1 // rustc-cfg emitted by the build script:
5 //     Enabled on rustc 1.29+ as long as procmacro2_semver_exempt is not set,
45     let rustc = rustc_minor_version().unwrap_or(u32::MAX);  in main()  localVariable
51         println!("cargo:rustc-cfg=procmacro2_semver_exempt");  in main()
55         println!("cargo:rustc-cfg=span_locations");  in main()
58     if rustc < 57 {  in main()
59         println!("cargo:rustc-cfg=no_is_available");  in main()
62     if rustc < 66 {  in main()
63         println!("cargo:rustc-cfg=no_source_text");  in main()
109         println!("cargo:rustc-cfg=wrap_proc_macro");  in main()
113         println!("cargo:rustc-cfg=proc_macro_span");  in main()
117         println!("cargo:rustc-cfg=super_unstable");  in main()
127         // We are running inside rustc bootstrap. This is a highly non-standard  in compile_probe()
137     let rustc = cargo_env_var("RUSTC");  in compile_probe()  localVariable
141     // Make sure to pick up Cargo rustc configuration.  in compile_probe()
144         // The wrapper's first argument is supposed to be the path to rustc.  in compile_probe()
145         cmd.arg(rustc);  in compile_probe()
148         Command::new(rustc)  in compile_probe()
184     let rustc = cargo_env_var("RUSTC");  in rustc_minor_version()  localVariable
185     let output = Command::new(rustc).arg("--version").output().ok()?;  in rustc_minor_version()
188     if pieces.next() != Some("rustc 1") {  in rustc_minor_version()