[MacPorts] #28719: pango unable to upgrade due to libpng error

[MacPorts]

#28719: pango unable to upgrade due to libpng error
-------------------------------+--------------------------------------------
 Reporter:  yanokwa@…          |       Owner:  macports-tickets@…                   
     Type:  defect             |      Status:  new                                  
 Priority:  Normal             |   Milestone:                                       
Component:  ports              |     Version:  1.9.2                                
 Keywords:                     |        Port:  pango                                
-------------------------------+--------------------------------------------
 when i attempt to upgrade pango, it fails. i have attached the log to this
 ticket, but the relevant error is

 {{{
 :info:build /opt/local/bin/grep: /opt/local/lib/libpng12.la: No such file
 or directory
 :info:build /opt/local/bin/gsed: can't read /opt/local/lib/libpng12.la: No
 such file or directory
 }}}

 i understand there is a problem with the libpng port from 1.2 to 1.4. i've
 tried all the suggestions below. none have worked.

 {{{
 sudo port clean pango
 sudo port selfupdate
 sudo port upgrade outdated
 sudo port -n upgrade --force pango
 }}}

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Ticket URL: <https://trac.macports.org/ticket/28719>
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