--- foo/foo/foo/boost/archive/iterators/transform_width.hpp
+++ foo/foo/foo/boost/archive/iterators/transform_width.hpp
@@ -23,6 +23,8 @@
 // stream length is some common multiple of x and y.  E.G. Base64 6 bit
 // character and 8 bit bytes. Lowest common multiple is 24 => 4 6 bit characters
 // or 3 8 bit characters
+
+#include <algorithm>
 
 #include <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME & PTFO
 #include <boost/serialization/pfto.hpp>