This PR:
* switches back to google/zopfli as authoritative upstream
* works around the awkward build situation until it's resolved upstream
Pull-Request: https://github.com/gentoo/gentoo/pull/920
Gentoo-Bug: https://bugs.gentoo.org/547476
Reporter: Anthony Ryan <anthonyryan1@gmail.com>
Acked-by: Alex Yu <alex_y_xu@yahoo.ca>
Signed-off-by: Patrice Clement <monsieurp@gentoo.org>