[MacPorts] #49709: cmake, gnuradio, gr-foo, gr-ieee802-11, gr-ieee802-15-4, volk: just use cxx11 1.0 portgroup

[MacPorts]

#49709: cmake, gnuradio, gr-foo, gr-ieee802-11, gr-ieee802-15-4, volk: just use
cxx11 1.0 portgroup
-------------------------------------------------+-------------------------
  Reporter:  ryandesign@…                        |      Owner:  michaelld@…
      Type:  defect                              |     Status:  new
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:  2.3.4
Resolution:                                      |   Keywords:  haspatch
      Port:  cmake gnuradio gr-foo gr-           |
  ieee802-11 gr-ieee802-15-4 volk                |
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Comment (by michaelld@…):

 The cxx11 1.0 port group only handles C++11 for libc++. It does not handle
 C++11 for libstdc++. From the comment in that PortGroup:
 {{{
 # Compilers supporting C++11 are GCC >= 4.6 and clang >= 3.3.
 # As we only support libc++, clang is implicitly required.
 # Blacklist all GCC compilers to not accidentally pull in libstdc++.
 # We do not know what "cc" is, so blacklist it as well.
 }}}

 There have been past discussions on the MP-dev list about this topic, and
 the conclusion is that there is no generic way to handle libstdc++ and
 C++11 within the current MP framework. That said, my way here works for
 the GR ports & is used by some users / customers (per email feedback).
 Until MP comes up with a good way of handling libstdc++ and C++11, I'm
 going to leave these in place; maybe update them to use gcc5.

 There is a lot of redundancy in the GR-related ports, quite true. I will
 look into creating a GR PortGroup file sooner or later, which incorporates
 the common parts of the GR Portfiles as well as some optional function to
 handle C++11 (such that there's just 1 place to make any C++11 changes,
 assuming MP ever gets to that point).

-- 
Ticket URL: <https://trac.macports.org/ticket/49709#comment:1>
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