--- libgeos/geos/src/geom/LineSegment_old.cpp	2014-07-19 14:40:04.000000000 -0600
+++ libgeos/geos/src/geom/LineSegment.cpp	2014-07-19 14:39:46.000000000 -0600
@@ -34,6 +34,7 @@
 
 #include <sstream>
 #include <cmath>
+#include <algorithm>
 
 #ifndef GEOS_INLINE
 # include <geos/geom/LineSegment.inl>