-- Make a pass at cleaning up contrib/ Makefile.am files
-- Rename many AM_CONDITIONALS for consistency and give them better names to
   better indicate what they mean
-- Remove some dead input plugin tests
-- Clean up AM_PATH_DVDNAV

-- Revisit NLS stuff.  Not much changed, remove the REVISIT tag
-- Change XDG_BASEDIR_CFLAGS to XDG_BASEDIR_CPPFLAGS, because it only includes
   a -I, which is a CPPFLAGS option, not CFLAGS
-- Move XDG stuff up to library checks
-- Cleanup and move zlib checks
-- Move X11 checks up to checks for system services
-- Break audio out plugin stuff into m4/audio_out.m4
-- Break video out plugin stuff into m4/video_out.m4
-- Move libdir name stuff into m4/libFLAC.m4 since that's the only thing that
   uses it.

-- Removed m4/optimizations.m4, and along with it, AC_OPTIMIZATIONS.
-- Stripped down, cleaned up, and merged the former together with other compiler
   characteristic checks.
-- Do not set any optimization flags into CFLAGS.  Update all Makefile.am's with
   proper AM_CFLAGS, AM_CPPFLAGS, AM_LDFLAGS, etc. to set up optimization flags,
   usually from DEFAULT_OCFLAGS.
-- Start cleaning up CFLAGS/CPPFLAGS stuff in Makefile.am's all over the place.
-- Correct a number of places where CFLAGS itself was being mangled in
   Makefile to on-the-fly adjust optimizations to work around compiler bugs.
   This stuff is now done correctly.
-- The run of automake from autogen.sh is now clean of warnings.
-- Cleaned out some (now) dead macros from m4/_xine.m4
-- Mac OS X intel builds out-of-the-box now -- dropped optimization on
   post/deinterlace/plugins/kdetv-greedyh to O1_CFLAGS.
-- OBJCFLAGS is now getting set correctly everywhere that it needs to be
-- Various other miscellaneous cleanups all over

First of all, as we check the presence of the attribute in configure.ac and
we generate the XINE_PACKED definition there, there's no need to do the work
again on attributes.h.

Also remove #pragma pack support for now, as the trick is just not neat enough,
and as it is it's just noise.

Make Wine, libdvdnav and nosefart use XINE_PACKED rather than doing their own
checks, as they are less reliable.