[PATCH] Remove AM_PO_SUBDIRS from configure.ac

[Alan Modra]

On Thu, Jul 10, 2025 at 09:17:33AM +0200, Jan Beulich wrote:
> On 10.07.2025 03:34, Pietro Monteiro wrote:
> > Some configure.ac files use both AM_PO_SUBDIRS and
> > ZW_GNU_GETTEXT_SISTER_DIR macros.  In-tree gettext build support
> > requires ZW_GNU_GETTEXT_SISTER_DIR, which also indirectly AC_REQUIRE's
> > AM_PO_SUBDIRS, causing double expansion.
> 
> Yet the invocation of AM_GNU_GETTEXT() is conditional in
> ZW_GNU_GETTEXT_SISTER_DIR(). What about the other path there?

AC_REQUIRE doesn't care about conditionals.  The result of Pietro's
patch will be the same as swapping the order of AM_PO_SUBDIRS and
ZW_GNU_GETTEXT_SISTER_DIR invocations.  I favour doing that rather
than deleting AM_PO_SUBDIRS.

> 
> Not being overly familiar with autoconf, "double expansion" of what
> specifically? Causing what kind of problem?

No problem, just duplicate code in configure.

> Jan
> 
> >  Remove the direct uses of
> > AM_PO_SUBDIRS to get rid of the duplicated code.

-- 
Alan Modra