servo/ports/servoshell/build.rs
Jonathan Schwender 19067366df
Fix cross-compiling servoshell on Mac hosts (#32504)
`#[cfg(target_os = "xxx")]` when used in build scripts checks which
platform the **build script** is compiled for - i.e. the Host OS.
Since ware interested in the actual target os, we need to read
`CARGO_CFG_TARGET_OS`, a value that is set at **runtime of the build
script**.

Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
2024-06-14 22:38:53 +00:00

63 lines
2.2 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use std::error::Error;
use std::path::Path;
use vergen::EmitBuilder;
fn main() -> Result<(), Box<dyn Error>> {
// Cargo does not expose the profile name to crates or their build scripts,
// but we can extract it from OUT_DIR and set a custom cfg() ourselves.
let out = std::env::var("OUT_DIR")?;
let out = Path::new(&out);
let krate = out.parent().unwrap();
let build = krate.parent().unwrap();
let profile = build.parent().unwrap();
if profile.file_name().unwrap() == "production" {
println!("cargo:rustc-cfg=servo_production");
} else {
println!("cargo:rustc-cfg=servo_do_not_use_in_production");
}
// Note: We can't use `#[cfg(windows)]`, since that would check the host platform
// and not the target platform
let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
if target_os == "windows" {
#[cfg(windows)]
{
let mut res = winres::WindowsResource::new();
res.set_icon("../../resources/servo.ico");
res.set_manifest_file("platform/windows/servo.exe.manifest");
res.compile().unwrap();
}
#[cfg(not(windows))]
panic!("Cross-compiling to windows is currently not supported");
} else if target_os == "macos" {
cc::Build::new()
.file("platform/macos/count_threads.c")
.compile("count_threads");
}
if let Err(error) = EmitBuilder::builder()
.fail_on_error()
.git_sha(true /* short */)
.emit()
{
println!(
"cargo:warning=Could not generate git version information: {:?}",
error
);
println!("cargo:rustc-env=VERGEN_GIT_SHA=nogit");
}
// On MacOS, all dylib dependencies are shipped along with the binary
// in the "/lib" directory. Setting the rpath here, allows the dynamic
// linker to locate them. See `man dyld` for more info.
if target_os == "macos" {
println!("cargo:rustc-link-arg=-Wl,-rpath,@executable_path/lib/");
}
Ok(())
}