[MacPorts] #71027: cubeb needs C++17

[MacPorts]

#71027: cubeb needs C++17
-------------------------------------------------+-------------------------
 Reporter:  barracuda156                         |      Owner:  herbygillot
     Type:  defect                               |     Status:  assigned
 Priority:  Normal                               |  Milestone:
Component:  ports                                |    Version:  2.10.2
 Keywords:  elcapitan, yosemite, mavericks,      |       Port:  cubeb
  mountainlion, lion, snowleopard, leopard       |
-------------------------------------------------+-------------------------
 `cubeb` fails on < 10.12 now.

 The first issue is that it requires C++17 (trivial to fix):
 {{{
 CMake Error in
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_audio_cubeb/cubeb/work/build/CMakeFiles/CMakeScratch
 /TryCompile-x2dFaA/CMakeLists.txt:
   Target "cmTC_d5b11" requires the language dialect "CXX17" (with compiler
   extensions).  But the current compiler "AppleClang" does not support
 this,
   or CMake does not know the flags to enable it.


 CMake Error in
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_audio_cubeb/cubeb/work/build/CMakeFiles/CMakeScratch
 /TryCompile-x2dFaA/CMakeLists.txt:
   Target "cmTC_d5b11" requires the language dialect "CXX17" (with compiler
   extensions).  But the current compiler "AppleClang" does not support
 this,
   or CMake does not know the flags to enable it.
 }}}

 The second issue may be Clang-specific, I do not know what causes it:
 {{{
 [ 50%] Building CXX object CMakeFiles/cubeb.dir/src/cubeb_log.cpp.o
 /usr/bin/clang++ -DEXPORT="" -DFLOATING_POINT -DOUTSIDE_SPEEX
 -DRANDOM_PREFIX=speex -DUSE_AUDIOUNIT
 -I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_audio_cubeb/cubeb/work
 /cubeb-2bee6bcbd37b121ab197193fe466eef0e91b62b1/include
 -I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_audio_cubeb/cubeb/work/build/exports
 -I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_audio_cubeb/cubeb/work
 /cubeb-2bee6bcbd37b121ab197193fe466eef0e91b62b1/subprojects -pipe -Os
 -DNDEBUG -I/opt/local/include -stdlib=libc++ -Wall -Wextra -Wno-unused-
 parameter -fno-exceptions -fno-rtti -std=gnu++1z -arch x86_64 -mmacosx-
 version-min=10.11 -fvisibility=hidden -fvisibility-inlines-hidden -MD -MT
 CMakeFiles/cubeb.dir/src/cubeb_log.cpp.o -MF
 CMakeFiles/cubeb.dir/src/cubeb_log.cpp.o.d -o
 CMakeFiles/cubeb.dir/src/cubeb_log.cpp.o -c
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_audio_cubeb/cubeb/work
 /cubeb-2bee6bcbd37b121ab197193fe466eef0e91b62b1/src/cubeb_log.cpp
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_audio_cubeb/cubeb/work
 /cubeb-
 2bee6bcbd37b121ab197193fe466eef0e91b62b1/src/cubeb_audio_dump.cpp:179:31:
 error: copying member subobject of type 'std::atomic<bool>' invokes
 deleted constructor
   std::atomic<bool> running = false;
                               ^~~~~
 /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/atomic:998:7:
 note: copy constructor of 'atomic<bool>' is implicitly deleted because
 base class '__atomic_base<bool>' has a deleted copy constructor
     : public __atomic_base<_Tp>
       ^
 /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/atomic:902:5:
 note: '__atomic_base' has been explicitly marked deleted here
     __atomic_base(const __atomic_base&) = delete;
     ^
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_audio_cubeb/cubeb/work
 /cubeb-
 2bee6bcbd37b121ab197193fe466eef0e91b62b1/src/cubeb_audio_dump.cpp:179:21:
 warning: private field 'running' is not used [-Wunused-private-field]
   std::atomic<bool> running = false;
                     ^
 1 warning and 1 error generated.
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/71027>
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