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90 lines
3.2 KiB
Rust
90 lines
3.2 KiB
Rust
extern crate bindgen;
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extern crate pkg_config;
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use std::env;
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use std::path::PathBuf;
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// largely taken from https://rust-lang.github.io/rust-bindgen/tutorial-3.html
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fn main() {
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let plib = pkg_config::Config::new()
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.atleast_version("2.3.1")
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.probe("notcurses")
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.unwrap();
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// Tell cargo to invalidate the built crate whenever the wrapper changes
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println!("cargo:rerun-if-changed=build/wrapper.h");
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// The bindgen::Builder is the main entry point to bindgen, and lets you
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// build up options for the resulting bindings.
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//
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// allow .blacklist_function instead of .blocklist_function for now,
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// until we update bindgen to >= 0.58.
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#[allow(deprecated)]
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let mut builder = bindgen::Builder::default()
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.use_core()
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.ctypes_prefix("cty")
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.clang_arg("-D_XOPEN_SOURCE")
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// The input header we would like to generate builder for.
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.header("build/wrapper.h")
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// generate comments, also from headers and not just doc comments (///)
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.generate_comments(true)
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.clang_arg("-fretain-comments-from-system-headers")
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.clang_arg("-fparse-all-comments")
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// Remove warnings about improper_ctypes
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.blacklist_function("strtold")
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.blacklist_function("wcstold")
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.blacklist_function("socketpair")
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// only import functions from notcurses public API
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.blacklist_function("[^ns].*")
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.blacklist_function("n[^co].*")
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.blacklist_function("s[^i].*") // allow sig*
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// clean more unneeded types
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.blacklist_item("_BITS.*")
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.blacklist_item("_POSIX.*")
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.blacklist_item("__[A-Z].*")
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.blacklist_item("[ADHJ-MQ-Z].*")
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.blacklist_item("IP[^R].*")
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.blacklist_item("PF.*")
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.blacklist_item("MSG_.*")
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.blacklist_item("N[^C].*")
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.blacklist_type("_bindgen.*")
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// Don't derive the Copy trait on types with destructors.
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.no_copy("ncdirect")
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.no_copy("ncdplot")
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.no_copy("ncfdplane")
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.no_copy("ncmenu")
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.no_copy("ncmultiselector")
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.no_copy("ncplane")
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.no_copy("ncreader")
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.no_copy("ncreel")
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.no_copy("ncselector")
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.no_copy("ncuplot")
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.no_copy("ncvisual")
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.no_copy("notcurses")
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// try to derive more traits
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.derive_default(true)
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.derive_hash(true)
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.derive_partialord(true)
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.derive_ord(true)
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.derive_partialeq(true)
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.derive_eq(true)
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// Tell cargo to invalidate the built crate whenever any of the
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// included header files changed.
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.parse_callbacks(Box::new(bindgen::CargoCallbacks));
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for d in plib.include_paths {
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builder = builder.clang_arg(format!("-I{}", d.to_string_lossy()));
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}
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// Finish the builder and generate the builder.
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let bindings = builder.generate()
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// Unwrap the Result and panic on failure.
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.expect("Unable to generate bindings");
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// Write the bindings to the $OUT_DIR/bindings.rs file.
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let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
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bindings
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.write_to_file(out_path.join("bindings.rs"))
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.expect("Couldn't write bindings!");
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}
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