Re: [PATCH] Add subdir-objects to automake options

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On Mon, 2015-10-26 at 10:47 +0100, Christophe Fergeau wrote:
> Hey,
> 
> Is this still happening with latest git? I'm fairly sure I fixed
> these
> warnings a while ago, and that adding subdir-objects was not really
> needed.

Hmm, this actually happened when I attempted to rebuild a rhel6 package
on fedora 22. In other words, I was basically trying to run autoreconf
on a tarball release.. So I guess I'm not totally sure whether it's
necessary in git or not...



> 
> On Fri, Oct 23, 2015 at 02:59:32PM -0500, Jonathon Jongsma wrote:
> > Without this, newer versions of automake give a warning, and since
> > -Werror is set, this is treated as an error. This can result in
> > build
> > failures such as:
> > 
> > automake: warnings are treated as errors
> > common/Makefile.am:4: warning: source file
> > '$(srcdir)/generated_client_demarshallers.c' is in a subdirectory,
> > common/Makefile.am:4: but option 'subdir-objects' is disabled
> > automake: warning: possible forward-incompatibility.
> > automake: At least a source file is in a subdirectory, but the
> > 'subdir-objects'
> > automake: automake option hasn't been enabled.  For now, the
> > corresponding output
> > automake: object file(s) will be placed in the top-level directory.
> >   However,
> > automake: this behaviour will change in future Automake versions:
> > they will
> > automake: unconditionally cause object files to be placed in the
> > same subdirectory
> > automake: of the corresponding sources.
> > automake: You are advised to start using 'subdir-objects' option
> > throughout your
> > automake: project, to avoid future incompatibilities.
> > common/Makefile.am:4: warning: source file
> > '$(srcdir)/generated_client_demarshallers1.c' is in a subdirectory,
> > common/Makefile.am:4: but option 'subdir-objects' is disabled
> > common/Makefile.am:4: warning: source file
> > '$(srcdir)/generated_client_marshallers.c' is in a subdirectory,
> > common/Makefile.am:4: but option 'subdir-objects' is disabled
> > common/Makefile.am:4: warning: source file
> > '$(srcdir)/generated_client_marshallers1.c' is in a subdirectory,
> > common/Makefile.am:4: but option 'subdir-objects' is disabled
> > common/Makefile.am:11: warning: source file
> > '$(srcdir)/generated_server_demarshallers.c' is in a subdirectory,
> > common/Makefile.am:11: but option 'subdir-objects' is disabled
> > common/Makefile.am:11: warning: source file
> > '$(srcdir)/generated_server_marshallers.c' is in a subdirectory,
> > common/Makefile.am:11: but option 'subdir-objects' is disabled
> 
> This is no longer accurate, $(srcdir) was removed in
> http://cgit.freedesktop.org/spice/spice-common/commit/common/Makefile
> .am?id=7ea1cc54b1cdc105e086c154cc15b2541937c7b7
> 
> NACK until you provide more details about the exact issue.
> 
> Christophe
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