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build.rs
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build.rs
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use std::io::Write;
fn link_dependencies() {
match std::env::var("CARGO_CFG_TARGET_OS").as_deref() {
Ok("linux" | "android") => println!("cargo:rustc-link-lib=dl"),
Ok("freebsd" | "dragonfly") => println!("cargo:rustc-link-lib=c"),
Ok("windows") => println!("cargo:rustc-link-lib=user32"),
Ok(_) => {}
Err(e) => {
writeln!(::std::io::stderr(), "Unable to get target_os=`{e}`!")
.expect("could not report the error");
::std::process::exit(0xfd);
}
}
}
fn set_feature_defines(mut c: cc::Build) -> cc::Build {
if std::env::var_os("CARGO_FEATURE_ENABLE").is_some() {
c.define("TRACY_ENABLE", None);
}
if std::env::var_os("CARGO_FEATURE_TIMER_FALLBACK").is_some() {
c.define("TRACY_TIMER_FALLBACK", None);
}
if std::env::var_os("CARGO_FEATURE_ONDEMAND").is_some() {
c.define("TRACY_ON_DEMAND", None);
}
if std::env::var_os("CARGO_FEATURE_ONLY_LOCALHOST").is_some() {
c.define("TRACY_ONLY_LOCALHOST", None);
}
if std::env::var_os("CARGO_FEATURE_ONLY_IPV4").is_some() {
c.define("TRACY_ONLY_IPV4", None);
}
if std::env::var_os("CARGO_FEATURE_FIBERS").is_some() {
c.define("TRACY_FIBERS", None);
}
if std::env::var_os("CARGO_FEATURE_MANUAL_LIFETIME").is_some() {
c.define("TRACY_MANUAL_LIFETIME", None);
}
if std::env::var_os("CARGO_FEATURE_DELAYED_INIT").is_some() {
c.define("TRACY_DELAYED_INIT", None);
}
if std::env::var_os("CARGO_FEATURE_FLUSH_ON_EXIT").is_some() {
c.define("TRACY_NO_EXIT", None);
}
// Note: these are inversed and check for `is_none`!
if std::env::var_os("CARGO_FEATURE_SYSTEM_TRACING").is_none() {
c.define("TRACY_NO_SYSTEM_TRACING", None);
}
if std::env::var_os("CARGO_FEATURE_CONTEXT_SWITCH_TRACING").is_none() {
c.define("TRACY_NO_CONTEXT_SWITCH", None);
}
if std::env::var_os("CARGO_FEATURE_SAMPLING").is_none() {
c.define("TRACY_NO_SAMPLING", None);
}
if std::env::var_os("CARGO_FEATURE_CODE_TRANSFER").is_none() {
c.define("TRACY_NO_CODE_TRANSFER", None);
}
if std::env::var_os("CARGO_FEATURE_BROADCAST").is_none() {
c.define("TRACY_NO_BROADCAST", None);
}
if std::env::var_os("CARGO_FEATURE_CALLSTACK_INLINES").is_none() {
c.define("TRACY_NO_CALLSTACK_INLINES", None);
}
c
}
fn build_tracy_client() {
if std::env::var_os("CARGO_FEATURE_ENABLE").is_some() {
let mut builder = set_feature_defines(cc::Build::new());
let _ = builder
.file("tracy/TracyClient.cpp")
.warnings(false)
.cpp(true);
if let Ok(tool) = builder.try_get_compiler() {
if tool.is_like_gnu() || tool.is_like_clang() {
// https://github.com/rust-lang/cc-rs/issues/855
builder.flag("-std=c++11");
}
}
let _ = builder.try_flags_from_environment("TRACY_CLIENT_SYS_CXXFLAGS");
builder.compile("libtracy-client.a");
link_dependencies();
}
}
fn main() {
if let Ok(lib) = std::env::var("TRACY_CLIENT_LIB") {
if let Ok(lib_path) = std::env::var("TRACY_CLIENT_LIB_PATH") {
println!("cargo:rustc-link-search=native={lib_path}");
}
let kind = std::env::var_os("TRACY_CLIENT_STATIC");
let mode = if kind.is_none() || kind.as_deref() == Some(std::ffi::OsStr::new("0")) {
"dylib"
} else {
link_dependencies();
"static"
};
println!("cargo:rustc-link-lib={mode}={lib}");
} else {
build_tracy_client();
}
}