Chris Lamb <lamby@debian.org> reported in Debian that criu is not
building reproducible while working on the "reproducible builds" effort
[0].

 [0] https://wiki.debian.org/ReproducibleBuilds
 [1] https://bugs.debian.org/801211Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Acked-by: Andrew Vagin <avagin@odin.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>