diff options
Diffstat (limited to '')
| -rw-r--r-- | build.rs | 26 |
1 files changed, 16 insertions, 10 deletions
@@ -36,10 +36,10 @@ use std::env; use std::ffi::OsString; +use std::iter; use std::path::Path; use std::process::{self, Command, Stdio}; use std::str; -use std::u32; fn main() { let rustc = rustc_minor_version().unwrap_or(u32::MAX); @@ -63,6 +63,11 @@ fn main() { println!("cargo:rustc-cfg=no_source_text"); } + if rustc < 79 { + println!("cargo:rustc-cfg=no_literal_byte_character"); + println!("cargo:rustc-cfg=no_literal_c_string"); + } + if !cfg!(feature = "proc-macro") { println!("cargo:rerun-if-changed=build.rs"); return; @@ -138,15 +143,15 @@ fn compile_probe(rustc_bootstrap: bool) -> bool { let out_dir = cargo_env_var("OUT_DIR"); let probefile = Path::new("build").join("probe.rs"); - // Make sure to pick up Cargo rustc configuration. - let mut cmd = if let Some(wrapper) = env::var_os("RUSTC_WRAPPER") { - let mut cmd = Command::new(wrapper); - // The wrapper's first argument is supposed to be the path to rustc. - cmd.arg(rustc); - cmd - } else { - Command::new(rustc) - }; + let rustc_wrapper = env::var_os("RUSTC_WRAPPER").filter(|wrapper| !wrapper.is_empty()); + let rustc_workspace_wrapper = + env::var_os("RUSTC_WORKSPACE_WRAPPER").filter(|wrapper| !wrapper.is_empty()); + let mut rustc = rustc_wrapper + .into_iter() + .chain(rustc_workspace_wrapper) + .chain(iter::once(rustc)); + let mut cmd = Command::new(rustc.next().unwrap()); + cmd.args(rustc); if !rustc_bootstrap { cmd.env_remove("RUSTC_BOOTSTRAP"); @@ -156,6 +161,7 @@ fn compile_probe(rustc_bootstrap: bool) -> bool { .arg("--edition=2021") .arg("--crate-name=proc_macro2") .arg("--crate-type=lib") + .arg("--cap-lints=allow") .arg("--emit=dep-info,metadata") .arg("--out-dir") .arg(out_dir) |