622fdee51f
Previous fix linked c++_static but not c++abi. Android NDK splits the static C++ runtime into two archives: libc++_static.a (STL) and libc++abi.a (RTTI/exceptions). Without c++abi, dlopen fails on _ZTVN10__cxxabiv117__class_type_infoE. Now using cpp_link_stdlib(None) to suppress cc crate auto-linking, then explicitly linking both c++_static and c++abi via cargo:rustc-link-lib. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
85 lines
2.8 KiB
Rust
85 lines
2.8 KiB
Rust
use std::path::PathBuf;
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fn main() {
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let target = std::env::var("TARGET").unwrap_or_default();
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if target.contains("android") {
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// On Android, try to build with Oboe. If Oboe is not available,
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// fall back to the stub (audio will need to be provided via JNI).
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let oboe_dir = fetch_oboe();
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match oboe_dir {
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Some(oboe_path) => {
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println!("cargo:warning=Building with Oboe from {:?}", oboe_path);
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cc::Build::new()
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.cpp(true)
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.std("c++17")
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.cpp_link_stdlib(None)
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.file("cpp/oboe_bridge.cpp")
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.include("cpp")
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.include(oboe_path.join("include"))
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.define("WZP_HAS_OBOE", None)
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.compile("oboe_bridge");
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}
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None => {
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println!("cargo:warning=Oboe not found, building with stub");
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cc::Build::new()
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.cpp(true)
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.std("c++17")
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.cpp_link_stdlib(None)
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.file("cpp/oboe_stub.cpp")
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.include("cpp")
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.compile("oboe_bridge");
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}
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}
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// Android NDK splits the static C++ runtime into two archives:
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// libc++_static.a — STL (containers, strings, algorithms)
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// libc++abi.a — ABI (RTTI, exceptions, typeinfo vtables)
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// Both are required; cc crate's cpp_link_stdlib only handles the first.
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println!("cargo:rustc-link-lib=static=c++_static");
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println!("cargo:rustc-link-lib=static=c++abi");
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} else {
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// Non-Android: always use stub
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cc::Build::new()
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.cpp(true)
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.std("c++17")
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.file("cpp/oboe_stub.cpp")
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.include("cpp")
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.compile("oboe_bridge");
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}
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}
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/// Try to find or fetch Oboe headers.
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/// Returns the path to the Oboe source root (containing include/ directory).
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fn fetch_oboe() -> Option<PathBuf> {
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let out_dir = PathBuf::from(std::env::var("OUT_DIR").unwrap());
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let oboe_dir = out_dir.join("oboe");
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// Check if already fetched
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if oboe_dir.join("include").join("oboe").join("Oboe.h").exists() {
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return Some(oboe_dir);
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}
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// Try to clone Oboe from GitHub
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let status = std::process::Command::new("git")
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.args([
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"clone",
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"--depth=1",
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"--branch=1.8.1",
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"https://github.com/google/oboe.git",
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oboe_dir.to_str().unwrap(),
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])
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.status();
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match status {
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Ok(s) if s.success() => {
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if oboe_dir.join("include").join("oboe").join("Oboe.h").exists() {
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Some(oboe_dir)
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} else {
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None
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}
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}
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_ => None,
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}
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}
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