[MacPorts] #34605: kdelibs4 @4.8.2_0 __KDE_HAVE_GCC_VISIBILITY not defined in <prefix>/include/kdemacros.h

[MacPorts]

#34605: kdelibs4 @4.8.2_0 __KDE_HAVE_GCC_VISIBILITY not defined in
<prefix>/include/kdemacros.h
--------------------------------+-------------------------------------------
 Reporter:  iandw.au@…          |       Owner:  snc@…           
     Type:  defect              |      Status:  new             
 Priority:  Normal              |   Milestone:                  
Component:  ports               |     Version:  2.0.4           
 Keywords:                      |        Port:  kdelibs4        
--------------------------------+-------------------------------------------
Changes (by ryandesign@…):

 * cc: sharky@…, michaelld@… (added)
  * owner:  macports-tickets@… => snc@…
  * port:  kdelibs4 @4.8.2_0 => kdelibs4


Old description:

> The file <prefix>/include/kdemacros.h is apparently generated by the
> CMake script <prefix>/share/apps/cmake/modules/FindKDE4Internal.cmake,
> where the KDE build tries to establish the compiler environment.  After
> my kdelibs4 @4.8.2_0 install, I found that no other libraries I compiled
> and built with #include kdemacros.h could be linked to applications code
> (I have a development version of KDE Games on Apple).  The reason was
> that GCC visibility of library classes and symbols was not available,
> because kdemacros.h did not have __KDE_HAVE_GCC_VISIBILITY defined.
>
> Macports 2.0.4, XCode 4.2.1 and OSX 10.7.4 are giving me the symbolic
> link /usr/bin/c++ -> llvm-g++-4.2  When I force definition of
> __KDE_HAVE_GCC_VISIBILITY in my CMakeLists.txt, everything compiles and
> links OK and works fine.  So I guess llvm-g++-4.2 is a GCC-like compiler,
> but is not being recognised as such.

New description:

 The file <prefix>/include/kdemacros.h is apparently generated by the CMake
 script <prefix>/share/apps/cmake/modules/FindKDE4Internal.cmake, where the
 KDE build tries to establish the compiler environment.  After my kdelibs4
 @4.8.2_0 install, I found that no other libraries I compiled and built
 with #include kdemacros.h could be linked to applications code (I have a
 development version of KDE Games on Apple).  The reason was that GCC
 visibility of library classes and symbols was not available, because
 kdemacros.h did not have !__KDE_HAVE_GCC_VISIBILITY defined.

 Macports 2.0.4, XCode 4.2.1 and OSX 10.7.4 are giving me the symbolic link
 /usr/bin/c++ -> llvm-g++-4.2  When I force definition of
 !__KDE_HAVE_GCC_VISIBILITY in my CMakeLists.txt, everything compiles and
 links OK and works fine.  So I guess llvm-g++-4.2 is a GCC-like compiler,
 but is not being recognised as such.

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Ticket URL: <https://trac.macports.org/ticket/34605#comment:1>
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