[MacPorts] #54358: texlive-bin @2017 won't build on Snow Leopard, Mac OS X 10.6.8, because "A compiler with support for C++11 language features is required"

[MacPorts]

#54358: texlive-bin @2017 won't build on Snow Leopard, Mac OS X 10.6.8, because "A
compiler with support for C++11 language features is required"
-------------------------+-------------------------------------------------
  Reporter:  ballapete   |      Owner:  drkp
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.4.1
Resolution:  fixed       |   Keywords:  mountain lion snowleopard leopard
      Port:  texlive-    |  tiger
  bin                    |
-------------------------+-------------------------------------------------

Comment (by kencu):

 These two additions
 {{{
 configure.cxxflags-append -std=c++11
 configure.cxxflags-append -Wno-reserved-user-defined-literal
 }}}
 fix the build on 10.7 configured with -stdlib=libstdc++ using the cxx11
 1.1 PortGroup.
 {{{
 $ port -v installed texlive-bin poppler
 The following ports are currently installed:
   poppler @0.57.0_0 (active) platform='darwin 11' archs='x86_64'
 date='2017-08-27T15:27:45-0700'
   texlive-bin @2017_1+x11 (active) platform='darwin 11' archs='x86_64'
 date='2017-08-27T16:40:00-0700'
 }}}

 Of interest, it builds with -stdlib=libc++ using clang-4.0 on Sierra
 without those additions, and it built on 10.6 with clang-3.9 against
 libc++, so it seems we could be noticing something different using
 clang-4.0 to build against gcc6's libstdc++ headers.

 Just FYI, it also builds without modification on 10.5 PPC
 {{{
 $ port -v installed texlive-bin poppler
 The following ports are currently installed:
   poppler @0.57.0_0 (active) platform='darwin 9' archs='ppc'
 date='2017-08-27T15:38:51-0700'
   texlive-bin @2017_1+x11 (active) platform='darwin 9' archs='ppc'
 date='2017-08-27T16:14:58-0700'
 }}}

 Now to sort out exactly which systems need the extra bit added. I suspect
 we could probably add those two additions to all builds on all systems for
 simplicity, if gcc6 tolerates `-Wno-reserved-user-defined-literal`. If
 not, have to restrict that to clangs.

--
Ticket URL: <https://trac.macports.org/ticket/54358#comment:27>
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