On Aug 3, 2000, Akim Demaille <[EMAIL PROTECTED]> wrote:
> | In Amanda, we used to have an AC_MSG_WARN whose text contained `#'.
> | It worked fine with autoconf 2.13. With CVS autoconf, we get:
> Quote your literal argument twice.
Thanks, but I already knew how to fix it in the configure script. My
problem was with the behavioral change, as the subject was supposed to
indicate. We've broken an existing configure.in that was (arguably)
correct. (In fact, there were some quoting problems, but those were
indeed bugs in the configure.in script itself.)
> Quoting once means you want all the macros which will be call to keep
> the argument unevaluated until you hit the bottom, and *then* it's
> expanded.
What I didn't understand is why AC_FD_MSG used to be expanded in the
past, and it no longer was. But I've just noticed that AC_FD_MSG
didn't exist in autoconf 2.13.
Anyway, I see two ways to fix this problem in the current autoconf.
(i) We may add `\ LF' before the redirection, so that the redirection
would be in a different line, unaffected by `#'.
(ii) We might be able to detect unquoted `#'s in _AC_SH_QUOTE and
then enable some backward-compatible behavior by quoting `#' or some
such.
I seem to prefer the latter, but the former is easier :-)
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist *Please* write to mailing lists, not to me
