diff --git a/vars/diffutils.vars b/vars/diffutils.vars
new file mode 100644
index 0000000..d636ed5
--- /dev/null
+++ b/vars/diffutils.vars
@@ -0,0 +1,9 @@
+#
+# set -o errexit -o noglob are assumed.
+#
+
+: ${PKG_DIFFUTILS_CONFIG_CACHE_EXTRA:="
+gl_cv_func_gettimeofday_clobber=no
+gl_cv_func_tzset_clobber=no"};
+
+# vim:filetype=sh