bug#7819: automake does not really automatically distribute all the files it's advertised to.

[Stefano Lattarini]

References:
  <http://lists.gnu.org/archive/html/automake-patches/2011-01/msg00181.html>
  <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7819>

On Saturday 15 January 2011, Stefano Lattarini wrote:
> 
> On Monday 10 January 2011, Ralf Wildenhues wrote:
> > Hi Stefano,
> > 
> > * Stefano Lattarini wrote on Mon, Jan 10, 2011 at 08:50:13PM CET:
> > >   Files which are automatically distributed, if found:
> > >     ABOUT-GNU           README              config.rpath        
> > > ltcf-gcj.sh
> > >     ABOUT-NLS           THANKS              config.sub          ltconfig
> > >     AUTHORS             TODO                configure           ltmain.sh
> > >     BACKLOG             acconfig.h          configure.ac        mdate-sh
> > [...]
> > >   ...
> > > 
> > > But the above is not always correct, as some of these files are 
> > > distributed
> > > *only* if other conditions are met.  For example, acconfig.h and 
> > > aclocal.m4
> > > are distributed only if they really exists at automake runtime (having 
> > > them
> > > as targets in Makefile.am won't work), config.h.bot and config.h.top are
> > > distributed only if the AC_CONFIG_HEADERS macro is used, and stamp-vti is
> > > distributed only if info_TEXINFOS and version.texi are used.
> > > 
> > > So, either the automake script or the automake help screen should be
> > > adjusted.
> > > 
> > > IMHO the current behaviour of automake is good enough, so I think we
> > > should adjust the automake help screen to read something like:
> > 
> > Agreed.  With many of the names, I have been wondering though whether we
> > should distribute them at all in arbitrary directories.  For example,
> > most scripts don't make that much sense outside of the toplevel or the
> > build-aux directories.
> > 
> > Then again, changing the current behavior here is quite likely to break
> > some existing package setups, and even silently and only upon 'make
> > dist' (so it might never show up for the developer), so that I'm not
> > inclined to change this lightly.
> > 
> > Documenting the existing behavior better sounds like a good idea to me.
> > 
> > Thanks for the report,
> > Ralf
> >
> 
> The attached two-patch series should fix the bug, by making it clear
> in the documentation and in the help screen that certain files are
> automatically distributed only under certain conditions or in certain
> situations (without fully specifying which conditions or situations,
> as that would be too detailed IMHO and make suboptimal behaviour
> more difficult to be changed in future).
> 
> OK for maint?
> 
> Regards,
>    Stefano
> 
> -*-*-
> 
> refactor: split 'usage' subroutine in automake
> 
> This change is related to automake bug#7819.
> 
> * automake.in (print_autodist_files): New subroutine,
> extracted from ...
> (usage): ... this, which now uses it.
> * tests/autodist-no-duplicate.test: New test.
> * tests/Makefile.am (TESTS): Update.
> ---
>  ChangeLog                        |   10 ++++
>  automake.in                      |   89 
> +++++++++++++++++++-------------------
>  tests/Makefile.am                |    1 +
>  tests/Makefile.in                |    1 +
>  tests/autodist-no-duplicate.test |   40 +++++++++++++++++
>  5 files changed, 97 insertions(+), 44 deletions(-)
>  create mode 100755 tests/autodist-no-duplicate.test
> 
> -*-*-
> 
> help: improve text about automatically-distributed files
> 
> This change fixes automake bug#7819.
> 
> * automake.in (usage): Distinguish between files that are always
> automatically distributed when found, and those which are only
> "under certain conditions".
> * doc/automake.texi (Basics of Distribution): Update accordingly.
> * tests/autodist-subdir.test: Update.
> * tests/autodist-no-duplicate.test: Likewise.
> * tests/autodist.test: Likewise.
> (configure.in): Remove useless call to AM_MAINTAINER_MODE.
> ---
>  ChangeLog                        |   11 +++++++++++
>  automake.in                      |    8 ++++++--
>  doc/automake.texi                |    4 +++-
>  tests/autodist-no-duplicate.test |   32 +++++++++++++++++++++-----------
>  tests/autodist-subdir.test       |   27 +--------------------------
>  tests/autodist.test              |   29 +----------------------------
>  6 files changed, 43 insertions(+), 68 deletions(-)
> 
>
I've pushed these patches to maint now (after rebasing), and merged
to master.

Regards,
  Stefano