--- newlib/libc/configure.orig	2007-04-30 10:23:34.000000000 +0900
+++ newlib/libc/configure	2007-04-30 10:24:07.000000000 +0900
@@ -1238,7 +1238,7 @@
       ac_cache_corrupted=: ;;
     ,);;
     *)
-      if test "x$ac_old_val" != "x$ac_new_val"; then
+      if test "x${ac_old_val%% }" != "x${ac_new_val%% }"; then
 	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
 echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
 	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5