+diff -dur -x '*~' Mesa-vulkan-s20160220.orig/src/mesa/Makefile.am Mesa-vulkan-s20160220/src/mesa/Makefile.am
+--- Mesa-vulkan-s20160220.orig/src/mesa/Makefile.am 2016-02-19 17:05:35.000000000 +0100
++++ Mesa-vulkan-s20160220/src/mesa/Makefile.am 2016-02-20 16:06:38.690371982 +0100
+@@ -36,28 +36,6 @@
+ gldir = $(includedir)/GL
+ gl_HEADERS = $(top_srcdir)/include/GL/*.h
+
+-.PHONY: main/git_sha1.h.tmp
+-main/git_sha1.h.tmp:
+- @# Don't assume that $(top_srcdir)/.git is a directory. It may be
+- @# a gitlink file if $(top_srcdir) is a submodule checkout or a linked
+- @# worktree.
+- @touch main/git_sha1.h.tmp
+- @if test -e $(top_srcdir)/.git; then \
+- if which git > /dev/null; then \
+- git --git-dir=$(top_srcdir)/.git log -n 1 --oneline | \
+- sed 's/^\([^ ]*\) .*/#define MESA_GIT_SHA1 "git-\1"/' \
+- > main/git_sha1.h.tmp ; \
+- fi \
+- fi
+-
+-main/git_sha1.h: main/git_sha1.h.tmp
+- @echo "updating main/git_sha1.h"
+- @if ! cmp -s main/git_sha1.h.tmp main/git_sha1.h; then \
+- mv main/git_sha1.h.tmp main/git_sha1.h ;\
+- else \
+- rm main/git_sha1.h.tmp ;\
+- fi
+-
+ include Makefile.sources
+
+ EXTRA_DIST = \