[MacPorts] #23424: nss: add universal variant

[MacPorts]

#23424: nss: add universal variant
-------------------------------------+--------------------------------------
 Reporter:  ryandesign@…             |       Owner:  jeremyhu@…           
     Type:  enhancement              |      Status:  new                  
 Priority:  Normal                   |   Milestone:                       
Component:  ports                    |     Version:  1.8.2                
 Keywords:                           |        Port:  nss                  
-------------------------------------+--------------------------------------
 nss needs a universal variant, otherwise xulrunner/xulrunner-devel cannot
 be installed on Snow Leopard because nss will be built x86_64 but
 xulrunner forces itself to i386.

 {{{
 $ sudo port install firefox-x11-devel
 --->  Computing dependencies for firefox-x11-devel
 --->  Configuring xulrunner-devel
 Error: You cannot install xulrunner-devel for the architecture(s) i386
 because
 Error: its dependency nss only contains the architecture(s) x86_64.
 Error:
 Error: Try rebuilding nss (and all its dependencies) with
 Error: the +universal variant by running
 Error:
 Error:     sudo port upgrade --enforce-variants nss +universal
 Error:
 Error: Target org.macports.configure returned: incompatible architectures
 in dependencies
 Error: The following dependencies failed to build: xulrunner-devel
 Error: Status 1 encountered during processing.
 Before reporting a bug, first run the command again with the -d flag to
 get complete output.
 }}}

 And of course the archcheck portgroup's suggestion doesn't help because
 nss doesn't actually have a universal variant.

-- 
Ticket URL: <http://trac.macports.org/ticket/23424>
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