diff options
Diffstat (limited to 'src/bootstrap/bin/rustdoc.rs')
| -rw-r--r-- | src/bootstrap/bin/rustdoc.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/bootstrap/bin/rustdoc.rs b/src/bootstrap/bin/rustdoc.rs index 87c1d22e7..e69cab956 100644 --- a/src/bootstrap/bin/rustdoc.rs +++ b/src/bootstrap/bin/rustdoc.rs @@ -11,6 +11,7 @@ include!("../dylib_util.rs"); fn main() { let args = env::args_os().skip(1).collect::<Vec<_>>(); + let stage = env::var("RUSTC_STAGE").expect("RUSTC_STAGE was not set"); let rustdoc = env::var_os("RUSTDOC_REAL").expect("RUSTDOC_REAL was not set"); let libdir = env::var_os("RUSTDOC_LIBDIR").expect("RUSTDOC_LIBDIR was not set"); let sysroot = env::var_os("RUSTC_SYSROOT").expect("RUSTC_SYSROOT was not set"); @@ -62,6 +63,16 @@ fn main() { cmd.arg("-Clink-arg=-Wl,--threads=1"); } } + // Cargo doesn't pass RUSTDOCFLAGS to proc_macros: + // https://github.com/rust-lang/cargo/issues/4423 + // Thus, if we are on stage 0, we explicitly set `--cfg=bootstrap`. + // We also declare that the flag is expected, which we need to do to not + // get warnings about it being unexpected. + if stage == "0" { + cmd.arg("--cfg=bootstrap"); + } + cmd.arg("-Zunstable-options"); + cmd.arg("--check-cfg=values(bootstrap)"); if verbose > 1 { eprintln!( |