[gegl] gegl: enable multiple thread by default

[Øyvind Kolås <ok src gnome org>]

commit 03f83003760d1b19de06e08b80143bc70156f45e
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Nov 16 00:13:12 2017 +0100

    gegl: enable multiple thread by default

 gegl/gegl-config.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gegl/gegl-config.c b/gegl/gegl-config.c
index ba096d7..c25ee64 100644
--- a/gegl/gegl-config.c
+++ b/gegl/gegl-config.c
@@ -48,7 +48,7 @@ enum
   PROP_APPLICATION_LICENSE
 };
 
-gint _gegl_threads = 1; 
+gint _gegl_threads = 1;
 
 static void
 gegl_config_get_property (GObject    *gobject,
@@ -225,11 +225,13 @@ gegl_config_class_init (GeglConfigClass *klass)
                                                         G_PARAM_READWRITE |
                                                         G_PARAM_CONSTRUCT));
 
+  _gegl_threads = g_get_num_processors ();
   g_object_class_install_property (gobject_class, PROP_THREADS,
                                    g_param_spec_int ("threads",
                                                      "Number of threads",
                                                      "Number of concurrent evaluation threads",
-                                                     0, GEGL_MAX_THREADS, 1,
+                                                     0, GEGL_MAX_THREADS,
+                                                     _gegl_threads,
                                                      G_PARAM_READWRITE |
                                                      G_PARAM_CONSTRUCT));