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build.rs
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build.rs
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extern crate bindgen;
use bindgen::callbacks::{MacroParsingBehavior, ParseCallbacks};
use std::collections::HashSet;
use std::env;
use std::path::PathBuf;
use std::sync::{Arc, RwLock};
#[derive(Debug)]
struct MacroCallback {
macros: Arc<RwLock<HashSet<String>>>,
}
impl ParseCallbacks for MacroCallback {
fn will_parse_macro(&self, name: &str) -> MacroParsingBehavior {
self.macros.write().unwrap().insert(name.into());
match name {
"FP_NAN" => MacroParsingBehavior::Ignore,
"FP_INFINITE" => MacroParsingBehavior::Ignore,
"FP_ZERO" => MacroParsingBehavior::Ignore,
"FP_SUBNORMAL" => MacroParsingBehavior::Ignore,
"FP_NORMAL" => MacroParsingBehavior::Ignore,
_ => MacroParsingBehavior::Default,
}
}
}
macro_rules! cargo_cmake_feat {
($feature:literal) => {
if cfg!(feature = $feature) {
"ON"
} else {
"OFF"
}
};
}
macro_rules! cargo_link {
($feature:expr) => {
println!("cargo:rustc-link-lib={}", $feature);
};
}
fn main() {
let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap();
let target_family = env::var("CARGO_CFG_TARGET_FAMILY").unwrap();
// Build StereoKit, and tell rustc to link it.
let mut cmake_config = cmake::Config::new("StereoKit");
cmake_config.define("SK_BUILD_SHARED_LIBS", "OFF");
cmake_config.define("SK_BUILD_TESTS", "OFF");
cmake_config.define("SK_LINUX_EGL", cargo_cmake_feat!("linux-egl"));
cmake_config.define("SK_PHYSICS", cargo_cmake_feat!("physics")); // cannot get this to work on windows.
if target_os == "android" {
cmake_config.define("CMAKE_ANDROID_API", "25");
//cmake_config.define("ANDROID", "TRUE");
}
let dst = cmake_config.build();
println!("cargo:rustc-link-search=native={}/lib", dst.display());
println!("cargo:rustc-link-search=native={}/lib64", dst.display());
cargo_link!("static=StereoKitC");
match target_family.as_str() {
"windows" => {
if cfg!(debug_assertions) {
cargo_link!("static=openxr_loaderd");
} else {
cargo_link!("static=openxr_loader");
}
cargo_link!("windowsapp");
cargo_link!("user32");
cargo_link!("comdlg32");
println!("cargo:rustc-link-search=native={}", dst.display());
if cfg!(feature = "physics") {
println!("cargo:rustc-link-lib=static=build/_deps/reactphysics3d-build/Debug/reactphysics3d");
}
//cargo_link!("static=reactphysics3d");
}
"wasm" => {
unimplemented!("sorry wasm isn't implemented yet");
}
"unix" => {
if target_os == "macos" {
panic!("Sorry, macos is not supported for stereokit.");
}
cargo_link!("stdc++");
cargo_link!("openxr_loader");
if target_os == "android" {
cargo_link!("android");
cargo_link!("EGL");
} else {
cargo_link!("X11");
cargo_link!("Xfixes");
cargo_link!("GL");
if cfg!(feature = "linux-egl") {
cargo_link!("EGL");
cargo_link!("gbm");
} else {
cargo_link!("GLEW");
cargo_link!("GLX");
}
cargo_link!("fontconfig");
}
}
_ => {
panic!("target family is unknown");
}
}
// Tell cargo to invalidate the built crate whenever the wrapper changes
println!("cargo:rerun-if-changed=src/static-wrapper.h");
println!("cargo:rerun-if-changed=StereoKit/StereoKitC/stereokit.h");
println!("cargo:rerun-if-changed=StereoKit/StereoKitC/stereokit_ui.h");
// On Android, we must ensure that we're dynamically linking against the C++ standard library.
// For more details, see https://github.com/rust-windowing/android-ndk-rs/issues/167
use std::env::var;
if var("TARGET")
.map(|target| target == "aarch64-linux-android")
.unwrap_or(false)
{
// panic!("YO");
println!("cargo:rustc-link-lib=dylib=c++");
}
// Generate bindings to StereoKitC.
let macros = Arc::new(RwLock::new(HashSet::new()));
let bindings = bindgen::Builder::default()
.header("src/static-wrapper.h")
.blocklist_type("color128")
.blocklist_type("color32")
.blocklist_type("FP_NAN")
.blocklist_type("FP_INFINITE")
.blocklist_type("FP_ZERO")
.blocklist_type("FP_SUBNORMAL")
.blocklist_type("FP_NORMAL")
.blocklist_function("_.*")
// Blocklist functions with u128 in signature.
// https://github.com/zmwangx/rust-ffmpeg-sys/issues/1
// https://github.com/rust-lang/rust-bindgen/issues/1549
.blocklist_function("acoshl")
.blocklist_function("acosl")
.blocklist_function("asinhl")
.blocklist_function("asinl")
.blocklist_function("atan2l")
.blocklist_function("atanhl")
.blocklist_function("atanl")
.blocklist_function("cbrtl")
.blocklist_function("ceill")
.blocklist_function("copysignl")
.blocklist_function("coshl")
.blocklist_function("cosl")
.blocklist_function("dreml")
.blocklist_function("ecvt_r")
.blocklist_function("erfcl")
.blocklist_function("erfl")
.blocklist_function("exp2l")
.blocklist_function("expl")
.blocklist_function("expm1l")
.blocklist_function("fabsl")
.blocklist_function("fcvt_r")
.blocklist_function("fdiml")
.blocklist_function("finitel")
.blocklist_function("floorl")
.blocklist_function("fmal")
.blocklist_function("fmaxl")
.blocklist_function("fminl")
.blocklist_function("fmodl")
.blocklist_function("frexpl")
.blocklist_function("gammal")
.blocklist_function("hypotl")
.blocklist_function("ilogbl")
.blocklist_function("isinfl")
.blocklist_function("isnanl")
.blocklist_function("j0l")
.blocklist_function("j1l")
.blocklist_function("jnl")
.blocklist_function("ldexpl")
.blocklist_function("lgammal")
.blocklist_function("lgammal_r")
.blocklist_function("llrintl")
.blocklist_function("llroundl")
.blocklist_function("log10l")
.blocklist_function("log1pl")
.blocklist_function("log2l")
.blocklist_function("logbl")
.blocklist_function("logl")
.blocklist_function("lrintl")
.blocklist_function("lroundl")
.blocklist_function("modfl")
.blocklist_function("nanl")
.blocklist_function("nearbyintl")
.blocklist_function("nextafterl")
.blocklist_function("nexttoward")
.blocklist_function("nexttowardf")
.blocklist_function("nexttowardl")
.blocklist_function("powl")
.blocklist_function("qecvt")
.blocklist_function("qecvt_r")
.blocklist_function("qfcvt")
.blocklist_function("qfcvt_r")
.blocklist_function("qgcvt")
.blocklist_function("remainderl")
.blocklist_function("remquol")
.blocklist_function("rintl")
.blocklist_function("roundl")
.blocklist_function("scalbl")
.blocklist_function("scalblnl")
.blocklist_function("scalbnl")
.blocklist_function("significandl")
.blocklist_function("sinhl")
.blocklist_function("sinl")
.blocklist_function("sqrtl")
.blocklist_function("strtold")
.blocklist_function("tanhl")
.blocklist_function("tanl")
.blocklist_function("tgammal")
.blocklist_function("truncl")
.blocklist_function("y0l")
.blocklist_function("y1l")
.blocklist_function("ynl")
.blocklist_function("model_node_info_get") // see the binding in lib.rs
.parse_callbacks(Box::new(MacroCallback { macros }))
.generate()
.expect("Unable to generate bindings");
// Write the bindings to the $OUT_DIR/bindings.rs file.
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}