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Auto merge of #189 - tamird:update-comment-rustbuild, r=alexcrichton

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Update rustbuild commentary

r? @nikomatsakis

This is the reason that https://github.com/rust-lang/rust/pull/44509 doesn't work - the `rustbuild` feature _is_ actually used, it was just incorrectly documented here and I missed it.
This commit is contained in:
bors 2017-09-14 00:46:30 +00:00
commit ef4951582f
1 changed files with 8 additions and 4 deletions
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12
build.rs
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@ -4106,9 +4106,11 @@ mod c {
// also needs to satisfy intrinsics that jemalloc or C in general may
// need, so include a few more that aren't typically needed by
// LLVM/Rust.
sources.extend(&[
"ffsdi2.c",
]);
if cfg!(feature = "rustbuild") {
sources.extend(&[
"ffsdi2.c",
]);
}
if target_os != "ios" {
sources.extend(
@ -4359,7 +4361,9 @@ mod c {
sources.remove(&["aeabi_cdcmp", "aeabi_cfcmp"]);
}
let root = if env::var_os("CARGO_FEATURE_RUSTBUILD").is_some() {
// When compiling in rustbuild (the rust-lang/rust repo) this build
// script runs from a directory other than this root directory.
let root = if cfg!(feature = "rustbuild") {
Path::new("../../libcompiler_builtins")
} else {
Path::new(".")