[MacPorts] #49778: libcxxabi @3.7.0_0 should use clang-3.4 or newer on 10.6.8

[MacPorts]

#49778: libcxxabi @3.7.0_0 should use clang-3.4 or newer on 10.6.8
-------------------------+--------------------------------
 Reporter:  braumann@…   |      Owner:  macports-tickets@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.4
 Keywords:               |       Port:  libcxxabi
-------------------------+--------------------------------
 Building {{{libcxxabi @3.7.0_0}}} on 10.6.8 applies old /usr/bin/clang
 shipped with Xcode (3.2.6 or 4.2), which however cannot treat the
 -stdlib=libc++ switch, so on 10.6.8 {{{clang-3.4}}} (or newer) should be
 used, e.g. this works:
 {{{
 $ sudo port upgrade libcxxabi configure.compiler=macports-clang-3.4
 }}}

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Ticket URL: <https://trac.macports.org/ticket/49778>
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