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then echo $ECHO_N "(cached) $ECHO_C" >&6 else case $M4 in [\\/]* | ?:[\\/]*) ac_cv_path_M4="$M4" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$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_path_M4="$as_dir/$ac_word$ac_exec_ext" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done ;; esac fi M4=$ac_cv_path_M4 if test -n "$M4"; then echo "$as_me:$LINENO: result: $M4" >&5 echo "${ECHO_T}$M4" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi test -n "$M4" && break done test -n "$M4" || M4="m4" echo "$as_me:$LINENO: checking whether m4 supports frozen files" >&5 echo $ECHO_N "checking whether m4 supports frozen files... $ECHO_C" >&6 if test "${ac_cv_prog_gnu_m4+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_cv_prog_gnu_m4=no if test x"$M4" != x; 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