[gnome-builder] run-mananger: use proper pointer to elements

[Christian Hergert <chergert src gnome org>]

commit 9068095695ffb369b7d4fd2cbddc78e35c39ac1c
Author: Christian Hergert <chergert redhat com>
Date:   Sun Nov 19 20:56:00 2017 -0800

    run-mananger: use proper pointer to elements
    
    We get a pointer to the pointer, so we need to dereference that
    before passing it to compare.

 src/libide/runner/ide-run-manager.c |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)
---
diff --git a/src/libide/runner/ide-run-manager.c b/src/libide/runner/ide-run-manager.c
index 9f04b63..3b2959a 100644
--- a/src/libide/runner/ide-run-manager.c
+++ b/src/libide/runner/ide-run-manager.c
@@ -836,6 +836,16 @@ ide_run_manager_set_build_target (IdeRunManager  *self,
     g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_BUILD_TARGET]);
 }
 
+static gint
+compare_targets (gconstpointer a,
+                 gconstpointer b)
+{
+  const IdeBuildTarget * const *a_target = a;
+  const IdeBuildTarget * const *b_target = b;
+
+  return ide_build_target_compare (*a_target, *b_target);
+}
+
 static void
 collect_extensions (PeasExtensionSet *set,
                     PeasPluginInfo   *plugin_info,
@@ -903,7 +913,7 @@ ide_run_manager_provider_get_targets_cb (GObject      *object,
       IDE_EXIT;
     }
 
-  g_ptr_array_sort (state->results, (GCompareFunc)ide_build_target_compare);
+  g_ptr_array_sort (state->results, compare_targets);
 
   g_task_return_pointer (task,
                          g_object_ref (g_ptr_array_index (state->results, 0)),