d974aade93
llvm-config may be installed somewhere that's not on the path or in ocaml's default lib directory, so allow users to override $CFG_LLVM_CONFIG with an environment variable and look up lib and binary paths through calls to llvm-config.
This is a compiler and suite of associated libraries and documentation for the Rust programming language. See LICENSE.txt for terms of copyright and redistribution. See http://github.com/graydon/rust for current development page.