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extern crate cc;
use std::env;
use std::path::PathBuf;
fn main() {
// Set cfg flags depending on release channel
if NIGHTLY {
println!("cargo:rustc-cfg=nightly");
}
// for the stable build asm lib
let target: String = env::var("TARGET").unwrap();
let is_win_gnu = target.ends_with("windows-gnu");
let is_win_msvc = target.ends_with("windows-msvc");
let is_win = is_win_gnu || is_win_msvc;
let arch = match target.split('-').next().unwrap() {
// "arm" | "armv7" | "armv7s" => "arm",
"arm64" | "aarch64" => "aarch64",
// "x86" | "i386" | "i486" | "i586" | "i686" => "i386",
// "mips" | "mipsel" => "mips32",
// "powerpc" => "ppc32",
// "powerpc64" => "ppc64",
"loongarch64" => "loongarch64",
"x86_64" => "x86_64",
_ => {
panic!("Unsupported architecture: {}", target);
}
};
let abi = match arch {
"arm" | "aarch64" => "aapcs",
"mips32" => "o32",
_ => {
if is_win {
"ms"
} else {
"sysv"
}
}
};
let format = if is_win {
"pe"
} else if target.contains("apple") {
"macho"
} else if target.ends_with("aix") {
"xcoff"
} else {
"elf"
};
let (asm, ext) = if is_win_msvc {
if arch == "arm" {
("armasm", "asm")
} else {
("masm", "asm")
}
} else if is_win_gnu {
("gas", "asm")
} else {
("gas", "S")
};
let mut path: PathBuf = "src/detail/asm".into();
let mut config = cc::Build::new();
if is_win_gnu {
config.flag("-x").flag("assembler-with-cpp");
}
let file_name: [&str; 11] = ["asm", "_", arch, "_", abi, "_", format, "_", asm, ".", ext];
let file_name = file_name.concat();
path.push(file_name);
config.file(path.to_str().unwrap());
// create the static asm libary
config.compile("libasm.a");
println!("dh-cargo:deb-built-using=asm=0={}", env::var("CARGO_MANIFEST_DIR").unwrap());
}
#[rustversion::nightly]
const NIGHTLY: bool = true;
#[rustversion::not(nightly)]
const NIGHTLY: bool = false;
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