logos-blockchain/logos-blockchain-rust-rapidsnark
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Refactor build.rs and add flag to force static linking on rapidsnark.

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This commit is contained in:
Alejandro Cabeza Romero 2026-06-05 18:02:49 +02:00
parent 0c2f6b5ce6
commit 6afc55339f
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2 changed files with 28 additions and 22 deletions
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4
crates/Cargo.toml
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@ -10,6 +10,10 @@ description = "Rust wrapper for the Rapidsnark proof system"
[lib]
[features]
# Link rapidsnark statically (not the dependencies)
static-rapidsnark = []
[dependencies]
anyhow = "1.0.95"
num-bigint = "0.4.6"

46
crates/build.rs
View File

@ -45,29 +45,31 @@ fn main() {
"stdc++"
};
println!(
"cargo:rustc-link-search=native={}",
absolute_lib_path.clone().display()
);
println!("cargo:rustc-link-search=native={}", absolute_lib_path.display());
let should_link_static = is_static_rapidsnark() || is_mobile_target();
let link_mode = if should_link_static { "static" } else { "dylib" };
println!("cargo:rustc-link-lib={link_mode}=rapidsnark");
println!("cargo:rustc-link-lib={link_mode}=fr");
println!("cargo:rustc-link-lib={link_mode}=fq");
println!("cargo:rustc-link-lib={link_mode}=gmp");
println!("cargo:rustc-link-lib=static=rapidsnark");
println!("cargo:rustc-link-lib={cpp_stdlib}");
if target.contains("android") {
// pthread is included in libc in android
println!("cargo:rustc-link-lib=c");
} else {
println!("cargo:rustc-link-lib=pthread");
}
println!("cargo:rustc-link-lib=static=fr");
println!("cargo:rustc-link-lib=static=fq");
println!("cargo:rustc-link-lib=static=gmp");
if !(env::var("CARGO_CFG_TARGET_OS").unwrap().contains("ios")
|| env::var("CARGO_CFG_TARGET_OS").unwrap().contains("android"))
{
println!("cargo:rustc-link-lib=dylib=rapidsnark");
println!("cargo:rustc-link-lib=dylib=fr");
println!("cargo:rustc-link-lib=dylib=fq");
println!("cargo:rustc-link-lib=dylib=gmp");
}
// Android bundles pthread into libc
let thread_lib = if is_android_target() { "c" } else { "pthread" };
println!("cargo:rustc-link-lib={thread_lib}");
}
fn is_static_rapidsnark() -> bool {
env::var_os("CARGO_FEATURE_STATIC_RAPIDSNARK").is_some()
}
fn is_mobile_target() -> bool {
let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap();
target_os.contains("ios") || target_os.contains("android")
}
fn is_android_target() -> bool {
env::var("CARGO_CFG_TARGET_OS").unwrap().contains("android")
}