Branch: refs/heads/master
  Home:   https://github.com/NixOS/nixpkgs
  Commit: 3a9c217804688668404ebfe9a199e6e85297a3a7
      
https://github.com/NixOS/nixpkgs/commit/3a9c217804688668404ebfe9a199e6e85297a3a7
  Author: Dan Peebles <pump...@me.com>
  Date:   2017-04-04 (Tue, 04 Apr 2017)

  Changed paths:
    M pkgs/development/tools/rtags/default.nix
    M pkgs/os-specific/darwin/apple-sdk/default.nix

  Log Message:
  -----------
  rtags: fix for clang/libc++ 4

This also fixes a missing header in the SDK that rtags needs to work
properly. The underlying cause is that C++ headers got shuffled around a
lot in libc++ 3.8 (I believe) and became more standards-compliant, which
led to a lot of C-compatible passthrough header files being added to it
like math.h, which defines some C++-compatible versions of standard
functions like signbit, while #include_next'ing the system math.h. In
this case, including the SDK was stuffing another math.h in front of the
libc++ shim, which led to all sorts of mysterious failures.


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