Split libsnark interactions into subcrate

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "libsnark"]
-	path = libsnark
+[submodule "snark/libsnark"]
+	path = snark/libsnark
 	url = https://github.com/zcash/libsnark.git

Cargo.lock

@@ -2,9 +2,7 @@
 name = "mpc"
 version = "0.0.1"
 dependencies = [
- "gcc 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mpc_snark 0.0.1",
 ]
 
 [[package]]
@@ -22,3 +20,12 @@ name = "libc"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "mpc_snark"
+version = "0.0.1"
+dependencies = [
+ "gcc 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+

Cargo.toml

@@ -9,11 +9,5 @@ authors = [
 license = "MIT OR Apache-2.0"
 readme = "README.md"
 
-build = "src/build.rs"
-
-[build-dependencies]
-gcc = "0.3.*"
-
 [dependencies]
-libc = "0.2.*"
-lazy_static = "0.1.*"
+mpc_snark = { path = "./snark/" }

snark/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "mpc_snark"
+version = "0.0.1"
+authors = [
+	"Sean Bowe <ewillbefull@gmail.com>",
+	"Ariel Gabizon <ariel@z.cash>",
+	"Matthew Green <mgreen@cs.jhu.edu>"
+]
+license = "MIT OR Apache-2.0"
+
+build = "src/build.rs"
+
+[build-dependencies]
+gcc = "0.3.*"
+
+[dependencies]
+libc = "0.2.*"
+lazy_static = "0.1.*"

src/main.rs

@@ -0,0 +1,7 @@
+extern crate mpc_snark;
+
+use mpc_snark::*;
+
+fn main() {
+	initialize();
+}