[MacPorts] #38388: libxml2: update to 2.9.0

[MacPorts]

#38388: libxml2: update to 2.9.0
---------------------------------+----------------------------
  Reporter:  ryandesign@…        |      Owner:  cedric.luthi@…
      Type:  update              |     Status:  new
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:
Resolution:                      |   Keywords:
      Port:  libxml2 py-libxml2  |
---------------------------------+----------------------------

Comment (by larryv@…):

 Replying to [comment:3 egall@…]:
 > {{{
 > Local-Admins-MacBook-Pro:my_dotfiles ericgallager$ port dependents
 libxml2 | wc -l
 >      126
 > }}}

 That only shows you the dependents that are currently installed.
 {{{
 % port file all | sort -u | xargs grep -El ':(libxml2|py.+-libxml2)' | wc
 -l
      242
 }}}

 > {{{
 > Local-Admins-MacBook-Pro:my_dotfiles ericgallager$ port rdependents
 libxml2 | wc -l
 >     1320
 > }}}
 > ...looks like a lot of stuff is going to need to be revbumped...

 Dependencies of dependencies do not need revbumps due to library updates.
 If a file links against a library, its port should have a direct
 dependency on the library’s port (libtool nonsense aside).

 In any case, nothing will have to be revbumped. As far as I can tell from
 inspecting the source, the library name is not changing.

-- 
Ticket URL: <https://trac.macports.org/ticket/38388#comment:4>
MacPorts <http://www.macports.org/>
Ports system for OS X