patch: automake subdir-objects

[hdatma]

Problem:

[...]
configure.ac:44: installing './missing'
src/Makefile.am:3: warning: source file '$(top_srcdir)/openbsd-compat/fgetln.c' is in a subdirectory,
src/Makefile.am:3: but option 'subdir-objects' is disabled
automake-1.15: warning: possible forward-incompatibility.
automake-1.15: At least a source file is in a subdirectory, but the 'subdir-objects'
automake-1.15: automake option hasn't been enabled. For now, the corresponding output
automake-1.15: object file(s) will be placed in the top-level directory. However,
automake-1.15: this behaviour will change in future Automake versions: they will
automake-1.15: unconditionally cause object files to be placed in the same subdirectory
automake-1.15: of the corresponding sources.
automake-1.15: You are advised to start using 'subdir-objects' option throughout your
automake-1.15: project, to avoid future incompatibilities.
src/Makefile.am:3: warning: source file '$(top_srcdir)/openbsd-compat/res_hnok.c' is in a subdirectory,
src/Makefile.am:3: but option 'subdir-objects' is disabled
src/Makefile.am:3: warning: source file '$(top_srcdir)/openbsd-compat/strlcat.c' is in a subdirectory,
src/Makefile.am:3: but option 'subdir-objects' is disabled
src/Makefile.am:3: warning: source file '$(top_srcdir)/openbsd-compat/strlcpy.c' is in a subdirectory,
src/Makefile.am:3: but option 'subdir-objects' is disabled
src/Makefile.am:3: warning: source file '$(top_srcdir)/openbsd-compat/strsep.c' is in a subdirectory,
src/Makefile.am:3: but option 'subdir-objects' is disabled
src/Makefile.am:3: warning: source file '$(top_srcdir)/openbsd-compat/strtonum.c' is in a subdirectory,
src/Makefile.am:3: but option 'subdir-objects' is disabled
src/Makefile.am: installing './depcomp'
[...]

Patch:

perl -i.bak -ple 's|^AM_INIT_AUTOMAKE$|AM_INIT_AUTOMAKE([subdir-objects])|' configure.ac;

Result:

[...]
configure.ac:44: installing './missing'
src/Makefile.am: installing './depcomp'

• rm -Rf autom4te.cache
  [...]

Comments:
no comment

[ericfaurot]

This makes ./bootstrap happy, but it breaks the build...

[poolpOrg]

On Fri, Jan 22, 2016 at 07:19:15AM -0800, Eric Faurot wrote:

This makes ./bootstrap happy, but it breaks the build...

yes, it requires a bit of adapting the autoshit layer...

I've done it in the past, I can have a look at this later if you want ;-)

[edrozenberg]

I ran into these warnings and like the autopaste monkey I am was getting ready to use AM_INIT_AUTOMAKE([subdir-objects]) from the first Google article I found. Luckily this issue here tells me not to :).

[ericfaurot]

The build system has been completely reworked.
I don't think this ticket is relevant anymore.
I'll close it shortly if there is no objection.