Re: AC_C_BIGENDIAN answers "universal" on powerpc-aix

[Ralf Wildenhues]

* Eric Blake wrote on Fri, Aug 15, 2008 at 06:34:06AM CEST:
> According to Peter O'Gorman on 8/14/2008 3:52 PM:
> > +#if defined AC_APPLE_UNIVERSAL_BUILD
> 
> This name means that since AC_[A-Z]* is now expected to appear in
> configure, it should trip the m4_pattern_forbid of the autoconf m4
> namespace as a potentially unexpanded macro (I wonder why it didn't seem
> to trip in your testing?).

AC_DEFINEd names are m4_pattern_allow'ed through
AC_DEFINE_TRACE_LITERAL.

> Why not just strip the AC_ prefix, and go with
> the name APPLE_UNIVERSAL_BUILD?

Because it is an Autoconf internal detail, not a user interface.

Cheers,
Ralf