[MacPorts] #37263: erlang: use compiler_blacklist_versions portgroup

[MacPorts]

#37263: erlang: use compiler_blacklist_versions portgroup
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 Reporter:  ciserlohn@…  |      Owner:  bfulgham@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.1.2
 Keywords:               |       Port:  erlang
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 As said in #37166 erlang works at least with clang version: 'Apple clang
 version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)'). Using
 the compiler_blacklist_version portgroup (see
 http://trac.macports.org/browser/trunk/dports/_resources/port1.0/group/compiler_blacklist_versions-1.0.tcl)
 it is avoidable to generally forbid the usage of clang for building
 erlang.

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Ticket URL: <https://trac.macports.org/ticket/37263>
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