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then  echo $ECHO_N "(cached) $ECHO_C" >&6else  if test -n "$CC"; then  ac_cv_prog_CC="$CC" # Let the user override the test.elseas_save_IFS=$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    ac_cv_prog_CC="${ac_tool_prefix}cc"    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5    break 2  fidonedonefifiCC=$ac_cv_prog_CCif test -n "$CC"; then  echo "$as_me:$LINENO: result: $CC" >&5echo "${ECHO_T}$CC" >&6else  echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fifiif test -z "$ac_cv_prog_CC"; then  ac_ct_CC=$CC  # Extract the first word of "cc", so it can be a program name with args.set dummy cc; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_ac_ct_CC+set}" = set; then  echo $ECHO_N "(cached) $ECHO_C" >&6else  if test -n "$ac_ct_CC"; then  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.elseas_save_IFS=$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    ac_cv_prog_ac_ct_CC="cc"    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5    break 2  fidonedonefifiac_ct_CC=$ac_cv_prog_ac_ct_CCif test -n "$ac_ct_CC"; then  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5echo "${ECHO_T}$ac_ct_CC" >&6else  echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fi  CC=$ac_ct_CCelse  CC="$ac_cv_prog_CC"fifiif test -z "$CC"; then  # Extract the first word of "cc", so it can be a program name with args.set dummy cc; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_CC+set}" = set; then  echo $ECHO_N "(cached) $ECHO_C" >&6else  if test -n "$CC"; then  ac_cv_prog_CC="$CC" # Let the user override the test.else  ac_prog_rejected=noas_save_IFS=$IFS; 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then  if test -n "$ac_tool_prefix"; then  for ac_prog in cl  do    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.set dummy $ac_tool_prefix$ac_prog; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_CC+set}" = set; then  echo $ECHO_N "(cached) $ECHO_C" >&6else  if test -n "$CC"; then  ac_cv_prog_CC="$CC" # Let the user override the test.elseas_save_IFS=$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    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5    break 2  fidonedonefifiCC=$ac_cv_prog_CCif test -n "$CC"; then  echo "$as_me:$LINENO: result: $CC" >&5