dnl CF_WITH_VALUE version: 3 updated: 1998/04/01 11:39:13
dnl -------------
dnl Wrapper for AC_ARG_WITH to ensure that if the user supplies a value, it is
dnl not simply defaulting to yes/no.  Empty strings are ok if the macro is
dnl invoked without a default value
dnl $1 = option name
dnl $2 = help-message
dnl $3 = variable to inherit/override
dnl $4 = default value, if any.
AC_DEFUN([CF_WITH_VALUE],
[CF_ARG_WITH($1,[$2],[$3],[$4])
 AC_DEFINE_UNQUOTED($3,"$withval")dnl
])dnl
