[MacPorts] #49500: fltk at 1.3.3 build fails because header objc/NSObjCRuntime.h not found

[MacPorts]

#49500: fltk at 1.3.3 build fails because header objc/NSObjCRuntime.h not found
--------------------------+-------------------------
  Reporter:  nico.mack@…  |      Owner:  michaelld@…
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.4
Resolution:               |   Keywords:
      Port:  fltk         |
--------------------------+-------------------------

Comment (by michaelld@…):

 I just pushed r142207, which hopefully fixes this issue. You'll want to do
 something like:
 {{{
 sudo port clean "fltk*"
 sudo port selfupdate
 }}}
 and, then try again & see if fltk installs. Please report back successes
 or failures here ...

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Ticket URL: <https://trac.macports.org/ticket/49500#comment:4>
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