Merge pull request #177 from xch-dev/x64-fix

Fix Android x64

Cargo.toml

@@ -104,6 +104,7 @@ once_cell = "1.19.0"
 num-traits = "0.2.19"
 paste = "1.0.15"
 chrono = "0.4.38"
+glob = "0.3.1"
 
 # Tracing
 tracing = "0.1.40"

src-tauri/Cargo.toml

@@ -39,6 +39,7 @@ aws-lc-rs = { version = "1", features = ["bindgen"] }
 
 [build-dependencies]
 tauri-build = { workspace = true, features = [] }
+glob = { workspace = true }
 
 [package.metadata.cargo-machete]
 ignored = ["serde_json", "aws-lc-rs"]

src-tauri/build.rs

@@ -1,3 +1,36 @@
+use glob::glob;
+use std::env;
+
+/// Adds a temporary workaround for an issue with the Rust compiler and Android
+/// in `x86_64` devices: <https://github.com/rust-lang/rust/issues/109717>.
+/// The workaround comes from: <https://github.com/smartvaults/smartvaults/blob/827805a989561b78c0ea5b41f2c1c9e9e59545e0/bindings/smartvaults-sdk-ffi/build.rs>
+fn setup_x86_64_android_workaround() {
+    let target_os = env::var("CARGO_CFG_TARGET_OS").expect("CARGO_CFG_TARGET_OS not set");
+    let target_arch = env::var("CARGO_CFG_TARGET_ARCH").expect("CARGO_CFG_TARGET_ARCH not set");
+    if target_arch == "x86_64" && target_os == "android" {
+        let android_ndk_home = env::var("ANDROID_NDK_HOME").expect("ANDROID_NDK_HOME not set");
+        let build_os = match env::consts::OS {
+            "linux" => "linux",
+            "macos" => "darwin",
+            "windows" => "windows",
+            _ => panic!(
+                "Unsupported OS. You must use either Linux, MacOS or Windows to build the crate."
+            ),
+        };
+        let linux_x86_64_lib_pattern = format!(
+            "{android_ndk_home}/toolchains/llvm/prebuilt/{build_os}-x86_64/lib*/clang/**/lib/linux/"
+        );
+        match glob(&linux_x86_64_lib_pattern).expect("glob failed").last() {
+            Some(Ok(path)) => {
+                println!("cargo:rustc-link-search={}", path.to_string_lossy());
+                println!("cargo:rustc-link-lib=static=clang_rt.builtins-x86_64-android");    
+            },
+            _ => panic!("Path not found: {linux_x86_64_lib_pattern}. Try setting a different ANDROID_NDK_HOME."),
+        }
+    }
+}
+
 fn main() {
+    setup_x86_64_android_workaround();
     tauri_build::build();
 }