[MacPorts] #28028: unison 2.40.61 upgrade proposal

[MacPorts]

#28028: unison 2.40.61 upgrade proposal
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 Reporter:  macosx12345@…         |       Owner:  macports-tickets@…                   
     Type:  update                |      Status:  new                                  
 Priority:  Normal                |   Milestone:                                       
Component:  ports                 |     Version:  1.9.2                                
 Keywords:                        |        Port:  unison                               
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 This an update proposal to the latest stable version of unison. This
 version is needed for use under Mac OS X 64 bits.

 Unfortunately, there is a bug in the Makefile of unison 2.40.61 (which was
 not present in e.g. unison 2.32 or 2.40.16), but since version 2.40.61 has
 been made stable, it seems that this bug should not be corrected by the
 authors anytime soon. It has been discussed on the unison-users mailing
 list since at least October 2010. The provided patch corrects this bug (in
 addition to adapting the Makefile to MacPorts' file hierarchy).

 As for any minor version change, this version will break compatibility
 with the unison archive files produced by the previous version (see
 discussion in #14172 and Unison's manual,
 http://www.cis.upenn.edu/~bcpierce/unison/download/releases/stable/unison-
 manual.html#upgrading).

 Finally, notice that, after upgrading the libpng port to version 1.4.5,
 which triggers an update of the gtk2 port if `port -u upgrade libpng` was
 used, it may be necessary to discard and rebuild lablgtk2 (otherwise, the
 build of unison will still try to link against libpng12 which no longer
 exists).

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Ticket URL: <https://trac.macports.org/ticket/28028>
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