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extern crate rustc_version;
use rustc_version::{version, version_meta, Channel};
fn build_tramp()
{
let mut builder = cc::Build::new();
// --std=c99 -W -Wall -Werror -pedantic -O3 -flto
builder.flag("--std=c99")
.flag("-W")
.flag("-Wall")
.flag_if_supported("-Wextra")
.flag("-Werror")
.flag("-pedantic")
.opt_level(3)
.flag_if_supported("-flto")
// Not sure if we want these two. We can check the codegen later.
// .pic(false)
.use_plt(false)
.file("alloca_trampoline_.c")
.compile("calloca_trampoline");
}
fn main() {
// Assert we haven't travelled back in time
assert!(version().unwrap().major >= 1);
// Set cfg flags depending on release channel
match version_meta().unwrap().channel {
Channel::Stable => {
println!("cargo:rustc-cfg=stable");
}
Channel::Beta => {
println!("cargo:rustc-cfg=beta");
}
Channel::Nightly => {
println!("cargo:rustc-cfg=nightly");
}
Channel::Dev => {
println!("cargo:rustc-cfg=dev");
}
}
build_tramp();
}