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use std::env;
fn main() -> miette::Result<()> {
if cfg!(feature = "bundled") {
// Builds the project in the directory located in `core`, installing it into $OUT_DIR
let mut dst = cmake::Config::new("core")
.define("BUILD_SHARED_LIBS", "OFF")
.define("ZXING_READERS", "ON")
.define("ZXING_WRITERS", "ON")
.define("ZXING_EXPERIMENTAL_API", "OFF")
.define("ZXING_C_API", "ON")
.define("ZXING_USE_BUNDLED_ZINT", "ON")
.build();
dst.push("lib");
println!("cargo:rustc-link-search=native={}", dst.display());
println!("cargo:rustc-link-lib=static=ZXing");
if let Ok(target) = env::var("TARGET") {
if target.contains("apple") {
println!("cargo:rustc-link-lib=dylib=c++");
} else if target.contains("linux") {
println!("cargo:rustc-link-lib=dylib=stdc++");
}
}
} else if let Ok(lib_dir) = env::var("ZXING_CPP_LIB_DIR") {
println!("cargo:rustc-link-search=native={lib_dir}");
println!("cargo:rustc-link-lib=dylib=ZXing");
} else {
// panic!("ZXing library not found. Use feature 'bundled' or set environment variabale ZXING_CPP_LIB_DIR.")
}
// manual bindings.rs generation:
// bindgen core/src/ZXingC.h -o src/bindings.rs --no-prepend-enum-name --merge-extern-blocks --use-core --no-doc-comments --no-layout-tests --with-derive-partialeq --allowlist-item "ZXing.*" -- -Itarget/release/build/zxing-cpp-*/out/include
// replace enum decimal constants with hexadecimal ones for better readability
// perl -0777 -i -pe 's/(pub const (?:ZXing_(?:Barcode|Image)Format_\w+: ZXing_(?:Barcode|Image)Format) = )(\d+);/$1 . sprintf("0x%04X;", $2)/ge' src/bindings.rs
Ok(())
}