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/z2.c

@@ -42,6 +42,7 @@ static char *id = "$Id: z2.c,v 1.3 1999/05/31 23:35:47 sybalsky Exp $ Copyright
 #include "conspage.h"
 #include "stack.h"
 #include "gc.h"
+#include "arith.h"
 #include "my.h"
 
 struct cadr_cell cadr(LispPTR cell_adr);