110 lines
3.8 KiB
Rust
110 lines
3.8 KiB
Rust
//! Build script for coolprop-sys.
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//!
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//! This compiles the CoolProp C++ library statically.
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//! Supports macOS, Linux, and Windows.
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use std::env;
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use std::path::PathBuf;
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fn coolprop_src_path() -> Option<PathBuf> {
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// Try to find CoolProp source in common locations
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let possible_paths = vec![
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// Vendor directory (recommended)
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PathBuf::from("../../vendor/coolprop")
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.canonicalize()
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.unwrap_or(PathBuf::from("../../../vendor/coolprop")),
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// External directory
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PathBuf::from("external/coolprop"),
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// System paths (Unix)
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PathBuf::from("/usr/local/src/CoolProp"),
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PathBuf::from("/opt/CoolProp"),
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];
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possible_paths
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.into_iter()
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.find(|path| path.join("CMakeLists.txt").exists())
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}
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fn main() {
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let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap_or_default();
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// Check if CoolProp source is available
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if let Some(coolprop_path) = coolprop_src_path() {
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println!("cargo:rerun-if-changed={}", coolprop_path.display());
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// Build CoolProp using CMake
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let dst = cmake::Config::new(&coolprop_path)
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.define("COOLPROP_SHARED_LIBRARY", "OFF")
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.define("COOLPROP_STATIC_LIBRARY", "ON")
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.define("COOLPROP_CATCH_TEST", "OFF")
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.define("COOLPROP_C_LIBRARY", "ON")
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.define("COOLPROP_MY_IFCO3_WRAPPER", "OFF")
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.build();
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println!("cargo:rustc-link-search=native={}/build", dst.display());
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println!("cargo:rustc-link-search=native={}/lib", dst.display());
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println!(
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"cargo:rustc-link-search=native={}/build",
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coolprop_path.display()
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); // Fallback
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// Link against CoolProp statically
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println!("cargo:rustc-link-lib=static=CoolProp");
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// On macOS, force load the static library so its symbols are exported in the final cdylib
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if target_os == "macos" {
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println!(
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"cargo:rustc-link-arg=-Wl,-force_load,{}/build/libCoolProp.a",
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dst.display()
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);
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}
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} else {
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println!(
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"cargo:warning=CoolProp source not found in vendor/. \
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For full static build, run: \
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git clone https://github.com/CoolProp/CoolProp.git vendor/coolprop"
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);
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// Fallback for system library
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if target_os == "windows" {
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// On Windows, try to find CoolProp as a system library
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println!("cargo:rustc-link-lib=CoolProp");
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} else {
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println!("cargo:rustc-link-lib=static=CoolProp");
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}
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}
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// Link required system libraries for C++ standard library
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match target_os.as_str() {
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"macos" => {
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println!("cargo:rustc-link-lib=dylib=c++");
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}
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"linux" | "freebsd" | "openbsd" | "netbsd" => {
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println!("cargo:rustc-link-lib=dylib=stdc++");
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}
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"windows" => {
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// MSVC links the C++ runtime automatically; nothing to do.
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// For MinGW, stdc++ is needed but MinGW is less common.
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}
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_ => {
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// Best guess for unknown Unix-like targets
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println!("cargo:rustc-link-lib=dylib=stdc++");
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}
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}
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// Link libm (only on Unix; on Windows it's part of the CRT)
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if target_os != "windows" {
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println!("cargo:rustc-link-lib=dylib=m");
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}
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// Force export symbols for Python extension (macOS only)
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if target_os == "macos" {
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println!("cargo:rustc-link-arg=-Wl,-all_load");
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}
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// Linux equivalent (only for shared library builds, e.g., Python wheels)
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// Note: --whole-archive must bracket the static lib; the linker handles this
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// automatically for Rust cdylib targets, so we don't need it here.
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// Tell Cargo to rerun if build.rs changes
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println!("cargo:rerun-if-changed=build.rs");
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}
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