[MacPorts] #62105: kdelibs4 @ 4.14.3_15: build failure on Catalina

[MacPorts]

#62105: kdelibs4 @ 4.14.3_15:  build failure on Catalina
-----------------------------+-------------------------
  Reporter:  DaveStrickland  |      Owner:  NicosPavlov
      Type:  defect          |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.6.4
Resolution:                  |   Keywords:  catalina
      Port:  kdelibs4        |
-----------------------------+-------------------------

Comment (by DaveStrickland):

 Thanks for mentioning libiodbc, that seems to be the key. I got soprano
 and kdelibs4 to compile successfully after getting libiodbc to compile
 successfully using the workaround in #51921.

 Basically I did the following, although there might be a neater way of
 doing it.
 {{{
 sudo port uninstall libiodbc soprano
 # Accepted when it warns that ports will break
 sudo port clean libiodbc soprano
 sudo port install -t libiodbc
 # This command successfully builds and installs libiodbc, then recompiles
 kdelibs4 and various other kde applications
 }}}

 I'd be interested in hearing why this problem appeared in the first place,
 and what the trace mode does differently that gets around it, just for
 future reference.

-- 
Ticket URL: <https://trac.macports.org/ticket/62105#comment:12>
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