Note that this recipe depends in on an older version of binutils
(2.26.1), as the current version of binutils (version 2.28.1) has ld
crash in linking the libLTO.so library from the bundled llvm. This is,
by the way, the same on the recipe of llvm-3.8.1 in this repository.
The recipe for 1.9.0 will build the full compiler suite for x86_gcc2,
and it will 'wrap' a binary stage0 compiler for x86_64.
The recipe for 1.10.0 is a complete build.
These recipes don't create the rust_runtime packages. This package
should be recreated at a later point, but we will need to think about
the package naming, as it will be very much possible to have various
runtime libraries running alongside each other.
