package/x11r7/xdriver_xf86-video-savage: disable DRI support when not available

Fixes
http://autobuild.buildroot.net/results/ecd/ecdb6977d282c276cbdf1f3dd0ccfaddff1d1ac5/

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/x11r7/xdriver_xf86-video-savage/xdriver_xf86-video-savage.mk

@@ -12,4 +12,8 @@ XDRIVER_XF86_VIDEO_SAVAGE_LICENSE_FILES = COPYING
 XDRIVER_XF86_VIDEO_SAVAGE_AUTORECONF = YES
 XDRIVER_XF86_VIDEO_SAVAGE_DEPENDENCIES = xserver_xorg-server libdrm xproto_fontsproto xproto_randrproto xproto_renderproto xproto_videoproto xproto_xextproto xproto_xf86driproto xproto_xproto
 
+ifeq ($(BR2_PACKAGE_MESA3D_DRI_DRIVER),)
+XDRIVER_XF86_VIDEO_SAVAGE_CONF_OPTS = --disable-dri
+endif
+
 $(eval $(autotools-package))