = g_build_filename (user_dir, "certificates", "x509",
+        "tls_peers", NULL);
+    ret = g_mkdir_with_parents (target_path, 0755);
+    DEBUG ("%s", target_path);
+
+    if (ret != 0)
+    {
+        g_warning ("Couldn't mkdir -p %s: %s", target_path, g_strerror (errno));
+        goto finally;
+    }
+
+    target_dir = g_file_new_for_path (target_path);
+
+    copy_one_cert_dir (g_get_user_data_dir (), target_dir);
+
+    for (; *dirs != NULL; dirs++)
+        copy_one_cert_dir (*dirs, target_dir);
+
+    g_object_unref (target_dir);
+
+finally:
+    g_free (target_path);
+}
+
+
 static void
 init_libpurple (void)
 {
@@ -202,6 +303,8 @@
     purple_dbus_uninit ();
 #endif
 
+    seed_tls_peers ();
+
     purple_set_blist(purple_blist_new());
     purple_blist_load();
 
diff -Nur telepathy-haze-0.8.0.old/src/Makefile.am telepathy-haze-0.8.0/src/Makefile.am
--- telepathy-haze-0.8.0.old/src/Makefile.am	2013-11-22 16:29:57.591038418 +0300
+++ telepathy-haze-0.8.0/src/Makefile.am	2013-11-22 19:22:25.103341446 +0300
@@ -65,6 +65,7 @@
 	@PURPLE_CFLAGS@ \
 	@TP_GLIB_CFLAGS@ \
 	@DBUS_GLIB_CFLAGS@ \
-	@GLIB_CFLAGS@
+	@GLIB_CFLAGS@ \
+	@GIO_CFLAGS@
 
-AM_LDFLAGS = @PURPLE_LIBS@ @TP_GLIB_LIBS@ @DBUS_GLIB_LIBS@ @GLIB_LIBS@
+AM_LDFLAGS = @PURPLE_LIBS@ @TP_GLIB_LIBS@ @DBUS_GLIB_LIBS@ @GLIB_LIBS@ @GIO_LIBS@