casa-mp-base

https://github.com/synfig/synfig/issues/297

https://github.com/synfig/synfig/commit/a1232fa5834a109b470322061d1a4d7346c04f83

--- ETL/_boxblur.h.orig 2016-11-30 04:59:46.000000000 -0600

+++ ETL/_boxblur.h  2017-01-13 00:38:46.000000000 -0600

@@ -29,6 +29,8 @@

 /* === H E A D E R S ======================================================= */

+#include <algorithm>

+

 /* === M A C R O S ========================================================= */

 /* === T Y P E D E F S ===================================================== */