[MacPorts] #36975: PortGroup cmake: integration with muniversal portgroup

[MacPorts]

#36975: PortGroup cmake: integration with muniversal portgroup
-------------------------+--------------------------------
 Reporter:  nicos@…      |      Owner:  macports-tickets@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.1.2
 Keywords:               |       Port:
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 In the present state, the cmake portgroup does not integrate well with the
 muniversal one, as it forces building multiple architectures together in
 case of +universal variant:
 {{{
 configure.universal_args-append \
             -DCMAKE_OSX_ARCHITECTURES=\"[join ${configure.universal_archs}
 \;]\"
 }}}

 This code should be deactivated in case of muniversal portgroup to enable
 separate builds. Attached are patches in order to make it possible. The
 way may be naive as it requires adding a global variable to muniversal,
 but it works according to my tests.

 My apologies if I cc'ed the wrong person, but I am not sure of who should
 be assigned in case of Portgroups.

-- 
Ticket URL: <https://trac.macports.org/ticket/36975>
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