--- editor/bw_window.C.orig	Mon May  8 16:15:00 1995
+++ editor/bw_window.C	Thu Feb  3 21:29:23 2000
@@ -24,6 +24,8 @@
 #include <assert.h>
 #include <stdlib.h>
 
+extern "C" int XShmGetEventBase(Display *);
+
 BwWindow::BwWindow(UI_Globals *parent,world_c x,world_c y,unsigned int height,
 		   unsigned int width, void (*cb)(void) )
 : YUV_Window(parent,x,y,height,width,this, ButtonPressMask |
@@ -143,7 +145,7 @@
 			  height,8,0);
       ximage->byte_order = MSBFirst;
       ximage->bitmap_bit_order = MSBFirst;
-      ximage->data = new byte[ximage->bytes_per_line*height];
+      ximage->data = (char *) new byte[ximage->bytes_per_line*height];
       assert(ximage->data!=NULL);
 #ifdef SH_MEM
     }
@@ -213,7 +215,7 @@
 {
   assert(Frame.width()==ximage->width);
   assert(Frame.height()==ximage->height);
-  DitherImage(Frame.lum_ptr(),ximage->data,ximage->height,ximage->width);
+  DitherImage(Frame.lum_ptr(),(unsigned char*)ximage->data,ximage->height,ximage->width);
   if(nicely)
     {
       XEvent Event;