Macro: ac_prompt_user_no_define

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# ac_prompt_user_no_define

## Synopsis

`AC_PROMPT_USER_NO_DEFINE(VARIABLENAME,QUESTION,[DEFAULT])`

## Version

1.1.1.1 (2001/07/26) Miscellaneous @ ac-archive-0.5.32

## Author

Wes Hardaker <wjhardaker@ucdavis.edu>

## Description

Asks a QUESTION and puts the results in VARIABLENAME with an optional DEFAULT value if the user merely hits return.

## M4 Source Code

    AC_DEFUN([AC_PROMPT_USER_NO_DEFINE],
    dnl changequote(<<, >>) dnl
    dnl <<
    [
    if test "x$defaults" = "xno"; then
    echo $ac_n "$2 ($3): $ac_c"
    read tmpinput
    if test "$tmpinput" = "" -a "$3" != ""; then
      tmpinput="$3"
    fi
    eval $1=\"$tmpinput\"
    else
    tmpinput="$3"
    eval $1=\"$tmpinput\"
    fi
    ]
    dnl >>
    dnl changequote([, ])
    ) dnl done AC_PROMPT_USER