Re: Fix gl_MULTIARCH to work around autoconf bug

[Bruno Haible]

Hi Eric,

Thank you for tackling this bug report so rapidly. I'm glad that you were able
to reduce the test case to a minimal one.

> I've tested that before this patch,
> gnulib-tool --create-testdir --dir=... vasnprintf-posix
> 
> references $APPLE_UNIVERSAL_BUILD prior to its definition, and after the 
> patch, 
> the same testcase did things in a correct order.

Yes, it would be good if you could apply the workaround, probably with a
comment such as:
  
AC_DEFUN([gl_MULTIARCH],
[
  dnl This AC_REQUIRE is not necessary in theory. It works around a bug in
  dnl autoconf <= 2.63: AC_REQUIRE invocations inside AC_REQUIREd macros are
  dnl being handled better than AC_REQUIRE invocations inside normally invoked
  dnl macros.
  AC_REQUIRE([gl_MULTIARCH_BODY])
])

Bruno