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01da29a398
The build.rs file will be compiled for the host platform and cfg() flags will reflect those of the host platform and not of the build target. Use CARGO_CFG_ environment variables instead. BUG=b:240593511 TEST=CQ Change-Id: Ib8b6c8e8bfb44ad83212bb2aa40a17a4e16a4adf Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4518569 Commit-Queue: Dennis Kempin <denniskempin@google.com> Reviewed-by: Vikram Auradkar <auradkar@google.com>
32 lines
1.4 KiB
Rust
32 lines
1.4 KiB
Rust
// Copyright 2020 The ChromiumOS Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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static PREBUILTS_VERSION_FILENAME: &str = "prebuilts_version";
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static SLIRP_LIB: &str = "libslirp.lib";
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static SLIRP_DLL: &str = "libslirp-0.dll";
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static GLIB_FILENAME: &str = "libglib-2.0.dll.a";
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fn main() {
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// We (the Windows crosvm maintainers) submitted upstream patches to libslirp-sys so it doesn't
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// try to link directly on Windows. This is because linking on Windows tends to be specific
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// to the build system that invokes Cargo (e.g. the crosvm jCI scripts that also produce the
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// required libslirp DLL & lib). The integration here (win_slirp::main) is specific to crosvm's
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// build process.
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if std::env::var("CARGO_CFG_WINDOWS").is_ok() {
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let version = std::fs::read_to_string(PREBUILTS_VERSION_FILENAME)
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.unwrap()
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.trim()
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.parse::<u32>()
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.unwrap();
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// TODO(b:242204245) build libslirp locally on windows from build.rs.
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let mut libs = vec![SLIRP_DLL, SLIRP_LIB];
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if std::env::var("CARGO_CFG_TARGET_ENV") == Ok("gnu".to_string()) {
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libs.push(GLIB_FILENAME);
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}
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prebuilts::download_prebuilts("libslirp", version, &libs).unwrap();
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}
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// For unix, libslirp-sys's build script will make the appropriate linking calls to pkg_config.
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}
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