tauri/core/tauri-build/src/static_vcruntime.rs

59 lines
2.3 KiB
Rust

// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT
// taken from https://github.com/ChrisDenton/static_vcruntime/
// we're not using static_vcruntime directly because we want this for debug builds too
use std::{env, fs, io::Write, path::Path};
pub fn build() {
override_msvcrt_lib();
// Disable conflicting libraries that aren't hard coded by Rust
println!("cargo:rustc-link-arg=/NODEFAULTLIB:libvcruntimed.lib");
println!("cargo:rustc-link-arg=/NODEFAULTLIB:vcruntime.lib");
println!("cargo:rustc-link-arg=/NODEFAULTLIB:vcruntimed.lib");
println!("cargo:rustc-link-arg=/NODEFAULTLIB:libcmtd.lib");
println!("cargo:rustc-link-arg=/NODEFAULTLIB:msvcrt.lib");
println!("cargo:rustc-link-arg=/NODEFAULTLIB:msvcrtd.lib");
println!("cargo:rustc-link-arg=/NODEFAULTLIB:libucrt.lib");
println!("cargo:rustc-link-arg=/NODEFAULTLIB:libucrtd.lib");
// Set the libraries we want.
println!("cargo:rustc-link-arg=/DEFAULTLIB:libcmt.lib");
println!("cargo:rustc-link-arg=/DEFAULTLIB:libvcruntime.lib");
println!("cargo:rustc-link-arg=/DEFAULTLIB:ucrt.lib");
}
/// Override the hard-coded msvcrt.lib by replacing it with a (mostly) empty object file.
fn override_msvcrt_lib() {
// Get the right machine type for the empty library.
let arch = std::env::var("CARGO_CFG_TARGET_ARCH");
let machine: &[u8] = if arch.as_deref() == Ok("x86_64") {
&[0x64, 0x86]
} else if arch.as_deref() == Ok("x86") {
&[0x4C, 0x01]
} else {
return;
};
let bytes: &[u8] = &[
1, 0, 94, 3, 96, 98, 60, 0, 0, 0, 1, 0, 0, 0, 0, 0, 132, 1, 46, 100, 114, 101, 99, 116, 118,
101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 60, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
10, 16, 0, 46, 100, 114, 101, 99, 116, 118, 101, 0, 0, 0, 0, 1, 0, 0, 0, 3, 0, 4, 0, 0, 0,
];
// Write the empty "msvcrt.lib" to the output directory.
let out_dir = env::var("OUT_DIR").unwrap();
let path = Path::new(&out_dir).join("msvcrt.lib");
let f = fs::OpenOptions::new()
.write(true)
.create_new(true)
.open(path);
if let Ok(mut f) = f {
f.write_all(machine).unwrap();
f.write_all(bytes).unwrap();
}
// Add the output directory to the native library path.
println!("cargo:rustc-link-search=native={out_dir}");
}