package/directfb: change upstream site

The http://www.directfb.org/ has been down since 2015.
Use the Buildroot backup download site.

Fixes:
   - https://bugs.busybox.net/show_bug.cgi?id=13126

Signed-off-by: Andrei Gherghescu <andrei.gherghescu@protonmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 89ab2a5a3f4588891ab1e9e76feb8c3f69402d5c)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/directfb-examples/Config.in

@@ -4,6 +4,8 @@ config BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  The DirectFB-examples package contains a set of simple
 	  DirectFB applications that can be used to test and demonstrate
-	  various DirectFB features.
+	  various DirectFB features. As of 4 October 2015, DirectFB's
+	  website http://www.directfb.org/ is down. See alternative site
+	  listed below.
 
-	  http://directfb.org/downloads/Extras/README.DirectFB-examples
+	  http://elinux.org/DirectFB

package/directfb-examples/directfb-examples.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 DIRECTFB_EXAMPLES_VERSION = 1.7.0
-DIRECTFB_EXAMPLES_SITE = http://www.directfb.org/downloads/Extras
+DIRECTFB_EXAMPLES_SITE = http://sources.buildroot.net/directfb-examples
 DIRECTFB_EXAMPLES_SOURCE = DirectFB-examples-$(DIRECTFB_EXAMPLES_VERSION).tar.gz
 DIRECTFB_EXAMPLES_LICENSE = MIT
 DIRECTFB_EXAMPLES_LICENSE_FILES = COPYING

package/directfb/directfb.mk

@@ -6,7 +6,7 @@
 
 DIRECTFB_VERSION_MAJOR = 1.7
 DIRECTFB_VERSION = $(DIRECTFB_VERSION_MAJOR).7
-DIRECTFB_SITE = http://www.directfb.org/downloads/Core/DirectFB-$(DIRECTFB_VERSION_MAJOR)
+DIRECTFB_SITE = http://sources.buildroot.net/directfb
 DIRECTFB_SOURCE = DirectFB-$(DIRECTFB_VERSION).tar.gz
 DIRECTFB_LICENSE = LGPL-2.1+
 DIRECTFB_LICENSE_FILES = COPYING