Re: Supressing output from AC_CHECK_DECL

[Noah Misch]

On Tue, May 08, 2007 at 02:46:53PM +0200, address@hidden wrote:
> When I use AC_CHECK_DECL, how can I prevent it from outputting to the console 
> for a specific message only? I don't want to supress all messages, only one 
> specific message (and replace it with my own, more complex reusable macro).

I would write your test in terms of the lower-level AC_COMPILE_IFELSE; a check
functionally similar to AC_CHECK_DECL looks like this:

AC_COMPILE_IFELSE([AC_LANG_PROGRAM([INCLUDES],
[#ifndef SYMBOL
  (void) SYMBOL;
#endif
])], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])

> In the end, I've done:
> pushdef([AS_MESSAGE_FD], [/dev/null])
> popdef([AS_MESSAGE_FD])

This is a decent approach, too.