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dfa972e454
New compiler configuration has been introduced that is designed to replace the build script configuration `reliable_f16`, `reliable_f128`, `reliable_f16_math`, and `reliable_f128_math`. Do this replacement here, which allows us to clean up `std`'s build script. All tests are gated by `#[cfg(bootstrap)]` rather than doing a more complicated `cfg(bootstrap)` / `cfg(not(bootstrap))` split since the next beta split is within two weeks.
78 lines
2.8 KiB
Rust
78 lines
2.8 KiB
Rust
use std::env;
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fn main() {
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println!("cargo:rerun-if-changed=build.rs");
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let target_arch = env::var("CARGO_CFG_TARGET_ARCH").expect("CARGO_CFG_TARGET_ARCH was not set");
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let target_os = env::var("CARGO_CFG_TARGET_OS").expect("CARGO_CFG_TARGET_OS was not set");
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let target_vendor =
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env::var("CARGO_CFG_TARGET_VENDOR").expect("CARGO_CFG_TARGET_VENDOR was not set");
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let target_env = env::var("CARGO_CFG_TARGET_ENV").expect("CARGO_CFG_TARGET_ENV was not set");
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println!("cargo:rustc-check-cfg=cfg(netbsd10)");
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if target_os == "netbsd" && env::var("RUSTC_STD_NETBSD10").is_ok() {
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println!("cargo:rustc-cfg=netbsd10");
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}
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println!("cargo:rustc-check-cfg=cfg(restricted_std)");
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if target_os == "linux"
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|| target_os == "android"
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|| target_os == "netbsd"
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|| target_os == "dragonfly"
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|| target_os == "openbsd"
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|| target_os == "freebsd"
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|| target_os == "solaris"
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|| target_os == "illumos"
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|| target_os == "macos"
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|| target_os == "ios"
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|| target_os == "tvos"
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|| target_os == "watchos"
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|| target_os == "visionos"
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|| target_os == "windows"
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|| target_os == "fuchsia"
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|| (target_vendor == "fortanix" && target_env == "sgx")
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|| target_os == "hermit"
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|| target_os == "trusty"
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|| target_os == "l4re"
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|| target_os == "redox"
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|| target_os == "haiku"
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|| target_os == "vxworks"
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|| target_arch == "wasm32"
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|| target_arch == "wasm64"
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|| target_os == "espidf"
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|| target_os.starts_with("solid")
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|| (target_vendor == "nintendo" && target_env == "newlib")
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|| target_os == "vita"
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|| target_os == "aix"
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|| target_os == "nto"
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|| target_os == "xous"
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|| target_os == "hurd"
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|| target_os == "uefi"
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|| target_os == "teeos"
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|| target_os == "zkvm"
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|| target_os == "rtems"
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|| target_os == "nuttx"
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|| target_os == "cygwin"
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// See src/bootstrap/src/core/build_steps/synthetic_targets.rs
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|| env::var("RUSTC_BOOTSTRAP_SYNTHETIC_TARGET").is_ok()
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{
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// These platforms don't have any special requirements.
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} else {
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// This is for Cargo's build-std support, to mark std as unstable for
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// typically no_std platforms.
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// This covers:
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// - os=none ("bare metal" targets)
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// - mipsel-sony-psp
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// - nvptx64-nvidia-cuda
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// - arch=avr
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// - JSON targets
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// - Any new targets that have not been explicitly added above.
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println!("cargo:rustc-cfg=restricted_std");
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}
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println!("cargo:rustc-check-cfg=cfg(backtrace_in_libstd)");
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println!("cargo:rustc-cfg=backtrace_in_libstd");
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println!("cargo:rustc-env=STD_ENV_ARCH={}", env::var("CARGO_CFG_TARGET_ARCH").unwrap());
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}
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