[MacPorts] #63385: ld64 +ld64_xcode is there a need for +llvm variant?

[MacPorts]

#63385: ld64 +ld64_xcode is there a need for +llvm variant?
--------------------------+-------------------------
  Reporter:  Gcenx        |      Owner:  kencu
      Type:  enhancement  |     Status:  assigned
  Priority:  Low          |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  +ld64_xcode
      Port:  ld64         |
--------------------------+-------------------------

Comment (by Gcenx):

 I’m not near my system but I’d assume the following;
 {{{

         if {![some_llvm_variant_set] && ![variant_isset ld64_xcode] &&
 ${os.major} >= 9} {
             default_variants +llvm90
         }

         if {![some_llvm_variant_set] && ![variant_isset ld64_xcode] &&
 ${os.major} >= 9} {
             pre-fetch {
                 ui_error "Your platform cannot be configured without LTO
 support in ld64.  Please enable one of the llvmXX variants, and try
 again."
                 return -code error "Your platform cannot be configured
 without LTO support in ld64.  Please enable one of the llvmXX variants,
 and try again."
             }
         }
     }
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/63385#comment:6>
MacPorts <https://www.macports.org/>
Ports system for macOS