Re: autoconf enhancement for Interix

[Ralf Wildenhues]

Hello Martin,

* Martin Koeppe wrote on Sun, Aug 26, 2007 at 05:55:12PM CEST:
> 
> to better support Interix aka MS Services for Unix[1], I would like to 
> suggest applying the attached diff. Interix requires, such as AIX,
> #define _ALL_SOURCE 1 to enable all functions in the system headers.
> To not have to change all the configure.ac files around, I suggest to 
> keep the name at AC_AIX.

Thanks for the patch, this supports it:
<http://support.microsoft.com/?scid=kb%3Ben-us%3B891755&x=17&y=16>.
It should have a NEWS entry and a manual update, too.  Could you run the
Autoconf test suite (make check) with it on Interix to see how it fares?
(I wonder whether the macro should keep the same name, get a new name
together with a backward compatibility AU_DEFUN of AC_AIX, or just be a
separate macro that also gets required by AC_USE_SYSTEM_EXTENSIONS.)

Thanks,
Ralf