Grab changes from upstream gnulib CVS.  We want to make sure 
that when we deal with pointers, we never try and store a pointer 
in a type that is smaller than the size of a pointer.

http://bugs.gentoo.org/show_bug.cgi?id=87873

--- lib/regex.c
+++ lib/regex.c
@@ -1023,2 +1023,3 @@
 
+typedef unsigned long int active_reg_t;
 #define PUSH_FAILURE_POINT(pattern_place, string_place, failure_code)	\
@@ -1028,3 +1029,3 @@
        of 0 + -1 isn't done as unsigned.  */				\
-    int this_reg;							\
+    active_reg_t this_reg;							\
     									\
@@ -1135,3 +1136,3 @@
   DEBUG_STATEMENT (fail_stack_elt_t failure_id;)			\
-  int this_reg;								\
+  active_reg_t this_reg;								\
   const unsigned char *string_temp;					\
@@ -1166,6 +1167,6 @@
   /* Restore register info.  */						\
-  high_reg = (unsigned) POP_FAILURE_ITEM ();				\
+  high_reg = (active_reg_t) POP_FAILURE_ITEM ();				\
   DEBUG_PRINT2 ("  Popping high active reg: %d\n", high_reg);		\
 									\
-  low_reg = (unsigned) POP_FAILURE_ITEM ();				\
+  low_reg = (active_reg_t) POP_FAILURE_ITEM ();				\
   DEBUG_PRINT2 ("  Popping  low active reg: %d\n", low_reg);		\
@@ -3406,4 +3407,4 @@
   /* The currently active registers.  */
-  unsigned lowest_active_reg = NO_LOWEST_ACTIVE_REG;
-  unsigned highest_active_reg = NO_HIGHEST_ACTIVE_REG;
+  active_reg_t lowest_active_reg = NO_LOWEST_ACTIVE_REG;
+  active_reg_t highest_active_reg = NO_HIGHEST_ACTIVE_REG;
 
@@ -3992,3 +3993,3 @@
                           /* xx why this test?  */
-                          if ((int) old_regend[r] >= (int) regstart[r])
+                          if (old_regend[r] >= regstart[r])
                             regend[r] = old_regend[r];