Ticket #52090: patch-macosx-tkMacOSXXStubs_non-Retina.diff

macosx/tkMacOSXXStubs.c

@@ -890 +890 @@
     int         bitmap_pad = 0;
     int         bytes_per_row = 4*width;
     int                size;
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
     MacDrawable *macDraw = (MacDrawable *) d;
     NSWindow *win = TkMacOSXDrawableWindow(d);
     /* This code assumes that backing scale factors are integers.  Currently
      * Retina displays use a scale factor of 2.0 and normal displays use 1.0.
      * We do not support any other values here.
      */
+#endif
     int scalefactor = 1;
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
     if (win && [win respondsToSelector:@selector(backingScaleFactor)]) { 
         scalefactor = ([win backingScaleFactor] == 2.0) ? 2 : 1;
     }
+#endif
     int scaled_height = height * scalefactor;
     int scaled_width = width * scalefactor;
-
     if (format == ZPixmap) {
         if (width == 0 || height == 0) {
             /* This happens all the time.