Ports breakage since r205471

Hi all,
    I realize that this is most suitable for current_at_ and I'm
cross-posting, but I wanted to jot down all of the ports broken since
the zlib version bump so that we can keep track of what's going on and
what needs to be fixed.
    The following 3rd party libraries and all of their dependencies:

graphics/png
graphics/tiff
textproc/libxml2

   all needed to be rebuilt.
   The following items incorrectly define LARGEFILE64 and result in
errors like the following:

/usr/include/zlib.h:1561: error: expected '=', ',', ';', 'asm' or
'__attribute__' before 'gzseek64'
/usr/include/zlib.h:1562: error: expected '=', ',', ';', 'asm' or
'__attribute__' before 'gztell64'
/usr/include/zlib.h:1563: error: expected '=', ',', ';', 'asm' or
'__attribute__' before 'gzoffset64'
/usr/include/zlib.h:1564: error: expected declaration specifiers or
'...' before 'off64_t'
/usr/include/zlib.h:1565: error: expected declaration specifiers or
'...' before 'off64_t'

devel/qt-moc
lang/python (uses pieces from gpac-libgpac I think)
multimedia/gpac-libgpac
multimedia/vlc (draft patch attached to ports/145387)

   Also, I really think we should add packaging metadata to third
party libraries in base and at least track the versioning and
dependencies because this CURRENT upgrade has turned into a royal mess
and has eaten up more of my time than it should have.
Thanks,
-Garrett