[MacPorts] #55382: cmake @3.10.0: Cannot find a C++ compiler supporting C++11 on this system

[MacPorts]

#55382: cmake @3.10.0: Cannot find a C++ compiler supporting C++11 on this system
-------------------------+-------------------------------------------------
  Reporter:  ryandesign  |      Owner:  michaelld
      Type:  defect      |     Status:  new
  Priority:  High        |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  tiger leopard snowleopard lion
      Port:  cmake       |  mountainlion
-------------------------+-------------------------------------------------

Comment (by kencu):

 Marcus, the gcc5-ABI handling ability showed up in clang-3.9.

 clang-3.7 doesn't contain the code to make the gcc5 ABI work. Neither did
 clang-3.8, until some patches on debian were found that apply to
 clang-3.8.

 These are the two patches I use in clang-3.8 to get started. Then I added
 the macports-libstdc++ bit of yours (but that only works with the patches
 added below)

 <https://reviews.llvm.org/D18035?id=61350>

 <https://reviews.llvm.org/D17567>


 <https://github.com/kencu/LeopardPorts/blob/master/lang/llvm-3.8/files/4000
 -patch-clang-lib-codegen-targetinfo-ppc-38.diff>

 <https://github.com/kencu/LeopardPorts/blob/master/lang/llvm-3.8/files/4001
 -patch-clang-3.8-gccabi-sema.diff>

--
Ticket URL: <https://trac.macports.org/ticket/55382#comment:47>
MacPorts <https://www.macports.org/>
Ports system for macOS