fix for -fno-common

Index: gcc/config/avr32/avr32.c
--- gcc/config/avr32/avr32.c.orig
+++ gcc/config/avr32/avr32.c
@@ -207,10 +207,6 @@ static const struct arch_type_s avr32_arch_types[] = {
   {NULL, 0, 0, 0, NULL}
 };
 
-/* Default arch name */
-const char *avr32_arch_name = "none";
-const char *avr32_part_name = "none";
-
 const struct part_type_s *avr32_part;
 const struct arch_type_s *avr32_arch;
 
@@ -2190,7 +2186,7 @@ static bool has_attribute_p (tree decl, const char *na
     {
       return (lookup_attribute (name, DECL_ATTRIBUTES(decl)) != NULL_TREE);
     }
-  return NULL_TREE;    
+  return FALSE;
 }
 
 
@@ -7276,7 +7272,7 @@ get_next_insn_cond (rtx cur_insn)
 /* Check if the next insn is a conditional insn that will emit a compare
    for itself.
 */
-rtx
+bool
 next_insn_emits_cmp (rtx cur_insn)
 {
   rtx next_insn = next_nonnote_insn (cur_insn);
