[MacPorts] #39320: gtkmm @2.24.3_2 - triggers rebuild due to implicit pangomm variant mismatch

[MacPorts]

#39320: gtkmm @2.24.3_2 - triggers rebuild due to implicit pangomm variant mismatch
-----------------------------+----------------------
  Reporter:  maverick.woo@…  |      Owner:  devans@…
      Type:  defect          |     Status:  reopened
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.1.3
Resolution:                  |   Keywords:
      Port:  gtkmm           |
-----------------------------+----------------------
Changes (by cal@…):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 This breaks the upgrade path for all users that have pango and cairo
 installed with +quartz, requiring manual intervention:

 {{{
 --->  Computing dependencies for pangomm
 --->  Fetching archive for pangomm
 Error: org.macports.archivefetch for port pangomm returned:
 path:lib/pkgconfig/cairo.pc:cairo cairomm pango must be installed without
 +quartz.
 Please see the log file for port pangomm for details:
     /opt/local/var/macports/logs/_opt_dports_x11_pangomm/pangomm/main.log
 Error: Unable to upgrade port: 1
 }}}

 While manually running
 {{{
 sudo port upgrade --enforce-variants pangomm -x11 +quartz
 }}}
 works, it would be easier, if the Port checked whether pango or cairo were
 already installed and changed its `default_variants` depending on their
 installed variants. After all, there's no point in setting a
 `default_variant` that will not be installable on a user's system.

-- 
Ticket URL: <https://trac.macports.org/ticket/39320#comment:10>
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