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Resolve unexpected_cfgs warning #48

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merged 1 commit into from
May 7, 2024
Merged

Resolve unexpected_cfgs warning #48

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Resolve unexpected_cfgs warning 
    warning: unexpected `cfg` condition name: `cfg_macro_not_allowed`
       --> src/lib.rs:235:11
        |
    235 | #[cfg(not(cfg_macro_not_allowed))]
        |           ^^^^^^^^^^^^^^^^^^^^^
        |
        = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, `windows`
        = help: consider using a Cargo feature instead or adding `println!("cargo::rustc-check-cfg=cfg(cfg_macro_not_allowed)");` to the top of the `build.rs`
        = note: see <https://doc.rust-lang.org/nightly/cargo/reference/build-scripts.html#rustc-check-cfg> for more information about checking conditional configuration
        = note: `#[warn(unexpected_cfgs)]` on by default
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@dtolnay
dtolnay committed May 7, 2024
commit 84f01fa8d731c51842848a4e4d27750cefd879e0
4 changes: 4 additions & 0 deletions build/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,10 @@ fn main() {
println!("cargo:rustc-cfg=cfg_macro_not_allowed");
}

if version.minor >= 80 {
println!("cargo:rustc-check-cfg=cfg(cfg_macro_not_allowed)");
}

let version = format!("{:#?}\n", version);
let out_dir = env::var_os("OUT_DIR").expect("OUT_DIR not set");
let out_file = Path::new(&out_dir).join("version.expr");
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