[libc++] Patch for AIX port

[Joerg Sonnenberger]

On Tue, Aug 13, 2013 at 08:59:13PM -0400, Howard Hinnant wrote:
> diff -ruN libcxx.orig/lib/buildit libcxx/lib/buildit
> --- libcxx.orig/lib/buildit	2013-08-13 15:51:00.510247093 -0400
> +++ libcxx/lib/buildit	2013-08-12 17:45:00.180244845 -0400
> @@ -136,13 +153,23 @@
>          ;;
>      *-*-mingw*)
>          ;;
> +    *-ibm-*)
> +        if [ $hostOS == "linux" ]
> +        then
> +           rm -f libc++.so
> +           ln -s libc++.so.1.0 libc++.so
> +        else #AIX
> +           rm -f libc++.a
> +           ar r libc++.a shr.o
> +        fi
> +        ;;
>      *)
>          rm -f libc++.so
> -        ln -s libc++.so.1 libc++.so
> +        ln -s libc++.so.1.0 libc++.so
>          ;;
>  esac

Why is this matching the vendor at all?

Joerg