X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=universe.h;h=f87f112b19df77c50348cb0d13eb77dace74933e;hb=1772e738e79ad97347552ea29ee041440d9e60cb;hp=77980b8310fe7008b6e04ec2b6d4c1df48ad019e;hpb=a845456cf185afc67d4fdb3aee7fed27c488b4fe;p=universe.git

diff --git a/universe.h b/universe.h
index 77980b8..f87f112 100644
--- a/universe.h
+++ b/universe.h
@@ -8,16 +8,19 @@
 #include <iostream>
 #include <cmath>
 
+#include "misc.h"
+#include "polygon.h"
+
+#ifdef X11_SUPPORT
+#include "simple_window.h"
+#endif
+
 #ifdef CAIRO_SUPPORT
 #include <cairo.h>
 #endif
 
 using namespace std;
 
-#include "misc.h"
-#include "simple_window.h"
-#include "polygon.h"
-
 class Universe {
   scalar_t _xmax, _ymax;
 public:
@@ -45,7 +48,10 @@ public:
   Polygon *pick_polygon(scalar_t x, scalar_t y);
 
   void print_xfig(XFigTracer *tracer);
+
+#ifdef X11_SUPPORT
   void draw(SimpleWindow *window);
+#endif
 
 #ifdef CAIRO_SUPPORT
   void draw(cairo_t *context_resource);