[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):

 Surprisingly:
 {{{
 Executing:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_cmake/cmake/work/cmake-3.10.0"
 && ./configure --prefix=/opt/local --docdir=share/doc/cmake --parallel=4
 --init=/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_cmake/cmake/work/cmake-3.10.0/macports.cmake
 --system-libs --no-system-jsoncpp --no-system-librhash --no-qt-gui
 ---------------------------------------------
 CMake 3.10.0, Copyright 2000-2017 Kitware, Inc. and Contributors
 C compiler on this system is: /opt/local/bin/clang-mp-3.7 -pipe -Os -arch
 x86_64
 ---------------------------------------------
 Error when bootstrapping CMake:
 Cannot find a C++ compiler supporting C++11 on this system.
 Please specify one using environment variable CXX.
 See cmake_bootstrap.log for compilers attempted.
 }}}

 Perhaps it needs a flag to function. Will explore.

--
Ticket URL: <https://trac.macports.org/ticket/55382#comment:3>
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