Public bug reported:

This is mirroring Debian bug #808086 https://bugs.debian.org/cgi-
bin/bugreport.cgi?bug=808086

Compiling any source file that includes <string> with clang 3.8 and
-std=c++11 -stdlib=libc++ results in a compile error.

While this is a minor bug in Debian (as it doesn't ship 3.8 yet), xenial
does, and that's a major problem as it makes libc++ useless.


clang: warning: argument unused during compilation: '-stdlib=libc++'
In file included from test.cpp:1:
In file included from /usr/include/c++/v1/iostream:38:
In file included from /usr/include/c++/v1/ios:216:
In file included from /usr/include/c++/v1/__locale:15:
/usr/include/c++/v1/string:1938:44: error: 'basic_string<_CharT, _Traits, 
_Allocator>' is missing exception specification 
'noexcept(is_nothrow_copy_constructible<allocator_type>::value)'
basic_string<_CharT, _Traits, _Allocator>::basic_string(const allocator_type& 
__a)
                                           ^
/usr/include/c++/v1/string:1326:76: note: previous declaration is here
    __attribute__ ((__visibility__("hidden"), __always_inline__)) explicit 
basic_string(const allocator_type& __a)
                                                                           ^
1 error generated.

** Affects: libc++ (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1610168

Title:
  error: 'basic_string<_CharT, _Traits, _Allocator>' is missing
  exception specification

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