--- form_wrap.c	2010-06-28 11:30:02.000000000 -0500
+++ ../form_wrap.new	2010-06-28 11:29:49.000000000 -0500
@@ -392,7 +392,7 @@
  */
 static VALUE rbncurs_m_new_form(VALUE dummy, VALUE rb_field_array)
 {
-  long n = RARRAY(rb_field_array)->len;
+  long n = RARRAY_LEN(rb_field_array);
   /* Will ncurses free this array? If not, must do it after calling free_form(). */
   FIELD** fields = ALLOC_N(FIELD*, (n+1));
   long i;  
@@ -616,7 +616,7 @@
 		rb_raise(rb_eArgError, "TYPE_ENUM requires three additional arguments");
 	 }
     else {
-		int n = RARRAY(arg3)->len;
+		int n = RARRAY_LEN(arg3);
 		/*  Will ncurses free this array of strings in free_field()? */
 		char** list = ALLOC_N(char*, n+1);
 		int i;
@@ -775,7 +775,7 @@
  * form_field
  */
 static VALUE rbncurs_c_set_form_fields(VALUE rb_form, VALUE rb_field_array) {
-  long n = RARRAY(rb_field_array)->len;
+  long n = RARRAY_LEN(rb_field_array);
   /*  If ncurses does not free memory used by the previous array of strings, */
   /*  we will have to do it now. */
   FIELD** fields = ALLOC_N(FIELD*, (n+1));
@@ -1123,7 +1123,7 @@
 	 VALUE argc = rb_funcall(proc, rb_intern("arity"),0);
 	 VALUE args = get_proc(field, FIELDTYPE_ARGS);
 	 if (args != Qnil) {		
-		if (NUM2INT(argc)-1 != RARRAY(args)->len) {	
+		if (NUM2INT(argc)-1 != RARRAY(args)) {	
 		  char msg[500];
 		  snprintf(msg, 500, "The validation functions for this field type need %d additional arguments.",NUM2INT(argc)-1);
 		  msg[499]=0;

.