ac_cache_corrupted=falsefor ac_var in `(set) 2>&1 |	       sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do  eval ac_old_set=\$ac_cv_env_${ac_var}_set  eval ac_new_set=\$ac_env_${ac_var}_set  eval ac_old_val="\$ac_cv_env_${ac_var}_value"  eval ac_new_val="\$ac_env_${ac_var}_value"  case $ac_old_set,$ac_new_set in    set,)      { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}      ac_cache_corrupted=: ;;    ,set)      { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}      ac_cache_corrupted=: ;;    ,);;    *)      if test "x$ac_old_val" != "x$ac_new_val"; then	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5echo "$as_me:   former value:  $ac_old_val" >&2;}	{ echo "$as_me:$LINENO:   current value: $ac_new_val" >&5echo "$as_me:   current value: $ac_new_val" >&2;}	ac_cache_corrupted=:      fi;;  esac  # Pass precious variables to config.status.  if test "$ac_new_set" = set; then    case $ac_new_val in    *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;    *) ac_arg=$ac_var=$ac_new_val ;;    esac    case " $ac_configure_args " in      *" '$ac_arg' "*) ;; # Avoid dups.  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then  ac_cv_prog_CC="$CC" # Let the user override the test.else  ac_prog_rejected=noas_save_IFS=$IFS; IFS=$PATH_SEPARATORfor as_dir in $PATHdo  IFS=$as_save_IFS  test -z "$as_dir" && as_dir=.  for ac_exec_ext in '' $ac_executable_extensions; do  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then