[MacPorts] #57061: glib2 @2.56.2: won't build +universal if libgcc7 installed

[MacPorts]

#57061: glib2 @2.56.2: won't build +universal if libgcc7 installed
---------------------+---------------------------
  Reporter:  kencu   |      Owner:  ryandesign
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  tiger leopard
      Port:  glib2   |
---------------------+---------------------------

Comment (by kencu):

 This is happening with more ports now. I know the `libgcc*` ports just
 were reworked, and I wonder if it might have something to do with that.

 In the `libgcc7` port, we have this:
 {{{
         if { ${isLastSupported} } {
             # For binary compatibility with binaries that linked against
 the old libstdcxx port
             ln -s libgcc/libstdc++.6.dylib
 ${destroot}${prefix}/lib/libstdc++.6.dylib
         } else {
 }}}
 and it's this symlink that seems to be causing the issue. I have a feeling
 that the "old libstdcxx" port is long gone out of interest now, and
 perhaps I can delete this symlink and everything will work properly. This
 symlink has been in the libgcc ports for a long time, though -- not sure
 why I'm just seeing this lately.

-- 
Ticket URL: <https://trac.macports.org/ticket/57061#comment:2>
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