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Provide DEP_URING_INCLUDE directory for other crates #30

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Provide DEP_URING_INCLUDE directory for other crates #30

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18 changes: 10 additions & 8 deletions build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,33 +8,35 @@ use cc::Build;
fn main() {
let project = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap()).canonicalize().unwrap();
let liburing = project.join("liburing");
let src = liburing.join("src");

// Run the configure script in OUT_DIR to get `compat.h`
let configured_include = configure(&liburing);

let src = liburing.join("src");
let include = configure(&liburing);

// liburing
Build::new().file(src.join("setup.c"))
.file(src.join("queue.c"))
.file(src.join("syscall.c"))
.file(src.join("register.c"))
.include(src.join("include"))
.include(&configured_include)
.include(&include)
.extra_warnings(false)
.compile("uring");

// (our additional, linkable C bindings)
Build::new().file(project.join("rusturing.c"))
.include(src.join("include"))
.include(&configured_include)
.include(&include)
.compile("rusturing");

println!("cargo:include={}", include.display());
}

fn configure(liburing: &Path) -> PathBuf {
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap()).canonicalize().unwrap();
fs::copy(liburing.join("configure"), out_dir.join("configure")).unwrap();
fs::create_dir_all(out_dir.join("src/include/liburing")).unwrap();
fs::copy(liburing.join("configure"), out_dir.join("configure")).unwrap();
fs::copy(liburing.join("src/include/liburing.h"), out_dir.join("src/include/liburing.h")).unwrap();
fs::copy(liburing.join("src/include/liburing/barrier.h"), out_dir.join("src/include/liburing/barrier.h")).unwrap();
fs::copy(liburing.join("src/include/liburing/io_uring.h"), out_dir.join("src/include/liburing/io_uring.h")).unwrap();
Command::new("./configure").current_dir(&out_dir).output().expect("configure script failed");
out_dir.join("src/include")
}