Index: fact/tools/rootmacros/calscope.C
===================================================================
--- fact/tools/rootmacros/calscope.C	(revision 12255)
+++ fact/tools/rootmacros/calscope.C	(revision 12256)
@@ -6,4 +6,5 @@
 #include <cstdio>
 
+#define HAVE_ZLIB
 #include "fits.h"
 #include "TPKplotevent.c"