1999-09-22 Akim Demaille <akim@epita.fr>

1999-09-22  Akim Demaille  <akim@epita.fr>
        * install.texi: Give emore details on envvar handling.
        * acgeneral.m4 (AC_HELP_STRING): Add a third argument to tune the
        width of the first column.
        (AC_INIT_NOTICE): Initialize ac_arg_enable_help, ac_arg_with_help,
        and ac_arg_var_help.
        * acgeneral.m4 (AC_INIT_PARSE_ARGS): Remove the handling of
        --env-var=.  After debate, the solution chosen to specify envvars
        to configure is a` la make: ./configure VAR=VAL.
        (AC_INIT_PARSE_ARGS, --help): Output ac_arg_enable_help,
        ac_arg_with_help, and ac_arg_var_help.
        * acgeneral.m4 (AC_ARG_VAR): New macro, to register and document
        influent envvars.
        * acspecific.m4 (AC_PROG_CC): Document CFLAGS.
        This is mainly to test AC_ARG_VAR.  Var to document are to be
        defined.