82 lines
2.5 KiB
Rust
82 lines
2.5 KiB
Rust
#[cfg(feature = "libsnark")]
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extern crate cc;
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#[cfg(feature = "libsnark")]
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extern crate cmake;
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#[cfg(feature = "libsnark")]
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extern crate git2;
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fn main() {
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#[cfg(feature = "libsnark")]
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{
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use git2::{Oid, Repository, ResetType};
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use std::env;
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use std::fs::remove_dir;
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use std::path::PathBuf;
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// fetch libsnark source
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const LIBSNARK_URL: &'static str = "https://github.com/scipr-lab/libsnark.git";
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const LIBSNARK_COMMIT: &'static str = "f7c87b88744ecfd008126d415494d9b34c4c1b20";
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let libsnark_source_path = &PathBuf::from(env::var("OUT_DIR").unwrap()).join("LIBSNARK");
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let repo = Repository::open(libsnark_source_path).unwrap_or_else(|_| {
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remove_dir(libsnark_source_path).ok();
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Repository::clone(LIBSNARK_URL, libsnark_source_path).unwrap()
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});
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let commit = Oid::from_str(LIBSNARK_COMMIT).unwrap();
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let commit = repo.find_commit(commit).unwrap();
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repo.reset(&commit.as_object(), ResetType::Hard, None)
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.unwrap();
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for mut s in repo.submodules().unwrap() {
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s.update(true, None).unwrap();
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}
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// build libsnark
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let libsnark = cmake::Config::new(libsnark_source_path)
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.define("WITH_PROCPS", "OFF")
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.define("CURVE", "ALT_BN128")
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.define("USE_PT_COMPRESSION", "OFF")
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.define("MONTGOMERY_OUTPUT", "ON")
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.define("BINARY_OUTPUT", "ON")
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.build();
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// build backends
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cc::Build::new()
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.cpp(true)
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.debug(cfg!(debug_assertions))
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.flag("-std=c++11")
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.include(libsnark_source_path)
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.include(libsnark_source_path.join("depends/libff"))
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.include(libsnark_source_path.join("depends/libfqfft"))
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.define("CURVE_ALT_BN128", None)
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.file("lib/util.cpp")
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.file("lib/gm17.cpp")
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.file("lib/pghr13.cpp")
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.compile("libwraplibsnark.a");
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println!(
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"cargo:rustc-link-search=native={}",
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libsnark.join("lib").display()
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);
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println!("cargo:rustc-link-lib=gmp");
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println!("cargo:rustc-link-lib=gmpxx");
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#[cfg(debug_assertions)]
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{
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println!("cargo:rustc-link-lib=static=snarkd");
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println!("cargo:rustc-link-lib=static=ffd");
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}
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#[cfg(not(debug_assertions))]
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{
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println!("cargo:rustc-link-lib=static=snark");
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println!("cargo:rustc-link-lib=static=ff");
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}
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}
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}
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