Using pkg-config to find the libraries (+ some cleanup)

Dependencies

• [2] HELRYMZK Manual bindings (Windows and Clang aren't very good friends), and getting rid of anyhow
• [3] IH334Q5A Reboot
• [4] UPRY2FEL Remove bindgen dependency

Change contents

• replacement in default.nix at line 5
  [3.265968]→[3.13164:13240](∅→∅)
  − buildInputs = [ pkgconfig llvmPackages.libclang.lib cmake rust-bindgen ];
  [3.265968]

  [3.266031]
  + buildInputs = [ pkgconfig llvmPackages.libclang.lib cmake rust-bindgen zstd xxHash ];
• edit in build.rs at line 1
  [3.266097]→[3.13241:13283](∅→∅),[3.13283]→[3.266136:266137](∅→∅),[3.266136]→[3.266136:266137](∅→∅)
  − /*use std::env;

  − use std::path::PathBuf;*/

  −
• replacement in build.rs at line 11
  [3.266447]→[3.266447:266536](∅→∅),[3.266536]→[3.13284:13291](∅→∅),[3.13291]→[3.266536:269439](∅→∅),[3.266536]→[3.266536:269439](∅→∅),[3.269439]→[3.13292:13300](∅→∅)
  − println!("cargo:rustc-link-lib=zstd");

  − println!("cargo:rustc-link-lib=xxhash");

  −

  − /*

  − let bindings = bindgen::Builder::default()

  − .clang_arg("-Izstd/lib/common")

  − .clang_arg("-Izstd/lib")

  − .header("zstd/contrib/seekable_format/zstd_seekable.h")

  − .whitelist_function("ZSTD_CStreamInSize")

  − .whitelist_function("ZSTD_CStreamOutSize")

  − .whitelist_function("ZSTD_seekable_createCStream")

  − .whitelist_function("ZSTD_seekable_create")

  − .whitelist_function("ZSTD_seekable_initCStream")

  − .whitelist_function("ZSTD_seekable_initBuff")

  − .whitelist_function("ZSTD_seekable_initFile")

  − .whitelist_function("ZSTD_seekable_compressStream")

  − .whitelist_function("ZSTD_seekable_decompress")

  − .whitelist_function("ZSTD_seekable_endStream")

  − .whitelist_function("ZSTD_seekable_free")

  − .whitelist_function("ZSTD_seekable_freeCStream")

  − .whitelist_function("ZSTD_DStreamOutSize")

  − .whitelist_function("ZSTD_getErrorName")

  − .whitelist_function("ZSTD_seekable_getNumFrames")

  − .whitelist_function("ZSTD_seekable_getFrameCompressedOffset")

  − .whitelist_function("ZSTD_seekable_getFrameCompressedSize")

  − .whitelist_function("ZSTD_seekable_getFrameDecompressedOffset")

  − .whitelist_function("ZSTD_seekable_getFrameDecompressedSize")

  − .whitelist_function("ZSTD_seekable_decompressFrame")

  − .whitelist_function("ZSTD_seekable_offsetToFrameIndex")

  − .whitelist_function("ZSTD_isError")

  − .whitelist_function("ZSTD_seekable_freeFrameLog")

  − .whitelist_function("ZSTD_seekable_logFrame")

  − .whitelist_function("ZSTD_seekable_createFrameLog")

  − .whitelist_function("ZSTD_seekable_writeSeekTable")

  − .whitelist_function("ZSTD_compress")

  − .whitelist_function("xxh64")

  − //

  − .whitelist_function("ZSTD_createCStream")

  − .whitelist_function("ZSTD_initCStream")

  − .whitelist_function("ZSTD_freeCStream")

  − .whitelist_function("ZSTD_flushStream")

  − .whitelist_function("ZSTD_endStream")

  − .whitelist_function("ZSTD_compressStream")

  − .whitelist_function("ZSTD_compressStream2")

  − .whitelist_function("ZSTD_CStreamInSize")

  − .whitelist_function("ZSTD_CStreamOutSize")

  − //

  − .whitelist_function("ZSTD_createDStream")

  − .whitelist_function("ZSTD_initDStream")

  − .whitelist_function("ZSTD_freeDStream")

  − .whitelist_function("ZSTD_decompressStream")

  − .whitelist_type("ZSTD_inBuffer")

  − .whitelist_type("ZSTD_outBuffer")

  − .whitelist_type("ZSTD_frameLog")

  − .whitelist_function("ZSTD_seekable_initAdvanced")

  − .whitelist_type("ZSTD_seekable_customFile")

  − .generate()

  − .expect("Unable to generate bindings");

  −

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

  − bindings

  − .write_to_file(out_path.join("bindings.rs"))

  − .expect("Couldn't write bindings!");

  − */
  [3.266447]

  [3.269439]
  + pkg_config::probe_library("libzstd").unwrap();

  + pkg_config::probe_library("libxxhash").unwrap();
• replacement in Cargo.toml at line 4
  [3.269755]→[2.5023:5041](∅→∅)
  − version = "0.1.5"
  [3.269755]

  [3.269773]
  + version = "0.1.6"
• edit in Cargo.toml at line 33
  [3.270490]
  + pkg-config = "0.3"