init more types on startup

create VipsImage and VipsRegion types on vips_init()

libvips/iofuncs/image.c

@@ -1073,6 +1073,8 @@ vips_image_class_init( VipsImageClass *class )
 	VipsObjectClass *vobject_class = VIPS_OBJECT_CLASS( class );
 	GParamSpec *pspec;
 
+	VIPS_DEBUG_MSG( "vips_image_class_init:\n" );
+
 	/* Pass in a nonsense name for argv0 ... this init world is only here
 	 * for old programs which are missing an vips_init() call. We must
 	 * have threads set up before we can process.

libvips/iofuncs/init.c

@@ -131,6 +131,10 @@ vips_get_argv0( void )
  *     </para>
  *   </listitem>
  *   <listitem> 
+ *     <para>creates the main vips types, including VipsImage and friends
+ *     </para>
+ *   </listitem>
+ *   <listitem> 
  *     <para>loads any plugins from $libdir/vips-x.y, where x and y are the
  *     major and minor version numbers for this VIPS.
  *     </para>
@@ -213,6 +217,8 @@ vips_init( const char *argv0 )
 
 	/* Register base vips types.
 	 */
+	(void) vips_image_get_type();
+	(void) vips_region_get_type();
 	vips__meta_init_types();
 	vips__interpolate_init();
 	im__format_init();