[MacPorts] #21300: zlib-1.2.38_0 "Error: Unable to open port: can't read "configure.cc_archflags": no such variable"

[MacPorts]

#21300: zlib-1.2.38_0 "Error: Unable to open port: can't read
"configure.cc_archflags": no such variable"
---------------------------------+------------------------------------------
  Reporter:  eed3si9n@…          |       Owner:  macports-tickets@…                   
      Type:  defect              |      Status:  closed                               
  Priority:  Normal              |   Milestone:                                       
 Component:  ports               |     Version:  1.8.0                                
Resolution:  invalid             |    Keywords:  x86_64 cc_archflags                  
      Port:  libpng, zlib        |  
---------------------------------+------------------------------------------

Comment(by eed3si9n@…):

 I ran sudo port selfupgrade from the Terminal. Also I confirmed the
 version number several times.
 Shouldn't it be 1.8.0 if port -v returns
 {{{
 MacPorts 1.8.0
 Entering interactive mode... ("help" for help, "quit" to quit)
 [work/helloworld] >
 }}}

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Ticket URL: <http://trac.macports.org/ticket/21300#comment:3>
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