Re: automake warnings about "option 'subdir-objects' is disabled"

[Dan Williams <dcbw redhat com>]

On Thu, 2015-01-22 at 16:03 +0100, Michael Biebl wrote:
> Hi,
>
> during build, I get the following warning:
>
> > automake: warning: possible forward-incompatibility.
> > automake: At least a source file is in a subdirectory, but the 'subdir-objects'
> > automake: automake option hasn't been enabled.  For now, the corresponding output
> > automake: object file(s) will be placed in the top-level directory.  However,
> > automake: this behaviour will change in future Automake versions: they will
> > automake: unconditionally cause object files to be placed in the same subdirectory
> > automake: of the corresponding sources.
> > automake: You are advised to start using 'subdir-objects' option throughout your
> > automake: project, to avoid future incompatibilities.
> > clients/cli/Makefile.am:49: warning: source file '$(srcdir)/../common/nm-polkit-listener.c' is in a 
> > subdirectory,
> > clients/cli/Makefile.am:49: but option 'subdir-objects' is disabled
> > clients/tui/Makefile.am:35: warning: source file '$(srcdir)/../common/nm-secret-agent-simple.c' is in a 
> > subdirectory,
> ...

I get that too with subdir-objects and automake 1.13.4.  Maybe it's
related to http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13928 ?  If so,
then we can't use subdir-objects until automake 1.16...

Dan