If "my.h" is included "arith.h" is also required for N_ARITH_SWITCH macro definition.

modified:   src/draw.c
	modified:   src/eqf.c
	modified:   src/fp.c
	modified:   src/z2.c

src/draw.c

@@ -41,8 +41,6 @@ static char *id = "$Id: draw.c,v 1.2 1999/01/03 02:06:56 sybalsky Exp $ Copyrigh
 #include "bbtsub.h"
 #include "display.h"
 
-#include "my.h"
-
 #ifdef DISPLAYBUFFER
 extern struct pixrect *ColorDisplayPixrect, *DisplayRegionPixrect;
 #endif