ubiquity: add workaround for mesa upgrade

helpers/DATA/ubiquity/patch_changes/006-force_environment_software_gl_for_ubiquity.patch

@@ -0,0 +1,14 @@
+diff --git a/bin/ubiquity b/bin/ubiquity
+index e3f07a0c..5254f1f7 100755
+--- a/bin/ubiquity
++++ b/bin/ubiquity
+@@ -22,6 +22,9 @@ import locale
+ from operator import attrgetter
+ import optparse
+ import os
++# Force software GL for the installer; overridable by environment. (TPH!1804)
++if 'LIBGL_ALWAYS_SOFTWARE' not in os.environ:
++    os.environ['LIBGL_ALWAYS_SOFTWARE'] = '1'
+ import pwd
+ import shutil
+ import subprocess

helpers/make-ubiquity

@@ -19,7 +19,7 @@
 #    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 #
 
-VERSION=41
+VERSION=42
 
 . ./config