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Optionally de-bundle libmdbx #2

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Optionally de-bundle libmdbx #2

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67 changes: 41 additions & 26 deletions mdbx-sys/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -51,32 +51,7 @@ impl ParseCallbacks for Callbacks {
}
}

fn main() {
let mut mdbx = PathBuf::from(&env::var("CARGO_MANIFEST_DIR").unwrap());
mdbx.push("libmdbx");

let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());

let bindings = bindgen::Builder::default()
.header(mdbx.join("mdbx.h").to_string_lossy())
.allowlist_var("^(MDBX|mdbx)_.*")
.allowlist_type("^(MDBX|mdbx)_.*")
.allowlist_function("^(MDBX|mdbx)_.*")
.size_t_is_usize(true)
.ctypes_prefix("::libc")
.parse_callbacks(Box::new(Callbacks))
.layout_tests(false)
.prepend_enum_name(false)
.generate_comments(false)
.disable_header_comment()
.formatter(Formatter::None)
.generate()
.expect("Unable to generate bindings");

bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");

fn build_mdbx() {
let mut mdbx = PathBuf::from(&env::var("CARGO_MANIFEST_DIR").unwrap());
mdbx.push("libmdbx");

Expand Down Expand Up @@ -117,3 +92,43 @@ fn main() {
.compile("libmdbx.a");
}
}

fn main() {
let mut mdbx = PathBuf::from(&env::var("CARGO_MANIFEST_DIR").unwrap());
mdbx.push("libmdbx");

let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());

let bindings = bindgen::Builder::default()
.header(mdbx.join("mdbx.h").to_string_lossy())
.allowlist_var("^(MDBX|mdbx)_.*")
.allowlist_type("^(MDBX|mdbx)_.*")
.allowlist_function("^(MDBX|mdbx)_.*")
.size_t_is_usize(true)
.ctypes_prefix("::libc")
.parse_callbacks(Box::new(Callbacks))
.layout_tests(false)
.prepend_enum_name(false)
.generate_comments(false)
.disable_header_comment()
.formatter(Formatter::None)
.generate()
.expect("Unable to generate bindings");

bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");

println!("cargo::rerun-if-env-changed=LIBMDBX_NO_VENDOR");
let no_vendor = env::var("LIBMDBX_NO_VENDOR").map_or(false, |x| x != "0");

if no_vendor {
println!("cargo:rustc-link-lib=mdbx");
if cfg!(windows) {
println!(r"cargo:rustc-link-lib=ntdll");
println!(r"cargo:rustc-link-search=C:\windows\system32");
}
} else {
build_mdbx();
}
}