Index: insns.def
===================================================================
--- insns.def	(revision 22918)
+++ insns.def	(working copy)
@@ -113,7 +113,7 @@
 ()
 (VALUE val)
 {
-    int i;
+    unsigned long i;
     VALUE *dfp2 = GET_DFP();
     for (i = 0; i < level; i++) {
 	dfp2 = GET_PREV_DFP(dfp2);
@@ -134,7 +134,7 @@
 (VALUE val)
 ()
 {
-    int i;
+    unsigned long i;
     VALUE *dfp2 = GET_DFP();
     for (i = 0; i < level; i++) {
 	dfp2 = GET_PREV_DFP(dfp2);
@@ -424,7 +424,7 @@
 (VALUE val) // inc += 1 - cnt;
 {
     VALUE rb_reg_new_ary(VALUE ary, int options);
-    int i;
+    unsigned long i;
     const VALUE ary = rb_ary_tmp_new(cnt);
     for (i = 0; i < cnt; i++) {
         rb_ary_store(ary, cnt-i-1, TOPN(i));
@@ -652,7 +652,7 @@
 (...)
 (...) // inc += n;
 {
-    int i;
+    unsigned long i;
     VALUE *sp = STACK_ADDR_FROM_TOP(n);
     for (i = 0; i < n; i++) {
 	GET_SP()[i] = sp[i];