[glib] Add G_SPAWN_DEFAULT to GSpawnFlags

[Matthias Clasen <matthiasc src gnome org>]

commit 37849277645d05c1e1cd9c5e585d7231f75ffa2f
Author: Robert Ancell <robert ancell canonical com>
Date:   Fri May 31 11:07:55 2013 +1200

    Add G_SPAWN_DEFAULT to GSpawnFlags
    
    This is convenient for language bindings, and also makes
    invocations of g_spawn functions in C more readable.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=701318

 glib/gspawn.h                    |    2 ++
 glib/tests/spawn-multithreaded.c |    2 +-
 2 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/glib/gspawn.h b/glib/gspawn.h
index 24bd521..5b5853a 100644
--- a/glib/gspawn.h
+++ b/glib/gspawn.h
@@ -144,6 +144,7 @@ typedef void (* GSpawnChildSetupFunc) (gpointer user_data);
 
 /**
  * GSpawnFlags:
+ * @G_SPAWN_DEFAULT: no flags, default behaviour
  * @G_SPAWN_LEAVE_DESCRIPTORS_OPEN: the parent's open file descriptors will be
  *   inherited by the child; otherwise all descriptors except stdin/stdout/stderr
  *   will be closed before calling exec() in the child.
@@ -171,6 +172,7 @@ typedef void (* GSpawnChildSetupFunc) (gpointer user_data);
  */
 typedef enum
 {
+  G_SPAWN_DEFAULT                = 0,
   G_SPAWN_LEAVE_DESCRIPTORS_OPEN = 1 << 0,
   G_SPAWN_DO_NOT_REAP_CHILD      = 1 << 1,
   /* look for argv[0] in the path i.e. use execvp() */
diff --git a/glib/tests/spawn-multithreaded.c b/glib/tests/spawn-multithreaded.c
index 781ae4a..99f99b4 100644
--- a/glib/tests/spawn-multithreaded.c
+++ b/glib/tests/spawn-multithreaded.c
@@ -72,7 +72,7 @@ test_spawn_sync_multithreaded_instance (gpointer data)
   g_ptr_array_add (argv, arg);
   g_ptr_array_add (argv, NULL);
 
-  g_spawn_sync (NULL, (char**)argv->pdata, NULL, 0, NULL, NULL, &stdout_str, NULL, &estatus, &error);
+  g_spawn_sync (NULL, (char**)argv->pdata, NULL, G_SPAWN_DEFAULT, NULL, NULL, &stdout_str, NULL, &estatus, 
&error);
   g_assert_no_error (error);
   g_assert_cmpstr (arg, ==, stdout_str);
   g_free (arg);