fn main() {
println!("cargo:rerun-if-changed=build.rs");
- let target = env::var("TARGET").expect("TARGET was not set");
+ println!("cargo:rerun-if-env-changed=CARGO_CFG_MIRI");
+
+ if env::var_os("CARGO_CFG_MIRI").is_some() {
+ // Miri doesn't need the linker flags or a libunwind build.
+ return;
+ }
+ let target = env::var("TARGET").expect("TARGET was not set");
if target.contains("android") {
let build = cc::Build::new();
let has_unwind = build.is_flag_supported("-lunwind").expect("Unable to invoke compiler");
if has_unwind {
- println!("cargo:rustc-link-lib=unwind");
- } else {
- println!("cargo:rustc-link-lib=gcc");
+ println!("cargo:rustc-cfg=feature=\"system-llvm-libunwind\"");
}
-
- // Android's unwinding library depends on dl_iterate_phdr in `libdl`.
- println!("cargo:rustc-link-lib=dl");
} else if target.contains("freebsd") {
println!("cargo:rustc-link-lib=gcc_s");
} else if target.contains("netbsd") {