[MacPorts] #34288: clang ports use the old/dated libstdc++ from the host (gcc-4.2 based)

[MacPorts]

#34288: clang ports use the old/dated libstdc++ from the host (gcc-4.2 based)
-----------------------------------------------------------------------+----
  Reporter:  christophe.prudhomme@…                                    |       Owner:  jeremyhu@…           
      Type:  defect                                                    |      Status:  reopened             
  Priority:  Normal                                                    |   Milestone:                       
 Component:  ports                                                     |     Version:  2.0.4                
Resolution:                                                            |    Keywords:                       
      Port:  clang-2.9 clang-3.0 clang-3.1 clang-3.2 libstdc++ libc++  |  
-----------------------------------------------------------------------+----

Comment(by jeremyhu@…):

 Replying to [comment:17 help@…]:
 > Replying to [comment:10 jeremyhu@…]:
 > > Right, I need to talk to some people who know more about the low level
 runtimes to figure out what the right course of action is.  I know for
 certain that it's not possible to have more than one ObjC runtime in a
 single process, but I don't know how the C++ runtimes can or can't co-
 exist.  Most of C++ is implemented in the headers themselves as templates,
 and I am worried that passing objects between the g++ 4.7's libstdc++
 runtime and clang++'s libc++ runtime might be problematic.
 > >
 > > The correct solution may end up being the removal of the libstdc++
 runtimes from the gcc ports.  In fact, even if we do provide a C++ runtime
 in MacPorts, I'd prefer to have that as a separate port rather than
 separately from each compiler.
 >
 > Several libstdc++ do not coexist well inside one process. I get
 backtraces like that when compiling with macports gcc46:
 >

 The libstdc++ issue is #35770

-- 
Ticket URL: <https://trac.macports.org/ticket/34288#comment:19>
MacPorts <http://www.macports.org/>
Ports system for Mac OS