[MacPorts] #52002: lilypond build fails due to missing reference to libc++ on some Darwin systems - fix attached

[MacPorts]

#52002: lilypond build fails due to missing reference to libc++ on some Darwin
systems - fix attached
-------------------------------------+--------------------
  Reporter:  kenneth.f.cunningham@…  |      Owner:  snc@…
      Type:  defect                  |     Status:  closed
  Priority:  Normal                  |  Milestone:
 Component:  ports                   |    Version:  2.3.4
Resolution:  fixed                   |   Keywords:
      Port:  lilypond                |
-------------------------------------+--------------------
Changes (by ryandesign@…):

 * cc: ryandesign@… (added)


Old description:

> Lily pond fails to build on Snow Leopard with the
> <https://trac.macports.org/wiki/LibcxxOnOlderSystems> upgrade, due to
> missing reference to libc++. Failed build log attached. Fix Portfile diff
> also attached, that add reference to libc++ on Darwin Mountain Lion and
> lower with  configure.cxx_stdlib=libc++

New description:

 Lily pond fails to build on Snow Leopard with the LibcxxOnOlderSystems
 upgrade, due to missing reference to libc++. Failed build log attached.
 Fix Portfile diff also attached, that add reference to libc++ on Darwin
 Mountain Lion and lower with  configure.cxx_stdlib=libc++

--

Comment:

 Can anyone explain why `-lc++` is used here instead of the more usual
 `-stdlib=libc++`?

 Indeed, does this need to be specific to darwin or libc++? Why not just:

 {{{
 configure.ldflags-append -stdlib=${configure.cxx_stdlib}
 }}}

 Has anyone reported this problem to the developers of lilypond so they can
 fix it in their sources? MacPorts sets `-stdlib=whatever` in CXXFLAGS,
 lilypond just seems to be neglecting to use the CXXFLAGS variable when
 linking C++ code.

-- 
Ticket URL: <https://trac.macports.org/ticket/52002#comment:4>
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