.define("LLVM_TARGET_ARCH", target.split('-').next().unwrap())
.define("LLVM_DEFAULT_TARGET_TRIPLE", target);
+ // By default, LLVM will automatically find OCaml and, if it finds it,
+ // install the LLVM bindings in LLVM_OCAML_INSTALL_PATH, which defaults
+ // to /usr/bin/ocaml.
+ // This causes problem for non-root builds of Rust. Side-step the issue
+ // by setting LLVM_OCAML_INSTALL_PATH to a relative path, so it installs
+ // in the prefix.
+ cfg.define("LLVM_OCAML_INSTALL_PATH",
+ env::var_os("LLVM_OCAML_INSTALL_PATH").unwrap_or_else(|| "usr/lib/ocaml".into()));
// This setting makes the LLVM tools link to the dynamic LLVM library,
// which saves both memory during parallel links and overall disk space
}
// http://llvm.org/docs/HowToCrossCompileLLVM.html
- if target != build.build {
+ if target != build.build && !emscripten {
builder.ensure(Llvm {
target: build.build,
emscripten: false,