diff -r 220cde0fa2d9 -r 292c64cb2a75 src/basics.h
--- a/src/basics.h	Sat Jan 28 17:20:16 2017 +0200
+++ b/src/basics.h	Sat Jan 28 17:23:04 2017 +0200
@@ -125,7 +125,6 @@
 };
 
 extern const Vertex Origin;
-extern const Matrix IdentityMatrix;
 
 static const double pi = 3.14159265358979323846;