Boolean uniforms are now updatable by properties

[simgear.git] / simgear / math / SGIntersect.hxx

diff --git a/simgear/math/SGIntersect.hxx b/simgear/math/SGIntersect.hxx
index 24741f6409bd78dcfeb603525aab6cbd0a474592..0fd2596bea109f7ef27a87975752eb9d37f5298c 100644 (file)
--- a/simgear/math/SGIntersect.hxx
+++ b/simgear/math/SGIntersect.hxx
@@ -18,6 +18,8 @@
 #ifndef SGIntersect_HXX
 #define SGIntersect_HXX
 
+#include <algorithm>
+
 template<typename T>
 inline bool
 intersects(const SGSphere<T>& s1, const SGSphere<T>& s2)